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Water hole charging device and charging method thereof

A technology of charging and water holes, applied in blasting and other directions, can solve the problem of difficulty in reaching the bottom of the blast hole, and achieve the effects of simple structure, ensuring safety and improving construction efficiency.

Inactive Publication Date: 2019-08-16
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a water hole charging device and its charging method, which is used to solve the problem that the density of the finished No. 2 rock emulsion explosive and the water hole is close to that of water, and it is difficult to reach the bottom of the blast hole when charging

Method used

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  • Water hole charging device and charging method thereof
  • Water hole charging device and charging method thereof

Examples

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Effect test

Embodiment 1

[0017] Example 1: as Figure 1-2 As shown, a device for water hole charging includes a first cylinder 4, a second cylinder 5, cuttings 3, No. 2 rock emulsion explosive 2 and a nylon rope 1, and the second cylinder 5 is sleeved on On the outside of the first cylinder 4, the central axes of the two coincide, and the bottoms of the two are connected, such as image 3 As shown, the top of the first cylinder 4 is sealed and has a strip-shaped hole on the side, and a 15 cm long mouth can be vertically downwards at the side at 5 cm from the top for charging, and the top of the second cylinder 5 is open. ,like Figure 4 As shown, the top of the second cylinder 5 is provided with a plurality of small holes symmetrically, and the nylon rope 1 is fixed. Specifically, four circular holes with a diameter of 1 cm can be evenly opened along the top periphery of the second cylinder 5. The nylon rope 1 Tethered on four round holes, the four symmetrical round holes make the nylon rope 1 more ...

Embodiment 2

[0023] Embodiment 2: In this embodiment, the device of the first specification in Embodiment 1 is used for charge, i.e. d 1 = 32mm, d' 1 =33mm,,d 2 = 45mm, d' 2 =46mm, l=300mm,

[0024] (1) The density of cuttings 3 is generally 2-3g / cm 3 , calculated to take 2g / cm 3 , the volume of cuttings 3 Mass of cuttings 3 m 1 =V 1 ×ρ 岩屑 =440.86g

[0025] (2) The density of No. 2 rock emulsion explosive 2 is generally 0.95-1.30g / cm 3 , calculated to take 0.95g / cm 3 , the mass of explosive m 2 =ρ 炸药 ×πL d 2 / 4=229.09g;

[0026] (3) The total density of the drug pack The density of the original No. 2 rock emulsion explosive 2 is ρ 炸药 =0.95g / cm 3 , it is obvious that ρ>ρ 炸药 , the device obviously increases the density of the finished No. 2 rock emulsion explosive 2.

Embodiment 3

[0027] Embodiment 3: when adopting the second kind of specification device charging in embodiment 1 in the present embodiment, namely d 1 = 35mm, d' 1 =36mm,d 2 = 48mm, d' 2 =49mm, l=300mm, the calculation is as follows:

[0028] (1) The density of cuttings 3 is generally 2-3g / cm 3 , calculated to take 2g / cm 3 , the volume of cuttings 3 Mass of cuttings 3 m 1 =V 1 ×ρ 岩屑 =474.76g

[0029] (2) The density of No. 2 rock emulsion explosive 2 is generally 0.95-1.30g / cm 3 , calculated to take 0.95g / cm 3 , the mass of explosive m 2 =ρ 炸药 ×πL d 2 / 4=274.06g;

[0030] (3) The total density of the drug pack The density of the original No. 2 rock emulsion explosive 2 is ρ 炸药 =0.95g / cm 3 , it is obvious that ρ>ρ 炸药 , this device obviously increases the density of No. 2 rock emulsion explosive 2.

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Abstract

The invention belongs to the field of blasting engineering, and mainly relates to a water hole charging device and a charging method thereof. The device consists of two light, thin and brittle plasticcylinders with different radiuses and the same heights: a first cylinder is embedded in a second cylinder, and the bottoms are connected; a strip opening is vertically formed in the closed side surface of the top of the first cylinder for charging; and a nylon rope is fixed around the top end, communicating with the atmosphere, of the second cylinder. The charging process is as follows: the charging is performed in the first cylinder according to the designed quantity and the calculated filling density; a cavity between the two cylinders is fully filled with fine rock chips; and the rock chips are fed to the bottom of a blasthole through the smooth nylon rope. Through the cartridge bag density increasing method, the condition of difficult sinking of general water hole charging cartridge bags is overcome, the cartridge bags can reach the bottom of the blasthole more quickly and accurately, the construction efficiency is greatly improved, and the device is suitable for deeper water holes.

Description

technical field [0001] The invention belongs to the technical field of blasting engineering, and relates to a water hole charging device and a charging method thereof. Background technique [0002] No. 2 rock emulsion explosive is especially suitable for various projects such as various metal mines, hard rocks, and underground excavation with water because of its advantages such as high detonation velocity, high intensity, and strong workmanship. Due to factors such as weathering in the slope area, the proportion of water holes in the mining area is relatively high, and there are more suspended impurity particles in the water holes, and the density is higher than that of pure water. 0.95~1.30g / cm 3 , which is close to the density of water in the water hole, the charging speed is slow, and the explosives are not easy to sink, resulting in the charge not reaching the bottom or the charge is discontinuous, and the quality of the charge cannot meet the requirements, which will ...

Claims

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Application Information

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IPC IPC(8): F42D3/04F42D1/08
CPCF42D3/04F42D1/08
Inventor 黄永辉王长卓王太福林巳晶吴云龙张智宇
Owner KUNMING UNIV OF SCI & TECH
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