618results about How to "Slow down the flow" patented technology

The invention discloses an integrated liquid-cooled cabinet capable of circularly dissipating heat, and relates to the technical field of liquid-cooled cabinets, the integrated liquid-cooled cabinet comprises a machine body, a partition plate is fixedly connected to the inner wall of the middle of the machine body, a liquid-cooled cavity is formed in one side of the partition plate and on the same side with the machine body, and a side door is arranged on the outer side wall, close to the partition plate, of the machine body; the integrated liquid cooling cabinet capable of circulating heat dissipation comprises a circulating pressurization mechanism and an auxiliary liquid discharge mechanism, the circulating pressurization mechanism is arranged, an eccentric wheel is adopted to drive a telescopic rod and a disc to do reciprocating lifting motion, the flowing speed of heat transfer oil in a liquid cooling cavity can be slowed down, heat transfer efficiency is improved, and heat dissipation efficiency is improved. The flow speed of the heat transfer oil is adjusted in real time in cooperation with the variable-speed motor, heat transfer is more effective, the mode that a water pump is used for increasing high water pressure firstly and then a pressure reducing valve is used for reducing pressure is avoided, energy loss is reduced, and the heat dissipation effect is improved.

The invention relates to a mixed transportation pipeline hydrate blockage risk grading method which comprises the following steps: determining the height of a sedimentary bed layer in a pipeline based on the hydrate generation deposition amount in the pipeline, and determining a hydrate blockage risk area and grade in the pipeline through an established hydrate blockage area judgment criterion. And finally, the hydrate blockage risk grading method in the mixed transportation pipeline is formed. According to the method, the risk of pipeline blockage can be comprehensively evaluated, the design optimization work of a pipeline transportation system is guided, and the method has important significance on hydrate flow safety guarantee.

The invention relates to the technical field of flue gas purification, in particular to a flue gas purification system with carbide slag as a desulfurizer, which comprises a desulfurization cylinder, a gas inflow self-adjusting assembly is arranged in the middle of the inner side of the desulfurization cylinder, a spraying assembly is fixedly connected above the gas inflow self-adjusting assembly, a separation assembly is fixedly connected to the bottom of the inner side of the desulfurization cylinder, and the separation assembly is fixedly connected to the bottom of the inner side of the desulfurization cylinder. A cleaning assembly is arranged on the outer side of the separation assembly, the top of the desulfurization cylinder is communicated with an exhaust pipe, the cylinder wall of the desulfurization cylinder is communicated with four communicating pipes, one ends of the four communicating pipes are communicated through an annular pipe, and a mounting frame is integrally formed between the inner walls of the desulfurization cylinder. According to the improved flue gas purification system, the speed of the flue gas entering the desulfurization cylinder is adjusted in a self-adaptive mode through the gas inflow self-adjusting assembly, meanwhile, the gas inflow self-adjusting assembly can synchronously adjust the spraying amount, and under mutual cooperation, insufficient reaction caused by the too high flue gas entering speed can be avoided.

The invention discloses steelmaking flue gas recovery and waste heat utilization equipment and a use method, and relates to the technical field of flue gas waste heat recovery. Dust in the steelmaking flue gas can be filtered through the filter cartridge before the flue gas enters the heat exchange mechanism, and then the clean flue gas is conveyed into the heat exchange mechanism, so that the inner wall of the heat exchange barrel can be kept in a clean state all the time, the dust in the steelmaking flue gas is prevented from being attached to the inner wall of the heat exchange barrel, heat transfer is prevented from being hindered, and the service life of the steelmaking flue gas is prolonged. The smoke dust scraping assembly can scrape off smoke dust attached to the inner wall of the filter cartridge, the self-cleaning effect can be achieved while the heat of the steelmaking smoke gas is recycled, and therefore the good filtering effect of the filter cartridge is always kept, and the scraped-off smoke dust can be collected in a centralized mode under pushing of an auger. When high-temperature flue gas passes through the heat exchange assemblies, the heat exchange assemblies can rotate around the axes of the heat exchange assemblies, so that surrounding clear water is disturbed, clear water at different positions is stirred and mixed, and water temperature areas at different positions are consistent.

The invention relates to the technical field of cell filtration, and discloses a cell filter facilitating separation and filtration and a filtration method thereof.The cell filter comprises a main body, a fixing ring is fixedly connected to the interior of the main body, a cross-shaped spring frame is slidably connected to the outer surface of the fixing ring, and a conical spiral block is fixedly connected to the top of the cross-shaped spring frame; three fixing frames are fixedly connected to the side, away from the conical spiral block, of the cross spring frame, the three fixing frames are arrayed circumferentially with the conical spiral block as the center, and C-shaped rings are fixedly connected to the sides, away from the conical spiral block, of the three fixing frames. Meanwhile, when the air injection ring irregularly shakes, cell sap on the inner wall of the bottom of the main body can be continuously disturbed, so that cells and solutes in the cell sap can be more uniformly distributed on the surface of the filter screen, and the condition that the filtering resistance is too large due to local cell accumulation is avoided, so that the filtering effect is improved.

The invention relates to a deodorization and dust removal tower and an operation method thereof, and belongs to the technical field of waste gas treatment.The deodorization and dust removal tower comprises a tower body and further comprises a baffling mechanism; a spraying mechanism; a cleaning mechanism; and a demisting mechanism. The baffling mechanism and the cleaning mechanism are used in cooperation, the flowing distance of water mist and gas is increased through the baffling mechanism, the water mist and the gas can be attached to the interior of a baffling ring of the baffling mechanism, particulate matter in the gas is absorbed by the water mist, and the particulate matter in the gas is absorbed by the water mist through work of the cleaning mechanism; the flow velocity of the water mist and the gas in the baffling mechanism is further slowed down, so that particulate matters in the gas are further absorbed by the water mist, and meanwhile, the cleaning mechanism can clean down water drops adhered to the inner wall of the baffling mechanism, so that on one hand, the amount of the water mist adsorbed in the baffling mechanism is increased; on the other hand, the flowing speed of the water mist and the gas is reduced, the absorption amount and the absorption efficiency of the particulate matter in the gas are improved, and therefore the treatment efficiency of the particulate matter in the gas is improved.

The utility model discloses a filtering water tank convenient to clean and maintain, and relates to the technical field of filtering water tanks, the filtering water tank convenient to clean and maintain comprises a filtering water tank, the top of the filtering water tank is fixedly provided with a water inlet hopper, the water inlet hopper is communicated with the inside of the filtering water tank, and the inside of the filtering water tank is fixedly provided with a filter screen. A first driving motor is fixedly installed on one side of the filtering water tank, a threaded rod is fixedly installed at the output end of the first driving motor, and the threaded rod is rotationally connected in the filtering water tank, so that three rotating shafts are reset through three torsion springs, then three baffles are reset, and then three sealing gaskets make contact with the surface of the filtering net; water on the filter screen is intermittently blocked, so that the situation that the water on the water inlet hopper flows too fast, the filtering effect is poor, water drives impurities to move to the outside of the filtering water tank is prevented, the water filtering effect is improved to the maximum extent, and the water flowing speed is slowed down.

The invention belongs to the technical field of inductance coil sealing, and discloses a high-sealing inductance coil which comprises a speed reduction shell, an installation cover is installed on the speed reduction shell, a coil shell is installed in the speed reduction shell in a sliding mode, and positive guide baffles distributed in a circumferential array mode are fixedly connected into the speed reduction shell; through cooperation of structures such as the forward guide baffle and the reverse guide baffle, the forward guide baffle and the speed reduction column are arranged between the speed reduction shell and the inner baffle ring in the circumferential direction in an array mode, and the closed guide baffle is arranged at the position of the sealing sliding plate and fixedly connected with the forward guide baffle and closed, so that the speed reduction shell and the inner baffle ring form an annular space; the forward guide baffle, the reverse guide baffle, the closed guide baffle and the speed reduction column jointly form a one-way circulating zigzag channel, so that glue for sealing the inductance coil flows in the channel jointly formed by the forward guide baffle, the reverse guide baffle, the closed guide baffle and the speed reduction column after being poured into the speed reduction shell.

The invention relates to the technical field of ventilator dust removal, and discloses a spray type water film guide plate multi-stage centrifugal dust removal device and method.The device comprises a dust removal box, a surge-free dust removal centrifugal fan, a spray unit and a water film guide plate set, and the spray unit is arranged at an air inlet of the dust removal box in a sleeving mode for spray treatment; dust particles impact into the grooves of the water film guide plate group along the airflow direction under the action of inertia force and are mixed and gathered with water, and dust-water mixed liquid accelerates to flow downwards in the grooves to a flow collecting groove at the bottom of the dust removal box and is discharged under the action of gravity and dust gas velocity and parallel component of the grooves, so that the purpose of primary dust removal is achieved; and then the gas enters the centrifugal ventilator and rotates in the volute at a high speed, residual dust particles in the liquid and the gas are thrown to the inner wall of the volute main body at a high speed along the tangential direction of the airflow under the action of centrifugal inertia force and are discharged from the drainage pipes on the two sides of the outlet along the inner wall, so that the purpose of secondary dust removal is achieved, and the dust removal effect is improved.

The invention discloses a supporting and backfilling device and method for the suspended position of a submarine pipeline, and belongs to the technical field of submarine facility protection.The method comprises the steps that firstly, a plurality of supporting and backfilling unit pieces are arranged in the longitudinal direction of the submarine pipeline, and each supporting and backfilling unit piece is arranged at the suspended position of the submarine pipeline; wherein the annular pipeline wrapping cylinder wraps the outer wall of the submarine pipeline, the left supporting plate and the right supporting plate are arranged at the two ends of the upper portion of the lower annular wrapping part correspondingly, and the submarine pipeline at the suspended position of the submarine pipeline is supported; and 2, in the longitudinal flowing process of the sand flow along the submarine pipeline, the sand flow is blocked by an upper quicksand fan-shaped baffle and a lower quicksand fan-shaped baffle, the sand flow flows to a left supporting plate and a right supporting plate along the upper quicksand fan-shaped baffle and the lower quicksand fan-shaped baffle, and finally the sand flow is dredged to the suspended position of the submarine pipeline below the submarine pipeline through sand guide holes, and backfilling is achieved.

The invention belongs to the technical field of mechanical transmission, and discloses an elastic foil gas bearing which comprises an elastic foil gas bearing body, a bearing ring and a rotary gas injection device. The bearing ring is fixedly arranged on the outer side of the elastic foil gas bearing body in a sleeving mode, a rotary gas spraying device mounting groove is formed in the side wall, facing the elastic foil gas bearing body, of the bearing ring, and a groove opening of the rotary gas spraying device mounting groove right faces a gap in the elastic foil gas bearing body. The rotary air injection device is rotationally arranged in the rotary air injection device mounting groove, an air injection channel is formed in the rotary air injection device, and an air entraining channel is formed in the position, corresponding to the rotary air injection device mounting groove, of the bearing ring, communicates with the air injection channel and is used for introducing high-pressure air flow into the air injection channel; and the direction of high-pressure airflow sprayed from the air spraying channel to the shaft neck is adjusted through rotation of the rotary air spraying device in the rotary air spraying device mounting groove. The direction of airflow sprayed to the shaft neck can be adjusted, so that the flowing speed of the airflow on the surface of the rotor is reduced.

The invention relates to the technical field of liquid cooling machines, and particularly discloses a vertical liquid cooling machine for temperature control of an energy storage cabinet, the vertical liquid cooling machine comprises a first mounting plate, a second mounting plate, a plurality of first heat dissipation grooves and a plurality of second heat dissipation grooves, the first heat dissipation grooves are fixed at one end of the first mounting plate through fixing plates and bolts, and the second heat dissipation grooves are fixed at the other end of the first mounting plate through fixing plates and bolts. The second heat dissipation groove is fixed to one end of the second mounting plate through a fixing plate and bolts, the first mounting plate and the second mounting plate are fixed together through bolts, the vertical liquid cooling machine is started, cooling liquid flows into the connecting box through the liquid inlet pipe and then flows into the first heat dissipation groove and the second heat dissipation groove through the flow guide plates, the liquid medium makes more sufficient contact with a heat exchange piece, and the heat exchange efficiency is improved. The effects of rapidly cooling the liquid medium and improving refrigeration of the liquid medium are achieved, finally, the liquid medium with the cooling capacity flows out of the liquid outlet end of the heat exchange base and circularly flows to the load, and cooling of the load is completed.

The utility model relates to the technical field of heat exchange equipment, and discloses an anti-frosting condensation type heat exchanger. The anti-frosting condensation type heat exchanger comprises a base, an air inlet pipe, an air outlet pipe, a protective shell, a water outlet pipe, a water inlet pipe and a partition plate, the protective shell is arranged on the base, the top of the protective shell is connected and communicated with the air inlet pipe, and the bottom of the protective shell is connected and communicated with the air outlet pipe. The top of the protection shell is connected and communicated with a water outlet pipe, the bottom of the protection shell is connected and communicated with a water inlet pipe, a partition plate is fixedly connected to the interior of the protection shell, the first fixing frame is fixedly connected to the base, and the protection shell is arranged on the first fixing frame. By starting the heating module, the heating module generates heat, and the heat is transmitted to the protective shell through the heat conduction pipe, so that the situation that the heat is absorbed by frosting on the surface of the protective shell at low temperature, and the heat exchange efficiency is reduced is avoided.

The utility model discloses a decompression electromagnetic valve device which comprises a valve body and a valve and is characterized by further comprising a fixing ring, installation rings are fixedly arranged on the inner walls of connecting pipelines, located on the two sides of the valve, of the valve body, an inserting groove is formed in each installation ring, and an inserting block used for being inserted into the inserting groove to fix the fixing ring is fixedly arranged on the end face of the fixing ring. A buffer frame is fixedly arranged on the inner wall of the fixing ring, a plurality of drainage grooves are formed in the side wall of the buffer frame in a penetrating mode and evenly formed along the outer wall of the buffer frame, a buffer disc is slidably arranged in the buffer frame, and buffer springs fixedly connected with the bottom of the buffer frame are fixedly arranged at the end, close to the bottom of the buffer frame, of the buffer disc and evenly arranged along the end face of the buffer disc; the buffer disc is matched with the buffer spring to buffer water flow firstly, the water flow is drained through the drainage groove after being buffered and then makes contact with a gateway opening, therefore, the water flow cannot directly impact the gateway opening to cause noise, and the fixing ring is detachable and convenient to replace.

The utility model relates to a flue gas waste heat recovery device of a gas-fired hot water boiler, and aims to solve the technical problems that the existing coiled pipes are arranged in a stacked manner, so that the gathering effect on heat is inconvenient to generate, the heat exchange efficiency is lower, and the rapid and sufficient heat exchange is not facilitated, and the flue gas waste heat recovery device comprises a heat exchange box in which a heat exchange cavity is formed, a heat exchange module is detachably arranged in the heat exchange cavity, the heat exchange module comprises a first heat exchange assembly and a second heat exchange assembly which are arranged in a staggered and crossed mode, the first heat exchange assembly comprises multiple sets of first S-shaped heat exchange pipes which are transversely arranged at equal intervals, and the second heat exchange assembly comprises multiple sets of second S-shaped heat exchange pipes which are longitudinally arranged at equal intervals; the first snakelike heat exchange pipe and the second snakelike heat exchange pipe are arranged in a staggered and crossed mode, a multi-point heat gathering area with the function of promoting the heat exchange effect is formed at the crossed point of the first snakelike heat exchange pipe and the second snakelike heat exchange pipe, and the first snakelike heat exchange pipe and the second snakelike heat exchange pipe are each provided with a straight pipe part and a bent part. The heat exchanger has the advantage of improving the heat exchange efficiency.

The invention relates to the field of ball valves, in particular to a top-mounted ball valve. The technical problems that in the prior art, a valve is damaged by the water hammer effect, and normal use of a valve body is affected due to the fact that media are reserved in the valve body are solved. According to the technical scheme, the top-mounted ball valve comprises a first valve seat, a second valve seat, a valve body and the like. A valve body is communicated between the first valve seat and the second valve seat. In the rotating process of the valve element, part of a medium is introduced into the temporary storage cavity, so that the flowing speed of the medium in a pipeline is slowly decreased, impact damage to the ball valve caused by rapid rotating of the valve element and the water hammer effect is effectively avoided, and when the ball valve is opened again, the medium rapidly flows in the second valve seat, so that the service life of the ball valve is prolonged. The medium in the temporary storage cavity can be discharged into the second valve seat through the backflow pipe, the medium in the temporary storage cavity is discharged, and medium recycling is achieved.

The utility model discloses a compressor and refrigeration equipment. The compressor comprises a shell, a motor assembly, a crankshaft, a spring and a supporting assembly. The crankshaft protrudes upwards to form a matching part; the supporting assembly comprises a motor bearing, and the motor bearing is provided with an assembling hole. The matching part is rotationally arranged in the assembling hole, the upper end face of the matching part is located below the plane where the upper end face of the motor bearing is located, a first oil storage cavity located above the upper end face of the matching part is formed in the assembling hole, and the maximum distance between the upper end face of the matching part and the lower end of the spring is H1 in the direction of the central axis, the minimum distance between the upper end face of the matching part and the upper end face of the motor bearing is H2, and H2 / H1 is larger than or equal to 0.04 and smaller than or equal to 0.5. The first oil storage cavity is defined between the upper end face of the matching part and the upper end face of the motor bearing, the oil blocking effect of the spring is combined, the lubricating performance can be guaranteed, the oil spitting rate can be reduced, and the reliability of the compressor can be improved.

The invention relates to the technical field of brazing materials, in particular to brazing filler metal and a preparation method and application thereof. The solid state of the brazing filler metal is in a sandwich foil shape, the brazing filler metal comprises a foil-shaped brazing filler metal core and an aluminum foil layer wrapping the peripheral side of the brazing filler metal core, and the brazing filler metal core contains Sr and foamed aluminum particles. The preparation method comprises the following steps: S1, melting a required amount of aluminum foil layer raw material into molten metal, and casting to obtain a hollow plate-shaped aluminum frame body with openings at two ends; s2, a required amount of brazing filler metal metal core raw material is heated to prepare a metal suspension containing solid foamed aluminum particles, the metal suspension is injected into the aluminum frame body, and a composite metal plate is obtained after cooling; and S3, the composite metal plate is subjected to multi-pass rough rolling and finish rolling, and the sandwich foil-shaped brazing filler metal is obtained. The brazing filler metal structure and the formula components are optimized and improved, brazing filler metal loss and brazing filler metal liquid turbulence during brazing can be restrained, and the shear strength of a brazed joint is improved.

The utility model discloses an injection mold for producing a display panel. The injection mold comprises a top plate, a pouring nozzle, an upper mold plate, a lower mold plate, a bottom plate, an ejector pin mechanism and an ejector pin plate, a mold cavity insert is arranged at the bottom of the upper mold plate, a mold core insert is arranged at the top of the lower mold plate, and two symmetrically arranged molding holes are formed between the mold cavity insert and the mold core insert. According to the utility model, the two symmetrically arranged molding holes are arranged in the injection mold, so that the injection mold can simultaneously produce two curved-surface display panels during one-time mold opening and closing, and the production efficiency is high; meanwhile, the cross section of the mold core insert is of a V-shaped structure, and the middle part of the mold core insert is provided with the pouring channel for communicating the two forming holes, so that the molten plastic raw material can be uniformly conveyed and filled in the forming holes, and the mold core insert of the V-shaped structure can increase the flowing resistance of the plastic raw material so as to slow down the flowing speed of the plastic raw material; therefore, bubbles are reduced, and the product quality is improved.

The invention provides sludge thickness detection equipment for water conservancy detection and a detection method, and belongs to the technical field of sludge thickness detection sensors. Comprising an outer pipe, a motor is fixed to the inner wall of the outer pipe through a support, a screw is fixed to the output end of the motor, a distance sensor is fixed to the bottom of the motor, the surface of the screw is sleeved with a detection rod in a threaded mode, the outer pipe movably sleeves the surface of the detection rod, a guide rail is fixed to the inner wall of the outer pipe, and a sliding block is fixed to the surface of the detection rod and attached to the interior of the guide rail. The bottom of the outer pipe is in threaded connection with a sealing ring, and the bottom of the sealing ring is a tip. By arranging the outer pipe, the detection rod, the first pressure sensor, the floating plate with holes and the reference assembly, when the thickness of sludge is detected, the outer pipe is supported on the sludge, the perpendicularity of the outer pipe and the detection rod is improved through the reference assembly, so that the detection precision is improved, the outer pipe can be supported on the water surface through the floating plate with holes, the thickness of the sludge at different positions can be detected, and the detection accuracy is improved. And the detection limitation is smaller.

The utility model relates to the technical field of steam condensation, in particular to a steam condensation recovery structure for an evaporator, which is characterized in that a bottom ring for supporting a condensation barrel is arranged on the lower side of the condensation barrel, a condensation column is arranged in the condensation barrel, a cooling auger is arranged in the condensation barrel, and blades of the cooling auger are hollow blades; condensing boxes are connected to the condensing barrel and the upper end and the lower end of the cooling auger respectively, the condensing boxes are communicated with a hollow space of a blade of the cooling auger and an external condensing source, the collecting box is arranged at the bottom of the condensing barrel, and an air inlet pipe is arranged on the lower side of the condensing barrel. The arrangement of the cooling auger can play a role in guiding steam entering the condensation barrel, cooling treatment can be carried out at the same time, condensate is conveyed into the hollow paddle through the condensation box, the contact area between the steam and the condensation surface is increased, the condensation effect is improved, the collection box located at the bottom of the condensation barrel can collect the condensed steam, and the condensation effect is improved. And subsequent process treatment is facilitated.

The utility model provides a wastewater recycling device for a slaughter workshop. The slaughter workshop wastewater recycling device comprises a filter tank; the purifying box is fixedly mounted at the bottom of the filtering box; the mounting plate is fixedly mounted on the inner wall of the water inlet side of the filter box; the pair of screen plates are arranged on the two sides of the mounting plate respectively, and the screen plates can be in contact with grease blocks floating on the upper layer of the filter box; the filter plate is arranged in the filter box and is positioned on the water outlet side of the mounting plate, and the filter plate can be in contact with the screen plate. The wastewater recycling device for the slaughter workshop has the advantages that the coagulated grease floating on the upper layer of the filter box can be conveniently taken out from the filter box, the grease removal efficiency is improved, and the slaughter wastewater is conveniently filtered.

The invention belongs to the technical field of dike engineering, and particularly relates to a flexible dike breach structure which comprises a base. The dike body is fixedly connected to the top of the base; the fixed seat is fixedly connected to the front end of the base; the multiple fixing plates are fixedly connected to the rear end of the base and fixedly connected to the side wall of the dike body; through cooperation of a first connecting block, a second connecting block and a connecting rod, the safety threshold value of the bearing capacity of the dike body is set in a computer program, when the water level of river water exceeds the safety bearing capacity of the dike body, an electric push rod is controlled through the computer program, and a moving plate is pushed through the output end of the electric push rod; the moving plate moves to drive the second connecting block to move, the second connecting block drives the connecting rod to move, the bottom end of the connecting rod rotates to drive the first connecting block to move downwards, at the moment, the connecting rod rotates to be in an inclined state, supporting of the dike body is achieved, the supporting time of the dike body is prolonged, and rescue time is provided for rescue workers.

The present invention relates to the technical field of energy-saving roasting of coated sand, and discloses a regenerative coated sand roasting furnace, comprising a main body, a combustion chamber is arranged in the main body, an igniter facing the combustion chamber is installed on the main body, and a feed chamber is fixed on one side of the main body, one side of the combustion chamber is connected to the feed chamber, and the side of the combustion chamber away from the feed chamber is connected to a preheating bag, and the preheating bag is connected to an exhaust pipe; a baffle is arranged in the feed chamber, and a preheating chamber connected to the exhaust pipe is opened in the side wall of the feed chamber; the preheating chamber is connected to the exhaust pipe. The present invention has a simple structure, and the waste gas discharged from the combustion chamber is sent into the feed chamber to preheat the sand particles. The sand particles with a certain temperature enter the combustion chamber, which can reduce the heat consumption in the combustion chamber, thereby reducing the use of natural gas and reducing the roasting cost of the sand particles.

The invention discloses energy-saving and environment-friendly tail gas treatment equipment for a pelletizer, and relates to the technical field of tail gas treatment.The energy-saving and environment-friendly tail gas treatment equipment comprises a tail gas inlet pipe and further comprises a humidifying and cooling device, a powder removing device, a drying assembly, an air exhaust fan and a spraying device, and the spraying device is used for removing harmful gas in gas; the humidifying and cooling device comprises a humidifying tank arranged at the gas outlet end of the tail gas inlet pipe and a first spray head for injecting water mist into the humidifying tank; the powder removing device comprises an impurity removing tank which is arranged on one side of the humidifying tank and communicates with the air outlet end of the humidifying tank. The driving assembly drives the spiral piece to move upwards and rotate, the multiple scraping assemblies are used for scraping attachments on the surface of the spiral piece, the spiral piece is cleaned, and the effect of preventing the attachments from being deposited on the surface of the spiral piece is achieved. And the attachment and the liquid mixed with the impurities are dried by using the dried gas, so that harmful gas is prevented from being released when the drying assembly is cleaned.

The invention relates to the technical field of granulators, in particular to a modified plastic extrusion granulator, which comprises an extruder, a pelletizing chamber, a water feeding device, a motor, a material receiving device, a template and a pelletizing module, the extruder comprises a main body and an external expansion section, the template is coaxially connected with the external expansion section, the template is provided with a hole ring I, a hole ring II and a hole ring III, and the hole ring II, the hole ring II and the hole ring III are coaxially connected. The pelletizing module is connected to the left side of the motor and comprises a cutter head, the cutter head is located on the right side of the template, a first cutter, a second cutter and a third cutter are arranged on the left end face of the cutter head from inside to outside in a circumferential array mode, and the first cutter, the second cutter and the third cutter are driven by the motor to rotate synchronously and conduct differential pelletizing on the first hole ring, the second hole ring and the third hole ring. According to the invention, through modular design of the cutters and a mode that the pelletizing speeds of the cutters of different modules are different, the purpose of uniform size of pelletized particles is achieved.

The utility model discloses centrifugal compound solid-liquid separation equipment and belongs to the technical field of solid-liquid separation. Comprising a separation main body of which the upper end is provided with an adding disc, a plurality of solid-liquid separation cylinders connected with the adding disc through connecting pipes, and centrifugal separation assemblies arranged in the solid-liquid separation cylinders; a compound solution needing solid-liquid separation is equivalently dispersed into the multiple centrifugal barrels through the adding disc, batch centrifugal solid-liquid separation is carried out, a large amount of compound solution can be treated at the same time, meanwhile, the inner walls of the centrifugal barrels are further sprayed with corrosion-resistant materials, centrifugal force at a high rotating speed and possible corrosive liquid can be tolerated, and the service life of the centrifugal barrels is prolonged. The stable operation and the separation efficiency of the equipment are ensured; the solid-liquid separation barrel and the centrifugal barrel are arranged to be of a downwards-inclined structure, so that solid particles with large density can move towards the barrel wall of the centrifugal barrel more easily along the inclined face and deposit through the gravity effect, and the solid and liquid separation process is accelerated.

The invention discloses a preparation device of a microbial agent for tomato cultivation, relates to the technical field of fermentation equipment, and aims to solve the problems that a large amount of gas is generated by sealed fermentation propagation of microorganisms, so that the gas pressure in a fermentation tank is continuously increased along with the increase of fermentation time, and excessive gas needs to be discharged within a safe range for fermentation safety. Meanwhile, in the exhaust process, the gas can drive the chippings to take off, after the internal air pressure is increased due to the gas generated by fermentation in the fermentation tank, the air pressure pushes the sealing disc to compress the spring to deform, and after the air pressure reaches a certain degree and the sealing disc moves to the position above the air hole, the gas generated by internal fermentation sequentially penetrates through the air hole, the gas guide groove and the exhaust groove; the gas generated by fermentation is discharged, and the gas hole and the gas guide groove are wrapped by the pipe cover, so that the gas passes through the gas hole and then enters a larger space, the flowing speed is reduced, and chippings driven along with the flowing of the gas are blocked.

This utility model relates to the field of pipeline technology, specifically to a compressor venting and noise reduction pipeline and its noise reduction system. The compressor venting and noise reduction pipeline includes: an exhaust pipeline, a bend downstream of the exhaust pipeline, a branch pipeline downstream of the bend, an output pipeline downstream of the branch pipeline, and a silencer downstream of the output pipeline. The silencer includes a spiral flow guiding device. This utility model reduces the velocity of the medium flow by using the bend, branch pipeline, and silencer, consuming part of the kinetic energy of the medium flow, thereby reducing the noise generated by the medium colliding with the pipe wall during discharge and reducing the safety risks to on-site personnel.

This utility model discloses a jet pump propulsion device, comprising: a pump casing having a water inlet section with a water inlet hole; a drive assembly including an impeller and a power component for rotating the impeller, the impeller being rotatably disposed inside the pump casing; and a guide section located within the water inlet section, the guide section having a guide surface on the side near the impeller for guiding external water flow towards the impeller, the guide surface opposite the water inlet hole, and the guide surface forming a guide channel with the inner wall of the water inlet section, the cross-section of the guide channel gradually increasing in the direction close to the impeller. This utility model can reduce shaking and vibration during propulsion, improving the smoothness of propulsion.