21results about How to "Guaranteed screening efficiency" patented technology

The utility model relates to the technical field of agricultural product screening devices, and discloses an agricultural product primary processing screening device convenient to clean, which comprises a shell I, a screen is arranged in an inner cavity of the shell I, a vibration motor is fixedly mounted at the bottom of the screen, and fillets are fixedly mounted at the bottom of the screen and located on the left side and the right side of the vibration motor respectively. Grooves are formed in the bottoms of the fillets, sliding grooves are symmetrically formed in the left portion and the right portion of an inner cavity of the first shell, cavities are formed in the bottoms of the sliding grooves, electromagnets are fixedly installed at the bottoms of inner cavities of the cavities, springs are fixedly installed at the positions, located on the left sides and the right sides of the electromagnets, of the bottoms of the inner cavities of the cavities correspondingly, and movable plates are fixedly installed at the telescopic ends of the springs; and through clamping of an electromagnet power-on and power-off adjusting limiting block and a groove, the screen mesh is convenient to disassemble and assemble, so that the screening mechanism is cleaned, a large amount of time is prevented from being consumed, the working efficiency of the device is prevented from being influenced, maintenance of the device is facilitated, the maintenance efficiency is improved, and the failure rate of the device is reduced.

The invention provides a new energy power station planning method and system, and the method comprises the steps: obtaining the static characteristics of a plurality of candidate points, the static characteristics including the seismic activity frequency, the altitude, the gradient and the underground water burial depth; calculating a static abnormal score of each candidate point based on the static features of the candidate points, and performing a first round of screening on all the candidate points according to the static abnormal scores to obtain remaining candidate points; obtaining dynamic characteristics of each residual candidate point, wherein the dynamic characteristics comprise wind speed, sunlight intensity, environment temperature, environment humidity and precipitation; and performing a second round of screening on all the remaining candidate points based on the dynamic feature of each remaining candidate point and the static abnormal score of each candidate point to obtain a final point location. According to the method, multi-dimensional quantitative evaluation of new energy power station site selection is realized through a static and dynamic dual screening and clustering optimization mechanism, and site selection scientificity and engineering reliability are remarkably improved.

The application relates to the field of blueberry screening, and discloses a blueberry sorting device which comprises a workbench, a material distributing device, a screening mechanism and a conveying mechanism. A plurality of parallel guide grooves are formed on the workbench. The material distributing device is installed at one end of the workbench and comprises a storage hopper and a sliding plate connected to the bottom of the storage hopper. A discharge port aligned with each guide groove is installed in the sliding plate. The workbench under the guide grooves is hollow. The screening mechanism is installed in the workbench in the length direction of the guide grooves in sequence. The screening mechanism drives the blueberries away from the material distributing device. A dropping port is formed on the workbench under the guide grooves. The conveying mechanism is located below the dropping port. The screening mechanism is arranged on the workbench, different sizes of blueberries can be dropped from different dropping ports, and the damage of the blueberries caused by mutual extrusion and extrusion with the screen holes during screening can be avoided, so that the waste rate of the blueberries is greatly reduced, and the economic benefits of the blueberries are effectively ensured.

The utility model discloses a PVC granule cooling vibration sieve relates to PVC granule processing technical field, the utility model discloses a cooling sieve box and controller, the controller fixed mounting is at the cooling sieve box front surface, and the both opposite surfaces of cooling sieve box all are established with two opening grooves, and the both opening grooves between sliding installation have the sliding board, and two sliding boards both ends extend to the outside of cooling sieve box through the opening groove, and the both sliding boards upper surfaces all are established with the installation groove, and the both installation grooves inside all are installed with the screening net, and the cooling sieve box one surface is installed with two mounting sleeves through bolt, and the position of two mounting sleeves corresponds with the position of two sliding boards. The utility model discloses through sliding board, return spring and eccentric wheel structure, make two sliding boards and screening net move back and forth fast in horizontal direction, realize the transverse vibration of screening net, and when the accumulation of PVC granule can be dispersed screening through the fast transverse vibration, guarantee the screening efficiency of device.

The utility model relates to screening device technical field especially relates to a kind of steel fibre screening machine.Its technical scheme includes: receiving hopper, connecting cover, electric push rod and support cover, the support cover is provided on receiving hopper upper end outer wall, the support cover outer wall is equipped with the fixed plate of circular array distribution, the support cover upper end outer wall is provided with connecting cover, the connecting cover lower end outer wall is equipped with the inlay block of circular array distribution, the connecting cover inner wall one side is equipped with screening board, the connecting cover inner wall one side lower end is equipped with electric push rod, the electric push rod upper end outer wall is equipped with motor body, the motor body upper end outer wall is provided with support disc, the support disc outer wall is equipped with the top plate of circular array distribution, by setting electric push rod, motor body and top plate, reached the effect of cleaning screening hole, guarantee the cleanness inside screening hole, guarantee the screening efficiency of workpiece through screening hole.

The utility model provides a biomass particle screening device which relates to the technical field of biomass particles and comprises a base, rotating seats are symmetrically and fixedly connected to the top of the base, a screening drum is rotatably connected between the inner surfaces of the two rotating seats, a first gear is fixedly connected to the outer surface of one side of the screening drum, and a second gear is fixedly connected to the outer surface of the other side of the screening drum. And the outer surface of one rotating seat is fixedly connected with a motor, the output end of the motor is fixedly connected with a second gear, and an auxiliary assembly is arranged between the tops of the two rotating seats. In the screening process and the rotating process of a first gear, a transmission gear can be driven to rotate, so that a connecting rod and a cam rotate along two connecting bases, a push block is pushed in a reciprocating mode, and under the action of a spring and a sliding rod, a knocking block is driven to move up and down in a reciprocating mode to knock a screen drum in a reciprocating mode; biomass particles blocked in meshes of the screen drum are knocked off, and the screening efficiency is guaranteed.

The application belongs to the technical field of quartz sand processing, in particular to a fine crushing and multi-stage purification process for preparing ultra-high-purity quartz sand, which comprises a machine body, a fixed frame is fixedly connected to the upper surface of the machine body, a feeding port is formed in the fixed frame, a first motor is arranged below the machine body, a crushing roller is drivingly connected to the output end of the first motor, auxiliary plates are fixedly connected to the inner wall of the feeding port on both sides, tooth gears are fixedly connected to one side of the auxiliary plates and staggered with the tooth gears on the circumferential surface of the crushing roller, the auxiliary plates are used for assisting the crushing roller to crush quartz sand, a purification cavity is fixedly connected to the middle of the machine body, and a sieve plate is elastically connected in the purification cavity, through the hooking assembly and the blockage cleaning assembly, the problem that the existing screening is blocked and the screening efficiency is reduced is solved, and the problem that the falling is slow during the screening process is solved.

This utility model relates to the field of plastic bucket production technology, specifically a raw material screening machine for plastic bucket production. It includes: a machine body, comprising a vibrating screener with a screening disc on its surface; and a uniform feeding mechanism, including a fixing rod fixedly connected to the surface of the vibrating screener. This utility model, through the connection between the fixing rod and the feeding hopper, allows the raw materials for plastic bucket production to be evenly fed into the hopper. The connection between the cross-shaped fixing frame and the anti-clogging cone prevents clogging. The connection between the drive motor and the scraper allows the drive motor to rotate the scraper, preventing raw materials from adhering to the surface of the anti-clogging cone. The connection between the protective box and the drive motor allows the drive motor to rotate the rotating roller. The connection between the rotating roller and the dividing plate allows the raw materials to be evenly grouped and fed into the machine, thus improving screening efficiency.

The utility model discloses a ceramic tile micro powder ball-milling, screening and returning device which comprises a supporting frame, a ball mill is installed at the top of the supporting frame, a feeding hopper is installed on the left side of the ball mill, and a material receiving pipe penetrating through and extending to the lower portion of the supporting frame is fixedly installed at the top of the supporting frame. A conveying pipe is fixedly installed on one side of the supporting frame in an inclined mode, an auger conveyor is installed in the conveying pipe, and a material receiving frame is fixedly installed on the lower portion of the auger conveyor. According to the ceramic tile micro-powder ball-milling screening and returning device, through the arrangement of the conveying pipe, the material receiving frame, the screen and the like, micro-powder can be screened through the screen, qualified micro-powder and unqualified micro-powder are effectively separated, and through the arrangement of the material receiving frame, the screen, the conveying pipe, the auger conveyor and the like, the quality of the ceramic tile micro-powder is improved. According to the feeding device, unqualified raw materials can be rapidly returned to the feeding hopper through the conveying pipe and the auger conveyor and can be ground again through the ball mill, the material returning speed is increased, and full utilization of the raw materials is achieved.

The utility model discloses a capsule production raw material screening device which comprises a box body, an electric control device is fixedly connected to the outer wall of the box body, a plurality of supporting legs are fixedly connected to the outer wall of the bottom of the box body, a feeding channel is fixedly connected to the top of the box body, and a feeding screening mechanism is arranged at the bottom of the feeding channel. A treatment box is arranged on the inner wall of the box body, a plurality of first screening holes are formed in the bottom of the treatment box, a stirring screening mechanism is arranged on the inner wall of the treatment box, and a discharging cover plate is rotationally connected to the outer wall of one end of the bottom of the box body. Raw materials can be guided into the box body through the feeding channel arranged at the top of the box body, the raw materials can be screened and refined through the feeding screening mechanism arranged at the bottom of the feeding channel, the quality of the raw materials is guaranteed, the raw materials can be further screened through the processing box, and the processing efficiency is improved. By arranging the stirring and screening mechanism in the treatment box, stirring and screening treatment can be conducted in the treatment box.

The application relates to a fine sand screening device for special mortar production and relates to the technical field of special sand production. The device comprises a screening box, a raw material box is communicated with a feeding opening of the screening box, a sieve plate is arranged in the screening box, the sieve plate is arranged obliquely, a sand outlet is formed in an inner wall of a lower end of the screening box close to the sieve plate, a grinding mechanism is communicated with the sand outlet, a receiving plate is arranged below the sieve plate, the receiving plate is arranged obliquely, and a collecting opening is formed in an inner wall of a lower end of the screening box close to the receiving plate. The application has the effects of realizing fine sand screening work in the special mortar production process and improving the quality of the special mortar.

The present application belongs to the technical field of bacteria group compatibility, and particularly relates to a bacteria group compatibility method and system based on target efficacy prediction. The method collects target parameters and calculates their efficacy in different bacteria groups, divides the efficacy into positive efficacy and negative efficacy according to the change trend of the target parameters, and calculates and obtains an efficacy total value that can comprehensively reflect the comprehensive action of the bacteria groups; each candidate bacteria group is sequentially set as a target bacteria group, and the remaining bacteria groups are taken as compatibility bacteria groups for systematic comparison; the compatibility bacteria groups and the target bacteria groups are screened and sorted according to the compatibility difference, and a compatibility scheme is generated. The present application can more comprehensively and objectively reveal the real comprehensive performance of the bacteria groups by distinguishing and aggregating the positive and negative efficacies, thereby improving the accuracy and reliability of the target efficacy prediction, and classifying and iteratively comparing on the basis of objective data to ensure the objectivity and repeatability of the screening process, and at the same time, ensure the screening efficiency.

The utility model relates to building waste treatment technical field, concretely is a kind of building interior decoration waste classification and recovery device, including multiple support legs, the top of multiple support legs is fixedly connected with support plate, the surface of support plate is rotatably connected with screening cylinder, the surface sliding connection of both ends of support plate has moving block, the surface sliding connection of moving block has fixed plate, the surface of fixed plate is rotatably connected with shaft, the surface of shaft is inserted with connecting shaft, two connecting shafts are fixedly connected with brush, and the surface of brush is attached in screening cylinder;Beneficial effects are that: the outer surface of screening cylinder is provided with brush, can clean the decoration waste particles attached on screening cylinder, prevent waste from plugging sieve hole, ensure the screening efficiency and effect of screening cylinder, by the cooperation of manual screw rod, moving block and fixed plate, the distance of brush and screening cylinder can be flexibly adjusted to change cleaning intensity, further improve screening effect and efficiency.

This utility model discloses a screening device for producing high-slag-erosion-resistant iron trough castable, specifically relating to the technical field of screening equipment. It includes a driving component for driving a screen frame to screen the iron trough castable. The driving component comprises two screws respectively located on both sides of the screen frame, with the screws externally fixed to the screen frame via a buffer component. A movable shaft is located at the bottom of the buffer component. This utility model uses a servo motor to drive the screws to rotate. The screws drive the movable shaft to rotate synchronously via a first pulley, a belt, and a second pulley. Thus, when the screws drive the moving seat to reciprocate the screen frame, the movable shaft drives a lever to repeatedly move a spring-limited connecting plate up and down. This causes the material on the screen plate to not only be pushed but also thrown up and fall freely due to the up-and-down movement of the screen plate, creating a compound vibration. This also increases the collision efficiency between the material and the screen frame, achieving the purpose of breaking up material agglomeration and preventing screen frame blockage.

This utility model belongs to the field of screen technology and discloses a detachable double-layer screen, including an inner screen unit, an outer screen unit, and a screen body unit coaxially sleeved between the inner and outer screen units. A rotating shaft passes through the center of the screen body unit. Both the inner and outer screen units contain more than two arc-shaped screen units, which are detachably spliced ​​around the center of the screen body unit to form a double-layer cylindrical screen. The screen body units are evenly spaced on the rotating shaft and combined with the corresponding double-layer cylindrical screen to form a complete screen. A screen cover is provided on the left side of the complete screen, and support rods are evenly distributed on the outer circumference of the screen body unit. A trumpet-shaped discharge port is provided on the right side of the complete screen. This utility model can quickly replace the screen, reduce the overall screen replacement production cost, and the two screens form a multi-stage filtration. High-pressure air is blown from the inside of the screen to the outside to remove impurities and salt blocks adhering to the screen and assist in the removal of debris.

The utility model discloses a potato grading screening device which comprises a mounting table, a coarse screen and a fine screen, a rotating column is rotatably mounted on the top face of the mounting table, a first rotating disc and a second rotating disc are mounted on the outer side of the rotating column, and a plurality of mounting holes are formed in the surface of the second rotating disc. The coarse screen and the fine screen are installed in different installation holes correspondingly, a plurality of containing boxes are installed on the top face of the first rotating disc, a driving assembly used for driving a rotating column to rotate is installed on the top face of the installation table, a supporting rod is installed on the outer side of the installation table, and a transverse plate is installed at the upper end of the supporting rod. A sliding plate is slidably mounted on the outer side of the transverse plate, and a limiting frame is mounted at one end of the sliding plate. The moving assembly can drive the limiting frame to shake, so that potatoes are driven to shake, the potatoes can be rapidly screened, the coarse screen, the fine screen and the empty mounting holes are controlled to move to the position below the limiting frame, and then the potatoes are subjected to multi-stage screening.

The application discloses a method for improving etching uniformity, S1: taking the phase angle in the case of etching eccentricity as a reference phase angle, and obtaining an etching rate distribution diagram of the reference phase angle; S2: setting a plurality of different radio frequency phase angles for etching a wafer in a preset scanning range with a preset step length, and obtaining an etching rate distribution diagram of each radio frequency phase angle; S3: taking the etching rate distribution diagram corresponding to the reference phase angle as a reference, performing difference value operation on the etching rate distribution diagrams of the remaining radio frequency phase angles respectively, and obtaining a difference value rate distribution diagram of each radio frequency phase angle; S4: calculating a range of each difference value rate distribution diagram respectively; S5: selecting a corresponding radio frequency phase angle with a range value greater than a judgment threshold as a candidate radio frequency phase angle; and S6: performing etching test on each candidate radio frequency phase angle, obtaining a corresponding key size distribution diagram, and determining an optimal radio frequency phase angle. The method effectively improves the problem of etching eccentricity, and improves wafer etching uniformity and product yield.

This application discloses a vibration synchronization adjustment transmission mechanism for a biaxial elliptical screen, relating to the field of vibrating screening machine technology. The application includes a support frame, on which a screen box is connected via a side spring damping device. Two vibrating shafts are rotatably mounted on the screen box. It also includes a synchronization transmission mechanism comprising two rotating shafts coaxially mounted on the support frame. This application utilizes two rotatable linkage shafts and two rotating shafts. A motor drives the two rotating shafts to rotate synchronously in opposite directions. The two rotating shafts, through the cooperation of a first pulley, a second pulley, and a transmission belt, first drive the two linkage shafts to rotate synchronously in opposite directions. The two linkage shafts then drive the two vibrating shafts to rotate synchronously in opposite directions via a flexible rubber belt connection. This not only reduces the speed difference between the two vibrating shafts but also prevents the vibration stress generated by the rotation of the two vibrating shafts from being transmitted and affecting the motor, thus making the transmission smoother, ensuring a stable vibration trajectory, and ensuring screening efficiency.

This utility model discloses a convenient high-strength screen fixing device for a square gyratory screen, relating to the field of screening machine technology. It aims to solve the problem that the installation and replacement of screens are often cumbersome, time-consuming, and require operators with certain experience and tools, thus reducing equipment downtime maintenance efficiency. The gyratory screen body has symmetrical bottom beams on its inner wall, and a clamping component is mounted on the bottom beam. The clamping component is slidably connected to the screen. By threading a hemispherical auxiliary component to the bottom of the V-shaped strip of the screen, the contact area and friction are reduced when the screen is inserted between the moving component and the clamping component. This makes the screen installation and removal process smoother, significantly reducing installation difficulty and time, thereby improving equipment downtime maintenance efficiency.

The utility model discloses a fine sand screening device for building construction, and relates to the field of building construction, the fine sand screening device for building construction comprises a spiral conveyer, an outer frame, a vibrating mechanism, a supporting frame and two springs, the supporting frame comprises a lower fixing seat and four stand columns, a transverse support and a guide rod are welded and fixed between the left stand column and the right stand column, the guide rod is arranged above the transverse support, and the lower fixing seat is fixedly connected with the outer frame. According to the sand screening device, the spiral conveyor is adopted, sand enters the spiral conveyor through the feeding hopper, the spiral conveyor automatically conveys the sand to the splayed screening plate to be screened, the screening efficiency is greatly improved, the screening efficiency is improved, and the labor intensity of workers is reduced. A worker only needs to push sand on a sand pile into the feeding hopper, repeated physical actions of lifting and dumping are not needed, the labor intensity of the worker is greatly reduced, meanwhile, the feeding and screening efficiency is improved, and the construction progress is accelerated.

The utility model discloses a cleaning and dust removing device of a screening mechanism for cement production, belongs to the technical field of dust removing and cleaning, and aims to solve the technical problems that in the prior art, cement particles can block screen holes in the cement material screening process, and the cement material screening efficiency is reduced. The screening mechanism cleaning and dust removing device for cement production comprises a screening cylinder, a screening frame is arranged at the top in the screening cylinder, a screen is arranged at the bottom of the screening frame, a plurality of first springs are connected between the screening frame and the inner wall of the screening cylinder, and a vibration motor is assembled on the side wall of the screening frame; a fixing frame is fixed to the top of the screening cylinder, a transmission arm is vertically and rotationally assembled in the middle of the top wall of the fixing frame, and the bottom end of the transmission arm extends into the screening frame and is connected with a batten. According to the cleaning and dust removing device of the screening mechanism for cement production, the screen at the bottom in the screening frame can be cleaned in real time in the cement material vibration screening process through rotation of the brush, cement particles are prevented from blocking screen holes, and the screening efficiency of the cement materials is ensured.