阅读说明：本技术 一种液态二氧化碳致裂岩石的工艺方法 (Process method for cracking rock by liquid carbon dioxide ) 是由 欧玉峰 李友军 王森锋 于 2020-05-25 设计创作，主要内容包括：本发明公开了一种液态二氧化碳致裂岩石的工艺方法,包括以下步骤：S1：爆破管材选取；S2：充装液态二氧化碳；S3：钻孔；S4：埋管填塞；S5：测距及接母线。该液态二氧化碳致裂岩石的工艺方法具有安全性高的特性,二氧化碳既不是易制爆危险化学品也不是爆炸物品,不会产生火焰,在运输、储存、使用过程中十分安全,同时省心省,使用、施工不需要相关资质,特别是在城市“爆破”破岩时,不用向公安机关申请许可,并且施工成本低,特别是在城市控制爆破中,与使用炸药雷管的爆破相比,成本低,特别是随着《反恐怖主义法》的实施,爆破工程的安全管理成本、使用电子雷管的成本会相应增加,而二氧化碳气体破岩的成本反而在持续降低。(The invention discloses a process method for cracking rock by liquid carbon dioxide, which comprises the following steps: s1: selecting a blasting pipe; s2: filling liquid carbon dioxide; s3: drilling; s4: filling the buried pipe; s5: and (4) ranging and connecting a bus. The process method for cracking the rock by the liquid carbon dioxide has the characteristic of high safety, the carbon dioxide is neither easy-to-explode dangerous chemicals nor explosive substances, flame can not be generated, the process is very safe in the transportation, storage and use processes, simultaneously, the worry and the province are saved, related quality is not needed in use and construction, particularly, when the rock is broken by urban blasting, permission does not need to be applied to public security organs, the construction cost is low, particularly, in urban controlled blasting, compared with blasting using explosive detonators, the cost is low, particularly, along with implementation of 'anti-terrorism law', the safety management cost of blasting engineering and the cost of using electronic detonators are correspondingly increased, and the cost of breaking the rock by the carbon dioxide gas is continuously reduced.)

1. A process method for cracking rock by liquid carbon dioxide comprises the following steps:

s1: selecting a blasting pipe;

s2: filling liquid carbon dioxide;

s3: drilling;

s4: filling the buried pipe;

s5: and (4) ranging and connecting a bus.

2. The process method for cracking rock by using liquid carbon dioxide as claimed in claim 1, wherein the process method comprises the following steps: the diameter of the S1 blasting tube is 42nm-110nm, and the length of the S1 blasting tube is 0.5m-1.5 m.

3. The process method for cracking rock by using liquid carbon dioxide as claimed in claim 1, wherein the process method comprises the following steps: the S1 blasting pipe is made of steel.

4. The process method for cracking rock by using liquid carbon dioxide as claimed in claim 1, wherein the process method comprises the following steps: and S2 filling liquid carbon dioxide, filling the liquid carbon dioxide in the blasting tube by using a filling machine, and positioning the blasting tube in a filling state by using a filling frame.

5. The process method for cracking rock by using liquid carbon dioxide as claimed in claim 4, wherein the process method comprises the following steps: the liquid carbon dioxide filled by the filling machine is stored by adopting a gas storage tank, and the filled blasting pipe can be disassembled by adopting a disassembling and assembling machine.

6. The process method for cracking rock by using liquid carbon dioxide as claimed in claim 1, wherein the process method comprises the following steps: and in the S3 drilling, a drilling machine is adopted to drill the rock in the blasting area at fixed points, the hole distance is 3-5 m by 2-4 m, the drilling diameter is 120nm-450nm, and the hole depth is 2.5m-5.5 m.

7. The process method for cracking rock by using liquid carbon dioxide as claimed in claim 1, wherein the process method comprises the following steps: 3 parts of S4 buried pipe filler fine sand: 5 parts of silt: 2 parts of sludge are mixed.

8. The process method for cracking rock by using liquid carbon dioxide as claimed in claim 7, wherein the process method comprises the following steps: k values of fine sand, silt and sludge in the S4 pipe burying filling are respectively 5 x 10^-2、2*10^-3～10^-4、10^-8～10^-10。

9. The process method for cracking rock by using liquid carbon dioxide as claimed in claim 1, wherein the process method comprises the following steps: the S5 distance measurement and bus connection bar adopts a ruler to measure the hole distance, and marks are adopted between two holes.

Technical Field

The invention relates to the technical field of liquid blasting, in particular to a process method for cracking rock by liquid carbon dioxide.

Background

Liquid carbon dioxide refers to the liquefaction of carbon dioxide gas to a liquid form at high pressure and low temperature. Liquid carbon dioxide is a refrigerant and can be used for preserving food and artificial rainfall. The carbon dioxide rock breaking technology is a technology for carrying out rock breaking operation by using carbon dioxide gas (an inert gas) as a 'blasting material', liquid carbon dioxide is filled in a special carbon dioxide blasting tube, then the blasting tube is filled in a blast hole, and a special carbon dioxide 'exploder' is adopted for blasting.

At present, in the construction of buildings, tunnels, roads and mines, rock breaking is performed by blasting except for mechanical (splitting machines, hydraulic hammers and the like) rock breaking. The former work efficiency is low, and the construction progress is slow, and the latter relates to civil explosive article, and the safety risk is great, causes the loss of civil explosive article easily, in case run off to the criminal in hand, constitutes great threat to public safety, takes place great criminal case even easily, and general technique also has simultaneously with high costs, the security performance subalternation problem.

Disclosure of Invention

The invention aims to provide a process method for cracking rock by liquid carbon dioxide, which aims to solve the problem that the rock is cracked by blasting except mechanical (a splitter, a hydraulic hammer and the like) in the construction of buildings, tunnels, roads and mines at present in the prior art. The former work efficiency is low, and the construction progress is slow, and the latter relates to civil explosive article, and the safety risk is great, causes the loss of civil explosive article easily, in case run off to the criminal in hand, constitutes great threat to public safety, takes place great criminal case even easily, and general technique also has simultaneously with high costs, the security performance subalternation problem.

In order to achieve the purpose, the invention provides the following technical scheme: a process method for cracking rock by liquid carbon dioxide comprises the following steps:

s1: selecting a blasting pipe;

s2: filling liquid carbon dioxide;

s3: drilling;

s4: filling the buried pipe;

s5: and (4) ranging and connecting a bus.

Preferably, the diameter of the S1 blasting pipe is in the range of 42nm-110nm, and the length of the blasting pipe is in the range of 0.5m-1.5 m.

Preferably, the S1 blasting pipe is made of steel.

Preferably, the step S2 of filling the liquid carbon dioxide is to fill the liquid carbon dioxide in the blasting tube by using a filling machine, and to position the blasting tube in a filling state by using a filling frame.

Preferably, the liquid carbon dioxide filled by the filling machine is stored by a gas storage tank, and the filled blasting pipe can be disassembled by a disassembling and assembling machine.

Preferably, the S3 drilling is carried out by drilling the rock in the blasting area at fixed points by using a drilling machine, the hole distance is 3-5 m by 2-4 m, the drilling diameter is 120nm-450nm, and the hole depth is 2.5m-5.5 m.

Preferably, the S4 pipe laying filler fine sand is 3 parts: 5 parts of silt: 2 parts of sludge are mixed.

Preferably, the K values of the fine sand, the silt and the sludge in the S4 pipe burying filler are respectively 5 x 10^-2、2*10^-3～10^-4、10^-8～10^-10。

Preferably, the S5 distance measurement and bus bar uses a ruler to measure the hole distance, and marks the space between two holes with a mark.

Compared with the prior art, the invention has the beneficial effects that:

1. when the process method for cracking the rock by using the liquid carbon dioxide is used, the exploder outputs current to excite a heating rod (a heating material) in the activator, the carbon dioxide in the explosion tube is rapidly heated and expanded and is instantly gasified, the pressure is rapidly increased to 100-300 MPa, and the volume is expanded to more than 600 times. When the pressure of the gas is higher than the strength of the shear slice, the high-pressure gas destroys the burst slice (energy release slice) and rushes out from the air leakage hole to act on the hole wall around the burst tube, so as to generate the phenomenon of 'explosion' and split and break the rock.

2. The blasting method has the characteristic of high safety, the carbon dioxide is neither easy-to-explode dangerous chemicals nor explosive substances, flame is not generated, the blasting method is very safe in the transportation, storage and use processes, simultaneously is labor-saving and economical, related qualifications are not needed in use and construction, particularly, when the city is blasted to break rocks, permission is not applied to public security organs, the construction cost is low, particularly, in city control blasting, compared with blasting using explosive detonators, the cost is low, particularly, along with implementation of the anti-terrorism law, the safety management cost of blasting engineering and the cost of using electronic detonators are correspondingly increased, and the cost of breaking rocks by carbon dioxide gas is continuously reduced.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that: a process method for cracking rock by liquid carbon dioxide comprises the following steps:

s1: selecting a blasting pipe;

s2: filling liquid carbon dioxide;

s3: drilling;

s4: filling the buried pipe;

s5: and (4) ranging and connecting a bus.

Preferably, the diameter of the S1 blasting pipe is in the range of 42nm-110nm, and the length of the blasting pipe is in the range of 0.5m-1.5 m.

Preferably, the S1 blasting pipe is made of steel.

Preferably, the step S2 of filling the liquid carbon dioxide is to fill the liquid carbon dioxide in the blasting tube by using a filling machine, and to position the blasting tube in a filling state by using a filling frame.

Preferably, the liquid carbon dioxide filled by the filling machine is stored by a gas storage tank, and the filled blasting pipe can be disassembled by a disassembling and assembling machine.

Preferably, the S3 drilling is carried out by drilling the rock in the blasting area at fixed points by using a drilling machine, the hole distance is 3-5 m by 2-4 m, the drilling diameter is 120nm-450nm, and the hole depth is 2.5m-5.5 m.

Preferably, the S4 pipe laying filler fine sand is 3 parts: 5 parts of silt: 2 parts of sludge are mixed.

Preferably, the K values of the fine sand, the silt and the sludge in the S4 pipe burying filler are respectively 5 x 10^-2、2*10^-3～10^-4、10^-8～10^-10。

Preferably, the S5 distance measurement and bus bar uses a ruler to measure the hole distance, and marks the space between two holes with a mark.