Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Process for liquid-state carbon dioxide cracking rocks

A technology of liquid carbon dioxide and process method, applied in the directions of weapon accessories, blasting cylinders, blasting, etc., can solve the problems such as the safety of nearby buildings that affect the normal life of the surrounding people, difficult to handle, and increase the difficulty of construction, so as to facilitate the work of the crusher and reduce the construction cost. , the effect of promoting expansion

Inactive Publication Date: 2018-04-20
中铁十局集团第八工程有限公司
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the other hand, in the process of urban road construction, it is very difficult to deal with the situation that there are a large amount of solid rocks in the underground part. During urban construction, there are often large buildings and crowd gathering places around the construction environment. This complex surrounding environment gives The difficulty of construction is further increased. It is difficult to quickly break a large amount of rocks by simply relying on crushers, and the use of conventional blasting methods will affect the normal life of the surrounding people and the safety of nearby buildings. It is not reasonable to face such a complex project. s solution

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
  • Process for liquid-state carbon dioxide cracking rocks
  • Process for liquid-state carbon dioxide cracking rocks
  • Process for liquid-state carbon dioxide cracking rocks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: A kind of technological method of cracking rock with liquid carbon dioxide, comprises the following steps:

[0041] S1: Detect the rock grade of the blasting object. For the rocks that need to be cracked, generally there are only grade V and grade VI, and this embodiment is grade V;

[0042] S2: Since the rock grade is V grade, the inner diameter of the fracturing tube is 85mm, the distance between the fracturing holes is 3.8m, and the depth of the fracturing holes is 4.2m. 2 The filling amount is 4.2Kg, and the length of the cracking tube is 0.96m;

[0043] S3: Open the air surface required for blasting, then install the dust collector on the drilling rig, and use the down-the-hole drill to open the fracturing hole. Auxiliary fracturing holes are added on both sides of the fracturing hole, and the depth of the auxiliary fracturing hole is 4m;

[0044] S4: Check and clean the drilled fracturing hole, the impurities in the hole have been cleaned up, the m...

Embodiment 2

[0048] Embodiment 2: A kind of technological method of cracking rock with liquid carbon dioxide, comprises the following steps:

[0049] S1: Detect the rock grade of the blasting object. For the rocks that need to be cracked, generally there are only grade V and grade VI, and this embodiment is grade VI;

[0050] S2: Since the rock grade is VI, the inner diameter of the fracturing tube is 120mm, the distance between the fracturing holes is 3.4m, and the depth of the fracturing holes is 4.4m. 2The filling amount is 5.8Kg, and the length of the cracking tube is 1.6m;

[0051] S3: Open the air surface required for blasting, then install the dust collector on the drilling rig, and use the down-the-hole drill to open the fracturing hole. Auxiliary fracturing holes are added on both sides of the fracturing hole, and the depth of the auxiliary fracturing hole is 5m;

[0052] S4: Check and clean the drilled fracturing hole, the impurities in the hole have been cleaned up, the measur...

Embodiment 3

[0056] Embodiment 3: a kind of technological method of cracking rock with liquid carbon dioxide, comprises the following steps:

[0057] S1: Detect the rock grade of the blasting object. For the rocks that need to be cracked, generally there are only grade V and grade VI, and this embodiment is grade VI;

[0058] S2: Since the rock grade is VI, the inner diameter of the fracturing tube is 100mm, the distance between the fracturing holes is 2.6m, and the depth of the fracturing holes is 3.6m. 2 The filling amount is 5.2Kg, and the length of the cracking tube is 1.1m;

[0059] S3: Open the air surface required for blasting, then install the dust collector on the drilling rig, and use the down-the-hole drill to open the fracturing hole. Auxiliary fracturing holes are added on both sides of the fracturing hole, and the depth of the fracturing hole is 4m;

[0060] S4: Check and clean the drilled fracturing hole, the impurities in the hole have been cleaned up, the measured parame...

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

PropertyMeasurementUnit
The inside diameter ofaaaaaaaaaa
Lengthaaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Login to View More

Abstract

The invention discloses a process for liquid-state carbon dioxide cracking rocks. The process comprises the following steps: (S1) rock grades are detected for blasting objects; (S2) inner diameters ofcracking pipes, a filling quantity of liquid-state carbon dioxide, arrangement gaps of cracking holes and drilling depths of the cracking holes are selected; (S3) free faces and the cracking holes needed by blasting are provided; (S4) the drilled cracking holes are checked and cleared if water is in the holes to prevent the pipe flying phenomenon; (S5) cracking pipes are assembled and inflated; (S6) the cracking holes are blocked; the cracking pipes are put in the cracking holes; and the backfill is performed after placement in place; and (S7) the blasting process is performed; the detonationvoltage is 18800 V; and the technical effects of low blasting vibration, low noise, quick blasting of more solid rocks, low influence on surrounding buildings and crowds and shortening of the total construction period are achieved.

Description

technical field [0001] The invention relates to the field of road construction, in particular to a process method for cracking rocks with liquid carbon dioxide. Background technique [0002] The British CARDOX company developed a liquid carbon dioxide phase change fracturing device in the 1950s, which was called the Cardox tube at that time. This equipment is mainly used as a coal cutter in the coal mining face of high-gas mines to replace explosives and increase the lump coal rate. The process of crushing coal is a physical process and will not cause a gas explosion. It has also obtained the certification of the British Safety and Health Council that the equipment is non-explosive. [0003] The existing Chinese patent whose application number is 201410798159.2 can be referred to, which discloses that the present invention discloses a mining method using liquid carbon dioxide blasting to induce caving. During operation, a reusable carbon dioxide blaster is sent into the bla...

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
IPC IPC(8): F42B3/04F42D1/08F42D3/04
CPCF42B3/04F42D1/08F42D3/04
Inventor 于秀干
Owner 中铁十局集团第八工程有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com