Flocculation, purification and recovery all-in-one machine for electroplating wastewater

Abstract

The invention belongs to the technical field of wastewater filtration, and relates to a flocculation, purification and recovery all-in-one machine for electroplating wastewater, the flocculation, purification and recovery all-in-one machine comprises a bottom frame, a treatment barrel, a sealing cover, a liquid injection pipe and an agent feeding pipe, the treatment barrel is connected to the middle of the upper part of the bottom frame, the top of the treatment barrel is connected with the sealing cover, and a discharge port is formed in the eccentric position of the bottom of the treatment barrel; a liquid injection pipe and an agent feeding pipe are connected to the sealing cover and both communicate with the interior of the treatment barrel. After harmful substances in wastewater are flocculated, the separation barrel with precipitates can be rotated to the position below the filter pressing plate, then the filter pressing plate can be controlled to move downwards to extrude the precipitates, water doped in the precipitates is extruded out, and therefore the effect that the precipitates are subjected to filter pressing treatment after flocculation can be achieved; the subsequent filter pressing treatment is not needed, the operation is more convenient, and the efficiency is higher.

Description

Technical Field

[0001] The present invention belongs to the technical field of wastewater filtration and relates to a flocculation purification and recovery integrated machine for electroplating wastewater. Background Art

[0002] During the production process of the electroplating industry, a large amount of wastewater containing heavy metal ions and organic pollutants is generated. If these wastewaters are directly discharged without treatment, it will cause serious pollution to the environment and threaten the water ecosystem and human health. Heavy metal ions are not easily degraded and will gradually accumulate in the environment, affecting soil quality and groundwater safety. Therefore, it is necessary to purify electroplating wastewater.

[0003] After retrieval, the patent with the publication number CN215559491U discloses a metal wastewater treatment and recovery device, including an acid-base tank and a flocculation tank. One side of the top of the acid-base tank is equipped with a wastewater pipe, the other side of the top of the acid-base tank is equipped with an acid-base liquid pipe, the front surface of the acid-base tank is equipped with a pH meter, a detection block is installed inside the acid-base tank, a solenoid valve is installed at the bottom of the acid-base tank, the solenoid valve is installed at the bottom of the flocculation tank, a stirring motor is installed at the bottom of the flocculation tank, a rotating shaft is installed at the output end of the stirring motor, stirring rods are installed on the outer side of the rotating shaft, a filter screen is installed obliquely below the inside of the flocculation tank, a flocculation pipe is installed on the outer side of the flocculation tank, a transfer tank is installed on the other side of the flocculation tank, and a dehydration tank is installed on the outer side of the transfer tank.

[0004] After the above patent is purified, a large amount of supernatant will be doped in the precipitate, and the supernatant will also be discharged together with the precipitate during the discharge process of the precipitate, resulting in a high water content of the recovered precipitate, and subsequent dehydration treatment is still required, which is more cumbersome to operate and has a low processing efficiency. Summary of the Invention

[0005] In view of this, the present invention provides a flocculation purification and recovery integrated machine for electroplating wastewater.

[0006] The technical solution is as follows: A flocculation purification and recycling integrated machine for electroplating wastewater, which includes a chassis, a treatment cylinder body, a cover, a liquid injection pipe and a dosing pipe. In the middle of the upper part of the chassis is connected with the treatment cylinder body. The top of the treatment cylinder body is connected with a cover. An outlet is opened at an eccentric position at the bottom of the treatment cylinder body. The cover is connected with a liquid injection pipe and a dosing pipe, and both the liquid injection pipe and the dosing pipe are communicated with the inside of the treatment cylinder body. It further includes a discharge frame, a liquid outlet pipe, a drain pipe, a separation mechanism and a filter press mechanism. The lower part outside the treatment cylinder body is connected with a discharge frame. A plurality of liquid outlet pipes are uniformly spaced and communicated with the lower part outside the treatment cylinder body, and the ends of the liquid outlet pipes face the discharge frame. The bottom of the discharge frame is communicated with a drain pipe. A separation mechanism for separating waste liquid and harmful substances is provided on the treatment cylinder body, and a filter press mechanism for filter pressing the precipitate is provided on the cover. The filter press mechanism includes a lead screw motor and a filter press plate. The lead screw motor is installed on the cover, and the bottom end of the lead screw of the lead screw motor is installed with a filter press plate, and the filter press plate is located inside the treatment cylinder body.

[0007] Furthermore, the separation mechanism includes an upper connecting frame, a lower connecting frame, a separation cylinder body, a connecting cylinder body and a driving component. The upper part inside the treatment cylinder body is rotatably connected with an upper connecting frame, and the lower part inside the treatment cylinder body is rotatably connected with a lower connecting frame. A plurality of separation cylinder bodies are evenly spaced and connected circumferentially between the upper connecting frame and the lower connecting frame. The separation cylinder body can rotate to be directly below the filter press plate when rotating. A connecting cylinder body is rotatably connected between the middle parts of the upper connecting frame and the lower connecting frame. The top of the connecting cylinder body is connected in the middle with the cover, and the bottom of the connecting cylinder body is connected in the middle with the bottom of the treatment cylinder body. A driving component is provided on the treatment cylinder body, and the driving component is used to drive the lower connecting frame to rotate.

[0008] Furthermore, a plurality of drainage holes are evenly spaced and opened at the lower part of the separation cylinder body.

[0009] Furthermore, the driving component includes a driving motor, a driving gear and an internal gear ring. The driving motor is installed at the bottom of the treatment cylinder body, the output shaft of the driving motor is connected with a driving gear, and an internal gear ring is connected in the middle of the lower connecting frame. The driving gear meshes with the internal gear ring.

[0010] Furthermore, it further includes a blocking mechanism. The blocking mechanism includes a fixed outer cylinder, a movable outer cylinder and a convex shaft. The middle part outside the connecting cylinder body is connected with a fixed outer cylinder. A movable outer cylinder is slidably connected to the separation cylinder body, and a convex shaft is connected to the movable outer cylinder. A guide groove is opened on the outside of the fixed outer cylinder, and the convex shaft is located in the guide groove.

[0011] Further, it also includes an air injection mechanism, which includes an exhaust disc, an air pump, and an injection pipe. The air pump is installed inside the chassis, and the exhaust disc is installed at the bottom inside the treatment cylinder body. The exhaust disc is located below the liquid injection pipe and the dosing pipe, and an injection pipe is connected between the exhaust disc and the air outlet end of the air pump.

[0012] Further, it also includes a ventilation pipe, which is connected to the cover. Both ends of the ventilation pipe extend into the treatment cylinder body. One end of the ventilation pipe is located above the exhaust disc, and the other end of the ventilation pipe is located above the discharge port.

[0013] Further, it also includes a suction pipe, which is connected to the treatment cylinder body.

[0014] The beneficial effects are as follows: 1. After flocculating and treating the harmful substances in the wastewater, the present invention can rotate the separation cylinder with precipitates below the filter pressing plate, and then the filter pressing plate can be controlled to move downward to squeeze the precipitates, squeezing out the water mixed in the precipitates, so as to achieve the effect of filter pressing the precipitates after flocculation, without the need for subsequent filter pressing treatment, which is more convenient and has higher efficiency during operation.

[0015] 2. After adding the flocculant and wastewater, the present invention can inject air into the liquid material, so that the gas forms bubbles and circulates in the liquid, squeezing the flocculant and wastewater, enabling the flocculant and wastewater to react and mix together faster, assisting in the mixing treatment of the wastewater and the flocculant. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structure diagram of the present invention.

[0017] Figure 2 It is a sectional view of the present invention.

[0018] Figure 3 It is a top view of the present invention.

[0019] Figure 4 It is a structure diagram of the separation mechanism and the filter pressing mechanism of the present invention.

[0020] Figure 5 It is a first structure diagram of the barrier mechanism of the present invention.

[0021] Figure 6 It is a second structure diagram of the barrier mechanism of the present invention.

[0022] Figure 7 It is a third structure diagram of the barrier mechanism of the present invention.

[0023] Figure 8 It is a structure diagram of the air injection mechanism of the present invention.

[0024] Figure 9 It is a schematic diagram of the structure of the ventilation pipe, the sealing cover and the processing cylinder of the present invention.

[0025] Figure 10 It is a schematic diagram of the structure of the treatment cylinder and the vent pipe separated after the cylinder is cut open.

[0026] Figure 11 It is a schematic diagram of the structure of the processing cylinder and the exhaust pipe of the present invention.

[0027] Among them, the above-mentioned drawings include the following drawing marks: 1: base frame, 2: processing cylinder, 21: sealing cover, 22: discharge port, 3: liquid injection pipe, 4: dosing pipe, 5: discharge frame, 6: liquid outlet pipe, 7: liquid discharge pipe, 81: upper connecting frame, 82: driving motor, 83: driving gear, 84: lower connecting frame, 85: inner gear ring, 86: separation cylinder, 87: connecting cylinder, 91: screw motor, 92: filter press plate, 101: fixed outer cylinder, 102: movable outer cylinder, 103: guide groove, 104: cam shaft, 111: exhaust plate, 112: air pump, 113: air injection pipe, 12: ventilation pipe, 13: exhaust pipe. DETAILED DESCRIPTION

[0028] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0029] A flocculation purification and recycling machine for electroplating wastewater, such as Figures 1-4 As shown, it includes a base frame 1, a treatment cylinder 2, a sealing cover 21, a liquid injection pipe 3, a dosing pipe 4, a discharge frame 5, a liquid outlet pipe 6, a discharge pipe 7, a separation mechanism and a filter press mechanism. The treatment cylinder 2 is connected to the middle of the upper part of the base frame 1, the top of the treatment cylinder 2 is connected to the sealing cover 21, and a discharge port 22 is opened at an eccentric position at the bottom of the treatment cylinder 2. The left side of the sealing cover 21 is connected to the liquid injection pipe 3 and the dosing pipe 4, and the liquid injection pipe 3 and the dosing pipe 4 are both connected to the inside of the treatment cylinder 2. The lower outer part of the treatment cylinder 2 is connected to the discharge frame 5, and the lower outer part of the treatment cylinder 2 is evenly spaced and connected to a plurality of liquid outlet pipes 6, the end of the liquid outlet pipe 6 faces the discharge frame 5, and the discharge pipe 7 is connected to the right side of the bottom of the discharge frame 5. The treatment cylinder 2 is provided with a separation mechanism for separating waste liquid and harmful substances, and the sealing cover 21 is provided with a filter press mechanism for filter press treatment of precipitates.

[0030] like Figures 2-4As shown, the separation mechanism includes an upper connecting frame 81, a lower connecting frame 84, a separation cylinder body 86, a connecting cylinder body 87 and a driving assembly. An upper connecting frame 81 is rotatably connected to the upper part inside the treatment cylinder body 2, and a lower connecting frame 84 is rotatably connected to the lower part inside the treatment cylinder body 2. A plurality of separation cylinder bodies 86 are evenly spaced along the circumferential direction between the upper connecting frame 81 and the lower connecting frame 84. The separation cylinder body 86 is used for sediment separation treatment of wastewater. A connecting cylinder body 87 is rotatably connected between the middle parts of the upper connecting frame 81 and the lower connecting frame 84. The top of the connecting cylinder body 87 is connected to the middle of the cover 21, and the bottom of the connecting cylinder body 87 is connected to the middle of the bottom of the treatment cylinder body 2. A driving assembly is provided on the treatment cylinder body 2, and the driving assembly is used to drive the lower connecting frame 84 to rotate. A plurality of drain holes are evenly spaced and opened at the lower part of the separation cylinder body 86.

[0031] As Figures 2-4 shown, the driving assembly includes a driving motor 82, a driving gear 83 and an internal gear ring 85. A driving motor 82 is installed at the bottom of the treatment cylinder body 2. A driving gear 83 is connected to the output shaft of the driving motor 82. An internal gear ring 85 is connected to the middle of the lower connecting frame 84. The driving gear 83 meshes with the internal gear ring 85. By the operation of the driving motor 82 and the transmission of the driving gear 83 and the internal gear ring 85, the lower connecting frame 84 can be driven to rotate.

[0032] As Figure 4 shown, the pressure filtration mechanism includes a lead screw motor 91 and a pressure filtration plate 92. A lead screw motor 91 is installed on the right side of the cover 21. The bottom end of the lead screw of the lead screw motor 91 is installed with a pressure filtration plate 92. The pressure filtration plate 92 is located inside the treatment cylinder body 2. When the separation cylinder body 86 rotates, it can rotate to directly below the pressure filtration plate 92. At this time, when the pressure filtration plate 92 moves down, the sediment in the separation cylinder body 86 can be pressure-filtered.

[0033] When it is necessary to carry out flocculation purification treatment on electroplating wastewater, this device can be used. When in use, first inject the wastewater into the separation cylinder 86 inside the treatment cylinder body 2 through the liquid injection pipe 3, and then inject the flocculant into the separation cylinder 86 inside the treatment cylinder body 2 through the dosing pipe 4. After injecting a certain amount of electroplating wastewater and flocculant into a separation cylinder 86, the driving motor 82 can be controlled to operate. When the driving motor 82 operates, the lower connecting frame 84 rotates driven by the transmission between the driving gear 83 and the internal gear ring 85. When the lower connecting frame 84 rotates, it drives the separation cylinder 86 and the upper connecting frame 81 to rotate, so as to replace the separation cylinder 86 aligned with the liquid injection pipe 3 and the dosing pipe 4. After the operation is completed, wastewater and flocculant can be continuously input. Inside the separation cylinder 86 with the added wastewater and flocculant, the wastewater and the flocculant react with each other to flocculate the harmful substances in the wastewater. The flocculated substances sink to the lower part inside the separation cylinder 86, while the wastewater will be discharged into the treatment cylinder body 2 through the drain holes, and then discharged into the discharge frame 5 through the liquid outlet pipe 6, and finally discharged through the drain pipe 7. When the separation cylinder 86 with sediment rotates below the filter plate 92, the screw motor 91 can be controlled to operate to drive the filter plate 92 to move downward. When the filter plate 92 moves downward, it can carry out filter pressing treatment on the sediment. After the filter pressing, the separation cylinder 86 continues to rotate and can rotate to the discharge port 22. At this time, the sediment will be discharged through the discharge port 22. In this way, this device can be used to carry out flocculation purification treatment on electroplating wastewater, and at the same time, filter pressing treatment can be carried out on the sediment during the treatment, without the need for subsequent filter pressing treatment, which is more convenient and has higher efficiency during operation. The sediment described in this embodiment is obtained after the flocculated substances precipitate.

[0034] As Figures 5-7 shown, it further includes a blocking mechanism. The blocking mechanism includes a fixed outer cylinder 101, a movable outer cylinder 102 and a convex shaft 104. The middle part of the outer side of the connecting cylinder 87 is connected with a fixed outer cylinder 101. A movable outer cylinder 102 is slidably connected to the separation cylinder 86. The movable outer cylinder 102 can slide up and down on the outer side of the separation cylinder 86. When the movable outer cylinder 102 is sleeved on the lower part of the outer side of the separation cylinder 86, it can block the drain holes. A convex shaft 104 is connected to the movable outer cylinder 102. A guide groove 103 is opened on the outer side of the fixed outer cylinder 101. The convex shaft 104 is located in the guide groove 103, so that the convex shaft 104 will move up and down along the guide groove 103 when rotating.

[0035] The movable outer cylinder 102 on the left is located below the separation cylinder body 86, so as to be able to block the drain hole, so that after the liquid injection pipe 3 and the dosing pipe 4 inject wastewater and flocculant, they can be blocked by the movable outer cylinder 102, avoiding the direct discharge of wastewater through the drain hole. Subsequently, the wastewater and the flocculant can react and precipitate in the separation cylinder body 86. When the separation cylinder body 86 rotates, it will drive the movable outer cylinder 102 to rotate together. When the movable outer cylinder 102 rotates, it can drive the convex shaft 104 to move. When the convex shaft 104 moves, it will move upward along the guide groove 103. When the convex shaft 104 moves upward, it will drive the movable outer cylinder 102 to move upward together. After the movable outer cylinder 102 moves upward, it no longer blocks the drain hole. At this time, the water can be discharged through the drain hole. Subsequently, when the separation cylinder body 86 rotates to below the filter pressing plate 92, the filter pressing process can also be carried out normally. In this way, the effect of blocking the drain hole and avoiding the direct outflow of wastewater can be achieved.

[0036] As Figure 8 shown, it further includes an air injection mechanism. The air injection mechanism includes an exhaust disk 111, an air pump 112 and an air injection pipe 113. The air pump 112 is installed on the left side inside the chassis 1, and the exhaust disk 111 is installed at the bottom left side inside the treatment cylinder body 2. The exhaust disk 111 is located below the liquid injection pipe 3 and the dosing pipe 4. The separation cylinder body 86 can rotate to above the exhaust disk 111. A communication air injection pipe 113 is connected between the exhaust disk 111 and the air outlet end of the air pump 112, so that when the air pump 112 operates, it can inject air into the exhaust disk 111 through the air injection pipe 113.

[0037] When adding the flocculant and wastewater into the separation cylinder body 86, the air pump 112 can be controlled to operate to inject air to the exhaust disk 111 through the air injection pipe 113, so that the exhaust disk 111 discharges the gas into the separation cylinder body 86. At this time, since there is liquid in the separation cylinder body 86, the gas will form bubbles when injected into the separation cylinder body 86. The bubbles will impact the liquid in the separation cylinder body 86, enabling the wastewater and the flocculant to be mixed together faster, and assisting in the mixing treatment of the wastewater and the flocculant.

[0038] As Figure 9 and Figure 10As shown in the figure, it further includes a vent pipe 12. The vent pipe 12 is connected to the cover 21. Both ends of the vent pipe 12 extend into the treatment cylinder body 2. One end of the vent pipe 12 is located above the exhaust disc 111, and the other end of the vent pipe 12 is located above the discharge port 22. During the process of the separation cylinder body 86 performing sedimentation separation on the wastewater, one of the separation cylinder bodies 86 is in a state of adding liquid above the exhaust disc 111, while the other separation cylinder body 86 is in a state of discharging waste above the discharge port 22. The gas discharged from the exhaust disc 111 enters the separation cylinder body 86, which can stir the wastewater and the flocculant, causing the wastewater and the flocculant to mix. Then, the gas continues to float and will enter the separation cylinder body 86 aligned with the discharge port 22 through the vent pipe 12 and finally be discharged through the discharge port 22. During this process, the gas will squeeze the sediment in the separation cylinder body 86 to assist in discharging the sediment.

[0039] As Figure 11 shown in the figure, it further includes an extraction pipe 13. The extraction pipe 13 is communicated with the treatment cylinder body 2. By connecting an air extractor to the extraction pipe 13, the inside of the treatment cylinder body 2 can be pumped into a negative pressure state, enabling the separated and filtered water to better pass through the liquid outlet pipe 6 and be discharged.

[0040] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A flocculation purification and recovery integrated machine for electroplating wastewater, comprising a chassis (1), a treatment cylinder body (2), a cover (21), a liquid injection pipe (3) and a dosing pipe (4). The middle of the upper part of the chassis (1) is connected with the treatment cylinder body (2), the top of the treatment cylinder body (2) is connected with the cover (21), an outlet (22) is arranged at an eccentric position at the bottom of the treatment cylinder body (2), the cover (21) is connected with the liquid injection pipe (3) and the dosing pipe (4), and both the liquid injection pipe (3) and the dosing pipe (4) are communicated with the inside of the treatment cylinder body (2). It is characterized in that: It further includes a discharge frame (5), a liquid outlet pipe (6), a drain pipe (7), a separation mechanism and a pressure filtration mechanism. The lower part of the outer side of the treatment cylinder body (2) is connected with a discharge frame (5). The lower part of the outer side of the treatment cylinder body (2) is uniformly and spacedly communicated with a plurality of liquid outlet pipes (6). The ends of the liquid outlet pipes (6) face the discharge frame (5). The bottom of the discharge frame (5) is communicated with a drain pipe (7). A separation mechanism for separating waste liquid and harmful substances is provided on the treatment cylinder body (2). A pressure filtration mechanism for pressure-filtering the precipitate is provided on the cover (21). The pressure filtration mechanism includes a lead screw motor (91) and a pressure filter plate (92). The lead screw motor (91) is installed on the cover (21). The bottom end of the lead screw of the lead screw motor (91) is installed with a pressure filter plate (92). The pressure filter plate (92) is located inside the treatment cylinder body (2).

2. The flocculation purification and recycling integrated machine for electroplating wastewater according to claim 1, wherein: The separation mechanism includes an upper connecting frame (81), a lower connecting frame (84), a separation cylinder body (86), a connecting cylinder body (87) and a driving assembly. The upper part inside the treatment cylinder body (2) is rotatably connected with an upper connecting frame (81). The lower part inside the treatment cylinder body (2) is rotatably connected with a lower connecting frame (84). A plurality of separation cylinder bodies (86) are circumferentially and uniformly spacedly connected between the upper connecting frame (81) and the lower connecting frame (84). The separation cylinder body (86) can rotate to be directly below the pressure filter plate (92) when rotating. A connecting cylinder body (87) is rotatably connected between the middle parts of the upper connecting frame (81) and the lower connecting frame (84). The top of the connecting cylinder body (87) is connected to the middle of the cover (21). The bottom of the connecting cylinder body (87) is connected to the middle of the bottom of the treatment cylinder body (2). A driving assembly is provided on the treatment cylinder body (2). The driving assembly is used to drive the lower connecting frame (84) to rotate.

3. A flocculation purification and recovery integrated machine for electroplating wastewater according to claim 2, characterized in that: A plurality of drain holes are uniformly spacedly opened in the lower part of the separation cylinder body (86).

4. A flocculation purification and recycling integrated machine for electroplating wastewater according to claim 2, characterized in that: The driving assembly includes a driving motor (82), a driving gear (83) and an internal gear ring (85). The driving motor (82) is installed at the bottom of the treatment cylinder body (2). The output shaft of the driving motor (82) is connected with a driving gear (83). The internal gear ring (85) is connected to the middle of the lower connecting frame (84). The driving gear (83) meshes with the internal gear ring (85).

5. A flocculation purification and recycling integrated machine for electroplating wastewater according to claim 4, characterized in that: It further includes a blocking mechanism. The blocking mechanism includes a fixed outer cylinder (101), a movable outer cylinder (102) and a convex shaft (104). The middle part of the outer side of the connecting cylinder body (87) is connected with a fixed outer cylinder (101). The movable outer cylinder (102) is slidably connected to the separation cylinder body (86). The convex shaft (104) is connected to the movable outer cylinder (102). A guide groove (103) is opened on the outer side of the fixed outer cylinder (101). The convex shaft (104) is located in the guide groove (103).

6. A flocculation purification and recycling integrated machine for electroplating wastewater according to claim 1, characterized in that: It further includes an air injection mechanism, and the air injection mechanism includes an exhaust disc (111), an air pump (112) and an air injection pipe (113). The air pump (112) is installed inside the chassis (1), and the exhaust disc (111) is installed at the bottom inside the treatment cylinder body (2). The exhaust disc (111) is located below the liquid injection pipe (3) and the chemical dosing pipe (4), and an air injection pipe (113) is communicated between the exhaust disc (111) and the air outlet end of the air pump (112).

7. A flocculation purification and recycling integrated machine for electroplating wastewater according to claim 1, characterized in that: It further includes a ventilation pipe (12), and the ventilation pipe (12) is connected to the cover (21). Both ends of the ventilation pipe (12) extend into the treatment cylinder body (2). One end of the ventilation pipe (12) is located above the exhaust disc (111), and the other end of the ventilation pipe (12) is located above the discharge port (22).

8. A flocculation purification and recycling integrated machine for electroplating wastewater according to claim 1, characterized in that: It further includes an air extraction pipe (13), and the air extraction pipe (13) is communicated with the treatment cylinder body (2).

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