CN202880885U - Novel selenium dioxide production equipment - Google Patents
Novel selenium dioxide production equipment Download PDFInfo
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- CN202880885U CN202880885U CN 201220427560 CN201220427560U CN202880885U CN 202880885 U CN202880885 U CN 202880885U CN 201220427560 CN201220427560 CN 201220427560 CN 201220427560 U CN201220427560 U CN 201220427560U CN 202880885 U CN202880885 U CN 202880885U
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- tin anhydride
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- selenium dioxide
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Abstract
The utility model discloses novel selenium dioxide production equipment, and relates to the technical field of chemical equipment. A sintering furnace is connected with a subliming furnace; the subliming furnace is mutually connected with an oxidizing furnace through a communicating pipe; the oxidizing furnace is connected with a buffer tank; the buffer tank is connected with a collector; the collector is respectively connected with a washing device and a product purifying device; the washing device, a selenium dioxide gas reduction device, a solid-liquid separator and a filtrate storage tank are orderly connected; the filtrate storage tank is connected with a heating concentration device; the heating concentration device is respectively connected with a product acid storage tank and an alkaline tower; and the alkaline tower is connected with a pickling tower. A boiler is replaced by an advanced electric oxidizing furnace; the tail gas is dedusted and purified by the pickling tower and the alkaline tower; the purity of the product is high; the requirement of industrial clean production is achieved; a secondary oxidizing system is added; a selenium dioxide gas treatment device is led in to achieve the requirement of industrial clean production; the purity of a selenium dioxide product is improved; the consumed oxygen is reduced, and clean pollution-free production is achieved.
Description
Technical field:
The utility model relates to technical field of chemical, is specifically related to a kind of novel tin anhydride production unit.
Background technology:
Guangxi is one of major production areas of electrolytic manganese, tin anhydride is the catalyzer of producing Manganse Dioxide, traditional production tin anhydride is nitric acid oxidation method, the nitric acid oxidation method technical process is long, nitric acid oxidation is discharged a large amount of oxynitrides, toxic to human body, and traditional oxidation style production technique weak point is that direct heat selenium can make selenium evaporate in a large number, selenium has little time to react with oxygen in oxidising process, cause oxidation incomplete, also can produce simultaneously tin anhydride parcel selenium simple substance, so that quality product does not reach requirement.
The utility model content:
The purpose of this utility model provides a kind of novel tin anhydride production unit, it adopts advanced electrooxidation stove to substitute boiler, adopt pickling tower and soda-wash tower udst separation tail gas, product purity is high, and reaches the requirement of industrialization cleaner production, increase the secondary oxidation system, introduce the tin anhydride gas treatment equipment, reach the requirement of industrialization cleaner production, the purity of tin anhydride product is improved, oxygen-consumption reduces, and realizes cleanliness without any pollution production.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises sintering oven 1, subliming furnace 2, oxidized still 3, surge tank 4, collector 5, washing device 6, tin anhydride gas reduction device 7, solid-liquid separator 8, filtrate storage tank 9, heating concentration device 10, soda-wash tower 11, pickling tower 12, finished acid storage tank 13 and purifying products device 14, sintering oven 1 is connected with subliming furnace 2, subliming furnace 2 and oxidized still 3 interconnect by communicating pipe 2-1, and oxidized still 3 is connected with surge tank 4, surge tank 4 is connected with collector 5, collector 5 is connected with the purifying products device with washing device 6 respectively and is connected, washing device 6, tin anhydride gas reduction device 7, solid-liquid separator 8 is connected with the filtrate storage tank successively and is connected, filtrate storage tank 9 is connected with heating concentration device 10, heating concentration device 10 is connected with soda-wash tower with finished acid storage tank 13 respectively and is connected, and soda-wash tower 11 is connected with pickling tower 12.
Described communicating pipe 2-1 is arc, interconnective two communicating pipe 2-1 put into circular between subliming furnace 2 and the oxidized still 3, the design of arc can fully prolong the duration of contact of oxygen and selenium steam, thereby make oxidation more abundant, oxidized still 2 is communicated with also with subliming furnace 3 circulations so that be that oxidized selenium steam cycle contacts oxygen, can also reduce oxygen-consumption when improving raw material availability, reduce production costs.
Described soda-wash tower 11 and pickling tower 12 udst separation tail gas, major part is absorbed behind overpickling tower 12 and soda-wash tower 11, and gaseous emission is realized low the pollution, the low emission effect, thus reach the free of contamination purpose of cleaner production.
Described tin anhydride reducing apparatus 7 comprises refrigerating unit 7-1, tin anhydride washing device 7-2 and reduction reaction can 7-3, refrigerating unit 7-1, tin anhydride washing device 7-2 are connected with reduction reaction can 7-3 and are connected, be converted into selenic acid after the tin anhydride washing, with the sulfur dioxide gas precursor reactant that passes into, generate selenium simple substance and sulfuric acid, through solid-liquid separator 8 both are separated afterwards, it is concentrated that isolated sulfuric acid can be proceeded heating, put into basin after reaching certain technique concentration, reuse or sell as finished acid.
The utlity model has following beneficial effect: it adopts advanced electrooxidation stove to substitute boiler, adopt pickling tower and soda-wash tower udst separation tail gas, product purity is high, and reach the requirement of industrialization cleaner production, increase the secondary oxidation system, introduce the tin anhydride gas treatment equipment, reach the requirement of industrialization cleaner production, the purity of tin anhydride product is improved, and oxygen-consumption reduces, and realizes cleanliness without any pollution production.
Description of drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of tin anhydride reducing apparatus in the utility model.
Embodiment:
With reference to Fig. 1-2, this embodiment is taked following technical scheme: it comprises sintering oven 1, subliming furnace 2, oxidized still 3, surge tank 4, collector 5, washing device 6, tin anhydride gas reduction device 7, solid-liquid separator 8, filtrate storage tank 9, heating concentration device 10, soda-wash tower 11, pickling tower 12, finished acid storage tank 13 and purifying products device 14, sintering oven 1 is connected with subliming furnace 2, subliming furnace 2 and oxidized still 3 interconnect by communicating pipe 2-1, and oxidized still 3 is connected with surge tank 4, surge tank 4 is connected with collector 5, collector 5 is connected with the purifying products device with washing device 6 respectively and is connected, washing device 6, tin anhydride gas reduction device 7, solid-liquid separator 8 is connected with the filtrate storage tank successively and is connected, filtrate storage tank 9 is connected with heating concentration device 10, heating concentration device 10 is connected with soda-wash tower with finished acid storage tank 13 respectively and is connected, and soda-wash tower 11 is connected with pickling tower 12.
Described communicating pipe 2-1 is arc, interconnective two communicating pipe 2-1 put into circular between subliming furnace 2 and the oxidized still 3, the design of arc can fully prolong the duration of contact of oxygen and selenium steam, thereby make oxidation more abundant, oxidized still 2 is communicated with also with subliming furnace 3 circulations so that be that oxidized selenium steam cycle contacts oxygen, can also reduce oxygen-consumption when improving raw material availability, reduce production costs.
Described soda-wash tower 11 and pickling tower 12 udst separation tail gas, major part is absorbed behind overpickling tower 12 and soda-wash tower 11, and gaseous emission is realized low the pollution, the low emission effect, thus reach the free of contamination purpose of cleaner production.
Described tin anhydride reducing apparatus 7 comprises refrigerating unit 7-1, tin anhydride washing device 7-2 and reduction reaction can 7-3, refrigerating unit 7-1, tin anhydride washing device 7-2 are connected with reduction reaction can 7-3 and are connected, be converted into selenic acid after the tin anhydride washing, with the sulfur dioxide gas precursor reactant that passes into, generate selenium simple substance and sulfuric acid, through solid-liquid separator 8 both are separated afterwards, it is concentrated that isolated sulfuric acid can be proceeded heating, put into basin after reaching certain technique concentration, reuse or sell as finished acid.
This embodiment has following beneficial effect: it adopts advanced electrooxidation stove to substitute boiler, adopt pickling tower and soda-wash tower udst separation tail gas, product purity is high, and reach the requirement of industrialization cleaner production, increase the secondary oxidation system, introduce the tin anhydride gas treatment equipment, reach the requirement of industrialization cleaner production, the purity of tin anhydride product is improved, and oxygen-consumption reduces, and realizes cleanliness without any pollution production.
Claims (3)
1. novel tin anhydride production unit, it comprises sintering oven (1), subliming furnace (2), oxidized still (3), surge tank (4), collector (5), washing device (6), tin anhydride gas reduction device (7), solid-liquid separator (8), filtrate storage tank (9), heating concentration device (10), soda-wash tower (11), pickling tower ((12), finished acid storage tank (13) and purifying products device (14), sintering oven (1) is connected with subliming furnace (2), subliming furnace (2) and oxidized still (3) interconnected by communicating pipe (2-1), and oxidized still (3) is connected with surge tank (4), surge tank (4) is connected with collector (5), collector (5) is connected 14 with washing device (6) with the purifying products device respectively) be connected, washing device (6), tin anhydride gas reduction device (7), solid-liquid separator (8) is connected 9 with the filtrate storage tank) connect successively, filtrate storage tank (9) is connected with heating concentration device (10), heating concentration device (10) is connected 11 with finished acid storage tank (13) with soda-wash tower respectively) be connected, soda-wash tower (11) is connected with pickling tower (12).
2. a kind of novel tin anhydride production unit according to claim 1, it is characterized in that described communicating pipe (2-1) being arc, interconnective two communicating pipe (2-1) put into circular between subliming furnace (2) and the oxidized still (3).
3. a kind of novel tin anhydride production unit according to claim 1, it is characterized in that tin anhydride reducing apparatus (7) comprises refrigerating unit (7-1), tin anhydride washing device (7-2) and reduction reaction can (7-3), refrigerating unit (7-1), tin anhydride washing device (7-2) are connected 7-3 with reduction reaction can) connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427560 CN202880885U (en) | 2012-08-27 | 2012-08-27 | Novel selenium dioxide production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427560 CN202880885U (en) | 2012-08-27 | 2012-08-27 | Novel selenium dioxide production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202880885U true CN202880885U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220427560 Expired - Fee Related CN202880885U (en) | 2012-08-27 | 2012-08-27 | Novel selenium dioxide production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202880885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998675A (en) * | 2021-09-15 | 2022-02-01 | 连州市拓胜新能源有限公司 | Selenium dioxide continuous production process and equipment |
-
2012
- 2012-08-27 CN CN 201220427560 patent/CN202880885U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998675A (en) * | 2021-09-15 | 2022-02-01 | 连州市拓胜新能源有限公司 | Selenium dioxide continuous production process and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20140827 |
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| EXPY | Termination of patent right or utility model |