CN117920476A - Pre-medium removing device of dense medium cyclone coal preparation system - Google Patents
Pre-medium removing device of dense medium cyclone coal preparation system Download PDFInfo
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- CN117920476A CN117920476A CN202410326631.6A CN202410326631A CN117920476A CN 117920476 A CN117920476 A CN 117920476A CN 202410326631 A CN202410326631 A CN 202410326631A CN 117920476 A CN117920476 A CN 117920476A
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- 239000003245 coal Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 238000007664 blowing Methods 0.000 claims description 6
- 239000005435 mesosphere Substances 0.000 claims description 6
- 238000013341 scale-up Methods 0.000 claims 3
- 239000002245 particle Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 17
- 239000000203 mixture Substances 0.000 abstract description 15
- 239000002994 raw material Substances 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 description 11
- 238000010992 reflux Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000886545 Leptodea leptodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The invention relates to the technical field of pre-medium removing of a coal preparation system, and discloses a pre-medium removing device of a heavy medium cyclone coal preparation system, which comprises a workbench, wherein a plurality of table legs are fixedly connected to the periphery of the bottom of the workbench respectively, supporting plates are fixedly connected to the two sides of the top of the workbench respectively, the pre-medium removing mechanism comprises an upper medium removing shell fixedly connected between the two supporting plates, a discharging hopper is communicated with the top of the upper medium removing shell, when a raw material mixture freely falls down, larger particles are blocked by the arrangement of a filter plate, raw materials are separated, an elastic plate is driven to rotate in the rotation process of a circular plate, excessive mixture accumulation is prevented, the accumulation of the bottom of the upper medium removing shell is caused, the separation efficiency of the device on the raw material mixture is enhanced, the first rotating plate drives a second material discharging plate to rotate in the rotation process of the first rotating plate, the larger particles are prevented from blocking a leakage hole, and the classification efficiency is improved.
Description
Technical Field
The invention relates to the technical field of pre-media removal of coal separation systems, in particular to a pre-media removal device of a heavy medium cyclone coal separation system.
Background
The pre-medium removing device of the dense medium cyclone coal preparation system is a device commonly used in the coal washing and selecting process and is used for realizing the separation between coal gangue and coal. The pre-dewatering device has a series of remarkable advantages of high separation precision, high recovery rate of clean coal, high single-machine processing capacity and the like, and is rapidly popularized and applied in coal preparation plants in recent years.
But current device is washing the in-process of selecting to coal, and the inside and entrance of equipment probably can take place to block up because of the granule is too big or too much, influences the normal classification and the separation of material to influence the separation efficiency of device, the medium volume that the equipment needs to use is bigger, and medium can outwards discharge simultaneously with coal after carrying out a separation, can not carry out recycle to the medium, has wasted a large amount of working costs.
Disclosure of Invention
The invention aims to provide a pre-medium removing device of a dense medium cyclone coal dressing system, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention relates to a pre-medium removing device of a dense medium cyclone coal dressing system, which comprises a workbench, wherein a plurality of table legs are respectively and fixedly connected to the periphery of the bottom of the workbench, supporting plates are respectively and fixedly connected to the two sides of the top of the workbench, the pre-medium removing device further comprises a pre-medium removing mechanism, the pre-medium removing mechanism comprises an upper medium removing shell fixedly connected between the two supporting plates, the top of the upper medium removing shell is communicated with a discharging hopper, the bottom of the upper medium removing shell is communicated with an arc-shaped shell, one end of the arc-shaped shell, far away from the upper medium removing shell, is communicated with a lower medium removing shell, and the bottom of the workbench is provided with an auxiliary assembly.
The auxiliary assembly comprises a motor fixedly connected to the center of the bottom of the workbench, the output end of the motor is fixedly connected with a rotating shaft, one end of the rotating shaft penetrates through the workbench and extends to the inside of the lower shell, a gear is sleeved on the outer wall of one end of the rotating shaft and fixedly connected with the outer wall of the rotating shaft, and the gear is arranged in the inside of the lower shell.
One end cover that the axis of rotation is close to the gear establishes and fixedly connected with a plurality of centrifugal fan, and one end cover that the centrifugal fan is close to the axis of rotation establishes and fixedly connected with strain the shell, and the centrifugal fan sets up in the inside of straining the shell, takes off the inner wall top sliding connection of mesosphere down and has the buoyancy ring, and the top fixedly connected with internal tooth board of buoyancy ring, the one side that the internal tooth board kept away from the buoyancy ring are around fixedly connected with a plurality of first row flitch respectively.
The inner wall of arc shell is provided with the separation subassembly, and the separation subassembly includes the filter plate of fixed connection at the arc shell inner wall, and the one end fixedly connected with first rotor plate of motor is kept away from to the axis of rotation, and one side fixedly connected with rotor block of axis of rotation is kept away from to first rotor plate, and the second flitch of fixedly connected with second row respectively is kept away from at the lateral wall both ends of first rotor plate, and the one end fixedly connected with plectane of first rotor plate is kept away from to the rotor block.
The outer wall of plectane is fixedly connected with a plurality of elastic plate all around respectively, and the plectane is kept away from one side of turning block and is fixedly connected with a plurality of fixed block all around respectively, and the one end that the plectane was kept away from to the fixed block rotates and is connected with the second turning plate, and one side fixedly connected with round bar that the fixed block was kept away from to the second turning plate, the spacing orifice plate of fixedly connected with is established to the pot head in the inner wall of upper shell, and the outside of spacing orifice plate is run through to the one end of round bar.
The square fan of fixedly connected with is established to the outer wall cover of round bar, and the top center department fixedly connected with round shell of spacing orifice plate, and the inner wall bottom of round shell is fixedly connected with a plurality of return spring all around respectively, and the inner wall bottom center department fixedly connected with dead lever of round shell, the one end fixedly connected with movable plate of return spring.
The inner wall cover of movable plate establishes and sliding connection is in the outer wall department of dead lever, and one side that the movable plate kept away from the reset spring is fixedly connected with a plurality of movable rod all around respectively, and the one end of movable rod runs through the circle shell and extends to the outside of circle shell, and the one end fixedly connected with toper piece that the movable plate was kept away from to the movable rod.
The outer wall of the upper shell is provided with a backflow component, the backflow component comprises a first discharging pipe communicated with one side of the bottom end of the outer wall of the upper shell, a first pneumatic valve is communicated with one side of the outer wall of the first discharging pipe, a second discharging pipe is communicated with one side of the bottom end of the outer wall of the lower shell, and a second pneumatic valve is communicated with one side of the outer wall of the second discharging pipe.
The one end of first blowing pipe and second blowing pipe all communicates there is the square shell, and the square shell is provided with two, and the bottom fixed connection of square shell is at the top of workstation, and the inner wall bottom center department fixedly connected with montant of square shell, the outer wall cover of montant is established and is contacted there is the screw sleeve, and the outer wall bottom end cover of screw sleeve is established and is rotated and be connected with the belt, and the one end of belt runs through the square shell and extends to the outside of square shell.
The one end inner wall cover that the screw thread cover was kept away from to the belt is established and is rotated and be connected with the circle axle piece, and the outer wall bottom department at the axis of rotation is established to the inner wall cover of circle axle piece and fixed connection, and the outer wall middle end cover of screw thread cover is established and threaded connection has the lift bushing, and outer wall one side intercommunication of square shell has the back flow, and the one end intercommunication of back flow is at the top that takes off the mesosphere at last, and the outer wall one end intercommunication of back flow has the backwash pump.
The invention has the following beneficial effects:
(1) According to the invention, when the raw material mixture freely falls, larger particles are blocked by the arrangement of the filter plate, the raw materials are separated, the elastic plate is driven to rotate in the rotating process of the circular plate, excessive mixture accumulation is prevented, the accumulation of the bottom of the upper shell is avoided, the separating efficiency of the device on the raw material mixture is enhanced, the first rotating plate drives the second discharging plate to rotate in the rotating process of the first rotating plate, the larger particles are prevented from blocking the leak hole of the filter plate, and the grading efficiency is improved.
(2) According to the invention, the raw material mixture and the medium are filled into the device through the discharging hopper, meanwhile, the motor is started, the motor drives the rotating shaft to rotate, the rotating shaft drives the first rotating plate to rotate, the first rotating plate drives the rotating block to rotate, the rotating block drives the circular plate to rotate, the circular plate drives the fixed block to rotate, the fixed block drives the second rotating plate to rotate, the circular rod is self-conveyed in the rotating process of the second rotating plate and drives the square fan to rotate, so that the raw material mixture is separated for the first time, the movable plate in the circular shell is elastically provided with the reset spring, the movable plate moves upwards, the movable plate drives the movable rod to move upwards, and the movable rod drives the conical block to move upwards, so that the raw material mixture at the discharging hopper is pushed, the blocking at the inlet of the discharging hopper is prevented, and the separation efficiency of the device is enhanced.
(3) According to the invention, after smaller particles enter the lower shell, the centrifugal fan is driven to rotate in the rotating process of the rotating shaft, so that the medium is centrifugally rotated, the smaller particles are separated, excessive adhesion of impurities on the surface of the particles is prevented, the buoyancy ring is moved to the upper side by buoyancy of the medium, the buoyancy ring drives the inner toothed plate to move upwards, the inner toothed plate can prevent damage caused by falling of the particles, the particles continuously fall, the weight of the particles enables the inner toothed plate to fall, when the inner toothed plate falls to the bottom, the inner toothed plate is meshed with a gear, the gear drives the inner toothed plate to rotate, and the inner toothed plate drives the first discharging plate to rotate, so that the particle discharging efficiency is accelerated, and the working efficiency of the device is improved.
(4) According to the invention, when the separation work is completed, the first pneumatic valve and the second pneumatic valve are opened, larger particles, smaller particles and media are discharged into the square shell through the first discharging pipe and the second discharging pipe, the round shaft block is driven to rotate in the rotating process of the rotating shaft, the round shaft block drives the belt to rotate, the belt drives the threaded sleeve to rotate, the lifting bushing is enabled to move upwards in the rotating process of the threaded sleeve, the particles are prevented from entering the bottom of the square shell, the media can be separated from the particles, the reflux pump is started, the reflux pump absorbs and reflux the media at the bottom of the square shell through the reflux pipe, the utilization rate of the media is enhanced, the waste of the media is reduced, and the working cost is reduced.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall frontal structure of the present invention;
FIG. 2 is a schematic diagram of the overall side half-section structure of the present invention;
FIG. 3 is a schematic view of the overall internal top view structure of the present invention;
FIG. 4 is a schematic view of the internal side structure of the present invention;
FIG. 5 is a schematic illustration of the internal side semi-cut-away structure of the present invention;
FIG. 6 is an enlarged view of FIG. 1A according to the present invention;
FIG. 7 is an enlarged view of B of FIG. 2 in accordance with the present invention;
FIG. 8 is an enlarged view of FIG. 5C in accordance with the present invention;
FIG. 9 is an enlarged view of D of FIG. 5 in accordance with the present invention;
FIG. 10 is a schematic side plan view of the inner portion of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
In the figure: 1. a work table; 2. a table leg; 3. a support plate; 4. a pre-stripping mechanism; 41. upper shell removing; 42. discharging hoppers; 43. an arc-shaped shell; 44. taking off the shell; 45. an auxiliary component; 46. a separation assembly; 47. a reflow assembly; 451. a motor; 452. a rotating shaft; 453. a gear; 454. a centrifugal fan; 455. a filter shell; 456. a buoyancy ring; 457. an inner toothed plate; 458. a first discharge plate; 461. a filter plate; 462. a first rotating plate; 463. a rotating block; 464. a circular plate; 465. a fixed block; 466. a second rotating plate; 467. a round bar; 468. square fan; 469. a limiting orifice plate; 4616. an elastic plate; 4617. a second discharge plate; 4610. a round shell; 4611. a reset spring; 4612. a fixed rod; 4613. a moving plate; 4614. a moving rod; 4615. a conical block; 471. a first discharge tube; 472. a first pneumatic valve; 473. a second discharge tube; 474. a second pneumatic valve; 475. a square shell; 476. a vertical rod; 477. a thread sleeve; 478. a belt; 479. lifting the bushing; 4710. a return pipe; 4711. a reflux pump; 4712. and a circular shaft block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment 1, please refer to fig. 1-10, the invention is a pre-medium removing device of a dense medium cyclone coal dressing system, which comprises a workbench 1, wherein a plurality of table legs 2 are fixedly connected to the periphery of the bottom of the workbench 1, and support plates 3 are fixedly connected to the two sides of the top of the workbench 1, so that the purpose of the arrangement is to clamp and fix, and the device further comprises;
The pre-medium removing mechanism 4, the pre-medium removing mechanism 4 comprises an upper medium removing shell 41 fixedly connected between two support plates 3, a discharging hopper 42 is communicated with the top of the upper medium removing shell 41, the purpose of the arrangement is to convey materials and media, an arc-shaped shell 43 is communicated with the bottom of the upper medium removing shell 41, a lower medium removing shell 44 is communicated with one end, far away from the upper medium removing shell 41, of the arc-shaped shell 43, and an auxiliary assembly 45 is arranged at the bottom of the workbench 1.
The auxiliary assembly 45 comprises a motor 451 fixedly connected to the center of the bottom of the workbench 1, a rotating shaft 452 is fixedly connected to the output end of the motor 451, one end of the rotating shaft 452 penetrates through the workbench 1 and extends to the inside of the lower shell 44, a gear 453 is sleeved on the outer wall of one end of the rotating shaft 452 and fixedly connected to the outer wall of the rotating shaft, and the gear 453 is arranged in the inside of the lower shell 44.
The one end cover that axis of rotation 452 is close to gear 453 is established and fixedly connected with a plurality of centrifugal fan 454, and centrifugal fan 454 is close to the one end cover that axis of rotation 452 is established and fixedly connected with strain shell 455, and the purpose of setting like this prevents that less granule from causing the damage to centrifugal fan 454 at whereabouts in-process, and centrifugal fan 454 sets up in the inside of straining shell 455, takes off the inner wall top sliding connection of scale shell 44 down has buoyancy ring 456, the top fixedly connected with internal tooth plate 457 of buoyancy ring 456, and one side that the internal tooth plate 457 kept away from buoyancy ring 456 is fixedly connected with a plurality of first row flitch 458 all around respectively.
The inner wall of arc shell 43 is provided with separating assembly 46, separating assembly 46 includes fixed connection at the filter plate 461 of arc shell 43 inner wall, the purpose that sets up like this is to separating the material, and the one end fixedly connected with first rotating plate 462 that motor 451 was kept away from to axis of rotation 452, one side fixedly connected with rotating block 463 that axis of rotation 452 was kept away from to first rotating plate 462, the lateral wall both ends of first rotating plate 462 are fixedly connected with second row flitch 4617 respectively, the one end fixedly connected with plectane 464 that first rotating plate 462 was kept away from to rotating block 463.
The outer wall of plectane 464 is fixedly connected with a plurality of elastic plate 4616 respectively all around, the purpose of setting like this is convenient to discharge the material, and the plectane 464 is kept away from one side of turning block 463 around fixedly connected with a plurality of fixed block 465 respectively, and the one end that the plectane 464 was kept away from to the fixed block 465 rotates and is connected with second turning plate 466, and one side that the fixed block 465 was kept away from to second turning plate 466 is fixedly connected with round bar 467, goes up the inner wall middle-end cover of taking off the mesosphere 41 and establishes and fixedly connected with spacing orifice plate 469, and spacing orifice plate 469 is run through to the one end of round bar 467 and extend to spacing orifice plate 469's outside.
The square fan 468 of fixedly connected with is established to round bar 467's outer wall cover, and limit orifice plate 469's top center department fixedly connected with round shell 4610, and round shell 4610's inner wall bottom is fixedly connected with a plurality of return spring 4611 all around respectively, and the purpose of setting like this is convenient to reset, and round shell 4610's inner wall bottom center department fixedly connected with dead lever 4612, return spring 4611's one end fixedly connected with movable plate 4613.
The inner wall cover of movable plate 4613 is established and sliding connection is in the outer wall department of dead lever 4612, and movable plate 4613 is kept away from the one side of reset spring 4611 around fixedly connected with a plurality of movable rod 4614 respectively, and the one end of movable rod 4614 runs through circle shell 4610 and extends to the outside of circle shell 4610, and the one end fixedly connected with toper piece 4615 of movable rod 4614 kept away from movable plate 4613.
The raw material mixture and the medium are filled into the device through the discharging hopper 42, the motor 451 is started simultaneously, the motor 451 drives the rotating shaft 452 to rotate, the rotating shaft 452 drives the first rotating plate 462 to rotate, the first rotating plate 462 drives the rotating block 463 to rotate, the rotating block 463 drives the circular plate 464 to rotate, the circular plate 464 drives the fixed block 465 to rotate, the fixed block 465 drives the second rotating plate 466 to rotate, the limiting hole plate 469 is limited, the round rod 467 is self-conveyed in the rotating process of the second rotating plate 466, the round rod 467 drives the square fan 468 to rotate, the raw material mixture is separated for the first time, the moving plate 4613 in the round shell 4610 is elastically provided by the reset spring 4611, the moving plate 4613 moves upwards, the moving plate 4613 drives the moving rod 4614 to move upwards, the moving rod 4614 drives the conical block 4615 to move upwards, the raw material mixture at the discharging hopper 42 is pushed, the inlet is prevented from being blocked, and the separating efficiency of the device is enhanced.
When the raw material mixture freely falls, the setting that great granule received filter plate 461 is blocked, carries out separation processing to the raw materials, and plectane 464 rotates the in-process and drives elastic plate 4616 and rotate, prevents that the mixture from piling up too much, causes the piling up of taking off the mesoscale 41 bottom on, has strengthened the separation efficiency of device to the raw material mixture, and first rotation plate 462 carries out pivoted in-process, and first rotation plate 462 drives second row flitch 4617 and rotates, prevents that great granule from blocking filter plate 461's leak hole department, has improved hierarchical efficiency.
After the inside of taking off the mesosphere 44 down is entered to less granule, can drive centrifugal fan 454 in the pivoted in-process to rotate shaft 452 to make the medium carry out centrifugal rotation, thereby carry out separation to less granule and handle, prevent that granule surface impurity from adhering to too much, buoyancy ring 456 receives the buoyancy of medium and moves to the top, buoyancy ring 456 drives interior pinion rack 457 and reciprocates, damage that causes when pinion rack 457 can prevent that the granule whereabouts, and granule constantly descends, granule self weight makes interior pinion rack 457 drop, when interior pinion rack 457 drops to the bottom, can carry out meshing contact with gear 453, gear 453 drives interior pinion rack 457 and rotates, interior pinion rack 457 drives first row of material boards 458 and rotates, thereby the efficiency of granule discharge has been accelerated, the work efficiency of device has been strengthened.
In embodiment 2, the outer wall of the upper casing 41 is provided with a backflow assembly 47, the backflow assembly 47 includes a first discharge pipe 471 communicated with one side of the bottom end of the outer wall of the upper casing 41, a first pneumatic valve 472 is communicated with one side of the outer wall of the first discharge pipe 471, the purpose of this arrangement is to control discharge of media and particles, a second discharge pipe 473 is communicated with one side of the bottom end of the outer wall of the lower casing 44, and a second pneumatic valve 474 is communicated with one side of the outer wall of the second discharge pipe 473.
The first discharging pipe 471 and the one end of the second discharging pipe 473 are all communicated with a square shell 475, the square shell 475 is provided with two, the bottom of the square shell 475 is fixedly connected to the top of the workbench 1, a vertical rod 476 is fixedly connected to the center of the bottom of the inner wall of the square shell 475, the purpose of the arrangement is to prevent the thread bush 477 from shifting, the outer wall of the vertical rod 476 is sleeved with and contacted with the thread bush 477, the bottom end of the outer wall of the thread bush 477 is sleeved with and rotationally connected with a belt 478, and one end of the belt 478 penetrates through the square shell 475 and extends to the outside of the square shell 475.
The belt 478 is kept away from the one end inner wall cover of thread bush 477 and establishes and rotates and be connected with circle axle piece 4712, and circle axle piece 4712's inner wall cover is established and fixed connection is in the outer wall bottom department of axis of rotation 452, and thread bush 477's outer wall middle-end cover is established and threaded connection has lift bushing 479, and square shell 475's outer wall one side intercommunication has back flow 4710, and back flow 4710's one end intercommunication is at the top of taking off the mesosphere 41 at last, and back flow 4710's outer wall one end intercommunication has backwash pump 4711.
When the separating device is used, when the separating work is completed, the first pneumatic valve 472 and the second pneumatic valve 474 are opened, larger particles, smaller particles and media are discharged into the square shell 475 through the first discharging pipe 471 and the second discharging pipe 473, the round shaft block 4712 is driven to rotate in the rotating process of the rotating shaft 452, the round shaft block 4712 drives the belt 478 to rotate, the belt 478 drives the threaded sleeve 477 to rotate, the lifting bushing 479 is enabled to move upwards in the rotating process of the threaded sleeve 477, the particles are prevented from entering the bottom of the square shell 475, the media can be separated from the particles, the reflux pump 4711 is started, the reflux pump 4711 absorbs and reflux the media at the bottom of the square shell 475 through the reflux pipe 4710, the utilization rate of the media is improved, the waste of the media is reduced, and the working cost is reduced.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The utility model provides a dense medium swirler coal preparation system's device of taking off in advance, includes workstation (1), its characterized in that: a plurality of table legs (2) are fixedly connected to the periphery of the bottom of the workbench (1), support plates (3) are fixedly connected to the two sides of the top of the workbench (1), and the workbench further comprises;
The pre-taking-off medium mechanism (4), take-off medium mechanism (4) in advance including fixed connection take off mesoscale (41) on between two backup pads (3), the top intercommunication that takes off mesoscale (41) on has discharge hopper (42), the bottom intercommunication that takes off mesoscale (41) on has arc shell (43), the one end intercommunication that takes off mesoscale (41) on arc shell (43) are kept away from has down to take off mesoscale (44), the bottom of workstation (1) is provided with auxiliary assembly (45).
2. The pre-media removing device of the dense medium cyclone coal dressing system according to claim 1, wherein the pre-media removing device is characterized in that: the auxiliary assembly (45) comprises a motor (451) fixedly connected to the center of the bottom of the workbench (1), the output end of the motor (451) is fixedly connected with a rotating shaft (452), one end of the rotating shaft (452) penetrates through the workbench (1) and extends to the inside of the lower shell (44), a gear (453) is sleeved on the outer wall of one end of the rotating shaft (452) and fixedly connected with the outer wall of one end of the rotating shaft, and the gear (453) is arranged in the inside of the lower shell (44).
3. The pre-media removing device of the dense-medium cyclone coal dressing system according to claim 2, wherein the pre-media removing device is characterized in that: the utility model discloses a centrifugal fan, including gear (453) and centrifugal fan, including rotation axis (452), centrifugal fan (454) are close to one end cover that gear (453) is established and fixedly connected with filter shell (455), centrifugal fan (454) set up in the inside of filter shell (455), the inner wall top sliding connection who takes off scale (44) down has buoyancy ring (456), the top fixedly connected with internal tooth plate (457) of buoyancy ring (456), one side that buoyancy ring (456) was kept away from to internal tooth plate (457) is around fixedly connected with a plurality of first row flitch (458) respectively.
4. A pre-media removal device of a dense medium cyclone coal separation system according to claim 3, wherein: the inner wall of arc shell (43) is provided with separation subassembly (46), separation subassembly (46) are including filter plate (461) of fixed connection at arc shell (43) inner wall, the one end fixedly connected with first rotor plate (462) of motor (451) are kept away from to axis of rotation (452), one side fixedly connected with rotor block (463) of axis of rotation (452) are kept away from to first rotor plate (462), lateral wall both ends of first rotor plate (462) are fixedly connected with second row flitch (4617) respectively, one end fixedly connected with plectane (464) of first rotor plate (462) are kept away from to rotor block (463).
5. The pre-media removing device of the dense medium cyclone coal dressing system according to claim 4, wherein the pre-media removing device is characterized in that: the outer wall of plectane (464) is fixedly connected with a plurality of elastic plate (4616) all around respectively, one side that rotatory piece (463) was kept away from to plectane (464) is fixedly connected with a plurality of fixed block (465) all around respectively, one end that rotatory piece (464) was kept away from to fixed block (465) rotates and is connected with second rotatory board (466), one side fixedly connected with pole (467) that fixed block (465) was kept away from to second rotatory board (466), the spacing orifice plate (469) of fixedly connected with is established to the inner wall middle-end cover of upper shell (41), the outside that spacing orifice plate (469) was run through to one end of pole (467).
6. The pre-media removing device of the dense medium cyclone coal dressing system according to claim 5, wherein the pre-media removing device is characterized in that: the square fan (468) is sleeved on the outer wall of the round rod (467) and is fixedly connected with, a round shell (4610) is fixedly connected to the top center of the limiting orifice plate (469), a plurality of reset springs (4611) are fixedly connected to the periphery of the bottom of the inner wall of the round shell (4610), a fixed rod (4612) is fixedly connected to the center of the bottom of the inner wall of the round shell (4610), and a movable plate (4613) is fixedly connected to one end of each reset spring (4611).
7. The pre-media removing device of the dense medium cyclone coal dressing system according to claim 6, wherein the pre-media removing device is characterized in that: the inner wall cover of movable plate (4613) is established and sliding connection is in the outer wall department of dead lever (4612), one side that movable plate (4613) kept away from reset spring (4611) is fixedly connected with a plurality of movable rod (4614) all around respectively, the one end of movable rod (4614) runs through circle shell (4610) and extends to the outside of circle shell (4610), one end fixedly connected with tapered block (4615) that movable rod (4614) kept away from movable plate (4613).
8. The pre-media removing device of the dense medium cyclone coal dressing system according to claim 7, wherein the pre-media removing device comprises: the outer wall that takes off scale-up (41) on is provided with backward flow subassembly (47), backward flow subassembly (47) are including the intercommunication at the first blowing pipe (471) of taking off scale-up (41) outer wall bottom one side, the outer wall one side intercommunication of first blowing pipe (471) has first pneumatic valve (472), the outer wall bottom one side intercommunication of taking off scale-up (44) down has second blowing pipe (473), the outer wall one side intercommunication of second blowing pipe (473) has second pneumatic valve (474).
9. The pre-media removing device of the dense medium cyclone coal dressing system according to claim 8, wherein the pre-media removing device is characterized in that: the utility model discloses a square shell structure is characterized in that one end of first discharging pipe (471) and second discharging pipe (473) all communicate there is square shell (475), fang Ke (475) are provided with two, the bottom fixed connection of Fang Ke (475) is at the top of workstation (1), the inner wall bottom center department fixedly connected with montant (476) of Fang Ke (475), threaded sleeve (477) have been established in the outer wall cover of montant (476) and contact, threaded sleeve (477)'s outer wall bottom cover is established and is rotated and be connected with belt (478), the outside of square shell (475) is run through to the one end of belt (478).
10. The pre-media removing device of the dense medium cyclone coal dressing system according to claim 9, wherein the pre-media removing device is characterized in that: the belt (478) is far away from the one end inner wall cover of screw sleeve (477) and is established and rotates and be connected with circle axle piece (4712), the outer wall bottom department at axis of rotation (452) is established and fixed connection to the inner wall cover of circle axle piece (4712), the outer wall middle end cover of screw sleeve (477) is established and threaded connection has lift bushing (479), the outer wall one side intercommunication of Fang Ke (475) has back flow (4710), the one end intercommunication of back flow (4710) is at the top of taking off mesosphere (41) last, the outer wall one end intercommunication of back flow (4710) has back flow pump (4711).
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