66 results about "Screening techniques" patented technology

The invention discloses a double-roller spin vibration screen with an anti-blocking function, and relates to the technical field of grain screening, the double-roller spin vibration screen comprises a support, a flow dividing channel is cooperatively installed on the upper side of the support, a feeding bin is cooperatively installed on the upper side of the flow dividing channel, and a first screening box and a second screening box are cooperatively installed on the support; a screening plate is cooperatively installed in the second screening box, a roller frame is rotatably and cooperatively installed in the first screening box, a first rotary screening part is cooperatively installed on the roller frame, the first rotary screening part comprises a first screening cylinder, a first fixing plate and a second fixing plate, the first screening cylinder is cooperatively installed on the roller frame, and the second screening cylinder is cooperatively installed on the roller frame. And a plurality of first through holes are formed in the first screening cylinder. The section of the first through hole is in a lightning shape, and by means of the structure, even if straw is clamped in the first through hole, the cleanliness of the first through hole is improved due to the fact that the structure of the first through hole cannot penetrate through the first through hole.

The invention relates to the technical field of screening, in particular to a traditional Chinese medicine powder separating and screening device and method.The traditional Chinese medicine powder separating and screening device is characterized in that a screening assembly comprises a rotating supporting frame, a sliding plate, a screening plate and a vibrator, the rotating supporting frame is rotationally arranged on a screening shell, the sliding plate is slidably connected with the rotating supporting frame and located on the rotating supporting frame, and the screening plate is arranged on the rotating supporting frame; the material pushing assembly comprises a sliding baffle, a mover, a second baffle and a material pushing roller, the sliding baffle is slidably connected with the storage cavity of the screening shell and connected with the sliding plate, when the rotating supporting frame is blocked, the sliding baffle slides to drive the sliding plate and the rotating supporting frame to incline, the mover is arranged in the storage cavity, and the second baffle is connected with the output end of the mover; and the material pushing roller is arranged on the second baffle and used for pushing the raw materials on the sieve plate to roll upwards along the sieve plate in the inclined state, and the sieve net can be automatically cleaned when the sieve net is blocked, so that the blocking condition is reduced, and the screening efficiency is improved.

The invention discloses a two-stage slag separator tailing diluting and re-screening device, which relates to the technical field of tailing screening, and comprises a box body, a first screening cavity, a diluting cavity and a second screening cavity, a first screening assembly and a second screening assembly are arranged on the box body; the first screening assembly comprises a first connecting seat, a first screening seat, a first synchronous belt structure and a screening mesh belt; heavy impurities in tailings are screened through the arranged diluting assembly and the arranged first screening assembly, light impurities in the tailings are screened through cooperation of a first screening base, a first synchronous belt structure, a screening net belt and a liquid guide pipe, and the impurities are collected through cooperation of a negative pressure suction nozzle, a negative pressure pipe, negative pressure equipment and a collecting tank; according to the screening device, the supporting plate, the filtering base, the filtering piece, the filtering plate, the first air guiding piece, the second air guiding piece and the driving motor are arranged, collected impurities are cleaned, the first screening assembly does not need to be stopped, the screening effect of the first screening assembly is improved, and the using effect of the screening device is improved.

The utility model relates to the technical field of abrasive material screening, and discloses a sand blasting machine abrasive material screening device which comprises a screening support, a screening material barrel is installed at the top of the screening support and further comprises a first filter screen and a second filter screen, a rotating shaft is arranged in the center of the interior of the screening material barrel, and a disturbance mechanism is arranged on the rotating shaft. The disturbance mechanism comprises a material distributing rod and a material mixing ball fixed to the end of the material distributing rod. The screening barrel is obliquely installed in the screening support, along with rotation of the screening barrel, grinding materials in the screening barrel can be driven to correspondingly move, the grinding materials are rapidly separated under the action of centrifugal force, the screening efficiency is improved, the hole diameter of the first filter screen and the hole diameter of the second filter screen are set from dense to sparse, classified filtering can be conducted, and the screening efficiency is improved. By means of the structure, grinding materials with different particle sizes can be effectively separated, the screening effect is optimized, through a disturbance mechanism composed of the material distributing rods and the material mixing balls, grinding material screening can be promoted, the grinding materials are prevented from being stacked and agglomerated, and the recycling rate of the grinding materials is increased.

The utility model relates to the technical field of dry-mixed mortar screening, and discloses a screening machine for dry-mixed mortar production, which comprises a support, a box body is arranged at the top end of the support, connecting blocks are fixedly connected to the bottoms of the left end and the right end of the box body, a screening plate is arranged on the inner wall of the box body, and a plurality of discharging ports are fixedly connected to the front end of the box body. And the outer walls of the discharging openings are sleeved with moving plates, inserting rods are arranged at the left ends and the right ends of the moving plates correspondingly, fixing blocks are fixedly connected to the rear ends of the inserting rods, the fixing blocks are fixedly connected to the outer wall of the box body, limiting assemblies are arranged on the outer walls of the inserting rods, and guide grooves are formed in the front ends of the multiple discharging openings correspondingly. According to the dry-mixed mortar guiding and conveying device, the guide groove can be detached by pressing the rotating block to compress the third spring and taking out the limiting piece, mortar attached and accumulated on the inner wall can be conveniently removed, the cleaning difficulty is lowered, it is guaranteed that the guide groove is always kept smooth, and the high efficiency and accuracy of dry-mixed mortar guiding and conveying are guaranteed.

The invention belongs to the technical field of screening, and particularly relates to a screening device for rice processing, which comprises a fixed box, a material guide inclined plate I, a material guide inclined plate II and a material guide inclined plate III which are sequentially aligned end to end and have the same number of partition plate parts are mounted on the fixed box, and the material guide inclined plate II is divided into a plurality of color sorting areas by the partition plate parts; a color sorting box located above the second material guiding inclined plate is installed on the upper portion of the fixing box, and a row of baffles driven by first electric push rods are arranged on the upper portion of the third material guiding inclined plate. The rice is subjected to color sorting through a color sorting box, when the rice meets the requirement, a through hole is closed by a corresponding lifting plate, when the rice does not meet the requirement, the through hole is not closed by the corresponding lifting plate, and the baffle moves upwards; and the rice meeting the requirements slides onto the screening plate to be subjected to grading treatment, and the rice not meeting the requirements falls down from the through holes, so that the rice is automatically subjected to color sorting and grading, color sorting and grading are continuous, and the working efficiency is high.

The invention relates to the technical field of raw material screening, in particular to a special feed raw material screening device for sows. Comprising a bottom plate, a support is fixed to the bottom plate, an upper groove is fixed to the support, an annular cavity is formed in the upper groove, a circular plate is arranged in the upper groove, a plurality of screening units are arranged at the upper end of the circular plate, a screening cavity is formed between every two adjacent screening units, open grooves corresponding to the inner spaces of the screening units are formed in the circular plate, and a lower groove is fixed to the upper end of the bottom plate; the open groove is located above the lower groove, a stand column concentric with the lower groove is fixed to the upper end of the bottom plate, the stand column is rotationally connected with the circular plate, a driving unit is arranged on the stand column and connected with the circular plate, and the driving unit can drive the circular plate and the multiple screening units to rotate. The circular plate rotates to drive raw materials to impact the inclined filter plate under the action of centrifugal force, so that fine impurities are forced to penetrate through filter holes; the second motor rotates back and forth to cause intermittent impact of raw materials on the filter plate, impurity adhesion and blockage are avoided, and the impurity separation rate is remarkably increased.

The utility model belongs to the technical field of coal mine screening, and particularly relates to coal mine screening equipment for coal mining, which comprises a screen mesh for screening a coal mine and a support frame arranged below the screen mesh and used for supporting and fixing the screen mesh, the screen mesh comprises a fine screen part with smaller screen meshes and a coarse screen part with larger screen meshes, and clamping rings are symmetrically installed at the two ends of the screen cloth, rotating grooves matched with the clamping rings are formed in the supporting frame, when the screening device is used, the screen cloth is rotated by a proper angle along the rotating grooves, switching of the fine screening part and the coarse screening part is conveniently achieved, and therefore screening of coal briquettes with different particle sizes is conveniently achieved. By designing the screen comprising the fine screening part and the coarse screening part and being provided with the rotatable clamping ring and the rotating groove structure, the equipment can conveniently switch the screen part so as to meet the screening requirements of coal briquettes with different particle sizes, the tedious operation of replacing the whole screen is avoided, the downtime is shortened, and the production efficiency is improved.

The utility model relates to the technical field of quartz sand filter material screening, and discloses a quartz sand filter material screening machine for sewage treatment, which comprises a screening box, the top of the screening box is fixedly connected with a feed hopper, the top of the feed hopper is hinged with a sealing cover plate, and the rear end of the screening box is provided with a dust collection assembly. A box door is hinged to the front end of the screening box, a first screen is arranged in the screening box, a second screen is arranged at the lower end of the first screen, springs are fixedly connected to the bottom of the first screen and the bottom of the second screen, and fixing plates are fixedly connected to the bottoms of the springs. The dust collection assembly is arranged, specifically, the negative pressure fan is started in the screening process, negative pressure is generated in the square pipe through the negative pressure fan, dust generated in the screening process is sucked into the square pipe to drive the interior of the square pipe, the dust is filtered and removed through the two filter screens, and the dust generated in the screening process is effectively reduced; and the working environment and the health of operators are protected.

The utility model discloses a vibrating type multi-stage screening coal screening device in the technical field of coal screening, which comprises a screening box, three first discharging frames which are uniformly arranged are arranged on one side of the screening box, a second discharging frame is arranged at the bottom of the screening box, a feeding frame is arranged on the top of the screening box and close to one side, and a discharging frame is arranged on the top of the screening box. Movable through holes are formed in the two sides of the screening box correspondingly, fixing blocks on the two sides of the screening box can support a screening part upwards through a supporting part, a vibration assembly can press the screening part downwards, and the supporting part supports the screening part upwards, so that the screening part vibrates up and down in the screening box, multiple screening is conducted on materials through the screening part, and the screening efficiency is improved. The problems that coal of various different sizes cannot be screened at the same time, vibration materials are not convenient to screen, the materials are prone to blocking a screening structure, and the efficiency and practicability of the equipment for screening the coal are affected are solved.

The utility model discloses roadbed filler screening equipment, which belongs to the technical field of filler screening and comprises a mounting frame arranged on the ground, sliding through holes are formed in two side walls of the mounting frame, sliding plates are arranged in the sliding through holes in a sliding manner, and a screening frame is fixed between the two sliding plates. An electric push rod for driving the screening frame to move is fixedly installed on one side wall in the installation frame, a sliding groove is formed in the screening frame, a screening assembly convenient to replace is arranged in the sliding groove in a sliding mode, and a top dustproof assembly capable of being stored is fixedly installed at the top of the installation frame. The screening plate can be rapidly disassembled, assembled and replaced according to the screening requirements of different roadbed fillers, the roadbed fillers blocked in the screening holes can be conveniently cleaned, the service life of the screening plate is prolonged, meanwhile, dust flying in the roadbed filler screening process is reduced through the storable top dustproof assembly, the screening environment quality is improved, and the screening efficiency is improved. The practicability is high.

The utility model relates to medicinal plant screening technical field, concretely is a kind of medicinal plant screening processing device, including base, the base is openwork, connect device with factory power supply, when equipment starts, operating personnel opens motor through control switch, motor is market product, the rotating shaft of motor output end drives gear rotation, gear is engaged with the disc tooth on mandrel, make mandrel rotate, and then drive the synchronous rotation of eccentric wheel of both ends, in the rotation process of eccentric wheel, the fixed plate of one side of screen frame is periodically pushed and pulled by push-pull link, make screen frame reciprocating vibration along the roller track in cross bar sliding groove, after screening material pours from screen frame, under the action of screen vibration, medicinal plant slides along the inclined screen and falls to discharge port and is discharged, fine impurity particle that meets screen mesh aperture passes through screen, under the action of screen vibration and inclination angle, continue to move to screen low end, finally discharge outlet two of bottom plate are discharged, realize the efficient screening and classification of material.

The utility model relates to the technical field of sand material screening, and discloses sand material screening equipment for dry-mixed mortar production, which comprises a main shell, a screening box is arranged in the main shell, uniformly distributed screening holes are formed in the lower surface of the screening box, a guide rod is fixed on the rear side of the inner part of the screening box, and the guide rod is connected with the screening box. And an auxiliary block slides on the outer diameter of the guide rod. According to the utility model, the interior of the screening box after screening is cleaned, so that sand or dust can be prevented from being accumulated in the screening box or accumulated, and the accumulated sand and dust can possibly cause premature abrasion or blockage of equipment parts, so that the screening efficiency is influenced, and even equipment faults are caused. Regular cleaning can keep the normal operation state of the equipment, and the service life of the equipment is prolonged. And in the cleaning process, the soft cleaning brush can effectively remove adhesive substances and particulate matters on the inner wall of the screening box and around the screening holes, and the substances generally influence the screening efficiency and the service life of the screening holes.

The utility model relates to the technical field of steel ball screening, and discloses a wear-resistant steel ball classifying and screening device which comprises a classifying and screening assembly, a plurality of collecting assemblies are detachably installed in the classifying and screening assembly, and a storage assembly is fixedly installed at the top of the right side of the classifying and screening assembly. A blocking assembly is arranged on the right side of the classifying and screening assembly and located under the storage assembly. According to the wear-resistant steel ball sorting device, wear-resistant steel balls to be sorted are placed in the storage hopper, then the bent pulling plate is pulled rightwards, at the moment, the bent pulling plate can drive the blocking plate and the movable sliding block to move rightwards, meanwhile, the reset spring can contract and be shortened, the blocking plate can be separated from the bottom of the discharging pipe, and the wear-resistant steel balls can be sorted. At the moment, the to-be-classified wear-resistant steel balls in the storage hopper can fall to the position between the two conical guide columns along the discharging pipe and then slide down along the track between the two conical guide columns, and the wear-resistant steel balls with different diameters can be classified and screened along with the larger and larger gap of the track between the two conical guide columns.

The utility model is suitable for the technical field of screening, and provides a raw material screening device for material fermentation, which comprises a shell, a screening device and a material feeding device, the screening rods are rotationally connected with the shell, an elastic piece is arranged between every two screening rods, the screening rods abut against an adjusting assembly, and the adjusting assembly is arranged on the shell; the buffer flow guide box is arranged on the shell; the multiple screening rods are driven to rotate around the shell through the adjusting assembly, then the included angle between the multiple screening rods is adjusted, then the distance between the screening rods is adjusted, raw materials are put into the hopper and fall onto the screening rods through the hopper, and due to the gravity effect, the raw materials roll on the two screening rods till the diameter of the raw materials is smaller than the distance between the two screening rods; and the raw materials are guided into the containing box through the buffer flow guide box, and the raw material screening device has the advantages that screening is convenient and efficient, and the raw materials are protected.

The invention relates to the technical field of stainless steel fastener guiding and screening, in particular to a side hanging type guiding and screening mechanism of a stainless steel fastener guiding mechanism, which comprises a horizontal main frame, a top-mounted conveying belt is mounted on the upper surface of the horizontal main frame, and upward raised lateral limiting plates are arranged on the upper surface of the horizontal main frame and positioned on two sides of the top-mounted conveying belt. According to the side hanging type material guiding and screening mechanism of the stainless steel fastener material guiding mechanism, side hanging type structural design and electric control type structural design are adopted, overturning adjustment can be conducted on an overhead type material conveying belt, and therefore stainless steel fasteners in the conveying process are screened and directly act on the stainless steel fasteners in the conveying process; the screening efficiency is very high; the electric control type lateral overturning frame is connected to the outer side face of the lateral limiting plate in a hinged mode and can be directly overturned and attached to the outer side of the horizontal main machine frame in idle time, and the space layout is more reasonable.

The utility model discloses an asphalt modifier screening device, relates to screening technical field, including screening mechanism and collecting box, screening mechanism includes screening box, two screen mesh, two fixed subassembly and two toggle subassembly, two screen mesh are provided respectively in the upper half part and the lower half part of screening box, two fixed subassembly and two toggle subassembly are fixed subassembly, two toggle subassembly is provided respectively in the upper half part and the lower half part of screening box. Protection frames are arranged on the peripheries of the two screening nets, the two protection frames are obliquely arranged in the screening box, the two fixing assemblies are arranged on the upper portions, close to the two sides, of the two protection frames correspondingly, the two stirring assemblies are arranged on the lower portions, close to the two sides, of the two protection frames correspondingly, and the collecting box is arranged on the left side of the screening box. The two filter screens with different pore sizes are arranged to screen a modifier for multiple times, the screening effect is improved, and the problem of blockage caused by accumulation of the modifier is prevented through stirring of the obliquely-arranged screen and the eccentric wheel.

The utility model relates to the technical field of feed screening, and discloses a feed screening device for piglet feed processing, which comprises a bottom plate and a box body, two sides of the top of the bottom plate are bolted with support legs, one side of each support leg is bolted with one side of the box body, and one side of the bottom plate is provided with a storage table; the second motor is started to drive the first rotating piece to do circular motion, the second connecting piece pulls the sieve plate under the influence of the first rotating piece, the sieve plate shakes up and down under the assistance of the sliding rail and the sliding block, feed falls into different receiving boxes to be collected, and the receiving boxes are replaced with water receiving boxes after use. A water pump and a second motor are started to enable a connecting box to slide on the top of the inner wall of the box body, at the moment, a spray head uniformly flushes the surface of a sieve plate at the top of the sieve plate, feed blocks blocked in screening holes in the surface of the sieve plate are dredged, and the situation that in the next use process, due to screening hole blocking, the screening efficiency is low is prevented; and rapid promotion of work is facilitated.

The invention discloses a fine iron powder screening device and method, and belongs to the technical field of fine iron powder screening. The fine iron powder screening device comprises a discharging pipe, a screening mechanism is arranged at the bottom of the discharging pipe, and a supporting mechanism for supporting and vibrating the screening mechanism is arranged below the discharging pipe; the screening mechanism is arranged at the top of the supporting mechanism, the screening mechanism comprises a second screening assembly used for screening materials and a first screening assembly used for being matched with the second screening assembly to screen the materials, the second screening assembly is arranged in the first screening assembly, and the first screening assembly comprises a limiting material storage pipe; through mutual cooperation of multiple structures, a user can quickly adjust the screening precision of the screening device according to actual processing requirements, so that the screening device can better meet diversified processing requirements of the user, and the use experience of the user on the screening device is improved.

This utility model discloses a steel ball screening device, belonging to the field of steel ball screening technology. It includes a frame and a first conveyor belt, which is installed at an angle on the frame. A screening assembly is arranged above the first conveyor belt. The screening assembly includes a screening plate and a deflecting plate, both of which are designed at an angle. A gap is provided between the screening plate and the first conveyor belt. The screening plate is located on the lower side of the first conveyor belt. Because both the screening plate and the deflecting plate are designed at an angle, during movement, the steel balls will continuously contact the screening plate and the deflecting plate, achieving the effect of deflecting the steel balls. This prevents steel balls smaller than a millimeter from being mixed with larger steel balls, achieving separation of small steel balls, which then fall through the gap at the bottom of the screening plate. Steel balls larger than a millimeter roll off the end of the first conveyor belt, thus achieving the screening of the steel balls.

The utility model relates to the technical field of injection molding raw material screening, in particular to an injection molding raw material screening device which comprises a cleaning box installed on the right side of the top of a screening box. And a cleaning device for cleaning and removing impurities from the injection molding raw material particles is arranged in the cleaning box. Multi-stage screening of injection molding raw material particles is achieved through the screening plate and the material guiding screening plate which are vertically arranged at equal intervals, then a small amount of metal impurities remaining in internal gaps of the injection molding raw material particles are comprehensively screened out, water flow in the cleaning box is disturbed through the rotating cleaning cylinder, and therefore the raw material particles in the cleaning box are cleaned; and in the rotating process, the raw materials are guided into the cleaning cylinder through the feeding port, stirring packing augers on the outer surface of the rotating shaft are matched, raw material particles in the cleaning cylinder are stirred and cleaned, and the cleaning efficiency is further improved.

The application belongs to the technical field of metal product screening, and discloses a product screening device for intelligent manufacturing of metal materials; the product screening device comprises a base, the top end of the base is fixedly connected with a cleaning cylinder; the device is provided with a plug rod and a sleeve on the outer wall of the second conveying belt; when it is necessary to screen the bearing sleeve body, the plug rod and the sleeve are inserted into the inner wall of the bearing sleeve body; the sleeve is made of sponge material, so when the bearing sleeve body with irregular protrusions on the inner wall is encountered, the bearing sleeve body will be clamped on the sleeve; when the bearing sleeve body is removed from the top end of the first conveying belt, the bearing sleeve body with a complete and qualified inner wall will first fall downward under the action of gravity and fall into the turnover cylinder, and the bearing sleeve body with irregular protrusions on the inner wall will continue to move to one side until the unqualified bearing sleeve body is removed from the outer wall of the sleeve by the removing assembly, so that the bearing sleeve body can be screened and processed, and the problem that the inner wall of the bearing sleeve body is inconvenient to detect is solved.

The utility model belongs to the technical field of paint raw material screening, and particularly relates to a paint raw material screening and impurity removing device which comprises a shell, an end cover is fixed to the right end of the shell through a bolt, a moving mechanism is fixed to the upper end in the shell, a support is fixed to the lower end of the moving mechanism, and a rotating rod is rotationally arranged on the right side of the support through a bearing. A transmission mechanism is fixed to the position, located at the upper end of the rotating rod, of the right side of the support, and fixing plates are fixed to the front side and the rear side of the rotating rod. The whole screening process is set in the shell and is in a closed environment, in the screening process, a diluent does not float into air, and even if a small amount of diluent is raised, the diluent can be separated from the shell. And after screening is finished, the screening cylinder can be directly moved to the outside of the shell and is adjusted to be inclined from the horizontal state, so that the diluent in the screening cylinder is poured out, and concentrated collection is facilitated.

The utility model discloses a novel pollutant screening device, and relates to the technical field of screening. The top end of the outer frame is connected with a supporting plate, the side wall of the supporting plate is connected with a second rotating shaft, the surface of the second rotating shaft is connected with a worm gear, the outer frame is connected with a first rotating shaft, the first rotating shaft penetrates through the front end of the outer frame, the first rotating shaft is connected with a worm and a scraping plate, and the scraping plate is located below the supporting plate; lead screws are connected to the front end and the rear end of the scraping plate and penetrate through the scraping plate. Through the arrangement of the scraping plate and the spray head, the scraping plate can accurately move under the driving of the motor and the lead screw, the surface of the supporting plate can be fully covered, the spray head sprays water upwards, the flushing effect is achieved in the cleaning process, the cleaning effect is improved, excrement residues are reduced, and when the scraping plate does not work, the scraping plate can move into the groove, so that the cleaning effect is improved. The influence on the rotation of the supporting plate is avoided, and the overall coordination and stability of the device are improved.

The utility model relates to the technical field of stone screening, and specifically to a screening device. The specific technical scheme is: a screening device, including a screening box with an opening at the top, a first conveyor belt is provided in the screening box through a first upper support shaft and a first lower support shaft sleeve, a second conveyor belt is provided below the first conveyor belt through a second upper support shaft and a second lower support shaft sleeve, a first sieve plate is symmetrically provided on the first conveyor belt, a second sieve plate is symmetrically provided on the second conveyor belt, the first conveyor belt and the second conveyor belt are staggered, and one end of the first conveyor belt is inclined toward the second conveyor belt, and the end of the second conveyor belt located below the first conveyor belt is inclined toward the bottom of the screening box. The utility model can realize automatic multi-stage screening of rubble waste, and is convenient for classifying and collecting rubble waste of various sizes after screening.

The invention discloses a pulverizing and screening all-in-one machine which comprises a pulverizer and a vibrating screen, and the outlet end of the pulverizer is connected with a treatment box through an inflow pipeline; a screening cylinder is arranged in the treatment box, a rotating cylinder is rotationally connected into the screening cylinder, a net cylinder is arranged on the portion, located in the screening cylinder, of the rotating cylinder, and a material stirring plate is arranged on the outer side of the net cylinder. The invention relates to the technical field of material screening, materials are dispersed and pushed through the rotary material stirring screen plate and the material stirring panel, the materials penetrate through meshes of the material stirring screen plate, and loosening treatment of the materials is achieved. And meanwhile, when the vacuum feeding machine sucks the materials in the temporary storage barrel into the vibrating screen, the materials are longitudinally segmented through the multiple first fins, so that the materials smoothly flow out in the second gaps. Meanwhile, the spiral alloy steel wire vibrates in the flowing process of the materials, so that the sections of the materials are circumferentially divided into loose shapes when the materials flow out of the first gap, and the looseness of the materials is further guaranteed.

The utility model relates to the technical field of steel ball screening, in particular to a steel ball size screening jig which comprises an installation frame and a handle, the handle is fixedly installed on the side wall of one end of the installation frame, the installation frame is in a mouth shape, and a containing groove is formed in the upper end of the installation frame. A sieve plate I is placed in the placing groove, and a plurality of grooves are uniformly formed in the upper end of the sieve plate I; limiting pins are elastically connected to the front side and the rear side of one end of the mounting frame, one end of each limiting pin penetrates through the mounting frame and is connected with one end of the first screening plate, a threaded cylinder is fixedly mounted on the outer wall of one end of the mounting frame, and a threaded column is arranged at one end of the handle. When the steel ball screening device is used, the sieve plate I is mounted in the mounting frame, then the sieve plate I is inserted into a container filled with steel balls, and then the sieve plate I is lifted upwards, so that the steel balls conforming to the size can enter the grooves, the steel balls conforming to the size can be quickly screened out, and the steel ball screening device is suitable for screening small batches of steel balls.

The utility model discloses an intelligent tea grading and screening device which comprises a screening machine box, a feeding port is formed in the upper portion of the screening machine box, a movable clamping groove is formed in the inner wall of the screening machine box, a screening frame is connected to the movable clamping groove in a clamped mode, a screening filter screen is arranged on the screening frame, and the intelligent tea grading and screening device further comprises a sliding groove formed in the side wall of the screening machine box. Connecting rods fixedly connected to the two sides of the screening frame are arranged on the sliding grooves in a sliding mode. A screening vibration frame is fixedly connected to the connecting rod, a vibration air cylinder is fixedly connected to the side wall of the screening machine box, and the output end of the vibration air cylinder is matched with the screening vibration frame. The utility model belongs to the technical field of tea screening, and effectively solves the problems that an intelligent tea grading screening device lacks a quantitative feeding function, screened raw materials cannot be taken out in time, and the follow-up screening effect is affected.

The invention relates to the technical field of ore screening, in particular to molybdenum concentrate screening equipment which comprises a screening box and two screens arranged on the inner wall of the screening box, the side face of the screening box is provided with a driving structure used for driving the screening box, and the two side faces of the screening box are each fixedly provided with two elastic supporting legs. Four transverse plates corresponding to the two screens are fixedly installed on the inner wall of the screening box, two reels are symmetrically arranged on the bottom faces of the transverse plates, and connecting ropes are arranged on the inner sides of the reels; before the anti-blocking bouncy ball is pulled up, the deformation assembly drives the four arc plates to gather together to form a sleeve, and when the bouncy ball passes through, the cleaning scraper made of the plastic material can flexibly scrape ore particles on the surface of the bouncy ball and penetrating into the bouncy ball, so that the problems of elasticity reduction, weight increase and the like caused by ore attachment are avoided, the situation that frequent replacement is needed due to failure of the bouncy ball is reduced, and the service life of the bouncy ball is prolonged. The maintenance cost and the downtime are reduced, and continuous and effective blockage prevention is guaranteed.

The utility model discloses a broken stone screening machine, relates to broken stone screening technical field, including screening machine and screening net, the utility model discloses a plurality of screening net can be dismantled to change and install according to the need by setting dissembling and assembling subassembly, rotary knob drive L-shaped baffle to be away from each other until L-shaped baffle breaks away from inclined slide strip, the operation is simple and fast, and the efficiency is high. By arranging a limiting assembly, an iron bar is clamped into a first inserting groove and adsorbs a first magnetic block, the position of an L-shaped baffle can be limited in the disassembling and assembling process, the L-shaped baffle is prevented from shaking left and right, a movable plate is moved forwards to drive the iron bar to be separated from the first inserting groove, and a rotary knob is rotated reversely to enable the L-shaped baffle to be attached to each other; the iron strip is just aligned to the second inserting groove, the iron strip is clamped into the second inserting groove and adsorbs the second magnetic block so that the position of the L-shaped baffle can be limited in the gravel screening period, left-right shaking of the L-shaped baffle is avoided, and by arranging the inclined groove, the situation that gravel is stacked in the inclined groove can be avoided.