CN107654250A - Fully mechanized mining withdraws working face fan section and withdraws method - Google Patents
Fully mechanized mining withdraws working face fan section and withdraws method Download PDFInfo
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- CN107654250A CN107654250A CN201711099462.3A CN201711099462A CN107654250A CN 107654250 A CN107654250 A CN 107654250A CN 201711099462 A CN201711099462 A CN 201711099462A CN 107654250 A CN107654250 A CN 107654250A
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- 238000005065 mining Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000000284 extract Substances 0.000 claims abstract description 10
- 238000000605 extraction Methods 0.000 claims abstract description 7
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 21
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Working face fan section is withdrawn the embodiment of the invention discloses a kind of fully mechanized mining and withdraws method, and it includes：Support frame, the support frame supporting fan section top plate are installed in fan section；Extract the first hydraulic support to be removed out；When first after hydraulic support extraction is removed, the support frame wipes top plate movement to close to the direction of the second hydraulic support to be removed；When the support frame when direction for removing hydraulic support wipes top plate and moves the first preset distance, raises the supporting height of the support frame to close to second；When the supporting height of the support frame rises to the first predetermined altitude, the second hydraulic support to be removed is extracted out.It can be improved using the embodiment of the present invention and withdraw efficiency, saving withdraws cost.
Description
Technical field
The present embodiments relate to coal-mining technique field, and in particular to a kind of fully mechanized mining withdraws the working face fan section side of withdrawing
Method.
Background technology
When fully-mechanized mining working withdraws hydraulic support, existing method is to safeguard that fully-mechanized mining working is withdrawn using a shield support
The top plate of passage, the fan section of working face return channel is withdrawn for fully mechanized mining, then coordinates π type roof beam structure canopies with hydraulic prop,
I.e. " the post steel canopy of a beam three " safeguards top plate.When close to first of fan section after hydraulic support withdrawing is removed, it is necessary to first
Two post steel canopies of a beam three are set up at the top plate of hydraulic support origin-location, then again by the hydraulic support to be removed of distance in fan section
The farthest post steel canopy of two beams three removes, and the quantity of the post steel canopy of a beam three is at least seven.Due to the branch of the post steel canopy of a beam three
Be present the shortcomings of control top area is big, and fan section roof pressure is big, and roof control difficulty is big and security risk is high in shield mode, easily send out
Raw large area is crushed, leaks top, pushes over the accidents such as frame canopy, especially in the working face that top plate or bottom plate are soft, argillization is serious,
Hydraulic prop bores that bottom is serious, and supporting intensity is poor, during one beam of artificial unloading, three post steel canopy, top plate easily occurs and caves in, safety
Property is poor.
And to roof cracking, absciss layer, tear and net serious working face fan section top plate is safeguarded using grillage, treated every a frame
Remove hydraulic support and extract frame hydraulic support to be removed, supported after extracting hydraulic support with groined type grillage, then recycling is withdrawn
Hydraulic support, to supporting grillage not recycling, withdraw cost height.
The content of the invention
In view of this, the embodiment of the present invention proposes that a kind of fully mechanized mining withdraws working face fan section and withdraws method, above-mentioned to solve
Technical problem.
The embodiment of the present invention proposes that a kind of fully mechanized mining withdraws working face fan section and withdraws method, and it includes：Installed in fan section
Support frame, the support frame supporting fan section top plate；Extract the first hydraulic support to be removed out；When the first hydraulic support to be removed is taken out
After going out, the support frame wipes top plate movement to close to the direction of the second hydraulic support to be removed；When the support frame is to close
Second when the direction for removing hydraulic support wipes top plate and moves the first preset distance, raises the supporting height of the support frame；When
When the supporting height of the support frame rises to the first predetermined altitude, the second hydraulic support to be removed is extracted out；When extraction N liquid to be removed
After pressing support, the support frame wipes top plate movement to close to the direction of N+1 hydraulic supports to be removed；When the support frame to
Close to N+1 when the direction for removing hydraulic support wipes top plate and moves the first preset distance, the supporting for raising the support frame is high
Degree；When the supporting height of the support frame rises to the first predetermined altitude, N+1 hydraulic supports to be removed are extracted out, wherein, N >=
2。
Alternatively, when the supporting height of the support frame rises to the first predetermined altitude, the second hydraulic pressure branch to be removed is extracted out
Frame includes：When the supporting height of the support frame rises to the first predetermined altitude, the auxiliary frame is to close to the second liquid to be removed
The direction of support is pressed to wipe top plate movement, wherein, auxiliary frame is disposed adjacent with support frame；When the auxiliary frame is treated to close to second
When removing direction wiping top plate movement the second preset distance of movement of hydraulic support, the supporting height of the auxiliary frame is raised；When described
When the supporting height of auxiliary frame rises to the second predetermined altitude, the second hydraulic support to be removed is extracted out.
Alternatively, when the supporting height of the auxiliary frame rises to the second predetermined altitude, the second hydraulic support to be removed is extracted out
Including：When the supporting height of the auxiliary frame rises to the second predetermined altitude, the shield support is to close to the second hydraulic pressure to be removed
Top plate movement is wiped in the direction of support, wherein, the shield support is disposed adjacent with auxiliary frame；When the shield support is to close to the
Two when the direction for removing hydraulic support wipes top plate and moves three preset distances, raises the supporting height of the shield support；Work as institute
When stating the supporting height of shield support and rising to three predetermined altitudes, the second hydraulic support to be removed is extracted out.
Alternatively, the lifting of the support frame is controlled on the auxiliary frame, on the shield support described in control
The lifting of auxiliary frame.
Alternatively, the quantity of the shield support is 2-3, adjacent shield support parallel arrangement.
Alternatively, when first after hydraulic support extraction is removed, the support frame is to close to the second hydraulic support to be removed
Wipe top plate movement in direction；When the support frame wipes top plate the first pre- spacing of movement to close to the direction of the second hydraulic support to be removed
From when, raising the supporting height of the support frame includes：When first after removing hydraulic support and extracting out, before the support frame
Frame wipes top plate movement to close to the direction of the second hydraulic support to be removed；When the side arm of the support frame is to close to the second liquid to be removed
When pressing the direction of support to wipe top plate to move the first preset distance, the supporting height of side arm of the support frame is raised to the 4th pre-
Fixed height；The after-frame of the support frame wipes top plate movement to close to the direction of the second hydraulic support to be removed；When the supporting branch
The after-frame of frame when the direction for removing hydraulic support wipes top plate and moves the first preset distance, raises the support frame to close to second
After-frame supporting height to the 5th predetermined altitude, wherein, the 4th predetermined altitude and the 5th predetermined altitude with the first predetermined height
Spend equal.
Alternatively, the support force of the side arm after movement is equal with the initial support power of the side arm, the institute after movement
The support force for stating after-frame is equal with the initial support power of the after-frame.
Alternatively, the support force of the support frame after movement is equal with the initial support power of the support frame, moves
The support force of the auxiliary frame after dynamic is equal with the initial support power of the auxiliary frame, the branch of the shield support after movement
Support force is equal with the initial support power of the shield support.
Alternatively, the first preset distance, the second preset distance and the 3rd preset distance are equal.
Alternatively, the first hydraulic support to be removed and the second hydraulic support to be removed are extracted out by winch.
Fully mechanized mining provided in an embodiment of the present invention withdraws working face fan section and withdraws method by setting supporting branch in fan section
Frame, after removing hydraulic support and extracting out, goaf top plate is supported by mobile support frame, without the artificial handling post of one beam three
Steel canopy, raising withdraw efficiency, reduce labor strength, and can reduce the consumption of individual prop, and saving withdraws cost, simultaneously
Fan section supporting machine can be made, supporting is safer, and uses hand hydraulically controlled guide's adjacent-support control device, makes staff
Not in hazardous area operation, security is improved.
Brief description of the drawings
Fig. 1 is that the fully mechanized mining of the embodiment of the present invention withdraws the flow chart that working face fan section withdraws method.
Fig. 2 is that the fully mechanized mining of the embodiment of the present invention withdraws working face fan section rack arrangement figure.
Fig. 3 is that the fully mechanized mining of the embodiment of the present invention withdraws the flow chart that working face fan section withdraws the S105 of method.
Fig. 4 is that the fully mechanized mining of the embodiment of the present invention withdraws the structural representation that working face fan section withdraws the auxiliary frame of method.
Fig. 5 is that the fully mechanized mining of the embodiment of the present invention withdraws the flow chart that working face fan section withdraws the S203 of method.
Fig. 6 is that the fully mechanized mining of the embodiment of the present invention withdraws the flow chart that working face fan section withdraws the S103 and S104 of method.
Fig. 7 is that the fully mechanized mining of the embodiment of the present invention withdraws the structural representation that working face fan section withdraws the support frame of method
Figure.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical scheme is described in detail.
Embodiment one
Fig. 1 shows that the fully mechanized mining of the embodiment of the present invention withdraws the flow chart that working face fan section withdraws method, and Fig. 2 is shown
The fully mechanized mining of the embodiment of the present invention withdraws working face fan section rack arrangement figure, and it includes：
S101, support frame, the support frame supporting fan section top plate are installed in fan section；
The quantity of support frame can be configured according to the supporting area of fan section top plate.Push up in support frame supporting fan section
Plate, support frame is to initial support power that the support force of top plate is support frame before not moving.
S102, extract the first hydraulic support to be removed out；
Need to be removed hydraulic support arranged in parallel between goaf and return channel.First hydraulic support to be removed is distance
The nearest support of support frame.
S103, when first after hydraulic support extraction is removed, the support frame is to close to the side of the second hydraulic support to be removed
Moved to top plate is wiped；
The supporting height of support frame is reduced, while applies an active force to support frame, the direction of active force is by propping up
Protect support and point to the second hydraulic support to be removed, when support frame can move, the supporting for stopping reducing support frame immediately is high
Degree, the moving process of support frame move to wipe top plate.
S104, when the support frame wipes top plate the first preset distance of movement to close to the direction of the second hydraulic support to be removed
When, raise the supporting height of the support frame；
First preset distance is equal to the supporting width of the first hydraulic support to be removed, as shown in Fig. 2 supporting width is back
Remove the supporting distance in channel-length direction.
S105, when the supporting height of the support frame rises to the first predetermined altitude, extract the second hydraulic support to be removed out；
The support force of support frame after movement is equal with the initial support power of support frame, before ensureing support frame movement
Rear support power is consistent, so as to fully roof supporting.
S106, when N is after removing hydraulic support and extracting out, make the support frame to close to N+1 hydraulic supports to be removed
Wipe top plate movement in direction；
S107, when the support frame wipes top plate the first pre- spacing of movement to close to the direction of N+1 hydraulic supports to be removed
From when, raise the supporting height of the support frame；
S108, when the supporting height of the support frame rises to the first predetermined altitude, extract N+1 hydraulic pressure branch to be removed out
Frame, wherein, N >=2.
The like, it is completely drawn out until will need to be removed hydraulic support, in embodiments of the present invention, can uses and return at a slow speed
Post winch extracts hydraulic support to be removed out.
Fully mechanized mining provided in an embodiment of the present invention withdraws working face fan section and withdraws method by setting supporting branch in fan section
Frame, after removing hydraulic support and extracting out, goaf top plate is supported by mobile support frame, without the artificial handling post of one beam three
Steel canopy, raising withdraw efficiency, reduce labor strength, and can reduce the consumption of individual prop, and saving withdraws cost, simultaneously
Fan section supporting machine can be made, supporting is safer, and safety work space is provided for staff and equipment.
Embodiment two
On the basis of embodiment one, the embodiment of the present invention is improved, alternatively, as shown in figure 3, S105 includes：
S201, when the supporting height of the support frame rises to the first predetermined altitude, the auxiliary frame is to close to second
Wipe top plate movement in the direction of hydraulic support to be removed；
Wherein, auxiliary frame is disposed adjacent with support frame, as shown in Fig. 2 to be disposed side by side on support frame close for auxiliary frame
The side of return channel.Auxiliary frame with auxiliary shoring bracket support fan section top plate.Auxiliary frame does not move the preceding branch to top plate
Support force is the initial support power of auxiliary frame.
S202, when the auxiliary frame wipes the mobile second pre- spacing of top plate movement to close to the direction of the second hydraulic support to be removed
From when, raise the supporting height of the auxiliary frame；
Second preset distance is the supporting width of the first hydraulic support to be removed.
S203, when the supporting height of the auxiliary frame rises to the second predetermined altitude, extract the second hydraulic support to be removed out.
The support force of auxiliary frame after movement is equal to the initial support power of auxiliary frame, and auxiliary frame is to top plate before and after ensureing movement
Support force it is always consistent, so as to fully supporting goaf top plate.
In embodiments of the present invention, as shown in figure 4, the structure of auxiliary frame is：
Auxiliary frame, which includes back timber Ce Ding mechanisms 25, base side top mechanism 27 and auxiliary frame body, auxiliary frame body, has bottom
Seat 21, back timber 23 and caving shield side guard plate 22, base 21 and back timber 23 are connected by caving shield side guard plate 22.
Back timber 23 is mainly responsible for the top in support coal seam, back timber 23 and the secondary side topmast of caving shield side guard plate 22 shield bracket support
Plate, prevent support frame sideslip in work is withdrawn.
Back timber Ce Ding mechanisms 25 include back timber side upper frame and back timber Ce Ding mechanisms very heavy 24.Back timber Ce Ding mechanisms 25 pass through pin
Axle and back timber 23 link together, and the very heavy 24 connection back timber side upper frame of back timber Ce Ding mechanisms and back timber 23, machine are pushed up by back timber side
The flexible of structure very heavy 24 manipulates the motion of back timber side upper frame.
In support frame withdraws work, back timber Ce Ding mechanisms 25 can prevent the support frame caused by back timber skew back from occurring
Mobile sideslip.
Base side top mechanism 27 includes base side upper frame and base side top mechanism very heavy 26.Base side top mechanism 27 passes through pin
Axle and base 21 link together, and the very heavy 26 connect base side upper frame of base side top mechanism and base 21, pass through base side top machine
The flexible of structure very heavy 26 manipulates the motion of base side upper frame.Base side top mechanism is mainly responsible for withdrawing work in support frame
In, prevent the base of support frame to be moved sideslip.
The operation principle of auxiliary frame：When in fan-shaped support frame, in work is withdrawn, auxiliary frame is by back timber to coal seam
Support.When support frame carries out wiping movement of roof, the back timber and caving shield side guard plate of auxiliary frame, which stretch out, carries out the to support frame
Primary side top；Support frame continues to withdraw, back timber Ce Ding mechanisms and base side top mechanism setting in motion, by support frame extension
Point and auxiliary frame body can not side top position carry out second of side top.
Pass through the very heavy control base side upper frame very heavy with back timber Ce Ding mechanisms of the base side top mechanism of auxiliary frame and back timber side
Upper frame, the offset of working face fan section support frame can be withdrawn come flexible modulation base side upper frame and top according to the fully mechanized mining of reality
The protrusion height of beam side upper frame.
Fully mechanized mining provided in an embodiment of the present invention withdraws working face fan section and withdraws method by setting auxiliary frame, can be in supporting
When support moves, side top is carried out to top plate, the deformation of top plate when reducing support frame movement, when preventing that support frame from moving
Sideslip, the mobile efficiency of support frame is improved, and then improve and withdraw efficiency；But also support frame can be controlled on auxiliary frame,
Increase the security of staff's operation.
Embodiment three
On the basis of embodiment two, the embodiment of the present invention is improved, alternatively, as shown in figure 5, S203 includes：
S301, when the supporting height of the auxiliary frame rises to the second predetermined altitude, the shield support is to close to second
Wipe top plate movement in the direction of hydraulic support to be removed；
Wherein, the shield support is disposed adjacent with auxiliary frame, and auxiliary frame is between shield support and support frame, such as
Shown in Fig. 2.Shield support is also used for the top plate in supporting fan section.Shield support can use hydraulic support.Shield support is not moving
The dynamic preceding support force to top plate is the initial support power of shield support.
S302, when the shield support wipes top plate the 3rd preset distance of movement to close to the direction of the second hydraulic support to be removed
When, raise the supporting height of the shield support；
3rd preset distance is also the supporting width of the first hydraulic support to be removed.
S303, when the supporting height of the shield support rises to three predetermined altitudes, extract the second hydraulic support to be removed out.
The support force of shield support after movement is equal with the initial support power of shield support, ensures to top plate supporting power one
Cause, so as to fully roof supporting.
In fig. 2, shield support is three, when mobile, is moved successively according to 3#-2#-1# shield supports.Shield support
Quantity can be configured according to the width of working face.
Fully mechanized mining provided in an embodiment of the present invention withdraws working face fan section and withdraws method by setting shield support, it is possible to increase
Supporting area, the deformation of top plate when reducing auxiliary frame movement, improves the mobile efficiency of auxiliary frame, and then improves and withdraw efficiency；And
And auxiliary frame can be also controlled on shield support so that staff in danger zone operation, does not increase staff's operation
Security.
Example IV
On the basis of embodiment two, the embodiment of the present invention is improved, and alternatively, the support frame includes side arm
And after-frame, as shown in fig. 6, the step of S130 and S140 includes：
S401, when first after hydraulic support extraction is removed, the side arm of the support frame is to close to the second hydraulic pressure branch to be removed
Wipe top plate movement in the direction of frame；
Side arm does not move the initial support power that the preceding support force to top plate is side arm.After-frame does not move the preceding support to top plate
Power is the initial support power of after-frame
S402, when the side arm of the support frame is pre- to top plate movement first is wiped close to the direction of the second hydraulic support to be removed
During set a distance, the supporting height of side arm of the support frame is raised to the 4th predetermined altitude；
The support force of side arm after movement is equal with the initial support power of the side arm, and side arm is to top plate before and after ensureing movement
Support force uniformity, so as to fully roof supporting.
S403, the after-frame of the support frame wipe top plate movement to close to the direction of the second hydraulic support to be removed；
S404, when the after-frame of the support frame is pre- to top plate movement first is wiped close to the direction of the second hydraulic support to be removed
During set a distance, the supporting height of after-frame of the support frame is raised to the 5th predetermined altitude.
The supporting height of the after-frame of the support frame rises to the 5th predetermined altitude so that the support force of after-frame with it is described after
The initial support power of frame is equal, ensures fully supporting goaf top plate.Wherein, the 4th predetermined altitude and the 5th predetermined altitude are equal
It is equal with the first predetermined altitude, to ensure that the supporting height of support frame is consistent.
As shown in fig. 7, the concrete structure of side arm and after-frame is as follows：
Side arm includes side arm base 1, side arm back timber 2 and preceding rack supporting device；After-frame includes after-frame base 3, after-frame back timber 4
With rear rack supporting device.
Wherein, the side arm base 1 is slidably connected with the after-frame base 3；The side arm back timber 2 and the after-frame back timber
4 are slidably connected；The side arm back timber 2 is fixed on the side arm base 1 by the preceding rack supporting device；The after-frame back timber
4 are fixed on the after-frame base 3 by the rear rack supporting device.
Track can be set on after-frame base 3, and side arm base 1 slides along track.Meanwhile it is also provided with after-frame back timber 4
Track 5, side arm back timber 2 slide along track 5.
Support frame also includes advancing jack 6, and the base end of advancing jack 6 is fixed on after-frame base 3, passage thousand
The live post end on jin top 6 is fixed on side arm base 1.During supporting, side arm back timber 2 and after-frame back timber 4 are realized by advancing jack 6
Alternating supporting.
Support frame also includes control device, and control device is very heavy by the passage of fluid pressure line and adjacent support frame
Top is connected.Control device is hand hydraulically controlled guide's adjacent-support control device, and support operation is by controlling Manual pilot in auxiliary frame
The operation handle of reversal valve, output hydraulic pressure control signal, driving commutation main valve commutation, the highly pressurised liquid of system is by commutation main valve
Valve element flows out the corresponding hydraulic jack of control support frame and performs corresponding action.Hydraulic support Manual pilot neighbour's frame control
System, the processing safety of operating personnel is improved, ensure that operating personnel fall the injury brought from fan section spoil.Equally
Ground, hand hydraulically controlled guide's adjacent-support control device is located on 3# shield supports, control auxiliary frame work, hand hydraulically controlled guide neighbour's frame
Control device is located on 2# shield supports, and control 3# shield support work, hand hydraulically controlled guide's adjacent-support control device is located at 1# and covered
Protect on support, control 2# shield support work.It is distant due to 1# shield supports and goaf, can be on 1# shield supports
Control the work of 1# shield supports.
Preceding rack supporting device includes the first column 7, the second column 8 and side arm caving shield 9；First column 7, the second column 8
It is each attached to the bottom of side arm caving shield 9 on side arm base 1, the top of the first column 7, the second column 8 and side arm caving shield 9
It is rotatablely connected with side arm back timber 2.
Preferably, the first column 7 and the second column 8 form by telescopic sleeve, and side arm caving shield 9 passes through first
Link assembly 10 is fixedly connected with side arm base 1.Telescopic sleeve can make the first column 7 and the second column 8 in upper and lower
Shrink and stretch out upwards, to meet the supporting in turn of side arm back timber 2 and after-frame back timber 4.
Further, the top of the first column 7, the second column 8 and side arm caving shield 9 passes through cross contiguous block and side arm
Back timber 2 is rotatablely connected.The effect of cross contiguous block be side arm back timber 2 can be made in the rise of the first column 7 and the second column 8 or
The height of reduction is different, and side arm back timber 2 can be made to be rotated a certain angle on left and right directions and fore-and-aft direction.The present embodiment
In, side arm back timber 2 can rotate 20 ° or so in the lateral direction, can pitch 12 ° or so in fore-and-aft direction.Side arm caving shield 9
Effect be that the side arm back timber 2 that is connected requires mobile with roof supporting as expected.
Rack supporting device includes the 3rd column 11 and after-frame caving shield 12 afterwards；The bottom of 3rd column 11 and after-frame caving shield 12
End is each attached on after-frame base 3, and the top of the 3rd column 11 and after-frame caving shield 12 is rotatablely connected with after-frame back timber 4.
Preferably, the 3rd column 11 is made up of telescopic sleeve, and after-frame caving shield 12 passes through second connecting rod component 13
It is fixedly connected with the after-frame base 3.Telescopic sleeve can make the 3rd column 11 shrink and stretch out in the vertical direction, with
Meet the supporting in turn of side arm back timber 2 and after-frame back timber 4.
Further, the top of the 3rd column 11 and after-frame caving shield 12 is by 4 turns of cross contiguous block and after-frame back timber
Dynamic connection.The effect of cross contiguous block is after-frame back timber 4 is rotated a certain angle in the lateral direction, is returned with adapting to fully mechanized mining
Remove the situation of working face fan section special roof.In the present embodiment, after-frame back timber 4 can rotate 20 ° or so in the lateral direction,
Can be by setting balance jack after-frame back timber 4 is pitched 12 ° or so in fore-and-aft direction the 3rd column 11 force.After-frame is covered
The effect of guard beam 12 and the effect of side arm caving shield 9 are similar, be in order to the after-frame back timber 4 that is connected require as expected it is mobile with
Roof supporting.
The operation principle of the support frame of the embodiment of the present invention：Before the forward movement of side arm base 1, rapid descent first is vertical
The column 8 of post 7 and second so that side arm back timber 2 departs from top plate, now 4 complete roof supporting of after-frame back timber and bottom plate.Now, after
Frame is using roof and floor as support force, and then quick manipulation advancing jack 6 stretches out, and promotes side arm base 1 to move forward；When passage thousand
After jin top 6 is fully extended, the first column 7 and the second column 8 are risen so that the Rapid contact top plate of side arm back timber 2, side arm back timber 2
Completely after support roof and floor, side arm is using roof and floor as support force, now rapid descent after-frame back timber 4 so that after-frame back timber 4 departs from
Top plate.Then advancing jack 6 is quickly packed up so that when advancing jack 6 receives completely, rise after the 3rd column 11 causes
Frame back timber 4 contacts top plate, side arm back timber 2 and after-frame back timber 4 is supported each other and is circulated for one, to meet that sector belt is special
The maintenance requirement of top plate.
When side arm and after-frame do not move forward, by auxiliary frame back timber, caving shield side guard plate carry out side top, and when after
Frame support, side arm move forward when, auxiliary frame back timber, caving shield side guard plate can not side top when, by stretching out base side top mechanism
It is very heavy, base side top mechanism is stretched out, realizes and side top is carried out to the side arm base of reach.Meanwhile push up machine by stretching out back timber side
Structure is very heavy, stretches out back timber Ce Ding mechanisms, realizes and carries out side top to the side arm back timber of reach, realizes to the side arm entirety of reach
Side is pushed up, and prevents side arm sideslip.After side arm is advanced to precalculated position, supported with side arm, draw and move after-frame, after-frame movement forward
In also by base side top mechanism and back timber Ce Ding mechanisms prevent after-frame sideslip.By that analogy, working face institute is finished until withdrawing
Need to be removed hydraulic support.
Fully mechanized mining provided in an embodiment of the present invention withdraws working face fan section and withdraws branch of the method by using side arm and after-frame
Support is protected, when side arm moves, after-frame can support the top plate in fan section, and when after-frame moves, side arm supports the top plate in fan section, can be real
Supporting is carried out to top plate all the time in existing support frame moving process, roof caving can be reduced, roof timbering efficiency is improved and withdraws
Efficiency, and the support frame can be realized and taken a step from moving, and reduce the use of other equipment, reduction withdraws cost, while uses hand
Hydrodynamic control guide's adjacent-support control device, staff is set in hazardous area operation, not improve security.
More than, technical scheme is described in detail in conjunction with specific embodiments, described specific implementation
Example is used to help understand the thought of the present invention.The derivation that those skilled in the art make on the basis of the specific embodiment of the invention
Fallen within modification within the scope of the present invention.
Claims (10)
1. a kind of fully mechanized mining withdraws working face fan section and withdraws method, it is characterised in that including：
Support frame, the support frame supporting fan section top plate are installed in fan section；
Extract the first hydraulic support to be removed out；
When first after hydraulic support extraction is removed, the support frame wipes top plate shifting to close to the direction of the second hydraulic support to be removed
It is dynamic；
When the support frame when direction for removing hydraulic support wipes top plate and moves the first preset distance, raises institute to close to second
State the supporting height of support frame；
When the supporting height of the support frame rises to the first predetermined altitude, the second hydraulic support to be removed is extracted out；
When extracting N out after hydraulic support is removed, the support frame wipes top plate shifting to close to the direction of N+1 hydraulic supports to be removed
It is dynamic；
When the support frame when direction for removing hydraulic support wipes top plate and moves the first preset distance, raises to close to N+1
The supporting height of the support frame；
When the supporting height of the support frame rises to the first predetermined altitude, N+1 hydraulic supports to be removed are extracted out, wherein, N >=
2。
2. fully mechanized mining as claimed in claim 1 withdraws working face fan section and withdraws method, it is characterised in that when the support frame
Supporting height when rising to the first predetermined altitude, extracting the second hydraulic support to be removed out includes：
When the supporting height of the support frame rises to the first predetermined altitude, the auxiliary frame is to close to the second hydraulic pressure branch to be removed
Top plate movement is wiped in the direction of frame, wherein, auxiliary frame is disposed adjacent with support frame；
When the auxiliary frame when top plate movement the second preset distance of movement is wiped in the direction for removing hydraulic support, raises to close to second
The supporting height of the auxiliary frame；
When the supporting height of the auxiliary frame rises to the second predetermined altitude, the second hydraulic support to be removed is extracted out.
3. fully mechanized mining as claimed in claim 2 withdraws working face fan section and withdraws method, it is characterised in that when the auxiliary frame
When supporting height rises to the second predetermined altitude, extracting the second hydraulic support to be removed out includes：
When the supporting height of the auxiliary frame rises to the second predetermined altitude, the shield support is to close to the second hydraulic pressure branch to be removed
Top plate movement is wiped in the direction of frame, wherein, the shield support is disposed adjacent with auxiliary frame；
When the shield support when direction for removing hydraulic support wipes top plate and moves three preset distances, raises institute to close to second
State the supporting height of shield support；
When the supporting height of the shield support rises to three predetermined altitudes, the second hydraulic support to be removed is extracted out.
4. fully mechanized mining as claimed in claim 3 withdraws working face fan section and withdraws method, it is characterised in that on the auxiliary frame
The lifting of the support frame is controlled, the lifting of the auxiliary frame is controlled on the shield support.
5. fully mechanized mining as claimed in claim 3 withdraws working face fan section and withdraws method, it is characterised in that the shield support
Quantity is 2-3, adjacent shield support parallel arrangement.
6. fully mechanized mining as claimed in claim 2 withdraws working face fan section and withdraws method, it is characterised in that when the first hydraulic pressure to be removed
After support is extracted out, the support frame wipes top plate movement to close to the direction of the second hydraulic support to be removed；When the support frame
To close to second, when the direction for removing hydraulic support wipes top plate and moves the first preset distance, the supporting for raising the support frame is high
Degree includes：
When first after hydraulic support extraction is removed, the side arm of the support frame is wiped to close to the direction of the second hydraulic support to be removed
Top plate moves；
When the support frame side arm to close to second wait remove hydraulic support direction wipe top plate move the first preset distance when,
The supporting height of the side arm of the support frame is raised to the 4th predetermined altitude；
The after-frame of the support frame wipes top plate movement to close to the direction of the second hydraulic support to be removed；
When the support frame after-frame to close to second wait remove hydraulic support direction wipe top plate move the first preset distance when,
The supporting height of the after-frame of the support frame is raised to the 5th predetermined altitude, wherein, the 4th predetermined altitude and the 5th predetermined height
Degree is equal with the first predetermined altitude.
7. fully mechanized mining as claimed in claim 6 withdraws working face fan section and withdraws method, it is characterised in that before described after mobile
The support force of frame is equal with the initial support power of the side arm, it is mobile after the after-frame support force and the after-frame it is initial
Support force is equal.
8. fully mechanized mining as claimed in claim 3 withdraws working face fan section and withdraws method, it is characterised in that the branch after mobile
Protect support support force it is equal with the initial support power of the support frame, move after the auxiliary frame support force with it is described
The initial support power of auxiliary frame is equal, the support force of the shield support after movement and the initial support power of the shield support
It is equal.
9. fully mechanized mining as claimed in claim 8 withdraws working face fan section and withdraws method, it is characterised in that the first preset distance,
Second preset distance and the 3rd preset distance are equal.
10. the fully mechanized mining as described in claim 1-9 is any withdraws working face fan section and withdraws method, it is characterised in that first treats
Remove hydraulic support and the second hydraulic support to be removed is extracted out by winch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099462.3A CN107654250B (en) | 2017-11-09 | 2017-11-09 | Fully mechanized mining withdrawing working face sector withdrawing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099462.3A CN107654250B (en) | 2017-11-09 | 2017-11-09 | Fully mechanized mining withdrawing working face sector withdrawing method |
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| CN107654250A true CN107654250A (en) | 2018-02-02 |
| CN107654250B CN107654250B (en) | 2020-03-20 |
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| CN112412515A (en) * | 2020-11-23 | 2021-02-26 | 中国矿业大学 | Frame-removing supporting method for self-moving type full-shield crushing top plate |
| WO2021093122A1 (en) * | 2019-11-15 | 2021-05-20 | 山东科技大学 | Method for reducing withdrawal roadway roof pressure at end of coal face mining |
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| Publication number | Publication date |
|---|---|
| CN107654250B (en) | 2020-03-20 |
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