Mine water sludge and floating oil integrated treatment system and method

Abstract

The invention discloses a mine water sludge and oil slick integrated treatment system which comprises a control system, the control system is in communication connection with a sludge collecting and discharging system and an oil slick treatment system, the sludge collecting and discharging system comprises a submerged reciprocating type sludge scraper, and an annular air stirring sludge bucket is arranged at the bottom of the output end of the submerged reciprocating type sludge scraper. And the annular air stirring mud bucket is communicated with the wear-resistant slurry pump through a mud discharge pipeline. The invention also discloses a mine water sludge and floating oil integrated treatment method. The method comprises the following steps: acquiring related information of the pre-sedimentation tank; a sludge collecting and discharging system and a floating oil treatment system are arranged according to the related information of the pre-sedimentation tank; sludge at the bottom of the mine water pre-sedimentation tank is removed, and floating oil on the liquid level of the mine water pre-sedimentation tank is removed. According to the integrated treatment system and method for the sludge and the floating oil in the mine water, integrated removal of the sludge and the floating oil in the mine water is achieved, the system and method have the advantages of being wide in applicability, high in treatment efficiency, high in automation degree and the like, and efficient removal of the sludge and the floating oil can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine water treatment, and relates to an integrated treatment system for mine water sludge and floating oil, and also relates to an integrated treatment method for mine water sludge and floating oil. Background Art

[0002] Mine water is the groundwater pumped out from underground mines during the coal mining process, mainly composed of mineral dissolved substances, suspended particles and chemical impurities. With the development of coal mining technology, the discharge of mine water is increasing continuously. The direct discharge of mine water without treatment will lead to problems such as waste of water resources and damage to the surface ecological environment. Therefore, promoting the comprehensive treatment and resource utilization of mine water to provide qualified production and domestic water for the local area can effectively alleviate the contradiction between coal resource development and water resource shortage. The suspended solids in mine water mainly come from fine particles such as coal powder and rock powder during the coal mining process. Due to their small particle size, high ash content and difficult sedimentation, these particles not only affect the transparency of the water body, but also increase the fouling risk of the membrane system, increase the frequency of membrane cleaning, shorten the membrane replacement cycle, and greatly increase the operating cost of enterprises. Secondly, the floating oil in mine water mainly comes from lubricating oil, hydraulic oil, etc. used during the mining process. If the floating oil enters the evaporation crystallization system, it will reduce the evaporation efficiency and further affect the overall performance and economy of the mine water treatment system. Therefore, effective mine water treatment not only needs to be able to remove sludge and floating oil, but also should ensure the long-term stable operation of the treatment system, reduce the operating cost, and lay a foundation for subsequent water quality improvement and environmental restoration.

[0003] The existing mine water sludge and floating oil treatment technologies mainly use physical and chemical methods. Physical methods include precipitation, filtration, etc., and chemical methods include flocculation, oxidation-reduction, etc. In addition, there are also some special equipment, such as sludge scrapers and oil skimmers, used to remove sludge and floating oil in mine water. Traditional sludge scrapers usually adopt the traveling type, with a relatively complex structure, difficult maintenance and cleaning work, requiring a large amount of manual input, which seriously affects the operation efficiency. In addition, when the sludge volume of underground inflow water is too large, coal sludge is likely to deposit. The traditional traveling sludge scraper reciprocates the operations of lifting the rake - scraping the sludge - lifting the rake in the pool, with low scraping efficiency, and it is easy to cause the scraping system to paralyze due to poor scraping, increasing the equipment maintenance and repair costs. Secondly, the energy consumption of traditional traveling sludge scrapers is relatively high, usually requiring a large amount of power to drive the scraping process. On the other hand, the mud-water interface is blurred during the operation of existing sludge scraping equipment, and the sludge layer is easily disturbed during the scraping process, resulting in secondary floating of the sludge. In addition, existing equipment also has problems such as no integrated oil removal function, large drainage volume during the oil skimming process, and inability to efficiently solve the treatment of oil and water, affecting the operation of subsequent treatment processes.

[0004] In summary, the existing technology has problems that it is difficult to achieve the integrated treatment of mine water sludge and floating oil, with high treatment costs and low efficiency. Summary of the Invention

[0005] The object of the present invention is to provide an integrated treatment system for mine water sludge and floating oil, which solves the problems in the prior art that it is difficult to achieve integrated treatment of mine water sludge and floating oil, and the treatment cost is high and the efficiency is low.

[0006] Another object of the present invention is to provide an integrated treatment method for mine water sludge and floating oil.

[0007] The technical solution adopted by the present invention is that the integrated treatment system for mine water sludge and floating oil includes a control system, which is respectively communicatively connected to a sludge collection and discharge system and a floating oil treatment system. The sludge collection and discharge system includes a submersible reciprocating sludge scraper arranged at the bottom of the mine water pre-sedimentation tank. At the bottom of the output end of the submersible reciprocating sludge scraper, there is an annular air-agitated sludge hopper, and the annular air-agitated sludge hopper is communicated with an abrasion-resistant slurry pump through a sludge discharge pipeline; the floating oil treatment system includes a tubular oil remover arranged on the pool-side rail.

[0008] The characteristics of the present invention also lie in: The submersible reciprocating sludge scraper includes a sludge scraping module and a power module. The power module includes a hydraulic cylinder. The output end of the hydraulic cylinder is connected to one end of a piston support rod. The other end of the piston support rod is hinged to one end of a triangular arm frame, and the other end of the triangular arm frame is connected to the sludge scraping module.

[0009] The corner end of the triangular arm frame is fixed on the pool wall of the mine water pre-sedimentation tank through a triangular arm fixing frame.

[0010] The sludge scraping module includes a horizontal push rod. One end of the horizontal push rod is connected to the end of the triangular arm frame far from the piston support rod. The other end of the horizontal push rod is connected to a slide plate, and several wedge-shaped scrapers are arranged in parallel at the bottom of the slide plate.

[0011] The slide plate is slidably connected to a central shaft. The central shaft is fixed to the bottom of the mine water pre-sedimentation tank through a fixing plate and a fixed support; the central shaft is arranged between the horizontal push rod and the slide plate, and the horizontal push rod is slidably connected to the central shaft; a sludge discharge port is arranged between the wedge-shaped scraper and the slide plate.

[0012] The slide plate extends above the annular air-agitated sludge hopper through a fixed support; several air outlet holes are arranged on the annular air-agitated sludge hopper, and the air outlet holes are evenly arranged on the annular pipeline of the annular air-agitated sludge hopper. The annular pipeline of the annular air-agitated sludge hopper is communicated with a compressed air pipeline.

[0013] The tubular oil remover is arranged above the pre-sedimentation tank of mine water. The tubular oil remover includes a fixed frame, which is movably connected to the side rail of the tank. At both ends of the side of the fixed frame close to the pre-sedimentation tank of mine water, rotary wheels are respectively arranged. An oil scraping knife and an oil collecting tank are arranged between the rotary wheels, and the oil scraping knife and the oil collecting tank are cooperatively arranged; an oil suction hose is arranged between the oil scraping knife and the oil collecting tank, and the oil suction hose is sleeved on the rotary wheels, and the oil suction hose is attached to the liquid level of the pre-sedimentation tank of mine water; a motor is arranged on the fixed frame, and the motor is connected to the rotary wheels.

[0014] The output end of the motor is connected to the input end of the hydraulic cylinder.

[0015] Another technical solution adopted by the present invention is a method for integrated treatment of mine water sludge and floating oil, including the following steps: Step 1: Obtain relevant information of the pre-sedimentation tank; Step 2: Set up a sludge collection and discharge system and a floating oil treatment system according to the relevant information of the pre-sedimentation tank, and communicatively connect the sludge collection and discharge system, the floating oil treatment system with the control system; Step 3: Remove the sludge at the bottom of the pre-sedimentation tank of mine water through the sludge collection and discharge system, and clean the floating oil on the liquid level of the pre-sedimentation tank of mine water through the floating oil treatment system.

[0016] The characteristics of another technical solution of the present invention also lie in: Step 3 specifically includes the following steps: Start the motor through the control system. The output end of the motor transmits power to the rotary wheels and the hydraulic cylinder. The rotary wheels drive the oil suction hose to rotate. The oil suction hose adsorbs the floating oil on the liquid level of the pre-sedimentation tank of mine water. The oil scraping knife cleans the floating oil on the oil suction hose and collects it in the oil collecting tank; The hydraulic cylinder drives the triangular boom to rotate through the piston strut. The triangular boom drives the slide plate to reciprocate through the horizontal push rod. A plurality of wedge-shaped scraping plates arranged at the bottom of the slide plate collect the sludge at the bottom of the pre-sedimentation tank of mine water into the annular air agitation sludge hopper. The wear-resistant slurry pump discharges the sludge from the annular air agitation sludge hopper through the sludge discharge pipeline.

[0017] The beneficial effects of the present invention are as follows: The present invention can achieve the integrated removal of sludge and floating oil in mine water, and has the advantages of wide applicability, high treatment efficiency, high automation degree, simple operation and maintenance, etc. It can achieve the efficient removal of sludge and floating oil, and is applicable to the upgrading and transformation of existing equipment, and can realize the automatic operation of the whole system; At the operation level, from the cleaning, collection to the discharge link of sludge and floating oil, the present invention adopts an advanced automatic control system, which effectively reduces the workload of equipment repair and maintenance, and greatly reduces the labor cost and labor intensity; In terms of treatment efficiency, the present invention adopts an online dynamic treatment mode to achieve the efficient coordination of sludge treatment and oil-water separation. The integrated treatment process improves the treatment efficiency and effect, reduces the equipment floor area and energy consumption, further improves the environmental protection performance of mine water treatment, and conforms to the concept of green development; From the perspective of long-term operation, it significantly enhances the economic benefits of mine water treatment and provides strong support for the sustainable development of mine water treatment; In addition, the present invention also has good adaptability, can be adjusted and optimized according to the actual situation of different mine waters, realizes the upgrading and transformation of existing equipment, and improves the overall effect of mine water treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the integrated treatment system for mine water sludge and floating oil of the present invention; Figure 2 is the structural principle schematic diagram of the integrated treatment system for mine water sludge and floating oil of the present invention; Figure 3 is the structural schematic diagram of the integrated treatment system for mine water sludge and floating oil at the bottom of the mine water pre-sedimentation tank of the present invention; Figure 4 is the structural schematic diagram of the integrated treatment system for mine water sludge and floating oil at the top of the mine water pre-sedimentation tank of the present invention.

[0019] In the figure, 1. Sludge collection and discharge system; 2. Floating oil treatment system; 3. Control system; 4. Submerged reciprocating sludge scraper; 5. Ring-shaped air stirring mud bucket; 6. Wear-resistant slurry pump; 7. Tube type oil remover; 8. Hydraulic cylinder; 9. Piston support rod; 10. Triangular boom; 11. Triangular boom fixing bracket; 12. Sludge discharge port; 13. Wedge-shaped scraper; 14. Horizontal push rod; 15. Central shaft; 16. Fixed plate; 17. Fixed support; 18. Slide plate; 19. Motor; 20. Rotating wheel; 21. Oil suction hose; 22. Oil scraping knife; 23. Oil collection tank; 24. Compressed air pipeline; 25. Mud discharge pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0021] Example 1 This embodiment proposes an integrated treatment system for mine water sludge and floating oil. Combining Figure 1 and Figure 2 as shown, it includes a control system 3, which is communicatively connected to a sludge collection and discharge system 1 and a floating oil treatment system 2 respectively. The sludge collection and discharge system 1 includes a submersible reciprocating sludge scraper 4 arranged at the bottom of the mine water pre-sedimentation tank. At the bottom of the output end of the submersible reciprocating sludge scraper 4, there is an annular air-agitated sludge hopper 5, and the annular air-agitated sludge hopper 5 is connected to a wear-resistant slurry pump 6 through a sludge discharge pipeline 25; the floating oil treatment system 2 includes a tubular oil remover 7 arranged on the side rail of the tank.

[0022] Embodiment 2 This embodiment proposes an integrated treatment system for mine water sludge and floating oil. Combining Figure 1 as shown, it includes a control system 3, which is communicatively connected to a sludge collection and discharge system 1 and a floating oil treatment system 2 respectively. The sludge collection and discharge system 1 includes a submersible reciprocating sludge scraper 4 arranged at the bottom of the mine water pre-sedimentation tank. At the bottom of the output end of the submersible reciprocating sludge scraper 4, there is an annular air-agitated sludge hopper 5, and the annular air-agitated sludge hopper 5 is connected to a wear-resistant slurry pump 6 through a sludge discharge pipeline 25; the floating oil treatment system 2 includes a tubular oil remover 7 arranged on the side rail of the tank.

[0023] Combining Figure 2 as shown, the submersible reciprocating sludge scraper 4 includes a sludge scraping module and a power module. The power module includes a hydraulic cylinder 8. The output end of the hydraulic cylinder 8 is connected to one end of a piston strut 9. The other end of the piston strut 9 is hinged to one end of a triangular arm frame 10, and the other end of the triangular arm frame 10 is connected to the sludge scraping module. The corner end of the triangular arm frame 10 is fixed on the pool wall of the mine water pre-sedimentation tank through a triangular arm fixing bracket 11.

[0024] Embodiment 3 This embodiment proposes an integrated treatment system for mine water sludge and floating oil. Combining Figure 1 as shown, it includes a control system 3, which is communicatively connected to a sludge collection and discharge system 1 and a floating oil treatment system 2 respectively. The sludge collection and discharge system 1 includes a submersible reciprocating sludge scraper 4 arranged at the bottom of the mine water pre-sedimentation tank. At the bottom of the output end of the submersible reciprocating sludge scraper 4, there is an annular air-agitated sludge hopper 5, and the annular air-agitated sludge hopper 5 is connected to a wear-resistant slurry pump 6 through a sludge discharge pipeline 25; the floating oil treatment system 2 includes a tubular oil remover 7 arranged on the side rail of the tank.

[0025] Combining Figure 2As shown in the figure, the submersible reciprocating sludge scraper 4 includes a sludge scraping module and a power module. The power module includes a hydraulic cylinder 8. The output end of the hydraulic cylinder 8 is connected to one end of a piston support rod 9. The other end of the piston support rod 9 is hinged to one end of a triangular arm frame 10. The other end of the triangular arm frame 10 is connected to the sludge scraping module. The corner end of the triangular arm frame 10 is fixed to the wall of the pre-sedimentation tank of the mine water by a triangular arm fixing bracket 11.

[0026] Combined with Figure 3 As shown in the figure, the sludge scraping module includes a horizontal push rod 14. One end of the horizontal push rod 14 is connected to the end of the triangular arm frame 10 far from the piston support rod 9. The other end of the horizontal push rod 14 is connected to a slide plate 18. A number of wedge-shaped scraper plates 13 are arranged in parallel at the bottom of the slide plate 18. The slide plate 18 is slidably connected to a central shaft 15. The central shaft 15 is fixed to the bottom of the pre-sedimentation tank of the mine water by a fixing plate 16 and a fixed support 17. The central shaft 15 is arranged between the horizontal push rod 14 and the slide plate 18, and the horizontal push rod 14 is slidably connected to the central shaft 15. A sludge discharge port 12 is arranged between the wedge-shaped scraper plate 13 and the slide plate 18. The slide plate 18 extends above the annular air stirring sludge hopper 5 through the fixed support 17. A number of air outlet holes are provided on the annular air stirring sludge hopper 5. The air outlet holes are evenly arranged on the annular pipeline of the annular air stirring sludge hopper 5. The annular pipeline of the annular air stirring sludge hopper 5 is communicated with a compressed air pipeline 24.

[0027] Embodiment 4 This embodiment proposes an integrated treatment system for mine water sludge and floating oil. Combined with Figure 1 As shown in the figure, it includes a control system 3. The control system 3 is respectively communicatively connected to a sludge collection and discharge system 1 and a floating oil treatment system 2. The sludge collection and discharge system 1 includes a submersible reciprocating sludge scraper 4 arranged at the bottom of the pre-sedimentation tank of the mine water. The bottom of the output end of the submersible reciprocating sludge scraper 4 is provided with an annular air stirring sludge hopper 5. The annular air stirring sludge hopper 5 is communicated with an abrasion-resistant slurry pump 6 through a sludge discharge pipeline 25. The floating oil treatment system 2 includes a tubular oil remover 7 arranged on the side rail of the pool.

[0028] Combined with Figure 2 As shown in the figure, the submersible reciprocating sludge scraper 4 includes a sludge scraping module and a power module. The power module includes a hydraulic cylinder 8. The output end of the hydraulic cylinder 8 is connected to one end of a piston support rod 9. The other end of the piston support rod 9 is hinged to one end of a triangular arm frame 10. The other end of the triangular arm frame 10 is connected to the sludge scraping module. The corner end of the triangular arm frame 10 is fixed to the wall of the pre-sedimentation tank of the mine water by a triangular arm fixing bracket 11.

[0029] Combined with Figure 3As shown in the figure, the sludge scraping module includes a horizontal push rod 14. One end of the horizontal push rod 14 is connected to the end of the triangular boom 10 away from the piston strut 9, and the other end of the horizontal push rod 14 is connected to a slide plate 18. A plurality of wedge-shaped scrapers 13 are arranged in parallel at the bottom of the slide plate 18. The slide plate 18 is slidably connected to a central shaft 15, and the central shaft 15 is fixed to the bottom of the pre-sedimentation tank of the mine water through a fixing plate 16 and a fixed support 17; the central shaft 15 is arranged between the horizontal push rod 14 and the slide plate 18, and the horizontal push rod 14 is slidably connected to the central shaft 15; a sludge discharge port 12 is arranged between the wedge-shaped scraper 13 and the slide plate 18. The slide plate 18 extends above the annular air stirring mud hopper 5 through the fixed support 17; a plurality of air outlet holes are provided on the annular air stirring mud hopper 5, and the air outlet holes are evenly arranged on the annular pipeline of the annular air stirring mud hopper 5. The annular pipeline of the annular air stirring mud hopper 5 is communicated with a compressed air pipeline 24.

[0030] Combined with Figure 4 As shown in the figure, the tubular oil remover 7 is arranged above the pre-sedimentation tank of the mine water. The tubular oil remover 7 includes a fixing frame, and the fixing frame is movably connected to the pool side rail. Rotating wheels 20 are respectively arranged at both ends of the side of the fixing frame close to the pre-sedimentation tank of the mine water. An oil scraping knife 22 and an oil collecting tank 23 are arranged between the rotating wheels 20, and the oil scraping knife 22 and the oil collecting tank 23 are arranged in cooperation; an oil suction hose 21 is arranged between the oil scraping knife 22 and the oil collecting tank 23. The oil suction hose 21 is sleeved on the rotating wheel 20, and the oil suction hose 21 is attached to the liquid level of the pre-sedimentation tank of the mine water; a motor 19 is arranged on the fixing frame, and the motor 19 is connected to the rotating wheel 20. The output end of the motor 19 is connected to the input end of the hydraulic cylinder 8.

[0031] Example 5 The integrated treatment method for mine water sludge and floating oil proposed in this embodiment includes the following steps: Step 1: Obtain relevant information of the pre-sedimentation tank; Step 2: Set the sludge collection and discharge system 1 and the floating oil treatment system 2 according to the relevant information of the pre-sedimentation tank, and communicatively connect the sludge collection and discharge system 1, the floating oil treatment system 2 with the control system 3; Step 3: Remove the sludge at the bottom of the pre-sedimentation tank of the mine water through the sludge collection and discharge system 1, and clean the floating oil on the liquid surface of the pre-sedimentation tank of the mine water through the floating oil treatment system 2.

[0032] Example 6 The integrated treatment method for mine water sludge and floating oil proposed in this embodiment includes the following steps: Step 1: Obtain relevant information of the pre-sedimentation tank; Step 2: Set the sludge collection and discharge system 1 and the floating oil treatment system 2 according to the relevant information of the pre-sedimentation tank, and communicatively connect the sludge collection and discharge system 1, the floating oil treatment system 2 with the control system 3; Step 3: Remove the sludge at the bottom of the mine water pre-sedimentation tank through the sludge collection and discharge system 1, and clean the floating oil on the liquid surface of the mine water pre-sedimentation tank through the floating oil treatment system 2; Start the motor 19 through the control system 3. The output end of the motor 19 transmits power to the rotating wheel 20 and the hydraulic cylinder 8. The rotating wheel 20 drives the oil suction hose 21 to rotate. The oil suction hose 21 adsorbs the floating oil on the liquid surface of the mine water pre-sedimentation tank. The oil scraping knife 22 cleans the floating oil on the oil suction hose 21 and collects it in the oil collecting tank 23; The hydraulic cylinder 8 drives the triangular boom 10 to rotate through the piston strut 9. The triangular boom 10 drives the slide plate 18 to reciprocate through the horizontal push rod 14. A plurality of wedge-shaped scraping plates 13 arranged at the bottom of the slide plate 18 collect the sludge at the bottom of the mine water pre-sedimentation tank into the annular air agitation sludge hopper 5. The wear-resistant slurry pump 6 discharges the sludge from the annular air agitation sludge hopper 5 through the sludge discharge pipeline 25.

[0033] In the present invention, the annular air agitation sludge hopper 5 is arranged at the bottom of the water inlet end as the storage place for the sludge scraped by the submersible reciprocating sludge scraper 4. The wear-resistant slurry pump 6 centrally discharges the sludge from the annular air agitation sludge hopper 5 through the sludge discharge pipeline 25 to achieve the effective transportation of the sludge; the tubular oil remover 7 is arranged above the pool body to adsorb the floating oil; the air outlet holes on the annular air agitation sludge hopper 5 are evenly distributed on the annular pipeline of the sludge hopper. Compressed air enters the annular air agitation sludge hopper 5 through the pipeline to slightly agitate the sludge and air, effectively alleviating the caking of the sludge in the sludge hopper and helping to improve the sludge treatment efficiency; the wedge-shaped scraping plate 13 is arranged parallel to the horizontal push rod 14 for efficiently scraping the sludge at the bottom of the pool; In the tubular oil remover 7, the fixed frame is located above the pool body and plays a bearing role for the whole device. The fixed frame is connected to the pool edge rail and moves in parallel or vertical directions along the pool edge; wear-resistant ceramics are inlaid on both sides of the rim of the rotating wheel 20. The slow rotation of the motor 19 drives the rotating wheel 20 to connect the oil suction hose 21 to rotate; the oil suction hose 21 meanders and floats on the pool surface. During the rotation process, a pressing device for adjusting the coincidence of the oil suction hose 21 and the roller is provided on the fixed frame of the rotating wheel 20; the oil scraping knife 22 is located above the fixed frame, scrapes the oil on the surface of the oil suction hose 21 covered with oil passing by and collects it into the oil collecting tank 23. The oil suction hose 21 that has been scraped clean is then rotated and transported back to the pool by the motor 19 to continue adsorbing the floating oil.

[0034] The motor 19 in the tubular oil remover 7 and the hydraulic cylinder 8 in the submersible reciprocating sludge scraper 4 are connected in communication through circuit drive; the control system 3 is electrically connected to the annular air agitation sludge hopper 5, and the control system 3 is electrically connected to the motor 19 in the floating oil treatment system 2.

[0035] In the integrated treatment method of mine water sludge and floating oil of the present invention, when the driving hydraulic cylinder 8 of the submersible reciprocating sludge scraper 4 drives the piston support rod 9 to reciprocate, the piston support rod 9 pushes the triangular boom 10 to rotate around the hinge point. The triangular boom 10 drives the horizontal push rod 14, and the horizontal push rod 14 drives a number of wedge-shaped scrapers 13 to move together on the bottom of the tank to scrape the sludge. During the sludge scraping process, the sludge scraping module of the submersible reciprocating sludge scraper 4 will continuously reciprocate to ensure that the sludge at the bottom of the tank is completely scraped and collected. The return speed of the sludge scraping system is about 2-3 times the forward speed. The movement trajectory and speed of the sludge scraper can be adjusted according to actual needs to adapt to the sizes of different tanks and the distribution of sludge.

[0036] When the slide plate 18 slides along the horizontal push rod 14, the wedge-shaped scraper 13 moves accordingly, scraping up the sludge and collecting it into the annular air-agitated sludge hopper 5. When compressed air enters the annular air-agitated sludge hopper 5 through the compressed air pipeline 24, it sprays out from the air outlet holes to form bubbles, which slightly agitate the surrounding sludge. The wear-resistant slurry pump 6 discharges the sludge from the hopper through frequency conversion control, reducing the failure rate during the sludge transportation process and effectively ensuring the long-term stable operation of the pre-sedimentation tank. When the tubular oil skimmer 7 above the tank starts to work, the oil suction hose 21 adsorbs the floating oil on the water surface. The special material of the oil suction hose 21 enables it to have an affinity with oil molecules, effectively adsorbing the floating oil on the water surface. The tubular oil skimmer 7 can move in parallel or vertical directions along the tank edge rail laid along the tank edge, thereby realizing the oil removal operation in different areas of the tank body, improving the oil removal efficiency and effect, and ensuring that the oil stains on the entire tank surface can be effectively treated. After the oil suction hose 21 adsorbs the floating oil, it is driven by the rotating wheel 20 to return above the fixed frame, and the oil scraping knife 22 scrapes the oil on the hose and collects it into the oil collection tank 23, ensuring the efficient collection of oil and avoiding damage to the hose at the same time. The collected floating oil can be transported through a pipeline to an oil-water separator for oil-water separation. The separated oil is mainly oil sludge with a low moisture content, which is sent to the coal yard, effectively utilizing the calorific value of the oil sludge, and finally sent to the boiler for incineration and utilization. In this way, the automation, continuity and recycling of the integrated treatment of sludge and floating oil are realized. The present invention ensures the effective separation of sludge and floating oil through the coordinated work of the efficient sludge collection and discharge system 1, the floating oil treatment system 2 and the control system 3. The sludge scraping device moves along the bottom of the tank while rotating, realizing the automatic collection of sludge. The cooperation between the sludge scraping device and the oil removal component can timely separate and discharge the collected sludge and adsorbed floating oil, and realize the continuous treatment of sludge and floating oil and the recycling of the device through cyclic operation. This not only improves the treatment efficiency of mine water, but also reduces the risk of blockage of subsequent treatment equipment caused by the accumulation of sludge and floating oil.

Claims

1. The integrated treatment system for mine water sludge and floating oil is characterized by: The invention comprises a control system (3), wherein the control system (3) is communicatively connected to a sludge collection and discharge system (1) and a floating oil treatment system (2), wherein the sludge collection and discharge system (1) comprises a submerged reciprocating sludge scraper (4) arranged at the bottom of a mine water pre-sedimentation tank, wherein an annular air agitation sludge bucket (5) is arranged at the bottom of the output end of the submerged reciprocating sludge scraper (4), and the annular air agitation sludge bucket (5) is connected to a wear-resistant sludge pump (6) via a sludge discharge pipe (25); and the floating oil treatment system (2) comprises a tubular oil remover (7) arranged on a tank side rail.

2. The integrated treatment system for mine water sludge and floating oil according to claim 1 is characterized in that: The underwater reciprocating mud scraper (4) comprises a mud scraping module and a power module, the power module comprises a hydraulic cylinder (8), the output end of the hydraulic cylinder (8) is connected to one end of a piston support rod (9), the other end of the piston support rod (9) is hinged to one end of a triangular arm (10), and the other end of the triangular arm (10) is connected to the mud scraping module.

3. The integrated treatment system for mine water sludge and floating oil according to claim 2 is characterized in that: The corner end of the triangular arm frame (10) is fixed to the wall of the mine water pre-sedimentation tank via a triangular arm fixing frame (11).

4. The integrated treatment system for mine water sludge and floating oil according to claim 3 is characterized in that: The mud scraping module comprises a horizontal push rod (14), one end of which is connected to an end of a triangular arm (10) away from an end of a piston support rod (9), and the other end of which is connected to a slide plate (18). A plurality of wedge-shaped scraping plates (13) are arranged in parallel at the bottom of the slide plate (18).

5. The integrated treatment system for mine water sludge and floating oil according to claim 4 is characterized in that: The slide plate (18) is slidably connected to the central shaft (15), and the central shaft (15) is fixed to the bottom of the mine water pre-sedimentation tank via a fixed plate (16) and a fixed support (17); the central shaft (15) is arranged between a horizontal push rod (14) and the slide plate (18), and the horizontal push rod (14) is slidably connected to the central shaft (15); a sludge discharge port (12) is arranged between the wedge-shaped scraper (13) and the slide plate (18).

6. The integrated treatment system for mine water sludge and floating oil according to claim 5 is characterized in that: The slide plate (18) extends to the top of the annular air agitation hopper (5) through a fixed support (17); a plurality of air outlet holes are provided on the annular air agitation hopper (5), and the air outlet holes are evenly arranged on the annular pipeline of the annular air agitation hopper (5); the annular pipeline of the annular air agitation hopper (5) is connected to a compressed air pipeline (24).

7. The integrated treatment system for mine water sludge and floating oil according to claim 2 is characterized in that: The tubular oil remover (7) is arranged above the mine water pre-sedimentation tank. The tubular oil remover (7) comprises a fixed frame, the fixed frame is movably connected to the tank side rail, and rotating wheels (20) are respectively arranged at both ends of the fixed frame on a side close to the mine water pre-sedimentation tank. An oil scraper (22) and an oil collecting tank (23) are arranged between the rotating wheels (20), and the oil scraper (22) and the oil collecting tank (23) are arranged in coordination; an oil suction hose (21) is arranged between the oil scraper (22) and the oil collecting tank (23), and the oil suction hose (21) is sheathed on the rotating wheel (20), and the oil suction hose (21) is in contact with the liquid surface of the mine water pre-sedimentation tank; a motor (19) is arranged on the fixed frame, and the motor (19) is connected to the rotating wheel (20).

8. The integrated treatment system for mine water sludge and floating oil according to claim 7 is characterized in that: The output end of the motor (19) is connected to the input end of the hydraulic cylinder (8).

9. A method for integrated treatment of mine water sludge and floating oil, using the integrated treatment system for mine water sludge and floating oil according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Obtain relevant information of the pre-sedimentation tank; Step 2: Setting up a sludge collection and discharge system (1) and a floating oil treatment system (2) according to the relevant information of the pre-sedimentation tank, and connecting the sludge collection and discharge system (1) and the floating oil treatment system (2) to a control system (3); Step 3: Remove the sludge at the bottom of the mine water pre-sedimentation tank through the sludge collection and discharge system (1), and clean the floating oil on the surface of the mine water pre-sedimentation tank through the floating oil treatment system (2).

10. The integrated treatment method for mine water sludge and floating oil according to claim 9, characterized in that: The step three specifically comprises the following steps: starting the motor (19) through the control system (3), the output end of the motor (19) transmitting power to the rotating wheel (20) and the hydraulic cylinder (8), the rotating wheel (20) driving the oil suction hose (21) to rotate, the oil suction hose (21) absorbing the floating oil on the surface of the mine water pre-sedimentation tank, the oil scraper (22) cleaning the floating oil on the oil suction hose (21) and collecting it in the oil collecting tank (23); The hydraulic cylinder (8) drives the triangular arm (10) to rotate via the piston support rod (9), and the triangular arm (10) drives the slide plate (18) to perform reciprocating motion via the horizontal push rod (14). A plurality of wedge-shaped scrapers (13) arranged at the bottom of the slide plate (18) collect sludge at the bottom of the mine water pre-sedimentation tank into the annular air agitation sludge bucket (5), and the wear-resistant slurry pump (6) discharges the sludge from the annular air agitation sludge bucket (5) via the sludge discharge pipe (25).

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