CN103058147B - A kind of absorption unit and method utilizing gypsum production sulphur trioxide - Google Patents
A kind of absorption unit and method utilizing gypsum production sulphur trioxide Download PDFInfo
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- CN103058147B CN103058147B CN201310004580.7A CN201310004580A CN103058147B CN 103058147 B CN103058147 B CN 103058147B CN 201310004580 A CN201310004580 A CN 201310004580A CN 103058147 B CN103058147 B CN 103058147B
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Abstract
A kind of absorption unit and method utilizing gypsum production sulphur trioxide, this device comprises acid pump and tubing, the liquid outlet of described acid pump is connected with tubing by flange, described tubing is made up of three sections of pipelines, leading portion pipeline is column structure, the tapered structure of stage casing pipeline, for transition section, back segment pipeline is column structure, the stage casing pipeline of described tubing and the binding site of back segment pipeline are provided with the tracheae for passing into sulfur trioxide gas, are provided with static mixer in the back segment pipeline of described tubing.The present invention also comprises the absorption process utilizing gypsum to produce sulphur trioxide.The present invention utilizes the principle of Venturi effect, coordinates the enhancing mixed effect of static mixer, increases the absorbed dose of sulphur trioxide in absorption liquid, specific absorption >=90% of sulphur trioxide.
Description
Technical field
The present invention relates to a kind of absorption unit and method of sulphur trioxide, especially relate to a kind of absorption unit and the method that utilize gypsum production sulphur trioxide.
Background technology
In sulphuric acid process, the absorption of sulphur trioxide generally adopts water directly to absorb or adopts finite concentration sulfuric acid to absorb.When adopting finite concentration sulfuric acid absorption sulphur trioxide, can release a large amount of heats, the severe corrosive of this heat and sulfuric acid can accelerate the corrosion to absorption tower material, and under high temperature, expellant gas is easy to sulfur trioxide gas to take out of simultaneously; And when absorbing sulphur trioxide with water, also can release a large amount of heats, easily produce acid mist, thus etching apparatus.In addition, this technology is also difficult to completely by sulfur trioxide absorption, and part sulphur trioxide can be discharged in air, contaminate environment.
CN201660444U discloses a kind of fuming sulfuric acid system two-stage absorption unit on December 1st, 2010, this kind of absorption unit comprises nicotinic acid tower, nicotinic acid tower is provided with upper and lower two-stage absorption tower, first step absorption tower is below connected to dense smoke acid circulation groove, absorption tower, the second stage is above connected to rare nicotinic acid circulation groove, absorb through two-stage, the specific absorption of sulphur trioxide can reach 60-65%, but specific absorption is still lower.
CN202164117U discloses a kind of sulfur trioxide absorption reaction unit on March 14th, 2012, mainly comprise sulphur trioxide gas storage tower, reaction tower, liquid absorbing pump, reaction tower upper lateral part and sulphur trioxide gas storage tower pass through pipeline connection, reaction tower top is provided with sulfuric acid fluid inlet, sprinkler head, liquid outlet, liquid return hole are arranged at bottom, liquid return hole is communicated with sprinkler head by liquid absorbing pump, pipeline, is also provided with pH sensor at the liquid return hole of reaction tower.This reaction unit increases sulfuric acid to the absorption of sulphur trioxide by absorbing sulfuric acid to circulate, and its defect existed is that whole process efficiency is too low, is difficult to realize industrialization.
Summary of the invention
Technical problem to be solved by this invention is, provides one not easily to produce acid mist, and what assimilated efficiency was high utilizes gypsum to produce absorption unit and the method for sulphur trioxide.
The technical scheme that the present invention solves the employing of its technical problem is:
The gypsum that utilizes of the present invention produces the absorption unit of sulphur trioxide, comprise acid pump and tubing, the liquid outlet of described acid pump is connected with tubing by flange, described tubing is made up of three sections of pipelines, and leading portion pipeline is column structure, the tapered structure of stage casing pipeline, for transition section, back segment pipeline is column structure, and the stage casing pipeline of described tubing and the binding site of back segment pipeline are provided with the tracheae for passing into sulfur trioxide gas, are provided with static mixer in the back segment pipeline of described tubing.
Further, described leading portion pipeline is (1.5-3) with the ratio of the caliber of back segment pipeline: 1 (preferred 1.8-2.5:1).
Further, the outlet of described static mixer is provided with acid solution discharge nozzle.
The absorption process utilizing gypsum to produce sulphur trioxide of the present invention is: start acid pump, absorption liquid is under the effect of acid pump, through liquid outlet, injection enters tubing, and the stage casing pipeline of tubing makes the flowing of absorption liquid produce Venturi effect, produces negative pressuren zone at tracheae place, sulphur trioxide is inhaled into tubing, and then under the effect of static mixer, sulfurous gas and absorption liquid react, discharge finally by acid solution discharge nozzle.
Further, described absorption liquid is the sulphuric acid soln that water or concentration are greater than 60wt%.
The present invention utilizes the principle of Venturi effect, coordinates the enhancing mixed effect of static mixer, increases the absorbed dose of sulphur trioxide in absorption liquid, specific absorption >=90% of sulphur trioxide.
Accompanying drawing explanation
Fig. 1 is that the gypsum that utilizes of the present embodiment produces the structural representation of the absorption unit of sulphur trioxide.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
With reference to accompanying drawing, the gypsum that utilizes of the present embodiment produces the absorption unit of sulphur trioxide, comprise acid pump 1 and tubing 2, the liquid outlet of described acid pump 1 is connected with tubing 2 by flange, described tubing 2 is made up of three sections of pipelines, leading portion pipeline is column structure, the tapered structure of stage casing pipeline, for transition section, back segment pipeline is column structure, the stage casing pipeline of described tubing 2 and the binding site of back segment pipeline are provided with the tracheae 4 for passing into sulfur trioxide gas, are provided with static mixer 3 in the back segment pipeline of described tubing 2.
Described leading portion pipeline is 2:1 with the ratio of the caliber of back segment pipeline.
The outlet of described static mixer 3 is provided with acid solution discharge nozzle 5.
The absorption process utilizing gypsum to produce sulphur trioxide of the present embodiment is: start acid pump 1, absorption liquid is under the effect of acid pump 1, through liquid outlet, injection enters tubing 2, and the transition section of tubing 2 makes the flowing of absorption liquid produce Venturi effect, produces negative pressuren zone at tracheae 4 place, sulphur trioxide is inhaled into tubing 2, and then under the effect of static mixer 3, sulfurous gas and absorption liquid react, and discharge finally by acid solution discharge nozzle 5.
Described absorption liquid is water.Certainly, described absorption liquid also can be the sulphuric acid soln that concentration is greater than 60wt%.
In the present embodiment, the specific absorption of sulphur trioxide reaches 90%.
Claims (2)
1. the absorption process utilizing gypsum to produce sulphur trioxide, it is characterized in that: the device that the method utilizes comprises acid pump and tubing, the liquid outlet of described acid pump is connected with tubing by flange, described tubing is made up of three sections of pipelines, leading portion pipeline is column structure, the tapered structure of stage casing pipeline, for transition section, back segment pipeline is column structure, the stage casing pipeline of described tubing and the binding site of back segment pipeline are provided with the tracheae for passing into sulfur trioxide gas, static mixer is provided with in the back segment pipeline of described tubing, the outlet of described static mixer is provided with acid solution discharge nozzle,
Concrete absorption process is: start acid pump, absorption liquid is under the effect of acid pump, through liquid outlet, injection enters tubing, and the transition section of tubing makes the flowing of absorption liquid produce Venturi effect, produces negative pressuren zone at tracheae place, sulphur trioxide is inhaled into tubing, and then under the effect of static mixer, sulphur trioxide and absorption liquid react, discharge finally by acid solution discharge nozzle.
2. the absorption process utilizing gypsum to produce sulphur trioxide according to claim 1, is characterized in that: described absorption liquid is the sulphuric acid soln that water or concentration are greater than 60wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004580.7A CN103058147B (en) | 2013-01-07 | 2013-01-07 | A kind of absorption unit and method utilizing gypsum production sulphur trioxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004580.7A CN103058147B (en) | 2013-01-07 | 2013-01-07 | A kind of absorption unit and method utilizing gypsum production sulphur trioxide |
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| CN103058147A CN103058147A (en) | 2013-04-24 |
| CN103058147B true CN103058147B (en) | 2015-08-12 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788043A (en) * | 1970-10-15 | 1974-01-29 | Metallgesellschaft Ag | Absorber for sulfur trioxide |
| CN1384805A (en) * | 1999-11-01 | 2002-12-11 | 孟山都公司 | Method for making sulfur trioxide, sulfuric acid, and oleum from sulfur dioxide |
| CN1930080A (en) * | 2004-03-12 | 2007-03-14 | 奥托昆普技术公司 | Process and plant for producing sulfuric acid |
| CN203128197U (en) * | 2013-01-07 | 2013-08-14 | 刘立文 | Absorption device for producing sulfur trioxide by utilizing gypsum |
-
2013
- 2013-01-07 CN CN201310004580.7A patent/CN103058147B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788043A (en) * | 1970-10-15 | 1974-01-29 | Metallgesellschaft Ag | Absorber for sulfur trioxide |
| CN1384805A (en) * | 1999-11-01 | 2002-12-11 | 孟山都公司 | Method for making sulfur trioxide, sulfuric acid, and oleum from sulfur dioxide |
| CN1930080A (en) * | 2004-03-12 | 2007-03-14 | 奥托昆普技术公司 | Process and plant for producing sulfuric acid |
| CN203128197U (en) * | 2013-01-07 | 2013-08-14 | 刘立文 | Absorption device for producing sulfur trioxide by utilizing gypsum |
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| CN103058147A (en) | 2013-04-24 |
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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 |