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Deep hole blasting charge structure

A technology of deep hole blasting and charging, which is applied in the field of blasting. It can solve the problems of inconvenient shipping and processing, increase the amount of explosives, and increase operating costs, etc., and achieve the effects of saving production costs, good blasting and cutting effects, and reducing the rate of large pieces.

Active Publication Date: 2020-03-24
HUIZHOU XING LU ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology has a high drilling density, and large rocks often appear at the hole openings and backfilling parts, which is not convenient for shipment and processing, and requires secondary crushing. The high density of blast holes and more drilling will increase the operating cost At the same time, whether it is deep hole blasting or shallow hole blasting, in order to overcome the chassis resistance line, it is necessary to drill holes for ultra-deep treatment. Ultra-deep not only increases the amount of drilling, but also increases the amount of explosives

Method used

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Examples

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Effect test

specific Embodiment 1

[0025] Specific Example 1: See Figure 1 to Figure 4 , in the embodiment of the present invention, a kind of deep hole blasting charge structure, comprises blast hole, and the aperture of described blast hole has packing layer 1, and the depth of packing layer 1 of described blast hole aperture is 25 times of blast hole diameter , the middle of the packing layer 1 is filled with broken drug packs 101 . Along the direction of the depth of the blast hole from top to bottom, it also includes a blasting bag 2, a first charge layer 3, a second charge layer 6 and a hole bottom energy-gathering ring 7, and the blasting bag 2 is filled with There is water or gas.

[0026] The first charge layer 3 includes an adjustable energy-concentrating tube combination device 4 and explosives 5. The adjustable energy-concentrating tube combination device 4 includes two adjustment assemblies 401 and two groups of energy-concentrating tube groups 402 with the same structure. The group 402 is arran...

specific Embodiment 2

[0032] Specific embodiment 2: on the basis of embodiment 1, refer to Figure 5The depth of the packing layer 1 of the blast hole opening is 30 times the diameter of the blast hole, and the adjustable energy-collecting tube group 402 and the device 4 include three adjustment assemblies 401 and two groups of energy-collecting tube groups 402 with the same structure. The energy collecting tube group 402 is composed of three energy collecting tubes 402 - 1 connected together, and the energy collecting tubes 402 - 1 can be connected in series through the adjustment assembly 401 . The wall thickness of the side wall of the energy collecting tube 402-1 is 2.3 mm, and the wall thickness of the arc edge of the energy collecting tube 402-1 is 1.5 mm. The angle formed between the two sidewalls of the energy collecting tube 402-1 is the energy collecting angle α, and the angle of the energy collecting angle α is 90°.

specific Embodiment 3

[0033] Specific Example 3: See Image 6 The difference between this embodiment and Embodiment 1 is that the fastener is a screw 401-3, and the first adjustment belt 401-1-2 and the second adjustment belt 401-2-2 are respectively provided with several threaded holes 404, the first adjustment belt 401-1-2 and the second adjustment belt 401-2-2 are attached in parallel and are fixedly connected by screws 401-3. When assembling, only the first adjustment belt 401-1-2 After the position of the second adjustment belt 401-2-2 is placed at the set position, the first adjustment belt 401-1-2 and the second adjustment belt 401-2-2 are directly connected and fixed by the screw 401-3, and assembled Simple structure and convenient adjustment.

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Abstract

The invention provides a deep hole blasting charge structure. The deep hole blasting charge structure comprises a blast hole. A filling layer is arranged at an orifice of the blast hole. A blasting bag, a first charge layer, a second charge layer and a hole bottom energy gathering ring are sequentially included in the depth direction of the blast hole from top to bottom. The first charge layer comprises an adjustable energy gathering pipe combined structure and an explosive. The adjustable energy gathering pipe combined structure comprises at least one adjusting assembly and two sets of energygathering pipe sets of the same structure. The energy gathering pipe sets are symmetrically arranged in the blast hole and are connected and fixed through the adjusting assemblies. The energy gathering pipe sets are arranged in the adjusting assemblies correspondingly in a sleeved manner, and the space between the energy gathering pipe sets is filled with the explosive. Each energy gathering pipeset comprises at least one energy gathering pipe. The second charge layer is an explosive column. Compared with the prior art, according to the deep hole blasting charge structure, the adjustable energy gathering pipe assembly is adopted by the first charge layer and can be suitable for blast holes of different sizes, the energy gathering pipes are of sector structures, the blasting cutting effect is good, and the crushing range is wide.

Description

technical field [0001] The invention relates to the technical field of blasting, in particular to a charge structure for deep hole blasting. Background technique [0002] Deep hole blasting has the advantages of small drilling volume per unit, low consumption of explosives per unit, high production efficiency, and the convenience of comprehensive mechanized construction for blasting, excavation, and transportation operations. It is widely used in open-pit and underground excavation projects. The existing technology has a high drilling density, and large rocks often appear at the opening of the blasthole and the backfilled part, which is not convenient for shipment and processing, and requires secondary crushing. The high density of blastholes and more drilling will increase the operating cost At the same time, whether it is deep hole blasting or shallow hole blasting, in order to overcome the chassis resistance line, it is necessary to drill ultra-deep holes. Ultra-deep not ...

Claims

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Application Information

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IPC IPC(8): F42D1/08F42D3/04
CPCF42D1/08F42D3/04
Inventor 魏华昌魏磊郝润华石学增苏庆国
Owner HUIZHOU XING LU ENERGY SAVING TECH CO LTD
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