41results about How to "Evenly screened" patented technology

The utility model relates to the technical field of grain processing, in particular to an impurity removing and cleaning device which comprises a box body and a feeding box, a groove communicated with the outside is formed in the box body, a sieve plate is connected in the groove in a sliding mode, a vibration motor is installed on one side of the box body, and the side, away from the sieve plate, of the box body is communicated with a discharging port. The bottom of the box body is fixedly connected with at least four groups of second springs, and one end, far away from the box body, of each second spring is sleeved on the corresponding supporting piece. The vibrating motor starts to work to vibrate the box body through the arrangement of the box body, the vibrating motor, the sieve plate, the second springs and the limiting assemblies, and grains vibrate on the sieve plate; and a second spring is limited by a limiting assembly, so that screening of the box body can be more stable, and the conditions of grain accumulation and incomplete screening are reduced.

The invention belongs to the technical field of automatic discharging devices, in particular to an automatic pig feed discharging device capable of automatically distributing, and provides the following scheme that the automatic pig feed discharging device comprises a base, two symmetrically-arranged supports are fixedly mounted at the top of the base, and the same top plate is fixedly mounted on the sides, close to each other, of the two supports; a stabilizing frame is fixedly mounted at the top of the top plate, a feeding pipe is fixedly mounted on the left side of the stabilizing frame, and a mounting plate is fixedly mounted on the left side of the feeding pipe; a mounting plate is arranged on the left side of the support, a discharging mechanism is arranged on the front side of the mounting plate, a screening mechanism, two sets of positioning mechanisms and an unlocking mechanism are arranged on the support located on the right side, and automatic and quantitative discharging can be achieved through a first electric push rod and a second electric push rod; and the multi-stage screen is mounted at the top of the base, so that materials of different specifications can be screened out, and the screening effect on the materials is enhanced.

The utility model relates to iron tailings sand particle screening technical field discloses a dustproof iron tailings sand particle screening device, including base and fixed box, the top fixedly connected with fixed box of base, the inside of fixed box is provided with collecting box, the front end fixedly connected with handle of collecting box, the both sides fixedly connected with side plate of base top, the top between side plate fixedly connected with fixed frame, the both sides fixedly connected with fixed block of fixed frame front end, the rear end swing joint has dust cover of fixed frame top, this dustproof iron tailings sand particle screening device is set up with fixed frame, fixed block, dust cover, feed inlet, positioning buckle, and dust cover is turned to lower, and positioning buckle is buckled outside fixed block, and the feed inlet of dust cover can put into screen frame gravel, so that dust is not easy to fly everywhere when screening, solves the problem that dust is easy to fly everywhere in the screening process.

An efficient iron removal machine for lithium battery materials comprises a hopper, a feeding cylinder, a blocking strip, a distributor, a vibration motor, material uniformizing nails, a first magnetic roller, a transmission gear, a second magnetic roller, a material distribution plate, a material scattering hopper, an iron hopper and a non-iron hopper, the distributor is in a ridge shape, the material uniformizing nails are arranged on the two slopes of the ridge, and the vibration motor is arranged on the end face of the distributor; a first magnetic roller and a second magnetic roller are arranged below the ridge-shaped distributor, a plurality of magnetic poles are arranged in the rollers, and distributing plates are arranged below the rollers respectively. By means of the technology, 10-15000-mesh magnetic substances such as iron and titanium in the powder in the machining process can be continuously and effectively separated and removed, the processes such as magnetizing, demagnetizing and stopping for material receiving in the midway of an existing magnetic separator are omitted, and the production efficiency is improved.

The utility model relates to the technical field of feed additives, and provides a grading screening device which comprises a main plate, a screening mechanism is arranged on the upper portion of the main plate, an electric push rod is arranged, and the output end of the electric push rod pushes and pulls a second connecting block, so that the second connecting block drives a guide rod to obliquely move upwards and downwards under the limiting effect of a guide groove; according to the feed additive screening device, the screening frame is arranged, so that feed additives in the screening frame can swing up and down back and forth, then the feed additives in the screening frame can be evenly screened, and the situation that the feed additives are stacked during screening due to the fact that one side is high or low is avoided; and feed additives with different particle sizes can be screened in a classified mode conveniently, and blockage of the feed additives can be avoided in an up-and-down swinging screening mode. By means of the technical scheme, the problems that in the prior art, accumulation, sputtering and blocking are likely to happen when feed additives are screened in a classified mode are solved.

The utility model discloses a millet harvesting thresher, including mobile car, be provided with the thresher subassembly on the mobile car, the thresher subassembly includes thresher cylinder, second motor, driving wheel, driven wheel and transmission belt, the thresher cylinder sets up on the mobile car, second motor fixed mounting is on the mobile car, the driving wheel is connected in the output of second motor, the driven wheel rotatoryly connects on the thresher cylinder, transmission belt transmission is connected on the driving wheel and driven wheel, one end of mobile car sets up in the filter component, the filter component includes fixed frame, mobile frame and filter plate, the fixed frame installs on the mobile car, mobile frame slidingly connects on the fixed frame, the filter plate installs on the mobile frame, to solve the operation of the thresher process in the background art not enough convenient technical problem.

The utility model relates to traditional chinese medicinal material processing coarse screen technical field discloses a kind of coarse screen equipment used in traditional chinese medicinal material processing process, including bottom frame and base, the top end of the bottom frame is fixedly connected with connecting frame, the top end of the connecting frame is clamped with dust frame, the top end of the dust frame is fixedly connected with feed inlet, the top end of the feed inlet is clamped with top cover. The coarse screen equipment used in traditional chinese medicinal material processing process is provided with connecting frame and other parts, the top end of dust frame is fixedly connected with feed inlet, the top end of feed inlet is clamped with top cover, the top end of top cover is fixedly connected with third handle, top cover is detachably connected in the top of feed inlet, third handle opens top cover, traditional chinese medicinal material can be placed in sieve frame through feed inlet, then top cover is covered, so that dust is not easy to enter inside during screening, solve the problem that there is no shielding structure in top during screening, dust, impurities in air easily enter inside.

The application relates to the technical field of medical image processing, in particular to a small kidney stone automatic segmentation and three-dimensional positioning method based on a CT image. The method determines local saliency according to the gray level difference between the inner layer analysis area and the outer layer background area of pixels and the gray level fluctuation degree of the outer layer, filters out candidate points, obtains the structure regularity of the candidate points according to the radial monotonicity and direction consistency of the gray level distribution in the candidate point window, divides a plurality of concentric annular zones with the candidate points as the center, calculates the annular zone gray levels of the annular zones, determines the scale matching degree according to the annular zone gray level variation trend and the relative concentration degree of the annular zone gray level difference, determines the comprehensive confidence degree according to the saliency, the regularity and the matching degree, adjusts the contrast parameter of the level set edge indication function according to the comprehensive confidence degree, drives the level set evolution by using the adjusted function, obtains the segmentation contour and the three-dimensional space positioning of the target, and thus the weak edge missing detection and the false positive rate of the target are reduced.

The application belongs to the technical field of quartz sand processing, in particular to a fine crushing and multi-stage purification process for preparing ultra-high-purity quartz sand, which comprises a machine body, a fixed frame is fixedly connected to the upper surface of the machine body, a feeding port is formed in the fixed frame, a first motor is arranged below the machine body, a crushing roller is drivingly connected to the output end of the first motor, auxiliary plates are fixedly connected to the inner wall of the feeding port on both sides, tooth gears are fixedly connected to one side of the auxiliary plates and staggered with the tooth gears on the circumferential surface of the crushing roller, the auxiliary plates are used for assisting the crushing roller to crush quartz sand, a purification cavity is fixedly connected to the middle of the machine body, and a sieve plate is elastically connected in the purification cavity, through the hooking assembly and the blockage cleaning assembly, the problem that the existing screening is blocked and the screening efficiency is reduced is solved, and the problem that the falling is slow during the screening process is solved.

The utility model discloses an automatic code spraying and gasket adding device for magnets, and particularly relates to the technical field of magnet processing equipment, which comprises a bearing plate, a support frame is fixedly arranged above the bearing plate, a screening pool is arranged above the support frame, a motor is arranged at the bottom of the screening pool, the output end of the motor is connected with a rotating shaft, and the rotating shaft is connected with a motor. The end, away from the motor, of the rotating shaft penetrates through the bottom of the screening pool, and the rotating shaft extends into the screening pool. The motor is arranged to drive the rotating shaft to stir the screening pool, the magnets can be rapidly and evenly screened, stable quality is ensured, and the stability is enhanced through the detachable positioning frame on one side of the motor; the conveying frame makes close contact with the discharging extension plate, the stability of the conveying frame is guaranteed through the positioning rods, the magnets smoothly fall into and are conveyed to the conveying belt, efficient conveying is achieved, and manual errors are reduced. The ink-jet printer can accurately move up and down through the rotating motor and other structures, the ink-jet position is accurately controlled, clearness and accuracy are ensured, and the identification requirement is met.

The invention relates to the technical field of charcoal raw material screening, in particular to charcoal production powdery raw material screening equipment which comprises an outer box cylinder and a fine material inner cylinder, the fine material inner cylinder is coaxially located on the inner ring side of the outer box cylinder, and a material carrying column is rotationally inserted between the outer box cylinder and the fine material inner cylinder; and a plurality of material carrying grooves communicating with the inner ring face of the material carrying column are formed in the outer ring face of the material carrying column, filtering structures are slidably inserted into the material carrying grooves, and the faces, close to the axis of the outer box cylinder, of the filtering structures are elastically connected with the inner walls of the material carrying grooves. After powder raw materials on the screening structures are gradually reduced, the telescopic ends of the inner bent rods are driven to be separated from the clamping groove plates, and at the moment, the material carrying column can rotate to drive the screening structure in the next material carrying groove to rotate to the position above an opening of the fine material inner barrel for screening; and after the powder raw materials in the raw materials screened by the screening structure are reduced to a certain degree, new to-be-screened raw materials are replaced.

The utility model discloses a conveying device for coal mining, and belongs to the field of coal mining, in particular to a conveying device for coal mining, which comprises support frames, side plates, a first conveying belt and a second conveying belt, the side plates are symmetrically and fixedly mounted on the side surfaces of the support frames, the first conveying belt is fixedly mounted between the support frames, and the second conveying belt is fixedly mounted between the support frames. A second conveying belt is fixedly installed between the supporting frames, and the second conveying belt is located below the first conveying belt. The conveying device and the screening device are arranged, so that material conveying can be automatically and stably completed, coal can be automatically screened in the conveying process, and the conveying efficiency is improved; according to the coal screening device, materials which do not meet specifications and are small in size in coal are screened out, then the materials are conveyed through a single conveying belt, on the premise that stable conveying of the materials is guaranteed, screening of the materials is rapidly completed, and the device is more efficient and stable in use.

The utility model discloses a seed screening device for agricultural technology popularization, and relates to the technical field of seed screening. The device comprises a support frame; a baffle; a screening mesh; the screening net is used for separating seeds with different sizes; the screening device further comprises a protection plate, the outer surface of the protection plate is fixedly connected with the outer surface of the baffle, a feeding groove is fixedly connected to the top of the outer surface of the baffle, a fixing block is fixedly connected to the lower surface of the feeding groove, a rotating plate is rotationally connected to the inner surface of the fixing block, and a servo motor is arranged outside the rotating plate. The output end of the servo motor is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is rotationally connected with a transmission belt, the outer surface of the rotating shaft is fixedly connected with a pushing column, and the pushing column rotates, so that seeds blocking the inlet are scattered and pushed and spread to the screening net, and large-particle seeds which are stacked at the bottoms of the seeds and block screening holes are pushed; the purpose that large-particle seeds do not block the screening net to screen the seeds is achieved.

The utility model relates to basalt fiber processing technical field discloses a kind of basalt fiber automatic cutting feeding equipment, including base, the front side of the base is fixedly connected with extension plate, the top of the base is provided with cutting mechanism, the rear side of the base is provided with sorting mechanism, the sorting mechanism is used to sort after cutting basalt fiber, the cutting mechanism includes U-shaped frame, the right side rear end of the U-shaped frame is fixedly connected with motor one, the output end of the motor one is through U-shaped frame and is fixedly connected with two-way threaded rod one. In the utility model, the position of the guide roller is adjusted by the telescopic link one, and the basalt fibers of different specifications are adapted to enter the cutting area. The two-way threaded rod is rotated by the motor one, and the two threaded rods are synchronously rotated by the transmission assembly. The motor two makes the cutting blade rotate at high speed, completes the cutting, realizes the guidance fiber and stable efficient cutting, and ensures the cutting accuracy and stability.

The device disclosed in the present invention for smoothly screening equal-length belts by gravity comprises a platform, a cylinder, a linear rail slider assembly, a small pulley, a large pulley and a weight. The lower part of the large centering shaft is mounted in the large connecting plate through an axial hole. A pressure gauge plate is fixed on the side of the large connecting plate. A dial indicator or a position sensor is fixed on the top of the platform. The large connecting plate is fixedly connected to the slider. The driving shaft fixed at the front end of the piston rod comprises a front limit section, a middle section and a rear limit section. A driving block is fixed on the large connecting plate. The driving handle at the lower part of the driving block is sleeved on the outer side of the middle section. One end of the chain is fixed on the chain fixing block, and the other end droops naturally and fixes the weight. The device can convert the tension force of the belt during use into the gravity of the weight, so as to prevent impact, smoothly measure and screen equal-length belts. The device is easy to operate and the screening results are reliable. By changing the position of the small connecting plate and the size of the weight, the measurement and screening of belts of different specifications can be achieved.

The invention relates to the technical field of safety early warning, in particular to an offshore equipment safety early warning system based on data analysis, which comprises a data acquisition module, a first determination module, a second determination module, a judgment module, an adjustment module and an early warning module. By collecting and analyzing key data of the wind power platform in real time, potential risks of the wind power platform under the conditions of sea condition change, uneven stress or structural damage and the like can be accurately recognized, the system effectively deals with fluctuation of an external environment by dynamically adjusting the height and the interval of the platform, structural abnormity is reduced, and the reliability of the system is improved. According to the method, finer safety early warning can be realized, an abnormal platform is identified and positioned in advance, the safety, stability and operation and maintenance efficiency of the wind power platform are greatly improved, and finally, a powerful guarantee is provided for sustainable development of the offshore wind power industry; the problems of insufficient early warning accuracy and slow response speed caused by complex change of the marine environment and limited sensor performance are effectively solved.

The invention relates to the field of recycling devices, in particular to an environment-friendly rubber tire recycling device which comprises a machine body and a feeding hopper fixedly connected to the upper side of the machine body. A feed opening is formed below the machine body; a crushing assembly used for crushing tires is arranged on the inner side of the feeding hopper. The driving assembly is arranged on the upper side of the machine body; the driving assembly is connected with a screen drum for screening rubber blocks, and a plurality of screen holes which are annularly distributed at equal intervals are formed in the screen drum; the feeding hopper is located on the inner side of the screen drum; a plurality of baffle plates are fixedly connected to the inner side of the screen drum; each blocking plate is fixedly connected with a plurality of arc-shaped rods, and the blocking plates and the arc-shaped rods are used for blocking rubber blocks. According to the rubber crushing device, through the arrangement of the screen drum, the baffle plate and the arc-shaped rod, large rubber blocks which do not reach the grain size are repeatedly lifted and backfilled into the feeding hopper and enter the crushing roller again to be crushed for the second time or multiple times, and it is ensured that the rubber blocks are fully crushed into fine and uniform particles.

The utility model discloses a hoister with deashing function relates to hoister technical field, including hoister body, placing fence and base, hoister body bottom is fixedly connected with base top, placing fence is installed in hoister body front side, the right side of placing fence is fixedly connected with vibration filtration subassembly, and the vibration filtration subassembly is connected with the vibration filtration subassembly. And a centralized collection assembly is arranged at the bottom of the placement fence. The vibration filtering assembly is arranged to be matched with the centralized collecting assembly to stably clean and collect materials in the containing fence, and the problems that when an existing elevator moves and lifts the materials, dust particles on the materials are inconvenient to clean, and the materials cannot be cleaned easily are solved. The problems that dust on materials needs to be cleaned after the materials are lifted and moved by the elevator, inconvenience is caused in the using process, and the using effect of the elevator is reduced are solved, and the effect of centralized dust cleaning is achieved.

The present invention relates to the field of water conservancy engineering technology, specifically to a water conservancy sand and gravel screening device and a screening method thereof, including a screening box, wherein a screening assembly for screening sand and gravel raw materials is arranged in the screening box, and a plurality of discharge ports are opened on one side of the screening box, and the positions of the plurality of discharge ports match the positions of the discharge ports of the screening assembly. This device solves the blockage problem that may occur during the sand and gravel screening process through the design of the dredging assembly. When the first transmission belt rotates, the first connecting shaft connected to the first transmission belt will slide along the first limiting groove and drive the rotating drum to move. During the movement of the rotating drum, the dredging rod will continuously move the sand and gravel on the screening plate, and remove the sand and gravel stuck on the sieve hole, thereby avoiding blockage during the screening process. At the same time, when the rotating drum on the discharge plate rotates, it will also drive the discharge brush to rotate, clean the discharge plate, and sweep the remaining sand and gravel off and discharge it through the discharge port.

The invention belongs to the technical field of molecular marker technology development and application, and discloses an SSR molecular marker developed based on a mactra veneriformis reference transcriptome sequence, and the SSR molecular marker comprises 16 nucleotide sequences corresponding to microsatellite markers as shown in SEQ ID NO.1-SEQ ID NO.16 in sequence. At present, no report about development of mactra veneriformis microsatellites from genomes and transcriptomes exists, 16 stable microsatellite molecular markers with clear strips and high polymorphism are developed from mactra veneriformis transcriptome data on the basis of a high-throughput transcriptome sequencing technology for the first time, and the microsatellite molecular markers can be used for identifying the mactra veneriformis microsatellites. The method has good practical production and application values in the fields of mactra veneriformis population genetics analysis, genetic relationship identification, high-density genetic map construction and molecular marker-assisted breeding.

The utility model relates to the technical field of reclaimed rubber production, specifically relates to a multistage screening device of rubber production, and the technical problem to be solved is to overcome the defects of screening effect in the prior art, mainly realized through the following technical scheme: a multistage screening device of rubber production, screening frame body, screen cloth structure and flatten structure are connected with the feeding structure and are equipped with the discharge structure on the screening frame body, the screen cloth structure is arranged in the screening frame body, the screen cloth structure includes first screen cloth piece, second screen cloth piece and third screen cloth piece, the flatten structure is located on the first screen cloth piece, the flatten structure includes two conveying chains, flatten drive part, flatten roller and flatten rod, the flatten roller reciprocatingly shifts and is arranged on the first screen cloth plate, the flatten roller side is further equipped with the material flat plate, the rubber is quantitatively fed and is screened through the feeding structure, and three -level screening structure is set up to carry out fine screening, the screening process sets up the material baffle and reduces the environmental influence, and the whole use is convenient and is convenient for discharge conveying.

The invention discloses a rotary kiln discharge screening device, which is used for coarse and fine screening of discharge materials of a rotary kiln, and comprises a conical screen structure rotating around the horizontal center line of a movable cylinder, and a fine material discharge port and a coarse material discharge port which are arranged at the lower part of a static cylinder; the conical screen structure is arranged on the outer side of the annular plate on the outer side of the movable cylinder, when the rotary kiln runs, the conical screen rotates around the horizontal center line of the movable cylinder, and dynamic screening of discharging materials of the rotary kiln is achieved; the conical screen spiral blades are intermittently welded to the inner side of the conical screen, so that fine materials discharged by the rotary kiln are evenly screened out at the fan ring opening of the conical screen, and coarse materials discharged by the rotary kiln are smoothly and stably screened out at an outlet in the right portion of the conical screen; through the special structural design of the fan ring base plate of the conical screen, the change of the shape of the cross section of the screen is kept continuous, the thermal stress concentration area is reduced, meanwhile, thermal expansion displacement is fully considered in the design of the screen, and long-time stable screening of discharged materials of the rotary kiln at the high temperature of 1050 DEG C is achieved.

The utility model discloses a pepper extract screening device which comprises a screening machine body, a controller is connected to the side wall of the screening machine body, a screening net is arranged in an inner cavity of the screening machine body, and a net hole adjusting structure is connected to the position, below the screening net, of the side wall of the screening machine body. According to the pepper extract screening device, the mesh adjusting structure is arranged in the pepper extract screening device, so that a driving motor in the mesh adjusting structure passes through a transmission structure, the size of meshes of a screening net is adjusted, and the meshes of the screening net are cleaned; and the size of meshes of the screening net can be adjusted and the meshes of the screening net can be cleaned according to use requirements, so that the device is more convenient to use, and the problems that the size of the meshes of the screening net cannot be adjusted and the meshes of the screening net cannot be cleaned are solved.

The application relates to a hip joint ultrasound standard surface screening and measuring method and device based on key point detection and time sequence consistency, and the method comprises the following steps: acquiring a hip joint ultrasound image sequence; detecting a plurality of anatomical key points in the ultrasound image, outputting a multi-channel response heat map, and obtaining anatomical key point coordinates; constructing a comprehensive consistency scoring function based on the anatomical key points and the time sequence change of adjacent frames of the hip joint ultrasound image, and calculating a consistency score; when the consistency score exceeds a preset threshold, the corresponding frame is determined as a candidate standard section frame; the development state of the candidate standard section frame is reviewed and distinguished to obtain a development state classification result; the alpha angle and the beta angle are calculated, the angle line and the key points are superimposed and displayed on an original drawing, a visual result is generated, and a structured report containing the visual result, the anatomical key point coordinates, the angle parameters and the development state classification result is output. Compared with the prior art, the application significantly improves the automation degree and the result interpretability while maintaining high-precision measurement.

The utility model discloses a corn thresher with a screening function, and relates to the technical field of corn threshers, the corn thresher comprises a shell, the inner wall of the shell is fixedly connected with a thresher, the heat preservation of the shell is provided with a screening mechanism, the screening mechanism comprises a motor, the outer wall of the motor is fixedly connected with the inner wall of the shell, and the outer wall of the motor is fixedly connected with the inner wall of the shell. The inner wall of the end, close to the motor, of the shell is rotationally connected with a plurality of transmission shafts, and the outer wall of the transmission shaft located on the outer side is fixedly connected with the output end of the bottom of the motor. And a connecting rod rotates to drive a connecting rod II to do eccentric circular motion around the transmission shaft, so that the threshed corn kernels can be screened while the corn is threshed, the corn kernels are reasonably utilized, and the utilization rate of resources is increased.

The invention relates to the technical field of nanometer materials, in particular to a nanometer material production on-line particle size regulation and automatic detection device which comprises a shell I, a shell II and a shell III, a screening barrel I, a screening barrel II and a screening barrel III are arranged in the shells respectively, screening holes with gradually increased hole diameters are evenly distributed in the bottoms of the screening barrels, and the screening barrels are arranged in the shell I, the shell II and the shell III. A spiral conveying mechanism and an automatic cleaning mechanism are arranged in the machine body. The conveying mechanism is uniformly driven by the synchronous driving mechanism, and continuous conveying, stirring and multi-stage screening of the nanometer materials are achieved. The device has the beneficial effects that through combination of mechanical multi-stage screening and automatic cleaning, the problems that nano materials are prone to agglomeration, screening is prone to blockage and particle size detection is inaccurate are effectively solved, online, continuous and automatic regulation and control and detection of the particle size of the nano materials are achieved, and the production efficiency and the screening precision are improved.

This utility model relates to the technical field of cement testing equipment, specifically disclosing a cement sampling sieving device, including a support platform with an inclined groove on the support platform. A sieving component slides within the groove, and a tension component is fixedly connected to one end of the groove. The tension component is fixedly connected to the sieving component. The sieving component is used for automatically sieving cement samples. The tension component is used to measure the cement sample residue in the sieving component through elastic deformation, and stops sampling after reaching a preset sampling amount. This utility model measures the total mass of the cement sample and calculates the sampling mass by the elastic deformation of a spring, thereby automatically terminating sampling according to the preset sampling amount. It uses mechanical shaking sieving to replace manual sieving, thus improving the efficiency and accuracy of sampling sieving.

The utility model relates to soil impurity removing equipment technical field especially, it relates to a soil impurity removing device convenient for quality detection. A soil impurity removing device convenient for quality detection, including counterweight base, rotary combination cup body and setting between the counterweight base and the vibration subassembly of rotary combination cup body, the rotary combination cup body includes top cap, first impurity removing layer, second impurity removing layer and bottom layer storage box, top cap, first impurity removing layer, second impurity removing layer and bottom layer storage box between the order of screw connection, the first impurity removing layer is detachable and is provided with the rotary filter screen. The utility model discloses through being provided with the rotary combination cup body with multiple screening function, realizes the screening function to soil sample, to facilitate the content detection of different particle size impurities subsequently, and the screw connection between the layers of rotary combination cup body, is closely connected while being convenient for dismounting, is favorable to the rapid impurity removing of soil sample, and the cup body whole is cylindrical and is convenient for user to take directly, is convenient for carrying.

The present invention discloses a sorting device for producing quartz sand, comprising a support, a sorting mechanism and a crushing trough, wherein a classification and discharging mechanism is arranged inside the support, a cleaning system and a crushing device are arranged on the top of the crushing trough, a linkage material guiding mechanism and a screening type crushing mechanism are arranged inside the crushing device, and a fixing plate is installed on one side of one end of the crushing trough; the present invention facilitates the use of a preliminary crushing structure and a fine crushing structure to be carried out simultaneously through the structural coordination of the crushing device and the screening type crushing mechanism, thereby realizing uniform crushing of the quartz sand, and utilizing the centrifugal rotation of the filter screen cylinder to promote the fine crushing structure to be carried out on the inner side of the filter screen cylinder, so that the centrifugal rotation of the filter screen cylinder can be utilized to guide some quartz sand particles that are too large to be screened upward under the centrifugal action and fall into the crushing mechanism for repeated crushing, and this is repeated, thereby ensuring that all quartz sand is uniformly filtered out under the action of the filter screen cylinder.

The utility model discloses a buckwheat processing screening device which comprises a machine frame, a screening frame is installed above the machine frame through a telescopic rod, a spring is installed on the outer side of the telescopic rod in a sleeved mode, a vibration motor is arranged on the side wall of the screening frame, a pair of screen cloth is arranged in the screening frame in an inclined mode, and a pair of discharging ports for the screen cloth to use are formed in the side wall of the screening frame. The utility model relates to the technical field of buckwheat processing, and the device realizes double screening of buckwheat grains through a pair of screen meshes which are obliquely arranged and have different pore diameters, ensures that qualified buckwheat grains are screened out, effectively separates out large-volume impurities such as straws and small-volume impurities such as sandy soil grains, and improves the quality of buckwheat grains. The elastic pieces on the pair of main shafts can make contact with the lower wall of the screen in the rotating process, the elastic flapping effect is achieved, buckwheat grains and impurities embedded in meshes of the screen are popped out in time, the screen is prevented from being blocked, and the screening process is kept unobstructed.