41results about How to "Increase cleaning intensity" patented technology

The invention discloses a textile thread lubrication device. The textile thread lubrication device comprises a base; a box body is fixedly connected to the upper end of the base; a heating box is fixedly connected to the upper end of the box body; a first circular ring is fixedly connected to the lower end of the heating box; a cylinder is slidably connected to the inner wall of the first circularring; a plurality of springs are symmetrically and fixedly connected to the inner wall of the cylinder; one end, away from the inner wall of the cylinder, of the plurality of springs is fixedly connected with an arc-shaped plate in a hollow structure; and the first circular ring is provided with an oil guiding device for inputting oil in the arc-shaped plate. According to the textile thread lubrication device provided by the invention, the cylinder drives the arc-shaped plate to rotate, so that the oil in the heating box flows into the arc-shaped plate through the oil guiding device, and flows out from an oil guiding hole, thus comprehensive oil infiltration is carried out on textile threads, the oil infiltration efficiency on the textile threads with different thicknesses is accelerated,and the oil can be heated through a heating plate, so that the situation that the circulation of the oil is affected due to the solidification of the oil when the weather is cold, so that the oil infiltration efficiency of the textile threads is affected is avoided.

The invention relates to the technical field of etching, and discloses circuit board production equipment based on a vacuum etching technology. The equipment comprises a base, two clamping plates, anetching cylinder, a rotating motor, a turntable, a vacuum device and an etching device, and is characterized in that the bottom surface of the etching cylinder is in a hollow state, the clamping plates are inverted L-shaped bodies, and the two clamping plates are opposite to each other left and right; the surfaces, deviating from each other, of the two clamping plates are curved and are matched with the inner wall of the etching cylinder, the vacuum device and the etching device are both arranged on the etching cylinder, and through arrangement of the vacuum device, a vacuum effect is formed in the whole etching cylinder by utilizing a continuous air exhaust effect, so that dust and the like in the base are powerfully extracted, and the etching efficiency is improved. Therefore, dust in the base or on the circuit board before etching and smoke and impurities generated by chemical reaction in the etching process are removed, the cleanliness of the circuit board after etching is improved, the problem that the quality of the circuit board is reduced due to the fact that the smoke and the impurities such as the dust participate in the etching process is solved, and compared with an existing cleaning mechanism on an etching machine, the cleaning range is more comprehensive, and the cleaning force is stronger.

The invention provides a water conservancy pipeline desilting device, and relates to the technical field of desilting equipment, the water conservancy pipeline desilting device comprises a rack and a conveying structure, the upper end of the rack is provided with a machine body, the surface of the rack is fixedly connected with a partition plate, the upper end of the rack is provided with a pipe winding device, and the arc surface of the pipe winding device is wound with a water pipe; one end of the water pipe is installed on the machine body, a spray head is installed at the other end of the water pipe, a conveying structure is arranged on the surface of the machine frame and comprises two fixing plates, the two fixing plates are fixedly connected to the surface of the machine frame, and the ends, close to each other, of the two fixing plates are fixedly connected with a square frame. A rack is slidably connected to the inner wall of the square frame, and a motor is fixedly connected to the side, close to the rack, of the square frame. According to the water conservancy pipeline dredging device, the problem that when a water conservancy pipeline below a small wellhead is subjected to dredging treatment, a water pipe and a spray head are inconvenient to quickly move to the position of the pipeline, and inconvenience is brought to operators is solved.

The invention discloses a ship bottom organism cleaning device, and belongs to the technical field of ships, the ship bottom organism cleaning device comprises a base, connecting plates are fixedly connected to two ends of one side of the base, a mounting plate is arranged on one side of the base, a knocking mechanism is fixedly connected between the connecting plates, and a cam is arranged on one side of the knocking mechanism. According to the cleaning device, the first electric push rod extends to drive a rod body on one side of the transmission rod to push the base to relatively deflect through the top transmission roller, so that the relative deflection angle can be adjusted, and the control capacity of the relative angle of traditional cleaning is effectively improved; the second electric push rod can be shortened to pull the fixing plate to drive the limiting plate to be attached to limiting teeth on the outer wall of the limiting roller downwards through the first sliding rod for limiting, control over the relative deviation angle of the base is achieved, cleaning and attaching fit at the same angle in a part of areas are met, and the attaching adaptability to the curvature of the outer vertical face of the ship body is effectively achieved.

The invention relates to the technical field of electroplating, and discloses an electroplating device for circuit board production, which comprises an electroplating bath, a transmission mechanism, aconveying line, telescopic equipment and a clamping mechanism, the transmission mechanism is arranged on the electroplating bath, the conveying line is arranged above the transmission mechanism, thetelescopic equipment is arranged on the conveying line, and the clamping mechanism is arranged on a transmission shaft of the telescopic equipment. The clamping mechanism comprises a top plate, two side plates, a rotating shaft and a clamping ring, the top surface of the top plate is fixedly connected with a transmission shaft of the telescopic equipment, sliding grooves are formed in the bottom surface of the top plate, the two side plates are connected with the sliding grooves in a sleeving mode, through grooves A and movable grooves are formed in the corresponding surfaces of the two side plates, and holes are formed in the back surfaces of the movable grooves; the rotating shaft is sleeved in the holes; the front face end of the rotating shaft is fixedly connected with the clamping ring; by arranging the clamping mechanism, the clamping process before electroplating of the circuit board can be carried out from a low position, and the problem that a clamp of an existing electroplating device is high in installation position, so that certain requirements for the height of staff must be met is solved.

The invention provides an efficient conductive slurry production device, which comprises a stirring device, a case is fixedly connected to the outer wall of the top of the stirring device, and a rotating motor is fixedly mounted on the inner wall of the top of the case. The production device is equipped with a telescopic air cylinder, a sleeve, a telescopic rod, a seal ring, a rotating motor, a connecting shaft, a rotating gear, a scraping plate and the like, in order to conveniently clean the inner wall of the stirring device, an output shaft of the telescopic air cylinder drives a stirring rod to move towards the inner wall of the stirring device, then an output shaft of the rotating motor drives the rotating gear to rotate, the rotating gear moves the scraping plate out of the stirring rod, and the output shaft of the rotating motor drives the stirring rod to rotate, the inner wall of the stirring device is cleaned, then a proper amount of water and a cleaning agent are poured for stirring and scouring, cleaning of the inner wall can be completed, the cleaning efficiency is high, the cleaning strength is large, and the sleeve and the telescopic rod are used for supporting and fixing the stirring rod and carrying out force dividing on an output shaft of the telescopic air cylinder.

The invention discloses an adjustable automatic cleaning device for accumulated material at an edge of a side plate in the technical field of wood board processing. The adjustable automatic cleaning device comprises a mounting plate, an L-shaped push plate is slidably connected to the top end of the mounting plate, an air cylinder is fixedly connected to the left end of the L-shaped push plate, the air cylinder is fixedly connected to the top end of the mounting plate, a positioning mechanism is arranged at the top end of the L-shaped push plate, and a shearing mechanism and a scraping mechanism are arranged at the top end of the mounting plate. By arranging the shearing mechanism, wood difficult to remove on a side edge plate is sheared and cut up, the adhesive force between the wood and the side edge plate is reduced, then residual wood at the side edge plate is scraped away through the scraping mechanism, the cleaning strength of the side edge plate is improved, and the attractiveness of a wood plate is improved; and meanwhile, the device does not need to be manually cleaned, so that the labor intensity is reduced, and the working efficiency is improved.

The invention relates to the technical field of electroplating, and discloses an electroplating device for circuit board production, including an electroplating tank, a transmission mechanism, a conveying line, telescopic equipment and a clamping mechanism, the transmission mechanism is arranged on the electroplating tank, and the conveying line is arranged on the transmission mechanism Above, telescopic equipment is set on the conveying line. The clamping mechanism is set on the transmission shaft of the telescopic equipment. The clamping mechanism includes a top plate, a side plate, a rotating shaft and a clamp ring. The top surface of the top plate is fixedly connected with the transmission shaft of the telescopic equipment. The top plate The bottom surface is provided with a chute, the number of side plates is two and both of them are socketed with the chute, and the corresponding surfaces of the two side plates are provided with a through groove A and a movable groove, and a hole is opened on the back of the movable groove and the rotating shaft is socketed in the hole , the front end of the rotating shaft is fixedly connected with a clamp ring. Through the setting of the clamping mechanism, the clamping process of the circuit board before electroplating can be carried out from a low position, which solves the problem that the height of the staff must be affected by the high installation position of the fixture in the existing electroplating device. Certainly asked questions.

The invention discloses a pig intestine cleaning device, and relates to the field of food processing. The pig intestine cleaning device comprises a base, wherein an equipment box is fixedly mounted at the top of the base; control equipment is arranged in the equipment box; a cleaning shaft is arranged at the left end of the equipment box; the cleaning shaft comprises a segmented pipe; and the cleaning shaft is formed by combining the segmented pipe in a circular arc-shaped bending manner. According to the pig intestine cleaning device disclosed by the invention, the rotating manner of the cleaning shaft is special, so that when the segmented pipe cleans the inner wall of a pig intestine, an adjusting plate on the outer wall of the segmented pipe is influenced by rotating force and slapping force of the inner wall of the pig intestine, and adaptive inclination angle adjustment is performed through a movable groove and a movable ball; and besides, the adjusting plate is influenced by centrifugal force, and the adjusting plate can generate local rotation on the movable ball, so that a cleaning scraping cone can perform nonlinear scratching treatment on dirt on the inner wall of the pig intestine, and the dirt on the inner wall of the pig intestine is easy to separate.

The invention discloses a flat comfortable fabric and a bleaching and dyeing process thereof. The fabric comprises a fabric body, wherein a matrix is arranged in and fixedly connected with of the fabric body; the top end of the matrix is fixedly connected with a breathable layer; water absorption balls fill in the breathable layer at equal intervals in a staggered manner; a connecting wire is fixedly arranged between and connected with every two water absorption balls; air vents are formed between the connecting wires; the top end of the breathable layer is fixedly connected with an outer layer; and the outer layer comprises viscose fibers and chemical fibers. The flat comfortable fabric is scientific and reasonable in structure and safe and convenient to use; the water absorption performance of the fabric is improved through pure cotton and terylene in the water absorption balls; multiple water absorption balls are fixedly connected and supported through the connecting lines, so the water absorption balls are evenly distributed in the fabric, and thus, the overall water absorption effect of the fabric is improved; in addition, the connecting lines are formed by weaving the polyurethane elastic fibers, so the elasticity and softness of the fabric are guaranteed; and meanwhile, the ventilation of the fabric is facilitated through the air vents.

The invention relates to the technical field of injection molds, and discloses a light-weight automobile door panel injection mold. Comprising a rack and a lower mold, an automobile door panel injection mold cavity is fixedly formed in the lower mold, a set of elastic buffering pieces are installed between the lower mold box and the rack, two hinged shafts are installed on the lower mold and hinged to the lower mold box, a driven bevel gear is installed on one hinged shaft, and a driven bevel gear is installed on the other hinged shaft and hinged to the lower mold box. A torsion spring is fixedly arranged at the rotating connection position of the other hinged shaft and the lower die box, a limiting frame and a lifting component are installed on the side face of the lower die box, the lower die box is installed on the rack, and the lifting component is connected with an upper rotating frame. During working, vibration injection molding of the automobile door panel, automatic multi-item detection of the injection-molded door panel, automatic discharging of the molded door panel, automatic vibration cleaning and air cleaning of an injection mold cavity of the automobile door panel after discharging and automatic uniform spraying of a release agent before injection molding can be integrally achieved.

The invention relates to the technical field of waste gas treatment equipment, in particular to industrial waste gas treatment equipment which comprises a spraying tank, a spraying device is arranged at the top of the spraying tank, a slag discharging opening is formed in the bottom of the spraying tank, a spirally upward grating plate is arranged in the spraying tank, a gas inlet pipe is arranged on one side of the lower end of the spraying tank, and a gas outlet pipe is arranged on the other side of the spraying tank. A through hole is formed in the bottom of the spraying tank, a suction fan is installed at the through hole and connected with a medicament tank through an air guide pipe, a net cover is installed at the bottom end of the interior of the medicament tank, the end, away from the suction fan, of the air guide pipe communicates with the net cover, and a rotating motor is arranged at the top of the medicament tank; and a rotating rod connected with the power output end of the rotating motor is installed at the position, located above the mesh enclosure, in the medicament tank, a plurality of sets of cutting knives are arranged on the rotating rod in an array mode, and an air outlet pipe is arranged at the top of the medicament tank.

The invention discloses an energy-saving and eco-friendly sweeper capable of conveniently collecting dust. The sweeper comprises a box body, a backboard, a seat, a cabinet, a support rod, a steering wheel, a pedal, a collecting box, a back wheel, a front wheel, connecting rods and sweeping devices. Two ends of the top of the pedal are equipped with the box body and the cabinet. One side at the topof the box body is equipped with the backboard. One side of the backboard and one side close to the cabinet are provided with the seat. In addition, the bottom of the seat is fixed onto the other side at the top of the box body. The support rod is arranged at the top of the cabinet. The top of the support rod is equipped with the steering wheel. The connecting rods are arranged at two ends at oneside at the bottom of the pedal and located below the cabinet. The bottoms of the connecting rods are equipped with the sweeping devices. The front wheel is arranged in the middle on one side at thebottom of the pedal and located between the sweeping devices on two sides. The energy-saving and eco-friendly sweeper capable of conveniently collecting dust has the following beneficial effects: cleaning intensity of the sweeping machine is increased such that cleaning operation is performed more thoroughly.

The utility model discloses a security and protection monitoring device based on face recognition, and relates to the security and protection monitoring device technology field, the security and protection monitoring device comprises a recognition panel, a recognition lens and a sun shield, the outer wall of the sun shield is provided with a rain shield, the inner wall of a mounting groove is provided with a first power-on module, the inner wall of the mounting groove is provided with an electromagnet, and the electromagnet is provided with a second power-on module. A light supplementing lamp is installed on the outer wall of the first power-on module, a second power-on module is installed on the outer wall of the light supplementing lamp, a magnet body is installed on the outer wall of the light supplementing lamp, and a light gathering plate is installed on the outer wall of the recognition panel. The auxiliary mechanism is installed, the sun shield is used for shielding outside sunlight, the rain shield is used for protecting the recognition lens, and the light supplement lamp is installed in the installation groove, so that when outside light is dark, the light supplement lamp is turned on to light the face of a person, the recognition lens can clearly recognize the face of the person, and the recognition effect is good. And the identification accuracy of the identification lens is prevented from being influenced by the external environment.

A cooling device with an annular waterway based on 3D printing technology, including a conformal waterway. There are parking cavities at both ends of the conformal waterway. The outer end of the parking cavity is connected to a reversing water pump. There is a cleaning device for the inner wall of the waterway. The cleaning device for the inner wall of the waterway includes an installation box. The outside of the installation box is connected to the first shaft. There is a first gear outside the first shaft. A baffle is arranged on the wall, and a guide wheel assembly is arranged on the outside of the baffle. In the present invention, there are parking cavities at both ends of the conformal waterway, and the water flow can pass through the gap between the waterway inner wall cleaning device and the parking cavity to form a water cycle to take away the heat in the mold, and the water flow can push the waterway inner wall cleaning device along the Waterway walking can also drive the blades to scrape off the dirt on the inner wall of the waterway through the water flow, and the cooling effect of the conformal waterway can be further improved by reversing the direction of the water pump.

A dust-proof asynchronous motor for a fan belongs to the technical field of asynchronous motors; it includes a motor box, the motor box is an internal hollow structure, fan blades are arranged under the motor box, and an asynchronous motor for driving the fan blades to rotate is arranged inside the motor box. Both sides of the chassis are provided with air intake holes connected to the motor box. In the present invention, a lower side plate, a magnetic sheet 1, an air outlet, an ash discharge device, a guide plate, a magnetic sheet 2, a guide rod and a dredging needle plate are provided at the same time. When the magnetic sheet one rotates with the fan blades and keeps getting closer to and away from the upper side plate, the repulsive force of the magnetic sheet pair and the second magnetic sheet alternates with the downward gravitational force between the second magnetic sheet, the guide rod and the dredging needle plate. At this time, the guide plate Continuously moving up and down inside the guide cavity, the guide plate continuously moves up and down inside the guide cavity, which has the effect similar to that of an exhaust fan. Heat dissipation has a promoting effect.

The invention discloses a soup kettle cleaning device, and relates to the technical field of soup kettles. The soup kettle cleaning device comprises a placing block, wherein the placing block is in a round block shape, a through pipe is fixedly installed at the bottom of the placing block, the through pipe is in a round pipe shape, cleaning holes are formed in the side wall of the through pipe in an annular gap mode, a water limiting plate is arranged in the through pipe, and a bottom cleaning box is fixed at the bottom of the through pipe. According to the soup pot cleaning device, through aiming type impact of water flow, a dislocation plate on the inner wall of a cleaning side rubber plate is affected by impact and rotates through a stress arc plate and a bearing, and meanwhile, the cleaning side rubber plate is also limited by flowing and impact of the water flow inside and outside; and when the cleaning side rubber plate rotates through the dislocation plate, the local position of the cleaning side rubber plate can be wrinkled, so the cleaning side rubber plate can effectively rub and clean the inner wall of the soup pot when cleaning the inner wall of the soup pot, and the effect of high-strength cleaning of the inner wall of the soup pot is achieved.

The invention discloses a cleaning machine for cleaning engraving waste. The cleaning machine comprises a machine body, wherein a brushing head base is rotatably arranged on the left side surface of aswinging rod. When the cleaning machine is used for cleaning, a first motor is started to drive a driving shaft, a first gear, a fan blade gear base and a fan blade gear to rotate; the flexibility ofthe brushing head rotation is improved through the spherical rotation, so that the cleaning at various angles during engraving can be met, and the all-round cleaning on complex engraving is realized;a brushing head which can slide left and right is designed, so that the cleaning of engraved holes can be realized, the deep cleaning is realized, and the cleaning intensity is high; and the fan blade is designed, so that waste cleared out can be blown away through the rotation of the fan blade, and the condition that blowing the waste in other ways causes the damage of engraving finished products is avoided.

The invention discloses a drum-type shot blasting machine. The drum-type shot blasting machine comprises a shot blasting chamber, a shot blasting device, a spiral conveyor, a lifter, a separator, a shot supply device, a dust removal system and an electric control system. The shot blasting chamber comprises a chamber body; a long-strip-shaped opening is formed in the front side wall of the chamber body; the shot blasting device is fixedly installed at the upper inclined corner of the rear side of the chamber body; a drum, a drum support, a rotary speed reducer and a drum swing mechanism are installed in the chamber body; the drum support is rotationally installed in the chamber body; the drum is installed in the drum support; the rotary speed reducer is installed at the bottom of the drum support and connected with the drum so as to drive the drum to rotate; and the drum swing mechanism controls the drum to swing by different amplitudes. By the adoption of the drum-type shot blasting machine, the shot blasting strength can be effectively improved, the cleaning time of one shot blasting process is greatly shortened, the cleaning effect is achieved, and cost is reduced; and meanwhile, the drum-type shot blasting machine is simple in structure, batch feeding tasks can be completed, the damage to operators is reduced, the production efficiency is improved, and the requirement for semi-automatic production and machining is met.

The invention relates to a special brushless motor for a floor sweeper main brush. The special brushless motor comprises a shell, magnetic steel, a coil, a stator fixedly connected with the shell, endcovers arranged at the two ends of the shell, and a rotor arranged inside the stator, wherein the two ends of the rotor are arranged on the end covers through bearings; the magnetic steel is arrangedon the rotor; and the coil is arranged on the stator. The special brushless motor for the floor sweeper main brush is relatively small in volume, convenient for coil winding, relatively large in torque and relatively high in magnetic force. Moreover, a floor sweeper comprises a driving vehicle, two groups of floor sweeping devices are arranged on the vehicle body of the driving vehicle; each group of floor sweeping device comprises a lifting device, a mounting rack connected with the output end of the lifting device, a roller arranged on the mounting rack and the special brushless motor for the floor sweeper main brush, and the shell of the special brushless motor is fixedly arranged on the mounting rack; a collection box is further arranged between the two rollers; an exhaust fan is further arranged on the vehicle body; and the input end of the exhaust fan communicates with the collection box. The floor sweeper is good in sweeping effect.

The invention relates to the field of solar panel surface cleaning, in particular to an air blowing type solar panel surface foreign matter removing device. The air blowing type solar panel surface foreign matter removing device comprises a photovoltaic panel, side frames and an integration box, the side frames are symmetrically fixed to the two sides of the photovoltaic panel, the integration box is arranged at the top of the photovoltaic panel, the two ends of the integration box are located on the surfaces of the side frames, an air guide pipe is arranged at the position, located on the surface of the photovoltaic panel, of the side edge of the integration box, exhaust holes are evenly formed in the surfaces of the air guide pipe, a draught fan is installed on the surface of the integration box, the exhaust end of the draught fan is connected with the air guide pipe, a driving device is installed in the integration box, a linkage device is installed in the integration box, and the driving device is connected with the linkage device. The integration box is driven by the driving device and the linkage device, so that the air guide pipe can reciprocate on the surface of the photovoltaic panel, airflow is driven by the draught fan, the airflow is sprayed out through the air guide pipe to clean dust on the surface of the photovoltaic panel, the surface of the photovoltaic panel is clean, and the working efficiency is high.

The invention relates to the technical field of kitchen waste treatment, in particular to a kitchen waste biodegradation device which comprises a shell and a conveying belt arranged in the shell, a plurality of partition plates are installed on the conveying belt at equal intervals, and the partition plates are attached to the inner wall of the shell to divide the interior of the shell into a plurality of material cavities. A feeding hole, a blanking hole and a movable filter plate are arranged on a moving path of the material cavity of the shell; the movable filter plate reciprocates in the horizontal direction perpendicular to the moving path of the material cavity; the shell is provided with an extrusion unit used for pressing materials passing through a material cavity above the movable filter plate, a filter hole cleaning unit used for cleaning filter holes of the movable filter plate moving to the outside of the material cavity, and a liquid collecting box used for collecting liquid discharged through the filter holes. According to the technical scheme, the filter holes located below the material cavity are changed through movement of the movable filter plate, the filter holes separated from the lower portion of the material cavity are cleaned by the filter hole cleaning unit installed on the shell, and the filter holes are prevented from being blocked by residues in materials.

The utility model relates to the technical field of machine tools, and discloses a machine tool guide rail chipping cleaning device which comprises a guide rail seat, and a transmission mechanism is arranged on the inner side of the guide rail seat. In the moving process of the connecting frame, the draught fan is started, so that in the running process of the guide rail, chippings on the inner side of the cavity are collected through the feeding pipe on the outer side of the T-shaped collecting pipe, and at the moment, the chippings and dust on the inner side of the guide rail groove are discharged to the inner side of the cavity through the discharging holes; according to the scrap collecting device, the scrap collecting mechanism is arranged on the inner side of the guide rail groove, the situation that scraps are accumulated on the inner side of the guide rail groove and influence normal use of the guide rail is avoided, the connecting frame drives the cleaning mechanism to move together, the scrap cleaning strength of the guide rail groove and the inner side of the cavity is improved, and then the scraps are discharged to the inner side of the collecting box under the action of the collecting arm; and meanwhile, under the action of the dustproof net, the chippings or dust is prevented from being discharged together during ventilation, and therefore the working environment quality is improved.

The invention relates to the technical field of valves, and discloses a valve with self-cleaning and anti-blocking functions, which comprises a valve pipe. Connecting pipes are fixedly mounted at the left end and the right end of the valve pipe, a control pipe is fixedly mounted at the top of the valve pipe, a control valve is arranged at the top of the control pipe, and a cleaning box is arranged on the connecting pipes. A telescopic vibration device is arranged at the end, close to the valve pipe, of the inner side of the cleaning box, and a telescopic vibration pipe is fixedly installed at the output end of the telescopic vibration device. According to the valve with the self-cleaning and anti-blocking functions,the fixed shaft is vibrated and impacted intermittently by the telescopic vibration pipe, so that the fixed shaft drives the adjusting rubber plate to vibrate, the adjusting rubber plate drives the breathing bag plate to perform adaptive deformation through the adjusting bag, the deformed breathing bag plate intermittently generates suction through the breathing holes in the breathing bag plate, loose and easily-gathered blockages such as sludge in the connecting pipe can be effectively dispersed, and therefore the cleaning effect on the valve is improved.

The invention relates to the technical field of battery positive electrode material preparation, and discloses a battery positive electrode material preparation method and preparation equipment thereof.The battery positive electrode material preparation equipment comprises a feeding opening formed in the top of a machine shell, material collecting boxes are arranged at the bottom end of the machine shell, and the material collecting boxes are arranged on the two sides of the machine shell; screening wheels used for removing iron from materials are rotationally installed in the machine shell, a driving motor is installed on the outer side of the machine shell and drives the screening wheels to rotate, the two screening wheels are symmetrically arranged and are in transmission connection through a gear, and a plurality of material containing grooves are formed in the curved surface of each screening wheel in a circumferential array mode; an electromagnetic plate used for attracting a magnet is rotationally installed in each containing groove, and a limiting column used for electrifying and limiting the electromagnetic plates is installed on the screening wheel. When the limiting column is attached to the electromagnetic plate in an inserted mode, the electromagnetic plate is powered on to adsorb iron, when the limiting column is separated from the electromagnetic plate, the electromagnetic plate loses magnetic attraction, and according to the scheme, equipment does not need to be stopped for cleaning, and the iron removal efficiency is improved.