Wastewater treatment device for producing rare earth fluoride

Abstract

The utility model relates to a wastewater treatment device for producing rare earth fluoride, which comprises a settling tank, two groups of supporting legs are fixedly connected to the upper surface of the settling tank, the top ends of the two groups of supporting legs are jointly and fixedly connected with a flocculation tank, and the upper surface of the flocculation tank is fixedly communicated with a first electromagnetic valve; the output end of the first electromagnetic valve is fixedly communicated with a flocculating agent adding pipe, and the upper surface of the settling tank is fixedly communicated with a second electromagnetic valve. According to the device, the precipitation tank is arranged in the precipitation tank, the filter plate is arranged at the top of the precipitation tank, the filter plate is used for blocking sediments, a water outlet in the precipitation tank is matched with a water drainage pipe, filtered wastewater is discharged to the next treatment mechanism for further treatment, the precipitation tank is movably arranged in the precipitation tank, and when the sediments in the precipitation tank are more, the precipitation tank is separated from the precipitation tank; the electric push rod drives the sealing bottom cover at the bottom of the precipitation tank to be opened, so that precipitates in the precipitation tank can be discharged in time, and the treatment capacity of wastewater is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment in rare earth fluoride production, in particular to a wastewater treatment device for producing rare earth fluoride. Background Art

[0002] Rare earth fluorides are a class of chemical compounds formed by rare earth metals and fluorine atoms. Rare earth elements are a group of elements in the periodic table, including lanthanides and scandium, yttrium, cerium and terbium. Rare earth fluoride compounds have many important applications and properties. Rare earth fluoride compounds play a key role in the optical and electronic industries. They have high fluorescence efficiency and a wide emission spectrum range, and are widely used in phosphors, light-emitting diodes, lasers, and fiber-optic communications.

[0003] During the production and processing of rare earth fluoride, the rare earth salt solution reacts with hydrochloric acid to generate rare earth chloride, and then the rare earth chloride reacts with hydrofluoric acid to generate rare earth fluoride, precipitation and filtration: the solution of rare earth fluoride is saturated to generate a precipitate of rare earth fluoride, and the precipitate is separated by filtration. A lot of fluoride-containing wastewater is generated in the production process, and it needs to be treated before the wastewater is discharged. The most commonly used treatment method is coagulation precipitation, which uses coagulants to form positively charged colloid particles in water to adsorb fluoride ions in the wastewater. However, this treatment method will produce a lot of precipitates, which are not easy to clean up. Long-term accumulation will affect the wastewater treatment volume. For this reason, we propose a wastewater treatment device for the production of rare earth fluoride to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems in the prior art, the utility model provides a wastewater treatment device for producing rare earth fluoride.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] A wastewater treatment device for producing rare earth fluoride comprises a sedimentation box, the upper surface of which is fixedly connected with two groups of supporting legs, the top ends of the two groups of supporting legs are commonly fixedly connected with a flocculation box, the upper surface of the flocculation box is fixedly connected with a first solenoid valve, the output end of the first solenoid valve is fixedly connected with a flocculant addition pipe, the upper surface of the sedimentation box is fixedly connected with a second solenoid valve, the top end of the second solenoid valve is connected with the bottom surface of the flocculation box, the interior of the sedimentation box is slidably connected with a sedimentation tank, the interior of the sedimentation tank is fixedly installed with a filter plate, the back of the sedimentation tank is provided with a drain port, the bottom surface of the sedimentation tank is fixedly connected with a sealed bottom cover, the front and back sides of the sedimentation box are fixedly installed with two electric push rods, the output end of each of the electric push rods is connected to the outer surface of the sealed bottom cover.

[0009] The upper surface of the flocculation box is fixedly connected with a third electromagnetic valve, the top of the third electromagnetic valve is fixedly connected with a water inlet pipe, and the ends of the water inlet pipe and the flocculant addition pipe away from each other are fixedly connected with a connecting flange.

[0010] The inner wall of the flocculation box is fixedly inlaid with two sealed bearings, the inner rings of the two sealed bearings are jointly fixedly mounted with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with stirring blades arranged at equal distances, and the left side of the flocculation box is fixedly mounted with a driving motor, and the output end of the driving motor is connected to the left end of the rotating shaft.

[0011] A hood is fixedly installed on the left side of the flocculation box, and a control panel is fixedly installed on the front side of the flocculation box.

[0012] A display window is provided on the front of the sedimentation box, a drain pipe is fixedly connected to the back of the sedimentation box, the drain pipe corresponds to the drain port, and a sealing gasket is fixedly connected to the upper surface of the sealed bottom cover.

[0013] The left and right sides of the sedimentation box are fixedly connected with support plates, the bottom ends of the two support plates are commonly fixedly connected with a base, the upper surface of the base is provided with a fixing hole, the sides of the two support plates close to each other are provided with a slide groove, each of the slide grooves is slidably connected with a slider, and the sides of the two sliders close to each other are connected to the sealed bottom cover.

[0014] (III) Beneficial effects

[0015] The beneficial effects of the utility model are as follows: the utility model is composed of a flocculation box and a sedimentation box, a first electromagnetic valve is arranged on the top of the flocculation box to cooperate with a flocculant adding pipe, the flocculant is added into the flocculation box, the stirring piece on the rotating shaft is driven by a driving motor to make the flocculant fully combine with the wastewater, the wastewater after flocculation enters the sedimentation box through the second electromagnetic valve, a sedimentation tank is arranged in the sedimentation box, a filter plate is arranged on the top of the sedimentation tank, the filter plate blocks the sediment, the drain port on the sedimentation tank cooperates with the drain pipe to discharge the filtered wastewater to the next treatment mechanism for further treatment, the sedimentation tank is movably arranged in the sedimentation box, when there are a lot of sediments in the sedimentation box, the sealed bottom cover at the bottom of the sedimentation tank is driven to open by an electric push rod, the sediment in the sedimentation box can be discharged in time, and the treatment amount of the wastewater will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a wastewater treatment device for producing rare earth fluoride;

[0017] Figure 2 A schematic diagram of the side view of the structure of the separation state of the sedimentation tank and the sedimentation tank in the wastewater treatment device for producing rare earth fluoride;

[0018] Figure 3 A front cross-sectional view of a flocculation tank in a wastewater treatment device for producing rare earth fluoride;

[0019] Figure 4 A front cross-sectional view of a support plate in a wastewater treatment device for producing rare earth fluoride;

[0020] [Description of Reference Numerals]

[0021] In the figure: 1. sedimentation tank; 2. flocculation tank; 3. sealing gasket; 4. base; 5. connecting flange; 6. flocculant addition pipe; 7. first solenoid valve; 8. third solenoid valve; 9. water inlet pipe; 10. control panel; 11. machine cover; 12. support leg; 13. display window; 14. electric push rod; 15. sealing bottom cover; 16. support plate; 17. fixing hole; 18. second solenoid valve; 19. filter plate; 20. sedimentation tank; 21. drain outlet; 22. drain pipe; 23. drive motor; 24. stirring blade; 25. rotating shaft; 26. sealed bearing; 27. slider; 28. slide groove. DETAILED DESCRIPTION

[0022] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0023] Please refer to Figures 1 to 4As shown, a wastewater treatment device for producing fluorinated rare earths of the utility model comprises a sedimentation tank 1, the upper surface of the sedimentation tank 1 is fixedly connected with two groups of supporting legs 12, the top ends of the two groups of supporting legs 12 are commonly fixedly connected with a flocculation tank 2, the upper surface of the flocculation tank 2 is fixedly connected with a first solenoid valve 7, the output end of the first solenoid valve 7 is fixedly connected with a flocculant adding pipe 6, the flocculant adding pipe 6 is connected to an injection pump according to use requirements, and the flocculant to be used is injected into the flocculation tank 2, the upper surface of the sedimentation tank 1 is fixedly connected with a second solenoid valve 18, the top end of the second solenoid valve 18 is connected with the bottom surface of the flocculation tank 2, the interior of the sedimentation tank 1 is slidably connected with a sedimentation tank 20, the interior of the sedimentation tank 20 is fixedly installed with a filter plate 19, the back of the sedimentation tank 20 is provided with a drain port 21, the bottom surface of the sedimentation tank 20 is fixedly connected with a sealed bottom cover 15, the front and back sides of the sedimentation tank 1 are fixedly installed with two electric push rods 14, and the output end of each electric push rod 14 is connected to the outer surface of the sealed bottom cover 15. In the actual implementation process, wastewater enters the flocculation box 2 through the water inlet pipe 9, the first solenoid valve 7 controls the flocculant adding pipe 6 to add flocculant into the flocculation box 2, and then controls the driving motor 23 to start driving the stirring blade 24 on the rotating shaft 25 to mix the flocculant and the wastewater. When the amount of wastewater in the flocculation box 2 is large, the second solenoid valve 18 is opened, and the flocculated wastewater is put into the sedimentation box 1 for sedimentation and filtration. A sedimentation tank 20 is arranged in the sedimentation box 1, and the filter plate 19 on the sedimentation tank 20 filters the sediment. The filtered wastewater is discharged to the lower treatment mechanism through the drain port 21 and the drain pipe 22. The amount of sediment in the sedimentation box 1 can be observed through the display window 13 on the sedimentation box 1. When the sediment increases, the electric push rod 14 is started to drive the sealed bottom cover 15 to slide, and the sealed bottom cover 15 is opened with the cooperation of the slide groove 28 and the slider 27, so as to discharge the sediment in the sedimentation box 1.

[0024] Optionally, the upper surface of the flocculation box 2 is fixedly connected with a third solenoid valve 8, the top of the third solenoid valve 8 is fixedly connected with a water inlet pipe 9, the ends of the water inlet pipe 9 and the flocculant adding pipe 6 that are away from each other are fixedly connected with a connecting flange 5, the front of the sedimentation box 1 is provided with a display window 13, the back of the sedimentation box 1 is fixedly connected with a drain pipe 22, the drain pipe 22 corresponds to the drain port 21, and the upper surface of the sealing bottom cover 15 is fixedly connected with a sealing gasket 3. In the actual implementation process, the water inlet pipe 9 can be connected to the wastewater discharge port of the fluoridation rare earth processing device through the connecting flange 5, so as to facilitate the collection and treatment of the wastewater, the flocculant adding pipe 6 transports the corresponding flocculant to the flocculation box 2 through a liquid pump according to the use requirements, and the drain port 21 on the sedimentation tank 20 is located below the filter plate 19, and can be connected with the drain pipe 22 after the sedimentation tank 20 is in place, so that the wastewater after sedimentation and filtration is discharged from the lower treatment device.

[0025] Optionally, two sealed bearings 26 are fixedly embedded on the inner wall of the flocculation box 2, and a rotating shaft 25 is fixedly installed on the inner rings of the two sealed bearings 26. The outer surface of the rotating shaft 25 is fixedly connected with stirring blades 24 arranged at equal distances. A driving motor 23 is fixedly installed on the left side of the flocculation box 2, and the output end of the driving motor 23 is connected to the left end of the rotating shaft 25. A hood 11 is fixedly installed on the left side of the flocculation box 2, and a control panel 10 is fixedly installed on the front of the flocculation box 2. In the actual implementation process, by setting a rotating shaft 25 in the flocculation box 2, the driving motor 23 drives the stirring blade 24 on the rotating shaft 25 to stir the flocculant and the wastewater to make them fully flocculate. A heat dissipation window is set on one side of the machine cover 11 to dissipate heat from the driving motor 23. The control panel 10 is electrically connected to the electric push rod 14, the driving motor 23, the first solenoid valve 7, the second solenoid valve 18 and the third solenoid valve 8. The control panel 10 has a built-in controller. A water level sensor is set in the flocculation box 2. The controller cooperates with the water level sensor to discharge the flocculated water to the sedimentation box 1 for sedimentation in time.

[0026] Optionally, the left and right sides of the sedimentation box 1 are fixedly connected with support plates 16, the bottom ends of the two support plates 16 are fixedly connected with the base 4, the upper surface of the base 4 is provided with a fixing hole 17, and the sides of the two support plates 16 close to each other are provided with a slide groove 28, and the inside of each slide groove 28 is slidably connected with a slider 27, and the sides of the two sliders 27 close to each other are connected to the sealed bottom cover 15. In the actual implementation process, the slide groove 28 and the slider 27 cooperate with the sealed bottom cover 15, and when the electric push rod 14 drives the sealed bottom cover 15 to fall, the stability of the sealed bottom cover 15 can be ensured.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description and the drawings, and the specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A wastewater treatment device for producing rare earth fluoride, comprising a sedimentation tank (1), characterized in that: The upper surface of the sedimentation box (1) is fixedly connected to two groups of support legs (12), the top ends of the two groups of support legs (12) are commonly fixedly connected to a flocculation box (2), the upper surface of the flocculation box (2) is fixedly connected to a first solenoid valve (7), the output end of the first solenoid valve (7) is fixedly connected to a flocculant addition pipe (6), the upper surface of the sedimentation box (1) is fixedly connected to a second solenoid valve (18), the top end of the second solenoid valve (18) is connected to the bottom surface of the flocculation box (2), and the The sedimentation box (1) is slidably connected to a sedimentation tank (20) inside, a filter plate (19) is fixedly installed inside the sedimentation tank (20), a drain outlet (21) is provided on the back of the sedimentation tank (20), a sealed bottom cover (15) is fixedly connected to the bottom surface of the sedimentation tank (20), two electric push rods (14) are fixedly installed on the front and back of the sedimentation box (1), and the output end of each electric push rod (14) is connected to the outer surface of the sealed bottom cover (15).

2. A wastewater treatment device for producing rare earth fluoride according to claim 1, characterized in that: The upper surface of the flocculation box (2) is fixedly connected to a third solenoid valve (8), the top end of the third solenoid valve (8) is fixedly connected to a water inlet pipe (9), and the ends of the water inlet pipe (9) and the flocculant addition pipe (6) that are away from each other are fixedly connected to a connecting flange (5).

3. A wastewater treatment device for producing rare earth fluoride according to claim 1, characterized in that: Two sealed bearings (26) are fixedly embedded on the inner wall of the flocculation box (2), and a rotating shaft (25) is fixedly installed on the inner rings of the two sealed bearings (26). The outer surface of the rotating shaft (25) is fixedly connected with stirring blades (24) arranged at equal distances. A driving motor (23) is fixedly installed on the left side of the flocculation box (2), and the output end of the driving motor (23) is connected to the left end of the rotating shaft (25).

4. A wastewater treatment device for producing rare earth fluoride according to claim 1, characterized in that: A hood (11) is fixedly mounted on the left side of the flocculation box (2), and a control panel (10) is fixedly mounted on the front side of the flocculation box (2).

5. A wastewater treatment device for producing rare earth fluoride according to claim 1, characterized in that: The front of the sedimentation box (1) is provided with a display window (13), the back of the sedimentation box (1) is fixedly connected to a drain pipe (22), the drain pipe (22) corresponds to the drain port (21), and the upper surface of the sealed bottom cover (15) is fixedly connected to a sealing gasket (3).

6. A wastewater treatment device for producing rare earth fluoride according to claim 1, characterized in that: The left and right sides of the sedimentation box (1) are fixedly connected to support plates (16), the bottom ends of the two support plates (16) are commonly fixedly connected to a base (4), the upper surface of the base (4) is provided with a fixing hole (17), the sides of the two support plates (16) close to each other are provided with a slide groove (28), the interior of each slide groove (28) is slidably connected to a slider (27), and the sides of the two sliders (27) close to each other are connected to the sealing bottom cover (15).

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