Heavy metal mine acid wastewater treatment equipment and method

Abstract

The invention discloses heavy metal mine acid wastewater treatment equipment and method, and belongs to the technical field of wastewater treatment. The heavy metal mine acid wastewater treatment equipment comprises a slag screening barrel, a first treatment box is arranged outside one side of the slag screening barrel, a second treatment box is arranged outside one side of the first treatment box, a water collecting pipe is arranged at the top of the inner side of the slag screening barrel, and one end of the top of the water collecting pipe is in threaded connection with a guide table; the outer wall of the guide table is fixedly welded to the inner wall of the slag screening barrel, a screen is in threaded connection with one end of the bottom of the water collecting pipe, a first motor is in threaded connection with the center of the bottom of the screen, a scraper is fixed to the output end of the first motor, the outer wall of the scraper is attached to the inner wall of the screen, and a drain outlet is formed in one side of the screen. And a blow-off pipe is welded outside the blow-off port. The problems that in the prior art, slag cannot be filtered when acidic wastewater is treated, so that a filtering device is blocked by the slag, and meanwhile, the treatment effect of the acidic wastewater is affected are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a heavy metal mine acid wastewater treatment device and method. Background Art

[0002] A mine refers to an independent production and operation unit that mines ores with a certain mining area. The vast majority of my country's mineral resources are coal mines, pyrite and polymetallic sulfide ores. The source of sulfate in acidic mine wastewater is the oxidation of a certain amount of sulfur and sulfide in the ore during coal mining. There is a large amount of acidic wastewater in the mines opened by the mines. In order to prevent acidic wastewater from polluting the environment, it needs to be treated.

[0003] After searching, the prior art (Announcement No.: CN208308498U) is a treatment device for acid-base neutralization of mine wastewater. The article proposes "including a displacer and an alkaline wastewater container, the upper end outer surface of the displacer is fixedly installed with an acid raw material feed port, and a first feed liquid pipe is arranged on one side outer surface of the displacer, one end of the first feed liquid pipe is fixedly installed with an acid wastewater container, and a third feed liquid pipe is fixedly connected to one side outer surface of the acid wastewater container, one end of the third feed liquid pipe is fixedly installed with a neutralization reaction container, a filter screen is fixedly installed inside the neutralization reaction container, and a bottom end position of the filter screen is fixedly installed on the other side outer surface of the neutralization reaction container near the filter screen. The device has a discharge port, a No. 2 liquid pipe is fixedly installed on the outer surface of the other side of the acidic wastewater container, and an alkaline raw material feed port is arranged on the upper outer surface of the alkaline wastewater container. The device can replace the precious metal ions of the acidic wastewater before the acid-base wastewater reacts by using a displacer, and recover the usable metals. The heat released during the acid-base neutralization can be quickly dissipated through the setting of the heat dissipation layer, and the damage of the neutralization reaction container will not be accelerated due to excessive temperature. The setting of the discharge port and the filter screen can prevent the salt generated by the acid-base neutralization from being discharged from the water outlet, avoiding the hot pot with the water outlet blocked. The whole structure is simple, the operation is convenient, and the use effect is better than the traditional method.

[0004] However, the existing technology cannot filter slag when treating acidic wastewater, which causes the slag to clog the filtering device and affects the treatment effect of acidic wastewater. Therefore, it is necessary to design a heavy metal mine acidic wastewater treatment equipment. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing design cannot filter slag when treating acidic wastewater, resulting in slag blocking the filtering device and affecting the treatment effect of acidic wastewater.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A heavy metal mine acid wastewater treatment equipment comprises a screening barrel, a first treatment box is provided on the outside of one side of the screening barrel, and a second treatment box is provided on the outside of one side of the first treatment box, a water collecting pipe is provided on the inner top of the screening barrel, and a guide platform is screwed on one end of the top of the water collecting pipe, the outer wall of the guide platform is welded and fixed to the inner wall of the screening barrel, a screen is screwed on one end of the bottom of the water collecting pipe, a first motor is screwed on the center of the bottom of the screen, and a scraper is fixed on the output end of the first motor, the outer wall of the scraper is fitted with the inner wall of the screen, a sewage outlet is provided on one side of the screen, and a sewage outlet is welded to the outside of the sewage outlet, a movable opening is provided on the outer wall of one side of the sewage outlet pipe, an electric slide rail is screwed on the top of the outer wall of the screen, and a slider is slidably installed inside the electric slide rail, a sealing block is inserted into the inside of the sewage outlet pipe, and the slider A support rod is welded to the outer wall, and the other end of the support rod is welded and fixed to the outer wall of the sealing block, a telescopic hose is sleeved on the sewage pipe, a filter cartridge is provided on the other side of the screening barrel, and the other end of the telescopic hose extends into the filter cartridge, a support is welded to the bottom inner side of the filter cartridge, and a pair of shock-absorbing pads are glued to the top end surface of the support, a vibration motor is screwed to the top of the shock-absorbing pad, and a vertical rod is fixed to the output end of the vibration motor, a filter layer is clamped inside the filter cartridge, and the bottom of the filter layer is welded and fixed to one end of the top of the vertical rod, a shock-absorbing ring is glued to the outer wall of the filter layer, and the outer wall of the shock-absorbing ring fits the inner wall of the filter cartridge, a discharge pipe is welded to the bottom of the filter cartridge, a feed pipe is welded to the bottom of the screening barrel, and the other end of the feed pipe extends into the first processing box, and the other end of the discharge pipe extends into the feed pipe.

[0007] Preferably, the sealing block is located outside the sewage outlet, the outer contour of the sealing block is the same as the shape of the movable outlet, and the screen is hemispherical.

[0008] Preferably, the filter layer is composed of gauze and activated carbon, and the gauze is wrapped around the outside of the activated carbon.

[0009] Preferably, a top cover is inserted at the top of the filter cartridge, the water collecting pipe is a corrugated telescopic pipe, connecting plates are screwed around the bottom of the water collecting pipe, and a tension spring is welded to the top end face of the connecting plate, and the top end of the tension spring is welded and fixed to the bottom end face of the guide platform.

[0010] Preferably, a material guide plate is welded to the inner wall at one end of the first processing box and the second processing box, and a partition is installed on the inner wall at the other end of the first processing box and the second processing box through a rotating shaft, and a plurality of leakage holes are equidistantly opened on the top end surface of the partition, and a third motor is fixed on the rotating shaft used to connect the partition.

[0011] Preferably, the outer walls at the other ends of the first processing box and the second processing box are both provided with a discharge port, a movable groove is provided inside the discharge port, and a movable port is provided at the top of the movable groove, a sealing plate is slidably installed inside the movable groove, and a lifting block is welded on the top of the sealing plate, and the other end of the lifting block extends into the movable port.

[0012] Preferably, a suction pump is screwed on one side of the first processing box, and a feed pipe is plugged into the output end of the suction pump, the other end of the feed pipe is plugged and connected to the second processing box, a filter screen is screwed on the inner wall of one side of the first processing box, and the filter screen is sleeved on the outside of the suction pump.

[0013] Preferably, a pair of slides are welded to the top of the first processing box and the second processing box, and a moving seat is clamped between each pair of slides, electric drive wheels are screwed at both ends of the moving seat, and the electric drive wheels extend to the interior of the moving seat, an electric lifting rod is screwed at the bottom center of the moving seat, and the telescopic end of the electric lifting rod is screwed to a connecting frame, a linkage rod is inserted on the connecting frame, and transmission rods are welded at both ends of the linkage rod, and a number of stirring plates are equidistantly welded to the outer wall of the transmission rod.

[0014] Preferably, a first gear is welded to one end of the linkage rod, a driving groove is provided on the bottom end face of the movable seat, and a second motor is screwed inside the driving groove, a second gear is fixed to the output end of the second motor, and a belt is sleeved on the second gear, and the bottom of the belt is sleeved on the first gear.

[0015] A method for treating acidic wastewater from heavy metal mines comprises the following steps: Step 1: Wastewater filtration. The acidic wastewater generated in the heavy metal mine is discharged into the slag barrel. The acidic wastewater will flow into the water collecting pipe under the guidance of the guide platform. The slag in the acidic wastewater can be filtered out through the screen. The filtered wastewater will flow into the first treatment box through the feed pipe. The storage capacity of the water collecting pipe can be expanded by utilizing the elasticity of the water collecting pipe. The tension spring can play a buffering role when the water collecting pipe is extended.

[0016] Step 2: Slag treatment, use the electric slide rail to drive the slider to move, under the traction of the support rod, the sealing block can be moved from the movable port, and the first motor is used to drive the scraper to rotate, so that the slag filtered out of the screen can be pushed to the sewage outlet, and the slag is guided by the telescopic hose into the filter cylinder and falls on the filter layer. By running the vibration motor and using the vertical rod transmission, the slag on the filter layer can be vibrated, which is beneficial to separate the wastewater adhered to the surface of the slag. The wastewater will enter the feed pipe through the discharge pipe and be transported to the first treatment box by the feed pipe. The shock-absorbing pad and shock-absorbing ring can achieve a shock-absorbing effect when the vibration motor is running.

[0017] Step three: wastewater treatment, by adding neutralizer to the first treatment box and the second treatment box, adjusting the pH value, so that the heavy metal ions form hydroxide precipitation, starting the second motor through the controller, the second gear can drive the belt to transmit, under the traction of the belt, the first gear will rotate synchronously, the rotation of the first gear will drive the transmission rod to rotate through the linkage rod, the stirring plate can be used to stir the wastewater, which is conducive to the full mixing of the neutralizer and the wastewater, and the controller drives the electric drive wheel to make the movable seat move on the slide, which can change the position of the mixing and stirring, and the mixing is completed, the wastewater is left to stand, and the third motor is used to drive the partition to rotate, the sediment will roll to the bottom of the box along the guide plate, close the partition, and use the suction pump and the feeding pipe to pump the water in the first treatment box into the second treatment box for secondary treatment to improve the treatment effect.

[0018] Compared with the prior art, the present invention provides a heavy metal mine acid wastewater treatment equipment, which has the following beneficial effects: 1. The present invention discharges the acidic wastewater generated in the heavy metal mine into the screening barrel, and the acidic wastewater flows into the water collecting pipe under the guidance of the guide platform. The slag in the acidic wastewater can be filtered out through the screen, and the filtered wastewater flows into the first processing box through the feeding pipe. The electric slide rail is used to drive the slider to move. Under the traction of the support rod, the sealing block can be moved from the movable port. The first motor is used to drive the scraper to rotate, and the slag filtered out by the screen can be pushed to the sewage outlet. This method can filter the slag in the wastewater and avoid slag blockage. Equipment affects the treatment effect of the equipment on acidic wastewater. The slag will enter the filter cartridge and fall on the filter layer through the guidance of the telescopic hose. The slag on the filter layer can be vibrated by running the vibration motor and using the vertical rod transmission, which is beneficial to separate the wastewater adhering to the surface of the slag. The wastewater will enter the feed pipe through the discharge pipe and be transported to the first treatment box by the feed pipe. The shock-absorbing pad and shock-absorbing ring can achieve a shock-absorbing effect when the vibration motor is running. At the same time, this method can clean the slag to prevent the slag from accumulating on the screen and affecting the passage of wastewater.

[0019] 2. The storage capacity of the water collecting pipe can be expanded by utilizing the elasticity of the water collecting pipe. The tension spring can play a buffering role when the water collecting pipe is extended. Starting the second motor can make the second gear drive the belt to transmit. Under the traction of the belt, the first gear will rotate synchronously. The rotation of the first gear will drive the transmission rod to rotate through the linkage rod. The stirring plate can be used to stir the wastewater, which is conducive to the full mixing of the neutralizer and the wastewater. The controller drives the electric drive wheel to move the movable seat on the slide, and the position of the mixing and stirring can be changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall isometric view of a heavy metal mine acid wastewater treatment device proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a screening barrel of a heavy metal mine acid wastewater treatment device proposed by the present invention; Figure 3 This is a schematic diagram of the bottom structure of a screen of a heavy metal mine acid wastewater treatment device proposed by the present invention; Figure 4 This is an overall cross-sectional view of a heavy metal mine acid wastewater treatment device proposed by the present invention; Figure 5 This is an overall vertical section view of a heavy metal mine acid wastewater treatment device proposed by the present invention; Figure 6 This is a schematic diagram of the overall structure of a heavy metal mine acid wastewater treatment device proposed by the present invention; Figure 7 This is an overall side view of a heavy metal mine acid wastewater treatment device proposed by the present invention.

[0021] Description of the figure numbers: 1. Screening barrel; 2. First treatment box; 3. Second treatment box; 4. Collecting pipe; 5. Guide platform; 6. Screen; 7. First motor; 8. Scraper; 9. Drainage outlet; 10. Drainage pipe; 11. Movable outlet; 12. Electric slide rail; 13. Sliding block; 14. Sealing block; 15. Support rod; 16. Telescopic hose; 17. Filter cartridge; 18. Support platform; 19. Shock-absorbing pad; 20. Vibrating motor; 21. Vertical rod; 22. Filter layer; 23. Shock-absorbing ring; 24. Discharge pipe; 25. Feed pipe; 26. Top cover; 27. Connecting plate; 28. Tension spring; 29, guide plate; 30, partition; 31, leakage hole; 32, discharge port; 33, moving groove; 34, moving port; 35, sealing plate; 36, lifting block; 37, suction pump; 38, feeding pipe; 39, slide; 40, moving seat; 41, electric drive wheel; 42, electric lifting rod; 43, connecting frame; 44, linkage rod; 45, transmission rod; 46, stirring plate; 47, first gear; 48, driving groove; 49, second motor; 50, second gear; 51, belt; 52, third motor; 53, controller; 54, filter. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example

[0023] See also Figure 1-4A heavy metal mine acid wastewater treatment equipment comprises a slag barrel 1, a first treatment box 2 is arranged outside one side of the slag barrel 1, and a second treatment box 3 is arranged outside one side of the first treatment box 2, a water collecting pipe 4 is arranged on the inner top of the slag barrel 1, and a guide platform 5 is screwed on one end of the top of the water collecting pipe 4, and the outer wall of the guide platform 5 is welded and fixed to the inner wall of the slag barrel 1, a screen 6 is screwed on one end of the bottom of the water collecting pipe 4, a first motor 7 is screwed on the bottom center of the screen 6, and a scraper 8 is fixed to the output end of the first motor 7, the outer wall of the scraper 8 is in contact with the inner wall of the screen 6, and a sewage outlet is opened on one side of the screen 6 9, and a sewage pipe 10 is welded to the outside of the sewage outlet 9, and a movable opening 11 is opened on the outer wall of one side of the sewage pipe 10, an electric slide rail 12 is screwed to the top of the outer wall of the screen 6, and a slider 13 is slidably installed inside the electric slide rail 12, a sealing block 14 is inserted into the sewage pipe 10, a support rod 15 is welded to the outer wall of the slider 13, and the other end of the support rod 15 is welded and fixed to the outer wall of the sealing block 14, a telescopic hose 16 is sleeved on the sewage pipe 10, and a filter cartridge 17 is provided on the other side of the slag barrel 1, and the other end of the telescopic hose 16 extends into the filter cartridge 17, and the inside of the filter cartridge 17 A support 18 is welded to the bottom of the side, and a pair of shock-absorbing pads 19 are glued to the top end surface of the support 18. A vibration motor 20 is screwed to the top of the shock-absorbing pad 19, and a vertical rod 21 is fixed to the output end of the vibration motor 20. A filter layer 22 is clamped inside the filter cartridge 17, and the bottom of the filter layer 22 is welded and fixed to one end of the top of the vertical rod 21. A shock-absorbing ring 23 is glued to the outer wall of the filter layer 22, and the outer wall of the shock-absorbing ring 23 fits the inner wall of the filter cartridge 17. A discharge pipe 24 is welded to the bottom of the filter cartridge 17, and a feed pipe 25 is welded to the bottom of the screening barrel 1, and the other end of the feed pipe 25 extends To the first treatment box 2, the other end of the discharge pipe 24 extends into the feed pipe 25, the sealing block 14 is located outside the sewage outlet 9, the outer contour of the sealing block 14 is the same as the shape of the movable port 11, the screen 6 is hemispherical, the filter layer 22 is composed of gauze and activated carbon, and the gauze is wrapped around the outside of the activated carbon, the top of the filter cartridge 17 is plugged with a top cover 26, the water collecting pipe 4 is a corrugated telescopic pipe, the bottom of the water collecting pipe 4 is screwed with a connecting plate 27, and the top end face of the connecting plate 27 is welded with a tension spring 28, and the top end of the tension spring 28 is welded and fixed to the bottom end face of the guide platform 5; The acidic wastewater generated in the heavy metal mine is discharged into the screening barrel 1, and the acidic wastewater flows into the water collecting pipe 4 under the guidance of the guide platform 5. The slag in the acidic wastewater can be filtered out through the screen 6, and the filtered wastewater flows into the first processing box 2 through the feed pipe 25. The storage capacity of the water collecting pipe 4 can be expanded by utilizing the elasticity of the water collecting pipe 4, and the slider 13 can be driven to move by the electric slide rail 12. Under the traction of the support rod 15, the sealing block 14 can be moved from the movable port 11, and the scraper 8 can be driven to rotate by the first motor 7 to filter out the slag filtered out by the screen 6. The slag is pushed to the sewage outlet 9, and guided by the telescopic hose 16, the slag enters the filter cylinder 17 and falls on the filter layer 22. The slag on the filter layer 22 can be vibrated by running the vibration motor 20 and transmitting by the vertical rod 21, which is beneficial to separate the wastewater adhering to the surface of the slag. The wastewater enters the delivery pipe 25 through the discharge pipe 24 and is transported to the first treatment box 2 by the delivery pipe 25. The shock-absorbing pad 19 and the shock-absorbing ring 23 can achieve a shock-absorbing effect when the vibration motor 20 is running, and the tension spring 28 can play a buffering role when the water collecting pipe 4 is extended. Example

[0024] See also Figure 1-7, based on the embodiment 1, the difference is that a material guide plate 29 is welded to the inner wall of one end of the first processing box 2 and the second processing box 3, a partition 30 is installed on the inner wall of the other end of the first processing box 2 and the second processing box 3 through a rotating shaft, and a plurality of leakage holes 31 are equidistantly opened on the top end surface of the partition 30, and a third motor 52 is fixed on the rotating shaft for connecting the partition 30, and a discharge port 32 is opened on the outer wall of the other end of the first processing box 2 and the second processing box 3, and a moving groove 33 is opened inside the discharge port 32, and a moving port 34 is opened on the top of the moving groove 33, and a sealing plate 35 is slidably installed inside the moving groove 33, and a lifting block 36 is welded on the top of the sealing plate 35, and the other end of the lifting block 36 extends into the moving port 34, a material extraction pump 37 is screwed on one side of the first processing box 2, and a feeding pipe 38 is plugged into the output end of the material extraction pump 37, and the other end of the feeding pipe 38 is plugged and connected to the second processing box 3, and a filter screen is screwed on the inner wall of one side of the first processing box 2 54, and the filter screen 54 is sleeved on the outside of the material extraction pump 37, a pair of slides 39 are welded on the top of the first processing box 2 and the second processing box 3, and a moving seat 40 is clamped between each pair of slides 39, both ends of the moving seat 40 are screwed with electric drive wheels 41, and the electric drive wheels 41 extend to the inside of the moving seat 40, the bottom center of the moving seat 40 is screwed with an electric lifting rod 42, and the telescopic end of the electric lifting rod 42 is screwed with a connecting frame 43, and the connecting frame 43 is plugged with A linkage rod 44 is provided, and transmission rods 45 are welded to both ends of the linkage rod 44. A plurality of stirring plates 46 are welded to the outer wall of the transmission rod 45 at equal intervals. A first gear 47 is welded to one end of the linkage rod 44. A driving groove 48 is provided on the bottom end surface of the movable seat 40. A second motor 49 is screwed inside the driving groove 48. A second gear 50 is fixed to the output end of the second motor 49. A belt 51 is sleeved on the second gear 50. The bottom of the belt 51 is sleeved on the first gear 47. By adding a neutralizer into the first treatment box 2 and the second treatment box 3 and adjusting the pH value, the heavy metal ions are precipitated into hydroxides. The second motor 49 is started by the controller 53, so that the second gear 50 drives the belt 51 to transmit. Under the traction of the belt 51, the first gear 47 rotates synchronously. The rotation of the first gear 47 drives the transmission rod 45 to rotate through the linkage rod 44. The stirring plate 46 can stir the wastewater, which is conducive to the full mixing of the neutralizer and the wastewater. The controller 53 drives the electric drive wheel 41 to enable the movable seat 4 0 moves on the slide 39 to change the mixing and stirring position. After the mixing is completed, the wastewater is left to stand, and the partition 30 is driven to rotate by the third motor 52. The sediment will roll down to the bottom of the box along the guide plate 29, and the partition 30 is closed. The water in the first treatment box 2 can be pumped into the second treatment box 3 for secondary treatment by the suction pump 37 and the feeding pipe 38 to improve the treatment effect. After the liquid in the box is drained, the lifting block 36 is lifted in the moving port 34, so that the sealing plate 35 can be lifted, thereby facilitating the removal of the sediment from the discharge port 32.

[0025] The vibration motor 20, tension spring 28, suction pump 37, electric drive wheel 41, electric lifting rod 42 and controller 53 in the present invention are all existing mature technologies, so they are not described in detail. The controller 53 is used to control the operation of the electric drive equipment in the device. When in use, the acidic wastewater generated in the heavy metal mine is discharged into the screening barrel 1. The acidic wastewater will flow into the water collecting pipe 4 under the guidance of the guide platform 5. The slag in the acidic wastewater can be filtered out through the screen 6. The filtered wastewater will flow into the first treatment box 2 through the feed pipe 25. The storage capacity of the water collecting pipe 4 can be expanded by utilizing the elasticity of the water collecting pipe 4. The slide rail 12 drives the slider 13 to move. Under the traction of the support rod 15, the sealing block 14 can be moved from the movable opening 11. The scraper 8 is driven by the first motor 7 to rotate, and the slag filtered out by the screen 6 can be pushed to the sewage outlet 9. The slag is guided by the telescopic hose 16 and enters the filter cylinder 17 and falls on the filter layer 22. The slag on the filter layer 22 can be vibrated by running the vibration motor 20 and using the vertical rod 21 for transmission, which is conducive to separating the wastewater adhered to the surface of the slag. The wastewater enters the delivery pipe 25 through the discharge pipe 24 and is transported to the first treatment box 2 by the delivery pipe 25. The shock absorption The pad 19 and the shock absorbing ring 23 can play a shock absorbing effect when the vibration motor 20 is running. The tension spring 28 can play a buffering role when the water collecting pipe 4 is extended. By adding a neutralizer to the first treatment box 2 and the second treatment box 3, the pH value is adjusted to make the heavy metal ions form hydroxide precipitation. The second motor 49 is started by the controller 53, so that the second gear 50 drives the belt 51 to transmit. Under the traction of the belt 51, the first gear 47 will rotate synchronously. The rotation of the first gear 47 will drive the transmission rod 45 to rotate through the linkage rod 44. The stirring plate 46 can stir the wastewater, which is beneficial to the neutralizer and the wastewater. The water is fully mixed, and the controller 53 drives the electric drive wheel 41 to move the movable seat 40 on the slide 39, which can change the position of the mixing and stirring. After the mixing is completed, the wastewater is left to stand, and the partition 30 is driven to rotate by the third motor 52. The sediment will roll to the bottom of the box along the guide plate 29, and the partition 30 is closed. The suction pump 37 and the feed pipe 38 can be used to pump the water in the first treatment box 2 into the second treatment box 3 for secondary treatment to improve the treatment effect. After the liquid in the box is drained, the lifting block 36 is raised in the moving port 34, which can make the sealing plate 35 rise, thereby facilitating the removal of the sediment from the discharge port 32.

[0026] A method for treating acidic wastewater from heavy metal mines comprises the following steps: Step 1: Wastewater filtration, by discharging the acidic wastewater generated in the heavy metal mine into the screening barrel 1, the acidic wastewater will flow into the water collecting pipe 4 under the guidance of the guide platform 5, and the slag in the acidic wastewater can be filtered out through the screen 6. The filtered wastewater will flow into the first treatment box 2 through the feed pipe 25. The storage capacity of the water collecting pipe 4 can be expanded by utilizing the elasticity of the water collecting pipe 4, and the tension spring 28 can play a buffering role when the water collecting pipe 4 is stretched.

[0027] Step 2: Slag treatment, use the electric slide rail 12 to drive the slider 13 to move, under the traction of the support rod 15, the sealing block 14 can be moved from the movable port 11, and the scraper 8 is driven by the first motor 7 to rotate, so that the slag filtered out by the screen 6 can be pushed to the sewage outlet 9. The slag will enter the filter cylinder 17 and fall on the filter layer 22 through the guidance of the telescopic hose 16. The slag on the filter layer 22 can be vibrated by running the vibration motor 20 and using the vertical rod 21 for transmission, which is beneficial to separate the wastewater adhered to the surface of the slag. The wastewater will enter the delivery pipe 25 through the discharge pipe 24 and be transported to the first processing box 2 by the delivery pipe 25. The shock-absorbing pad 19 and the shock-absorbing ring 23 can achieve a shock-absorbing effect when the vibration motor 20 is running.

[0028] Step three: wastewater treatment, by adding neutralizing agent into the first treatment box 2 and the second treatment box 3, adjusting the pH value, so that the heavy metal ions form hydroxide precipitation, the second motor 49 is started by the controller 53, so that the second gear 50 drives the belt 51 to transmit, under the traction of the belt 51, the first gear 47 will rotate synchronously, and the rotation of the first gear 47 will drive the transmission rod 45 to rotate through the linkage rod 44, and the stirring plate 46 can be used to stir the wastewater, which is conducive to the full mixing of the neutralizer and the wastewater. The controller 53 drives the electric drive wheel 41 to make the movable seat 40 move on the slide 39, and the position of the mixing and stirring can be changed. After the mixing is completed, the wastewater is left to stand, and the third motor 52 is used to drive the partition 30 to rotate, and the sediment will roll down to the bottom of the box along the guide plate 29, and the partition 30 is closed. The pumping pump 37 and the feeding pipe 38 can be used to pump the water in the first treatment box 2 into the second treatment box 3 for secondary treatment, thereby improving the treatment effect.

[0029] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of this template.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation of the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A heavy metal mine acid wastewater treatment device, comprising a screening barrel (1), characterized in that: A first processing box (2) is provided on the outside of one side of the slag barrel (1), and a second processing box (3) is provided on the outside of one side of the first processing box (2). A water collecting pipe (4) is provided on the top of the inner side of the slag barrel (1), and a guide platform (5) is screwed to one end of the top of the water collecting pipe (4), and the outer wall of the guide platform (5) is welded and fixed to the inner wall of the slag barrel (1). A screen (6) is screwed to one end of the bottom of the water collecting pipe (4), and a first motor (7) is screwed to the center of the bottom of the screen (6), and a scraper (8) is fixed to the output end of the first motor (7). The outer wall of the screen (8) is fitted with the inner wall of the screen (6); a sewage outlet (9) is provided on one side of the screen (6); a sewage outlet (9) is welded to the outside of the sewage outlet (9); a movable opening (11) is provided on the outer wall of one side of the sewage outlet (10); an electric slide rail (12) is screwed to the top of the outer wall of the screen (6); a slider (13) is slidably installed inside the electric slide rail (12); a sealing block (14) is inserted into the inside of the sewage outlet pipe (10); a support rod (15) is welded to the outer wall of the slider (13); and the other end of the support rod (15) is connected to the outer wall of the slider (13). The outer wall of the sealing block (14) is welded and fixed, a telescopic hose (16) is sleeved on the sewage pipe (10), a filter cartridge (17) is provided on the other side of the screening barrel (1), and the other end of the telescopic hose (16) extends into the filter cartridge (17), a support platform (18) is welded to the bottom of the inner side of the filter cartridge (17), and a pair of shock-absorbing pads (19) are glued to the top end surface of the support platform (18), a vibration motor (20) is screwed to the top of the shock-absorbing pad (19), and a vertical rod (21) is fixed to the output end of the vibration motor (20), and the filter cartridge ( A filter layer (22) is clamped inside the filter barrel (17), and the bottom of the filter layer (22) is welded and fixed to one end of the top of the vertical rod (21); a shock-absorbing ring (23) is glued to the outer wall of the filter layer (22), and the outer wall of the shock-absorbing ring (23) is in contact with the inner wall of the filter barrel (17); a discharge pipe (24) is welded to the bottom of the filter barrel (17); a feed pipe (25) is welded to the bottom of the screening residue barrel (1), and the other end of the feed pipe (25) extends into the first processing box (2), and the other end of the discharge pipe (24) extends into the feed pipe (25).

2. The heavy metal mine acid wastewater treatment equipment according to claim 1 is characterized by: The sealing block (14) is located outside the sewage outlet (9), the outer contour of the sealing block (14) is the same as the shape of the movable outlet (11), and the screen (6) is hemispherical.

3. The heavy metal mine acid wastewater treatment equipment according to claim 1, characterized in that: The filter layer (22) is composed of gauze and activated carbon, and the gauze is wrapped around the outside of the activated carbon.

4. The heavy metal mine acid wastewater treatment equipment according to claim 1 is characterized by: A top cover (26) is inserted at the top of the filter cartridge (17); the water collecting pipe (4) is a corrugated telescopic pipe; connecting plates (27) are screwed around the bottom of the water collecting pipe (4); a tension spring (28) is welded to the top end surface of the connecting plate (27); and one end of the top of the tension spring (28) is welded and fixed to the bottom end surface of the guide platform (5).

5. The heavy metal mine acid wastewater treatment equipment according to claim 1, characterized in that: A material guide plate (29) is welded to the inner wall of one end of the first processing box (2) and the second processing box (3), and a partition (30) is installed on the inner wall of the other end of the first processing box (2) and the second processing box (3) via a rotating shaft, and a plurality of leakage holes (31) are equidistantly formed on the top end surface of the partition (30), and a third motor (52) is fixed on the rotating shaft used to connect the partition (30).

6. The heavy metal mine acid wastewater treatment equipment according to claim 1, characterized in that: The outer walls of the other ends of the first processing box (2) and the second processing box (3) are each provided with a discharge port (32), a movable groove (33) is provided inside the discharge port (32), and a movable opening (34) is provided at the top of the movable groove (33), a sealing plate (35) is slidably mounted inside the movable groove (33), and a lifting block (36) is welded to the top of the sealing plate (35), and the other end of the lifting block (36) extends into the movable opening (34).

7. The heavy metal mine acid wastewater treatment equipment according to claim 1, characterized in that: A material extraction pump (37) is screwed onto one side of the first processing box (2), and a feed pipe (38) is plugged into the output end of the material extraction pump (37); the other end of the feed pipe (38) is plugged into and communicates with the second processing box (3); a filter screen (54) is screwed onto the inner wall of one side of the first processing box (2), and the filter screen (54) is sleeved onto the outside of the material extraction pump (37).

8. The heavy metal mine acid wastewater treatment equipment according to claim 1, characterized in that: A pair of slides (39) are welded to the top of the first processing box (2) and the second processing box (3), and a movable seat (40) is clamped between each pair of slides (39), electric drive wheels (41) are screwed to both ends of the movable seat (40), and the electric drive wheels (41) extend to the inside of the movable seat (40), an electric lifting rod (42) is screwed to the center of the bottom of the movable seat (40), and a connecting frame (43) is screwed to the telescopic end of the electric lifting rod (42), a linkage rod (44) is inserted into the connecting frame (43), and transmission rods (45) are welded to both ends of the linkage rod (44), and a plurality of stirring plates (46) are welded to the outer wall of the transmission rod (45) at equal intervals.

9. The heavy metal mine acid wastewater treatment equipment according to claim 8, characterized in that: A first gear (47) is welded to one end of the linkage rod (44), a driving groove (48) is provided on the bottom end surface of the movable seat (40), and a second motor (49) is screwed inside the driving groove (48), a second gear (50) is fixed to the output end of the second motor (49), and a belt (51) is sleeved on the second gear (50), and the bottom of the belt (51) is sleeved on the first gear (47).

10. A method for treating acidic wastewater from heavy metal mines, characterized in that: The following steps are involved: Step 1: Wastewater filtration, wherein the acidic wastewater generated in the heavy metal mine is discharged into the slag bucket (1), and the acidic wastewater is guided by the guide platform (5) to flow into the water collecting pipe (4), and the slag in the acidic wastewater can be filtered out through the screen (6). The filtered wastewater flows into the first treatment box (2) through the feed pipe (25). The storage capacity of the water collecting pipe (4) can be expanded by utilizing the elasticity of the water collecting pipe (4), and the tension spring (28) can play a buffering role when the water collecting pipe (4) is extended; Step 2: Slag treatment, using the electric slide rail (12) to drive the slider (13) to move, under the traction of the support rod (15), the sealing block (14) can be moved from the movable opening (11), and the scraper (8) can be driven to rotate by the first motor (7), so that the slag filtered out by the screen (6) can be pushed to the sewage outlet (9), and the slag can enter the filter cylinder (17) and fall on the filter layer (22) through the guidance of the telescopic hose (16). The slag on the filter layer (22) can be vibrated by running the vibration motor (20) and using the vertical rod (21) for transmission, which is conducive to separating the wastewater adhered to the surface of the slag. The wastewater will enter the conveying pipe (25) through the discharge pipe (24) and be transported to the first processing box (2) by the conveying pipe (25). The shock-absorbing pad (19) and the shock-absorbing ring (23) can play a shock-absorbing effect when the vibration motor (20) is running; Step 3: wastewater treatment, by adding a neutralizing agent into the first treatment box (2) and the second treatment box (3), adjusting the pH value, so that the heavy metal ions form hydroxide precipitation, and starting the second motor (49) through the controller (53), so that the second gear (50) drives the belt (51) to transmit, under the traction of the belt (51), the first gear (47) will rotate synchronously, and the rotation of the first gear (47) will drive the transmission rod (45) to rotate through the linkage rod (44), and the stirring plate (46) can be used to stir the wastewater, which is beneficial to The neutralizing agent is fully mixed with the wastewater. The controller (53) drives the electric drive wheel (41) to move the movable seat (40) on the slide (39) to change the mixing and stirring position. After the mixing is completed, the wastewater is left to stand, and the partition (30) is driven to rotate by the third motor (52). The sediment will roll down to the bottom of the box along the guide plate (29). The partition (30) is closed, and the water in the first treatment box (2) can be pumped into the second treatment box (3) by the pumping pump (37) and the feeding pipe (38) for secondary treatment, thereby improving the treatment effect.

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