Scaling treatment equipment of MVR (mechanical vapor recompression) evaporator for electrolytic aluminum ash treatment

Abstract

The utility model relates to the technical field of MVR (Mechanical Vapor Recompression) evaporators, and discloses scaling treatment equipment of an MVR evaporator for electrolytic aluminum ash treatment, which comprises an evaporator tank body, the top of the evaporator tank body is fixedly connected with a feed pipe, the top of the evaporator tank body is fixedly connected with a steam inlet pipe, and the top of the steam inlet pipe is fixedly connected with a steam outlet pipe. The surface of the evaporator tank body is fixedly connected with a liquid discharge pipe, and the top of the liquid discharge pipe is fixedly connected with a valve; and the bottom of the evaporator tank body is fixedly connected with a mounting frame. The surfaces of the cleaning brush plates are in contact with the surface of the inner wall of the evaporator tank body, and the mixing frames and the cleaning brush plates are circumferentially distributed at equal intervals by taking the transmission shaft as the center, so that the cleaning brush plates can completely cover the inner wall of the evaporator tank body during scale treatment, and when the motor drives the transmission shaft to rotate, the cleaning brush plates can clean the inner wall of the evaporator tank body. And the cleaning brush plate can effectively scrape scales on the inner wall of the evaporator tank body, so that the heat transfer efficiency and normal operation of the evaporator are ensured.

Description

Technical Field

[0001] This utility model relates to the field of MVR evaporator technology, and in particular to a device for treating scale buildup using an MVR evaporator for electrolytic aluminum ash treatment. Background Technology

[0002] Common Evaporator Faults and Troubleshooting: Evaporators are important industrial equipment used for heating and evaporating liquids. However, due to long-term use and improper maintenance, evaporators may experience various faults. Aluminum ash, a solid waste generated during the electrolytic aluminum, casting, and recycled aluminum processing, requires a disposal technology that balances environmental compliance with resource utilization benefits. MVR evaporators are highly efficient and energy-saving evaporation equipment that primarily recovers and utilizes the energy of secondary steam through mechanical vapor recompression technology, thereby significantly reducing the demand for external energy. An MVR evaporator mainly consists of a filtration system, preheating system, plate heater, material pump, separator, demister, steam scrubbing tower, and steam compressor.

[0003] An existing MVR evaporator for treating electrolytic aluminum ash has been used for a long time, resulting in a large amount of dirt inside the equipment. When there is a lot of dirt inside the equipment, it affects the working efficiency and quality of the equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a device for treating scale buildup using an MVR evaporator for electrolytic aluminum ash treatment.

[0005] This utility model is achieved by the following technical solution: a device for treating scale buildup using an MVR evaporator for electrolytic aluminum ash treatment, comprising an evaporator tank, a feed pipe fixedly connected to the top of the evaporator tank, a steam inlet pipe fixedly connected to the top of the evaporator tank, a drain pipe fixedly connected to the surface of the evaporator tank, and a valve fixedly connected to the top of the drain pipe;

[0006] An installation frame is fixedly connected to the bottom of the evaporator tank. A heat dissipation base plate is inserted into the bottom of the installation frame. A motor is snapped onto the top of the heat dissipation base plate. A drive shaft is fixedly connected to the output end of the motor. A mixing frame is fixedly connected to the surface of the drive shaft. A cleaning brush plate is fixedly connected to the surface of the mixing frame. A fixing cross plate is fixedly connected to the surface of the mixing frame. A mixing support plate is slidably connected inside the fixing cross plate. A drain pipe is fixedly connected to the bottom of the evaporator tank.

[0007] With the above technical solution, the valve is located on the front of the evaporator tank, which makes it convenient for operators to operate and monitor intuitively. During equipment operation, operators can easily open or close the valve as needed to control the drainage operation of the drain pipe, which is very convenient for the normal operation and maintenance of the evaporator.

[0008] As a further improvement to the above scheme, the feed pipe is located at the left end of the steam inlet pipe, and the valve is located on the front of the evaporator tank.

[0009] With the above technical solution, the feed pipe is located at the left end of the steam inlet pipe. This layout helps to form a reasonable flow path between the material and the steam in the evaporator tank. During operation, the feed can be evaporated more efficiently under the action of steam, avoiding problems such as local overheating or uneven material mixing that may be caused by unreasonable feed and steam inlet positions.

[0010] As a further improvement to the above solution, the top of the motor contacts the bottom surface of the evaporator tank, the heat dissipation base plate is located at the bottom of the evaporator tank, and the drive shaft is located inside the evaporator tank.

[0011] As a further improvement to the above solution, the drain pipe is located at the right end of the mounting frame and at the right end of the motor.

[0012] With the above technical solution, the drain pipe is located at the right end of the mounting frame and the right end of the motor. When it is necessary to discharge dirt or impurities from the evaporator tank, the position of the drain pipe can ensure that the dirt is discharged smoothly under gravity and will not cause pollution or impact on key components such as the motor.

[0013] As a further improvement to the above solution, the number of the hybrid frame and cleaning brush is set to several, and the several hybrid frames and cleaning brushes are distributed equidistantly around the drive shaft.

[0014] As a further improvement to the above solution, the surface of the cleaning brush plate is in contact with the inner wall surface of the evaporator tank, and the mixing frame is located inside the evaporator tank.

[0015] As a further improvement to the above scheme, the number of the hybrid support plates is set to several, and each pair is a group, with the several hybrid support plates distributed equidistantly around the drive shaft.

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

[0017] This invention features a cleaning brush plate whose surface contacts the inner wall of the evaporator tank. Several hybrid frames and cleaning brush plates are equidistantly distributed around the drive shaft. This design allows the cleaning brush plate to fully cover the inner wall of the evaporator tank when dealing with scale buildup. When the motor drives the drive shaft to rotate, the cleaning brush plate can effectively scrape off the scale buildup on the inner wall of the evaporator tank, ensuring the heat transfer efficiency and normal operation of the evaporator.

[0018] This invention improves the efficiency of product mixing and cleaning inside the evaporator tank by setting up a motor and a transmission shaft to drive the mixing frame inside the evaporator tank. Due to centrifugal force, several mixing support plates slide back and forth inside the fixed horizontal plate. This, combined with the driving of the mixing frame, improves the efficiency of product mixing and cleaning inside the evaporator tank. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the side anatomical structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the evaporator tank of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model from below;

[0023] Figure 5 This is a schematic diagram of the right-side structure of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Evaporator tank; 2. Feed pipe; 3. Steam inlet pipe; 4. Drain pipe; 5. Valve; 6. Mounting frame; 7. Heat dissipation base plate; 8. Motor; 9. Drive shaft; 10. Mixing frame; 11. Cleaning brush plate; 12. Fixing cross plate; 13. Mixing support plate; 14. Drain pipe. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figure 1-5This embodiment of an MVR evaporator for treating scale buildup in electrolytic aluminum ash includes an evaporator tank 1, a feed pipe 2 fixedly connected to the top of the evaporator tank 1, a steam inlet pipe 3 fixedly connected to the top of the evaporator tank 1, a drain pipe 4 fixedly connected to the surface of the evaporator tank 1, and a valve 5 fixedly connected to the top of the drain pipe 4.

[0029] An installation frame 6 is fixedly connected to the bottom of the evaporator tank 1. A heat dissipation base plate 7 is inserted into the bottom of the installation frame 6. A motor 8 is snapped onto the top of the heat dissipation base plate 7. A drive shaft 9 is fixedly connected to the output end of the motor 8. A mixing frame 10 is fixedly connected to the surface of the drive shaft 9. A cleaning brush 11 is fixedly connected to the surface of the mixing frame 10. A fixed horizontal plate 12 is fixedly connected to the surface of the mixing frame 10. A mixing support plate 13 is slidably connected inside the fixed horizontal plate 12. A drain pipe 14 is fixedly connected to the bottom of the evaporator tank 1. By setting the surface of the cleaning brush 11 to contact the inner wall surface of the evaporator tank 1, and by equidistantly distributing several mixing frames 10 and cleaning brushes 11 around the drive shaft 9, this design allows the cleaning brushes 11 to fully cover the inner wall of the evaporator tank 1 when dealing with scale buildup. When the motor 8 drives the drive shaft 9 to rotate, the cleaning brushes 11 can effectively scrape off the scale on the inner wall of the evaporator tank 1, ensuring the heat transfer efficiency and normal operation of the evaporator.

[0030] Valve 5 is located on the front of the evaporator tank 1, which makes it convenient for operators to operate and monitor intuitively. During equipment operation, operators can easily open or close valve 5 as needed to control the drainage operation of drain pipe 4, which is very convenient for the normal operation and maintenance of the evaporator.

[0031] The feed pipe 2 is located at the left end of the steam inlet pipe 3, and the valve 5 is located on the front of the evaporator tank 1.

[0032] The feed pipe 2 is located at the left end of the steam inlet pipe 3. This layout helps to form a reasonable flow path between the material and the steam in the evaporator tank 1. During operation, the feed can be evaporated more efficiently under the action of steam, avoiding problems such as local overheating or uneven material mixing that may be caused by unreasonable feed and steam inlet positions.

[0033] The top of the motor 8 is in contact with the bottom surface of the evaporator tank 1, the heat dissipation base plate 7 is located at the bottom of the evaporator tank 1, and the drive shaft 9 is located inside the evaporator tank 1.

[0034] The drain pipe 14 is located at the right end of the mounting frame 6 and at the right end of the motor 8.

[0035] The drain pipe 14 is located at the right end of the mounting frame 6 and the right end of the motor 8. When it is necessary to discharge dirt or impurities from the evaporator tank 1, the position of the drain pipe 14 can ensure that the dirt is discharged smoothly under gravity and will not cause pollution or impact on key components such as the motor 8.

[0036] The number of mixing frames 10 and cleaning brushes 11 is set to several. The mixing frames 10 and cleaning brushes 11 are distributed equidistantly around the drive shaft 9. When the motor 8 drives the mixing frames 10 in conjunction with the drive shaft 9 inside the evaporator tank 1, the centrifugal force causes several mixing support plates 13 to slide back and forth inside the fixed horizontal plate 12. The driving of the mixing frames 10 improves the working efficiency of product mixing and cleaning inside the evaporator tank 1.

[0037] The surface of the cleaning brush 11 is in contact with the inner wall surface of the evaporator tank 1, and the mixing frame 10 is located inside the evaporator tank 1.

[0038] The number of hybrid support plates 13 is set to several, and each pair is a group. The several hybrid support plates 13 are distributed equidistantly around the drive shaft 9.

[0039] The implementation principle of the scale removal device for an MVR evaporator used in electrolytic aluminum ash treatment in this application embodiment is as follows: By setting the surface of the cleaning brush 11 to contact the inner wall surface of the evaporator tank 1, and distributing several mixing frames 10 and cleaning brush 11 equidistantly around the drive shaft 9, this design allows the cleaning brush 11 to fully cover the inner wall of the evaporator tank 1 when removing scale. When the motor 8 drives the drive shaft 9 to rotate, the cleaning brush 11 can effectively scrape off the scale on the inner wall of the evaporator tank 1, ensuring the heat transfer efficiency and normal operation of the evaporator. By setting the motor 8 and the drive shaft 9 to drive the mixing frame 10 inside the evaporator tank 1, the centrifugal force causes several mixing support plates 13 to slide back and forth inside the fixed horizontal plate 12. The driving of the mixing frame 10 improves the working efficiency of product mixing and cleaning inside the evaporator tank 1.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A device for treating scaling of an MVR evaporator for treatment of electrolytic aluminum dross, characterized by, Including the evaporator tank (1), the top of the evaporator tank (1) is fixedly connected with the feed pipe (2), the top of the evaporator tank (1) is fixedly connected with the steam inlet pipe (3), the surface of the evaporator tank (1) is fixedly connected with the liquid discharge pipe (4), the top of the liquid discharge pipe (4) is fixedly connected with the valve (5); The bottom of the evaporator tank (1) is fixedly connected with the mounting frame (6), the bottom of the mounting frame (6) is inserted with the heat dissipation bottom plate (7), the top of the heat dissipation bottom plate (7) is clamped with the motor (8), the output end of the motor (8) is fixedly connected with the transmission shaft (9), the surface of the transmission shaft (9) is fixedly connected with the mixing frame (10), the surface of the mixing frame (10) is fixedly connected with the cleaning brush plate (11), the surface of the mixing frame (10) is fixedly connected with the fixed horizontal plate (12), the inside of the fixed horizontal plate (12) is slidingly connected with the mixing branch plate (13), the bottom of the evaporator tank (1) is fixedly connected with the blowdown pipe (14).

2. A device for treating scale of an MVR evaporator for treating electrolytic aluminum dross according to claim 1, characterized in that: The feed pipe (2) is located at the left end of the steam inlet pipe (3), and the valve (5) is located at the front of the evaporator tank (1).

3. A device for treating scale of an MVR evaporator for treating electrolytic aluminum dross as claimed in claim 1, characterized by: The top of the motor (8) is in surface contact with the bottom of the evaporator tank (1), the heat dissipation bottom plate (7) is located at the bottom of the evaporator tank (1), and the transmission shaft (9) is located in the evaporator tank (1).

4. A device for treating scaling of an MVR evaporator for treatment of spent potliner according to claim 1, characterized in that: The blowdown pipe (14) is located at the right end of the mounting frame (6), and the blowdown pipe (14) is located at the right end of the motor (8).

5. A device for treating scale of an MVR evaporator for treating electrolytic aluminum dross as claimed in claim 1, characterized by: The number of the mixing frame (10) and the cleaning brush plate (11) is set to several, and several mixing frames (10) and cleaning brush plates (11) are distributed equidistantly around the transmission shaft (9) as the center.

6. A device for treating scale of an MVR evaporator for treating electrolytic aluminum dross as claimed in claim 1, characterized by: The surface of the cleaning brush plate (11) is in surface contact with the inner wall surface of the evaporator tank (1), and the mixing frame (10) is located in the evaporator tank (1).

7. A device for treating scale of an MVR evaporator for treating electrolytic aluminum dross as claimed in claim 1, characterized by: The number of the mixing branch plate (13) is set to several, and every two is a group, and several mixing branch plates (13) are distributed equidistantly around the transmission shaft (9) as the center.

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