Arsenic removal refining pot

Abstract

The utility model relates to the technical field of lead-antimony alloy arsenic removal refining, in particular to an arsenic removal refining pot which comprises a refining pot body erected on a melting support. A sealing cover body covers the refining pot body, a feeding module is arranged on the sealing cover body, the feeding module comprises a feeding pipe, the feeding pipe is fixed on the sealing cover body, a feeding hopper is arranged at the input end of the feeding pipe, the output end of the feeding pipe is connected with a material conveying inclined pipe, and the material conveying inclined pipe is connected with a feeding hopper. The output end of the inclined conveying pipe extends into the refining pot body, and an electric valve is arranged on the feeding pipe. The arsenic removal refining pot disclosed by the utility model can improve the mixing reaction efficiency of a chemical reagent and molten lead-antimony alloy.

Description

Technical Field

[0001] This utility model relates to the field of arsenic removal and refining technology for lead-antimony alloys, and in particular to an arsenic removal and refining pot. Background Technology

[0002] Arsenic in lead-antimony alloys is generally considered a harmful impurity and needs to be removed through specific processes. Industrially, chemical treatment methods are often used. The main steps are: adding specific chemical reagents, such as sodium hydroxide and sodium chloride, to the molten lead-antimony alloy to promote the reaction of arsenic with these reagents to generate removable compounds, such as sodium arsenate scum. This scum is then separated from the molten lead-antimony metal to obtain a lead-antimony alloy with higher purity.

[0003] When using existing refining pots for arsenic removal, chemical reagents can only be added to the edge of the refining pot through the feeding pipe, resulting in low mixing efficiency when the chemical reagents are mixed with the molten lead-antimony alloy. Utility Model Content

[0004] The purpose of this invention is to provide an arsenic removal refining pot that can improve the mixing and reaction efficiency of chemical reagents and molten lead-antimony alloy.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An arsenic removal refining pot includes a refining pot body mounted on a melting support; a sealing cover is provided on the refining pot body, and a feeding module is provided on the sealing cover. The feeding module includes a feeding pipe fixed to the sealing cover. A feeding funnel is provided at the input end of the feeding pipe, and a conveying inclined pipe is connected to its output end. The output end of the conveying inclined pipe extends into the interior of the refining pot body, and an electric valve is provided on the feeding pipe.

[0007] As an improvement, several suction pipes are provided around the top of the refining pot body. The input end of the suction pipe extends into the interior of the refining pot body, and its output end is connected to an annular gas supply pipe.

[0008] As an improvement, an exhaust pipe is connected to the annular gas supply pipe, and the exhaust pipe is connected to an external negative pressure smoke extraction pipe.

[0009] As an improvement, a stirring device is provided vertically downward on the sealing cover. The stirring device includes a stirring motor, which is connected to a stirring rod through a reducer. Several stirring blades are provided on the stirring rod.

[0010] As an improvement, several stabilizing sleeves are fitted onto the stirring rod, and the stabilizing sleeves are fixed to the refining pot body by several connecting rods.

[0011] As an improvement, several material dispersion blades are fixed on the stirring rod, and the material dispersion blades are located below the conveying inclined pipe.

[0012] As an improvement, a hemispherical guide block is provided vertically upward at the bottom of the melting support.

[0013] In summary, this utility model has the following beneficial effects:

[0014] 1. When chemical reagents are injected into the refining pot body through the feeding pipe, they can be directly injected into the middle part of the refining pot body through the conveying inclined pipe, so as to quickly mix the molten lead-antimony alloy;

[0015] 2. By setting material dispersion blades below the conveying inclined pipe, when chemical reagents are injected into the refining pot, the chemical reagents can be quickly dispersed into the molten lead-antimony alloy under the action of the material dispersion blades, thereby improving the reaction efficiency.

[0016] 3. Multiple exhaust pipes can quickly remove the flue gas produced inside the refining pot. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0018] Figure 1 A schematic diagram of the overall structure of an arsenic removal refining pot;

[0019] Figure 2 This is a schematic cross-sectional view of an arsenic removal refining pot.

[0020] The components include: 1. Refining pot body; 2. Melting support; 3. Sealing cover; 4. Feeding pipe; 5. Feeding funnel; 6. Conveying inclined pipe; 7. Electric valve; 8. Air extraction pipe; 9. Annular air conveying pipe; 10. Exhaust pipe; 11. Stirring motor; 12. Stabilizing sleeve; 13. Stirring rod; 14. Stirring blade; 15. Connecting rod; 16. Material dispersion blade; 17. Reducer; 18. Inlet; 19. Hemispherical guide block; 20. Leakage port. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Please refer to Figures 1-2An arsenic removal refining pot includes a refining pot body 1, which is mounted on a melting support 2. A sealing cover 3 is provided on the refining pot body 1, and a feeding module is provided on the sealing cover 3. The feeding module includes a feeding pipe 4, which is fixed on the sealing cover 3. A feeding funnel 5 is provided at the input end of the feeding pipe 4, and a conveying inclined pipe 6 is connected to its output end. The output end of the conveying inclined pipe 6 extends into the interior of the refining pot body 1. An electric valve 7 is provided on the feeding pipe 4.

[0023] Several suction pipes 8 are provided around the top of the refining pot body 1. The input end of the suction pipe 8 extends into the interior of the refining pot body 1, and its output end is connected to an annular gas supply pipe 9. An exhaust pipe 10 is connected to the annular gas supply pipe 9, and the exhaust pipe 10 is connected to an external negative pressure smoke extraction pipe.

[0024] In this embodiment, the flue gas produced inside the refining pot body 1 can be quickly discharged through multiple exhaust pipes 10.

[0025] A stirring device is vertically downwardly mounted on the sealing cover 3. The stirring device includes a stirring motor 11, which is connected to a stirring rod 13 via a reducer 17. Several stirring blades 14 are mounted on the stirring rod 13. Several stabilizing sleeves 12 are fitted onto the stirring rod 13, and the stabilizing sleeves 12 are fixed inside the refining pot body 1 via several connecting rods 15.

[0026] In this embodiment, the stirring device not only improves the melting efficiency of the lead-antimony alloy, but also plays a role in stirring and mixing when chemical reagents are added to the refining pot body 1, thereby improving the slag discharge efficiency. The stirring rod 13 is rotatably sleeved inside the stabilizing sleeve 12, which improves the stirring stability of the stirring rod 13.

[0027] Several material dispersion blades 16 are fixed on the stirring rod 13, and the material dispersion blades 16 are located below the conveying inclined pipe 6. In this embodiment, by setting the material dispersion blades 16 below the conveying inclined pipe 6, when the chemical reagent is injected into the refining pot body 1, the chemical reagent can be quickly dispersed into the molten lead-antimony alloy under the action of the material dispersion blades 16, thereby improving the reaction efficiency;

[0028] A hemispherical guide block 19 is provided vertically upward at the bottom of the melting support 2. In this embodiment, when the refining pot leaks, the leaked high-temperature liquid is discharged through the leak ports 20 on both sides of the melting support 2 under the action of the hemispherical guide block 19, which facilitates cleaning.

[0029] Working principle: The refining pot body 1 is mounted on the melting support 2. The alloy is added into the refining pot body 1 through the inlet 18, which is located on the sealing cover 3. The refining pot body 1 is heated by a gas gun to melt the alloy. During the melting process, the alloy is stirred by the stirring fan blade 14 to accelerate the melting. After the alloy is completely melted, it is maintained within a certain temperature range. Chemical reagents are injected into the refining pot body 1 through the feeding pipe 4. The chemical reagents are directly injected into the middle part of the refining pot body 1 through the conveying inclined pipe 6, so that the molten lead-antimony alloy can be quickly mixed.

[0030] During the addition process, the chemical reagents are rapidly dispersed into the molten lead-antimony alloy under the action of the material dispersion fan blades 16.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An arsenic removal refining pot, characterized in that, It includes a refining pot body, which is mounted on a melting support; A sealing cover is provided on the refining pot body, and a feeding module is provided on the sealing cover. The feeding module includes a feeding pipe, which is fixed on the sealing cover. A feeding funnel is provided at the input end of the feeding pipe, and a conveying inclined pipe is connected to its output end. The output end of the conveying inclined pipe extends into the interior of the refining pot body, and an electric valve is provided on the feeding pipe.

2. The arsenic removal refining pot according to claim 1, characterized in that, Several suction pipes are provided around the top of the refining pot body. The input end of the suction pipe extends into the interior of the refining pot body, and its output end is connected to an annular gas supply pipe.

3. The arsenic removal refining pot according to claim 2, characterized in that, An exhaust pipe is connected to the annular gas supply pipe, and the exhaust pipe is connected to an external negative pressure smoke extraction pipe.

4. The arsenic removal refining pot according to claim 1, characterized in that, A stirring device is provided vertically downward on the sealing cover. The stirring device includes a stirring motor, which is connected to a stirring rod through a reducer. Several stirring blades are provided on the stirring rod.

5. The arsenic removal refining pot according to claim 4, characterized in that, Several stabilizing sleeves are fitted onto the stirring rod, and the stabilizing sleeves are fixed to the refining pot body by several connecting rods.

6. The arsenic removal refining pot according to claim 4, characterized in that, Several material dispersion blades are fixed on the stirring rod, and the material dispersion blades are located below the conveying inclined pipe.

7. The arsenic removal refining pot according to claim 1, characterized in that, A hemispherical guide block is provided vertically upward at the bottom of the melting support.

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