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Coal mine bunker bulkhead anti-adhering method

An anti-adhesion and coal bunker technology, which is applied in the direction of containers, packaging, transportation and packaging, etc., can solve the problems of coal bunker adhesion and blockage, and achieve the effects of low labor intensity, prevention of personal casualties, and no sticking and blockage

Inactive Publication Date: 2013-05-08
XINWEN MINING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem of sticking and clogging of existing coal bunkers, and propose a method for preventing coal bunker walls from coal mines

Method used

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  • Coal mine bunker bulkhead anti-adhering method
  • Coal mine bunker bulkhead anti-adhering method

Examples

Experimental program
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Embodiment Construction

[0010] Taking the concrete support coal bunker under a coal mine as an example, such as figure 1 As shown, the coal bunker is filled with a belt conveyor, and its total height is H = 20000mm. The coal lowering device at the bottom adopts a conical funnel structure with a height of H 1 =4500mm; the height of the upper upright warehouse part is H 2 =15500mm, the diameter is D=5000mm, and the wall thickness is b=400mm; the implementation process of making the vertical section of the upper wall of the coal bunker into a zigzag shape is as follows:

[0011] 1. Manufacture of pouring formwork: Select a common steel formwork with a length of L=2400mm for reformation, and make a model suitable for the zigzag shape of the warehouse wall. Such as figure 2 As shown, determine the tooth profile height h = 200mm, the length of the lower part of the tooth l 1 =2000mm, the length of the upper part of the tooth l 2 =400mm, according to the tooth profile height h and tooth lower part leng...

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Abstract

The invention discloses a coal mine bunker bulkhead anti-adhering method. According to the self gravity prolapse principle of the coal, an upper bulkhead vertical section of a bunker is made into a sawtooth shape so as to enable the inner bulkhead of the bunker to form a certain chamfer; when a certain number of coal is adhered to the bulkhead, an outer tension is formed under the influence of the chamfer; and when the acting force from the gravity on the coal is greater than the adhering force of the coal and the bulkhead, the coal can automatically drop to achieve the anti-adhering effect. The coal mine bunker bulkhead anti-adhering method provided by the invention can be used for not only solving the adhesive blockage at the bottom of the bunker but also enabling the upper part of the bunker to be hard to block by adhering, is small in labor intensity and can be used for preventing the personal injury and death.

Description

technical field [0001] The invention relates to an anti-bonding method for coal storage bunker walls in coal mines. Background technique [0002] At present, domestic coal mines generally adopt cylindrical vertical wall coal bunkers, and the structural types of the lower section of the coal bunker include rectangular cross-section oblique cone type, conical type, rectangular cross-section hyperbolic type, circular cross-section hyperbolic type, etc. Common coal bunkers often have post-bonding and plugging. There are two types of sticking. One is that the wet coal powder is first bonded on the bunker wall, layer by layer, and finally a rat hole is formed in the bunker. Shape, and then coal will cause blockage. The other is that due to the large internal frictional resistance between the wet pulverized coal blocks and the large external frictional resistance between it and the bunker wall, when the coal bunker is full of coal, a similar jam is formed at the coal outlet of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D88/64
Inventor 滕广林
Owner XINWEN MINING GROUP