A device for cleaning precipitate in desulfurization wastewater pretreatment

Abstract

The utility model relates to waste water treatment equipment technical field, concretely is a kind of precipitate cleaning device in desulfurization wastewater pretreatment, including sedimentation tank, the opposite two sides of the sedimentation tank top are equipped with water inlet pipe and water outlet pipe respectively, the bottom of the outside one side of the sedimentation tank is equipped with mounting seat, lifting device is equipped on the mounting seat, the one side of the mounting seat is equipped with the drive device one of driving lifting device rotation, the top of the lifting device is equipped with support plate, the bottom side of the one end of support plate away from lifting device is equipped with capture cover one and capture cover two, the top of the one end of support plate away from lifting device is equipped with the drive device two of driving capture cover rotation, capture cover one is connected with support plate bottom side.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment equipment, specifically to a precipitate cleaning device in the pretreatment of desulfurization wastewater. Background Technology

[0002] Desulfurization wastewater is mainly the discharge water from the absorption tower during the wet desulfurization process of boiler flue gas. During the treatment of desulfurization wastewater, flocculants need to be added to make the impurities in the wastewater form flocculation, and then they are precipitated. In the existing sedimentation tanks for desulfurization wastewater, as the sediment accumulates during use, it is necessary to clean the sediment in the sedimentation tank regularly. However, in the existing process, all the water in the sedimentation tank needs to be drained before the sediment in the sedimentation tank is cleaned, which is extremely inconvenient. Utility Model Content

[0003] The technical problem this utility model aims to solve is to overcome the shortcomings of existing technologies and provide a sediment cleaning device for desulfurization wastewater pretreatment. By activating the second drive device, the first collection hood rotates inside the sedimentation tank, ensuring that the front surfaces of the first and second collection hoods are in contact with each other, collecting the sediment in the collection chamber between the first and second collection hoods. A lifting device then raises the first and second collection hoods until they are completely detached from the sedimentation tank. The first drive device then rotates the lifting device again, ensuring that the first and second collection hoods are above the sedimentation tank and rotated above the sediment collection point. The second drive device is then activated again to rotate the first collection hood in the opposite direction, completely discharging the sediment between the first and second collection hoods. The first drive device is then activated again to rotate the lifting device until the first and second collection hoods are above the sedimentation tank. Finally, the lifting device lowers the first and second collection hoods back into the sedimentation tank for sediment collection.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A sediment removal device for desulfurization wastewater pretreatment includes a sedimentation tank. An inlet pipe and an outlet pipe are respectively provided on opposite sides of the top of the sedimentation tank. A mounting base is provided at the bottom of one side of the sedimentation tank. A lifting device is provided on the mounting base. A drive device one for rotating the lifting device is provided on one side of the mounting base. A support plate is provided on the top of the lifting device. A trapping hood one and a trapping hood two are provided on the bottom side of the support plate away from the lifting device. A drive device two for rotating the trapping hood is provided on the top of the support plate away from the lifting device. The trapping hood one is connected to the bottom side of the support plate.

[0005] Preferably, the mounting base is provided with a bearing seat, and the bottom of the lifting device is connected to the bearing seat through a bearing.

[0006] Preferably, the lifting device includes a hydraulic cylinder, a piston rod is provided inside the hydraulic cylinder, a piston is provided at the bottom end of the piston rod, a sealing ring is provided at the top of the hydraulic cylinder, the bottom of the hydraulic cylinder is connected to a bearing seat on the mounting base through a bearing, and a connecting plate is provided at the top of the piston rod.

[0007] Preferably, the drive device includes a servo motor, which is located on one side of the mounting base. A gear is installed at the power output end of the servo motor, and a gear ring that meshes with the gear is installed at the bottom end of the hydraulic cylinder.

[0008] Preferably, the second driving device includes a second servo motor, which is mounted on the top of the support plate at the end away from the lifting device. The end of the support plate away from the lifting device has a through hole. A rotating rod is installed on the power output end of the second servo motor. The rotating rod passes through the through hole on the support plate and is positioned towards the sedimentation tank. The axis of the rotating rod coincides with the axis of the sedimentation tank. The first trapping hood is connected to the rotating rod, and the second trapping hood is connected to the bottom of the support plate.

[0009] Preferably, the first trapping hood includes a vertical filter plate, an arc-shaped horizontal filter plate on one side of the bottom of the first vertical filter plate, an arc-shaped filter plate connected to one side of the first vertical filter plate on the outer edge of the first horizontal filter plate, and the side of the first vertical filter plate away from the arc-shaped filter plate connected to the rotating rod. The second trapping hood includes a second vertical filter plate, an arc-shaped horizontal filter plate on one side of the bottom of the second vertical filter plate, an arc-shaped filter plate connected to one side of the second vertical filter plate on the outer edge of the second horizontal filter plate, the top of the second vertical filter plate connected to the bottom side of the support plate, and the horizontal height of the bottom of the second vertical filter plate being the same as the horizontal height of the bottom of the first vertical filter plate.

[0010] Preferably, the sedimentation tank has a bottom plate at the bottom, which is connected to the bottom of the sedimentation tank by flanges and bolts, and a sealing gasket is provided between the bottom plate and the bottom of the sedimentation tank.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model has a simple structure. By activating the second drive device, the first collection hood is rotated inside the sedimentation tank, ensuring that the front surfaces of the first and second collection hoods are in contact with each other, collecting the sediment in the sedimentation tank into the collection chamber between the first and second collection hoods. The lifting device then raises the first and second collection hoods until they are completely detached from the sedimentation tank. The first drive device then rotates the lifting device to ensure that the first and second collection hoods are above the sedimentation tank and rotated to above the sediment collection point. The second drive device is then activated again to rotate the first collection hood in the opposite direction, completely discharging the sediment between the first and second collection hoods. The first drive device is then activated to rotate the lifting device until the first and second collection hoods are above the sedimentation tank. The lifting device then lowers the first and second collection hoods back into the sedimentation tank for sediment collection.

[0012] 2. The mounting base of this device is equipped with a bearing seat, and the bottom of the lifting device is equipped with a bearing that is compatible with the bearing seat. Therefore, when the driving device drives the lifting device to rotate, it can ensure that the lifting device rotates effectively and carries the collected sediment from the inside of the sedimentation tank to the outside for cleaning.

[0013] 3. When the first and second collection hoods lift the sediment from the sedimentation tank, the first servo motor is started. The power output of the first servo motor drives the gear to rotate. The gear meshes with the gear ring on the bottom side wall of the hydraulic cylinder. When the gear rotates, it can drive the hydraulic cylinder to rotate, which makes it easier to rotate the first and second collection hoods from the top of the sedimentation tank to above the sediment collection point.

[0014] 4. The second collection hood of this device is connected to the bottom of the support plate, and the first collection hood is connected to the rotating rod. The rotating rod is driven to rotate by the power output end of the second servo motor, ensuring that the front of the first collection hood and the front of the second collection hood are in contact, so as to facilitate the collection of sediment inside the sedimentation tank.

[0015] 5. After a long period of desulfurization wastewater treatment, the stubborn sediments attached to the sedimentation tank cannot be effectively collected and filtered by the first and second collection hoods. After the water inside the sedimentation tank is completely drained, the operator can remove the bolts on the flange and remove the bottom plate of the sedimentation tank from the bottom of the sedimentation tank, which makes it easy for the operator to clean the stubborn sediments attached to the sedimentation tank and the bottom plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 Schematic diagram of the operation of trap hood one and trap hood two Figure 1 ; Figure 4 Schematic diagram of the operation of trap hood one and trap hood two Figure 2 .

[0017] In the diagram: 1. Sedimentation tank; 2. Mounting base; 3. Hydraulic cylinder; 4. Piston rod; 5. Support plate; 6. Servo motor one; 7. Gear; 8. Gear ring; 9. Inlet pipe; 10. Outlet pipe; 11. Servo motor two; 12. Rotating rod; 13. Collection hood one; 14. Collection hood two; 15. Vertical filter plate one; 16. Horizontal filter plate one; 17. Arc-shaped filter plate one; 18. Vertical filter plate two; 19. Horizontal filter plate two; 20. Arc-shaped filter plate two; 21. Bottom plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 A precipitate removal device for desulfurization wastewater pretreatment, with the following structure: Figures 1-4 As shown, the system includes a sedimentation tank 1. An inlet pipe 9 and an outlet pipe 10 are respectively provided on opposite sides of the top of the sedimentation tank 1. A mounting base 2 is provided at the bottom of the outer side of the sedimentation tank 1. A lifting device is provided on the mounting base 2. A drive device one for rotating the lifting device is provided on one side of the mounting base 2. A support plate 5 is provided on the top of the lifting device. A trapping hood 13 and a trapping hood 2 14 are provided on the bottom side of the support plate 5 away from the lifting device. A drive device two for rotating the trapping hood is provided on the top of the support plate 5 away from the lifting device. The trapping hood 13 is connected to the bottom side of the support plate 5.

[0020] Desulfurization wastewater enters sedimentation tank 1 through inlet pipe 9. After reacting with flocculant, precipitates are formed in the wastewater and fall to the bottom of sedimentation tank 1. As the precipitates fall, clear water forms at the top of sedimentation tank 1. By continuously introducing desulfurization wastewater and adding flocculant, the clear water at the top of sedimentation tank 1 is discharged through outlet pipe 10. Due to the continuous production of precipitates, the operator can activate drive device two to drive the trap hood 13 and trap hood 2 14 to cooperate. After the surfaces are connected, a collection chamber is formed, concentrating the sediment in sedimentation tank 1 within it. Then, the operator activates the lifting device, which raises collection hood 13 and collection hood 2 14 from sedimentation tank 1. As collection hoods 13 and 2 14 rise, wastewater inside the collection chamber is filtered out, ensuring only sediment remains within the chamber. This continues until collection hoods 13 and 2 14 are completely removed from sedimentation tank 1. The operator then activates drive device 1, which drives the lifting device... Rotate the trap 13 and trap 2 14 180° from above the sedimentation tank 1 to the sediment collection point. Then, restart the drive unit 2 to rotate trap 13 in the opposite direction, moving trap 13 away from trap 2 14. The sediment between trap 13 and trap 2 14 will fall to the sediment collection point. With the assistance of the operator, all the sediment on trap 13 and trap 2 14 is cleaned to the sediment collection point. Then, the backs of trap 13 and trap 2 14 abut against each other. The operator then uses the drive device to rotate the lifting device 180° again, and the first collection hood 13 and the second collection hood 14 are once again positioned above the sedimentation tank 1. The lifting device then lowers the first collection hood 13 and the second collection hood 14 into the sedimentation tank 1, facilitating the collection and cleaning of the sediment inside the sedimentation tank 1 again. This ensures that the sediment inside the sedimentation tank 1 can be collected and cleaned without interrupting wastewater treatment, avoiding the need for manual entry into the sedimentation tank 1 for cleaning, reducing the labor intensity and danger for operators, and ensuring the treatment efficiency of desulfurization wastewater.

[0021] The mounting base 2 is provided with a bearing seat, and the bottom of the lifting device is connected to the bearing seat through a bearing.

[0022] Since the mounting base 2 is equipped with a bearing seat, and the bottom of the lifting device is equipped with a bearing that is compatible with the bearing seat, when the driving device drives the lifting device to rotate, it can ensure that the lifting device rotates effectively and carries the collected sediment from inside the sedimentation tank 1 to the outside for cleaning.

[0023] The lifting device includes a hydraulic cylinder 3, inside which is a piston rod 4. A piston is provided at the bottom end of the piston rod 4. A sealing ring is provided at the top of the hydraulic cylinder 3. The bottom of the hydraulic cylinder 3 is connected to a bearing seat on the mounting base 2 through a bearing. A connecting plate is provided at the top of the piston rod 4.

[0024] A hydraulic oil tank and a hydraulic oil pump connected to the hydraulic oil tank are provided on one side of the sedimentation tank. The upper and lower side walls of the hydraulic cylinder 3 are provided with oil inlet and outlet holes. The hydraulic oil pump is connected to the two oil inlet and outlet holes through oil pipes. The piston rod 4 can be extended or retracted inside the hydraulic cylinder 3 by the control valve, so that the collection hood 13 and collection hood 24 can be raised and lowered by the support plate 5 to remove the collected sediment from the sedimentation tank 1 for collection and treatment.

[0025] The drive device includes a servo motor 6, which is located on one side of the mounting base 2. A gear 7 is installed at the power output end of the servo motor 6, and a gear ring 8 that meshes with the gear 7 is installed at the bottom end of the hydraulic cylinder 3.

[0026] When the first collection hood 13 and the second collection hood 14 remove the sediment from the sedimentation tank 1, the servo motor 16 is started. The power output end of the servo motor 16 drives the gear 7 to rotate. The gear 7 meshes with the gear ring 8 on the bottom side wall of the hydraulic cylinder 3. When the gear 7 rotates, it can drive the hydraulic cylinder 3 to rotate, which makes it easier to rotate the first collection hood 13 and the second collection hood 14 from the top of the sedimentation tank 1 to above the sediment collection point.

[0027] The second driving device includes a second servo motor 11, which is mounted on the top of the support plate 5 away from the lifting device. The support plate 5 has a through hole at the end away from the lifting device. A rotating rod 12 is installed at the power output end of the second servo motor 11. The rotating rod 12 passes through the through hole on the support plate 5 and is positioned towards the sedimentation tank 1. The axis of the rotating rod 12 coincides with the axis of the sedimentation tank 1. The first trapping hood 13 is connected to the rotating rod 12, and the second trapping hood 14 is connected to the bottom of the support plate 5.

[0028] The second trap 14 is connected to the bottom of the support plate 5, and the first trap 13 is connected to the rotating rod 12. The rotating rod 12 is driven to rotate by the power output end of the second servo motor 11, ensuring that the front of the first trap 13 and the front of the second trap 14 are in contact, so as to facilitate the collection of sediment inside the sedimentation tank 1.

[0029] The first trap hood 13 includes a vertical filter plate 15. An arc-shaped horizontal filter plate 16 is provided on one side of the bottom of the vertical filter plate 15. An arc-shaped filter plate 17 connected to one side of the vertical filter plate 15 is provided on the outer edge of the horizontal filter plate 16. The side of the vertical filter plate 15 away from the arc-shaped filter plate 17 is connected to the rotating rod 12. The second trap hood 14 includes a vertical filter plate 18. An arc-shaped horizontal filter plate 19 is provided on one side of the bottom of the vertical filter plate 18. An arc-shaped filter plate 20 connected to one side of the vertical filter plate 18 is provided on the outer edge of the horizontal filter plate 19. The top of the vertical filter plate 18 is connected to the bottom side of the support plate 5. The horizontal height of the bottom of the vertical filter plate 18 is the same as the horizontal height of the bottom of the vertical filter plate 15.

[0030] One side of the vertical filter plate 15 is connected to the rotating rod 12, and the other side of the vertical filter plate 18 abuts against the inner wall of the sedimentation tank 1. The rotating rod 12 drives the vertical filter plate 15 to rotate inside the sedimentation tank 1, ensuring that the sediment inside the sedimentation tank 1 is collected and completely cleaned.

[0031] Example 2 Based on Embodiment 1, the bottom of the sedimentation tank 1 is provided with a bottom plate 21, which is connected to the bottom of the sedimentation tank 1 by flanges and bolts, and a sealing gasket is provided between the bottom plate 21 and the bottom of the sedimentation tank 1.

[0032] After a long period of desulfurization wastewater treatment, the stubborn sediments attached to the inside of sedimentation tank 1 cannot be effectively collected and filtered by collection hood 13 and collection hood 24. After the water inside sedimentation tank 1 is completely drained, the operator can remove the bottom plate 21 of sedimentation tank 1 by unscrewing the bolts on the flange, making it easier for the operator to clean the stubborn sediments attached to the inside of sedimentation tank 1 and the bottom plate 21.

[0033] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations, additions, subtractions, or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A device for cleaning sediment in the pretreatment of desulfurization wastewater, comprising a sedimentation tank (1), wherein an inlet pipe (9) and an outlet pipe (10) are respectively provided on opposite sides of the top of the sedimentation tank (1), characterized in that, The sedimentation tank (1) has a mounting base (2) at the bottom of its outer side. The mounting base (2) is equipped with a lifting device. The mounting base (2) has a drive device (1) for rotating the lifting device on one side. The lifting device has a support plate (5) at the top. The support plate (5) has a trapping hood (13) and a trapping hood (14) at the bottom side away from the lifting device. The support plate (5) has a drive device (2) for rotating the trapping hood at the top side away from the lifting device. The trapping hood (13) is connected to the bottom side of the support plate (5).

2. The precipitate removal device for desulfurization wastewater pretreatment according to claim 1, characterized in that, The mounting base (2) is provided with a bearing seat, and the bottom of the lifting device is connected to the bearing seat through a bearing.

3. The precipitate removal device for desulfurization wastewater pretreatment according to claim 2, characterized in that, The lifting device includes a hydraulic cylinder (3), a piston rod (4) is provided inside the hydraulic cylinder (3), a piston is provided at the bottom end of the piston rod (4), a sealing ring is provided at the top of the hydraulic cylinder (3), the bottom of the hydraulic cylinder (3) is connected to the bearing seat on the mounting base (2) through a bearing, and a connecting plate is provided at the top of the piston rod (4).

4. The precipitate removal device for desulfurization wastewater pretreatment according to claim 3, characterized in that, The drive device includes a servo motor (6), which is located on one side of the mounting base (2). A gear (7) is installed at the power output end of the servo motor (6), and a gear ring (8) that meshes with the gear (7) is installed at the bottom end of the hydraulic cylinder (3).

5. The precipitate removal device for desulfurization wastewater pretreatment according to claim 1, characterized in that, The second driving device includes a second servo motor (11), which is installed on the top of the support plate (5) away from the lifting device. The support plate (5) has a through hole at the end away from the lifting device. A rotating rod (12) is installed on the power output end of the second servo motor (11). The rotating rod (12) passes through the through hole on the support plate (5) and is set towards the sedimentation tank (1). The axis of the rotating rod (12) coincides with the axis of the sedimentation tank (1). The first trap (13) is connected to the rotating rod (12), and the second trap (14) is connected to the bottom of the support plate (5).

6. The precipitate removal device for desulfurization wastewater pretreatment according to claim 5, characterized in that, The first trap (13) includes a vertical filter plate (15), and an arc-shaped horizontal filter plate (16) is provided on one side of the bottom of the vertical filter plate (15). An arc-shaped filter plate (17) is provided on the outer edge of the horizontal filter plate (16) and connected to one side of the vertical filter plate (15). The side of the vertical filter plate (15) away from the arc-shaped filter plate (17) is connected to the rotating rod (12). The second trap (14) includes a vertical filter plate (18), and an arc-shaped horizontal filter plate (19) is provided on one side of the bottom of the vertical filter plate (18). An arc-shaped filter plate (20) is provided on the outer edge of the horizontal filter plate (19) and connected to one side of the vertical filter plate (18). The top of the vertical filter plate (18) is connected to the bottom side of the support plate (5). The horizontal height of the bottom of the vertical filter plate (18) is the same as the horizontal height of the bottom of the vertical filter plate (15).

7. The precipitate removal device for desulfurization wastewater pretreatment according to claim 1, characterized in that, The sedimentation tank (1) is provided with a bottom plate (21), which is connected to the bottom of the sedimentation tank (1) by flanges and bolts, and a sealing gasket is provided between the bottom plate (21) and the bottom of the sedimentation tank (1).

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