47results about How to "Sieve evenly" patented technology

The invention belongs to vibrating machines, and particularly relates to a rotary vibrating screen. According to an existing rotary vibrating screen, when a screen mesh is used for sieving a material, the problem that the sieving is not uniform exists; aiming at the problem, the invention provides a rotary vibrating screen. The rotary vibrating screen comprises a material feeding hole, a dustproof cover, a screen frame, a clamp, a screen mesh, material discharging holes, a material returning plate, heavy bobs, a vibrating motor, springs, a pedestal and material baffle plates, wherein the material feeding hole is formed in the top of the dustproof cover; the screen frame is combined with the screen mesh to form a screen layer; the dustproof cover is connected with the screen layer by using the clamp; the material discharging holes are formed in the two sides of the screen layer and are mutually symmetrical; the material returning plate is arranged at the lower end of the screen mesh, and is funnel-shaped; the heavy bobs are arranged at the upper end and the lower end of the vibrating motor respectively, and are rigidly connected with the sieving components; the sieving parts are elastically connected with the vibrating motor and the pedestal by using springs; the material baffle plates are arranged at the positions, which approach the material discharging holes, of the screen mesh. The rotary vibrating screen is convenient and practical; the problem that the sieving of the material is not uniform can be solved quite well.

The invention discloses a discharging device for screening bright firework beads. The discharging device comprises a hopper arranged on a frame, the outlet of the hopper is positioned on the lower part of the side wall of the hopper, and an oblique downward hopper bottom plate is extended to the outlet of the hopper; the hopper bottom plate is butted with the front end of a taking working face, and the rear end of the taking working face is connected with an oblique downward guide trough; and the taking working face is fixedly arranged on the frame, the lower part of the taking working face is fixedly connected with an upper edge bevel of a triangular member, and the lower end of the triangular member is connected with a vertical round driving device. The discharging device can automatically finish timed and quantitative discharging operation of the bright firework beads in a non-squeezing mode, and is skilful in design, high in safety and stable and efficient in work.

The invention relates to the technical field of rice production, and discloses a rice screening device for rice production. The rice screening device comprises a shell, the left side of the shell is fixedly provided with a outer shell, the outer shell is internally and fixedly provided with a first motor and a baffle, an output shaft of the first motor is bolted with a straight rod, the other endof the straight rod penetrates through the baffle and is in bolted connection with a rotary disc, a limiting block is welded to the top of the right side of the rotary disc, a limiting plate is arranged on the right side of the rotary disc, and a limiting groove is formed in the limiting plate. By arranging the shell, the out shell, the first motor, the straight rod, the rotary disc, the limitingblock, the limiting plate, a fixed rod, an arc-shaped gear, a rack plate, a feeding hopper, a second motor, a rotary rod, a stirring rod, a screening net plate and a waste box, the device has the advantages of being high in screening efficiency and uniform in screening, and the problems that an existing rice screening device is low in screening efficiency and uneven in screening are solved.

The invention provides a multi-stage vibrating screening device applicable to coal gangue separation. The device comprises a supporting mechanism, a conveying box, a conveying mechanism, a dischargingmechanism, a feeding mechanism and a transmission mechanism, wherein the discharging mechanism comprises a mounting box and a pulverized coal box; the feeding mechanism, comprising a first screeningnet, a base and a box body, is mounted on the top part of the pulverized coal box; the transmission mechanism comprises second screening nets, connecting plates, a screening frame, a driving plate, aconnecting shaft and a chute; the screening frame is obliquely glidingly connected into the mounting box; half of the screening frame is of a solid structure, and another half of the screening frame is oppositely welded with a plurality of groups of second screening nets and connecting plates. The device is capable of screening coal gangues in a multi-stage manner, and is high in linkage performance; blockage is avoided; and the production efficiency is improved.

The invention discloses a screening machine set which comprises a car frame provided with a vibration screen. A material outlet of the vibration screen is connected with a material distribution hopper, a material outlet of the material distribution hopper is connected with a material outlet belt conveyor, the vibration screen and the material distribution hopper conduct screening on materials in vibration mode and deliver the materials through the material outlet belt conveyor. The screening machine set facilitates delivery of the screened materials by matched use of the vibration screen and the material outlet belt conveyor, and following stacking of finished product materials can be facilitated.

The invention discloses a feeding mechanism for high-purity silicon production with a pretreatment function and a method for using the same. frame, the outer walls of the left and right sides of the circular frame are movably connected with straight plates, the bottom of the straight plate is fixedly connected with the top of the flat plate, the left and right sides of the flat plate are respectively fixedly connected with support plates, and the bottom of the U-shaped frame A screen cloth is installed near the right side, and a discharge pipe is installed near the left side of the bottom of the U-shaped frame, and the bottom end of the discharge pipe runs through the top of the flat plate and extends to the bottom of the flat plate. In the present invention, each The mutual cooperation between the components can realize the rotation and left and right movement of the first grinding part, thereby effectively improving its grinding and pretreatment efficiency, and at the same time, it can drive the swing plate to swing left and right to achieve the purpose of intermittent feeding. Effectively prevent blockage caused by the cylinder.