CN106382127B - One species soil property coal working surface hydraulic support and seam mining means of defence - Google Patents
One species soil property coal working surface hydraulic support and seam mining means of defence Download PDFInfo
- Publication number
- CN106382127B CN106382127B CN201611045408.6A CN201611045408A CN106382127B CN 106382127 B CN106382127 B CN 106382127B CN 201611045408 A CN201611045408 A CN 201611045408A CN 106382127 B CN106382127 B CN 106382127B
- Authority
- CN
- China
- Prior art keywords
- back timber
- hydraulic support
- jack
- face guard
- soil property
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D23/0427—Shield operating devices; Hinges therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
- E21D23/24—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms the advancing mechanisms being separate from the supporting construction
Abstract
The invention discloses a species soil property coal working surface hydraulic support and seam mining means of defence, the hydraulic support includes bracket base, set cap, bracket upright post, advancing jack, face guard and face guard jack, also include preceding spy back timber and preceding spy back timber jack, wherein, the front that back timber is located at the set cap is visited before described, it is flexible by the preceding spy back timber jack control, and inserted in supporting operation in rib.The present invention is directed to class soil property coal, provides effective working space for face guard using preceding spy back timber, is advantageous to the complete opening of side protection plate of hydraulic support, fully play the backplate effect of hydraulic support, and then improves the stability of rib.
Description
Technical field
The present invention relates to a kind of Coal Mining Technology field, more particularly, to a species soil property coal working surface hydraulic support and
Seam mining means of defence.
Background technology
Weak seam low intensity, structural difference are similar to loess to being formd under mechanical condition in long-term specific geology
Physics classroom teaching, it is this broken, loose like the non-native coal body of soil, be class soil property coal.
Rib easy slice caving unstability in class soil property coal working face mining process, the stability problem of rib seriously constrain class soil
The safety and high efficiency in matter coal seam.During the back production of coal seam, hydraulic support plays a key role in supporting, and selects suitable hydraulic support
It is prevention and control coal wall caving, improves the premise of coal body stability.
Although the existing hydraulic support for weak seam working face adds face guard, but after coal-winning machine coal cutting,
Newly exposed top easily inbreak, the coal and rock of inbreak are deposited in front of rib, reduce the space in front of hydraulic support, cause
Face guard is difficult to open completely, and the wall supporting performance of support is not in full use, supporting effect also unobvious, can not be to greatest extent
Raising coal body stability.
The content of the invention
It is an object of the invention to provide a species soil property coal working surface hydraulic support, to improve rib in recovery process
Stability.
The present invention also aims to provide the seam mining means of defence of a species soil property coal, exploited with improving rib
The stability of rib in journey.
Therefore, the invention provides a species soil property coal working surface hydraulic support, including bracket base, set cap, branch
Post, advancing jack, face guard and face guard jack, in addition to preceding spy back timber and preceding spy back timber jack are erected, its
In, the preceding front visited back timber and be located at set cap is flexible by preceding spy back timber jack control, and inserts coal in supporting operation
In wall.
Further, above-mentioned preceding back timber of visiting is spade-type.
Further, above-mentioned preceding one end for visiting back timber jack is fixedly connected with set cap, the other end and preceding spy back timber
It is fixedly connected.
Further, one end of above-mentioned face guard jack is connected with set cap, and the other end is connected with face guard.
Further, the connection end of above-mentioned face guard is hinged with set cap.
Further, above-mentioned preceding spy back timber and the preceding width for visiting back timber jack are less than the width of set cap.
Further, above-mentioned face guard includes the wall supporting plate body parallel to the scope of operation at work and visits back timber thousand positioned at pricker
The connecting rod of the jin top left and right sides, wherein, connecting rod includes the connection end being hinged with set cap.
Further, the position that back timber bottom surface is visited before of above-mentioned face guard is provided with avoidance face, wherein, avoidance face is being protected
During side board supporting operation avoiding space is formed between rib.
Further, the above-mentioned preceding bottom surface for visiting back timber is inclined-plane, and the angle with horizontal plane is 5 °~10 °.
According to another aspect of the present invention, there is provided the seam mining means of defence of a species soil property coal, using according to upper
Class soil property coal working surface hydraulic support described by face, the means of defence comprise the following steps：Rib is exploited in coal mining machine roller
When reaching the hydraulic support position, preceding the spy back timber and face guard of the hydraulic support are reclaimed, carries out coal cutting；Coal cutting knot
Shu Suihou reclaims the bracket upright post of the hydraulic support, before drag conveyor and advancing jack traction hydraulic support entirety
Move, then rise the bracket upright post, support the set cap；Back timber jack is visited before opening forces the preceding back timber of visiting to be inserted
Enter rib, and open face guard jack and open face guard；And promote drag conveyor and coal mining using advancing jack
Machine moves forward, and waits exploitation next time.
Compared with the prior art, the present invention has the beneficial effect that：The present invention is set above set cap leading portion, face guard
Preceding spy back timber is counted, after coal-winning machine coal cutting, preceding back timber of visiting can stretch out supporting in time under the promotion of preceding spy back timber jack
Newly exposed top plate, prevents roof collapse, ensure that the space between hydraulic support and rib, and effective work is improved for face guard
Space, be advantageous to the complete opening of side protection plate of hydraulic support, fully play the backplate effect of hydraulic support, improve the steady of rib
It is qualitative.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of class soil property coal working surface hydraulic support according to an embodiment of the invention；
Fig. 2 shows the top structure of class soil property coal working surface hydraulic support according to an embodiment of the invention；
Fig. 3 shows that class soil property coal working surface hydraulic support according to an embodiment of the invention uses shape in stope
The schematic diagram of state；
Fig. 4 shows the structural representation of the face guard of class soil property coal working surface hydraulic support according to an embodiment of the invention
Figure；And
Fig. 5 shows the flow chart of the seam mining means of defence of class soil property coal according to an embodiment of the invention.
Description of reference numerals
1st, preceding spy back timber；2nd, preceding spy back timber jack；
3rd, face guard；4th, face guard jack；
5th, set cap；6th, bracket upright post；
7th, bracket base；8th, advancing jack；
9th, drag conveyor；10th, coal-winning machine；
11st, coal mining machine roller；12nd, rib；
31st, wall supporting plate body；32nd, connecting rod；
33rd, face is avoided；1a, top surface；
1b, bottom surface.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 to Fig. 4 is shown according to some embodiments of the present invention.
As shown in figures 1 and 3, class soil property coal working surface hydraulic support includes bracket base 7, set cap 5, bracket upright post
6th, advancing jack 8, face guard 3 and face guard jack 4, in addition to preceding spy back timber 1 and preceding spy back timber jack 2, its
In, preceding back timber 1 of visiting be located at the front of set cap 5, controls flexible by preceding back timber jack 2 of visiting, and is used in supporting operation
In inserting in rib.
Wherein, preceding one end of spy back timber jack 2 is connected with set cap 5, and the other end is connected with preceding spy back timber 1, preceding
Visiting the stretching of back timber jack 2 can promote preceding back timber 1 of visiting to move forward, and one end of face guard jack 4 is connected with set cap 5, separately
One end is connected with face guard 3, and face guard jack 4, which stretches out, can open face guard 3, and bracket upright post 6 is located at set cap 5 and branch
Between frame base 7, bracket upright post 6 is used for supporting support back timber 5, and advancing jack 8 is connected with bracket base 7.
The present invention visits back timber before being devised above set cap leading portion, face guard, after coal-winning machine coal cutting, preceding spy back timber
The top plate that supporting newly exposes can be stretched out in time under the promotion of preceding spy back timber jack, roof collapse is prevented, ensure that hydraulic pressure
Space between support and rib, effective working space is improved for face guard, is advantageous to the complete opening of side protection plate of hydraulic support,
The backplate effect of hydraulic support can be played to greatest extent, improve the stability of rib.
In one embodiment, as shown in Fig. 2 preceding spy back timber 1 is spade-type.Preferably, the preceding top surface 1a for visiting back timber 1 is level
Face, bottom surface 1b are inclined-plane, and along the stretching direction of preceding spy back timber 1, for the preceding thickness for visiting back timber 1 by thick thinning, end is pointed.It is more excellent
Selection of land, the preceding bottom surface 1b for visiting back timber oblique angle is between 5 ° -10 °, such as 6 °.In the present embodiment, the preceding shape for visiting back timber is fitted
Close in insertion coal seam, the external force applied is small, and local eminence or scaling-off more by a small margin is only produced to rib.
In one embodiment, as shown in Figure 1 and Figure 4, in the operating position of face guard, the top of face guard 3 is avoidance face
33, the avoidance face 33 relative to rib vertical operation face flare, to form avoiding space.In the present embodiment, face is avoided
It is provided with the smooth opening beneficial to face guard.Meanwhile the avoidance face 33 and the bottom surface (inclined-plane) of preceding spy back timber 1 are functionally mutual
Coordinate, the position of rib local eminence is avoided, so as to reach more preferable supporting effect.
In one embodiment, as shown in Fig. 2 along the stretching direction of preceding spy back timber, the preceding width for visiting back timber 1 narrows from the width,
End is pointed.In the present embodiment, the Cat-in resisting force of back timber is visited before can further reducing.
In one embodiment, it is preceding to visit the width of back timber 1 and the preceding width for visiting back timber jack 2 less than set cap.At this
In embodiment, in the width range of set cap, connecting rod can be set in preceding spy back timber jack both sides, for connecting wall supporting
Plate.
In one embodiment, as shown in figure 4, face guard 3 is included at work parallel to the He of wall supporting plate body 31 of the scope of operation
Connecting rod 32 at left and right sides of preceding spy back timber jack, wherein, the connection end of connecting rod 32 and set cap 5 are be hinged.
In the present embodiment, the space of preceding spy back timber jack both sides is make use of effective and reasonablely.In a variant embodiment, connecting rod 32
It is fixedly connected with set cap 5, wall supporting plate body 31 is be hinged with connecting rod 32.In this variant embodiment, connecting rod 32 is fixation
Part, in recovery, preceding spy back timber is located between the connecting rod of both sides, and preceding spy back timber is played a protective role.
As shown in figure 5, the seam mining means of defence of class soil property coal comprises the following steps：
S11, coal mining machine roller exploitation rib reach the hydraulic support position when, reclaim the hydraulic support
Preceding spy back timber and face guard, carry out coal cutting；
The bracket upright post of the hydraulic support is reclaimed in S13, coal cutting after terminating, led using drag conveyor and advancing jack
Draw hydraulic support integral forward lead, then rise the bracket upright post, support the set cap；
Back timber jack is visited before S15, unlatching forces the preceding back timber of visiting to insert rib, and opens face guard jack and beat
Open face guard；And
S17, drag conveyor and coal-winning machine reach are promoted using advancing jack, wait exploitation next time.
According to the seam mining means of defence of the present invention, after the coal cutting of coal mining machine roller 11 terminates, bracket upright post 6, profit are reclaimed
With drag conveyor 9 and the towing bracket integral forward lead of advancing jack 8, subsequent lift boom column 6, supporting support back timber 5, open
Open face guard jack 4, promote preceding back timber of visiting to insert rib, then open face guard 3, the top plate of completely isolated new exposure reaches
Prevent the purpose of roof fall；Finally drag conveyor 9 and coal-winning machine 10 is promoted to move forward using advancing jack 8, completion is once mined
Bracing Process.
The present invention has given full play to the wall supporting and support action of hydraulic support, prevents that " piece, emit, leak " occurs in recovery process
The accident kept the safety in production Deng harm, reach the purpose of the safe and efficient back production of class soil property coal working face.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
1. a species soil property coal working surface hydraulic support, including bracket base (7), set cap (5), bracket upright post (6), passage
Jack (8), face guard (3) and face guard jack (4), it is characterised in that also include preceding spy back timber (1) and preceding visit is pushed up
Beam jack (2), wherein, the front that back timber (1) is located at the set cap (5) is visited before described, it is very heavy by the preceding spy back timber
It is flexible to push up (2) control, and is inserted in supporting operation in rib, it is spade-type to visit back timber (1) before described, the face guard (3)
It is close it is described before visit back timber (1) bottom surface position be provided with avoidance face (33), wherein, the avoidance face is in the wall supporting slab supporting
During operation avoiding space is formed between the rib.
2. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that back timber jack is visited before described
(2) one end is fixedly connected with the set cap (5), and the other end is fixedly connected with the preceding spy back timber (1).
3. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that the face guard jack
(4) one end is connected with the set cap (5), and the other end is connected with the face guard (3).
4. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that the company of the face guard (3)
It is be hinged with the set cap (5) to connect end.
5. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that it is described before visit back timber (1) and
The preceding width for visiting back timber jack (2) is less than the width of the set cap (5).
6. class soil property coal working surface hydraulic support according to claim 5, it is characterised in that the face guard (3) includes
Wall supporting plate body (31) in supporting operation parallel to rib face and the company at left and right sides of the preceding spy back timber jack (2)
Extension bar (32), wherein, the connecting rod (32) includes the connection end being hinged with the set cap (5).
7. class soil property coal working surface hydraulic support according to claim 1, it is characterised in that back timber (1) is visited before described
Bottom surface (1b) is inclined-plane, and the angle with horizontal plane is 5 °~10 °.
A 8. species soil property coal seam mining means of defence, it is characterised in that using according to any one of claim 1 to 7
Class soil property coal working surface hydraulic support, the means of defence include：
Step 1：When coal mining machine roller exploitation rib reaches the hydraulic support position, the hydraulic support is reclaimed
Preceding spy back timber and face guard, carry out coal cutting；
Step 2: the bracket upright post of the hydraulic support is reclaimed in coal cutting after terminating, led using drag conveyor and advancing jack
Draw hydraulic support integral forward lead, then rise the bracket upright post, support the set cap；
Step 3: back timber jack is visited before opening forces the preceding spy back timber insertion rib, and open face guard jack and beat
Open face guard；And
Step 4：Drag conveyor and coal-winning machine reach are promoted using advancing jack, waits exploitation next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045408.6A CN106382127B (en) | 2016-11-24 | 2016-11-24 | One species soil property coal working surface hydraulic support and seam mining means of defence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045408.6A CN106382127B (en) | 2016-11-24 | 2016-11-24 | One species soil property coal working surface hydraulic support and seam mining means of defence |
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| Publication Number | Publication Date |
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| CN106382127A CN106382127A (en) | 2017-02-08 |
| CN106382127B true CN106382127B (en) | 2017-11-21 |
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| CN201611045408.6A Active CN106382127B (en) | 2016-11-24 | 2016-11-24 | One species soil property coal working surface hydraulic support and seam mining means of defence |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018094657A1 (en) * | 2016-11-24 | 2018-05-31 | 安徽理工大学 | Hydraulic support for soil-like coal working face, and protection method for coal seam mining |
| CN109297737B (en) * | 2018-10-19 | 2023-10-17 | 安徽理工大学 | Simulation experiment device for fully-mechanized caving of coal mine |
| CN110671141A (en) * | 2019-10-28 | 2020-01-10 | 陕西开拓建筑科技有限公司 | Hydraulic support for separate mining and transportation mining of thin coal seam and mining method |
| CN114776289A (en) * | 2022-04-24 | 2022-07-22 | 河南理工大学 | Distributed coal cutting device for coal mining working face of coal mine |
| CN114837604B (en) * | 2022-05-25 | 2023-09-22 | 安徽理工大学 | Segmented grouting system and advanced grouting method for soft coal seam working face |
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| US4427321A (en) * | 1979-05-02 | 1984-01-24 | Gewerkschaft Eisenhutte Westfalia | Mineral mining installation |
| CN101487395A (en) * | 2009-02-24 | 2009-07-22 | 辽宁天安矿山科技有限公司 | Template support for filling after support |
| CN101892856A (en) * | 2010-07-03 | 2010-11-24 | 霍州煤电集团有限责任公司 | Special hydraulic support for underground filling coal mining of coal mine |
| CN103046944A (en) * | 2012-12-26 | 2013-04-17 | 三一重型装备有限公司 | Hydraulic support |
| CN205078293U (en) * | 2015-11-02 | 2016-03-09 | 陕西鲁泰能源科技有限公司 | Machine gun closes adopts dual -purpose hydraulic support of spraying dust fall |
| CN205101015U (en) * | 2015-10-29 | 2016-03-23 | 中国矿业大学 | Four posts float and shake formula hydraulic support |
| CN206190305U (en) * | 2016-11-24 | 2017-05-24 | 安徽理工大学 | Class soil property coal face hydraulic bracket |
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2016
- 2016-11-24 CN CN201611045408.6A patent/CN106382127B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427321A (en) * | 1979-05-02 | 1984-01-24 | Gewerkschaft Eisenhutte Westfalia | Mineral mining installation |
| CN101487395A (en) * | 2009-02-24 | 2009-07-22 | 辽宁天安矿山科技有限公司 | Template support for filling after support |
| CN101892856A (en) * | 2010-07-03 | 2010-11-24 | 霍州煤电集团有限责任公司 | Special hydraulic support for underground filling coal mining of coal mine |
| CN103046944A (en) * | 2012-12-26 | 2013-04-17 | 三一重型装备有限公司 | Hydraulic support |
| CN205101015U (en) * | 2015-10-29 | 2016-03-23 | 中国矿业大学 | Four posts float and shake formula hydraulic support |
| CN205078293U (en) * | 2015-11-02 | 2016-03-09 | 陕西鲁泰能源科技有限公司 | Machine gun closes adopts dual -purpose hydraulic support of spraying dust fall |
| CN206190305U (en) * | 2016-11-24 | 2017-05-24 | 安徽理工大学 | Class soil property coal face hydraulic bracket |
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| Publication number | Publication date |
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| CN106382127A (en) | 2017-02-08 |
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