Automatic drainage system for underground coal mine

Abstract

The utility model discloses an underground automatic drainage system for a coal mine, which comprises a filter box and a waste scraping mechanism, and the front side and the rear side of the upper surface of the filter box are respectively provided with a sliding chute; the waste scraping-out mechanism comprises lead screws, sliding seats, sliding rods, limiting blocks, scraping plates and first springs, the lead screws are rotationally connected to the front side and the rear side of the interior of the filtering box, the outer threaded faces of the two lead screws are in threaded connection with the interior of one sliding seat, and the sliding rods are slidably connected to the front side and the rear side of the sliding seat; the lower surfaces of the two sliding rods are fixedly connected with the upper surface of a scraper, the upper surfaces of the sliding rods are fixedly connected with limiting blocks, and the outer side faces of the sliding rods are movably sleeved with first springs. According to the automatic drainage system for the underground coal mine, when coal cinder is filtered, large coal cinder can directly fall into a waste box, and the waste scraping mechanism can scrape small coal cinder; the effect of cleaning the filter plate is achieved, and the filtering efficiency is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater discharge technology, specifically an automatic drainage system for underground coal mines. Background Technology

[0002] During the construction and production of coal mines, due to the complex geological conditions in the mines, seepage and water accumulation are very likely to occur. As an essential component of mine mining, the safety and reliability of the drainage system directly affect the safety and production efficiency of mine mining.

[0003] Existing automatic drainage systems in coal mines typically pass wastewater through a filter plate to remove coal slag, and then use a water pump to pump the wastewater away.

[0004] Existing automatic drainage systems in coal mines have the following problems: when filtering coal slag, large pieces of slag can fall directly into the waste bin, but small-hole slag will remain on the filter plate, affecting the filtration efficiency, and the filter plate is troublesome to clean. Therefore, we propose an automatic drainage system for coal mines. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an automatic drainage system for underground coal mines. When filtering coal slag, large pieces of coal slag can fall directly into the waste bin, and the waste scraping mechanism will scrape off the small pieces of coal slag, which will clean the filter plate and will not affect the filtration efficiency. This can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic drainage system for underground coal mines, including a filter box, with sliding grooves on both the front and rear sides of the upper surface of the filter box, and also including a waste scraping mechanism;

[0007] Waste scraping mechanism: It includes a lead screw, a sliding seat, a sliding rod, a limiting block, a scraper, and a spring. Lead screws are rotatably connected to both the front and rear sides of the filter box. The external threads of the two lead screws are connected to the internal threads of a sliding seat. Sliding rods are slidably connected to both the front and rear sides of the sliding seat. The lower surfaces of the two sliding rods are fixedly connected to the upper surface of a scraper. A limiting block is fixedly connected to the upper surface of each sliding rod. A spring is movably sleeved on the outer side of each sliding rod, located between the lower surface of the sliding seat and the upper surface of the scraper. The upper end of each sliding rod is slidably connected to the interior of a groove on the same side. When filtering coal slag, large pieces of coal slag can fall directly into the waste box. The waste scraping mechanism will scrape off the smaller pieces of coal slag, cleaning the filter plate without affecting the filtration efficiency.

[0008] Furthermore, the waste scraping mechanism also includes bevel gear one, a rotating shaft, and bevel gear two. Bevel gear one is fixedly connected to the right side of the lead screw. A support platform is provided at the upper end of the right side of the filter box. The left and right sides of the upper surface of the support platform are rotatably connected to the rotating shaft through support blocks. Bevel gear two is fixedly connected to the end of the rotating shaft away from the center of the filter box. Bevel gear one and bevel gear two located on the same side are meshed together, which facilitates the normal operation of the waste scraping mechanism.

[0009] Furthermore, it also includes a microcontroller, which is fixedly connected to the front side of the filter box. The input terminal of the microcontroller is electrically connected to an external power supply to facilitate the normal operation of the drainage system.

[0010] Furthermore, a dual-axis motor is fixedly connected to the upper surface of the support platform. The output shaft of the dual-axis motor is fixedly connected to the end of the rotating shaft on the same side that is closer to the center of the filter box. The input end of the dual-axis motor is electrically connected to the output end of the microcontroller to provide driving force.

[0011] Furthermore, it also includes a filter plate. Sliding columns are slidably connected to the openings on both the front and rear sides of the filter box. A stop block is provided at the end of the sliding column away from the center of the filter box, and an insertion block is provided at the end of the sliding column near the center of the filter box. A second spring is sleeved on the outer surface of the sliding column. The second spring is located between the inner wall of the filter box on the same side and the insertion block. Slots are opened on both the front and rear sides of the filter plate, and the insertion blocks are inserted into the slots on the same side to facilitate the insertion and fixing of the filter plate.

[0012] Furthermore, a water pump is fixedly connected to the drain outlet on the left side of the filter box. The input end of the water pump is electrically connected to the output end of the microcontroller, which facilitates the pumping out and discharging of the filtered wastewater.

[0013] Furthermore, a waste bin is slidably connected to the lower right side of the filter box, and a handle is provided on the front side of the waste bin for easy collection of coal slag waste.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic drainage system for underground coal mines has the following advantages:

[0015] When filtering coal slag, large pieces of coal slag can fall directly into the waste bin. The rotation of the shaft drives the second bevel gear to rotate, which in turn drives the lead screw to rotate. This causes the sliding seat to move the scraper left and right through the sliding rod. Under the action of the first spring, the scraper always stays in contact with the upper surface of the filter plate, scraping small pieces of coal slag into the waste bin, thus cleaning the filter plate without affecting the filtration efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is an enlarged structural diagram of point A of this utility model.

[0019] In the diagram: 1. Filter box, 2. Microcontroller, 3. Waste scraping mechanism, 31. Lead screw, 32. Sliding seat, 33. Slide rod, 34. Limit block, 35. Scraper, 36. Spring 1, 37. Bevel gear 1, 38. Rotating shaft, 39. Bevel gear 2, 4. Dual-shaft motor, 5. Filter plate, 6. Water pump, 7. Slide column, 8. Stop block, 9. Insert block, 10. Spring 2, 11. Slot, 12. Slide groove, 13. Waste box, 14. Handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This embodiment provides a technical solution: an automatic drainage system for underground coal mines, including a filter box 1, with sliding grooves 12 on both the front and rear sides of the upper surface of the filter box 1, a waste scraping mechanism 3, a microcontroller 2, a microcontroller 2 fixedly connected to the front side of the filter box 1, and an input terminal of the microcontroller 2 electrically connected to an external power source, a filter plate 5, and sliding columns 7 slidably connected to the openings on both the front and rear sides of the filter box 1. A stop block 8 is provided at the end of the sliding column 7 away from the center of the filter box 1, and an insertion block 9 is provided at the end of the sliding column 7 near the center of the filter box 1. A second spring 10 is fitted onto the outer surface of each sliding column 7, and the second spring 10 is located between the inner wall of the filter box 1 on the same side and the insertion block 9. Slots 11 are provided on both the front and rear sides of the filter plate 5, and the insertion blocks 9 are inserted into the slots 11 on the same side. A water pump 6 is fixedly connected to the drain outlet on the left side of the filter box 1, and the input terminal of the water pump 6 is electrically connected to the output terminal of the microcontroller 2. A sliding connection is provided at the lower right side of the filter box 1. There is a waste bin 13, and a handle 14 is provided on the front side of the waste bin 13. The staff pours the wastewater to be treated into the filter box 1 from the inlet. The wastewater will flow through the filter plate 5 to the bottom of the filter box 1. Then the staff controls the microcontroller 2 to turn on the water pump 6. The water pump 6 will pump the filtered wastewater out of the filter box 1. Large pieces of coal slag in the wastewater will fall directly into the waste bin 13 through the waste discharge outlet along the inclined filter plate 5. Small pieces of coal slag in the wastewater will remain on the filter plate 5. After the drainage system has been used for a period of time, if the filter plate 5 needs to be replaced, the staff can pull the two side blocks 8. The block 8 drives the insert 9 to move away from the center of the filter box 1 through the sliding column 7, and release the insertion relationship between the insert 9 and the slot 11. At this time, the second spring 10 is compressed, and then the filter plate 5 can be taken out. After aligning the slot 11 of the new filter plate 5 with the insert 9, the insert 9 will be inserted into the slot 11 under the action of the spring 10, and the filter plate 5 will be inserted and fixed.

[0022] Waste scraping mechanism 3: It includes a lead screw 31, a sliding seat 32, a slide bar 33, a limiting block 34, a scraper 35, and a spring 36. Lead screws 31 are rotatably connected to both the front and rear sides of the filter box 1. The external threads of the two lead screws 31 are connected to the internal threads of a sliding seat 32. Slide bars 33 are slidably connected to both the front and rear sides of the sliding seat 32. The lower surfaces of the two slide bars 33 are fixedly connected to the upper surface of a scraper 35. A spring 36 is fixedly connected to the upper surface of the slide bars 33. The limiting block 34 and the outer surface of the slide rod 33 are movably fitted with spring 36. Spring 36 is located between the lower surface of the sliding seat 32 and the upper surface of the scraper 35. The upper end of the slide rod 33 is slidably connected to the inside of the slide groove 12 on the same side. The waste scraping mechanism 3 also includes a bevel gear 37, a rotating shaft 38 and a bevel gear 39. The right side of the lead screw 31 is fixedly connected with bevel gear 37. The upper part of the right side of the filter box 1 is provided with a support platform. The upper surface of the support platform is provided with spring 36 on both the left and right sides. A rotating shaft 38 is rotatably connected to the support block. A bevel gear 39 is fixedly connected to the end of the rotating shaft 38 away from the center of the filter box 1. A bevel gear 37 on the same side meshes with the bevel gear 39. A dual-axis motor 4 is fixedly connected to the upper surface of the support platform. The output shaft of the dual-axis motor 4 is fixedly connected to the end of the rotating shaft 38 on the same side near the center of the filter box 1. The input end of the dual-axis motor 4 is electrically connected to the output end of the microcontroller 2. When the operator turns on the dual-axis motor 4, the output shaft of the dual-axis motor 4 drives the rotating shaft 38 to rotate. The rotation of the rotating shaft 38 drives the bevel gear 39 to rotate. The rotation of the bevel gear 39 drives the lead screw 31 to rotate through the meshing bevel gear 37. The rotation of the lead screw 31 causes the sliding seat 32 to move left and right. The sliding seat 32 drives the scraper 35 to move left and right through the sliding rod 33. Under the action of the spring 36, the scraper 35 always adheres to the upper surface of the filter plate 5, scraping small pieces of coal slag into the waste bin 13.

[0023] The working principle of the automatic drainage system for underground coal mines provided by this utility model is as follows: Workers pour the wastewater to be treated into the filter box 1 through the inlet. The wastewater flows through the filter plate 5 to the lower end of the filter box 1. Then, the worker controls the microcontroller 2 to turn on the water pump 6. The water pump 6 pumps the filtered wastewater out of the filter box 1. Large pieces of coal slag in the wastewater fall directly along the inclined filter plate 5 through the waste discharge outlet into the waste bin 13. Small pieces of coal slag in the wastewater remain on the filter plate 5. At this time, the worker turns on the dual-shaft motor 4. The output shaft of the dual-shaft motor 4 drives the rotating shaft 38 to rotate. The rotation of the rotating shaft 38 drives the second bevel gear 39 to rotate. The rotation of the second bevel gear 39 drives the lead screw 31 to rotate through the meshing bevel gear 37. The rotation of rod 31 causes sliding seat 32 to move left and right. Sliding seat 32 drives scraper 35 to move left and right through sliding rod 33. Under the action of spring 36, scraper 35 always adheres to the upper surface of filter plate 5, scraping small pieces of coal slag into waste bin 13. After the drainage system has been used for a period of time, if filter plate 5 needs to be replaced, the operator can pull the stop blocks 8 on both sides. The stop blocks 8 drive the insert block 9 to move away from the center of filter box 1 through sliding column 7, releasing the insertion relationship between insert block 9 and slot 11. At this time, spring 10 is compressed, and then filter plate 5 can be taken out. After aligning the slot 11 of the new filter plate 5 with insert block 9, insert block 9 will be inserted into slot 11 under the action of spring 10, fixing filter plate 5 in place.

[0024] It is worth noting that the single-chip microcomputer 2 disclosed in the above embodiments can be an EFR32MG21, the dual-axis motor 4 can be an 86BYGH118 dual-axis motor, and the water pump 6 can be a WQ-T medium-sewage series submersible pump. The single-chip microcomputer 2 controls the operation of the dual-axis motor 4 and the water pump 6 using methods commonly used in the prior art.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic drainage system for underground coal mines, comprising a filter box (1), wherein the upper surface of the filter box (1) is provided with sliding grooves (12) on both the front and rear sides, characterized in that: It also includes a waste scraping mechanism (3); Waste scraping mechanism (3): It includes a lead screw (31), a sliding seat (32), a slide rod (33), a limiting block (34), a scraper (35), and a spring (36). The front and rear sides of the filter box (1) are rotatably connected to the lead screw (31). The external thread surfaces of the two lead screws (31) are connected to the internal thread of a sliding seat (32). The front and rear sides of the sliding seat (32) are slidably connected to the slide rod (33). The lower surfaces of the two slide rods (33) are fixedly connected to the upper surface of a scraper (35). The upper surface of the slide rod (33) is fixedly connected to the limiting block (34). The outer side of the slide rod (33) is movably sleeved with a spring (36). The spring (36) is located between the lower surface of the sliding seat (32) and the upper surface of the scraper (35). The upper end of the slide rod (33) is slidably connected to the inside of the slide groove (12) on the same side.

2. The automatic drainage system for underground coal mine of claim 1, wherein: The waste scraping mechanism (3) also includes a bevel gear one (37), a rotating shaft (38) and a bevel gear two (39). The right side of the lead screw (31) is fixedly connected to the bevel gear one (37). The upper side of the right side of the filter box (1) is provided with a support platform. The upper surface of the support platform is rotatably connected to the rotating shaft (38) on both sides through the support block. The end of the rotating shaft (38) away from the center of the filter box (1) is fixedly connected to the bevel gear two (39). The bevel gear one (37) and the bevel gear two (39) on the same side are meshed together.

3. The automatic drainage system for underground coal mines according to claim 2, characterized in that: It also includes a microcontroller (2), which is fixedly connected to the front side of the filter box (1), and the input terminal of the microcontroller (2) is electrically connected to an external power supply.

4. The automatic drainage system for underground coal mines according to claim 3, characterized in that: A dual-axis motor (4) is fixedly connected to the upper surface of the support platform. The output shaft of the dual-axis motor (4) is fixedly connected to the end of the rotating shaft (38) on the same side that is close to the center of the filter box (1). The input end of the dual-axis motor (4) is electrically connected to the output end of the microcontroller (2).

5. The automatic drainage system for underground coal mine of claim 1, wherein: It also includes a filter plate (5). Sliding columns (7) are slidably connected in the openings on the front and rear sides of the filter box (1). A stop block (8) is provided at the end of the sliding column (7) away from the center of the filter box (1). An insert block (9) is provided at the end of the sliding column (7) close to the center of the filter box (1). A second spring (10) is sleeved on the outer surface of the sliding column (7). The second spring (10) is located between the inner wall of the filter box (1) on the same side and the insert block (9). Slots (11) are opened on the front and rear sides of the filter plate (5). The insert block (9) is inserted into the slot (11) on the same side.

6. The automatic drainage system for underground coal mine of claim 3, wherein: A water pump (6) is fixedly connected to the drain outlet on the left side of the filter box (1), and the input end of the water pump (6) is electrically connected to the output end of the microcontroller (2).

7. The automatic drainage system for underground coal mine of claim 1, wherein: The filter box (1) is slidably connected to the lower right side of the filter box (1), and the front side of the waste box (13) is provided with a handle (14).

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