Coal slime water recycling device for coal washing

Abstract

This invention discloses a coal slurry water recycling device for coal washing, specifically relating to the field of water-saving technology. It includes a wastewater inlet device comprising a wastewater loading component for introducing the raw coal washing liquid and a clean water loading component for introducing the filtered raw coal washing liquid. Both the wastewater and clean water loading components are semi-circular deep-water tanks, with their side planes tightly fitted together and connected at the contact point. During operation, a filter device is inserted into the inner cavity of the wastewater inlet device to intercept lumps and powders during the coal washing process. The filter device features multi-stage cleaning to enhance the cleaning power of the coal washing wastewater. Furthermore, the filter device includes a multi-layer filter screen for filtering the coal slurry wastewater, which is easily removed from the inner cavity of the wastewater inlet device for cleaning, improving the filtration efficiency of the coal washing wastewater and eliminating hand contamination.

Description

Technical Field

[0001] This invention relates to the field of water-saving technology, and more specifically, to a coal slurry water recycling device for coal washing. Background Technology

[0002] Coal washing is an indispensable process in the deep processing of coal. Coal directly mined from the mine is called raw coal. During the mining process, raw coal is mixed with many impurities, and the quality of coal also varies. Coal with low ash content and coal with high ash content are mixed together. Coal washing is an industrial process that removes impurities from raw coal or separates high-quality coal from low-quality coal. The products produced after the coal washing process are generally classified into gangue, middlings, grade B refined coal, and grade A refined coal. The finished coal after the coal washing process is usually called refined coal. Through coal washing, coal transportation costs can be reduced and coal utilization can be improved. Refined coal is generally an energy source that can be used as fuel. Refined coal from bituminous coal is generally mainly used for coking. It undergoes desulfurization, impurity removal, and other industrial processes to meet the standards for coking.

[0003] Coal washing generates a large amount of coal slurry. To avoid wasting water resources and polluting the environment, the coal slurry is often filtered and recycled. However, the installation and disassembly of filter screens in current filtration devices are cumbersome, affecting the filtration effect of the coal slurry. Secondly, by utilizing the direction of gravity, only one filter canister is often set up, with wastewater entering at the top and filtered clean water exiting at the bottom. However, in practice, the boundary between wastewater and clean water is difficult to determine, and fluctuations in the liquid surface can easily lead to the mixing of clean water and wastewater, reducing the efficiency of cleaning and filtration.

[0004] To address these issues, we propose a coal slurry water recycling device for coal washing. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a coal slurry water recycling device for coal washing. By inserting a filter device into the inner cavity of the wastewater inlet device, lumps and powders in the coal washing process can be intercepted. Furthermore, the filter device is equipped with multi-stage cleaning to improve the cleaning power of the coal washing wastewater, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a coal slurry water recycling device for coal washing, comprising: a wastewater inlet device, including a wastewater loading component for inletting the raw liquid for coal washing and a clean water loading component for inleting the filtered raw liquid for coal washing, wherein the wastewater loading component and the clean water loading component are both semi-circular deep water tanks, and the side planes of the wastewater loading component and the clean water loading component are tightly fitted together, and are connected at the position where the wastewater loading component and the clean water loading component are fitted together;

[0007] A filtration device for filtering wastewater containing coal slurry is vertically inserted into the inner cavity of a wastewater inlet device. The filtration device includes a filter screen, a first filter cloth, a second filter cloth, and a third filter cloth for multi-layer filtration of the coal slurry wastewater. The filter screen and the first filter cloth, the filter screen and the second filter cloth, and the second filter cloth and the third filter cloth are respectively fixed by a vertical connecting rod, a suspension support plate, and a locking connecting plate. A handle for gripping is fixed on the surface of the suspension support plate.

[0008] A limiting device, which is used to support and restrict the position of the sewage inlet device.

[0009] In a preferred embodiment, the sewage loading component includes a sewage carrying tank body, and a square outlet with a square groove is provided at the bottom end of the sewage carrying tank body.

[0010] The clean water loading component includes a clean water carrying tank body. A set of square box grooves is located on the outer wall of the side plane of the clean water carrying tank body from the outside to the inside. The height of the groove is higher than the top of the clean water carrying tank body. The square box grooves correspond to the position of the square water outlet.

[0011] In a preferred embodiment, the locking connecting plate is arranged in an inverted "L" shape, with its two ends fixed to the surfaces of the second and third filter protective cloths, respectively. The number of locking connecting plates is multiple sets, and the multiple sets of locking connecting plates are linearly fixed to the surfaces of the second and third filter protective cloths. The number of vertical connecting rods is multiple, and the filter protective net is integrally connected to the first filter protective cloth through multiple vertical connecting rods.

[0012] The third filter protective cloth, the second filter protective cloth, and the first filter protective cloth have the same structure but different appearances.

[0013] In a preferred embodiment, the third filter protective cloth, the second filter protective cloth, and the first filter protective cloth each include a set of protective frames and a protective net glued to the inside of the protective frames. The protective frames of the first and third filter protective cloths are semi-circular and are adapted to the inner cavities of the sewage carrying tank body and the clean water carrying tank body, respectively. The protective frame of the second filter protective cloth is square and is adapted to the groove of the square box.

[0014] The filter protection net includes a set of protective frames and a tightly welded wire mesh to the protective frames, wherein the bottom end of the protective frame is flush with the bottom end of the wire mesh, and the top end of the protective frame is higher than the top end of the wire mesh.

[0015] In a preferred embodiment, the wastewater loading component has multiple circular outlets at its bottom end, and multiple water outlet pipes are provided at the locations of the multiple outlets, with the multiple water outlet pipes welded to the outer wall of the clean water carrying tank body.

[0016] In a preferred embodiment, the limiting device includes a supporting and limiting component for supporting and limiting the sewage loading component and the clean water loading component to maintain a tight fit between the sewage loading component and the clean water loading component, and a lifting component for raising and lowering the height of the sewage loading component.

[0017] The supporting and limiting component includes a semi-circular base and an arc-shaped base that support and limit. Two sets of limiting bases extend from the side plane of the semi-circular base. Two sets of telescopic threaded rods are fixed inside the two sets of limiting bases. Two sets of support rods are fixed on the surface of the rods of the two sets of telescopic threaded rods. The two sets of support rods are symmetrically arranged about the center plane of the sewage inlet device.

[0018] In a preferred embodiment, the telescopic threaded rod includes two sets of circular fitting discs, an internal threaded rod and an external threaded worm located between the two sets of circular fitting discs, the internal threaded rod and the external threaded worm are connected by threads, and the two sets of circular fitting discs are respectively fixed to the opposite end faces of the internal threaded rod and the external threaded worm.

[0019] In a preferred embodiment, the support rod includes an end collar sleeved on the surface of the built-in threaded rod body, a bent support rod integrally connected to the end collar, and a support disc located at the end of the bent support rod.

[0020] In a preferred embodiment, the lifting component includes a micro motor fixed to the bottom of the sewage loading component. A set of vertical rods is fixed at the output end of the micro motor. The diameter of the vertical rods is the same as that of the outer rod of the external threaded worm gear. Engaging components are fixed on the surface of the vertical rods. There are three sets of engagement components. The other two sets of engagement components are respectively sleeved on the surfaces of the two sets of external threaded worm gears. A rack gear meshes between the three sets of engagement components. The three sets of engagement components are driven to move synchronously through the rack gear.

[0021] In a preferred embodiment, the meshing assembly includes a ring gear and two sets of limiting rings fitted to both sides of the ring gear.

[0022] The technical effects and advantages of this invention are as follows:

[0023] 1. In this invention, a filter device is inserted into the inner cavity of the sewage inlet device to intercept lumps and powders during the coal washing process. The filter device is equipped with multi-stage cleaning to improve the cleaning power of the coal washing sewage. The filter device includes a filter protection net, a first filter protection cloth, a second filter protection cloth, and a third filter protection cloth for multi-layer filtration of coal slime sewage. The filter protection net and the first filter protection cloth, the filter protection net and the second filter protection cloth, and the second filter protection cloth and the third filter protection cloth are respectively connected by vertical connecting rods, suspension support plates, and locking connecting plates to form an integral set, which is convenient to remove and clean from the inner cavity of the sewage inlet device, improves the filtration efficiency of coal washing sewage, and does not cause hand contamination.

[0024] 2. In this invention, the filtration device is fixed in position by being suspended on the side wall of the sewage loading component. There is no need to set up a support device in the inner cavity of the sewage loading component and the clean water loading component, thus maintaining the smoothness of the inner cavity of the sewage loading component and the clean water loading component, reducing the cleaning difficulty of the sewage inlet device, and the sewage inlet device and the filtration device are detachable, so that the sewage inlet device and the filtration device can be cleaned separately, thereby improving the cleaning efficiency and cleaning power.

[0025] 3. In this invention, by loading coal slurry wastewater and filtered clean water separately, the mixing and backflow of clean water and wastewater are prevented, thus preventing the clean water from being re-polluted. At the same time, it is convenient for workers to observe the water flow rate from the inner cavity of the wastewater loading component to the inner cavity of the clean water loading component, and to determine whether the filtration device needs to be cleaned, thereby reducing the filtration speed of coal slurry water.

[0026] 4. In this invention, a limiting device for restricting the position of the sewage loading component and the clean water loading component is provided at the bottom of the sewage inlet device. The limiting device includes a supporting limiting component and a lifting component. The supporting limiting component is used to support and limit the sewage loading component and the clean water loading component to maintain a tight fit between the sewage loading component and the clean water loading component, so as to ensure the amount of water introduced from the inner cavity of the sewage loading component to the inner cavity of the clean water loading component and avoid waste of water resources.

[0027] 5. In this invention, the lifting component is used to raise and lower the height of the sewage loading component to drain the water on the filter device, so as to prevent the filter device from causing dirt on the ground during the handling process. Secondly, the lifting component can separate the sewage loading component and the clean water loading component to allow the water to settle, thereby achieving further self-purification of water resources. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the coal slurry water recycling device of the present invention.

[0029] Figure 2 For the present invention Figure 1 Enlarged view of the structure of part A.

[0030] Figure 3 This is a schematic diagram of the overall structure of the filtration device of the present invention.

[0031] Figure 4 This is a schematic diagram of the overall structure of the wastewater introduction device of the present invention.

[0032] Figure 5 For the present invention Figure 4 Enlarged view of the structure of part B.

[0033] Figure 6 This is an isometric view of the overall structure of the coal slurry water recycling device of the present invention.

[0034] Figure 7 For the present invention Figure 6 Enlarged view of the C-section structure.

[0035] Figure 8 This is a schematic diagram of the overall structure of the support and limiting component of the present invention.

[0036] Figure 9 This is a diagram showing the connection and fit of the limiting sleeve and telescopic threaded rod structure of the present invention.

[0037] Figure 10 This is a schematic diagram of the overall structure of the lifting component of the present invention.

[0038] The attached figures are labeled as follows: 1. Sewage loading component; 101. Sewage carrying tank body; 102. Square outlet; 2. Clean water loading component; 201. Clean water carrying tank body; 202. Circular outlet; 203. Square tank groove; 3. Support and limiting component; 310. Semi-circular base; 320. Arc-shaped base; 330. Limiting base; 340. Telescopic threaded rod; 341. Internal threaded rod; 342. Circular fitting plate; 343. External threaded worm gear; 350. Support rod; 3 51. End collar; 352. Bending support rod; 353. Support disc; 4. Lifting component; 410. Micro motor; 420. Meshing assembly; 421. Restricting ring; 422. Ring gear; 430. Strip gear; 5. Water outlet pipe; 6. Restricting sleeve; 7. Filter protection net; 8. First filter protection cloth; 9. Vertical connecting rod; 10. Suspension support plate; 11. Handle; 12. Second filter protection cloth; 13. Locking connecting plate; 14. Third filter protection cloth. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Refer to the instruction manual appendix Figure 1-10 An embodiment of the present invention provides a coal slurry water recycling device for coal washing, comprising: a wastewater inlet device, including a wastewater loading component 1 for inletting raw coal washing liquid and a clean water loading component 2 for inletting filtered raw coal washing liquid. Both the wastewater loading component 1 and the clean water loading component 2 are semi-circular deep water tanks, and the side planes of the wastewater loading component 1 and the clean water loading component 2 are tightly fitted together and connected at the position where the wastewater loading component 1 and the clean water loading component 2 are fitted together.

[0041] A filtration device is used to filter wastewater containing coal slurry. The filtration device is vertically inserted into the inner cavity of the wastewater inlet device. The filtration device includes a filter protection net 7, a first filter protection cloth 8, a second filter protection cloth 12, and a third filter protection cloth 14 for multi-layer filtration of coal slurry wastewater. The filter protection net 7 and the first filter protection cloth 8, the filter protection net 7 and the second filter protection cloth 12, and the second filter protection cloth 12 and the third filter protection cloth 14 are respectively fixed by a vertical connecting rod 9, a suspension support plate 10, and a locking connecting plate 13. A handle 11 for holding is fixed on the surface of the suspension support plate 10.

[0042] A limiting device, which is used to support and restrict the position of the sewage inlet device.

[0043] In the above example, this device separates the coal slurry wastewater and the filtered clean water from the coal slurry wastewater into separate containers, preventing the mixing and backflow of clean water and causing re-contamination of the clean water. At the same time, the water flow rate from the inner cavity of the wastewater loading component 1 to the inner cavity of the clean water loading component 2 can be directly observed to determine whether the filter device needs to be cleaned, thereby reducing the filtration speed of the coal slurry water.

[0044] Secondly, this device has a detachable filter installed inside the sewage inlet device. The filter can be directly supported by the suspension support plate 10, which causes the positions of the integrated filter protection net 7, vertical connecting rod 9, second filter protection cloth 12 and third filter protection cloth 14 to be changed, which is convenient for timely cleaning, improves the filtration speed of coal slurry water and cleans the sewage.

[0045] In order to smoothly guide the water flow from the inner cavity of the sewage loading component 1 to the inner cavity of the clean water loading component 2 and ensure the efficiency of water flow introduction, the positions of the sewage loading component 1 and the clean water loading component 2 need to be determined and to maintain a tight fit between the sewage loading component 1 and the clean water loading component 2. A limiting device is provided at the bottom of the sewage loading component 1 and the clean water loading component 2 to provide support and fix their positions.

[0046] The sewage loading component 1 includes a sewage carrying tank body 101, and a square outlet 102 with a square trough is provided at the bottom end of the sewage carrying tank body 101.

[0047] The clean water loading component 2 includes a clean water carrying tank body 201. A set of square box grooves 203 are located on the outer wall of the side plane of the clean water carrying tank body 201 from the outside to the inside. The height of the grooves 203 is higher than the top of the clean water carrying tank body 201. The square box grooves 203 correspond to the position of the square water outlet 102.

[0048] Specifically, the position of the square box groove 203 is used to adapt to the second filter protective cloth 12. The second filter protective cloth 12 is vertically inserted into the position where the clean water loading component 2 and the sewage loading component 1 are attached. The position of the second filter protective cloth 12 is fixed by the tight attachment of the sewage loading component 1 and the clean water loading component 2. The second filter protective cloth 12 is fixedly connected to the third filter protective cloth 14 through the locking connecting plate 13. When the second filter protective cloth 12 is vertically raised, the third filter protective cloth 14 is taken out from the inner cavity of the clean water carrying tank body 201.

[0049] The locking connecting plate 13 is arranged in an inverted "L" shape. The two ends of the locking connecting plate 13 are fixed to the surfaces of the second filter protective cloth 12 and the third filter protective cloth 14, respectively. There are multiple sets of locking connecting plates 13, which are linearly fixed to the surfaces of the second filter protective cloth 12 and the third filter protective cloth 14. There are multiple vertical connecting rods 9. The filter protective net 7 is integrally connected to the first filter protective cloth 8 by multiple vertical connecting rods 9.

[0050] The third filter protective cloth 14, the second filter protective cloth 12 and the first filter protective cloth 8 have the same structure, but different appearances.

[0051] The third filter protective cloth 14, the second filter protective cloth 12, and the first filter protective cloth 8 each include a set of protective frames and a protective net glued to the inside of the protective frames. The protective frames of the first filter protective cloth 8 and the third filter protective cloth 14 are semi-circular and are adapted to the inner cavities of the sewage carrying tank body 101 and the clean water carrying tank body 201, respectively. The protective frame of the second filter protective cloth 12 is square and is adapted to the groove of the square box groove 203.

[0052] The filter protection net 7 includes a set of protective frames and a tightly welded wire mesh to the protective frames, wherein the bottom end of the protective frame is flush with the bottom end of the wire mesh, and the top end of the protective frame is higher than the top end of the wire mesh.

[0053] Specifically, the filter protection net 7 is used to filter lumps, particles and other items in the coal washing process. Its first filter protection cloth 8, second filter protection cloth 12 and third filter protection cloth 14 are all multi-layered protection for coal slime so that the filtered coal slime water can be recycled.

[0054] The third filter protective cloth 14, the second filter protective cloth 12, and the first filter protective cloth 8 each include a set of protective frames and a protective net glued to the inside of the protective frames. Each set of protective frames is higher than the protective net. The filter protective net 7 includes a set of protective frames and a tight wire mesh welded to the protective frames. The top of the protective frame is higher than the top of the wire mesh. In order to prevent the water flow from guiding the coal sludge on the surface of the filter device to clean water during the lifting process of the filter device, and causing pollution again, the protective frame and the protective frame play a protective role.

[0055] The filter protection net 7, the first filter protection cloth 8, the second filter protection cloth 12, and the third filter protection cloth 14 are connected as a whole by a vertical connecting rod 9, a suspension support plate 10, and a locking connecting plate 13. When a part of the filter device is raised, the entire filter device is raised, which facilitates the filtration of coal sludge and the cleaning of the filter device. The device does not have any support components installed or fixed in the inner cavity of the sewage loading component 1 or the clean water loading component 2 to ensure easy cleaning of the inner walls of the sewage loading component 1 and the clean water loading component 2.

[0056] The bottom of the sewage loading component 1 has multiple circular water outlets 202, and multiple water outlet pipes 5 are provided at the positions of the multiple water outlets. The multiple water outlet pipes 5 are welded to the outer wall of the clean water carrying tank body 201.

[0057] In this device, if the water flow in the inner cavity of the clean water loading component 2 is selected to be static and self-purified, then the water outlet pipe 5 needs to be blocked. If the water flow in the inner cavity of the clean water loading component 2 is selected to be directly discharged, then the water outlet pipe 5 does not need to be blocked. The sealing plug used for blocking is not shown.

[0058] The limiting device includes a supporting and limiting component 3 for supporting and limiting the sewage loading component 1 and the clean water loading component 2 to maintain a tight fit between the sewage loading component 1 and the clean water loading component 2, and a lifting component 4 for raising and lowering the height of the sewage loading component 1.

[0059] The supporting and limiting component 3 includes a semi-circular base 310 and an arc-shaped base 320 that support and limit. Two sets of limiting bases 330 extend from the side plane of the semi-circular base 310. Two sets of telescopic threaded rods 340 are fixed inside the two sets of limiting bases 330. Two sets of support rods 350 are fixed on the surface of the rods of the two sets of telescopic threaded rods 340. The two sets of support rods 350 are symmetrically arranged about the center plane of the sewage inlet device.

[0060] The telescopic threaded rod 340 includes two sets of circular mating discs 342, an internal threaded rod 341 and an external threaded worm gear 343 located between the two sets of circular mating discs 342. The internal threaded rod 341 and the external threaded worm gear 343 are connected by threads. The two sets of circular mating discs 342 are respectively fixed on the opposite end faces of the internal threaded rod 341 and the external threaded worm gear 343.

[0061] The support rod 350 includes an end collar 351 sleeved on the surface of the built-in threaded rod 341, a bent support rod 352 integrally connected to the end collar 351, and a support disc 353 located at the end of the bent support rod 352. The purpose of the support disc 353 is to increase the contact area between the support rod 350 and the arc-shaped base 320 and reduce the pressure.

[0062] In this device, the distance between the sewage loading component 1 and the clean water loading component 2 is maintained by the traction between the semi-circular base 310 and the arc-shaped base 320, thereby causing the sewage loading component 1 and the clean water loading component 2 to be closely attached, and thus fixing the position between the sewage loading component 1 and the clean water loading component 2.

[0063] The lifting component 4 includes a micro motor 410 fixed to the bottom of the sewage loading component 1. A set of vertical rods is fixed at the output end of the micro motor 410. The diameter of the vertical rods is the same as that of the outer rod of the external threaded worm gear 343. A meshing component 420 is fixed on the surface of the vertical rod. There are three sets of meshing components 420. The other two sets of meshing components 420 are respectively sleeved on the surfaces of the two sets of external threaded worm gears 343. A rack gear 430 meshes between the three sets of meshing components 420. The three sets of meshing components 420 are driven to move synchronously through the rack gear 430.

[0064] The meshing assembly 420 includes a ring gear 422 and two sets of limiting rings 421 that are attached to both sides of the ring gear 422.

[0065] In the above structure, the micro motor 410 is model Y80m1-2, and the telescopic threaded rod 340 is a telescopic structure. One end of the telescopic threaded rod 340 is flush with the bottom end of the semi-circular base 310, both fitting against a flat surface such as the ground or a table. The other end of the telescopic threaded rod 340 is fixed to the bottom surface of the sewage carrying tank body 101. When the telescopic threaded rod 340 is telescopic, the sewage loading component 1 is raised or lowered. When the telescopic threaded rod 340 is retracted to its shortest distance, the sewage carrying tank body 101 and the clean water carrying tank body 201 are connected, and the openings are aligned. When the telescopic threaded rod 340 is extended, the sewage carrying tank body 101 is in a raised state. The filter device, suspended on the surface of the sewage carrying tank body 101, rises synchronously with the sewage carrying tank body 101. The specific telescopic threaded rod 340 telescopic steps are as follows:

[0066] By activating the micro motor 410, the output shaft of the micro motor 410 rotates. One set of meshing components 420 maintains synchronous speed with the output of the micro motor 410, and the three sets of meshing components 420 maintain synchronous motion through the rack gears 430. The other two sets of rack gears 430 are fixedly connected to two sets of external threaded worm gears 343, and the external threaded worm gears 343 are threadedly connected. This causes the external threaded worm gears 343 to move upward and downward relative to the internal threaded rod 341. The output shaft of the micro motor 410 rotates in the opposite direction. The top of the telescopic threaded rod 340 also includes a limiting sleeve 6 for wrapping the bottom of the external threaded worm gear 343. The purpose of the limiting sleeve 6 is to keep the external threaded worm gear 343 from disengaging from the sewage carrying tank body 101 and to allow for circumferential movement.

[0067] Working principle: Insert the clean water loading component 2 into the opening of the semi-circular base 310, and press down the side plane of the sewage loading component 1 against the side plane of the clean water loading component 2. The two sets of external threaded worm gears 343 rotate in opposite directions, and the inner cavity of the internal threaded rod 341 is turned on to start the motor, thereby causing the external threaded worm gears 343 to rotate. The sewage loading component 1 is installed directly above the limiting device. At this time, the telescopic threaded rod 340 is at its shortest length.

[0068] The suspension support plate 10 is aligned with the side wall of the sewage loading component 1 and pressed down, causing the filter protection net 7 and the first filter protection cloth 8 to be pressed into the inner cavity of the sewage loading component 1 and to fit against the inner cavity of the sewage loading component 1. The third filter protection cloth 14 is pressed into the inner cavity of the clean water loading component 2 and to fit against the inner cavity of the clean water loading component 2.

[0069] Pour coal washing wastewater into the inside of the wastewater loading component 1, or clean the inside of the wastewater loading component 1 directly. Its filter device filters the sludge and impurities produced by coal washing. If it is necessary to remove the entire filter device, simply hold the handle 11.

[0070] If it is necessary to drain the water adhering to the filter device, the micro motor 410 is rotated, which causes the meshing component 420 to mesh with the rack gear 430, thereby extending the position of the telescopic threaded rod 340. At this time, the position of the sewage loading component 1 is raised, and the third filter protective cloth 14 extends out from the inner cavity of the clean water loading component 2. At this time, the sewage loading component 1 can be moved out from the inside of the semi-circular base 310 to separate the sewage loading component 1 from the clean water loading component 2, realizing the self-purification function of the water in the inner cavity of the clean water loading component 2. At this time, the spray gun can be directly aimed at the sewage loading component 1 and the filter device to achieve the cleaning work, which is convenient for cleaning and does not require additional support devices.

[0071] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0072] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0073] In conclusion, the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coal slurry water recycling device for coal washing, characterized in that, include: The wastewater introduction device includes a wastewater loading component (1) for introducing raw coal washing liquid and a clean water loading component (2) for introducing filtered raw coal washing liquid. Both the wastewater loading component (1) and the clean water loading component (2) are semi-circular deep water tanks. The side planes of the wastewater loading component (1) and the clean water loading component (2) are tightly fitted together and connected at the position where the wastewater loading component (1) and the clean water loading component (2) are fitted together. A filtration device for filtering wastewater containing coal sludge is vertically inserted into the inner cavity of a wastewater inlet device. The filtration device includes a filter screen (7), a first filter screen (8), a second filter screen (12), and a third filter screen (14) for multi-layer filtration of coal sludge wastewater. The filter screen (7) and the first filter screen (8), the filter screen (7) and the second filter screen (12), and the second filter screen (12) and the third filter screen (14) are respectively fixed by a vertical connecting rod (9), a suspension support plate (10), and a locking connecting plate (13). A handle (11) for holding is fixed on the surface of the suspension support plate (10). A limiting device, used to support and restrict the position of the sewage inlet device; The sewage loading component (1) includes a sewage carrying tank body (101), and a square outlet (102) with a square groove is provided at the bottom end of the sewage carrying tank body (101). The water loading component (2) includes a water carrying tank body (201). A set of square box grooves (203) are provided on the outer wall of the side plane of the water carrying tank body (201) from the outside to the inside. The height of the groove (203) is higher than the top of the water carrying tank body (201). The square box groove (203) corresponds to the position of the square water outlet (102). The third filter protective cloth (14), the second filter protective cloth (12) and the first filter protective cloth (8) each include a set of protective frames and a protective net glued to the inside of the protective frame. The protective frames of the first filter protective cloth (8) and the third filter protective cloth (14) are semi-circular and are adapted to the inner cavities of the sewage carrying tank body (101) and the clean water carrying tank body (201), respectively. The protective frame of the second filter protective cloth (12) is square and is adapted to the groove of the square box groove (203). The filter protection net (7) includes a set of protective frames and a tight wire mesh welded to the protective frames, wherein the bottom end of the protective frame is flush with the bottom end of the wire mesh, and the top end of the protective frame is higher than the top end of the wire mesh.

2. The slime water recycling device for coal washing according to claim 1, characterized in that: The locking connecting plate (13) is arranged in an inverted "L" shape. The two ends of the locking connecting plate (13) are fixed to the surfaces of the second filter protective cloth (12) and the third filter protective cloth (14), respectively. There are multiple sets of the locking connecting plates (13). The multiple sets of the locking connecting plates (13) are linearly fixed to the surfaces of the second filter protective cloth (12) and the third filter protective cloth (14). There are multiple vertical connecting rods (9). The filter protective net (7) is integrally connected to the first filter protective cloth (8) through multiple vertical connecting rods (9). The third filter protective cloth (14), the second filter protective cloth (12) and the first filter protective cloth (8) have the same structure but different appearances.

3. The slime water recycling device for coal washing according to claim 2, characterized in that: The bottom end of the sewage loading component (1) is provided with multiple circular water outlets (202), and multiple water outlet pipes (5) are provided at the positions of the multiple water outlets. The multiple water outlet pipes (5) are welded to the outer wall of the clean water carrying tank body (201).

4. The slime water recycling device for coal washing according to claim 3, characterized in that: The limiting device includes a supporting and limiting component (3) for supporting and limiting the sewage loading component (1) and the clean water loading component (2) to maintain a close fit between the sewage loading component (1) and the clean water loading component (2), and a lifting component (4) for raising and lowering the height of the sewage loading component (1). The supporting and limiting component (3) includes a semi-circular base (310) that supports and limits and an arc-shaped base (320) that supports and limits. Two sets of limiting bases (330) extend from the side plane of the semi-circular base (310). Two sets of telescopic threaded rods (340) are fixed inside the two sets of limiting bases (330). Two sets of support rods (350) are fixed on the surface of the rods of the two sets of telescopic threaded rods (340). The two sets of support rods (350) are symmetrically arranged about the center plane of the sewage inlet device.

5. The slime water recycling device for coal washing according to claim 4, characterized in that: The telescopic threaded rod (340) includes two sets of circular fitting discs (342), an internal threaded rod (341) and an external threaded worm gear (343) located between the two sets of circular fitting discs (342). The internal threaded rod (341) and the external threaded worm gear (343) are connected by threads. The two sets of circular fitting discs (342) are respectively fixed on the opposite end faces of the internal threaded rod (341) and the external threaded worm gear (343).

6. The slime water recycling device for coal washing according to claim 5, characterized in that: The support rod (350) includes an end collar (351) sleeved on the surface of the built-in threaded rod (341), a bent support rod (352) integrally connected with the end collar (351), and a support disc (353) located at the end of the bent support rod (352).

7. The slime water recycling device for coal washing according to claim 6, characterized in that: The lifting component (4) includes a micro motor (410) fixed to the bottom of the sewage loading component (1). A set of vertical rods is fixed at the output end of the micro motor (410). The diameter of the vertical rods is the same as that of the outer rod of the external threaded worm (343). A meshing component (420) is fixed on the surface of the vertical rod. There are three sets of meshing components (420). The other two sets of meshing components (420) are respectively sleeved on the surfaces of the two sets of external threaded worms (343). A rack gear (430) meshes between the three sets of meshing components (420). The three sets of meshing components (420) are driven by the rack gear (430) in synchronous motion.

8. The slime water recycling device for coal washing according to claim 7, characterized in that: The meshing assembly (420) includes a ring gear (422) and two sets of limiting rings (421) attached to both sides of the ring gear (422).

Images