CN214570736U

CN214570736U - Defluorination device for producing anhydrous hydrogen fluoride by phosphoric acid byproduct fluosilicic acid

Info

Publication number: CN214570736U
Application number: CN202022410507.8U
Authority: CN
Inventors: 盛国臣; 陈维; 赵英刚; 吴强豪; 池涛涛; 杨忠利
Original assignee: Guizhou Wengfu Kaifu Fluorosilicon New Material Co ltd
Current assignee: Guizhou Wengfu Kaifu Fluorosilicon New Material Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-11-02
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a defluorination device for producing anhydrous hydrogen fluoride by phosphoric acid byproduct fluosilicic acid, which belongs to the field of filtration and purification and comprises a defluorination chamber, a motor, a first bearing seat, a square stirring plate, a second bearing seat, a rotating shaft, a first gas outlet pipeline, a defluorination chamber and a second gas outlet pipeline; a purified liquid box is arranged above the outer part of the defluorination chamber, a first liquid inlet is arranged above the purified liquid box, alkaline solution is contained in the purified liquid box, a guide pipe is arranged below the purified liquid box, the guide pipe penetrates through the upper inner wall of the defluorination chamber, and a spray head is arranged at the lower end of the guide pipe; the middle position on the outer right side of the defluorination chamber is provided with a support plate, a motor is arranged above the support plate, the inner wall of the left side of the middle position inside the defluorination chamber is provided with a first bearing seat, and the right side of the first bearing seat is connected with the rotating shaft. The utility model discloses set up pivot, square stirring board and venthole, the area of contact of increase raw materials and alkaline solution improves defluorination efficiency, has promoted the purity of product.

Description

Defluorination device for producing anhydrous hydrogen fluoride by phosphoric acid byproduct fluosilicic acid

Technical Field

The utility model belongs to the filtration purification field specifically is a defluorination device of anhydrous hydrogen fluoride of phosphoric acid accessory substance fluosilicic acid production.

Background

In industry, the hydrogen fluoride has wide application, because the chemical property of the hydrogen fluoride is very active, the hydrogen fluoride can react with a plurality of compounds, the hydrogen fluoride is a basic chemical product, anhydrous hydrogen fluoride is a raw material for producing fluorine by electrolysis, a phosphoric acid by-product fluosilicic acid is needed in the production process of the hydrogen fluoride, fluorine-containing waste gas is generated in a series of chemical reaction processes, fluorine is one of trace elements of human bodies, if the amount of the fluorine taken for a long time is too large, great harm can be caused to the human bodies, no matter animals or plants, the fluorine taken for a long time can cause great influence, the current main methods for purifying the fluorine-containing waste gas comprise a water absorption method, an alkali liquor absorption purification method, an adsorption purification method and the like, but the defluorination efficiency of some existing defluorination devices is low, the defluorination is insufficient, the purity of the raw material can not meet the requirement of industrial production, and some devices only defluorination the raw material, it was not dried and could not be used directly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a defluorination device for producing anhydrous hydrogen fluoride by phosphoric acid byproduct fluosilicic acid comprises a defluorination chamber, a motor, a first bearing seat, a square stirring plate, a second bearing seat, a rotating shaft, a first gas outlet pipeline, a drying chamber and a second gas outlet pipeline; a purified liquid box is arranged above the outer part of the defluorination chamber, a first liquid inlet is arranged above the purified liquid box, alkaline solution is contained in the purified liquid box, a guide pipe is arranged below the purified liquid box, the guide pipe penetrates through the upper inner wall of the defluorination chamber, and a spray head is arranged at the lower end of the guide pipe; a support plate is arranged in the middle of the right side outside the defluorination chamber, a motor is arranged above the support plate, a first bearing seat is arranged on the inner wall of the left side of the middle of the inside of the defluorination chamber, the right side of the first bearing seat is connected with a rotating shaft, square stirring plates are arranged above and below the rotating shaft, a second bearing seat is arranged at one end of the rotating shaft, which is far away from the first bearing seat, the second bearing seat is fixedly connected on the inner wall of the right side of the defluorination chamber, an air inlet pipeline is connected above the second bearing seat, the air inlet pipeline penetrates through the upper inner wall of the defluorination chamber and extends to the upper part of the upper inner wall of the defluorination chamber, and an air inlet valve is arranged at the upper end of the air inlet pipeline; a first air outlet pipeline is arranged at the upper end of the right side of the defluorination chamber, an air exhaust fan is arranged at one end of the first air outlet pipeline close to the defluorination chamber, and one end of the first air outlet pipeline far away from the defluorination chamber is connected with the drying chamber; the inside concentrated sulfuric acid solution that is provided with of drying chamber, the second inlet is installed to the outside top of drying chamber, and second inlet top is provided with sealed lid.

As a further aspect of the present invention: and air outlet holes are formed in the middle positions of the square stirring plates.

As a further aspect of the present invention: the inner parts of the second bearing block, the rotating shaft and the square stirring plate are communicated.

As a further aspect of the present invention: and a second air outlet pipeline is arranged at the upper end of the right side of the drying chamber.

As a further aspect of the present invention: and the second air outlet pipeline is provided with an air outlet valve.

Compared with the prior art, the utility model is provided with the drying chamber to further dry the defluorinated raw materials so as to be directly put into use, thereby saving the time for workers to dry again; the rotary shaft, the square stirring plate and the air outlet are arranged, so that the contact area of the raw materials and the alkaline solution is increased, the defluorination efficiency is improved, and the purity of the product is improved.

Drawings

Fig. 1 is a schematic structural diagram of a defluorination apparatus for producing anhydrous hydrogen fluoride from a phosphoric acid by-product fluosilicic acid.

Fig. 2 is a schematic sectional structure view of a defluorination apparatus for producing anhydrous hydrogen fluoride from a phosphoric acid by-product fluosilicic acid.

FIG. 3 is a schematic sectional structure view of a square stirring plate in a defluorination apparatus for producing anhydrous hydrogen fluoride from a phosphoric acid by-product fluosilicic acid.

Fig. 4 is a schematic structural diagram of the interior of a second bearing block, a rotating shaft and a square stirring plate in a defluorination device for producing anhydrous hydrogen fluoride from a phosphoric acid by-product fluosilicic acid.

In the figure: 1. a defluorination chamber; 2. a purified liquid tank; 3. a first liquid inlet; 4. a motor; 5. a support plate; 6. a first bearing housing; 7. a square stirring plate; 8. an air outlet; 9. a spray head; 10. a conduit; 11. an air intake duct; 12. an intake valve; 13. a second bearing housing; 14. a rotating shaft; 15. a first outlet duct; 16. an air extraction fan; 17. a drying chamber; 18. a concentrated sulfuric acid solution; 19. a sealing cover; 20. a second liquid inlet; 21. a second outlet duct; 22. and an air outlet valve.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, a defluorination apparatus for producing anhydrous hydrogen fluoride from fluosilicic acid as a phosphoric acid byproduct comprises a defluorination chamber 1, a motor 4, a first bearing seat 6, a square stirring plate 7, a second bearing seat 13, a rotating shaft 14, a first gas outlet pipeline 15, a drying chamber 17 and a second gas outlet pipeline 21; a purified liquid box 2 is arranged above the outer part of the defluorination chamber 1, a first liquid inlet 3 is arranged above the purified liquid box 2, alkaline solution is contained in the purified liquid box 2, a conduit 10 is arranged below the purified liquid box 2, the conduit 10 penetrates through the upper inner wall of the defluorination chamber 1, and a spray head 9 is arranged at the lower end of the conduit 10; a support plate 5 is arranged in the middle of the right side outside the defluorination chamber 1, a motor 4 is arranged above the support plate 5, a first bearing seat 6 is arranged on the inner wall of the left side of the middle of the inside of the defluorination chamber 1, the right side of the first bearing seat 6 is connected with a rotating shaft 14, square stirring plates 7 are arranged above and below the rotating shaft 14, air outlet holes 8 are formed in the middle of the square stirring plates 7, a second bearing seat 13 is arranged at one end, away from the first bearing seat 6, of the rotating shaft 14, the second bearing seat 13 is fixedly connected to the inner wall of the right side of the defluorination chamber 1, the insides of the second bearing seat 13, the rotating shaft 14 and the square stirring plates 7 are communicated, an air inlet pipeline 11 is connected above the second bearing seat 13, the air inlet pipeline 11 penetrates through the upper inner wall of the defluorination chamber 1 and extends to the upper side, and an air inlet valve 12 is arranged at the upper end of the air inlet pipeline 11; a first air outlet pipeline 15 is arranged at the upper end of the right side of the defluorination chamber 1, an air exhaust fan 16 is arranged at one end of the first air outlet pipeline 15 close to the defluorination chamber 1, and one end of the first air outlet pipeline 15 far away from the defluorination chamber 1 is connected with a drying chamber 17; the drying chamber 17 is internally provided with concentrated sulfuric acid solution 18, a second liquid inlet 20 is arranged above the outside of the drying chamber 17, a sealing cover 19 is arranged above the second liquid inlet 20, a second air outlet pipeline 21 is arranged at the upper end of the right side of the drying chamber 17, and an air outlet valve 22 is arranged on the second air outlet pipeline 21.

The utility model discloses a theory of operation is: the method comprises the steps of pouring alkaline solution into a purified liquid box 2 from a first liquid inlet 3, opening an air inlet valve 12, enabling the raw material to pass through an air inlet pipeline 11, a second bearing block 13, a rotating shaft 14 and a square stirring plate 7 to enter a defluorination chamber 1 from an air outlet hole 8, opening a motor 4, driving the rotating shaft 14 to rotate by the motor 4, spraying the alkaline solution from a spray head 9, enabling the raw material to be in better contact with the alkaline solution, improving defluorination efficiency, opening an air exhaust fan 16, enabling the defluorinated raw material to pass through a first air outlet pipeline 15 to enter a drying chamber 17, and enabling the raw material to pass through a concentrated sulfuric acid solution 18 to be dried and then to be discharged from a second air outlet pipeline 21.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A defluorination device for producing anhydrous hydrogen fluoride by phosphoric acid byproduct fluosilicic acid comprises a defluorination chamber (1), a motor (4), a first bearing seat (6), a square stirring plate (7), a second bearing seat (13), a rotating shaft (14), a first gas outlet pipeline (15), a drying chamber (17) and a second gas outlet pipeline (21), and is characterized in that a purified liquid box (2) is installed above the outside of the defluorination chamber (1), a first liquid inlet (3) is installed above the purified liquid box (2), alkaline solution is contained in the purified liquid box (2), a guide pipe (10) is installed below the purified liquid box (2), the guide pipe (10) penetrates through the upper inner wall of the defluorination chamber (1), and a spray head (9) is arranged at the lower end of the guide pipe (10); a supporting plate (5) is installed in the middle of the right side outside the defluorination chamber (1), a motor (4) is installed above the supporting plate (5), a first bearing seat (6) is installed on the inner wall of the left side of the middle of the interior of the defluorination chamber (1), the right side of the first bearing seat (6) is connected with a rotating shaft (14), square stirring plates (7) are arranged above and below the rotating shaft (14), a second bearing seat (13) is installed at one end, far away from the first bearing seat (6), of the rotating shaft (14), the second bearing seat (13) is fixedly connected to the inner wall of the right side of the defluorination chamber (1), an air inlet pipeline (11) is connected above the second bearing seat (13), the air inlet pipeline (11) penetrates through the upper inner wall of the defluorination chamber (1) and extends to the upper side, and an air inlet valve (12) is arranged at the upper end of the air inlet pipeline (11); a first air outlet pipeline (15) is installed at the upper end of the right side of the defluorination chamber (1), an air exhaust fan (16) is installed at one end, close to the defluorination chamber (1), of the first air outlet pipeline (15), and one end, far away from the defluorination chamber (1), of the first air outlet pipeline (15) is connected with a drying chamber (17); the drying chamber (17) is internally provided with a concentrated sulfuric acid solution (18), a second liquid inlet (20) is arranged above the outside of the drying chamber (17), and a sealing cover (19) is arranged above the second liquid inlet (20).

2. The defluorination apparatus for producing anhydrous hydrogen fluoride from fluosilicic acid as a phosphoric acid by-product according to claim 1, wherein the middle positions of the square stirring plates (7) are provided with air outlets (8).

3. The defluorination apparatus for producing anhydrous hydrogen fluoride from fluosilicic acid as a phosphoric acid by-product according to claim 1, wherein the inside of the second bearing seat (13), the rotating shaft (14) and the square stirring plate (7) are all communicated.

4. The defluorination apparatus for producing anhydrous hydrogen fluoride from fluosilicic acid as a phosphoric acid by-product according to claim 1, wherein a second gas outlet pipe (21) is installed at the upper right end of said drying chamber (17).

5. The defluorination apparatus for producing anhydrous hydrogen fluoride from fluosilicic acid as a phosphoric acid byproduct according to claim 1, wherein an air outlet valve (22) is arranged on said second air outlet pipe (21).