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Loading method suitable for field mixed loading of explosive and tool used for method

A technology of mixing explosives and explosives on site, which is applied in blasting and other directions, can solve the problems of increased blasting cost, loss of explosives, strong blast impact load, etc., achieve uniform charge in the axial direction of the blast hole, improve utilization rate and blasting operation safety , the effect of reducing damage

Inactive Publication Date: 2012-10-03
GUANGDONG HONGDA BLASTING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a mixed explosive vehicle is used to charge explosives in the broken rock mass, the liquid explosives will leak into the broken rock mass around the blast hole, resulting in the loss of explosives and increasing the cost of blasting; under some special geological conditions, even Concentrated seepage explosive concentration points may be formed in the broken rock mass or hole adjacent to the blast hole, resulting in a blasting accident due to the martyrdom of the seepage explosive during the blasting process
In addition, in order to protect and retain the rock mass, the radial uncoupled charge type is generally used in contour blasting, and the mixed explosive vehicle is used to directly charge the charge. The formed charge column structure is coupled charge along the blast hole radial direction, and the blast impact load is relatively small Strong, great damage to the retained rock mass

Method used

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  • Loading method suitable for field mixed loading of explosive and tool used for method
  • Loading method suitable for field mixed loading of explosive and tool used for method
  • Loading method suitable for field mixed loading of explosive and tool used for method

Examples

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Effect test

Embodiment 1

[0026] Embodiment 1: the charge method in the broken rock mass:

[0027] In a mine slope treatment project, the rock mass in some sections of the slope was broken, and there were 10-30cm open cracks in special sections, which needed to be excavated by blasting. The blasting design borehole is 15.0m deep, the hole diameter is 200mm, the charge length at the bottom of the hole is 5.0m, the charge column diameter is 200mm, and the plugging section is 3.0m long. The mixed explosive vehicle is used to charge the charge. The specific implementation method is as follows:

[0028] In the first step, an explosive molding bag 1 with a diameter of 200 mm and a length of 5.1 m is selected.

[0029] In the second step, the prepared detonating bomb 7 is put into the explosive forming bag 1, and the detonating cord 8 connected with the detonating bomb 7 is drawn out from the injection hole 3 through the inside of the explosive forming bag 1 .

[0030] In the third step, a load-bearing rope ...

Embodiment 2

[0033] Embodiment 2: Charge method of contour blast hole:

[0034] A mine slope treatment project, the contour pre-splitting blasting design drilling depth is 15m, the hole diameter is 200mm, the charge length at the bottom of the hole is 10.0m, the length of the blocking section is 2.0m, and the design charge diameter is 60mm. The way is as follows:

[0035] In the first step, an explosive forming bag 1 with a diameter of 60 mm and a length of 10.1 m is selected.

[0036] In the second step, the prepared detonating bomb 7 is put into the explosive forming bag 1, and the detonating cord 8 connected with the detonating bomb 7 is drawn out from the injection hole 3 through the inside of the explosive forming bag 1 .

[0037] In the third step, the load-bearing rope 4 is tied to the handle of the explosive forming bag 1, and the explosive delivery hose is inserted into the bottom of the explosive forming bag 1 from the delivery hole 3 of the forming bag.

[0038] The fourth ste...

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Abstract

The invention relates to a loading method suitable for field mixed loading of explosive and a tool used for the method. The loading method suitable for the field mixed loading of the explosive comprises the following steps: 1) putting constituted detonated explosive into an explosive forming bag, introducing a detonating fuse connected with the detonated explosive out of the explosive forming bag, and binding a load bearing rope with a load bearing belt of the explosive forming bag; 2) enabling an explosive conveying hose to extend into the bottom of the explosive forming bag from an explosive conveying hole of the explosive forming bag, and fixing the rope and a detonating fuse on the hole of a blasthole by a load bearing rod after the explosive forming bag is taken into place; and 3) starting a mixed loading truck for the explosive, injecting the explosive into the explosive forming bag, removing an antistatic locating rod out of the blasthole when the length of an injected explosive section reaches the requirement of a user, and taking out the explosive conveying hose after the explosive loading amount reaches a designed volume to finish the explosive loading operation of the position. The loading method suitable for the field mixed loading of the explosive can be widely used for loading a fracture rock blasthole and an air interval outline blasthole under various conditions that explosive mixed loading is adopted for ground drilling and blasting, such as mines, traffic, hydroelectric power and the like.

Description

technical field [0001] The invention relates to a charging method of mixed explosives and a tool used in the method, in particular to a charging method suitable for mixing explosives on site and a tool used in the method. Background technique [0002] At present, when a mixed explosives vehicle is used to charge a blast hole, the mixed explosives vehicle directly inputs the explosives into the blast hole to complete the charge. However, when a mixed explosive vehicle is used to charge explosives in the broken rock mass, the liquid explosives will leak into the broken rock mass around the blast hole, resulting in the loss of explosives and increasing the cost of blasting; under some special geological conditions, even Concentrated seepage explosive concentration points may be formed in the broken rock mass or hole adjacent to the blast hole, resulting in blasting accidents due to the martyrdom of the seepage explosive during the blasting process. In addition, in order to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/08F42D3/04
Inventor 郑炳旭卢文波陈明李战军严鹏蔡建德
Owner GUANGDONG HONGDA BLASTING
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