296results about How to "Speed up screening" patented technology

The invention discloses a smashing and screening device for compound fertilizer production. The smashing and screening device for compound fertilizer production comprises a base, a smashing tank, a bearing, a primary screening tank, a secondary screening tank, a second drive motor and a special-shaped gear, wherein the smashing tank is fixedly installed on the base through screws; two sets of mainsmashing rollers are installed in a smashing cavity in a bilateral symmetry mode; auxiliary smashing rollers are further rotationally installed in the smashing cavity; a scattering disc is further fixedly connected to the upper end of an output shaft of a first drive motor; the second drive motor is further fixedly installed on the outer wall of the right side of the smashing tank; and the special-shaped gear is further installed on an output shaft of the second drive motor. According to the smashing and screening device for compound fertilizer production, the structure is novel, and fertilizer particles are more uniform in the smashing process; and through arrangement of the scattering disc, smashed fertilizer is evenly tossed out and then falls into the primary screening tank, so that the fertilizer on the primary screening tank is evenly distributed and prevented from being accumulated on a screen of the primary screening tank.

The invention discloses a graphite powder grinding and screening device for a television picture tube. The graphite powder grinding and screening device comprises a base, a grinding box, a grinding ship, a preliminary screening plate, a ball screw, a grinding wheel, a shunt screening plate and a second driving motor. The grinding ship is slidably installed on a sliding rod. The preliminary screening plate is installed at the bottom of the grinding ship. A left moving block and a right moving block are installed on a left thread and a right thread of the ball screw. The other end of a third connecting rod is rotationally installed on a rotating shaft of the grinding wheel. The shunt screening plate is further installed in the grinding box. A tooth part of an incomplete gear is connected with a rack in a meshing mode. Compared with moving grinding of an ordinary grinding wheel in a grinding ship, according to the grinding device, through matching of left-right moving of the grinding ship and the grinding wheel, grinding can be conducted, meanwhile, left-right moving for screening can be conducted, so that the efficiency of grinding and screening is improved, meanwhile, the grinding box is indirectly driven to move up and down through the second driving motor, thus the speed of screening is improved, impurities of larger particles automatically enter an impurity box, and the graphite powder grinding and screening device for the television picture tube is simple and effective.

The invention discloses a construction waste treatment device with a metal separation function, comprising a separation box and a crushing box; the crushing box is arranged on the top of the separation box; a feeding channel is arranged in the separating box, and the outlet of the feeding channel is A solenoid valve is installed at the position; a separation plate is also provided in the separation box, and through the setting of the transmission mechanism, the separation plate can separate the metal in batches from the garbage in the discharge channel; the outlet of the discharge channel A sieve is provided below. The invention can effectively separate the metals in the construction waste and avoid the waste of metal resources; meanwhile, the separation effect is good.

The invention discloses a traditional Chinese medicine pill production device. The device comprises a sieve plate, a vibration motor, a cylinder, a second motor and a first motor. When pills fall on the top of the sieve plate after being prepared, the qualified pills fall into a discharging chamber through a discharging through hole formed in the sieve plate; the vibration motor vibrates and then drives the sieve plate to vibrate; the cylinder is used for pushing a push plate to move along the top of the sieve plate; a discharging channel is arranged to make unqualified pills which are discharged from a box fall into a receiving tank along the discharging channel; the second motor rotates and then drives spiral blades on a conveying rotary shaft to rotate, so that unqualified pills are conveyed from a feed inlet of a conveying device to a discharging opening of the conveying device, manpower is saved, and the production efficiency of equipment is improved; the first motor rotates and then drives crushing blades on a crushing rotary shaft to rotate so as to crush the unqualified pills.

The invention discloses a swing type superfine natural pearl powder screening device. The swing type superfine natural pearl powder screening device comprises a base, a screening box and a swing device. An output shaft of a rotating motor is forward and is provided with interval discharge plates in a manner of interference fit, a swing shaft is rotationally provided with a screening tank, and theswing device is further arranged at the bottom of the screening box. By arranging the interval discharge plates, interval quantitative discharge is realized, pearl powder falls into the screening tankto be screened, and the situation that the mesh screen is blocked by the pearl powder due to too high screening pressure caused by excessive one-time discharge is prevented; by achieving swing type screening of the screening tank, the speed of screening of the pearl powder on the mesh screen inside the screening box is increased, meanwhile the flow rate of the pearl powder on the mesh screen is improved, and the occurrence of hole blockage caused by the pearl powder is prevented; and through left-right tilting of the screening box, the discharge speed of the pearl powder is increased, the situation of pearl powder residue inside the screening box is avoided, and thus cleaning is relatively simple.

The invention discloses a convenient sorting ore crushing equipment, which comprises a crushing box, a dust removal box and a bottom plate. A crushing shaft is horizontally arranged in the middle of the crushing box, and a plurality of crushing blades are welded on the crushing shaft. The lower end of the crushing shaft is arranged There is a screen, the upper support rod is fixedly connected to both sides of the lower end of the screen, the bottom of the upper support rod is provided with a groove, the lower support rod is slid in the groove, the first buffer spring is arranged in the groove, and the crushing box The lower end is provided with a bottom plate, and a plurality of chutes are opened in the bottom plate, and a slider is slidably connected in the chute, and a floating rod is fixedly connected to the upper end of the slider, and a second buffer spring is set on the floating rod, and both sides of the bottom plate are fixedly connected. There is a vertical plate, and a third buffer spring is arranged on the vertical plate. The invention has a simple structure and a reasonable design, and can sort crushed ores. At the same time, the vibration and noise generated by the device are small, and the service life of the equipment is long.

A sand screening device used for municipal construction comprises a screening box. A sand inlet pipe is installed on the top of the screening box. A turning wheel is located at the position of a lower pipe opening of the sand inlet pipe. Multiple vanes are evenly arranged in the circumferential direction of the turning wheel. Each vane extends in the axial direction of the turning wheel. Multiple blades are arranged in the axial direction of the surface of the turning wheel at equal intervals. A first screening plate and a second screening plate both penetrate the screening box rightwards and extend to the outer portion of the screening box. A limiting spring is longitudinally connected between the first screening plate and a first fixed plate. A limiting spring is longitudinally connected between the second screening plate and a second fixed plate. A servo motor is fixedly installed on a supporting plate. An auger is arranged on the lower portion in the screening box. A gas inlet pipe extends to the interior of the screening box leftwards. A spray head is installed at the end, away from a gas pump, of the gas inlet pipe. The sand screening device is ingenious in structure and reasonable in design, the turning wheel drives the first screening plate and the second screening plate to vibrate up and down under the elastic force effect of the limiting springs, the speed at which sand penetrates screen meshes in the first screening plate and the second screening plate is increased, and the screening speed of the sand is increased.

The invention discloses a superfine natural pearl powder screening device with a convenient discharging function. The superfine natural pearl powder screening device comprises a base and a screening tank, wherein the screening tank is arranged on the base; a blocking plate is arranged on the lower side of a feeding hopper; a screening slot is rotationally mounted on a swinging shaft; a driving motor is fixedly mounted on a bracket; and a left cam and a right cam are mounted on output shafts positioned at the left and right ends of the driving motor in an interference fit manner, and correspondingly get in contact with ejector blocks positioned at the lower ends of a left ejector rod and a right ejector rod. Through the arrangement of an intermittent discharging disc, the intermittent quantitative dropping operation can be achieved when pearl powder drops into the screening slot for being screened, thereby preventing the circumstance that too much pearl powder drops at a time, the screening pressure is excessive, and then a screening mesh is blocked by the pearl powder; through the swinging screening action of the screening slot, the pearl powder screening operation on the screeningmesh inside the screening tank can be accelerated; and through the left and right inclination of the screening tank, the pearl powder discharging speed can be improved, the residue of the pearl powder inside the screening tank can be avoided, and then the relatively simple cleaning operation can be achieved.

The invention discloses a ceramic material grinding and screening device for three-dimensional (3D) printing. The ceramic material grinding and screening device for 3D printing comprises a base, a grinding box, a grinding boat, a receiving groove and a grinding wheel, wherein the grinding box is fixedly arranged on the base through screws; at least two groups of slide rods are horizontally and fixedly arranged in the grinding box; the grinding boat is slidably arranged on the slide rods; third connecting rods are hinged to the lower sides of moving blocks; and the other ends of the third connecting rods are rotatably arranged on a rotary shaft of the grinding wheel. The ceramic material grinding and screening device for 3D printing provided by the invention is novel in structure; the grinding pressure can be adjusted through adjusting the space between the grinding wheel and a preliminary screening plate on the bottom part of the grinding boat, and the grinding pressure can be adjustedaccording to the required grinding granularity, so that a grinding effect is greatly improved; and through the up-and-down vibration of a sieve plate, the screening speed of ceramic material powder on the sieve plate is greatly improved, and meanwhile, the ceramic material powder is prevented from blocking on the surface of the sieve plate through the up-and-down vibration of the sieve plate compared with a static sieve plate.

The invention discloses a medicine powder grinding device for capsule tablet preparation. The medicine powder grinding device comprises a base, a rack, a grinding box, a driving motor, a semi-gear, a collision head, a grinding head, a preliminary grinding cavity and exquisite grinding cavities; the other end of a fixed support is fixedly provided with the driving motor, an output shaft of the driving motor is forward, the semi-gear is installed on the output shaft of the driving motor in an interference fit manner, a grinding shaft is installed at a gear core in an interference fit manner and extends into the preliminary grinding cavity, the grinding head is installed in the preliminary grinding cavity, a screen net is connected to the interior of the grinding box through a neck, and the two exquisite grinding cavities are further arranged inside the grinding box. According to the grinding device, the collision head is arranged, and therefore medicine powder can be effectively prevented from adhering to the inner wall of the grinding box; through left-right movement of the grinding box, the medicine powder screening speed is increased; and meanwhile, through the arrangement of the preliminary grinding cavity and the exquisite grinding cavities, medicine powder grinding is more sufficient, and the human body absorbing speed after a tablet is taken by a patient is increased.

The invention discloses a medical medicinal material grinding device with noise reduction function, which comprises a base, a piston cylinder, a piston ball, a shear thickening liquid, a grinding box, a driving motor, a runner, a feeding device, a grinding motor, a grinding wheel and Material receiving device, the inside of the piston cylinder is filled with shear thickening liquid; several groups of elastic steel plates are fixedly installed on the left and right sides of the support seat. The upper end of the elastic steel plate is rotated by a bearing to install a pulley, and the pulley is slidably installed inside the slide rail; A feeding device is connected to the lower side of the feeding port. According to the change of the descending speed of the piston ball, the shear thickening fluid can produce different resistances to improve the shock absorption effect of the device when it is working. The two sides move to press the elastic steel plate downward to play the role of shock absorption and buffering. Through the joint action of the above two kinds of shock absorption and buffering, the noise generated during the grinding process can be effectively reduced.

The invention discloses a tumor neoantigen screening method fused with single cell TCR sequencing data. The tumor neoantigen screening method comprises the following steps: based on whole exon sequencing data and transcriptome sequencing data, carrying out quality control, comparison and other steps through software to obtain a neomutant peptide library; predicting an HLA-I type typing by using HLA typing prediction software; in combination with single-cell TCR sequencing and single-cell transcriptome sequencing, finding cancer-specific CD8 + T cell receptors through cell type annotation and clone frequency analysis; meanwhile, based on integrated deep learning, the short peptide immunogenicity is identified through a peptide-TCR interaction prediction model, a tumor neoantigen screening method fused with single cell TCR sequencing data is provided, and the problems that a traditional tumor antigen screening method is high in neoantigen misselection and missed selection rate, insufficient in immunogenicity and the like are solved.

The invention discloses a device for quickly cutting and crushing forage of animal husbandry. The device comprises a base; the top of the base is fixedly provided with a cutting box through a supportframe; the left side and the right side of the inner bottom of the cutting box are respectively rotatably connected with one lower round plate through a first rotating shaft and a second rotating shaft; the left side and the right side of the top of the cutting box are respectively fixedly provided with a first speed reduction motor and a second speed reduction motor; the motor shafts at the bottom ends of the first speed reduction motor and the second speed reduction motor pass through the top wall of the cutting box and are respectively fixedly connected with one upper round plate; a crankshaft is fixedly connected between the lower round plate and the upper round plate at the left side, and a crankshaft is fixedly connected between the lower round plate and the upper round plate at theright side; a plurality of connecting rods are respectively rotatably connected at the positions of the crankshaft journals; the right end of the connecting rods at the left side are hinge with a plurality of first cutting blades; the left ends of the connecting rods at the right side are hinged with a plurality of second cutting blades; and the first cutting blades are matched with the second cutting blades. According to the invention, forage is crushed by a plurality of cutting blades matched with each other, and vertically adjacent cutting blades move back and forth to cut the forage, so that the forage is prevented from falling directly after cutting for one time, so that the cutting effect is better and the efficiency is high.

The invention discloses a high-efficiency peanut screening machine, which comprises a first casing, a first motor is arranged on the lower surface of the inner wall of the first casing, and a turntable is sleeved on the surface of the output shaft of the first motor. In this high-efficiency peanut screening machine, through the rotation of the second shell, the peanuts are screened on the screening plate for the first time, and at the same time, the ejector pin intermittently lifts up the second shell, and the first spring drives the second shell The body moves downward, causing the peanuts to be vibrated on the screening plate and screened again. At the same time, the second universal roller is in contact with the convex slope intermittently, causing the second shell to shake, and the peanuts are screened again. The movement of each structure makes the peanuts move irregularly, which is convenient for screening out shriveled peanuts, and at the same time reduces the time for screening shriveled peanuts and speeds up the screening speed, thereby improving the efficiency of screening and indirectly improving the quality of peanuts. Production efficiency of edible products.

The invention discloses an energy-saving type roller type fine grinding device for PVC new material machining. The device comprises a base, a grinding box, a dividing device, a driving motor, and a screening groove; the dividing device is arranged on the left side of the top of the grinding box, a primary grinding cavity is formed in the upper portion in the grinding box, a limiting sliding rod ishorizontally welded into the grinding box, the screening groove is arranged on the limiting sliding rod in a sliding manner, a PVC new material is subjected to intervalic charging, through PVC new material grinding, the blockage appearing in smashing due to too much one-time charging is avoided, the grinding effect is greatly improved, during screening, the screening groove moves left and right,screening speed of the PVC new material powder in the screening groove is improved, the condition that the PVC new material powder blocks meshes is avoided, meanwhile, through the driving motor, grinding and screening are driven at the same time, the use rate of the motor is greatly saved, meanwhile, the energy saving effect is achieved, and the device is energy-saving and environment-friendly.

The invention discloses a vaginal secretion staining fluid, and a preparation method and a staining method thereof. According to the preparation method, a blue basic dyestuff and a red basic dyestuff are mixed so as to obtain the vaginal secretion staining fluid, so that the vaginal secretion staining fluid possesses staining effects of universal staining fluid, staining time can be shortened greatly, staining time is shortened from general 5-30min to 20s, staining efficiency is increased greatly, and screening speed of clinical samples is accelerated. And in addition, imagines obtained via staining with the vaginal secretion staining fluid are clear, and are convenient for identification; surface layer squamous epithelial cells, middle layer epithelial cells, bottom layer epithelial cells, clue cells, leukocytes, erythrocytes, monilia albicans, and trichomonad can be identified clearly; and the vaginal secretion staining fluid is suitable for large-scale sample clinical screening.

The invention mainly discloses a multilayer screening machine which comprises a first box, a second box, a first screen plate, a second screen plate and a third screen plate. The second box is positioned in the first box and connected with a first rotating device, the first screen plate, the second screen plate and the third screen plate are sequentially arranged in the second box from top to bottom, a stirring device is arranged in the second box and comprises a stirring rod, a stirring disk and a second rotating device, the stirring rod penetrates the second box and the first box and is connected with the second rotating device, the stirring disk is connected with the stirring rod and respectively positioned above the first screen plate, the second screen plate and the third screen plate, and combing teeth are arranged on the stirring disk. According to the multilayer screening machine, automatic multilayer screening is achieved by the aid of a plurality of screen plates, the screening machine is wide in screening range, the stirring device and the second box mutually and reversely rotate, screening of materials is accelerated, screening quality is improved, blocking of the screening machine is prevented, maintenance frequency is reduced, and the service life of the screening machine is prolonged.

The invention relates to cutting and sorting equipment, in particular to rapid radish dicing and sorting equipment. The rapid radish dicing and sorting equipment is provided for replacing existing machines and manual work and achieving the rapid and easy radish dicing effect. According to the technical scheme, the rapid radish dicing and sorting equipment comprises a base, an arc-shaped plate, a circular screen frame and a second mounting plate, wherein a first mounting plate is mounted on the top of the base; the arc-shaped plate is arranged on one side of the top of the first mounting plate;the length direction of the arc-shaped plate is parallel to the length direction of the first mounting plate; the circular screen frame is arranged at the end of the arc-shaped plate; and the secondmounting plate is fixedly connected to the position, far away from the top of the first mounting plate, of the sidewall of the circular screen frame. Through cooperation of a cutting device and a pushing device, the rapid radish dicing and sorting equipment can cut radish into long strips and then cut the long radish strips into radish strips through the pushing device. The cutting device can conduct dicing on the radish strips without manually pushing radishes, and the effects of quickness, high efficiency and convenience are achieved.

The invention discloses a multistage vibration type traditional Chinese medicine screening device and relates to the technical field of traditional Chinese medicine processing. The multistage type traditional Chinese medicine screening device comprises a processing box. A drive motor is fixedly connected to one side of the processing box, and an output shaft of the drive motor is fixedly connectedwith a rotating rod. Material screening mechanisms are arranged above and below the rotating rod correspondingly. Each material screening mechanism comprises a fixing frame, wherein a material screening device is arranged in the fixing frame, and a lifting sliding rod and an ejection plate are fixedly connected to the two ends of the fixing frame correspondingly. The rotating rod is fixedly connected to a cam corresponding to the corresponding ejection plate. End portion reset devices are fixedly arranged at the positions, on one sides of the lifting sliding rods, of the processing box. By means of the multistage vibration type traditional Chinese medicine screening device, the drive motor is arranged for driving the cam to rotate, under the effect of the end portion reset devices, a screen plate can move in a reciprocating manner in the vertical direction, due to the arrangement of a first conical wheel, second conical wheels and eccentric wheels, the screen plate can move in a reciprocating manner in the left-right direction, and therefore the screen plate can move in the vertical direction and the horizontal direction, the material screening work is conducted conveniently, andthe screening efficiency and speed are increased.

The invention discloses an electromagnetically driven vibration type activated carbon grinding and screening device. The device comprises a base, a grinding box, a first driving motor, a ball screw, agrinding groove, a primary screening box and a secondary screening box; and the grinding box is arranged above the base, the primary screening box and the secondary screening box are installed on a first sliding rod and a second sliding rod correspondingly, the right end of the first sliding rod is fixedly connected with a first rack, the right end of the second sliding rod is fixedly connected with a second rack, and a special-shaped rotating wheel is further installed on an output shaft of a second driving motor. According to the device, left-and-right swinging of the primary screening boxand the secondary screening box can be realized at the same time by utilizing the rotation of the second driving motor, the screening speed can be increased through left-and-right swinging of the primary screening box and the secondary screening box, during screening, through multi-dimensional vibration, the activated carbon screening speed is greatly increased, meanwhile, the condition that screening holes are blocked by activated carbon particles is avoided, and the working efficiency is improved.

The invention discloses a fast screening method for the battery internal resistance and capacity, wherein the method is used for rapid screening of battery monomers decommissioned from new energy vehicles and having the same specifications. The method comprises the steps: inspecting the appearance of multiple battery monomers through visual inspection, removing battery monomers with unqualified appearance, and thus obtaining battery monomers with qualified appearance; putting the battery monomers with qualified appearance into a parallel device, and carrying out parallel equalization for the time of tp, to obtain parallel-equalized battery monomers; putting the parallel-equalized battery monomers into a series device, carrying out series charging and discharging for the time of ts, recording the voltage of the battery monomers at the end moment of series charging and discharging, classifying the battery monomers according to the voltage, carrying out capacity sampling fine screening ofthe classified battery monomers, and thus obtaining fine-screened battery monomers; and calculating the capacity of the fine-screened battery monomers, to complete screening of the capacity, and determining the internal resistance of each battery monomer according to the voltage jump change of each battery monomer at the end moment of series charging and discharging.

The invention provides a catalytic material screening method and a catalytic material screening system combining a high-throughput experiment and high-throughput calculation. The method comprises thesteps: screening a to-be-confirmed catalytic material meeting a target catalytic performance by using a catalyst structure-activity relation model constructed based on the data results of a high-throughput experiment and high-throughput calculation; performing high-throughput preparation and high-throughput performance evaluation on the screening result to obtain the experimental result of the to-be-confirmed catalytic material; and comparing the catalytic performance prediction result of the to-be-confirmed catalytic material with the experimental result of the to-be-confirmed catalytic material, and determining that the to-be-confirmed catalytic material is the catalytic material reaching the target catalytic performance under the condition of a predetermined deviation range. According to the scheme, the theoretical calculation simulation result, the existing experiment result and the new catalyst characterization result can form a mutual verification relationship through the catalyst structure-activity relationship model constructed based on the high-throughput experiment and the high-throughput calculation, so that the screening precision and the screening speed of the catalytic material are improved.

The invention discloses a rapid sand screening device for municipal construction. The rapid sand screening device for municipal construction comprises an operation box. A driving motor is fixedly mounted at the top of the operation box. A driving shaft is coaxially and fixedly mounted on an output shaft of the driving motor. A turning wheel is rotatably arranged on the inner side wall of the operation box. A screening tank is horizontally arranged in the operation box. A second right guide rod is horizontally and slidably arranged on a limiting support. An incomplete gear connected with a straight rack in an engaged mode is fixedly arranged on the outer surface of a driven shaft in a sleeving mode. According to the rapid and screening device for municipal construction, scattering rods rotate to rotatably scatter sand in the screening tank so that the sand can easily pass through the screening tank to enter a collection tank, the turning wheel rotates to drive the screening tank to reciprocate leftwards and rightwards through guide rods, so that the sand is promoted to shake back and forth, and the screening speed of the sand is increased; and a hollow-square frame reciprocates leftwards and rightwards to drive a brush plate to reciprocate leftwards and rightwards through the second right guide rod and to scrape the screening tank repeatedly, so that it is ensured that sieve holes in the bottom of the screening tank are normal and are prevented from being blocked, and the screening efficiency of the sand is effectively improved.

The invention discloses a grinding device for manufacturing of river snail rice noodles. The grinding device comprises a base, a grinding box, a rotary grinding disc, a fixed grinding disc, a smashingtrough and a sieve. The lower end of a main shaft is fixedly connected with the rotary grinding disc, material leaking seams are formed in the rotary grinding disc, a plurality of sets of grinding bulges are further arranged on the lower surface of the rotary grinding disc, and the fixed grinding disc is fixedly mounted on a bracket. A grinding motor is driven to start rotating, thus the grindingmotor drives the grinding bulges to rotate at the high speed, the river snail rice noodles are ground through the grinding bulges, and by arranging the grinding bulges, the river snail rice noodles are ground more fully; meanwhile, electrifying is conducted to enable fine smashing rollers to start to work, the fine smashing rollers finely smash the river snail rice noodles inside the smashing trough, and the smashing effect is greatly improved through two times of smashing; and the smashing trough swings leftwards and rightwards, and thus the screening speed of the river snail rice noodles inside the smashing trough is increased.

The invention relates to a screening method for the tea plant clone containing different catechuic acid contents and components, which solves the problems that the detection for the catechuic acid contents and the components in the callus or clone of tea plants needs long time and the operation is complex in the screening technology. The screening method includes four operating steps of inducing and successively transferring the clone, screening the callus containing different catechuic acid contents, screening the clone containing different catechuic acid contents, and screening the clone containing different catechuic acid components. The invention can screen the clone containing different catechuic acid contents and components and display the difference of the catechuic acid contents of the callus within the short time of 5-10 min, thereby having the great advantages that the catechuic acid detection can be performed during the successive transfer operation process; a plurality of samples can be analyzed once by the thin layer chromatography and identification of the catechuic acid components of the clone of the tea plant, in addition, a new component can be also found by the thin layer chromatography and identification, thereby the screening of the clone containing different catechuic acid contents and components is accelerated.

The invention provides a straw smashing device achieving full smashing. The straw smashing device comprises a smashing chamber, wherein a feeding groove is formed in the right side of the top of the smashing chamber, the top of the smashing chamber is fixedly connected with the bottom of a first motor, the output end of the first motor is fixedly connected with the top end of a first output shaft,the bottom end of the first output shaft penetrates through the top end of the smashing chamber and extends into the smashing chamber, and smashing rods are fixedly connected to the side surface of the first output shaft. By arranging the smashing chamber, the feeding groove, the first motor, the first output shaft, the smashing rods and smashing teeth, when the straw smashing device begins to work, straw is guided into the feeding groove, the first motor is connected with a power supply when the straw reaches the smashing chamber, the output end of the first motor drives the first output shaft to rotate after the first motor is started, the smashing rods also rotate with the first output shaft, and longer straw is sheared and smashed between the smashing rods and the smashing teeth.

The invention relates to a screening device for decoration, in particular to a sand screening device for decoration, and aims to solve the technical problem of providing the sand screening device which can lower the labor intensity, increase the screening speed, improve the decorating efficiency and shorten the decorating time. The sand screening device for decoration comprises a bottom plate, twofulcrum bars, a box body, a box door, a discharging hopper and the like, wherein the left side of the top of the bottom plate is vertically connected with the two fulcrum bars through bolts; the twofulcrum bars are in bilateral symmetry; the box body is connected between the top ends of the two fulcrum bars through bolts; the left side of the bottom of the box body is hinged to the box door through a hinge joint component; and the discharging hopper is mounted at the top of the box body. A driving device drives the sand screening device to screen sand so as to realize the effects of loweringthe labor intensity, increasing the screening speed, improving the decorating efficiency and shortening the decorating time.

The invention discloses a sand screening device for construction, and belongs to the field of architectural engineering. The sand screening device for construction comprises a screening box and a vibrating screen plate, wherein the drive end of a motor is connected with a third rotary shaft; one end, away from the inner side wall of a drive cavity, of a fourth rotary shaft passes through a partition, extends into a screening cavity, and the extending end is connected with a dispersing assembly; one end, away from the third rotary shaft, of a first linking assembly is connected to one end, inside a drive shaft, of a second rotary shaft; one end, away from a rotary rod, of a transmission assembly is connected to the rod wall, inside the drive cavity, of the fourth rotary shaft; and one end,away from a rotary rod, of a reciprocating mechanism is connected to the side wall of the vibrating screen plate. The motor works to drive a first pressure roller and a second pressure roller for pressing sand through the first linking assembly, the dispersing assembly disperses pressed sand onto the vibrating screen plate, and the reciprocating mechanism drives the vibrating screen plate to shakeback and forth to perform sand screening, so that sand screening speed is quickened, and working efficiency of the device is improved.

The invention discloses a tag library-based segmentation method of service objects, and belongs to the field of data analysis. The tag library-based segmentation method of the service objects includesthe following steps: S1, constructing a customer database, wherein customer information is collected and preprocessed, and at least one tag is matched to each customer ID on one or more dimensions toform a customer set; S2, loading the customer database into a system memory; S3, establishing a target customer group, wherein customer sets with tags to be used for screening are taken out from thecustomer database loaded into the system memory; and S4, establishing target customer subgroups, wherein the target customer group is segmented into the multiple target customer subgroups according toall tags associated on dimensions on which segmentation is to be carried out, and then the same are respectively saved and output. According to the method, a screening speed is increased through adopting memory screening technology; and at the same time, fast segmentation on the target customer group is also realized through adopting a method of dimension segmentation, and the multiple target customer subgroups are output at one time.