43results about How to "Change gap" patented technology

The present invention discloses a pretreatment device for defatting animal meat residue to produce meat and bone meal, which relates to the technical field of meat and bone meal production, and comprises a treatment box, the top of which is fixedly connected to a feed frame, one side of which is rotatably provided with a slide plate for loading materials and sliding and feeding the materials, the slide plate being arranged at an angle, and the end of the slide plate located inside the feed frame being inclined downward, a limiting airbag being arranged at the end of the slide plate located inside the feed frame, and when the end of the slide plate located inside the feed frame is inclined downward and moves, the limiting airbag contracts to facilitate feeding. The pretreatment device for defatting animal meat residue to produce meat and bone meal is provided with structures such as a slide plate, a guide plate, and a limiting airbag, and the slide plate cooperates with the guide plate to prevent the splashing of hard materials, thereby improving the safety of the use of the pretreatment device; during the feeding process, the slide plate swings back and forth, and with the cooperation of the limiting airbag, periodic interval feeding is achieved, thereby improving the efficiency of material crushing.

The utility model relates to condensate pump technical field discloses a variable frequency condensate pump damping device, including cylindrical sealing box, four square distribution's baffle are fixedly connected with in the cylindrical sealing box, be provided with four cuboid sealing space between four baffle, each baffle with the semicircle arc sealing space of cylindrical sealing box inner wall is provided with, the inside of four cuboid sealing space is filled with a plurality of glass beads, the baffle outer wall with the cylindrical sealing box inner wall all are provided with T -shaped sliding slot, T -shaped sliding slot inner wall slidingly connected with T -shaped sliding block, fixedly connected with semicircle arc iron sheet between similar two T -shaped sliding blocks, fill a large number of glass beads in semicircle arc sealing space and four cuboid sealing space inside, when vibration energy transmission, glass beads pass through intergranular impact, friction and the contact with the space inner wall, quickly convert vibration energy into heat energy consumption, weaken vibration intensity from the source.

The utility model discloses a vibrating type traditional Chinese medicinal material digging shovel which comprises a bucket, an installation plate is fixedly installed on the outer surface of the bucket, two pin shaft installation holes are formed in the surface of the installation plate, detachable shovel teeth are installed on the lower surface of the bucket, a soil leakage window is formed in the bottom of the bucket, and a leakage net plate is movably installed in the soil leakage window. A hydraulic motor is fixedly installed outside the bucket and drives the screen plate to vibrate, an eccentric wheel is fixedly installed on a rotating shaft of the hydraulic motor, a connecting pin is fixedly installed at the end of the eccentric wheel, a transmission arm is rotationally installed on the surface of the connecting pin, and the transmission arm is rotationally connected with the screen plate. According to the digging shovel, the soil leakage window is formed in the bottom of the bucket, the movable leakage net plate is arranged in the soil leakage window, the hydraulic motor drives the leakage net plate to vibrate in a reciprocating mode in the operation process, soil blocks in the bucket are vibrated to be broken, medicinal materials are screened out, and therefore the vibration soil breaking and screening effects are achieved, convenience is provided for mechanical medicinal material digging, and the working efficiency is improved.

The invention relates to an anti-blocking self-cleaning vehicle and an anti-blocking sprayer for a transformer, the anti-blocking self-cleaning vehicle comprises the anti-blocking sprayer and further comprises a mounting box body, and one end of the mounting box body is matched with a cooling fin of the transformer; a spraying device is arranged at the top of the mounting box body and comprises an upper spraying pipe and a lower spraying pipe, the upper spraying pipe is provided with a plurality of anti-blocking sprayers, the anti-blocking sprayers are all in a fountain type spraying mode, the lower spraying pipe is provided with a plurality of high-pressure sprayers, catkins, dust and the like can be intercepted by forming a water curtain, and the catkins, the dust and the like can be prevented from being blocked. Meanwhile, the nozzle can be prevented from being blocked.

This utility model relates to the field of tea processing technology, specifically to a tea kneading machine with adjustable kneading force. It includes a frame, a kneading trough, and an adjustment mechanism. The adjustment mechanism includes a mounting platform, a moving frame, an adjusting screw, an adjusting nut, a spline sleeve, a spline shaft, a rotating shaft, a pressure plate, an indicating device, and a driving device. By adjusting the vertical position of the moving frame with the adjusting nut, the gap between the second arc-shaped protrusion and the first arc-shaped protrusion can be changed. This allows for adjustment of the gap between the pressure plate and the arc-shaped kneading surface of the kneading trough according to the amount of tea and the desired degree of kneading, thereby changing the kneading force. This solves the problem of the non-adjustable kneading force in existing tea kneading machines.

The invention belongs to the technical field of heating cigarette smoking sets, and discloses a heating cigarette smoking set and a heating cigarette smoking set control method.In the heating cigarette smoking set, a base is connected to a smoking set shell; the heating module extends into the containing cavity and comprises a shell and a heating core, the heating cigarette smoking set is provided with a heating cavity, the heating cavity is formed by the shell and a cavity in the base, the heating core is arranged in the heating cavity, connected to the base and used for generating heat, and the shell is provided with a through hole assembly for gas and heat to pass through. Therefore, heat emitted by the heating core can enter the containing cavity through the heating cavity and the through hole assembly in sequence to heat the cigarette, the vibration module can generate vibration relative to the base and is connected with the shell, the shell can be driven to vibrate through vibration of the vibration module, and then the cigarette is driven to vibrate. The gap of the fuming substrate is changed, the flow direction of airflow in the fuming substrate can be changed, in addition, the through hole assembly can be prevented from being blocked, and cleaning is convenient.

This invention discloses a fuel injector, including an electromagnet, a moving component, and a limiting component. The moving component includes a valve stem, a attracted component, and a valve core. The limiting component includes a first limiting part, a second limiting part, a first elastic part, and a magnetic component located between the first and second limiting parts. The moving component can move between a first position, a second position, and a third position. When in the first position, the electromagnet is de-energized, the attracted component separates from the magnetic component, and the valve core abuts against the valve seat. When in the second position, the electromagnet and the magnetic component have the same magnetism, the magnetic component abuts against the second limiting part, the attracted component abuts against the magnetic component, and the valve core and valve seat have a first gap. When in the third position, the electromagnet and the magnetic component have opposite magnetism, the magnetic component abuts against the first limiting part, the attracted component abuts against the magnetic component, and the valve core and valve seat have a second gap. The second gap is larger than the first gap. This allows for adjustment of the fuel injection quantity of the fuel injector.

The utility model discloses a generator set safety protection device which comprises a generator set, an oil tank is arranged on the generator set, a connecting pipe is arranged below the oil tank, one end of the connecting pipe is connected with a pressure relief device, the pressure relief device comprises a pressure relief pipe, a connecting rod, a fixing frame, a sealing plate, a fixing plate and a tension spring, and the connecting rod is arranged in the pressure relief pipe. The sealing plate is arranged on one side of the connecting rod, the fixing frame is installed in the pressure relief pipe, the tension spring is arranged on one side of the fixing plate, an adjusting mechanism is arranged on the inner side of the pressure relief pipe and comprises a control sleeve, a threaded sleeve, a matching rod, a matching groove, a threaded plate, an adaptive block, an adaptive sleeve, an adaptive groove, an ejector rod and a connecting frame, and the control sleeve is arranged on one side of the pressure relief pipe. The threaded sleeve and the threaded plate are connected with the inner wall of the pressure relief pipe through threads, the matching rod is connected between the sealing plate and the connecting rod, the adaptive block is connected to one end of the connecting rod, the adaptive sleeve is connected to one end of the ejector rod, the adaptive groove is formed in the threaded plate, and the ejector rod is connected with the control sleeve through the connecting frame.

The invention relates to a testing device for flow characteristics of a regulating valve. The testing device comprises an executing mechanism, a connecting rod, a valve core seat, a valve core, a valve cover, an upper valve body, a lower valve body, a valve seat and a water outlet pipe, an executing rod of the executing mechanism is connected with one end of a connecting rod, the other end of the connecting rod is connected with one end of a valve element seat, a valve element sleeves the other end of the valve element seat, and the molded line of the outer wall of the valve element is wide in top and narrow in bottom. One end of the valve cover is connected with a shell of the executing mechanism, the other end of the valve cover is detachably connected with the top end of the upper valve body, the lower end of the upper valve body abuts against the upper end of the lower valve body, and the lower end of the lower valve body abuts against the upper end of the valve seat. The connecting rod, the valve core seat and the valve core are arranged in a cavity formed by the valve cover, the upper valve body, the lower valve body and the valve seat; the inner diameter of the valve seat is equal to the outer diameter of the upper part of the valve core; the valve seat is an incoming flow inlet; the water outlet pipe is detachably connected to the side wall of the lower valve body and communicates with the cavity through a first through hole in the side wall of the lower valve body. In the working process, the height of the valve element is adjusted through the executing mechanism so as to change the gap between the valve element and the valve seat; by replacing the upper valve body, the lower valve body, the valve seat and the valve core, the flow characteristic test of valves of different specifications can be adapted. The device is short in manufacturing period and flexible to assemble, and the testing cost can be greatly reduced.

The utility model discloses a guide wheel structure capable of adjusting the distance from a guide beam, a guide wheel is arranged on one side of the guide beam, the guide wheel is rotatably connected with a sleeve, a flange is arranged at the upper end of the sleeve, a mounting plate is arranged below the guide wheel, and the flange is detachably connected with the mounting plate. The structure is simple, adjustment is convenient, and the distance between the guide wheel and the guide beam can be adjusted.

The utility model relates to the technical field of electronic components, and discloses a positioning fixture for welding electronic components, which comprises a base, a supporting plate is fixedly connected to the rear end of the top side of the base, a sliding block is connected to the front side of the supporting plate through a supporting frame, and a fixing groove is formed in the middle end of the front side of the supporting plate. The interior of the fixing groove is connected with the rear side of the supporting frame through a gear set, a clamping assembly is arranged at the front end of the sliding block, sliding grooves are formed in the upper side and the lower side of the sliding block, and fixing blocks are fixedly connected to the left end and the right end of the sliding block. According to the circuit board clamping device, the motor drives the gear and the tooth piece to be meshed with each other, so that the height of the sliding block is controlled to be adjusted, and the height of a clamped circuit board is adjusted; and meanwhile, the clamping blocks are pulled to compress the springs, so that the gap between the two clamping blocks is changed, and the circuit boards with different sizes are clamped through the two limiting shafts.

The utility model discloses a novel vertical mill separator which comprises a motor, a speed reducer, a mill outlet, a speed reducer output shaft, a labyrinth seal, a stationary blade and a separator rotor blade, the labyrinth seal comprises a labyrinth seal I, a labyrinth seal II, a labyrinth seal III and a labyrinth seal IV, the labyrinth seal III is a stationary seal and is additionally arranged on the inner side of the labyrinth seal I, and the labyrinth seal IV is a stationary seal and is additionally arranged on the inner side of the labyrinth seal II. The labyrinth seal IV is a dynamic seal and is additionally arranged on the inner side of the labyrinth seal II, so that a labyrinth seal airflow channel of the vertical mill separator becomes complicated, and the phenomenon that powder materials run thick when gas is conveyed into a rotor of the separator is effectively eradicated; the redirection blades are additionally arranged on the rotor blades of the separator, gaps of the rotor blades are changed, and the direction of airflow entering the rotor blades is changed, so that on the premise of ensuring the qualified rate of products, the rotating speed of the rotor of the separator is effectively reduced, the efficiency of the separator is improved, the pressure difference in a mill is controlled, and the running power of a system fan is reduced; the fineness, the specific surface area and the product energy consumption are greatly improved.

The application provides a continuous miner storage and transportation vehicle and a continuous mining system. The continuous miner storage and transportation vehicle comprises a support member, a scraper conveyor and a turnover member. The support member has a bearing part and a walking part for driving the bearing part to follow the walking of the miner. The scraper conveyor is arranged on the bearing part and is used for transferring the ore temporarily stored in the bearing part, i.e. the mined ore falls into the bearing part and is then transferred by the scraper conveyor. The whole process realizes continuous transportation of the ore and improves the mining efficiency of the continuous miner. The turnover member is arranged on the path of the ore falling from the bearing part to the scraper conveyor. The turnover member has a plurality of turnover parts arranged at intervals and a driving part for driving the turnover parts to turn. The driving part drives the turnover parts to rotate and changes the gap between adjacent turnover parts, so as to control the amount of ore falling from the bearing space to the scraper conveyor and prevent the ore gravity from directly pressing on the scraper conveyor, thereby preventing the technical problem that the scraper conveyor cannot be started.

The utility model relates to the technical field of roller way conveying equipment, and discloses adjustable roller way conveying equipment which comprises an operation table, a first fixing base is fixedly installed on one side of the operation table, a conveying roller is rotationally installed at the top of the first fixing base through an installation base, and a fluted disc is fixedly installed at the front end of the conveying roller. A moving seat is movably mounted on one side of the first fixing seat, a motor is fixedly mounted in the limiting column, a rotating roller is rotatably mounted at the output end of the motor, and a plurality of driving discs are movably mounted on the surface of the rotating roller. The gap between roller ways can be changed through mutual cooperation of the installation column, the movable rod, the movable column, the limiting base, the limiting screw rod and the movable base, flexible adjustment can be carried out according to actual needs, and meanwhile the multiple sets of driving discs are controlled through the motor; uniform rotation of the roller ways on each set of moving seats can be achieved, and therefore stability and reliability of materials in the conveying process are guaranteed.

The utility model discloses a kind of microbial organic fertilizer production devices for improving saline-alkali soil, including cylinder, feed inlet, discharge port, stirring mechanism, grinding mechanism, discharge mechanism, inner cylinder;Feed inlet is located at the top of cylinder;Discharge port is located on the side wall of cylinder close to bottom;Inner cylinder is fixed in the inside of cylinder, stirring mechanism, grinding mechanism are all installed in the inside of inner cylinder, stirring mechanism is located above grinding mechanism;Discharge mechanism is installed in the inside of cylinder below inner cylinder;Supporting plate is fixed on the side wall of inner cylinder, main shaft both ends are rotatably connected on cylinder and supporting plate respectively;Fixed frame is equipped with several, evenly fixed on the side wall of main shaft, stirring rod is rotatably connected on fixed frame;Stirring claw is connected on stirring rod.The utility model can carry out three-dimensional stirring to fertilizer;So that raw materials are evenly mixed, fermentation of raw materials is beneficial;It can cool down in the inside of inner cylinder, prevent temperature from being too high due to raw materials fermentation in the inside of inner cylinder.

The invention discloses a double-shaft concrete processing stirring device which comprises a base, a charging barrel and a vertical rod, the charging barrel and the vertical rod are respectively mounted on the base, and a discharging mechanism is arranged at the bottom of the charging barrel. Raw materials are fed into the charging barrel through the feeding mechanism, the stirring driving mechanism drives the stirring mechanism to stir the raw materials, in the process, the scraping driving mechanism drives the scraping shaft to rotate, and the scraping shaft drives the side vertical plate, the bottom inclined plate and the angle-adjustable scraping plate mechanism on the side vertical plate and the bottom inclined plate to scrape materials attached to the side wall and the bottom of the charging barrel. The angle of the scraping plate can be adjusted by adjusting the fastening nut and the rotating shaft, so that the gap between the scraping plate and the charging barrel is changed, the applicability is improved, collision is avoided, and the raw materials can be stirred and mixed from the edge part; the heights of the machine base and the scraping and stirring mechanism on the machine base are adjusted through the matching of the lead screw and the threaded sleeve, so that vertical stirring is realized, and higher stirring efficiency is ensured.

This utility model relates to the field of roller pressing and traction machine technology, and discloses a roller pressing and traction machine for producing fiber mesh. It includes a fixed frame, with the upper end of the fixed frame secured to the roller pressing and traction machine by multiple bolts. Roller pressing and traction adjustment components are provided at both ends of the upper part of the roller pressing and traction machine. Each roller pressing and traction adjustment component includes multiple synchronous cylinders, the output ends of which penetrate through a steel plate on the upper part of the roller pressing and traction machine and are fixedly connected to sliders. The synchronous cylinders are all bolted to the steel plates on both sides of the upper part of the roller pressing and traction machine, and the sliders slide against the upper part of the roller pressing and traction machine on both sides. In this utility model, the fixed frame provides stable support for the roller pressing and traction machine, ensuring stability during operation. The roller pressing and traction adjustment components at both ends can independently control the roller pressing gap, allowing for subsequent adjustment according to different fiber mesh models.

The utility model relates to a smashing device for nut processing. The smashing device comprises a rack, a smashing bin is fixed to the rack, a hopper is fixed to the smashing bin, a feeding mechanism is arranged in the hopper, and a smashing mechanism is arranged in the smashing bin. The feeding mechanism comprises an overturning frame, the middle of the overturning frame is rotationally arranged on the rack through a rotating shaft, a connecting plate extending into the hopper is rotationally arranged on the overturning frame through a rotating shaft, a supporting plate is fixed to the end of the connecting plate, and the other end of the supporting plate partially extends out of the hopper. The smashing mechanism comprises two pairs of smashing shafts rotationally arranged in the smashing bin through rotating shafts, and smashing rollers are fixed to the outer sides of the smashing shafts. The overturning frame rotates, the mounting plate at one end of the overturning frame extrudes the pressure spring, the supporting plate can be driven by the connecting plate to shake left and right in the hopper, so that nuts on the supporting plate can uniformly fall off from a gap between the supporting plate and the inner wall of the hopper, and the nuts gradually and slowly fall into the crushing bin to be uniformly crushed.

The utility model relates to the related technical field of construction waste recycling, in particular to a construction waste recycling treatment system which comprises a sorting mechanism, a smashing mechanism, a screening mechanism and the like, the smashing mechanism comprises a base and a supporting frame fixedly installed on the base, a discharging groove is formed in the supporting frame, and the discharging groove is communicated with the sorting mechanism. The mounting seat is mounted on the base, a blocking piece for controlling the feeding groove to be opened or closed is mounted on the mounting seat, and the crushing device is mounted on the supporting frame; the filtering device is mounted on the base; the filtering device is installed on the base, the crushing device is installed on the base, the movable driving part is installed on the base, connected with the filtering device and connected with the crushing device through a one-way transmission part, and construction waste falls into the filtering device after being preliminarily crushed by the crushing device, and the filtering device is controlled to convey the unfiltered construction waste into the discharging groove; and meanwhile, gaps between the crushing devices are changed, multiple crushing work is achieved, and the crushing sizes are different.

This utility model discloses a raw material mixing device for producing softened dashboard skin for automobiles, including a mixing box and support legs located at its four corners. A feed hopper and a discharge pipe are fixedly connected to the top and bottom center of the mixing box, respectively. A horizontally arranged rotating rod is rotatably connected to the upper front side of the mixing box. A crushing roller is fixedly fitted onto the inner surface of the mixing box via the rotating rod. A U-shaped plate is located on the rear side of the mixing box, and horizontally arranged rotating rods are rotatably connected to the left and right sides of the inner wall of the U-shaped plate. This device has the advantages of high-efficiency crushing and good mixing effect. The multi-stage crushing mechanism ensures that the raw materials can be uniformly crushed to an appropriate particle size, thereby guaranteeing the quality and efficiency of mixing. By adjusting the relative position and pressure between the crushing rollers, it can flexibly handle different types of raw materials, improving the applicability of the device.

The utility model discloses a fishway grating mechanism in the technical field of water resource engineering, which comprises a fixing mechanism, the fixing mechanism comprises two groups of fixing frames, a supporting column is rotatably connected between the two groups of fixing frames, an adjusting mechanism is arranged in front of the supporting column, a fence is arranged on the adjusting mechanism, and the adjusting mechanism is connected with the fixing frame. A rotating mechanism is arranged on the left side of the fixing frame on the left side, fixing bases are fixedly connected to the bottoms of the two sets of fixing frames, the adjusting mechanism comprises a sliding groove, the sliding groove is formed in front of a supporting column, a fixing column is fixedly connected to the left side of the front of the supporting column, and two sets of sliding rods are arranged in the sliding groove; the problems that when the gaps of the fences are adjusted by replacing the fences, troubles are caused, manpower is consumed, fishes in a fishway need to be blocked during replacement, and the passing efficiency of the fishes is affected are solved.

The utility model relates to the technical field of casting machines, in particular to a thickness adjusting mechanism of a casting machine, which comprises a casting machine die head, adjusting mechanisms are arranged on two sides of a runner outlet of the casting machine die head, each adjusting mechanism comprises an adjusting cylinder and an adjusting plate, the adjusting cylinders are fixed on the outer side wall of the casting machine die head, and the adjusting plates are fixed on the outer side wall of the casting machine die head. The adjusting plates are fixedly connected with piston rods of the adjusting air cylinders, the number of the adjusting plates is two, a certain gap is formed between the ends of the two adjusting plates so that a cast film can flow out, and the ends of the adjusting plates are arranged in an arc shape. The tape casting machine has the beneficial effect that the applicability of the tape casting machine is improved.

The utility model relates to the technical field of packaging barrel conveying, in particular to a multidirectional conveying mechanism applied to packaging barrels, which comprises a main frame, an embedded adjusting guide rail is fixedly assembled in the main frame, and an upper turnover control frame is movably mounted on one side of the upper surface of the main frame through a shaft. A first overturning adjusting frame and a second overturning adjusting frame are movably assembled on the upper surface of the main vehicle frame through embedded adjusting guide rails. According to the multidirectional material conveying mechanism applied to the packaging barrel, the design of the multidirectional adjustable overturning adjusting frame is adopted, so that the safety and the stability of the packaging barrel can be improved when the packaging barrel is placed; the detachable supporting partition plate is fixedly assembled in the overturning adjusting frame, a proper structure can be selected according to different packaging barrel specifications, the adaptation effect is improved, and stability is enhanced.

The utility model relates to a constant-speed heat exchanger and belongs to the field of heat exchangers. Comprising tube boxes, a shell, tube plates, baffle plates and heat exchange tubes, the tube boxes are arranged at the two ends of the shell, the baffle plates and the heat exchange tubes are all arranged in the shell, the heat exchange tubes are evenly distributed in the shell through the tube plates, constant-speed rollers are axially arranged in the heat exchange tubes, positioning hexsteel is arranged at the two ends of each constant-speed roller, and the constant-speed rollers are fixed through the positioning hexsteel. And the positioning hexsteel is connected with the tube plate through a connecting assembly. The utility model stabilizes the flow velocity of the medium in the heat exchange tube, prevents the equipment from being damaged, and ensures the safe operation of the whole set of chemical equipment.

The application discloses a kind of printing and dyeing wastewater standard discharge processing mechanism, including air floatation tank, sedimentation tank and collection tank, the air floatation tank outside is equipped with water inlet, the outside of the sedimentation tank is equipped with water outlet;The lower end of the air floatation tank is fixed with air outlet plate, for generating the bubble of upward motion.This application separates a part of suspended solids from wastewater by entering into air floatation tank, the bubble pushes the particles on filter plate one upward, avoids blocking filter plate one, also avoids making particles settle, makes particles be close to the lower end of wastewater, it is convenient to transmit wastewater with particles from separation pipe frame to sedimentation tank, it is convenient for subsequent processing;Particles are originally close to the lower end of sedimentation tank, filter plate two is affected by the gas that is blown out from air outlet hole by fine tube, the particles that are clamped to filter plate two hole are pushed downward, avoid blocking filter plate two, keep smooth, avoid wastewater being blocked.

The present invention provides an octane storage device for controlling the filling flow rate, and relates to the field of dangerous goods storage. The octane storage device for controlling the filling flow rate comprises a storage barrel, a support mechanism is fixedly installed inside the feed port of the storage barrel, a control mechanism is rotatably connected inside the support mechanism, a buffer mechanism is fixedly installed on the inner bottom wall of the storage barrel below the support mechanism, the buffer mechanism is control-connected with the control mechanism, and the support mechanism comprises a fixed sleeve. The octane storage device for controlling the filling flow rate can control the pressure of the bottom end of the airflow collar by the speed of the octane inflow, and then drive the speed-limiting ball to rotate by the piston and the rack plate, so as to change the gap between the control groove and the fixed sleeve, and then reduce the flow rate, so as to achieve the effect of controlling the octane flow rate, and solve the problem of easy explosion caused by the collision of the octane flow rate with the inner wall of the device in the prior art.

The utility model discloses a high-temperature powder heat exchanger. The high-temperature powder heat exchanger comprises a shell, wherein the shell comprises a cavity extending in the first direction; a feed port is formed in the top of the shell edge, and a discharge port is formed in the bottom of the shell edge. The heat exchange device is arranged in the shell and comprises a plate bundle assembly. The plate bundle assembly comprises a medium runner and a powder runner. The plate bundle assembly comprises a plurality of heat exchange plates arranged at intervals in the second direction. A powder runner is defined by every two adjacent heat exchange plates. Each heat exchange plate extends in the first direction and is provided with a medium flow channel. A small water inlet pipe and a small water outlet pipe are arranged on one side, in the second direction, of each heat exchange plate. In the first direction, the small water inlet pipe and the small water outlet pipe are arranged close to the discharging port, and the small water outlet pipe is arranged above the small water inlet pipe. And the cooling water inlet and outlet small pipes are close as much as possible to reduce the swell difference between the two small pipes, thereby ensuring the safe use of the high-temperature powder heat exchanger.

This utility model belongs to the field of grinding equipment, specifically relating to a grinding device for fishmeal processing. It includes a tank body with multiple support rods fixedly connected to its outer side. A feed inlet is fixedly connected to the top of the tank body. A motor is fixedly installed on the top of the tank body, to the left of the feed inlet, and the output end of the motor is rotatably connected to the tank body. This utility model utilizes the design of the motor; the output end of the motor can drive the square rods to rotate, thereby enabling the rotation of the connecting sleeve and the grinding head. Combined with the function of the grinding base, this achieves the grinding of materials. Through the threaded engagement of the screw and the connecting block, the connecting block can move vertically when the screw rotates. The connecting block can drive the connecting ring to move, thereby adjusting the vertical height of the connecting sleeve. This changes the gap between the bottom of the grinding head and the inner wall of the grinding base, thus achieving the purpose of adjusting the grinding fineness.

The invention discloses a double-shaft corn stalk pulverizing and returning machine to the field, belonging to the technical field of agricultural machinery. The double-shaft corn stalk pulverizing and returning machine to the field comprises: a frame, on which a first gearbox and a second gearbox connected by a universal joint are arranged; a first pulverizing part, which is arranged inside the frame and is transmission-connected to the first gearbox; a second pulverizing part, which is also arranged inside the frame and is transmission-connected to the second gearbox, and the second pulverizing part is arranged at intervals from the first pulverizing part. The double-shaft corn stalk pulverizing and returning machine pulverizes corn stalks by using the first pulverizing part and the second pulverizing part. After the secondary pulverization, the pulverization effect is better, and the problem of low efficiency and easy occurrence of blade shaft entanglement failure when pulverizing stalks in existing straw returning equipment is solved.