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Tamping plug for blasting engineering

A technology of blasting engineering and mud plugs, which is applied in the field of mud plugs, can solve the problems of difficulty in obtaining materials, complicated manufacture of mud plugs, and increased resistance of mud plugs, so as to increase the time for blocking blast holes and reduce explosives Consumption amount, explosive reaction full effect

Active Publication Date: 2016-08-17
鄂尔多斯市磐宏爆破有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the environment of blasting engineering, plugging blastholes has a good effect on improving the blasting effect. Chinese utility model patent CN200420121737.0 discloses a blasting mud plug, which uses detonation stress waves to make blasting mud The plug expands and presses its serrated teeth against the wall of the blast hole, generating friction to increase the resistance of the plug movement, but the force of pushing the plug to the hole is too small compared to the detonation stress wave, and the plugging effect Poor, and the production of clay plugs is complicated, and the production materials are difficult to obtain, resulting in inconvenient use and high cost

Method used

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  • Tamping plug for blasting engineering
  • Tamping plug for blasting engineering
  • Tamping plug for blasting engineering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see figure 2 , adopt the method for plugging blast hole provided by the invention, comprising the following steps:

[0021] (1) drilling to form blast hole 1, after which explosives 2 are loaded into blast hole 1;

[0022] (2) Load the detonator 3 and lead out the detonator leg 6;

[0023] (3) The concave arc portion of the clay plug 4 is inserted into the blast hole against the blast hole;

[0024] (4) Block the taphole clay 5 and compact it.

Embodiment 2

[0026] see image 3 , adopt the method for plugging blast hole provided by the invention, comprising the following steps:

[0027] (1) drilling to form blast hole 1, after which explosives 2 are loaded into blast hole 1;

[0028] (2) Load the detonator 3 and lead out the detonator leg 6;

[0029] (3) The concave arc portion of the first clay plug 4 is inserted into the blast hole against the blast hole;

[0030] (4) plugging the gun mud 5 with a length of 5-8cm;

[0031] (5) The concave arc-shaped portion of the second clay plug 4 is inserted into the blast hole against the blast hole;

[0032] (6) Block the blasthole clay 5 again and compact it.

[0033] This optimization scheme is suitable for occasions with high blasting safety requirements, such as urban demolition blasting and coal mine blasting.

Embodiment 3

[0035] see Figure 4 , adopt the method for plugging blast hole provided by the invention, comprising the following steps:

[0036] (1) drilling to form blast hole 1, after which explosives 2 are loaded into blast hole 1;

[0037] (2) Load the detonator 3 and lead out the detonator leg 6;

[0038] (3) pack into closed water bag 7;

[0039] (4) The concave arc portion of the clay plug 4 is inserted into the blast hole against the blast hole;

[0040] (5) Block the blasthole clay 5 and compact it.

[0041] This optimization scheme is suitable for occasions that require a high concentration of blasting dust, urban demolition blasting, and places where ventilation is unfavorable.

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Abstract

The invention relates to a tamping plug used for blocking a blast hole after the blast hole is filled with an explosive, and belongs to the technical field of blasting engineering. An inner concave arc-shaped part is arranged at the front end of the tamping plug; a cone-shaped part is arranged at the rear end of the tamping plug; the inner concave arc-shaped part has an arc-shaped longitudinal profile; the diameter of the inner concave arc-shaped part is 1-2 cm smaller than that of the blast hole; the maximum diameter of the cone-shaped part is the same as the diameter of a cylindrical section of the inner concave arc-shaped part. The tamping plug for blasting engineering provided by the invention uses indigenous raw materials, adopts materials with stronger shear performance such as plastics and rubber and is manufactured in a die, therefore the manufacture is easy, manufacturing materials are wide in source, the plugging method is simple, more sufficient reaction of the explosive in the blast hole is ensured, more heat is released, the formation amount of poisonous and harmful gases is reduced, the action time of explosion gases is prolonged, the temperature and pressure of the explosion gases for escaping from the free face are reduced, the explosive consumption per unit volume of rock is reduced, air shock waves are reduced, initiation of gas explosion is prevented, the blocking length of the blast hole is reduced, and economic effects are good.

Description

technical field [0001] The invention belongs to the technical field of blasting engineering, and in particular relates to a clay plug used to block a blasthole after the blasthole is filled with explosives. Background technique [0002] In the environment of blasting engineering, plugging blastholes has a good effect on improving the blasting effect. Chinese utility model patent CN200420121737.0 discloses a blasting mud plug, which uses detonation stress waves to make blasting mud The plug expands and presses its serrated teeth against the wall of the blast hole, generating friction to increase the resistance of the plug movement, but the force of pushing the plug to the hole is too small compared to the detonation stress wave, and the plugging effect It is not good, and the production of clay plugs is complicated, and the production materials are difficult to obtain, resulting in inconvenient use and high cost. Contents of the invention [0003] The object of the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/18
CPCF42D1/18
Inventor 尹涛周传波
Owner 鄂尔多斯市磐宏爆破有限公司
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