CN103043624B - Device for producing sulfuric acid by using gypsum - Google Patents
Device for producing sulfuric acid by using gypsum Download PDFInfo
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- CN103043624B CN103043624B CN201210578984.2A CN201210578984A CN103043624B CN 103043624 B CN103043624 B CN 103043624B CN 201210578984 A CN201210578984 A CN 201210578984A CN 103043624 B CN103043624 B CN 103043624B
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- pipe
- sulfuric acid
- calcining kiln
- gypsum
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Abstract
A device for producing sulfuric acid by using gypsum comprises a calcining kiln, a humidifying room, a reaction room, a condensation pipe and a sulfuric acid receiver, wherein a spiral preheating pipe is arranged on the outer wall of the calcining kiln; the lower end of the spiral preheating pipe is connected with a discharging hopper which is provided with a blower nozzle; a spiral preheating pipe at the upper part of the calcining kiln is provided with a discharging port; the top of the calcining kiln is connected with the humidifying room through a pipe which is provided with a gas pump; the humidifying room is connected with the reaction room through a pipe; an electronic beam generation device is arranged on the outer wall of the reaction room; an outlet of the reaction room is connected with the condensation pipe through a pipe; and the top of the condensation pipe is connected with the gas pump through a pipe, and the bottom of the condensation pipe is connected with the sulfuric acid receiver. Through adoption of the device for producing the sulfuric acid by using the gypsum, whole reaction process space is totally sealed, no solid fuel is adopted, and no secondary pollution impurity is introduced in, so that the energy conservation and the environmental friendliness are achieved; and the absorptivity of sulfur dioxide is high up to 99 percent.
Description
Technical field
The present invention relates to a kind of sulfuric acid production plant, especially relate to a kind of device utilizing producing sulfate acid from gypsum.
Background technology
Current China gas washing in SA production is raw material mainly with sulphur or sulfurous iron ore, and along with the minimizing increasingly of sulphur and ferro-sulphur ore, price also goes up thereupon, and gas washing in SA production cost raises gradually.Find new raw material production sulfuric acid imperative.Simultaneously along with the improvement of gas washing in SA production material and technology, also there is the development trend of diversification in the equipment for the production of sulfuric acid.
Chinese invention patent application 200580008034.4 discloses a kind of device preparing sulfuric acid, it adopts secondary absorption equipment, mainly comprise primary absorber and secondary resorber, but this equipment inherently can not solve the pollution problem of discharging waste gas to environment.
Chinese invention patent application 201010208303.4 discloses SO in a kind of reduction sulfuric-acid production tail gas
2the method of content, this invention sets up the tail gas desulfurization device be made up of adsorption tower and desorption tower between existing sulfuric acid apparatus second acid absorption column to exhaust emissions chimney, the activated coke wherein adopted can recycle, but adopts this equipment cannot absorb SO in tail gas in a large number
2, SO in tail gas
2content reduces limited extent, thoroughly can not solve the pollution problem to environment.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiencies in the prior art, and provide a kind of and do not introduce new impurity, energy consumption is lower, the device utilizing producing sulfate acid from gypsum of the discharge minimizing of obnoxious flavour.
The technical scheme that the present invention solves the employing of its technical problem is:
Utilize a device for producing sulfate acid from gypsum, comprise calcining kiln, humid cabinet, reaction chamber, prolong, sulfuric acid receptor, the outer wall of described calcining kiln is provided with spiral preheating pipe, and the lower end of spiral preheating pipe is connected to the hopper of band blast orifice; The spiral preheating pipe on calcining kiln top is provided with discharge port (being also the opening for feed of calcining kiln), the top of calcining kiln is connected with humid cabinet by the pipeline with gas pump, humid cabinet is connected with reaction chamber by pipeline, and the outer wall of described reaction chamber is provided with electron beam generating apparatus; The outlet of reaction chamber is connected with prolong by pipeline, and prolong top is connected with gas pump by pipeline, is connected bottom prolong with sulfuric acid receptor.
Working process:
Powder gypsum is added in hopper, in spiral preheating pipe, blast air by blast orifice simultaneously, powder gypsum is blown in calcining kiln along spiral preheating pipe, in spiral preheating pipe, gypsum is heated to 200-800 DEG C, sloughs crystal water and generates anhydrous calciumsulphate, anhydrous calciumsulphate enters calcining kiln by spiral preheating pipe, 800-2000 DEG C of calcining in calcining kiln, anhydrous calciumsulphate decomposes generation sulfurous gas, oxygen and calcium oxide, the mixed gas such as sulfurous gas and oxygen imports humid cabinet humidification by gas pump, mixed gas after humidification in humid cabinet is passed into reaction chamber, start electron beam generating apparatus, mixed gas reacts and generates sulfuric acid (gaseous state) under the strong bombardment effect of electron beam, mixed gas in reaction chamber is passed in prolong, sulfuric acid is at prolong internal reflux and enter sulfuric acid receptor, the gas of uncooled backflow is back to gas pump circulating reaction from the top of prolong.
Mixed gas reacts and generates the flow process of sulfuric acid under the strong bombardment effect of electron beam:
Use the device utilizing producing sulfate acid from gypsum of the present invention, whole reaction process space is completely closed, does not adopt solid fuel, does not introduce secondary pollution impurity, energy-conserving and environment-protective, and the specific absorption of sulfurous gas is up to 99%.
Accompanying drawing explanation
Fig. 1 is the structural representation utilizing the device embodiment of producing sulfate acid from gypsum of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
With reference to accompanying drawing, the present embodiment comprises calcining kiln 3, humid cabinet 7, reaction chamber 8, prolong 10, sulfuric acid receptor 11, and the outer wall of described calcining kiln 3 is provided with spiral preheating pipe 4, and the lower end of spiral preheating pipe 4 is connected to the hopper 2 of band blast orifice 1; The spiral preheating pipe on calcining kiln 3 top is provided with the opening for feed that discharge port 5(is also calcining kiln), the top of calcining kiln 3 is connected with humid cabinet 7 by the pipeline with gas pump 6, humid cabinet 7 is connected with reaction chamber 8 by pipeline, and the outer wall of described reaction chamber 8 is provided with electron beam generating apparatus 9; The outlet of reaction chamber 8 is connected with prolong 10 by pipeline, and the top of prolong 10 is connected with gas pump 6 by pipeline, is connected bottom prolong 10 with sulfuric acid receptor 11.
Working process:
Powder gypsum is added in hopper 2, in spiral preheating pipe 4, blast air by blast orifice 1 simultaneously, powder gypsum is blown in calcining kiln 3, in spiral preheating pipe 4 along spiral preheating pipe 4, gypsum is heated to 400 DEG C, sloughs crystal water and generates anhydrous calciumsulphate, anhydrous calciumsulphate enters calcining kiln 3 by spiral preheating pipe 4, calcine at 1200 DEG C in calcining kiln 3, anhydrous calciumsulphate decomposes generation sulfurous gas, oxygen and calcium oxide, the mixed gas such as sulfurous gas and oxygen imports humid cabinet 7 by gas pump 6 and is humidified, mixed gas after humidification in humid cabinet 7 is passed into reaction chamber 8, start electron beam generating apparatus 9, following reaction is there is and generates sulfuric acid (gaseous state) in mixed gas under the strong bombardment effect of electron beam, mixed gas in reaction chamber 8 is passed in prolong 10, sulfuric acid is at prolong 10 internal reflux and enter sulfuric acid receptor 11, the gas of uncooled backflow is back to gas pump 6 circulating reaction from the top of prolong 10.
Mixed gas reacts and generates the flow process of sulfuric acid under the strong bombardment effect of electron beam:
Use the device utilizing producing sulfate acid from gypsum of the present invention, whole reaction process space is completely closed, does not adopt solid fuel, does not introduce secondary pollution impurity, energy-conserving and environment-protective, and the specific absorption of sulfurous gas is up to 99%.
Claims (1)
1. one kind utilizes the device of producing sulfate acid from gypsum, it is characterized in that, comprise calcining kiln, humid cabinet, reaction chamber, prolong, sulfuric acid receptor, the outer wall of described calcining kiln is provided with spiral preheating pipe, and the lower end of spiral preheating pipe is connected to the hopper of band blast orifice; The spiral preheating pipe on calcining kiln top is provided with discharge port, and the top of calcining kiln is connected with humid cabinet by the pipeline with gas pump, and humid cabinet is connected with reaction chamber by pipeline, and the outer wall of described reaction chamber is provided with electron beam generating apparatus; The outlet of reaction chamber is connected with prolong by pipeline, and prolong top is connected with gas pump by pipeline, is connected bottom prolong with sulfuric acid receptor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210578984.2A CN103043624B (en) | 2012-12-28 | 2012-12-28 | Device for producing sulfuric acid by using gypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210578984.2A CN103043624B (en) | 2012-12-28 | 2012-12-28 | Device for producing sulfuric acid by using gypsum |
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| Publication Number | Publication Date |
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| CN103043624A CN103043624A (en) | 2013-04-17 |
| CN103043624B true CN103043624B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210578984.2A Active CN103043624B (en) | 2012-12-28 | 2012-12-28 | Device for producing sulfuric acid by using gypsum |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826510B (en) * | 2015-01-22 | 2017-09-29 | 成都国化环保科技有限公司 | A kind of humidifier for being used to be humidified containing sulfur dioxide gas |
| CN112984784A (en) * | 2021-02-05 | 2021-06-18 | 陕西翼飞航智能科技有限公司 | Based on SO2And O2CaSO of plasma hot blast stove4Decomposition and decomposed gas recovery system and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2905083A1 (en) * | 1979-02-10 | 1980-08-28 | Metallgesellschaft Ag | METHOD FOR THE PRODUCTION OF SULFURIC ACID |
| US7799310B2 (en) * | 2006-04-07 | 2010-09-21 | The Trustees Of Columbia University In The City Of New York | Systems and methods for generating sulfuric acid |
| CN102838153B (en) * | 2012-09-20 | 2014-10-15 | 刘立文 | Method for producing vitriol and calcium oxide by decomposing gypsum |
| CN202968114U (en) * | 2012-12-28 | 2013-06-05 | 刘立文 | Device for producing sulfuric acid by gypsum |
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Effective date of registration: 20160829 Address after: An Industrial Park Economic Development Zone, Changde City, Hunan province Linli County 415200 Patentee after: Hunan Fu Xiang new type building material Co., Ltd. Address before: 410005, 12 floor, Haidong mansion, Furong Road, Changsha, Hunan Patentee before: Liu Liwen |