CN103043624A - Device for producing sulfuric acid by using gypsum - Google Patents
Device for producing sulfuric acid by using gypsum Download PDFInfo
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- CN103043624A CN103043624A CN2012105789842A CN201210578984A CN103043624A CN 103043624 A CN103043624 A CN 103043624A CN 2012105789842 A CN2012105789842 A CN 2012105789842A CN 201210578984 A CN201210578984 A CN 201210578984A CN 103043624 A CN103043624 A CN 103043624A
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- 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 that utilizes 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 increasingly minimizing of sulphur and ferro-sulphur ore, price also goes up thereupon, and the gas washing in SA production cost raises gradually.It is imperative to seek new raw material production sulfuric acid.Along with the improvement of gas washing in SA production material and technology, the development trend of diversification has also appearred simultaneously for the production of the equipment of sulfuric acid.
Chinese invention patent application 200580008034.4 discloses a kind of device for preparing sulfuric acid, it adopts the secondary absorption equipment, mainly comprise primary absorber and secondary resorber, but this equipment can not be from solving discharging waste gas to the pollution problem of environment in essence.
Chinese invention patent application 201010208303.4 discloses SO in a kind of reduction sulfuric-acid production tail gas
2The method of content, this invention at existing sulfuric acid apparatus the second acid absorption column to setting up the tail gas desulfurizer that is formed by adsorption tower and desorption tower between the exhaust emissions chimney, the activated coke that wherein adopts can recycle, but adopts the in a large number SO in the absorption tail gas of this equipment
2, SO in the tail gas
2The content amplitude is limited, can not thoroughly 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 a kind of new impurity of not introducing is provided, and energy consumption is lower, the device that utilizes producing sulfate acid from gypsum that the discharging of obnoxious flavour reduces.
The technical scheme that the present invention solves its technical problem employing is:
A kind of device that utilizes producing sulfate acid from gypsum comprises calcining kiln, humid cabinet, reaction chamber, prolong, sulfuric acid receptor, and the outer wall of described calcining kiln is provided with the spiral preheating pipe, and the lower end of spiral preheating pipe is connected to the hopper with blast orifice; The spiral preheating pipe on calcining kiln top is provided with discharge port (also being the opening for feed of calcining kiln), the top of calcining kiln links to each other with humid cabinet by the pipeline with gas pump, humid cabinet links to each other 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 links to each other with prolong by pipeline, and the prolong top links to each other with gas pump by pipeline, and the prolong bottom links to each other with the sulfuric acid receptor.
Working process:
Powder gypsum is added in the hopper, in the spiral preheating pipe, blast air by blast orifice simultaneously, powder gypsum is blown in the calcining kiln along the spiral preheating pipe, in the spiral preheating pipe, gypsum is heated to 200-800 ℃, sloughs crystal water and generates anhydrous calciumsulphate; Anhydrous calciumsulphate enters calcining kiln by the spiral preheating pipe, 800-2000 ℃ 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 the humid cabinet humidification by gas pump, mixed gas behind the humidification in the humid cabinet is passed into reaction chamber, start electron beam generating apparatus, mixed gas reacts under the strong bombardment effect of electron beam and generates sulfuric acid (gaseous state), mixed gas in the reaction chamber is passed in the prolong, sulfuric acid is at the prolong internal reflux and enter the sulfuric acid receptor, and the gas of uncooled backflow is back to the gas pump circulating reaction from the top of prolong.
Mixed gas reacts under the strong bombardment effect of electron beam and generates the flow process of sulfuric acid:
Use the present invention's the device that utilizes producing sulfate acid from gypsum, whole reaction process space complete 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%.
Description of drawings
Fig. 1 is the structural representation of the present invention's the device embodiment that utilizes producing sulfate acid from gypsum.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
With reference to accompanying drawing, 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 with blast orifice 1; The spiral preheating pipe on calcining kiln 3 tops is provided with the opening for feed that discharge port 5(also is calcining kiln), the top of calcining kiln 3 links to each other with humid cabinet 7 by the pipeline with gas pump 6, humid cabinet 7 links to each other 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 links to each other with prolong 10 by pipeline, and the top of prolong 10 links to each other with gas pump 6 by pipeline, and prolong 10 bottoms link to each other with sulfuric acid receptor 11.
Working process:
Powder gypsum is added in the hopper 2, in spiral preheating pipe 4, blast air by blast orifice 1 simultaneously, powder gypsum is blown in the calcining kiln 3 along spiral preheating pipe 4, in spiral preheating pipe 4, gypsum is heated to 400 ℃, sloughs crystal water and generates anhydrous calciumsulphate; Anhydrous calciumsulphate enters calcining kiln 3 by spiral preheating pipe 4,1200 ℃ of lower calcinings 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 humidifications by gas pump 6, mixed gas behind the humidification in the humid cabinet 7 is passed into reaction chamber 8, start electron beam generating apparatus 9, following reaction occurs and generates sulfuric acid (gaseous state) in mixed gas under the strong bombardment effect of electron beam, mixed gas in the reaction chamber 8 is passed in the prolong 10, sulfuric acid is at prolong 10 internal reflux and enter sulfuric acid receptor 11, and the gas of uncooled backflow is back to gas pump 6 circulating reactions from the top of prolong 10.
Mixed gas reacts under the strong bombardment effect of electron beam and generates the flow process of sulfuric acid:
Use the present invention's the device that utilizes producing sulfate acid from gypsum, whole reaction process space complete 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. device that utilizes 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 the spiral preheating pipe, and the lower end of spiral preheating pipe is connected to the hopper with blast orifice; The spiral preheating pipe on calcining kiln top is provided with discharge port, and the top of calcining kiln links to each other with humid cabinet by the pipeline with gas pump, and humid cabinet links to each other 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 links to each other with prolong by pipeline, and the prolong top links to each other with gas pump by pipeline, and the prolong bottom links to each other with the 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 true CN103043624A (en) | 2013-04-17 |
| CN103043624B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826510A (en) * | 2015-01-22 | 2015-08-12 | 成都国化环保科技有限公司 | Humidifier for humidifying gas containing SO2 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333917A (en) * | 1979-02-10 | 1982-06-08 | Metallgesellschaft Aktiengesellschaft | Process of producing sulfuric acid |
| WO2007118172A2 (en) * | 2006-04-07 | 2007-10-18 | The Trustees Of Columbia University In The City Of New York | Systems and methods for generating sulfuric acid |
| CN102838153A (en) * | 2012-09-20 | 2012-12-26 | 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 |
-
2012
- 2012-12-28 CN CN201210578984.2A patent/CN103043624B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333917A (en) * | 1979-02-10 | 1982-06-08 | Metallgesellschaft Aktiengesellschaft | Process of producing sulfuric acid |
| WO2007118172A2 (en) * | 2006-04-07 | 2007-10-18 | The Trustees Of Columbia University In The City Of New York | Systems and methods for generating sulfuric acid |
| CN102838153A (en) * | 2012-09-20 | 2012-12-26 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826510A (en) * | 2015-01-22 | 2015-08-12 | 成都国化环保科技有限公司 | Humidifier for humidifying gas containing SO2 |
| 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 |
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| Publication number | Publication date |
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| CN103043624B (en) | 2015-05-20 |
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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 |