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Ore body water pressure blasting system and method

A hydraulic blasting and ore body technology, applied in the field of blasting, can solve problems such as poor blasting effect, achieve the effects of reducing blasting energy transmission loss, reducing strength, and improving energy utilization

Inactive Publication Date: 2017-08-11
MINING DEV & ENVIRONMENTAL MANAGEMENT OF SHAANXI PROVINCIAL LAND ENG CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an ore body hydraulic blasting system and an ore body hydraulic blasting method to solve the problem of poor blasting effect of the existing hydraulic blasting method

Method used

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  • Ore body water pressure blasting system and method
  • Ore body water pressure blasting system and method
  • Ore body water pressure blasting system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] figure 1 It is a schematic structural diagram of the orebody hydraulic blasting system provided in Embodiment 1.

[0036] Such as figure 1 As shown, this embodiment provides a hydraulic blasting system, including: a power unit 1, a first water injection pipeline 21, a second water injection pipeline 22, a blasting pipe 3 and a sealing body 4;

[0037] Wherein, the blasting pipe 3 is arranged in the blasting hole 5 of the ore body, the blasting hole 5 is a drilled hole constructed by a drilling rig in the ore body in advance, and the sealing body 4 is used to seal the blasting hole 5 . The sealing body 4 is a cement powder roll or gun mud, and the sealing body 4 is located at the opening of the blast hole 5. In order to effectively seal the hole with the sealing body 4 and prevent the explosive from rushing out of the hole during blasting, the thickness of the sealing body 4 should be greater than or equal to the blast hole 1 / 3 of the depth of the 5th hole, and less th...

Embodiment 2

[0043] figure 2 A schematic structural diagram of the orebody hydraulic blasting system provided in Example 2. image 3 It is a schematic diagram of the hydraulic blasting effect of the ore body hydraulic blasting system provided in the second embodiment.

[0044] On the basis of the first embodiment above, the present invention also provides another embodiment. Such as Figure 2-3As shown, the hydraulic blasting system also includes at least two first water injection pipelines 21 and second water injection pipelines 22, and the output end of each second water injection pipeline 22 extends into a blast hole 5 respectively, and at least two The input end of the first water injection pipeline 21 is connected with the power unit 1 through the multi-way valve 8 . Similarly, each first water injection pipeline 21 is provided with a high pressure resistant ball valve 6 and a pressure gauge 7 to adjust the water pressure in the corresponding blast hole 5 . Thereby, the effective...

Embodiment 3

[0047] Figure 4 It is a schematic flow chart of the ore body hydraulic blasting method provided in Embodiment 3.

[0048] Such as Figure 4 As shown, the present invention provides a mine hydraulic blasting method. The mine hydraulic blasting method provided by the embodiment of the present invention adopts the ore body hydraulic blasting system provided in the above-mentioned embodiment 1 or embodiment 2 to realize mine hydraulic blasting.

[0049] Specifically, before adopting the ore body hydraulic blasting method for blasting, it is necessary to carry out operation preparation according to the following steps:

[0050] (1) Construct at least one blasting borehole 5, and send the blasting tube 3 filled with explosives 31 and detonating wire 32 into the blasting hole 5, and lead the detonating wire 32 out of the blasting hole 5;

[0051] (2) Connect the power unit 1, the first water injection pipeline 21, and the second water injection pipeline 22 in sequence, and extend ...

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Abstract

The invention provides an ore body water pressure blasting system and method. The ore body water pressure blasting system comprises a power device, a first water injection pipeline, a second water injection pipeline, a blasting pipe and a sealing body. The blasting pipe is arranged in a blasting hole of an ore body, and the blasting hole is sealed by the sealing body. The power device, the first water injection pipeline and the second water injection pipeline are sequentially connected in a sealed manner. The output end of the second water injection pipeline penetrates the sealing body to stretch into the blasting hole. The blasting pipe is filled with explosives, the explosives are connected with a detonating cord, and the detonating cord penetrates the sealing body and is exposed out of the blasting hole. A high pressure resisting ball valve and a pressure meter are arranged on the first water injection pipeline, and the pressure meter is located between the high pressure resisting ball valve and the power device. According to the ore body water pressure blasting system, water in the blasting hole before has certain pressure before blasting, after the explosives are detonated, the energy transfer function of the water is utilized, and blasting energy losses are reduced. Ore body surrounding rock bears the dynamic and static combined loading action, and the blasting effect is enhanced.

Description

technical field [0001] The invention relates to the blasting field, in particular to an ore body hydraulic blasting system and an ore body hydraulic blasting method. Background technique [0002] Blasting is widely used in mine mining, tunnel excavation, urban building blasting demolition and so on. In order to make up for the shortcomings of traditional air medium blasting, people have proposed hydraulic blasting technology. Hydraulic blasting is a technology that places explosives in a certain water area and uses water as an energy transfer medium to transmit explosion energy and pressure to break the surrounding objects to be blasted. It has the advantages of uniform energy transmission, high utilization rate, and can effectively improve the quality of blasting molding, so hydraulic blasting has broad application prospects. [0003] At present, the application of borehole hydraulic blasting in ore mining is seldom, and there is still a lack of large-scale use. The hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D3/04F42D1/00
CPCF42D3/04F42D1/00
Inventor 王曙光李鹏锋刘伟连海波郭启明杨文冰李玏
Owner MINING DEV & ENVIRONMENTAL MANAGEMENT OF SHAANXI PROVINCIAL LAND ENG CONSTR