24results about How to "Reduce screening efficiency" patented technology

The invention belongs to the technical field of papermaking, and particularly relates to a paper pulp pressurized screen and a using method thereof. Comprising an equipment base, a screening tank body is arranged on the equipment base, a screening cavity is formed in the screening tank body and sequentially comprises a heavy slag settling area, an accepted pulp screening area and a light slag floating area from bottom to top in the height direction, the screening cylinder is arranged in the accepted pulp screening area, and the lower portion of the screening cylinder abuts against a first partition plate. The screening drum divides the accepted pulp screening area into a to-be-screened area and a finished screening area, the finished screening area is communicated with the pulp outlet pipe, a screening seam is formed in the side wall of the screening drum, a rotor is rotationally arranged on the inner side of the screening drum, a turbulent flow unit is arranged on the rotor, and the turbulent flow unit can eject pulp on the inner side of the rotor to the screening drum and destroy a pulp layer formed on the side wall of the inner side of the screening drum; and the situation that a relatively stable slurry layer is formed on the inner wall side of the screen cylinder by part of slurry to be screened under the action of centrifugal force, so that new slurry is prevented from being screened through screen seams can be avoided, and the screening efficiency is guaranteed.

The present invention discloses a fully automatic filling device for oily pickles, which relates to the technical field of pickle filling, and comprises a base and a packaging bottle, wherein the side wall of the base is fixedly connected with a filling tank through a bracket; a filling mechanism, wherein the filling mechanism comprises a partition plate sealed and fixedly connected to the inner wall of the filling tank, wherein the partition plate divides the interior of the filling tank into two parts, a first filling chamber and a second filling chamber, wherein a groove is provided on the side wall of the partition plate, wherein an L-shaped plate is slidably connected to the inner wall of the groove, wherein a screen is fixedly connected to the upper end of the L-shaped plate, and wherein the screen is arranged above the second filling chamber. In the present invention, the spiral conveying rod is driven to rotate by driving a motor to convey and fill the oily pickles, thereby realizing automatic filling of the oily pickles, without manual filling, and improving filling efficiency, and using mechanical parts for filling, without the need to set up expensive control equipment and control programs, and is suitable for small and medium-sized enterprises, and has a low failure rate.

This utility model discloses a sand and gravel separator, specifically relating to the field of concrete production technology. It includes a collection box with an auger conveyor installed on one side. The bottom of the auger conveyor is connected to a discharge port. A screening machine is installed at the top of the collection box, with a feed port connected to its top. A cleaning component is installed inside the screening machine, and a feeding mechanism is installed inside the discharge port. The cleaning component includes a baffle plate fixedly connected to the inside of the screening machine. A first filter screen and a second filter screen are fixedly connected inside the screening machine by screws, with the second filter screen installed on one side of the first filter screen. By setting up the cleaning component and the feeding mechanism, this utility model allows for dual screening of sand and gravel by the first and second filter screens, effectively cleaning their surfaces, reducing clogging and improving screening efficiency, maintaining good separation performance, and minimizing sand and gravel accumulation and compaction inside the discharge port, ensuring smooth discharge of sand and gravel.

The invention belongs to the technical field of papermaking, and particularly relates to a paper pulp deslagging device and a deslagging method thereof. Comprising the following steps: a primary screening device screens out primary discharged liquid containing large particles and heavy impurities from slurry fed into the primary screening device to obtain primary slurry subjected to primary screening, and a fine screening device screens out secondary discharged liquid containing fine impurities from the primary slurry subjected to primary screening to obtain screened slurry subjected to fine screening; the secondary screening device is used for carrying out secondary screening on the primary discharged liquid obtained by the primary screening device and the secondary discharged liquid obtained by the fine screening device to obtain tertiary discharged liquid, and the tertiary discharged liquid is put into the fine screening device again for fine screening; the re-screening device is additionally arranged, slurry brought out of discharged liquid of the primary screening device and the fine screening device is repeatedly screened to improve the utilization rate, then the third-time discharged liquid is put into the fine screening device to be screened, it is guaranteed that the slurry obtained after re-screening meets the production requirement, a certain amount of primary slurry is saved, and the utilization rate of the slurry is increased.

The utility model discloses a shavings screening machine for shaving board processing relates to shaving board processing technical field, including frame, spring, sieve, sieve plate, sieve pore and vibrating machine. The utility model discloses the cooperation of frame, spring, sieve, sieve plate, sieve pore, vibrating machine, prevent blocking device, turn over subassembly, rubber boss, drive belt and the sheath of using, the solution existing linear vibrating screen, since the shavings are mostly the flaky structure with certain puffy, its movement in the sieve mainly depends on the overall vibration of sieve, and the upper shavings are easily accumulated with the buffer and have poor mobility, and it is difficult to be fully shaken by sieve plate, leading to this part of shavings mobility can not be effectively screened, further influence screening effect, simultaneously, the edge of flaky shavings is easy to be stuck in sieve pore, in addition, the continuous extrusion of shavings to sieve pore in the vibration process, sieve pore is easily caused to be blocked, not only needs frequent shutdown cleaning for a period of time, also reduced screening efficiency.

The utility model relates to the technical field of light material screening, in particular to a screening and conveying device for light materials, which comprises a support, a feeding hopper is arranged at the top end of the support, a first screen, a second screen and a third screen are respectively arranged at the bottom end of the feeding hopper, one end of the second screen is provided with a connecting seat, and the other end of the second screen is provided with a second screen. A linkage rod is arranged in the middle of the connecting seat, a cam is arranged at the other end of the linkage rod, a rotating shaft is arranged in the middle of the cam, and a driving motor is arranged at one end of the rotating shaft; the screening device has the beneficial effects that through the arrangement of the first screen, the second screen and the third screen, screening is sequentially conducted according to the sequence that material particles are large and small during use, the materials with the large particles are screened out through the first screen, and the materials with the small particles can penetrate through the first screen and then are screened again through the second screen and the third screen; and therefore, the effect of more sufficient screening is achieved, and the effect of more uniform particle size of the screened material is achieved.

The utility model provides efficient Chinese wolfberry impurity screening and separating equipment, and relates to the technical field of Chinese wolfberry separating equipment, the efficient Chinese wolfberry impurity screening and separating equipment comprises a screening box, the lower end face of the screening box is fixedly provided with four walking wheels, the right side of the upper end face of the screening box is provided with a feeding port, and the lower portion of a left side plate of the screening box is provided with a discharging plate. Firstly, an air suction pipe on the surface of a partition plate is externally connected with a fan, the air suction range is enlarged through an umbrella-shaped structure at the lower end of the air suction pipe, light impurities such as leaves are sucked out of a screening box, and meanwhile, a filter plate achieves separation of the Chinese wolfberry and small impurities through filter holes in the surface of the filter plate; the problems that existing screening equipment still has defects in the screening effect, the speed of the Chinese wolfberries entering a screening box cannot be controlled, and if the Chinese wolfberries contain many impurities and the speed of the Chinese wolfberries entering the screening box is high, the impurities in the Chinese wolfberries cannot be cleaned up are solved.

The utility model discloses a horizontal type round automatic screening machine for fractured quartz sand, which belongs to the technical field of quartz sand and comprises a base, supports are fixedly mounted on the left side and the right side of the top of the base respectively, inner cavities of the supports are rotatably connected with rotating cylinders, and a screening cylinder is arranged on the top of the base. Second round discs are fixedly mounted on the left side and the right side of the outer side of the screening barrel correspondingly, connecting blocks are fixedly mounted on the corresponding sides of the second round discs correspondingly, the number of the connecting blocks is four, the connecting blocks are distributed in an annular array, and supporting blocks are fixedly connected to the corresponding sides of the connecting blocks correspondingly; round sleeves are arranged on the corresponding sides of the supporting blocks, and limiting rods are fixedly connected to the sides, away from each other, of the round sleeves. The screening barrel can be conveniently detached to be replaced or cleaned, the screening efficiency is prevented from being reduced due to the fact that the screening barrel is blocked, the structure is simple, the manufacturing cost is low, and the practicability of the device is improved.

The invention relates to the field of crop quality identification, and particularly provides a field rapid evaluation method of sesbania lignin. According to the method, a hydrochloric acid-phloroglucinol solution is used for dyeing the cross section of a sesbania stem growing in the field, and lignin of different sesbania materials is rapidly evaluated in the field. The method can rapidly and efficiently evaluate the lignin content of sesbania, is simple and easy to operate, can be carried out in the field and does not depend on laboratory instruments and equipment, so that the evaluation efficiency of the germplasm resources of sesbania is improved, the screening of new varieties is accelerated, and the method is suitable for industrial popularization and application.

The utility model discloses a finished magnesium powder blanking anti-blocking vibrating screen, which belongs to the technical field of magnesium powder screening equipment, and comprises a base, one end of the base is connected with a plurality of springs, one end of a bottom frame is detachably connected with a screen frame, the upper surface of the bottom frame is connected with a support frame, the upper surface of a sliding seat is provided with a first motor, and a second motor is arranged on the upper surface of the sliding seat. The end, penetrating through the sliding base, of the rotating rod is connected with a brush, through cooperation of the first motor, the sliding base and the brush, the first motor can rotate to provide power, the rotating power is transmitted to the brush through the rotating rod to drive the brush to rotate, and large-particle magnesium powder clamped into the screen frame can be swept out through rotation of the brush. The situation that large particles block holes in the screen frame, small particles cannot penetrate through the holes in the screen frame, and consequently the screening efficiency of the vibrating screen is reduced is avoided, the clamped large-particle magnesium powder is cleaned out through the brush, and the screening efficiency of the vibrating screen is improved.

The invention relates to the technical field of biology, in particular to a reagent and a method for screening a 3-sialyltransferase mutant through a high-throughput flat plate. According to the invention, by adopting a solid flat plate chromogenic screening technology and combining with a pH indicator, efficient screening of 3SL high-yield mutants in a large-scale mutation library is realized. According to the method, the target mutant is quickly identified by directly observing the color change on the flat plate, so that the tedious steps of strain construction, sequencing, transferring, shake-flask culture and the like in the traditional screening process are omitted, and the screening speed and efficiency are remarkably improved. Compared with the prior art, the method has the advantages that the experiment time is greatly shortened, the operation process is simplified, the requirements on human resources and equipment are reduced, and great convenience is provided for screening of the enzyme mutation library. The method has the technical advantages of rapidness, high efficiency and low cost, and is expected to be widely applied to the fields of biomedicine and food science.

The utility model discloses a kind of screening treatment equipment for diatomite raw soil, including machine body, screen cylinder and sieve hole, the screen cylinder is set on the machine body upper end, and with the machine body movable connection, the number of sieve hole is several, and evenly set in the screen cylinder one week surface.The utility model is through the cooperation of machine body, screen cylinder, sieve hole, percussion assembly, rotating seat, beat plate, tension spring, extruding piece, fixed seat, extruding block, cleaning brush component, fixed plate, brush strip, rubber boss and support frame, to some extent, improve or solve the existing screen cylinder screening machine when using, since diatomite has certain viscosity and has not screened impurity, it is easy to adhere on sieve hole in screening process, leading to the blockage of part sieve hole, not only can reduce screening efficiency, make production speed slow down greatly, and need artificial frequent shutdown cleaning sieve hole, increase the problem of labor intensity.

The utility model relates to the technical field of pretreatment sand blasting, and discloses a pretreatment sand blasting device before titanium alloy anodic oxidation, which comprises a pretreatment box, box body supporting legs are fixedly connected to the four corners of the bottom of the pretreatment box, a placing groove is formed in the top of the pretreatment box, and first U-shaped plates are mounted on the outer walls of the front and back box walls of the pretreatment box; and the bottom end of the first U-shaped plate is fixedly connected with a first lower connecting plate. According to the utility model, the first spring sleeve and the second spring sleeve are fixed on the inner walls of the first U-shaped plate and the second U-shaped plate, the first lower connecting plate and the first pretreatment tank are connected through the first bolt, and the second lower connecting plate and the first pretreatment tank are connected through the threaded connection of the nut on the first bolt and the matched use of the second bolt; and through threaded connection of nuts on second bolts, vertical shaking of the first U-shaped plate and the second U-shaped plate can be assisted and limited, and maintenance and replacement of the first pretreatment tank are facilitated.

The invention discloses a conveying device used for plastic processing and provided with a fixing mechanism, and relates to the technical field of plastic fixing transportation, the conveying device used for plastic processing and provided with the fixing mechanism comprises a conveying device, a driving motor is fixedly installed on the left portion of the conveying device, and a discharging box is fixedly installed on the top of the conveying device; according to the device, a servo motor is started to drive a rotating shaft to rotate, the rotating shaft rotates to drive a short rod to rotate, the short rod rotates to make contact with a rotating plate, and the short rod continues to rotate to drive the rotating plate to rotate; the rotating plate rotates to flatten the raw materials on the conveying device, the situation that the raw materials are stacked together to reduce the working efficiency of the conveying device is prevented, meanwhile, the rotating shaft rotates to drive the rotating block to rotate, and the rotating block rotates to make contact with the moving plate.

The present invention discloses a device for removing broken flowers for jasmine tea processing and a process thereof, and relates to the technical field of scented tea processing. The present invention comprises a device body, wherein a large-hole screen plate and a small-hole screen plate are transversely penetrated and slidably installed in the interior of the device body from top to bottom in sequence, and a discharge shell 1 and a discharge shell 2 are fixed in sequence from top to bottom on one side of the device body, and a driving assembly for driving the large-hole screen plate and the small-hole screen plate to shake is arranged on the other side of the device body. The present invention arranges a drop-off device so that the motor 2 and the rotating rod cooperate to drive the partition plate to discharge the jasmine tea raw materials falling between two adjacent partition plates out of the feed box, thereby avoiding the accumulation of jasmine tea raw materials falling on the large-hole screen plate, resulting in uneven distribution of scented tea during the screening process, and resulting in the large-hole screen plate being unable to effectively separate scented teas of different sizes or broken flowers in scented tea.

The utility model provides a raw material screening device for pig feed processing, which comprises a main body mechanism and a cleaning mechanism arranged on one side of the main body mechanism, the main body mechanism comprises a working plate, a conveying belt arranged on one side of the working plate, a troweling plate arranged on one side of the working plate and a fixing rod arranged on one side of the troweling plate, the fixed rod is arranged on one side of the working plate, the collecting plate is arranged on one side of the fixed rod, the collecting groove is formed in the collecting plate, the connecting rod is arranged at one end of one side of the working plate, and the screening rod is arranged at the bottom of the connecting rod. When the raw material collecting device is used, raw materials are conveyed through the conveying belt, the raw materials are flattened through the flattening plate on one side of the fixing rod, meanwhile, redundant raw materials enter the collecting groove in the collecting plate to be collected, and the situation that the follow-up screening efficiency is reduced due to raw material accumulation is reduced. And the screening rod at the bottom of the connecting rod screens caked parts in the raw materials, and the screening capacity is further improved.

The utility model relates to the technical field of mortar preparation, in particular to a vibrating screen for mortar preparation, which comprises a vibrating screen box and two fixing seats, two screen meshes are arranged in the vibrating screen box, and a plurality of mounting plates are arranged in the vibrating screen box; a convex shell is fixedly connected to one side of the mounting plate, and a sliding rod is fixedly connected to the interior of the convex shell; the vibrating screen has the advantages that the bottom of the screen mesh can be knocked through the knocking hammer when the vibrating screen works, the problem that when the screen mesh is blocked during working of the vibrating screen, manual shutdown is needed to clean the blocked screen mesh is solved, the working efficiency of the vibrating screen is improved, and the labor intensity of workers is reduced. And meanwhile, the crushing plate is matched with the vibrating screen to work to crush the caked materials on the screen, the effect of avoiding material waste and cost increase is achieved, the problem that when the vibrating screen works, the caked materials cannot be normally screened, and consequently the materials are wasted is solved, and the practical performance of the vibrating screen is improved.

The utility model relates to the technical field of magnesium chloride particle collection, and discloses a magnesium chloride particle collection device which comprises a base, spring supports are fixedly installed at the four corners of the top of the base, a dust collection cover is fixedly installed at the tops of the four spring supports, two screening covers are installed at the top of the dust collection cover, and screening mechanisms are installed in the screening covers. The screening mechanism comprises screening nets fixedly installed on the bottom sides of the interiors of the screening covers. Under the condition that the vibration motor at the bottom of the dust collection cover is driven, the two sets of screening covers and the dust collection cover can be synchronously driven to vibrate, magnesium chloride particles in the two sets of screening covers and the dust collection cover are screened, meanwhile, under the vibration of the two sets of screening boxes, fine particle impurities can be discharged through filtering holes in the screening net, and the screening effect is good. And multiple groups of vibrating rings distributed at equal intervals are arranged on the bottom sides in the two groups of screening boxes, so that the screening net can be continuously impacted, and the situation that filtering holes in the screening net are clamped by fine particles, and the magnesium chloride particle screening efficiency is reduced is avoided.

The present invention discloses a DEM-MBD coupling simulation model for screening sticky and wet particles using a loose screen. The simulation model is a model that couples the motion trajectory of the screen with the characteristics of the sticky and wet particles. The screen includes five screens connected in sequence: screen one, screen two, screen three, screen four and screen five, and the motion phases of two adjacent screens differ by 180°. The velocity distribution and motion trajectory of the sticky and wet particles during the screening process are simulated. The results show that the loose screen can provide a high speed for the deagglomeration of agglomerated particles and the separation of sticky particles from the screen plate. Therefore, the loose screen can successfully screen the sticky and wet organic fertilizer particles and obtain organic fertilizers in an easily absorbable range.

The present invention discloses a mineral particle screening device, and relates to the technical field of mineral particle screening. The mineral particle screening device comprises a base, a fixing frame is fixedly installed on the top of the base, a motor is fixedly installed on the right side of the fixing frame near the upper end through a fixing rod, a screening mechanism is arranged on the upper end of the base, a discharging mechanism is arranged on the lower end of the base, a rotating baffle is arranged on the outer side of the screening mechanism, and the screening mechanism comprises a rotating shaft, a screening cylinder, a through hole, a toggle member and a fixed cylinder, the rotating shaft is rotatably installed on the upper end of the fixing frame, the right end of the rotating shaft is fixedly connected to the output shaft of the motor, and the screening cylinder is fixedly installed on the outer side of the rotating shaft through a fixing rod. The mineral particle screening device is provided with a screening mechanism and a discharging mechanism, and when the screening device is used, the mineral particles in the screening cylinder are toggled to avoid the mineral particles being stuck in the screen, constantly clogging the screening cylinder, and reducing the screening efficiency of the screening device.

The invention relates to the technical field of reclaimed copper treatment, in particular to a reclaimed copper treatment device for copper product production, which comprises a water tank, a waste copper treatment mechanism is mounted at the top of the water tank, the waste copper treatment mechanism comprises a treatment box, the treatment box is fixedly mounted at the top of the water tank, and a first motor is fixedly mounted at the front part of the treatment box; the first belt wheels are rotatably installed on the front portion of the treatment box, the two first belt wheels are connected through a belt, the first rotating shafts are rotatably installed in an inner cavity of the treatment box, the two first rotating shafts are fixedly connected with the two first belt wheels respectively. Through the arrangement of the waste copper treatment mechanism, waste copper can be further cleaned and cut, various impurities mingled on the surface and inside of the waste copper can be more thoroughly removed through further cleaning, and therefore high-purity regenerated copper can be more easily obtained in the subsequent smelting and refining process.

The utility model belongs to drying equipment technical field, concretely relates to a device that controls powder drying, including the heating cylinder of area heating function, the top right side feed inlet department of heating cylinder is fixedly connected with the feed hopper, the right end middle part of heating cylinder is fixedly connected with drive motor, and the output shaft of drive motor extends to the inside of heating cylinder. The device that controls powder drying of the utility model, the powder that needs drying enters through the feed hopper, and then makes the screw hinge dragon rotation that sets up internally through drive motor drive, so that first sprocket drives second sprocket clockwise rotation through chain, and cooperate with the meshing of two gear, further make two rubbing rollers relative rotation, and carry out rubbing to the powder falling between two guide plates, and the powder of agglomeration falls on the screen together after rubbing, and the rotation of gear, still drive transmission column rotation, and cooperate with the setting of transmission channel and Z type rod, further cooperate the effect of connecting rod, make the screen in the discharge port move back and forth.

The present application provides a multi-stage coal selection system and method for water-washed coal, which relates to the field of water-washed coal, including a frame and a side plate, one side of the frame is fixedly connected with a dust collecting mechanism, the number of the side plates is two, a limiting groove is provided at the bottom of one side of one side of the side plate, a cleaning mechanism is slidably connected inside the limiting groove, and a translation mechanism is fixedly connected to one side of the side plate near the edge. After the coal falls onto the second screen, the third motor starts to drive the rotating plate to rotate, and the rotating plate reciprocates to pull the pull rod when rotating, and the pull rod reciprocates to drive the first screen, the second screen and the third screen to reciprocate and shake, thereby screening the coal, and screening coal of different sizes through the different sizes of sieve holes of the first screen, the second screen and the third screen, so that there is no need to frequently replace the screen, thereby improving the flexibility of coal screening, the screening effect and the screening efficiency.

The utility model provides a kind of fluorine carbon cerium ore tailings re-election device, mainly relates to tailings processing technical field.A kind of fluorine carbon cerium ore tailings re-election device, including shell, guide plate, the shell is close to bottom position and is equipped with conveying cavity, the shell inside is close to left side position and is fixedly set lifting cylinder, conveying cavity, lifting cylinder inside are all rotationally connected with spiral blade, two the spiral blade is all with first driving motor transmission connection, the outer ring of lifting cylinder is close to top position and is fixedly set discharge plate, the shell top is equipped with feed inlet, the shell right side is equipped with discharge port, the guide plate is set in discharge port position.The utility model has the beneficial effect that: by the cooperation of conveying cavity, lifting cylinder and spiral blade, non-magnetic material is continuously backflow to screening process, solve the problem of traditional equipment single screening not thoroughly, greatly improve the separation efficiency and recovery rate of magnetic component in fluorine carbon cerium ore tailings.