Fly ash stabilization treatment device for synergistic remediation of slag and acidic mine wastewater

Abstract

This application relates to a fly ash stabilization treatment device for the collaborative remediation of slag and acidic mine wastewater, which includes a pool body. A slag discharge cylinder is fixedly installed on the bottom side of the pool body. A gate is installed on the slag discharge cylinder. A stirring mechanism is installed on the pool body. A mixing cylinder is vertically installed inside the pool body. A spiral conveyor is arranged inside the mixing cylinder. A first motor is installed at the top of the mixing cylinder. The rotating shaft of the first motor is fixedly connected to the top of the spiral conveyor. The mixing cylinder is equipped with a wastewater feeding mechanism and a fly ash feeding mechanism. A controller and a pH detector are installed on the side wall of the pool body. An overflow hole is provided on the side wall of the pool body. The pH detector, the wastewater feeding mechanism, and the fly ash feeding mechanism are all electrically connected to the controller. This application has the effect of facilitating the mixing of fly ash and acidic mine wastewater.

Description

Technical Field

[0001] This application relates to the field of fly ash treatment, and in particular to a fly ash stabilization treatment device for the collaborative repair of slag and acidic mine wastewater. Background Art

[0002] Municipal solid waste will generate fly ash after incineration treatment, and the fly ash contains harmful substances such as heavy metals and dioxins. The fly ash needs to be treated to reduce the harmful substances before it can be landfilled.

[0003] Currently, Chinese Patent No. CN115971222A discloses a fly ash stabilization treatment method based on the collaborative repair of slag and acidic mine wastewater, including mixing slag and fly ash to form a mixed material; landfilling the mixed material; using acidic mine wastewater to leach the mixed material and recovering the leachate; mixing fly ash and acidic mine wastewater for a neutralization reaction, filtering to obtain washing residues and washing liquid; covering the washing residues on the surface of the mixed material after leaching. Then, the leachate and the washing liquid are recovered together for treatment to recover heavy metals.

[0004] When mixing fly ash and acidic mine wastewater for a neutralization reaction and then filtering to obtain washing residues and washing liquid, generally, a stirring tank is first used for mixing, and then a filter is used to separate the washing residues and the washing liquid. However, the contents of various substances in fly ash and acidic mine wastewater are not determined. When using a stirring tank to mix fly ash and acidic mine wastewater, it is necessary to repeatedly detect the pH value of the washing liquid. Then, fly ash or acidic mine wastewater is repeatedly added according to the pH value to make the pH value of the washing liquid meet the requirements. Each time fly ash or acidic mine wastewater is re-added, it is necessary to re-stir, which increases the difficulty of mixing fly ash and acidic mine wastewater. Summary of the Invention

[0005] In order to facilitate the mixing of fly ash and acidic mine wastewater, this application provides a fly ash stabilization treatment device for the collaborative repair of slag and acidic mine wastewater.

[0006] The fly ash stabilization treatment device for the collaborative repair of slag and acidic mine wastewater provided by this application adopts the following technical solutions:

[0007] Fly ash stabilization treatment device for collaborative remediation of slag and acidic mine wastewater, including a pool body. A slag discharge cylinder is fixedly installed on the bottom side of the pool body. A gate is installed on the slag discharge cylinder. A stirring mechanism is installed on the pool body. The stirring mechanism is used to stir on the inner bottom wall of the pool bottom. The stirring mechanism is also used to scrape the washing slag towards the slag discharge cylinder. A mixing cylinder is vertically installed inside the pool body. A spiral conveyor rod is arranged inside the mixing cylinder. A first motor is installed at the top of the mixing cylinder. The rotating shaft of the first motor is fixedly connected to the top of the spiral conveyor rod. The mixing cylinder is equipped with a wastewater feeding mechanism and a fly ash feeding mechanism. The wastewater feeding mechanism is used to feed acidic mine wastewater into the mixing cylinder. The fly ash feeding mechanism is used to feed fly ash into the mixing cylinder. A controller and a pH detector are installed on the side wall of the pool body. An overflow hole is opened on the side wall of the pool body. The pH detector, the wastewater feeding mechanism, and the fly ash feeding mechanism are all electrically connected to the controller. The pH detector is used to generate acid-base information based on the pH value of the washing liquid inside the overflow hole and send it to the controller. The controller adjusts the conveying speeds of the wastewater feeding mechanism and the fly ash feeding mechanism according to the acid-base information.

[0008] By adopting the above technical solution, the acidic mine wastewater and fly ash enter the inside of the mixing cylinder together. Then the first motor is started. The first motor drives the spiral conveyor rod to convey the acidic mine wastewater and fly ash downward, so that the acidic mine wastewater and fly ash are gradually mixed and then discharged into the pool body. After the acidic mine wastewater and fly ash are discharged into the pool body, the stirring mechanism stirs the acidic mine wastewater and fly ash, so as to facilitate the mixing of the acidic mine wastewater and fly ash to react to produce washing slag and washing liquid. Then the stirring mechanism scrapes the washing slag towards the slag discharge cylinder. After a certain amount of washing slag accumulates, the valve is opened, and the washing slag is discharged from the slag discharge cylinder. Then, as the water level of the washing liquid continuously rises, it is discharged from the overflow hole, so as to facilitate the separation after the acidic mine wastewater and fly ash are mixed to form washing slag and washing liquid.

[0009] When the washing liquid is discharged from the overflow hole, the pH detector detects the pH value of the washing liquid flowing out of the overflow hole. When the pH value rises, the controller speeds up the speed of the wastewater feeding mechanism to feed the acidic mine wastewater into the mixing cylinder and reduces the speed of the fly ash feeding mechanism to feed the fly ash into the mixing cylinder. When the pH value decreases, the controller reduces the speed of the wastewater feeding mechanism to feed the acidic mine wastewater into the mixing cylinder and increases the speed of the fly ash feeding mechanism to feed the fly ash into the mixing cylinder. Thus, it is convenient for the washing liquid to flow out of the overflow hole meeting the discharge requirements, and further convenient to mix the fly ash with the acidic mine wastewater.

[0010] Optionally, the stirring mechanism includes a speed reducer, a second motor, a rotating rod, and a slag scraping assembly. The speed reducer is fixedly installed on the top side of the pool body. The body of the second motor is fixedly installed on the speed reducer. The rotating shaft of the second motor is connected to the input end of the speed reducer. The rotating rod is vertically arranged inside the pool body. The top end of the rotating rod is connected to the output end of the speed reducer. There is at least one slag scraping assembly. The slag scraping assembly includes a stirring rod and a plurality of slag scraping plates. One end of the stirring rod is fixedly connected to the bottom end of the rotating rod. The slag scraping plates are fixedly installed on the stirring rod. The plurality of slag scraping plates are arranged at intervals along the length direction of the stirring rod. The slag scraping plates are inclined to scrape the washing slag towards the slag discharge cylinder. The inner bottom wall of the pool body is gradually raised with the position of the slag discharge cylinder as the lowest point and is inclined. The stirring rod is gradually raised from the end close to the rotating rod to the other end and is inclined. The slag scraping plates are in contact with the inner bottom wall of the pool body.

[0011] By adopting the above technical solution, the second motor drives the rotating rod to rotate, and the rotating rod drives the stirring rod to rotate. The stirring rod stirs the fly ash and acidic mine wastewater inside the pool body through the scraper, so as to facilitate the mixing of the fly ash and acidic mine wastewater to form washing slag and washing liquid. At the same time, the speed reducer reduces the rotation speed of the second motor, so as to facilitate the precipitation of the washing slag on the inner bottom wall of the pool body. When the stirring rod drives the scraper to rotate, the scraper scrapes the washing slag towards the slag discharge cylinder, so as to facilitate the discharge of the washing slag inside the pool body.

[0012] Optionally, the wastewater feeding mechanism includes a water storage tank, a ring pipe, a conveying pipe, and a pumping and conveying pump. The ring pipe is fixedly sleeved on the mixing cylinder. A plurality of drain holes communicating with the mixing cylinder are formed in the inner wall of the ring pipe. The plurality of drain holes are arranged at intervals along the circumferential direction of the ring pipe. One end of the conveying pipe is fixedly connected to the ring pipe. The other end of the conveying pipe is connected to the water outlet end of the pumping and conveying pump. The conveying pipe is internally communicated with the ring pipe. The water inlet end of the pumping and conveying pump is fixedly installed on the water storage tank. The water inlet end of the pumping and conveying pump is internally communicated with the water storage tank. The water storage tank is used for storing acidic mine wastewater. The water storage tank is located on one side of the pool body. The pumping and conveying pump is electrically connected to the controller. The controller is used to control the conveying speed of the pumping and conveying pump according to the acid-base information.

[0013] By adopting the above technical solution, the pumping and conveying pump sends the acidic mine wastewater in the water storage tank into the conveying pipe, and the acidic mine wastewater inside the conveying pipe enters the ring pipe. Then the acidic mine wastewater inside the ring pipe is discharged from the drain holes towards the inside of the mixing cylinder, so as to facilitate the feeding of the acidic mine wastewater into the mixing cylinder. At the same time, when the acidic mine wastewater enters the mixing cylinder, the acidic mine wastewater impacts the fly ash inside the mixing cylinder, so as to facilitate the mixing of the acidic mine wastewater and the fly ash.

[0014] Optionally, the fly ash feeding mechanism includes a dust storage hopper, a lifting conveyor belt, a material guiding frame, and a pushing plate. The dust storage hopper is located on one side of the pool body. One end of the material guiding frame is fixedly connected to the side wall of the mixing cylinder, and the material guiding frame is internally communicated with the mixing cylinder. The lower end of the lifting conveyor belt is located below the dust storage hopper, and the upper end of the lifting conveyor belt is located inside the material guiding frame. The inner bottom wall of the material guiding frame is inclined to gradually rise from the side close to the mixing cylinder to the other side. There are multiple pushing plates, which are fixedly installed on the belt surface of the lifting conveyor belt. The multiple pushing plates are arranged at intervals along the conveying direction of the lifting conveyor belt. The lifting conveyor belt is electrically connected to the controller, and the controller is used to control the conveying speed of the lifting conveyor belt according to the acid-base information.

[0015] By adopting the above technical solution, fly ash falls from the dust storage hopper into the lifting conveyor belt, and the lifting conveyor belt sends the fly ash into the mixing cylinder through a scraper, thereby facilitating the addition of fly ash into the mixing cylinder.

[0016] Optionally, a brush is fixedly installed on the inner bottom wall of the material guiding frame on the side away from the mixing cylinder, and the brush abuts against the bottom side of the lifting conveyor belt.

[0017] By adopting the above technical solution, the brush cleans the bottom side of the lifting conveyor belt, thereby reducing the situation where the bottom side of the lifting conveyor belt is stained with fly ash.

[0018] Optionally, a shielding cover is fixedly installed on the top side of the lifting conveyor belt. The inner wall of the shielding cover abuts against the pushing plate located on the top side of the lifting conveyor belt. The bottom end of the dust storage hopper is fixedly connected to the top side of the shielding cover, and the dust storage hopper is communicated with the shielding cover.

[0019] By adopting the above technical solution, the shielding cover is beneficial to shielding fly ash, thereby reducing the situation where the fly ash on the lifting conveyor belt is blown and flying by the wind. When the fly ash falls between two adjacent scrapers from the dust storage hopper, the shielding cover levels the fly ash between the two adjacent scrapers, thereby improving the accuracy of the lifting conveyor belt in transporting fly ash.

[0020] Optionally, a pressing ring and a pressing plate are arranged inside the dust storage hopper. The periphery of the pressing ring abuts against the inner wall of the dust storage hopper. A guiding rod is fixedly installed on the top surface of the pressing plate. The guiding rod slidably penetrates through the pressing ring, and a limiting block is fixedly installed at the top end of the guiding rod. The pressing plate is located directly below the pressing ring. The inner diameter of the pressing ring is smaller than the diameter of the pressing plate. The top surface of the pressing plate gradually decreases from the middle to the periphery and is inclined.

[0021] By adopting the above technical solution, when it is necessary to add fly ash into the dust storage hopper, the pressing ring is pulled upward, and the pressing plate moves upward under the action of gravity, so that the pressing ring is separated from the pressing plate, and then it is convenient to add fly ash into the dust storage hopper. After adding the fly ash, the pressing ring and the pressing plate are made to press the fly ash located inside the dust storage hopper, so as to facilitate the dust storage hopper to discharge the fly ash into the lifting conveyor belt.

[0022] Optionally, a plurality of counterweight rings are arranged inside the ash storage hopper. The peripheral side wall of the counterweight ring abuts against the inner wall of the ash storage hopper. A first magnetic ring is fixedly installed on the bottom side of the pressing ring. A second magnetic ring is fixedly installed on the inner wall of the counterweight ring. The second magnetic ring is used to attract the first magnetic ring. The inner diameters of the first magnetic ring and the second magnetic ring are both larger than the diameter of the pressing plate. The counterweight ring is located below the pressing ring. A sliding block is fixedly installed on the peripheral side wall of the counterweight ring. A sliding groove for the sliding block to lift and slide is formed in the inner wall of the ash storage hopper. The bottom ends of each sliding groove are at the same height. From top to bottom, the lengths of the sliding grooves corresponding to the counterweight rings gradually decrease. A magnetic block is fixedly installed on the inner top wall of the sliding groove. The magnetic block is used to attract the sliding block.

[0023] By adopting the above technical solution, the fly ash inside the ash storage hopper gradually decreases, and the pressing ring gradually descends. After the pressing ring descends, the counterweight ring is adsorbed to the pressing ring through the second magnetic ring, thereby increasing the weight of the pressing ring. The reduced fly ash in the ash storage hopper is compensated by the counterweight ring, so as to facilitate the stable discharge of fly ash from the ash storage hopper to the lifting conveyor belt.

[0024] Optionally, a winch is fixedly installed on the outer side wall of the ash storage hopper. A towing rope is installed between the winch and the top surface of the pressing ring.

[0025] By adopting the above technical solution, when it is necessary to add fly ash into the ash storage hopper, the winch is started, and the winch winds up the towing rope, so as to facilitate driving the pressing ring to rise, and further facilitate adding fly ash into the ash storage hopper.

[0026] Optionally, an overflow hose and a rodless cylinder are fixedly installed on the side wall of the pool body. One end of the overflow hose is communicated with the overflow hole. The rodless cylinder is provided with an overflow tank body. The rodless cylinder is used to drive the overflow tank body to lift. The end of the overflow hose far away from the pool body is connected to the side wall of the overflow tank body. The overflow hose is communicated with the overflow tank body. The rodless cylinder is electrically connected to the controller. The controller opens and closes the rodless cylinder according to the acid-base information.

[0027] By adopting the above technical solution, when the PH detector detects that the PH value of the washing liquid discharged from the overflow hole does not meet the requirements, the rodless cylinder drives the overflow tank body to rise, so as to facilitate stopping the discharge of the washing liquid from the overflow hole. When the H detector detects that the PH value of the washing liquid discharged from the overflow hole meets the requirements, the rodless cylinder drives the overflow tank body to descend, so as to facilitate the discharge of the washing liquid from the overflow hole.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. When the washing liquid is discharged from the overflow hole, the PH detector detects the PH value of the washing liquid discharged from the overflow hole. When the PH value rises, the controller speeds up the waste water feeding mechanism to send the acidic mine waste water into the mixing cylinder, and reduces the speed of the fly ash feeding mechanism to send the fly ash into the mixing cylinder; when the PH value drops, the controller reduces the speed of the waste water feeding mechanism to send the acidic mine waste water into the mixing cylinder, and increases the speed of the fly ash feeding mechanism to send the fly ash into the mixing cylinder; thus facilitating the washing liquid to flow out of the overflow hole meeting the discharge requirements, and further facilitating the mixing of fly ash and acidic mine waste water.

[0030] 2. The first motor drives the spiral conveyor rod to rotate, thus facilitating the conveyance of fly ash to the inner bottom wall of the pool body, and further reducing the occurrence of fly ash floating in the pool body.

[0031] 3. The top side of the lifting conveyor belt is shielded by the shielding cover, thus reducing the occurrence of fly ash being blown and flying by the wind. Description of the Drawings

[0032] Figure 1 is the overall structural schematic diagram from the first perspective of the embodiment of the present application;

[0033] Figure 2 is the overall structural schematic diagram from the second perspective of the embodiment of the present application

[0034] Figure 3 is the structural schematic diagram of the pool body of the embodiment of the present application;

[0035] Figure 4 is the structural schematic diagram of the stirring mechanism of the embodiment of the present application;

[0036] Figure 5 is the structural schematic diagram of the mixing cylinder of the embodiment of the present application;

[0037] Figure 6 is the structural schematic diagram of the fly ash feeding mechanism of the embodiment of the present application;

[0038] Figure 7 is Figure 6 the cross-sectional view at A - A;

[0039] Figure 8 is Figure 7 the enlarged view at A;

[0040] Figure 9 is Figure 7 the enlarged view at B

[0041] Figure 10 is the structural schematic diagram of the pressing plate of the embodiment of the present application;

[0042] Figure 11 is the structural schematic diagram of the annular pipe of the embodiment of the present application.

[0043] Description of the reference numerals: 1. tank body; 2. slag discharge pipe; 3. gate; 4. overflow hole; 5. filter cover; 6. stirring mechanism; 61. speed reducer; 62. second motor; 63. rotating rod; 64. slag scraping assembly; 641. stirring rod; 642. slag scraping plate; 7. mixing cylinder; 8. spiral conveyor rod; 9. first motor; 10. fly ash feeding mechanism; 101. ash storage hopper; 102. lifting conveyor belt; 103. material guiding frame; 104. pushing plate; 11. brush; 12. shielding cover; 13. pressing ring; 14. pressing plate; 15. guiding rod; 16. limiting block; 17. winch; 18. towing rope; 19. counterweight ring; 20. second magnetic ring; 21. slider; 22. chute; 23. magnetic block; 24. waste water feeding mechanism; 241. water storage tank; 242. annular pipe; 243. conveying pipe; 244. pumping and sending pump; 25. drain hole; 26. controller; 27. PH detector; 28. overflow hose; 29. rodless cylinder; 30. overflow tank body; 31. first magnetic ring. Detailed implementation manners

[0044] The following further describes the present application in detail with reference to the Figure 1-11 accompanying drawings.

[0045] The embodiment of the present application discloses a fly ash stabilization treatment device for the collaborative repair of slag and acidic mine wastewater.

[0046] Referring to Figure 1 and Figure 2 , the fly ash stabilization treatment device for the collaborative repair of slag and acidic mine wastewater includes a tank body 1. A slag discharge pipe 2 is fixedly installed on the bottom side of the tank body 1, and a gate 3 is installed on the slag discharge pipe 2. Acidic mine wastewater and fly ash are added into the tank body 1, and the acidic mine wastewater and fly ash are mixed and reacted inside the tank body 1 to form washing slag and washing liquid. The washing slag precipitates on the inner bottom wall of the tank body 1, and then the gate 3 is opened, and the washing slag is discharged from the slag discharge pipe 2.

[0047] Referring to Figure 2 and Figure 3 , an overflow hole 4 is opened on the side wall of the tank body 1. A filter cover 5 is fixedly installed on the inner side wall of the tank body 1, and the filter cover 5 covers the overflow hole 4. The washing slag is blocked by the filter cover 5, so as to reduce the situation that the washing slag is discharged from the overflow hole 4. The washing liquid is discharged from the overflow hole 4.

[0048] Referring to Figure 2 and Figure 4, a stirring mechanism 6 is provided in the pool body 1. The stirring mechanism 6 includes a speed reducer 61, a second motor 62, a rotating rod 63, and a slag scraping assembly 64. The slag scraping assembly 64 includes a stirring rod 641 and a plurality of slag scraping plates 642. The speed reducer 61 is fixedly installed on the top side of the pool body 1, and the body of the second motor 62 is fixedly installed on the top side of the speed reducer 61. The rotating shaft of the second motor 62 is connected to the input end of the speed reducer 61. The rotating rod 63 is vertically arranged inside the pool body 1, and the top end of the rotating rod 63 is connected to the output end of the speed reducer 61. One end of the stirring rod 641 is fixedly connected to the bottom end of the rotating rod 63, and the slag scraping plates 642 are fixedly installed on the stirring rod 641. The plurality of slag scraping plates 642 are arranged at intervals along the length direction of the stirring rod 641. The slag scraping plates 642 are in contact with the inner bottom wall of the pool body 1, and the slag scraping plates 642 are inclined to scrape the washing slag towards the slag discharge cylinder 2.

[0049] Start the second motor 62. The second motor 62 drives the rotating rod 63 to rotate through the speed reducer 61, which is beneficial to reducing the rotation speed of the rotating rod 63, and further reducing the occurrence of stirring the washing slag. The rotating rod 63 drives the scraper to stir the acidic mine wastewater and fly ash through the stirring rod 641, thereby accelerating the mixing reaction of the acidic mine wastewater and fly ash. At the same time, the scraper scrapes the washing slag towards the slag discharge cylinder 2, facilitating the discharge of the washing slag inside the pool body 1.

[0050] Refer to Figure 3 , Figure 4 , the inner bottom wall of the pool body 1 is gradually raised and inclined with the position of the slag discharge cylinder 2 as the lowest point, and the end of the stirring rod 641 close to the rotating rod 63 is gradually lifted and inclined to the other end. Through the guidance of the inner bottom wall of the pool bottom, it is convenient for the washing slag to move towards the slag discharge cylinder 2, and further convenient for discharging the washing slag.

[0051] Refer to Figure 3 , Figure 5 , a mixing cylinder 7 is vertically arranged inside the pool body 1, and the outer wall of the mixing cylinder 7 is fixedly connected to the inner wall of the pool body 1. A spiral conveyor rod 8 is vertically arranged inside the mixing cylinder 7. A first motor 9 is fixedly installed at the top end of the mixing cylinder 7, and the rotating shaft of the first motor 9 is fixedly connected to the top end of the spiral conveyor rod 8. Put the fly ash and acidic mine wastewater into the mixing cylinder 7, and then the first motor 9 drives the spiral conveyor rod 8 to rotate. The spiral conveyor rod 8 drives the fly ash and acidic mine wastewater to move to the inner bottom wall of the pool body 1, thereby reducing the situation where the fly ash floats inside the pool body 1.

[0052] Refer to Figure 6 , Figure 7, a mixing cylinder 7 is provided with a fly ash feeding mechanism 10. The fly ash feeding mechanism 10 includes a dust storage hopper 101, a lifting conveyor belt 102, a material guiding frame 103 and a push plate 104. The dust storage hopper 101 is located on one side of the pool body 1. One end of the material guiding frame 103 is fixedly connected to the side wall of the mixing cylinder 7, and the material guiding frame 103 is communicated with the inside of the mixing cylinder 7. The lower end of the lifting conveyor belt 102 is located below the dust storage hopper 101, and the upper end of the lifting conveyor belt 102 is located inside the material guiding frame 103. There are multiple push plates 104, and the push plates 104 are fixedly installed on the belt surface of the lifting conveyor belt 102, and the multiple push plates 104 are arranged at intervals along the conveying direction of the lifting conveyor belt 102.

[0053] The fly ash is stored in the dust storage hopper 101, and then the fly ash falls from the dust storage hopper 101 into the lifting conveyor belt 102. The lifting conveyor belt 102 pushes the fly ash into the material guiding frame 103 through the push plate 104.

[0054] Refer to Figure 7 , Figure 8 , the inner bottom wall of the material guiding frame 103 is gradually lifted from the side close to the mixing cylinder 7 to the other side and is inclined. The fly ash enters the inside of the mixing cylinder 7 along the inclination of the inner bottom wall of the material guiding frame 103, so as to facilitate the addition of fly ash into the inside of the mixing cylinder 7.

[0055] Refer to Figure 8 , a brush 11 is fixedly installed on the inner bottom wall of the material guiding frame 103 on the side far from the mixing cylinder 7, and the brush 11 abuts against the bottom side of the lifting conveyor belt 102. The brush 11 scrapes off the fly ash sticking to the bottom side of the lifting conveyor belt 102, so as to facilitate the fly ash to fall into the inside of the material guiding frame 103.

[0056] Refer to Figure 7 , Figure 8 , a shielding cover 12 is fixedly installed on the top side of the lifting conveyor belt 102. The bottom end of the dust storage hopper 101 is fixedly connected to the shielding cover 12, and the dust storage hopper 101 is communicated with the shielding cover 12. The shielding cover 12 shields the top side of the lifting conveyor belt 102, so as to reduce the situation that the fly ash is blown and lifted by the wind.

[0057] The inner wall of the shielding cover 12 abuts against the push plate 104 located on the top side of the lifting conveyor belt 102. When the fly ash enters between two adjacent push plates 104 on the lifting conveyor belt 102 from the dust storage hopper 101, the shielding cover 12 scrapes the fly ash flat, so as to facilitate the adjustment of the conveying speed of the lifting conveyor belt 102, and further change the amount of fly ash added to the mixing cylinder 7.

[0058] Refer to Figure 9, a pressure ring 13 and a pressing plate 14 are arranged inside the ash storage hopper 101. The peripheral side wall of the pressure ring 13 abuts against the inner side wall of the ash storage hopper 101, and the pressing plate 14 is located below the pressure ring 13. The inner diameter of the pressure ring 13 is smaller than the diameter of the pressing plate 14. A plurality of guide rods 15 are fixedly installed on the top surface of the pressing plate 14. The guide rods 15 slidably penetrate through the pressure ring 13, and a limiting block 16 is fixedly installed at one end of the guide rod 15 away from the pressing plate 14.

[0059] When it is necessary to add fly ash into the ash storage hopper 101, the pressure ring 13 is pulled upward, and the pressing plate 14 is separated from the pressure ring 13 under the drive of gravity. Then the fly ash is poured from the embossing above the pressing plate 14, and the fly ash falls into the ash storage hopper 101 along the top surface of the pressing plate 14. When it is necessary to discharge the fly ash in the ash storage hopper 101 into the lifting conveyor belt 102, the pressure ring 13 is released, and the pressure ring 13 drives the pressing plate 14 to extrude the fly ash, so as to facilitate the discharge of the fly ash in the ash storage hopper 101 to the lifting conveyor belt 102. At the same time, the pressure ring 13 and the pressing plate 14 cooperate to block the top end of the ash storage hopper 101, thereby reducing the situation of fly ash flying inside the ash storage hopper 101.

[0060] Refer to Figure 9 , Figure 10 , the top surface of the pressing plate 14 is gradually lowered from the middle to the peripheral side and is inclined, so as to facilitate the fly ash on the top surface of the pressing plate 14 to fall into the ash storage hopper 101.

[0061] Refer to Figure 9 , at least one winch 17 is fixedly installed on the outer side wall of the ash storage hopper 101. In the implementation of this application, there are two winches 17, and they are symmetrically arranged on the ash storage hopper 101. A traction rope 18 is installed between the winch 17 and the top surface of the pressure ring 13. By winding and unwinding the traction rope 18 through the winch 17, it is convenient to drive the pressure ring 13 to lift and lower.

[0062] Refer to Figure 9 , a plurality of counterweight rings 19 are arranged inside the ash storage hopper 101, and the counterweight rings 19 are located below the pressure ring 13. The peripheral side wall of the counterweight ring 19 abuts against the inner wall of the ash storage hopper 101. A first magnetic ring 31 is fixedly installed on the bottom side of the pressure ring 13, and a second magnetic ring 20 is fixedly installed on the inner wall of the counterweight ring 19. The inner diameters of the first magnetic ring 31 and the second magnetic ring 20 are both larger than the diameter of the pressing plate 14, and a sliding block 21 is fixedly installed on the peripheral side wall of the counterweight ring 19. A sliding groove 22 for the sliding block 21 to lift and slide is opened on the inner wall of the ash storage hopper 101. The bottom ends of each sliding groove 22 are at the same height, and the length of the sliding groove 22 corresponding to the counterweight ring 19 decreases from top to bottom. A magnetic block 23 is fixedly installed on the inner top wall of each sliding groove 22, and the magnetic block 23 is used to attract the sliding block 21.

[0063] When the ash storage hopper 101 discharges fly ash to the lifting conveyor belt 102, the fly ash inside the ash storage hopper 101 gradually decreases, causing the pressure ring 13 and the pressing plate 14 to gradually descend. Subsequently, the counterweight ring 19 is adsorbed to the pressure ring 13 through the first magnetic ring 31 and the second magnetic ring 20, thereby increasing the weight of the pressure ring 13, which in turn facilitates the discharge of the reduced fly ash in part of the ash storage hopper 101. As the weight of the pressure ring 13 increases with the reduction of fly ash, it is convenient for the ash storage hopper 101 to discharge fly ash at a uniform speed. When it is necessary to add fly ash into the ash storage hopper 101, the pressure ring 13 is pulled upward. Subsequently, the slider 21 is blocked by the magnet 23, and the counterweight ring 19 is separated from the pressure ring 13. Then the magnet 23 attracts the slider 21, causing the counterweight ring 19 to be suspended in the ash storage hopper 101.

[0064] Refer to Figure 9 、 Figure 10 , the top and bottom sides of the counterweight ring 19 and the second magnetic ring 20 are gradually raised from the inside to the outside in an inclined setting, facilitating the fall of fly ash from the top side of the counterweight ring 19 and the second magnetic ring 20 into the ash storage hopper 101. The bottom side of the first magnetic ring 31 is gradually raised from the inside to the outside in an inclined setting, facilitating the mutual attraction between the first magnetic ring 31 and the second magnetic ring 20.

[0065] Refer to Figure 2 、 Figure 11 , the mixing cylinder 7 is provided with a waste water feeding mechanism 24, and the waste water feeding mechanism 24 includes a water storage tank 241, a ring pipe 242, a conveying pipe 243, and a pumping pump 244. The ring pipe 242 is fixedly sleeved on the mixing cylinder 7. The position of the ring pipe 242 is lower than that of the guiding frame 103 and higher than that of the overflow hole 4. A plurality of drain holes 25 communicating with the mixing cylinder 7 are opened on the inner wall of the ring pipe 242, and the plurality of drain holes 25 are arranged at intervals along the circumferential direction of the ring pipe 242.

[0066] One end of the conveying pipe 243 is fixedly connected to the ring pipe 242, and the other end of the conveying pipe 243 is connected to the water outlet end of the pumping pump 244. The conveying pipe 243 is internally communicated with the ring pipe 242. The water inlet end of the pumping pump 244 is fixedly installed in the water storage tank 241, and the water inlet end of the pumping pump 244 is internally communicated with the water storage tank 241. The water storage tank 241 is used for storing acidic mine waste water, and the water storage tank 241 is located on one side of the pool body 1.

[0067] The pumping pump 244 pumps the acidic mine waste water inside the water storage tank 241 into the conveying pipe 243, and the acidic mine waste water inside the conveying pipe 243 enters the ring pipe 242. Then the acidic mine waste water enters the inside of the mixing cylinder 7 from the drain holes 25, facilitating the addition of acidic mine waste water into the inside of the mixing cylinder 7. At the same time, when the acidic mine waste water enters the inside of the mixing cylinder 7 from the drain holes 25, the acidic mine waste water impacts the fly ash located inside the mixing cylinder 7, thereby accelerating the mixing reaction between the fly ash and the acidic mine waste water.

[0068] Refer to Figure 1, Figure 2 A controller 26 is fixedly installed on the top side of the pool body 1, and a PH detector 27 is fixedly installed on the side wall of the pool body 1. The controller 26 is electrically connected to the PH detector 27, the pumping pump 244, and the lifting conveyor belt 102.

[0069] The PH detector 27 detects the PH value of the washing liquid flowing out from the overflow hole 4 to generate acid-base information and sends it to the controller 26. The controller 26 controls the first motor 9, the second motor 62, the pumping pump 244, and the lifting conveyor belt 102 according to the acid-base information.

[0070] When the PH value of the washing liquid flowing out from the overflow hole 4 is high, the controller 26 increases the conveying speed of the lifting conveyor belt 102 and decreases the pumping speed of the pumping pump 244, so as to conveniently lower the PH value of the washing liquid inside the pool body 1. When the PH value of the washing liquid flowing out from the overflow hole 4 is low, the controller 26 decreases the conveying speed of the lifting conveyor belt 102 and increases the pumping speed of the pumping pump 244, so as to conveniently increase the PH value of the washing liquid inside the pool body 1. By detecting the PH value of the washing liquid flowing out from the overflow hole 4 in real time and then adjusting the conveying speeds of the pumping pump 244 and the lifting conveyor belt 102 according to the PH value, it is beneficial to maintain the PH value balance of the washing liquid discharged from the overflow hole 4, and further convenient to collect the washing liquid with a PH value meeting the requirements. If the required PH value of the washing liquid is 6 - 9, the median 7.5 is taken as the reference to judge whether the PH value flowing out from the overflow hole 4 is high or low.

[0071] Refer to Figure 1 , Figure 2 An overflow hose 28 and a rodless cylinder 29 are fixedly installed on the side wall of the pool body 1. One end of the overflow hose 28 is communicated with the overflow hole 4. The rodless cylinder 29 is provided with an overflow trough body 30, and the rodless cylinder 29 is used to drive the overflow trough body 30 to lift and lower. The end of the overflow hose 28 far away from the pool body 1 is connected to the side wall of the overflow trough body 30, and the overflow hose 28 is communicated with the overflow trough body 30. The rodless cylinder 29 is electrically connected to the controller 26, and the controller 26 opens and closes the rodless cylinder 29 according to the acid-base information.

[0072] When the washing liquid flowing out of the overflow hole 4 does not meet the requirements, the controller 26 activates the rodless cylinder 29. The rodless cylinder 29 drives the overflow tank body 30 to rise, so that the washing liquid in the overflow tank body 30 flows back into the pool body 1. When the washing liquid flowing out of the overflow hole 4 meets the requirements, the controller 26 activates the rodless cylinder 29. The rodless cylinder 29 drives the overflow tank body 30 to descend, thus facilitating the drainage of the washing liquid in the pool body 1 into the overflow tank body 30. The washing liquid is temporarily collected through the overflow tank body 30, thereby reducing the occurrence of collecting washing liquid with a pH value not meeting the requirements. If the required pH value of the washing liquid is 6 - 9, the pH value of the washing liquid between 6.5 - 8.5 meets the requirements, and the pH value of the washing liquid less than 6.5 or greater than 8.5 does not meet the requirements. Leave some redundancy so that the overflow tank body 30 has enough time to rise and fall.

[0073] The implementation principle of the fly ash stabilization treatment device for the collaborative repair of slag and acidic mine wastewater in the embodiment of the present application is as follows: when the pH value of the washing liquid discharged from the overflow hole 4 increases or decreases, the controller 26 adjusts the conveying speeds of the wastewater feeding mechanism 24 and the fly ash feeding mechanism 10, so as to facilitate the adjustment of the pH value of the washing liquid inside the pool body 1, and further facilitate the mixing of fly ash and acidic mine wastewater.

[0074] The above are all the preferred embodiments of the present application. Without restricting the protection scope of the present application accordingly, therefore: all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. Fly ash stabilization treatment device for synergistic remediation of slag and acidic mine wastewater, characterized in that: It includes a pool body (1), a slag discharge cylinder (2) is fixedly installed on the bottom side of the pool body (1), a gate (3) is installed on the slag discharge cylinder (2), a stirring mechanism (6) is installed on the pool body (1), the stirring mechanism (6) is used for stirring on the inner bottom wall of the pool bottom, and the stirring mechanism (6) is also used for scraping the washing slag towards the slag discharge cylinder (2). A mixing cylinder (7) is vertically installed inside the pool body (1), a spiral conveyor rod (8) is arranged inside the mixing cylinder (7), a first motor (9) is installed at the top end of the mixing cylinder (7), the rotating shaft of the first motor (9) is fixedly connected to the top end of the spiral conveyor rod (8). The mixing cylinder (7) is equipped with a waste water feeding mechanism (24) and a fly ash feeding mechanism (10), the waste water feeding mechanism (24) is used for feeding acidic mine waste water into the mixing cylinder (7), the fly ash feeding mechanism (10) is used for feeding fly ash into the mixing cylinder (7). A controller (26) and a pH detector (27) are installed on the side wall of the pool body (1), an overflow hole (4) is opened on the side wall of the pool body (1), the pH detector (27), the waste water feeding mechanism (24) and the fly ash feeding mechanism (10) are all electrically connected to the controller (26), the pH detector (27) is used for generating acid-base information according to the pH value of the washing liquid inside the overflow hole (4) and sending it to the controller (26), and the controller (26) adjusts the conveying speeds of the waste water feeding mechanism (24) and the fly ash feeding mechanism (10) according to the acid-base information; The fly ash feeding mechanism (10) includes a ash storage hopper (101), a lifting conveyor belt (102), a material guiding frame (103) and a push plate (104), and the ash storage hopper (101) is located on one side of the pool body (1); A pressure ring (13) and a pressure plate (14) are arranged inside the ash storage hopper (101), the peripheral side of the pressure ring (13) abuts against the inner wall of the ash storage hopper (101), a guide rod (15) is fixedly installed on the top surface of the pressure plate (14), the guide rod (15) slidably penetrates through the pressure ring (13), a limit block (16) is fixedly installed at the top end of the guide rod (15), the pressure plate (14) is located directly below the pressure ring (13), the inner diameter of the pressure ring (13) is smaller than the diameter of the pressure plate (14), and the top surface of the pressure plate (14) is gradually lowered from the middle to the peripheral side and is inclined; A plurality of counterweight rings (19) are arranged inside the ash storage hopper (101). The peripheral side wall of the counterweight ring (19) abuts against the inner wall of the ash storage hopper (101). A first magnetic ring (31) is fixedly installed on the bottom side of the pressing ring (13). A second magnetic ring (20) is fixedly installed on the inner wall of the counterweight ring (19). The second magnetic ring (20) is used to attract the first magnetic ring (31). The inner diameters of the first magnetic ring (31) and the second magnetic ring (20) are both larger than the diameter of the pressing plate (14). The counterweight ring (19) is located below the pressing ring (13). A sliding block (21) is fixedly installed on the peripheral side wall of the counterweight ring (19). A sliding groove (22) for the sliding block (21) to lift and slide is formed in the inner wall of the ash storage hopper (101). The bottom ends of each sliding groove (22) are at the same height. From top to bottom, the length of the sliding groove (22) corresponding to the counterweight ring (19) gradually decreases. A magnetic block (23) is fixedly installed on the inner top wall of the sliding groove (22). The magnetic block (23) is used to attract the sliding block (21).

2. The fly ash stabilization treatment device for the collaborative remediation of slag and acidic mine wastewater according to claim 1, wherein: The stirring mechanism (6) includes a speed reducer (61), a second motor (62), a rotating rod (63) and a slag scraping assembly (64). The speed reducer (61) is fixedly installed on the top side of the pool body (1). The body of the second motor (62) is fixedly installed on the speed reducer (61). The rotating shaft of the second motor (62) is connected to the input end of the speed reducer (61). The rotating rod (63) is vertically arranged inside the pool body (1). The top end of the rotating rod (63) is connected to the output end of the speed reducer (61). There is at least one slag scraping assembly (64). The slag scraping assembly (64) includes a stirring rod (641) and a plurality of slag scraping plates (642). One end of the stirring rod (641) is fixedly connected to the bottom end of the rotating rod (63). The slag scraping plates (642) are fixedly installed on the stirring rod (641). The plurality of slag scraping plates (642) are arranged at intervals along the length direction of the stirring rod (641). The slag scraping plates (642) are inclined to scrape the washing slag towards the slag discharge cylinder (2). The inner bottom wall of the pool body (1) is gradually raised in an inclined manner with the position of the slag discharge cylinder (2) being the lowest point. One end of the stirring rod (641) close to the rotating rod (63) to the other end is gradually lifted in an inclined manner. The slag scraping plates (642) abut against the inner bottom wall of the pool body (1).

3. The fly ash stabilization treatment device for synergistic remediation of slag and acidic mine wastewater according to claim 1, characterized in that: The wastewater feeding mechanism (24) includes a water storage tank (241), an annular pipe (242), a conveying pipe (243) and a pumping pump (244). The annular pipe (242) is fixedly sleeved on the mixing cylinder (7). A plurality of drain holes (25) communicating with the mixing cylinder (7) are formed in the inner wall of the annular pipe (242). The plurality of drain holes (25) are arranged at intervals along the circumferential direction of the annular pipe (242). One end of the conveying pipe (243) is fixedly connected to the annular pipe (242), and the other end of the conveying pipe (243) is connected to the water outlet end of the pumping pump (244). The conveying pipe (243) is internally communicated with the annular pipe (242). The water inlet end of the pumping pump (244) is fixedly installed in the water storage tank (241), and the water inlet end of the pumping pump (244) is internally communicated with the water storage tank (241). The water storage tank (241) is used for storing acidic mine wastewater. The water storage tank (241) is located on one side of the pool body (1). The pumping pump (244) is electrically connected to the controller (26), and the controller (26) is used to control the conveying speed of the pumping pump (244) according to the acid-base information.

4. The fly ash stabilization treatment device for collaborative remediation of slag and acidic mine wastewater according to claim 1, wherein: One end of the material guiding frame (103) is fixedly connected to the side wall of the mixing cylinder (7). The material guiding frame (103) is internally communicated with the mixing cylinder (7). The lower end of the lifting conveyor belt (102) is located below the ash storage hopper (101), and the upper end of the lifting conveyor belt (102) is located inside the material guiding frame (103). The inner bottom wall of the material guiding frame (103) is gradually lifted from one side close to the mixing cylinder (7) to the other side and is inclined. There are a plurality of pushing plates (104). The pushing plates (104) are fixedly installed on the belt surface of the lifting conveyor belt (102). The plurality of pushing plates (104) are arranged at intervals along the conveying direction of the lifting conveyor belt (102). The lifting conveyor belt (102) is electrically connected to the controller (26), and the controller (26) is used to control the conveying speed of the lifting conveyor belt (102) according to the acid-base information.

5. The fly ash stabilization treatment device for collaborative remediation of slag and acidic mine wastewater according to claim 4, characterized in that: A brush (11) is fixedly installed on the inner bottom wall of the material guiding frame (103) on the side away from the mixing cylinder (7), and the brush (11) abuts against the bottom side of the lifting conveyor belt (102).

6. The fly ash stabilization treatment device for the collaborative remediation of slag and acidic mine wastewater according to claim 4, wherein: A shielding cover (12) is fixedly installed on the top side of the lifting conveyor belt (102). The inner wall of the shielding cover (12) abuts against the pushing plate (104) located on the top side of the lifting conveyor belt (102). The bottom end of the ash storage hopper (101) is fixedly connected to the shielding cover (12), and the ash storage hopper (101) is communicated with the shielding cover (12).

7. The fly ash stabilization treatment device for the collaborative repair of slag and acidic mine wastewater according to claim 1, wherein: A hoist (17) is fixedly installed on the outer side wall of the ash storage hopper (101), and a traction rope (18) is installed between the hoist (17) and the top surface of the pressing ring (13).

8. The fly ash stabilization treatment device for the collaborative remediation of slag and acidic mine wastewater according to claim 1, wherein: The side wall of the pool body (1) is fixedly installed with an overflow hose (28) and a rodless cylinder (29). One end of the overflow hose (28) is communicated with an overflow hole (4). The rodless cylinder (29) is provided with an overflow tank body (30). The rodless cylinder (29) is used to drive the overflow tank body (30) to lift and lower. The end of the overflow hose (28) far away from the pool body (1) is connected to the side wall of the overflow tank body (30). The overflow hose (28) is communicated with the overflow tank body (30). The rodless cylinder (29) is electrically connected to a controller (26). The controller (26) opens and closes the rodless cylinder (29) according to the acid-base information.

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