47results about How to "Sieve evenly" patented technology

The invention discloses a rotary screening machine which is used for grading materials according to particle sizes. The rotary screening machine mainly comprises a machine frame, a screen frame, a screen net, a feeding pipe, a gear motor and a central shaft, wherein the screen net can rotate with the central shaft. The rotary screening machine is mainly characterized in that a feeding screw is placed inside the feeding pipe, screen barrel spoilers are placed on a section, locating inside the screen net, of the central shaft, and both the feeding screw and the central shaft are driven by the gear motor. The screen barrel spoilers face towards the direction of the feeding pipe and are slantly and sequentially installed on the central shaft from top to bottom in a stagger mode. When the feeding screw rotates, the materials are continuously delivered into the screen net along the direction of screwing, and the materials do axial motion and at the same time rotate around the central shaft inside the screen net with the screen barrel spoilers. The rotary screening machine is large in screening energy and screened materials are even. The rotary screening machine is simple and compact in structure and small in floor space.

A sifter comprising: a receiver having a supply chamber; a sieve assembly having a sieving chamber coupled to the supply chamber; a rotator having a rotating shaft laterally arranged to pass through the supply chamber and the sieving chamber; a drum having a circular cross-section and having a larger diameter than the diameter of the rotating shaft, the drum being extended in at least space of the sieving chamber and arranged coaxially with the sieve; a cylindrical sieve located inside the sieving chamber and arranged coaxially with the rotating shaft; a stirring rotor located in an inner area of the sieving chamber inside the sieve comprising a rotating blade attached to the rotating shaft; an extraction member; and an outlet for discharging powder passing through the sieve from the inner area to the outer area.

A sifter comprising: a receiver having a supply chamber; a sieve assembly having a sieving chamber coupled to the supply chamber; a rotor having a rotating shaft laterally arranged to pass through the supply chamber and the sieving chamber; a drum having a circular cross-section and having a larger diameter than the diameter of the rotating shaft, the drum being extended in at least space of the sieving chamber and arranged coaxially with the sieve; a cylindrical sieve located inside the sieving chamber and arranged coaxially with the rotating shaft; a stirring rotor located in an inner area of the sieving chamber inside the sieve comprising a rotating blade attached to the rotating shaft; an extraction member; and an outlet for discharging powder passing through the sieve from the inner area to the outer area.

A powder vibrating screen for ore extraction, comprising a base (1), a cylinder device (2), a lower frame body (3), an upper frame body (4), a feeding device (5), a material pushing device (6), a mesh device (7), a screening device (8), and a pushing device (9); the base (1) being provided thereon with a first bracket (11), a second bracket (12), a third bracket (13), a first support pillar (14), and a second support pillar (15); the cylinder device (2) comprising a first cylinder (21), a first pushing rod (22), a fourth bracket (23), and a fifth bracket (24); the lower frame body (3) being provided thereon with a first support rod (30), a discharging frame (31), a first slant plate (32), a closing block (33), a second slant plate (34), a first filter plate (35), a first curved rod (36), a baffle (38), and a material receiving box (39); the upper frame body (4) being provided thereon with a second curved rod (41), a third cross rod (42), a first connection rod (43), and a first fixing frame (44); the feeding device (5) comprising a hopper (51), a material collection frame (52), and a second vertical rod (53); the material pushing device (6) comprising a first motor (61), a rotation shaft (62), a screw rod (63), a third vertical rod (64), a second fixing frame (65), and a third support pillar (66); and the mesh device (7) comprising a mesh (71), a first magnet (72), and a first vibrator (73). The frequency of toppling can be reduced, reducing the labor intensity of an operator.

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 a method for preparing an expanded powder fireproof coating from perlite. The method comprises a bottom plate, a support frame and a screening device, wherein the support frame is mounted in the middle of the upper end of the bottom plate, a section of the support frame is of a U-shaped structure, and the screening device is mounted in the support frame. The method can solve the problems that when existing equipment is used for screening powder raw materials, a screening effect is poor, screening is uneven, a screen cannot be effectively vibrated, the raw materials cannot make full contact with the screen, the screening efficiency of the raw materials is affected, and when the existing equipment is used for screening the powder raw materials, the screen usually cannot be effectively cleaned, so that large-particle impurities in the raw materials are likely to block meshes of the screen, and subsequent screening of the raw materials is not facilitated. And generally, the screen cannot be effectively cleaned, so that large-particle impurities in the raw materials are easy to block meshes of the screen, and subsequent screening of the raw materials is not facilitated.

A sifter comprising: a receiver having a supply chamber; a sieve assembly having a sieving chamber coupled to the supply chamber; a rotor having a rotating shaft laterally arranged to pass through the supply chamber and the sieving chamber; a drum having a circular cross-section and having a larger diameter than the diameter of the rotating shaft, the drum being extended in at least space of the sieving chamber and arranged coaxially with the sieve; a cylindrical sieve located inside the sieving chamber and arranged coaxially with the rotating shaft; a stirring rotor located in an inner area of the sieving chamber inside the sieve comprising a rotating blade attached to the rotating shaft; an extraction member; and an outlet for discharging powder passing through the sieve from the inner area to the outer area.

The invention relates to a separating collecting device, in particular to a pulverizing split-flow collecting device. The pulverizing split-flow collecting device comprises a freezing pulverizer, a discharge pipe, split-flow pipes and a rotary vibration sieve, wherein one end of the discharge pipe is connected with the freezing pulverizer, the other end of the discharge pipe is connected with one end of each split-flow pipe, the split-flow pipes are evenly arranged on two sides of the discharge pipe, the other end of each split-flow pipe is connected with the rotary vibration pipe, a ventilation door is arranged in the discharge pipe, a dust collecting device is arranged at the top of the rotary vibration sieve, the dust collecting device comprises a cyclone separation device and a first-level collecting pipe which is connected with the cyclone separation device, the first-level collecting pipe is connected with two second-level collecting pipes through a first split-flow pipe, the two second-level collecting pipes are respectively connected with two third-level collecting pipes through a second flow-split pipe, the third-level collecting pipes are connected with a dust removing device, the dust removing device comprises a dust removing pipe and dust removing covers which are connected with the dust removing pipe, and the dust removing covers are evenly distributed on the dust removing device. The pulverizing split-flow collecting device is capable of enabling solids to be evenly sieved, good in separating effect, good in collecting effect and high in safety.

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 discloses an aquatic feed particle powder screening device which comprises a box body, a rotating shaft, a second screening plate, a dust collecting pipe and a cover plate. A feed inletis fixedly formed in the left side of the box body, baffle plates are arranged on the front and back sides of the upper end of a first screening plate, a fixed plate is mounted below a spring, the rotating shaft penetrates into the fixed plate, the second screening plate is located below the first screening plate, a collecting box is arranged below the second screening plate, a supporting seat isarranged below the collecting box, the dust collecting pipe is located at the upper end of the box body, a dust storage tank is mounted at the back end of a sucking pump, a dust collecting hood is mounted on the right side of the sucking pump, the cover plate is located at the lower end of the dust collecting hood, and a conveyor belt is mounted at the lower end of the cover plate. The aquatic feed particle powder screening device can screen particles and detritus of an aquatic feed uniformly, and can collect the dust, so that the powder is collected more cleanly.

The invention discloses a spiral vibrating type classifying screen. The spiral vibrating type classifying screen comprises a feeding hopper, a driving motor and a vibrating screen, and the vibrating screen is divided by a plurality of screen plates into a plurality of sub vibrating screens; a corresponding barrel is connected to the exterior of each sub vibrating screen, and one barrel, one screen plate, one sub vibrating screen and a corresponding center shaft form one screening compartment; and the hole diameters of screen holes of each screening compartments are the same, and the hole diameters of screen holes of the screening compartments are sequentially reduced from top to bottom. By means of the spiral vibrating type classifying screen, the spiral sub vibrating screens and the screen plates are adopted, screen holes are formed in the sub vibrating screens and the screen plates, and the sub vibrating screens and the screen plates are combined. The spiral sub vibrating screens conduct screening while conducting transporting, and screened materials are screened for the first time. When conveyed to the screen plates, the materials are screened for the second time, and the screened materials enter the next screening compartment. The sub vibrating screens and the screen plates both vibrate under the effects of the driving motor, double guarantees are achieved, the rate of leakage of wee materials is decreased, and the screening result is more exquisite.

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 provides Hunan lotus seed screening equipment. The equipment is characterized in that a screening barrel is divided into a first fan-shaped screen, a second fan-shaped screen and a third fan-shaped screen in the circumferential direction, the aperture of the first fan-shaped screen is larger than that of the second fan-shaped screen, the aperture of the second fan-shaped screen is larger than that of the third fan-shaped screen, a first shielding device is arranged at the first fan-shaped screen, the first shielding device selectively shields and exposes screen holes in the first fan-shaped screen, the second fan-shaped screen is provided with a second shielding device, and the second shielding device selectively shields and exposes screen holes in the second fan-shaped screen. In the specific operation practice, by controlling the opening sequence of the first shielding device and the second shielding device and by means of the centrifugal force principle, Hunan lotus seeds in the screening barrel can be screened according to three hole diameter specifications, the working efficiency is high, screening is uniform, good economic benefits and social benefits are achieved, and the screening equipment is suitable for application and popularization.

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.