CN104763455B - Frame carries gas drainage under suction caving roof coal hydraulic support - Google Patents
Frame carries gas drainage under suction caving roof coal hydraulic support Download PDFInfo
- Publication number
- CN104763455B CN104763455B CN201510099392.6A CN201510099392A CN104763455B CN 104763455 B CN104763455 B CN 104763455B CN 201510099392 A CN201510099392 A CN 201510099392A CN 104763455 B CN104763455 B CN 104763455B
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- CN
- China
- Prior art keywords
- gas drainage
- back timber
- under suction
- lock sleeve
- caving
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 3
- MGCQZNBCJBRZDT-UHFFFAOYSA-N midodrine hydrochloride Chemical compound [H+].[Cl-].COC1=CC=C(OC)C(C(O)CNC(=O)CN)=C1 MGCQZNBCJBRZDT-UHFFFAOYSA-N 0.000 claims 1
- 238000005065 mining Methods 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000003818 cinder Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008771 sex reversal Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Tents Or Canopies (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
Frame carries gas drainage under suction caving roof coal hydraulic support, and including supporting mechanism and gas drainage under suction device, supporting mechanism includes base, caving shield and back timber, and base is horizontally disposed with, and base is provided with hydraulic vertical prop, and back timber is arranged at hydraulic vertical prop upper end；Gas drainage under suction device includes gas drainage pipe and multigroup gas drainage device, gas drainage device includes screen casing, lock sleeve and swing hydraulic pressure mechanism, lock sleeve left and right sides are respectively arranged with rotating shaft, lock sleeve is passed through rotating shaft and is connected with back timber rotation, screen casing runs through lock sleeve center, screen casing lower end is connected with gas drainage pipe by negative pressure flexible pipe, gas drainage pipe is fixed on back timber, swing hydraulic pressure mechanism is made up of hydraulic cylinder and connecting rod, small end is fixedly connected with the rotating shaft of lock sleeve side, the piston rod of hydraulic cylinder is hinged with connecting rod lower end, the hydraulic cylinder other end is hinged with back timber, the axis of hydraulic cylinder piston rod is vertical with the axis of rotating shaft on lock sleeve.
Description
Technical field
The present invention relates to a kind of Mine Integrated mechanization Caving Roof Coal Mining Face plate supporting device with gas drainage under suction function,
More particularly, to a kind of frame carries gas drainage under suction caving roof coal hydraulic support.
Background technology
In China's existing coal resources reserves with yield, high seam accounts for 45% about, is that China's coal-mine realizes high yield height
The main force coal seam of effect.Through research and the practice of nearly 30 years, Coal Mining Equipment Complement（Longwall top coal caving）Technology due to
There is the remarkable advantages such as shortening coal mining prepares the duration, coal mining work efficiency is high, tunnelling is few, greatly promoted coal industry raw coal
It is achieved that the breakthrough sex reversal of China's high seam full-seam mining, longwall top coal caving has become as China and opens the high-yield and high-efficiency producing
Adopt the main method of high seam.
However, most of high seam of China is Gas-bearing Coal Seams, wherein more than 50% belongs to high gas layer.High methane
Coal seam fully mechanized coal face because by mining rate is big, space big, Residual coal in goaf is many, the impact of the factor such as mining influence is big, comprehensive
Adopt and in loose coal above caving roof coal hydraulic support back timber and caving shield, gathered substantial amounts of free gas, form high power capacity gas
Storehouse, when carrying out putting coal operation using traditional caving roof coal hydraulic support, the coal gas release of a large amount of tops, cause in stope, coal discharge outlet
And gas exceeding limit and the impact of potential Gas Disaster in tailgate, cause greatly to threaten to mine safety production, comprehensive
The methane accumulation problem at work surface Sub-Level Caving of putting is the bottleneck in high gas layer popularization and application for the restriction Sub-Level Caving technology.
Content of the invention
For the deficiencies in the prior art, the invention provides frame carries gas drainage under suction caving roof coal hydraulic support, permissible
Mine fully mechanized coal face top board is supported, pre-mining drainage can be carried out to the gas in the coal body of fully mechanized coal face top, reduce
The gas density of coal discharge outlet.
Concrete technical scheme is：Frame carries gas drainage under suction caving roof coal hydraulic support, including supporting mechanism and gas drainage under suction device,
Supporting mechanism includes base, caving shield and back timber, and base is horizontally disposed with, and base is provided with hydraulic vertical prop, and back timber is arranged at liquid
Pressure column upper end；Gas drainage under suction device includes gas drainage pipe and multigroup gas drainage device, and gas drainage device includes screen casing, locking
Set and swing hydraulic pressure mechanism, lock sleeve left and right sides are respectively arranged with rotating shaft, and lock sleeve is passed through rotating shaft and is connected with back timber rotation,
Screen casing runs through lock sleeve center, and screen casing lower end is connected with gas drainage pipe by negative pressure flexible pipe, and gas drainage pipe is fixed on
On back timber, swing hydraulic pressure mechanism is made up of hydraulic cylinder and connecting rod, and small end is fixedly connected with the rotating shaft of lock sleeve side, hydraulic pressure
The piston rod of cylinder is hinged with connecting rod lower end, and the hydraulic cylinder other end is hinged with back timber, on the axis of hydraulic cylinder piston rod and lock sleeve
The axis of rotating shaft is vertical.
Described back timber left end is hinged with front-axle beam, is additionally provided with front-axle beam jack, front-axle beam jack two between front-axle beam and back timber
End is hinged with front-axle beam and back timber respectively, and front-axle beam left end is hinged with face guard, is provided with face guard very heavy between face guard and front-axle beam
Top, face guard jack two ends are hinged with face guard and front-axle beam respectively；Back timber right-hand member is provided with caving shield, caving shield right low left high
Setting, caving shield is connected with base by second connecting rod, and second connecting rod includes front rod and back link, front rod and back link
Two ends are hinged with caving shield and base respectively, and front rod is located at the left side of back link；Caving shield right-hand member is provided with tail boom, and tail boom
It is connected with caving shield by tail boom jack.
Described screen casing is fixedly connected with lock sleeve by being sheathed on the quick locking buckle of lock sleeve lower end.
Described negative pressure flexible pipe is connected with gas drainage pipe by being arranged on the threeway of gas drainage pipe, and in threeway and negative pressure
It is provided with gate valve on the corresponding arm connecting of flexible pipe.
Described gas drainage pipe is suspended in below back timber by stationary rope.
Described small end is connected with the rotating shaft of lock sleeve side by flat key.
Described screen casing upper end is puncture portion.
Described negative pressure Hose Jacket is fixed located at screen casing lower end and by clip.
Present configuration is simple, easy to use, while hydraulic vertical prop is by back timber jack-up upwards, screen casing is inserted back timber
In the coal body of upper end；Unclamp and lock position that can be with quick regulation screen casing in lock sleeve by quick locking buckle, adjust
Knotter screen pipe stretches out the length of back timber, thus adapting to the change of coal body thickness above hydraulic support；By swing hydraulic pressure, mechanism is adjusted
Screen casing stretches into the angle in coal body above hydraulic support top beam, makes screen casing insert the higher position of gas density；By unclamping card
Hoop can realize the sharp separation of negative pressure flexible pipe and screen casing, thus can enter within screen casing screen casing during insertion coal body
Cinder is cleaned out；Being turned on and off of Mei Tai gas drainage under suction mechanism can individually be controlled by the opening and closing of control gate valve.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is gas drainage under suction apparatus structure schematic diagram of the present invention；
Fig. 3 is Fig. 2 top view；
Fig. 4 is for A-A in Fig. 2 to sectional view.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, frame carries gas drainage under suction caving roof coal hydraulic support, including supporting mechanism and gas
Drainage device 2, supporting mechanism includes base 15, caving shield 16 and back timber 17, and base 15 is horizontally disposed with, and base 15 is provided with liquid
Pressure column 18, back timber 17 is arranged at hydraulic vertical prop 18 upper end；Back timber 17 left end is hinged with front-axle beam 19, between front-axle beam 19 and back timber 17
It is additionally provided with front-axle beam jack 20, front-axle beam jack 20 two ends are hinged with front-axle beam 19 and back timber 17 respectively, by front-axle beam jack
20 can adjust the angle between front-axle beam 19 and back timber 17, and front-axle beam 19 left end is hinged with face guard 21, face guard 21 and front-axle beam 19
Between be provided with face guard jack 22, face guard jack 22 two ends are hinged with face guard 21 and front-axle beam 19 respectively, by shield
Side board jack 22 can adjust the angle between face guard 21 and front-axle beam 19；Back timber 17 right-hand member is provided with caving shield 16, shielding
Beam 16 right low left high is arranged, and caving shield 16 is connected with base 15 by second connecting rod, and second connecting rod includes front rod 23 and rear company
Bar 24, the two ends of front rod 23 and back link 24 are hinged with caving shield 16 and base 15 respectively, and front rod 23 is located at back link 24
Left side；Caving shield 16 right-hand member is hinged with tail boom 25, and tail boom jack 26 two ends are hinged with tail boom 25 and caving shield 16 respectively, on
State back timber 17, hydraulic vertical prop 18, front-axle beam 19, front-axle beam jack 20, face guard 21, face guard jack 22, front rod 23 and after
Connection between each part of connecting rod 24 is hinged.
Gas drainage under suction device 2 includes gas drainage pipe and multigroup gas drainage device, and gas drainage device includes screen casing 3, locking
Set 4 and swing hydraulic pressure mechanism, lock sleeve 4 left and right sides are respectively arranged with rotating shaft 6, and lock sleeve 4 passes through rotating shaft 6 and 17 turns of back timber
It is dynamically connected, screen casing 3 runs through lock sleeve 4 center, screen casing 3 upper end is puncture portion, and hydraulic support top beam is inserted in screen casing 3 upper end
In the coal body of 17 tops, screen casing 3 is fixedly connected with lock sleeve 4 by being sheathed on the quick locking buckle 10 of lock sleeve 4 lower end, leads to
Cross the quick positioning that quick locking buckle 10 can achieve screen casing 3, when screen casing 3 needs to be further inserted in coal body, unclamp quick
Locking buckle 10, makes screen casing 3 move upwards, simple and quick.Negative pressure flexible pipe 7 is passed through with gas drainage pipe 1 even in screen casing 3 lower end
Logical, negative pressure flexible pipe 7 is sheathed on screen casing 3 lower end and is fixed by clip 14.Negative pressure flexible pipe 7 is by being arranged on gas drainage pipe 1
Threeway 11 connect with gas drainage pipe 1, and be provided with gate valve 12 on the arm of threeway 11 connection corresponding with negative pressure flexible pipe 7.
Gas drainage pipe 1 is suspended in below back timber 17 by stationary rope 13, installs and dismounting using stationary rope 13 is convenient, improves
Work efficiency, swing hydraulic pressure mechanism is made up of hydraulic cylinder 8 and connecting rod 9, and the rotating shaft 6 of connecting rod 9 upper end and lock sleeve 4 side is passed through to put down
Key is fixedly connected, and the piston rod of hydraulic cylinder 8 is hinged with connecting rod 9 lower end, and hydraulic cylinder 8 other end is hinged with back timber 17, and hydraulic cylinder 8 is lived
The axis of stopper rod is vertical with the axis of rotating shaft 6.
When comprehensive mechanized caving coal working face adopts frame to carry gas drainage under suction caving roof coal hydraulic support, every hydraulic pressure is propped up
The gas drainage pipe 1 of frame is connected, and the gas drainage pipe one end after series connection is connected with mine gas extraction main pipeline, the other end
Closing.During back timber 17 jack-up is carried out supporting to tunnel by the hydraulic vertical prop 18 of every hydraulic support, screen casing 3 upper end is inserted
Enter in the coal body of hydraulic support top beam 17 top, now have part cinder and screen casing 3 can be entered by the air inlet on screen casing 3
Interior, if directly starting gas extraction, falling into the cinder in screen casing 3 and may result in negative pressure flexible pipe 7 and block, open clip 14, will
Negative pressure flexible pipe 7 and screen casing 3 separate, and then clean out the cinder in screen casing 3 and retighten negative pressure flexible pipe 7 and screen casing 3
Connect, in the coal body of hydraulic support top beam 17 top, device in Gas is known from experience in the air inlet entrance negative pressure flexible pipe 7 passing through on screen casing 3,
Finally it is collected in gas drainage pipe 1 and discharge, unclamping and locking and can be existed with quick regulation screen casing 3 by quick locking buckle 10
Position in lock sleeve 4, adjusts the length that screen casing 3 stretches out, thus adapting to the change of coal body thickness above hydraulic support；Meanwhile,
The rotating shaft 6 around its both sides for the lock sleeve 4 can be made to rotate by controlling the flexible of hydraulic cylinder 8 piston rod, thus driving screen casing 3 to swing,
Change position in the coal body above hydraulic support top beam 17 for the screen casing 3, make screen casing 3 near the higher part of gas density, when
When indivedual gas drainage under suction mechanisms location gas density is relatively low, its corresponding gate valve 12 can be closed, thus improving other positions
The methane drawing efficiency of Zhi Chu gas drainage under suction mechanism.
Claims (8)
1. frame carry gas drainage under suction caving roof coal hydraulic support it is characterised in that：Including supporting mechanism and gas drainage under suction device, support machine
Structure includes base, caving shield and back timber, and base is horizontally disposed with, and base is provided with hydraulic vertical prop, and back timber is arranged at hydraulic vertical prop
Upper end；Gas drainage under suction device includes gas drainage pipe and multigroup gas drainage device, and gas drainage device includes screen casing, lock sleeve and liquid
Pressure swing mechanism, lock sleeve left and right sides are respectively arranged with rotating shaft, and lock sleeve is passed through rotating shaft and is connected with back timber rotation, and screen casing passes through
Wear lock sleeve center, screen casing lower end is connected with gas drainage pipe by negative pressure flexible pipe, and gas drainage pipe is fixed on back timber,
Swing hydraulic pressure mechanism is made up of hydraulic cylinder and connecting rod, and small end is fixedly connected with the rotating shaft of lock sleeve side, hydraulic cylinder one end
Piston rod hinged with connecting rod lower end, the hydraulic cylinder other end is hinged with back timber, and the axis of hydraulic cylinder piston rod and lock sleeve turn
The axis of axle is vertical.
2. frame as claimed in claim 1 carry gas drainage under suction caving roof coal hydraulic support it is characterised in that：Described back timber left end is hinged
There is front-axle beam, between front-axle beam and back timber, be additionally provided with front-axle beam jack, front-axle beam jack two ends are hinged with front-axle beam and back timber respectively, front
Beam left end is hinged with face guard, is provided with face guard jack between face guard and front-axle beam, face guard jack two ends respectively with
Face guard and front-axle beam are hinged；Back timber right-hand member is provided with caving shield, and caving shield right low left high is arranged, caving shield pass through second connecting rod with
Base connects, and second connecting rod includes front rod and back link, and the two ends of front rod and back link are cut with scissors with caving shield and base respectively
Connect, front rod is located at the left side of back link；Caving shield right-hand member is provided with tail boom, is provided with tail boom very heavy between caving shield and tail boom
Top, tail boom jack two ends are hinged with tail boom and caving shield respectively.
3. frame as claimed in claim 1 carry gas drainage under suction caving roof coal hydraulic support it is characterised in that：Described screen casing passes through sheathed
Quick locking buckle in lock sleeve lower end is fixedly connected with lock sleeve.
4. frame as claimed in claim 1 carry gas drainage under suction caving roof coal hydraulic support it is characterised in that：Described negative pressure flexible pipe passes through
The threeway being arranged on gas drainage pipe is connected with gas drainage pipe, and arranges on the arm of threeway connection corresponding with negative pressure flexible pipe
There is gate valve.
5. frame as claimed in claim 1 carry gas drainage under suction caving roof coal hydraulic support it is characterised in that：Described gas drainage under suction Gutron
Cross stationary rope to be suspended in below back timber.
6. frame as claimed in claim 1 carry gas drainage under suction caving roof coal hydraulic support it is characterised in that：Described small end passes through
Flat key is connected with the rotating shaft of lock sleeve side.
7. frame as claimed in claim 1 carry gas drainage under suction caving roof coal hydraulic support it is characterised in that：Described screen casing upper end is to wear
Thorn portion.
8. frame as claimed in claim 1 carry gas drainage under suction caving roof coal hydraulic support it is characterised in that：Described negative pressure flexible pipe is sheathed
Fix in screen casing lower end and by clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099392.6A CN104763455B (en) | 2015-03-06 | 2015-03-06 | Frame carries gas drainage under suction caving roof coal hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099392.6A CN104763455B (en) | 2015-03-06 | 2015-03-06 | Frame carries gas drainage under suction caving roof coal hydraulic support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763455A CN104763455A (en) | 2015-07-08 |
| CN104763455B true CN104763455B (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510099392.6A Expired - Fee Related CN104763455B (en) | 2015-03-06 | 2015-03-06 | Frame carries gas drainage under suction caving roof coal hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763455B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145352A (en) * | 2019-06-28 | 2019-08-20 | 山西平阳煤机装备有限责任公司 | Hydraulic support column limiting device |
| CN111810210B (en) * | 2020-07-04 | 2022-04-26 | 济宁市勤创机械有限公司 | Hydraulic support |
| CN113006848A (en) * | 2021-03-18 | 2021-06-22 | 华能煤炭技术研究有限公司 | Hydraulic supporting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1167360A2 (en) * | 1984-02-09 | 1985-07-15 | Донецкий государственный проектно-конструкторский и экспериментальный институт комплексной механизации шахт "Донгипроуглемаш" | Device for sealing degassing hole |
| CN201277057Y (en) * | 2008-05-29 | 2009-07-22 | 秦长江 | Fully-mechanized mining caving coal working surface top coal gas drainage apparatus |
| CN103334775A (en) * | 2013-05-23 | 2013-10-02 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Gas extraction device for upper corner of coal mining working face and hydraulic bracket |
| CN203430558U (en) * | 2013-08-28 | 2014-02-12 | 江苏省矿业工程集团有限公司 | Air return corner gas processing system of gas collecting bin |
| CN203669921U (en) * | 2014-01-24 | 2014-06-25 | 河南理工大学 | Soft and broken coal seam gas extraction hole drilling with casing device |
| CN103899350A (en) * | 2014-04-28 | 2014-07-02 | 河南理工大学 | Fully mechanized caving face supporting top coal gas extraction system |
-
2015
- 2015-03-06 CN CN201510099392.6A patent/CN104763455B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1167360A2 (en) * | 1984-02-09 | 1985-07-15 | Донецкий государственный проектно-конструкторский и экспериментальный институт комплексной механизации шахт "Донгипроуглемаш" | Device for sealing degassing hole |
| CN201277057Y (en) * | 2008-05-29 | 2009-07-22 | 秦长江 | Fully-mechanized mining caving coal working surface top coal gas drainage apparatus |
| CN103334775A (en) * | 2013-05-23 | 2013-10-02 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Gas extraction device for upper corner of coal mining working face and hydraulic bracket |
| CN203430558U (en) * | 2013-08-28 | 2014-02-12 | 江苏省矿业工程集团有限公司 | Air return corner gas processing system of gas collecting bin |
| CN203669921U (en) * | 2014-01-24 | 2014-06-25 | 河南理工大学 | Soft and broken coal seam gas extraction hole drilling with casing device |
| CN103899350A (en) * | 2014-04-28 | 2014-07-02 | 河南理工大学 | Fully mechanized caving face supporting top coal gas extraction system |
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| Publication number | Publication date |
|---|---|
| CN104763455A (en) | 2015-07-08 |
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Granted publication date: 20170301 Termination date: 20210306 |