Biological agent capable of lowering ammonia nitrogen in intensive culture pond as well as preparation method and using method of biological agent

The invention discloses a biological agent capable of lowering ammonia nitrogen in an intensive culture pond as well as a preparation method and a using method of the biological agent, belonging to the field of biological agents. The biological agent is prepared from the following raw materials in parts by weight: 5-15 parts of a fungicide, 30-40 parts of a long-acting carbon source and 30-40 parts of a quick-acting carbon source. The biological agent disclosed by the invention has the beneficial effect that the problem in the existing aquaculture that ammonia nitrogen is relatively high and cannot be lowered by virtue of an effective biological method is solved. After being used for a long time, the biological agent disclosed by the invention can be used for acclimating and directionally culturing heterotrophic microbes in water to achieve effects of stabilizing a breeding ecological system, lowering ammonia nitrogen, stabilizing water quality and improving the self-cleaning capacity of ...

Instant-matching type multi-chamber non PVC large transfusion soft bag and its production line

Novel ternary thermal composite material and preparation method thereof

The invention discloses a novel ternary thermal composite material and a preparation method thereof. The material comprises the following components in volume ratio: at least 15vol% and at most 30vol% of Cu, at least 70vol% and at most 85vol% of W+diamond, at least 70vol% (W+diamond) and less than 100vol% (W+diamond) of W, and more than 0vol% (W+diamond) and at most 30vol% (W+diamond) of diamond. The preparation method comprises the following steps: selecting the raw materials including W, Cu and diamonds, weighing in proportion, mixing by using planetary ball milling, and then sintering by using vacuum hot-pressing to obtain a compact W-Cu-Diamond ternary thermal composite material. The novel ternary thermal composite material has the advantages of high compactness, uniform and stable texture structure, light weight, excellent mechanical property and thermal property and adjustable thermal expansion coefficient; the preparation process is simple and good in repeatability.

Method for preparing microsphere composite foam material

The invention belonging to a foam material field relates to a preparation method for micro-sphere compound foam materials, which is characterized in comprising the following steps: 1) steps of batch mixing, bubble exhausting and molding: according to that a hollow micro-sphere is epoxide resin with weight of 0.1 to 6 wt%, firming agent is the epoxide resin with weight of 10-15wt%, plasticiser is the epoxide resin with weight of 0-20wt% and the diluent is the epoxide resin with weight of 0-20wt%, selection; stirring and mixing to get mixed materials, then a rolling and bubble exhausting treatment is carried out to the mixed materials by a rolling machine and then resin slurry mixed evenly is obtained, then the resin slurry is poured into a module to get molded; 2) earlier low temperature solidification step: the module containing the resin slurry is put into a container with low temperature and vacuum condition for solidification for 5 to 10 hours to get high viscosity resin slurry; 3) later ...

Manufacturing method for wind-rain resistant vibration damping inhaul cable with two spiral lines

The invention relates to a method in the technical field of bridge machines, in particular to a manufacturing method for a wind-rain resistant vibration damping inhaul cable with two spiral lines. The method mainly comprises the following steps: (1) selecting high strength galvanized steel wires, spiral ribs and the spiral lines; (2) performing blanking and twisting on steel wires, and twisting bundles of the steel wires concentrically in the left direction; (3) enwrapping wrapping tapes outside the twisted bundles of the steel wires, wherein the overlapping width of a single layer is less than one third of the width of the tape; (4) performing extrusion molding and winding the spiral ribs; and (5) cutting off marks, manufacturing an anchor, performing super tensioning, and packaging. The method has simplicity, effectiveness and easy operation, solves a series of technical problems of rotation, sealing, temperature rising and high temperature resistance of a spiral line extrusion coating ...

System for mechanically pumping excreta of fish bodies in feeding cage

The invention discloses a system for mechanically pumping the excreta of fish bodies in a feeding cage, which comprises at least one aquaculture net cage, and a floating device and a fish excreta collector which are arranged corresponding to the aquaculture net cage, wherein the floating device is fixed and suspended on water by a mounting bracket at the top of the aquaculture net cage; the aquaculture net cage and the fish excreta collector are connected with the floating device respectively; an excreta collection barrel is arranged at the bottom of the fish excreta collector, and is connected with an excreta pumping machine by an excreta pumping pipe; and the fish excreta collector is provided with a vibrating retaining ring which is connected with a vibrating rope. The system can perform excreta pumping processing on a plurality of groups of aquaculture net cages by utilizing only one excreta pumping machine, and has the characteristics of high excreta pumping efficiency, cost reduction ...

Double spiral wind-rain resistant vibration damping method

Chlobipram hydrobromide crystal form and preparation method thereof

The invention relates to a clobipram hydrobromide crystal form and a preparation method thereof, clobipram is used as a novel PDE4 inhibitor, at the early stage of drug research and development and at the very necessary stage of preparing a clobipram compound into a salt, the physical and chemical properties of the clobipram compound, such as solubility, crystallinity, hygroscopicity, melting point, solid stability and the like, can be improved. In view of the purpose, the crystal form of the clobipram hydrobromide is successfully synthesized through a drug salt sieve experiment, and compared with the clobipram, after the crystal form of the clobipram hydrobromide is salified, the crystallinity is not changed greatly, the polycrystal phenomenon of the salt is not found, the solubility is not obviously changed, the melting point is slightly increased, and the crystal form is not easy to absorb moisture; and a choice is provided for final salification of the medicine.

Cover welding equipment for infusion container

The invention discloses cover welding equipment for an infusion container. The cover welding equipment comprises a rack assembly (1), a cover taking mechanism (2), a clamp (3) and a heating mechanism (4), wherein the cover taking mechanism (2) is slidably connected with the rack assembly (1); the clamp (3) is arranged below the cover taking mechanism (2) and is connected to the rack assembly (1); the heating mechanism (4) is slidably connected with the rack assembly (1); a first heating part (41) and a second heating part (42) are fixedly connected with the heating mechanism (4); the first heating part (41) is used for heating a sealing cover (5) on the cover taking mechanism (2); and the second heating part (42) is used for heating a connector of the infusion container (6) on the clamp (3). The cover welding equipment for the infusion container disclosed by the invention has the advantages of strong commonality, simple structure and convenience for operation.

System for mechanically pumping excreta of fish bodies in feeding cage

The invention discloses a system for mechanically pumping the excreta of fish bodies in a feeding cage, which comprises at least one aquaculture net cage, and a floating device and a fish excreta collector which are arranged corresponding to the aquaculture net cage, wherein the floating device is fixed and suspended on water by a mounting bracket at the top of the aquaculture net cage; the aquaculture net cage and the fish excreta collector are connected with the floating device respectively; an excreta collection barrel is arranged at the bottom of the fish excreta collector, and is connected with an excreta pumping machine by an excreta pumping pipe; and the fish excreta collector is provided with a vibrating retaining ring which is connected with a vibrating rope. The system can perform excreta pumping processing on a plurality of groups of aquaculture net cages by utilizing only one excreta pumping machine, and has the characteristics of high excreta pumping efficiency, cost reduction ...

Double spiral wind-rain resistant vibration damping method

The invention relates to a vibration damping method in the technical field of bridge machines, in particular to a double spiral wind-rain resistant vibration damping method. The method mainly comprises the following steps: (1) twisting steel wires; (2) enwrapping, wherein enwrapping layers are uniform and compact and have no damage; (3) performing extrusion molding on a bundle of steel wires, winding spiral ribs, and extruding two cover layers of black PE and multicolor PE outside the enwrapped bundle of the steel wires, wherein the cover layers are wrapped compactly; (4) cutting off marks; (5) manufacturing an anchor; (6) performing super tensioning; and (7) packaging. The method inhibits the damage of wind-rain induced vibration to inhaul cables, and improves the service life of the inhaul cables.

Preparation method of nano Zr2O powder with controllable particle size

The invention discloses a preparation method of nano Zr2O powder with a controllable particle size, which comprises the following steps: by adopting a method of combining ultrasonic atomization with chemical vapor deposition, putting a prepared precursor solution into an ultrasonic atomization device, atomizing to form fog drops, heating a tubular furnace, and after the temperature of a reaction area is increased to a reaction temperature, cooling to room temperature to obtain the nano Zr2O powder with the controllable particle size. And introducing carrier gas to enable the fog drops in the ultrasonic atomization device to enter the tubular furnace along with the carrier gas, so that the fog drops can be decomposed and deposited at high temperature in a reaction area of the tubular furnace, thereby generating the nano Zr2O powder with controllable particle size. According to the preparation method of the nano Zr2O powder with the controllable particle size, the diameter of the fog drops ...

One-step synthesis-stripping method of ferronickel layered double hydroxide

The invention discloses a one-step synthesis-stripping method of ferro-nickel layered double hydroxides. The method comprises the following main preparation steps: respectively preparing a double-metal solution and a complexing agent solution with certain concentrations; dropwise adding the complexing agent solution into the bimetallic solution to obtain a stable solution to be treated; and carrying out ultrasonic treatment on the solution to be treated, centrifugally washing a precipitation product by using ultrapure water and ethanol after the treatment is finished, and finally carrying out vacuum drying to obtain the large-interlayer-spacing nickel-iron layered double-metal hydroxide. The one-step synthesis-stripping method of the ferro-nickel layered double hydroxide is mild in reaction condition, simple in raw material, simple and convenient to operate, good in stripping effect, high in efficiency, free of stripping solvent and atmosphere protection in the stripping process, green ...

Manufacturing process for anti-corrosion type composite inhaul cable

The invention relates to a manufacturing process in the field of engineering building technology, in particular to a manufacturing process for an anti-corrosion type composite inhaul cable. The method mainly comprises the following steps: (1) performing blanking on galvanized steel wires, twisting the steel wires, filling a corrosion resistant compound in gaps among the steel wires, and winding the steel wires; (2) performing extrusion molding of a double-layer polyethylene protection layer; (3) cutting off the inhaul cable according to the blanking length, and performing anchor manufacturingat two ends; (4) performing super tensioning on the inhaul cable; and (5) packaging, marking and transporting. The manufacturing method uses the characteristics from dispersion to convergence in the process of twisting the steel wires, and completes the filling of the corrosion resistant compound in the twisting process to make the corrosion resistant compound fully filled in the gaps among the steel ...

Intelligent horizontal cable releasing method

The invention relates to mounting of a cable used for bridges and structures, in particular to an intelligent cable releasing method. PLC (programmable logic control) control is adopted, so as to display, store and regulate various data in cable releasing process. The method comprises the steps as follows: selecting an automatic or manual cable releasing mode; releasing a cable according to the set velocity and resistance; automatically regulating and recording the height of a guide pulley, wherein emergency stop can be realized; measuring and recording the released length and releasing speedof the cable; and displaying and recording oil press motor current, oil pressure and oil temperature. Tractive force, counter pull and pulling speed in the suspension cable band releasing process aremonitored in real time, and key data are displayed and stored, so as to draw a curve graph. The invention can realize high quality and high efficiency for cable releasing construction.

Crystal form of clobipram hydrochloride and preparation method thereof

The invention relates to a clobipram hydrochloride crystal form and a preparation method thereof, clobipram is a novel PDE4 inhibitor, in the early stage of drug research and development, the preparation of a clobipram compound into a salt is a very necessary stage, and the physicochemical properties of the clobipram compound, such as solubility, crystallinity, hygroscopicity, melting point, solid stability and the like, can be improved. In view of the purpose, the crystal form of the clobipram hydrochloride is successfully synthesized through a drug salt sieve experiment, compared with the clobipram, the crystal form of the clobipram hydrochloride has the advantages that the crystallinity change is small, the polycrystal phenomenon of salt is not found, the stable temperature is low, the highest stable temperature is between 50 DEG C and 115 DEG C, and a choice is provided for final salification of drugs.

High-brittleness phase composite material with multi-layer structure and preparation method of high-brittleness phase composite material

The invention relates to a high-brittleness phase composite material with a multilayer structure and a preparation method thereof. The method comprises the following steps: uniformly mixing high-brittleness materials such as barium sulfate and melamine with fluororesin, pressing the mixture into a series of single-layer sheets, laying a resin material on one of the single-layer sheets, pre-pressing the resin material, placing the other single-layer sheet, carrying out laminated pre-pressing, repeating the operations of laying the resin, placing the sheets, and carrying out laminated pre-pressing for a plurality of times, finally, the high-brittleness phase composite material with the tensile strength reaching up to 4.6 MPa at 20 DEG C is obtained. The composite material with different macrostructures is prepared by adopting a multi-layer mixing hot-pressing technology, and the whole preparation process is relatively simple, does not need to use an external field effect, is easy to implement ...

Method for connecting and sealing hot-extrusion coating steel wire inhaul cables and cable clips

The invention relates to a sealing method in the technical field of bridges and construction engineering, in particular to a method for connecting and sealing hot-extrusion coating steel wire inhaul cables and cable clips. The method mainly comprises the following steps: (1) stripping hot-extrusion PE protective sleeves with corresponding length on mark points of the cable clips of a suspension cable by a hot melt method to make steel wires exposed outside; (2) filling elastic sealing glue on the periphery of the inner wall of great circle counter bores on two sides of each cable clip evenly; (3) arranging and fastening a left cable clip and a right cable clip through bolts; (4) arranging two rubber insertion strips at the left end and the right end of each cable clip respectively, pressing the rubber insertion strips into the counter bores, sealing gaps among the insertion strips by the sealing glue, and after finishing, filling silica gel from outside in turn for sealing; and (5) applying ...

连续旋转式全自动组盖机

The invention is a continuous rotating full auto cap assembler, including frame, driving shaft, cap moving slide wheel, press head device, and electric control device, where all the devices are controlled by the electric control device and linked with the driving shaft, and its character: there are outer cap, rubber pad and inner cap building devices set on the sides of the cap moving slide wheel, the outlets of the cap building channels on the three cap building devices are linked with the inlets of the cap moving slide wheel; there is the press head device above the cap moving slide wheel, linked with air valve, air inlet pipe and aspirator pipe and able to move up and down, the press head device is installed on the rotary disc and set with a cap taking and pressing press head, where the press head's center and the position center of the cap moving slide wheel able to hold cap or rubber pad are on the same line. It can continuously take and press cap, thus largely increasing speed; it ...

Preparation method of trace element composite doping modified tin antimony oxide (ATO) ceramic target

The invention provides a preparation method of a trace element composite doping modified tin antimony oxide (ATO) ceramic target. The preparation method is characterized by firstly weighing ATO powder with antimony oxide mass percentage of 0.1-1.0% and then respectively weighing manganese oxide and copper oxide powder to serve as composite doping modifying agents according to 0.5-1.0% of the total mass of the ATO powder; ball-milling the powder together with an organic solvent and mixing balls in a mass ratio of (1:1:1)-(1:2:1), putting the obtained slurry into a baking oven to be baked at low temperature until organic solvent evaporation is completed, then grinding the product and sieving the product with an open sieve to obtain mixed powder; after the mixed powder is subjected to intercooling and isostatic pressing in a die, sintering the green body in the air atmosphere by adopting the mode of pressureless sintering, thus obtaining the ceramic target, wherein the heating rate is 0.5- ...

Metal powder non-water-based curtain coating slurry and preparation method thereof

The invention relates to a non-water based pulp for tape casting and a preparing method thereof. The metal powder non-water based pulp for tape casting is characterized in that the metal powder non-water based pulp for tape casting is prepared from raw materials such as metal powder, a dispersant Hypermer KD-1, polyvinyl-butyral, a plasticizer and a solvent; and the raw materials in percentage by mass are 40 to 75 percent of the metal powder, 0.4 to 2 percent of the dispersant HYPERMER KD-1, 1 to 4 percent of the polyvinyl-butyral, 1 to 5 percent of the plasticizer and 14 to 57.5 percent of the solvent, wherein the plasticizer is one of the following two: (1) polymethylmethacrylate, and (2) a mixture of polyethylene glycol and glycerin, and the mass ratio of the polyethylene glycol to the glycerin is 1:1; and the solvent is one of the following two: (1) butanone, and (2) a mixture of absolute ethyl alcohol and the butanone, and the mass ratio of the absolute ethyl alcohol to the butanone ...

Method for preparing resin-base composite material containing metal particle

The invention relates to a preparation method of a resin matrix composite material filled with metal particles, in particular to a preparation method of a resin matrix composite material containing metal particles. The invention is characterized in that: the invention comprises the steps: 1) dried metal powder and surface modifier are mixed with solvent, and then the mixture obtained is heated and refluxed with the protection of inert gas under 80-150 DEG C, thus forming suspension; 2) the suspension is classified to obtain suspension with single particle-sized particles, which is then extracted and filtered, thus obtaining single particle-sized modified metal powder; 3) the modified metal powder obtained in the step 2) is added into the resin matrix, in which thixotropic agent and curingagent are added, and then a vacuum stirrer and a ultrasonic vibrating device are used together to stir and vibrate the mixture obtained; 4) the mixture obtained in the step 3) after mixed is poured into ...

Transfusion container production line

The invention discloses a transfusion container production line which comprises a rack (1), a rotary table (2) and a drive mechanism (3), wherein the rotary table (2) is rotatably arranged on the rack (1), the drive mechanism (3) is arranged on the rack (1), an annular guide rail (4) is arranged on the rack (1) along the rotary table (2), a sliding block (5) is connected onto the guide rail (4) in a sliding manner, the sliding block (5) is fixedly connected with a clamp (6) hinged on the rotary table (2), a first overturning region (7) and a second overturning region (8) are arranged on the guide rail (4), a transfusion container cleaning device (10), a filling device (11) and a sealing device (12) are sequentially arranged on the rack (1) along the guide rail (4), and the transfusion container cleaning device (10) is arranged on the guider rail (4) and positioned between the first overturning region (7) and the second overturning region (8). The invention provides transfusion container ...

Sealing device for soft infusion bag production line and soft infusion bag production line

The invention discloses a sealing device for a soft infusion bag production line. The sealing device comprises a welding mechanism. The welding mechanism comprises a first welding mechanism and a second welding mechanism. The first welding mechanism is provided with a first welding opening. The first welding opening is matched with an opening cover on a cover pressing mechanism. The second welding mechanism is provided with a second welding opening. The second welding opening is matched with the opening cover on the cover pressing mechanism. The first welding opening and the second welding opening are used for welding the opening cover and a connector of a soft infusion bag. The sealing device for the soft infusion bag production line is simple in structure and convenient to operate, and better sealing connection of the connector of the soft infusion bag obtained after being filled and the opening cover can be achieved.

Manufacturing process for anti-corrosion type composite inhaul cable

The invention relates to a manufacturing process in the field of engineering building technology, in particular to a manufacturing process for an anti-corrosion type composite inhaul cable. The method mainly comprises the following steps: (1) performing blanking on galvanized steel wires, twisting the steel wires, filling a corrosion resistant compound in gaps among the steel wires, and winding the steel wires; (2) performing extrusion molding of a double-layer polyethylene protection layer; (3) cutting off the inhaul cable according to the blanking length, and performing anchor manufacturing at two ends; (4) performing super tensioning on the inhaul cable; and (5) packaging, marking and transporting. The manufacturing method uses the characteristics from dispersion to convergence in the process of twisting the steel wires, and completes the filling of the corrosion resistant compound in the twisting process to make the corrosion resistant compound fully filled in the gaps among the steel ...

Preparation method for diamond/copper-based composite material

The invention relates to the field of diamond/copper-based composite materials and preparation technologies thereof, and specifically discloses a diamond/copper-based composite material and a preparation method thereof. Mass fraction of the diamond in the composite material is 20%-50%, and diamond particles are uniformly distributed in a matrix. The specific preparation method comprises the following steps: firstly, preparing copper-coated titanium-coated diamond composite powder; then, mixing the copper-coated titanium-coated diamond composite powder with copper powder to form mixed powder; and finally, preparing a sintering test sample with high compactness by surface activating and plasma activating and sintering. The plasma activating and sintering process is as follows: a heating rate is 50-200 DEG C/min, vacuum degree is not greater than 10Pa, pressure applied while sintering is 30-40 MPa, a sintering temperature is 800-900 DEG C, and a heat preserving time is 5-7 minutes. The prepared ...

Method diffusion welding titanium alloy and copper alloy using niobium central layer

The invention relates to a method for welding titanium alloy and copper alloy. A method for diffusion-welding titanium alloy and copper alloy by using niobium intermediate layer is characterized in that the method comprises the following steps: (1) selecting niobium foil or powder as the intermediate layer for connecting a titanium alloy sheet and a copper alloy sheet, and cleaning the surfaces to be welded of the titanium alloy sheet and the copper alloy sheet; (2) arranging the niobium intermediate layer between the titanium alloy sheet and the copper alloy sheet, putting the whole into a graphite mold, transferring the graphite mold into a vacuum welding furnace, and applying a pre-pressure of 0.5 to 2 MPa to compress the mold; and (3) vacuuming the vacuum welding furnace, heating when the vacuum degree is larger than 5*10<-3> Pa with a speed of 2 to 10 DEG C/min to 700 to 850 DEG C, keeping the temperature for 30 to 60 min, applying an axial pressure of 5 to 10 MPa before keeping the ...

Unpowered rotatory spillage device

The utility model relates to an equipment that used in the agriculture and animal husbandry field, the purpose provides an unpowered rotatory spillage device, and the device need not external power to can rotate the spillage uniformly. The spillage device includes the inlet pipe, and the inlet pipe is fixed on load -bearing platform, and the bearing is connected to the inlet pipe upper end, the lower extreme is used for connecting the conveying pipeline, the spillage pipe is connected to the bearing top, has the radial degree of curvature of skew bearing on the spillage pipe. The utility model discloses a device not only has the advantage of long -range batching, pneumatic conveying, automatic spillage. And be located the spillage device simple structure on the surface of water, the dead weight is light, and is easy to assemble, saves the cost. And the no external power of device operation, the running cost is low, and the safety in utilization is good, and the noiselessness maintains easily ...

Method for connecting and sealing hot-extrusion coating steel wire inhaul cables and cable clips

The invention relates to a sealing method in the technical field of bridges and construction engineering, in particular to a method for connecting and sealing hot-extrusion coating steel wire inhaul cables and cable clips. The method mainly comprises the following steps: (1) stripping hot-extrusion PE protective sleeves with corresponding length on mark points of the cable clips of a suspension cable by a hot melt method to make steel wires exposed outside; (2) filling elastic sealing glue on the periphery of the inner wall of great circle counter bores on two sides of each cable clip evenly;(3) arranging and fastening a left cable clip and a right cable clip through bolts; (4) arranging two rubber insertion strips at the left end and the right end of each cable clip respectively, pressing the rubber insertion strips into the counter bores, sealing gaps among the insertion strips by the sealing glue, and after finishing, filling silica gel from outside in turn for sealing; and (5) applying ...

Self-cooling case of computer

The invention discloses a computer self-cooling case, and relates to the technical field of computer cases, the computer self-cooling case comprises a case, a rear cover is assembled on the back of the case, and a front cover is assembled on the front of the case. According to the computer self-cooling case, the air bag deformed by negative pressure is rebounded to the initial state through the spring, and during rebounding, hot air on the inner side of the case is actively sucked into the inner cavity of the heat collection hopper to be stored by means of the one-way valve, so that the situation that heat is continuously gathered on the inner side of the case to interfere with normal operation of internal elements is avoided; heat on the inner side of the case is enriched through heat transfer, a part of the heat dissipation and cooling functions of the case are actively undertaken, the phenomenon that the temperature in the case is too high within a short time is avoided, temporary enrichment ...

Fishing light integration pond oxygenation system

The utility model relates to an aquaculture equipment field, concretely relates to fishing light integration pond oxygenation system, the technical scheme who adopts is: a fishing light integration pond oxygenation system, is including arranging that connect the dc -to -ac converter input at the overhead solar power system in pond, supply circuit and electric wire netting interface are connected to the inverter output end, supply circuit includes the battery, and a plurality of oxygenation devices that are used for for pond oxygenation are connected to the battery, the utility model discloses effectively utilize pond surface of water top solar energy, turn into it and drive the oxygenation device after the electric energy and for pond oxygenation, be favorable to aquaculture, improved the benefit in unit area pond.

Simple high-yielding and ecological environment-friendly cultivation system

The invention provides a simple high-yielding and ecological environment-friendly cultivation system. The system comprises a fish and vegetable intergrowth culture pond, a sewage treatment system, a water purification area and a water return culture pond reutilization system, wherein the fish and vegetable intergrowth culture pond, the sewage treatment system, the water purification area and the water return culture pond reutilization system are communicated in sequence. A bottom sewage extraction system is arranged in the fish and vegetable intergrowth culture pond and communicated with the sewage treatment system through a pipeline. Compared with the prior art, the simple high-yielding and ecological environment-friendly cultivation system has the advantage of integrating in-situ ecological treatment technologies such as a fish and vegetable intergrowth technology and a microorganism curing technology and heterotopia ecological treatment technologies such as a bottom sewage extraction ...

Load -bearing platform of surface of water spillage device

The utility model relates to an equipment that used in the agriculture and animal husbandry field, the purpose provides load -bearing platform of surface of water spillage device, matches unpowered rotatory spillage device specially and uses. Load -bearing platform includes the vertical rod that upper end and inlet pipe are connected, and the pole body top -down of vertical rod connects gradually the floater and weighs with weighing down. The vertical rod on, the floater upside is fixed sets up the connection piece, a plurality of connecting holes of equipartition or go -between on the connection piece, but floater cover disposed on vertical rod on constitute sliding fit each other, weigh down heavy detachable connection at the vertical rod lower extreme. The utility model discloses a special adaptation is unpowered to be rotatable surface of water spreader. The load -bearing platform dead weight is light, and the volume is light and handy, is fit for need not to set up the surface of water ...

Method and apparatus for realizing virtual local area network (VLAN) domain mapping and access control

The invention discloses a method and apparatus for realizing virtual local area network (VLAN) domain mapping and access control. The method comprises: receiving a data packet sent by a user network interface ( in case of an unlink direction) or a PON special-purpose interface (in case of a downlink direction); extracting packet header data of the data packet, marking and identifying the packet header data, obtaining a VLAN ID of the data packet, and obtaining a user network interface number; according to the user network interface number and the VLAN ID, querying an access control table or a VLAN conversion configuration table, and obtaining a VLAN domain conversion mode and a data packet processing mode; and according to the data packet processing mode, processing the data packet, and according to the VLAN domain conversion mode, converting a VLAN domain. According to the invention, access control and VLAN domain mapping are flexibly realized, the chip area is effectively reduced, the ...

Method for preparing boron carbide ceramic

The present invention relates to a preparation method of boron carbide ceramics. In particular, the preparation method comprises the following steps: first, boron powder and carbon powder are weighed and mixed with the molar ratio of boron and carbon equal to 0.5 to 22.5; secondly, the powder prepared in the first step is arranged in a die and transmitted to discharging plasma sintering equipment for sintering, and the temperature is raised to be between 1300 and 2200 DEG C under the vacuum conditions; thirdly, the die is taken out from the discharging plasma sintering equipment and cooled to be at the room temperature; then the die is drawn away and thus the final product is prepared. In the preparation method, the direct synthesis and densification of boron carbide are completed in one step; the powder is sintered under the vacuum conditions; and the prepared boron carbide ceramics has the advantages of high purity, variety in the ratio of boron and carbon, and high hardness.

Method for preparing resin-base composite material containing metal particle

The invention relates to a preparation method of a resin matrix composite material filled with metal particles, in particular to a preparation method of a resin matrix composite material containing metal particles. The invention is characterized in that: the invention comprises the steps: 1) dried metal powder and surface modifier are mixed with solvent, and then the mixture obtained is heated and refluxed with the protection of inert gas under 80-150 DEG C, thus forming suspension; 2) the suspension is classified to obtain suspension with single particle-sized particles, which is then extracted and filtered, thus obtaining single particle-sized modified metal powder; 3) the modified metal powder obtained in the step 2) is added into the resin matrix, in which thixotropic agent and curing agent are added, and then a vacuum stirrer and a ultrasonic vibrating device are used together to stir and vibrate the mixture obtained; 4) the mixture obtained in the step 3) after mixed is poured into ...

Environment-friendly nutritional compound feed capable of improving body color of sparus latus cultured in pond or net cage

The invention discloses environment-friendly nutritional compound feed capable of improving the body color of sparus latus cultured in a pond or a net cage. The compound feed comprises 20%-40% of fish meal, 3%-6% of extruded soybeans, 5%-20% of soybean meal, 5%-15% of peanut meal, 1%-3% of fine bran, 4%-8% of corn protein powder, 15%-30% of flour, 2%-6% of wheat gluten protein, 2%-5% of phospholipid oil, 2%-5% of fish oil, 2%-6% of body color modifier, 0.2%-0.5% of decavitamin, 1%-3% of compound minerals, 0.3%-1% of phagostimulant, 0.05%-0.15% of choline chloride, 0.02%-0.04% of mildew preventive, 0.01%-0.03% of chromium picolinate, 0.2%-0.5% of vitamin C phosphate ester, 0.01%-0.03% of beta-glucan, 0.01%-0.03% of Vitamin E and 0.02%-0.05% of high-temperature-resistant phytase. The environment-friendly nutritional compound feed aims to solve the problem that the body color of the sparus latus is dark when the sparus latus is cultured in the pond or the net cage, promote the sparus latus ...

Preparation method for CNT (Carbon Nanotube)-enhanced W-Cu thermal composite material

The invention relates to a preparation method for a CNT (Carbon Nanotube)-enhanced W-Cu thermal composite material. The preparation method comprises the steps of: preparing Cu@CNT composite coated powder and Cu@W composite coated powder by adopting a coating method, then performing ball-milling and evenly mixing the Cu@CNT composite coated powder and Cu@W composite coated powder according to the volume percent of Cu@CNT equal to 0.1%-10.0% and Cu@W equal to 90.0%-99.9%, performing cold isostatic pressing to the evenly mixed powder under 100-500MPa, to obtain a blank, finally putting the blank into a vacuum hot pressing furnace for sintering, to obtain the CNT-enhanced W-Cu thermal composite material. The high-compactness CNT-enhanced W-Cu thermal composite material can be obtained and has the advantages of being high in thermal conductivity, strong in binding force between the W and Cu interface, and the like.

Transparent super-hydrophobic coating in gradient composite structure and preparation method thereof

The invention relates to a method for preparing a transparent super-hydrophobic coating in a function gradient composite structure and taking alkyl alkoxy silane as a carrier, epoxy resin and trimethyl chlorosilane (TMCS) as modifiers. The gradient composite structure of the coating comprises an epoxy bottom surface adhesive layer, an alkyl alkoxy silane hydrophobic intermediate layer, and a surface modification function layer. The method comprises the following steps: firstly, coating the epoxy bottom surface adhesive layer on a substrate, then coating the alkyl alkoxy silane hydrophobic intermediate layer, and finally further improving the hydrophobicity by using TMCS. The nano-particles on the coating surface are uniform; the contact angle is greater than 150 degrees, and the rolling angle is less than 2 degrees; the coating has good hydrophobic performance; the coating has good mechanical performance, and can bear silk friction for 50 times at 5Kpa; the coating has good light transmittance.The ...

Device for welding plastic infusion bottle hanging rings

The invention discloses a device for welding plastic infusion bottle hanging rings. The device comprises a rack assembly (1), a conveying mechanism (2) and a hanging ring welding mechanism (3), wherein the conveying mechanism (2) is mounted on the rack assembly (1); a follow fixture (4) is fixedly mounted on the conveying mechanism (2) and is used for fixing plastic bottle blanks; the hanging ring welding mechanism (3) is arranged right above the follow fixture (4) and is fixedly installed on the rack assembly (1), a hanging ring welding slot (5) is formed in a part, opposite to the follow fixture (4), on the hanging ring welding mechanism (3) and is used for heating and fusing apexes of the plastic infusion bottle blanks assembled with hanging rings. The device can be used for automatically welding the plastic infusion bottle hanging rings, and is simple in structure, stable in performance and high in production efficiency.

Low-temperature diffusion welding method for magnesium alloy and aluminum alloy

The invention discloses a low-temperature diffusion welding method for magnesium alloy and aluminum alloy. The method comprises the following steps of: (1) workpiece surface cleaning: processing a magnesium alloy plate and an aluminum alloy plate to a specified size, and removing oxide layers from to-be-welded surfaces thereof; (2) workpiece assembly: placing a tin-zinc alloy foil serving as a middle layer between the aluminum alloy plate and the magnesium alloy plate, and placing a solder mask on and below the plates respectively to form a welded workpiece; and (3) charging the workpiece into a furnace and welding: putting the welded workpiece into a vacuum diffusion welding furnace, performing heating and heat preservation, applying an axial pressure to the welded workpiece when the heat preservation begins, and releasing the pressure when the heat preservation is finished. The method can effectively overcome the defect that the prior art cannot realize high-quality welding between the ...

Filling positioning device

The invention discloses a filling positioning device. The filling positioning device comprises a filling bracket (1), a turntable (2), a filling shaft (3) and a turntable shaft (4), wherein a base (6) is mounted on the turntable (2), is put around the filling shaft (3), and can rotate with the turntable (2); a positioning groove (7) is formed in the base (6); and a positioning key (8) is arranged on the filling shaft (3), and is matched with the positioning groove (7) to enable the positioning key (8) to be positioned in the positioning groove (7) along with each downward vertical movement of the filling shaft (3). The rotary tracking type filling positioning device, provided by the invention, realizes accurate positioning of a filling needle and a bottle opening, and effectively prevents the collision phenomenon between the filling needle and the bottle opening caused by inaccurate tracking of the filling needle.

Preparation of high compactness stannic oxide ceramic

The invention relates to a method for preparing a SnO2 ceramic, in particular to the method for preparing a high-density tin dioxide ceramic, which is characterized in that the method comprises the following steps: 1) material preparation: according to the mass of a sintering auxiliary agent which is 0.5 to 5.0 percent of that of SnO2 powder, selecting the sintering auxiliary agent and the SnO2 powder, wherein the sintering auxiliary agent is MnO2 powder and CuO powder; 2) ball milling and material mixing: putting the SnO2 powder, the CuO powder, the MnO2 powder, an organic solvent and a material mixing ball into a ball milling jar, and mixing the materials in a planetary ball mill to obtain slurry; 3) drying: pouring the slurry into a glass container, and putting the container into a baking oven to perform low-temperature baking until a solvent is volatilized completely, and then grinding the slurry and screening the slurry through an opening sieve to obtain mixed powder; 4) cold isostatic ...

Method for preparing Ag/PMMA (polymethyl methacrylate) nano composite material

The invention provides a method for preparing an Ag/PMMA (polymethyl methacrylate) nano composite material. Particularly, in the method, PMMA is used as a polymer matrix; PMMA is the English abbreviation of polymethyl methacrylate; silver nitrate is used as an Ag source; PVP (Polyvinyl Pyrrolidone) is used as a dispersing agent; PVP is the English abbreviation of polyvinyl pyrrolidone; DMF (N,N-dimethyl formamide) is used as a solution solvent and a reducing agent; and DMF is the English abbreviation of N,N-dimethyl formamide. The method comprises the following steps of: heating the PMMA, the silver nitrate, the PVP and the DMF and performing a reaction to obtain Ag/PMMA nano sol containing Ag nano particles; then removing the reducing agent DMF in the Ag/PMMA nano sol by adopting a solvent precipitation method; drying the obtained product; and carrying out heating and forming on the dried product to obtain the Ag/PMMA nano composite material. The method adopts a simple preparation process ...

Continuous oiling grease gun

The utility model provides a continuous oiling grease gun, the upper portion at an oil storage section of thick bamboo is installed to the oiling cylinder body, it installs on the oiling cylinder body to annotate oil pipe, the installation pushes away oil piston in the oil storage section of thick bamboo, push away oil piston by the spring -supported, push away the ring channel liam dress gun barrel sealing washer on the oil piston, it enters the oil extraction chamber to be equipped with a left side in the oiling cylinder body, the oil extraction chamber is entered on the right side, the valve ball chamber, left piston is put into advance the oil extraction chamber in on a left side, right piston is put into advance the oil extraction chamber in on the right side, be equipped with left valve port in the oiling cylinder body, right side valve port, put into the switch valve ball in the valve ball chamber, left side piston, right side piston is linked together by the linkage board and realizes ...

Preparation of stannic oxide electrode ceramic material

The invention relates to a method for preparing a SnO2 electrode ceramic, in particular to the method for preparing a tin dioxide electrode ceramic material, which is characterized in that the method comprises the following steps: 1) material preparation: according to the mass of a sintering auxiliary agent which is 0.5 to 1.0 percent of that of SnO2 powder, selecting MnO2 powder and CuO powder as sintering auxiliary agents; and according to the mass of Sb2O3 powder which is 0.1 to 1.0 percent of that of SnO2 powder, selecting powder raw materials; 2) granulation: putting the powder raw materials, an organic solvent and a material mixing ball into a ball milling jar, and mixing the materials in a planetary ball mill; and pouring the evenly-mixed slurry into a container and putting the container into a baking oven to perform low-temperature baking until the organic solvent is volatilized completely, and then grinding the slurry and screening the slurry through an opening sieve to obtain ...

Capping machine

The invention discloses a capping machine. The capping machine comprises a bottle cap storage mechanism and a vibration hopper. An automatic feeding mechanism is arranged between the bottle cap storage mechanism and the vibration hopper. The automatic feeding mechanism comprises a conveying belt, a driving shaft and a driven shaft, the conveying belt is arranged on the driving shaft and the driven shaft in a sleeving mode, a driving motor is connected to the driving shaft, one end of the conveying belt is connected with the bottle cap storage mechanism, the other end of the conveying belt is connected with the vibration hopper, stopping blocks are arranged on the conveying belt at intervals, a cap number detecting device is arranged in the vibration hopper, and a monitoring device is connected outside the driving motor and the cap number detecting device. According to the capping machine, the automatic feeding mechanism is arranged between the bottle cap storage mechanism and the vibration ...

Preforming traction mechanism of unit strand imitating main cable linearity of suspension bridge

The invention discloses a preforming traction mechanism of a unit strand imitating main cable linearity of a suspension bridge in the technical field of bridge manufacturing. A side railroad shoe, a middle railroad shoe and a sleeve are fixedly connected with a pedestal; one end of a lifting screw is connected with the sleeve, while the other end is connected with a track supporting board; the track supporting board is arranged on the bottom of a track, the track consists of a plurality of sections, the component sections are hinged, and hinge positions are connected with the middle railroad shoe; two sides of the track are connected with the side railroad shoe respectively; a plurality of fixtures are evenly distributed on a chain, and are used for clamping a steel wire strand to be manufactured; and the chain bypasses chain wheels at two ends, and the chain wheels are arranged on the pedestal. The preforming traction mechanism realizes strand traction in the process of manufacturingthe ...

Ceaseless grease injection grease gun

Provided is a ceaseless grease injection grease gun. A grease injection cylinder body is installed at the upper portion of a grease storage cylinder. A grease injection pipe is installed on the grease injection cylinder body. A grease push piston is arranged in the grease storage cylinder and supported by a spring. A gun cylinder seal ring is arranged in an annular groove in the grease push piston. A left inlet grease discharge cavity, a right inlet grease discharge cavity and a valve ball cavity are formed in the grease injection cylinder body. A left piston is placed in the left inlet grease discharge cavity. A right piston is placed in the right inlet grease discharge cavity. A left valve port and a right valve port are formed in the grease injection cylinder body. A switch valve ball is placed in the valve ball cavity. The left piston and the right piston are connected together through a linkage plate so that linkage can be achieved. A left grease inlet hole and a right grease inlet ...

Nickel-iron layered double hydroxide/iron oxide composite material and preparation method thereof

The invention discloses a nickel-iron layered double hydroxide/iron oxide composite material and a preparation method thereof. The preparation method comprises the following main preparation steps: respectively preparing a trivalent iron salt solution and a triethanolamine solution; dropwise adding a triethanolamine solution into the ferric salt solution to obtain a clear and stable complex solution of ferric ions and triethanolamine, and then carrying out microwave hydrothermal treatment on the solution to obtain an iron oxide precursor dispersion liquid; preparing a mixed solution of nickel salt and triethanolamine, then adding the mixed solution into the iron oxide precursor dispersion liquid, and performing ultrasonic treatment to uniformly mix the mixed solution with the iron oxide precursor dispersion liquid; and transferring the mixture to a microwave hydrothermal reaction bottle, carrying out microwave hydrothermal treatment, centrifugally washing a precipitation product by using ...

Method for diffusion welding titanium alloy and copper alloy using niobium central layer

The invention relates to a method for welding titanium alloy and copper alloy. A method for diffusion-welding titanium alloy and copper alloy by using niobium intermediate layer is characterized in that the method comprises the following steps: (1) selecting niobium foil or powder as the intermediate layer for connecting a titanium alloy sheet and a copper alloy sheet, and cleaning the surfaces to be welded of the titanium alloy sheet and the copper alloy sheet; (2) arranging the niobium intermediate layer between the titanium alloy sheet and the copper alloy sheet, putting the whole into a graphite mold, transferring the graphite mold into a vacuum welding furnace, and applying a pre-pressure of 0.5 to 2 MPa to compress the mold; and (3) vacuuming the vacuum welding furnace, heating whenthe vacuum degree is larger than 5*10<-3> Pa with a speed of 2 to 10 DEG C/min to 700 to 850 DEG C, keeping the temperature for 30 to 60 min, applying an axial pressure of 5 to 10 MPa before keeping the ...

Combined accumulator

Bag outlet device of soft infusion bag production line and soft infusion bag production line

The invention discloses a bag outlet device of a soft infusion bag production line. A conveying device is fixedly installed on a rack and comprises a sliding base device moving in the horizontal direction under the driving of a driving device, a vertical moving device installed on the sliding base device and a bag outlet clamping assembly. The bag outlet clamping assembly comprises a clamping air cylinder installed at the moving end of the vertical moving device and a clamp installed on a piston rod of the clamping air cylinder, and a heating pipe is arranged in the clamping end of the clamp. In the bag outlet clamping process, the clamp heated by the heating pipe makes connecting pipes and the press-fitting faces of opening covers fused and welded together, the output is adjusted by the vertical moving device according to different specifications of soft infusion bags, and thus it is guaranteed that different specifications of soft infusion bags can be placed on a conveying belt orderly ...

Intelligent horizontal cable releasing method

Sealing device for soft bag infusion production line and soft bag infusion production line

The invention discloses a sealing device for a soft bag infusion production line. The sealing device comprises cover-taking and sealing caps, left rotary arms and right rotary arms, wherein the left rotary arms and the right rotary arms are fixedly connected with the cover-taking and sealing caps by pin shafts and composite bearings; the top of each of the left rotary arms and the right rotary arms is in an inverted trapezoid shape; small supporting shafts and composite idler wheels, which can move up and down along outer side arms of the left rotary arms and the right rotary arms, are arranged at the tops of the left rotary arms and the right rotary arms; a compressed spring is mounted on each top inverted trapezoid structure and between each left rotary arm and the corresponding right rotary arm. The invention further provides the soft bag infusion production line which is provided with the sealing device and can be used for realizing the requirements of simultaneously carrying out cover ...

Preparation method of boron carbide particle enhanced aluminum-based composite material

The invention relates to the technical fields of aluminum-based composite materials and preparation thereof, in particular to a boron carbide particle enhanced aluminum-based composite material and a preparation method thereof. According to the composite material, aluminum alloy is used as a matrix; the mass percentage of boron carbide used as a wild phase is 2.5 to 30%; the boron carbide particles are distributed in the matrix uniformly. The specific preparation method comprises the following steps: mixing boron carbide powder and aluminum alloy powder; performing surface activation, plasma activated sintering and heat treatment to prepare a sintering test sample close to full density. The aluminum-based composite material prepared by the method has low sintering temperature, high density, small crystal particles and an excellent mechanical property, is simple to operate and high in controllability, and is a lightweight high-performance aluminum-based composite material.

Leak detection equipment

The utility model discloses a leak detection equipment of soft packaging leak hunting, including frame and pressurized equipment, pressurized equipment be sustainable cylinderpiston subassembly of exerting pressure to soft packaging, the stiff end and the frame fixed connection of cylinderpiston subassembly, and the fixed testing platform who places the soft packaging that treats the detection that is provided with still in the frame, the cylinderpiston subassembly is connected with the manometer that is used for detecting the cylinder pressure. Adopt the pressurization of cylinderpiston subassembly, because cylinder components's self have a characteristic that keeps pressure, so it can carry out pressure output of lasting, have detection that the pressure detection of certain time span can be more thorough to the wrapping bag and go out the packing and whether have gas leakage, and the manometer of adopt connecting detects out cylinder pressure variation, borrow this to demonstrate by ...

Device is supported temporarily to pond culture fish

The utility model particularly relates to a device is supported temporarily to pond culture fish, the purpose reduces to catch the in -process and to the damages of fish, realize simultaneously that fish that only meet the requirements to the stature go on supporting temporarily, improves the fish quality, reduces the time of supporting the aftertreatment to fish temporarily. It includes the box with a net to support the device temporarily, the box with a net includes uncovered formula etting, uncovered edge in etting upper portion and frame connection, skeleton sub -unit connection keg float, the side upper portion of etting sets up the path connection mouth, the path connection mouth is connected with interface channel one end, the interface channel other end with lift net bottom portion and be connected, etting side sets up the mesh size that flee window and the space size of window of fleing are greater than the etting. Temporarily foster device erects in breed aquatics pond, can save ...

Preparation method of metal powder non-water-based casting slurry

The invention relates to a non-water based pulp for tape casting and a preparing method thereof. The metal powder non-water based pulp for tape casting is characterized in that the metal powder non-water based pulp for tape casting is prepared from raw materials such as metal powder, a dispersant Hypermer KD-1, polyvinyl-butyral, a plasticizer and a solvent; and the raw materials in percentage bymass are 40 to 75 percent of the metal powder, 0.4 to 2 percent of the dispersant HYPERMER KD-1, 1 to 4 percent of the polyvinyl-butyral, 1 to 5 percent of the plasticizer and 14 to 57.5 percent of the solvent, wherein the plasticizer is one of the following two: (1) polymethylmethacrylate, and (2) a mixture of polyethylene glycol and glycerin, and the mass ratio of the polyethylene glycol to theglycerin is 1:1; and the solvent is one of the following two: (1) butanone, and (2) a mixture of absolute ethyl alcohol and the butanone, and the mass ratio of the absolute ethyl alcohol to the butanone ...

Submersible type pond bottom changing machine

The invention discloses a submersible type pond bottom changing machine. The submersible type pond bottom changing machine comprises a machine body, wheels, drive motors, a transmission device, an in-situ bottom mud spraying device and a bacterium solution spaying device; the wheels, drive motors and transmission device are used for driving the machine body to run under water; the in-situ bottom mud spraying device comprises a sludge suction hole, a filter box, a bottom mud spraying pump, a bottom mud conveying pipe and a bottom mud spraying head; the bacterium solution spraying device comprises a bacterium solution storage box, a bacterium solution spraying pump, a bacterium solution conveying pipe and a bacterium solution spraying head. The bottom mud with organic substance enters the filter box through the sludge suction hole to filter, the filtered bottom mud arrives at the bottom mud spraying head through the bottom mud spraying pump and the bottom mud conveying pipe and is sprayed ...

Casting method for preparing Mg-Cu system density gradient material

The invention relates to a casting method for preparing Mg-Cu system density gradient material, which comprises the steps of: preparation of metal power non-water-based casting slurry, casting molding, cutting, lamination, and the binder removal and hot pressed sintering of green bodies, wherein the slurry comprises the following components in percentage by mass: 40 to 70 percent of metal powder, 0.6 to 1.2 percent of dispersing agent, 2.5 to 3.5 percent of binder, 1.6 to 3.5 percent of plasticizer and the balance of butanone solvent; and the viscosity of the slurry is between 1 and 10,000 mPa.s, the metal powder is magnesium powder or copper powder, or mixed powder of the magnesium powder and the copper powder in any proportion, and the grain size of the powder is less than or equal to 300 meshes. The method has the characteristics that the method has simple process and low cost; the most importantly, the single-layer thickness of the prepared Mg-Cu system gradient material can reach micron-size ...

Asynchronous clock data transmission device and method

The device includes following units: counting unit for global clock (CUGC) in use for indicating serial number of the input data in fast source clock domain; being connected to CUGC, multichannel allocation and control unit (MACU) in use for sampling the input data circularly based on serial number of data; being connected to MACU, the synchronous control unit (SCU) in use for synchronizing the sampled data with target clock domain; being connected to SCU, the word assembling unit in use for assembling the synchronized data by SCU into the assembled data. The method includes steps: indicatingserial number of the input data in fast source clock domain; based on serial number of the data to sample the input data circularly through multiple data channels; synchronizing the sampled data withtarget clock domain; assembling the synchronized data into the assembled data and outputting the data. Features are: raising transmission efficiency, and simple control method.

Novel method for anchoring hot-cast anchor

The invention relates to a method in the technical filed of mechanical casting, in particular to a novel method for anchoring a hot-cast anchor. The method mainly comprises the following steps: (1) producing a wire dividing plate according to the number of steel wires and the size of an anchor cup; (2) passing the steel wires through the wire dividing plate for dividing wires in the process of making the anchor; (3) fixing the wire dividing plate and the anchor cup, and controlling the perpendicularity of an anchor rope; (4) casting a zinc-copper alloy; and (5) performing back punching on the alloy after the alloy is cooled. The method introduces the wire dividing plate in the hot-cast anchor to improve the casting performance of the hot-cast anchor and the anchoring performance of an inhaul cable of the hot-cast anchor.

Preparation method of stable W-Cu metal tape-casting slurry with high solid phase content

The invention relates to a preparation method of metal tape-casting slurry. The preparation method of the stable W-Cu metal tape-casting slurry with high solid phase content is characterized by comprising the following steps: 1) selecting raw materials: selecting the following raw materials by weight percent: 70-80% of metal powder, 11-25% of solvent, 0.8-1.2% of dispersant, 1.0-2.0% of first binding agent, 0.6-1.4% of first plasticizer, 2.0-4.0% of second binding agent and 0.6-1.4% of second plasticizer; 2) carrying out primary ball milling: mixing the solvent with the dispersant, adding the metal powder, then stirring, and carrying out the ball milling; 3) carrying out secondary ball milling: adding the first binding agent and the first plasticizer, and carrying out the ball milling; 4) carrying out tertiary ball milling: adding the second binding agent and the second plasticizer, and carrying out the ball milling; and 5) removing bubbles and obtaining the W-Cu metal tape-casting slurry ...

Low-temperature preparation method of high-performance tungsten copper composite material

The invention provides a low-temperature preparation method of a high-performance tungsten copper composite material. The method is as follows: copper coated tungsten composite powder and copper powder with corresponding masses are weighed according to the tungsten copper component ratios of the tungsten copper composite material required to be prepared for mixing to obtain mixed powder, or copper coated tungsten powder with corresponding components is directly used as sintering raw materials; the mixed powder or the copper coated tungsten composite powder with corresponding components are loaded into a mold for implementing low-temperature thermal pressing and sintering to obtain the high-performance tungsten copper composite material. The method is simple and reliable in technique, short in flow, low in production cost and high in efficiency; the prepared tungsten copper composite material has the advantages of wide distribution of tungsten content, high compactness, possession of copper ...

Device and method for winding and unwinding a parallel wire strand horizontally

A device and method for horizontally winding and unwinding a parallel wire strand, the device includes guiding device, rotating platform, rail flat wagon, strand winding and unwinding device, tray, several transmitters and programmable controllers, according to different mounted characteristics of winding and unwinding wire strand, the strand winding and unwinding device is divided into two structure forms, that are first inner module and second inner module; first inner module is composed of supporting plate and top drawbar, second inner module is composed of supporting plate and top drawbar, in addition knockout pin of hydraulic jack, can commendably solve “Hula-circles” problem.

Preparation method of carbon-doped reinforced W-Cu composite material

The invention relates to a preparation method of a carbon-doped reinforced W-Cu composite material, namely a preparation method of the carbon-doped reinforced W-Cu composite material based on an organic substance. The preparation method comprises the following steps of: coating the surface of W powder with an organic additive layer by utilizing a carbon doping process of the organic substance with adhesion property, and carrying out high-temperature treatment on the coated W powder into an inert atmosphere to pyrolyze organic additives so as to obtain C@W composite powder; then preparing Cu@C@W composite powder through a coating method by taking the C@W composite powder as a raw material; then carrying out cold isostatic pressing on the Cu@C@W composite powder at 100-500 MPa to obtain a blank; and finally sintering the blank into a vacuum hot-pressing furnace to obtain the carbon-doped reinforced W-Cu composite material. The preparation method disclosed by the invention can obtain the carbon-doped ...

Low-cost tilapia breeding method combining feed and bio floc technology

The invention discloses a low-cost tilapia breeding method combining the feed and the bio floc technology and belongs to the field of tilapia breeding methods. The method includes 1, feeding low nitrogen and high carbon feed until the satiating purpose is achieved; 2, regularly adding bio floc into a breeding pond to obtain products so as to adjust the water of the breeding pond until C/N >/= 10; 3, turning on an aerator facility in the breeding process, and guaranteeing the ratio of dissolved oxygen being larger than 3mg / L. The amount of the bio floc in the breeding water is increased in two manners, the feed protein recycling is prompted, the feed coefficient is decreased, the breeding cost is reduced, and breeding benefits are increased.

Novel wear-resistant shipping bucket lifting appliance

The invention discloses a novel wear-resistant ship loading bucket lifting appliance which is mainly composed of a lifting appliance frame, a connecting steel cable and a lifting chain, the tops of the two sides of the lifting appliance frame are fixedly connected with fixing seats, the tops of the fixing seats are connected with the connecting steel cable, and the tops of the connecting steel cable are connected with butt joint buckles. Meanwhile, a hoisting chain is mounted on the outer side of the butt joint buckle; comprising a limiting block which is movably nested in the butt joint buckle, a connecting block is fixedly connected to the bottom of the limiting block, a telescopic spring is connected to the bottom of the connecting block, and a pull rod is installed in the telescopic spring; and the connecting frame is installed at the bottom of the lifting appliance frame, and the outer side of the connecting frame is fixedly connected with a connecting plate. According to the novel ...

Preparation method of polymer-based light high-strength foam material

The invention discloses a preparation method of a polymer-based light high-strength foam material. The material is prepared by taking expended microspheres as a base body, silane coupling agent modified CNTs a nanometer reinforcing phase and epoxy resin as an interfacial binding agent. The method comprises the following steps: preparation of a silane coupling agent modified CNTs solution; preparation of a solution of CNTs and epoxy resin; preparation of a sol of epoxy resin and expended microspheres; and heating and curing and forming and preparation of the polymer-based light high-strength foam material. The preparation method disclosed by the invention is simple and controllable, the problem of agglomeration of CNTs is effectively solved by using the silane coupling agent, and CNTs is uniformly dispersed in the microsphere base body so as to improve the enhancing effect of the CNTs. By selecting the epoxy resin, the interface bonding force and the mechanical property among the microspheres ...

Chlobipram mesylate crystal form and preparation method thereof

The invention relates to a clobipram mesylate crystal form and a preparation method thereof, clobipram is used as a novel PDE4 inhibitor, at the early stage of drug research and development, preparation of a clobipram compound into a salt is a very necessary stage, and physicochemical properties, such as solubility, crystallinity, hygroscopicity, melting point and solid stability, of the clobipram compound can be improved. In view of the purpose, the clobipram mesylate crystal form is successfully synthesized through a drug salt sieve experiment, and a choice is provided for final salification of drugs.

Preparation method of RGO/Cu nano composite powder

The invention provides a preparation method of RGO/Cu (reduced graphene oxide/copper) nano composite powder. The preparation method comprises the following concrete steps: reducing graphene oxide, and uniformly loading copper onto graphene by sensitizing and activating methods to obtain the nano composite powder with copper uniformly loaded on a graphene sheet layer. The preparation method comprises the steps of sensitizing and activating graphene, preparing an intermediate product of the RGO/Cu nano composite powder, and reducing the RGO/Cu nano composite powder by H2. The method provided by the invention is a brand-new method for preparing the nano composite powder with copper uniformly loaded on graphene sheets, and has the advantages of high efficiency, quickness, simple and convenient operation, low cost, no expensive instrument, energy conservation and the like.

Preforming traction mechanism of unit strand imitating main cable linearity of suspension bridge

The invention discloses a preforming traction mechanism of a unit strand imitating main cable linearity of a suspension bridge in the technical field of bridge manufacturing. A side railroad shoe, a middle railroad shoe and a sleeve are fixedly connected with a pedestal; one end of a lifting screw is connected with the sleeve, while the other end is connected with a track supporting board; the track supporting board is arranged on the bottom of a track, the track consists of a plurality of sections, the component sections are hinged, and hinge positions are connected with the middle railroad shoe; two sides of the track are connected with the side railroad shoe respectively; a plurality of fixtures are evenly distributed on a chain, and are used for clamping a steel wire strand to be manufactured; and the chain bypasses chain wheels at two ends, and the chain wheels are arranged on the pedestal. The preforming traction mechanism realizes strand traction in the process of manufacturing the ...

Method for controlling manufacturing accuracy of unit strand imitating main cable linearity of suspension bridge

The invention relates to a method for controlling the manufacturing accuracy of a unit strand imitating main cable linearity of a suspension bridge, and belongs to the technical field of bridge construction engineering. An outmost steel wire selected from each layer of high tensile steel wires of a novel unit strand imitating main cable linearity of the suspension bridge is taken as a steel wire with standard length to control the length of each layer of the steel wires accurately. In the control method, the relative length of each steel wire in a steel wire strand can be different to ensure that each steel wire is stressed evenly after load is applied on the unit strand; and the method is suitable for the requirement of bending main cables in a bridge or a building structure.

Magnesium alloy and aluminum alloy interlayer diffusion welding method

The invention relates to a magnesium alloy and aluminum alloy interlayer diffusion welding method. The method mainly comprises the following steps of: (1) machining a welding metal base, namely processing, abrading, polishing and ultrasonically washing magnesium alloy and aluminum alloy; (2) depositing Cu films on the magnesium alloy and the aluminum alloy by controlling process parameters by using magnetron sputtering coating equipment; and (3) assembling the coated metal base by using a die, placing the die into a vacuum hot-pressing furnace, and controlling welding temperature, heat-preserving time and pressure to obtain a welding joint. The method has the advantages that: (1) the Cu film can protect the surface of the welding metal base better and reduce generation of inert metal oxide layers; (2) the Cu element improves phase constitution and the microstructure of a welding interface and inhibits generation of brittle intermetallic compounds in the midlayer of the welding joint; and ...

Polymer based wave absorbing foam material and preparation method thereof

The invention relates to a polymer based wave absorbing foam material and a preparation method thereof. By taking a CNTs/PMMA nano composite material as an example, the unique micro structure and excellent wave absorption of the wave absorbing foam material are proved according to the experiment. The preparation method comprises the following steps: firstly performing roll-to-roll hot rolling on the CNTs/PMMA nano composite material to obtain a single-layer sheet; secondly, folding the single-layer sheet and performing roll-to-roll hot-rolling on the single-layer sheet to obtain a stacked sheet; thirdly, repeatedly performing roll-to-roll hot-rolling on the stacked sheet obtained in the last step by many times under same conditions to obtain multiple layers of stacked sheets; and finally utilizing a supercritical fluid technology to foam. The wave absorbing foam material provided by the invention has a continuous orientated multi-layer arranged micro-pore structure, has the advantagesof ...

Oxygenation system applied to feeding zone of aquaculture pond

The invention provides an oxygenation system applied to a feeding zone of an aquaculture pond and belongs to the field of oxygenation systems. The oxygenation system applied to the feeding zone of the aquaculture pond comprises an oxygenation device and an automatic oxygen dissolving controller connected with the oxygenation device. The oxygenation device is arranged on the feeding zone of the pond, and the automatic oxygen dissolving controller is respectively provided with the feeding zone located on the pond and an oxygenation dissolving testing probe of a non-feeding zone. The oxygenation system has the advantages that by the adoption of the structure, when the difference value of dissolved oxygen of the feeding zone and the non-feeding zone is larger than or equal to 1mg/L or the dissolved oxygen value of the feeding zone is smaller than 3mg/L, the oxygenation device is automatically switched on; when the dissolved oxygen value is smaller than or equal to 1mg/L or the dissolved oxygen ...

Humidity infinitely variable control air discharge fan

The utility model relates to a humidity infinitely variable control air discharge fan, open / power failure way, single -chip control circuit, humidity sensing circuit, live wire wiring end ACL, zeroline wiring terminal ACN including power generating circuit, air discharge fan, power generating circuit conversion formations + 3.3V power output end is held with + 12V power output, humidity sensingcircuit includes singlechip U6, electric capacity C4, resistance R10, single -chip control circuit includes charactron U2, singlechip U3, singlechip U4, singlechip U5, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, triode Q1, triode U2, zener diode D3, the gas fan opens / and the power failure way includes airdischarge fan MG1, relay K1. The utility model has the advantages of convenient to use, can open or close according to indoor humidity environment is automatic, the security performance be good, theuser ...

Chlobipram sulfate crystal form and preparation method thereof

The invention relates to a clobipram sulfate crystal form and a preparation method thereof, clobipram is used as a novel PDE4 inhibitor, at the early stage of drug research and development, preparation of a clobipram compound into a salt is a very necessary stage, and physicochemical properties, such as solubility, crystallinity, hygroscopicity, melting point and solid stability, of the clobipram compound can be improved. In view of the purpose, the clobipram sulfate crystal form is successfully synthesized through a drug salt sieve experiment, compared with clobipram, after the clobipram sulfate crystal form is salified, the crystallinity change is not large, the polycrystal phenomenon of salt is not found, the melting point is slightly increased, moisture absorption is not prone to occurring, and the solubility is not obviously changed; and a choice is provided for final salification of the medicine.

High -efficient ecological culture in net cage system

The utility model belongs to aquaculture equips the field, and concretely relates to is fit for the high -efficient ecological culture in net cage system in the use of little ope of waters. This system includes big box with a net, and the nets incasement sets up little box with a net, the district is planted for the plant in region between big box with a net and the little box with a net, and the culture in net cage system is the supporting oxygenation system who oxygenates in the oriented box with a net that arranges still. Little box with a net upper portion sets up encloses the fender, encloses the fender and comprises baffle or mesh grid, encloses the portion of blocking and stretches out the at least 4cm of the surface of water, enclose region in keeping off for the district of feeding. The utility model discloses a system has superstrong oneself's purification, self -control ability. The cultured output reaches 120kgm2, be ordinary culture in net cage 3 -5 doubly. And can carry out ...

Method for preparing compact W-Cu composite material at low temperature

The invention relates to a method for preparing a compact W-Cu composite material at low temperature, comprising the following steps: carrying out three-dimensional mixing on W power, Cu power and Zn power, wherein the volume fraction ratio of W power to Cu power is (10.0-75.0%): (25.0-90.0%) by volume, and the Zn power is 0.5-2.0% of the total mass of the W power and the Cu power and serves as additive; putting the mixture in a vacuum hot pressing furnace; and carrying out hot pressing sintering on the mixture according to the specified vacuum hot pressing sintering process to obtain the compact W-Cu composite material, wherein the vacuum degree is 1*10<-3>-1*10<-4>Pa, the sintering temperature is 700-900 DEG C, the heat preservation time is 1-4 hours and the applied pressure is 80-200 Mpa in the specified vacuum hot pressing sintering process. The mixture can be sintered at low temperature to obtain the high-compactness W-Cu composite material, and the method has the obvious advantages ...

Method for preparing compact W-Cu composite material at low temperature

The invention relates to a method for preparing a compact W-Cu composite material at low temperature, comprising the following steps: carrying out three-dimensional mixing on W power, Cu power and Zn power, wherein the volume fraction ratio of W power to Cu power is (10.0-75.0%): (25.0-90.0%) by volume, and the Zn power is 0.5-2.0% of the total mass of the W power and the Cu power and serves as additive; putting the mixture in a vacuum hot pressing furnace; and carrying out hot pressing sintering on the mixture according to the specified vacuum hot pressing sintering process to obtain the compact W-Cu composite material, wherein the vacuum degree is 1*10<-3>-1*10<-4>Pa, the sintering temperature is 700-900 DEG C, the heat preservation time is 1-4 hours and the applied pressure is 80-200 Mpa in the specified vacuum hot pressing sintering process. The mixture can be sintered at low temperature to obtain the high-compactness W-Cu composite material, and the method has the obvious advantages ...

Filling metering method for new soft large infusion bag

The present invention discloses a kind of novel filling and metering method for large soft infusion bag. The filling and metering process includes inserting the filling head into the bag mouth, blowing, vacuum pumping, and filling. The process can reduce the height difference between the high position tank and the filling head and lower the cost of the filling system. The present invention is suitable for various large soft infusion bag of different sizes.

Casting method for preparing Mg-Cu system density gradient material

The invention relates to a casting method for preparing Mg-Cu system density gradient material, which comprises the steps of: preparation of metal power non-water-based casting slurry, casting molding, cutting, lamination, and the binder removal and hot pressed sintering of green bodies, wherein the slurry comprises the following components in percentage by mass: 40 to 70 percent of metal powder,0.6 to 1.2 percent of dispersing agent, 2.5 to 3.5 percent of binder, 1.6 to 3.5 percent of plasticizer and the balance of butanone solvent; and the viscosity of the slurry is between 1 and 10,000 mPa.s, the metal powder is magnesium powder or copper powder, or mixed powder of the magnesium powder and the copper powder in any proportion, and the grain size of the powder is less than or equal to 300 meshes. The method has the characteristics that the method has simple process and low cost; the most importantly, the single-layer thickness of the prepared Mg-Cu system gradient material can reachmicron-size ...

Asynchronous clock data transmission device and method

The device includes following units: counting unit for global clock (CUGC) in use for indicating serial number of the input data in fast source clock domain; being connected to CUGC, multichannel allocation and control unit (MACU) in use for sampling the input data circularly based on serial number of data; being connected to MACU, the synchronous control unit (SCU) in use for synchronizing the sampled data with target clock domain; being connected to SCU, the word assembling unit in use for assembling the synchronized data by SCU into the assembled data. The method includes steps: indicating serial number of the input data in fast source clock domain; based on serial number of the data to sample the input data circularly through multiple data channels; synchronizing the sampled data with target clock domain; assembling the synchronized data into the assembled data and outputting the data. Features are: raising transmission efficiency, and simple control method.

Diffusion welding method of tungsten alloy and tantalum alloy at low temperature

The invention relates to a diffusion welding method of a tungsten alloy and a tantalum alloy at a low temperature, comprising the steps of: (1) workpiece surface cleaning: machining the tungsten alloy and the tantalum alloy to a required size and eliminating oxide layers of the tungsten alloy and the tantalum alloy and an oxide layer of an intermediate layer-nickel foil face to be welded; (2) workpiece assembling: placing the intermediate layer-nickel foil between the tungsten alloy and tantalum alloy to construct a welded workpiece; and (3) vacuum diffusion welding: putting the welded workpiece into a vacuum diffusion welding furnace, heating, preserving the heat, when the heat preserving starts, applying an axial pressure to the welded workpiece, and when the heat preserving ends, unloading the pressure and cooling along with the furnace. The diffusion welding method of the tungsten alloy and the tantalum alloy at the low temperature can overcome the problem that high quality diffusion ...

Human response bathroom light

The utility model relates to a human response bathroom light, including + 24V power generating circuit, singlechip positive +5V generating circuit, LED lighting lamp circuit, singlechip positive +5V generating circuit's power input end is connected with + 24V power generating circuit's output, LED lighting lamp circuit's positive input terminal is connected with + 24V power generating circuit's output, its characteristics lie in still including single -chip control circuit, and this single -chip control circuit includes singlechip U2, human sensor, resistance R53, electric capacity C24, adjustable resistance CDS5539, resistance R54, triode Q1, triode Q2, resistance R2, resistance R4, resistance R14, resistance R15, field effect transistor Q3, 12V power output end. The utility model has theadvantages of convenient to use, can lighting models and night change humanized design between the lighting models in the daytime according to the luminance condition of room light.

MAC uplink scheduling method and apparatus used for GPON OLT

The invention provides a media access control (MAC) uplink scheduling method for a gigabit-capable passive optical network optical line terminal (GPON OLT) and a device thereof. The method comprises the following steps: writing acquired descriptors on a data packet which is stored into a cache into queues corresponding to a destination port to which the data packet is to be uplink forwarded; polling each queue and resolving to acquire the meanings of the descriptors acquired by polling; reading the data packet from the cache according to the meanings; and assembling the data packet into a frame, and inputting to an outlet queue of the destination port. The method and the device provide high-bandwidth and high-efficiency performance with good flexibility for GPON MAC uplink services in terms of port scheduling function.

Preparation method of high heat-conducting diamond/copper-based composite material

The invention relates to a preparation method of a high heat-conducting diamond/copper-based composite material which consists of matrix copper, diamond powder and a molybdenum coating, wherein the volume fraction of molybdenum is 1-2%, the balance of diamond particles and copper. In diamond and copper, the volume fraction of the diamond powder is 15-50%. The preparation method provided by the invention can solve the problem that in methods of infiltration, powder metallurgy and the like, diamond powder and copper are non-wetting to lead to sintering densification. The preparation method comprises the following steps: I, plating molybdenum on the surfaces of the diamond particles by adopting a magnetron sputtering method to prepare molybdenum-coated diamond powder; II, plating copper on the surface of the molybdenum-coated diamond powder by a chemical plating method to prepare copper and molybdenum-coated diamond powder; III, mixing the composite powder obtained in step II and pure copper ...

Novel fresh water fish egg hatching device

The utility model relates to a fresh water fish egg hatching device, purpose are the novel fresh water fish egg hatching device who provides a convenient to use. Fresh water fish egg hatching device includes the hatching bucket, and the hatching bucket is formed a complete set and is had inlet tube, outlet pipe, hatching barrel head portion intermediate position sets up support piece, the last intervalve that sets up of support piece, the inlet tube is intake in hatching the bucket by the intervalve lower extreme in inserting the intervalve, the outlet pipe is installed on hatching bucket lateral wall, and the inner nozzle position of outlet pipe is less than the upper end nozzle position of intervalve. Support piece does benefit to and produces even splash, supplyes more polyoxy gas, certain negative pressure is convenient for produce by the intervalve, attracts the air, does benefit to and oxygenates to the water, can also avoid the too big impact roe of rivers. Avoid growing seedlings ...

Method for manufacturing high strength and large specification wire rope sling

The invention relates to a manufacturing method in the technical field of bridge engineering, in particular to a method for manufacturing a high strength and large specification wire rope sling. The method comprises the following steps: (1) checking raw materials, and ensuring that a wire rope has no broken wire, no rust and the like; (2) according to the length of a workshop tensioning groove, performing optimal length matching on a long cable and a short cable to be matched into a certain length; (3) manufacturing a temporary anchorage device to ensure performing pretension; (4) performing pretension to control the inelastic deformation of the wire rope; (5) resisting corrosion; (6) cutting off a mark; (7) performing anchor manufacturing on the wire rope, and passing the wire rope into a buffer before anchor manufacturing; (8) casting an ingot by using a special conical ingot mould, and preheating the mould; and (9) performing tensioning retest on the sling according to a length matching ...

Suspension cable simulating bridge main cable linear unit beam strand

The invention relates to a simulating suspension cable bridge main cable linear unit beam strand (or cable strand) which is mainly used for unit beam strand of a suspension bridge, a self-anchored suspension bridge, a pipeline overpass bridge and other long-span structures. The simulating suspension cable bridge main cable linear unit beam strand mainly comprises steel wires and fiber reinforced polyester strip or thin steel wires which are wrapped outside the beam strand steel wires; the two ends of the beam strand are connected with anchors; the shape of the simulating suspension cable bridge main cable linear unit beam strand is made by simulating the linearity of the practical suspension cable bridge main cable completely; the unit beam strands from the inner layers to the outer layers at the bend of main cable linearity have different lengths; and the length of each steel wire forming the unit strands from the inner layers to the outer layers at the bend of main cable linearity is ...

Method for preparing microsphere composite foam material

The invention belonging to a foam material field relates to a preparation method for micro-sphere compound foam materials, which is characterized in comprising the following steps: 1) steps of batch mixing, bubble exhausting and molding: according to that a hollow micro-sphere is epoxide resin with weight of 0.1 to 6 wt%, firming agent is the epoxide resin with weight of 10-15wt%, plasticiser is the epoxide resin with weight of 0-20wt% and the diluent is the epoxide resin with weight of 0-20wt%, selection; stirring and mixing to get mixed materials, then a rolling and bubble exhausting treatment is carried out to the mixed materials by a rolling machine and then resin slurry mixed evenly is obtained, then the resin slurry is poured into a module to get molded; 2) earlier low temperature solidification step: the module containing the resin slurry is put into a container with low temperature and vacuum condition for solidification for 5 to 10 hours to get high viscosity resin slurry; 3)later ...

Hardware device and method for assisting in processing dynamic bandwidth allocation algorithm

The invention discloses a hardware device and a method for assisting in processing a dynamic bandwidth allocation (DBA) algorithm. The hardware device comprises a hardware logic module, a register interface control module, a synchronous dynamic RAM controller module, a FLASH controller module, an interrupt processor module, a universal asynchronous receiver/transmitter controller module, and a master-slave communication module, a master-slave communication interface module, a PowerPc CPU module, a processor bus module, a processor bus-to-on-chip- peripheral-bus bridge module and an on chip peripheral bus module which are orderly connected, wherein the PowerPc CPU module is used for processing and controlling data acquired by the hardware logic module, is connected with a master CPU interface in the hardware logic module through the master-slave communication module to finish communications between an embedded CPU and a master CPU, and controls and configures a register in the hardwarelogic ...

MAC uplink scheduling method and apparatus used for GPON OLT

The invention provides a media access control (MAC) uplink scheduling method for a gigabit-capable passive optical network optical line terminal (GPON OLT) and a device thereof. The method comprises the following steps: writing acquired descriptors on a data packet which is stored into a cache into queues corresponding to a destination port to which the data packet is to be uplink forwarded; polling each queue and resolving to acquire the meanings of the descriptors acquired by polling; reading the data packet from the cache according to the meanings; and assembling the data packet into a frame, and inputting to an outlet queue of the destination port. The method and the device provide high-bandwidth and high-efficiency performance with good flexibility for GPON MAC uplink services in terms of port scheduling function.

Preparation for promoting phosphorous release of bottom sludge of aquaculture pond, and preparation method and application of preparation

The invention discloses a composite microbial preparation for promoting the phosphorous release of bottom sludge of an aquaculture pond, and a preparation method and a using method of the composite microbial preparation, and belongs to the field of microbial preparations. The composite microbial preparation consists of the following components in parts by weight: 30 to 60 parts of phosphate-solubilizing bacillus, 20 to 50 parts of phytase and 5 to 25 parts of sodium humate. Compared with the prior art, the composite microbial preparation, and the preparation method and the using method thereof have the beneficial effects that due to the use of the composite microbial preparation, deposited phosphorous of the bottom sludge of the aquaculture pond can be recycled and released for phytoplankton, the fertility of a water body can be improved, the problems of reutilization of the deposited phosphorous of the bottom sludge of the pond are solved, and meanwhile, the water quality and the sediment ...

Method for coiling or decoiling bunch of parallel steel wires

A method for coiling or decoiling the parallel steel wire bunch features that when coiled the parallel steel wire bunch is wound on a reel on a rotary table perpendicular to the rotary axle center, and when decoiled the wound parallel steel wire bunch is put on a rotary table perpendicular to the rotary axle center. Its advantage is that the parallel steel wire bunch is orderly coiled or decoiledas its dead weight is generated by said rotary table.

Wheel animalcule culture apparatus

The utility model relates to a biological bait field of cultivateing of aquaculture, the purpose provides a wheel animalcule culture apparatus, and the device can effectively improve cultivation system quality of water, reduces and cultivates cost, convenient operation. A wheel animalcule culture apparatus, is including cultivating the container. It sets up the cushion to cultivate the container bottom, the open structure that the cushion was made for inert material, connect an at least gas -supply pipe on cultivating the container, the gas stone that looses is connected to carminative end in cultivating the container to the gas -supply pipe. Organic waste such as the incomplete bait of chlorella, wheel animalcule metabolite and wheel animalcule corpse meeting deposit is on the cushion. Organic waste accumulates on the cushion to can not agitate and kick up and influence system quality of water along with the aquatic. Train the in -process the wheel animalcule, the cushion that can directly ...

Method for Horizontally Winding and Unwinding a Parallel Wire Strand

A method for horizontally winding and horizontally unwinding parallel steel wire strands for transport, storage or installation comprises the following steps: when performing the winding operation, a guiding frame () is mounted on the ground, a rotating platform is connected with a rotating shaft (), the leading end of the wire stranded is passed through the guiding rollers () and then is fixed on an inner module (), and the platform () is rotated around the shaft (); when performing the unwinding operation, the guiding frame () is mounted on the ground and one end of the winded stranded wire is pulled out from the guiding rollers (). 1. A method for horizontally winding and horizontally unwinding a parallel wire strand upon a base of a cable reel for transport , storage or installation , a parallel wire strand made up of a plurality of tightly adjacent vertically and horizontally arranged parallel wires , the strand including at least a leading end fitting securing the ends of the wires together , the method is characterized in that it comprises the steps of:(a) Performing the winding operation, the operation procedure is as follows:{'b': 1', '1', '11', '12', '13', '14', '15', '16', '17', '181', '182', '183', '19', '1', '12', '13', '1', '14', '15', '13', '16', '14', '16', '17', '181', '182', '17', '181', '182', '14', '183', '13', '181', '182', '182', '183', '21', '1', '2', '2', '21', '2', '22', '3', '22, 'img': {'@id': 'CUSTOM-CHARACTER-00005', '@he': '3.89mm', '@wi': '2.79mm', '@file': 'US20130248638A1-20130926-P00001.TIF', '@alt': 'custom-character', '@img-content': 'character', '@img-format': 'tif'}, 'Fix the guide frame () on the ground, the guide frame () is composed by the base (), support frame (), electric hoist (), fixed pulley (), steel wire rope (), lifting mechanism (), roller (), the pressure sensor (), speed encoder (), altimeter encoder () and limit roller (); Fix the base () on the ground and fix the support frame () and electric hoist () on the ...

DEVICE AND METHOD FOR WINDING AND UNWINDING A PARALLEL WIRE STRAND HORIZONTALLY

A device and method for horizontally winding and unwinding a parallel wire strand, the device includes guiding device, rotating platform, rail flat wagon, strand winding and unwinding device, tray, several transmitters and programmable controllers, according to different mounted characteristics of winding and unwinding wire strand, the strand winding and unwinding device is divided into two structure forms, that are first inner module and second inner module; first inner module is composed of supporting plate and top drawbar, second inner module is composed of supporting plate and top drawbar, in addition knockout pin of hydraulic jack, can commendably solve “Hula-circles” problem. 11102345111111121311114121612151316141719171617. A device for horizontally winding and unwinding wire strand , including: guiding device () of strand () , rotating platform () , rail flat wagon () , strand winding and unwinding device () , tray () , several transmitters and programmable controllers , said device is characterized comprising: said guide frame () which is constituted by base () and supporting frame () , electric wire hoist () fit on base () , fixed pulley () mounted at the top of the supporting frame () , includes crane () and lifting appliance () composed of the strand transfer control mechanism set in the crane , a wire rope () which connects from electric wire hoist () to the top surface of crane () bypass around fixed pulley () , wherein the said strand transfer control mechanism includes roller () and spacing wheel () , wherein there are three rollers () installed in the crane() , and arranged in “” character pattern , that is to say , the three connecting lines from each center of circle of three rollers () make up of a triangle;{'b': 2', '1', '21', '22', '21', '23', '22', '21', '22', '25, 'rotating platform () is fitted on the ground by the side of guiding device (), which includes the under-chassis, turning axle () fixed to under-chassis centre, platform () set on ...

Switch control circuit of Beidou electric power metering communication antenna

本实用新型公开了一种北斗电力计量通信天线的开关控制电路，它包括：北斗远程通信模块，北斗远程通信模块与北斗电力计量通信终端导线连接，北斗远程通信模块与自动开关控制模块导线连接；自动开关控制模块与天线导线连接；解决了现有技术在电力计量中采用的北斗电力计量通信终端与模块连接的天线在发射瞬间的功耗较大，过大的天线负载电流对电力计量终端存在影响和损坏等技术问题。