559results about How to "Improve screening effect" patented technology

The invention relates to a preparation method for improving a sodium alginate pervaporation membrane by using a two-dimensional leaf-shaped zeolite imidazole framework (ZIF-L) material, and particularly relates to a preparation method for improving a sodium alginate pervaporation membrane by using a two-dimensional leaf-shaped zeolite imidazole framework (ZIF-L) material. The pervaporation mixed matrix membrane comprises a base membrane and a separation layer membrane, the base membrane adopts a polyacrylonitrile (PAN) membrane, and the separation layer is composed of ZIF-L and sodium alginate. According to the invention, the distribution of ZIF-L in the membrane is improved, directional arrangement is formed, and the separation effect and selectivity of the composite membrane are improved. A novel process is adopted, the defect problem of the ZIF-L-SA membrane is eliminated, the continuous ultrathin ZIF-L membrane is prepared through a secondary seed growth method, and the performance of the two-dimensional ZIF-L membrane is improved. The ZIF-L synthesis conditions are mild, the method is simple, hydrophilic modification of the membrane surface is achieved, an internal water molecule transmission channel is constructed, and the separation factor and stability of the membrane are improved. The prepared high-flux pervaporation membrane has a wide application prospect.

The invention discloses an industrial park net load prediction method and system based on a multilayer perceptron, and the method comprises the following steps: dividing historical industrial park operation data according to an audio frequency collection region, and obtaining region historical operation data corresponding to the audio frequency collection region; performing clustering analysis on the historical operation data of each region based on the audio frequency fluctuation, and obtaining audio frequency-aging correlation according to a clustering result; training by using historical industrial park operation data, historical distributed energy operation data and audio frequency-aging correlation to obtain an industrial park net load prediction model; and obtaining industrial park net load prediction data according to the current industrial park operation data, the current distributed energy operation data, the industrial park load net prediction model and the audio frequency-aging correlation. The method has the beneficial effects that an aging model does not need to be constructed for each industrial device, the overall model structure is simplified, and meanwhile, the prediction efficiency and prediction accuracy of the load of the industrial park are improved.

The invention provides a precoated sand coating production screening machine, belongs to the technical field of precoated sand production, and solves the technical problems that an existing screening machine is tedious in screen replacement, high in energy consumption, poor in screening effect and the like. Comprising a rack, an up-down vibration mechanism, a screen mechanism and a screen box mechanism, the screen box mechanism is hinged to the lower portion of the inner side of the rack, a transmission mechanism, a first driving motor and a high-pressure fan are arranged on the upper end face of the rack, an eccentric vibration mechanism is arranged on the side portion of the rack, and a plurality of reset springs are arranged between the left side and the right side of the screen box mechanism and the rack; a turning plate mechanism is arranged on the rear side of the screen box mechanism, a plurality of blower guns are arranged on the inner top of the screen box mechanism, a scattering roller is arranged on the rear side of the interior of the screen box mechanism, and a plurality of scraper mechanisms are arranged on the screen mechanism. The vibrating screen can vibrate up and down, is low in energy consumption, good in vibration effect and capable of vibrating left and right, enables raw materials to be dispersed, is high in screening efficiency, long in screening path, stable in screening quality, convenient to install and capable of being automatically cleaned, and ensures that the working environment is clean.

The invention relates to the technical field of plastic recycling, and discloses a fragment screening mechanism for plastic particle production, the fragment screening mechanism for plastic particle production comprises a rack and a screening hopper, a coarse screening plate is fixedly installed on the inner wall of the screening hopper, and according to the fragment screening mechanism for plastic particle production, a motor is started to drive a rotating shaft to rotate; meanwhile, plastic particles in the screening hopper can be scattered through cooperation of a wheel disc, a cam groove, a ball head rod, a push plate, a sliding rod, a spiral groove and a stirring shaft, meanwhile, the plastic particles in the hopper can be turned up and down in a reciprocating mode through cooperation of a connecting rod, a sliding table and the stirring shaft, the scattering effect on the plastic particles is further improved, and adhesion of the plastic particles is avoided; accordingly, the plastic particles can be prevented from blocking the coarse screening plate, the screening effect and efficiency of the plastic particles are improved, meanwhile, the discharging pipe can be dredged through the push rod, the inclined groove, the sliding plate and the ejector rod, the plastic particles are prevented from being blocked in the discharging pipe, and the discharging efficiency of the plastic particles is improved.

The invention discloses a magnesium oxide production screening device capable of being pretreated and a screening method of the magnesium oxide production screening device, and relates to the technical field of magnesium oxide processing.The magnesium oxide production screening device comprises an airflow screening mechanism and a negative pressure fan installed on one side of the interior of the airflow screening mechanism, and a crushing mechanism is arranged on one side of the top of the airflow screening mechanism; an opening and closing support is arranged at the top of the crushing mechanism, the airflow screening mechanism comprises a screening support, a rotating bearing is rotationally connected to one side of the interior of the screening support, a discharging opening is fixedly formed in the bottom of the screening support, and a conveying pipe is fixedly installed on the side, close to the rotating bearing, of the screening support; the negative pressure fan is matched with the spiral conveying blade to generate vortex, the first screening barrel and the second screening barrel are used for screening magnesium oxide, and the mesh holes of the first screening barrel and the second screening barrel are staggered, so that the sizes of the mesh holes of the first screening barrel and the second screening barrel are changed; impurities with different particle sizes and uncrushed magnesium oxide can be screened.

The utility model discloses an anti-blocking modularized drum bag breaking mechanism. The bag breaking mechanism comprises a module screen, a blocking and separating part, a feeding rolling ring, a discharging rolling ring, a driving device, a hooking and cutting knife assembly, a spiral primary cutter and a base. The module screen adopts a split type module screen and a split type screen body module, screen units are fixed in the radial direction and the axial direction, and the screen body module is a high-strength three-dimensional framework; the upper end of a three-dimensional screen pipe is connected with a screening hole of a screen unit, and the lower end of the three-dimensional screen pipe is connected with a separation hole of the lining plate; the feeding rolling ring and the discharging rolling ring are connected to the outermost side end ring of the module screen, and the lower ends of the feeding rolling ring and the discharging rolling ring are driven by the driving device in a rolling friction mode. A plurality of hook cutting knife assemblies are installed on the screen body module in a staggered mode, and a plurality of spiral primary cutting knife arrays are installed on the feeding rolling ring. The utility model has the effects of quick and low-cost maintenance, high-efficiency sorting without blockage, and comprehensive utilization of the original equipment.

The invention relates to the technical field of electricity meter scrap treatment, and discloses an electricity meter scrap crushing and sorting treatment device which comprises a machine body, a motor is fixedly connected to one side of the machine body, two crushing rollers are rotatably connected to the top in the machine body, and a first circular gear is fixedly connected to the side, away from the motor, of each crushing roller; the output end of the motor is connected with one of the crushing rollers, the two first circular gears are meshed, a rolling assembly, a separating assembly and a screening assembly are sequentially arranged in the machine body from top to bottom, a transmission assembly and a reciprocating assembly are arranged on the outer wall of the machine body, the rolling assembly comprises a rotating shaft, a rolling box and a fixing plate, and the rotating shaft is connected with the rolling box. And the rotating shaft is rotationally connected to the inner wall of the machine body. And through cooperation of the rotating shaft, the first bevel gear and the second bevel gear, the rolling rollers generate periodic left-right rolling action in the rolling box, the crushed materials are subjected to secondary rolling, and the particle size of the materials is refined.

The invention relates to the technical field of shakeout machine equipment, and discloses a vibration exciter type inertial vibration shakeout machine which comprises a base, a vibration structure and a screening structure. The base is rectangular, the vibration structure is fixedly arranged on the upper wall of the base, and the screening structure is fixedly arranged on the vibration structure; the device has an efficient screening effect; through the synergistic effect of the first vibration assembly and the second vibration assembly, the vibration effect of the first sieve plate can be improved, according to the whole scheme, assembly structures can be selected according to different requirements, the possibility of flexibility and customization is provided, and the requirements of different users and different application scenes are met; through the arrangement of the stirring structure, especially the design of the stirring rod, the stirring rod can reciprocate below the sieve plate and is obliquely attached to the sieve plate, so that the stirring rod can be inserted into the sieve holes under the action of elastic force, the blockage of the sieve holes is effectively prevented, and the continuity and the stability of the sieving process are ensured.

The invention relates to the technical field of agricultural machinery, in particular to a multifunctional fruit huller. Comprising a case, and an eccentric rolling and screening device, a spiral screening and conveying device, a drying device and a collecting device which are mounted in the case from top to bottom; the eccentric rolling and screening device is provided with an eccentric rolling roller and a screening barrel and is used for rolling and screening fruits, then the fruits are conveyed to the drying device through the spiral screening and conveying device, and the drying device is used for drying the seeds and conveying the seeds into the collecting device; the motor and the transmission device are installed in the machine box, and the motor drives the eccentric rolling and screening device and the spiral screening and conveying device to operate through the transmission device. The device can be conveniently carried to mountainous areas where fruit trees live, fruits can be hulled on site after being picked, transportation is convenient, and the hulled seeds can be dried.

The invention provides a screening device for rice processing, and relates to the technical field of rice processing equipment. The upper end of the side wall of one end of the screening machine box is of an outwards-protruding structure, the top of the outwards-protruding part is provided with an unhulled rice feeding port with the wide upper portion and the narrow lower portion, the unhulled rice feeding port communicates with an inner cavity of the screening machine box, and a horizontal stock bin supporting plate is fixedly arranged in the inner cavity, below the unhulled rice feeding port, of the screening machine box. A separating tongue plate is arranged at the edge of the inner end of the stock bin supporting plate, and a hinged shaft is arranged at the end, close to the stock bin supporting plate, of the separating tongue plate and rotationally connected into the screening machine box; and a feeding shaft is transversely and rotationally mounted at the position, deviating to the separating tongue plate, above the stock bin supporting plate. The rice is easily added into the screening machine box through the rice adding opening and falls on the stock bin supporting plate. After the motor is started, the feeding shaft rotates, and the feeding chute on the feeding wheel picks up the rice from the stock bin supporting plate and stably conveys the rice forwards along the inclined surface. By means of the design, uniform conveying of the rice is guaranteed, and the screening efficiency is greatly improved.

The aggregate screening device for concrete production comprises a material conveying frame, a material screening box and a butt joint clamping seat, the material conveying frame is fixedly installed on the outer surface of one end of the material screening box, the butt joint clamping seat is fixedly installed on the outer surface of the other end of the material screening box, and a screen is movably installed on the inner side of the material screening box; the screening box and the screen are connected and fixed through a vibrating frame, a first rotating rod matched with the screen for use is movably installed on the lower portion of one end of the vibrating frame, a second rotating rod matched with the screen for use is movably installed on the lower portion of the other end of the vibrating frame, and the first rotating rod and the second rotating rod are symmetrically arranged. The vibration frame and the screening box are connected and fixed through a buffer. A material receiving box is mounted on the inner side of the butt joint clamping seat in a splicing manner; when the aggregate screening device for concrete production is used, the retention time during aggregate screening can be flexibly controlled, meanwhile, the size of the screen can be flexibly adjusted, and the aggregate screening effect is improved.

The invention discloses a PET bottle flake classifying and screening system, and relates to the technical field of PET bottle flake recycling, the PET bottle flake classifying and screening system comprises a first conveying belt and a mounting roller, a material distributing roller is rotatably arranged in a connecting cylinder, an adjusting mechanism is arranged in an outer box, and first electromagnetic plates are symmetrically arranged on the inner side of the first conveying belt; an electromagnetic roller is arranged in the driving roller at one end of the first conveying belt, an eddy current magnetic roller is arranged in the driving roller at one end of the second conveying belt, a mounting roller is fixedly arranged in the fixing cylinder, second electromagnetic plates are fixedly arranged in a plurality of mounting grooves in the mounting roller, and a sorting mechanism is arranged on the mounting roller. According to the PET bottle chip sorting device, the first electromagnetic plate, the electromagnetic roller and the eddy current magnetic roller are arranged, so that different PET bottle chips are conveniently sorted, meanwhile, the sorting mechanism is arranged, so that the PET bottle chips with iron metal are conveniently subjected to secondary sorting, and an electric push rod and an infrared detector are arranged, so that the sorting efficiency is improved. The discharging amount of the discharging end of the connecting cylinder can be adjusted by adjusting the position of the adjusting plate.

The utility model relates to the technical field of vibrating screens, and discloses a novel ore vibrating screen which comprises a supporting frame body and a supporting column fixedly installed at the bottom end of the supporting frame body, a vibrating box body is arranged above the supporting frame body, and screening through holes are evenly formed in the bottom wall face of an inner cavity of the vibrating box body in a penetrating mode. A shaking mechanism for driving the vibration box body to vibrate is arranged on the supporting frame body, the shaking mechanism comprises a rotating main rod rotationally connected with the bottom end of the supporting frame body and eccentric wheels symmetrically and fixedly installed at the two ends of the rotating main rod, and a conveying mechanism is arranged in an inner cavity of the vibration box body; the transmission mechanism comprises transmission rollers symmetrically and rotationally connected with the two ends of the left side of the inner cavity of the vibration box body and a transmission belt connected between the two transmission rollers. The vibrating mechanism and the conveying mechanism are arranged, due to the fact that ore is pushed by the pushing plate to move clockwise along the inner cavity of the vibrating box body, the equipment can conduct sufficient screening operation on the ore, and the screening effect of the equipment on the ore is improved.

The utility model discloses asphalt concrete reclaimed material recovery equipment which comprises a box body, and relates to the technical field of asphalt concrete recovery. According to the asphalt concrete reclaimed material recycling equipment, aggregate can be subjected to three-stage screening through the arranged screening assembly, during use, the aggregate is poured into a fixed barrel through a feeding hopper, then a driving motor is started to drive a shaft rod to enable a scraping plate to rotate, and at the moment, the scraping plate can turn over to stir the aggregate in the fixed barrel and move towards a first discharging hopper; at the moment, small aggregates fall onto the top surface of the sieve plate through sieving holes, large aggregates fall onto a discharging device on the inner side of a first discharging hopper through a fixing barrel, then a reciprocating vibrator is started to drive the sieve plate to vibrate up and down to screen the aggregates, and at the moment, the small aggregates are discharged through a discharging port after being screened by the sieve plate; and aggregates with medium sizes can be discharged out of the device from the second discharging hopper through the screening plate, the screening effect is good, and the overall production efficiency is improved.

The present invention relates to the technical field of sand-dropping machine equipment, and discloses an exciter-type inertial vibration sand-dropping machine, comprising a base, a vibration structure and a screening structure; the base is rectangular, the vibration structure is fixedly arranged on the upper wall of the base, and the screening structure is fixedly arranged on the vibration structure; the present invention has a high-efficiency screening effect; through the synergistic effect of the first vibration component and the second vibration component, the vibration effect of the first screen plate can be improved, and the overall solution can be assembled and structured according to different needs, providing flexibility and customization possibilities to meet the needs of different users and different application scenarios; by setting a toggle structure, especially the design of a toggle rod, it can be reciprocated and tilted under the screen plate, so that the toggle rod can be inserted into the screen hole under the elastic force, effectively preventing the blockage of the screen hole and ensuring the continuity and stability of the screening process.

The invention relates to the technical field of PET processing, and particularly discloses an environment-friendly PET bottle flake crushing device which is used for solving the problem that in the prior art, the product quality and the processing efficiency cannot be guaranteed. Comprising a crushing box, the four corners of the lower end of the crushing box are each provided with a supporting leg, the upper end of the crushing box is provided with a label removing component used for removing labels of PET bottle bodies, the bottom of the crushing box is provided with a discharging port, the input end of the label removing component is connected with a driving shaft, and the other end of the driving shaft is connected with the output end of a driving motor set. The device is designed according to existing requirements, label removing treatment can be conducted on PET bottle bodies, then the label-removed bottle bodies are smashed, full smashing is conducted through the positive and negative cutter set, the screening effect is improved by means of swinging of a screening structure while smashing is conducted, in addition, back flushing operation on a filtering position is matched, and the screening effect is improved. And blockage of the filtering position is avoided, and smooth machining is guaranteed.

The invention provides a three-dimensional coordinate automatic tea-picking robot, and belongs to the field of tea-picking robots, the three-dimensional coordinate automatic tea-picking robot comprises: a support, the inner top of which is provided with a driving arm; and the picking assembly comprises a first electric telescopic rod, a lifting plate, a cutting knife, a connecting rod and a cover plate. The five functions of picking, collecting, screening, flattening and cleaning are achieved; tea leaf cutting and picking are achieved through the picking assembly and the transmission assembly, then the tea leaves are sucked into a collecting box through the collecting assembly, meanwhile, the tea leaves are efficiently and stably screened through the screening assembly, meanwhile, it is ensured that the tea leaves are evenly distributed in a collecting disc through the paving assembly, and accumulation is avoided; dust on the second dustproof net is cleaned through the cleaning assembly, and smooth operation of the collecting system is guaranteed; the labor burden is relieved, the picking cost is reduced, the picking operation can be continuously carried out, and the picking efficiency is improved.

The invention relates to the technical field of cement clinker production, and discloses a batching device and method.The batching device for cement clinker production comprises a mixing box, a stacking hopper, a screening plate and a stirring rod are sequentially installed in the mixing box from top to bottom, and a scraping and crushing mechanism is arranged on the upper side of the screening plate; the scraping and crushing mechanism is in transmission connection with the stirring rod, the screening plate comprises an annular groove, a conical plate is fixedly mounted on the annular groove, a plurality of annular holes are formed in the conical plate, and the scraping and crushing mechanism comprises a scraping assembly and a crushing assembly. Fine materials are screened out through the annular holes, caked or large-particle stones are intercepted, the pushing blocks drive the caked or large-particle stones to slide onto the annular grooves, the caked or large-particle stones are crushed into fine materials through the crushing rollers, and then the fine materials are pushed to the bottom of the material mixing box through the material pushing plate. And blocked agglomerated or large-particle stones are crushed and fall back into the mixing box while the conical plate is prevented from being blocked.

The utility model discloses a sand blasting mechanism with a buffer structure, which comprises a sand blasting box, a sliding frame is arranged on the rear side of the upper end of the sand blasting box, the front end of the sliding frame is in bolted connection with a sand blasting head, a threaded screw rod penetrates through the front end of the sliding frame, the right side end of the threaded screw rod is connected with a power motor, and a positioning plate is arranged in the middle of the sand blasting box. Limiting columns penetrate through the corners of the positioning plate, a clamping plate is connected to the upper end of the positioning plate, a screening box is arranged at the bottom end of the sand blasting box, a discharging hopper is fixedly connected to the right side end of the screening box, and a collecting box is arranged at the lower end of the discharging hopper. According to the sand blasting mechanism with the buffering structure, spraying materials can be recycled and screened in the sand blasting operation process of workpieces through the screening structure, the operation convenience is improved, meanwhile, due to the arrangement of the buffering structure, pressure can be absorbed and buffered when the sand blasting force is too large, the workpieces subjected to sand blasting are protected, and the service life of the workpieces is prolonged. And the damage or damage condition of the workpiece caused by overlarge sand blasting pressure is prevented, and the reject ratio is reduced.

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 invention belongs to the technical field of detection equipment, discloses a corn seed quality online detection device, and aims to solve the problems that an existing detection device selects unqualified seeds through a hyperspectral imaging system and a mechanical arm, and when the detection device is used, due to the fact that the mechanical arm treats the seeds every time, the time is different. In the prior art, screening is carried out only once, and the screening effect is limited, the technical scheme of the invention comprises a tank body, a plurality of supporting legs are fixed on the bottom surface of the tank body, and the supporting legs are fixed on the bottom surface of the tank body. A plurality of partition plates are fixedly installed in the tank body, first rotating discs are rotationally installed above the partition plates correspondingly, and through holes which are evenly distributed are fixedly formed in the top faces of the first rotating discs correspondingly. Seeds can be screened multiple times, the screening effect is better, multiple times of screening do not affect one another, and finally production and assembly can be conducted according to the screening frequency; and the use effect is better.

The utility model discloses a rice impurity screening device, which belongs to the technical field of rice processing, and comprises a flat plate, the inner wall of a screening tank is provided with a sliding chute positioned below a material guide plate, the screening tank is internally provided with a screening box positioned below the material guide plate, the outer wall of the screening box is fixedly connected with two sliding blocks positioned in the sliding chute, and the sliding blocks are arranged in the sliding chute. The two sliding blocks are slidably connected to the interiors of the sliding grooves, a discharging opening is formed in the lower end face of the screening tank, rice needing to be screened is put into the screening tank through the feeding opening, the rice needing to be screened falls on the upper end face of a first screening plate, large impurities such as rice straw and weeds are screened out through the first screening plate, and the screening efficiency is improved. Impurities are pushed to the slag discharging pipe to be discharged in the tangential direction of the outer circle of the first screening plate through the arc-shaped material pushing scraping plate, rice husks and gravel larger than rice are screened out through the screening box, and the rice screening device has the advantages of being high in working efficiency and good in screening effect.

The invention relates to the technical field of coal gangue, and provides a coal gangue rapid screening device which comprises a supporting frame, and a protective shell is fixedly connected to the top of the supporting frame; a crushing device is arranged at the top of the supporting frame and comprises a motor, the motor is fixedly connected to the side face of the protective shell, an output shaft of the motor is fixedly connected with a rotating rod, the circumferential face of the rotating rod is fixedly connected with a chain wheel, and a chain is arranged on the side face of the chain wheel; and crushing rollers are fixedly connected to the circumferential surface of the rotating rod. By means of the technical scheme, the problems that in the prior art, when coal gangue is crushed, the effect that the pressing plate reciprocates to extrude the coal gangue on the top of the crushing roller is difficult to achieve, the situation that the crushing effect is affected due to the fact that the coal gangue is too large to be clamped is difficult to prevent, the situation that crushing equipment is clamped is difficult to avoid, and the production efficiency is reduced are solved.

The utility model discloses a plastic waste gas filtering device, which belongs to the field of filtering devices, and comprises a filtering box, the inner wall of the filtering box is in threaded connection with a filtering net through a bolt, the side wall of the filtering box is provided with a gas inlet pipe and a flocculation box, and the upper end of the flocculation box is provided with a mounting seat. A servo motor is mounted on the inner wall of the mounting seat, a transmission shaft is mounted at the output end of the servo motor through a coupler, an exhaust cylinder is mounted at one end, extending into the flocculation box, of the transmission shaft, and an air delivery pipe is mounted between the filter box and the flocculation box. The device is simple in structure and convenient to use, the contact area of the waste gas and the atomized flocculating agent is increased, particles in the waste gas can be conveniently condensed, the screening effect of the filter screen is improved, meanwhile, waste gas bubbles entering the flocculating box are crushed through the crushing plate, and the device is simple in structure and convenient to use.

The utility model provides a limestone screening device for calcium hydroxide production, and belongs to the technical field of calcium hydroxide production. The limestone screening device for calcium hydroxide production comprises a crushing assembly and a screening assembly, crushing rollers are correspondingly and rotationally connected to the interior of a crushing bin, a motor is arranged on one side of the crushing bin, and the crushing rollers are fixedly connected with the output end of the motor. Then, two crushing rollers are driven by a motor to rotate, limestone raw materials can be crushed through the crushing rollers, crushed limestone raw material particles fall into the surface of a second screening plate, the first screening plate and the second screening plate can vibrate through a vibration machine, and multi-stage screening of the limestone raw material particles is achieved; according to the limestone screening device, the screening effect is improved, then limestone can be directly crushed, the steps are convenient and fast, meanwhile, multi-stage screening can be achieved on limestone raw materials, the screening effect is improved, and therefore the practicability is improved.

The invention discloses a screening device for magnetic material processing, and belongs to the technical field of material screening, the screening device comprises a conveying device, the conveying device is used for conveying magnetic materials to be screened, the conveying device is provided with a grinding device and three fine separation devices, the grinding device is used for grinding the magnetic materials, and the fine separation devices are arranged on the conveying device; the fine separation device is used for finely screening the magnetic material; the three fine separation devices can screen the magnetic materials into six different magnetic materials according to the magnetism and the thermal sensitivity of the magnetic materials, and the screening effect is good; magnetic materials are adsorbed through the electromagnets arranged in the rotary drum, the materials with different magnetisms are screened out from different discharging grooves in cooperation with rotation of the rotary drum, and the screening precision is high; the grinding device grinds a magnetic material to a specified size so that the magnetic material can be conveniently adsorbed by an electromagnet, then the ground magnetic material is automatically conveyed through the conveying device, and the magnetic material is conveyed to pass through the three fine separation devices, so that full-automatic fine separation of the magnetic material is realized, the automation degree is high, and the continuity is good.

The invention discloses graded screening equipment for metal powder processing, and relates to the technical field of screening equipment, the graded screening equipment comprises a screening box, and the screening box is sequentially provided with a graded screening mechanism, an intermittent feeding mechanism, a material processing mechanism and a material collecting mechanism; the grading screening mechanism comprises three vibrating screening assemblies arranged in the screening box and distributed at equal intervals and a variable speed driving assembly arranged outside the screening box, and the material processing mechanism comprises a dust processing assembly, a metal powder drying assembly and a control assembly. The grading screening mechanism is arranged, the sizes of screen holes of three screens are sequentially decreased from top to bottom, metal powder entering the screening box can be subjected to grading screening treatment conveniently, and therefore the metal powder obtained after grinding can be separated in order according to the particle size, metal powder of various different particle sizes can be screened out conveniently, and the screening effect is improved; and through the vibration screening effect, the situation that the screen is blocked can be effectively reduced, and the screening efficiency can be improved.

The invention discloses a shiny-leaved yellowhorn seed coat crushing and screening device, and relates to the technical field of shiny-leaved yellowhorn processing. The invention provides a shiny-leaved yellowhorn seed coat crushing and screening device which comprises a rack, the top end of the rack is fixedly connected with a crushing assembly, the top end of the rack is fixedly connected with a suction assembly, the bottom end of the crushing assembly communicates with a discharging frame, the shiny-leaved yellowhorn seed coat crushing and screening device further comprises a connecting frame, the connecting frame is clamped to the rack, and the top end of the connecting frame is attached to the bottom end of the discharging frame. Hard seed coats are crushed through the crushing assembly, the crushed seed coats and seed coats enter the discharging frame, most of the seed coats are sucked away through the suction assembly to be separated from the seed coats, the preliminarily screened seed coats downwards enter the connecting frame, and the seed coats can be rolled through rotation and front-back movement of the left rolling column and the right rolling column. The seed flesh and the seed coats which are kneaded fall into the lower side of the interior of the screening frame, and the seed coats are screened out through the screening frame, so that the cleanliness and the screening effect of the seed flesh are remarkably improved.

The invention discloses magnetic separation screening equipment for steel balls of a ball mill. The magnetic separation screening equipment comprises a screening box, an upper-layer screening frame, a lower-layer screening frame, a magnetic separation screening mechanism and a vibration exciter, the upper-layer screening frame and the lower-layer screening frame are obliquely arranged in the screening box from top to bottom; a steel ball inlet is formed in the higher end, corresponding to the upper-layer screening frame, of the screening box. A first collecting tank is arranged at the lower end of the upper-layer screening frame, and a first screening outlet is formed in one side of the first collecting tank; a second collecting tank is arranged at the lower end of the lower-layer screening frame, and a second screening outlet is formed in one side of the second collecting tank; a discharging channel communicated with the lower layer is arranged behind the second collecting tank, one end of the magnetic separation screening mechanism is installed above the second collecting tank, and the other end of the magnetic separation screening mechanism stretches across the position above the discharging channel. The vibration exciter is installed at the bottom of the screening box. The special-shaped steel balls can be removed, and the quality of the reused steel balls is improved, so that the working efficiency of the ball mill is improved, the energy consumption is reduced, and the efficiency is improved.

The utility model discloses a sorting machine for pumpkin seed processing and production, and relates to the technical field of sorting machines. The device comprises two supporting plates, wherein a vibration mechanism and a reset assembly are arranged on the two supporting plates; a sorting plate is fixedly connected between the two supporting plates, an I-shaped supporting plate is fixedly connected between the two supporting plates, the vibrating mechanism comprises a plurality of vibrating assemblies and a driving assembly, each vibrating assembly comprises an L-shaped supporting plate fixedly connected to the bottom of the corresponding supporting plate, a first sleeve is fixedly connected to the bottom of each L-shaped supporting plate, and a second sleeve is fixedly connected to the bottom of each first sleeve. Two first connecting rods are fixedly connected to the inner wall of the first sleeve. According to the sorting machine for processing and producing the pumpkin seeds, the vibrating mechanism is arranged, so that the problems that in the using process of an existing sorting machine for processing and producing the pumpkin seeds, when most sorting machines sort the pumpkin seeds, the pumpkin seeds move violently on a screen due to overall vibration, accurate grading is difficult to achieve, and the product quality is reduced are solved.