130results about How to "Improve screening quality" patented technology

The invention relates to the technical field of powder screening, in particular to a stainless steel circular powder screening machine which comprises a vibrating screen body and a screen mesh. A bottom discharging opening of the feeding pipe corresponds to the outer edge of the screen, the bottom of the feeding pipe is connected with a partition plate, and the bottom face of the partition plate is connected with a vortex-shaped material pushing plate; the middle part of the feeding pipe is connected in series with a rotating pipe; the inner wall of the rotating pipe is fixedly connected with a spiral crushing blade; a rotation control assembly used for driving the feeding pipe, the partition plate and the material pushing plate to rotate synchronously and driving the rotating pipe to rotate relative to the feeding pipe is arranged on the vibrating screen body, and the rotating direction of the feeding pipe is consistent with the vortex direction of the material pushing plate; a discharging hole is formed in the middle of the screen and communicated with a coarse powder pipe, and a fine powder collecting plate is arranged in the vibrating screen body. According to the powder screening device, the powder accumulation condition can be improved, the retention time of powder on the screen can be prolonged, the screening quality can be improved, caked materials can be crushed, and waste can be reduced.

The utility model discloses a chemical raw material multi-layer screening and grading device, which belongs to the technical field of chemical raw material screening treatment, and adopts the technical scheme that the chemical raw material multi-layer screening and grading device comprises a screening box, the top of the screening box is communicated with a hopper, and a scattered screening mechanism is arranged in the screening box. When the chemical raw materials are added into the screening box through the hopper, the chemical raw materials can fall onto the carrying net in the disc frame, at the moment, the motor drives the shaft rod to drive the scattering rods to rotate, the chemical raw materials which are extruded and caked for a long time can be effectively scattered, large blocks are prevented from hindering a subsequent screening path, and the scattered chemical raw materials are prevented from falling downwards; and then the raw materials are subjected to multi-layer screening through the primary screening structure driven by the shaft rod, enter the material guiding opening and are discharged into the re-filtering structure to be treated again, so that normal screening of all stages of screens is ensured, the screening efficiency is remarkably improved, accurate grading of the chemical raw materials with different particle sizes is ensured, and the screening quality is optimized.

The invention discloses a crushing and sieving device for preparing sodium dichloroisocyanurate powder, and relates to the technical field of preparation of sodium dichloroisocyanurate powder.The crushing and sieving device comprises a sieving box, a crushing box and mounting blocks, and the mounting blocks are fixedly mounted on the inner wall of the sieving box; according to the sodium dichloroisocyanurate powder screening device, after being crushed, sodium dichloroisocyanurate powder enters the screening box and falls onto the inclined screening plate, the sodium dichloroisocyanurate powder moves in the inclined direction under the action of gravity, vibration generated by working of the crushing device is transmitted to the screening box and the screening plate, powder movement and screening are assisted, the screening efficiency is improved, and the screening effect is improved. Impact force and gravity generated when powder falls act on the elastic pieces to vibrate the elastic pieces, the vibration effect of the screening plate is enhanced, powder accumulation can be prevented through reset vibration of the elastic pieces, the powder is loosened and easy to flow, synchronous screening is promoted when the powder slides down, the screening efficiency and quality are improved, materials are accurately classified and screened according to the particle size, and high-quality raw materials are provided for subsequent procedures.

The utility model discloses quartz sand filter material grading and screening equipment, which comprises a box body, a first screening plate, a second screening plate, a first screening plate and a second screening plate, and the inclined baffle is obliquely arranged between the first screening plate and the second screening plate to bear quartz sand falling from the first screening plate, and the low-position end of the inclined baffle faces the high-position end of the second screening plate. According to the quartz sand filter material grading and screening equipment provided by the utility model, quartz sand particles screened from the first screening plate can be prevented from directly impacting the second screening plate and directly popping out of the second discharging hole by utilizing the existence of the inclined baffle, so that the screening quality of quartz sand is improved; and secondly, the inclined baffle can guide the falling quartz sand particles to roll towards the high-position end of the second screening plate, so that the horizontal moving distance of the quartz sand particles on the second screening plate is increased, and the screening quality of the small-particle quartz sand is improved.

The invention belongs to the technical field of breed duck feed production, and particularly relates to a breed duck feed production wet feed crusher which comprises a barrel body, a feeding hopper is arranged at the upper end of the barrel body, supporting legs are fixedly connected to the lower portion of the barrel body, a discharging opening is formed in the barrel body, and a crushing device and a screening device are arranged on the barrel body. And a feeding device is arranged on the side edge of the barrel body. According to the wet material crusher for breeding duck feed production, a crushing cutter is driven by a first motor to rotate, breeding duck feed is rapidly and evenly crushed, then the crushed feed falls into a conical filter screen to be screened, large-particle impurities are effectively removed, large particles obtained after screening are conveyed through an auger, the feed is fed into a feeding pipe, and the feeding pipe is used for feeding the breeding duck feed. And then the feed is conveyed into the barrel body through the feeding pipe, so that the crushing cutter performs secondary crushing on the large-particle feed, the secondary crushing mechanism ensures the uniformity and consistency of the feed particles, and the overall crushing quality is remarkably improved.

The utility model relates to the technical field of seed screening, and discloses a wheat seed screening device which solves the problems that an existing wheat seed screening device is poor in screening effect and affects the quality of wheat seeds, and comprises a screening box, a feeding pipe is connected to one side of the upper end of the screening box, and a discharging pipe is connected to one side of the lower end of the screening box. According to the seed screening device, the double-shaft motor drives the transmission rod to rotate, the transmission rod drives the cam to rotate, when the cam continuously rotates, the screening frame continuously reciprocates under the cooperation of the spring, and then raw materials in the screening frame continuously vibrate, so that seeds in the screening frame are screened, and the screened seeds fall into the shaking frame; the transmission rod drives the rotating disc to rotate, when the rotating disc continuously rotates, the moving plate drives the shaking frame to move left and right, the seeds in the shaking frame shake left and right, and under the double screening effect of the screening assembly, the seed screening quality is improved.

The utility model relates to the technical field of screening equipment, and discloses a limestone crushing and screening device with an anti-blocking structure, which comprises a crushing box, a first motor is fixedly mounted on the outer wall of the crushing box, a rotating wheel is fixedly assembled on a power output shaft of the first motor, and a belt is in rolling connection with the outer wall of the rotating wheel. A driven wheel is in rolling connection with the inner wall of the belt, a crushing rod is fixedly installed on the outer wall of a rotating wheel, a screening box is fixedly installed at the bottom of the crushing box, and a baffle is in sliding connection with the inner wall of the screening box. According to the limestone crushing and screening device with the anti-blocking structure, a controller is controlled, a first motor is used for driving a rotating wheel to rotate, and the rotating wheel drives a driven wheel to rotate through a belt, so that one-to-three mechanical transmission of the device is achieved, and then two crushing rods effectively rotate to crush limestone; and the limestone crushing efficiency is improved, and the blocking phenomenon in the screening process is avoided.

The utility model discloses a slurry separating and recycling device which solves the problems that in the prior art, slurry separating equipment is large in occupied area, and separated slurry cannot be directly recycled. The device comprises a muck collecting box, a separated slurry collecting box and a slurry box, a vibration screening mechanism is arranged on the muck collecting box and the separated slurry collecting box, a rotational flow screening mechanism is arranged above the vibration screening mechanism, a slag outlet of the vibration screening mechanism corresponds to the muck collecting box, and a slurry outlet of the vibration screening mechanism corresponds to the separated slurry collecting box. Slurry in the separated slurry collecting box enters the rotational flow screening mechanism under the action of the slurry pump, a slag outlet of the rotational flow screening mechanism corresponds to the muck collecting box, and a slurry outlet is connected with a stirring mechanism arranged on the slurry box and communicated with the slurry box. And the stirring mechanism is provided with a filler funnel and a filling port. Compared with the prior art, the slurry separation equipment is optimized, the cyclic utilization of slurry can be realized, the integration level is high, and the occupied area of the equipment is reduced.

The utility model discloses an anti-caking device for baking soda production, which relates to the field of baking soda production and comprises a cooling hopper, a conveying mechanism and a cooling unit, a discharge pipe is arranged at the bottom of the cooling hopper, a sieve plate is obliquely mounted in the cooling hopper, and a coarse material port is arranged on one side wall of the cooling hopper corresponding to the lower end of the sieve plate. Cold air is blown out through the multiple air outlet heads and makes contact with powdery baking soda falling from the discharging pipe, on one hand, the temperature of the powdery baking soda can be reduced, the situation that the powdery baking soda is agglomerated after being packaged is avoided, on the other hand, the powdery baking soda is blown away through the cold air, and the powdery baking soda is scattered on the sieve plate; the accumulation of powdery baking soda on the sieve plate is reduced, the screening quality is improved, the screening efficiency is improved, cold air is blown out from the air outlet head, and the blocky baking soda can flow to the coarse material opening from the sieve plate.

The utility model relates to the technical field of sorting machines, and discloses a crop grading sorting machine. The crop grading sorting machine comprises a sorting pipe and a plurality of fixing blocks arranged below the sorting pipe, a driving motor is started, the driving motor can drive a transmission gear to rotate through an output shaft, the transmission gear can drive the sorting pipe to rotate through a meshing rack, then fruits are poured into a hopper, the fruits roll into the sorting pipe through a feeding pipe, and then the fruits are sorted through the sorting pipe. When the sorting pipe rotates, the fruits can be sequentially leaked out of the sieve holes from small to large, the situation that the fruits are stacked together to block the sieve holes can be prevented by rotating the sorting pipe, the practicability of the device is improved, when the fruits fall on a damping plate, the damping plate presses a supporting rod downwards, the supporting rod presses a fixing plate downwards, and an elastic piece can absorb pressure through self elasticity; and therefore, the fruits are prevented from being smashed, and the screening quality of the device is improved.

The utility model relates to the technical field of solid feed processing, and discloses a solid feed additive screening and filtering device which comprises a processing box, a collecting mechanism and a screening mechanism are arranged in the processing box, the screening mechanism comprises a motor, the motor is fixedly connected to the inner wall of the processing box, and the collecting mechanism and the screening mechanism are arranged in the processing box. An output shaft is fixedly connected to the output end of the motor, a transmission assembly is arranged on the outer wall of the output shaft, a supporting shaft is arranged in the transmission assembly, a cam is fixedly connected to the outer wall of the supporting shaft, a long rod is fixedly connected to the inner wall of the treatment box, and a supporting plate is fixedly connected to the outer wall of the long rod. According to the solid feed additive screening and filtering device, through the arranged screening mechanism, the screening frame can be driven to do reciprocating motion under the elastic action of the spring, solid feed in the screening frame is screened, the good screening quality is achieved, the influence on solid feed additive finished products is reduced, and the practicability of the device is improved.

The invention discloses a screening and separating device and method for corn flour processing, and belongs to the technical field of crop screening devices and methods.The screening and separating device comprises a smashing mechanism, the smashing mechanism is installed on a bottom plate, and the smashing mechanism is used for processing corn kernels into powder and conveying the powder into a filtering and separating mechanism through a powder conveying pump; the filtering and separating mechanism comprises a vibration box, the periphery of the bottom end of the vibration box is connected with a bottom plate through first springs, vibration motors matched with the vibration box are installed at the two ends of the outer wall of the vibration box, and first stirring blades fixed to a rotating shaft are arranged under a material guiding opening in the vibration box; and a splitter plate arranged on the inner wall of the vibration box is arranged below the first stirring blade. The technical problems that raw materials are difficult to spread quickly and uniformly only through vibration in the screening process, so that the screening efficiency is affected, raw materials at the top of the stacking position cannot be effectively screened possibly due to raw material stacking, and the raw materials cannot be effectively and comprehensively spread can be solved.

The invention provides a cross sieve screening parameter optimization method and a cross sieve screening parameter optimization system based on an (IGWO) algorithm, a back propagation neural network (Back-Propagation Neural Network) and proportional integral derivative (PID) control, and relates to a cross sieve screening parameter optimization method and a cross sieve screening parameter optimization system based on the IGWO algorithm, the back propagation Neural Network (Back-Propagation Neural Derivative (PID). The system comprises a cross sieve, a control system, a communication unit, a monitoring system and an upper computer, the monitoring system monitors whether the screening parameters of the cross screen meet the optimal screening condition or not; when the optimal screening condition is not met, the upper computer optimizes the screening parameters through a preset IGWO-BP-PID algorithm and transmits the optimized screening parameters to a control system; and the control system adjusts the action of a mechanical system in the cross screen according to the optimized screening parameters to enable the mechanical system to meet the optimal screening condition. By means of the system, it can be guaranteed that under different working conditions, a mechanical system in the cross screen can be automatically and quantitatively adjusted, different screen face inclination angles are formed, smooth screening is guaranteed, the system can run in a full-automatic mode, and the screening efficiency is further improved.

The utility model discloses a dry red pepper screening device which comprises a screening frame which is installed on a supporting frame through an elastic piece and provided with two discharging ports. The screening plate is fixed in the screening frame and extends to the position of the discharging opening in the outer end, the interior of the screening frame is divided into an upper area and a lower area, and the two discharging openings correspond to the two areas respectively; the vibration device is arranged at the bottom of the screening frame to drive the screening frame to vibrate; the first sweeping assembly is rotationally arranged on the screening frame, so that the materials in the screening frame can be conveniently turned over, and impurities can be conveniently removed; the protective shell is arranged on the outer side of the cleaning assembly in a sleeving mode to prevent the flipped materials and sundries from flying out, and meanwhile an opening and closing plate facilitating cleaning of the cleaning assembly is movably arranged on the protective shell; and the second cleaning assembly is arranged on the screening frame on the outer side of the protective shell and is close to the discharging opening. According to the screening device, the dried chilies can be put into the screening frame for efficient screening through the screening plate and the sweeping assembly, and light impurities, pebbles and other heavy impurities are effectively removed.

The utility model discloses a screening device for traditional Chinese medicinal material processing, and relates to the technical field of screening devices. The utility model comprises a rectangular bottom plate, and also comprises a main body part arranged above the rectangular bottom plate; the collecting part is mounted on the main body part; the screening part is mounted at the top of the rectangular bottom plate; wherein the top of the screening part is connected with the main body part and is used for enabling the main body part to generate vibration. Furthermore, the main body part comprises a sieve plate arranged above the rectangular bottom plate, and bulges are arranged on the inner wall of the sieve plate. By arranging the collecting part, the problems that in the using process of an existing screening device, screened traditional Chinese medicinal materials are inconvenient to collect, the screened traditional Chinese medicinal materials are scattered and stacked, the workload and operation difficulty of manual picking are increased, new impurities are mixed into the traditional Chinese medicinal materials or the traditional Chinese medicinal materials are polluted due to the fact that collection is not timely, and the traditional Chinese medicinal materials are wasted are solved. The purity of the medicinal materials is influenced.

The utility model discloses an impurity separating device which comprises an impurity removing box, a box door, a fan, a collecting box, a supporting column, a screening barrel, a rotating shaft installation base, a rotating shaft, a screening barrel door, a coupler and a motor. Compared with the prior art, the motor is adopted to drive the screening barrel to rotate, impurities and raw materials are screened through centrifugal force, the screened impurities are blown into the collecting box through the fan, the screening efficiency can be improved, the screening quality can be improved, and use is easy and convenient.

The utility model discloses a pet food particle forming, drying and screening system, and relates to the pet food processing field, the pet food particle forming, drying and screening system comprises a screening processing box, one side of the screening processing box is fixedly connected with a shell, the top of the shell is fixedly connected with a second motor, and an output shaft of the second motor is fixedly connected with a rotating rod through a coupler; a rotating disc is fixedly connected to the bottom end of the rotating rod, a connecting rod is movably connected to the bottom of the rotating disc, a bearing plate is movably connected to one end of the connecting rod, a first screen is fixedly connected to the outer wall of the bearing plate, a second screen is fixedly connected to the outer wall of the bearing plate, and a protruding plate is fixedly connected to the outer wall of the first screen. A limiting plate is fixedly connected to the inner wall of the screening processing box, by starting a second motor, a rotating disc fixedly connected to the bottom end of a rotating rod can rotate, a first screen and a second screen which are fixedly connected to the outer wall of a bearing plate move in a reciprocating mode, and the effect of conveniently conducting reciprocating multi-layer screening on pet food particles is achieved.

The utility model discloses a rice screening machine discharging structure based on rice production. The rice screening machine discharging structure comprises a discharging hourglass. The supporting bottom plate is fixedly connected to the interior of the discharging hourglass; the quantitative frame is connected to the supporting bottom plate in a sliding manner; the air cylinder is installed on the discharging hourglass, and the telescopic end of the air cylinder is fixedly connected with one side of the quantitative frame; the connecting plate is fixedly connected to the air cylinder; the filter screen is mounted in the blanking hourglass; the quantitative frame and the supporting bottom plate are arranged to be matched with rice in the discharging hourglass for quantitative discharging. Rice is added into the discharging hourglass, the weight of the rice falls into the quantifying frame, the rice is quantitatively stored, when the air cylinder is started, the quantifying frame is pushed forwards, and the bottom of the quantifying frame is separated from the supporting bottom plate, the rice in the quantifying frame falls onto the rice screening machine to be screened, and due to the structural design, the rice can be quantitatively discharged; and more rice is prevented from being discharged, and the screening quality of the rice screening machine is improved.

The invention discloses agricultural equipment for grain screening, and relates to the technical field of grain screening, the agricultural equipment comprises a fixed seat, two groups of mounting plates are symmetrically mounted on the two sides of the fixed seat, dampers are fixedly mounted at the bottoms of the two groups of mounting plates, and supporting legs are fixedly mounted at the bottoms of the two groups of dampers; a sieve plate is arranged on the upper portion of the interior of the fixing seat, a discharging plate is fixedly installed at the bottom of the sieve plate, the positioning rods are symmetrically installed in the fixing seat and located on the two sides of the discharging plate, fixing rods are symmetrically installed between the two positioning rods in each group, and movable sleeves are slidably connected to the outer portions of the fixing rods. According to the grain screening device, when grains are screened, after the grains fall onto the screening plate, the stacked grains can be flattened, excessive stacking of the grains is avoided, blocking of the screening plate is avoided, the contact area of the grains and the screening plate can be enlarged, the screening efficiency and the screening quality are improved, and practicability is improved.

This invention, entitled "A Distributed Hybrid Interleaved Batch Scheduling Method and System for Parallel Production Lines," belongs to the field of production line scheduling. It addresses the problem of minimizing inventory and stockout costs. The method includes: complete delivery based on vehicle model bill of materials; each production line comprises multiple sequentially connected stages, with the same set of dies only allowed on one production line at any given time; during the stamping stage, only one production line can utilize the stamping die to process the corresponding sub-batch; a consistent sub-batch partitioning strategy is adopted for the same batch, ensuring that the quantity and corresponding dimensions of each sub-batch remain unchanged in subsequent processing stages after partitioning; the dimensions between different sub-batches can be determined by the selected sub-batch partitioning rules; alternating processing of sub-batches from different batches is allowed on the same production line; each sub-batch can only be processed by one production line in each stage; the scheduling objective is to minimize the total sum of inventory and stockout costs while achieving complete delivery.

The utility model discloses a sand screening machine for constructional engineering. The sand screening machine comprises a shell, a sand storage box connected to a top plate of the shell, an intermittent quantitative discharging mechanism, a vibration screening mechanism and a driving mechanism connected to the outer wall of the shell, wherein the intermittent quantitative discharging mechanism and the vibration screening mechanism are arranged in the shell. And a discharging opening penetrating through the top plate of the shell and the sand storage box is formed in the joint of the top plate of the shell and the sand storage box. The feeding end of the intermittent quantitative discharging mechanism communicates with the discharging opening, the power input end of the intermittent quantitative discharging mechanism is connected with the driving mechanism so as to intermittently rotate in the circumferential direction under the action of the driving mechanism, and then quantitative sand materials are intermittently discharged into the vibration screening mechanism below. The shell is provided with a first discharging port and a second discharging port which communicate with the two discharging ends of the vibration screening mechanism correspondingly, and the vibration screening mechanism is used for conducting vibration screening on sand falling into the vibration screening mechanism so that miscellaneous materials and qualified materials can be discharged from the first discharging port and the second discharging port correspondingly. According to the novel sand screening machine, the sand screening efficiency and the sand screening quality can be improved, and the maintenance and repair workload is reduced.

The utility model discloses a kind of vegetable processing screening equipment, the utility model relates to vegetable processing technical field;Including: feed hopper, support structure, the top of the support structure is fixedly connected with screening structure, the screening structure includes support plate, the bottom of the support plate is fixedly connected with the top of support structure, the top of the support plate is fixedly connected with driving motor, the output shaft both sides of the driving motor are fixedly connected with cam, the outer wall of the cam is rotatably connected with screening rod, the end of the screening rod away from cam is fixedly connected with filter structure, the bottom of the filter structure is fixedly connected with eight elastic sheets symmetrically, rotate by driving motor cam, make filter structure produce stable and efficient vibration.This vibration design can effectively avoid vegetables to accumulate on screen plate, let vegetables be fully dispersed, ensure that smaller impurities and unqualified vegetable pieces can smoothly pass through sieve hole.

The utility model discloses a clover crusher with a protection function, which comprises a supporting seat and a crushing mechanism driven gear, the upper surface of the supporting seat is provided with a crusher body, the upper end of the crusher body is provided with a feed port, the clover crusher also comprises a chute and a protection mechanism, the rear end of a cover plate is internally provided with a telescopic rod in a sliding manner, and the cover plate is provided with an opening. A recycling mechanism is installed on the left side of the pulverizer body, the output end of the motor is connected with a driving gear, the right end of the driving gear is connected with a driven gear in an engaged mode, and pulverizing rollers are installed at the front end of the driving gear and the front end of the driven gear correspondingly. According to the alfalfa pulverizer with the protection function, the protection mechanism is arranged to play a role in protecting the feeding port, dust dissipation is prevented, cleaning work is increased, and harm to human health is avoided, the discharging mechanism is arranged to assist alfalfa discharging and prevent blockage of the discharging port, the recycling mechanism is arranged to facilitate recycling of alfalfa for re-pulverizing, the pulverizing efficiency is improved, and waste is reduced.

The utility model relates to the technical field of medicinal material manufacturing equipment, in particular to a medicinal material pretreatment device. The device comprises a base, a treatment chamber used for crushing medicinal materials is arranged above the base, at least two telescopic supporting rods are arranged between the base and the treatment chamber and arranged at the two ends of the treatment chamber in the length direction of the treatment chamber, one end of each telescopic supporting rod is fixedly connected to the base, and the other end of each telescopic supporting rod is fixedly connected with the treatment chamber. A grinding mechanism used for grinding medicinal materials is arranged in the processing cavity, the discharging direction of the grinding mechanism is arranged in the length direction of the processing cavity, a discharging port used for discharging the ground medicinal materials is formed in one end of the processing cavity, a hopper used for placing the medicinal materials is arranged at the other end of the processing cavity, a medicinal powder collecting chamber is arranged at the discharging port, and a screen is arranged at an inlet of the medicinal powder collecting chamber. The screen is connected with a channel communicated with the hopper and a controller, and the controller is connected with the telescopic supporting rods.

The invention discloses a processing technology and a preparation device for polygonatum rice, comprising a fuselage, a plurality of supports for supporting the fuselage are arranged at the bottom of the fuselage, a feed pipe for the polygonatum rice to flow is arranged above the fuselage, an extraction pump is arranged outside the feed pipe, a vibration screen for receiving the polygonatum rice is arranged inside the fuselage, the vibration screen comprises a raised portion and a flat portion, a plurality of sieve holes for secondary rice to pass through are arranged on the surface of the vibration screen, a dispersion component for breaking up the rice is arranged above the vibration screen, the dispersion component comprises a main shaft arranged inside the vibration screen, in the processing technology and the preparation device for polygonatum rice, a staff member can make the polygonatum rice evenly distributed on the surface of the vibration screen by cooperating with the vibration component and the dispersion component, thereby further enhancing the screening effect of the polygonatum rice and improving the overall screening quality of the rice.

A colon endoscope camera pose estimation method based on an iterative refinement strategy relates to the technical field of medical image processing and computer vision, and comprises the steps of construction and preprocessing of an image data set, construction of an overall framework of a network model, design and implementation of a feature extraction network, and design and implementation of a camera motion classification network. Designing and realizing an iterative relative pose refining network; training and using a network model; and the like. According to the method, two camera motion modes of insertion and withdrawal are distinguished by using the camera motion classification network, the pose estimation precision is improved by combining a coarse-to-fine iteration refining strategy of the iteration relative pose refining network, the learning ability and generalization performance of the whole method are effectively improved, accurate estimation of the colon endoscope camera pose is realized, and the method is suitable for popularization and application. The method can be widely applied to the camera pose estimation task of the colon endoscope, and provides accurate camera pose support for clinical application scenes such as three-dimensional reconstruction and polyp screening of the colon endoscope.

The invention relates to the technical field of agricultural product processing, in particular to a water chestnut hull breaking and screening device and a working method. The water chestnut shell breaking and screening device comprises a feeding hopper, a conveying mechanism, a cutting mechanism, a screening mechanism and a rack. The bottom of the feeding hopper is provided with a feeding port matched with the water caltrop in shape. The conveying mechanism comprises a belt and a baffle, the baffle is buckled on the belt, and a slideway groove is formed in the middle of the baffle and located on the lower side of the feeding port; the cutting mechanism comprises a blade set located on the upper side of the sliding way groove, the blade set comprises a middle blade and side blades located on the two sides of the middle blade, the middle blade cuts the middle of the water caltrop, and the side blades cut the corner of the water caltrop. The screening mechanism comprises a grinding assembly and a screening assembly, the grinding assembly is located at the tail end of the belt and used for grinding deteriorated pulp, and the screening assembly is located on the lower side of the grinding assembly and used for screening non-deteriorated pulp; the rack ensures that the positions of all the parts are relatively fixed through stable supporting. Efficient and low-cost processing of the water chestnuts is achieved, and the stability of product quality is improved.

This invention discloses a device for reducing screen clogging in semi-dry aggregate processing. The device includes a screening box with a screen frame installed inside. A rotating assembly is installed between the screen frame and the inner wall of the screening box. A vibrating motor is installed at the lower left end of the screen frame, and a screening screen is installed at the lower end of the screen frame's inner cavity. A first cylinder is fitted onto the upper right end of the screening box, with a connecting block connected to the output end of the first cylinder. A high-pressure nozzle is connected to the bottom of the connecting block. A water inlet pipe is fitted onto the right end of the screening box near the first cylinder, and a flexible hose is fixedly connected to the inlet end of the water inlet pipe via a connector. A feed hopper is connected to the middle of the top of the screening box. This invention, through the coordinated arrangement of the first cylinder, connecting block, high-pressure nozzle, water inlet pipe, and flexible hose, allows water to flush the screening screen, removing mud, clay, and other debris located within the screen holes, thereby reducing screen clogging and improving material screening efficiency and product quality.

The utility model discloses a high-quality dried small shrimp screening device which comprises a base and a first fixing seat, the top end of the base is fixedly connected with the first fixing seat, one side of the first fixing seat is fixedly provided with a driving motor, one side of the base is provided with a base, and the top end of the base is fixedly connected with a reset spring. The top ends of the reset springs are fixedly connected with a fixing frame, and the two sides of the interior of the fixing frame are fixedly connected with first guide rails. According to the high-quality dried small shrimp screening device, parts such as the double-thread screws are arranged, double screening can be facilitated through the first screening frame and the second screening frame, the screening quality is improved, and therefore high-quality dried small shrimps can be screened out conveniently; and then the two screen frames are respectively taken out from the second guide rails in a sliding manner, so that the screen frames are more convenient and quicker to assemble and disassemble, and the problems that multiple screening is inconvenient and the screen frames are inconvenient to replace are solved.

The utility model relates to geological physics simulation experiment equipment technical field, concretely relates to a sand box physics simulation experiment homogeneous quartz sand automatic sand screening device, the quartz sand automatic sand screening device, including gradient setting's screen group, mechanical vibration excitation device, vibration control module, a plurality of different mesh number's screen is arranged gradually from small to big according to mesh number, and is set gradually in turn mutual nesting, the top of outer frame has at least two clamping grooves, the bottom of outer frame has the clamping block, and the screen of upper and lower adjacent layers is connected into an integral structure through clamping groove and clamping block cooperation mutual nesting, mechanical vibration excitation device is connected with at least one screen in screen group, and vibration control module is used for controlling mechanical vibration excitation device and carries out vibration according to preset frequency and amplitude. The utility model discloses sand screening device has the advantages such as high screening efficiency, good quality, better satisfy the sand box physics simulation quartz sand preparation demand, reduce manpower, material resources requirement, make the experimental efficiency improve greatly.