Unlock instant, AI-driven research and patent intelligence for your innovation.

Blasting method

A blasting barrel and blasting hole technology, applied in the field of blasting, can solve the problems of difficult management, strong pollution, poor safety, etc., and achieve the effect of low cost

Inactive Publication Date: 2014-07-23
杨世梁
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Blasting coal mining technology is an important method of underground coal mining in coal mines. Its technological process includes drilling, powder charging, blasting mud filling, blasting line and blasting. It is generally suitable for coal mines with complex geological conditions and many faults. , has the advantages of strong adaptability and flexible relocation, but also has the disadvantages of difficult management, poor safety, strong pollution and dumb guns, which brings certain safety hazards to the production and operation of coal mines

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Blasting method
  • Blasting method
  • Blasting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] see Figure 1 ~ Figure 3 , a kind of blasting method that the present invention proposes, concrete steps are as follows:

[0023] 1. Drill 5 blast holes with a depth of 1.5 to 2 m and a diameter of 100 to 400 mm using the drilling rig of the support device 3 on the mining face of the coal mine, and install the support device 3 at the relative position;

[0024] 2. Use the support device 3 to lower the drilling rig of the blasting tube 1 into 5 blasting holes. The short joint 1A of the blasting tube is a seamless steel pipe with a rubber plug on the outside. There is an annular space between the rubber plug and the seamless steel tube. The blasting tube has an aperture of 290mm The length is 1.6m;

[0025] 3. Connect the high-pressure operation pipeline 4a and the high-pressure water inlet pipeline 4b in the detonation operation system 4 to each blasting cylinder 1 through the support manifold system 2 in sequence, and then use the support device 3 to withstand each bla...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of the blasting technique, and relates to a blasting method. Multiple blast holes are drilled downhole, then blasting cartridges are placed in the blast holes and are supported by a supporting manifold system in an abutting mode and are connected with a high-pressure operation pipeline and a high-pressure water inlet pipeline, high-pressure gas and high-pressure liquid are pumped in sequence, after gas pressure reaches a certain value, the high-pressure gas is decompressed quickly, gas explosion is formed in the holes, blast waves are generated, and coal dropping operation is achieved. The two pipelines are connected with the blasting cartridges, and the blasting cartridges can seal the blast holes. A blasting device can be quickly assembled on site, no duds exit, and efficiency and safety are achieved; coal mines cannot be polluted during blasting operation, and environmental friendliness is achieved. The blasting device can be repeatedly used and is low in cost.

Description

technical field [0001] The invention belongs to the technical field of blasting, and in particular relates to a method for implementing coal dropping operations in coal mines by using high-pressure gas blasting. Background technique [0002] Blasting coal mining technology is an important method of underground coal mining in coal mines. Its technological process includes drilling, powder charging, blasting mud filling, blasting line and blasting. It is generally suitable for coal mines with complex geological conditions and many faults. , has the advantages of strong adaptability and flexible relocation, but also has disadvantages such as difficult management, poor safety, strong pollution and dumb guns, which brings certain safety hazards to the production and operation of coal mines. [0003] In summary, in view of the above problems, it is urgent to develop a safe and efficient blasting method. Contents of the invention [0004] The purpose of the present invention is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/00
Inventor 杨世梁
Owner 杨世梁