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Brine stemming

A technology of gun mud and salt water, which is applied in the direction of blasting, etc., can solve the problems of water leakage, poor sealing of the bag opening, and difficulty in feeding, etc., and achieve the effects of reducing the probability of ignition, good flame extinguishing effect, and avoiding water leakage

Inactive Publication Date: 2009-05-13
曹怀新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of water blast mud are: (1) the bag mouth is not tightly sealed, and there is water leakage; (2) the bag body is too soft, and it is not easy to feed into the blast hole; (3) the efficiency of eliminating coal dust and gas is low, and after firing There is still a lot of coal dust and gas entering the air

Method used

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  • Brine stemming
  • Brine stemming

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Embodiment Construction

[0011] The shell 1 is a cylindrical plastic tube, and the brine 2 injected into the tube is an alkali metal salt solution. The alkali metal solution is made by mixing fresh water and alkali metal salt. Metal salts are NaCl, KCl, BaCl 2 , CaCO 3 、K 2 CO 3 、Na 2 SO 4 , Experiments have proved that these alkali metal salts can increase the gas ignition temperature from 670°C to 800°C, and inhibit the combustion and explosion of gas. The optimal concentration of alkali metal salts when mixed with fresh water is 30% to 35%.

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Abstract

The invention discloses a salt water stemming. Saline solution is injected into a cylindrical plastic pipe, the mouth of which is sealed and blocked in a heat seal way, which plays a role in inhibiting gas combustion, explosion in the blasting engineering of the coal mine.

Description

Technical field: [0001] The invention relates to a device in blasting engineering, and is mainly suitable for blasting engineering in coal mines with gas and coal dust. Background technique: [0002] At present, water blasting mud is commonly used in coal mine blasting projects. The water foaming mud is a long round bag formed by double-layer film through lamination, heat sealing and cutting. The laminated film that is folded inward at the mouth of the bag is sealed by hydraulic pressure. The disadvantages of water gun mud are: (1) the bag mouth is not tightly sealed, and there is water leakage; (2) the bag body is too soft, and it is not easy to feed into the blast hole; (3) the efficiency of eliminating coal dust and gas is low, and after blasting There is still a lot of coal dust and gas entering the air. Invention content: [0003] In order to overcome the disadvantages of the background technology, the present invention proposes a convenient, fast and efficient brin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/20
Inventor 曹怀新
Owner 曹怀新