37 results about "Screening techniques" patented technology

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 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 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 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 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 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 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.

The invention provides a multiferroic material screening method and system, and relates to the technical field of functional material screening, and the method comprises the steps: determining a material intrinsic parameter set according to a pre-established candidate multiferroic material database; generating a candidate material performance evaluation index set according to a mapping relation between the intrinsic parameter set and a predefined application performance index; calculating space magnetic field gradient distribution according to the performance index set and the sensor magnet structure model; coupling the magnetic field gradient and the performance index set to generate a sensitivity data set; based on the sensitivity data set and the performance index set, evaluating and outputting a preferred material sorting list; the system comprises a parameter acquisition module, an index mapping module, a magnetic field analysis module, a sensitivity calculation module and a score sorting module, and automatic screening is achieved through calculation software platform integration. According to the method, the problems that a traditional method is low in efficiency, high in subjectivity and disjointed with a specific application scene are solved, and rapid, objective and accurate multiferroic material screening is achieved.

The utility model discloses a multistage screening equipment for flour impurity removal relates to flour impurity removal multistage screening technical field, this multistage screening equipment for flour impurity removal, including base, the bottom surface of base is installed vibration motor, the upper portion of base is provided with first screening frame, second screening frame and third screening frame, one side of base is installed with connecting assembly, one side of connecting assembly is installed with fixed component, among them: The connecting assembly includes connecting plate, and the connecting plate fixed mounting is in one side of base, and one side of the connecting plate equidistance is installed with three fixed plate, and the fixed component is rotatably connected in the inner wall of fixed plate, The fixed component includes buckling plate. The utility model discloses through connecting assembly through the rotation column rotatable connection in the inner wall of fixed plate, can make its convenient buckling plate's rotation drive three screening frame's rotation, relative to the first have layer by layer dismounting and enhance the efficiency of dismounting maintenance.

The utility model discloses a screening device for mineral separation, which belongs to the technical field of screening, and comprises a support frame, the top of the support frame is fixedly connected with a first shell, the bottom of the first shell is fixedly connected with a discharging hopper, the outer surface of the first shell is fixedly connected with a second shell, the top of the second shell is fixedly connected with a feeding hopper, and the feeding hopper is fixedly connected with a discharging hopper. The inner walls of the two sides of the first shell are rotationally connected with a rotating cylinder, a plurality of through holes which are annularly distributed at equal intervals are formed in the outer surface of the rotating cylinder, the movable dredging assembly is used for screening ore, and the movable dredging assembly drives a gear and a rack to move in a meshed mode through a second motor; the connecting frame and the scraping plate at the bottom of the connecting frame slide in the horizontal direction, the elastic conical blocks on the scraping plate make movable contact with the through holes in the outer surface of the rotating cylinder, blocked screen holes are effectively dredged, the screening efficiency is remarkably improved, it is ensured that fine-fraction minerals can smoothly pass through the screen holes, and the blocking problem in the screening process is solved.

The invention discloses a screening device for regenerated plastic particles, and relates to the technical field of screening. The screening device for the regenerated plastic particles comprises a double-layer machine body, a screening mechanism and a discharging mechanism installed on the edge side of the top of the double-layer machine body, the screening mechanism comprises a flow dividing assembly, a screen and a supporting sleeve, the supporting sleeve is fixedly installed at the bottom of the screen, and a bent flow dividing plate and a flow guiding plate are sequentially installed in the supporting sleeve in a sliding mode; a first groove is formed in the surface of the bending splitter plate, a second groove is formed in the surface of the flow guide plate, the discharging mechanism comprises a storage assembly and a rotating shaft, a base plate is slidably installed on the surface of the rotating shaft through a sliding sleeve, material stirring teeth are fixedly connected to the bottom of the base plate, a pushing plate is fixedly connected to the top of the base plate, and a disc is detachably and fixedly installed at the bottom end of the rotating shaft; the anti-blocking purpose is achieved, materials can be scraped, discharging is smooth, the downward sliding path of the materials is changed, the materials are scattered in time, and the screening effect is good.

The present application relates to material screening technical field, specifically to conical anti-blocking discharge screening device, including the partition compartment disc installed in the inside of tube mill, the inside center of partition compartment disc is provided with center sieve plate, partition compartment disc includes a plurality of outlet supports, the inside corner of outlet support is fixedly installed with inclined plate, and the inner wall side of outlet support is movably installed with guide plate, the tail end of guide plate is provided with arc plate, the inclined plate, guide plate and arc plate between adjacent two groups of outlet supports form screening ramp, there is screen gap between guide plate and arc plate, the inside of outlet support is provided with adjusting structure. Material is rolled through screening ramp, fine material falls to discharge cone through the gap screen gap between guide plate and arc plate, falls into center sieve plate through the leakage gap of discharge cone, and the coarse material not through screen gap flows to the other side of partition compartment disc along the inclined surface of discharge cone, and can be screened by changing the size of screen gap between guide plate and arc plate.

The utility model relates to the technical field of wheat seed screening, in particular to wheat seed processing and screening equipment which comprises a screening box, a first screen, a second screen, a speed reduction anti-blocking device and a moving device, a feeding port is formed in the top end of the screening box, and a feeding hopper is installed at the top end of the feeding port. The first screen is obliquely installed on the upper portion in the screening box, the high end of the first screen penetrates through the side wall of the screening box and is provided with a first vibration motor, a driving device drives a rotating shaft and an auxiliary shaft to rotate, and along with rotation of the rotating shaft and the auxiliary shaft, multiple sets of speed reduction rods fixed to the rotating shaft and the auxiliary shaft also start to rotate; the speed reduction rod and the soft head on the speed reduction rod make contact with materials, it is ensured that the materials are evenly distributed on the second screen by continuously and slowly pushing the materials to move forwards, falling wheat can pass through the second screen, the screening efficiency is ensured, and the speed reduction rod can be prevented from making direct contact with the second screen through the design of the soft head.

The utility model belongs to the technical field of screening for pelletizers, and particularly relates to a screening device for a pelletizer, which comprises a base, a screening cylinder is arranged above the base, screening holes with different hole diameters are sectionally arranged on the screening cylinder, a first mounting seat and a second mounting seat are respectively and fixedly connected onto the base, and the first mounting seat and the second mounting seat are fixedly connected onto the base. Two rotating rods are rotationally mounted on the first mounting seat and the second mounting seat in a matched manner; in the screening process of the granulated particles, adhesion objects and blocking objects on the surface of the screening barrel can be removed through jetting of high-temperature gas of the screening barrel, screening holes are prevented from being blocked, the moisture content of wet materials can be reduced through jetting of the high-temperature gas, the influence of the wet materials on screening is reduced, and the moisture content of the wet materials is reduced through jetting of the high-temperature gas. And viscous agglomeration among the particles can be broken through spraying of the high-temperature gas, so that the particles are more easily dispersed and pass through the screen holes, and the screening effect can be remarkably improved through the device.

The utility model relates to the technical field of material screening, in particular to a lead slag screening device which comprises a main box body, and a sweeping assembly is arranged in the main box body. According to the lead slag screening device, moving gears on the two sides of a moving plate are meshed with two rotating half gears, the two rotating half gears are the same in size and speed, so that when one rotating half gear is meshed with the moving gear, the moving plate moves upwards in the longitudinal direction, and meanwhile when the other rotating half gear completes meshing, the moving plate moves upwards in the longitudinal direction; the other rotating half gear with the same speed and size can continue to be meshed with the moving gear on the other side of the moving plate, on the contrary, the moving direction of the moving plate is opposite to the moving direction of the moving plate, lead powder remaining on the inner wall of the box body can be removed through a scraping plate fixedly connected to the moving plate, and reciprocating motion can be achieved. And the same cleaning assemblies are arranged on the two sides of the partition plate, so that the scraping plates face upwards and downwards at the same time by setting the same speed for different time, and lead powder residues in the box body can be better removed.

The utility model relates to the technical field of material screening, in particular to a CBN composite material screening device which comprises a frame, a cavity is formed in the inner surface of the frame, spring sleeves are fixedly installed at the upper end and the lower end of the inner wall, away from a screening box, of the cavity, protection plates are fixedly installed on the inner walls, away from the screening box, of the spring sleeves, and the protection plates are located in the spring sleeves. Second springs are fixedly mounted on the side surfaces of the protection plates, mounting plates are connected to the ends, close to the screening box, of the second springs, telescopic columns are fixedly mounted on the side surfaces, close to the screening box, of the mounting plates, movable plates are fixedly mounted on the side surfaces, away from the protection plates, of the telescopic columns, and limiting columns are fixedly mounted on the side walls, close to the screening box, of the movable plates. The screening device has the beneficial effects that by arranging the limiting mechanism, the aperture of the screening plate can be rapidly adjusted according to actual needs, the screening efficiency is improved, the operation cost is reduced, and the production flexibility and adaptability are further improved.

The invention discloses multi-stage screening equipment for cut steel wire shots, which belongs to the technical field of steel shot screening and comprises three screening equipment for screening steel shots and a main support. The main support is provided with a circulation mechanism used for rolling and cleaning screening steel wires used for screening steel shots and a shot making mechanism used for making steel bars into the steel shots. The screening steel wire is designed to be a closed-loop circulation system and is driven by the winding motor to be periodically wound and unwound between the two steel wire winding wheels in a reversing mode, the screening steel wire is immersed into the cleaning pool twice before and after flowing through the screening area and is subjected to ultrasonic cleaning, shot chippings, dust and oil stains attached to the steel wire can be efficiently removed, and the screening efficiency is improved. Real-time self-cleaning of a screening medium is achieved, the problem that a screen is blocked is fundamentally avoided, it is ensured that the screening process is conducted in the high-flux and high-precision state all the time, and meanwhile finished steel shots with different particle sizes are prevented from being polluted by impurities.

The present application relates to MOFs film preparation raw material screening technical field, disclose a kind of MOFs film raw material particle screening machine, including the sorting cavity for screening operation and the screening screen uniformly distributed in it, screening screen reciprocatingly moves left and right in horizontal plane;Further comprising: air duct, it is installed through the back of the sorting cavity, air duct is uniformly distributed and located above screening screen and fixed with pneumatic dredging pipe fitting, it is used for the pneumatic dredging of screen hole on screening screen;Connecting piece, located the outside of the back of the sorting cavity and with the air duct in the same horizontal plane is fixed, air duct is axially telescopic movable, and the end of air duct is connected with threaded hose in through mode, threaded hose is used for airflow delivery.Can improve the screening efficiency of particulate matter raw material, while can avoid because of the particulate raw material screening when gathering and the particulate matter and screen hole jam under the damping effect, leading to screen hole blockage, improve the sustained efficiency of particle screening.

The invention relates to the technical field of screening, discloses fluorite concentrate screening equipment and a fluorite concentrate screening method, and solves the problems that a screening net is inconvenient to disassemble and assemble repeatedly, and the screening efficiency is influenced. The two sides of the screening box body are fixedly connected with a first discharging hopper and a second discharging hopper which are matched with the material distributing plate correspondingly, and the screening box body is provided with an angle adjusting assembly matched with the material distributing plate. Two side plates are arranged above the flow dividing plate, a plurality of screening nets which are sequentially arranged are obliquely arranged between the two side plates, the screening nets are fixedly sleeved with supporting rings, and the side plates are provided with overturning cleaning structures matched with the supporting rings; according to the equipment, the screening net does not need to be repeatedly disassembled and assembled, cleaning of the screening net can be completed in the screening box body, and convenience is improved.

The utility model relates to the technical field of coating screening, and discloses a hot melt type reflective pavement marking coating production screening device which comprises a screening box and a circulating material guiding mechanism installed on one side of the screening box and used for feeding large-particle raw materials again, and a crushing mechanism used for crushing the large-particle raw materials is installed on the upper surface of the screening box in a penetrating mode. A screening drum used for screening raw materials is arranged in an inner cavity of the screening box. Through cooperation of the circulating material guiding mechanism and the crushing mechanism, the circulating material guiding mechanism conveys large-particle raw materials which do not pass screening to the crushing mechanism, so that recycling of the raw materials is achieved, waste is reduced, the large-particle raw materials are crushed through the two sets of crushing tooth rollers, and it is ensured that the granularity of the raw materials is uniform; and other equipment is not needed for secondary processing of large-particle raw materials, so that the screening efficiency is improved, the equipment cost is saved, and the production efficiency and quality of the hot-melt reflective pavement marking coating are improved.