Stone waste gridding steel back frame waterproof closely-spliced outer wall structure

The invention discloses a stone waste gridding steel back frame waterproof closely-spliced outer wall structure which comprises a gridding steel back frame and modular stone plates. Outer side connecting pieces are arranged on the periphery of the grid steel back frame, and an inner connecting piece is arranged in the middle of the grid steel back frame. The number of the modular stone plates is multiple, each modular stone plate is a rectangular plate of A1 * A2, A1 and A2 are the side lengths of the two adjacent sides of the rectangular plate respectively, the modular stone plate with the smallest area is a square plate of A * A, and A1 and A2 are the multiple of A; the plurality of modular stone plates are mutually spliced and mounted on the grid steel back frame, the outer side connecting pieces are matched with the outer side edges of the modular stone plates located on the outer side, and the inner connecting pieces are matched with the adjacent edges of the adjacent modular stone ...

Discharge milling composite tool with discharge compensation gap

The invention discloses an automatic electrode gap compensation milling tool. The tool comprises a tool apron assembly, a discharging assembly and a gap compensation mechanism are arranged on the tool apron assembly, the discharging assembly is used for discharging to the surface of a workpiece, and when a gap between the discharging assembly and the surface of the workpiece is larger than or smaller than a discharge gap, the gap compensation mechanism drives the discharging assembly to move to the position where the gap between the discharging assembly and the workpiece surface is equal to the discharge gap. Through the gap compensation mechanism, the discharging assembly moves when the gap between the discharging assembly and the workpiece surface is larger than or smaller than the discharge gap and moves to the position where the gap between the discharging assembly and the workpiece surface is equal to the discharge gap, and the discharging efficiency of the discharging assembly is ...

Novel resin anchor rod capable of preventing anchor from falling off and construction method of novel resin anchor rod

The invention discloses a novel anti-dropping resin anchor rod and a construction method thereof, and relates to the technical field of mine support. One end of an anchor rod body of the resin anchor rod is a conical rod head, a steel nail for anchoring is arranged above the conical rod head, a plurality of anchoring devices are arranged in the middle of the anchor rod body in the length direction of the anchor rod body, the other end of the anchor rod body is sequentially sleeved with a rubber bag, a metal disc and a fastening nut, and the rubber bag is connected with a hydraulic device through a three-purpose valve. During construction, anchor rod drill holes matched with anchor rod bodies are drilled according to the designed hole distribution positions; hydraulic oil is injected into the rubber bag through the three-purpose valve by utilizing an existing hydraulic device until the designed pressure is reached, the resin anchoring agent is stuffed into the bottom of the drilled hole, ...

Device for testing anti-scouring capacity of dam face of tailing vegetation base material slope protection

The invention discloses a dam face anti-scouring capacity testing device for tailing vegetation base material slope protection. The dam face anti-scouring capacity testing device comprises a base frame, a slope surface system, a rainfall system, a water and soil collecting system and a data monitoring and processing system. The device can simulate rainfall conditions of different rainfall capacities, test the anti-scouring capability of the plant-growing substrate, monitor and collect data in real time, calculate the erosion rate of the substrate, draw a curve graph of rainfall time and scouring substance output, and evaluate the anti-scouring capability of the plant-growing substrate.

Filling roof-contacted construction method suitable for water-containing roof of underground phosphorite mountain

The invention discloses a filling roof-contacted construction method suitable for a water-containing roof of an underground phosphorite mountain, and relates to the technical field of filling mining methods. Firstly, drainage holes are drilled in top plate surrounding rock in advance before roof contact, and top plate water spraying is reduced; the last layer of ore body is blasted in a smooth blasting mode, so that a flat top surface can be formed; the stope is filled with high-concentration slurry, and a filling body water drainage pipe is installed in advance; when the stope filling body is air-dried to a certain degree, the roof surrounding rock drainage hole is used as a grouting hole, grouting and water plugging are conducted on the roof surrounding rock, and meanwhile the surrounding rock is reinforced. The influence of water spraying on filling slurry is reduced by disposing top plate water spraying in advance, meanwhile, the tree-shaped water drainage holes are formed in the filling ...

Light paper made of complete high-yield pulp and papermaking technology thereof

The invention discloses a light paper made of complete high-yield pulp and a papermaking technology thereof, belonging to the technical field of papermaking. The pulp of the light paper is poplar APMP (Alkaline Peroxide Mechanical Pulp) pulp and needle mechanical pulp; a ternary retention-aid filter-aid system PAC (Poly Aluminium Chloride) +CPAM (Cationic Polyacrylamide) +APAM (Anionic Polyacrylamide) is adopted, and chelating agent DTPA (Diethylene Triamine Pentacetic Acid) is adopted; the amount of other auxiliary materials is as follows: (A) the addition of AKD (Alkyl Ketene Dimer) is 1.1-1.3wt% of oven dry stock; and (B) the amount of the filler is 200-280kg/t of oven dry stock. The light paper produced by the invention has the characteristics of fine and smooth surface, high smoothness, small both-side difference, high original whiteness and low papermaking cost, is pure and natural and belongs to an environmentally-friendly product.

Open-air phosphorite mountain rock slope disaster monitoring system

The invention provides an open-air phosphorite mountain rock slope disaster monitoring system. The open-air phosphorite mountain rock slope disaster monitoring system comprises a data acquisition module, a data processing module, an evaluation module and a prediction module, the data acquisition module is used for acquiring factor data influencing the risk degree of the hazard source of the rock slope of the open-air phosphorite mountain; the data processing module is used for preprocessing the factor data; the evaluation module is used for obtaining risk evaluation of the open-air phosphorite mountain rock slope according to the preprocessed factor data; and the prediction module is used for obtaining prediction factor data in a future time period according to the collected factor data, and obtaining prediction risk assessment of the open-air phosphorite rock slope in the future time period based on the prediction factor data. According to the method, a real-time evaluation result can ...

Double-motor power head for drilling machine and use method of double-motor power head

The invention belongs to the technical field of coal mines. Relates to a double-motor power head for a drilling machine and a using method thereof, the double-motor power head for the drilling machine comprises a driving box body, two input shafts and an output shaft connected with a drilling rod are arranged in the driving box body, and the two input shafts are both in transmission connection with the output shaft; each input shaft is connected with a motor, and single-motor or double-motor driving is achieved by controlling the working states of the two motors, so that the output rotating speed of the power head is controlled. According to the double-motor power head for the drilling machine, the double motors are adopted as a power source, the output requirements of the rotating speed and the torque in different working states can be met, in the normal drilling process, the double motors are adopted for simultaneous driving, and efficient drilling and rapid deslagging are achieved; and ...

Continuous fold-type glass curtain wall

The invention discloses a continuous fold-type glass curtain wall which comprises a unit frame aluminum alloy column A, a unit frame aluminum alloy column B and hollow tempered glass. A pin on the unit frame aluminum alloy column A and a groove in the unit frame aluminum alloy column B are installed in a matching mode, and an installation groove is formed between the unit frame aluminum alloy column A and the unit frame aluminum alloy column B. An aluminum alloy side strip is fixedly installed in the installation groove through a screw, a decoration cover face is installed at one end of the aluminum alloy side strip stretching out of the installation groove, the hollow tempered glass is installed on the outside of the aluminum alloy side strip, and the hollow tempered glass, the unit frame aluminum alloy column A, the unit frame aluminum alloy column B and the aluminum side strip are fixedly bonded through silicone structure adhesive, foam strips and silicone weather-proof adhesive. The ...

Peritoneoscope patch sewing needle

The utility model provides an easy operation, the peritoneoscope patch sewing needle that the complication is few. The sewing needle comprises needle epitheca, cover line needle, the needle epitheca comprises epitheca needle file, epitheca needle body, syringe needle, and the epitheca needle body is the hollow tube, and the syringe needle front end is solid toper, and the syringe needle has an oblique connected in star with continuous of epitheca needle body, and grooved surface has a through wires hole, cover line needle comprises set line needle needle file, cover line needle needle body, cover coil, and the cover coil is one corner to be fixed at set collapsible quadrangle of line needle needle body head, the epitheca needle body internal diameter of cover line needle needle body diameter less than or equal to needle epitheca, the epitheca needle body internal diameter of 2 times of less than or equal to needle epithecas of the used wire diameter of cover coil. The utility model discloses ...

Tunnel roof caving support combining ceramsite plugging and steel arch and construction method of tunnel roof caving support

The invention discloses a ceramsite plugging and steel arch combined roadway roof caving support and a construction method thereof. The ceramsite plugging and steel arch combined roadway roof caving support comprises a roadway, a grouting pipe is embedded in a caving body of the roadway, and slurry is poured into a roof caving working face through the grouting pipe to form a grouting layer; a first sprayed concrete layer is arranged on the surface of the roadway, and anchor rods are constructed on roadway rock mass; the first sprayed concrete layer is filled with ceramsite to form a ceramsite material surface layer; laying a double-layer reinforcing mesh on the surface of the ceramsite material, and spraying slurry on the double-layer reinforcing mesh to form a slurry stop wall; a steel arch is erected on the side, facing the roadway, of the grout stopping wall, and concrete is sprayed to the steel arch to form a second concrete layer; according to the method, the stability of the roadway ...

Peritoneoscope pushes away knot ware

The utility model provides a simply, practical, safe and the be convenient for peritoneoscope pushes away knot ware that popularizes, by handle (1), push away knot pole (2) and meet, it is equipped with set line hole (3) to push away knot pole (2) on the body of rod of one side that meets with the handle, push away at arc end (5) of end for taking through wires hole (4) of knot pole (2). Cover line hole (3) is located and pushes away knot pole (2) the body of rod outside, perhaps overlaps line hole (3) for pushing away the sunken hole on knot pole (2) the body of rod. The length that pushes away the knot ware is 400mm-500mm, cover line hole (3) is 50mm-60mm with the distance of handle (1), the diameter that pushes away knot pole (2) is 2mm-4mm, the diameter in cover line hole (3) is 0.8mm-1.0mm, the diameter of through wires hole (4) is 0.8mm-1.0mm. Push away ligature (6) of knot ware but be the absorption line. Should push away knot ware easy operation, convenient to use, the ligature ...

Mining method for separate mining and separate transportation of gently inclined two-layer ore body containing soft interlayer

The invention discloses a mining method for separate mining and separate transportation of a gently inclined two-layer ore body containing a soft interlayer, and relates to the technical field of underground mining of non-metal ores. The ore body is divided into a middle section in the vertical height and then divided into a plurality of subsections, and each subsection is horizontally provided with a subsection roadway along a bottom plate of an upper ore layer; and the segmented roadways are respectively communicated with the panel slope ramp and the panel air return uphill. The upper layer ore and the lower layer ore in the panel are separately mined and transported, stoping is performed at intervals from bottom to top between sections, stoping operation is performed in one section, and filling is performed in the other section; stoping from bottom to top in the subsection, simultaneously operating a plurality of access roads in the same subsection, stoping a lower ore bed, alternately ...

Light paper made by blending complete high-yield pulp and papermaking technology thereof

The invention discloses a light paper made of complete high-yield pulp and a papermaking technology thereof, belonging to the technical field of papermaking. The pulp of the light paper is poplar APMP (Alkaline Peroxide Mechanical Pulp) pulp and needle mechanical pulp; a ternary retention-aid filter-aid system PAC (Poly Aluminium Chloride) +CPAM (Cationic Polyacrylamide) +APAM (Anionic Polyacrylamide) is adopted, and chelating agent DTPA (Diethylene Triamine Pentacetic Acid) is adopted; the amount of other auxiliary materials is as follows: (A) the addition of AKD (Alkyl Ketene Dimer) is 1.1-1.3wt% of oven dry stock; and (B) the amount of the filler is 200-280kg/t of oven dry stock. The light paper produced by the invention has the characteristics of fine and smooth surface, high smoothness, small both-side difference, high original whiteness and low papermaking cost, is pure and natural and belongs to an environmentally-friendly product.

Transcranial pulse gyromagnetic alpha brain wave frequency treatment and recovery system

The invention discloses a transcranial pulse gyromagnetic alpha brain wave frequency treatment and recovery system, and belongs to a system device used for treating brain diseases, and especially for treating patients having stroke and making the patients recover at the same time. A plurality of pulse electromagnetic fields of the alpha brain wave frequency are used for circulating around the head to carry out treatment, and the head top rotating magnetic field alpha brain wave frequency is used for treatment at the same time; the rotating speed, the circulating speed, the pulse frequency and the magnetic field intensity of the rotating pulse magnetic fields can be set and adjusted manually to stimulate the deep brain cortex, and pulse magnetism and infrared activation is carried out on the kidneys while the deep brain cortex is stimulated. The three-way-combined treatment and recovery method is suitable for treatment and recovery of the patients having stroke and patients with anxiety ...

Method for measuring hopping speed and frequency conversion time of high-speed frequency-hopping signals

The invention relates to a method for using software to measure the hopping speed and the frequency conversion time of high-speed frequency-hopping signals working on radio frequency band. A data acquisition module and a software processing module are included, wherein the data acquisition module includes an analogue down-conversion unit, an analogue to digital conversion unit, and an interface unit, and the software processing module includes a delay unit, a Hilbert transformation unit, a complex multiplier unit, a conjugation generating unit, a signal analyzing unit, and a display unit. The invention has the advantages that: the method for using the software to directly observe the hopping speed and the frequency conversion time of high-speed frequency-hopping signals in an upper computer is provided; and according to the method, the software processing way is adopted, and the function of observing the hopping speed and the frequency conversion time of high-speed frequency-hopping signals ...

Folding AGV carrying robot and using method thereof

The invention belongs to the technical field of carrying robots. Relates to a folding type AGV carrying robot and a using method thereof. The folding type AGV carrying robot comprises a folding type connecting frame and two supporting frames; the two supporting frames and the folding type connecting frame form a door-shaped structure, and the distance between the two supporting frames is adjusted through the folding type connecting frame. A hoisting mechanism is further arranged between the two supporting frames, is used for hoisting the middle of a workpiece and can slide between the two supporting frames to adjust the hoisting position; vertical lifting type hoisting devices which are vertically arranged are arranged on the opposite sides of the two supporting frames and used for hoisting the side edges of the workpiece, and through cooperation of the vertical lifting type hoisting devices on the two sides of the workpiece, the assembly azimuth angle adjustment of the workpiece is achieved ...

Programmable radio frequency down-conversion device

The invention discloses a programmable radio frequency down-conversion device which comprises an external clock, an FPGA, a PROM, a TDM digital tuner chip, an AGC module and an external filtering module; wherein the external clock is used for providing the clock needed in the work of the FPGA, the PROM and the TDM digital tuner chip. The frequency conversion device can realize frequency down-conversion of signals with 51-858 MHz, and is internally integrated with a local oscillator and an SAW filter; an output end is processed by filtering and can output an intermediate frequency signal by difference; and an AGC compensating device and an external filter circuit are arranged outside the output; therefore, the signal performance can be greatly improved. The device has the characteristics oflow cost and high signal output performance, and has the greatest characteristic of a method of combining a special chip module and an FPGA programming device, and is added with an AGC automatic gaincontrol ...

Compound additive special for industrial gear oil

A compound additive special for industrial gear oil is characterized by comprising base oil, antioxidant, corrosion inhibitor, metal passivator, anti-scuff agent, extreme pressure resistant agent, demulsification agent, friction modifier, foam inhibitor, viscosity index improver, magnesium metal powder and molybdenum disulfide; and the compound additive is economical and practical. The compound additive has the advantages of simple preparation scheme, strong heat stability, good high temperature extreme pressure performance, strong oxidative resistance and high abrasion, thereby prolonging the service life of demulsification and being capable of promoting the resistance to foaming; and the combination property of the compound additive is stronger than that of like products.

Double-swing clamp holder for drilling machine and drill rod dismounting method

The invention belongs to the technical field of coal mines. Relates to the technical field of drilling machines, in particular to a double-swing clamp holder for a drilling machine and a drill rod dismounting method, the double-swing clamp holder for the drilling machine is used for dismounting a drill rod, the double-swing clamp holder for the drilling machine comprises two clamping units which are coaxially arranged on a rack, the two clamping units are both arranged on a swing device, and the swing device is fixedly arranged on the rack. The driving unit is used for driving the clamping unit to rotate; when the drill rods are disassembled, the two clamping units clamp the front drill rod and the rear drill rod correspondingly, the swing device drives the two clamping units to rotate by a certain angle in the opposite directions, and therefore connecting buckles of the front drill rod and the rear drill rod are loosened. According to the double-swing clamp holder for the drilling machine ...

Laser hologram printer

The invention discloses a laser hologram printer, which is a record and output device which can draw colorful, three-dimensional holographic images or characters on film system or metal surfaces in real time by laser, belonging to the field of information technology (IT). The laser hologram printer sequentially comprises a laser device, an optical scanning system, a front imaging objective lens, a drum-like or cylindrical hologram code database, a rear imaging objective lens, a recording medium, a driving control system and the like. The laser hologram printer is mainly characterized in that the scanning beam randomly addresses on the outer drum or cylinder under high-speed rotation, reads holographic data, transforms the holographic data via the optical system, and prints on the recording medium to record and output, therefore, a multi-information encoded dot matrix holographic text is formed.

Process method for recovering light dydrocarbon oil gas

The invention relates to a process method for recovering a light dydrocarbon oil gas, comprising three steps from the oil gas to compression to liquefaction. A volatile componet processed by a solvent oil device is from a fractionating column to a horizontal type storage tank, enters a compressor, is compressed by the compressor to form liquor and then enters a special 6#solvent oil storage tank. The process method for recovering the light dydrocarbon oil gas has procedure and energy consumption saving, economic effect (the emptying light dydrocarbon oil gas is recovered by 2 tons/day which is equivalent to 8,000 yuan/day according to the market price of 4,000 yuan/ton, and economic benefits can be increased by 2,400,000 yuan per year), and safety and environment effect (the light dydrocarbon oil gas belongs to a flammable and combustible substance, environmental pollution is reduced due to the effective recovery of the light dydrocarbon oil, and the safety coefficient of the device is ...

Method for polishing Chinese medicament pills

The invention relates to a method for processing Chinese medicament pills, in particular to a method for polishing the Chinese medicament pills. The method polishes the surfaces of the Chinese medicament pills to ensure that the surfaces are as bright as mirrors, so the surface smoothness of the pills is improved, and the pills are convenient for patients to take.

Pressure filter with filter cloth assembly capable of being rapidly replaced and replacement method of pressure filter

The invention relates to the technical field of filtering equipment, in particular to a pressure filter with a filter cloth assembly capable of being rapidly replaced and a replacing method thereof.The pressure filter comprises a filter fan fixing frame, a filter screen is installed between frameworks of the filter fan fixing frame, a springback structure is installed at the end of the filter fan fixing frame, and a clamping groove is formed in the side edge of the filter screen; one end of the springback structure is installed on the filter fan fixing frame through a spring, a movable fixing rod is arranged at the top of the springback structure, the top end of the movable fixing rod is installed on the filter fan fixing frame, a clamping column is installed on one side of the bottom of the springback structure, and the clamping column is matched with a clamping groove in the side edge of the filter screen in a clamped mode. According to the design, the filter disc of the pressure filter ...

Construction tunneling method for underground mine roadway containing weak intercalated layer

The invention discloses a tunneling method for construction of an underground mine roadway containing a weak intercalated layer, and relates to the technical field of underground mine roadway construction. A horizontal grouting hole is formed in the vault position of the roadway, and single-hole grouting is conducted on the surrounding rock; grooving type tunneling is conducted in the middle of the roadway, and a supporting groove is dug; temporary supporting is conducted on the supporting grooves through wood stand columns, and prestress is applied to the roadway top plate through hydraulic equipment; the left half area of the roadway is excavated, and after single-side construction is finished, supporting operation is conducted on the single side; then the right half area is excavated, and after single-side construction is finished, supporting operation is conducted on the single side; and after excavation and supporting of the two sides are finished, wood stand columns of middle supporting ...

Programmable radio frequency down-conversion device

The invention discloses a programmable radio frequency down-conversion device which comprises an external clock, an FPGA, a PROM, a TDM digital tuner chip, an AGC module and an external filtering module; wherein the external clock is used for providing the clock needed in the work of the FPGA, the PROM and the TDM digital tuner chip. The frequency conversion device can realize frequency down-conversion of signals with 51-858 MHz, and is internally integrated with a local oscillator and an SAW filter; an output end is processed by filtering and can output an intermediate frequency signal by difference; and an AGC compensating device and an external filter circuit are arranged outside the output; therefore, the signal performance can be greatly improved. The device has the characteristics of low cost and high signal output performance, and has the greatest characteristic of a method of combining a special chip module and an FPGA programming device, and is added with an AGC automatic gain ...

A channel estimate method that eliminates the impact of timing deviation

The present invention is a channel estimate method that eliminates the impact of timing deviation. After compensation of timing deviation, data enter a delay unit and are divided into two ways of data. One way of the delayed data obtain pilot frequency through extraction of pilot frequency, estimate the channel where pilot frequency is in by using the pilot frequency and then obtain channel frequency domain response through channel interpolation, which will be used for channel compensation; the other way of data directly use the estimated channel frequency domain response as channel compensation. The advantage of the present invention is to provide a channel estimate method that eliminates the impact of timing deviation. This method effectively raises channel estimate accuracy at a small price.

Application of jieyu pill in drug treatment

The invention discloses application of jieyu pill in drug treatment; the jieyu pill is take orally 1-3 times every day, and 1-10g is taken each time, and one treatment course include 6-90 days; by adopting the technical proposal, the jieyu pill has obvious treating function to drug treatment patients through clinical research, tests show that the efficiency can reach 90 percent, the pill brings good news for the drug treatment patients and alleviates economic burdens.

Method capable of stabilizing paper stuff whiteness

A method to stabilize the paper pulp brightness belongs to the pulp and paper making technical field. By adding the diethylenetriamine pentaacetic acid into a front pulp grinding chest, a white waterchest and a pulp mixing chest of an alkaline peroxide mechanical pulp respectively, metallic ions in the system are concealed to reach the purpose of stabilizing the color and luster of the alkaline peroxide mechanical pulp(APMP pulp), promote the brightening efficiency of a brightening agent which is added subsequently, keep the original color and luster of the pulp, and reduce the amount of thebrightening agent added subsequently. With the method, the brightness of the finished paper reaches over 80 degrees SR, the brightening efficiency of the brightening agent added subsequently is promoted, and the amount of the brightening agent used is reduced. The finished product is provided with the bright color and luster, and the smooth feeling, and can meet the requirement of printing, so thegrade ...

Drill bit based on segmented design, design method of structural parameters of drill bit and drill bit

The invention discloses a drill bit based on segmented design and a design method for structural parameters of the drill bit. The design method comprises the steps that S1, a drill bit cutting edge is divided into multiple segments; s2, analyzing hole machining defects and extracting machining defect information; s3, grading the processing defects; s4, establishing an axial force calculation model and a horizontal component force prediction model of each section of cutting edge; s5, analyzing the influence of each section of cutting edge on the machining defect; s6, adjusting structural parameters of each section of cutting edge; s7, the drill bit is ground according to the structural parameters of the cutting edges in the step S6; and S8, performing a punching test on the drill bit obtained in the step S7, and verifying the validity. According to the drill bit design method for different materials, the drill bit development period can be shortened, and the drilling quality can be improved ...

Application of jieyu pill in drug treatment

The invention discloses application of jieyu pill in drug treatment; the jieyu pill is take orally 1-3 times every day, and 1-10g is taken each time, and one treatment course include 6-90 days; by adopting the technical proposal, the jieyu pill has obvious treating function to drug treatment patients through clinical research, tests show that the efficiency can reach 90 percent, the pill brings good news for the drug treatment patients and alleviates economic burdens.

Novel retention and filtration aid system for light paper

The invention discloses a novel retention and filtration aid system for light paper, and belongs to the technical field of pulping and papermaking. The novel ternary retention and filtration aid system consists of polyethylene imine, cationic polyacrylamide and anionic polyacrylamide, wherein the polyethylene imine is added into a high level tank and an external white water tank respectively to shield a large amount of interference anionic garbage in the pulp of the light paper and eliminate the negative effect of the anionic garbage on the sequentially added cationic polyacrylamide, so that the cationic polyacrylamide can fully play a role, more positive charge adsorption sites are reserved for the sequentially added anionic polyacrylamide, and the purpose of improving the retention rate of the pulp of the light paper on a net part is fulfilled; and meanwhile, the ternary retention and filtration aid system also reduces the consumption of the cationic polyacrylamide, the anionic polyacrylamide ...

Plate-type down-film evaporator descaling method

Mine high-water-content sludge cementing and curing material and preparation method thereof

The invention discloses a mine high-water-content sludge cementing and curing material and a preparation method thereof, and relates to the technical field of mine sludge curing. The concrete is prepared from the following components in parts by weight: 60-70 parts of fine aggregate, 25-30 parts of a cementing material and 5-10 parts of an additive, wherein the cementing material is prepared by compounding, mixing and grinding blast furnace water-quenched slag, yellow phosphorus slag, sulphoaluminate cement clinker, quick lime, purified phosphogypsum and water glass. The raw materials of the cementing material are mixed and ground by a grinding machine, and are uniformly mixed with the fine aggregate and the additive by a stirring machine to prepare the sludge cementing and curing material. The cementing material is subjected to a mixed grinding process, all the raw materials are in full contact in the mixed grinding process to generate a physical activation effect, the obtained cementing ...

Method for polishing Chinese medicament pills

The invention relates to a method for processing Chinese medicament pills, in particular to a method for polishing the Chinese medicament pills. The method polishes the surfaces of the Chinese medicament pills to ensure that the surfaces are as bright as mirrors, so the surface smoothness of the pills is improved, and the pills are convenient for patients to take.

Needle-shaped nanometer Cu-Sn-B alloy and preparation method

The invention discloses a needle-shaped nanometer Cu-Sn-B alloy and preparation method. The needle-shaped nanometer Cu-Sn-B alloy is characterized in that the nanometer Cu-Sn-B alloy which is prepared by using a slow-release reduction method is needle-shaped, the diameter of the nanometer Cu-Sn-B alloy is 250 nanometers to 300 nanometers, the draw ratio of the nanometer Cu-Sn-B alloy is 4:1, and the nanometer Cu-Sn-B alloy comprises the following ingredients in percentage by atomicity: 57.3% of Cu, 36.7% of Sn and 0.1% of B; and preparation recipes of the alloy comprise 11.24 g L-1 of copper sulfate, 12.81 g L-1 of sodium stannate, 17.65 g L-1 of sodium citrate, 10m g L-1 of sulfourea and 0.64 g L-1 of sodium borohydride, the pH (potential of hydrogen) value is 12-13, the temperature is 60 DEG C, and the reaction time is 10 minutes.

Capturing method and device for frequency hopping spread spectrum communication system based on folding sampling

The invention relates to a frequency hopping spread spectrum fast capturing method based on folding sampling, which belongs to the technical field of communication. The method comprises the following steps: setting a frequency generator, and enabling signals after frequency mixing to pass through a medium frequency broad band filter and an A/D (analog/digital) converter to perform the folding sampling so as to get digital wide frequency signals; performing rough capturing on the digital wide frequency signals, and generating a start signal for fine capturing according to the result of the rough capturing; setting a frequency generator, enabling the signals after the frequency mixing to pass through a medium frequency narrow band filter and the A/D converter to sample so as to get digital fixed medium frequency signals; performing the fine capturing on the digital fixed medium frequency signals, and generating the start signal for the rough capturing if the fine capturing is unsuccessful ...

Simple and easy multipurpose procedure cooling box

The utility model discloses a simple and easy multipurpose procedure cooling box, including cooling box main part, keep warm lid and sample groove, the lid that keeps warm is located the top of cooling box main part, sample trench in the inside of cooling box main part, the rectangle sample groove and the cylindrical sample groove of depositing the pipe is frozen including being used for depositing different models in the sample groove, the cooperation through thread sealing is covered with keeping warm to cooling box main part. The utility model discloses not only can be used for freezing save of summary procedure unicellular or that organize the type, can also satisfy great volume cell suspension's cooling and preserve and the multiple freezing needs of preserving container procedure cooling simultaneously. The thread sealing cooperation is covered in cooling box main part and heat preservation, more helps keeping the stability of cooling box, prevents box body and interior slotware's ...

Rail mounted game machine of playing with water

The utility model discloses a rail mounted game machine of playing with water, including central pond, the central authorities pond is ring tank (1), is equipped with three -dimensional contouring (2) among them, interactive molding (3) has been arranged on three -dimensional contouring (2), ring tank (1) periphery is equipped with circular orbit (4), install a plurality of jetting car (5) on circular orbit (4), each all be equipped with seat (5 -1) and squirt (5 -2) on jetting car (5), jetting car (5) bottom is equipped with wheel (5 -3), can circular orbit (4) are gone up and are marchd along annular orbit. The integration of various recreation project organics on water is in the same place to the game machine, and is not only interactive and interesting higher, more can arouse player's participation hospitable, and structural design is reasonable, and the cost is lower, the installation of being convenient for, maintenance.

Grouting anchor rod for layered slope of strip mine and construction method of grouting anchor rod

The invention discloses a grouting anchor rod for a layered side slope of a strip mine and a construction method of the grouting anchor rod, and relates to the technical field of side slope supporting. The grouting anchor rod comprises an anchor head, hollow anchor rod sections and a rubber pipe connecting section, the hollow anchor rod sections and the rubber pipe connecting section are distributed at intervals and communicated, the anchor head is arranged at the end of the hollow anchor rod section located at the head end, grouting is conducted on the end of the hollow anchor rod section located at the tail end, and grouting holes are formed in the side walls of the hollow anchor rod sections. During construction, the surface of the side slope is trimmed, so that the surface of the side slope is smooth; holes are drilled in the slope bottom and the slope surface in the direction perpendicular to the rock stratum, and the hole depth extends to the unexposed bedrock stratum; and a grouting ...

Precise time measuring method

The invention relates to a precise time measuring method, consisting of a waveform conversion module, an analog-to-digital conversion module, a counting module and a central processing module. The invention has the advantages that a method for eliminating decimal phase error of square wave is provided, and the method effectively improves the time measuring precision with lower cost.

Safe alcohol heater

The embodiment of the utility model discloses safe alcohol heater, including furnace body, alcohol trough and the pulse ignition of setting in the furnace body, wherein, pulse ignition includes pulse circuit, power, ignition switch and sets up the ignition needle on the alcohol trough inner wall that pulse circuit is connected with ignition needle, power and ignition switch electricity respectively. Compared with the prior art, alcohol heater in this application embodiment through setting up the pulse ignition that pulse circuit, ignition needle and ignition switch etc. Are formed, has realized that applied pulse signal carries out automatic ignition, does not need the operator to hold the pot to operate the alcohol heater on the other hand, and convenient and fast when having improved alcohol heater ignition rate, has also reduced the safe risk the when operator uses the alcohol heater.

Plate-type down-film evaporator descaling method

A descaling method for plate-type falling-film evaporators is provided, which belongs to the technology field of pulp and paper industry. The method includes the following steps: immersing a heat exchange plate of a plate-type falling-film evaporator in a white liquor containing 70-90 g/L of NaOH, boiling under such conditions that the temperature is 110-130 DEG C and the pressure is 0.1-0.15 MPa until the fiber scale is loose; and purging the fibrous scale from the surface of the heat exchange plate by using a high-pressure water gun at a pressure of 400-500 Kg/cm<2>. The method can remove fiber scale efficiently and completely. Compared with the prior art, the method lengthens the descaling period from one month to three months, shorten the descaling time by a half, removes the scale completely, increases the efficiency of the plate-type falling-film evaporator and improves the production capacity of the equipment.

Drill rod lifting mechanism

The invention belongs to the technical field of drill rod manufacturing. The drilling rod lifting mechanism comprises a lifting mechanism, a cross beam, a guide column and a V-shaped support. The guide column is fixedly arranged on the cross beam, the V-shaped support is fixedly arranged at the upper end of the guide column, and a supporting groove used for containing a drill rod is formed in the V-shaped support. A linear rolling guide sleeve is arranged on the guide column and detachably installed on a movable clamp workbench of the friction welding machine. The guide column is arranged in the linear rolling guide sleeve in a sliding mode, the cross beam is arranged at the upper end of the lifting mechanism, the guide column on the cross beam is driven by the lifting mechanism to move up and down, and therefore lifting of a drill rod on the V-shaped support is achieved. The automatic feeding and discharging device is simple in structure, high in reliability, long in service life, good ...

Method capable of stabilizing paper stuff whiteness

Method for preparing depression alleviating pills

The invention discloses a method for preparing depression alleviating pills, which comprises the preparation processes of: performing pulverization, decoction, filtration and concentration on medicinal materials, and then preparing the medicinal materials into pills, wherein in the pulverization process of the medicinal materials, radix bupleuri, Chinese angelica, white paeony root and radix curcumae in the medicinal materials are subjected to ultramicro pulverization for 30 minutes to 4 hours so as to ensure that the grain size of medicinal powder reaches between 5 and 10 mu m. By adopting the technical scheme, the radix bupleuri, the Chinese angelica, the white paeony root and the radix curcumae in the depression alleviating pills are pulverized by adopting ultramicro pulverization technology, and because cell walls of Chinese medicinal materials can be broken, the grain size of medicinal fine powder reaches between 5 and 10 mu m and the cell wall-broken rate reaches over 95 percent, ...

Ultrasonic water bath device for chemical plating

The invention relates to an ultrasonic water bath device for chemical plating. The device is composed of an ultrasonic generator, an ultrasonic transducer vibrator, a stainless steel water bath tank and a heater. The ultrasonic generator and the ultrasonic transducer vibrator are fixed to the outer wall and the inner wall of the stainless steel water bath tank respectively. The stainless steel water bath tank is fixed to the heater. The ultrasonic water bath device for chemical plating is characterized in that an ultrasonic transducer is installed in the temperature control water bath tank, the ultrasonic technology is used, the concentration degrees, the temperatures and the reaction speeds of chemical plating liquid on all surfaces to be plated of complex plated pieces are identical, and therefore the uniformity of plating layer of the surfaces to be plated of the complex plated pieces is guaranteed.

Precise time measuring method

The invention relates to a precise time measuring method, consisting of a waveform conversion module, an analog-to-digital conversion module, a counting module and a central processing module. The invention has the advantages that a method for eliminating decimal phase error of square wave is provided, and the method effectively improves the time measuring precision with lower cost.

Sweeping method and system for microwave curing of CFRP workpiece

The invention discloses a sweeping method and system for microwave curing of a CFRP workpiece, and relates to the technical field of forming and manufacturing of carbon fiber reinforced resin matrix composites.The method comprises the steps that the sweeping power and the sweeping time period are calculated according to material data of the carbon fiber reinforced resin matrix composite workpiece; for any surface of the carbon fiber reinforced resin matrix composite workpiece, performing microwave irradiation sweeping on the surface by adopting a microwave loading source according to a first sweeping mode based on the first time period and the sweeping power; based on the second time period and the sweeping power, the microwave loading source is adopted to carry out microwave irradiation sweeping on the surface according to a second sweeping mode; the second sweeping mode comprises the following steps: repeatedly sweeping for multiple times by adopting a third sweeping grid, updating the ...

Inward opening frame type window

The invention discloses an inward opening frame type window and relates to the technical field of building engineering. The inward opening frame type window comprises an opening sash, a turnover frame and a sash frame, wherein the opening sash is an outward opening sash; the sash frame is of an inward opening frame structure. The inward opening frame type window is characterized by further comprising an inner frame positioner, wherein the inner frame positioner is arranged in a connecting groove opening of the opening sash and the sash frame. The inward opening frame type window further comprises a positioning head and a connecting screw, wherein the positioning head is strip-shaped; the width of the positioning head is matched with that of the connecting groove opening; a connecting hole is formed in the middle of the positioning head; the connecting screw is vertically arranged; one end of the connecting screw is in threaded connection with the turnover frame, and a stop element is arranged ...

Color printing ink solvent oil and preparation method thereof

The invention relates to a preparation method of color printing ink solvent oil. The color printing ink solvent oil is prepared by utilizing naphthenic base crude oil fractions, adopting a special dearomatization process and a clay decoloring and refining process to produce base oil and adding proportioned unique compound additive, i.e. the solvent-refining process and the clay decoloring and refining process are carried out to the base oil which is then proportioned by a complex additive to finally prepare finished oil. The method does not generate aromatic toxicity and lessens damage to human beings; the color printing ink solvent oil keeps balance between the dissolving capacity and the release property of resin, solves the problems of unstable product indexes, such as water resistance,penetrability, and the like and has good printing performance, printing stability and storage stability of printing ink, light colors, good water resistance, strong penetrability, suitable aniline point ...

Freeze oil collecting device that stands

The utility model relates to a freeze oil collecting device that stands. The fixed ammonia in oil collecting pool's upper end connects, and lower extreme fixed oil ammonia connects, and the ammonia connects to connect with oily ammonia and communicates with each other with the oil collecting pool inner chamber is sealed, and oily ammonia connects sealed the communicating with each other in bottom with the cold collecting main of low pressure oil through oil pipe, and the ammonia connects breathes in the collecting main with low pressure and seal up and communicate with each other. Its simple structure, recovered oil ammonia mixture effectively makes the thorough discharge of unnecessary oily ammonia mixture in the cold pipeline of low pressure oil to in sending the ammonia back to compressor, make the ammonia obtain abundant utilization.

Organic compound papermaking bactericide

The invention discloses an organic compound papermaking bactericide, which is 10 mass percent solution prepared by dissolving two active bactericidal components, namely methylene di-thiocyanic acid ester and 2,2-dibromo-cyano phthaleins amine in a mass ratio of 2:1 into an organic solvent, namely dimethylformamide. The organic compound papermaking bactericide has the advantages of wide bactericidal spectrum and good bactericidal effect, prolongs cleaning period of a papermaking machine, does not cause medicament resistance and can be stably used for a long time. Because the active components thereof do not have strong oxidability, the organic compound papermaking bactericide lessens corrosion and does not consume chemicals in a system.