Dense medium coal dressing rewashing device
By designing a heavy medium coal preparation and re-washing device, the limit ring and drive ring structure are used to avoid heavy liquid from contacting the motor, which solves the problem of reduced motor efficiency, realizes efficient density sorting and cleaning of impurities, and improves the overall efficiency of the coal preparation process.
Patent Information
- Application Number
- CN202422403593.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the support roller is arranged inside the shell. During the coal preparation process, heavy liquid will fill the shell, causing the motor driving the support roller to be completely submerged in the heavy liquid. When used for a long time, the heavy liquid will stick to the outside of the motor or enter the inside of the motor, resulting in a decrease in motor efficiency.
A heavy medium coal preparation and re-washing device is designed, including a box, support column, rotating mechanism, limit ring, drive ring, fixed ring, rotating ring and drive assembly. Through the setting of limit ring and fixed ring, the rotating barrel is stuck in the box, and the driving component is used to drive the drive ring to rotate, thereby driving the rotating barrel to avoid heavy liquid from directly contacting the motor, and the impurities are cleaned through the brush and the nozzle to achieve density sorting.
It effectively avoids direct contact between heavy fluid and the motor, improves the efficiency of the motor, ensures efficient operation of the coal preparation process, and achieves efficient density sorting.
Smart Images
Figure CN223234539U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heavy medium coal separation, in particular to a heavy medium coal separation and rewashing device. Background Art
[0002] Heavy medium coal preparation is a separation method that uses a heavy liquid or heavy suspension with a density greater than water and intermediate between that of coal and gangue as a separation medium. This method is based on Archimedes' principle, which states that the buoyancy of particles immersed in a liquid is equal to the weight of the same volume of liquid displaced by the particles. During the heavy medium coal preparation process, clean coal with a lower density than the medium will float, while gangue or medium coal with a higher density will sink, thus achieving separation by density. The main advantages of this method include high separation efficiency, a wide particle size range, and ease of automated production control. Heavy medium coal preparation involves the use of two media: heavy liquid and heavy suspension, with heavy suspension coal preparation being widely used in industrial production.
[0003] In the prior art, a patent document with the announcement number (CN214437054U) mentions a dehydration and de-mediation screening device for use in a heavy medium coal preparation system, comprising a housing, a rotary screening mechanism, and a sieve hole clearing mechanism disposed inside the housing; wherein the rotary screening mechanism comprises a cylinder rotatably connected to the interior of the housing, and a support roller for driving the cylinder to rotate; the sieve hole clearing mechanism comprises a brush plate disposed above the cylinder and in contact with the outer peripheral surface of the cylinder, and a guide component for controlling the brush plate to reciprocate along the axial direction of the cylinder. This prior art has a reasonable structure and high practicality. While ensuring high dehydration and de-mediation efficiency, it can significantly reduce medium loss, providing feasibility for the recycling of the medium.
[0004] However, in the above-mentioned prior art, the support rollers are arranged inside the shell. During the coal preparation process, the heavy liquid will fill the shell, causing the motor driving the support rollers to be completely submerged in the heavy liquid. After long-term use, the heavy liquid will adhere to the outside of the motor or enter the inside of the motor, resulting in reduced motor efficiency. Utility Model Content
[0005] The purpose of the utility model is to provide a heavy medium coal preparation and rewashing device, which solves the problem of the prior art that the support roller is arranged inside the shell. During the coal preparation process, the heavy liquid will fill the shell, causing the motor driving the support roller to be completely submerged in the heavy liquid. After long-term use, the heavy liquid will adhere to the outside of the motor or enter the inside of the motor, resulting in reduced motor efficiency.
[0006] To achieve the above-mentioned purpose, the utility model provides a heavy medium coal washing device, comprising a box body, four support columns and a rotating mechanism, the four support columns are fixedly connected to the box body and are located at the four bottom corners of the box body, the rotating mechanism comprises a rotating barrel, two limiting rings, a driving ring, two fixing rings, two rotating rings and a driving assembly, the rotating barrel is arranged inside the box body, one end of the two limiting rings is fixedly connected to the rotating barrel, the other end of the limiting ring is rotatably connected to the box body and are respectively arranged on both sides of the rotating barrel, and the cross-section of the limiting ring is L-shaped, the driving ring is fixedly connected to the corresponding limiting ring and is located on one side of the limiting ring, the two fixing rings are respectively fixedly connected to the corresponding limiting ring and the driving ring, and are respectively arranged on both sides of the box body, the two rotating rings are respectively clamped with the corresponding fixing ring and covered on the outside of the corresponding fixing ring, and the driving assembly is arranged below the driving ring.
[0007] The drive assembly includes a mounting plate, a motor, a track and a drive wheel. The mounting plate is fixedly connected to the box and is located below the drive ring. The motor is fixedly connected to the mounting plate and is located above the mounting plate. The drive wheel is fixedly connected to the output end of the motor and is located on one side of the motor. The track is covered on the surface of the drive wheel and the drive ring.
[0008] Among them, the heavy medium coal preparation and rewashing device also includes two baffles and a leakage pipe. The two baffles are fixedly connected to the box body and are tilted below the rotating barrel. The leakage pipe is fixedly connected to the box body and is located below the box body.
[0009] Among them, the heavy medium coal preparation and rewashing device also includes a brush, several telescopic rods and several springs. One end of several of the telescopic rods is fixedly connected to the box body, and the other end of several of the telescopic rods is fixedly connected to the brush and is located above the rotating barrel. Several of the springs are covered on the surface of the corresponding telescopic rods.
[0010] Among them, the heavy medium coal preparation and rewashing device also includes a connecting pipe and several nozzles. The connecting pipe is fixedly connected to the box body and is located on one side of the brush. Several nozzles are fixedly connected to the connecting pipe and are evenly arranged on one side of the connecting pipe.
[0011] The utility model provides a heavy medium coal preparation and rewashing device, wherein the rotating barrel is arranged inside the box body, one end of the two limiting rings is fixedly connected to the rotating barrel, and the other end of the limiting ring is rotatably connected to the box body and is respectively arranged on both sides of the rotating barrel, and the cross-section of the limiting ring is L-shaped, the driving ring is fixedly connected to the corresponding limiting ring and is located on one side of the limiting ring, the two fixing rings are respectively fixedly connected to the corresponding limiting ring and the driving ring, and are respectively arranged on both sides of the box body, the two rotating rings are respectively clamped with the corresponding fixing ring and covered on the outside of the corresponding fixing ring, and the driving assembly is arranged below the driving ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0013] Figure 1 It is a structural schematic diagram of a heavy medium coal separation and rewashing device of the utility model.
[0014] Figure 2 It is a structural schematic diagram of a heavy medium coal separation and rewashing device of the utility model.
[0015] Figure 3 This utility model Figure 2 AA line structural cross-sectional view.
[0016] Figure 4 This utility model Figure 2 BB line structural cross-sectional view.
[0017] 1- box body, 2- support column, 3- baffle, 4- leakage pipe, 5- brush, 6- telescopic rod, 7- spring, 8- connecting pipe, 9- nozzle, 10- rotating barrel, 11- limiting ring, 12- driving ring, 13- fixing ring, 14- rotating ring, 15- mounting plate, 16- motor, 17- crawler, 18- driving wheel. DETAILED DESCRIPTION
[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0019] See also Figures 1 to 4 ,in, Figure 1This is a structural diagram of the heavy medium coal washing device of the utility model. Figure 2 This is a structural diagram of the heavy medium coal washing device of the utility model. Figure 3 This utility model Figure 2 AA line structural cross-sectional view, Figure 4 This utility model Figure 2 BB line structural cross-sectional view.
[0020] The utility model provides a heavy medium coal preparation and rewashing device, comprising a box body 1, four support columns 2, two baffles 3 and a leakage pipe 4, a brush 5, a plurality of telescopic rods 6, a plurality of springs 7, a connecting pipe 8, a plurality of nozzles 9 and a rotating mechanism, wherein the rotating mechanism comprises a rotating barrel 10, two limit rings 11, a driving ring 12, two fixed rings 13, two rotating rings 14 and a driving assembly, wherein the driving assembly comprises a mounting plate 15, a motor 16, a crawler 17 and a driving wheel 18. The above-mentioned solution solves the problem of the prior art that the support rollers are arranged inside the shell. During the coal preparation process, the heavy liquid will fill the shell, causing the motor driving the support rollers to be completely submerged in the heavy liquid. After long-term use, the heavy liquid will adhere to the outside of the motor or enter the inside of the motor, resulting in reduced motor efficiency.
[0021] According to this specific embodiment, the four support columns 2 are fixedly connected to the box body 1 and are located at the four bottom corners of the box body 1. The rotating barrel 10 is arranged inside the box body 1. One end of the two limiting rings 11 is fixedly connected to the rotating barrel 10, and the other end of the limiting ring 11 is rotatably connected to the box body 1 and is respectively arranged on both sides of the rotating barrel 10, and the cross section of the limiting ring 11 is L-shaped. The driving ring 12 is fixedly connected to the corresponding limiting ring 11 and is located on one side of the limiting ring 11. The two fixing rings 13 are respectively connected to the corresponding limiting rings. The ring 11 and the driving ring 12 are fixedly connected and are respectively arranged on both sides of the box body 1. The two rotating rings 14 are respectively clamped with the corresponding fixed rings 13 and covered on the outside of the corresponding fixed rings 13. The driving assembly is arranged below the driving ring 12. The rotating barrel 10 is clamped inside the box body 1 through the two limiting rings 11, and the rotating ring 14 is clamped on the outside of the two fixed rings 13. The rotating ring 14 is connected to the pipeline for transporting coal blocks. The driving ring 12 is driven to rotate by the driving assembly, so that the rotating barrel 10 rotates accordingly.
[0022] Among them, the mounting plate 15 is fixedly connected to the box body 1 and is located below the drive ring 12. The motor 16 is fixedly connected to the mounting plate 15 and is located above the mounting plate 15. The drive wheel 18 is fixedly connected to the output end of the motor 16 and is located on one side of the motor 16. The track 17 is covered on the surface of the drive wheel 18 and the drive ring 12. The motor 16 drives the drive wheel 18 to rotate. Under the connection of the track 17, the drive ring 12 rotates accordingly, driving the rotating barrel 10 to rotate.
[0023] Secondly, the two baffles 3 are fixedly connected to the box body 1 and are tiltedly arranged below the rotating barrel 10. The leakage pipe 4 is fixedly connected to the box body 1 and is located below the box body 1. The impurities in the coal blocks fall to the bottom plate of the box body 1 through the rotating barrel 10. Under the guiding effect of the two baffles 3, the impurities are discharged through the leakage pipe 4.
[0024] Then, one end of several of the telescopic rods 6 is fixedly connected to the box body 1, and the other end of several of the telescopic rods 6 is fixedly connected to the brush 5 and is located above the rotating barrel 10. Several of the springs 7 are covered on the surface of the corresponding telescopic rods 6. The several springs 7 push the brush 5 and press the brush 5 on the outside of the rotating barrel 10. When the rotating barrel 10 rotates, the brush 5 cleans the impurities on the surface of the rotating barrel 10.
[0025] In addition, the connecting pipe 8 is fixedly connected to the box body 1 and is located on one side of the brush 5. Several nozzles 9 are fixedly connected to the connecting pipe 8 and are evenly arranged on one side of the connecting pipe 8. The connecting pipe 8 is connected to the water pump, and the heavy liquid is sprayed out through several nozzles 9.
[0026] When using the present invention, the rotating barrel 10 is clamped inside the box body 1 by the two limiting rings 11, and the rotating ring 14 is clamped on the outside of the two fixed rings 13. The rotating ring 14 is connected to the pipeline for transporting coal blocks. The motor 16 drives the driving wheel 18 to rotate. Under the connection of the crawler 17, the driving ring 12 rotates accordingly, driving the rotating barrel 10 to rotate. When the rotating barrel 10 rotates, the brush 5 cleans the impurities on the surface of the rotating barrel 10, and the heavy liquid is sprayed out through the plurality of nozzles 9. The rotating barrel 10 rotates. In the heavy medium coal separation process, the clean coal with a lower density than the medium will float up, while the gangue or medium coal with a higher density than the medium will sink, thereby realizing the separation of coal blocks according to density from the rotating ring 14 on one side, and the impurities are discharged through the leakage pipe 4 under the diversion effect of the two baffles 3.
[0027] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.
Claims
1. A heavy medium coal preparation and rewashing device, comprising a box body and four support columns, wherein the four support columns are fixedly connected to the box body and are located at the four bottom corners of the box body, characterized in that: The cam is connected to the housing, and the cam is connected to the housing at the bottom. The cam is connected to the housing at the bottom. The cam is connected to the housing at the bottom. The cam is connected to the housing at the bottom. The cam is connected to the housing at the bottom. The cam is connected to the housing at the bottom.
2. The heavy medium coal preparation and rewashing device according to claim 1, characterized in that: The drive assembly includes a mounting plate, a motor, a track and a drive wheel. The mounting plate is fixedly connected to the box and is located below the drive ring. The motor is fixedly connected to the mounting plate and is located above the mounting plate. The drive wheel is fixedly connected to the output end of the motor and is located on one side of the motor. The track is covered on the surface of the drive wheel and the drive ring.
3. The heavy medium coal cleaning and rewashing device according to claim 2, characterized in that: The heavy medium coal preparation and rewashing device also includes two baffles and a leakage pipe. The two baffles are fixedly connected to the box body and are tiltedly arranged below the rotating barrel. The leakage pipe is fixedly connected to the box body and is located below the box body.
4. The heavy medium coal preparation and rewashing device according to claim 3, characterized in that: The heavy medium coal preparation and rewashing device also includes a brush, several telescopic rods and several springs. One end of several of the telescopic rods is fixedly connected to the box body, and the other end of several of the telescopic rods is fixedly connected to the brush and is located above the rotating barrel. Several of the springs are covered on the surface of the corresponding telescopic rods.
5. The heavy medium coal preparation and rewashing device according to claim 4, characterized in that: The heavy medium coal preparation and rewashing device also includes a connecting pipe and several nozzles. The connecting pipe is fixedly connected to the box and is located on one side of the brush. The several nozzles are fixedly connected to the connecting pipe and are evenly arranged on one side of the connecting pipe.