CN110846523A

CN110846523A - Germanium pyrogenic process that can high efficiency retrieve refines device

Info

Publication number: CN110846523A
Application number: CN201911147692.1A
Authority: CN
Inventors: 李建勋; 李建汶
Original assignee: HUNAN JIANXUN ENVIRONMENTAL RESOURCES AND TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: HUNAN JIANXUN ENVIRONMENTAL RESOURCES AND TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-02-28

Abstract

The invention relates to the technical field of precious metal extraction, in particular to a germanium pyrogenic extraction device capable of efficiently recovering, which comprises a furnace body, wherein germanium materials enter the furnace body to be incompletely combusted to generate germanium monoxide, then the germanium materials are converted into germanium dioxide gas after secondary combustion, then the germanium gases enter a decompression chamber to be decompressed, then the germanium gases are cooled through a cooling device, then the germanium gases are cooled through a dust remover, dust is removed, desulfurization is carried out through a desulfurization device, then the germanium gases are discharged into the atmosphere, particles in flue gas pass through the dust remover and are recovered by a dust collecting device to obtain germanium concentrate, the germanium pyrogenic extraction device has the advantages of being simple in structure, easy to operate, capable of solving the problem of low germanium recovery efficiency, capable of efficiently recovering, capable of achieving a recovery rate of more than 90%, and capable of achieving a recovery rate of more than 75% when treating mixed germanium materials such as germanium-containing coal slag and germanium-containing, Smelting germanium-containing materials such as germanium acid extraction residues and germanium alkali extraction residues.

Description

Germanium pyrogenic process that can high efficiency retrieve refines device

Technical Field

The invention relates to the technical field of precious metal extraction, in particular to a germanium pyrogenic extraction device capable of efficiently recovering.

Background

Germanium in the lignite is mainly extracted by adopting a pyrogenic process, namely, after lignite is incompletely combusted under a slightly anoxic condition in a reductive atmosphere, germanium in the lignite is incompletely oxidized to form germanium monoxide, the germanium monoxide volatilizes to enter flue gas due to the fact that the germanium monoxide is formed at a temperature higher than 710 ℃, fine particles in the flue gas move to the tail along a flue gas pipeline, when excessive oxygen is met, the germanium dioxide is oxidized again to form germanium dioxide and is enriched on the surface of the flue gas, a cloth bag is adopted to collect the flue gas to obtain germanium concentrate, but the problem that the germanium enrichment degree is low in the existing refining device generally exists, the labor intensity of workers is high, the recovery rate of germanium metal is low, the treatment capacity is small, the production efficiency is low, and the technical problem to be solved urgently is solved.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the pyrogenic extraction device for germanium, which can be used for efficiently recovering germanium, has the advantage of high-efficiency recovery, and solves the problem of low germanium recovery efficiency.

(II) technical scheme

In order to achieve the purpose of high-efficiency recovery, the invention provides the following technical scheme: the utility model provides a device is refined to germanium pyrogenic process that can high efficiency retrieve, includes the furnace body, the top fixedly connected with air-blower of furnace body, the left side fixedly connected with combustion chamber of furnace body, the bottom fixedly connected with decompression chamber of combustion chamber, the left side fixedly connected with flue gas pipeline of decompression chamber, the left side fixedly connected with cooling device of flue gas pipeline, cooling device's outer wall fixedly connected with connecting pipe, the bottom fixedly connected with draught fan of connecting pipe, the outer wall fixedly connected with desulfurization pipe of draught fan, the bottom fixedly connected with desulphurization unit of desulfurization pipe.

Preferably, the lower part of the furnace body is provided with a slag channel, so that residues after combustion can be cleaned conveniently.

Preferably, the decompression chamber has the function of backflow, and germanium is extracted and recovered more efficiently.

Preferably, the cooling device is a surface cooling device, and the cooling effect is more excellent.

Preferably, the induced draft fan is arranged between the cooling device and the desulfurization device.

(III) advantageous effects

Compared with the prior art, the invention provides a germanium pyrogenic refining device capable of efficiently recovering germanium, which has the following beneficial effects:

1. this novel germanium fire draws equipment, the germanium material gets into the furnace body and carries out incomplete combustion and produce germanium monoxide, later become germanium dioxide gas after the afterburning, later get into the decompression chamber after the decompression, cool down through cooling device, later cool down through the dust remover again, exhaust apparatus gets into the atmosphere after dust removal and the desulphurization unit desulfurization, granule in the flue gas is retrieved by dust arrester installation behind the dust arrester installation and is obtained the germanium concentrate, through the furnace body, the decompression chamber, cooperation between cooling device and the desulphurization unit is used, thereby reached and effectively refined the effect of retrieving to germanium.

2. This novel germanium pyrogenic process draws equipment, the germanium rate of recovery is higher, and the independent processing contains germanium brown coal and can reach more than 90% the rate of recovery, and when handling mixed germanium materials such as containing germanium cinder, containing germanium acid sludge, the rate of recovery of germanium can reach more than 75%, and extensive applicability is applicable in the smelting of the germanium-containing materials such as the germanium slag of carrying out the germanium, carrying germanium acid sludge, carrying germanium alkali sediment, other low-content germanium materials.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1-furnace body, 2-blower, 3-combustion chamber, 4-decompression chamber, 5-flue gas pipeline, 6-cooling device, 7-connecting pipe, 8-draught fan, 9-desulfurization pipe and 10-desulfurization device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a germanium pyrogenic refining device capable of efficiently recycling includes a furnace body 1, a blower 2 is fixedly connected to the top of the furnace body 1, a slag channel is arranged at the lower part of the furnace body 1 to facilitate cleaning of residues after combustion, a combustion chamber 3 is fixedly connected to the left side of the furnace body 1, a decompression chamber 4 is fixedly connected to the bottom of the combustion chamber 3, the decompression chamber 4 has a backflow function, germanium can be more efficiently refined and recycled, a flue gas pipeline 5 is fixedly connected to the left side of the decompression chamber 4, a cooling device 6 is fixedly connected to the left side of the flue gas pipeline 5, the cooling device 6 is a surface cooling device, the cooling effect is more outstanding, a connecting pipe 7 is fixedly connected to the outer wall of the cooling device 6, an induced draft fan 8 is fixedly connected to the bottom of the connecting pipe 7, a desulfurization pipe 9 is fixedly connected to the outer wall of the induced draft fan, the induced draft fan 8 is arranged between the cooling device 6 and the desulfurization device 10.

The working principle is that germanium materials enter a furnace body 1 to be incompletely combusted to generate germanium monoxide, then the germanium materials are changed into germanium dioxide gas after secondary combustion, then the germanium dioxide gas enters a decompression chamber 4 to be decompressed and then is cooled through a cooling device 6, then the germanium dioxide gas is discharged into the atmosphere after being cooled through a dust remover and desulfurized through a desulfurizing device 10, and particles in flue gas are recovered through a dust collecting device to obtain germanium concentrate after passing through the dust removing device.

In summary, according to the novel germanium pyrogenic extraction equipment, germanium materials enter the furnace body 1 to be incompletely combusted to generate germanium monoxide, then the germanium monoxide is changed into germanium dioxide gas after secondary combustion, then the germanium dioxide gas enters the decompression chamber 4 to be decompressed and then is cooled by the cooling device 6, then the germanium dioxide gas is discharged into the atmosphere after being cooled by the dust collector, dust is removed, and the sulfur is removed by the sulfur removal device 10, particles in flue gas are recovered by the dust collector after passing through the dust collector to obtain germanium concentrate, and the germanium concentrate is effectively extracted and recovered by matching the furnace body 1, the decompression chamber 4, the cooling device 6 and the sulfur removal device 10; the recovery rate of germanium is high, the recovery rate of germanium-containing lignite can reach more than 90% by independent treatment, the recovery rate of germanium can reach more than 75% when mixed germanium materials such as germanium-containing cinder and germanium-containing acid slag are treated, the applicability is wide, and the method is suitable for smelting germanium-containing materials such as germanium-extracting furnace slag, germanium-extracting acid slag, germanium-extracting alkali slag and other low-content germanium materials.

Although 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

1. The utility model provides a device is abstracted to germanium pyrogenic process that can high efficiency retrieve, includes furnace body (1), its characterized in that: the utility model discloses a desulfurization process, including the top fixedly connected with air-blower (2) of furnace body (1), left side fixedly connected with combustion chamber (3) of furnace body (1), the bottom fixedly connected with decompression chamber (4) of combustion chamber (3), the left side fixedly connected with flue gas pipeline (5) of decompression chamber (4), the left side fixedly connected with cooling device (6) of flue gas pipeline (5), the outer wall fixedly connected with connecting pipe (7) of cooling device (6), the bottom fixedly connected with draught fan (8) of connecting pipe (7), the outer wall fixedly connected with desulfurization pipe (9) of draught fan (8), the bottom fixedly connected with desulphurization unit (10) of desulfurization pipe (9).

2. The device of claim 1 for pyrometallurgical extraction of germanium from water with high recovery efficiency, wherein: and a slag channel is arranged at the lower part of the furnace body (1).

3. The device of claim 1 for pyrometallurgical extraction of germanium from water with high recovery efficiency, wherein: the decompression chamber (4) has a backflow function.

4. The device of claim 1 for pyrometallurgical extraction of germanium from water with high recovery efficiency, wherein: the cooling device (6) is a surface cooling device.

5. The device of claim 1 for pyrometallurgical extraction of germanium from water with high recovery efficiency, wherein: and the induced draft fan (8) is arranged between the cooling device (6) and the desulphurization device (10).