85results about How to "Avoid affecting the screening effect" patented technology

The invention relates to the technical field of screening, in particular to pharmaceutical medicine particle screening equipment. The pharmaceutical medicine particle screening equipment comprises a buffering cavity and a screening cavity. wherein a feeding hopper communicating with the buffering cavity is arranged at the upper end of the buffering cavity, the screening cavity is arranged at the lower end of the buffering cavity, and communicates through a discharging hole, and a sieve plate driven by a first driving assembly to move up and down is arranged on the inner side of the screening cavity, a sieve plate is provided with a plurality of sieve holes used for falling of qualified medicine particles, a guide plate driven by a second driving assembly to move up and down is arranged below the sieve plate, a plurality of pounding rods are arranged at the upper end of the guide plate, one pounding rod is located right under one sieve hole, and when the guide plate moves upwards, the pounding rods upwards move into the sieve holes. According to the pharmaceutical medicine particle screening equipment, the design is novel, an effective flow guide effect is achieved through the arranged guide plate, and meanwhile, the plurality of pounding rods arranged on the guide plate are intermittently inserted into the sieve holes in the sieve plate, so that the sieve holes are prevented from being blocked to influence the screening effect.

The invention relates to the technical field of screening machines, in particular to a working method of a building gravel screening device. The working method of the building gravel screening devicecomprises a work tank; a feeding device is arranged in the middle of the upper end of the work tank; a slide rail and the screening device are symmetrically arranged between the middles of a first partition plate and a second partition plate; U-type frames are symmetrically arranged on the front and rear sides of the outer wall of the screening device; vertical grooves matched with the screening device are symmetrically formed in the first partition plate and the second partition plate; a collection frame is arranged on the right side of the lower portion of the vertical groove in the second partition plate; the side, away from the screening device, of a rotary rod is rotationally connected with a power device through a pin shaft; and a discharging outlet is formed in the middle of the lower end of the work tank. The structural design is reasonable, use is convenient and rapid, gravels can be graded more finely while the gravel screening efficiency is improved, dust generating by screening the gravels can also be adsorbed, and high functionality and practicability are achieved.

The invention relates to an anti-blocking screening device with a dedusting function and for mineral separation. The anti-blocking screening device with the dedusting function and for the mineral separation comprises a main body, a screen barrel and two supports, and further comprises two dust removal mechanisms and two vibration mechanisms, wherein each vibration mechanism comprises a cam, a connection rod, a moving rod, a moving plate, a limiting ring, a motor, a first spring and a fixed rod, and each dust removal mechanism comprises a connection pipe, a dust removal box, a filter net, an air fan, a seal cover, a handle, two fixed plates and two replacement assemblies, and each replacement assembly comprises a fixed block, a support rod and two replacement units. The anti-blocking screening device with the dedusting function and for the mineral separation can perform up-down shaking operation on mineral aggregate in the screen barrel, prevents the mineral aggregate from blocking the screen barrel so as to prevent the mineral aggregate from influencing screening effect when the screen barrel performs screening work, can perform impurity removal and purification work on dust in the main body through the dust removal mechanisms, and prevents the dust from scattering in all directions so as to prevent the dust from influencing surrounding air environment.

The invention discloses a secondary screening device for almonds. The secondary screening device for almonds comprises a screening box, a storage cone barrel is vertically and fixedly installed in thescreening box, and ribbon type stirring blades are fixedly installed on the surface of a stirring shaft and located inside the storage cone barrel; the left side wall of the screening box is providedwith a feed pipe communicating with the interior of the storage cone barrel; an L-shaped discharge baffle transversely penetrates through the lower portion of the storage cone barrel in a horizontalsliding mode; an inclined storage sloping plate is arranged at the bottom of the screening box; and the side wall of the lower right portion of the screening box extends rightwards to form a dischargepipe. The almonds inside the storage cone barrel are rotationally scattered through the ribbon type stirring blades and prevented from blocking the lower end of the storage cone barrel to cause discharge difficulty, an upper screening plate and a lower screening plate move left and right in a reciprocating mode through rotation of an incomplete gear, the almonds falling to the upper screening plate and the lower screening plate can be evenly spread, the almonds of proper sizes can penetrate through the upper screening plate and the lower screening plate, and the screening efficiency is effectively improved.

A small convenient efficient smashing device comprises a machine body. A feeding hopper is arranged in the middle of the top end of the machine body. A smashing chamber is arranged at the upper end of the machine body. A screening chamber is arranged at the lower end of the machine body. A first discharging hopper is arranged in the middle of the bottom end of the machine body. The left side and the right side of the bottom end of the machine body are each provided with a supporting leg. The small convenient efficient smashing device is high in smashing efficiency and smashing fineness, and multi-grade screening can be carried out on smashed materials; and meanwhile, smashing and screening on the materials are completed, operation is easy, use is convenient, and time and labor are saved.

The invention discloses high-efficiency tea leaf screening equipment. The high-efficiency tea leaf screening equipment comprises a base, a vibrating plate, a screening groove and a collecting box; theupper surface of the base is fixedly connected with guide posts; the vibrating plate penetrates through the tops of the guide posts; the vibrating plate is connected with the guide posts in a slidingmanner; the lower surface of the vibrating plate is fixedly connected with a fixed rod; the lower end of the fixed rod is hinged to a screening groove; the lower surface of the vibrating plate is fixedly connected with a screening motor; the upper surface of the vibrating plate is fixedly connected with a two-axis motor; tea leaves to be processed are placed in the screening groove and are driedby utilizing a hot air blower; the screening motor drives the screening groove to swing up and down around the lower end of the fixed rod to raise the tea leaves, which is beneficial to separating impurities in the tea leaves from the tea leaves and improving the screening efficiency; the tea leaves are dispersed in the screening groove by utilizing a partition plate, so that the tea leaves are prevented from being centralized together to affect a screening effect; and the screening groove swing up and down to raise the tea leaves, so that the tea leaves are in full contact with hot air, and the drying effect is improved.

The invention relates to mineral separation anti-blockage screening equipment having the dedusting function. The mineral separation anti-blockage screening equipment comprises a main body, a screeningnet and four support feet and further comprises a dedusting mechanism and a vibrating mechanism. The vibrating mechanism comprises a vibrating block, a beating block, a beating plate, a support shaft, an adjustment rod and a driving assembly. The dedusting mechanism comprises a water tank, an air exhaust assembly and two dedusting assemblies. Each dedusting assembly comprises a connecting pipe, ahose, a connecting box, a suction nozzle, a fixing rod and a power unit. According to the mineral separation anti-blockage screening equipment having the dedusting function, the screening net can vibrate through the vibrating mechanism, and the problem that the screening effect is affected due to the fact that dust on the screening net blocks the screening net is avoided; and by means of the dedusting mechanism, the dedustiong work of the interior of the main body can be conducted, and the problem that the dust is scattered in all directions to affect the air environment is avoided.

The invention discloses an agricultural cereal grain screening device. The agricultural cereal grain screening device comprises an operation box; a motor frame is fixedly mounted at the top of the operation box; a driving motor is inverted on the motor frame; a driving belt wheel is fixedly mounted on the surface of a driving shaft in a sleeving manner; a worm rod is vertically and rotationally arranged on the right side of the driving shaft; a fixed pulley is rotationally arranged at the top in the operation box; a swing plate is rotationally arranged on the inner wall of the right side of the operation box; and an arc limiting support plate slidingly connected with an arc clamping arc plate is fixedly mounted on the inner side wall of the operation box. The agricultural cereal grain screening device is skillful in structure and reasonable in design, achieves a screening effect on cereal grains through clockwise and anticlockwise alternate rotation of a screening semi-spherical groove, prevents blockage of screening holes caused by high centralization of cereal grains, and effectively accelerates the cereal screening speed; and through the screening semi-spherical groove, swing ofthe rotating plate can be realized, so that the speed of the cereal grains falling into the screening semi-spherical groove is slowed down, and influence on the screening effect by excessive accumulation of the cereal grains in the screening semi-spherical groove is prevented.

The invention provides a shell screening device, and belongs to the technical field of shell screening equipment. The shell screening device comprises a device body, a feeding pipe, a filter net, a conveying belt, a guiding mechanism and a weight screening mechanism. An installing cavity is formed in the device body. The feeding pipe is arranged on the top of the device body, and the lower end ofthe feeding pipe communicates with the installing cavity. The filter net is hinged into the installing cavity through a hinge shaft. A vibration motor is fixedly arranged in the installing cavity andfixedly connected with the lower side face of the filter net. The conveying belt is horizontally arranged in the installing cavity, and the left end of the conveying belt is located below the right side edge of the filter net. The guiding mechanism can divide shells on the conveying belt into a plurality of rows, the shells are sequentially moved to the right end of the conveying belt one by one,and the weight screening mechanism can classify the shells moved to the right end of the conveying belt according to the weight. By means of the shell screening device, screening can be conducted according to the weight of the shells, and operation is simple.

The invention discloses a crushing device for coal gangue sorting, and belongs to the field of coal gangue sorting. A crushing device for coal gangue sorting comprises a bottom plate, a crushing mechanism, a screening mechanism, a pushing mechanism, a baffle mechanism and a clamping mechanism. The crushing mechanism is arranged above the bottom plate, the two tooth rollers which synchronously and reversely move are arranged in the crushing mechanism to crush the coal gangue mixture, the screening mechanism is arranged below the box body, and the screening plate which can do reciprocating rectilinear motion is arranged in the screening mechanism. The coal gangue mixture which is not fully crushed is left at the upper end of the sieve plate to realize separation, so that the coal gangue mixture which is not fully crushed is conveniently crushed again subsequently, and the crushing sufficiency is improved; the pushing mechanism is arranged at the upper end of the bottom plate to push out coal gangue mixture which is not fully crushed and left at the upper end of the sieve plate, and the phenomenon that the sieving effect is affected due to the fact that sieve holes in the sieve plate are blocked is avoided.

The invention provides a petroleum drilling fluid screening device. The petroleum drilling fluid screening device comprises a tank, a support and guide plates arranged in the tank. The tank is divided into an upper screening area and a lower fluid collecting area by the guide plates. Vibrating screens are obliquely arranged in the screening area. A stirring device is arranged in the fluid collecting area. Chip outlets are formed in the positions, corresponding to the lower ends of the vibrating screens, of the side wall of the tank. A chip collecting tank corresponding to the chip outlets is arranged on the outer side wall of the tank. A fluid outlet pipe is arranged at the bottom end of the side wall of the tank. The tank is fixedly connected with the supports through elastic components. The petroleum drilling fluid screening device has the advantages that the size is small, the structure is simple, the screening efficiency is high, the screening effect is good, and drilling fluid is effectively prevented from splashing.

The invention provides a vibrating screen for petroleum drilling fluid, which includes a screening box, a liquid collection box arranged at the bottom of the screening box and connected with the screening box, and a bracket provided at the bottom of the liquid collection box; the upper part of the screening box is a Screening area, the lower part is the liquid passing area connected with the screening area, the screening area is a cuboid structure, and the liquid passing area is a downward convex conical structure; the liquid passing area is connected with the liquid collection tank; the screening area is equipped with an inclined The installed vibrating screen, the side wall of the screening box corresponding to the lower end of the vibrating screen is provided with a debris outlet, and the position corresponding to the side wall of the screening box and the debris outlet is provided with a debris collection box. A stirring device is fixed inside the tank, and a liquid outlet pipe connected to the liquid discharge mud pump is provided on the side wall of the liquid collection tank. The invention has the advantages of small volume, simple structure, high screening efficiency and good effect, and effectively prevents drilling fluid from splashing.

The invention discloses household garbage pyrolysis gasification treatment equipment in the technical field of household garbage pyrolysis and gasification treatment. The household garbage pyrolysis gasification treatment equipment comprises a pyrolyzing furnace, the bottom of the pyrolyzing furnace communicates with an air inlet pipe, a fluidized bed is fixedly connected to the inner side wall of the pyrolyzing furnace, and a discharging opening located above the fluidized bed is formed in the right side wall of the pyrolyzing furnace. When household garbage is pyrolyzed every time, a driving motor is used for driving a rotating shaft to rotate, a balancing weight, an arc-shaped rotating plate and an arc-shaped vibration plate are matched to enable a first sieve plate to be tensioned for screening, garbage with different sizes can be separated, and large-particle garbage is located below small-particle garbage and can react with hot air flow in advance. Treated hot air flow continuously rises to treat small-particle garbage, so that the treatment time of large particles is shortened, the treatment efficiency is improved, the household garbage is separated into parts with different sizes, accumulation treatment of a large amount of household garbage is avoided, the pyrolysis efficiency is improved, and generation of toxic and harmful gas is reduced.

The invention relates to screening equipment with a good crushing effect and an anti-blocking function. The screening equipment comprises a main body and four brackets, the main body is internally provided with a crushing mechanism and two unchoking mechanisms, the crushing mechanism comprises a closed assembly and two crushing assemblies, each crushing assembly comprises a first motor, a wire spool, a moving plate, a crushing unit and two driving units, each unchoking mechanism comprises a third motor, a half gear, a moving frame, a vibrating rod and two racks. According to the screening equipment with the good crushing effect and the anti-blocking function, through the crushing mechanism, materials can be crushed, large materials are prevented from blocking on a filter screen to affect the screening effect, through the unchoking mechanisms, the filter screen can be unchoked, and the filter screen is prevented from being blocked to affect the screening effect.

The invention discloses a building sand grading and screening device. The building sand grading and screening device comprises a filtering box; multiple layers of screen plates are obliquely arrangedin the filtering box from top to bottom; beating mechanisms are arranged between the adjacent screen plates; the beating mechanisms comprise L-shaped frames, levers and rubber balls; horizontal partsof the L-shaped frames are perpendicularly connected to the external side wall of the filtering box; vertical parts of the L-shaped frames are hinged to the middle parts of the levers; one ends of thelevers run through the external wall of the filtering box and extend into the filtering box; the rubber ball is arranged at one end, positioned in the filtering box, of the lever; a material inlet isformed in the position, close to the high edge of the uppermost screen plate in the filtering box, at the upper end of the filtering box; a hot air pipeline is arranged at the part, close to the material inlet, on the external side wall of the filtering box; a slide plate is obliquely arranged at the internal bottom end of the filtering box; a vibration motor is arranged under the filtering box;and the vibration motor is connected with the bottom end of the filtering box through a leaf spring. The building sand grading and screening device has the advantages of simple and novel structure, good screening effect, low manufacturing cost and high working efficiency.

The invention discloses an intermittent feeding type sand sieving device for building. The intermittent feeding type sand sieving device comprises a storage cavity and a sieving cavity and is characterized in that the storage cavity is arranged at the upper end of the left side of the sieving cavity and communicated with the sieving cavity through a discharge outlet, a transverse plate is fixedlymounted in the sieving cavity, the inner side of the transverse plate is provided with a circular cavity, a first eccentric wheel is arranged on the inner side of the circular cavity, push rods are symmetrically arranged at the left end and the right end of the first eccentric wheel, fixing parts are mounted at the lower ends of the push rods, the lower ends of the fixing parts are hinged to one ends of the connecting rods, and the other ends of the connecting rods are hinged to the upper end of a sieve plate. The intermittent feeding type sand sieving device has the advantages that the deviceis novel in design, a second eccentric wheel rotates to drive a retaining plate to move vertically in a reciprocating manner to intermittently open the discharge outlet so as to achieve intermittentfeeding, and accordingly the sieving effect can be effectively prevented from being affected by the fact that excessive sand enters the sieving cavity at the same time; the push rods move leftwards and rightwards to drive the sieve plate to swing in a reciprocating manner through the connecting rods, and accordingly the sieving efficiency of the sieve plate is increased, and high practicality is achieved.

The invention discloses a screening and conveying device for solid garbage treatment. The screening and conveying device comprises a conveying device body. The position, close to the rear end, of theouter surface of the top end of the conveying device body is fixedly provided with a hopper. The bottom end of the hopper is fixedly provided with a feeding pipe. A clamping groove is formed in one side of the feeding pipe. The screening and conveying device for solid garbage treatment is provided with a nano screen drum, a conveying belt, a first motor and a second motor, garbage screen surface adhesion can be prevented to a certain degree while solid garbage is screened, meanwhile, a screen can be more conveniently cleaned, screened-out waste can be well conveyed out, and the situation thatthe waste is accumulated, and the screen screening effect is influenced is avoided; and low-speed rotation and high-speed rotation can be effectively combined, different rotation speeds can be used for different kinds of solid garbage, more targeted transportation can be achieved, certain limitation is avoided, and better usage prospects are brought.

The invention discloses a rubber powder vibrating screen which is mainly composed of a rack, a screen box, a screen net and a vibration motor, wherein the screen box is arranged on the rack; the vibration motor is connected with the screen box, and the screen box is driven by the vibration motor to make horizontal straight reciprocating motions; the screen box comprises a vibration cavity and a discharging cavity; the screen net is fixed in the vibration cavity and divides the vibration cavity into at least two layers, namely a feeding layer which is located above the screen net and a discharging layer which is located below the screen net; the upper part of the discharging cavity is connected with the lower part of one side wall in the movement direction of the vibration cavity, and the upper part of the discharging cavity is communicated with the discharging layer of the vibration cavity; and a screen box feeding opening is formed at the upper part of the vibration cavity, and a screen box discharging opening is formed at the lower part of the discharging cavity. The rubber powder vibrating screen can effectively prevent materials from being stacked and plugged in the screen box, and has the characteristics of high screening efficiency and good screening effect.

The invention discloses a green brick mud manufacturing device. The green brick mud manufacturing device comprises a smashing unit, a screening unit, a grinding unit, a conveying unit, a stirring unit and a power unit; a discharging port of the smashing unit corresponds to a feeding port of the screening unit; a discharging port of the screening unit corresponds to a feeding port of the grinding unit; a discharging port of the grinding unit corresponds to a feeding port of the conveying unit; a discharging port of the conveying unit corresponds to a feeding port of the stirring unit; the smashing unit, the screening unit, the grinding unit and the conveying unit are sequentially arranged from top to bottom; and the power output end of the power unit is connected with the power input ends of the smashing unit, the screening unit, the grinding unit, the conveying unit and the stirring unit.

The invention discloses a screening device for calcium powder production. The screening device comprises a shell, the top of the shell is provided with a feeding bin and a negative pressure suction port, the bottom of the feeding bin is in a funnel shape with larger upper portion and smaller lower portion, the lower portion of the feeding bin is provided with a screening mechanism, the bottom of the feeding bin is provided with a discharging mechanism used for discharging calcium powder which does not reach the standard, the screening mechanism comprises a plurality of discharging holes formed in the side face of the lower portion of the feeding bin, each discharging hole is rotationally provided with a screening barrel communicating with the discharging hole through a slewing bearing, screening holes are formed in the screening barrels, spiral blades are arranged on the inner walls of the screening barrels, the upper ends of the spiral blades extend into the feeding bin, blocking plates are arranged at the lower ends of the screening barrels, and fixing shafts are arranged at the bottoms of the blocking plates. According to the screening device for calcium powder production, the multiple synchronously-rotating screening barrels are adopted for screening calcium powder, meanwhile, the screened calcium powder is collected in a centralized mode through negative pressure provided by the negative pressure suction opening, and the calcium powder screening efficiency is greatly improved.

The invention belongs to the technical field of fertilizer processing, and particularly relates to an intelligent screening device for fertilizers. The intelligent screening device comprises a crushing cylinder and a screening cylinder; the crushing cylinder is fixedly connected to the top end of the screening cylinder through a cushioning supporting assembly; an inner cavity of the crushing cylinder is communicated with an inner cavity of the screening cylinder through a blanking pipe; the end face of the top of the crushing cylinder is fixedly connected with a discharging hopper; the inner cavity of the crushing cylinder is provided with a crushing assembly; the bottom of the crushing cylinder is provided with a power output assembly; the power output assembly is connected with the crushing assembly through a transmission assembly; a mounting cavity is arranged in the screening cylinder; and a motor II is fixedly mounted in the mounting cavity. Through cooperation of the motor II, a rotating shaft II, a semi-ring gear, a straight gear, a connecting shaft and a torsional spring, a filter plate I repeatedly rotates by a small angle to achieve low-frequency shaking, the fertilizer screening speed is increased, and the situation that the fertilizer is accumulated on the first filter plate, blockage is caused, and then the screening effect is affected is avoided.