115results about How to "Guaranteed screening efficiency" patented technology

The invention discloses a sieving and drying device for metal powder, include a hot air fan, sieve powder box, distribution box and dispersing box, An upper end of that dispersion box is provide witha motor 2 and a feeding port, A taper stirring drum is arrange in that dispersion box, the main shaft of the motor 2 is provided with a stirring shaft, the lower end of the conical stirring drum is provided with a blanking pipe, A low end of that blanking pipe is communicate with the distribution box, A control valve is arranged on the feeding pipe, A run wheel is arranged in the material distribution box, two grooves are symmetrically arranged on the runner, the upper end side of the sieve powder box is provided with a mounting seat, A motor 1 is arranged on the mounting seat, the main shaftof the motor is provided with an eccentric wheel, A screen net frame is arranged in the screen powder box, a screen net is arranged on the inner side of the screen net frame, a bracket is arranged onthe bottom of the screen powder box, and a recovery box is arranged on the upper end of the bracket. The device realizes the quantitative screening of the powder, ensures the screening effect and efficiency of the screen net, and the treated powder contains less impurities and the water content of the powder is low.

The invention discloses a split type rotary drum pulping device comprising a pulping machine and a screening machine. The pulping machine is internally provided with a rotary drum; the inner wall of the rotary drum is connected with a plurality of scratch plates; the screening machine is internally provided with a screen drum; the wall of the screening drum is provided with a plurality of screen holes; a bottom plane of the pulping machine is higher than a bottom plane of the screening machine; a pulp passing drum is arranged between the pulping machine and the screening machine in an inclineway and is fixedly arranged on a base; a left port of the pulp passing drum is arranged on a pulp outlet of the rotary drum and communicated corresponding to the pulp outlet port; a right port of thepulp passing drum is arranged in a pulp inlet of the screen drum and communicated corresponding to the pulp inlet; and the rotary drum is internally connected with a pulp feeding hopper in a shape ofa spoon and the pulp feeding hopper corresponds to the pulp outlet port. The invention can solve the problems that the prior art cannot simultaneously meet the requirements of a pulping process and ascreening process, is easy to cause low pulping quality and screening efficiency and brings great difficulty to processing and manufacturing, hoisting transportation, installation and debugging of theequipment.

The invention discloses a corn kernel threshing and separating device which comprises a threshing roller with threshing teeth. Each threshing tooth comprises a tooth rod with a spherical top end, a threshing concave plate is arranged below the threshing roller and comprises a concave plate body, the concave plate body comprises two side plates, supporting plates are arranged between the two side plates, a longitudinal separation plate is arranged between the two supporting plates, separation bars are arranged on the longitudinal separation plate, and the separation bars and the longitudinal separation plate are flush with the side plates. A separation roller is arranged on one side of the flowing direction of crops, and separation teeth and separation plates are arranged on the separation roller in a staggered mode. A separation concave plate communicated with the threshing concave plate is arranged below the separation plate. Through rubbing between the threshing teeth and the threshing concave plate, threshing is achieved, power consumption is little, and cost is low. Through the threshing concave plate, while passing ability and screening efficiency are guaranteed, strength and use reliability are improved, and the crushing rate is lowered; meanwhile, through replacement of the corn kernel threshing and separating device, the effect of harvesting corn crops at the same time is achieved, and the use rate of a rice and wheat harvester is improved.

The invention relates to a system for breeding hermetia illucens for treating livestock and poultry manure and application thereof. The system for breeding the hermetia illucens for treating the livestock and poultry manure comprises an adult breeding room, a larva incubation room, a breeding pond and a hermetia illucens and manure separator. The application comprises the following treatment steps of breeding hermetia illucens adults in the adult breeding room to obtain eggs, hatching the eggs and breeding larvae in the larva incubation room, breeding the hermetia illucens in the breeding pond to treat the livestock and poultry manure, carrying out hermetia illucens and manure separation by using the hermetia illucens and manure separator, respectively utilizing hermetia illucens bodies and hermetia illucens manure, drying and grinding the hermetia illucens bodies to obtain protein feed, or directly feeding fish, shrimps, livestock and poultry with the hermetia illucens bodies, and using the hermetia illucens manure as an organic fertilizer after being aired. According to the method, a closed-loop breeding process from the hermetia illucens eggs to the hermetia illucens adults is formed, the larvae do not need to be purchased from the outside, the organic fertilizer and the hermetia illucens body protein feed can be continuously obtained, the method is a harmless and resource utilization method for the livestock and poultry manure, and good ecological benefits, social benefits and economic benefits are achieved.

The invention discloses an efficient sand screening machine used for buildings. The efficient sand screening machine sequentially comprises a feeding mechanism, a sand screening groove, a sand hopperand a tilting cart according to the screening process of sand. The feeding mechanism is located on the upstream portion of the sand screening groove. The sand hopper is located below the sand screening groove and further communicates with the sand screening groove. The tilting cart is located below the sand hopper. The feeding mechanism comprises a supporting plate, a sand conveying groove, a first screw rod and a feeding drive motor used for driving the sand conveying groove to move in the length direction of the supporting plate. The sand conveying groove is located in the upper side of thesupporting plate. The side wall, close to the sand screening groove, of the side walls of the sand conveying groove is opened. The supporting plate is obliquely arranged. The lower end of the supporting plate is fixed to the ground, and the upper end of the supporting plate is located above the sand screening groove. According to the efficient sand screening machine used for the buildings, the labor intensity is low, the screening efficiency of the sand is high, the sand can be prevented from blocking screen holes, impurities like stone blocked into the screen holes can be removed, the particle size of the screened sand can be adjusted at any time, and the screening efficiency and screening quality are guaranteed.

The invention discloses anti-blocking food raw material refining equipment. The anti-blocking food raw material refining equipment comprises a processing box, a crushing cylinder is nested in the processing box, a rotating disc is nested in the lower part of the crushing cylinder, and centrifugal material throwing plates which are distributed circumferentially are fixedly connected to the rotatingdisc; the inner wall of the crushing cylinder is fixedly connected with crushing cutters distributed circumferentially, and the lower portion of the crushing cylinder is provided with a grating net in a nested mode. By arranging the crushing cylinder and the rotating disc which rotate reversely, the crushing cutters, the grating net and the centrifugal material throwing plates, food raw materialsare fully crushed and primarily screened; and through the arrangement of a grinding roller, a sieve plate, a blowing pipe staggered with the grinding roller and an air blowing cylinder, continuous blowing cleaning of sieve holes is achieved, and the sieving efficiency of the sieve plate is guaranteed.

The invention discloses a rotary drum type grain impurity remover. The rotary drum type grain impurity remover comprises a barrel body, a screening barrel and a cyclone dust-collecting barrel, whereinthe screening barrel is arranged in the barrel body; the two ends of the screening barrel are connected with rotary frames through spring sleeves; the center position of the right side of a rotary barrel frame is fixedly connected with a right sleeve; the left side of the right sleeve communicates with a feeding tube through a telescopic tube; and the right sleeve is sleeved with a feeding device. According to the rotary drum type grain impurity remover disclosed by the invention, the screening barrel, the spring sleeves and the rotary frames are arranged, and the screening barrel is used forcentrifugally screening grains to screen out large-particle solid impurities such as stones; and meanwhile, the spring sleeves enable the screening barrel to vibrate within a certain range, so that plug hole blockage is avoided, and screening efficiency is guaranteed. A hollow right rotary drum, a hollow left rotary drum, a spiral inlet roller, blades, a dust collecting cover and a cyclone sedimentation cylinder are arranged, so that feeding is convenient, dust in the grains is efficiently cleared, and screening and impurity-removal effect is good.

The invention relates to the field of seed drying, in particular to screening and drying apparatus for rice seeds. The screening and drying apparatus for the rice seeds comprises a support and a screening box arranged on the support. A conveying device is arranged on the support. A water conveying device for screening and washing the seeds is also arranged on the support. A screening device is arranged on the screening box. An opening-and-closing device is arranged at the bottom of the screening box, wherein the opening-and-closing device is used for allowing the seeds screened to fall. A drying device is arranged at a lower end of the screening box, wherein the drying device is used for drying the seeds washed. A draining device for draining water is arranged inside the screening box. According to the screening and drying apparatus for the rice seeds, the rice seeds are screened and washed in a large scale; compared with traditional manual screening and washing, the screening cardinalnumber is large; washing efficiency is high; production efficiency is improved; the cost is lowered; and one end of a water conveying pipe is arranged to be a shape with certain radian, influence anddamage caused to the rice seeds due to drainage can be reduced, and screening efficiency and washing efficiency are guaranteed.

The invention provides a reverse cover screening system which can improve the efficiency of automatically screening reverse covers and well avoids product appearance and performance defects. The reverse cover screening system comprises a vibration plate, wherein the vibration plate is provided with a circular orbit, the tail end of the circular orbit is provided with a pickup orbit, the pickup orbit is a section of straight vibration orbit, and an optical recognition system is positioned in front of the pickup orbit and above the circular orbit. The reverse cover screening system provided by the invention is characterized in that the initial position of the circular orbit is provided with a pre-screening area, a first inductor is arranged in the pre-screening area, the first inductor is positioned at the edge of a cover close to the inner side of the circular orbit, the middle section of the circular orbit is provided with a second inductor, the second inductor is positioned at the frontmost edge of the cover along the advancing direction of the orbit, and an optical lens of the optical recognition system faces the frontmost edge of the cover on the circular orbit along the advancing direction of the orbit.

The invention provides a raw material block grinding and derusting device for mechanical part machining. The raw material block grinding and derusting device for mechanical part machining comprises arectangular box body, a grinding and derusting structure, a material pushing structure, a lifting structure and a waste scrap screening structure. The waste scrap screening structure used for filtering and screening waste scraps generated in the grinding process is connected to the inner bottom of the rectangular box body. The waste scrap screening structure comprises a filter screen, a flat block, a sliding convex block, an L-shaped connecting rod, a vibration spring and a rectangular frame. A rectangular empty groove is formed in the center position of the bottom of the rectangular box body.A filter screen is arranged in a rectangular cavity. The raw material block grinding and derusting device for mechanical part machining has the advantages that screening for leakage can be conductedthrough the aperture of the filter screen, the content of contained rusted waste scrap materials is reduced, the possibility that a grinding ball is always in contact with a mechanical part is increased, the derusting efficiency is improved, waste scraps and grinding mechanical part mixtures can be automatically separated, and convenience is provided for picking ground mechanical parts.

The invention discloses a high-frequency screening method for a vibrating screen. A vibration exciter and a vibration system are adopted, the vibration exciter drives a screen surface to make high-frequency vibration through a transmission mechanism, and a screen box is static at the moment; the vibration system works in a near-resonance state, the whole machine is supported through vibration attenuation, so that the ground does not bear dynamic loads basically, the bottom of a screen machine needs a foundation made of high-strength springs, and the foundation is directly installed on the solid and smooth ground or a common steel structure platform; the vibration frequency of the screen surface of the screen machine ranges from 50 Hz to 100 Hz, the vibration amplitude ranges from 0 mm to 2 mm, and the mechanical strength is 8 times to 10 times of the gravitational acceleration. According to the high-frequency screening method for the vibrating screen, holes of the screen surface are not prone to being blocked, the screening efficiency is high, and the handling capacity is high.

The invention relates to the technical field of seed water separation and screening and discloses a seed screening and water separating device. The device comprises a base, and top of the base is fixedly connected with two symmetric supporting frames. A supporting plate is fixedly connected between the top ends of the two supporting frames, and the front face of the supporting plate is fixedly connected with two symmetric fixed sleeves. A water inlet pipe is sleeved between the inner rings of the two fixed sleeves, and spray heads are mounted on the outer surface of the water inlet pipe at equal intervals. A fixed plate is fixedly connected between the opposite side faces of the two supporting frames. The bottom of the fixed plate is fixedly connected with a motor and two supports. An output shaft of the motor is fixedly connected with a first belt wheel through a rotary shaft, and a rotary rod is movably connected between the side faces of the two supports. The seed screening and water separating device solves the problems that an existing seed water separation device is not high in work efficiency, seed separation is not thorough, trouble is caused, and labor is wasted, and has the beneficial effects of being high in work efficiency and good in screening effect and saving trouble and labor.

The invention provides a coal screening system device based on big data and a screening method thereof. In the coal processing direction, the system device comprises a pre-screening device, a crushing device and a screening device which are sequentially connected through a conveying belt; the system device further comprises a detection device, a control device and a data processing device, the detection device comprises a particle size analyzer, and the control device receives a detection signal sent by the particle size analyzer and feeds back and controls the screening speed of the pre-screening device, the crushing particle size of the crushing device and the screening speed of the screening device; and the data processing device records the detection signal received by the control device and a control signal sent by the control device, and feeds back and adjusts control parameters of the control device. The particle size distribution of coal at each stage is detected, and the data processing device is combined with the control device to adjust the parameters of the pre-screening device, the crushing device and the screening device, so that the screening particle size and the screening efficiency are ensured, and the coal screening system device has the characteristics of high stability, high efficiency, high reliability and the like.

The invention discloses an Internet of Things aquarium circulating water purifying device and a purifying method thereof, and relates to the technical field of aquarium purifying devices. The Internetof Things aquarium circulating water purifying device comprises an aquarium and a purifying box, wherein a physical purifying cavity, a biological purifying cavity and an oxygen conveying cavity areformed in the purifying box, a booster water pump is fixedly installed at the bottom of the oxygen conveying cavity, the oxygen conveying cavity communicates with the aquarium, meanwhile, an extraction pump is arranged on the outer wall of the aquarium, the extraction pump communicates with the physical purifying cavity, sewage in the aquarium is guided into the physical purifying cavity in the purifying box through the extraction pump, the physical purifying cavity physically purifies the sewage, the physically purified water is guided into the biological purifying cavity through a first conveying cavity, the biological purifying cavity biologically purifies the sewage, toxic and harmful substances such as ammonia and hydrogen chloride in the sewage are filtered out, purified water is guided into the oxygen conveying cavity through a second conveying cavity, oxygen is guided into the water through the oxygen conveying cavity, oxygenated clear water is guided into the aquarium throughthe booster water pump, and purifying of aquaculture water is achieved.

The invention relates to an asphalt concrete quality monitoring method and equipment. The method comprises the following steps: acquiring a sample, and collecting sand grains screened out in an asphalt concrete production process; screening sand grains, and screening the sand grains into materials with different particle size ranges; weighing the materials, and obtaining the weights of the materials in different particle size ranges through weighing; calculating the numerical value to obtain the proportion of the materials in different particle size ranges in the total sample amount; comparing the numerical values, comparing the proportions of the materials in different particle size ranges in the total amount of the sample with a qualified range, and when the proportion of the material in at least one particle size range in the total amount of the sample exceeds the qualified range or is lower than the qualified range, remaining the produced asphalt concrete in an asphalt concrete plant to wait for reprocessing; and when the proportions of the materials in different particle size ranges in the total amount of the obtained sand grains are all within the qualified range, allowing the asphalt concrete to be transported out of a factory. The method has the effect that the situation that unqualified asphalt concrete is transported out of a factory after being produced is reduced.

The invention discloses a sand screening device for constructional engineering, relates to the technical field of constructional engineering, and mainly solves the problems that a sand screening device used in existing constructional engineering is not thorough in screening in the using process, and residual impurities are inconvenient to clean. The device comprises a base, wherein supporting columns are arranged on the base and are connected with a mounting base; a conveying belt is arranged on the mounting base; a top plate is arranged above the base; screen drums are arranged on the lower side of the top plate and are installed in a rolling mode through rolling wheels; screens are arranged on the side walls of the screen drums; connecting rods are arranged between the screen drums; thescreens are arranged between the connecting rods and the screen drums; outer gear rings are arranged in the middles of the screen drums; a power device is arranged in the middle of the top plate; theouter gear rings are connected with the power device; a first conveying belt is installed in the screen drums in a suspended mode; and a second conveying belt is arranged at the bottoms of the left sides of the screen drums.

The invention discloses a large-substance sorting system for food waste. The large-substance sorting system comprises a sorting mechanism, wherein the sorting mechanism comprises a screen, a sorting assembly, a rotary transmission assembly which is in transmission connection with the sorting assembly, and a driving assembly which is in transmission connection with the rotary transmission assembly;the sorting assembly comprises a swing shaft which is in transmission connection with the rotary transmission assembly, and stirring paddles which are arranged on the swing shaft; the screen is an arc-shaped grating plate, is obliquely arranged, and comprises a first supporting piece, a second supporting piece, a plurality of grating holes, a plurality of arc-shaped spacing plates and a pluralityof straight rods, the two ends of the arc-shaped spacing plates are connected with the first supporting piece and the second supporting piece, each straight rod penetrates through the plurality of arc-shaped spacing plates, and the grating holes are composed of the arc-shaped spacing plates and the straight rods; and swinging arcs of the stirring paddles are parallel to extension lines of the arc-shaped spacing plates, and round tubes are rotationally arranged on the parts, forming the grating holes, of the straight rods in a sleeve mode. The large-substance sorting system has the advantagesthat the high screening purity of large substances is achieved, the screening efficiency is high, and the screen is not easy to block.

The invention relates to the technical field of limestone, and discloses modified limestone powder dry grinding and screening equipment. The equipment comprises a base, wherein the upper end of the base is movably connected with a dry grinding mechanism; the dry grinding mechanism comprises a shaft pipe; the shaft pipe is rotationally sleeved with an iron screen drum; the lower end of the shaft pipe is rotationally connected with a grinding roller extending to the inner wall of the iron screen drum; the position, at the upper end of the shaft pipe, of the front side of the iron screen drum is fixedly connected with a material box; and the front end of the iron screen drum is fixedly connected with a gear ring. According to the modified limestone powder dry grinding and screening equipment, the grinding roller is designed at the bottom of an inner cavity of the iron screen drum, an E-shaped rod is matched, the shaft pipe located at the upper side of the grinding roller is used for intermittent feeding, a convex half gear is used for driving the gear ring to rotate intermittently, an intermittent compression mechanism of a compression joint bag is matched, and then a knocking rod can knock the top of the iron screen drum intermittently, so that materials blocking sieve holes are vibrated off in time, the overall processing effect of the equipment is effectively improved, and the screening efficiency of the materials is guaranteed.