Fluorine-containing wastewater treatment equipment

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses fluorine-containing wastewater treatment equipment which comprises a treatment box, a feeding pipe, a discharging pipe, a sealing structure and a stirring structure, the sealing structure is arranged in a cavity of the treatment box and used for collecting waste gas generated in the fluorine wastewater treatment process, and the stirring structure is arranged in the cavity of the treatment box. The sealing structure comprises a partition plate, a baffle and a push cylinder driving the baffle to move. The partition plate is fixed to the inner wall of the treatment box and divides a cavity of the treatment box into an upper space and a lower space, the baffle is arranged on the top side of the partition plate, two feeding ports are formed in the baffle, a gas collecting hood is arranged above one feeding port in a covering mode, and a penetrating port is formed in the top of the partition plate; the baffle is driven by the push cylinder to drive the feeding opening to be aligned with the penetrating opening of the partition plate. According to the utility model, harmful gas can be continuously discharged in the reaction process of fluorine wastewater treatment, so that the risk of overflowing of the harmful gas is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a fluoride-containing wastewater treatment device. Background Technology

[0002] Fluorine pollution refers to environmental pollution caused by fluorine and its compounds. It mainly originates from emissions from aluminum smelting, phosphate rock processing, phosphate fertilizer production, iron and steel smelting, and coal combustion. Fluorine pollution can be removed by adding chemicals to wastewater to cause a reaction that forms a stable precipitate.

[0003] The prior art discloses a fluoride-containing wastewater treatment device (publication number: CN118161890A), including a treatment tank and an inlet pipe. The inlet pipe is connected to the end of the treatment tank. A lifting plate is movably installed in the inner cavity of the treatment tank. Lifting cylinders are installed at both ends of the treatment tank. A connecting rod is connected to the top of the piston rod of the lifting cylinder. The bottom of the connecting rod is connected to the two end surfaces of the lifting plate. Through grooves are equidistantly opened on the surface of the lifting plate. A guide groove is opened in the inner cavity of the lifting plate. A push plate is slidably installed in the inner cavity of the guide groove. A corresponding groove is opened on the surface of the push plate at the position corresponding to the through groove.

[0004] In the existing technology, the feeding window is sealed or opened by pushing the plate to move the cylinder. However, when the plate seals the feeding port, certain harmful gases will be generated during the reaction. The accumulation of harmful gases in the reaction chamber will increase the gas pressure, affecting the reaction between the reagent and the wastewater. At the same time, it will also increase the risk of harmful gas leakage.

[0005] Therefore, we propose a fluoride-containing wastewater treatment device. Utility Model Content

[0006] The purpose of this invention is to provide a fluoride-containing wastewater treatment device that can continuously discharge harmful gases during the reaction process of fluoride wastewater treatment, thereby reducing the risk of harmful gas spillage.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A fluoride-containing wastewater treatment device, comprising:

[0009] The processing box has a feed pipe fixedly installed on its side wall for feeding materials and a discharge pipe fixedly installed on its bottom for discharging materials.

[0010] A sealed structure, installed inside the treatment chamber, is used to collect waste gas generated during the treatment of fluoride wastewater. The sealed structure includes a partition, a baffle, and a pusher cylinder for driving the baffle to move. The partition is fixed to the inner wall of the treatment chamber and divides the chamber into upper and lower spaces. The baffle is located on the top side of the partition and has two feeding ports. A gas collection hood is installed above one of the feeding ports. A through-hole is provided at the top of the partition. The baffle, driven by the pusher cylinder, can align the feeding port with the through-hole of the partition.

[0011] A stirring structure is installed inside the treatment chamber to stir the wastewater.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] 1. In the initial position of this fluoride-containing wastewater treatment equipment, the feeding port without a gas collection hood is aligned with the through-hole of the partition, allowing wastewater and reagents to enter the space below the partition through the through-hole. After addition, the baffle is slid by a push cylinder, causing the gas collection hood to move directly above the through-hole. The generated harmful gases can be discharged through the gas collection pipe at the top of the gas collection hood. The gas collection pipe can be connected to an external harmful gas treatment device, which includes at least a blower and an adsorption box. The adsorption box can be filled with activated carbon or other adsorption materials. The blower's intake port is connected to the gas collection pipe, and the blower's exhaust port is connected to the adsorption box. This ensures that the wastewater and reagents react in a sealed environment while continuously discharging harmful gases during the reaction, reducing the risk of harmful gas spillage.

[0014] 2. This fluoride-containing wastewater treatment equipment uses a motor to drive a stirring rod to rotate. The stirring rod drives a pusher plate and a paddle rod to move in a circular motion, thereby agitating the mixture of wastewater and reagents and improving reaction efficiency. In addition, the spiral pusher plate can push the precipitate to one side, promoting the precipitate to collect and be discharged through the discharge pipe, which facilitates slag discharge. Attached Figure Description

[0015] Figure 1 This is one of the overall perspective views of an embodiment of a fluoride-containing wastewater treatment device according to the present invention;

[0016] Figure 2 This is the second overall perspective view of an embodiment of a fluoride-containing wastewater treatment device according to the present invention;

[0017] Figure 3 This is a partial sectional view of the treatment tank in an embodiment of a fluoride-containing wastewater treatment device of this utility model;

[0018] Figure 4 This is a perspective view of the sealing structure of an embodiment of a fluoride-containing wastewater treatment device according to the present invention;

[0019] Figure 5 This is a bottom perspective view of the baffle plate in an embodiment of a fluoride-containing wastewater treatment device according to this utility model.

[0020] Labeling Explanation: 10. Processing box; 11. Feed pipe; 12. Discharge pipe; 20. Baffle; 21. Deflector; 22. Push cylinder; 23. Feed port; 24. Gas collection hood; 30. Stirring rod; 31. Push plate; 32. Paddle rod. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0022] like Figure 1-5 The diagram shown is a schematic representation of an embodiment of a fluoride-containing wastewater treatment device provided by this utility model:

[0023] A fluoride-containing wastewater treatment device includes: a treatment tank 10, a feed pipe 11 for feeding is fixedly installed on the side wall of the treatment tank 10, and a discharge pipe 12 for discharging is fixedly installed on the bottom of the treatment tank 10.

[0024] Furthermore, there are two feed pipes 11, and the two feed pipes 11 are symmetrically arranged on both sides of the treatment tank 10. The two feed pipes 11 are used to add sewage and chemicals respectively. The chemicals are mainly calcium carbonate solutions used to remove fluoride from sewage. The calcium carbonate reacts with fluoride to form calcium fluoride precipitate, thereby achieving the effect of defluorination. The calcium fluoride precipitate can be discharged through the discharge pipe 12, which will not be described in detail here.

[0025] like Figure 1-3 and Figure 4-5 As shown, a sealed structure is installed inside the cavity of the treatment tank 10 and is used to collect the waste gas generated during the treatment of fluoride wastewater. The sealed structure includes a partition 20, a baffle 21, and a push cylinder 22 for driving the baffle 21 to move. The partition 20 is fixed to the inner wall of the treatment tank 10 and divides the cavity of the treatment tank 10 into upper and lower spaces. The baffle 21 is located on the top side of the partition 20 and has two feeding ports 23. A gas collection hood 24 is installed above one of the feeding ports 23. A through opening is provided at the top of the partition 20. The baffle 21 is driven by the push cylinder 22 to align the feeding port 23 with the through opening of the partition 20.

[0026] A stirring structure is installed in chamber 10 of the treatment tank to stir the sewage.

[0027] The longitudinal section of the partition 20 is U-shaped, and a groove is formed on the top of the partition 20. The through opening is opened on the groove of the partition 20.

[0028] The baffle 21 is a rectangular plate. The width of the baffle 21 is equal to the width of the groove at the top of the partition 20, and the length of the baffle 21 is greater than the length of the through opening at the top of the partition 20.

[0029] The gas collecting hood 24 is funnel-shaped, with the larger end of the gas collecting hood 24 fixed to the top side of the baffle 21, and the smaller end of the gas collecting hood 24 connected to a gas collecting pipe.

[0030] The push cylinder 22 is fixedly installed on one side of the processing box 10. The output shaft of the push cylinder 22 is fixedly connected to the mounting plate, and the mounting plate is fixedly connected to the top surface of the baffle 21.

[0031] In this scheme, considering that harmful gases may be generated during the reaction between the agent and the sewage, it is necessary to seal the mixture of sewage and agent after adding the agent. In the initial position, the feeding port 23 without the gas collection hood 24 is aligned with the through opening of the partition 20, so that the sewage and agent can enter the space below the partition 20 from the through opening. After the addition is completed, the baffle 21 is pushed to slide by the push cylinder 22, so that the gas collection hood 24 moves to the top of the through opening, and the generated harmful gases can be discharged through the gas collection pipe at the top of the gas collection hood 24.

[0032] Furthermore, the gas collection pipe can be connected to an external hazardous gas treatment device. The hazardous gas treatment device includes at least a fan and an adsorption box. The adsorption box can be filled with activated carbon or other adsorption materials. The fan's intake port is connected to the gas collection pipe, and the fan's exhaust port is connected to the adsorption box. This ensures that the wastewater and the reagent react in a sealed environment, while also continuously discharging hazardous gases during the reaction process, reducing the risk of hazardous gas spillage. Of course, to ensure the sealing effect of the baffle 21 on the penetration, an elastic sealing gasket is fixedly provided at the bottom of the baffle 21.

[0033] like Figure 3-4 As shown, the stirring structure includes a stirring rod 30, a pusher plate 31, and several paddle rods 32. The stirring rod 30 is rotatably connected to the processing tank 10 and is located below the partition plate 20. A motor is fixed on the processing tank 10, and the output end of the motor is connected to the stirring rod 30. The pusher plate 31 and the paddle rods 32 are both fixedly connected to the stirring rod 30.

[0034] The motor is fixedly connected to the processing box 10 via a sealing flange. The side wall of the processing box 10 has a shaft hole, through which the output shaft of the motor extends into the cavity of the processing box 10 and is fixedly connected to the stirring rod 30.

[0035] The push plate 31 is a spiral metal plate, and the paddle 32 is cylindrical. Several paddles 32 are equidistantly arranged on the wall of the stirring rod 30, and each paddle 32 is located within the pitch of the push plate 31.

[0036] In this scheme, in order to promote the reaction between the agent and the wastewater, the stirring rod 30 is driven by a motor to rotate. The stirring rod 30 drives the pusher plate 31 and the paddle rod 32 to move in a circular motion, thereby stirring the mixture of wastewater and agent and improving the reaction efficiency. Secondly, the spiral pusher plate 31 can push the precipitate to one side, promote the precipitate to collect and be discharged towards the discharge pipe 12, and facilitate slag discharge.

[0037] Both the motor and the push cylinder 22 need to be connected to the controller via electrical signals. The controller is connected to the power supply. Specific specifications and models are not limited here. The connection method and control method are mature and well-known technologies, and will not be elaborated here.

[0038] The working principle of this utility model is roughly as follows:

[0039] In the initial position, the feeding port 23, which does not have a gas collection hood 24 above, is aligned with the through-hole of the partition 20, so that sewage and chemicals can enter the space below the partition 20 from the through-hole. After the addition is completed, the baffle 21 is pushed to slide by the push cylinder 22, so that the gas collection hood 24 moves to the top of the through-hole. The generated harmful gases can be discharged through the gas collection pipe at the top of the gas collection hood 24. The gas collection pipe can be connected to an external harmful gas treatment device. The harmful gas treatment device includes at least a blower and an adsorption box. The adsorption box can be filled with activated carbon or other adsorption materials. The blower's air intake is connected to the gas collection pipe, and the blower's exhaust port is connected to the adsorption box.

[0040] The stirring rod 30 is driven by a motor to rotate, and the stirring rod 30 drives the pusher plate 31 and the paddle rod 32 to move in a circular motion, thereby stirring the mixture of sewage and reagents and improving the reaction efficiency. Secondly, the spiral pusher plate 31 can push the precipitate to one side and promote the precipitate to collect and be discharged into the discharge pipe 12.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fluoride-containing wastewater treatment device, characterized in that, It includes: The processing box (10) has a feeding pipe (11) fixedly installed on the side wall for feeding materials and a discharge pipe (12) fixedly installed on the bottom of the processing box (10) for discharging materials. A sealing structure is installed inside the cavity of the treatment tank (10) and is used to collect the waste gas generated during the treatment of fluoride wastewater. The sealing structure includes a partition (20), a baffle (21), and a push cylinder (22) for driving the baffle (21) to move. The partition (20) is fixed on the inner wall of the treatment tank (10) and the partition (20) divides the cavity of the treatment tank (10) into upper and lower spaces. The baffle (21) is located on the top side of the partition (20). The baffle (21) has two feeding ports (23), and a gas collection hood (24) is provided above one of the feeding ports (23). The top of the partition (20) has a through opening. The baffle (21) is driven by the push cylinder (22) to align the feeding port (23) with the through opening of the partition (20). A stirring structure is installed inside the treatment tank (10) to stir the sewage.

2. The fluoride-containing wastewater treatment equipment according to claim 1, characterized in that: The longitudinal section of the partition (20) is U-shaped, and a groove is formed on the top of the partition (20). The through opening is opened on the groove of the partition (20).

3. The fluoride-containing wastewater treatment equipment according to claim 1, characterized in that: The baffle (21) is a rectangular plate. The width of the baffle (21) is equal to the width of the groove at the top of the partition (20). The length of the baffle (21) is greater than the length of the through opening at the top of the partition (20).

4. The fluoride-containing wastewater treatment equipment according to claim 1, characterized in that: The gas collecting hood (24) is funnel-shaped. The larger end of the gas collecting hood (24) is fixed to the top side of the baffle (21), and the smaller end of the gas collecting hood (24) is connected to a gas collecting pipe.

5. The fluoride-containing wastewater treatment equipment according to claim 1, characterized in that: The push cylinder (22) is fixedly installed on one side of the processing box (10). The output shaft of the push cylinder (22) is fixedly connected to the mounting plate, and the mounting plate is fixedly connected to the top surface of the baffle (21).

6. The fluoride-containing wastewater treatment equipment according to claim 1, characterized in that: The stirring structure includes a stirring rod (30), a pusher plate (31), and several paddles (32). The stirring rod (30) is rotatably connected to the processing tank (10) and is located below the partition plate (20). A motor is fixedly mounted on the processing tank (10), and the output end of the motor is connected to the stirring rod (30). The pusher plate (31) and the paddles (32) are both fixedly connected to the stirring rod (30).

7. The fluoride-containing wastewater treatment equipment according to claim 6, characterized in that: The motor is fixedly connected to the processing box (10) via a sealing flange. The side wall of the processing box (10) has a shaft hole, and the output shaft of the motor extends through the shaft hole into the cavity of the processing box (10) and is fixedly connected to the stirring rod (30).

8. The fluoride-containing wastewater treatment equipment according to claim 6, characterized in that: The push plate (31) is a spiral metal plate, and the paddle (32) is cylindrical. Several paddles (32) are equidistantly arranged on the wall of the stirring rod (30), and each paddle (32) is located within the pitch of the push plate (31).

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