12results about How to "Guaranteed screening quality" patented technology

The invention provides a precoated sand coating production screening machine, belongs to the technical field of precoated sand production, and solves the technical problems that an existing screening machine is tedious in screen replacement, high in energy consumption, poor in screening effect and the like. Comprising a rack, an up-down vibration mechanism, a screen mechanism and a screen box mechanism, the screen box mechanism is hinged to the lower portion of the inner side of the rack, a transmission mechanism, a first driving motor and a high-pressure fan are arranged on the upper end face of the rack, an eccentric vibration mechanism is arranged on the side portion of the rack, and a plurality of reset springs are arranged between the left side and the right side of the screen box mechanism and the rack; a turning plate mechanism is arranged on the rear side of the screen box mechanism, a plurality of blower guns are arranged on the inner top of the screen box mechanism, a scattering roller is arranged on the rear side of the interior of the screen box mechanism, and a plurality of scraper mechanisms are arranged on the screen mechanism. The vibrating screen can vibrate up and down, is low in energy consumption, good in vibration effect and capable of vibrating left and right, enables raw materials to be dispersed, is high in screening efficiency, long in screening path, stable in screening quality, convenient to install and capable of being automatically cleaned, and ensures that the working environment is clean.

The utility model discloses screening equipment for biomass particle processing, which belongs to the technical field of particle screening, and adopts the technical scheme that the screening equipment comprises a support frame, a screen is arranged in the support frame in a sliding manner, a self-cleaning component is arranged at the bottom of the screen, an angle adjusting component is arranged at the bottom of the support frame, and the self-cleaning component is arranged in the support frame. The angle adjusting assembly comprises four pin shafts, the pin shafts are connected to the front side and the rear side of the two sides of the supporting frame in a bolted mode, the surfaces of the pin shafts are sleeved with rotating rings, the bottoms of the rotating rings are connected with mounting bases in a bolted mode, and the bottoms of the two mounting bases on the front side are connected with telescopic electric cylinders in a bolted mode. The problems that the screening quality is affected due to the fact that the angle of a screen mesh cannot be freely and accurately adjusted according to different screening requirements, the discharging speed and the screening duration of the screen mesh cannot be controlled, and the screen mesh can adapt to different screening scenes and can conduct effective screening are solved.

The utility model discloses a kind of carbon black granule screening machines, including frame and screening mechanism, frame: its inside front and back both sides are provided with mounting bracket, screening mechanism: it includes sieve tray, screen, adjusting assembly and connecting assembly, the sieve tray is rotationally connected in the inside of mounting bracket, four sieve trays are staggered distribution up and down, the side of sieve tray far from the middle of frame is discharge end, screen is all set in the inside of sieve tray, adjusting assembly is used for the angle adjustment of sieve tray, connecting assembly is used for the connection of frame and mounting bracket, the carbon black granule screening machine, with multiple-stage screening device, by setting screen of different aperture to carry out multiple-stage screening work, the discharge end of screen is located equipment's front and back both sides respectively, avoid the restriction of space, it is convenient to erect external conveying device, angle adjusting device is also provided, the inclination of different screen can be automatically adjusted, can guarantee screening quality without changing amplitude.

The utility model provides a kind of high -efficient screening anti -blocking bar screen, belong to material screening technical field, it includes bracket, bracket is detachably installed with at least two sieve piece units along length direction, sieve piece unit is spaced apart and is provided with at least two long sieve rods along length direction, at least one annular stopper is arranged between any two adjacent long sieve rods, short sieve rod is spaced apart and is provided with at least one annular stopper along its length direction.The utility model has the beneficial effect that it can intercept sheet, needle and other unqualified materials while reducing excessive blocking of qualified materials, improving the flexibility of the screen surface vibration to optimize the anti-blocking performance, reduce material and maintenance costs, and achieve uniform distribution of materials, ensure the screening efficiency and processing capacity stability.

The utility model relates to the technical field of aquaculture, and discloses a fry screening device for aquaculture, which comprises a box body, the inner wall of the box body is connected with a screen I in a sliding manner, the inner wall of the box body is connected with a screen II in a sliding manner, and the outer walls of the screen I and the screen II are fixedly connected with mounting blocks; a hollow block is slidably connected to the inner wall of the mounting block, a handle is slidably connected to the interior of the hollow block, a transmission block is fixedly connected to the outer wall of the handle, a fixing rod is arranged on the upper surface of the transmission block, an L-shaped rod is slidably connected to the outer wall of the fixing rod, and the outer wall of the upper side of the L-shaped rod is slidably connected to the inner wall of the mounting block. According to the screening device disclosed by the utility model, through mutual cooperation of the mounting block, the hollow block, the handle, the transmission block, the spring, the fixed rod, the L-shaped rod and the limiting rod, the screen I and the screen II are quickly mounted and dismounted, so that breeding personnel can conveniently replace aged and deformed screens in time, and therefore, the screening quality is guaranteed.

The utility model relates to the technical field of forage grass seeds, in particular to a forage grass seed screening device, and solves the problems that in the prior art, sundries mixed with the forage grass seeds are adsorbed in the screening device, so that workers need to open the device regularly to maintain and clean residues in the device, and the working efficiency is high. Therefore, the workload of personnel is increased, and the screening operation is influenced to a certain extent. A grass seed screening device comprises a shell, a first filter screen and a second filter screen are arranged in an inner cavity of the shell, a through groove is formed in one side of the shell, and an outer frame is arranged on one side of the through groove. According to the grass seed cleaning device disclosed by the utility model, impurities of residual grass seeds in the device can be conveniently and quickly removed by personnel, the sanitary environment in the device is ensured, the step that the device needs to be manually operated by the personnel during maintenance is reduced, and convenience is brought to users.

This utility model discloses a tea sieving, drying, and refining device, belonging to the technical field of tea refining equipment. It includes a barrel body with a base at its bottom. A hydraulic cylinder and a support rod are rotatably connected to the bottom end of the base. The bottom end of the hydraulic cylinder is rotatably connected to the top of the base, and the bottom end of the support rod is fixedly connected to the top of the base. Two sieves are arranged inside the barrel body, with the aperture of the sieves decreasing sequentially from top to bottom. A vibration assembly for driving the sieves to vibrate is located inside the barrel body. An opening is formed on the side of the barrel body away from the hydraulic cylinder, and a limiting protrusion is provided on the side wall of the opening. A discharge assembly for sealing the opening is fixedly connected to the top of the barrel body. This utility model, through the designed vibration assembly, heating rod, collection trough, and sieves, promotes tea leaf agitation, improves grading and sieving efficiency, shortens drying time, and allows sieving and drying to proceed simultaneously, thereby improving processing efficiency.

The utility model relates to a kind of screening system capable of automatically adjusting cloth range, with: conveyor, material can be conveyed on conveyor;Material collecting box is arranged at the outlet position of conveyor, can collect the material conveyed from conveyor, the lower end of material collecting box is provided with discharge port, electric valve is installed at discharge port;Screening machine is arranged at the discharge port position of material collecting box, screening machine can screen material;Monitoring module is arranged on screening machine, and detection module can obtain the operating information of screening machine when screening machine is screening;Control terminal, conveyor, screening machine, electric valve, monitoring module are all connected with control terminal communication, control terminal can control the operation of conveyor and screening machine, control terminal can receive the operating information obtained by monitoring module, based on the operating information, the load of screening material on screening machine is judged, and the opening and closing of electric valve is adjusted according to the load, so that the load on screening machine is within the preset interval range in controller.

The invention discloses a powder coating rotary screening device, and relates to the technical field of powder coating screening, the powder coating rotary screening device comprises a base, a screening box assembly and a material passing pipe assembly, a first frame body is arranged at the outer end of the top of the base, and the screening box assembly is arranged in the first frame body; the screening box assembly comprises a box body, a rotating shaft seat, a clamping gear, an exhaust paddle, a clamping block, a first through opening, a first communicating bearing seat, a screening frame, a first filter screen, a second through opening, ventilation filter cloth, a tension spring and a driven gear. The feeding port is located in the high position in the second funnel, large impurities and blocks penetrating through the second filter screen cannot suspend due to the too large gravity and fall into the bottom end of the second funnel, through the design of double screening, the screening effect of the equipment can be improved, the size of the second filter screen can be increased as much as possible, and the screening efficiency is improved. In this way, the screening pressure of the second filter screen can be reduced, and therefore the situation that the second funnel is blocked due to too large screening pressure is reduced.

The utility model relates to the technical field of powder coating screening, in particular to a multi-stage powder coating screening device, and aims to solve the technical problems that when the powder coating screening device is used, powder of different sizes needs to be screened in a classified manner, but most of the multi-stage powder coating screening devices are fixed in structure, and the screening efficiency is high. The paint at all levels is inconvenient to take out, a certain time is often consumed, powder is possibly mixed again when the paint is taken out, and the use flexibility of the device is influenced; according to the technical scheme, the multi-stage powder coating screening device comprises a discharging assembly, a lifting assembly, a discharging assembly, a screening assembly and an opening and closing assembly; compared with a traditional powder coating screening device under the conditions that operation is tedious when screened powder is taken out, and the screening quality of the device is affected, the powder coating is taken out in a grading mode, the powder is prevented from being mixed again, the operation difficulty when the powder is taken out is reduced, manpower resources are saved, the screening quality is guaranteed, and the practical value of the device is enhanced.

The utility model discloses a kind of biodegradable material particle screening classification device, it is related to biodegradation technical field, including mounting bracket, the lower side of mounting bracket one side is equipped with driving motor, and the output of driving motor is through mounting bracket one side and is connected with rotating rod, the outside of rotating rod is equipped with driving circular gear, the upper side of mounting bracket inside one side is equipped with mounting rod by bearing, and the outside of mounting rod is equipped with driven circular gear.The utility model by using the existence of movable frame, biodegradable granular material is limited in the inside of movable frame, then by using the drive of servo motor to drive connecting block to move horizontally, so it can drive movable frame whole to move horizontally, since the outside of screening cylinder is provided with the existence of coarse screening hole, middle screening hole and fine screening hole, so it can be in the horizontal movement process of movable frame, continuous classification screening effect is carried out, guarantee the screening efficiency and quality of the device.

According to the flexible material distributing equipment and the screening method, an existing vibration driving mode is replaced with a mode that the liquid medium drives the materials to move forwards, noise of the screening equipment is effectively reduced, damage to the materials can be reduced to the maximum extent through the flowing liquid medium, the damage rate of the materials is reduced, the screening quality is guaranteed, and the screening efficiency is improved. In addition, the surface height of the liquid medium, the height of the anti-overlapping plate and the type of the screening plate can be selected according to parameters such as the density and the volume of the materials, so that the same equipment can be used for screening various different materials, and if the parameters such as the density and the volume of different types of materials are similar, the screening efficiency is improved. And two different materials can be screened by one device.