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Water stemming

A water blasting mud and aqueous solution technology, applied in blasting, explosives, etc., can solve the problems of insufficient contact with the blasthole wall, failure to achieve sealing effect, easy deformation and water seepage, etc., to achieve excellent plugging of blastholes and promote cooling , smooth surface effect

Active Publication Date: 2013-04-24
PANZHIHUA HENGWEI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using traditional water blasting mud to seal the blast hole, because the traditional water blasting mud only contains a certain amount of water, it only has a certain effect of cooling and dust reduction
And because the strength and density of the packaging film used in traditional water blasting mud are small, the strength is low, and the elongation is high, the above-mentioned is easy to deform and seep water, and after deformation, it cannot fully contact with the blasthole wall, and it cannot achieve good plugging. function and improve the effect of blasting coal drop, and more importantly, it basically cannot play the role of flame suppression in coal mine blasting operations

Method used

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Examples

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Effect test

Embodiment 1

[0030] Embodiment 1 The present invention only contains the water gun putty of flame suppressant

[0031] Dissolve a certain amount of potassium chloride and sodium chloride in water, and send them to the RCEG-12 Rotaclip packaging machine produced by Dibotai Company in the United States for canning. The outer packaging film 1 adopts a commercially available PE dry composite film to produce water cannons. The aqueous solution of mud and water cannon mud contains 1.5% potassium chloride and 1.5% sodium chloride.

[0032] When the water blasting mud obtained in this example is used in coal mining, after the explosives and detonators are loaded according to the blasting design instructions, three pieces of water blasting mud are loaded into each blast hole, and the hole is blocked after the water blasting mud, mainly using three-component clay Or clay, according to the diameter and length of the blast hole, until it is completely filled.

[0033] Table 1 shows the on-site compar...

Embodiment 2

[0036] Embodiment 2 The present invention contains flame suppressant and foaming agent water gun putty

[0037]Dissolve a certain amount of potassium chloride and sodium chloride in water, then add a certain amount of sodium nitrite to mix, and then send it to the RCEG-12 Rotaclip packaging machine produced by Dibotel Corporation of the United States for canning. The PE dry-type composite membrane sold is produced to obtain water taphole mud, and the aqueous solution of water taphole mud contains 2% potassium chloride, 2% sodium chloride, and 0.37% sodium nitrite.

[0038] When the water blasting mud obtained in this example is used in coal mining, after the explosives and detonators are loaded according to the blasting design instructions, three pieces of water blasting mud are loaded into each blast hole, and the hole is blocked after the water blasting mud, mainly using three-component clay Or clay, according to the diameter and length of the blast hole, until it is complet...

Embodiment 3

[0043] Embodiment 3 The present invention contains flame suppressant, foaming agent and sodium bicarbonate water gun putty

[0044] Dissolve a certain amount of potassium chloride and sodium chloride in water, then add a certain amount of sodium nitrite and sodium bicarbonate to mix, and then send it to the RCEG-12 Rotaclip packaging machine produced by Dibotai Company in the United States for canning. The packaging film 1 adopts commercially available PE dry-type composite film to produce water taphole mud. The aqueous solution of water taphole mud contains 2% potassium chloride, 2% sodium chloride, 0.37% sodium nitrite, and 2% sodium bicarbonate.

[0045] When the water blasting mud obtained in this example is used in coal mining, after the explosives and detonators are loaded according to the blasting design instructions, two pieces of water blasting mud are loaded in each blast hole, and the hole is blocked after the water blasting mud, mainly using three-component clay Or...

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Abstract

The invention discloses water stemming better in cooling, dust fall and flame damping effect. The water stemming comprises an outer package film (1) and liquid (2) sealed in the outer package film. The liquid (2) is water solution comprising, by weight, 0.5-8% of flame damping agent, 0.2-0.7% of foaming agent and 0.3-0.5% of sodium nitrite. The liquid in conventional water stemming is water, so that cooling, dust fall and flame damping are poor in effect. The flame damping agent is added into the water, so that water stemming is better in cooling, dust fall and flame damping effect, and accident occurring rate can be reduced. The cooling, dust fall and flame damping effect can be improved further by adding the foaming agent and / or sodium nitrite into the water, and the water stemming has the advantages of good popularization and application value and capability of large-scale production.

Description

technical field [0001] The invention belongs to the technical field of mining blasting, and in particular relates to a water gun mud with better cooling, dust and flame extinguishing effects. Background technique [0002] At present, the output of coal blast mining accounts for a high proportion of the national coal output, especially in some southern areas with poor geological conditions and small coal mines, blast mining coal mining is still an important coal mining method. [0003] Due to the unevenness of blasting technology, the proportion of blasting accidents and gas and coal dust explosion accidents caused by blasting is still high, which is one of the main factors causing major safety accidents in coal mines. Among them, the accidents caused by poor blast hole plugging accounted for more than 25%. Therefore, it is an important means to solve blasting accidents to study reasonable plugging methods and use new water taphole mud to replace traditional water taphole mud...

Claims

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Application Information

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IPC IPC(8): F42D1/18F42D3/00C06B31/02C06B45/32
CPCF42D1/20F42D1/24F42D1/26
Inventor 黄东平段永健张寿平陈强王成合
Owner PANZHIHUA HENGWEI CHEM
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