An acidic wastewater treatment process

Abstract

This invention discloses an acidic wastewater treatment process, specifically including the following steps: Step 1, pH adjustment; Step 2, material preparation; Step 3, material feeding; Step 4, mixing; Step 5, sedimentation and aggregation; Step 6, sediment discharge. This invention relates to the field of wastewater treatment technology. This acidic wastewater treatment process involves introducing neutralized acidic wastewater into a treatment tank, using a dispersing and feeding component to sprinkle coagulants and coagulant aids into the treatment tank, and ensuring rapid mixing of the coagulants and coagulant aids with the wastewater through the cooperation of a drive component and a stirring component. Furthermore, with the setting of a swing component and an output tank, the sediment from the wastewater in the treatment tank is controlled to flow into the output tank. With the setting of a screw feed shaft, a separator, and a conveying pipe, the wastewater and sediment are discharged together into a sedimentation tank for sedimentation. During this process, the effective mixing of the coagulants and coagulant aids with the wastewater is further ensured, effectively improving the solid-liquid separation speed of the wastewater.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an acidic wastewater treatment process. Background Technology

[0002] Acidic wastewater is wastewater with a pH value less than 6, mainly originating from wastewater discharged by enterprises in metallurgy, metal processing, petrochemicals, chemical fibers, and electroplating. When acidic wastewater enters water bodies, it disrupts the natural neutralization process, causing changes in the pH value, affecting the normal growth of aquatic organisms, and reducing the water body's self-purification function. Acidic wastewater seeping into the soil damages its physical and chemical properties, causing soil acidification, which affects the normal growth of crops. Water acidification can also damage ships, bridges, and other water structures.

[0003] In conventional treatment of acidic wastewater, alkalis or alkaline oxides are often used as neutralizing agents. However, the neutralized wastewater usually still contains a large number of suspended particles, which cannot be effectively removed by filtration alone. Coagulants and coagulant aids are often added to the sedimentation tank to make the particles in the wastewater aggregate and become larger, thus accelerating their settling and achieving solid-liquid separation. However, this method cannot guarantee the effective addition of coagulants and coagulant aids. That is, after adding coagulants and coagulant aids, they cannot be quickly mixed with the wastewater, affecting the speed of solid-liquid separation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an acidic wastewater treatment process that solves the problem that conventional coagulants and coagulant aids, when added to wastewater, cannot achieve rapid mixing with the wastewater, thus affecting the solid-liquid separation speed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an acidic wastewater treatment process, specifically comprising the following steps:

[0006] Step 1, pH adjustment: The acidic wastewater is introduced into the pH adjustment tank, sodium hydroxide solution is added, and the pH is adjusted to 8-9 to obtain the treated wastewater;

[0007] Step 2, Material Preparation: Add the coagulant and coagulant aid to the two storage tanks above the treatment tank, respectively;

[0008] Step 3, Feeding: The treated wastewater is introduced into the treatment tank, and the dispersing and feeding component is activated to disperse the coagulant and coagulant aid in the two storage tanks into the treated wastewater;

[0009] Step 4, Mixing: While the dispersing and feeding component is running in Step 3, the drive component is started. The drive component drives the stirring component in the treatment tank to rotate, accelerating the mixing of the coagulant and coagulant aid with the treated wastewater.

[0010] Step 5, Sedimentation and Aggregation: During the operation of the drive component in Step 4, the swing component is driven to operate, and the sediment that appears after adding coagulant and flocculant aid to the treated wastewater in the treatment tank is continuously introduced into the output tank at the bottom of the treatment tank.

[0011] Step 6, Exporting Sediment: During the operation of the drive component, the screw feed shaft in the output tank rotates, and the sediment and wastewater are introduced into the isolation cylinder together. They are then transported to the sedimentation tank through the conveying pipe below the isolation cylinder for sedimentation.

[0012] By adopting the above technical solution, the neutralized acidic wastewater is introduced into the treatment tank. The coagulant and coagulant aid are sprinkled into the treatment tank using the dispersing and feeding component. With the cooperation of the drive component and the stirring component, the coagulant and coagulant aid are ensured to mix rapidly with the wastewater. With the setting of the swing component and the output tank, the sediment of the wastewater in the treatment tank is controlled to flow into the output tank. With the setting of the screw feed shaft, the isolation cylinder and the conveying pipe, the wastewater and sediment are discharged together into the sedimentation tank for sedimentation. During the process, the effective mixing of the coagulant and coagulant aid with the wastewater is further ensured, and the solid-liquid separation speed of the wastewater is effectively improved.

[0013] The present invention is further configured such that: the output slot is opened at the bottom of the inner cavity of the treatment pool; the drive assembly includes a drive motor and two first rotating shafts; the output end of the drive motor is fixedly connected to a second rotating shaft via a coupling; a first pulley is sleeved on the outer surface of the second rotating shaft; two second pulleys are sleeved and fixedly connected to the surface of one first rotating shaft; a third pulley is sleeved and fixedly connected to the surface of the other first rotating shaft; the first pulley and one second pulley are connected by a first belt drive; and the other second pulley and the third pulley are connected by a second belt drive.

[0014] The drive motor is fixedly installed at the bottom of the front of the treatment tank via a connecting frame. One end of the second rotating shaft passes through the treatment tank and is connected to one end of the spiral feeding shaft via a ratchet assembly. One end of each of the two first rotating shafts passes through the treatment tank and is rotatably connected to one side of the inner cavity of the treatment tank.

[0015] By adopting the above technical solution, during the rotation of the drive motor, not only can the spiral feeding shaft be driven to rotate, but also the two first rotating shafts can be driven to rotate, providing power for the rotation of the mixing component. The structure is simple and more convenient to use.

[0016] The present invention is further configured such that: the dispersing and feeding assembly is fixedly installed on the top of the processing tank by an elastic element; the dispersing and feeding assembly includes a feeding plate; the left and right sides of the top of the feeding plate are fixedly connected to the bottom of the storage box by connecting plates; a feeding plate is slidably installed between the feeding plate and the storage box; a feeding motor is fixedly connected to the front of the storage box by a connecting plate; a turntable is fixedly connected to the output end of the feeding motor by a coupling; an eccentric shaft is fixedly installed at the bottom of the turntable; a docking plate is fixedly installed on the front of the feeding plate; and a long groove adapted to the eccentric shaft is opened on the top of the docking plate.

[0017] The top of the feeding plate is provided with a number of storage through holes evenly spaced apart. The bottom of the storage box cavity is provided with a number of discharge holes that are adapted to the storage through holes evenly spaced apart. The bottom of the unloading plate is provided with a number of unloading holes evenly spaced apart. The unloading holes are used in conjunction with the storage through holes and are located on one side of the storage through holes.

[0018] By adopting the above technical solution, with the setting of feeding motor, turntable and eccentric shaft, and in conjunction with docking plate, long trough and feeding plate, the feeding plate moves back and forth between storage box and discharge plate when the feeding motor rotates. With the setting of discharge hole, storage through hole and discharge hole, when the discharge hole and storage through hole are connected, the coagulant or coagulant aid in storage box is transported to storage through hole. When the storage through hole and discharge hole are connected, the coagulant or coagulant aid in storage through hole falls into the wastewater in treatment tank through discharge hole, realizing the dispersion and discharge of coagulant and coagulant aid.

[0019] The invention is further configured such that: the elastic element includes a fixed frame, the fixed frame is fixedly installed on the top of the treatment pool, a connecting column is slidably installed through the top of the fixed frame, a limiting ring is sleeved on the outer surface of the connecting column, the limiting ring is disposed inside the fixed frame, and the limiting ring and the connecting column are fixedly connected by bolts, a buffer spring is sleeved on the outer surface of the connecting column, and the two ends of the buffer spring are fixedly connected to the top of the treatment pool and the bottom of the limiting ring, respectively, and the top of the connecting column is fixedly connected to the bottom of the feeding plate.

[0020] The present invention is further configured such that: the stirring assembly includes three stirring racks, an extension plate is fixedly connected between two adjacent stirring racks, the turntable is sleeved and fixedly installed on the outer surface of the first rotating shaft, a drive plate is fixedly connected to one side of the extension plate, and the drive plate is used in conjunction with the feeding plate.

[0021] The present invention is further configured such that: the ratchet assembly includes a sleeve, the back of the sleeve is fixedly connected to the front end of the spiral feeding shaft, a plurality of extrusion cylinders are fixedly installed at even intervals on the inner surface of the sleeve, one end of the extrusion cylinder is slidably mounted with a first chamfered tooth, and a compression spring is fixedly installed between one end of the first chamfered tooth and the sleeve, one end of the second rotating shaft extends into the interior of the sleeve and contacts the back of the inner cavity of the sleeve, and a plurality of second chamfered teeth adapted to the first chamfered teeth are fixedly installed at even intervals on the outer circumference of the second rotating shaft.

[0022] By adopting the above technical solution, the first rotating shaft drives the mixing frame to rotate, which in turn drives the expansion plate to rotate, accelerating the mixing of the falling coagulant and coagulant aid with the wastewater. With the setting of the drive plate, as the drive plate rotates with the expansion plate, it squeezes the feeding plate, causing the feeding plate to move the connecting column upward. After the drive plate disengages from the feeding plate, the feeding plate moves the connecting column downward, causing the limiting ring to squeeze the buffer spring, making the feeding plate reciprocate up and down in a cyclical vibration. This ensures that the coagulant and coagulant aid stored in the storage box are relatively flat, and that the coagulant and coagulant aid can smoothly enter the storage through hole through the discharge hole.

[0023] The present invention is further configured such that: the swing assembly includes two connecting ropes and two swing plates, the two ends of the connecting ropes are respectively fixedly connected to one side of the top of a swing plate, the outer surface of the first rotating shaft and the front and rear sides of the stirring assembly are both sleeved and fixedly installed with texturing wheels, the connecting ropes are wound around the two horizontally arranged texturing wheels, the two swing plates are rotatably installed at the bottom of the inner cavity of the treatment tank, and the two swing plates are respectively arranged on the left and right sides of the output tank.

[0024] Arc-shaped plates are fixedly installed on both the left and right sides of the bottom of the treatment tank cavity. A counterweight block adapted to the arc-shaped plate is fixedly installed on one side of the swing plate. An elastic waterproof strip is fixedly installed between the bottom of the swing plate and the bottom of the treatment tank cavity.

[0025] By adopting the above technical solution, and utilizing the combination of the texturing wheel and the connecting rope, during the rotation of the first rotating shaft, one end of the connecting rope drives one swing plate to rotate upward and the other swing plate to rotate downward. The sediment on the upward-rotating swing plate is guided into the output tank. By controlling the reverse rotation of the drive motor, the first rotating shaft is reversed, which causes one swing plate to rotate downward and the other swing plate to rotate upward, ensuring that the sediment on the swing plate can effectively fall into the output tank.

[0026] The invention is further configured such that: the isolation cylinder is fixedly installed on the back of the treatment tank, and the back of the treatment tank is provided with a through hole communicating with the isolation cylinder; the through hole is used in conjunction with the spiral feeding shaft; the conveying pipe is connected to the bottom of the isolation cylinder; and the rear end of the spiral feeding shaft is rotatably connected to the back of the inner cavity of the isolation cylinder through a bearing.

[0027] This invention provides a process for treating acidic wastewater. It has the following beneficial effects:

[0028] (1) The present invention introduces neutralized acidic wastewater into a treatment tank, and uses a dispersing feeding component to sprinkle coagulant and coagulant aid into the treatment tank. With the cooperation of the driving component and the stirring component, the coagulant and coagulant aid are ensured to mix rapidly with the wastewater. With the setting of the swing component and the output tank, the sediment of the wastewater in the treatment tank is controlled to flow into the output tank. With the setting of the spiral feeding shaft, the isolation cylinder and the conveying pipe, the wastewater and sediment are discharged together into the sedimentation tank for sedimentation. In the process, the coagulant and coagulant aid are further ensured to mix effectively with the wastewater, and the solid-liquid separation speed of the wastewater is effectively improved.

[0029] (2) In the process of driving the motor to rotate, the present invention can not only drive the spiral feeding shaft to rotate, but also drive the two first rotating shafts to rotate, providing power for the rotation of the stirring assembly. The structure is simple and it is more convenient to use.

[0030] (3) The present invention, by setting up a feeding motor, a turntable and an eccentric shaft, and cooperating with a docking plate, a long groove and a feeding plate, achieves the purpose of the feeding plate moving back and forth between the storage box and the discharge plate when the feeding motor rotates. With the setting of the discharge hole, the storage through hole and the discharge hole, when the discharge hole and the storage through hole are connected, the coagulant or coagulant aid in the storage box is transported to the storage through hole. When the storage through hole and the discharge hole are connected, the coagulant or coagulant aid in the storage through hole falls into the wastewater in the treatment tank through the discharge hole, thereby realizing the dispersion and discharge of the coagulant and coagulant aid.

[0031] (4) The present invention utilizes the first rotating shaft to drive the stirring frame to rotate, which in turn drives the expansion plate to rotate, thereby accelerating the mixing of the falling coagulant and coagulant aid with the wastewater. With the setting of the driving plate, as the driving plate rotates with the expansion plate, it squeezes the feeding plate, causing the feeding plate to drive the connecting column to move upward. After the driving plate disengages from the feeding plate, the feeding plate drives the connecting column to move downward, causing the limiting ring to squeeze the buffer spring, causing the feeding plate to perform up-and-down reciprocating cyclic vibration, thereby ensuring the relative flatness of the coagulant and coagulant stored in the storage box, and ensuring that the coagulant and coagulant aid can smoothly enter the storage through hole through the discharge hole.

[0032] (5) By utilizing the combination of the texturing wheel and the connecting rope, during the rotation of the first rotating shaft, one end of the connecting rope drives one swing plate to rotate upward and the other swing plate to rotate downward. The sediment on the upward-rotating swing plate is introduced into the output tank. By controlling the reverse rotation of the drive motor, the first rotating shaft is reversed, which causes one swing plate to rotate downward and the other swing plate to rotate upward, ensuring that the sediment on the swing plate can effectively fall into the output tank. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the process of the present invention;

[0034] Figure 2 This is a front view of the processing pool structure of the present invention;

[0035] Figure 3 This is a front view of the internal structure of the treatment pool of the present invention;

[0036] Figure 4 This is a left view of the internal structure of the processing pool of the present invention;

[0037] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A;

[0038] Figure 6 This is a schematic diagram of the ratchet assembly of the present invention;

[0039] In the diagram, 1. Processing tank; 2. Storage tank; 3. Dispersing and feeding assembly; 4. Drive assembly; 5. Mixing assembly; 6. Oscillating assembly; 7. Output trough; 8. Spiral feeding shaft; 9. Isolation cylinder; 10. Conveying pipe; 11. Drive motor; 12. First rotating shaft; 13. Second rotating shaft; 14. First pulley; 15. Second pulley; 16. Third pulley; 17. First belt; 18. Second belt; 19. Elastic element; 20. Feeding plate; 21. Feeding plate; 22. Feeding motor; 23. Turntable; 24. Eccentric shaft; 25. Connecting plate; 26. Long groove; 27. Storage through hole; 28. Discharge hole; 29. ​​Feeding hole; 30. Fixing frame; 31. Connecting column; 32. Limiting ring; 33. Buffer spring; 34. Mixing rack; 35. Extension plate; 36. Drive plate; 37. Connecting rope; 38. Swing plate; 39. Texturing wheel; 40. Arc plate; 41. Counterweight; 42. Through hole; 43. Elastic waterproof belt; 44. Ratchet assembly; 45. Sleeve; 46. Extrusion cylinder; 47. First chamfered tooth; 48. Extrusion spring; 49. Second chamfered tooth. Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0041] Please see Figure 1-6 This invention provides a technical solution: an acidic wastewater treatment process, specifically including the following steps:

[0042] Step 1, pH adjustment: The acidic wastewater is introduced into the pH adjustment tank, sodium hydroxide solution is added, and the pH is adjusted to 8-9 to obtain the treated wastewater;

[0043] Step 2, Material Preparation: Add coagulant PAC and coagulant aid PAM to the two storage tanks 2 above treatment tank 1 respectively;

[0044] Step 3, Feeding: The treated wastewater is introduced into the two arc-shaped plates 40 in the treatment tank 1. The feeding motor 22 is started. The feeding motor 22 is electrically connected to an external power source and is controlled by a control switch. The feeding motor 22 drives the turntable 23 to rotate, and the turntable 23 drives the eccentric shaft 24 to rotate. With the cooperation of the long groove 26, the docking plate 25 drives the feeding plate 21 to move back and forth. When the discharge hole 28 and the storage through hole 27 are connected, the coagulant and coagulant aid stored in the two storage boxes 2 fall into the storage through hole 27. When the storage through hole 27 and the discharge hole 29 are connected, the coagulant and coagulant aid in the storage through hole 27 fall into the wastewater in the treatment tank 1 through the discharge hole 29.

[0045] Step 4, Mixing: While the feeding motor 22 is running in Step 3, the drive motor 11 is started. The drive motor 11 is electrically connected to an external power source and is controlled by a control switch. The drive motor 11 drives the second rotating shaft 13 to rotate the first pulley 14. The first pulley 14 drives a second pulley 15 to rotate via the first belt 17. The second pulley 15 drives a first rotating shaft 12 to rotate another second pulley 15. The other second pulley 15 drives a third pulley 16 to rotate via the second belt 18. The third pulley 16 drives another first rotating shaft 12 to rotate. Both first rotating shafts 12 drive the mixing frame 34 to rotate. The mixing frame 34 drives the extension plate 35 to rotate, accelerating the mixing of the coagulant and coagulant aid with the treated wastewater.

[0046] Step 5, Sedimentation and Aggregation: During the rotation of the first rotating shaft 12 in Step 4, the texturing wheel 39 is driven to rotate. The texturing wheel 39 adopts a conventional take-up wheel design, but unlike conventional take-up wheels, friction textures are formed on it to ensure greater friction between the texturing wheel 39 and the connecting rope 37. The texturing wheel 39 tightens one end of the connecting rope 37, causing the connecting rope 37 to drive one swing plate 38 to rotate upward. At this time, the other end of the connecting rope 37 is relaxed, and the other swing plate 38 rotates downward. The sediment on the upward-rotating swing plate 38 is introduced into the output tank 7. The drive motor 11 is controlled to reverse, causing the first rotating shaft 12 to reverse, causing one swing plate 38 to rotate downward and the other swing plate 38 to rotate upward, so that the sediment on the other swing plate 38 is introduced into the output tank 7.

[0047] Step Six: Derivation of Sediment: During the forward rotation of the second rotating shaft 13, the second chamfered tooth 49 rotates, and the second chamfered tooth 49 squeezes the first chamfered tooth 47, causing the first chamfered tooth 47 to drive the sleeve 45 to rotate through the extrusion cylinder 46. The sleeve 45 drives the screw feed shaft 8 to rotate, and the screw feed shaft 8 guides the sediment and wastewater through the output trough 7 and through the through hole 42 into the isolation cylinder 9. The sediment is then transported to the sedimentation tank for sedimentation through the conveying pipe 10 below the isolation cylinder 9. During the reverse rotation of the second rotating shaft 13, the second chamfered tooth 49 rotates, and the second chamfered tooth 49 squeezes the first chamfered tooth 47, causing the first chamfered tooth 47 to slide in the extrusion cylinder 46 and squeeze the extrusion spring 48. The sleeve 45 does not rotate.

[0048] As a preferred embodiment, to ensure that the coagulant and coagulant aid stored in the two storage tanks 2 can effectively fall into the storage through holes 27, the dispersing and feeding assembly 3 is fixedly installed on the top of the treatment tank 1 by an elastic element 19. The elastic element 19 includes a fixing frame 30, which is fixedly installed on the top of the treatment tank 1. A connecting column 31 is slidably installed through the top of the fixing frame 30. A limiting ring 32 is sleeved on the outer surface of the connecting column 31. The limiting ring 32 is located inside the fixing frame 30, and the limiting ring 32 and the connecting column 31 are fixedly connected by bolts. A buffer spring 33 is sleeved on the outer surface of the connecting column 31, and the two ends of the buffer spring 33 are fixedly connected to the top of the treatment tank 1 and the bottom of the limiting ring 32, respectively. The top of the connecting column 31 is fixedly connected to the bottom of the feeding plate 20, and a driving plate 36 is fixedly connected to one side of the extension plate 35. The driving plate 36 is used in conjunction with the feeding plate 20.

[0049] As explained in detail, during the rotation of the extension plate 35, the drive plate 36 is driven to rotate. When the drive plate 36 contacts the feeding plate 20, it squeezes the feeding plate 20, causing the feeding plate 20 to move upward. When the drive plate 36 disengages from the feeding plate 20, the feeding plate 20 drives the connecting column 31 to move downward, causing the limiting ring 32 to squeeze the buffer spring 33, thereby achieving the up-and-down vibration of the feeding plate 20, which in turn achieves the purpose of up-and-down vibration of the storage box 2, so that the coagulant and coagulant aid stored in the storage box 2 can effectively fall into the storage through hole 27.

Claims

1. An acidic wastewater treatment process, characterized in that: Specifically, the following steps are included: Step 1, pH adjustment: The acidic wastewater is introduced into the pH adjustment tank, sodium hydroxide solution is added, and the pH is adjusted to 8-9 to obtain the treated wastewater; Step 2, Material preparation: Add the coagulant and coagulant aid to the two storage tanks (2) above the treatment tank (1); Step 3, Feeding: The treated wastewater is introduced into the treatment tank (1), and the dispersing and feeding component (3) is started to disperse the coagulant and coagulant aid in the two storage tanks (2) into the treated wastewater; Step 4, Mixing: While the dispersing and feeding component (3) is running in step 3, the driving component (4) is started. The driving component (4) drives the stirring component (5) in the treatment tank (1) to rotate, accelerating the mixing of coagulant and coagulant aid with the treated wastewater. Step 5, Sedimentation and Aggregation: During the operation of the drive component (4) in Step 4, the swing component (6) is driven to run, and the sediment that appears after adding coagulant and coagulant aid to the treated wastewater in the treatment tank (1) is continuously introduced into the output tank (7) at the bottom of the treatment tank (1); Step 6, Exporting sediment: During the operation of the drive component (4), the screw feed shaft (8) in the output tank (7) is rotated, and the sediment and wastewater are introduced into the isolation cylinder (9) together, and then transported to the sedimentation tank through the conveying pipe (10) below the isolation cylinder (9) for sedimentation. The output slot (7) is located at the bottom of the inner cavity of the treatment pool (1). The drive assembly (4) includes a drive motor (11) and two first rotating shafts (12). The output end of the drive motor (11) is fixedly connected to a second rotating shaft (13) via a coupling. A first pulley (14) is sleeved on the outer surface of the second rotating shaft (13). Two second pulleys (15) are sleeved and fixedly connected to the surface of one first rotating shaft (12). A third pulley (16) is sleeved and fixedly connected to the surface of the other first rotating shaft (12). The first pulley (14) and one second pulley (15) are connected by a first belt (17). The other second pulley (15) and the third pulley (16) are connected by a second belt (18). The drive motor (11) is fixedly installed at the bottom of the front of the treatment tank (1) by a connecting frame. One end of the second rotating shaft (13) passes through the treatment tank (1) and is connected to one end of the spiral feeding shaft (8) through the ratchet assembly (44). One end of each of the two first rotating shafts (12) passes through the treatment tank (1) and is rotatably connected to one side of the inner cavity of the treatment tank (1). The dispersing assembly (3) is fixedly installed on the top of the processing tank (1) by an elastic element (19). The elastic element (19) includes a fixed frame (30). The fixed frame (30) is fixedly installed on the top of the processing tank (1). A connecting column (31) is slidably installed through the top of the fixed frame (30). A limiting ring (32) is sleeved on the outer surface of the connecting column (31). The limiting ring (32) is located inside the fixed frame (30). The limiting ring (32) and the connecting column (31) are fixedly connected by bolts. A buffer spring (33) is sleeved on the outer surface of the connecting column (31). The two ends of the buffer spring (33) are fixedly connected to the top of the processing tank (1) and the bottom of the limiting ring (32) respectively. The top of the connecting column (31) is fixedly connected to the bottom of the feeding plate (20). The stirring assembly (5) includes three stirring racks (34), and an extension plate (35) is fixedly connected between two adjacent stirring racks (34). The stirring racks (34) are sleeved and fixedly installed on the outer surface of the first rotating shaft (12). A drive plate (36) is fixedly connected to one side of the extension plate (35). The drive plate (36) is used in conjunction with the feeding plate (20). The swing assembly (6) includes two connecting ropes (37) and two swing plates (38). The two ends of the connecting ropes (37) are fixedly connected to one side of the top of a swing plate (38). The outer surface of the first rotating shaft (12) and the front and rear sides of the stirring assembly (5) are fitted with and fixedly installed with texturing wheels (39). The connecting ropes (37) are wound around the two horizontally arranged texturing wheels (39). The two swing plates (38) are rotatably installed at the bottom of the inner cavity of the treatment tank (1), and the two swing plates (38) are respectively arranged on the left and right sides of the output tank (7). Arc-shaped plates (40) are fixedly installed on both the left and right sides of the bottom of the inner cavity of the treatment pool (1). A counterweight (41) that matches the arc-shaped plate (40) is fixedly installed on one side of the swing plate (38). An elastic waterproof strip (43) is fixedly installed between the bottom of the swing plate (38) and the bottom of the inner cavity of the treatment pool (1).

2. The acidic wastewater treatment process according to claim 1, characterized in that: The dispersing assembly (3) includes a feeding plate (20). The top left and right sides of the feeding plate (20) are fixedly connected to the bottom of the storage box (2) through connecting plates. A feeding plate (21) is slidably installed between the feeding plate (20) and the storage box (2). A feeding motor (22) is fixedly connected to the front of the storage box (2) through a connecting plate. A turntable (23) is fixedly connected to the output end of the feeding motor (22) through a coupling. An eccentric shaft (24) is fixedly installed at the bottom of the turntable (23). A docking plate (25) is fixedly installed on the front of the feeding plate (21), and a long groove (26) adapted to the eccentric shaft (24) is opened on the top of the docking plate (25). The top of the feeding plate (21) is provided with a number of storage through holes (27) evenly spaced apart. The bottom of the inner cavity of the storage box (2) is provided with a number of discharge holes (28) that are adapted to the storage through holes (27) evenly spaced apart. The bottom of the unloading plate (20) is provided with a number of unloading holes (29) evenly spaced apart. The unloading holes (29) are used in conjunction with the storage through holes (27), and the unloading holes (29) are located on one side of the storage through holes (27).

3. The acidic wastewater treatment process according to claim 1, characterized in that: The ratchet assembly (44) includes a sleeve (45), on the inner surface of the sleeve (45) a plurality of compression cylinders (46) are fixedly installed at even intervals. One end of the compression cylinder (46) is slidably mounted with a first chamfered tooth (47), and a compression spring (48) is fixedly installed between one end of the first chamfered tooth (47) and the sleeve (45). One end of the second rotating shaft (13) extends into the interior of the sleeve (45), and a plurality of second chamfered teeth (49) that are adapted to the first chamfered tooth (47) are fixedly installed at even intervals on the outer periphery of the second rotating shaft (13).

4. The acidic wastewater treatment process according to claim 1, characterized in that: The isolation cylinder (9) is fixedly installed on the back of the treatment tank (1), and the back of the treatment tank (1) is provided with a through hole (42) communicating with the isolation cylinder (9). The through hole (42) is used in conjunction with the screw feed shaft (8). The conveying pipe (10) is connected to the bottom of the isolation cylinder (9), and the rear end of the screw feed shaft (8) is rotatably connected to the back of the inner cavity of the isolation cylinder (9) through a bearing.

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