CN111426239A - Process method for cracking rock by liquid carbon dioxide - Google Patents
Process method for cracking rock by liquid carbon dioxide Download PDFInfo
- Publication number
- CN111426239A CN111426239A CN202010450636.1A CN202010450636A CN111426239A CN 111426239 A CN111426239 A CN 111426239A CN 202010450636 A CN202010450636 A CN 202010450636A CN 111426239 A CN111426239 A CN 111426239A
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- China
- Prior art keywords
- carbon dioxide
- process method
- liquid carbon
- blasting
- rock
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Abstract
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.
Description
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.
The first embodiment is as follows:
preferably, the diameter of the S1 blasting pipe is in the range of 70nm-110nm, and the length is in the range of 0.9m-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 drilling of the S3 is to drill the rock in the blasting area at fixed points by using a drilling machine, the hole distance is 2 m by 3m, the drilling diameter is 130nm to 230nm, and the hole depth is 3m to 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.
Example two:
preferably, the diameter of the S1 blasting pipe is in the range of 100nm, and the length of the blasting pipe is in the range of 1.3 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 drilling of S3 is to drill the rock in the blasting area at fixed points by using a drilling machine, wherein the hole distance is 2 meters by 3 meters, the drilling diameter is 150nm, and the hole depth is 4 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.
Example three:
and (3) analyzing the rock breaking cost of carbon dioxide: consumable 1: the cost of the liquid carbon dioxide is 1.2-2 yuan (one bursting tube is filled with the liquid carbon dioxide); consumable 2: the cost of the heating pipe and the shearing sheet (which are a set) is about 27 yuan, one bursting pipe consumes 29 yuan, and one bursting pipe can burst 6-7 square stones, so that the cost of the consumed materials is calculated to be 4.14-4.83 yuan/square, the labor cost, the mechanical cost and the like are not counted, and the application is simple and convenient;
drilling cost:
the cost of the carbon dioxide rock cracking equipment is estimated according to rock cracking pipes with different specifications, and is estimated according to 108mm pipes (the length of the pipes is 1.5 meters or 1.7 meters) of a certain engineering machinery company.
Drilling requirements: the aperture is 130 mm, the depth is 4-6 m, and the distance between the holes is 3 x 3 m.
Drilling cost: the cost of one meter of the drilling machine is about 15 yuan, and 2 yuan/square is calculated.
Consumable cost:
a tube consumable: the cost of adding liquid carbon dioxide into the activator is within 80 yuan, the conservative estimated amount of a fractured rock pipe is 10 yuan (of course, for soft rock, 15-20 yuan is also provided, and the conservative estimation is used for estimating), and the reduction cost is 8 yuan/square;
secondary rock decomposition cost:
the rock with lower hardness is generally decomposed for the second time by using a 200 excavator plus a 165 cannon, wherein the cost of decomposing is 2 yuan/square by using granite (granite is relatively hard rock) and by using a 300-360 excavator plus a 175 cannon.
Wearing parts and labor cost: budget is 4 yuan/square;
comprehensive cost:
drilling (2 yuan) + consumable (8 yuan) + secondary decomposition (2 yuan) + artificial wearing parts (4 yuan) ═ 16 (yuan/square).
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010450636.1A CN111426239A (en) | 2020-05-25 | 2020-05-25 | Process method for cracking rock by liquid carbon dioxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010450636.1A CN111426239A (en) | 2020-05-25 | 2020-05-25 | Process method for cracking rock by liquid carbon dioxide |
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| Publication Number | Publication Date |
|---|---|
| CN111426239A true CN111426239A (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010450636.1A Pending CN111426239A (en) | 2020-05-25 | 2020-05-25 | Process method for cracking rock by liquid carbon dioxide |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877753A (en) * | 2022-05-09 | 2022-08-09 | 广西新港湾工程有限公司 | Underwater carbon dioxide rock breaking pipe and using method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB262941A (en) * | 1925-12-15 | 1926-12-23 | Dent Farrell | Improvements in blasting methods and means |
| CN107063009A (en) * | 2016-08-26 | 2017-08-18 | 中国铁建大桥工程局集团有限公司 | A kind of micro- blasting technology that shakes of subway two-wire longspan tunnel |
| CN107237633A (en) * | 2017-07-26 | 2017-10-10 | 赵东 | Carbon dioxide fracturing device and the method using carbon dioxide fracturing device broken rock |
| CN107941097A (en) * | 2017-11-08 | 2018-04-20 | 中铁十局集团第八工程有限公司 | A kind of process of liquid carbon dioxide fracturing rock |
| CN109813184A (en) * | 2019-03-28 | 2019-05-28 | 三明科飞产气新材料股份有限公司 | A kind of broken rock gas generator and gas-forming agent rock breaking method |
-
2020
- 2020-05-25 CN CN202010450636.1A patent/CN111426239A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB262941A (en) * | 1925-12-15 | 1926-12-23 | Dent Farrell | Improvements in blasting methods and means |
| CN107063009A (en) * | 2016-08-26 | 2017-08-18 | 中国铁建大桥工程局集团有限公司 | A kind of micro- blasting technology that shakes of subway two-wire longspan tunnel |
| CN107237633A (en) * | 2017-07-26 | 2017-10-10 | 赵东 | Carbon dioxide fracturing device and the method using carbon dioxide fracturing device broken rock |
| CN107941097A (en) * | 2017-11-08 | 2018-04-20 | 中铁十局集团第八工程有限公司 | A kind of process of liquid carbon dioxide fracturing rock |
| CN109813184A (en) * | 2019-03-28 | 2019-05-28 | 三明科飞产气新材料股份有限公司 | A kind of broken rock gas generator and gas-forming agent rock breaking method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877753A (en) * | 2022-05-09 | 2022-08-09 | 广西新港湾工程有限公司 | Underwater carbon dioxide rock breaking pipe and using method |
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Application publication date: 20200717 |
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