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Net belt flat return screen and corresponding grain impurity removing method

A mesh belt and grain technology, applied in chemical instruments and methods, sieves, solid separation, etc., can solve the problems of inconvenient operation, large floor space, and inability to remove large impurities, so as to increase penetration rate and improve processing. Ability, the effect of increasing the amount of exercise

Pending Publication Date: 2017-08-11
刘全义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, due to structural reasons, the flat rotary screen cannot remove large impurities. It must be used in conjunction with the chain type initial cleaning screen or the drum initial cleaning screen, which occupies a large area and is inconvenient to operate.

Method used

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  • Net belt flat return screen and corresponding grain impurity removing method
  • Net belt flat return screen and corresponding grain impurity removing method
  • Net belt flat return screen and corresponding grain impurity removing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Mesh belt flat return screen, its composition includes: a screen frame 1 with a grain inlet A, the motor is connected to the sprocket 2 through a transmission mechanism, the shaft of the sprocket is hinged on the screen box 3, and two pairs of the chain The wheels are respectively connected by chains 4, and the screen box 3 is hoisted by the boom 5 or the rocker 5 in the screen frame, so that the material can realize the reciprocating linear motion in the screen frame and make a circular shape through the flat return mechanism. Flat back movement, compounding the movement form of grain spiral forward, a group of metal sieves 6 are arranged in sequence to form a conveyor belt, and driven by the chain 4, the conveyor belt can carry out grain transportation, diffusion, and grain screening, and The metal sieves 6 can rotate with each other, so that the entire conveyor belt can be bent, and an inclined conveyor plate 9 is installed in the space between the upper sieve surface...

Embodiment 2

[0062] In the mesh belt flat return screen described in Example 1, the metal sieve 6 is a punched sieve, and dense sieve holes are arranged on the metal sieve, which can be punched by punching. The metal sieve The sieve hole side length of sheet 6 is 10-30mm, or the diameter is 8-14mm. One side of the metal sieve sheet has a reinforcing edge 61 and an avoiding edge 62; it is effective to avoid when turning and avoid interference. The screen box has a set of idler rollers 63 for the metal sieve plates, respectively supporting the metal screen sheets of the upper layer and the metal screen sheets of the lower layer; or the screen box has a set of chain brackets or supporting wheels 64, which Side lift chain. Described chain 4 also has the transition board 41 that is connected with described metal sieve sheet 6. The bottom of described metal sieve sheet is equipped with vibrator, removes the grain that is plugged in the sieve hole by vibration.

Embodiment 3

[0064] In the mesh belt flat return screen described in embodiment 1 or 2, the metal sieve 6 is a metal mesh with a support frame 65 for rigidity reinforcement, and the side length of the mesh in the metal sieve is 8-24mm. The width is 6-12mm, and the length and width are greater than the long side of the grain to be screened. The metal sieve is connected in sequence by a group of mesh framed metal sieves, or a metal mesh belt formed by an annular mesh.

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Abstract

The invention discloses a net belt flat return screen and a corresponding grain impurity removing method. A plane rotating screen cannot remove large impurities due to the structure factor, and must be matched with a chain precleaner or a roller precleaner for use, so that the treatment capacity is low. The equipment comprises a screen frame (1); a motor is connected with chain wheels (2) through a transmission mechanism; a shaft of the chain wheel is hinged to a screen box (3); two pairs of chain wheels are respectively connected through chains (4); the screen box is lifted in the screen frame; one set of metal screen pieces (6) are arranged as conveying belts, and are driven through the chains; a conveying plate (9) connected with the screen box is mounted between the upper and lower layers of conveying belts; the screen box is connected with a flat return rotating mechanism (10); a grain collecting hopper (11) is mounted below the conveying belts; and the grain collecting hopper is connected with the screen box. The net belt flat return screen is used for removing large, medium and small impurities in grains before warehousing.

Description

[0001] Technical field: [0002] The invention relates to a sorting machine, in particular to a mesh belt impurity removal machine and a method for removing impurities by using the mechanical equipment. [0003] Background technique: [0004] During the working process of the flat rotary screen, the materials fed at the feed port are concentrated, and under the action of the circular motion of the screen body, the flat rotary screen is evenly distributed on the entire width of the screen surface and automatically graded. In this way, the materials with smaller particle size below the material layer are screened quickly, while the materials with larger particle size above move to the discharge end. During the moving process, because there is no stirring and vertical jumping, the smaller particles are always close to the screen surface and can pass through the sieve discharge end at any time. The sieving effect gradually weakens during the movement, so that the particles larger t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/10B07B1/42B07B1/46B07B9/00
CPCB07B1/10B07B1/42B07B1/4609B07B9/00
Inventor 刘全义
Owner 刘全义
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