Novel tubular coal washing water filtering and returning device

Abstract

The utility model relates to the technical field of coal mines, and discloses a novel tubular coal washing water filtering and returning device which comprises a base and a water inlet pipe, a supporting rod is fixedly installed in the center of the base, the top of the supporting rod is rotationally connected with a rotating disc, four cavities are formed in the rotating disc, a filter screen is arranged in a water outlet hole, and a water outlet hole is formed in the water outlet hole. Four sets of sliding grooves are formed in the bottom side of the rotating disc in an array mode, an annular groove is formed in the bottom side of the rotating disc, a blocking plate is fixedly installed at the top of the supporting rod, an intermittent transmission assembly is arranged at the top of the base, and an impurity scraping assembly is arranged in a cavity of the rotating disc. A second servo motor can drive a threaded rod to rotate, then a telescopic plate is driven to slide through a cross-shaped sliding block, meanwhile, the outer side of a side plate always abuts against and is tightly attached to the inner wall of the cavity through the elastic force of a compression spring, then the side plate can extend out along with the shape of the cavity, and therefore impurities in the cavity can be completely scraped away; and the influence on the filtering effect caused by accumulation of moisture-containing impurities is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mines, in particular to a novel tubular coal washing water filtering and returning device. Background Art

[0002] When processing coal, it needs to be washed, and the amount of water used in coal washing is very large. In order to save resources, the coal washing water will be recycled and reused. After the coal is washed, small particles and other impurities attached to its surface will be mixed in the coal washing water, so the coal washing water needs to be filtered to avoid blockage in the return water device, which may cause it to fail to operate normally.

[0003] As disclosed in the Chinese patent with publication number CN219836211U, a pipeline-type return water filter device for coal washing circulating water belongs to the field of coal washing technology. The filter device includes a station switching column, an intermittent material frame and a guide rod. The intermittent material frame is arranged below the outlet of the return water pipe and is used to filter solid impurities in the return water discharged from the return water pipe. The intermittent material frame is movably connected to the station switching column. The station switching column uses the weight change of the solid impurities inside the intermittent material frame to control the intermittent material frame to rotate unidirectionally on the station switching column. The guide rod is installed on the external fixed end surface to assist the intermittent material frame in resetting its structural posture after rotating downward. This utility model drives the intermittent material frame to rotate up and down on the station switching column by intercepting the weight of the coal coke powder by the intermittent material frame, which not only ensures the continuity of filtration, but also avoids manual monitoring and cleaning of the filter structure, reduces labor input and labor intensity, and improves the practicality of the filter device for coal washing circulating water.

[0004] In the process of implementing this application, the inventor found that there are at least the following problems in this technology: Although the above technical solution can ensure the continuity of filtration and improve practicality, in actual use, since it mainly relies on the weight of impurities in the material frame and the opening of the leakage plate to complete automatic unloading, the impurities just filtered out are rich in water and will adhere to the leakage plate. It is difficult to remove them cleanly without the help of external force, which will affect the subsequent filtration effect. Therefore, further improvement can be made. Utility Model Content

[0005] The water filter screen is located at the bottom of the water filter screen, and the filter screen is located at the bottom of the water filter screen. The filter screen is located at the bottom of the water filter screen and is located at the water outlet. The filter screen is located at the bottom of the water filter screen and is located at the water outlet. The filter screen is located at the bottom of the water filter screen and is located at the water outlet. The water ...

[0006] As an optimization, the blocking plate is in the shape of a three-quarter ring, and the notch of the blocking plate just exposes a complete chamber. A collecting bin is provided at the top of the base and directly below the notch of the blocking plate. The blocking plate is blocked in the annular groove to seal the bottom of the chamber, and a chamber is always exposed, and impurities falling from the notch will be collected by the collecting bin.

[0007] As an optimization, the intermittent transmission assembly includes a bracket fixedly mounted on the outside of the support rod, a servo motor 1 is fixedly mounted on the bottom of the bracket, and the output shaft of the servo motor 1 passes through the bracket, a rotating plate is fixedly mounted on one end of the output shaft of the servo motor 1, and the end of the rotating plate is rotatably connected to a rotating column.

[0008] As an optimization, the rotating column rotates with the output shaft of servo motor 1 as the fulcrum, and its moving path is located in the slide groove. By starting servo motor 1 to drive the turn plate to rotate, the rotating column will rotate into the slide groove, and then squeeze the inner wall of the slide groove to drive the turntable to rotate a quarter of a circle, thereby intermittently replacing the chamber, and the equipment can operate normally even if one hole is blocked.

[0009] As an optimization, the impurity scraping assembly includes a servo motor 2 fixedly mounted on the outside of the turntable and a sliding rod fixedly mounted in the chamber, a threaded rod fixedly mounted on one end of the output shaft of the servo motor 2, and the other end of the threaded rod is rotatably connected to the inner wall of the chamber, a cross slider is provided on the outer threaded sleeve of the threaded rod, and both sides of the cross slider are penetrated by the sliding rod, and a telescopic plate is fixedly mounted on the bottom side of the cross slider.

[0010] As an optimization, two groups of sliding rods are symmetrically arranged on both sides of the threaded rod, and the sliding rods pass through both sides of the cross slider respectively. The sliding rods play a limiting and guiding role on the cross slider, so that when the threaded rod rotates, it will drive the cross slider to slide along the outside of the sliding rod, and then drive the telescopic plate to scrape off impurities attached to the chamber.

[0011] As an optimization, the telescopic plate includes a hollow plate fixedly mounted on the bottom side of the cross slider, and side plates are slidably inserted on both sides of the interior of the hollow plate. A hollow groove is opened inside the side plate, and a compression spring in a compressed state is fixedly mounted between the bottom wall of the hollow groove and the bottom wall of the hollow plate. Guide rods are fixedly mounted on both sides of the interior of the hollow plate, and the guide rods are inserted into the interior of the side plates. The compression springs are sleeved on the outer sides of the side plates. The compression springs themselves have their own rebound force, which makes the outer sides of the side plates always tightly against the inner wall of the chamber. As the cross slider moves, the side plates on both sides will gradually be exposed, thereby being able to adapt to the shape of the chamber and improving the effect of scraping away impurities.

[0012] The beneficial effects of the utility model are:

[0013] 1. This new tubular coal washing water filtering and returning device starts the servo motor to drive the rotating plate to rotate for a while, and then the rotating column rotates into the chute, so it will drive the turntable to rotate a quarter of a circle by squeezing the inner wall of the chute, and then the turntable can do intermittent motion, so that the chamber inside the turntable changes intermittently to filter the coal washing water, avoiding blockage caused by continuous use of one chamber, and multiple chambers work in exchange so that even if one is blocked, the others can still be used normally.

[0014] 2. This new tubular coal washing water filtration and return device drives the threaded rod to rotate through the servo motor 2, and then drives the telescopic plate to slide through the cross slider. At the same time, the elastic force of the compression spring itself will make the outer side of the side plate always abut against the inner wall of the chamber, and then be able to extend along the shape of the chamber, so that all impurities in the chamber will be scraped away to avoid the accumulation of impurities containing water affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the intermittent transmission structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the impurity scraping structure of the utility model;

[0018] Figure 4 It is a top view cutaway diagram of the telescopic plate structure of the present invention.

[0019] In the figure: 1. Base; 2. Water inlet pipe; 3. Turntable; 4. Filter; 5. Return pipe; 6. Chute; 7. Support rod; 8. Blocking plate; 9. Intermittent transmission assembly; 10. Impurity scraper assembly; 11. Bracket; 12. Servo motor 1; 13. Turntable; 14. Turntable column; 15. Servo motor 2; 16. Sliding rod; 17. Threaded rod; 18. Cross slider; 19. Telescopic plate; 20. Hollow plate; 21. Side plate; 22. Empty slot; 23. Compression spring; 24. Guide rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-2 The new tubular coal washing water filtering and returning device comprises a base 1 and a water inlet pipe 2. A support rod is fixedly installed at the center of the base 1. A turntable 3 is rotatably connected to the top of the support rod. Four chambers are provided inside the turntable 3, and the bottom of the water inlet pipe 2 is located directly above one of the chambers. The turntable 3 is located on the bottom wall of the chamber and has a water outlet hole. A filter screen 4 is provided inside the water outlet hole. A return pipe 5 is provided at the bottom of the turntable 3 and at the water outlet hole. Four groups of chutes 6 are arranged in an array on the bottom side of the turntable 3. A support is fixedly installed on the top side of the base 1. Rod 7, an annular groove is provided on the bottom side of the turntable 3, and the annular groove passes through each chamber. A blocking plate 8 is fixedly installed on the top of the support rod 7, and the blocking plate 8 is slidably connected in the annular groove. The blocking plate 8 is three-quarters circular, and the gap of the blocking plate 8 just exposes a complete chamber. A collecting bin is provided on the top of the base 1 and directly below the gap of the blocking plate 8. The blocking plate 8 is blocked in the annular groove, which will seal the bottom of the chamber and always keep one chamber exposed. Impurities falling from the gap will be collected by the collecting bin.

[0022] See also Figure 2An intermittent transmission component 9 is provided on the top of the base 1. The intermittent transmission component 9 includes a bracket 11 fixedly mounted on the outside of the support rod. A servo motor 12 is fixedly mounted on the bottom of the bracket 11, and the output shaft of the servo motor 12 passes through the bracket 11. A rotating plate 13 is fixedly mounted on one end of the output shaft of the servo motor 12. The end of the rotating plate 13 is rotatably connected to a rotating column 14. The rotating column 14 rotates with the output shaft of the servo motor 12 as a fulcrum, and its moving path is located in the slide 6. By starting the servo motor 12 to drive the rotating plate 13 to rotate, the rotating column 14 will rotate into the slide 6, and then squeeze the inner wall of the slide 6 to drive the turntable 3 to rotate a quarter of a circle, thereby intermittently replacing the chamber. Even if one hole is blocked, the equipment can operate normally.

[0023] See also Figure 3 , an impurity scraping assembly 10 is provided in the chamber of the turntable 3, and the impurity scraping assembly 10 includes a servo motor 2 15 fixedly mounted on the outside of the turntable 3 and a slide rod 16 fixedly mounted in the chamber, one end of the output shaft of the servo motor 2 15 is fixedly mounted with a threaded rod 17, and the other end of the threaded rod 17 is rotatably connected to the inner wall of the chamber, and two groups of slide rods 16 are symmetrically arranged on both sides of the threaded rod 17, and the outer thread sleeve of the threaded rod 17 is provided with a cross slider 18, and the slide rod 16 passes through both sides of the cross slider 18 respectively, and a telescopic plate 19 is fixedly mounted on the bottom side of the cross slider 18, which plays a limiting and guiding role for the cross slider 18 through the slide rod 16, so that when the threaded rod 17 rotates, it will drive the cross slider 18 to slide along the outer side of the slide rod 16, thereby driving the telescopic plate 19 to scrape off the impurities attached to the chamber;

[0024] See also Figure 4 The telescopic plate 19 includes a hollow plate 20 fixedly mounted on the bottom side of the cross slider 18, and side plates 21 are slidably inserted on both sides of the interior of the hollow plate 20. A hollow groove 22 is opened inside the side plate 21, and a compression spring 23 in a compressed state is fixedly installed between the bottom wall of the hollow groove 22 and the bottom wall of the hollow plate 20. Guide rods 24 are fixedly mounted on both sides of the interior of the hollow plate 20, and the guide rods 24 are inserted into the interior of the side plates 21, and the compression springs 23 are sleeved on the outer side of the side plates 21. The compression springs 23 themselves will make the outer side of the side plates 21 always close to the inner wall of the chamber through the rebound force of the compression springs 23 themselves, and then as the cross slider 18 moves, the side plates 21 on both sides will gradually be exposed, so that they can adapt to the shape of the chamber and improve the effect of scraping away impurities.

[0025] When using, refer to Figure 1-4First, by starting the servo motor 12, the rotating plate 13 is driven to rotate, which in turn drives the rotating column 14 to rotate into the chute 6, so that the inner wall of the chute 6 is squeezed to drive the turntable 3 to rotate a quarter of a turn, thereby enabling the turntable 3 to rotate intermittently, and only rotate a quarter of a turn each time, so that after the coal washing water is discharged into the chamber through the water inlet pipe 2, it will automatically rotate to the next chamber, and the filtered coal washing water will be discharged through the return pipe 5;

[0026] At the same time, the chamber after filtration will rotate to the opening of the blocking plate 8. By starting the servo motor 2 15, the threaded rod 17 will be driven to rotate, and then the cross slider 18 will be driven to slide along the outside of the slide rod 16, so the telescopic plate 19 will be driven to move toward the side of the servo motor 2 15 as a whole. The elastic force of the compression spring 23 itself will make the side plates 21 on both sides always close to the inner wall of the chamber, and then will adapt to the shape of the chamber and gradually expose themselves outward, so all the impurities in the chamber will be scraped out to the opening of the blocking plate 8. At this time, the impurities will fall down from the annular groove into the collection bin.

[0027] To sum up, the new tubular coal washing water filtering and returning device drives the rotating plate 13 to rotate by starting the servo motor 12, and then causes the rotating column 14 to rotate into the chute 6, so it drives the turntable 3 to rotate a quarter of a circle by squeezing the inner wall of the chute 6, and then enables the turntable 3 to perform intermittent motion, so that the chamber inside the turntable 3 intermittently changes to filter the coal washing water, avoiding blockage caused by continuous use of one chamber, and multiple chambers exchange work so that even if one is blocked, the others can still be used normally.

[0028] The servo motor 2 15 drives the threaded rod 17 to rotate, and then drives the telescopic plate 19 to slide through the cross slider 18. At the same time, the elastic force of the compression spring 23 itself will make the outer side of the side plate 21 always abut against the inner wall of the chamber, and then be able to extend along the shape of the chamber, so that all impurities in the chamber will be scraped away to avoid the accumulation of impurities containing water that affect the filtering effect.

[0029] In the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can all be customized according to the description and the drawings.

[0031] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A new tubular coal washing water filtering and returning device, comprising a base (1) and a water inlet pipe (2), characterized in that: A support rod is fixedly installed at the center of the base (1), and a turntable (3) is rotatably connected to the top of the support rod. Four chambers are provided inside the turntable (3), and the bottom of the water inlet pipe (2) is located directly above one of the chambers. A water outlet is provided through the bottom wall of the turntable (3) located in the chamber, and a filter (4) is provided inside the water outlet. A return pipe (5) is provided at the bottom of the turntable (3) and located at the water outlet. Four groups of slide grooves (6) are provided in an array on the bottom side of the turntable (3). A support rod (7) is fixedly installed on the top side of the base (1). An annular groove is provided on the bottom side of the turntable (3), and the annular groove passes through each chamber. A blocking plate (8) is fixedly installed on the top of the support rod (7), and the blocking plate (8) is slidably connected in the annular groove. An intermittent transmission component (9) is provided on the top of the base (1), and an impurity scraping component (10) is provided in the chamber of the turntable (3).

2. The novel tubular coal washing water filtering and returning device according to claim 1 is characterized in that: The blocking plate (8) is in the shape of a three-quarter ring, and a complete chamber is just exposed at the notch of the blocking plate (8). A collection bin is provided at the top of the base (1) and directly below the notch of the blocking plate (8).

3. The novel tubular coal washing water filtering and returning device according to claim 1 is characterized in that: The intermittent transmission assembly (9) includes a bracket (11) fixedly mounted on the outside of the support rod, a servo motor (12) fixedly mounted on the bottom of the bracket (11), and an output shaft of the servo motor (12) passes through the bracket (11), a rotating plate (13) fixedly mounted on one end of the output shaft of the servo motor (12), and an end of the rotating plate (13) is rotatably connected to a rotating column (14).

4. The novel tubular coal washing water filtering and returning device according to claim 3 is characterized in that: The rotating column (14) rotates with the output shaft of the servo motor (12) as a fulcrum, and its moving path is located in the sliding groove (6).

5. The novel tubular coal washing water filtering and returning device according to claim 1 is characterized in that: The impurity scraping assembly (10) includes a servo motor 2 (15) fixedly mounted on the outside of the turntable (3) and a slide rod (16) fixedly mounted in the chamber, a threaded rod (17) fixedly mounted on one end of the output shaft of the servo motor 2 (15), and the other end of the threaded rod (17) is rotatably connected to the inner wall of the chamber, a cross slide (18) is provided on the outer threaded sleeve of the threaded rod (17), and both sides of the cross slide (18) are penetrated by the slide rod (16), and a telescopic plate (19) is fixedly mounted on the bottom side of the cross slide (18).

6. The novel tubular coal washing water filtering and returning device according to claim 5 is characterized in that: Two groups of the sliding rods (16) are symmetrically arranged on both sides of the threaded rod (17), and the sliding rods (16) respectively pass through both sides of the cross slider (18).

7. The novel tubular coal washing water filtering and returning device according to claim 5 is characterized in that: The telescopic plate (19) includes a hollow plate (20) fixedly mounted on the bottom side of the cross slider (18), side plates (21) are slidably inserted into both sides of the interior of the hollow plate (20), a slot (22) is provided inside the side plate (21), a compression spring (23) in a compressed state is fixedly mounted between the bottom wall of the slot (22) and the bottom wall of the hollow plate (20), guide rods (24) are fixedly mounted on both sides of the interior of the hollow plate (20), and the guide rods (24) are inserted into the interior of the side plates (21), and the compression spring (23) is sleeved on the outside of the side plates (21).

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