69results about How to "Avoid entrainment" patented technology

The invention discloses a system and a method for separating ammonia, ethanolamine and water, which belong to the technical field of ammonia still separation, and are characterized in that a shell-and-tube heater is arranged in a flash tank, a reactor a and a reactor b are respectively arranged on two sides of the flash tank, the reactor a is communicated with the flash tank through a pipeline a, the reactor b is communicated with the flash tank through a pipeline b, and the reactor b is communicated with the flash tank through a pipeline b. The problems that separation is difficult, the separation cost is high and the operation period is short are solved, the problems that an existing plate tower is low in separation efficiency and high in energy consumption, silk screen filler is prone to corrosion and the operation period is short are solved, and the device is mainly applied to separation of ammonia, ethanolamine and water.

The utility model relates to the technical field of acquisition probes, and discloses a portable sampling probe which comprises a detector, a display panel is fixedly connected to the front side of the detector, a grip is fixedly connected to the bottom of the detector, a first pipeline is fixedly connected to the middle of the right side of the detector, and a second pipeline is fixedly connected to the middle of the right side of the detector. The interior of the right end of the first pipeline is movably connected with a second pipeline, the second pipeline is connected with the first pipeline through a telescopic assembly, the top of the right end of the second pipeline is fixedly connected with a collection head, and the outer wall of the right end of the second pipeline, corresponding to the exterior of the collection head, is fixedly connected with a spherical filter cover. According to the device disclosed by the utility model, the spherical filter cover can filter an extracted sample and filter particle impurities, the first motor, the first gear and the outer gear ring are matched to drive the rotating ring and the cleaning plate to rotate and clean the spherical filter cover, and the collection head can be driven to adjust through the telescopic arrangement of the second pipeline and the first pipeline, so that remote collection is facilitated.

The invention provides an H.323 video conference secure transmission system and method based on isolated transmission equipment, and relates to the technical field of data transmission. Comprising an extranet conference agent used for receiving a registration signaling of a conference calling terminal and transmitting the registration signaling to an intranet conference agent; after the conference called terminal completes registration, receiving a conference call of the conference calling terminal and transmitting the conference call to the intranet conference agent; receiving a call response and forwarding the call response to the conference call terminal; the intranet conference agent is used for receiving the registration signaling and the conference call sent by the extranet conference agent, and forwarding the registration signaling and the conference call to the called conference terminal; and receiving a call response sent by the called conference terminal, and transmitting the call response to the external network conference agent. According to the invention, high-efficiency transmission of audio and video data is realized, centralized management is carried out through a single-guide mode, and the system is suitable for scenes requiring low-delay and high-reliability audio and video transmission, such as online conferences, video live broadcast and multimedia applications.

The invention discloses a high-purity dimethyl carbonate and propylene glycol synchronous refining adjusting system and method, and relates to the technical field of high-purity dimethyl carbonate and propylene glycol synchronous refining, and the method comprises the following steps: at the beginning of a process, firstly adopting a reflux ratio regulation frequency in an initial distillation stage to quickly remove low-boiling-point impurities and establish heat balance in a tower; and when a switching process between the initial distillation stage and the refining stable stage is entered, heat balance information of the system is collected in real time. By introducing the real-time monitoring and support vector machine model, the heat balance state change is intelligently identified, the reflux ratio regulation frequency is dynamically adjusted, the gas-liquid mass transfer balance is ensured, impurity entrainment is avoided, the product purity is improved, the burden of downstream separation equipment is relieved, the energy consumption and the cost are reduced, and the heat balance of the system is quickly recovered; the production efficiency and the product reliability are remarkably improved, the whole batch of products are prevented from being scrapped, and an efficient and high-quality synchronous refining process is realized.

The utility model discloses a mould structure for preventing generation of cold shut, which comprises an upper mould core, a lower mould core, an insert and a water cooling needle, the upper mould core and the lower mould core are combined to form a product cavity after being covered, the upper mould core is provided with an assembly area, the insert is arranged in the assembly area and comprises a block body, and the lower end of the block body extends to be provided with a characteristic part. The feature part is used for forming a product deep cavity structure; the side surface of the block body is concavely provided with a vertically-through exhaust groove, the exhaust groove and the inner wall of the assembly area form an exhaust channel, the upper end of the exhaust channel is connected with an exhaust pipeline, the upper surface of the block body is concavely provided with a cooling pipeline, the cooling pipeline extends to the feature part, and the water-cooling needle is inserted into the cooling pipeline. The insert is installed on the upper mold core to form a product deep cavity structure, the exhaust groove is formed in the insert, an exhaust channel is formed by the exhaust groove and the inner wall of the assembly area, molten aluminum is promoted to rapidly enter a vertical face, meanwhile, gas in the cavity is promoted to be exhausted, and gas entrapment is avoided.

The present invention provides a horizontal direct pressure liquid die forging casting machine, including a shot mechanism, which has a shot structure, a shot oil circuit assembly, and a tilting assembly. The fixed plate is an integrally cast molded part. The shot structure is hinged to the rear side of the fixed plate. The shot structure cooperates with the shot oil circuit assembly and the servo motor pump group respectively. The tilting assembly includes a tilting oil cylinder hinged to the rear side and bottom of the frame. The oil delivery part of the tilting oil cylinder is connected to the shot oil circuit assembly. The shot oil circuit assembly is connected to the oil tank through the servo motor pump group. The control part of the shot oil circuit assembly is connected to the operating electric box. The piston rod part of the tilting oil cylinder is hinged to the shot structure. Compared with the prior art, the shot mechanism is provided, and the tilting assembly matched with the shot structure effectively avoids the air entrainment that is easily generated in the shot process due to the horizontal connection in the prior art, improves the density of the manufactured product, ensures that the product has a higher quality and a higher qualified rate, and improves production efficiency; the shot precision is high, and the product quality is improved.

The application discloses a transformer for extra-high voltage direct current transmission engineering and relates to the technical field of transformers, in particular to a transformer for extra-high voltage direct current transmission engineering. The transformer comprises a transformer body, an oil tank arranged in the transformer body, a drain valve pipe communicated with the oil tank and mounted on one side of the transformer body, a main flow guide pipe connected with one end of the drain valve pipe, and a drain valve component and a sampling mechanism arranged at two ends of the main flow guide pipe. The transformer for extra-high voltage direct current transmission engineering is provided with the sampling mechanism. When sampling, the sampling pipe body is automatically moved up to the main flow guide pipe in an arc-shaped notch opened by itself and covered by a composite sealing ring under the transmission of the lifting transmission assembly, and then the clean oil sample in the main flow guide pipe enters the inside of the sampling pipe body along the cylinder wall of the sampling pipe body in a wall layer flow, so that air is avoided from being sucked by free jet flow. In the oil inlet process, the oil pressure pushes the piston rod in the buffer assembly to move down synchronously, and the gas in the sampling pipe body is discharged through the associated second electromagnetic valve pipe, so that the detection requirement of low-bubble sampling is met.

The gas purifying and cooling device comprises a tower and an air cooler, the tower comprises a tower barrel, a plurality of sections of cooling tube bundles are arranged in the tower, a distributor is arranged above each section of tube bundle, a plurality of spray heads are arranged above the distributor, the spray heads are evenly distributed along the same circumference, and the spray heads are connected with a urine inlet; a condensate buffer cavity and a steam buffer cavity are respectively arranged outside the tower barrel, the cooling tube bundle consists of a plurality of heat exchange tubes, a horizontal tube section at the lower end of each heat exchange tube penetrates through the side wall of the tower barrel and extends into the condensate buffer cavity, and a horizontal tube section at the upper end of each heat exchange tube penetrates through the side wall of the tower barrel and extends into the steam buffer cavity; the distributor is provided with a conical collector along the periphery of the barrel, a material distribution disc is arranged in the middle of the distributor, and a conical collector is arranged in the middle of the distribution disc. The device has the beneficial effects that erosion corrosion of the heat exchange tubes is prevented, the service life of the heat exchange tubes is prolonged, the blockage problem of the heat exchange tube bundle is reduced, and the shutdown frequency is reduced.

The application provides a kitchen waste sorting device, and belongs to the technical field of waste treatment. The kitchen waste sorting device comprises a material distribution mechanism, a plurality of plastic cutting members and a double-curved-surface stirrer, and a conical material distribution hopper is provided with an inlet pipe on the side. An air flotation tank is located above the conical material distribution hopper and is in communication with the top of the conical material distribution hopper. The sidewall of the air flotation tank is provided with a discharge pipe. A plastic conveying mechanism is located below the water surface of the air flotation tank at the bottom and is located obliquely above the air flotation tank at the top. A slag discharge mechanism comprises a discharge pipe and a screw conveyor. The integrated kitchen waste sorting device can realize efficient sorting of plastic, waste oil, food residue and waste water. The waste oil and food residue can be recycled, which is conducive to the recycling of kitchen waste and the subsequent solid waste and waste water treatment.

The invention discloses a feed coarse screening and separating device and method, and belongs to the technical field of feed processing equipment. A feed coarse screening separation device comprises a frame main body and a screen arranged in the frame main body, and further comprises a material guide plate arranged at the bottom of the frame main body, located under the screen and used for receiving feed screened from the screen; a concentrated feed outlet and a coarse feed outlet are formed in the frame body, the concentrated feed outlet is opposite to the feed guide plate and used for receiving feed on the feed guide plate, and the coarse feed outlet is opposite to the screen and used for receiving feed which is not screened by the screen; feed can be repeatedly screened, mutual interference and entrainment among feed particles with different particle sizes are avoided, meanwhile, the monitoring equipment is arranged to detect the discharging speed on the discharging plate to feed back and adjust screening parameters, and therefore efficient screening is achieved.

A urea fluidized bed granulation ammonia-containing tail gas treatment device aims to solve the problems that in the prior art, a dry method and a wet method are used for urea fluidized bed granulation tail gas treatment, so that ammonia resources are wasted, a cloth bag is prone to being affected with damp to form hardening, the cloth bag replacement period is short, the consumable cost is high, the washing efficiency is low, dust and ammonia emission is not up to standard, the demisting effect is poor, and the like. The device comprises a wall plate, a top plate, a bottom plate and a device body, the interior of the device body is vertically divided into an upper layer, a middle layer and a lower layer, segmented partition plates are arranged in the upper layer and the middle layer respectively, and each layer of the upper layer and the middle layer is transversely divided into a coarse washing section, a fine washing section and an ammonia recovery section through the segmented partition plates. According to the utility model, the filling height of the filler and the wire mesh is reduced, spray liquid at the lower parts of the folded plate and the wire mesh is prevented from coalescing into a water curtain, meanwhile, tail gas bias flow caused by damage of the filler and the wire mesh in the use process is prevented, secondary entrainment can be prevented, the water consumption is small, the resistance is low, and the demisting effect is good.

This invention relates to the field of hydraulic pump testing and provides a testing platform for hydraulic pump production. The platform includes a testing bench body with multiple equidistantly arranged filter and defoaming components arranged in a built-in oil tank. Each filter and defoaming component includes a tube, with cylinders connected to both sides of the tube via lugs. Inside the tube, from top to bottom, are sequentially arranged a filter chamber and a defoaming chamber. A filter element is positioned at the center of each filter chamber. A guide tube is positioned between the outer periphery of the filter element and the inner wall of the tube. A power transmission mechanism is positioned below the guide tube to drive the guide tube to raise and lower, adjusting the filtration flow area of ​​the filter element. This allows the platform to meet the differentiated needs of high-precision filtration for small-flow pumps and stable operation with low pressure drop for large-flow pumps, effectively enhancing the platform's adaptability to various working conditions of different flow rates and models of hydraulic pumps, and greatly improving the platform's versatility and practicality.

The invention discloses an off-the-road tire tread with a three-dimensional sipe pattern structure, which comprises a central pattern block I and a central pattern block II which are alternately arranged in the circumferential direction, and shoulder pattern blocks are respectively arranged on two sides of the central pattern block I and the central pattern block II; the first central pattern block is separated from the two adjacent second central pattern blocks through a first transverse three-dimensional sipe groove and a second transverse three-dimensional sipe groove respectively, the first central pattern block and the second central pattern block are separated from the shoulder pattern blocks through longitudinal sipe grooves, and the adjacent shoulder pattern blocks are separated through main pattern grooves. The transverse three-dimensional sipe pattern grooves I, the transverse three-dimensional sipe pattern grooves II, the longitudinal sipe pattern grooves and the main pattern grooves are communicated with one another; and the groove walls of the transverse three-dimensional sipe grooves I and the transverse three-dimensional sipe grooves II are zigzag. The overall saturation degree of the tread pattern is 75-85%, the tread rigidity is high, and the tire has good puncture resistance and abrasion volume and is suitable for scenes with severe working conditions.

The utility model relates to the technical field of chemical separation, in particular to a liquid-liquid extraction tower for separating acetic acid from water, which comprises an extraction tower, an extraction agent feed port arranged at the bottom end of the extraction tower, a raw material feed port arranged at the top end of the extraction tower, an extraction phase discharge chute arranged at the top end of the extraction tower and an extraction phase discharge port arranged at the top end of the extraction tower. An upper U-shaped bent pipe is mounted on a discharge port of the extraction box, an extracted mixture forms an extraction phase at the top of the tower, and the extraction phase is collected through the extraction phase discharge groove and discharged through the extraction phase discharge port. And an upper U-shaped bent pipe is mounted on the extraction phase discharge port, so that the waste water is prevented from being carried to the extraction phase discharge port, the unextracted residual solution is prevented from being formed at the bottom of the tower, and the residual solution is collected through the raffinate phase discharge groove and then discharged through the raffinate phase discharge port. And a lower U-shaped bent pipe is arranged on the raffinate phase discharge hole, so that the extracting agent is prevented from overflowing from the tower kettle.

The invention discloses an annular coaxial powder feeding head for underwater laser cladding. The annular coaxial powder feeding head comprises a nozzle top, a nozzle middle part, a nozzle lower part, a drainage upper part, a drainage middle part and a drainage lower part which are sequentially mounted and connected from top to bottom, an upper laser cavity is formed in the middle hollow part of the top of the nozzle; a plurality of powder feeding screw holes are formed in the upper surface of the nozzle top and penetrate through the nozzle top and the nozzle middle to form a powder feeding channel, and a first air curtain / water curtain flow channel is formed in the nozzle top; the nozzle lower part and the nozzle middle part are similar in structure, the middle of the drainage upper part is a laser powder cavity, the upper surface of the drainage upper part is provided with two third air curtain / water curtain flow channels which are connected with the first air curtain / water curtain flow channels in a penetrating manner, and the drainage middle part and the drainage lower part are similar in structure; a water curtain, an air curtain structure and a nozzle are combined, an expanding protection curtain is formed at the bottom, the protection range is larger, and meanwhile the influence on powder feeding airflow and powder flow is smaller.

The invention relates to the technical field of water discharge of saline water filters, in particular to a clear liquid water discharge device for a saline water filter, which comprises a clear liquid tank, a water inlet pipe, a water discharge pipe, a sealing component and a water discharge component, one end of the drainage pipe is fixedly connected to the clear liquid tank, the drainage pipe and the water inlet pipe are symmetrically arranged, the sealing component comprises a first fan blade, a second fan blade, an air bag, a rotating rod, an air inflation assembly and a driving assembly, the first fan blade is rotationally connected with the second fan blade, and the air bag is rotationally connected with the rotating rod. When the external saline water filter is connected with the water inlet pipe through a pipeline, clear liquid enters the water inlet pipe and flows into the clear liquid tank, and because the water level in the clear liquid tank is higher than the baffle plate, the clear liquid can automatically flow out from a full pipe at the outlet of the clear liquid tank, so that the possibility that air is entrained into the line of the clear liquid tank is avoided, and the water can stably flow out.

The invention discloses a U-shaped variable cross-section pouring cup and a gravity casting metal mold, the U-shaped variable cross-section pouring cup comprises an inlet area, a first arc-shaped descending area, an arc-shaped ascending area, a second arc-shaped descending area and a sprue which are communicated in sequence, and the pouring cup can improve the quality of a casting.

This invention discloses a method for extracting high-purity ammonium tetramolybdate from a waste oil hydrogenation catalyst. S1, Primary ammonia dissolution: 28% ammonia water, water, and molybdenum acid extracted from the waste oil hydrogenation catalyst are added to a primary dissolution vessel. The mixture is stirred until the molybdenum acid is fully dissolved. The reaction time is controlled to 1 hour. The pH of the dissolved solution is 7-8. The molybdenum acid has a water content of 35% and a Mo content of 46-50%. This invention employs a stepwise deep impurity removal process of "magnesium chloride for phosphorus removal + 231 resin for vanadium removal," and sets up dual phosphorus and vanadium content detection to ensure that phosphorus <0.01g / L and vanadium <0.01g / L before proceeding to subsequent processes. The molybdenum-vanadium separation coefficient of 231 resin is much higher than that of ordinary resin, effectively avoiding impurity entrainment.

The invention discloses a double-coarse double-fine washing multi-tower differential pressure distillation system and an ethanol preparation method thereof, and belongs to the technical field of rectification. The advanced four-effect distillation technology and the thermal coupling distillation technology are adopted, heat energy in the system is fully utilized, and steam consumption is reduced to the maximum extent through multi-stage preheating of materials and repeated utilization of heat. By arranging the protein separator, the protein contained in the mature mash is pretreated and separated before the mature mash enters the distillation system, so that the pipe blockage of the distillation tower is reduced. By optimizing the production process design, the production continuity and energy conservation are greatly improved, and the double harvest of economic benefit and low carbon consumption is realized.

The utility model discloses an oil-water separating device which comprises a separating tank, a residue filtering basket, a plurality of filtering plates, a separating plate, a plurality of oil discharging valves and a water discharging valve, the residue filtering basket is hung on one side of the upper end of the separation tank; a filter screen for intercepting residues is arranged on the residue filtering basket and is positioned in the separation tank; the filter plates are transversely arranged in the separation tank at intervals and divide the separation tank into a plurality of areas; a screen is arranged on the filter plate; the aperture of the screen is gradually reduced step by step, and the aperture of the screen close to the residue filtering basket is maximum; the separating plate is arranged in the separating tank and is positioned on one side, far away from the residue filtering basket, of the screen with the minimum aperture; the separation plate only allows water molecules to pass through, and oil and water are thoroughly separated through the separation plate; the oil discharge valve is respectively communicated with the areas separated by the filter plates, and oil particles with various particle sizes are discharged through the oil discharge valve; and the drain valve is arranged on the separation tank on one side farthest from the residue filtering basket, and water is drained through the drain valve.

The invention discloses a recycling method of a secondary aluminum alloy, a recycled aluminum alloy and application of the recycled aluminum alloy, and the recycling method comprises the following steps: 1) taking an Al-Mg alloy melt and an oxygen-containing compound as raw materials under the conditions of vacuumizing and then introducing inert gas for protection, and reacting to prepare an Al-MgAl2O4 intermediate alloy; 2) melting a regenerated aluminum alloy to obtain a regenerated aluminum melt, adding the Al-MgAl2O4 intermediate alloy into the regenerated aluminum melt, and melting and mixing to obtain a recycled aluminum alloy melt; and (3) the recycled aluminum alloy melt is subjected to casting solidification forming, and the recycled aluminum alloy is obtained. According to the recycling method, the Fe-containing intermetallic compound phase in the regenerated aluminum alloy can be obviously improved, air holes and defects in the regenerated aluminum alloy are obviously reduced, and the mechanical property of the regenerated aluminum alloy is obviously improved.

The present application belongs to the field of metallurgy, and discloses a method for removing arsenic, antimony and bismuth from crude copper, comprising the following steps: S1. Melting crude copper raw material to obtain molten copper liquid, and controlling the temperature of the molten copper liquid to be 1150-1250 DEG C; S2. Adding a slagging agent to the molten copper liquid, and introducing oxygen-containing gas to remove impurities from the molten copper liquid; first, maintaining the oxygen volume concentration at 0.1%-0.5%, adding a part of the slagging agent to react; then, increasing the oxygen volume concentration to 1.5%-3.0%, and adding the remaining slagging agent to react; wherein the slagging agent comprises an alkaline carbonate, an oxidizing agent and a crystal nucleus inducer; the oxidizing agent is sodium nitrate or / and potassium nitrate; S3. Allowing the molten copper liquid to be separated from the slag phase, and removing the slag to obtain refined copper liquid. The method can deeply remove arsenic, antimony and bismuth, and can reduce the amount of slag, and the slag system has good fluidity and is easy to separate, so that the copper purity is improved while the recovery rate is ensured.

The utility model discloses a kind of aluminium electrolysis cell molten aluminium stabilizing flow devices, comprising: anti-settling equipment shell, its side surface is fixedly provided with control cabinet;Mounting shell, it is fixedly connected in anti-settling equipment shell side;Driving motor, it is installed in mounting shell;Rotary shaft, it is driving motor output shaft transmission connection, its end away from driving motor is rotatably installed in the fixed sleeve on the inner wall of anti-settling equipment shell;Mixed support, it is installed on rotary shaft, and can rotate synchronously with rotary shaft;Filter screen body, it is installed in the inside of anti-settling equipment shell;Fixed support ring, it is installed on rotary shaft;Cleaning support, it is fixedly installed on fixed support ring, can move or rotate synchronously with fixed support ring;Wherein, when driving motor drives rotary shaft rotation, mixed support can stir molten aluminium, cleaning support can clean filter screen body.The utility model can change the pressure of cleaning support to filter screen by adjusting the position of fixed support ring, enhance the effect of cleaning residue.

The utility model relates to the technical field of separation devices, and particularly discloses an organic peroxide continuous washing and purifying device which comprises a tank body, a plurality of baffles are fixedly arranged in the tank body at intervals, a plurality of through holes are formed in the baffles at intervals, a product inlet is formed in one side of the tank body, a product outlet is formed in the other side of the tank body, and a jacket is arranged outside the tank body. A first partition plate and a second partition plate are sequentially arranged on the side, close to the product outlet, in the tank body, a liquid level sensor and a waste water discharge valve are arranged at the top and the bottom between the first partition plate and the second partition plate respectively and are in linkage, and a thermometer is arranged on the top of the tank body. According to the utility model, the demulsification probability of emulsified liquid drops in materials can be increased, the separation speed of oil and water phases is accelerated, continuous operation is realized, the single-batch time period of products is shortened, the use efficiency of the reaction kettle and the single-kettle yield are improved, the production cost is reduced, the washing water consumption is reduced, and the discharge of production wastewater is reduced; and the later wastewater treatment pressure is reduced.

The application relates to the technical field of blow-filling-sealing integrated machines and discloses a five-layer co-extrusion die head with an oblong outlet, which comprises an inner main body, outer main bodies one to six which are sequentially sleeved on the outer side of the inner main body, a discharge port die plate and a thickness adjusting mechanism, five-layer independent annular flow channels are formed between the inner main body and each outer main body, the five-layer flow channels are sequentially arranged from the inside to the outside as an inner layer contact layer flow channel, an inner layer adhesive layer flow channel, an intermediate barrier layer flow channel, an outer layer adhesive layer flow channel and an outer layer protective layer flow channel, and each layer flow channel is symmetrically and balancedly arranged based on the central axis of the oblong material blank outlet. The inner layer adhesive layer, the intermediate barrier layer and the outer layer adhesive layer are combined to form a three-layer composite structure at a first superposition position, and the three-layer composite structure is extruded into an oblong material blank through the discharge port die plate. The five-layer co-extrusion die head with the oblong outlet adopts a secondary superposition structure to avoid mixed layers, the flow channel is balanced and symmetrical to ensure uniform wall thickness, and the built-in adjusting mechanism can realize independent fine adjustment of the thickness of a single layer.

The utility model belongs to the technical field of chemical equipment, and relates to a liquid feeding device for a horizontal flash drum, which is characterized by comprising a liquid feeding pipe component fixed on a drum body of the flash drum and a liquid distribution tank component fixed inside the flash drum, a liquid feeding pipe of the liquid feeding pipe assembly penetrates through the flash tank barrel and is fixed on the flash tank barrel, a flange is arranged at one end, outside the flash tank, of the liquid feeding pipe, and one end, extending into the flash tank, of the liquid feeding pipe is connected with a horn mouth; the liquid distribution tank assembly comprises a conical tank body and supporting channel steel, the two ends of the supporting channel steel are fixedly connected with the flash tank barrel, and the conical tank body is fixed to the supporting channel steel; and the horn mouth is suspended on the conical groove body. The flash tank is reasonable in design, simple in structure and capable of effectively avoiding the problems that high-pressure large-flow liquid directly washes the tank body, corrosivity of the liquid to the tank body is increased, and even the flash tank vibrates. The retention time of the liquid is prolonged, and gas-liquid entrainment caused by insufficient flash evaporation of the solution in the gas-liquid separation process is avoided.

The present invention belongs to the field of fuel cells, and specifically relates to a humidification system and a humidification method for a low-power fuel cell test bench. The humidified reaction gas can reach a certain set dew point temperature, and the reaction gas is dispersed into small bubbles through a bubbler head, and fully contacts with the pure water in the humidification tank. The temperature of the deionized water in the humidification tank is controlled by an external water circulation, and the deionized water in the humidification tank is circulated to the humidifier through a magnetic pump through a heater and a cooler. In order to better ensure the temperature of the humidification tank, two heating belts are wound around the upper and lower parts of the humidification tank; the humidification tank adopts a "wine bottle" shape with a large diameter at the bottom and a small diameter at the top; the pipeline of the humidification tank entering the fuel cell adopts a special heating bellows to ensure that the reaction gas entering the stack does not condense, and the circulation pump adopts a magnetic pump, which has a small suction range and is safe and reliable.

The utility model discloses a solid-liquid separation device for wastewater treatment, which relates to the technical field of wastewater treatment and comprises a box body, a water inlet is formed in the upper portion of the box body, a filtering chamber is arranged in the box body, and a filtering mechanism is arranged in the filtering chamber and used for filtering out large impurity garbage in waste water; a waste box is fixedly connected to one side of the box body and communicates with the filtering mechanism. A filtering plate is arranged below the filtering mechanism, a collecting chamber is arranged below the filtering plate, and a water outlet is formed in one side of the collecting chamber and connected with an external water pump. Through the arrangement of the filtering mechanism, large-particle waste materials and garbage are collected by the filtering mechanism and discharged into the collecting box to be collected firstly, and then through multi-stage filtering, solid-liquid separation of waste water is sufficient, serious blockage is avoided, and the use efficiency is improved.

The invention discloses a spiral-flow type cumene hydroperoxide (CHP) decomposition reactor and a decomposition method, and the decomposition method comprises the following steps: 1) CHP, a circulating material and desalted water are divided into two streams along a tangent line in a central symmetry manner and enter the top of a conical reactor, and a spiral-flow type flow field is formed in the reactor; (2) intermittently adding resin from the top of the reactor, and rotating along the side wall of the reactor under the action of a spiral-flow type flow field to form a parabolic dense-phase region; and (3) a cylindrical guide cylinder is arranged in the reactor, so that the resin is separated from a reaction product, the reaction product is extracted from the top, and the resin is retained in the reactor. According to the reactor and the decomposition method, the corrosion problem of rear-end equipment caused by concentrated sulfuric acid catalysis can be reduced, fluidization of the resin is realized, the problems of low reaction selectivity, short service life of the resin and the like caused by resin fixed bed catalysis are avoided, meanwhile, replacement of the resin can be realized under the condition of no shutdown, and the production and operation cost is reduced.

A dental paste filling device for filling dental paste in a container without entraining air bubbles is disclosed. The dental paste filling device includes: a paste supply stage serving as a supply source of the dental paste; a paste filling stage where the dental paste is filled in the container; and a supply flow passage connecting the both stages. The paste supply stage comprises: a storage chamber for storing the dental paste; a storage chamber depressurizing and defoaming device for depressurizing the inside of the storage chamber to defoam the dental paste within the storage chamber; and a storage chamber extruding device for extruding the dental paste within the storage chamber towards the supply flow passage. The paste filling stage comprises: a filling chamber having an open / close mechanism; a holder for detachably holding the container inside the filling chamber; a filling chamber deaerating device for depressurizing the inside of the filling chamber to prevent entrainment of air bubbles into the dental paste; and a reception port for introducing the dental paste into the filling chamber. The supply flow passage comprises: an upstream tube connected to the storage chamber; a downstream tube connected to the reception port of the filling chamber, and a discharge control valve disposed between the upstream tube and the downstream tube.