CN102182435A - Directional fracturing device for coal mine - Google Patents
Directional fracturing device for coal mine Download PDFInfo
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- CN102182435A CN102182435A CN2011100750589A CN201110075058A CN102182435A CN 102182435 A CN102182435 A CN 102182435A CN 2011100750589 A CN2011100750589 A CN 2011100750589A CN 201110075058 A CN201110075058 A CN 201110075058A CN 102182435 A CN102182435 A CN 102182435A
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- hydraulic cylinder
- fracturing device
- base plate
- directional fracturing
- hydraulic cylinders
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Abstract
The invention relates to a directional fracturing device for a coal mine. The device comprises a strip-shaped supporting bottom plate, wherein a series of hydraulic cylinders is vertically fixed at the upper end of the supporting bottom plate; a top pressing piece is fixed at the tail end of a piston rod of each hydraulic cylinder, or the same top pressing piece is fixed at the tail ends of the piston rods of a plurality of hydraulic cylinders, or the piston rods of all of the hydraulic cylinders share a strip-shaped supporting top plate; an oil delivery pipe is fixed with the strip-shaped supporting bottom plate in parallel; and the oil delivery pipe is connected in series with the respective hydraulic cylinders. In the device, the plurality of small-sized hydraulic cylinders serve as driving forces, and an expansion pressure is applied to a side wall of a drilling hole of a coal bed by using the bottom plate at one end of the hydraulic cylinder and the top pressing piece or the top plate at the other end, so the drilling hole is internally fractured for further mining. The directional fracturing device for the coal mine is quite convenient to operate, greatly improves working efficiency, improves mining efficiency, is safe and reliable, and avoids pollution and damage to a working environment.
Description
Technical field
The present invention relates to the aid that a kind of coal mining is used, particularly relate to a kind of colliery directional fracturing device.
Background technology
In the process of coal mining, need to punch on the coal seam with drilling tool earlier at present, utilize giant in the hole, to fetch water then, utilize the pressure of giant to make the hole wall in the boring crack take place so that further exploitation.There are a lot of drawbacks in this mode, at first, the sealing problem that giant inserts after the boring can not finely solve, need very loaded down with trivial details steady job could with giant securely sealing and fixing in the aperture, so still there are two FAQs, the first need take a long time sealing and fixing, influence mining progress, it two is that the structure of this sealing and fixing is still insecure, often hydraulic pressure occurs and increase the situation that the back hydraulic giant breaks away from, cause boring to be ruined and punching again, even the coal seam take place outstanding around causing boring.Another shortcoming that adopts the mode of giant is to cause problem such as mining environment ponding inevitably, influences further exploitation work.
Summary of the invention
For overcoming the deficiency that prior art exists, the invention provides a kind of colliery directional fracturing device.
Technical scheme: a kind of colliery directional fracturing device, the support base plate that comprises a strip, vertical fixing has a series of hydraulic cylinders in the upper end of this support base plate, the end of the piston rod of each hydraulic cylinder is fixed with the roof pressure sheet respectively, perhaps the end of the piston rod of several hydraulic cylinders is fixed same roof pressure sheet, the perhaps public bar shaped roof supporting of the piston rod of all hydraulic cylinder, supporting the base plate secured in parallel with strip has petroleum pipeline, this petroleum pipeline respectively with the connecting of each hydraulic cylinder.
Supporting base plate or roof supporting is the arc gripper shoe, and the convex globoidal that supports base plate is downward, and the convex arc of roof supporting makes progress, and petroleum pipeline is positioned at the concave arc groove that supports base plate.
Each roof pressure sheet is arc shape or is the spherical shell shape.
The public petroleum pipeline of the oil inlet pipe of each hydraulic cylinder and flowline is perhaps used a petroleum pipeline respectively.
Described hydraulic cylinder is a multistage hydraulic cylinder.
Be set with corrugated flexible hose on the hydraulic cylinder.
Beneficial effect of the present invention:
The present invention utilizes a plurality of small-sized hydraulic cylinders as motive force, by the base plate of hydraulic cylinder one end and the roof pressure sheet or the top board of the other end, the coal bed drilling sidewall is applied expansion pressure, impels that boring is inner to produce the crack so that further exploitation.Kuo Zhang degree as required, each hydraulic cylinder can be the unit hydraulic cylinder, also can be multistage hydraulic cylinder, each hydraulic cylinder can a public petroleum pipeline, because each hydraulic cylinder is connected on the petroleum pipeline, so can reach the effect of evenly exerting all one's strength, the present invention adopts hydraulic cylinder as thrust, and its dynamics is much larger than the pressure of conventional high-tension water, and each hydraulic cylinder stretches out and indentation simultaneously, be convenient to exert pressure the effect highly significant again after whole device is selected in boring.This device is pure frame for movement, produce easily and processing, operation is very easy, long service life does not need to safeguard that another characteristics of the present invention in addition are that length is not defined basically, if it is too dark to hole, then the segmentation from inside to outside of this device is exerted pressure, if drilling depth is too shallow, its part is deeply holed exert pressure.And as required,, can also under the support base plate, increase pad to raise the roof pressure starting point if boring causes the aperture thick excessively because of subsiding.With respect to traditional water under high pressure operating type, not with consideration hell sealing problem, thereby operation is very easy, improved operating efficiency greatly, improves production efficiency.Definite by testing, utilize directional fracturing device of the present invention to the boring fracturing work that expands, the hydraulic pressure that its operating efficiency is more traditional improves more than 10 times, and result of use is better than the hydraulic pressure mode, and is safe and reliable, working environment do not polluted and destroy.
Description of drawings
Fig. 1 is a user mode schematic diagram of the present invention;
Fig. 2 is one of directional fracturing device part section structural representation of the present invention;
Fig. 3 is the A-A cross-sectional view of Fig. 2;
Fig. 4 is two of a directional fracturing device part section structural representation of the present invention;
Fig. 5 is a multistage hydraulic cylinder application schematic diagram in the present invention;
Three of Fig. 6 directional fracturing device of the present invention part section structural representation;
Fig. 7 is the B-B cross-sectional view of Fig. 6.
Number in the figure 1 supports base plate for arc, and 2 is the roof pressure sheet, and 3 is petroleum pipeline, and 4 is the piston cylinder of hydraulic cylinder, and 5 is the piston rod of hydraulic cylinder, and 6 is the coal seam, and 7 are boring, and 8 is multistage hydraulic cylinder, and 9 is corrugated flexible hose, and 10 is the arc roof supporting.
The specific embodiment
Embodiment one: referring to Fig. 1, Fig. 2, Fig. 3, a kind of colliery directional fracturing device, the arc gripper shoe 1 that comprises a strip, vertical fixing has a series of hydraulic cylinders in the upper end of this support base plate, the end of the piston rod of each hydraulic cylinder is fixed with roof pressure sheet 2 respectively, and each roof pressure sheet is arc shape or is the spherical shell shape.Supporting the base plate secured in parallel with strip has petroleum pipeline 3, and petroleum pipeline is positioned at the concave arc groove that supports base plate.The public petroleum pipeline of the oil inlet pipe of each hydraulic cylinder and flowline, this petroleum pipeline respectively with the connecting of each hydraulic cylinder.
Supporting base plate or roof supporting is the arc gripper shoe,
Embodiment two: referring to Fig. 4, content and embodiment one are basic identical, and something in common does not repeat, and different is: the end of the piston rod of several hydraulic cylinders is fixed same roof pressure sheet.
Embodiment three: referring to Fig. 5, content and embodiment one are basic identical, and something in common does not repeat, and different is: described hydraulic cylinder is a multistage hydraulic cylinder, is set with corrugated flexible hose on the hydraulic cylinder.
Embodiment four: referring to Fig. 6, Fig. 7, content and embodiment one are basic identical, and something in common does not repeat, and different is: the public bar shaped roof supporting of the piston rod of all hydraulic cylinder, and the convex globoidal that supports base plate is downward, and the convex arc of roof supporting is upwards.
Claims (6)
1. colliery directional fracturing device, it is characterized in that: the support base plate that comprises a strip, vertical fixing has a series of hydraulic cylinders in the upper end of this support base plate, the end of the piston rod of each hydraulic cylinder is fixed with the roof pressure sheet respectively, perhaps the end of the piston rod of several hydraulic cylinders is fixed same roof pressure sheet, the perhaps public bar shaped roof supporting of the piston rod of all hydraulic cylinder, supporting the base plate secured in parallel with strip has petroleum pipeline, this petroleum pipeline respectively with the connecting of each hydraulic cylinder.
2. colliery according to claim 1 directional fracturing device is characterized in that: supporting base plate or roof supporting is the arc gripper shoe, and the convex globoidal that supports base plate is downward, and the convex arc of roof supporting makes progress, and petroleum pipeline is positioned at the concave arc groove that supports base plate.
3. colliery according to claim 1 directional fracturing device is characterized in that: each roof pressure sheet is arc shape or is the spherical shell shape.
4. colliery according to claim 1 directional fracturing device is characterized in that: the public petroleum pipeline of the oil inlet pipe of each hydraulic cylinder and flowline, perhaps use a petroleum pipeline respectively.
5. colliery according to claim 1 directional fracturing device is characterized in that: described hydraulic cylinder is a multistage hydraulic cylinder.
6. according to the described colliery of the arbitrary claim of claim 1-5 directional fracturing device, it is characterized in that: be set with corrugated flexible hose on the hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100750589A CN102182435A (en) | 2011-03-28 | 2011-03-28 | Directional fracturing device for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100750589A CN102182435A (en) | 2011-03-28 | 2011-03-28 | Directional fracturing device for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102182435A true CN102182435A (en) | 2011-09-14 |
Family
ID=44568713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100750589A Pending CN102182435A (en) | 2011-03-28 | 2011-03-28 | Directional fracturing device for coal mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102182435A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675400A (en) * | 2013-11-29 | 2015-06-03 | 张弘 | Hydraulic type directional fracturing equipment |
| CN104675786A (en) * | 2013-11-29 | 2015-06-03 | 张弘 | Portable tensioner with strong force and rectangular cross section |
| CN112761629A (en) * | 2021-03-10 | 2021-05-07 | 中国石油大学(北京) | Method and device for measuring crack propagation resistance of high-temperature rock |
Citations (8)
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| CN86205822U (en) * | 1986-08-13 | 1987-07-15 | 广东省地震局 | Rock cracking tool |
| CN1060334A (en) * | 1991-10-05 | 1992-04-15 | 中国矿业大学 | Hydraulic swelling method and device thereof |
| CN2635891Y (en) * | 2003-08-18 | 2004-08-25 | 张宝成 | Reaming machine for pile hole |
| US20060108111A1 (en) * | 2004-11-22 | 2006-05-25 | Kas Yanov Dimitri A | Increasing media permeability with acoustic vibrations |
| CN201071934Y (en) * | 2007-08-08 | 2008-06-11 | 刘永占 | Anti-explosion hydraulic oil cylinder for mine |
| CN201232562Y (en) * | 2008-07-31 | 2009-05-06 | 中国矿业大学 | Double-fork hyperstatic hydraulic support |
| CN201460919U (en) * | 2009-07-28 | 2010-05-12 | 安阳鑫龙煤业(集团)有限责任公司 | Universal supporting column |
| US7810570B2 (en) * | 2006-06-23 | 2010-10-12 | Calfrac Well Services Ltd. | Shock-release fluid fracturing method and apparatus |
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2011
- 2011-03-28 CN CN2011100750589A patent/CN102182435A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86205822U (en) * | 1986-08-13 | 1987-07-15 | 广东省地震局 | Rock cracking tool |
| CN1060334A (en) * | 1991-10-05 | 1992-04-15 | 中国矿业大学 | Hydraulic swelling method and device thereof |
| CN2635891Y (en) * | 2003-08-18 | 2004-08-25 | 张宝成 | Reaming machine for pile hole |
| US20060108111A1 (en) * | 2004-11-22 | 2006-05-25 | Kas Yanov Dimitri A | Increasing media permeability with acoustic vibrations |
| US7810570B2 (en) * | 2006-06-23 | 2010-10-12 | Calfrac Well Services Ltd. | Shock-release fluid fracturing method and apparatus |
| CN201071934Y (en) * | 2007-08-08 | 2008-06-11 | 刘永占 | Anti-explosion hydraulic oil cylinder for mine |
| CN201232562Y (en) * | 2008-07-31 | 2009-05-06 | 中国矿业大学 | Double-fork hyperstatic hydraulic support |
| CN201460919U (en) * | 2009-07-28 | 2010-05-12 | 安阳鑫龙煤业(集团)有限责任公司 | Universal supporting column |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675400A (en) * | 2013-11-29 | 2015-06-03 | 张弘 | Hydraulic type directional fracturing equipment |
| CN104675786A (en) * | 2013-11-29 | 2015-06-03 | 张弘 | Portable tensioner with strong force and rectangular cross section |
| CN112761629A (en) * | 2021-03-10 | 2021-05-07 | 中国石油大学(北京) | Method and device for measuring crack propagation resistance of high-temperature rock |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110914 |