Cooling device for aluminum trichloride production

Abstract

The utility model discloses a cooling device for aluminum trichloride production, which comprises a cooling tank, a stirring and crushing device is arranged in the cooling tank, and the stirring and crushing device comprises a stirring motor, a stirring shaft connected with an output shaft of the stirring motor and a plurality of stirring rods arranged on the stirring shaft, first crushing teeth are arranged on the stirring rod; a cooling coil pipe arranged on the outer side of the stirring and crushing device in a sleeving manner is further arranged in the cooling tank; the buffer tank is communicated with the air outlet of the cooling tank; the alkali liquor spraying tower is communicated with a gas outlet of the buffer tank, a spraying mechanism is arranged at the upper part of the alkali liquor spraying tower, and a gas inlet of the alkali liquor spraying tower is communicated with a porous gas distribution disc. According to the device, aluminum trichloride gas is cooled, meanwhile, aluminum trichloride generated by cooling can be smashed, the quality of aluminum trichloride powder is improved, gas escaped during cooling is effectively sprayed, and the production safety of aluminum trichloride is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a cooling device for producing aluminum chloride. Background Art

[0002] Aluminum chloride, also known as aluminum chloride, is an inorganic compound with very low melting and boiling points, and it can sublimate and is a covalent compound. Aluminum chloride is mainly used in Friedel-Crafts reaction, for example, anthraquinone is prepared from benzene and phosgene as raw materials, and is used in dyeing and finishing industry. Aluminum chloride is mainly produced by the reaction of molten aluminum ingot and chlorine at high temperature, and the generated aluminum chloride sublimates at high temperature, and the sublimated aluminum chloride gas is cooled again. At present, the main problems of the device for producing aluminum chloride are as follows: when the aluminum chloride gas is cooled in the tank, some solids will adhere to the inner wall, which requires a knocking operation. The aluminum chloride shaken off by the knocking furnace is in block form, with different particle sizes, and needs to be further crushed. The above operation will cause certain damage to the device, and the production is more complicated, which will cause hydrogen chloride and chlorine gas to escape, thereby causing environmental pollution. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in view of the shortcomings of the prior art, a cooling device for aluminum chloride production is provided to solve the problems existing in the background technology. The device can not only cool the aluminum chloride gas, but also crush the aluminum chloride produced by cooling to improve the quality of the aluminum chloride powder. The gas escaped during cooling is effectively sprayed to ensure the production safety of aluminum chloride.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A cooling device for aluminum chloride production, comprising:

[0006] A cooling tank, wherein a stirring and crushing device is arranged in the cooling tank, wherein the stirring and crushing device comprises a stirring motor, a stirring shaft connected to the output shaft of the stirring motor, and a plurality of stirring rods arranged on the stirring shaft, wherein the stirring rods are provided with first crushing teeth; and a cooling coil sleeved on the outside of the stirring and crushing device is also arranged in the cooling tank;

[0007] A buffer tank, wherein the buffer tank is connected to a gas outlet of the cooling tank;

[0008] An alkali liquid spray tower is connected to the gas outlet of the buffer tank, a spray mechanism is arranged on the upper part of the alkali liquid spray tower, and an air inlet of the alkali liquid spray tower is connected to a porous air distribution disk.

[0009] As an improved technical solution, a plurality of second crushing teeth are provided on the surface of the cooling coil.

[0010] As an improved technical solution, the upper part and the lower part of the cooling tank are respectively provided with an aluminum chloride gas inlet and a cooling air inlet.

[0011] As an improved technical solution, a plurality of downwardly inclined porous baffles are provided on the inner wall of the buffer tank.

[0012] As a preferred technical solution, a plurality of porous baffles are arranged in a cross-staggered manner.

[0013] As an improved technical solution, the air outlet of the alkali solution spray tower is also connected to a water spray tower, the air inlet of the water spray tower is also connected to a porous air distribution disk, and a spray mechanism is also provided on the top of the water spray tower.

[0014] As an improved technical solution, the spray mechanism includes a spray plate, and the liquid outlet at the bottom of the water spray tower is connected to the spray plate through a circulation pipeline and a circulation pump.

[0015] As an improved technical solution, a plurality of spoiler teeth are provided at the air outlet of the porous air distribution disk.

[0016] As an improved technical solution, an activated carbon filler layer is also provided in the water spray tower and the alkali solution spray tower respectively.

[0017] As an improved technical solution, the air outlet of the water spray tower is connected to the exhaust pipe through a fan.

[0018] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] The utility model provides a cooling device for aluminum chloride production, including a connected cooling tank, a buffer tank, an alkali solution spray tower, a water spray tower and an exhaust pipe. The sublimated aluminum chloride gas is cooled in the cooling tank to obtain aluminum chloride solid, and the hydrogen chloride gas and chlorine gas entrained in the aluminum chloride gas enter the buffer tank to separate the entrained aluminum chloride dust, and then enter the alkali solution spray tower and the water spray tower in turn for treatment, and then discharged into the atmosphere through the exhaust pipe. The above arrangement can not only obtain aluminum chloride powder, but also effectively treat harmful gases to prevent them from polluting the atmosphere.

[0020] A stirring and crushing device is arranged in the cooling tank of the device, and the cooled aluminum chloride powder is crushed by arranging a first crushing tooth on the stirring rod. A cooling coil is also arranged in the cooling tank of the device, and a plurality of second crushing teeth are arranged on the surface of the cooling coil. The second crushing teeth cooperate with the first crushing teeth to further improve the crushing efficiency and ensure the quality of the aluminum chloride powder.

[0021] The air inlets of the alkali liquid spray tower and the water spray tower of the device are both connected to a porous air distribution disk, and a plurality of spoiler teeth are provided at the air outlet of the porous air distribution disk, so that the gas can enter the alkali liquid spray tower or the water spray tower more evenly, thereby improving the gas absorption efficiency.

[0022] The device also has a cooling air inlet at the bottom of the cooling tank. By introducing cold air into the cooling tank, on the one hand, it can play a cooling role, and on the other hand, it can better remove harmful gases entrained by aluminum chloride gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0025] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0026] In the figure, 1. cooling tank; 2. stirring motor; 3. stirring shaft; 4. stirring rod; 5. first crushing tooth; 6. cooling coil; 7. aluminum chloride gas inlet; 8. cooling air inlet; 9. buffer tank; 10. alkali solution spray tower; 11. porous air distribution plate; 12. water spray tower; 13. fan; 14. exhaust pipe; 15. discharge port; 16. second crushing tooth; 17. porous baffle; 18. slag discharge port; 19. spray plate; 20. circulation pipeline; 21. circulation pump; 22. spoiler tooth; 23. activated carbon filler layer; 24. water inlet pipe; 25. water outlet pipe. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0030] Example 1

[0031] like Figure 1 and Figure 2 As shown, a cooling device for aluminum chloride production includes:

[0032] A cooling tank 1, wherein a stirring and crushing device is arranged in the cooling tank 1, wherein the stirring and crushing device comprises a stirring motor 2, a stirring shaft 3 connected to the output shaft of the stirring motor 2, and a plurality of stirring rods 4 arranged on the stirring shaft 3, wherein the stirring rods 4 are provided with first crushing teeth 5; a cooling coil 6 sleeved on the outside of the stirring and crushing device is also arranged in the cooling tank 1; an aluminum chloride gas inlet 7 and a cooling air inlet 8 are also respectively arranged at the upper and lower parts of the cooling tank 1;

[0033] A buffer tank 9, wherein the buffer tank 9 is connected to the gas outlet of the cooling tank 1;

[0034] An alkali solution spray tower 10, wherein the alkali solution spray tower 10 is connected to the gas outlet of the buffer tank 9, a spray mechanism is provided at the upper portion of the alkali solution spray tower 10, and an air inlet of the alkali solution spray tower 10 is connected to a porous air distribution disk 11;

[0035] A water spray tower 12 is connected to the air outlet of the alkali solution spray tower 10, and the air inlet of the water spray tower 12 is also connected to a porous air distribution plate 11. A spray mechanism is also provided on the top of the water spray tower 12. The air outlet of the water spray tower 12 is connected to an exhaust pipe 14 through a fan 13.

[0036] Specifically, through the above technical scheme, the sublimated aluminum chloride gas enters the cooling tank 1, and cooling water is circulated into the cooling coil 6 through the water inlet pipe 24 and the water outlet pipe 25 for cooling, and cooling air is introduced into the cooling tank 1 through the cooling air inlet 8. The aluminum chloride solid obtained by cooling is preliminarily crushed under the action of the stirring and crushing device, and the crushed aluminum chloride powder is discharged through the discharge port 15 at the bottom of the cooling tank 1. The introduced cooling air not only plays a role in cooling, but also can take out the hydrogen chloride gas and chlorine gas entrained in the aluminum chloride; the gas escaping from the cooling tank 1 enters the buffer tank 9, and the aluminum chloride dust entrained in the gas can be effectively separated during the rising process of the gas. The separated gas enters the alkali solution spray tower 10 and the water spray tower 12 in turn for absorption treatment, and the treated gas is discharged into the atmosphere through the exhaust pipe.

[0037] Furthermore, in this embodiment, a plurality of second crushing teeth 16 are provided on the surface of the cooling coil 6. When the stirring and crushing device is stirring, the mutual cooperation of the stirring rod 4, the first crushing teeth 5 and the second crushing teeth 16 greatly improves the crushing efficiency of the aluminum chloride solid, thereby improving the quality of the aluminum chloride.

[0038] Furthermore, in this embodiment, a plurality of downwardly inclined porous baffles 17 are provided on the inner wall of the buffer tank 9, and the plurality of porous baffles 17 are arranged crosswise and staggered. The gas escaping from the cooling tank 1 will carry a small amount of aluminum chloride dust, and after entering the buffer tank 9, it will contact with the plurality of porous baffles 17 during the rising process, so that a small amount of aluminum chloride dust is separated, and after the end, it is discharged and recovered from the slag discharge port 18 at the bottom of the buffer tank 9.

[0039] As an improved technical solution, the spray mechanism includes a spray plate 19 , and the liquid outlet at the bottom of the water spray tower 12 is connected to the spray plate 19 through a circulation pipe 20 and a circulation pump 21 .

[0040] Furthermore, in this embodiment, a plurality of spoiler teeth 22 are provided at the air outlet of the porous air distribution disk 11 .

[0041] Furthermore, in this embodiment, an activated carbon filler layer 23 is also provided in the water spray tower 12 and the alkali solution spray tower 10 respectively.

[0042] In addition, it should be understood that after reading the contents taught in the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A cooling device for aluminum chloride production, characterized in that: include: A cooling tank, wherein a stirring and crushing device is arranged in the cooling tank, wherein the stirring and crushing device comprises a stirring motor, a stirring shaft connected to the output shaft of the stirring motor, and a plurality of stirring rods arranged on the stirring shaft, wherein the stirring rods are provided with first crushing teeth; and a cooling coil sleeved on the outside of the stirring and crushing device is also arranged in the cooling tank; A buffer tank, wherein the buffer tank is connected to a gas outlet of the cooling tank; An alkali liquid spray tower is connected to the gas outlet of the buffer tank, a spray mechanism is arranged on the upper part of the alkali liquid spray tower, and an air inlet of the alkali liquid spray tower is connected to a porous air distribution disk.

2. A cooling device for aluminum chloride production according to claim 1, characterized in that: A plurality of second crushing teeth are arranged on the surface of the cooling coil.

3. A cooling device for aluminum chloride production according to claim 1, characterized in that: The upper part and the lower part of the cooling tank are also provided with an aluminum chloride gas inlet and a cooling air inlet respectively.

4. A cooling device for aluminum chloride production according to claim 1, characterized in that: A plurality of downwardly inclined porous baffles are arranged on the inner wall of the buffer tank.

5. A cooling device for aluminum chloride production according to claim 4, characterized in that: A plurality of porous baffles are arranged in a cross-staggered manner.

6. A cooling device for aluminum chloride production according to claim 1, characterized in that: The air outlet of the alkali solution spray tower is also connected to a water spray tower, the air inlet of the water spray tower is also connected to a porous air distribution disk, and a spray mechanism is also arranged on the top of the water spray tower.

7. A cooling device for aluminum chloride production according to claim 6, characterized in that: The spray mechanism comprises a spray plate, and the liquid outlet at the bottom of the water spray tower is connected with the spray plate through a circulation pipeline and a circulation pump.

8. A cooling device for aluminum chloride production according to claim 6, characterized in that: A plurality of spoiler teeth are arranged at the air outlet of the porous air distribution disk.

9. A cooling device for aluminum chloride production according to claim 6, characterized in that: Activated carbon filling layers are also arranged in the water spray tower and the alkali solution spray tower respectively.

10. A cooling device for aluminum chloride production according to claim 6, characterized in that: The air outlet of the water spray tower is connected to the exhaust pipe through the fan.

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