CN202325628U - Coal-mine underground roadway type coal-seam gas-fracturing equipment - Google Patents
Coal-mine underground roadway type coal-seam gas-fracturing equipment Download PDFInfo
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- CN202325628U CN202325628U CN2011204648782U CN201120464878U CN202325628U CN 202325628 U CN202325628 U CN 202325628U CN 2011204648782 U CN2011204648782 U CN 2011204648782U CN 201120464878 U CN201120464878 U CN 201120464878U CN 202325628 U CN202325628 U CN 202325628U
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Abstract
The utility model discloses coal-mine underground roadway type coal-seam gas-fracturing equipment, relates to the technical field of coal mine collection, in particular to the coal-mine underground roadway type coal-seam gas-fracturing equipment. The coal-mine underground roadway type coal-seam gas-fracturing equipment is characterized in that an underground coal body (5) is connected with one end of each of a plurality of high-pressure fracturing pumps (4) by a high/low-pressure manifold (6); the other ends of the high-pressure fracturing pumps (4) are connected with a fracturing-liquid blending sand mixer (2) by another high/low-pressure manifold (6); one end of the fracturing-liquid blending sand mixer (2) is connected with a plurality of liquid storage tanks (1) by another high/low-pressure manifold (6); and the low end of the fracturing-liquid blending sand mixer (2) is connected with a control monitoring device (3). The coal-mine underground roadway type coal-seam gas-fracturing equipment has the advantages that the coal seam is fractured, so that the permeability of the coal seam can be improved, the rock burst at the fractured area of the coal body is reduced, and the danger of coal-gas outburst and rock burst on a working face is reduced.
Description
Technical field:
The utility model relates to acquisition technique field, colliery, is specifically related to laneway type coal-bed gas fracturing unit under the coal mine.
Background technology:
Coal is the main body energy and the important source material of China, in national economy, has important strategic position.Coal accounts for respectively about 76.4% and 69.5% in China's primary energy production and consumption structure, and consumption of coal total amount in recent years is always in rising trend.Safety in production is the top priority of coal industry development, and gas control then is the most important thing of safety of coal mines.China's condition of coal seam occurrence is complicated and changeable, and gas disaster (gas explosion, coal and gas outstanding etc.) accident happens occasionally.Particularly closely during the last ten years, the increasing of mining depth makes the coal mining geology condition more become complicated, and the difficulty that causes administering natural calamities such as gas increases.
Because the most of gas permeability of coal seam of China are poor, anxiety is taken in digging in addition, is a difficult problem that needs to be resolved hurrily so improve the rate of taking out in advance with reducing the phase of taking out in advance always.At present, the prominent coal seam zone extinction of domestic single soft, hypotonic high technology mainly takes work plane along layer boring, the long drilled holes mash gas extraction that intersects, and requires to take out the phase in advance more than half a year; But because the coal seam poor permeability, boring gas drainage under suction flux depression is very fast, and the severe outburst coal degradation period has only tens hours, and extraction difficulty up to standard is very big, and extraction concentration is low, and mash gas extraction is difficult to reach the requirement of safety in production and utilization.It is reported that China most existing colliery belongs to coal and gas outburst mine, highly gassy mine, outstanding, the highly gassy mine accounting is heavy by nearly 50%.And high prominent mine is in the majority with single coal seam, does not generally possess exploitation topping condition.Although take multiple extraction measure, the extraction rate can only reach about 35% at present, and is that have even lower, fundamentally solves gas and threatens the shortage effective technical means.
Safety in production is the top priority of coal industry development, and gas control then is the most important thing of safety of coal mines.China's condition of coal seam occurrence is complicated and changeable, and gas disaster (gas explosion, coal and gas outstanding etc.) accident happens occasionally.Particularly closely during the last ten years, the increasing of mining depth makes the coal mining geology condition more become complicated, and the difficulty that causes the colliery to administer natural calamities such as gas increases.
The utility model content:
The purpose of the utility model provides laneway type coal-bed gas fracturing unit under the coal mine; It carries out pressure break to the coal seam; Can improve the coal seam permeability, reduce coal body fracture zone bump, reduction work plane generation coal and gas are given prominence to the danger with bump.
In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises fluid reservoir 1, fracturing fluid be mixed mixer 2, control supervising device 3, high pressure fracturing pump 4, down-hole coal body 5 and high-low pressure manifold 6; Down-hole coal body 5 is connected with an end of several high pressure fracturing pumps 4 through high-low pressure manifold 6; The other end of several high pressure fracturing pumps 4 is connected through high-low pressure manifold 6 and the fracturing fluid mixer 2 that is mixed; A be mixed end of mixer 2 of fracturing fluid is connected with several fluid reservoirs 1 through high-low pressure manifold 6, and supervising device 3 is controlled in the fracturing fluid mixer 2 low sides connection that is mixed.
Described fluid reservoir 1 can connect each liquid storage pipe through pipeline as required to be combined, and prepares for large-scale construction provides liquid.
Described fracturing fluid is mixed mixer 2 mainly by dosing equipment, mixing sand tank, and suction pump, pump is stirred in circulation, and device such as excavationg pump is formed.
Described control supervising device 3 is used for the startup of equipment, the control of stopping, and monitoring pressure, flow, mulling such as compares at parameter.
Described high pressure fracturing pump 4 mainly is made up of drive motors, torque-converters, high-pressure plunger pump, and parameter is: maximum pressure 50MPa, single pump discharge capacity 1.5m3/min also can carry out customized as required.
The utility model is mainly used in the improvement work of the working face of coal seam of coal and gas outburst danger, through this equipment pressure break is carried out in the coal seam, can improve the coal seam permeability; Reduce coal body fracture zone bump, reduction work plane generation coal and gas are given prominence to the danger with bump, simultaneously; The coal seam is by after moistening; Reduced the coal dust generation,, can reduce the temperature in the coal body of coal seam owing to be injected with a large amount of water; Prevent spontaneous combustion of coal seam, suppress the spontaneous combustion of coal seam ignition and reduce mine ground temperature aspect to play a role.It is a kind of important techniques equipment that solves a Safety of Coal Mine Production difficult problem.
Description of drawings:
Fig. 1 is the structured flowchart of the utility model.
The specific embodiment:
Referring to Fig. 1, this specific embodiment is to adopt following technical scheme: it comprises fluid reservoir 1, fracturing fluid be mixed mixer 2, control supervising device 3, high pressure fracturing pump 4, down-hole coal body 5 and high-low pressure manifold 6; Down-hole coal body 5 is connected with an end of several high pressure fracturing pumps 4 through high-low pressure manifold 6; The other end of several high pressure fracturing pumps 4 is connected through high-low pressure manifold 6 and the fracturing fluid mixer 2 that is mixed; A be mixed end of mixer 2 of fracturing fluid is connected with several fluid reservoirs 1 through high-low pressure manifold 6, and supervising device 3 is controlled in the fracturing fluid mixer 2 low sides connection that is mixed.
Described fluid reservoir 1 can connect each liquid storage pipe through pipeline as required to be combined, and prepares for large-scale construction provides liquid.
Described fracturing fluid is mixed mixer 2 mainly by dosing equipment, mixing sand tank, and suction pump, pump is stirred in circulation, and device such as excavationg pump is formed.
Described control supervising device 3 is used for the startup of equipment, the control of stopping, and monitoring pressure, flow, mulling such as compares at parameter.
Described high pressure fracturing pump 4 mainly is made up of drive motors, torque-converters, high-pressure plunger pump, and parameter is: maximum pressure 50MPa, single pump discharge capacity 1.5m3/min also can carry out customized as required.
This specific embodiment is mainly used in the improvement work of the working face of coal seam of coal and gas outburst danger, through this equipment pressure break is carried out in the coal seam, can improve the coal seam permeability; Reduce coal body fracture zone bump, reduction work plane generation coal and gas are given prominence to the danger with bump, simultaneously; The coal seam is by after moistening; Reduced the coal dust generation,, can reduce the temperature in the coal body of coal seam owing to be injected with a large amount of water; Prevent spontaneous combustion of coal seam, suppress the spontaneous combustion of coal seam ignition and reduce mine ground temperature aspect to play a role.It is a kind of important techniques equipment that solves a Safety of Coal Mine Production difficult problem.
Claims (3)
1. laneway type coal-bed gas fracturing unit under the coal mine is characterized in that it comprises fluid reservoir (1), fracturing fluid be mixed mixer (2), control supervising device (3), high pressure fracturing pump (4), down-hole coal body (5) and high-low pressure manifold (6); Down-hole coal body (5) is connected with an end of several high pressure fracturing pumps (4) through high-low pressure manifold (6); The other end of several high pressure fracturing pumps (4) is connected through high-low pressure manifold (6) and the fracturing fluid mixer (2) that is mixed; A be mixed end of mixer (2) of fracturing fluid is connected with several fluid reservoirs (1) through high-low pressure manifold (6), and supervising device (3) is controlled in fracturing fluid mixer (2) the low side connection that is mixed.
2. laneway type coal-bed gas fracturing unit under the coal mine according to claim 1 is characterized in that described fracturing fluid is mixed mixer (2) mainly by dosing equipment, mixing sand tank, and suction pump, pump is stirred in circulation, and device such as excavationg pump is formed.
3. laneway type coal-bed gas fracturing unit under the coal mine according to claim 1 is characterized in that described high pressure fracturing pump (4) mainly is made up of drive motors, torque-converters, high-pressure plunger pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204648782U CN202325628U (en) | 2011-11-22 | 2011-11-22 | Coal-mine underground roadway type coal-seam gas-fracturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204648782U CN202325628U (en) | 2011-11-22 | 2011-11-22 | Coal-mine underground roadway type coal-seam gas-fracturing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325628U true CN202325628U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204648782U Expired - Lifetime CN202325628U (en) | 2011-11-22 | 2011-11-22 | Coal-mine underground roadway type coal-seam gas-fracturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325628U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265356A (en) * | 2014-09-15 | 2015-01-07 | 宝鸡航天动力泵业有限公司 | Intelligent gas control fracturing pump unit |
| CN108590621A (en) * | 2018-04-16 | 2018-09-28 | 中煤科工集团西安研究院有限公司 | High pressure adds sand system and method after underground coal mine hydraulic fracturing remotely continuously pumps |
-
2011
- 2011-11-22 CN CN2011204648782U patent/CN202325628U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265356A (en) * | 2014-09-15 | 2015-01-07 | 宝鸡航天动力泵业有限公司 | Intelligent gas control fracturing pump unit |
| CN108590621A (en) * | 2018-04-16 | 2018-09-28 | 中煤科工集团西安研究院有限公司 | High pressure adds sand system and method after underground coal mine hydraulic fracturing remotely continuously pumps |
| CN108590621B (en) * | 2018-04-16 | 2020-04-24 | 中煤科工集团西安研究院有限公司 | System and method for high-pressure sand adding after hydraulic fracturing remote continuous pump in coal mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |