Preparation method of polyetherimide resin waterproof coating used in frost climate

The invention relates to a preparation method of a polyetherimide resin waterproof coating used in the frost climate. The coating comprises the following raw materials in parts by weight: 80-90 parts of polyetherimide resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 3-6 parts of sodium methylsilanolate, 4-7 parts of aluminium sulfate, 15-20 parts of ethylene glycol and 5-8 parts of water-soluble amide. The preparation method comprises the following steps: firstly mixing the polyetherimide resin, triethanolamine, ethylene glycol and water-soluble amide, then adding melamine, titanium dioxide, expanded perlite and hydroxyethyl cellulose, mixing the materials to prepare primary slurry, mixing sodium methylsilanolate and aluminium sulfate, then adding the primary slurry and mixing the materials, finally melt-extruding the mixture with an extruder, and grinding the product in ...

Formula ultrasonic detection pipe cut straightly

The utility model discloses a formula ultrasonic detection pipe cut straightly, include: bottom tube and well pipe are provided with the draw -in groove in this bottom tube, should be provided with the snap ring groove in well upper portion of managing, and the lower part in this snap ring groove is provided with the sealing ring, still includes survivor of a murder attempt's snap ring, and when the pipe inserted the bottom tube in being somebody's turn to do, this survivor of a murder attempt's snap ring was moved out certainly, makes this bottom tube and the automatic locking of well pipe. The draw -in groove be 1 to 2 ring. The snap ring groove be 1 to 2. Formula ultrasonic detection pipe cut straightly's external diameter be 50mm, 53mm, 54mm, 57mm, 60mm or 46mm, the wall thickness is 0.9 -3.5mm, the pipe range is 0.5 -12m, this formula ultrasonic detection pipe cut straightly connects conveniently, survivor of a murder attempt's snap ring is from moving out after inserting, make this ...

Vegetable yield-increasing conditioning agent and use thereof

The invention discloses a vegetable yield-increasing conditioning agent and a use thereof and belongs to the field of plant growth regulation and control. The vegetable yield-increasing conditioning agent is a suspending agent containing prohexadione calcium as a main component. The vegetable yield-increasing conditioning agent is prepared from 0.3-60wt% of prohexadione calcium, 0.1-2.0wt% of a wetting agent, 0.2-45.0wt% of a dispersant, 0.1-8.0wt% of a thickening agent, 2.0-15wt% of an antifreezing agent, 0.1-12wt% of a stabilizing agent, 0-5.0wt% of an antifoaming agent and the balance water. The vegetable yield-increasing conditioning agent has the advantages of good safety, low use amount, no toxicity and no residue. Prohexadione calcium is mainly used for inhibiting conversion of GA20 into GA1, does not produce adverse influence on GA4 synthesis and effectively prevents crop premature senility.

Production method for oyster mushrooms rich in selenium and zinc

The invention discloses a production method for oyster mushrooms rich in selenium and zinc, and belongs to the technical field of cultivation of edible fungi. The production method comprises the steps of mother strain preparation, stock preparation and cultivation of oyster mushrooms, wherein sodium selenite and zinc sulfate are added into a mother strain preparation culture medium and a stock preparation culture medium, and sodium selenite and zinc sulfate are further added to composts for oyster mushroom cultivation. By means of the production method, the oyster mushrooms absorb a high content of selenium and zinc in the growing process, are high in yield, and can well provide and add the selenium and zinc microelements needed by the human body when serving as food.

Aviation kerosene fixed bed deacidification-mercaptan removing-decoloration fine combination process

The present invention relates to an aviation kerosene fixed bed catalytic oxidation mercaptan removing combination process, which sequentially comprises: pre-alkali washing, oil-liquid separation, water washing, salt filtration, mercaptan removing, oil-gas separation, decoloration and alkali washing. According to the present invention, compared with the hydrotreating process, the combination process of the present invention has the following characteristics that: the product cost is substantially reduced and is only about 10% of the production cost of the hydrotreating process; the combination process has the following advantages that: with wind injection control, alkali substance concentration control and other methods, the influence of the mercaptan removing process reaction by-product on the oil product quality is avoided; compared with the existing process, the combination process of the present invention has the following characteristics that: mercaptan removing and basic nitrogen ...

Device and method applied to thermal desorption treatment of mercury-contaminated soil

The invention discloses a device and a method applied to thermal desorption treatment of mercury-contaminated soil. The device comprises a pretreatment unit, a charging unit, a fuel supply unit, a thermal desorption unit, a high-temperature dust removal unit, a condensate water treatment unit, a discharging unit, a tail gas cooling unit and a tail gas treatment unit, wherein the pretreatment unit is connected with the charging unit; the charging unit, the fuel supply unit, the discharging unit and the high-temperature dust removal unit are connected with the thermal desorption unit; the high-temperature dust removal unit is connected with the tail gas cooling unit; the tail gas cooling unit is connected with the tail gas treatment unit and the condensate water treatment unit; the condensate water treatment unit is connected with the discharging unit; the thermal desorption unit adopts a thermal screw conveyor. According to the device, the contaminants are indirectly heated, volatilized ...

Emery wheel production fiber mat system of placing

The utility model relates to an emery wheel production fiber mat system of placing, include: supporting fiber mat is the net piece supporting rack that drives fiber mat and go up and down, net piece rack, the one end correspondence of net piece rack sets up in emery wheel molding machine mold conveyer belt top, and the other end correspondence of net piece rack sets up in net piece supporting rack top, and net piece sucking disc device slides to set up to be on net piece rack and corresponds on the mould conveyer belt fiber mat state on emery wheel forming die or the net piece supporting rack respectively, the frame is retrieved to the baffle, and baffle recovery unit sets up on the frame is retrieved to the baffle.

Wireless stereo-video receiver-transmitter

The utility model relates to a novel device used for watching stereoscopic pictures, which is mainly designed in view of the aspect that a pair of wired stereoscopic glasses occupies screen space, is limited by the length of the wire, has limitation on the numbers of watching persons, can not be connected with a computer to conduct the communication, etc., and the device is composed of a transmitting part and a receiving part. A synchronizing signal is transmitted and received through an infrared remote-control pair tube, the correspondence of the opening and the closing of a left and a right liquid-crystal sheets and two frames of the images of an odd and an even fields is realized, and the purpose of watching stereoscopic programs is achieved. The utility model has the advantages of reasonable design and low electric consumption, makes people freely watch stereoscopic programs, edits three-dimensional stereoscopic pictures by connecting a computer, and conducts the work, such as virtual ...

Edible oil with health-care function

The invention belongs to the technical field of edible oil and particularly relates to edible oil with a health-care function. According to the edible oil, the mass ratio of omega-3 series polyene unsaturated fatty acid and omega-6 series polyene unsaturated fatty acid in the edible oil is 1:(1.0-1.20). The edible oil with the health-care function provided by the invention has a scientific and reasonable ratio of the content of the fatty acid and especially has a certain curative effect on diabetes mellitus and hyperlipaemia; after common people eat the edible oil, the diabetes mellitus and the hyperlipaemia can be prevented from occurring; the symptoms can be improved when people with the diabetes mellitus and the hyperlipaemia eat the edible oil.

Thermal-insulation and sound-insulation coating

The invention relates to a thermal-insulation and sound-insulation coating. The coating comprises the following components in parts by mass: toluene diisocyanate, glycerin, a catalyst, a nonionic chain extender, an ionic chain extender, a neutralizing agent, a siliane coupling agent, silicon powder, carbon fibers, bentonite and a dispersing agent.

Charging head lamp for medical

The utility model provides a medical headlamp which is simple and practical and can be flexibly used for illuminating various places. A power transformer and a power plug are removed on the existing head belt in a headlamp with the structure of the electrical connection of a bulb, the power transformer and a power supply in an order. A high-capacity rechargeable battery is raised. The high-capacity rechargeable battery, a switch and the bulb are electric connection. The bulb is made to emit light which is focused and reflected to an observational point through a reflector. Or in the headlamp with the structure of the sequential connection of a cold light source, a light conductive fiber and the helmet of a condenser, the transformer or the cold light source or the light conductive fiber is removed. The rechargeable battery and the switch are added. The rechargeable battery, the switch and the bulb are electric connection. The bulb is made to emit light which is focused and reflected to ...

1,4-butanediol aliphatic dicarboxylic ester coating and preparation method

The invention relates to a 1,4-butanediol aliphatic dicarboxylic ester coating. The coating is prepared from the following raw materials in parts by weight: 55-65 parts of 1,4-butanediol, 30-35 parts of aliphatic dicarboxylic acid, 3-5 parts of dicyandiamide, 5-10 parts of polyether modified polysiloxane, 12-14 parts of acetone, 5-10 parts of ammonium iodide, 10-15 parts of asbestos powder and 45-50 parts of deionized water. A preparation method comprises the following steps: adding 1,4-butanediol and aliphatic dicarboxylic acid to a reaction kettle, and heating the materials to react at 150-180 DEG C for 24-36 hours; then adding polyether modified polysiloxane and acetone, stirring the materials uniformly, and reacting at 70-80 DEG C for 5-8 hours; finally adding ammonium iodide, asbestos powder and deionized water while stirring, and stirring the materials for 3-7 hours, thus obtaining the coating.

Non-contact type pressure testing device and chemical digesting equipment

The invention relates to a non-contact type pressure testing device for testing pressure of tank bodies for holding samples. The device comprises a reflector panel and a light beam transmitting and receiving assembly, wherein the reflector panel is provided with a surface capable of reflecting light; the light beam transmitting and receiving assembly is arranged opposite to the reflector panel. The invention furthermore provides chemical digesting equipment which comprises a plurality of tank bodies, one or a plurality of pressure testing devices and a driving device, wherein the driving device is connected with the pressure testing devices or the tank bodies to drive the pressure testing devices and the tank bodies to generate relative movement, and then each pressure testing device can continuously test the pressure of each tank body. The invention has the advantages that the pressure testing devices are not in contact with the tank bodies in the pressure testing process and are in a ...

Mechanical-auxiliary electric dehydration device

The invention relates to a mechanical-auxiliary electric dehydration device which comprises an electric dehydration unit and a pressure supply unit, wherein the electric dehydration unit comprises a reactor, a piston, two electrodes and a filtering medium, and the piston, the two electrodes and the filtering medium are arranged in the reactor; one electrode is a porous conductive plate; the pressure supply unit comprises a pneumatic cylinder with a push rod for applying force to the piston, and the pressure supply unit is arranged above the electric dehydration unit. The invention also provides a method for mechanical-auxiliary electric dehydration by using the device.

Emery wheel production fiber mat places sucking disc

The utility model relates to an emery wheel production fiber mat places sucking disc, including slide, guiding axle, lift cylinder and vacuum chuck, the slide slides and sets up on net piece rack, and the vertical cross -under of guiding axle is on the slide and the horizontally connect vacuum chuck of guiding axle bottom, and the lift cylinder is fixed to be set up on the slide, and vacuum chuck, the last support claw that is equipped with the adjustable vacuum chuck of stretching into below more than three of vacuum chuck are connected to the flexible end of lift cylinder.

Emery wheel production is thrown material and is pressed network system

The utility model relates to an emery wheel production is thrown material and is pressed network system, include: press the net support, press the net support to support on the emery wheel make -up machine, lift cylinder, lift cylinder support through cylinder support plate to be connected on pressing the net support, the lift jib, the lift jib is connected the lift cylinder and is along with lift cylinder jacking condition, lift clamping ring, the activity of lift clamping ring hang to connect to be to throw off movable jib joint emery wheel forming die plug synchronous revolution or hang on the lift jib and meet the synchronous jacking condition of lift jib.

Material system is scraped in emery wheel production

The utility model relates to a material system is scraped in emery wheel production, scrape the material support including setting up on the emery wheel make -up machine, scrape and wear to be equipped with two lifters on the material support perpendicularly, it has the fine setting axle to scrape material support upper support, finely tune epaxial two the fine setting eccentric wheels of wearing to be equipped with, cylinder support plate through spring coupling on scraping the material support and support on two fine setting eccentric wheels, a fine setting motor is connected to fine setting axle one end, arbitrary fine setting eccentric wheel or finely tune epaxial be connected with one with the fine setting sensing head of fine setting axle with the axle center, scrape and be equipped with and finely tune the fine setting sensor that the sensing head corresponds on expecting the support, cylinder support plate support to connect the lifter through the lift cylinder, and on the material ...

Carboxyl-terminated bromine carbon polyester resin fire-retardant coating used in desert climate and preparation method of fire-retardant coating

The invention relates to a carboxyl-terminated bromine carbon polyester resin fire-retardant coating used in desert climate and a preparation method of the fire-retardant coating. The carboxyl-terminated bromine carbon polyester resin fire-retardant coating is prepared from the following raw materials in parts by mass: 80-90 parts of carboxyl-terminated bromine carbon polyester resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 2-8 parts of an ionic chain extender capable of forming hydrophilic groups and having an active hydrogen and 1-10 parts of a silane coupling agent. The preparation method comprises the following steps of firstly mixing carboxyl-terminated bromine carbon polyester resin, triethanolamine, the ionic chain extender capable of forming hydrophilic groups and having activated hydrogen and the silane coupling agent, adding and mixing melamine, titanium dioxide ...

Fiber mesh holding sucker used in grinding wheel production

The invention relates to a fiber mesh holding sucker used in grinding wheel production. The fiber mesh holding sucker comprises a sliding base, a guide shaft, a lifting cylinder and a vacuum sucking disc, wherein the sliding base is arranged on a mesh holding rack in a sliding manner; the guide shaft is vertically connected with the sliding base in a penetration manner; the vacuum sucking disc is horizontally connected to the bottom end of the guide shaft; the lifting cylinder is fixedly arranged on the sliding base; the telescopic end of the lifting cylinder is connected with the vacuum sucking disc; more than three adjustable support claws which extend below the vacuum sucking disc are arranged on the vacuum sucking disc.

Biogas slurry organic fertilizer processing device

The utility model belongs to the technical field of fermentation equipment, and particularly discloses a biogas slurry organic fertilizer processing device which comprises a stirring type fermentation tank, a stirring mechanism is arranged in a tank body of the stirring type fermentation tank, and the stirring mechanism comprises a stirring paddle and a driving part for driving the stirring paddle to rotate. The stirring shaft comprises a rotating shaft as well as a forward helical blade and a reverse helical blade which are coaxially arranged on the rotating shaft, the forward helical blade and the reverse helical blade are arranged at an interval, and the upper end of the rotating shaft extends out of the tank body and is connected with an air pipe through a rotating joint; a channel extending in the length direction of the rotating shaft is formed in the rotating shaft so as to be communicated with the air pipe, a plurality of one-way valves communicated with the channel are arranged ...

Preparation method of carboxyl-terminated bromine-carbon polyester resin fireproof coating used in marine climate

The invention relates to a preparation method of a carboxyl-terminated bromine-carbon polyester resin fireproof coating used in the marine climate. The coating comprises the following raw materials in parts by weight: 80-90 parts of carboxyl-terminated bromine-carbon polyester resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 3-6 parts of sodium methylsilanolate and 4-7 parts of aluminium sulfate. The preparation method comprises the following steps: firstly mixing the carboxyl-terminated bromine-carbon polyester resin and triethanolamine, then adding melamine, titanium dioxide, expanded perlite and hydroxyethyl cellulose, mixing the materials to prepare primary slurry, mixing sodium methylsilanolate and aluminium sulfate, then adding the primary slurry and mixing the materials, finally melt-extruding the mixture with an extruder, and grinding the product in sequence, thus ...

Self-adaptive anti-seismic point polishing machine

The invention belongs to the field of polishing, and particularly relates to a self-adaptive anti-seismic point polishing machine which comprises a shell, a connector is fixedly arranged on one side of the shell, a fixed cylinder is arranged on one side of the connector, a sliding head is slidably arranged on the side, away from the connector, of the fixed cylinder, a bottom plate is fixedly arranged on the side, away from the connector, in the shell, and the shell communicates with the interior of the connector. A driving part is arranged in the shell and the connector, a round opening is formed in the position, opposite to the fixed cylinder, in the connector, an extrusion rod is rotationally arranged in the round opening, the extrusion rod is slidably connected with a sliding head, a one-way valve is fixedly arranged at the end, away from the extrusion rod, of the sliding head, and a support is rotationally arranged on the circumference of the one-way valve; second springs are connected ...

Carbonation reactor of energy-efficient nano calcium carbonate and preparation method of energy-efficient nano calcium carbonate

The invention relates to a preparation method of energy-efficient nano calcium carbonate, the main steps are as follows: in carbonization, first a compressed kiln gas is cooled to 25 DEG C by deep well water, during the carbonization process, carbonized slurry is directly cooled by the kiln gas, the cooling effect is increased, the heat produced in the slurry carbonization process can be absorbed directly, and the carbonized slurry temperature is effectively controlled. During the carbonization, the kiln gas enters into an interlayer of an outer barrel and an inner barrel from the periphery of an umbrella-shaped gas distributor to drive the slurry in the interlayer to move from bottom to up, under the action of a porous helical baffle plate, on the one hand, a gas liquid passes through multiple holes of the helical baffle plate to make larger bubbles smaller by division; on the other hand, under the action of the helical baffle plate, the upward gas liquid forms a vortex for enhancement ...

Scraping device used in grinding wheel production

The invention relates to a scraping device used in grinding wheel production. The scraping device comprises a scraper rack, a scraper adjusting base and a scraper, wherein the scraper rack is connected with the bottom of a lifting rod; the scraper adjusting base is moveably connected with the scraper rack through a connecting shaft in a penetration manner; any one side of the scraper adjusting base is connected with the scraper rack through a spring; the scraper is connected with the scraper adjusting base.

Control method for abrasive wheel cutting machine

The invention relates to a control method for an abrasive wheel cutting machine. The abrasive wheel cutting machine comprises an object carrying platform, an abrasive wheel cutting machine body and an outer framework, the abrasive wheel cutting machine body is located above the object carrying platform, both the object carrying platform and abrasive wheel cutting machine body are located in the outer framework, the abrasive wheel cutting machine further comprises a feeding mechanism, a jig mechanism, a vertical lifting feeding mechanism and a control system, and the feeding mechanism, jig mechanism and vertical lifting feeding mechanism are respectively connected with the control system. The feeding distance of the automatic feeding mechanism can be set, the feeding is controlled through the automatic control system, the continuous testing can be realized, the personal error due to repeated locating of the manual feeding in the testing process is avoided, and the safety is higher.

Highly effective defrosting heat pump hot water machine and its controlling method

Sound-insulation fireproof moistureproof paint and preparation method thereof

The invention relates to sound-insulation fireproof moistureproof paint and a preparation method thereof. The sound-insulation fireproof moistureproof paint comprises, by mass part, toluene diisocyanate, glycerin, melamine, dicyandiamide, neopentylene glycol, alkoxylated diol, a neutralizer, a silane coupling agent, ground silica, carbonized fibers, bentonite and a dispersant. The preparation method comprises the following steps of orderly adding glycerin, melamine, alkoxylated diol and dicyandiamide into a reactor, feeding nitrogen protective gas into the reactor, carrying out stirring heating, adding toluene diisocyanate into the mixture, adding neopentylene glycol into the mixture, carrying out cooling to a room temperature, adding the silane coupling agent into the cooled mixture, adding the neutralizer into the mixture, carrying out stirring emulsification, adding deionized water into the emulsion, carrying out stirring emulsification, adjusting a pH value of the emulsion, carrying ...

Video signal digital delay conversion method

The video signal digital delay conversion method is characterized by that it can utilize digital delay mode to make parity field picture of general video signal produce overall skewing in horizontal direction so as to produce stereoscopic effect, and its delay length can be regulated between 0-8 microseconds, and can be read out by means of digitron, and two stereoscopic modes of picture-projected screen of picture-recessed screen can be freely selected.

Novel spiral film-drawing system for grinding wheel production

The invention relates to a novel special film-drawing system for grinding wheel production. The novel special film-drawing system comprises a feeding roller and a receiving roller, wherein the feeding roller and the receiving roller are respectively arranged on the inlet side and the outlet side of a grinding wheel forming moulding press; a film material penetrating into a mould pressing opening of the grinding wheel forming moulding press is connected between the feeding roller and the receiving roller in a rolling manner, and the film material is arranged under a mould pressing head of the grinding wheel forming moulding press. The novel special film-drawing system is simple in structure and convenient to use, can effectively prevent grinding wheel blanks from being adhered to the grinding wheel forming mould pressing head, and improves the quality of the formed upper surface of a grinding wheel.

Emery wheel production core ring letter sorting grabbing device

The utility model relates to an emery wheel production core ring letter sorting grabbing device, including snatching the slide, snatching the guiding axle, snatching lift cylinder and core ring sucking disc, snatch the slide and slide and set up on the core ring snatchs the frame, snatch the lift cylinder and set up on snatching the slide, two snatch the guiding axle slides the cross -under perpendicularly on snatching the slide, and the piston rod of the cylinder who snatchs the lift cylinder connects two and snatchs the guiding axle, and cores ring sucking discs are connected to two bottoms of snatching the guiding axle.

Double containment pincers pressure formula sounding pipe

The utility model discloses a double containment pincers pressure formula sounding pipe, include: sounding pipe female end and sounding pipe socket end, the tip of sounding pipe female end be provided with first tongue and second tongue, this first tongue and second tongue parallel arrangement of each other to interval between first tongue and the second tongue is greater than zero, be provided with first sealing washer in this first tongue, be provided with the second sealing washer in this second tongue, sounding pipe socket end insert sounding pipe female end 10cm, this first tongue and second tongue receive shrinkage deformation behind the hydraulic tong extrusion atress, during outer tubular product between first tongue and the second tongue was absorbed in the tubular product of sounding pipe socket end, first sealing washer and second sealing washer received after the extrusion laminating between sounding pipe female end and sounding pipe socket are held simultaneously, formation ...

Two-phase stainless steel processing technology based on two-phase hardness distribution consistency

The invention discloses a two-phase stainless steel processing technology based on two-phase hardness distribution consistency, which comprises the following steps: S1, establishing a two-phase force solving model of a two-phase material, and solving two-phase forces of the two-phase material; s2, establishing a two-phase microhardness calculation model considering the tool front angle and the cutting amount, and revealing an influence rule of the tool front angle and the cutting amount on the two-phase microhardness; and S3, the influence rule of the tool front angle and the cutting amount on the two-phase microhardness distribution characteristics in the cuttings is revealed, the matching relation between the tool front angle and the cutting amount is obtained under the condition that the two-phase microhardness distribution is consistent, and the machining technology of the duplex stainless steel is optimized. The method disclosed by the invention reveals the influence rule of two-phase ...

Grinding wheel cutting machine

The invention relates to a grinding wheel cutting machine which comprises an object table, a grinding wheel cutting machine body and an outer frame, wherein the grinding wheel cutting machine body is located on the object table; the object table and the grinding wheel cutting machine body are both located in the outer frame; the grinding wheel cutting machine further comprises a feeding mechanism, a clamp mechanism, a vertical lifting feeding mechanism and a control system; the feeding mechanism, the clamp mechanism and the vertical lifting feeding mechanism are connected with the control system respectively. The feeding distance of the automatic feeding mechanism can be set; feeding is controlled by the automatic control system, so that testing can be performed continuously, personal errors caused by repeated positioning in manual feeding in a testing process are avoided, and the grinding wheel cutting machine is safer.

Emery wheel production material loading refining device

The utility model relates to an emery wheel production material loading refining device, including refining motor, refining axle and the refining push pedal more than, the refining axle that sets up in the refining dish is connected to the refining motor, the plane of refining push pedal and refining axle dead in line and through the connecting rod along refining axle circumference or refining axle circle gradually to burst at the seams the even fixture sliding seat of orientation epaxial in the refining, the one end of refining axle is kept away from in the corresponding refining push pedal of discharge gate.

Method for preparing polycation thermal activation microporous bimetal filler

The invention discloses a method for preparing a polycation thermal activation microporous bimetal filler. According to the method, a polycation thermal activation microporous bimetal filter capable of removing Cr (VI) is prepared by using an inorganic microporous sintered body prepared by attapulgite as the carrier, waste iron powder and copper as the main material and polymeric cation [AlO4Al12(OH)24(OH2)12]7<+> as the modifying agent. The product prepared according to the method has high strength and high permeability, and can be used for solving the problems of low utilization rate, easy agglomeration and passivation during reaction between iron powder and Cr (VI) by fully utilizing the specific surface area of waste iron powder; the filler prepared according to the method has higher property of Cr (VI) removal by about 30 folds compared with the common iron powder, provides technical support for large-scale in-situ remediation of underground water containing Cr (VI), and has good environmental ...

Modular cavity slip casting stock

The utility model discloses a modular cavity slip casting stock, include: the cavity stock body of rod, the screw -thread steel body of rod and connecting sleeve all are provided with the external screw thread of uniform pitch on the surface of this the cavity stock body of rod and the screw -thread steel body of rod, this connecting sleeve links together this the cavity stock body of rod and the screw -thread steel body of rod, the one end tip of this screw -thread steel body of rod is provided with the anchor head, and the one end tip of this cavity stock body of rod is provided with only starches stopper, backing plate and nut, wherein the backing plate setting end between thick liquid stopper and the nut, should end the thick liquid stopper with the right side surface in close contact with of backing plate, this nut with the left side surface in close contact with of backing plate, the central part of this cavity stock body of rod forms hollow slip casting pipe, this slip casting pipe ...

用于射频模块盲插的自动导正装置

... 一种用于射频模块盲插的自动导正装置，包括设置在射频模块插座上的二级导正定位孔、设置在与射频模块相插接的插接框背板中的插座上，与所述二级导正定位孔相对应的二级导正销，还包括设置在所述射频模块插座附近的至少两个一级导正定位孔，设置在与射频模块相连接插框的背板上，与所述一级导正定位孔相对应的至少两个一级导正销，本自动导正装置，采用二级导正定位孔和二级导正销结构实现模块和插接框的连接，不但插拔操作方便，而且插拔可靠性大大提高。 ...

High-temperature dust removal device for thermal desorption exhaust

The invention discloses a high-temperature dust removal device for thermal desorption exhaust. The device comprises a high-temperature cyclone dust collector, a high-temperature bag type pulse dust collector and a high-temperature resistant gas pipeline, wherein high-temperature desorption exhaust is subjected to primary dust removal through the high-temperature cyclone dust collector, and enters the high-temperature bag type pulse dust collector through the high-temperature resistant gas pipeline to be subjected to secondary dust removal. The dust removal rate of the thermal desorption exhaust subjected to two stages of high-temperature dust removal can reach over 99%, and the device can be used for removing solid granules with the size of greater than 0.2 micron in the desorption exhaust.

Preparation method of polyurethane waterproofing paint comprising polytetrahydrofuran and copolyether thereof

The invention relates to a preparation method of a polyurethane waterproofing paint comprising polytetrahydrofuran and copolyether thereof. The polyurethane waterproofing paint comprises the following components in parts by mass: 100 parts of polytetrahydrofuran and copolyether polyalcohol thereof, 15-25 parts of ethoxyethyl acetate, 7-10 parts of carbamide, 4-6 parts of potassium tripolyphosphate, 3-5 parts of light calcium carbonate, 3-5 parts of zinc acetate, 1-2 parts of calcium chloride, 150-200 parts of deionized water, 6-8 parts of defoamer and 1-10 parts of silane coupling agent. The method comprises the following steps: stirring polytetrahydrofuran and copolyether polyalcohol thereof and ethoxyethyl acetate at a low speed to react for 0.5-1h; sequentially adding carbamide, potassium tripolyphosphate, light calcium carbonate, zinc acetate and calcium chloride, stirring for 20min and then adding deionized water; and adding the defoamer and the silane coupling agent under a stirring ...

Highly effective defrosting heat pump hot water machine and its controlling method

The invention relates to a heat-exchange heat pump hot-water machine with highly effective defrosting function and the control method. The hot-water machine comprises the following: a compressor, a water side heat exchanger, a expansion valve, a wind side heat exchanger and a gas-liquor separator, wherein the water side heat exchanger, the expansion valve and the wind side heat exchange construct Carnot refrigeration cycle channel in series, the water side heat exchanger input end of Carnot refrigeration cycle channel is communicated with the high pressure side of the compressor, the output end of the gas-liquor separator is communicated with the compressor. The hot-water machine is characterized by the following: connecting with the first magnetic valve in series in the Carnot refrigeration cycle channel; connecting with the second magnetic valve between the outer end of the water side heat exchanger and the high pressure side of the compressor; connecting with the third magnetic valve ...

Fiber mat places well revolving rack

The utility model relates to a fiber mat places well revolving rack, separate paper ejecting device including netting piece transfer bearing plate and netting the piece, the net piece includes the release cylinder and releases the baffle that the release baffle sets up to be is netting zero clearance slip state on the piece transfer bearing plate plane, releases the baffle and connects the release cylinder on netting piece transfer bearing plate at a distance from paper ejecting device.

Shallow line cup mechanism for fishing reel

The utility model provides a shallow line cup mechanism for a fishing reel. The shallow line cup mechanism solves the technical problems that an existing fishing reel line cup is large in weight and high in cost. Comprising a hollow wire cup body, a cavity partition plate is arranged in the middle of an inner cavity of the wire cup body and comprises an annular partition plate, a shaft sleeve and an annular boss, the outer ring of the annular partition plate is connected with the inner surface of the wire cup body, and the middle of the outer surface of the shaft sleeve is connected with the inner ring of the annular partition plate; one end of the annular boss is connected with the end face, close to the head of the spool body, of the annular partition plate, and the annular boss, the shaft sleeve and the spool body are coaxially arranged. The fishing reel is widely applied to the technical field of fishing reels.

Emery wheel production feeding system

The utility model relates to an emery wheel production feeding system, including refining dish, feeding track and branch material track, be equipped with the refining device in the refining dish, the discharge gate corresponds the refining device and sets up on the refining dish, and the correspondence of feeding track one end sets up in the discharge gate below, and the correspondence of the feeding track other end sets up in a minute material track top. Its simple structure need not not manual operation, labour saving and time saving, and the material loading is efficient, and is safe in utilization.

Novel membrane special plane system is drawn in emery wheel production

The utility model relates to a novel membrane special plane system is drawn in emery wheel production, including setting up respectively in the feed roll and receipts material roller of emery wheel moulded die press intake side and outlet side, the rolling is connected with and wears to locate the intraoral membrane material of emery wheel moulded die press mould pressing between feed roll and the receipts material roller, the membrane material sets up in emery wheel moulded die press mould pressing head below. Its simple structure, convenient to use can effectively prevent emery wheel base adhesive tape in emery wheel moulded die pressure head, surface quality in the shaping of improvement emery wheel.

Abrasive wheel cutting machine and control method thereof

The invention relates to an abrasive wheel cutting machine and a control method thereof. The abrasive wheel cutting machine includes an object table, an abrasive wheel cutter and an outer frame, wherein the abrasive wheel cutter is positioned above the object table; the object table and the abrasive wheel cutter are both positioned in the outer frame; the abrasive wheel cutter includes the feeding mechanism, a fixture mechanism, a vertical lift feeding mechanism and a control system; the feeding mechanism, the fixture mechanism and the vertical lift feeding mechanism are respectively connected with the control system. The automatic feeding mechanism is settable in feeding distance, the feeding is controlled by the automatic control system, the continuous test can be achieved, and personal errors caused by repeated positioning of manual feeding during a test process are avoided, thus being safer.

Preparation method of 1,4-butanediol aliphatic dicarboxylic ester coating

The invention relates to a 1,4-butanediol aliphatic dicarboxylic ester coating. The coating is prepared from the following raw materials in parts by weight: 55-65 parts of 1,4-butanediol, 30-35 parts of aliphatic dicarboxylic acid, 3-5 parts of dicyandiamide, 5-10 parts of polyether modified polysiloxane, 12-14 parts of acetone, 5-10 parts of ammonium iodide, 10-15 parts of asbestos powder and 45-50 parts of deionized water. A preparation method comprises the following steps: adding 1,4-butanediol and aliphatic dicarboxylic acid to a reaction kettle, and heating the materials to react at 150-180 DEG C for 24-36 hours; then adding polyether modified polysiloxane and acetone, stirring the materials uniformly, and reacting at 70-80 DEG C for 5-8 hours; finally adding ammonium iodide, asbestos powder and deionized water while stirring, and stirring the materials for 3-7 hours, thus obtaining the coating.

Fiber mat gets puts feed arrangement

The utility model relates to a fiber mat gets puts feed arrangement, feed arrangement include feeding slide, feeding guiding axle, feeding lift cylinder and vacuum chuck, and the feeding slide slides and sets up on net piece rack, and the vertical cross -under of feeding guiding axle is on the feeding slide and feeding guiding axle bottom horizontally connect vacuum chuck, and feeding lift cylinder is fixed to be set up on the feeding slide, and vacuum chuck is connected to the flexible end of feeding lift cylinder.

Non-contact type pressure testing device and chemical digesting equipment

The invention relates to a non-contact type pressure testing device for testing pressure of tank bodies for holding samples. The device comprises a reflector panel and a light beam transmitting and receiving assembly, wherein the reflector panel is provided with a surface capable of reflecting light; the light beam transmitting and receiving assembly is arranged opposite to the reflector panel. The invention furthermore provides chemical digesting equipment which comprises a plurality of tank bodies, one or a plurality of pressure testing devices and a driving device, wherein the driving device is connected with the pressure testing devices or the tank bodies to drive the pressure testing devices and the tank bodies to generate relative movement, and then each pressure testing device can continuously test the pressure of each tank body. The invention has the advantages that the pressure testing devices are not in contact with the tank bodies in the pressure testing process and are in a ...

Material-loading system for grinding wheel production

The invention relates to a material-loading system for grinding wheel production. The material-loading system comprises a material homogenizing pan, a material loading track and a material distribution track, wherein a material homogenizing device is arranged in the material homogenizing pan; a discharge opening corresponding to the material homogenizing device is formed in the material homogenizing pan; one end of the material loading track is correspondingly arranged under the discharge opening; the other end of the material loading track is correspondingly arranged above the material distribution track. The material-loading system for grinding wheel production is simple in structure, is free of manual operation, saves time and labor, has high material loading efficiency and is safe to use.

Preparation method of transparent padding functional calcium carbonate specially used for TPR shoe material

The invention discloses a preparation method of transparent padding functional calcium carbonate specially used for a TPR shoe material. The preparation method including following steps: adding a certain amount of a mixture solution composed of sodium aluminate and sodium silicate to a suspension liquid of a nano calcium carbonate slurry; continuously adding kiln gas with stirring to carry out a carbonization hydrolysis reaction; then adding a water-soluble silane coupling agent with an addition amount being 2-3% based on the weight of calcium carbonate; performing a surface coating process for 0.1-1 hour; and finally filtering the slurry to obtain a filter cake with water content being less than 45% and carrying out a drying process at 90-110 DEG C to obtain the TPR transparent padding functional calcium carbonate. The preparation method is simple in technology. The prepared functional calcium carbonate is added to the TPR shoe material with an addition amount being 10-15%. The addition ...

Freezing weather polyetherimide resin waterproof coating and preparation method thereof

The invention relates to a freezing weather polyetherimide resin waterproof coating and a preparation method thereof. The freezing weather polyetherimide resin waterproof coating consists of the following raw materials in parts by mass: 80-90 parts of polyetherimide resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 3-6 parts of sodium methylsilanolate, 4-7 parts of aluminum sulfate, 15-20 parts of ethylene glycol and 5-8 parts of water-soluble amide. The preparation method comprises the following steps: firstly mixing the polyetherimide resin with triethanolamine, ethylene glycol and water-soluble amide, then adding melamine, titanium dioxide, expanded perlite and hydroxyethyl cellulose, mixing to prepare primary pulp, mixing and blending sodium methylsilanolate and aluminum sulfate, then adding the primary pulp for mixing, and finally sequentially performing melting extrusion ...

Hollow grouting anchor rod

The utility model discloses a hollow grouting anchor rod, include: the cavity stock is personally experienced sth. Part of the body, is provided with the external screw thread of uniform pitch on the surface of this cavity stock body, the one end tip of this cavity stock body is provided with the anchor head, and the other end is provided with and only starches stopper, backing plate and nut, wherein the backing plate setting end between thick liquid stopper and the nut, should end the thick liquid stopper with the left side surface in close contact with of backing plate, this nut with the right side surface in close contact with of backing plate, the central part of this cavity stock body forms hollow slip casting pipe, this slip casting pipe is connected through slip casting joint and slip casting machine, the surface of anchor head on be provided with a plurality of barbs, after the hollow grouting anchor rod that install the anchor head inserts the hole with the rock drilling machine ...

Flow control device of medium-large flow gas and particles and application method thereof

The invention provides a flow control device of medium-large flow gas and particles and an application method. The flow control device comprises at least one sampling channel, an air extractor and an overall channel; each sampling channel comprises a sampling head with an air inlet, a flow sensor and a flow adjusting valve, wherein the sampling head with the air inlet is used for collecting gas and particles, the flow sensor is used for detecting the flow in each sampling channel, and each sampling channel is communicated with one end of the total channel through the flow adjusting valve; the flow adjusting valve is used for adjusting the flow of each sampling channel, another end of the overall channel is connected with the air extractor, and the air extractor is used for extracting the flow control device. The flow control device provided by the invention has the advantages of being convenient to expand a plurality of sampling channels and being capable of collecting various projects ...

Flange formula ultrasonic detection pipe

The utility model discloses a flange formula ultrasonic detection pipe, include: push pipe and bottom tube, the one end of this push pipe is provided with the top cap, still is provided with push pipe flange piece on this push pipe, is provided with O type sealing washer near this push pipe flange piece, and this O type sealing washer all is greater than zero apart from the interval at the both ends of this push pipe, the one end of bottom tube be provided with bottom tube flange piece, the other end of bottom tube be provided with the film, a partially insert of push pipe the bottom tube for this push pipe flange piece and bottom tube flange piece will O type sealing washer closely press from both sides in the centre, with bolt and nut with this push pipe flange piece and bottom tube flange piece fixed connection. Flange formula ultrasonic detection pipe's external diameter be 50mm, 53mm, 54mm, 57mm, 60mm or 46mm, the wall thickness is 0.9 -3.5mm, the pipe range is 0.5 -12m.

Fiber mesh holding system for grinding wheel production

The invention relates to a fiber mesh holding system for grinding wheel production. The fiber mesh holding system comprises a mesh bearing frame, a mesh holding rack and a partition board recycling rack, wherein the mesh bearing frame is used for bearing fiber meshes and lifting the fiber meshes; one end of the mesh holding rack is correspondingly arranged above the die conveying belt of a grinding wheel forming machine; the other end of the mesh holding rack is correspondingly arranged above the mesh bearing frame; mesh sucker devices are arranged on the mesh holding rack in a sliding way, and respectively correspond to a grinding wheel forming die on the conveying belt and the fiber meshes on the mesh bearing frame; a partition board recycling device is arranged on the partition board recycling rack; the partition board recycling device is moved to a position under the mesh holding rack or a position beside the mesh holding frame corresponding to the mesh sucker devices.

Material system is thrown to abrasive machine

The utility model relates to a material system is thrown to abrasive machine, include: the silo, the last pay -off belt that is equipped with of belt pulley group, the pay -off belt sets up and be parallel gap state with the silo end opening under the silo, the take -up (stock) pan supports on the counter weight is directly shaken, seals the side joint charging tray and sets up in the arbitrary side of pay -off belt below, is equipped with on the opening side joint charging tray and seals controlling means, be equipped with weighing sensor on the title charging tray, the title charging tray seals the side and sets up in opening side joint charging tray below, calls that charging tray activity hinge joint on title charging tray support, is equipped with the upset cylinder that a drive title charging tray overturn on the title charging tray support, and title charging tray opening side sets up in emery wheel molding machine mold top, throw the material brush by what throw material brush motor ...

Pincers pressure formula sounding pipe

The utility model provides a pincers pressure formula sounding pipe, includes: sounding pipe female end and sounding pipe socket end, the tip of sounding pipe female end be provided with the tongue, set up O type sealing washer in this tongue, the sounding pipe socket serve and be provided with the marking, this marking has predetermined distance with the tip of one side of this sounding pipe socket end, sounding pipe socket end insert the sounding pipe female end, make the tip of tongue aim at the marking, the distance of the central line of this O type sealing washer to this marking is less than the distance that is located the inside tip of this sounding pipe female end of central line to the sounding pipe socket end of this O type sealing washer, the coincident position of this sounding pipe female end and sounding pipe socket end receives hydraulic tong extrusion back, and the section becomes the hexagon.

Scraping system for grinding wheel production

The invention relates to a scraping system for grinding wheel production. The scraping system comprises a scraping bracket arranged on a grinding wheel forming machine, wherein two lifting rods vertically penetrate through the scraping bracket; a fine adjustment shaft is born on the scraping bracket; the fine adjustment shaft penetrates through two fine adjustment eccentric wheels; an air cylinder support plate is connected with the scraping bracket through a spring and born on the two fine adjustment eccentric wheels; one end of the fine adjustment shaft is connected with a fine adjustment motor; either of the fine adjustment eccentric wheels or the fine adjustment shaft is connected with a fine adjustment sensing head which is coaxial with the fine adjustment shaft; a fine adjustment sensor corresponding to the fine adjustment sensing head is arranged on the scraping bracket; the air cylinder support plate supports and is connected with the lifting rods via a lifting air cylinder; the ...

Sounding pipe detection device

The utility model provides a sounding pipe detection device, includes: the steel reinforcement cage, steel reinforcement cage owner muscle, plastics sounding pipe, the connecting piece, first head spare and second head spare, plastics sounding pipe and steel reinforcement cage owner muscle fixed connection, plastics sounding pipe evenly fixes at the circumference of steel reinforcement cage inboardly, it is firm that the cleek ligature is pricked with the iron wire in 2 meters at every interval, inboard equidistant a plurality of plastics sounding pipe, not the plastics sounding pipe parallel of each other on same vertical straight line of setting up of circumference of steel reinforcement cage, the connecting piece connect between two adjacent plastics sounding pipe on same vertical straight line, the most lower section plastics sounding pipe's tip adopts first head spare sealed, upper segment plastics sounding pipe's tip adoption second head spare seals.

Feed system of grinding wheel machine

The invention relates to a feed system of a grinding wheel machine. The feed system comprises a feed hopper, a belt wheel set, a receiving pan, a weighing pan and a feed brush, wherein a feed belt is arranged on the belt wheel set; the feed belt is arranged below the feed hopper and is parallel to the lower opening of the feed hopper, and a gap is reserved between the feed belt and the lower opening of the feed hopper; the receiving pan is supported on a balance weight linear vibrator; the closed side of the receiving pan is arranged under any side of the feed belt; a closing control device is arranged on the open side of the receiving pan; a weighing sensor is arranged on the weighing pan; the closed side of the weighing pan is arranged under the opening side of the receiving pan; the weighing pan is movably hinged to a weighing pan bracket; an overturning steam cylinder for overturning the weighing pan is arranged on the weighing pan bracket; the open side of the weighing pan is arranged ...

Microwave-electric chemical rapid heavy-metal detector and application thereof

The invention discloses a heavy-metal electric-chemical rapid detector, which comprises an electric-chemical analysis system and a microwave emitter, wherein the electric-chemical analysis system comprises a peristaltic pump, a work electrode, an assistant electrode, a reference electrode, a screening sleeve and an electrolytic cell, wherein the peristaltic pump is arranged between a sample to be detected and the reference electrode or the assistant electrode, the screening sleeve is arranged between the electrolytic cell and the reference electrode or the assistant electrode, the work electrode partially extends into the electrolytic cell, the part of the work electrode above the electrolytic cell is wrapped by the screening sleeve, and the assistant electrode and the reference electrode are arranged above the screening sleeve. The invention also discloses a heavy-metal electric-chemical detection system and a detection method of heavy metals in the sample.

Fiber mesh placing and transferring rack

The invention relates to a fiber mesh placing and transferring rack which comprises a mesh transferring support plate and a mesh interleaving paper push-out device, wherein the mesh interleaving paper push device comprises a push-out cylinder and a push-out baffle; the push-out baffle is arranged on the mesh transferring support plate and is in a gapless sliding state on the plane of the mesh transferring support plate; the push-out baffle is connected with the push-out cylinder.

Control method of heat treatment resistance furnace based on linear order-reduction active disturbance rejection control technology

The invention discloses a control method of a heat treatment resistance furnace based on a linear order-reduction active disturbance rejection control technology, which can improve the control accuracy of the output temperature of the heat treatment resistance furnace during control and can achieve a relative good effect of energy conservation and consumption reduction. The control method comprises the steps of 1, establishing a control model of the heat treatment resistance furnace; 2, designing a linear order-reduction active disturbance rejection controller according to the control model established in the step 1; 3, determining dynamic characteristics of the resistance furnace with the help of a soaring curve, and bringing forward an active disturbance rejection parameter quick determination method based on PID parameter setting; 4, designing a new control system circuit and a new system control cabinet on the basis that original PID control instruments of the resistance furnace are ...

Emery wheel production core ring letter sorting grasping system

The utility model relates to an emery wheel production core ring letter sorting grasping system, include: core ring shale shaker for the core ring bearing frame of supporting core ring, core ring shale shaker are carried and are connected core ring bearing frame, the core ring snatchs the frame, and the core ring grabbing device set up on the core ring snatchs the frame. Its simple structure, compactness need not not manual operation, can carry the core ring by emery wheel forming die on tendency emery wheel make -up machine conveyer belt, and degree of automation is high, and accuracy, stability are placed to the core ring, are favorable to improving work efficiency and emery wheel shaping quality.

Automatic construction system and method thereof for electronic circuit design

Preparation method and application of self-activated persulfate oxidized medicament

The invention discloses a preparation method and application of a self-activated persulfate oxidized medicament. The self-activated persulfate oxidized medicament is prepared from persulfate, an activator, an adhesive and a dispersant, wherein the molar ratio of persulfate and the activator is (0.5:1)-(5:1), and based on the weight of a mixture of persulfate and the activator, the addition of the adhesive is 10-15% and the addition of the dispersant is 1-5%. Persulfate and calcium peroxide mixed in a certain proportion and prilled and moulded are applied to repairing polluted water and sites, so that the medicament is self-activated without additionally adding the activator, thereby overcoming the problem that the medicament is non-uniform to mix, extremely simplifying the construction operation and improving the treatment efficiency.

Plant-based microbial pesticide

The invention relates to a plant-based microbial pesticide; the adopted raw materials are as follows: thunder god vine, tobacco leaf, radix sophorae flavescentis, liquorice and the like; the plant-based microbial pesticide is prepared according to material sorting, crashing, soaking, heating, filtering, distilling, preparing, detecting and other technology processes; the filtered decoction dregs can be aired and crushed to prepare powdered drugs; the plant-based microbial pesticide has the beneficial effects that: (1) more than 20 kinds of pests can be killed, such as aphids, cotton bollworms, cabbage caterpillar and the like; the plant-based microbial pesticide can prevent and control five diseases, such as wilt, greensickness and the like; the plant-based microbial pesticide has the characteristics of broad spectrum, high efficiency, low toxicity, no drug resistance and long activeness; the plant-based microbial pesticide has remarkable disease control and pesticidal effect on crops by ...

Grinding wheel production fiber mesh partition recovery device

The invention relates to a grinding wheel production fiber mesh partition recovery device which comprises a partition tray, a tray supporting seat and a partition retaining frame. The tray supporting seat is arranged on a partition recovery frame, one end of the partition tray is movably supported on the tray supporting seat and is in a state of horizontally rotating around a supporting point of the tray supporting seat, and the partition retaining frame is arranged on the partition recovery frame and is in a state of being perpendicular to a rotating plane of the partition tray to block the other end of the partition tray.

Notebook shell coating as well as preparation method and application thereof

The invention relates to a notebook shell coating as well as a preparation method and application thereof. The notebook shell coating comprises the following components in parts by mass: 60-65 parts of trans-1,4-cyclohexane didsocyanate, 25-35 parts of n-butyl alcohol, 15-20 parts of an aminosilane coupling agent, 5-10 parts of tributyltin methacrylate, 8-15 parts of dimethylbenzene, 20-30 parts of modified spherical carbonyl iron powder, 4.5-9 parts of epoxy resin, 10-20 parts of aluminum oxide particles, 10-12 parts of borax and 50-100 parts of deionized water.

Fiber mat placing system

The invention relates to a fiber mat placing system which comprises a fiber mat feeding frame used for lifting and bearing fiber mats, a fiber mat transferring frame used for positioning and bearing the fiber mats, and a fiber mat placing frame; the fiber mat placing frame is arranged above a grinding wheel forming machine mold conveying belt, the fiber mat transferring frame and the fiber mat feeding frame correspondingly; a fiber mat taking and placing device is arranged on the fiber mat holding frame in a state of simultaneously corresponding to a grinding wheel forming mold on the mold conveying belt and the fiber mat transferring frame or simultaneously corresponding to the fiber mat transferring frame and the fiber mat feeding frame.

Automatic guide for blind insertion of RF modules

The set for automatically guiding the radio frequency module to be inserted correctly comprises the two-stage guiding location hole, the two-stage guiding pin, at least two of the one-stage guiding locatino hole and at least two of the one-stage guiding pin. The said two-stage guiding location hole is positioned on the socket of the radio frequency module. The two-stage guiding pin is positioned on the socket of the backboard of the pinboard frame splicing to the radio frequency module. The one-stage guiding location hole is located near the socket of the radio frequency module. The location of the one-stage guiding pin is relevant to the said one-stage guiding location hole. The invented guiding set provides the features of easy and reliable inserting and pulling operation.

Microwave reaction device combining optical fiber temperature measurement and scanning pressure measurement technology

The present invention provides a microwave reaction device combining optical fiber temperature measurement and the scanning pressure measurement technology. The microwave reaction device comprises a transmitter rotating support, a connection rod, a rotary disc and at least one digestion tank with an optical fiber insertion passage, wherein a sliding ring is installed on the transmitter rotating support, an optical fiber signal transmitter is connected with the sliding ring and can synchronously rotate with the transmitter rotating support, the connection rods connects the transmitter rotating support and the rotary disc, the digestion tank with the optical fiber insertion passage is arranged on the rotary disc, and the rotary disc can drive all the digestion tanks with the optical fiber insertion passages to rotate. The microwave reaction device provided by the present invention is advantageous in that optical fiber temperature measurement is realized while guaranteeing non-contact pressure ...

Emery wheel production fiber mat baffle recovery unit

The utility model relates to an emery wheel production fiber mat baffle recovery unit, including baffle tray, tray bearing and baffle fender frame, the tray bearing sets up on the frame is retrieved to the baffle, and baffle tray one end horizontal anomalous movement supports and be the state around its bearing point horizontal rotation on the tray bearing, and the baffle keeps off erectting and arranges in on the baffle recovery frame.

Preparation method for submicron active calcium carbonate special for PVC and with low oil absorption value

The invention discloses a preparation method for submicron active calcium carbonate special for PVC and with low oil absorption value. The preparation method comprises the main steps: preparing a solution of a refined calcium hydroxide slurry with a weight percentage of 5-7%, adding a crystal-form controlling agent cane sugar accounting for 0.4-0.8% by weight of calcium hydroxide, introducing kiln gas containing carbon dioxide with a concentration of 25% or more, controlling the temperature of the reaction slurry at 27-30 DEG C for carbonization, when the carbonization rate is 15-25%, stopping cooling water, continuing to introduce kiln gas for normal-temperature carbonization, wherein the carbonization terminal point is that the pH value of the slurry is less than 7; then heating the slurry to 80 DEG C, adding a saponification emulsion of stearic acid accounting for 2.5-4.5% by weight of calcium carbonate, and under the effect of high shearing force of an emulsification pump, synchronously ...

Fiber mesh picking and placing transfer feed device

The invention relates to a fiber mesh picking and placing transfer feed device which comprises a transfer feed slide seat, a transfer feed guide shaft, a transfer feed lift air cylinder and a mesh inner hole clamping column, wherein the transfer feed slide seat is arranged on a mesh holding frame in a sliding manner; the transfer feed guide shaft is vertically connected to the transfer feed slide seat in a penetration manner, and a transfer connector is horizontally connected to the bottom end of the transfer feed guide shaft; the transfer feed lift air cylinder is fixedly arranged on the transfer feed slide seat; the transfer connector is connected to the telescopic end of the transfer feed lift air cylinder; an upper mesh baffle and a lower mesh baffle are arranged on the upper side and lower side in the transfer connector; the mesh inner hole clamping column with an inverted frustum structure is glidingly connected to the lower mesh baffle in a sliding manner; the upper and lower parts ...

Sewage denitrification carrier preparation system and preparation method

The invention belongs to the technical field of sewage denitrification carriers, and discloses a sewage denitrification carrier preparation system and method, and the system comprises a material preparation reactor which is provided with a feed port and a discharge port and is used for heating, melting and mixing materials; the distributor is connected with the discharge hole and enables the mixed liquid to form liquid drops; the forming device is used for cooling the liquid drops into a forming carrier; and a controller; wherein the material preparation reactor is also provided with a first heating sleeve, a built-in heater and a first stirrer; the first heating sleeve is positioned at the periphery of the material preparation reactor cavity; the built-in heater is positioned in the cavity; the first stirrer is inserted into the cavity of the material preparation reactor; and the controller is in telecommunication connection with the first heating sleeve, the built-in heater and the first ...

Biogas slurry and biogas residue separation and field fertilization integrated device

The utility model relates to the technical field of biological fermentation treatment equipment, and particularly discloses a biogas slurry and biogas residue separation and field fertilization integrated device which comprises a fermentation tank, solid-liquid separation equipment, a pressure pump and a water replenishing device which are connected in sequence, the sewage pump is used for conveying a solid-liquid mixture in the fermentation tank to the solid-liquid separation equipment, the solid-liquid separation equipment is used for separating a solid substance from a liquid substance through screen plate filtration, the separated liquid substance is conveyed to a field through a pipeline by utilizing a pressure pump, and the pipeline is provided with a water replenishing pipe. According to the utility model, excrement, sewage and other dirt are subjected to fermentation treatment through the fermentation tank, biogas generated in the process is conveyed to each gas using place through ...

Preparation method of special low-viscosity activated calcium carbonate for silicone adhesive

The invention discloses a preparation method of special low-viscosity activated calcium carbonate for silicone adhesive. The preparation method comprises the following main steps: cane sugar being 0.3-0.8% of calcium hydroxide by weight is added in calcium hydroxide slurry; then kiln gas is introduced for quickly carbonizing; the initial temperature of the carbonization is controlled about 30 DEG C, and the final temperature is controlled about 55 DEG C; after the carbonization is finished, zinc chloride being 0.5-10% of calcium carbonate by weight is added in the slurry; the calcium carbonate slurry is grinded by adopting a vertical bead mill. Mixed emulsion of lauric acid and stearic acid is added in the grinded slurry; under the effect of a homogenizing pump, the dispersion of calcium carbonate and the surface coating are synchronously finished. Finally, the product is obtained by filtering and drying. The particle size of the product is within 0.3-0.8 microns; no agglomeration phenomenon ...

Preparation method of maritime climate polyetherimide resin water-proof coating

The invention relates to a preparation method of a maritime climate polyetherimide resin water-proof coating. The maritime climate polyetherimide resin water-proof coating comprises the following raw materials in parts by weight: 80-90 parts of polyetherimide resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 3-6 parts of ssodium methylsiliconate and 4-7 parts of aluminum sulfate. The preparation method comprises the following steps of: firstly mixing the polyetherimide resin and triethanolamine; then adding melamine, titanium dioxide, expanded perlite and hydroxyethyl cellulose, mixing into a raw stock, mixing and blending sodium methylsilanolate and aluminum sulfate, and then adding to the raw stock for mixing; finally sequentially carrying out melt extrusion through an extruder and crushing to obtain the coating.

Core ring sorting and grasping support rack used in grinding wheel production

The invention relates to a core ring sorting and grasping support rack used in grinding wheel production. The core ring sorting and grasping support rack comprises a core ring taking and placing connecting plate, a core ring lifting cylinder, core ring guide shafts and a core ring fixing tool, wherein the core ring taking and placing connecting plate is connected with the outer side of a grinding wheel forming conveyer belt; one end of the core ring lifting cylinder is vertically connected with the core ring taking and placing connecting plate; the other end of the core ring lifting cylinder is connected with the lower ends of the two core ring guide shafts which are vertically connected with the core ring taking and placing connecting plate in a sliding penetration manner; the core ring fixing tool is arranged on the core ring taking and placing connecting plate; the upper ends of the two core ring guide shafts are tightly propped against the lower end surface of an upper core ring on ...

Isophorone diisocyanate fireproof coating used for solid wood particle board and preparation method of coating

The invention relates to an isophorone diisocyanate fireproof coating used for a solid wood particle board and a preparation method of the coating. The isophorone diisocyanate fireproof coating comprises the following components in parts by mass: 80-90 parts of isophorone diisocyanate, 25-30 parts of benzoic acid, 30-35 parts of phthalic acid, 20-30 parts of ammonium iodide, 20-25 parts of asbestos powder, 4.5-9 parts of epoxy resin, 5.0-10 parts of titanium dioxide, 2-5 parts of precipitated barium sulfate, 1-2 parts of a flame retardant, 1-1.5 parts of antimony trioxide and 2-3 parts of organic expansive soil. The preparation method comprises the following steps of firstly adding 80-90 parts of isophorone diisocyanate, 25-30 parts of benzoic acid and 30-35 parts of phthalic acid into a reactor, heating to 150-180 DEG C and reacting for 24-36 hours; adding 20-30 parts of ammonium iodide, 20-25 parts of asbestos powder, 4.5-9 parts of epoxy resin, 5.0-10 parts of titanium dioxide, 2-5 parts ...

Screw thread formula sounding pipe

The utility model discloses a screw thread formula sounding pipe, include: insert tube and faucet pipe are provided with wooden top cap on this insert tube, loose joint nut and cold -heading saddle, wooden top cap setting at the tip of this insert tube for the one end of sealed this insert tube, the loose joint nut set up between wooden top cap and cold -heading saddle, be provided with tube end on this faucet pipe, the insert tube insert through this tube end faucet pipe, this faucet pipe's tip still is provided with the film, this film is with faucet pipe's end seal. Screw thread formula sounding pipe's external diameter be 50mm, 53mm, 54mm, 57mm, 60mm or 46mm, the wall thickness is 0.9 -3.5mm, the pipe range is 0.5 -12m.

Automatically constant pressure heat pump hot-water machine

The invention relates to an automatic pressure heat pump hot water machine of the heat exchange equipment, including compressor, reversing valve, water side heat exchanger, the reservoir, dry filter, expansion valve, the wind side heat exchanger, and the forms the thermal cycling loop, in which the water side heat exchanger, the reservoir and dry filter connects in series to be a high-voltage circuit, and through reversing valve connects to the high-pressure compressor side, the wind side heat exchanger connects to the low-voltage circuit, by the reversing valve connects to the low-pressure side of the compressor, between the high-pressure and low-voltage circuit loop connects the expansion valve, which characteristic is: the pressure relief valve connects between the high-pressure circuit and the low voltage side of the compressor; the input of the pressure relief valve connects to the input of the reservoir in the high pressure loop, the output of pressure relief valve connects to the ...

Preparation method of carboxyl-terminated bromine-carbon polyester resin fireproof coating used in frost climate

The invention relates to a preparation method of a carboxyl-terminated bromine-carbon polyester resin fireproof coating used in the frost climate. The coating comprises the following raw materials in parts by weight: 80-90 parts of carboxyl-terminated bromine-carbon polyester resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 3-6 parts of sodium methylsilanolate, 4-7 parts of aluminium sulfate, 15-20 parts of ethylene glycol and 5-8 parts of water-soluble amide. The preparation method comprises the following steps: firstly mixing the carboxyl-terminated bromine-carbon polyester resin, triethanolamine, ethylene glycol and water-soluble amide, then adding melamine, titanium dioxide, expanded perlite and hydroxyethyl cellulose, mixing the materials to prepare primary slurry, mixing sodium methylsilanolate and aluminium sulfate, then adding the primary slurry and mixing the materials ...

Core ring sorting and grabbing system for grinding wheel production

The invention relates to a core ring sorting and grabbing system for grinding wheel production. The core ring sorting and grabbing system comprises a core ring vibrating screen, a core ring bearing frame and a core ring grabbing rack, wherein the core ring bearing frame is used for bearing core rings; the core ring vibrating screen is in conveying connection with the core ring bearing frame; a core ring grabbing device is arranged on the core ring grabbing rack; the core ring grabbing device slides above and between the core ring bearing frame and a grinding wheel forming conveying belt, and correspondingly rises or falls to grab and place the core rings. The core ring sorting and grabbing system for grinding wheel production is simple and compact in structure and free of manual operation, can automatically convey the core rings to grinding wheel forming dies on a conveying belt of a grinding wheel forming machine, has a high degree of automation, can place the core rings accurately and ...

Infrared temperature measurement sensor mounting structure compatible with different positions

The invention discloses an infrared temperature measurement sensor mounting structure compatible with different positions, which comprises a mechanism fixing frame, the mechanism fixing frame is mounted at the bottom of a microwave oven cavity, a set of ultrahigh pressure specification digestion tank or a set of high flux specification digestion tank is arranged in the microwave oven cavity, two first infrared temperature measurement holes are arranged above the mechanism fixing frame, and two second infrared temperature measurement holes are arranged above the mechanism fixing frame. Two second infrared temperature measuring holes are formed in the bottom of the microwave oven cavity and correspond to the first infrared temperature measuring holes, two sliding rods are arranged on the mechanism fixing frame in parallel, sliding blocks are arranged on the two sliding rods, the sliding blocks slide on the sliding rods, an infrared adjusting plate is arranged between the two sliding blocks ...

Fiber mesh picking and placing device

The invention relates to a fiber mesh picking and placing device which comprises a feeding device and a transfer conveying device. The feeding device and the transfer conveying device are slidably arranged on a mesh accommodating frame in such a manner that clamp columns for inner holes of meshes and vacuum suckers simultaneously correspond to a grinding wheel forming die on a die conveyor belt and a mesh transfer frame or simultaneously correspond to states of the mesh transfer frame and a mesh conveying frame.

Fiber mat gets puts device

The utility model relates to a fiber mat gets puts device, including feed arrangement and transfer material feeding unit, feed arrangement includes feeding slide, feeding guiding axle, feeding lift cylinder, and the feeding slide slides and sets up on net piece rack, and the vertical cross -under of feeding guiding axle is on the feeding slide and the horizontally connect vacuum chuck of bottom, and feeding lift cylinder is fixed to be set up on the feeding slide and flexible end connection vacuum chuck, transfer material feeding unit includes transfer pay -off slide, transfer pay -off guiding axle, transfer pay -off lift cylinder, transfer pay -off slide slides and sets up on net piece rack, the vertical cross -under of transfer pay -off guiding axle is the adapter on transfer pay -off slide and among the horizontally connect of bottom, transfer pay -off lift cylinder is fixed and is set up adapter on transfer pay -off slide and in the flexible end connection, on in the well adapter, be ...

Spindle is plucked to cotton picker

The utility model relates to a spindle is plucked to cotton picker, including bevel gear, cylinder pole and toper tip, its characterized in that: the bevel gear coaxial line is connected in cylinder pole one end, and the activity of cylinder pole other end coaxial line is cup jointed tapering point portion and is pegged graft fixedly through radial screw that sets up or pin.

Multiplex heat treatment method for enhancing wear resistance, corrosion resistance, impact resistance and fatigue resistance of quenched and tempered steel surface

The invention relates to a multiplex heat treatment method for enhancing wear resistance, corrosion resistance, impact resistance and fatigue resistance of a quenched and tempered steel surface, belonging to the field of surface engineering. The method comprises the following steps: hardening and tempering the material 37CrNi3MoV until the strength Rp0.1 is greater than or equal to 1140 MPa; nitriding, wherein the depth of nitration is 0.25-0.35mm, and the hardness is 650-750HV; and carrying out laser quenching, wherein the depth of hardening is greater than or equal to 1.0mm, and the hardness is higher than 750 HV. The quenched and tempered steel surface is reinforced by a nitriding/high-density energy laser beam quenching multiplex heat treatment method, so that the part has the advantages of higher strength and dimensional accuracy, favorable wear resistance and favorable corrosion resistance, and enhances the high-frequency impact loading capacity of the local part to satisfy the technical ...

Core ring sorting, grasping and fixing tool used in grinding wheel production

The invention relates to a core ring sorting, grasping and fixing tool used in grinding wheel production. The core ring sorting, grasping and fixing tool comprises a rotation cylinder, a rotation disc and two core ring support columns, wherein the rotation cylinder is arranged on a core ring taking and placing connecting plate; the rotation cylinder is used for rotationally driving and supporting the rotation disc; the two core ring support columns are symmetrically and vertically arranged on the rotation disc, and are respectively correspond to a core ring grasping device and a core ring vibration screen; two core ring guide shafts are symmetrically arranged by taking the core ring support column corresponding to the core ring grasping device as a center.

Surface treatment method for functional filling material nanometer calcium carbonate

The invention discloses a surface treatment method for a functional filling material nanometer calcium carbonate. The surface treatment method comprises the main steps: mixing nanometer calcium carbonate filter cakes subjected to filtering and squeezing with stearic acid according to a ratio, continuously sending to a double-blade dryer by a spiral feeding machine, and taking heat-conductive oil as the heating medium. Through the rotation of the blades of the double-blade dryer, a material is overturned, stirred and mixed, and is fully heated, when the material is subjected to drying, the coating agent stearic acid is melt and the surface of calcium carbonate particles is uniformly coated by the coating agent, so that material drying and surface treatment are synchronously performed. A powder discharged from the material outlet of the double-blade dryer is sieved by an air-flow sieve, so that the functional filling material nanometer calcium carbonate product is obtained.

Fiber mat gets puts transfer material feeding unit

The utility model relates to a fiber mat gets puts transfer material feeding unit, including transfer pay -off slide, transfer pay -off guiding axle, transfer pay -off lift cylinder and net piece hole card post, transfer pay -off slide slides and sets up on net piece rack, the vertical cross -under of transfer pay -off guiding axle is the adapter on transfer pay -off slide and among the transfer pay -off guiding axle bottom horizontally connect, transfer pay -off lift cylinder is fixed to be set up on transfer pay -off slide, adapter in the flexible end connection of transfer pay -off lift cylinder, on in the well adapter, be provided with respectively down on the net piece, lower baffle, net on baffle net piece hole card post of a slip cross -under back taper platform structure under the piece, on the net piece hole card post, the lower limit is located the net piece, down between the baffle.

Core ring sorting and grasping device used in grinding wheel production

The invention relates to a core ring sorting and grasping device used in grinding wheel production. The core ring sorting and grasping device comprises a grasping sliding base, grasping guide shafts, a grasping lifting cylinder and a core ring sucking disc, wherein the grasping sliding base is arranged on the core ring grasping rack; the grasping lifting cylinder is arranged on the grasping sliding base; two grasping guide shafts are vertically connected with the grasping sliding base in a sliding penetration manner; the cylinder piston rod of the grasping lifting cylinder is connected with the two grasping guide shafts; the bottom ends of the two grasping guide shafts are connected with the core ring sucking disc.

Carboxyl-terminated bromine-carbon polyester resin fireproof coating used in marine climate and preparation method

The invention relates to a carboxyl-terminated bromine-carbon polyester resin fireproof coating used in the marine climate and a preparation method. The coating comprises the following raw materials in parts by weight: 80-90 parts of carboxyl-terminated bromine-carbon polyester resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 3-6 parts of sodium methylsilanolate and 4-7 parts of aluminium sulfate. The preparation method comprises the following steps: firstly mixing the carboxyl-terminated bromine-carbon polyester resin and triethanolamine, then adding melamine, titanium dioxide, expanded perlite and hydroxyethyl cellulose, mixing the materials to prepare primary slurry, mixing sodium methylsilanolate and aluminium sulfate, then adding the primary slurry and mixing the materials, finally melt-extruding the mixture with an extruder, and grinding the product in sequence, thus ...

Electric dehydration device

The invention provides an electric dehydration device. The electric dehydration device comprises two electrodes, namely a positive electrode and a negative electrode, wherein the positive electrode is constituted by titanium coated with a coating selected from the following group: platinum, iridium oxide, ruthenium oxide, tantalum oxide or the combination thereof. The electric dehydration device provided by the invention can be used for solving the corrosion problem of the positive electrode and simultaneously improving the dehydration performance of the electric dehydration device.

Freezing weather end carboxyl bromine carbon polyester resin fire-retardant coating and preparation method thereof

The invention relates to a freezing weather end carboxyl bromine carbon polyester resin fire-retardant coating and a preparation method thereof. The freezing weather end carboxyl bromine carbon polyester resin fire-retardant coating consists of the following raw materials in parts by mass: 80-90 parts of end carboxyl bromine carbon polyester resin, 3.5-4 parts of triethanolamine, 10-15 parts of melamine, 5-10 parts of titanium dioxide, 8-14 parts of expanded perlite, 8-12 parts of hydroxyethyl cellulose, 3-6 parts of sodium methylsilanolate, 4-7 parts of aluminum sulfate, 15-20 parts of ethylene glycol and 5-8 parts of water-soluble amide. The preparation method comprises the following steps: firstly mixing the end carboxyl bromine carbon polyester resin with triethanolamine, ethylene glycol and water-soluble amide, then adding melamine, titanium dioxide, expanded perlite and hydroxyethyl cellulose, mixing to prepare primary pulp, mixing and blending sodium methylsilanolate and aluminum ...

Fixed frock of core ring is picked in letter sorting of emery wheel production core ring

The utility model relates to a fixed frock of core ring is picked in letter sorting of emery wheel production core ring, including revolving cylinder, rotary disk and two core ring bearing posts, revolving cylinder set up in get put core linkage fishplate bar on, revolving cylinder rotary driving supports the rotary disk, two core ring bearing post symmetries set up on the rotary disk perpendicularly.

Production method of inner spiral spline sleeve

The invention relates to a production method of an inner spiral spline sleeve, and belongs to the field of machining. The method includes assembling, namely placing a splined portion of a spline shaft into a sleeve and positioning through pins; welding, namely welding the spline shaft and the sleeve integrally, and performing spot welding on tails of the pins and the sleeve and polishing; forming, namely milling the portion of the spline shaft with the diameter smaller than the bottom diameter of splines, retaining spline blocks, and producing parts meeting requirements on size and technology of inner spiral splines. The inner diameter of the sleeve is equal to the large diameter of the inner spiral splines, the outer diameter of the sleeve is equal to the outer diameter of the inner spiral spline parts, the outer diameter of the spline shaft is equal to the inner diameter of the sleeve, and the bottom diameter of the spline shaft is equal to the small diameter of the inner spiral splines ...

Fiber mesh taking, placing and feeding device

The invention relates to a fiber mesh taking, placing and feeding device which comprises a feeding sliding base, a feeding guide shaft, a feeding lifting cylinder and a vacuum sucking disc, wherein the feeding sliding base is arranged on a mesh holding rack in a sliding manner; the feeding guide shaft is vertically connected with the feeding sliding base in a penetrating manner; the bottom end of the feeding guide shaft is horizontally connected with the vacuum sucking disc; the feeding lifting cylinder is fixedly arranged on the feeding sliding base; the telescopic end of the feeding lifting cylinder is connected with the vacuum sucking disc.