CN118002300A - Coal preparation device for pulverized coal processing - Google Patents
Coal preparation device for pulverized coal processing Download PDFInfo
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- CN118002300A CN118002300A CN202410414284.2A CN202410414284A CN118002300A CN 118002300 A CN118002300 A CN 118002300A CN 202410414284 A CN202410414284 A CN 202410414284A CN 118002300 A CN118002300 A CN 118002300A
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- 239000003245 coal Substances 0.000 title claims abstract description 131
- 238000002360 preparation method Methods 0.000 title claims description 7
- 238000000926 separation method Methods 0.000 claims abstract description 141
- 238000003756 stirring Methods 0.000 claims description 23
- 230000009471 action Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 18
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 239000010878 waste rock Substances 0.000 description 13
- 238000007599 discharging Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a coal dressing device for processing and treating pulverized coal, belonging to the technical field of coal mine washing and dressing; the device comprises a low-density separation tank and a high-density separation tank which are horizontally connected, wherein a rotating assembly is arranged in the low-density separation tank and the high-density separation tank, a separation assembly is arranged at the tops of the low-density separation tank and the high-density separation tank, a material layer can be fully loosened through the rotating assembly and the separation assembly, and the movement of the pulverized coal along the length direction of the high-density separation tank is promoted to be separated; and then the middling coal and the clean coal are discharged; the device also avoids the blocking of the strip seam plate by the pulverized coal, and improves the mixing efficiency; the device can efficiently separate three products of clean coal, middling coal and gangue, and greatly improves the comprehensive utilization efficiency of coal resources.
Description
Technical Field
The invention belongs to the technical field of coal mine washing and separation, and relates to a coal separation device for processing and treating pulverized coal.
Background
The coal preparation is used as a source technology in the clean coal field, is a basic link for realizing clean and efficient utilization of coal, can greatly reduce ash content and sulfur content of raw coal, improves coal quality, optimizes a coal product structure and improves utilization efficiency. In the process of sorting the power coal, a heavy medium cyclone sorting process is generally adopted for the pulverized coal; the pulverized coal and the circulating medium enter a mixing bucket, and then are pumped into a heavy medium cyclone with a height of 20 meters above the mixing bucket through a slurry pump, and move at a high speed in the cyclone to form a centrifugal force field, so that clean coal and gangue are separated; in the process, the pulverized coal is impacted by the impeller at a high speed in the slurry pump and moves at a high speed in the conveying pipeline and the cyclone, high-speed collision is generated among particles and between particles and equipment, the surface layer or the body of the pulverized coal particles is crushed, a large amount of secondary coal slime is generated, and the amount of the secondary coal slime is 4% -6% of the feeding amount of the pulverized coal. After the coal slime is dehydrated, the moisture is still high, the external moisture is up to 23%, the effective utilization is difficult to realize, and the great resource waste is caused; the power of the slurry pump is usually up to 315kW, and the condition of high energy consumption occurs; therefore, an improvement is required in view of the above problems.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a coal dressing device for processing and treating pulverized coal.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
The coal separation device for the pulverized coal processing comprises a low-density separation tank and a high-density separation tank which are horizontally connected, wherein the low-density separation tank and the high-density separation tank are of an open-top structure, and the top of the low-density separation tank is lower than the top of the high-density separation tank; the low-density separation tank and the high-density separation tank are rotationally connected with a rotary column; the rotating column is connected with a plurality of connecting frames, and the connecting frames are rotationally connected with stirring plates; the outside of the rotary column is connected with a filter barrel with a plurality of filter holes through a transmission device, and the connecting frame and the stirring plate are positioned at the inner side of the filter barrel; a stirring plate is transversely arranged on the outer side of the filter barrel, and a plurality of equidistant holes are formed in the stirring plate, so that the pulverized coal can be conveniently stirred by the stirring plate;
the opening structures of the low-density separation tank and the high-density separation tank are respectively and rotatably connected with a separation assembly; the separation assembly comprises a rotating rod, a connecting cylinder is fixedly connected to the outer side of the rotating rod, a plurality of equidistant porous plates are longitudinally fixedly connected to the outer side of the connecting cylinder, and the separation assembly on the low-density separation tank and the high-density separation tank is used for separating gangue, middlings and clean coal;
the high-density separation tank is connected with a feeding device for adding heavy medium and pulverized coal; the bottom surface of the feeding device is connected with a plurality of slit plates, the lower sides of the slit plates are hinged with disturbance plates, and the slit plates are connected with a knocking device;
The bottom of the low-density separation tank is connected with a middling lifting device, and the bottom of the high-density separation tank is connected with a gangue lifting device.
Further, the side surfaces of the low-density separation tank and the high-density separation tank are provided with movable ports, the rotary column is rotationally connected in the movable ports, and circular adhesive tapes are arranged at the joints of the rotary column and the movable ports.
Furthermore, a plurality of connecting frames are transversely fixedly connected to two sides of the rotating column, the rotating column is fixedly connected with a first servo motor, and the first servo motor is arranged on the outer side face of the low-density separation groove.
Further, the transmission device comprises a driving gear, a driven gear and a driven inner gear ring; the low-density separating tank and the high-density separating tank are internally provided with a driving gear, the two driving gears are fixedly connected to the outer side of the rotary column, the inner wall of the filter barrel is fixedly connected with a driven inner gear ring, a driven gear is arranged between the driven inner gear ring and the driving gear, the driven gear is respectively and rotatably connected to the inner wall of one side of the low-density separating tank and the inner wall of one side of the high-density separating tank, and the driven gear is respectively meshed with the driven inner gear ring and the driving gear for transmission.
Further, a separation component is arranged at the top outlet of the low-density separation tank, and two sides of the top of the high-density separation tank are respectively provided with a separation component; and the rotating rod of the separating assembly is perpendicular to the rotating column.
Further, the feeding device comprises a feeding buffer hopper and a heavy medium buffer hopper which are communicated, and a strip slit plate is connected to the bottom surface of the feeding buffer hopper and used for filtering the pulverized coal for the first time; the lower end of the slit plate is provided with a heavy medium buffer hopper, and the upper end of the heavy medium buffer hopper is fixedly connected with the slit plate through a second flange.
Further, the knocking device comprises a plurality of U-shaped frames which are equidistantly arranged at the lower end of the slit plate, an electric pushing rod is arranged on each U-shaped frame, a knocking rod is arranged on the top surface of each electric pushing rod, one end of each knocking rod is slidably hinged to the top of the telescopic end of each electric pushing rod through an arc chute, an L-shaped support is hinged to the middle of the other end of each knocking rod, and the knocking rods are vertically movable under the action of the electric pushing rods and used for knocking the slit plate.
Further, the gangue lifting device comprises a middle coal bucket elevator and a gangue bucket elevator; the bottom of the low-density separation tank is connected with a middling collecting tank, and the bottom of the high-density separation tank is connected with a gangue collecting tank; the rear end of the middle coal bucket elevator is fixedly connected with the lower end of the middle coal collecting tank through a flange plate, and the rear end of the gangue bucket elevator is fixedly connected with the lower end of the gangue collecting tank through a flange plate.
Furthermore, a plurality of equidistant fixed frames are transversely fixedly connected on the inner conveyor belt of the middle coal bucket elevator and the gangue bucket elevator, the top surface of each fixed frame is transversely provided with a mounting groove, and a filter screen is mounted in each mounting groove.
Still further, still include the base, base top level is equipped with the bottom plate, and the equal vertical rigid coupling has first bracing piece between bottom plate and the four ends of base, and middling collecting vat and gangue collecting vat are all connected on the bottom plate.
Compared with the prior art, the invention has the following beneficial effects:
Under the action of high-density heavy medium in the high-density separation tank, the materials with the density less than that of the heavy medium in the pulverized coal float upwards to become middlings; the material with density greater than that of the heavy medium suspension is sunk to become gangue. Under the rotation action of the material layer loosening wheel, the material layer is fully loosened, and the movement of the pulverized coal along the length direction of the high-density separation groove is promoted, and the pulverized coal is separated; discharging the middlings through a high-density separation discharge wheel, and discharging the clean coal through a low-density separation discharge wheel; then the medium coal and the gangue are conveyed and collected by the medium coal bucket elevator and the gangue bucket elevator; the strip seam plate is knocked by the cooperation of the electric pushing bar and the knocking rod, so that the upper end coal is convenient to fall; by matching the strip seam plate and the disturbance plate, the strip seam plate is prevented from being blocked by the pulverized coal, and the mixing efficiency is improved; the device can efficiently separate three products of clean coal, middling coal and gangue, and greatly improves the comprehensive utilization efficiency of coal resources.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic diagram of the overall rear perspective structure of the present invention;
FIG. 3 is a schematic perspective view of a separator tank according to the present invention;
FIG. 4 is a perspective view of a filter vat and a part of the components of the present invention;
FIG. 5 is a perspective view of a rotating assembly according to the present invention;
FIG. 6 is a schematic bottom perspective view of the feed buffer hopper of the present invention;
FIG. 7 is a schematic perspective view of a separator assembly according to the present invention;
FIG. 8 is a schematic perspective view of a fixed frame and a filter screen according to the present invention;
FIG. 9 is a schematic perspective view of a striking mechanism according to the present invention;
FIG. 10 is an enlarged schematic view of the structure of the portion A in FIG. 2 according to the present invention;
FIG. 11 is an enlarged view of the structure of the portion B in FIG. 6 according to the present invention.
In the figure:
1. A base; 2. a first support bar; 3. a bottom plate; 4. a second support bar; 5. a middling collecting tank; 6. a gangue collecting groove; 7. a first flange; 8. a low density separation tank; 9. a high-density separation tank; 10. a rotating column; 11. a first servo motor; 12. a connection frame; 13. an agitating plate; 14. a circular adhesive tape; 15. a heavy medium buffer bucket; 16. a second flange; 17. a feeding buffer hopper; 18. a slit plate; 19. a material layer loosening wheel; 20. a high-density separation discharge wheel; 21. a low-density separation discharge wheel; 22. a rotating rod; 23. a connecting cylinder; 24. a porous plate; 25. a second servo motor; 26. a middle coal bucket elevator; 27. gangue bucket elevator; 28. a fixed frame; 29. a filter screen; 30. a third support bar; 31. a U-shaped frame; 32. an electric pushing bar; 33. knocking a rod; 34. an L-shaped bracket; 35. a disturbance plate; 36. a filter vat; 37. a drive gear; 38. a driven inner gear ring; 39. a driven gear; 40. stirring plate.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail by combining the embodiments and the drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. The following describes the technical scheme of the present invention in detail with reference to examples and drawings, but the scope of protection is not limited thereto.
Referring to fig. 1 to 11, the present embodiment provides a coal dressing apparatus for pulverized coal processing, comprising a base 1, a support part assembly being facilitated by the base 1; the upper end of the rear part of the base 1 is horizontally provided with a bottom plate 3, and the bottom plate 3 is convenient for supporting a middling collecting tank 5 and a gangue collecting tank 6; a first supporting rod 2 is vertically fixedly connected between the bottom plate 3 and the four ends of the base 1, and the bottom plate 3 is conveniently supported by the first supporting rod 2; the left side and the right side of the upper end of the bottom plate 3 are respectively provided with a middling collecting tank 5 and a gangue collecting tank 6, and middling and gangue can be conveniently collected through the middling collecting tank 5 and the gangue collecting tank 6; the upper end of the middle coal collecting tank 5 on the left side is provided with a low-density separating tank 8, and the middle coal and the clean coal are conveniently separated through the low-density separating tank 8; the upper end of the gangue collecting groove 6 on the right side is provided with a high-density separating groove 9, and the gangue and part of coal are conveniently separated through the high-density separating groove 9; the low-density separation tank 8 and the high-density separation tank 9 are of an open-top structure; the low-density separation tank 8 and the high-density separation tank 9 are fixedly connected to the medium coal collecting tank 5 and the waste rock collecting tank 6 respectively through the first flange 7, and the medium coal collecting tank 5 and the low-density separation tank 8 are connected conveniently through the first flange 7, and the waste rock collecting tank 6 and the high-density separation tank 9 are connected; a second supporting rod 4 is vertically fixedly connected between the bottom surface of the first flange 7 and the four ends of the top surface of the bottom plate 3, and the low-density separation groove 8 and the high-density separation groove 9 are conveniently supported through the second supporting rod 4; the upper end behind the base 1 is provided with a rotating component and a separating component, and the upper end in front of the base 1 is provided with a conveying component.
The rotating assembly comprises movable ports transversely arranged on the side surfaces of the low-density separation tank 8 and the high-density separation tank 9, and a rotating column 10 is convenient to install through the movable ports; a rotating column 10 is arranged in the movable opening, and the connecting frame 12 is convenient to connect and rotate through the rotating column 10; the rotary column 10 is rotationally connected with the low-density separation tank 8 and the high-density separation tank 9, circular adhesive tapes 14 are arranged at the joints of the rotary column 10 and the movable port, and water leakage at the joints of the low-density separation tank 8, the high-density separation tank 9 and the rotary column 10 is prevented by the circular adhesive tapes 14; a plurality of equidistant connecting frames 12 are transversely arranged in the low-density separating groove 8 and the high-density separating groove 9, the connecting frames 12 are rotatably connected with stirring plates 13, and the connecting frames 12 are convenient for connecting and rotating the stirring plates 13; the low-density separation tank 8 and the inside of the high-density separation tank 9 are sufficiently stirred by the stirring plate 13; the stirring plate 13 is longitudinally and rotatably connected in the connecting frame 12, the connecting frame 12 is transversely and fixedly connected to two sides of the rotary column 10, a first servo motor 11 is fixedly connected to the left side of the rotary column 10, and the rotary column 10 can be conveniently rotated through the first servo motor 11; the first servomotor 11 is mounted on the left end outer side surface of the low density separation tank 8.
The filter barrels 36 are transversely and rotatably connected to the left inner walls of the low-density separation tank 8 and the high-density separation tank 9, and the powder coal is conveniently impacted by water through the filter barrels 36, so that the powder coal is scattered; the filter vat 36 is arranged on the outer side of the rotary column 10, and the connecting frame 12 and the stirring plate 13 are positioned on the inner side of the filter vat 36; a stirring plate 40 is transversely arranged on the outer side of the filter vat 36, and the stirring plate 40 is used for conveniently stirring the pulverized coal; the stirring plate 40 is provided with a plurality of equidistant holes, and a driving gear 37 is arranged in each of the low-density separation tank 8 and the high-density separation tank 9, so that a driven gear 39 can be conveniently rotated through the driving gear 37; the driving gear 37 is fixedly connected to the outer side of the rotary column 10, the inner wall of the left side of the filter vat 36 is fixedly connected with a driven inner gear ring 38, and the filter vat 36 can be conveniently rotated through the driven inner gear ring 38; a driven gear 39 is arranged between the driven inner gear ring 38 and the driving gear 37, and the driven inner gear ring 38 can be conveniently rotated through the driven gear 39; the driven gear 39 is respectively rotatably connected to the inner walls of one side of the low-density separation tank 8 and one side of the high-density separation tank 9; the driven gear 39 is meshed with the driven ring gear 38 and the driving gear 37, respectively.
The separating assembly comprises a material layer loosening wheel 19 which is longitudinally and rotatably connected to the top surface of the right side of the high-density separating groove 9, and the medium coal is conveniently and fully loosened through the material layer loosening wheel 19; the material layer loosening wheel 19 is arranged on the left side of the heavy medium buffer hopper 15, the left side of the material layer loosening wheel 19 is longitudinally provided with a high-density separation discharging wheel 20, and the medium coal is discharged through the high-density separation discharging wheel 20; the high-density separation discharge wheel 20 is rotatably connected to the left top surface of the high-density separation tank 9, and a low-density separation discharge wheel 21 is longitudinally arranged at the left side of the high-density separation discharge wheel 20, and the clean coal is discharged through the low-density separation discharge wheel 21; the low-density separating discharge wheel 21 is rotatably connected to the left-side top surface of the low-density separating tank 8.
In the invention, the material layer loosening wheel 19, the high-density separation discharging wheel 20 and the low-density separation discharging wheel 21 have the same structure and comprise a rotating rod 22, the rotating rod 22 of the material layer loosening wheel 19 and the rotating rod 22 of the high-density separation discharging wheel 20 are rotatably connected to the top surface of the high-density separation groove 9, and the rotating rod 22 of the low-density separation discharging wheel 21 is rotatably connected to the top surface of the low-density separation groove 8. The outer side of the rotating rod 22 is fixedly connected with a connecting cylinder 23, the outer side of the connecting cylinder 23 is longitudinally fixedly connected with a plurality of equidistant porous plates 24, and the connecting cylinder 23 is convenient to rotate through the rotating rod 22; the porous plate 24 is conveniently connected through the connecting cylinder 23; the separation of gangue, middlings and clean coal is facilitated by a perforated plate 24; the rear end of the rotating rod 22 is fixedly connected with a second servo motor 25, and the rotating rod 22 can be conveniently rotated through the second servo motor 25; the material layer loosening wheel 19 and the second servo motor 25 at the rear end of the high-density separation discharging wheel 20 are arranged on the rear end surface of the high-density separation groove 9, and the second servo motor 25 of the low-density separation discharging wheel 21 is arranged on the rear end surface of the low-density separation groove 8.
In the invention, the upper end of the right side of the high-density separation tank 9 is provided with the feeding buffer hopper 17, and the pulverized coal is conveniently poured in through the feeding buffer hopper 17; a slit plate 18 is longitudinally fixedly connected to the bottom surface of the feeding buffer hopper 17, and the first filtering is facilitated through the slit plate 18; the lower end of the slit plate 18 is provided with a heavy medium buffer hopper 15, and heavy medium is conveniently poured into the heavy medium buffer hopper 15; the upper end of the heavy medium buffer bucket 15 is fixedly connected with the strip slit plate 18 through a second flange 16, and the strip slit plate 18 is conveniently connected with the heavy medium buffer bucket 15 through the second flange 16; and the lower end of the heavy medium buffer hopper 15 is longitudinally installed on the top surface of the right side of the high density separation tank 9.
The lower end of the slit plate 18 is longitudinally provided with a plurality of equidistant U-shaped frames 31, and the electric push rod 32 is convenient to install through the U-shaped frames 31; an electric pushing bar 32 is vertically arranged in the middle of the inner side of the U-shaped frame 31, and the knocking rod 33 is conveniently pushed by the electric pushing bar 32; the top surface of the electric pushing bar 32 is provided with a knocking rod 33, and the upper seam plate 18 is knocked by the knocking rod 33, so that the falling of the pulverized coal is facilitated, and the pulverized coal is prevented from blocking the seam plate 18; an arc chute is formed in one end of the knocking rod 33, one end of the knocking rod 33 is slidably hinged to the top of the telescopic end of the electric pushing rod 32 through the arc chute, an L-shaped bracket 34 is hinged to the middle of the other end of the knocking rod 33, and the knocking rod 33 is conveniently supported through the L-shaped bracket 34; the lower end of the L-shaped bracket 34 is fixedly connected to the U-shaped bracket 31; the slit plate 18 is longitudinally provided with a plurality of guide openings with regular trapezoids in equidistant cross section, and the disturbance plate 35 is convenient to install through the guide openings; the front end and the rear end of the lower side of the guide opening are hinged with disturbance plates 35, and the falling of the pulverized coal is facilitated through the disturbance plates 35.
The conveying assembly comprises a middle coal bucket elevator 26 and a waste rock bucket elevator 27 which are arranged on two sides of the front upper end of the base 1, and middle coal and waste rock can be conveyed conveniently through the middle coal bucket elevator 26 and the waste rock bucket elevator 27; the rear end of the middle coal bucket elevator 26 on the left side is fixedly connected to the lower end of the middle coal collecting tank 5 through a flange plate, the rear end of the gangue bucket elevator 27 on the right side is fixedly connected to the lower end of the gangue collecting tank 6 through a flange plate, two sides of the middle parts of the middle coal bucket elevator 26 and the gangue bucket elevator 27 are connected to the top surface of the base 1 through third supporting rods 30, and the middle coal bucket elevator 26 and the gangue bucket elevator 27 are conveniently supported through the third supporting rods 30; a plurality of equidistant fixed frames 28 are transversely fixedly connected on the conveyor belts inside the middle coal bucket elevator 26 and the gangue bucket elevator 27, and a filter screen 29 is conveniently connected through the fixed frames 28; the top surface of the fixed frame 28 is transversely provided with a mounting groove, and the filter screen 29 is convenient to mount through the mounting groove; a filter screen 29 is arranged in the mounting groove; the gangue, middlings and water are conveniently filtered through the filter screen 29; the low-density separation tank 8 is 20-30cm lower than the high-density separation tank 9, and the medium coal is discharged into the low-density separation tank 8 through the low-density separation tank 8 being lower than the high-density separation tank 9 so that the high-density separation discharge wheel 20 can conveniently discharge the medium coal.
The application method of the coal dressing device for the pulverized coal processing treatment of the embodiment comprises the following steps:
Firstly, pouring the pulverized coal into a material buffer hopper 17, starting an electric pushing bar 32, supporting a knocking rod 33 through an L-shaped bracket 34 by means of up-and-down movement of the electric pushing bar 32, so as to control the knocking rod 33 to knock a slit plate 18, and when the slit plate 18 is knocked, swinging a disturbance plate 35 hinged at the lower end of the slit plate 18 back and forth to facilitate the falling of the pulverized coal and the mixing of heavy media; pouring the heavy medium into the heavy medium buffer hopper 15, so that the pulverized coal automatically flows into the high-density separation tank 9 from the feeding buffer hopper 17 together with the circulating heavy medium; when the pulverized coal and the heavy media flow into the high-density separation tank 9, the first servo motor 11 is started, the rotary column 10 is driven to rotate through the first servo motor 11, the connecting frame 12 rotates around the rotary column 10 through the rotation of the rotary column 10, when the heavy media and the pulverized coal in the high-density separation tank 9 are filled up, the stirring plate 13 in the connecting frame 12 rotates through the rotation of the connecting frame 12, when the rotary column 10 rotates, the driving gear 37 fixedly connected to the outer side of the rotary column 10 rotates, the driving gear 37 is meshed with the driven gear 39 for transmission, the driven gear 39 is meshed with the driven inner gear 38 for transmission, the driven inner gear 38 is driven to rotate, the filter vat 36 is driven to rotate, so that the heavy media and the pulverized coal are fully impacted through water flow, the lifted water body is conveniently rotated through following the rotation of the filter vat 36, the continuous impact when the filter vat 36 is filled with the pulverized coal, the pulverized coal can be evenly scattered in the repeated impact process, the subsequent separation efficiency and the fine coal rotation of the pulverized coal can be conveniently improved; simultaneously, under the action of the heavy medium, the materials with the density smaller than that of the heavy medium in the pulverized coal float upwards to become middlings; the material with density greater than that of the heavy medium suspension is sunk to become gangue.
Step two, after the inside of the high-density separation tank 9 is layered up and down, namely, the middlings float upwards and the gangue sinks; then stop first servo motor 11, make the rotary column 10 stop rotating, make heavy medium, waste rock and middling in the high density separating tank 9 stop moving, when waste rock is in high density separating tank 9 lower extreme, will fall into waste rock collecting vat 6, fall into waste rock bucket elevator 27 lower extreme again, restart the motor on the waste rock bucket elevator 27, make the conveyer belt remove, through the fixed frame 28 of rigid coupling on the conveyer belt, and the filter screen 29 of installing in the fixed frame 28, can filter out the water that the waste rock carried that conveys, only waste rock is conveyed to the upper end, then collect the waste rock that conveys, transfer to other places.
Step three, when the upper end of the high-density separation tank 9 is middling, a second servo motor 25 on the material layer loosening wheel 19 is started, a rotating rod 22 is rotated through the second servo motor 25, so that a porous plate 24 on the outer side is rotated, middling is fully loosened under the rotation action of the porous plate 24, and middling is promoted to move along the length direction of the high-density separation tank 9 and is separated; when the middlings at the upper end of the high-density separation tank 9 move to the left side edge, the second servo motor 25 on the high-density separation discharge wheel 20 is started, the porous plate 24 on the high-density separation discharge wheel 20 is rotated by the second servo motor 25, the middlings are discharged by the rotation of the porous plate 24 on the high-density separation discharge wheel 20, and the middlings fall into the low-density separation tank 8.
Step four, after the gangue and middlings in the high-density separation tank 9 are discharged, namely middlings fall into the low-density separation tank 8, the first servo motor 11 is started, and the stirring plate 13 is rotated in the same way, so that the heavy medium and middlings rotate; simultaneously, under the action of the heavy medium, the materials with the density smaller than that of the heavy medium in the middling float upwards to become clean coal; sinking middlings with density greater than that of the heavy medium suspension, and stopping the first servo motor 11 to slowly deposit the middlings inside; when the middlings sink into the middling collecting tank 5, the motor on the middling bucket elevator 26 is started, the middling is conveyed to the upper end through the conveyor belt, the middling and water are filtered through the filter screen 29 in the fixed frame 28, so that purer middling is conveyed to the upper end, collected and transported to other places. When the upper end in the low-density separation tank 8 is clean coal, the second servo motor 25 at the upper end of the low-density separation discharging wheel 21 is started to rotate the porous plate 24, so that the clean coal at the upper end of the low-density separation tank 8 is discharged, and then the clean coal is collected.
While the invention has been described in detail in connection with specific preferred embodiments thereof, it is not to be construed as limited thereto, but rather as a result of a simple deduction or substitution by a person having ordinary skill in the art to which the invention pertains without departing from the scope of the invention defined by the appended claims.
Claims (10)
1. The coal dressing device for the pulverized coal processing treatment is characterized by comprising a low-density separation tank (8) and a high-density separation tank (9) which are horizontally connected, wherein the low-density separation tank (8) and the high-density separation tank (9) are of open-top structures, and the top of the low-density separation tank (8) is lower than the top of the high-density separation tank (9); a rotary column (10) is rotatably connected in each of the low-density separation tank (8) and the high-density separation tank (9); a plurality of connecting frames (12) are connected to the rotating column (10), and stirring plates (13) are rotationally connected to the connecting frames (12); the outside of the rotary column (10) is connected with a filter vat (36) with a plurality of filter holes through a transmission device, and the connecting frame (12) and the stirring plate (13) are positioned at the inner side of the filter vat (36); a stirring plate (40) is transversely arranged on the outer side of the filter vat (36), a plurality of equidistant holes are formed in the stirring plate (40), and the stirring plate (40) is convenient for stirring the pulverized coal;
The opening structures of the low-density separation tank (8) and the high-density separation tank (9) are respectively and rotatably connected with a separation assembly; the separating assembly comprises a rotating rod (22), a connecting cylinder (23) is fixedly connected to the outer side of the rotating rod (22), a plurality of equidistant porous plates (24) are longitudinally fixedly connected to the outer side of the connecting cylinder (23), and the separating assembly on the low-density separating tank (8) and the high-density separating tank (9) is used for separating gangue, middlings and clean coal;
The high-density separation tank (9) is connected with a feeding device for feeding heavy medium and pulverized coal; the bottom surface of the feeding device is connected with a plurality of slit plates (18), the lower sides of the slit plates (18) are hinged with disturbance plates (35), and the slit plates (18) are connected with a knocking device;
the bottom of the low-density separation tank (8) is connected with a middling lifting device, and the bottom of the high-density separation tank (9) is connected with a gangue lifting device.
2. The coal dressing device for pulverized coal processing according to claim 1, wherein movable ports are formed in the side surfaces of the low-density separation tank (8) and the high-density separation tank (9), the rotary column (10) is rotatably connected in the movable ports, and circular rubber strips (14) are arranged at the joints of the rotary column (10) and the movable ports.
3. The coal dressing device for pulverized coal processing according to claim 2, characterized in that a plurality of connecting frames (12) are transversely fixedly connected to two sides of a rotating column (10), the rotating column (10) is fixedly connected with a first servo motor (11), and the first servo motor (11) is arranged on the outer side face of the low-density separation groove (8).
4. A coal dressing device for pulverized coal processing according to claim 1, characterized in that the transmission means comprises a driving gear (37), a driven gear (39) and a driven inner gear ring (38); a driving gear (37) is arranged in each of the low-density separation tank (8) and the high-density separation tank (9), and the two driving gears (37) are fixedly connected to the outer side of the rotary column (10); a driven inner gear ring (38) is fixedly connected on the inner wall of the filter barrel (36), a driven gear (39) is arranged between the driven inner gear ring (38) and the driving gear (37), the driven gear (39) is respectively connected on the inner wall of one side of the low-density separation groove (8) and the high-density separation groove (9) in a rotating way, and the driven gear (39) is respectively meshed and transmitted with the driven inner gear ring (38) and the driving gear (37).
5. The coal dressing device for the pulverized coal processing treatment according to claim 1, wherein a separation assembly is arranged at the top outlet of the low-density separation tank (8), and two separation assemblies are respectively arranged at the two sides of the top of the high-density separation tank (9); and the rotating rod (22) of the separation assembly is perpendicular to the rotating column (10).
6. The coal preparation device for the pulverized coal processing according to claim 1, wherein the feeding device comprises a feeding buffer hopper (17) and a heavy medium buffer hopper (15) which are communicated, and a strip slit plate (18) is connected to the bottom surface of the feeding buffer hopper (17) and is used for filtering the pulverized coal for the first time; the lower end of the slit plate (18) is provided with a heavy medium buffer bucket (15), and the upper end of the heavy medium buffer bucket (15) is fixedly connected with the slit plate (18) through a second flange (16).
7. The coal preparation device for pulverized coal processing according to claim 1, wherein the knocking device comprises a plurality of U-shaped frames (31) which are equidistantly arranged at the lower end of the seam plate (18), an electric pushing rod (32) is arranged on each U-shaped frame (31), a knocking rod (33) is arranged on the top surface of each electric pushing rod (32), one end of each knocking rod (33) is slidably hinged to the top of the telescopic end of each electric pushing rod (32) through an arc chute, an L-shaped bracket (34) is hinged to the middle of the other end of each knocking rod (33), and each knocking rod (33) is vertically movable under the action of each electric pushing rod (32) and used for knocking the seam plate (18).
8. The coal preparation device for pulverized coal processing according to claim 1, characterized in that the gangue lifting device comprises a middle coal bucket elevator (26) and a gangue bucket elevator (27); the bottom of the low-density separation tank (8) is connected with a middling collecting tank (5), and the bottom of the high-density separation tank (9) is connected with a gangue collecting tank (6); the rear end of the middle coal bucket elevator (26) is fixedly connected with the lower end of the middle coal collecting tank (5) through a flange plate, and the rear end of the gangue bucket elevator (27) is fixedly connected with the lower end of the gangue collecting tank (6) through a flange plate.
9. The coal preparation device for the pulverized coal processing according to claim 8, wherein a plurality of equidistant fixing frames (28) are transversely fixedly connected on the inner conveyor belt of the middle coal bucket elevator (26) and the gangue bucket elevator (27), the top surface of the fixing frames (28) is transversely provided with a mounting groove, and a filter screen (29) is mounted in the mounting groove.
10. The coal dressing device for the pulverized coal processing according to claim 8, further comprising a base (1), wherein a bottom plate (3) is horizontally arranged above the base (1), first supporting rods (2) are vertically fixedly connected between the bottom plate (3) and four ends of the base (1), and the middling collecting tank (5) and the gangue collecting tank (6) are connected to the bottom plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410414284.2A CN118002300A (en) | 2024-04-08 | 2024-04-08 | Coal preparation device for pulverized coal processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410414284.2A CN118002300A (en) | 2024-04-08 | 2024-04-08 | Coal preparation device for pulverized coal processing |
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| CN118002300A true CN118002300A (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410414284.2A Pending CN118002300A (en) | 2024-04-08 | 2024-04-08 | Coal preparation device for pulverized coal processing |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323873Y (en) * | 1998-06-12 | 1999-06-16 | 煤炭科学研究总院唐山分院 | Three-product shallow slot scraper heavy medium classifier |
| CN101444778A (en) * | 2009-01-05 | 2009-06-03 | 中国矿业大学(北京) | Dry method cull eliminator and application thereof |
| DE102010042167A1 (en) * | 2010-10-07 | 2012-04-12 | Fritz Schoppe | Method and device for separating a dust mixture into its dust components |
| CN104226458A (en) * | 2014-08-27 | 2014-12-24 | 中国矿业大学(北京) | Three-product shallow slot type dense medium sorting machine |
| CN109692756A (en) * | 2019-01-25 | 2019-04-30 | 华北科技学院 | A kind of energy-efficient shallow slot screening installation |
| CN210131793U (en) * | 2019-06-26 | 2020-03-10 | 长沙有色冶金设计研究院有限公司 | Cloth machine arranged between discharge end of roller ore washer and mineral aggregate conveyer belt |
| CN113522492A (en) * | 2021-07-09 | 2021-10-22 | 西安煤科动力科技有限公司 | Hydraulic coal slime crushing pulping machine |
| CN217164859U (en) * | 2022-03-07 | 2022-08-12 | 国家能源集团新疆能源有限责任公司 | Clean coal discharging power assisting device and shallow slot sorting machine comprising same |
-
2024
- 2024-04-08 CN CN202410414284.2A patent/CN118002300A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323873Y (en) * | 1998-06-12 | 1999-06-16 | 煤炭科学研究总院唐山分院 | Three-product shallow slot scraper heavy medium classifier |
| CN101444778A (en) * | 2009-01-05 | 2009-06-03 | 中国矿业大学(北京) | Dry method cull eliminator and application thereof |
| DE102010042167A1 (en) * | 2010-10-07 | 2012-04-12 | Fritz Schoppe | Method and device for separating a dust mixture into its dust components |
| CN104226458A (en) * | 2014-08-27 | 2014-12-24 | 中国矿业大学(北京) | Three-product shallow slot type dense medium sorting machine |
| CN109692756A (en) * | 2019-01-25 | 2019-04-30 | 华北科技学院 | A kind of energy-efficient shallow slot screening installation |
| CN210131793U (en) * | 2019-06-26 | 2020-03-10 | 长沙有色冶金设计研究院有限公司 | Cloth machine arranged between discharge end of roller ore washer and mineral aggregate conveyer belt |
| CN113522492A (en) * | 2021-07-09 | 2021-10-22 | 西安煤科动力科技有限公司 | Hydraulic coal slime crushing pulping machine |
| CN217164859U (en) * | 2022-03-07 | 2022-08-12 | 国家能源集团新疆能源有限责任公司 | Clean coal discharging power assisting device and shallow slot sorting machine comprising same |
Non-Patent Citations (2)
| Title |
|---|
| 宋万军;孙常松;马涛;蒋涵元;王世博;: "保德选煤厂南区矸石再洗系统技术改造", 煤炭工程, no. 04, 20 April 2013 (2013-04-20) * |
| 郝俊;陈开玲;: "朔中选煤厂动力煤干法筛分脱粉的可行性研究", 选煤技术, no. 03, 25 June 2016 (2016-06-25) * |
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