CN215404430U - Device for preparing metal arsenic by reduction - Google Patents
Device for preparing metal arsenic by reduction Download PDFInfo
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- CN215404430U CN215404430U CN202121357668.3U CN202121357668U CN215404430U CN 215404430 U CN215404430 U CN 215404430U CN 202121357668 U CN202121357668 U CN 202121357668U CN 215404430 U CN215404430 U CN 215404430U
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Abstract
The utility model discloses a device for preparing metal arsenic by reduction, which comprises a heating chamber, a carbothermic reduction furnace, a condensation chamber, a dust collector, a flue gas treatment tower, a flue gas purification tower, an induced draft fan and a chimney; the heating chamber is connected with one end of the carbothermic reduction furnace, the other end of the carbothermic reduction furnace is connected with one end of the condensing chamber, and the other end of the condensing chamber is connected with the collectorThe one end of dirt ware is connected, the other end of dust collector is connected with the bottom of flue gas treatment tower, the top of flue gas treatment tower is connected with the bottom of gas cleaning tower, the top of gas cleaning tower is connected with the one end of draught fan, the other end and the chimney of draught fan are connected. The utility model has the function of effectively collecting As2O3Or As2O5And metal arsenic in the arsenic-containing raw material.
Description
Technical Field
The utility model relates to a device for preparing metal arsenic by reduction.
Background
The preparation of simple substance arsenic, the prior art at home and abroad mainly comprises: hydrogen reduction, carbothermic reduction and arsenopyrite thermal decomposition.
The hydrogen reduction method is to reduce As by using hydrogen As a reducing agent2O3The method has the risk of explosion because the reducing agent used is hydrogen.
Carbothermic reduction is generally carried out by reacting As2O3Mixing with coke, heating and reducing in crucible furnace or electric furnace to gasify arsenic to condenseThe method has the advantages of large raw material loss, low direct yield and unstable product quality after being collected in a container.
Disclosure of Invention
The utility model aims to provide a device for preparing metal arsenic by reduction aiming at the defects of the prior art.
In order to achieve the above object of the present invention, the following technical solutions are provided:
a device for preparing metal arsenic by reduction comprises a heating chamber, a carbothermic reduction furnace, a condensation chamber, a dust collector, a flue gas treatment tower, a flue gas purification tower, an induced draft fan and a chimney; the heating chamber is connected with one end of the carbon thermal reduction furnace, the other end of the carbon thermal reduction furnace is connected with one end of the condensing chamber, the other end of the condensing chamber is connected with one end of a dust collector, the other end of the dust collector is connected with the bottom of the flue gas treatment tower, the top of the flue gas treatment tower is connected with the bottom of the flue gas purification tower, the top of the flue gas purification tower is connected with one end of an induced draft fan, and the other end of the induced draft fan is connected with a chimney.
As a further improvement of the technical scheme, the heating chamber comprises a heating layer, a gasification layer and a material spraying pipe; the gasification layer is arranged on the top of the heating layer; the spray pipe is arranged at the top of the gasification layer and is communicated with the gasification layer.
As a further improvement of the technical scheme, the device for preparing the metallic arsenic by reduction also comprises a thermometer; the thermometer is arranged on the gasification layer and used for monitoring the temperature of the gasification layer.
As a further improvement of the technical scheme, at least two condensing chambers are arranged, and the at least two condensing chambers are arranged in parallel at intervals.
As the further improvement of the technical proposal, the device for preparing the metal arsenic by reduction also comprises an arsenic ingot mould; and a plurality of arsenic ingot molds are arranged in the condensation chamber.
As a further improvement of the technical scheme, the device for preparing the metal arsenic by reduction also comprises an operation platform; the operation platform is used for installing the carbothermic reduction furnace and the condensation chamber; the carbothermic reduction furnace and the condensing chamber are arranged in parallel at intervals.
As a further improvement of the technical scheme, the device for preparing metal arsenic by reduction further comprises a first connecting pipeline, a second connecting pipeline, a fourth connecting pipeline, a fifth connecting pipeline and a sixth connecting pipeline; the top of the heating chamber is connected with the bottom of the carbothermic reduction furnace through a first connecting pipeline; the top of the carbothermic reduction furnace is connected with one end of the condenser through a second connecting pipeline; the other end of the condenser is connected with one end of the dust collector through a fourth connecting pipeline; the other end of the dust collector is connected with the bottom of the flue gas treatment tower through a fifth connecting pipeline; the top of the flue gas treatment tower is connected with the bottom of the flue gas purification tower through a sixth connecting pipeline.
As a further improvement of the technical scheme, the device for preparing the metal arsenic by reduction also comprises an induced draft pipeline and an exhaust pipeline; one end of the initiation pipeline is connected with the top of the chimney purification tower, and the other end of the initiation pipeline is connected with an inlet of the induced draft fan; one end of the exhaust pipeline is connected with an outlet of the induced draft fan, and the other end of the exhaust pipeline is connected with the chimney.
As a further improvement of the technical scheme, the dust collector adopts a pulse bag filter.
Compared with the prior art, the utility model has the advantages that:
1. the utility model can effectively remove As2O3Or As2O5Reducing and collecting metal arsenic in the arsenic-containing raw material to obtain As2O3Or As2O5The raw materials containing arsenic are sprayed into a heating chamber, are heated by the heating chamber and are quickly sublimated to enter a carbothermic reduction furnace, and are reduced into arsenic steam and flue gas in the carbothermic reduction furnace, the arsenic steam and the flue gas enter a condensation chamber, the arsenic steam is cooled and condensed into metal arsenic ingots in the condensation chamber, the flue gas enters a dust collector, and the dust collector filters the flue gas, so that part of arsenic steam possibly carried in the flue gas can be filtered, and arsenic ash can be collected; the smoke enters a smoke treatment tower for treatment through a dust collector, the smoke treatment tower sends the treated smoke into a smoke purification tower for secondary purification so as to reach the emission standard, an induced draft fan extracts the smoke in the smoke purification tower and sends the smoke into a chimney, and the smoke passes through the smokeThe chimney is exhausted into the atmosphere.
2. The heating chamber of the utility model comprises a gasification layer, a heating layer and a material spraying pipe, wherein the heating layer supplies heat to the gasification layer, the material spraying pipe is communicated with the gasification layer, and As2O3Or As2O5Spraying the raw material containing arsenic into the gasification layer through a material spraying pipe; compressed air is used as the driving force.
3. The condensation chamber is provided with an arsenic ingot mold, and the arsenic ingot mold can conveniently collect metal arsenic, namely, arsenic steam enters the condensation chamber, is cooled and condensed by the condensation chamber, and the metal arsenic is deposited on the arsenic ingot mold; the arsenic ingot mould is fully deposited with metal arsenic and can be taken out, and a new arsenic ingot mould is replaced, so that the metal arsenic can be conveniently taken out from the condensation chamber.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of an apparatus for reduction preparation of metallic arsenic according to the present invention;
FIG. 2 is a schematic view of the heating chamber of the present invention;
FIG. 3 is a schematic view of the structure of the condensing chamber provided with an arsenic ingot mold according to the present invention;
names and serial numbers of the components in the figure: 1-a heating chamber, 101-a heating layer, 102-a gasification layer, 103-a thermometer, 104-a material spraying pipe, 2-a first connecting pipeline, 3-a carbothermic reduction furnace, 4-a second connecting pipeline, 5-a condensation chamber, 51-an arsenic ingot mold, 6-a third connecting pipeline, 7-a fourth connecting pipeline, 8-a dust collector, 9-a fifth connecting pipeline, 10-a flue gas treatment tower, 11-a sixth connecting pipeline, 12-a flue gas purification tower, 13-an induced air pipeline, 14-an exhaust pipeline, 15-a chimney, 16-an induced air fan and 17-an operation platform.
Detailed Description
In order to make the technical solutions in the present application better understood, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts based on the embodiments in the present application shall fall within the protection scope of the present application.
Example 1:
as shown in fig. 1 to 3, an apparatus for preparing metallic arsenic by reduction comprises a heating chamber 1, a carbothermic reduction furnace 3, a condensation chamber 5, a dust collector 8, a flue gas treatment tower 10, a flue gas purification tower 12, an induced draft fan 16 and a chimney 15; the heating chamber 1 is connected with one end of the carbothermic reduction furnace 3, the other end of the carbothermic reduction furnace 3 is connected with one end of a condensation chamber 5, the other end of the condensation chamber 5 is connected with one end of a dust collector 8, the other end of the dust collector 8 is connected with the bottom of a flue gas treatment tower 10, the top of the flue gas treatment tower 12 is connected with the bottom of a flue gas purification tower 12, the top of the flue gas purification tower 12 is connected with one end of an induced draft fan 16, and the other end of the induced draft fan 16 is connected with a chimney 15.
The working mode is as follows:
as is2O3Or As2O5The raw material containing arsenic is sprayed into the heating chamber 1, As2O3Or As2O5Raw materials containing arsenic are quickly sublimated in a heating chamber 1 and enter a carbon thermal reduction furnace 3, the raw materials are reduced into arsenic steam and smoke through the carbon thermal reduction furnace 3, the arsenic steam and the smoke enter a condensation chamber 5, the arsenic steam is cooled and condensed into metal arsenic ingots in the condensation chamber 5, the smoke enters a dust collector 8 through the condensation chamber 5, particles in the smoke are filtered in the dust collector 8 to obtain arsenic ash, the smoke enters a smoke treatment tower 10 through the dust collector 8 to be treated to remove harmful substances contained in the smoke, the smoke enters a smoke purification tower 12 through the smoke treatment tower 10, the smoke purification tower 12 purifies the smoke again to enable the smoke to reach the emission standard, an induced draft fan 16 extracts the smoke in the smoke purification tower 12 and sends the smoke into a chimney 15, and the smoke is discharged into the atmosphere through the chimney 15.
The induced draft fan is used as a power source for leading gas to flow from the carbon thermal reduction furnace, the condensation chamber 5, the dust collector 8 and the flue gas treatment tower 10 to the flue gas purification tower 12.
Example 2:
compared with example 1, the difference is that: one form of construction of the heating chamber is given.
As shown in fig. 2, the heating chamber 1 includes a heating layer 101, a gasification layer 102 and a material spraying pipe 104; the gasification layer 102 is arranged on the top of the heating layer 101; the shower pipe 104 is installed on top of the gasification layer 102 and communicates with the gasification layer 102.
The heating layer 101 is used for combustion heat supply, and the heating layer 101 supplies heat to the gasification layer 102.
The working mode of the heating chamber is as follows:
as2O3 or As2O5 and other arsenic-containing raw materials are sprayed into a gasification layer of a heating chamber through a material spraying pipe 104, a heating layer of the heating chamber is built by refractory materials, the heating chamber is heated by granular coal, and the arsenic-containing materials are rapidly sublimated in the gasification chamber.
The material spraying pipe 104 uses compressed air As a driving force, that is, arsenic-containing raw materials such As As2O3 or As2O5 and the like are put into the material spraying pipe, then the compressed air is introduced into the material spraying pipe, and the compressed air drives the arsenic-containing raw materials such As As2O3 or As2O5 and the like to be sprayed into the gasification layer.
Example 3:
compared with the embodiment 2, the difference lies in that: in order to conveniently know and monitor the temperature of the gasification layer, a thermometer is additionally arranged.
As shown in fig. 2, the thermometer 103 is installed in the vaporization layer 102 to monitor the temperature of the vaporization layer 102.
Example 4:
compared with the embodiment 2, the difference lies in that: in order to collect metallic arsenic better, the condensation chamber can be installed in a plurality of numbers.
The number of the condensing chambers 5 is at least two, and the at least two condensing chambers 5 are arranged in parallel at intervals. Can better collect metal arsenic.
And the two adjacent condensation chambers 5 are connected through a third connecting pipeline.
Example 5:
compared with any of examples 1 to 4, the difference is that: in order to allow the condensation chamber to collect more arsenic metal, an arsenic ingot mould 51 is additionally installed.
A plurality of arsenic ingot molds 51 are arranged in the condensation chamber 5. The arsenic ingot mold 51 is generally installed in a number of 10, 20, 30, 4, 0, 50, 60, 70, 80, 90, 100, etc.
Example 6:
compared with any of examples 1 to 5, the difference is that: in order to facilitate the uniform arrangement and installation of the carbon thermal reduction furnace and the condenser, an operation platform 17 is additionally arranged.
As shown in fig. 1, the operation platform 17 is used for installing the carbothermic reduction furnace 3 and the condensation chamber 5; the carbothermic reduction furnace 3 and the condensing chamber 5 are arranged in parallel at intervals.
Example 7:
compared with any of examples 1 to 6, the difference is that: a connection mode among a heating chamber, a carbothermic reduction furnace, a condensing chamber, a dust collector, a flue gas treatment tower and a flue gas purification tower is provided, and a first connecting pipeline 2, a second connecting pipeline 4, a fourth connecting pipeline 7, a fifth connecting pipeline 9 and a sixth connecting pipeline 11 are additionally arranged.
As shown in fig. 1, the top of the heating chamber 1 is connected with the bottom of the carbothermic reduction furnace 3 through a first connecting pipe 1; the top of the carbothermic reduction furnace 3 is connected with one end of a condenser 5 through a second connecting pipeline 4; the other end of the condenser 5 is connected with one end of a dust collector 8 through a fourth connecting pipeline 7; the other end of the dust collector 8 is connected with the bottom of a flue gas treatment tower 10 through a fifth connecting pipeline 9; the top of the flue gas treatment tower 10 is connected with the bottom of the flue gas purification tower 12 through a sixth connecting pipeline 11.
Example 8:
compared with any of examples 1 to 7, the difference is that: a connection structure form among the induced draft fan, the flue gas purification tower and the chimney is provided, and an induced draft pipeline 13 and an exhaust pipeline 14 are additionally installed.
As shown in fig. 1, one end of the inducing pipeline 13 is connected with the top of the chimney cleaning tower 12, and the other end thereof is connected with the inlet of the induced draft fan 16; one end of the exhaust pipeline 14 is connected with an outlet of the induced draft fan 16, and the other end of the exhaust pipeline is connected with the chimney 15.
Example 9:
compared with any of examples 1 to 8, the difference is that: a structural form of the dust collector is provided.
The dust collector 8 adopts a pulse bag filter. Can be beneficial to effectively collecting arsenic ash and reduce energy consumption.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the utility model.
Claims (9)
1. The device for preparing metal arsenic by reduction is characterized in that: comprises a heating chamber (1), a carbothermic reduction furnace (3), a condensing chamber (5), a dust collector (8), a flue gas treatment tower (10), a flue gas purification tower (12), an induced draft fan (16) and a chimney (15);
the heating chamber (1) is connected with one end of carbothermic reduction furnace (3), the other end of carbothermic reduction furnace (3) is connected with the one end of condensation chamber (5), the other end of condensation chamber (5) is connected with the one end of dust collector (8), the other end of dust collector (8) is connected with the bottom of flue gas treatment tower (10), the top of flue gas treatment tower (10) is connected with the bottom of flue gas purification tower (12), the top of flue gas purification tower (12) is connected with the one end of draught fan (16), the other end of draught fan (16) is connected with chimney (15).
2. The apparatus for reductive production of metallic arsenic according to claim 1, wherein: the heating chamber (1) comprises a heating layer (101), a gasification layer (102) and a material spraying pipe (104);
the gasification layer (102) is arranged on the top of the heating layer (101);
the material spraying pipe (104) is arranged on the top of the gasification layer (102) and is communicated with the gasification layer (102).
3. The apparatus for reductive production of metallic arsenic according to claim 2, wherein: also comprises a thermometer (103);
the thermometer (103) is arranged on the gasification layer (102) and is used for monitoring the temperature of the gasification layer (102).
4. The apparatus for reductive production of metallic arsenic according to claim 1, wherein: the number of the condensing chambers (5) is at least two, and the at least two condensing chambers (5) are arranged in parallel at intervals.
5. The apparatus for reductive production of metallic arsenic according to claim 1 or 4, wherein: further comprising an arsenic ingot mould (51); a plurality of arsenic ingot molds (51) are arranged in the condensation chamber (5).
6. The apparatus for reductive production of metallic arsenic according to any one of claims 1 to 4, wherein: further comprising an operating platform (17);
the operating platform (17) is used for installing the carbothermic reduction furnace (3) and the condensing chamber (5); the carbothermic reduction furnace (3) and the condensing chamber (5) are arranged in parallel at intervals.
7. The apparatus for reductive production of metallic arsenic according to claim 6, wherein: the device also comprises a first connecting pipeline (2), a second connecting pipeline (4), a fourth connecting pipeline (7), a fifth connecting pipeline (9) and a sixth connecting pipeline (11);
the top of the heating chamber (1) is connected with the bottom of the carbothermic reduction furnace (3) through a first connecting pipeline (2);
the top of the carbothermic reduction furnace (3) is connected with one end of a condensing chamber (5) through a second connecting pipeline (4);
the other end of the condensing chamber (5) is connected with one end of a dust collector (8) through a fourth connecting pipeline (7);
the other end of the dust collector (8) is connected with the bottom of the flue gas treatment tower (10) through a fifth connecting pipeline (9);
the top of the flue gas treatment tower (10) is connected with the bottom of the flue gas purification tower (12) through a sixth connecting pipeline (11).
8. The apparatus for reductive production of metallic arsenic according to claim 7, wherein: the air conditioner also comprises an induced draft pipeline (13) and an exhaust pipeline (14);
one end of the induced draft pipeline (13) is connected with the top of the flue gas purification tower (12), and the other end of the induced draft pipeline is connected with an inlet of an induced draft fan (16);
one end of the exhaust pipeline (14) is connected with an outlet of the induced draft fan (16), and the other end of the exhaust pipeline is connected with the chimney (15).
9. The apparatus for reductive production of metallic arsenic according to claim 6, wherein: the dust collector (8) adopts a pulse bag type filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121357668.3U CN215404430U (en) | 2021-06-18 | 2021-06-18 | Device for preparing metal arsenic by reduction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121357668.3U CN215404430U (en) | 2021-06-18 | 2021-06-18 | Device for preparing metal arsenic by reduction |
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| CN215404430U true CN215404430U (en) | 2022-01-04 |
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| CN202121357668.3U Active CN215404430U (en) | 2021-06-18 | 2021-06-18 | Device for preparing metal arsenic by reduction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717429A (en) * | 2022-04-18 | 2022-07-08 | 广东先导微电子科技有限公司 | Arsenic trichloride reduction device and arsenic trichloride reduction method |
-
2021
- 2021-06-18 CN CN202121357668.3U patent/CN215404430U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717429A (en) * | 2022-04-18 | 2022-07-08 | 广东先导微电子科技有限公司 | Arsenic trichloride reduction device and arsenic trichloride reduction method |
| CN114717429B (en) * | 2022-04-18 | 2023-12-26 | 广东先导微电子科技有限公司 | Arsenic trichloride reduction device and arsenic trichloride reduction method |
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