108results about How to "Avoid explosion risk" patented technology

The invention relates to a stirring friction extrusion solid phase additive deposition layer edge precision control device and method, and belongs to the technical field of additive manufacturing, the stirring friction extrusion solid phase additive deposition layer edge precision control device comprises a hollow stirring head, the hollow stirring head can rotate, and a through hole is formed in the central axis of the hollow stirring head and used for filling raw materials; the periphery of the hollow stirring head is sleeved with four split type sleeves, and the four split type sleeves can independently move up and down respectively. According to the method, side wall forming of the additive layer is limited, generation of burrs, the arc-shaped side wall and semi-cylindrical materials at the two ends of the additive layer is restrained, and therefore the follow-up cutting amount is reduced, and near-net forming of components is achieved; by limiting the plasticized material to flow to the periphery, the additive layers at the center and the edge are more compact, and the mechanical properties of the whole additive layers and the side wall part are improved; and multi-layer material adding in the vertical plane and multi-channel material adding in the horizontal plane can be achieved, accurate forming of the side wall can be achieved under the condition that the device is not replaced, and the flexibility of the device is improved.

The present invention relates to a device and method for controlling the edge precision of a stir friction extrusion solid-phase additive deposition layer, which belongs to the field of additive manufacturing technology, and includes a hollow stirring head, which can rotate, and a through hole is arranged at the central axis thereof for filling raw materials; four split sleeves are sleeved around the hollow stirring head, and the four split sleeves can move up and down independently. The present invention restricts the side wall forming of the additive layer, suppresses the generation of flash, arc-shaped side walls and semi-cylindrical materials at both ends of the additive layer, thereby reducing the subsequent cutting amount and achieving near-net forming of the component; by restricting the flow of plasticized material to the surroundings, the additive layer at the center and the edge is made denser, and the mechanical properties of the additive layer as a whole and the side wall are improved; it can realize multi-layer additives in the vertical plane and multi-pass additives in the horizontal plane, and can also realize precise forming of the side wall without changing the device, thereby improving the flexibility of the device.

The invention relates to the technical field of zinc powder manufacturing equipment, and particularly discloses a continuous production inert zinc powder atomization preparation device which comprises an atomization furnace, the bottom of the atomization furnace fixedly communicates with communicating pipes, and the two communicating pipes are connected with a large grading system and a small grading system correspondingly. Wherein one ends, far away from the atomizing furnace, of the large grading system and the small grading system are fixedly communicated with a balance tank. Molten zinc can be preliminarily refined when passing through the flow guide holes under the action of pressure intensity, finally enters the polymerization groove in the polymerization base and is differentiated again through the flow diffusion holes communicated with the polymerization groove, the molten zinc can be differentiated into trickles in a multi-stage mode through the multi-stage differentiation mechanism, the trickles can be more evenly distributed in the atomization chamber, and therefore the atomization effect is improved. By means of the technical scheme, the contact area between atomized gas and the liquid zinc is larger and more uniform, the situation that local liquid zinc is too much or too little is avoided, it is ensured that each part of liquid zinc can be fully and stably atomized, zinc powder with more uniform particle size is produced, and the product quality is improved.

The utility model belongs to a refrigerator motor junction box protection device in the technical field of refrigerators. Comprising a junction box body (1), the top of the junction box body (1) is communicated with the lower end of an air inlet pipeline (2), the bottom of the junction box body (1) is communicated with one end of an exhaust pipeline (3), the upper end of the air inlet pipeline (2) is communicated with a nitrogen supply component (4), and the other end of the exhaust pipeline (3) is communicated with a nitrogen recovery component (5). According to the refrigerator motor junction box protection device, the condensation phenomenon in the junction box is avoided, the explosion risk caused by the short circuit of the outgoing line insulating sleeve is avoided, the failure rate is reduced, the equipment safety is improved, the replacement cost caused by the short circuit fault of the motor junction box is saved, and the cost is reduced.

The invention belongs to the field of lithium ion batteries, and discloses a preparation method of lithium slurry and a product and application thereof, the preparation method of the slurry comprises the following steps: using a mixed organic solvent formed by mixing an etching agent and a passivating agent, dispersing a material containing lithium metal in the mixed organic solvent, and preparing the lithium slurry. According to the method, an etching agent is used for etching grain boundaries in a material containing lithium metal, a passivating agent is used for passivating grain surfaces, so that slurry containing stable micron-scale and / or nano-scale lithium-containing particles is obtained, and the etching agent and the passivating agent are selected from specific organic solvents. According to the invention, the organic solvent is adopted to carry out etching and passivation reaction on the material containing the lithium metal to obtain the slurry containing the lithium particles, and the particle size is uniform and controllable. The slurry containing the lithium particles can be used for electrode pre-lithiation and preparation of a lithium metal-based electrode and a lithium-based solid-state electrode, so that the energy density of a lithium secondary battery is improved, and the cycle life of the lithium secondary battery is prolonged.

The invention relates to the technical field of lithium iron phosphate batteries, in particular to a digital control energy conversion type lithium iron phosphate battery for information communication. Comprising a shell, the shell is fixedly connected with battery cabins which are symmetrically distributed, the battery cabins are fixedly connected with end covers, the battery cabins are fixedly connected with a plurality of groups of heat dissipation partition plates which are uniformly distributed, the heat dissipation partition plates in the same group are jointly and fixedly connected with battery units which are uniformly distributed, the battery cabins are fixedly connected with first electric push rods which are symmetrically distributed, and the battery cabins are fixedly connected with second electric push rods which are symmetrically distributed. And the telescopic end of the first electric push rod is in limited sliding connection with a reinforced cooling piece, and the reinforced cooling piece comprises a bottom fin group, a middle fin group, middle heat dissipation plates and a top fin group which are fixedly connected with one another, and the middle heat dissipation plates and the top fin group are uniformly distributed. The battery unit with a compact structure is subjected to enhanced heat dissipation through the enhanced cooling piece, and whether the adjacent battery units are expanded or not is detected by controlling the enhanced cooling piece to move, so that the risk of explosion of the battery units is avoided.

The invention discloses a device and a method for testing mechanical properties of a micro sample in a high-temperature and high-pressure hydrogen environment, and belongs to the technical field of testing of mechanical properties in a hydrogen environment, the device comprises a temperature control system, a hydrogen-present micro sample clamp, a high-pressure hydrogen circulating system and a mechanical loading system, a gas standing cavity is arranged in the hydrogen-present micro sample clamp, and the gas standing cavity is of an inverted T-shaped gas passage structure; the upper opening of the gas standing cavity is used for placing a sample, and the openings at the two ends of the gas standing cavity are respectively connected with a high-pressure hydrogen circulating system through pipelines, so that high-pressure hydrogen can circularly flow, the concentration of the hydrogen in contact reaction with the sample is maintained in a stable range, and the volume of the hydrogen in the gas standing cavity is relatively small; the use cost and the explosion risk are effectively reduced, meanwhile, the temperature rising speed is increased, in addition, hydrogen only makes contact with the gas standing cavity and does not make contact with other positions of the hydrogen-containing micro-sample clamp, the contact reaction area is small, and the service life of the hydrogen-containing micro-sample clamp is effectively prolonged.

The invention provides an anti-burst self-locking flat gate valve and relates to the technical field of flat gate valves, the anti-burst self-locking flat gate valve comprises a main valve body, an inner lifting valve piece, inner sealing rings and sealing valve plates, the inner lifting valve piece is vertically and slidably arranged on the inner side of the main valve body, the inner sealing rings are arranged on the two sides of the middle of the main valve body, and the sealing valve plates are arranged on the two sides of the upper portion of the inner lifting valve piece; an outflow pipe and an inflow pipe are arranged on the two middle sides of the main valve body in a communicating mode respectively, a lower valve body cavity is formed below the main valve body, a middle sealing sliding column is fixedly arranged on the inner side of the lower valve body cavity, and an outer communicating pipe is fixedly arranged on the side face of the main valve body. When the valve plate moves to be opened or closed, the inner lifting valve piece presses liquid in the valve body cavity downwards to flow outwards to the outflow pipe towards the outer communicating pipe, the pressure of the outflow pipe is smaller than that of one side of the inflow pipe, the situation that resistance of downward movement of the inner lifting valve piece is increased is reduced, and the problem that when the valve plate moves to be opened or closed, liquid in the valve plate storage cavity needs to be pressed outwards, and the valve plate is damaged is solved. And the moving resistance of the valve plate is increased.

The invention provides an array type micro-premixing combustor. The array type micro-premixing combustor comprises a premixing assembly, a gas supply part and a combustion chamber assembly. The premixing assembly comprises a shell and a premixing pipe array, the premixing pipe array comprises a first mounting plate, a partition plate and at least one fuel premixing pipe with one end open, the first mounting plate and the partition plate are connected with the fuel premixing pipe, and the partition plate is located in the middle of the fuel premixing pipe. At least one fuel gas inlet communicated with the fuel cavity is formed in the gas supply part; the combustion chamber assembly is connected with the premixing assembly, the combustion chamber assembly and at least one part of the premixing assembly jointly define a combustion cavity with an opening in one end, and an opening of the fuel premixing pipe communicates with the combustion chamber. According to the array type micro-premixing combustor, the tempering phenomenon during combustion of hydrogen-rich / pure hydrogen fuel can be effectively prevented, the working stability of the micro-premixing combustor is improved, meanwhile, the hydrogen / air mixing uniformity of a nozzle of the micro-premixing combustor is improved, NOx emission is effectively reduced, and the safety and low emission of combustion of the hydrogen-rich / pure hydrogen fuel are improved.

The invention discloses an annular sample expansion loading method based on instantaneous spalling, and relates to the technical field of deformation and fracture characteristic measurement of materials under dynamic loading. A loading system adopted by the method comprises a test frame, an instantaneous spalling air cylinder device, an inflatable airbag body, a detonating device, an annular sample and spalling agents, the spalling agents comprise rice hulls / coal gangue and combustion improvers, the spalling agents are arranged in a first air cylinder body and a second air cylinder body, and the spalling agents are connected with the detonating device. The loading method comprises the following steps: inflating the air bag main body, and stopping inflating when the pressure of the air bag main body reaches 240-250kPa; the detonating device is started, the spalling agent is excited by current and is converted into gas from solid in a short time, pressure is generated to drive the air bag body to expand, and then the annular sample is loaded. According to the invention, experimental errors caused by too high temperature rise of the sample and stress wave effect are avoided, and a more accurate loading effect is realized.

The invention discloses an intelligent emulsion pump station, and relates to the technical field of emulsion pump stations, the intelligent emulsion pump station comprises a base, the top surface of the base is fixedly provided with a box body, the surface of the base is fixedly provided with an emulsion pump, the output end of the emulsion pump is provided with a connecting pipe A, and the output end of the emulsion pump is provided with a connecting pipe B; a water tank is fixedly mounted on the top surface of the box body, an emulsified oil tank is fixedly mounted in the box body, and a water pump is fixedly mounted on the top surface of the box body; according to the device, emulsified oil leaked from the emulsified oil tank and the connecting pipe B is stored through the oil storage tank, so that fire or explosion caused by leakage of the emulsified oil is prevented, the emulsified oil tank is protected through opening and closing of the baffle, and the situation that the emulsified oil tank is damaged due to collision is avoided; and meanwhile, the scraping plate A and the scraping plate B are driven to clean the oil storage tank, and emulsified oil at the leakage position is discharged from the oil storage tank and the oil discharging tank.

The invention discloses a side-suction oxygen-free medium-temperature pyrolysis furnace, comprising a pyrolysis furnace, a grate is arranged in the pyrolysis furnace, a feed port is arranged at the pyrolysis furnace above the grate, a closed feeder is arranged at the feed port, a discharge port is arranged at the pyrolysis furnace below the grate, a closed discharger is arranged at the discharge port, and an oxygen-free medium-temperature gas source mechanism is arranged outside the pyrolysis furnace and supplies flue gas to the pyrolysis furnace, the oxygen-free medium-temperature gas source mechanism comprises a burner, the inlet of the burner is connected to an input pipeline for supplying gas to the burner, the outlet of the burner is connected to a flue gas output pipeline, the flue gas delivery pipeline is introduced into the pyrolysis furnace and is located below the grate; the pyrolysis furnace is provided with a combustible gas collection mechanism at the side wall located above the grate, forming a side-suction structure. The invention effectively ensures that the biomass in the pyrolysis furnace is at the optimal precipitation temperature for separating out combustible gas, and at the same time avoids the risk of explosion caused by the formation of gas pockets of combustible gas in the pyrolysis furnace.

The invention relates to the technical field of goaf fire monitoring, in particular to a monitoring device for goaf fire after gas-liquid two-phase flow prevention and drainage. The invention provides a gas-liquid two-phase flow control post-drainage goaf fire monitoring device which can reduce the concentration of inflammable gas in a goaf and avoid potential fire and explosion risks. A gas-liquid two-phase flow control post-drainage goaf fire monitoring device comprises a mounting block, clamping plates, threaded rods and the like, the left and right parts of the mounting block are slidably connected with the clamping plates, and the upper sides of the left and right parts of the mounting block are rotatably connected with the threaded rods. When the gas detector monitors that the concentration of inflammable gas in the goaf is high, water is fed into the water storage cylinder through the water receiving pipe, then the water is atomized and sprayed out through the spray head, the inflammable gas is diluted and cooled through water mist, and the effects that the concentration of the inflammable gas in the goaf can be reduced, and potential fire and explosion risks are avoided are achieved.

This invention discloses a middle plate, an electrode chamber assembly, and an electrolytic hydrogen production device. The middle plate includes a body and a circulation plate. The body is integrally stamped from a metal plate. An S-shaped annular sealing channel is stamped around the perimeter of the body surface. Several first protrusions and second protrusions are stamped on two surfaces of the body inside the annular sealing channel. The circulation plate is inclined and fixedly connected to the first protrusions. The circulation plate is disposed within the annular sealing channel, and the distance between its top edge and the body surface is less than the distance between its bottom edge and the body surface. The electrode chamber assembly is assembled using the aforementioned middle plate, and the electrolytic hydrogen production device utilizes the aforementioned electrode chamber assembly. This invention provides excellent sealing performance. The stamped structure integrating the anode and cathode chambers and the middle plate effectively reduces leakage points and lowers the risk of external leakage. Furthermore, it reduces spot welding processes, lowers internal contact resistance, and thus reduces the energy consumption of the electrolyzer. The above structure is rationally configured and easy to install.

The invention belongs to the technical field of polyphenyl ether polymerization reaction, particularly relates to a polyphenyl ether polymerization reaction process, and provides the following scheme aiming at the problems that stirring is needed in the polyphenyl ether polymerization reaction in the prior art, the explosion risk is easily caused by stirring in a polymerization sleeve, the tail gas treatment effect is poor, and air pollution is caused by emission. The method comprises the following steps: S1, preparing reaction equipment and raw materials; the reaction equipment comprises a catalyst batching kettle, a catalyst metering pump, a raw material batching kettle, a raw material conveying pump, a polymerization sleeve reactor, a tail gas cooler, a gas-liquid separation tank, an extraction tower feeding pump, a turntable extraction tower and a tail gas processor. No stirrer is arranged in the polymerization sleeve reactor, the explosion risk of materials caused by mechanical friction of the stirrer is completely eradicated, tail gas is sequentially subjected to cooling, acid-base neutralization reaction and peculiar smell removal treatment, the tail gas can be further treated, and air pollution is avoided.

The utility model relates to the technical field of calendering forming machine, specifically is a kind of sealing ring calendering forming machine of rubber material, including machine body, still include: press roll transmission mechanism, press roll transmission mechanism includes two first roller and second roller for being used to extrude rubber material and being rotationally arranged in machine body inside, first roller and second roller are driven by gear mechanism cooperation, first roller is synchronous reverse rotation by gear mechanism when driving second roller rotates;Dust absorption structure, dust absorption structure includes the multiple dust suction nozzles of being arranged in the above of first roller in machine body interior, dust suction nozzle is used to absorb the dust and volatile material released in the rubber material calendering process, the utility model can release the micron level dust particles of large amount of dry rubber material under roller extrusion in calendering process in time absorption, and after purification filtration, it is discharged to outside again, avoid the risk of combustion and explosion of particle aggregation existence, simultaneously avoid the problem of harm worker respiratory system health.

The utility model provides a lithium battery shell stripping device, which relates to the technical field of lithium batteries and comprises an operation table, a cutting mechanism is arranged at the top of the operation table, a waste water recovery assembly is connected to the surface of the operation table and comprises a water drainage hole and a water tank, the water drainage hole is formed in the surface of the operation table, and the water tank is connected with the cutting mechanism. A water tank is connected to the position under the drainage hole, a mounting groove is formed in the front surface of the water tank, and a magnet is arranged in one side of the mounting groove. According to the lithium battery cutting device, when a lithium battery is cut, the water pump can be started to pump out a water source in the water tank and spray water to the lithium battery through the spray head, so that the effects of cooling, dust prevention and the like are achieved, the sprayed water source flows into the water tank again through the drainage hole, impurities are filtered through the filter screen, and the water source is recycled; the problem that an existing water source using mode is wasted is solved, and unnecessary economic losses are avoided.

The application relates to the technical field of packaging materials, and discloses an antistatic aluminum plastic film, a preparation method and application in lithium battery packaging, wherein the antistatic aluminum plastic film is prepared by dry compounding of an outer nylon film, an intermediate aluminum foil layer and an inner polyethylene composite film; the polyethylene composite film is composed of 60-80 wt% of metallocene linear low-density polyethylene resin and 20-40 wt% of carbon black-graphene polyethylene composite masterbatch; the carbon black-graphene hybrid particle contains an alkenyl functional group on the surface, and a free radical addition grafting reaction occurs between the linear low-density polyethylene resin and the carbon black-graphene polyethylene composite masterbatch through the action of an initiator; and the carbon black-graphene hybrid particle is prepared by Schiff base reaction of a dialdehyde alkenyl functional modifier and amino-functionalized carbon black and amino-functionalized reduced graphene oxide. The aluminum plastic film prepared by the application has excellent antistatic performance, heat sealing performance and barrier performance, and is used for packaging of lithium iron phosphate powder which is a positive electrode material of a lithium battery.

This invention discloses a device for receiving molten crude tin, replacing a foreboard, comprising: a converter; a feed inlet at the top of the converter, a discharge outlet on the side wall of the converter, a carbon brick lining, a steam jacket covering the outer wall of the converter, and a burner at one end of the converter; the steam jacket has a steam inlet and a steam outlet, with the steam inlet positioned higher than the steam outlet; the discharge outlet is a circular hole, extending outwards into a U-shaped short chute on the side wall of the converter, the diameter of the semicircular arc of the U-shaped short chute being the same as the diameter of the discharge outlet hole, and a retaining groove on the side of the U-shaped short chute closest to the side wall of the converter, on which a slag-blocking plate can be detachably installed. This invention's device can replace a foreboard for receiving molten crude tin in a safe, efficient, and environmentally friendly manner.

The utility model relates to a tank type explosion-proof electric heater, which belongs to the technical field of electric heaters and comprises a heating tank body, a tubular electric heater main body, a first explosion-proof partition plate, a sealing tank cover, an electric heater cable and a high-temperature-resistant remote-transmission magnetic turning plate liquid level meter, and the heating tank body is provided with a second explosion-proof partition plate. According to the utility model, the U-shaped electric heating tube of the tubular electric heater main body is inserted into the heating tank cavity, the first anti-explosion partition plate and the second anti-explosion partition plate are connected, and the first anti-explosion partition plate and the second anti-explosion partition plate can be combined to separate the anti-explosion isolation cavity and the heating tank cavity, so that electric sparks can be physically isolated, and a steam permeation path can be blocked; the explosion propagation path is blocked through the cavity dividing design, nitrogen is introduced into the explosion-proof isolation cavity through the one-way air inlet valve, the junction box end and the wiring position of the tubular electric heater body can be sealed in the nitrogen inert environment, the inert environment eliminates the possibility of electric spark ignition, and the explosion risk caused by electric spark ignition is avoided. Therefore, the explosion-proof performance of the tank type electric heater can be further improved.

The utility model discloses a kind of explosion-proof fan, including the casing of three-layer composite explosion-proof resin material and wind wheel, wherein outer layer carbon nanotube PEEK composite material effectively leads out static electricity, middle aluminium hydroxide flame-retardant layer prevents flame spread, inner layer ultra-high molecular weight polyethylene reduces friction spark risk.Electrostatic belt can effectively eliminate static electricity accumulation in transmission process, avoid static spark, improve explosion-proof safety.Fan is equipped with rotary electrostatic brush and ground copper wire to eliminate static electricity, and fire barrier is configured at air inlet to prevent flame propagation.Wind wheel blade is provided with tungsten-containing wear-resistant coating and zircon ceramic wear-resistant strip to avoid friction spark.Explosion-proof motor is built-in temperature sensor and vibration sensor, and stator winding adopts arc-resistant enameled wire.The utility model solves the problem of heavy weight and single protection of traditional fan through multiple explosion-proof design, with the characteristics of lightweight, superior explosion-proof performance, stable and reliable operation, especially suitable for flammable and explosive places such as petroleum and chemical industry.

The utility model provides a kind of gas taking device, butt joint gas relay, the gas in gas relay is safely released and sampled, including oil storage unit, exhaust unit, fluid conveying unit, gas collection unit and gas taking unit;Wherein, the fluid of the oil storage unit is input and output to exhaust unit;The fluid conveying unit, fluid in exhaust unit is input or output gas collection unit;The gas collection unit, collect gas from inside gas relay;The gas taking unit, collect gas from inside gas collection unit.It can efficiently, safely realize gas taking.

The utility model relates to the technical field of vinyl chloride production drainage, concretely is automatic closed drainage device of vinyl chloride gas cabinet water separator in calcium carbide method production process, including water separator, closed drainage jar and waste water conveying component, one side of water separator is detachably connected with import sounding tube, the other end of import sounding tube is provided with water separator import pipeline, the bottom of water separator is detachably connected with first drainage pipeline, the other end of first drainage pipeline is detachably connected with the outer surface of closed drainage jar, the upper end of closed drainage jar is provided with balance pipeline, the other end of balance pipeline is detachably connected with the upper end of water separator. The automatic closed drainage device of vinyl chloride gas cabinet water separator in calcium carbide method production process, through water separator physical separation vinyl chloride gas moisture, closed drainage jar stores up waste water and prevents VC, acetylene volatilization, waste water conveying component automatically transports the waste water after filtration to downstream, solves the problem that the existing process relies on manual inspection drainage, waste water direct discharge pollutes the environment.

The utility model discloses an electric heat shrinkable sleeve heating device which comprises a handheld grab handle, a power line is connected to the right end position of the handheld grab handle, a rotatable plate is connected to the inner position of a threaded cylinder in a sleeved mode, an electric heating wire is adopted for heating, explosion and fire risks possibly caused when open fire exists are avoided, and the electric heat shrinkable sleeve heating device is convenient to use. The safety of a working place is greatly improved, a worker can easily control the heating work by holding the grab handle, the heating temperature and time can be accurately controlled, the heating effect and quality of the thermal shrinkage belt are ensured, and compared with a traditional burning heating mode, the electric heating wire heating mode is more environmentally friendly, harmful gas and smoke dust cannot be generated, meanwhile, more energy is saved, and the working efficiency is improved. The device adopts an external 220V alternating current power supply, is simple and convenient to operate, does not need special fuel or equipment, reduces the operation difficulty of constructors, and can effectively avoid electric shock accidents and guarantee the personal safety of the constructors due to the fact that the device is subjected to electric leakage protection.

The utility model provides a kind of explosion-proof and leakage-proof shell structure of solid capacitor, including shell, shell includes lower shell and upper shell, the bottom of lower shell is provided with the base that is outwardly convex, for stabilizing shell, the outer side of lower shell is fixedly connected with protective strip, lower shell bottom upper end surface is provided with pin protection sleeve, the top inner wall of lower shell is fixedly connected with inboard edge strip, the upper end surface of inboard edge strip is provided with guide hole, the lower end surface of upper shell is fixedly connected with guide column;Lower shell is provided with mounting assembly inside, for installing solid capacitor.The utility model sets up heat dissipation hole on upper shell, cooperate lower shell heat dissipation cavity, heat is dissipated immediately, prevent the risk of bulging and explosion caused by internal pressure sudden rise;Lower shell bottom is provided with pin protection sleeve, positive and negative pole pin is inserted into protection sleeve, avoid pin skew, misplacement, while pin protection sleeve provides external support for pin, prevent pin from shaking after welding.

The invention belongs to the technical field of scraper conveying equipment, and particularly relates to a movable scraper conveyor which comprises a scraper chain assembly and a conveyor body, a support is fixedly connected to the bottom end of the conveyor body, universal wheels are installed at the four bottom ends of the support, and a PLC is fixedly connected to the outer wall of the support. The working stability of the movable type scraper conveyor can be effectively improved, the situation of material conveying errors is avoided, then the material conveying reliability is improved, the conveyor has the material humidity detection function, wet materials on the scraper chain assembly can be accurately recognized and cleaned, the material conveying speed is increased, and the conveying efficiency is improved. In addition, in the dry material conveying process, the conveyor further has the functions of collecting dust materials and removing static electricity, the conveying efficiency and the safety coefficient are powerfully improved, and the conveyor can convey materials more efficiently and reliably.

The utility model discloses an activated carbon feeding blowout preventer, and belongs to the technical field of environmental protection equipment. The activated carbon feeding blowout prevention device is used for preventing activated carbon from being sprayed out from a first ventilation opening and comprises a buffer cylinder and a ventilation assembly, the buffer cylinder is arranged at the first ventilation opening, one end of the buffer cylinder communicates with the first ventilation opening, a second ventilation opening is formed in the other end of the buffer cylinder, and the ventilation assembly is arranged at the second ventilation opening and comprises a spring rod and a sealing plug. One end of the spring rod is connected to the buffer cylinder, the sealing plug is connected to the other end of the spring rod, and the spring rod is arranged in the direction parallel to the axis of the second ventilation opening. The activated carbon feeding blowout preventer can prevent activated carbon from polluting site air and harming personnel health, and the risk of explosion is avoided.

The invention relates to the technical field of fuel cells, in particular to a fuel cell hydrogen recovery system and method. An anode outlet of the galvanic pile module is connected with a system water segregator, an outlet of the system water segregator is connected with a water inlet and outlet valve through a hydrogen inlet pipe, an outlet of the water inlet and outlet valve is connected with an inlet of an exhaust water diversion area, an outlet of the exhaust water diversion area is divided into two paths to be connected with a water outlet and outlet valve and a hydrogen drying area respectively, and an outlet of the water outlet and outlet valve is connected with a water outlet. An outlet of the hydrogen drying area is connected with an exhaust hydrogen storage bottle through a hydrogen bottle opening electromagnetic valve. Compared with the prior art, the hydrogen discharged from the water outlet of the water segregator in the fuel cell system is recycled, and the hydrogen at the water outlet is hydrogen except a large amount of water, so that the conditions of complex gas composition and difficult gas control caused by mixing of hydrogen and air at the tail discharge outlet in the existing fuel cell system scheme are avoided.

The utility model relates to the technical field of water removal of water-containing solid waste, and discloses high-speed continuous mixing equipment which comprises a machine body, the machine body is provided with a feeding port and a discharging port which are located at the two ends of the machine body, a plurality of feeding ports used for adding materials are further formed along the machine body, and a main shaft is arranged in the machine body and connected with a driving device. The main shaft is provided with a plurality of first blades arranged in the axial direction, the first blades rotate along with the main shaft to be used for conveying and stirring materials, the main shaft is further provided with a plurality of second blades arranged in the axial direction, and the second blades rotate along with the main shaft to be used for stirring the materials. According to the high-speed continuous mixing equipment, water-containing solid waste is added from the feeding hole, calcium oxide enters the machine body from the charging holes, and the charging holes can be selected according to the reaction speed of the water-containing solid waste and the calcium oxide, so that the mixing and stirring operation is completed before a large amount of high-temperature and high-humidity dust-containing gas is generated, and the explosion risk is avoided.

The present invention belongs to the field of pharmaceutical and chemical technology, and specifically refers to a barreled feeding device for toxic or corrosive liquids, including a sealed box, a volatilization overflow prevention mechanism, a quantitative feeding mechanism, an auxiliary mechanism and a sealing mechanism, wherein the volatilization overflow prevention mechanism is arranged inside the sealed box, the quantitative feeding mechanism is arranged on the inner side wall of the sealed box, the auxiliary mechanism is arranged on the inner side wall of the sealed box, and the sealing mechanism is arranged on the side wall of the sealed box. The present invention is provided with a gas cleaning mechanism, controls the electric-controlled three-way valve, uses nitrogen to purge liquid through the air inlet pipe, and enters the transfer barrel, purges the toxic gas volatilized from the liquid inside the overflow prevention cylinder and the transfer barrel, and discharges the sealed box through the sewage pipe into the external waste gas treatment system, thereby achieving the technical effect of cleaning the contact parts with toxic and corrosive liquids and preventing the toxic liquids from volatilizing and overflowing, and effectively solves the technical problems of toxic or corrosive liquid residue and volatilization in the prior art.