CN204783105U - Utilize waste rock to fill integrated equipment in discarded tunnel in pit - Google Patents
Utilize waste rock to fill integrated equipment in discarded tunnel in pit Download PDFInfo
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- CN204783105U CN204783105U CN201520491845.5U CN201520491845U CN204783105U CN 204783105 U CN204783105 U CN 204783105U CN 201520491845 U CN201520491845 U CN 201520491845U CN 204783105 U CN204783105 U CN 204783105U
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- belt
- support body
- cylinder
- belt support
- adjusting bracket
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Abstract
The utility model discloses an utilize waste rock to fill integrated equipment in discarded tunnel in pit, including belt support body I, belt support body II and carrying bottom plate, belt support body II includes support frame and alignment jig, the alignment jig that can adjust is from top to bottom connected to the support frame, the support frame alternates in belt support body I and can stretch out and draw back back and forth in support body I, carrying bottom plate links to each other with the alignment jig, the belt bottom plate with regulation from top to bottom can be controlled in the last connection of carrying bottom plate. This belt feeder simple structure, the practicality is strong, can realize stretching out and drawing back, can solve in the tunnel distance's between waste bin and the tunnel end problem, the height -adjustable festival of belt head to be suitable for the uneven condition of height in the underworkings, adopt the board -like landing leg of skiing for the support body has fine stability, and the support body of being convenient for removes in the tunnel, can make the belt feeder front end adjust from top to bottom and adjust about with, realize adjusting the position of throwing the cash and casting, to the needs of each filling position and cast effectively.
Description
Technical field
The utility model relates to a kind of conveyor, is specifically related to a kind of the complete sets of equipment utilizing spoil to fill down-hole Abandoned Tunnel.
Background technology
Back production is carried out in colliery, exploiting field development work reaches 5000m, driving task is quite arduous, because driving speed is limited by mining assistant conveyance ability and discharge refuse total amount, for improving driving speed, solving the problem of spoil discharge, implementing spoil not gug, be filled in discarded old working nearby, alleviate the pressure of mining assistant conveyance and lifting.Namely boring head is adopted raw spoil and is transported to meeting head on of discarded old working by conveyor, and recycling throwing cash equipment carries out throwing and backfills in Abandoned Tunnel, reaches cash fast, improves the object of driving speed.
How the spoil of horizontal waste bin is filled in meeting head on of Abandoned Tunnel by a set of plant equipment, and two requirements must be reached, one, the position due to waste bin is relatively constant over a period to come, and Abandoned Tunnel is met head on because constantly being filled, its position progressively backward, namely waste bin and between meeting head on relative distance be change, therefore, the transloading equipment of designed making must be able to be convenient to stretch; Two, the spoil compactness through throwing the tunnel that cash machine was filled must reach 80%, therefore, requires that parameters when throwing the running of cash machine must reach the index of abandoned working filling required for compactness.
Summary of the invention
According to the deficiencies in the prior art, there is provided a kind of and can stretch, adapt to the Expansion belt conveyor in various tunnel, the height realizing leather belt head regulates, with being uneven in applicable underworkings, throwing cash is stablized, and the spoil of impelling position can be regulated to fill the complete sets of equipment of down-hole Abandoned Tunnel.
The link of spoil discharge refuse transhipment is, (1) raw spoil is adopted by after scraper bowl dirt loader loading belt conveyer by driving end, be transported to end about 40 meters of leaving the discarded underworkings that will be filled, claim " horizontal waste bin " place herein, interim transhipment field when filling as spoil; (2) spoil leaving horizontal waste bin in is installed in " Expansion belt conveyor " by raking loader again, then is transported on " reprinting conveyor ", is transported on " waste coal outlet belt machine (throwing cash machine) " by reprinting conveyor; (3) finally jettisoninged in Abandoned Tunnel end by throwing cash machine.
That is: scraper bowl dirt loader-belt conveyer-horizontal waste bin--raking loader-Expansion belt conveyor-reprinting conveyor-waste coal outlet belt machine-stowboard.
Scraper bowl dirt loader, belt conveyer, raking loader are existing devices, therefore according to the actual conditions at scene, invent a kind of belt transport unit integrating flexible, reprint and throw cash.
The utility model realizes by following technical scheme:
A kind of the complete sets of equipment utilizing spoil to fill down-hole Abandoned Tunnel, comprise belt support body I, belt support body II and weight tray, described belt support body II comprises bracing frame and adjusting bracket, support frame as described above connects can the adjusting bracket of up-down adjustment, support frame as described above to intert in belt support body I and can stretch back and forth in support body I, described weight tray is connected with adjusting bracket, and described weight tray connects can left and right and the belt base plate of up-down adjustment.
Described belt support body I two ends respectively arrange a follower rollers, head roll I is provided with in described belt support body I, by belt I connection for transmission between described follower rollers and head roll I, several spaced upper supporting roller frames I are provided with between described belt I and belt support body I top, several spaced subiculum roll stand I are provided with between bottom described belt I and belt support body I, both sides bottom described belt support body I respectively arrange a track, also winch is provided with in described support body I, belt support body I between described winch and belt support body II is provided with the roller I that alters course.
Described head roll I is made up of the head roll of two word orders, and described belt I walks connection from the break joint between described two head rolls, is provided with heading tape and takes turns between described head roll I and winch.
Described belt support body I is arranged with several spaced supporting legs I, and described supporting leg I end, the two sides parallel with belt support body I respectively arrange one piece of swash plate seamlessly transitted with supporting leg I bottom surface.
The upper rear end of described adjusting bracket connects bracing frame by bearing pin VI, the rear end lower of described adjusting bracket is connected on the elongated hole plate on bracing frame by bearing pin VII, described adjusting bracket front end is provided with head roll II, the rear end of support frame as described above is provided with back roll, described head roll II and back roll are by belt II connection for transmission, several spaced upper supporting roller frames II are provided with between described belt II and the top of belt support body II, several spaced subiculum roll stand II are provided with between described belt II and the bottom of belt support body II, be provided with some to rail wheel bottom support frame as described above, support frame as described above is provided with changed course roller II.
The front end of support frame as described above is provided with belt pressure wheel, and the front end upper wall in bracing frame is provided with heading tape roller.
The front end place of described adjusting bracket is provided with can the supporting leg II of up-down adjustment.
The front end of described adjusting bracket is also provided with discharge hopper.
Two ends on described belt base plate respectively arrange a cylinder, be respectively cylinder I and cylinder II, connected by belt III between described cylinder I and cylinder II, described belt III time, several support roller devices are arranged at intervals with between cylinder I and cylinder II, also comprise oil cylinder I and oil cylinder II, described weight tray is provided with adjustment rotating disk, described regulating rotary disk activity connects the bottom of belt base plate, described oil cylinder I one end is movably connected in and regulates on rotating disk, oil cylinder I other end is movably connected on weight tray by support II, described oil cylinder II one end is movably connected in and regulates on rotating disk, oil cylinder II other end is movably connected in the top of belt base plate.
Described belt III is arranged at intervals with several arches and passes band, described passing band is bolted on belt by pressure zone.
The utility model beneficial effect:
This conveyor structure is simple, practical, can realize stretching, the problem that the spacing that can solve waste bin and tunnel end in tunnel changes, ensure that under the prerequisite of not moving telescopic conveyor, the digging footage requirement of a day can be met, within namely one day, only need moving telescopic conveyor once, if can not realize stretching, then prop drawer need be utilized every day to repeat whole equipment to move 6-7 time backward; Leather belt head Height Adjustable, with the situation that is uneven in applicable underworkings; Adopt the supporting leg of Skis type, make support body have good stability, be convenient to support body and move in tunnel; Conveyor front end up-down adjustment and left and right adjusting can be made, realize regulating the position of throwing cash impelling, impelling is effectively carried out to the needs of each filling position.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is belt support body I and bracing frame syndeton schematic diagram;
Fig. 3 is belt support body II indentation schematic diagram in belt support body I;
Fig. 4 is that belt support body II stretches out schematic diagram in belt support body I;
Fig. 5 is bracing frame and adjusting bracket connection diagram;
Fig. 6 is bracing frame and adjusting bracket junction enlarged diagram;
Fig. 7 is weight tray and belt base arrangement schematic diagram;
Fig. 8 is for passing band structure schematic diagram;
1-pivot pin I, 2-regulate rotating disk, 3-oil cylinder I, 4-oil cylinder II, 5-motor, 6-support I, 7-weight tray, 8-fastening bolt I, 9-pass band, 10-support roller device, 11-cylinder I, 12-cylinder II, 13-belt base plate, 14-support II, 15-belt III, 16-carriage, 17-fastening bolt II, 18-pin shaft II, 19-pin shaft III, 20-bearing pin IV, 21-bearing pin V, 22-pressure zone bolt, 23-band iron, 101-belt support body I, 102-track, 103-follower rollers, 104-winch, 105-head roll I, 106-changed course roller I, 107-belt I, 108-upper supporting roller frame I, 109-subiculum roll stand I, 110-heading tape is taken turns, 111-supporting leg I, 112-swash plate, 113-wire rope, 201-belt support body II, 202-bracing frame, 203-adjusting bracket, 204-bearing pin VI, 205-bearing pin VII, 206-elongated hole plate, 207-head roll II, 208-back roll, 209-belt II, 210-rail wheel, 211-upper supporting roller frame II, 212-subiculum roll stand II, 213-belt pressure wheel, 214-supporting leg II, 215-heading tape roller, 216-changed course roller II, 217-discharge hopper, 218-bolt.
Detailed description of the invention
Below in conjunction with accompanying drawing, by specific embodiment, technical solutions of the utility model are described further.
As shown in Figures 1 to 8, a kind of the complete sets of equipment utilizing spoil to fill down-hole Abandoned Tunnel, comprise belt support body I 101, belt support body II 201, belt support body I 101 is long is 24m, belt support body II 201 comprises bracing frame 202 and adjusting bracket 203, bracing frame 202 is long is 18m, adjusting bracket 203 is long is 4m, bracing frame 202 to intert in belt support body I 101 and can stretch back and forth in support body I 101, belt support body I 101 two ends respectively arrange a follower rollers 103, head roll I 105 is provided with in belt support body I 101, by belt I 107 connection for transmission between follower rollers 103 and head roll I 105, head roll I 105 is made up of the head roll of two word orders, distance is left between two head rolls, belt I 107 walks connection from the break joint between two head rolls, belt I 107 from head roll bottom above through the top of a head roll below, be provided with heading tape between head roll I 105 and winch 104 and take turns 110, for belt I 107 is remained on certain height, belt support body II 201 can be made to stretch back and forth in belt support body I 101, eight spaced upper supporting roller frames I 108 are provided with between belt I 107 and belt support body I 101 top, eight spaced subiculum roll stand I 109 are provided with between bottom belt I 107 and belt support body I 101, both sides bottom belt support body I 101 respectively arrange a track 102, winch 104 is also provided with in support body I 101, belt support body I 101 between winch 104 and belt support body II 201 is provided with the roller I 106 that alters course, belt support body I 101 is arranged with six spaced supporting legs I 111, supporting leg I 111 end, the two sides parallel with belt support body I 101 respectively arrange one piece of swash plate 112 seamlessly transitted with supporting leg I 111 bottom surface, the supporting leg of this Skis type can have support body stability relatively preferably, be convenient to belt support body I 101 move in tunnel.
The upper rear end of adjusting bracket 203 connects bracing frame 202 by bearing pin VI 204, the rear end lower of adjusting bracket 203 is connected to by bearing pin VII 205 in the elongated hole of the elongated hole plate 206 on bracing frame 202, adjusting bracket 203 front end is provided with head roll II 207, the front end of adjusting bracket 203 is also provided with discharge hopper 217, the rear end of bracing frame 202 is provided with back roll 208, head roll II 207 and back roll 208 are by belt II 209 connection for transmission, eight spaced upper supporting roller frames II 211 are provided with between the top of belt II 209 and belt support body II 201, eight spaced subiculum roll stand II 212 are provided with between the bottom of belt II 209 and belt support body II 201, six pairs of rail wheels 210 are provided with bottom bracing frame 202, bracing frame 202 is provided with changed course roller II 216, the front end place of adjusting bracket 203 is provided with can the supporting leg II 214 of up-down adjustment,
The front end of bracing frame 202 is provided with belt pressure wheel 213, pushes down belt II 209 and is not enhanced for solving and departs from the problem of upper supporting roller frame II 211 when adjusting bracket 203 is heightened; Front end upper wall in bracing frame 202 is provided with heading tape roller 215, withstands belt II 209 and is not enhanced for solving and touches the problem of upper wall in bracing frame 202 when adjusting bracket 203 is heightened.
Adjusting bracket 203 connects weight tray 7, weight tray 7 adopts hull formula steel plate structure, to increase the area that lands throwing cash machine, make to throw the running of cash machine to stablize, also be convenient to mobile, weight tray 7 is provided with and regulates rotating disk 2, rotating disk 2 is regulated to connect the bottom of belt base plate 13 by bearing pin I 1, oil cylinder I 3 one end is connected to by bearing pin IV 20 and regulates on rotating disk 2, oil cylinder I 3 other end is by bearing pin V 21 connection bracket II 14, support II 14 is fixed on weight tray 7, oil cylinder I 3 elastic, drive and regulate rotating disk 2 must rotate back and forth, thus realize moving left and right of belt base plate 13, left and right adjusting angle is between-8 ° to 8 °, oil cylinder II 4 one end is connected to by pin shaft II 18 and regulates on rotating disk 2, oil cylinder II 4 other end is connected to the top of belt base plate 13 by pin shaft III 19, stretching up and down of oil cylinder II 4, realize moving up and down of belt base plate 13, up-down adjustment angle is between 13 ° to 25 °, support I 6 is provided with between the top of belt base plate 13 and weight tray 7, the stability of further increase belt base plate 13, belt base plate 13, length is 2.6m, a cylinder is fixed by fastening bolt I 8 is each in two ends on belt base plate 13, be respectively cylinder I 11 and cylinder II 12, the distance of two cylinders is 1855mm, two cylinder no-load voltage ratios are 2.4, cylinder I 11 is fixed on upper end, for driving wheel, cylinder II 12 is fixed on lower end, for driven pulley, belt base plate is welded with carriage 16 13 times, motor 5 is had in carriage 16, motor 5 be YBK
2200 type motor, drive the rotation of cylinder I 11 by the rotation of motor 5, cylinder I 11 drives cylinder II 12 to rotate by belt III 15, and belt III 15 running speed is 6.8m/s.Belt III 15 times, be arranged at intervals with eight support roller devices 10 between cylinder I 11 and cylinder II 12, every two spacing distances are 94mm, and support roller device 10 is fixed on belt base plate 13 by fastening bolt II 17.
When jettisoninging to make spoil, length reaches 7 meters, the speed that depending alone increases waste coal outlet belt III 15 is inadequate, also needs to strengthen propelling movement power when spoil is jettisoninged, therefore, waste coal outlet belt III 15 passes band 9 at interval of 60cm design and installation, passes band 9 and be fixed on belt III 15 by pressure zone bolt 22.Pass band 9 by be highly 10cm, the domes that formed after rolling up than the one piece of belt snail throwing cash machine belt III 15 narrow 25cm of length.Pushing plate is also be made by strapping, strapping flexible, easy snail volume, and rear snail volume is flexible, when spoil is pounded in push pedal, not easily assorted rotten.After material snail volume, both sides 30 band irons 23 are pushed down, after be fixed by bolts on belt.Another benefit of strapping pushing plate is adopted to be with the cylindric generation deformation of cylinder, can automatically can restore to the original state again after crossing cylinder during cylinder before and after crossing.
During use, when needing support body indentation, the rail wheel 210 of bracing frame 202 is placed on the track 102 in belt support body I 101, the rear end of bracing frame 202 is fixed to after being passed bottom changed course roller I 106 by wire rope 113 in winch 104, start winch 104, now belt support body II 201 along with wire rope 113 contraction and to the I 101 li of indentations of belt support body, when be retracted into need distance time, stop winch 104; When needing support body to stretch out, wire rope 113 on bracing frame 202 is removed, then the movable end of wire rope 113 is passed bottom changed course roller II, and then around to changed course roller II top through the rear end being fixed to bracing frame 202, start winch 104, now belt support body II 201 along with wire rope 113 contraction and stretch out outside belt support body I 101.
When raising adjusting bracket 203, loosening the bolt 218 on elongated hole plate 206, regulating the height of supporting leg II 214, make the front end of adjusting bracket 203 arrive the height preset, the bolt 218 then on fastening elongated hole plate 206; When instantly adjusting adjusting bracket 203, loosen the bolt 218 on elongated hole plate 206, regulate the height of supporting leg II 214, make the front end of adjusting bracket 203 arrive the height preset, the bolt 218 then on fastening elongated hole plate 206; According to the situation at scene, the elongated hole on elongated hole plate 206 can be split into different length, thus adjusting angle that can be maximum, the present embodiment maximum adjustable 30 ° according to the height in on-the-spot tunnel.
When needs belt base plate 13 left and right adjusting, start oil cylinder I 3, oil cylinder I 3 elastic, drive and regulate rotating disk 2 must rotate back and forth, thus realize moving left and right of belt base plate 13, left and right adjusting angle is between-8 ° to 8 °; When needs belt base plate 13 up-down adjustment, start oil cylinder II 4, stretching up and down of oil cylinder II 4, realizes moving up and down of belt base plate 13, and up-down adjustment angle is between 13 ° to 25 °.
Whole workflow is, the spoil of horizontal waste bin loads in spoil funnel by harrowing cash machine, be transported to again after transport be transported to the belt II 209 on belt support body II 201 after draining to the belt I 107 on belt support body I 101 again after transport after, carry out spoil after on the belt III 15 on belt base plate 13 and throw throwing.
This equipment can stretch, and its collapsing length scope is 3m-20m, according to the requirement of one day digging footage, throws cash system and within one day, need throw about 18 meters, full old working road.Therefore, the digging footage requirement of a day can be met under the prerequisite of not mobile belt support body I 101, within namely one day, only need mobile belt support body I 101 once.But, if whole equipment can not realize scalable, then prop drawer need be utilized every day to repeat whole throwing cash equipment to move 6-7 time backward.Prop drawer is fixed on the ground in tunnel, about 50m place after belt support body I 101, and in prop drawer, wire rope movable head is fixed on belt support body I 101.
Prop drawer is the winch that a kind of down-hole uses, and its pulling force is larger than the general winch used.During use, prop drawer is fixed on floor, tunnel, its roping support of mines, fully-mechanized mining equipment conventional, the jumbo of scraper-trough conveyer.
Oil cylinder and hydraulic cylinder, hydraulic cylinder is the linear motion type executive component that the pressure reduction on power output and piston effective area and both sides thereof is directly proportional, and its function converts hydraulic energy to mechanical energy.
Claims (10)
1. the complete sets of equipment utilizing spoil to fill down-hole Abandoned Tunnel, comprise belt support body I (101), belt support body II (201) and weight tray (7), it is characterized in that: described belt support body II (201) comprises bracing frame (202) and adjusting bracket (203), support frame as described above (202) connects can the adjusting bracket (203) of up-down adjustment, support frame as described above (202) to intert in belt support body I (101) and can stretch back and forth in support body I (101), described weight tray (7) is connected with adjusting bracket (203), described weight tray (7) is upper, and connect can the belt base plate (13) of left and right and up-down adjustment.
2. a kind of the complete sets of equipment according to claim 1, it is characterized in that: described belt support body I (101) two ends respectively arrange a follower rollers (103), head roll I (105) is provided with in described belt support body I (101), by belt I (107) connection for transmission between described follower rollers (103) and head roll I (105), several spaced upper supporting roller frames I (108) are provided with between described belt I (107) and belt support body I (101) top, several spaced subiculum roll stand I (109) are provided with between described belt I (107) and belt support body I (101) bottom, the both sides of described belt support body I (101) bottom respectively arrange a track (102), winch (104) is also provided with in described support body I (101), belt support body I (101) between described winch (104) and belt support body II (201) is provided with the roller I (106) that alters course.
3. a kind of the complete sets of equipment according to claim 2, it is characterized in that: described head roll I (105) is made up of the head roll of two word orders, described belt I (107) walks connection from the break joint between described two head rolls, is provided with heading tape and takes turns (110) between described head roll I (105) and winch (104).
4. a kind of the complete sets of equipment according to any one of claims 1 to 3 claim, it is characterized in that: described belt support body I (101) is arranged with several spaced supporting legs I (111), described supporting leg I (111) end, the two sides parallel with belt support body I (101) respectively arrange one piece of swash plate (112) seamlessly transitted with supporting leg I (111) bottom surface.
5. a kind of the complete sets of equipment according to claim 1, it is characterized in that: the upper rear end of described adjusting bracket (203) connects bracing frame (202) by bearing pin VI (204), the rear end lower of described adjusting bracket (203) is connected on the elongated hole plate (206) on bracing frame (202) by bearing pin VII (205), described adjusting bracket (203) front end is provided with head roll II (207), the rear end of support frame as described above (202) is provided with back roll (208), described head roll II (207) and back roll (208) are by belt II (209) connection for transmission, several spaced upper supporting roller frames II (211) are provided with between described belt II (209) and the top of belt support body II (201), several spaced subiculum roll stand II (212) are provided with between described belt II (209) and the bottom of belt support body II (201), support frame as described above (202) bottom is provided with some to rail wheel (210), support frame as described above (202) is provided with changed course roller II (216).
6. a kind of the complete sets of equipment according to claim 5, is characterized in that: the front end of support frame as described above (202) is provided with belt pressure wheel (213), and the front end upper wall in bracing frame (202) is provided with heading tape roller (215).
7. a kind of the complete sets of equipment according to claim 5, is characterized in that: the front end place of described adjusting bracket (203) is provided with can the supporting leg II (214) of up-down adjustment.
8. a kind of the complete sets of equipment according to any one of claim 5 to 7 claim, is characterized in that: the front end of described adjusting bracket (203) is also provided with discharge hopper (217).
9. a kind of the complete sets of equipment according to claim 1, it is characterized in that: the two ends on described belt base plate (13) respectively arrange a cylinder, be respectively cylinder I (11) and cylinder II (12), connected by belt III (15) between described cylinder I (11) and cylinder II (12), under described belt III (15), several support roller devices (10) are arranged at intervals with between cylinder I (11) and cylinder II (12), also comprise oil cylinder I (3) and oil cylinder II (4), described weight tray (7) is provided with and regulates rotating disk (2), described adjustment rotating disk (2) is flexibly connected the bottom of belt base plate (13), described oil cylinder I (3) one end is movably connected in and regulates on rotating disk (2), oil cylinder I (3) other end is movably connected on weight tray (7) by support II (14), described oil cylinder II (4) one end is movably connected in and regulates on rotating disk (2), oil cylinder II (4) other end is movably connected in the top of belt base plate (13).
10. a kind of the complete sets of equipment according to claim 9, is characterized in that: described belt III (15) is arranged at intervals with several arches and passes band (9), and described passings is with (9) to be fixed on belt (15) by pressure zone bolt (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520491845.5U CN204783105U (en) | 2015-07-09 | 2015-07-09 | Utilize waste rock to fill integrated equipment in discarded tunnel in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520491845.5U CN204783105U (en) | 2015-07-09 | 2015-07-09 | Utilize waste rock to fill integrated equipment in discarded tunnel in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783105U true CN204783105U (en) | 2015-11-18 |
Family
ID=54523173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520491845.5U Withdrawn - After Issue CN204783105U (en) | 2015-07-09 | 2015-07-09 | Utilize waste rock to fill integrated equipment in discarded tunnel in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963720A (en) * | 2015-07-09 | 2015-10-07 | 上海大屯能源股份有限公司 | Complete device used for filling underground waste roadway through gangue |
| CN113387141A (en) * | 2021-04-21 | 2021-09-14 | 太原理工大学 | Sectional type belt conveyor for unmanned working face and recycling method |
-
2015
- 2015-07-09 CN CN201520491845.5U patent/CN204783105U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963720A (en) * | 2015-07-09 | 2015-10-07 | 上海大屯能源股份有限公司 | Complete device used for filling underground waste roadway through gangue |
| CN113387141A (en) * | 2021-04-21 | 2021-09-14 | 太原理工大学 | Sectional type belt conveyor for unmanned working face and recycling method |
| CN113387141B (en) * | 2021-04-21 | 2022-10-25 | 太原理工大学 | Sectional type belt conveyor for unmanned working face and recycling method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170517 |
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| AV01 | Patent right actively abandoned |