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On-site mixed emulsion explosive decoupling charge method and side slope forming blasting method

An emulsion explosive, on-site mixing technology, applied in blasting, earthwork drilling, open-pit mining and other directions, can solve the problems of inability to meet the requirements of construction efficiency and economic indicators, high unit price of slope forming blasting, and high labor intensity, etc. Achieve the effect of improving the degree of mechanized charging operation, reducing construction costs and reducing labor intensity

Inactive Publication Date: 2019-10-22
HONGDA MINING IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the finished small-diameter explosive coils are used for pre-splitting blasting and smooth blasting construction. The explosive coils are arranged in sequence and bound on skeleton materials such as bamboo chips, and each explosive coil is connected and detonated through the detonating cord. The processing and processing of blasting equipment The charging process is labor-intensive and inefficient, and the unit price of slope forming blasting per square meter is high, which cannot meet the construction efficiency and economic index requirements of large-scale slope forming control blasting in large open-pit mines

Method used

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  • On-site mixed emulsion explosive decoupling charge method and side slope forming blasting method
  • On-site mixed emulsion explosive decoupling charge method and side slope forming blasting method
  • On-site mixed emulsion explosive decoupling charge method and side slope forming blasting method

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Embodiment 1

[0046] Conventional pre-splitting blasting and smooth blasting generally require uncoupled charge. The finished small-diameter explosive rolls are arranged in sequence and bound to skeleton materials such as bamboo chips before being sent into the blast hole. The manufacturing process of uncoupled charge is complicated and difficult. The efficiency is slow, and the consumption of auxiliary consumables is large; therefore, this embodiment provides a method for mixing emulsion explosives on site without coupling charges.

[0047] Such as figure 1 As shown, the uncoupled charge packaging preparation work involved in the on-site mixed emulsified explosive uncoupled charging method of this embodiment includes the following steps:

[0048] 1) According to the requirement of line charge density for pre-splitting blasting or smooth surface blasting, the calculation formula is q=1 / 4πd 2 ρ 0, select or order a certain diameter of the charge hose; where, d is the diameter of the charge...

Embodiment 2

[0063] In the mining process of large-scale open-pit mines, large-scale slope forming control blasting operations are required, including pre-splitting blasting and smooth blasting, to ensure the safety, stability and beauty of the open-pit mine slopes.

[0064] Slope forming controlled blasting needs to strictly control the charge volume of pre-splitting blastholes or smooth blastholes. Uncoupled charge structures are often used, that is, the charge diameter of the charge section in the blasthole is smaller than the diameter of the blasthole, and the charge in the blasthole is controlled. Extended rice charge. Usually, the finished small-diameter explosive coils are used for pre-splitting blasting and smooth blasting construction. The explosive coils are arranged in sequence and bound on skeleton materials such as bamboo chips, and each explosive coil is connected and detonated through the detonating cord. The processing and processing of blasting equipment The charging proce...

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Abstract

The invention discloses an on-site mixed emulsion explosive decoupling charge method and a side slope forming blasting method. Diameter constraint of a charging hose in a blast hole is used for achieving presplitting blasting or smooth blasting blat hole decoupling charge structures and linear charge density control needs, meanwhile, through the on-site mixed emulsion explosive foaming degree, andthe input amount control of an emulsion substrate, the liner charge density in the blast hole and the charge length adjusting in the blast hole can be achieved, needs of charge parameter fine adjustment according to the actual blasting effect in the subsequent construction can be met, the mechanical degree of charging can be improved, the aim of simply and rapidly making decoupling blasting cartridges and charge blasting construction can be achieved, construction auxiliary consumable items are few, and construction cost is greatly reduced.

Description

technical field [0001] The invention relates to an on-site mixing and uncoupling emulsified explosive charging method and a slope forming blasting method, which belong to the field of engineering blasting. Background technique [0002] In large-scale open-pit mine mining, the blasting construction project is generally large, the blasting operations are frequent, and the scale of each blasting is large. The mechanized charge blasting operation is carried out by on-site mixed explosive vehicles, which has the advantages of high charge efficiency and low labor intensity. On-site mixed emulsified explosive vehicle charging blasting is especially suitable for sunken open-pit mines and hillside open-pit mines in areas with a lot of rain. There is often water in the blasting hole. , large charge, complete coupling of explosives and blastholes, etc., especially suitable for large-scale step blasting operations in open-pit mines. [0003] However, in the process of open-pit mine min...

Claims

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Application Information

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IPC IPC(8): F42D3/00F42D1/10E21C47/00
CPCE21C47/00F42D1/10F42D3/00
Inventor 崔晓荣孙剑廖学燕孙永乾陈宁
Owner HONGDA MINING IND
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