CN107152308A - A kind of crossheading transfer system with anti-clogging and two-stage crushing function - Google Patents
A kind of crossheading transfer system with anti-clogging and two-stage crushing function Download PDFInfo
- Publication number
- CN107152308A CN107152308A CN201710520145.8A CN201710520145A CN107152308A CN 107152308 A CN107152308 A CN 107152308A CN 201710520145 A CN201710520145 A CN 201710520145A CN 107152308 A CN107152308 A CN 107152308A
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- broken
- concession
- scraping plate
- bridge type
- bridge
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- 238000012546 transfer Methods 0.000 title claims abstract description 13
- 238000007790 scraping Methods 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 10
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000013519 translation Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 29
- 239000003818 cinder Substances 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
- B02C21/02—Transportable disintegrating plant
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/002—Crushing devices specifically for conveying in mines
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Food Science & Technology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of crossheading transfer system with anti-clogging and two-stage crushing function, it includes belt conveyor, two-stage crushing device, bridge type scraping plate stage loader, wheeled type crusher and drag conveyor, the horizontal bridge figure of the bridge type scraping plate stage loader is connected with the tail of belt conveyor, the tail horizontal load section and the drag conveyor of working face of the bridge type scraping plate stage loader are overlapped, the wheeled type crusher is located at the tail horizontal load section of bridge type scraping plate stage loader, and the two-stage crushing device is located at the horizontal bridge figure of bridge type scraping plate stage loader.The invention belongs to underground coal mine material conveying crushing technology field, this large volume broken coal block that there is the crossheading transfer system of anti-clogging and two-stage crushing function to be crushed to the difficulty from drag conveyor is made a concession, improve wheeled type crusher service life and production efficiency, reduce abrasion and impact of the large volume coal cinder to belt conveyor simultaneously, extension device service life, reduces production cost.
Description
Technical field
The invention belongs to underground coal mine material conveying crushing technology field, specifically refer to a kind of broken with anti-clogging and two grades
The crossheading transfer system of broken function.
Background technology
Smooth groove bridge type scraping plate stage loader is arranged on fully-mechanized mining working and crossheading machine lane junction, for fully-mechanized mining working coal
Reprinting and transport in recovery process, it is necessary to arranged with coal-winning machine, hydraulic support, drag conveyor and machine lane disintegrating machine,
Ribbon conveyer is supported the use, and its operation principle is：The drag conveyor overlap joint of one end and working face, one end and belt conveyor
Tail be connected, the coal transported on face by scrapper conveyor, after roadway floor is raised, be transferred to belt conveyor
On.
Often there is the larger difficulty of volume in the coal shipped due to scrapper conveyor and crush coal cinder, can heavy wear even puncture
The belt of belt conveyor, while features described above coal cinder, which is transferred in the uninstall process of belt conveyor, can produce greater impact,
The service life of carrying roller can be shortened, it is therefore desirable to which disintegrating machine is supported the use.Conventional breakers use fixed bearing block, do not make a concession
Function, easily blocks crusher chamber by the coal cinder of features described above, causes production not to be normally carried out, also do not have graded crushing device,
Therefore need manually to be crushed, not only reduce production efficiency and also improve maintenance cost, national colliery it is annual therefore by
Huge economic loss.
From the point of view of the present Research in presently relevant engineer applied field, to the progress of mine excavation and transportation equipment compared with
It hurry up, in particular with the development of the technologies such as computer technology, sensor technology, GPS positioning technology, coal production equipment is intelligent
Stepped up with automatization level.
The content of the invention
To solve above-mentioned existing problem, the invention provides a kind of broken with anti-clogging and two grades with graded crushing system
Broken function smooth groove bridge type scraping plate stage loader, can carry out intelligence to it in the reprinting of coal and transportation and crush, improve coal
The lump coal rate of charcoal and the robustness of coal digging and transportation system, to improve colliery economic benefit.
The technical scheme that the present invention takes is as follows：Crossheading of the present invention with anti-clogging and two-stage crushing function reprints system
System, it includes belt conveyor, two-stage crushing device, bridge type scraping plate stage loader, can make a concession wheeled type crusher and drag conveyor,
The horizontal bridge figure of the bridge type scraping plate stage loader is connected with the tail of belt conveyor, the tail of the bridge type scraping plate stage loader
Horizontal load section and the drag conveyor of working face are overlapped, described to make a concession the machine that wheeled type crusher is located at bridge type scraping plate stage loader
Tail horizontal load section, the two-stage crushing device is located at the horizontal bridge figure of bridge type scraping plate stage loader.
Wherein, bridge type scraping plate stage loader is made up of tail horizontal load section, climbing section and the part of horizontal bridge figure three, is used
Scraper chain driving scraper plate conveys the form of coal.
Further, the two-stage crushing device includes hydraulic pincer, broken hydraulic cylinder group, crushes electromagnet, crushes
Reset electromagnetic proximity switch, broken completion electromagnetic proximity switch；The hydraulic pincer is held located at the broken hydraulic cylinder group
Units end, the broken hydraulic cylinder group is horizontally disposed and the direction of motion of broken hydraulic cylinder group and the bridge type scraping plate stage loader
The scraper plate direction of motion it is vertical, one end of the hydraulic pincer is provided with the broken electromagnet, and the broken reset electromagnetism connects
Nearly switch with it is described it is broken complete electromagnetic proximity switch in the frame of described broken electromagnet one end and with the broken electricity
Magnet is in the same horizontal line.
Two-stage crushing device includes two groups of broken hydraulic cylinder, sensing detection devices etc., because the scraper plate of scraper blade elevating conveyor is transported
Scanning frequency degree is steady state value, and coal cinder reaches two-stage crushing device time after making a concession is fixed value t, when two-stage crushing device is received
Make a concession the gathering coal attrition crushing that rapid action crushes hardly possible after signal time t.
Further, the wheeled type crusher of making a concession includes broken motor, small belt pulley, transmission belt, rotational speed and torque biography
Sensor, movable axis bearing, big belt pulley, broken shaft, bearing, yielding guide rail, belt stretcher, yielding hydraulic cylinder group, yielding
Electromagnetic proximity switch is terminated, electromagnet, crushing shell is made a concession, makes a concession reset electromagnetic proximity switch and quartering hammer；The broken electromechanics
Machine can be made a concession on wheeled type crusher inwall described in being fixed on, and motor of crusher is connected with the small belt pulley, the rotational speed and torque
Sensor is located at small belt pulley one end；The yielding guide rail upper and lower side is fixed in frame, and the movable axis bearing is stuck in yielding
On guide rail, the cylinder body for making a concession hydraulic cylinder group is described to make a concession holding for hydraulic cylinder group located at that can make a concession on wheeled type crusher outer wall
Row mechanism is rigidly connected with the movable axis bearing, and the movable axis bearing is provided with the yielding electromagnet, and the yielding is whole
Only electromagnetic proximity switch and the yielding, which reset electromagnetic proximity switch and be respectively arranged on, described can make a concession moving back for wheeled type crusher inwall
Allow final position and operating position, the bearing outer ring is embedded in the movable axis bearing, inner ring coordinates with the broken shaft, institute
Broken shaft is stated above the scraper plate of the bridge type scraping plate stage loader；Described broken shaft one end is provided with the big belt pulley, described
By the transmission V belt translation between small belt pulley and the big belt pulley, the belt tension dress is additionally provided with the transmission belt
Put；The quartering hammer is bolted on the broken shaft, and the quartering hammer is located between described two bearings；It is described broken
Slashings is located at the broken shaft oblique upper, and is connected with rigidity of frame.
Motor drives broken shaft and the quartering hammer on broken shaft to rotate at a high speed by belt pulley and transmission belt,
Quartering hammer hammering coal cinder makes it hit crushing shell, reaches the purpose of broken coal cinder, broken shaft passes through bearing and movable axis bearing phase
Even, movable axis bearing is rigidly connected with yielding hydraulic cylinder and can make a concession guide rail movement in the driving lower edge for making a concession hydraulic cylinder, works as hair
Raw difficult broken gathering coal is blocked when can make a concession wheeled type crusher, and torque and speed sensorses monitor rotational speed and torque exceptional value, move back
Allow hydraulic cylinder to act, the broken gathering coal of hardly possible is made a concession, rotational speed and torque recovers after normal value, make a concession Driven by Hydraulic Cylinder movable
Bearing block rapidly returns back to working position.
Using having the beneficial effect that the said structure present invention is obtained：This programme has anti-clogging and two-stage crushing function
Crossheading transfer system reasonable in design, it is easy to operate, the large volume broken coal block that the difficulty from drag conveyor is crushed is carried out
Make a concession, raising can make a concession wheeled type crusher service life and production efficiency, while reducing large volume coal cinder to belt conveyor
Abrasion and impact, extension device service life reduce production cost.
Brief description of the drawings
Fig. 1 has the main structure diagram of the crossheading transfer system of anti-clogging and two-stage crushing function for the present invention；
Fig. 2 has the overlooking the structure diagram of the crossheading transfer system of anti-clogging and two-stage crushing function for the present invention；
Fig. 3 is the overlooking the structure diagram of two-stage crushing device；
Fig. 4 is that can make a concession the front view structure structural representation of wheeled type crusher；
Fig. 5 is that can make a concession the plan structure structural representation of wheeled type crusher；
Fig. 6 has the workflow diagram of the crossheading transfer system of anti-clogging and two-stage crushing function for the present invention.
Embodiment
With reference to accompanying drawing 1-6, the present invention is described in further details.
As shown in Figure 1-2, crossheading transfer system of the present invention with anti-clogging and two-stage crushing function, including Belt Conveying
Machine 1, two-stage crushing device 2, bridge type scraping plate stage loader 3, wheeled type crusher 4 and drag conveyor 5, the bridge type scraping plate can be made a concession
The horizontal bridge figure of elevating conveyor 3 is connected with the tail of belt conveyor 1, the tail horizontal load of the bridge type scraping plate stage loader 3
Section and the drag conveyor 5 of working face are overlapped, described to make a concession the tail water that wheeled type crusher 4 is located at bridge type scraping plate stage loader 3
Paperback carries section, and the two-stage crushing device 2 is located at the horizontal bridge figure of bridge type scraping plate stage loader 3.Bridge type scraping plate stage loader 2, institute
Work compound and mutual independence between wheeled type crusher 3 and the three of two-stage crushing device 4 can be made a concession by stating.
As shown in figure 3, the two-stage crushing device 2 includes hydraulic pincer 201, broken hydraulic cylinder group 202, broken electromagnetism
Iron 203, broken reset electromagnetic proximity switch 204, broken completion electromagnetic proximity switch 205；The hydraulic pincer 201 is located at institute
State the executive component end of broken hydraulic cylinder group 202, the broken hydraulic cylinder group 202 is horizontally disposed and broken hydraulic cylinder group 202
The direction of motion is vertical with the scraper plate direction of motion of the bridge type scraping plate stage loader 3, and one end of the hydraulic pincer 201 is provided with institute
Broken electromagnet 203 is stated, the broken reset electromagnetic proximity switch 204 is located at the broken completion electromagnetic proximity switch 205
In the frame of described one end of broken electromagnet 203 and with the broken electromagnet 203 in the same horizontal line.When rotational speed and torque value
When recovering normal, system starts two groups of broken hydraulic cylinder groups after timing t1, the t1 time and stretched out, two groups of hydraulic pincers 201 to
The center line of bridge type scraping plate stage loader 3 is drawn close, and the larger difficulty of volume is crushed into coal cinder attrition crushing, when the broken electromagnetism that completes is approached
It is broken when switching 205 connection to complete, crush the stopping stretching of hydraulic cylinder group 202 and simultaneously start to retract, opened when broken reset electromagnetism is close
Broken hydraulic cylinder group 202 resets when closing 204 connection, crushes and terminates.
As illustrated in figures 4-5, the wheeled type crusher 4 of making a concession includes broken motor 401, small belt pulley 402, transmission belt
403rd, torque and speed sensorses 404, movable axis bearing 405, big belt pulley 406, broken shaft 407, bearing 408, yielding guide rail
409th, belt stretcher 410, yielding hydraulic cylinder group 411, yielding terminate electromagnetic proximity switch 412, make a concession electromagnet 413, break
Slashings 414, yielding reset electromagnetic proximity switch 415 and quartering hammer 416；The motor of crusher 401 can be made a concession described in being fixed on
On the inwall of wheeled type crusher 4, motor of crusher 401 is connected with the small belt pulley 402, and the torque and speed sensorses 404 are set
In the one end of small belt pulley 402；The yielding upper and lower side of guide rail 409 is fixed in frame, and the movable axis bearing 405 is stuck in yielding
On guide rail 409, the cylinder body for making a concession hydraulic cylinder group 411 is located at and can made a concession on the outer wall of wheeled type crusher 4, the yielding hydraulic cylinder
The executing agency of group 411 is rigidly connected with the movable axis bearing 405, and the movable axis bearing 405 makes a concession electricity provided with described
Magnet 413, the yielding termination electromagnetic proximity switch 412 and the yielding reset electromagnetic proximity switch 415 are respectively arranged on described
Yielding final position and the operating position of the inwall of wheeled type crusher 4 can be made a concession, and installation site vertical direction is consistent, the bearing
408 outer rings are embedded in the movable axis bearing 405, and inner ring coordinates with the broken shaft 407, and the broken shaft 407 is located at described
Above the scraper plate of bridge type scraping plate stage loader 3, the spacing with scraper plate is adjustable；Described one end of broken shaft 407 is provided with the big belt pulley
406, it is driven between the small belt pulley 402 and the big belt pulley 406 by the transmission belt 403, on the transmission belt 403
It is additionally provided with the belt stretcher 410；The quartering hammer 416 is bolted on the broken shaft 407, described broken
Hammer 416 is located between described two bearings 408, and axial width is identical with middle part well width；The crushing shell 414 is located at described
The oblique upper of broken shaft 407, and be connected with rigidity of frame.The coal cinder that bridge type scraping plate stage loader 3 is shipped is collided and obtained with quartering hammer 416
To after certain speed, hit and fritter coal is broken into after crushing shell 414, and enter broken shaft when the larger difficulty of volume crushes coal cinder
When between 407 and the scraper plate of bridge type scraping plate stage loader 3, wheeled type crusher 4 can be made a concession easily by the broken coal cinder of large volume hardly possible
Block, so as to can not continue to crush, now torque and speed sensorses 404 detect the rotational speed and torque appearance of motor of crusher 401
Exceptional value, makes a concession hydraulic cylinder group 411 and just starts to drive the movable axis bearing 405 to move up along guide rail 409 is made a concession, broken shaft
407 become big with the spacing of the scraper plate of bridge type scraping plate stage loader 3, when rotational speed and torque value recovers normal, make a concession hydraulic cylinder group 411 and stop
Only retract and movable axis bearing 405 described in fast driving is moved down along the yielding guide rail 409, approached when making a concession reset electromagnetism
The broken shaft 407 returns to operating position when switch 415 is connected, and yielding terminates.
The present invention and embodiments thereof are described above, this description is no restricted, shown in accompanying drawing
Simply one of embodiments of the present invention, actual structure is not limited thereto.If all in all ordinary skill of this area
Personnel are enlightened by it, without departing from the spirit of the invention, are designed and the technical scheme phase without creative
As frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (3)
1. a kind of crossheading transfer system with anti-clogging and two-stage crushing function, it is characterised in that：It include belt conveyor,
Two-stage crushing device, bridge type scraping plate stage loader, wheeled type crusher and drag conveyor can be made a concession, the bridge type scraping plate stage loader
Horizontal bridge figure is connected with the tail of belt conveyor, tail horizontal load section and the working face of the bridge type scraping plate stage loader
Drag conveyor is overlapped, the tail horizontal load section for making a concession wheeled type crusher positioned at bridge type scraping plate stage loader, described two
Level breaker is located at the horizontal bridge figure of bridge type scraping plate stage loader.
2. a kind of crossheading transfer system with anti-clogging and two-stage crushing function according to claim 1, its feature exists
In：The two-stage crushing device includes hydraulic pincer, broken hydraulic cylinder group, broken electromagnet, the broken electromagnetism that resets close to opening
Close, crush completion electromagnetic proximity switch；The hydraulic pincer is located at the executive component end of the broken hydraulic cylinder group, described broken
Broken hydraulic cylinder group is horizontally disposed and the direction of motion of broken hydraulic cylinder group and the scraper plate direction of motion of the bridge type scraping plate stage loader
Vertically, one end of the hydraulic pincer is provided with the broken electromagnet, and the broken reset electromagnetic proximity switch is broken with described
It is broken to complete electromagnetic proximity switch in the frame of described broken electromagnet one end and with the broken electromagnet in same level
On line.
3. a kind of crossheading transfer system with anti-clogging and two-stage crushing function according to claim 1, its feature exists
In：The wheeled type crusher of making a concession includes broken motor, small belt pulley, transmission belt, torque and speed sensorses, movable bearing
Seat, big belt pulley, broken shaft, bearing, guide rail, belt stretcher are made a concession, hydraulic cylinder group is made a concession, makes a concession and terminate electromagnetism close to opening
Close, make a concession electromagnet, crushing shell, make a concession reset electromagnetic proximity switch and quartering hammer；The motor of crusher be fixed on it is described can
Make a concession on wheeled type crusher inwall, motor of crusher is connected with the small belt pulley, the torque and speed sensorses are located at cuticle
Belt wheel one end；The yielding guide rail upper and lower side is fixed in frame, and the movable axis bearing is stuck on yielding guide rail, described to make a concession
The cylinder body of hydraulic cylinder group located at can make a concession on wheeled type crusher outer wall, the executing agency for making a concession hydraulic cylinder group with it is described movable
Bearing block is rigidly connected, and the movable axis bearing is provided with the yielding electromagnet, the yielding terminate electromagnetic proximity switch and
The yielding reset electromagnetic proximity switch can make a concession yielding final position and the work of wheeled type crusher inwall described in being respectively arranged on
Position, the bearing outer ring is embedded in the movable axis bearing, and inner ring coordinates with the broken shaft, and the broken shaft is located at described
Above the scraper plate of bridge type scraping plate stage loader；Described broken shaft one end is provided with the big belt pulley, the small belt pulley with it is described big
By the transmission V belt translation between belt pulley, the belt stretcher is additionally provided with the transmission belt；The quartering hammer leads to
Cross and be bolted on the broken shaft, the quartering hammer is located between described two bearings；The crushing shell is located at described broken
Broken axle oblique upper, and be connected with rigidity of frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710520145.8A CN107152308A (en) | 2017-06-30 | 2017-06-30 | A kind of crossheading transfer system with anti-clogging and two-stage crushing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710520145.8A CN107152308A (en) | 2017-06-30 | 2017-06-30 | A kind of crossheading transfer system with anti-clogging and two-stage crushing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107152308A true CN107152308A (en) | 2017-09-12 |
Family
ID=59795501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710520145.8A Pending CN107152308A (en) | 2017-06-30 | 2017-06-30 | A kind of crossheading transfer system with anti-clogging and two-stage crushing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762512A (en) * | 2017-11-17 | 2018-03-06 | 北京天地玛珂电液控制系统有限公司 | Super high seam high working face once adopts complete thick Sub-Level Caving control system |
| CN109230336A (en) * | 2018-08-07 | 2019-01-18 | 兖矿集团有限公司 | A kind of coal transfer device |
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| CN2675254Y (en) * | 2004-03-11 | 2005-02-02 | 赵春青 | Automatic room given roll crusher |
| CN102198411A (en) * | 2011-03-30 | 2011-09-28 | 刘立新 | High efficient energy saving hydraulic crusher |
| CN202290161U (en) * | 2011-10-27 | 2012-07-04 | 江油晟达机电装备有限责任公司 | Recession adjusting device for gear roller of gear roller type crushing machine |
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| CN202348336U (en) * | 2011-12-09 | 2012-07-25 | 三一重型综采成套装备有限公司 | Crushing device for reversed loader, and reversed loader |
| CN105151757A (en) * | 2015-09-18 | 2015-12-16 | 宁夏天地奔牛实业集团有限公司 | System for increasing rate of downhole lump coal output |
| CN206860230U (en) * | 2017-06-30 | 2018-01-09 | 中国矿业大学 | A kind of crossheading transfer system with anti-clogging and two-stage crushing function |
-
2017
- 2017-06-30 CN CN201710520145.8A patent/CN107152308A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2675254Y (en) * | 2004-03-11 | 2005-02-02 | 赵春青 | Automatic room given roll crusher |
| CN102198411A (en) * | 2011-03-30 | 2011-09-28 | 刘立新 | High efficient energy saving hydraulic crusher |
| CN202290161U (en) * | 2011-10-27 | 2012-07-04 | 江油晟达机电装备有限责任公司 | Recession adjusting device for gear roller of gear roller type crushing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762512A (en) * | 2017-11-17 | 2018-03-06 | 北京天地玛珂电液控制系统有限公司 | Super high seam high working face once adopts complete thick Sub-Level Caving control system |
| CN109230336A (en) * | 2018-08-07 | 2019-01-18 | 兖矿集团有限公司 | A kind of coal transfer device |
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| PB01 | Publication | ||
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Application publication date: 20170912 |