Defluorination device for wastewater for aluminum ash wet treatment

Abstract

The utility model relates to the technical field of pipes, and discloses a wastewater defluorination device for aluminum ash wet process treatment, which comprises a sedimentation tank, a water inlet and a filter tank, a fixed frame is fixedly arranged on the upper surface of the sedimentation tank, a movable plate is arranged in the fixed frame, support rods in bilateral symmetry are erected in the fixed frame, and the movable plate is arranged in the fixed frame. A rotatable threaded rod is erected between the supporting rods, the front end of the threaded rod extends and penetrates through the front side wall of the sedimentation tank, a first motor is fixedly installed on the front side face of the sedimentation tank, the output end of the first motor is fixedly connected with the front end of the threaded rod, the threaded rod and the supporting rods both penetrate through a moving plate, and the threaded rod and the moving plate are screwed together; the device comprises a movable plate, extending plates which are symmetrical left and right are formed below the movable plate, a driving assembly is arranged on the extending plates, a stirring assembly is arranged on the driving assembly, the stirring assembly can conduct stirring at different positions in a sedimentation tank, the stirring speed can be increased conveniently, and a defluorination flocculant and fluorine-containing wastewater can be fully and rapidly mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of defluorination devices for wastewater in wet treatment of aluminum ash, and particularly relates to a defluorination device for wastewater in wet treatment of aluminum ash. Background Technique

[0002] The wet treatment of aluminum ash mainly reacts aluminum ash with chemical agents at a certain temperature, and uses the precipitates generated by chemical reactions to remove impurities, useful metals and fluorides in the aluminum ash. The wet treatment of aluminum ash will generate treated wastewater containing fluorine. If the fluorine-containing wastewater is directly discharged into nature, it will also cause serious ecological pollution, lead to local fluorine exceeding the standard, and directly threaten human life and health. The fluorine chemical industry is a high-pollution and high-risk industry, and fluorine-containing wastewater will corrode equipment, accelerate the equipment depreciation rate, and increase the economic burden of enterprises. Therefore, it is necessary to carry out defluorination treatment on fluorine-containing wastewater to ensure compliance discharge.

[0003] When currently carrying out defluorination treatment on fluorine-containing wastewater, the method of adding defluorination flocculants is mostly adopted. The flocs have a strong adsorption effect on fluoride ions, and the flocs settle, so as to achieve the purpose of defluorinating the wastewater. To ensure the defluorination efficiency and quality, it is necessary to fully mix the defluorination flocculants and fluorine-containing wastewater. The currently used stirring mechanisms are mostly fixed in position and stir a certain area intensively. The stirring effects on the fluorine-containing wastewater at each position are different, and it is not convenient to stir the fluorine-containing wastewater at each position evenly and quickly. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a defluorination device for wastewater in wet treatment of aluminum ash. By designing that the rotation of the first motor drives the rotation of the threaded rod and the moving plate is screwed, the moving plate moves back and forth along the support rod, so that the driving component and the stirring component move back and forth, changing the front and back positions of the stirring component. Then, by using the rotation of the second motor to drive the rotation of the bidirectional lead screw, the bidirectional lead screw is screwed with the moving frame, so that the moving frame moves left and right along the guide rod, driving the stirring component to move left and right, changing the left and right positions of the stirring component. The two cooperate to enable the stirring component to stir at different positions in the sedimentation tank, which is convenient for accelerating the stirring speed and facilitating the full and rapid mixing of the defluorination flocculants and fluorine-containing wastewater.

[0005] The utility model provides the following technical solution: A defluorination device for wastewater in the wet treatment of aluminum ash, including a sedimentation tank, a water inlet, and a filtration tank. A fixing frame is fixedly arranged on the upper surface of the sedimentation tank. A moving plate is arranged inside the fixing frame. Left and right symmetric support rods are arranged inside the fixing frame. A rotatable threaded rod is arranged between the support rods. The front end of the threaded rod extends through the front side wall of the sedimentation tank. A first motor is fixedly installed on the front side of the sedimentation tank. The output end of the first motor is fixedly connected to the front end of the threaded rod. The threaded rod and the support rods both penetrate through the moving plate and the threaded rod is screwed with the moving plate. Symmetric extension plates are formed below the moving plate. A driving component is arranged on the extension plates. A stirring component is arranged on the driving component.

[0006] Further, the driving component includes a reciprocating screw rod, a guide rod, a moving frame, and a second motor. Front and rear symmetric guide rods are arranged between the extension plates. A reciprocating screw rod is arranged between the two guide rods. The right end of the reciprocating screw rod penetrates through the extension plate on the right side. A second motor is fixedly installed on the right side of the extension plate on the right side. The output shaft of the second motor is fixedly connected to the right end of the reciprocating screw rod. A moving frame is arranged between the two extension plates. The reciprocating screw rod and the guide rod penetrate through the moving frame and the reciprocating screw rod is screwed with it.

[0007] Further, the stirring component includes a third motor, a rotating shaft, and stirring blades. A third motor with an output shaft downward is fixedly installed inside the moving frame. The output shaft of the third motor extends downward. The output shaft of the third motor is fixedly connected to a rotating shaft. Multiple groups of stirring blades are formed on the rotating shaft.

[0008] Further, a water inlet is installed on the right side wall of the sedimentation tank. An installation frame is formed on the left side wall of the sedimentation tank. A sewage suction pump is fixedly installed on the installation frame through bolts. A sewage suction pipe is connected to the right side of the sewage suction pump. A sewage discharge pipe is connected to the left side of the sewage suction pump.

[0009] Further, a filtration tank is arranged on the left side of the sedimentation tank. A card slot is opened from left to right inside the filtration tank. A filtration frame is clamped inside the card slot. A filter screen is installed on the filtration frame. A water outlet is arranged at a lower position on the left side wall of the filtration tank.

[0010] Further, legs are arranged on the lower surfaces of both the sedimentation tank and the filtration tank.

[0011] Further, the sewage suction pipe extends to the right and extends into the sedimentation tank, and the sewage discharge pipe extends to the left and is above the filtration tank.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By designing that the rotation of the first motor drives the rotation of the threaded rod and engages with the moving plate, the moving plate moves back and forth along the support rod, so that the driving assembly and the stirring assembly move back and forth, changing the front and rear positions of the stirring assembly. Then, by using the rotation of the second motor to drive the rotation of the bidirectional lead screw, the bidirectional lead screw engages with the moving frame, so that the moving frame moves left and right along the guide rod, driving the stirring assembly to move left and right, changing the left and right positions of the stirring assembly. The cooperation of the two can realize the stirring of the stirring assembly at different positions in the sedimentation tank, which is convenient for accelerating the stirring speed and facilitating the full and rapid mixing of the defluorination flocculant and the fluorine-containing wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 is a schematic diagram of the distribution position of the stirring assembly of the present invention;

[0016] Figure 3 is a schematic structure of the filter rack of the present invention;

[0017] Figure 4 is a schematic structure of the sedimentation tank of the present invention;

[0018] Figure 5 is a schematic diagram of the structure of the filter tank of the present invention.

[0019] In the figure: 1, sedimentation tank; 2, water inlet; 3, fixed frame; 4, threaded rod; 5, support rod; 6, moving plate; 7, first motor; 8, extension plate; 9, reciprocating lead screw; 10, guide rod; 11, moving frame; 12, second motor; 13, third motor; 14, rotating shaft; 15, stirring blade; 16, mounting frame; 17, sewage suction pump; 18, sewage suction pipe; 19, sewage discharge pipe; 20, filter tank; 21, card slot; 22, filter rack; 23, filter net; 24, water outlet; 25, leg. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5, including a sedimentation tank 1, a water inlet 2, and a filtration tank 20. The water inlet 2 is installed on the right side wall of the sedimentation tank 1. The filtration tank 20 is arranged on the left side of the sedimentation tank 1. A clamping groove 21 is formed in the filtration tank 20 from left to right. A filtration rack 22 is clamped inside the clamping groove 21. The whole filtration rack 22 is clamped inside the clamping groove 21, and the filtration rack 22 can be taken out of the clamping groove 21, which is convenient for subsequent cleaning and replacement of the filtration rack 22. A filter screen 23 is installed on the filtration rack 22. The filter screen 23 filters the flocs, leaving the flocs adsorbed with fluoride ions on the filter screen 23. A water outlet 24 is arranged at the lower position of the left side wall of the filtration tank 20, and a control valve is arranged on the water outlet 24, which is convenient for opening and closing at any time. Legs 25 are arranged on the lower surfaces of both the sedimentation tank 1 and the filtration tank 20, leaving a certain space from the ground, which is convenient for cleaning the device or the ground. An installation rack 16 is formed on the left side wall of the sedimentation tank 1. The whole installation rack 16 is composed of a horizontal plate body and an inclined plate body. The inclined plate body enhances the overall stability of the installation rack 16. A sewage suction pump 17 is fixedly installed on the installation rack 16 through bolts. A sewage suction pipe 18 is connected to the right side of the sewage suction pump 17, and a sewage discharge pipe 19 is connected to the left side of the sewage suction pump 17. The sewage suction pipe 18 extends to the right and extends into the sedimentation tank 1, and the sewage discharge pipe 19 extends to the left and is located above the filtration tank 20, which is convenient for sucking out the water in the sedimentation tank 1 and discharging it into the filtration tank 20;

[0022] After the fluorine-containing wastewater is stirred and coagulated, the sewage suction pump 17 is started. The sewage suction pump 17 sucks out the wastewater from the sedimentation tank 1 through the sewage suction pipe 19 and discharges it through the sewage discharge pipe 18. The wastewater enters the filtration tank 20 through the filtration rack 22 and the filter screen 23. During this process, the filter screen 23 filters the flocs, leaving the flocs adsorbed with fluoride ions on the filter screen 23. The defluorinated water enters the filtration tank 20. After collecting a certain amount of water, the valve on the water outlet 24 can be opened according to the actual situation to discharge the defluorinated water;

[0023] Please refer to Figures 1-5, a fixing frame 3 is fixedly arranged on the upper surface of the sedimentation tank 1. A water level marking line is formed on the inner wall of the sedimentation tank 1, which is convenient for visually observing the water volume and determining the dosage of the defluorinating agent. A moving plate 6 is arranged inside the fixing frame 3. Symmetrically arranged left and right support rods 5 are erected inside the fixing frame 3. The support rods 5 play a role in supporting and limiting the moving plate 6, enabling the moving plate 6 to move horizontally along the support rods 5. A rotatable threaded rod 4 is erected between the support rods 5. The front end of the threaded rod 4 extends through the front side wall of the sedimentation tank 1. A first motor 7 is fixedly installed on the front side of the sedimentation tank 1. The first motor 7 is a forward and reverse motor, which can drive the threaded rod 4 to rotate forward and backward. The output end of the first motor 7 is fixedly connected to the front end of the threaded rod 4. Both the threaded rod 4 and the support rods 5 penetrate through the moving plate 6 and the threaded rod 4 is screwed with the moving plate 6. When the threaded rod 4 rotates, the moving plate 6 can move along the support rods 5. Symmetrically arranged left and right extension plates 8 are formed below the moving plate 6. A driving assembly is arranged on the extension plates 8, and a stirring assembly is arranged on the driving assembly. The driving assembly includes a reciprocating lead screw 9, a guide rod 10, a moving frame 11, and a second motor 12. Symmetrically arranged front and rear guide rods 10 are erected between the extension plates 8. Here, the guide rods 10 play a role in supporting and guiding, restricting the movement track of the moving frame 11. A reciprocating lead screw 9 is arranged between the two guide rods 10. The right end of the reciprocating lead screw 9 penetrates through the extension plate 8 on the right side. A second motor 12 is fixedly installed on the right side of the extension plate 8 on the right side. The output shaft of the second motor 12 is fixedly connected to the right end of the reciprocating lead screw 9. A moving frame 11 is arranged between the two extension plates 8. The reciprocating lead screw 9 and the guide rod 10 penetrate through the moving frame 11 and the reciprocating lead screw 9 is screwed with it. When the reciprocating lead screw 9 rotates, the moving frame 11 can reciprocate along the guide rod 10. The stirring assembly includes a third motor 13, a rotating shaft 14, and stirring blades 15. A third motor 13 with its output shaft downward is fixedly installed inside the moving frame 11. The output shaft of the third motor 13 extends downward. The output shaft of the third motor 13 is fixedly connected to a rotating shaft 14. Multiple groups of stirring blades 15 are formed on the rotating shaft 14. The stirring blades 15 are inclined to facilitate lifting the water upward during rotation, completing the wastewater layer change and facilitating uniform stirring;

[0024] When stirring the fluorine-containing wastewater, first introduce an appropriate amount of fluorine-containing wastewater into the sedimentation tank 1. After detection, determine the fluorine content in the wastewater, so as to determine the dosage of the defluorinating agent. Then add the defluorinating agent into the sedimentation tank 1, control the rotation of the third motor 13, and the rotation of the third motor 13 drives the rotation of the rotating shaft 14 and the stirring blades 15 to stir and mix the defluorinating agent and the fluorine-containing wastewater. At the same time, control the rotation of the first motor 7, and the rotation of the first motor 7 drives the rotation of the threaded rod 4. The rotation of the threaded rod 4 is screwed with the moving plate 6, so that the moving plate 6 moves back and forth along the support rod 5, thereby enabling the reciprocating screw rod 9, the guide rod 10, the moving frame 11, the second motor 12, the third motor 13, the rotating shaft 14, and the stirring blades 15 to move back and forth, changing the front and rear positions of the rotating shaft 14 and the stirring blades 15. Then use the rotation of the second motor 12 to drive the rotation of the reciprocating screw rod 9, so that the reciprocating screw rod 9 is screwed with the moving frame 11, causing the moving frame 11 to move left and right along the guide rod 10, driving the third motor 13, the rotating shaft 14, and the stirring blades 15 to move left and right, changing the left and right positions of the third motor 13, the rotating shaft 14, and the stirring blades 15. The cooperation of the two can realize the stirring of the third motor 13, the rotating shaft 14, and the stirring blades 15 at different positions in the sedimentation tank 1;

[0025] Working principle

[0026] When using this device, first connect the water inlet 2 to the sewage conveying pipeline, and introduce an appropriate amount of fluorine-containing wastewater into the sedimentation tank 1. After detection, determine the fluorine content in the wastewater, so as to determine the dosage of the defluorinating agent. Then add the defluorinating agent into the sedimentation tank 1, control the rotation of the third motor 13. The rotation of the third motor 13 drives the rotation of the rotating shaft 14 and the stirring blades 15 to stir and mix the defluorinating agent and the fluorine-containing wastewater. At the same time, control the rotation of the first motor 7. The rotation of the first motor 7 drives the rotation of the threaded rod 4. The rotation of the threaded rod 4 is screwed with the moving plate 6, so that the moving plate 6 moves back and forth along the support rod 5, thereby making the reciprocating screw rod 9, the guide rod 10, the moving frame 11, the second motor 12, the third motor 13, the rotating shaft 14, and the stirring blades 15 move back and forth, changing the front and rear positions of the rotating shaft 14 and the stirring blades 15. Then use the rotation of the second motor 12 to drive the rotation of the reciprocating screw rod 9, so that the reciprocating screw rod 9 is screwed with the moving frame 11, making the moving frame 11 move left and right along the guide rod 10, driving the third motor 13, the rotating shaft 14, and the stirring blades 15 to move left and right, changing the left and right positions of the third motor 13, the rotating shaft 14, and the stirring blades 15. The cooperation of the two can realize the stirring of the third motor 13, the rotating shaft 14, and the stirring blades 15 at different positions in the sedimentation tank 1. When the fluorine-containing wastewater is stirred and coagulated, start the sewage suction pump 17. The sewage suction pump 17 sucks the wastewater out of the sedimentation tank 1 through the sewage suction pipe 19 and discharges it through the sewage discharge pipe 18. The wastewater enters the filtration tank 20 through the filtration rack 22 and the filter screen 23. During this process, the filter screen 23 filters the flocs, leaving the flocs adsorbed with fluoride ions on the filter screen 23. The defluorinated water enters the filtration tank 20. After collecting a certain amount of water, the valve on the water outlet 24 can be opened according to the actual situation to discharge the defluorinated water.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A defluorination device for wastewater used in wet processing of aluminum ash, comprising a sedimentation tank (1), a water inlet (2), and a filter tank (20), characterized in that: A fixing frame (3) is fixedly arranged on the upper surface of the sedimentation tank (1), a movable plate (6) is arranged inside the fixing frame (3), and left-right symmetrical support rods (5) are arranged inside the fixing frame (3), and a rotatable threaded rod (4) is arranged between the support rods (5), and the front end of the threaded rod (4) extends through the front side wall of the sedimentation tank (1), and a first motor (7) is fixedly installed on the front side of the sedimentation tank (1), and the output end of the first motor (7) is fixedly connected to the front end of the threaded rod (4), the threaded rod (4) and the support rod (5) both penetrate the movable plate (6), and the threaded rod (4) and the movable plate (6) are screwed together, and a left-right symmetrical extension plate (8) is formed below the movable plate (6), and a driving assembly is arranged on the extension plate (8), and a stirring assembly is arranged on the driving assembly.

2. A defluorination device for wastewater used in wet treatment of aluminum ash according to claim 1, characterized in that: The driving assembly comprises a reciprocating screw (9), a guide rod (10), a moving frame (11), and a second motor (12); a front-to-rear symmetrical guide rod (10) is arranged between the extension plates (8); a reciprocating screw (9) is arranged between the two guide rods (10); the right end of the reciprocating screw (9) passes through the extension plate (8) on the right side; a second motor (12) is fixedly mounted on the right side of the extension plate (8) on the right side; an output shaft of the second motor (12) is fixedly connected to the right end of the reciprocating screw (9); a moving frame (11) is arranged between the two extension plates (8); the reciprocating screw (9) and the guide rod (10) pass through the moving frame (11), and the reciprocating screw (9) is screwed with the moving frame (11).

3. A defluorination device for wastewater used for wet treatment of aluminum ash according to claim 2, characterized in that: The stirring assembly comprises a third motor (13), a rotating shaft (14), and stirring blades (15); the third motor (13) with its output shaft facing downward is fixedly mounted inside the mobile frame (11); the output shaft of the third motor (13) extends downward; the output shaft of the third motor (13) is fixedly connected to the rotating shaft (14); and a plurality of groups of stirring blades (15) are formed on the rotating shaft (14).

4. The defluorination device for wastewater used for wet treatment of aluminum ash according to claim 1, characterized in that: A water inlet (2) is installed on the right side wall of the sedimentation tank (1), and a mounting frame (16) is formed on the left side wall of the sedimentation tank (1). A sewage suction pump (17) is fixedly installed on the mounting frame (16) by bolts. A sewage suction pipe (18) is connected to the right side of the sewage suction pump (17), and a sewage discharge pipe (19) is connected to the left side of the sewage suction pump (17).

5. The defluorination device for wastewater used for wet treatment of aluminum ash according to claim 1, characterized in that: A filter tank (20) is arranged on the left side of the sedimentation tank (1), a slot (21) is provided in the filter tank (20) from left to right, a filter frame (22) is arranged inside the slot (21), a filter screen (23) is installed on the filter frame (22), and a water outlet (24) is arranged at the lower position of the left side wall of the filter tank (20).

6. The defluorination device for wastewater used for wet treatment of aluminum ash according to claim 1, characterized in that: The lower surfaces of the sedimentation tank (1) and the filtration tank (20) are both provided with supporting legs (25).

7. The defluorination device for wastewater used for wet treatment of aluminum ash according to claim 4, characterized in that: The sewage suction pipe (18) extends to the right side and extends into the interior of the sedimentation tank (1), and the sewage discharge pipe (19) extends to the left side and is located above the filter tank (20).

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