Buffering rib of rotary drum screen and rotary drum screening machine

A technology of drum screening machine and buffer ribs, which is applied in the direction of filter screen, solid separation, grille, etc., can solve the problems of small working area of ​​screen drum, low material screening amount, high production cost, etc., so as to improve mixing effect and prolong Stirring time and the effect of small shear resistance

Pending Publication Date: 2019-01-29
安徽马钢嘉华新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When sieving materials with high water content or high viscosity, in view of the sieving process existing in the prior art, material adhesion is easy to occur, and the material and the screen are sticky, resulting in blockage of the sieve holes and small working area of ​​the screen cylinder. , low amount of material screening, high production cost and high energy consumption, the present invention provides a drum screen buffer rib and a drum screening machine, in the case of constant working parameters of the drum screening machine, as much as possible to prevent the material from sticking ;Reduce the stickiness of materials on the screen surface to increase the screening capacity and increase the working efficiency of the trommel screen; moreover, it can effectively reduce the engine load and achieve the purpose of energy saving and emission reduction

Method used

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  • Buffering rib of rotary drum screen and rotary drum screening machine
  • Buffering rib of rotary drum screen and rotary drum screening machine
  • Buffering rib of rotary drum screen and rotary drum screening machine

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Buffer rib 1 in the present embodiment, as figure 1 As shown, the first side wall 130 faces the feed end 220 of the screen, and forms a certain angle α with the inner side wall 210 of the screen, and the included angle α is 0°.

[0049] Such as image 3 As shown, the buffer ribs 1 are evenly distributed on the inner wall 210 of the screen, distributed along the inner wall 210 of the screen in a circumferential spiral shape, and arranged in a crosswise dislocation along the inner wall 210 of the screen.

[0050] The working principle of the drum screen buffer rib described in this embodiment in the drum screening machine is as follows:

Embodiment 2

[0052] Further, compared with embodiment 1, the improvement in this embodiment lies in: combining figure 2 as well as image 3 , the front end 111 and the bottom (120) of the buffer rib towards the screen feeding end 220 have a relative height - ΔH 1 , the rear end 112 and the bottom 120 of the buffer rib towards the discharge end 230 of the screen have a relative height of two ΔH 2 , ΔH 1 less than ΔH 2 ;

[0053] The angle α formed by the first side wall 130 and the inner side wall 210 of the screen is preferably 30°.

[0054] The drum screening machine with the above-mentioned buffer ribs 1 welded on the inner wall 210 of the screen, the inner wall of the screen 2 is also coated with a layer of ultra-high molecular polyethylene membrane, the molecular weight is higher than 3 million; and the low end; the screen feed end 220 is located at the high end and is connected to the feed port 420; the screen discharge end 230 is located at the low end and is connected to the c...

Embodiment 3

[0056] Further, compared with Embodiment 2, the improvement in this embodiment lies in that the included angle α formed by the first side wall 130 of the buffer rib 1 and the inner side wall 210 of the screen is preferably 45°.

[0057] The length of the buffer rib 1 is one-tenth of the circumference of the screen 2, and the relative height between the rear end 112 and the bottom 120 is ΔH 2 One-tenth of the diameter of the screen 2.

[0058] combine image 3 The distribution pitch P of the buffer ribs 1 on the inner wall 210 of the screen is 200 mm, and the helix angle β is greater than 0° and less than 90°, preferably 10° in this embodiment.

[0059] The above-mentioned buffer ribs 1 are detachably installed on the inner side wall 210 of the screen of the drum screening machine in this embodiment, and the installation method is as follows Figure 4 Shown, mounted with bolts.

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Abstract

The invention discloses buffering ribs of a rotary drum screen and a rotary drum screening machine and belongs to the field of material screening equipment. Each buffering rib comprises a bottom surface and a first side surface, wherein the bottom surface is matched and connected with the inner side wall of a screen mesh; the first side surface is connected with the bottom surface, the first sidesurface is opposite to the feed end of the screen mesh, and a certain included angle is formed between the first side surface and the inner side wall of the screen mesh; the buffering ribs are uniformly distributed on the inner side wall of the screen mesh, and longitudinal extending directions of the buffering ribs are at certain inclined angles relative to a longitudinal central axis of the screen mesh; and finally, the buffering ribs are uniformly distributed in a circumferential spiral connection state in the screen mesh. According to the buffering ribs disclosed by the invention, materials can be stirred and propelled, the work area of the screen mesh of the rotary drum screening machine is effectively enlarged, and the blocking rate of the screen mesh is greatly reduced, so that thescreening quantity of the rotary drum screening machine is indirectly increased, and the work efficiency is improved. Besides, the rotary drum screening machine disclosed by the invention has the advantages of being simple in structure, reasonable in design and easy to manufacture.

Description

technical field [0001] The invention belongs to the field of material screening equipment, and more specifically relates to a drum screen buffer rib and a drum screen machine. Background technique [0002] The drum screener is a commonly used equipment in the classification and screening of medium and fine materials and particles. It can control the material sorting through the particle size and improve the sorting accuracy. It can be used in various fields such as chemical industry, fertilizer, environmental protection, feed, metallurgy, etc. extremely broad. In the application of conveying medium and fine materials, the application of trommel screen can effectively remove foreign matter larger than the mesh size, and realize the purity of the conveyed materials as raw materials for production. The screening capacity of the trommel screen is an important index to measure its working efficiency and ensure normal operation. Therefore, in order to ensure or even improve the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/22B07B1/46
CPCB07B1/22B07B1/4645
Inventor 夏维民俞能春项军杨炳旺
Owner 安徽马钢嘉华新型建材有限公司
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