CN212639972U - Fluidization combination device for producing aluminum fluoride - Google Patents

Abstract

The utility model discloses a fluidization combination device for producing aluminum fluoride, which comprises a fluidized bed, a first dust removal device and a second dust removal device, wherein a bottom bed and a top bed are arranged inside the fluidized bed, the peripheral edges of the bottom bed and the top bed are fixedly connected with the inner wall of the fluidized bed, a plurality of hoods are arranged at the bottoms of the bottom bed and the top bed, a top cavity, an upper reaction cavity, a lower reaction cavity and a bottom cavity are sequentially arranged inside the fluidized bed from top to bottom, powder transition devices are arranged at the two ends of the upper reaction cavity, a top bed discharge hole is fixedly connected at one side of the upper reaction cavity, a bottom bed feed hole is fixedly connected at one side of the lower reaction cavity, a spiral conveying device is arranged between the top bed discharge hole and the bottom bed feed hole, the two ends of the spiral conveying device are respectively fixedly connected with the top bed discharge hole and the bottom bed feed hole, and the fluidization combination device for producing aluminum fluoride can complete all processes of producing, the structure is complete, other equipment is not needed, and the working efficiency is effectively improved.

Description

Fluidization combination device for producing aluminum fluoride

Technical Field

The utility model relates to an aluminium fluoride production technical field specifically is production fluidization composite set for aluminium fluoride.

Background

When aluminum fluoride is produced by a dry method, a fluidized bed is a core device in the production process flow of the aluminum fluoride by the dry method, and is a reaction device for realizing gas-solid reaction of hydrogen fluoride gas and aluminum hydroxide to generate aluminum fluoride, the traditional fluidized bed for producing the aluminum fluoride is a double-layer fluidized bed, a material returning device from a top bed to a bottom bed is controlled by an overflow pipe from a top bed discharge port to a bottom bed feed port, when the overflow pipe breaks down, the overflow pipe must be stopped for maintenance, so that the normal production is influenced, a boiling device in the fluidized bed usually adopts a hood, but the structure of the hood is different, and various problems exist, for example, the hood is independently arranged for the hood, a large-area seam also exists, the seam also becomes a fragile area and is very easy to erode and corrode by hydrogen fluoride to crack, so that the requirements of people on the.

Disclosure of Invention

An object of the utility model is to provide a production fluidization composite set for aluminium fluoride can accomplish all processes of production aluminium fluoride fluidization, and is complete in structure, need not reuse other equipment, effectual improvement work efficiency to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the fluidization combination device for producing aluminum fluoride comprises a fluidized bed, a first dust removal device and a second dust removal device, wherein a bottom bed and a top bed are arranged inside the fluidized bed, the peripheral edges of the bottom bed and the top bed are fixedly connected with the inner wall of the fluidized bed, a plurality of air hoods are arranged at the bottom of the bottom bed and the bottom of the top bed, a top cavity, an upper reaction cavity, a lower reaction cavity and a bottom cavity are sequentially arranged inside the fluidized bed from top to bottom, powder transition devices are arranged at the two ends of the upper reaction cavity, a top bed discharge hole is fixedly connected to one side of the upper reaction cavity, a bottom bed feed hole is fixedly connected to one side of the lower reaction cavity, a spiral conveying device is arranged between the top bed discharge hole and the bottom bed feed hole, the two ends of the spiral conveying device are fixedly connected with the top bed discharge hole and the bottom bed feed hole respectively, a conveying pipe is arranged inside the, the fluidized bed low side is the first cooling tank of fixedly connected with and the second cooling tank from top to bottom in proper order, just the first connecting pipe of fluidized bed top fixedly connected with, the first dust collector of first connecting pipe one end fixedly connected with, first dust collector top fixedly connected with second connecting pipe, second connecting pipe one end fixedly connected with second dust collector, just the equal fixedly connected with discharging pipe in first dust collector and second dust collector bottom, reaction chamber one side intercommunication has the inlet pipe under the fluidized bed, the discharging pipe all communicates with the inlet pipe.

Furthermore, the blast cap comprises a cap top and a body, the cap top is connected with the body in a sealing mode, and a plurality of air holes are formed in the surface of the body.

Further, inlet pipe bottom fixedly connected with third connecting pipe, just all be equipped with the valve on inlet pipe and the third connecting pipe.

Furthermore, one side of the discharge hole of the top bed is communicated with a blowing device.

Furthermore, the powder transition device comprises a fluidization cup and an air inlet pipe, a conveying pipe is fixedly connected to the inner wall of one side of the fluidization cup, one end of the conveying pipe extends to the outer side of the fluidized bed, and the air inlet pipe is fixedly connected with the bottom of the fluidization cup.

Furthermore, one end of the conveying pipe is communicated with a gas collection cavity, and a plurality of branch pipes are uniformly distributed at the top end of the gas collection cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

carry out endothermic reaction in last reaction intracavity portion, carry out exothermic reaction in the reaction intracavity under, through setting up first dust collector and second dust collector, retrieve the powder that the reaction produced in the fluidized bed and filter the recycle, through setting up screw conveyor, when breaking down, the easy access, through setting up the crown and body into seal structure, reduce its corruption and fracture, and the device can reduce the emission of waste material, reduction in production cost can reduce the pollution to the environment.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the fluidized bed of the present invention;

FIG. 3 is a schematic structural view of the hood of the present invention;

reference numbers in the figures: 1. a fluidized bed; 2. a first dust removing device; 3. a second dust removing device; 4. a bottom bed; 5. carrying out top bed; 6. a hood; 7. a top chamber; 8. an upper reaction chamber; 9. a lower reaction chamber; 10. a bottom cavity; 11. a powder transition device; 12. a top bed discharge port; 13. a bottom bed feed inlet; 14. a screw conveyor; 15. a delivery pipe; 16. a first cooling tank; 17. a second cooling tank; 18. a first connecting pipe; 19. a gas collection cavity; 20. a second connecting pipe; 21. a delivery pipe; 22. a discharge pipe; 23. a feed pipe; 24. a crown; 25. a body; 26. a wind hole; 27. a third connecting pipe; 28. a valve; 29. a blowing device; 30. a fluidization cup; 31. an air inlet pipe.

Detailed Description

The present invention will be further described with reference to the following embodiments, wherein the drawings are for illustrative purposes only and are not intended to be limiting, and in order to better illustrate the embodiments of the present invention, some components of the drawings may be omitted, enlarged or reduced and do not represent the size of an actual product.

As shown in fig. 1-3, the fluidized combination device for producing aluminum fluoride comprises a fluidized bed 1, a first dust removal device 2 and a second dust removal device 3, wherein a bottom bed 4 and a top bed 5 are arranged inside the fluidized bed 1, the edges of the periphery of the bottom bed 4 and the periphery of the top bed 5 are fixedly connected with the inner wall of the fluidized bed 1, a plurality of hoods 6 are arranged at the bottoms of the bottom bed 4 and the top bed 5, a top cavity 7, an upper reaction cavity 8, a lower reaction cavity 9 and a bottom cavity 10 are sequentially arranged inside the fluidized bed 1 from top to bottom, an endothermic reaction is carried out inside the upper reaction cavity 8, an exothermic reaction is carried out in the lower reaction cavity 9, powder transition devices 11 are arranged at two ends of the upper reaction cavity 8, a top bed discharge port 12 is fixedly connected to one side of the upper reaction cavity 8, a bottom bed feed port 13 is fixedly connected to one side of the lower reaction cavity 9, a spiral conveying device 14 is arranged between the top bed discharge port 12 and, when a fault occurs, the maintenance is convenient, two ends of the spiral conveying device 14 are fixedly connected with a top bed discharge port 12 and a bottom bed feed port 13 respectively, a conveying pipe 15 is arranged inside the bottom cavity 10, one end of the conveying pipe 15 extends to the outer side of the fluidized bed 1, the lower end of the fluidized bed 1 is fixedly connected with a first cooling tank 16 and a second cooling tank 17 from top to bottom in sequence, the condensed hydrogen fluoride is discharged in a sealed manner, the top end of the fluidized bed 1 is fixedly connected with a first connecting pipe 18, one end of the first connecting pipe 18 is fixedly connected with a first dust removal device 2, the top end of the first dust removal device 2 is fixedly connected with a second connecting pipe 20, one end of the second connecting pipe 20 is fixedly connected with a second dust removal device 3, powder generated by reaction in the fluidized bed 1 is recycled, and discharge pipes 22 are fixedly connected to the bottom ends of the first dust removal device 2 and the second, one side of the reaction chamber 9 under the fluidized bed 1 is communicated with a feeding pipe 23, and the discharging pipes 22 are communicated with the feeding pipe 23.

More specifically, the blast cap 6 comprises a cap top 24 and a body 25, the cap top 24 and the body 25 are connected in a sealing way, the corrosion and the cracking of the cap top are reduced, a plurality of air holes 26 are formed on the surface of the body 25, a third connecting pipe 27 is fixedly connected to the bottom of the feeding pipe 23, and the feeding pipe 23 and the third connecting pipe 27 are both provided with valves 28, one side of the top bed discharge port 12 is communicated with a blowing device 29 for facilitating the discharge and conveying of the top bed 5, the powder transition device 11 comprises a fluidization cup 30 and an air inlet pipe 31, wherein the inner wall of one side of the fluidization cup 30 is fixedly connected with a material conveying pipe 21, one end of the material conveying pipe 21 extends to the outer side of the fluidized bed 1, the air inlet pipes 31 are fixedly connected with the bottom of the fluidization cup 30, one end of the conveying pipe 15 is communicated with the air collection cavity 19, a plurality of branch pipes are uniformly distributed at the top end of the gas collection cavity 19, so that the hydrogen fluoride can uniformly enter the fluidized bed 1.

The working principle is as follows: this kind of production is fluidization composite set for aluminium fluoride, through conveyer pipe 15, make hydrogen fluoride gas get into fluidized bed 1, through being connected intake pipe 31 and outside air feeder, make various raw materials react in fluidized bed 1 inside, the dust that the reaction produced is discharged by the first connecting pipe 18 in top, it filters with the second filter to get into first filter, discharge port from the second filter after partial dust filters, partial dust gets back to fluidized bed 1 internal recycling through inlet pipe 23 after filtering, unreacted hydrogen fluoride seals the condensation and discharges after through first cooling tank 16 and second cooling tank 17.

Although particular embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Production fluidization composite set for aluminium fluoride, including fluidized bed (1) and first dust collector (2), second dust collector (3), its characterized in that: fluidized bed (1) is inside to be equipped with end bed (4) and top bed (5), end bed (4) and top bed (5) all link to each other with fluidized bed (1) inner wall is fixed all around along, just end bed (4) all are equipped with a plurality of hood (6) with top bed (5) bottom, fluidized bed (1) is inside from top to bottom to be equipped with in proper order top chamber (7), go up reaction chamber (8), lower reaction chamber (9) and end chamber (10), it all is equipped with powder transition ware (11) to go up reaction chamber (8) both ends, just go up reaction chamber (8) one side fixedly connected with top bed discharge gate (12), reaction chamber (9) one side fixedly connected with end bed feed inlet (13) down, be equipped with spiral conveyor (14) between top bed discharge gate (12) and end bed feed inlet (13), spiral conveyor (14) both ends respectively with top bed discharge gate (12), Bottom bed feed inlet (13) is fixed and connected, conveyer pipe (15) is arranged inside bottom chamber (10), one end of conveyer pipe (15) extends to the outside of fluidized bed (1), fluidized bed (1) low side is fixedly connected with first cooling tank (16) and second cooling tank (17) from top to bottom in proper order, just fluidized bed (1) top fixedly connected with first connecting pipe (18), first connecting pipe (18) one end fixedly connected with first dust collector (2), first dust collector (2) top fixedly connected with second connecting pipe (20), second connecting pipe (20) one end fixedly connected with second dust collector (3), just equal fixedly connected with discharging pipe (22) in first dust collector (2) and second dust collector (3) bottom, fluidized bed (1) lower reaction chamber (9) one side intercommunication has inlet pipe (23), the discharge pipes (22) are communicated with the feed pipes (23).

2. The fluidization combination apparatus for producing aluminum fluoride according to claim 1, wherein: the blast cap (6) comprises a cap top (24) and a body (25), the cap top (24) is connected with the body (25) in a sealing mode, and a plurality of blast holes (26) are formed in the surface of the body (25).

3. The fluidization combination apparatus for producing aluminum fluoride according to claim 1, wherein: inlet pipe (23) bottom fixedly connected with third connecting pipe (27), just all be equipped with valve (28) on inlet pipe (23) and third connecting pipe (27).

4. The fluidization combination apparatus for producing aluminum fluoride according to claim 1, wherein: one side of the top bed discharge port (12) is communicated with a blowing device (29).

5. The fluidization combination apparatus for producing aluminum fluoride according to claim 1, wherein: powder transition ware (11) are including fluidization cup (30) and intake pipe (31), fluidization cup (30) one side inner wall fixedly connected with conveying pipeline (21), conveying pipeline (21) one end all extends to the fluidized bed (1) outside, just intake pipe (31) all with fluidization cup (30) bottom fixed linking to each other.

6. The fluidization combination apparatus for producing aluminum fluoride according to claim 1, wherein: one end of the conveying pipe (15) is communicated with a gas collection cavity (19), and a plurality of branch pipes are uniformly distributed at the top end of the gas collection cavity (19).

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