Mine sewage sludge dewatering device

Abstract

This utility model provides a mine wastewater sludge dewatering device, relating to the field of mine wastewater sludge treatment technology. It includes a casing, with a support frame fixedly connected to the inner wall of the top of the casing. A hanging plate is fixedly connected to the top of the support frame, and a housing is fixedly connected to the top of the hanging plate. An opening is provided on the inner wall of the housing, and a pressure rod is slidably mounted on the inner wall of the housing. When the dewatering pressure plate of this utility model squeezes the sludge, the water in the sludge is pushed by the pressure to rotate the baffle around the fixed rod, compressing the torsion spring and opening the opening, allowing water to enter the cavity of the dewatering pressure plate. Simultaneously, the metal elastic strip on the side wall of the baffle further assists in the baffle's reset, ensuring the opening closes after dewatering. A hanger at the top of the fixed frame is used to fix a filter screen. Both the hanger and the filter screen are arc-shaped, and the end of the hanger is provided with a limiting protrusion to ensure the filter screen is securely installed. The filter screen can filter fine sludge in the wastewater, improving the wastewater purification effect.

Description

Technical Field

[0001] This utility model relates to the field of mine wastewater and sludge treatment technology, and in particular to a mine wastewater and sludge dewatering device. Background Technology

[0002] Mine wastewater and sludge are symbiotic pollutants of water and mud generated during coal mining and washing. Their core components are high suspended solids, high hardness, high COD, heavy metals, and small amounts of radioactive substances. Direct discharge will seriously pollute soil, water bodies, and groundwater. They fall under the categories of industrial hazardous waste and solid waste. Therefore, wastewater and sludge must be separated first, and then the wastewater and sludge must be treated separately.

[0003] In existing technologies, dewatering is required during the treatment of mine wastewater sludge. However, to improve dewatering efficiency, significant pressure is applied to the sludge to extract water. If the extracted water is not promptly diverted for centralized pretreatment, it affects the subsequent treatment efficiency of both the sludge and wastewater. Therefore, this invention designs a mine wastewater sludge dewatering device. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model embodiment is to provide a mine sewage sludge dewatering device, which can solve the technical problem that the sewage cannot be diverted in time for centralized pretreatment after water separation, which affects the subsequent treatment efficiency of sludge and sewage.

[0005] This utility model embodiment proposes a mine wastewater sludge dewatering device, including a casing. A support frame is fixedly connected to the inner wall of the top of the casing. A hanging plate is fixedly connected to the top of the support frame. A housing is fixedly connected to the top of the hanging plate. An opening is provided on the inner wall of the housing. A pressure rod is slidably provided on the inner wall of the housing. The bottom end of the pressure rod extends into the interior of the casing and is fixedly connected to a dewatering pressure plate. The dewatering pressure plate is slidably disposed on the inner wall of the casing. A motor is fixedly connected to the side wall of the housing. A first gear and a second gear are rotatably connected to the inner wall of the housing. The output shaft of the motor is connected to the second gear. A gear is fixedly connected at its shaft center. The first gear and the second gear mesh with each other. The inner wall of the pressure rod has a notch, and multiple teeth are fixedly connected to the inner wall of the notch. The second gear meshes with the multiple teeth. The dehydration pressure plate has a cavity inside. The bottom inner wall of the dehydration pressure plate has multiple openings. The inner walls of the multiple openings are fixedly connected to a fixing frame. The inner wall of the fixing frame is fixedly connected to a fixing rod. A baffle is movably sleeved on the wall of the fixing rod. A hanger is fixedly connected to the top side wall of the fixing frame. A filter screen is provided inside the hanger.

[0006] Preferably, a first rubber pad is fixedly provided on the inner wall of the bottom end of the fixing frame, and a second rubber pad is fixedly connected to the top end of the baffle. The first rubber pad is pressed and disposed at the bottom of the baffle, and the top end of the second rubber pad is set as an arc surface and pressed and disposed on the inner wall of the fixing frame.

[0007] Preferably, the hanger and the filter screen are respectively configured as arc shapes, and the end of the hanger facing away from the fixed frame is provided with a limiting protrusion.

[0008] Preferably, a torsion spring is movably sleeved on the wall of the fixed rod, one end of the torsion spring is fixedly connected to the inner wall of the baffle, and the other end of the torsion spring is fixedly connected to the inner wall of the fixed frame.

[0009] Preferably, a metal elastic strip is fixedly connected to the side wall of the baffle, and the end of the metal elastic strip opposite to the baffle is fixedly connected to the inner wall of the dehydration pressure plate.

[0010] Preferably, a trapezoidal guide block is fixedly connected to the side wall of the dehydration plate, and a guide groove matching the trapezoidal guide block is opened on the inner wall of the casing, and the trapezoidal guide block is slidably disposed on the inner wall of the guide groove.

[0011] Preferably, a water filter box is fixedly connected to the top of the hanging plate, a pump body is fixedly connected to the top of the water filter box, a filter frame is provided inside the water filter box, a connecting pipe is provided inside the water filter box, the connecting pipe extends to the top of the filter frame, and the bottom wall of the connecting pipe extends into the interior of the dewatering pressure plate.

[0012] Preferably, the connecting pipe is a spiral flexible hose, the bottom end of the connecting pipe extends into the interior of the dehydration pressure plate and is fixedly connected to a connecting pipe, and multiple pumping pipes are fixedly connected to the wall of the connecting pipe.

[0013] Preferably, the side wall of the chassis has an opening, and the chassis is hinged to the inner wall of the opening with a cover plate. A first sealing gasket is fixedly connected to the inner wall of the opening, and the first sealing gasket is pressed against the side wall of the cover plate. A second sealing gasket is fixedly connected to the top of the cover plate, and the top of the second sealing gasket is pressed against the inner wall of the top of the opening of the chassis.

[0014] Preferably, the inner wall of the cover plate has a groove, and an elastic metal strip is fixedly connected to the inner wall of the groove. A limit block is fixedly connected to the top of the elastic metal strip. A limit slot is opened on the inner wall of the top of the opening of the chassis. The limit block is inserted into the inner wall of the limit slot. A pull rod is fixedly connected to the side wall of the limit block. A strip-shaped opening is opened on the inner wall of the cover plate. The pull rod extends through the strip-shaped opening to the outer side of the cover plate.

[0015] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following: In this embodiment of the invention, when the dewatering plate squeezes the sludge, the water in the sludge is pushed by the pressure to rotate the baffle around the fixed rod, compressing the torsion spring and opening the opening, allowing water to enter the cavity of the dewatering plate. At the same time, the metal elastic strip on the side wall of the baffle further assists in the baffle's reset, ensuring that the opening closes after dewatering. The hanger at the top of the fixed frame is used to fix the filter screen. Both the hanger and the filter screen are arc-shaped, and the end of the hanger is provided with a limiting protrusion to ensure that the filter screen is installed firmly. The filter screen can filter out fine sludge in the sewage, improving the sewage purification effect.

[0016] In this embodiment of the invention, the motor output shaft drives the first gear, which is rotatably connected to the inner wall of the housing, to rotate. The first gear meshes with the second gear, thereby driving the second gear to rotate synchronously. The pressure rod is slidably disposed on the inner wall of the opening of the housing. Multiple teeth fixed at the recess of its inner wall mesh with the second gear. When the second gear rotates, it drives the pressure rod to move up and down vertically through the teeth. The bottom end of the pressure rod extends into the housing and is fixedly connected to a dewatering pressure plate. The trapezoidal guide block on the side wall of the dewatering pressure plate is slidably disposed in the guide groove on the inner wall of the housing to ensure that the dewatering pressure plate rises and falls smoothly and avoids deviation. When the motor rotates forward, the pressure rod drives the dewatering pressure plate to move downward, applying a squeezing force to the sludge in the housing to achieve sludge dewatering. Attached Figure Description

[0017] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention. Throughout the drawings, the same reference numerals denote the same components. Obviously, the drawings described below are merely some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1 This is a three-dimensional structural view of a mine wastewater sludge dewatering device proposed in this utility model.

[0019] Figure 2 This is a structural cross-sectional view of a mine wastewater sludge dewatering device proposed in this utility model.

[0020] Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle section.

[0021] Figure 4 for Figure 2 A magnified schematic diagram of the structure of part B in the middle section.

[0022] In the diagram: 1. Chassis, 2. Support frame, 3. Hanging plate, 4. Box body, 5. Pressure rod, 6. Dehydration pressure plate, 7. Motor, 8. First gear, 9. Second gear, 10. Gear teeth, 11. Fixing frame, 12. Fixing rod, 13. Baffle, 14. Torsion spring, 15. Hanger, 16. Filter screen, 17. First rubber pad, 18. Second rubber pad, 19. Metal elastic strip, 20. Trapezoidal guide block, 21. Filter tank, 22. Pump body, 23. Filter frame, 24. Connecting pipe, 25. Connecting pipe, 26. Pumping pipe, 27. Cover plate, 28. First sealing gasket, 29. Second sealing gasket, 30. Elastic metal strip, 31. Limiting block, 32. Pull rod. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions in the embodiments of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0024] Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts disclosed in this utility model.

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention.

[0026] Reference manual attached Figures 1 to 4The present invention provides a structure for a mine wastewater sludge dewatering device, comprising a housing 1, a support frame 2 fixedly connected to the inner wall of the top of the housing 1, a hanging plate 3 fixedly connected to the top of the support frame 2, a box body 4 fixedly connected to the top of the hanging plate 3, an opening in the inner wall of the box body 4, a pressure rod 5 slidably mounted on the inner wall of the box body 4, the bottom end of the pressure rod 5 extending into the interior of the housing 1 and fixedly connected to a dewatering pressure plate 6, the dewatering pressure plate 6 slidably mounted on the inner wall of the housing 1, a motor 7 fixedly connected to the side wall of the box body 4, a first gear 8 and a second gear 9 rotatably connected to the inner wall of the box body 4, and the output shaft of the motor 7 being connected to the first gear 8. The shaft of gear 8 is fixedly connected, and the first gear 8 and the second gear 9 are meshed with each other. The inner wall of the pressure rod 5 has a notch, and multiple teeth 10 are fixedly connected to the inner wall of the notch. The second gear 9 is meshed with the multiple teeth 10. The dehydration pressure plate 6 has a cavity inside, and multiple openings are opened on the inner wall of the bottom end of the dehydration pressure plate 6. The inner walls of the multiple openings are fixedly connected to the fixing frame 11. The inner wall of the fixing frame 11 is fixedly connected to the fixing rod 12. The baffle 13 is movably sleeved on the rod wall of the fixing rod 12. The top side wall of the fixing frame 11 is fixedly connected to the hanger 15, and the inside of the hanger 15 is provided with a filter screen 16.

[0027] The hanger 15 and the filter screen 16 are respectively set as arc shape. The end of the hanger 15 away from the fixed frame 11 is provided with a limiting protrusion. The rod wall of the fixed rod 12 is movably sleeved with a torsion spring 14. One end of the torsion spring 14 is fixedly connected to the inner wall of the baffle 13, and the other end of the torsion spring 14 is fixedly connected to the inner wall of the fixed frame 11. A metal elastic strip 19 is fixedly connected to the side wall of the baffle 13. The end of the metal elastic strip 19 away from the baffle 13 is fixedly connected to the inner wall of the dehydration pressure plate 6.

[0028] The casing 1 serves as the core support and dewatering chamber of the device, providing a stable installation foundation for all functional components. The support frame 2 fixed to the inner wall of the top of the casing 1 supports the hanging plate 3. The box 4 fixed to the top of the hanging plate 3 provides installation space for the power drive structure. The hanging plate 3 also provides installation support for the filter tank 21. The opening on the side wall of the casing 1 is used for adding sludge and removing the dewatered sludge cake.

[0029] The power for dewatering is provided by a motor 7 fixed to the side wall of the housing 4. The output shaft of the motor 7 drives the first gear 8, which is rotatably connected to the inner wall of the housing 4, to rotate. The first gear 8 meshes with the second gear 9, thereby driving the second gear 9 to rotate synchronously. The pressure rod 5 is slidably set on the inner wall of the opening of the housing 4. Multiple teeth 10 fixed at the recess of its inner wall mesh with the second gear 9. When the second gear 9 rotates, it drives the pressure rod 5 to move up and down in the vertical direction through the teeth 10. The bottom end of the pressure rod 5 extends into the inside of the housing 1 and is fixedly connected to the dewatering pressure plate 6. When the motor 7 rotates forward, the pressure rod 5 drives the dewatering pressure plate 6 to move downward, applying a squeezing force to the sludge in the housing 1 to achieve sludge dewatering.

[0030] The dewatering plate 6 has an internal cavity, and a fixing frame 11 is fixed at multiple openings on the inner wall of the bottom. A baffle 13 and a torsion spring 14 are movably sleeved on the fixing rod 12 on the inner wall of the fixing frame 11. The torsion spring 14 provides elastic force to the baffle 13, so that the baffle 13 closes the opening of the fixing frame 11 in the normal state. When the dewatering plate 6 squeezes the sludge, the water in the sludge is pushed by the pressure to rotate the baffle 13 around the fixing rod 12, compressing the torsion spring 14 and opening the opening, allowing water to enter the cavity of the dewatering plate 6. At the same time, the metal elastic strip 19 on the side wall of the baffle 13 further assists the baffle 13 in resetting, ensuring that the opening closes after dewatering. The hanger 15 at the top of the fixing frame 11 is used to fix the filter screen 16. Both the hanger 15 and the filter screen 16 are arc-shaped, and the end of the hanger 15 is provided with a limiting protrusion to ensure that the filter screen 16 is installed firmly. The filter screen 16 can filter fine sludge in the sewage, improving the sewage purification effect.

[0031] After dewatering is completed, motor 7 reverses, driving pressure rod 5 and dewatering pressure plate 6 to rise and reset. The dewatered sludge cake can be removed by opening cover plate 27. The entire device achieves efficient sludge dewatering through a gear-driven extrusion structure, achieves wastewater purification and recycling through dual filtration of filter screen and filter frame, and ensures a clean working environment through a sealing and locking structure. The coordinated operation of each component not only improves the dewatering efficiency and effect of mine wastewater sludge, but also realizes the recycling of water resources, adapting to the large-scale needs of mine wastewater treatment.

[0032] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following: In this embodiment of the invention, when the dewatering plate squeezes the sludge, the water in the sludge is pushed by the pressure to rotate the baffle around the fixed rod, compressing the torsion spring and opening the opening, allowing water to enter the cavity of the dewatering plate. At the same time, the metal elastic strip on the side wall of the baffle further assists in the baffle's reset, ensuring that the opening closes after dewatering. The hanger at the top of the fixed frame is used to fix the filter screen. Both the hanger and the filter screen are arc-shaped, and the end of the hanger is provided with a limiting protrusion to ensure that the filter screen is installed firmly. The filter screen can filter out fine sludge in the sewage, improving the sewage purification effect.

[0033] In one possible implementation, a first rubber pad 17 is fixedly provided on the inner wall of the bottom end of the fixing frame 11, and a second rubber pad 18 is fixedly connected to the top end of the baffle 13. The first rubber pad 17 is pressed and provided on the bottom of the baffle 13, and the top end of the second rubber pad 18 is set as an arc surface and pressed and provided on the inner wall of the fixing frame 11.

[0034] The first rubber pad 17 at the bottom of the fixed frame 11 is pressed tightly against the bottom of the baffle 13, and the second rubber pad 18 at the top of the baffle 13 is pressed tightly against the inner wall of the fixed frame 11, which enhances the sealing performance and prevents sludge from entering the cavity of the dewatering press plate 6.

[0035] A trapezoidal guide block 20 is fixedly connected to the side wall of the dehydration plate 6. A guide groove matching the trapezoidal guide block 20 is opened on the inner wall of the casing 1. The trapezoidal guide block 20 is slidably disposed on the inner wall of the guide groove.

[0036] The trapezoidal guide block 20 on the side wall of the dehydration plate 6 is slidably set in the guide groove on the inner wall of the machine casing 1 to ensure that the dehydration plate 6 rises and falls smoothly and avoids deviation.

[0037] A water filter box 21 is fixedly connected to the top of the hanging plate 3. A pump body 22 is fixedly connected to the top of the water filter box 21. A filter frame 23 is provided inside the water filter box 21. A connecting pipe 24 is provided inside the water filter box 21. The connecting pipe 24 extends above the filter frame 23. The bottom end of the connecting pipe 24 extends into the interior of the dewatering pressure plate 6. The connecting pipe 24 is a spiral flexible hose. The bottom end of the connecting pipe 24 extends into the interior of the dewatering pressure plate 6 and is fixedly connected to a connecting pipe 25. Multiple water pumping pipes 26 are fixedly connected to the wall of the connecting pipe 25.

[0038] The filter tank 21 at the top of the hanging plate 3 is used to recycle the purified wastewater. After the pump body 22 at the top of the filter tank 21 is started, the filtered wastewater in the cavity of the dewatering pressure plate 6 is drawn into the filter tank 21 through the liquid pumping system consisting of the connecting pipe 24, the connecting pipe 25, and the pumping pipe 26. The connecting pipe 24 is set as a spiral flexible hose, which can adapt to the lifting and lowering movement of the dewatering pressure plate 6 and avoid damage to the pipe by pulling. The filter frame 23 inside the filter tank 21 performs secondary filtration on the wastewater to further remove impurities. The purified water resources can be recycled and reused, achieving the effect of energy saving and water saving.

[0039] An opening is provided on the side wall of the chassis 1. A cover plate 27 is hinged to the inner wall of the opening of the chassis 1. A first sealing gasket 28 is fixedly connected to the inner wall of the opening of the chassis 1. The first sealing gasket 28 is pressed and set on the side wall of the cover plate 27. A second sealing gasket 29 is fixedly connected to the top of the cover plate 27. The top of the second sealing gasket 29 is pressed and set on the top inner wall of the opening of the chassis 1.

[0040] After the cover plate 27, which is hinged to the inner wall of the opening, is closed, the first sealing gasket 28 on its side wall presses against the inner wall of the opening of the chassis 1, and the second sealing gasket 29 at the top presses against the inner wall at the top of the opening of the chassis 1, thus achieving a double seal and preventing sewage leakage during the dehydration process.

[0041] The inner wall of the cover plate 27 has a groove, and an elastic metal strip 30 is fixedly connected to the inner wall of the groove. A limit plug 31 is fixedly connected to the top of the elastic metal strip 30. A limit slot is opened on the inner wall of the top of the opening of the chassis 1. The limit plug 31 is inserted into the inner wall of the limit slot. A pull rod 32 is fixedly connected to the side wall of the limit plug 31. A strip-shaped opening is opened on the inner wall of the cover plate 27. The pull rod 32 extends through the strip-shaped opening to the outside of the cover plate 27.

[0042] The elastic metal strip 30 in the groove of the inner wall of the cover plate 27 pushes the limiting plug 31 into the limiting slot of the chassis 1 to lock and fix the cover plate 27; pull the pull rod 32 on the outside of the cover plate 27 to drive the limiting plug 31 to compress the elastic metal strip 30 and disengage from the limiting slot, so that the cover plate 27 can be opened, which is convenient to operate.

[0043] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the preferred embodiments; however, those skilled in the art can fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and not to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mine wastewater sludge dewatering device, characterized in that, The device includes a chassis, characterized in that: a support frame is fixedly connected to the inner wall of the top of the chassis; a hanging plate is fixedly connected to the top of the support frame; a housing is fixedly connected to the top of the hanging plate; an opening is provided on the inner wall of the housing; a pressure rod is slidably provided on the inner wall of the housing; the bottom end of the pressure rod extends into the interior of the chassis and is fixedly connected to a dehydration pressure plate; the dehydration pressure plate is slidably disposed on the inner wall of the chassis; a motor is fixedly connected to the side wall of the housing; a first gear and a second gear are rotatably connected to the inner wall of the housing; and the output shaft of the motor is fixed to the axis of the first gear. The connection is as follows: the first gear and the second gear are meshed with each other; the inner wall of the pressure rod has a notch, and multiple teeth are fixedly connected to the inner wall of the notch; the second gear meshes with the multiple teeth respectively; the dehydration pressure plate has a cavity inside; the bottom inner wall of the dehydration pressure plate has multiple openings; the inner walls of the multiple openings are fixedly connected to a fixing frame; the inner wall of the fixing frame is fixedly connected to a fixing rod; a baffle is movably sleeved on the wall of the fixing rod; a hanger is fixedly connected to the top side wall of the fixing frame; and a filter screen is provided inside the hanger.

2. The mine wastewater sludge dewatering device according to claim 1, characterized in that, A first rubber pad is fixedly provided on the inner wall of the bottom end of the fixing frame, and a second rubber pad is fixedly connected to the top end of the baffle. The first rubber pad is pressed and set at the bottom of the baffle, and the top end of the second rubber pad is set as an arc surface and pressed and set on the inner wall of the fixing frame.

3. The mine wastewater sludge dewatering device according to claim 1, characterized in that, The hanger and the filter screen are respectively set in an arc shape, and the end of the hanger away from the fixed frame is provided with a limiting protrusion.

4. The mine wastewater sludge dewatering device according to claim 1, characterized in that, A torsion spring is movably sleeved on the wall of the fixed rod. One end of the torsion spring is fixedly connected to the inner wall of the baffle, and the other end of the torsion spring is fixedly connected to the inner wall of the fixed frame.

5. The mine wastewater sludge dewatering device according to claim 1, characterized in that, A metal elastic strip is fixedly connected to the side wall of the baffle, and the end of the metal elastic strip opposite to the baffle is fixedly connected to the inner wall of the dehydration pressure plate.

6. The mine wastewater sludge dewatering device according to claim 1, characterized in that, A trapezoidal guide block is fixedly connected to the side wall of the dehydration plate, and a guide groove matching the trapezoidal guide block is opened on the inner wall of the chassis. The trapezoidal guide block is slidably disposed on the inner wall of the guide groove.

7. The mine wastewater sludge dewatering device according to claim 1, characterized in that, A water filter box is fixedly connected to the top of the hanging plate, and a pump body is fixedly connected to the top of the water filter box. A filter frame is provided inside the water filter box, and a connecting pipe is provided inside the water filter box. The connecting pipe extends to the top of the filter frame, and the bottom wall of the connecting pipe extends into the interior of the dewatering pressure plate.

8. The mine wastewater sludge dewatering device according to claim 7, characterized in that, The connecting pipe is a spiral flexible tube, the bottom end of the connecting pipe extends into the interior of the dehydration pressure plate and is fixedly connected to a connecting pipe, and multiple water pumping pipes are fixedly connected to the wall of the connecting pipe.

9. The mine wastewater sludge dewatering device according to claim 1, characterized in that, An opening is provided on the side wall of the chassis. A cover plate is hinged to the inner wall of the opening. A first sealing gasket is fixedly connected to the inner wall of the opening. The first sealing gasket is pressed against the side wall of the cover plate. A second sealing gasket is fixedly connected to the top of the cover plate. The top of the second sealing gasket is pressed against the inner wall of the top of the opening of the chassis.

10. The mine wastewater sludge dewatering device according to claim 9, characterized in that, The inner wall of the cover plate has a groove, and an elastic metal strip is fixedly connected to the inner wall of the groove. A limit block is fixedly connected to the top of the elastic metal strip. A limit slot is opened on the inner wall of the top of the opening of the chassis. The limit block is inserted into the inner wall of the limit slot. A pull rod is fixedly connected to the side wall of the limit block. A strip-shaped opening is opened on the inner wall of the cover plate. The pull rod extends through the strip-shaped opening to the outside of the cover plate.

Images