Deep treatment device for fluorine-containing wastewater

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a fluorine-containing wastewater advanced treatment device which comprises a box body, a treatment box is fixed at the upper end in the box body, a calcium salt adding pipe is fixed at the left end of the upper side of the treatment box, and a wastewater adding pipe is fixed at the right end of the calcium salt adding pipe. The upper ends of the calcium salt adding pipe and the wastewater adding pipe penetrate through the upper side of the box body and extend to the upper end, and a discharge pipe is fixed to the lower side of the treatment box. After calcium salt and fluorine-containing wastewater are mixed and react to generate precipitates, a large amount of precipitates can block a filter screen, the filter screen can be moved into a limiting frame and turned over, and the filter screen can be moved to the interior of the limiting frame; through cooperation of the transverse pipe, the high-pressure spray head, the pump body, the water inlet pipe and the water outlet hose, the filter screen is subjected to reverse flushing, the traditional mode that the filter screen is disassembled and replaced is effectively replaced, and the method saves more time and labor, is easy to operate and does not affect the wastewater treatment progress.

Description

Technical Field

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

[0002] With the continuous development of society and the continuous progress of science, people are becoming increasingly serious about environmental pollution. Among them, fluoride-containing wastewater is even more serious. Fluoride-containing wastewater generally comes from wastewater generated by petrochemicals, electronic component manufacturing, etc., so it is necessary to treat these fluoride-containing wastewaters through treatment devices.

[0003] However, existing processing devices still have the following technical problems in use:

[0004] Existing treatment devices add calcium salts (such as calcium chloride, calcium hydroxide, etc.) to fluoride-containing wastewater, causing fluoride ions to react with calcium ions to form insoluble calcium fluoride precipitates. These precipitates clog the filter screens. Current treatment methods mainly involve replacing or disassembling and cleaning the filter screens, which is not only costly but also complicated to operate.

[0005] Therefore, a deep treatment device for fluoride-containing wastewater is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a device for the deep treatment of fluoride-containing wastewater to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a deep treatment device for fluoride-containing wastewater, comprising a housing, a treatment tank fixed at the upper end of the housing, a calcium salt addition pipe fixed at the upper left end of the treatment tank, a wastewater addition pipe fixed at the right end of the calcium salt addition pipe, the upper ends of the calcium salt addition pipe and the wastewater addition pipe both penetrating the upper side of the housing and extending to the upper end, and a discharge pipe fixed at the lower side of the treatment tank;

[0008] The inner wall of the box is provided with a sliding groove, and a fixed frame is slidably connected inside the sliding groove. A filter screen is fixed inside the fixed frame, and a water purification pipe is fixed to the lower side of the box.

[0009] A limiting frame is fixed to the upper right side of the box body, and a limiting rod is slidably connected to the right side of the limiting frame. The left end of the limiting rod is fixedly connected to the right side of the fixed frame.

[0010] The rear end of the limiting frame is provided with a moving mechanism. The upper end of the limiting frame is fixed with a horizontal tube through the moving mechanism. The lower end of the horizontal tube is fixed with evenly arranged high-pressure nozzles. The upper right end of the box is fixed with a pump body. The water inlet end of the pump body is fixed with a water inlet pipe. The water outlet end of the pump body is fixed with a water outlet hose. The other end of the water outlet hose is fixedly connected to the upper end of the horizontal tube.

[0011] Preferably, both the discharge pipe and the purified water pipe are fixed with electromagnetic switch valves.

[0012] Preferably, a horizontal plate is fixed to the right side of the box, and an impurity collection trough is provided at the upper end of the horizontal plate.

[0013] Preferably, a rubber sealing gasket is fixed inside the groove, and the sidewall of the rubber sealing gasket is in contact with the sidewall of the fixed frame.

[0014] Preferably, a limiting tube is fixed on the right side of the limiting frame, the limiting rod is slidably connected to the limiting tube, a fastening bolt is threaded on the upper side of the limiting tube, and the lower end of the fastening bolt is engaged with the limiting rod.

[0015] Preferably, the moving mechanism includes a mounting block, which is fixedly connected to the rear side of the limiting frame. A telescopic cylinder is fixed to the side wall of the mounting block, and a strip plate is fixed to the upper end of the telescopic cylinder. A lead screw is rotatably connected to the inside of the strip plate through a bearing. A motor is fixed to the left side of the strip plate, and the left end of the lead screw is fixedly connected to the output end of the motor. A moving block is threadedly connected to the wall of the lead screw. The lower side of the moving block is slidably connected to the inner wall of the strip plate. A fixing rod is fixed to the upper side of the moving block, and the upper end of the fixing rod is fixedly connected to the rear side of the horizontal tube.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This application utilizes the method of mixing and reacting calcium salts with fluoride-containing wastewater to produce precipitates. The large amount of precipitates will clog the filter screen. The filter screen can be moved into the interior of the limiting frame and flipped over. The filter screen is then backwashed through the cooperation of the horizontal pipe, high-pressure nozzle, pump body, inlet pipe and outlet hose. This effectively replaces the previous method of disassembling and replacing the filter screen. The method in this application is more time-saving and labor-saving, simple to operate, and will not affect the progress of wastewater treatment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0020] Figure 3 This is a schematic diagram of the back structure of the limit frame;

[0021] Figure 4 This is a structural diagram of the fixed frame and filter screen;

[0022] Figure 5 for Figure 1 A magnified structural diagram of part A in the middle.

[0023] In the diagram: 1. Box body, 2. Processing box, 3. Calcium salt addition pipe, 4. Wastewater addition pipe, 5. Discharge pipe, 6. Fixing frame, 7. Filter screen, 8. Clean water pipe, 9. Limiting frame, 10. Limiting rod, 11. Horizontal pipe, 12. High-pressure nozzle, 13. Pump body, 14. Inlet pipe, 15. Outlet hose, 16. Horizontal plate, 17. Impurity collection tank, 18. Limiting pipe, 19. Mounting block, 20. Telescopic cylinder, 21. Strip plate, 22. Lead screw, 23. Motor, 24. Moving block, 25. Fixing rod. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example:

[0027] Please see Figure 1-5 This utility model provides a technical solution:

[0028] A deep treatment device for fluoride-containing wastewater includes a housing 1. A treatment tank 2 is fixed to the upper end of the housing 1. A calcium salt addition pipe 3 is fixed to the upper left end of the treatment tank 2. A wastewater addition pipe 4 is fixed to the right end of the calcium salt addition pipe 3. After the calcium salt is mixed with the fluoride-containing wastewater, fluoride ions and calcium ions form insoluble fluoride precipitates, thereby removing fluoride ions from the wastewater. Commonly used calcium salts include lime and calcium chloride. The upper ends of both the calcium salt addition pipe 3 and the wastewater addition pipe 4 penetrate the upper side of the housing 1 and extend to the upper end. A discharge pipe 5 is fixed to the lower side of the treatment tank 2.

[0029] The inner wall of the box 1 is provided with a sliding groove, and a fixed frame 6 is slidably connected inside the sliding groove. A filter screen 7 is fixed inside the fixed frame 6. The filter screen 7 filters the generated sediment. A water purification pipe 8 is fixed on the lower side of the box 1.

[0030] A limit frame 9 is fixed to the upper right side of the housing 1. A limit rod 10 is slidably connected to the right side of the limit frame 9. The left end of the limit rod 10 is fixedly connected to the right side of the fixed frame 6.

[0031] The rear end of the limiting frame 9 is provided with a moving mechanism, which can drive the horizontal pipe 11 and the high-pressure nozzle 12 to move up and down and left and right, thereby realizing the reverse rinsing of the filter screen 7. The upper end of the limiting frame 9 is fixed with the horizontal pipe 11 through the moving mechanism, and the lower end of the horizontal pipe 11 is fixed with evenly arranged high-pressure nozzles 12. The upper right end of the housing 1 is fixed with the pump body 13, the water inlet end of the pump body 13 is fixed with the water inlet pipe 14, and the water outlet end of the pump body 13 is fixed with the water outlet hose 15. The other end of the water outlet hose 15 is fixedly connected to the upper end of the horizontal pipe 11. The water inlet pipe 14 is connected to the external water supply equipment, which is not shown in this application.

[0032] Both the drain pipe 5 and the clean water pipe 8 are equipped with electromagnetic switch valves. When drainage is required, the electromagnetic switch valve is opened by manual control, and when drainage is not required, the electromagnetic switch valve is closed by manual control.

[0033] A horizontal plate 16 is fixed on the right side of the housing 1, and an impurity collection tank 17 is provided at the upper end of the horizontal plate 16. The sediment washed down from the side wall of the filter screen 7 is collected through the impurity collection tank 17.

[0034] A rubber sealing gasket is fixed inside the chute. The side wall of the rubber sealing gasket contacts the side wall of the fixed frame 6 to ensure a seal between the fixed frame 6 and the chute, preventing wastewater from leaking out from the gaps.

[0035] The right side of the limiting frame 9 is fixed with a limiting tube 18, and the limiting rod 10 is slidably connected to the limiting tube 18. The upper side of the limiting tube 18 is threaded with a fastening bolt, and the lower end of the fastening bolt is engaged with the limiting rod 10. When the limiting rod 10 rotates 180 degrees, the limiting rod 10 can be secured by tightening the fastening bolt.

[0036] The moving mechanism includes a mounting block 19, which is fixedly connected to the rear side of the limit frame 9. A telescopic cylinder 20 is fixed to the side wall of the mounting block 19. A strip plate 21 is fixed to the upper end of the telescopic cylinder 20. A lead screw 22 is rotatably connected to the inside of the strip plate 21 through a bearing. A motor 23 is fixed to the left side of the strip plate 21. The left end of the lead screw 22 is fixedly connected to the output end of the motor 23. A moving block 24 is threadedly connected to the wall of the lead screw 22. The lower side of the moving block 24 is slidably connected to the inner wall of the strip plate 21. A fixing rod 25 is fixed to the upper side of the moving block 24. The upper end of the fixing rod 25 is fixedly connected to the rear side of the horizontal tube 11. The motor 23 is a forward and reverse motor. The motor 23 drives the lead screw 22 at the output end to rotate. The lead screw 22 drives the moving block 24 to move. The moving block 24 drives the fixing rod 25 to move. The fixing rod 25 drives the upper horizontal tube 11 and the high-pressure nozzle 12 to move left and right, increasing the area for rinsing the filter screen 7.

[0037] Working principle:

[0038] In use, calcium salt is added to the treatment tank 2 through the calcium salt addition pipe 3, and wastewater is added to the treatment tank 2 through the wastewater addition pipe 4. After thorough mixing, the fluoride in the wastewater can be effectively removed and a large amount of precipitate will be generated. The large amount of precipitate will be filtered through the filter screen 7 inside the fixed frame 6. The filtered water is then collected in the tank 1. When a large amount of precipitate accumulates at the top of the filter screen 7, the limiting bolts on the limiting rod 10 are released, and the limiting rod 10 is pulled to the right. The limiting rod 10 drives the fixed frame 6 to move to the right and into the limiting frame 9. Then, rotate the limiting rod 10, which drives the fixed frame 6 to rotate 180 degrees and limit it again. The moving mechanism drives the horizontal pipe 11 and the high-pressure nozzle 12 to move down a certain distance, and can keep the horizontal pipe 11 and the high-pressure nozzle 12 moving left and right. Connect the water inlet pipe 14 to the external water supply equipment. The pump body 13 draws water in and sprays it out through the horizontal pipe 11 and the high-pressure nozzle 12 to achieve reverse flushing of the filter screen 7. After cleaning, the fixed frame 6 is installed inside the box 1 again. The operation is convenient and there is no need to disassemble the filter screen 7.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for advanced treatment of fluorine-containing wastewater, comprising a box (1), characterized in that, A treatment tank (2) is fixed at the upper end of the box (1). A calcium salt addition pipe (3) is fixed at the upper left end of the treatment tank (2). A wastewater addition pipe (4) is fixed at the right end of the calcium salt addition pipe (3). The upper ends of the calcium salt addition pipe (3) and the wastewater addition pipe (4) both penetrate the upper side of the box (1) and extend to the upper end. A discharge pipe (5) is fixed at the lower side of the treatment tank (2). The inner wall of the box (1) is provided with a sliding groove, and a fixed frame (6) is slidably connected inside the sliding groove. A filter screen (7) is fixed inside the fixed frame (6), and a water purification pipe (8) is fixed on the lower side of the box (1). A limiting frame (9) is fixed to the upper right side of the box (1), and a limiting rod (10) is slidably connected to the right side of the limiting frame (9). The left end of the limiting rod (10) is fixedly connected to the right side of the fixed frame (6). The rear end of the limiting frame (9) is provided with a moving mechanism. The upper end of the limiting frame (9) is fixed with a horizontal tube (11) through the moving mechanism. The lower end of the horizontal tube (11) is fixed with evenly arranged high-pressure nozzles (12). The upper right end of the box body (1) is fixed with a pump body (13). The water inlet end of the pump body (13) is fixed with a water inlet pipe (14). The water outlet end of the pump body (13) is fixed with a water outlet hose (15). The other end of the water outlet hose (15) is fixedly connected to the upper end of the horizontal tube (11).

2. The device for advanced treatment of fluorochemical wastewater according to claim 1, characterized in that: Electromagnetic switch valves are fixed to the walls of both the discharge pipe (5) and the clean water pipe (8).

3. The device for advanced treatment of fluorochemical wastewater according to claim 1, characterized in that: A horizontal plate (16) is fixed on the right side of the box (1), and an impurity collection trough (17) is provided at the upper end of the horizontal plate (16).

4. The device for advanced treatment of fluorochemical wastewater according to claim 1, characterized in that: A rubber sealing gasket is fixed inside the groove, and the sidewall of the rubber sealing gasket is in contact with the sidewall of the fixed frame (6).

5. The device for advanced treatment of fluorochemical wastewater according to claim 1, characterized in that: The right side of the limiting frame (9) is fixed with a limiting tube (18), the limiting rod (10) is slidably connected to the limiting tube (18), the upper side of the limiting tube (18) is threaded with a fastening bolt, and the lower end of the fastening bolt is engaged with the limiting rod (10).

6. The device for advanced treatment of fluorochemical wastewater according to claim 1, characterized in that: The moving mechanism includes a mounting block (19), which is fixedly connected to the rear side of the limiting frame (9). A telescopic cylinder (20) is fixed to the side wall of the mounting block (19). A strip plate (21) is fixed to the upper end of the telescopic cylinder (20). A lead screw (22) is rotatably connected to the inside of the strip plate (21) through a bearing. A motor (23) is fixed to the left side of the strip plate (21). The left end of the lead screw (22) is fixedly connected to the output end of the motor (23). A moving block (24) is threadedly connected to the rod wall of the lead screw (22). The lower side of the moving block (24) is slidably connected to the inner wall of the strip plate (21). A fixing rod (25) is fixed to the upper side of the moving block (24). The upper end of the fixing rod (25) is fixedly connected to the rear side of the horizontal tube (11).

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