Alumina leach flash tank

Abstract

The utility model discloses an alumina dissolution flash tank, including the flash tank, the bottom of flash tank is equipped with the discharge gate, the middle part side wall of flash tank is equipped with the feed port, be equipped with the anti -blocking spare in the discharge gate, the bottom of flash tank is equipped with the heating spare outside the sleeve, the top of flash tank is detachably equipped with the tank cover, be equipped with the exhaust port on the tank cover. The utility model belongs to the technical field of flash tank, and specifically refers to an alumina dissolution flash tank.

Description

Technical Field

[0001] This utility model belongs to the field of flash evaporation technology, specifically referring to an alumina dissolution flash evaporation tank. Background Technology

[0002] The alumina leaching process is a key step in alumina production. Its core equipment, the flash evaporation tank, is used to flash-cool the high-temperature, high-pressure sodium aluminate solution to achieve the leaching reaction and separation objectives.

[0003] Because the material is highly viscous or contains solid particles during the alumina leaching process, the discharge port is prone to blockage, affecting production efficiency. Traditional discharge port structures lack effective anti-blockage measures. Utility Model Content

[0004] The technical problem this invention aims to solve is that during the alumina leaching process, the material has high viscosity or contains solid particles, which easily leads to blockage of the discharge port and affects production efficiency.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: an alumina leaching flash evaporation tank, including a flash evaporation tank, a discharge port at the bottom of the flash evaporation tank, a feed port on the middle side wall of the flash evaporation tank, an anti-blocking component inside the discharge port, a heating component sleeved on the bottom of the flash evaporation tank, and a detachable tank cover at the top of the flash evaporation tank, with an exhaust port on the tank cover.

[0006] Preferably, the anti-blocking component includes a drive motor, a rotating shaft, and blades. The two ends of the rotating shaft are rotatably disposed on the inner sidewall of the discharge port. The drive motor is disposed on the sidewall of the discharge port, and its output end rotatably passes through the discharge port and is connected to the rotating shaft. The blades are disposed on the rotating shaft and are provided in several groups.

[0007] Preferably, the discharge port is cylindrical and the blade is semi-circular.

[0008] Preferably, the heating element includes a fixing sleeve, which is fitted onto the bottom of the flash tank and leaves a gap between the fixing sleeve and the flash tank. A heating wire is wound in the gap and wound around the flash tank. A temperature sensor is provided inside the flash tank, and a controller is provided on the outer wall of the flash tank. The controller and the temperature sensor are electrically connected.

[0009] Preferably, the inner bottom of the flash tank is provided with several columns, and the columns are provided with umbrella-shaped anti-impact covers, which are located above the discharge port.

[0010] Preferably, the tank cover is fixed to the top of the flash tank by bolts.

[0011] The beneficial effects achieved by adopting the above-described structure are as follows:

[0012] The anti-clogging component, driven by the motor to rotate the shaft and blades, effectively prevents the discharge port from becoming blocked, ensuring smooth material discharge and improving production efficiency. The semi-circular blade structure is compatible with the cylindrical discharge port structure, which can better mix and guide the material.

[0013] Heating wires are wound in the gap between the fixed sleeve and the bottom of the flash tank, which can quickly heat the flash tank and effectively improve the alumina dissolution rate. The temperature sensor inside the flash tank is electrically connected to the controller on the outer wall, which can realize temperature control.

[0014] The uprights and umbrella-shaped shock absorbers installed at the bottom of the flash tank can effectively buffer the impact of the material on the discharge port during feeding, reduce the wear of the discharge port and surrounding parts, extend the service life of the equipment, and reduce equipment replacement costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 A cross-sectional view of an embodiment of this utility model. Figure 1 ;

[0017] Figure 3 A cross-sectional view of an embodiment of this utility model. Figure 2 ;

[0018] Figure 4 This is a perspective view of an embodiment of the present utility model.

[0019] Among them, 1. flash tank, 2. flash tank, 3. feed inlet, 4. anti-clogging component, 5. heating component, 6. tank cover, 7. exhaust port, 8. drive motor, 9. rotating shaft, 10. blade, 11. fixing sleeve, 12. heating wire, 13. temperature sensor, 14. controller, 15. column, 16. impact protection cover. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-4 As shown, this utility model proposes an alumina leaching flash evaporation tank, including a flash evaporation tank 1. The bottom of the flash evaporation tank 1 is provided with a discharge port 2, and the middle side wall of the flash evaporation tank 1 is provided with a feed port 3. An anti-blocking component 4 is provided inside the discharge port 2. A heating component 5 is sleeved on the outside of the bottom of the flash evaporation tank 1. The top of the flash evaporation tank 1 is detachably provided with a tank cover 6. The tank cover 6 is fixed to the top of the flash evaporation tank 1 by bolts. The tank cover 6 is provided with an exhaust port 7. The exhaust port 7 can timely discharge the steam and gas generated during the flash evaporation process, avoid the pressure inside the tank from rising, and ensure operational safety. By setting the anti-blocking component 4 in the discharge port 2, the material can be stirred in real time to prevent material accumulation and blockage, and ensure smooth discharge.

[0023] like Figure 3 As shown, the anti-blocking component 4 includes a drive motor 8, a rotating shaft 9, and blades 10. The two ends of the rotating shaft 9 are rotatably mounted on the inner sidewall of the discharge port 2. The drive motor 8 is mounted on the sidewall of the discharge port 2, and its output end rotatably passes through the discharge port 2 and is connected to the rotating shaft 9. The blades 10 are mounted on the rotating shaft 9 and are arranged in several groups. The discharge port 2 is cylindrical, and the blades 10 are semi-circular. The semi-circular structure of the blades 10 reduces the resistance to material flow and avoids excessive shearing of the material.

[0024] like Figure 2 and 4 As shown, the heating element 5 includes a fixing sleeve 11, which is fitted onto the bottom of the flash tank 1 with a gap between it and the flash tank 1. A heating wire 12 is wound in the gap and wound around the flash tank 1. A temperature sensor 13 is provided inside the flash tank 1. A controller 14 is provided on the outer wall of the flash tank 1. The controller 14 and the temperature sensor 13 are electrically connected. The heating wire 12 is directly wound around the flash tank 1, resulting in high heat transfer efficiency.

[0025] like Figure 3As shown, the inner bottom of the flash tank 1 is provided with several columns 15, and the columns 15 are provided with umbrella-shaped anti-impact covers 16. The anti-impact covers 16 are located above the discharge port 2. The umbrella-shaped anti-impact covers 16 located above the discharge port 2 can disperse the flow of materials, reduce the direct impact on the stirring blades 10 and the inner wall of the discharge port 2, and extend the service life of the equipment.

[0026] In practical use, the material to be dissolved is conveyed into the flash tank 1 through the feed port 3 on the middle side wall of the flash tank 1. The heating element 5 is started, and a suitable temperature is set on the controller 14 according to the production requirements. The heating wire 12 starts to work and heats the material in the flash tank 1. The temperature sensor 13 monitors the temperature in the tank in real time and feeds the data back to the controller 14 to realize the temperature regulation.

[0027] During the heating process, the material undergoes flash evaporation, and the generated steam and gas are discharged through the exhaust port 7 at the top. After the flash evaporation is complete, the drive motor 8 is turned on, which drives the rotating shaft 9 and the paddle 10 to rotate, stirring the material at the discharge port 2 to prevent blockage and ensure smooth discharge from the discharge port 2. Due to the semi-circular structure design of the paddle 10, smooth discharge is ensured while protecting the quality of the material. Throughout the discharge process, the umbrella-shaped impact shield 16 disperses the material flow, reducing the impact of the material on the paddle 10 and the inner wall of the discharge port 2.

[0028] The interior of the flash tank 1 is regularly inspected, cleaned, and maintained by removing the tank cover 6.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An alumina elution flash tank characterized by: The flash evaporator includes a flash tank (1), the bottom of which is provided with a discharge port (2), the middle side wall of which is provided with a feed port (3), the discharge port (2) is provided with an anti-blocking component (4), the bottom of which is covered with a heating component (5), the top of which is provided with a detachable tank cover (6), and the tank cover (6) is provided with an exhaust port (7).

2. An alumina elution flash tank according to claim 1, characterised in that: The anti-blocking component (4) includes a drive motor (8), a rotating shaft (9), and a blade (10). The two ends of the rotating shaft (9) are rotatably disposed on the inner side wall of the discharge port (2). The drive motor (8) is disposed on the side wall of the discharge port (2), and its output end rotates through the discharge port (2) and is connected to the rotating shaft (9). The blade (10) is disposed on the rotating shaft (9) and is provided in several groups.

3. An alumina elution flash tank according to claim 2, characterised in that: The discharge port (2) is cylindrical, and the blade (10) is semi-circular.

4. The alumina elution flash tank of claim 1, wherein: The heating element (5) includes a fixing sleeve (11), which is fitted around the bottom of the flash tank (1) and leaves a gap between it and the flash tank (1). A heating wire (12) is wound in the gap and wound around the flash tank (1). A temperature sensor (13) is provided inside the flash tank (1). A controller (14) is provided on the outer wall of the flash tank (1). The controller (14) and the temperature sensor (13) are electrically connected.

5. The alumina elution flash tank of claim 1, wherein: The inner bottom of the flash tank (1) is provided with several columns (15), and the columns (15) are provided with umbrella-shaped anti-impact covers (16), which are located above the discharge port (2).

6. An alumina elution flash tank according to claim 1, characterised in that: The tank cover (6) is fixed to the top of the flash tank (1) by bolts.

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