CN114408871A - Heat recovery device for sulfur acid production - Google Patents
Heat recovery device for sulfur acid production Download PDFInfo
- Publication number
- CN114408871A CN114408871A CN202210109302.7A CN202210109302A CN114408871A CN 114408871 A CN114408871 A CN 114408871A CN 202210109302 A CN202210109302 A CN 202210109302A CN 114408871 A CN114408871 A CN 114408871A
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- CN
- China
- Prior art keywords
- acid
- sulfur
- cooler
- medium
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002253 acid Substances 0.000 title claims abstract description 103
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 18
- 239000011593 sulfur Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 13
- 230000007306 turnover Effects 0.000 claims abstract description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 3
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 abstract description 20
- 238000013019 agitation Methods 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 description 16
- 239000007788 liquid Substances 0.000 description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/80—Apparatus
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/80—Apparatus
- C01B17/806—Absorbers; Heat exchangers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of sulfuric acid preparation, in particular to a heat energy recovery device for sulfur acid preparation production, which comprises a spray absorption tower, an agitation tank, an acid liquor turnover tank and an acid cooler, wherein the bottom of the spray absorption tower is communicated with the agitation tank through a first pipeline; the heat exchange medium inlet of the acid cooler is connected with the medium leading-in pipe, and the heat exchange medium outlet of the acid cooler is connected with the medium leading-out pipe. The invention can recycle the heat generated by absorbing the sulfur trioxide gas after the combustion conversion of the incinerator, thereby saving energy.
Description
Technical Field
The invention relates to the technical field of sulfur-based acid production, in particular to a heat recovery device for sulfur-based acid production.
Background
The conventional production process for preparing acid from sulfur comprises the steps of generating sulfur dioxide by high-temperature combustion of atomized sulfur in an incinerator, converting the sulfur dioxide into sulfur trioxide under the action of a catalyst, enabling sulfur trioxide gas formed after conversion to have high temperature, entering a spraying absorption tower to spray and absorb the sulfur trioxide by adopting an acid solution, enabling the sulfur trioxide to be dissolved in the acid solution to form concentrated acid, enabling the high-temperature sulfur trioxide to be absorbed to be changed into acid solution and then still have higher heat to be taken away by circulating water, and causing waste of heat energy.
Disclosure of Invention
Aiming at the problem of heat waste in the prior art, the invention provides the heat energy recovery device for the production of the sulfuric acid, which can recycle the heat carried by the sulfur trioxide gas after combustion conversion in the incinerator and save energy.
The invention provides a heat energy recovery device for sulfur acid production, which comprises a spray absorption tower, an agitation tank, an acid liquor turnover tank and an acid cooler, wherein the bottom of the spray absorption tower is communicated with the agitation tank through a first pipeline; the heat exchange medium inlet of the acid cooler is connected with the medium leading-in pipe, and the heat exchange medium outlet of the acid cooler is connected with the medium leading-out pipe.
Furthermore, a circulating pump is arranged on the third pipeline, and can pump the acid liquor stored in the acid liquor turnover tank to the spraying absorption tower for spraying. Further, the circulation pump is a submerged circulation pump.
Furthermore, an acid liquor uniform distribution acid separation device is arranged on the third pipeline, so that the acid liquor after absorbing sulfur trioxide is discharged after being uniformly distributed.
Furthermore, the stirring tank is provided with a water inlet pipe, purified water can be introduced into the water inlet pipe to prepare the concentration of the spraying liquid, and the over-high saturation of the acid liquid concentration after the spraying liquid absorbs acid gas is prevented. The water inlet pipe is provided with an electromagnetic valve.
Furthermore, the acid liquor turnover tank is provided with a stirring mechanism, so that the acid liquor is stirred, and the concentration is more uniform.
Furthermore, the bottom of the acid cooler is provided with a drain outlet which can discharge acidic dirty liquid in the acid cooler.
Furthermore, the invention also comprises an incinerator and a blower, wherein the incinerator is provided with an air inlet which is connected with the medium delivery pipe, and the blower is connected with the medium delivery pipe. The heat exchange medium in the acid cooler is air, the air blower blows air with lower temperature into the acid cooler, the temperature of the air is increased after heat exchange with the acid liquor, the air with high temperature is blown into the incinerator to promote combustion of sulfur, and recycling of energy is achieved.
Further, the stirring tank is provided with an acid concentration online detector. The on-line detection device is used for detecting the concentration of acid liquor in the stirring tank on line.
The invention has the beneficial effects that:
(1) according to the invention, the sprayed acid liquid in the spray absorption tower can be guided into the acid cooler, the sprayed acid liquid has higher temperature after absorbing sulfur trioxide, the sprayed acid liquid exchanges heat with the heat exchange medium in the acid cooler, and the heat exchange medium guides out and utilizes the heat, so that the heat is recycled, and the heat is saved;
(2) the invention is provided with the stirring tank, can be uniformly stirred after adding water into the sprayed acid liquor, and is beneficial to the adjustment and preparation of the concentration of the sprayed acid liquor;
(3) the acid liquor circulating tank is arranged, can temporarily store sprayed acid liquor and is used for storage and circulation when the sprayed acid liquor is excessive.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure, 1-a spray absorption tower, 2-a third pipeline, 3-a circulating pump, 4-an acid liquid uniform distribution acid distribution device, 5-an acid liquid turnover tank, 6-a medium leading-in pipe, 7-an acid cooler, 8-a stirring tank, 9-a water inlet pipe, 10-a first pipeline, 11-a second pipeline, 12-a medium leading-out pipe, 13-a blower, 14-an incinerator and 15-an air inlet.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the heat energy recovery device for producing acid by sulfur provided by the invention comprises a spray absorption tower 1, an agitation tank 8, an acid liquor turnover tank 5 and an acid cooler 7, wherein the bottom of the spray absorption tower 1 is communicated with the agitation tank 8 through a first pipeline 10, the acid cooler 7 is provided with an acid liquor inlet, an acid liquor outlet, a heat exchange medium inlet and a heat exchange medium outlet, the bottom of the agitation tank 8 is connected with the acid liquor inlet of the acid cooler 7 through a pipeline, the acid liquor outlet of the acid cooler 7 is connected with the acid liquor turnover tank 5 through a second pipeline 11, and the acid liquor turnover tank 5 is connected with a spray head of the spray absorption tower 1 through a third pipeline 2; the heat exchange medium inlet of the acid cooler 7 is connected with the medium leading-in pipe 6, and the heat exchange medium outlet of the acid cooler 7 is connected with the medium leading-out pipe 12.
A circulating pump 3 is arranged on the third pipeline 2. An acid liquor uniform distribution acid-distributing device 4 is arranged on the third pipeline 2.
The stirring tank 8 is provided with a water inlet pipe 9. The water inlet pipe 9 is provided with an electromagnetic valve. The stirring tank 8 is provided with an acid concentration on-line detector for on-line detection of the concentration of the acid liquid in the stirring tank 8. The acid concentration on-line detector is interlocked and coupled with the electromagnetic valve to ensure the stability of acid concentration.
The acid liquor turnover tank 5 is provided with a stirring mechanism. The bottom of the acid cooler 7 is provided with a sewage outlet.
As shown in figure 1, the working process of the invention is that firstly, spraying acid liquor with a certain concentration can be prepared in a stirring tank 8, the spraying acid liquor enters an acid liquor turnover tank 5 for temporary storage, the spraying acid liquor enters a spraying absorption tower 1 for spraying under the action of a circulating pump 3, sulfur trioxide with high temperature enters the spraying absorption tower 1 for spraying and absorption, the spraying acid liquor enters an acid cooler 7, a heat exchange medium in the acid cooler 7 is water, after the spraying acid liquor exchanges heat with the water, the water with temperature is led out for reuse, the spraying acid liquor after heat exchange enters the acid liquor turnover tank 5 for temporary storage, and the operation is repeated to realize circular spraying.
Example 2
As shown in fig. 2, the present embodiment is different from embodiment 1 in that the present embodiment further includes an incinerator 14 and a blower 13, the incinerator 14 is provided with an air inlet 15, the air inlet 15 is connected to the medium outlet pipe 12, and the blower 13 is connected to the medium inlet pipe. The heat exchange medium in the acid cooler 7 is air, the acid cooler 7 is a shell-and-tube acid cooler, the air in the acid cooler 7 passes through a tube pass, the acid liquid passes through a shell pass, the air blower 13 blows air with lower temperature into the acid cooler 7, the temperature of the air is increased after heat exchange with the acid liquid, the air with high temperature is blown into the incinerator 14 to promote combustion of sulfur, and recycling of energy is achieved.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention.
Claims (9)
1. A heat energy recovery device for sulfur acid production is characterized by comprising a spray absorption tower, a stirring tank, an acid liquor turnover tank and an acid cooler, wherein the bottom of the spray absorption tower is communicated with the stirring tank through a first pipeline; the heat exchange medium inlet of the acid cooler is connected with the medium leading-in pipe, and the heat exchange medium outlet of the acid cooler is connected with the medium leading-out pipe.
2. The heat recovery device for producing acid from sulfur according to claim 1, wherein the third pipeline is provided with a circulating pump, and the circulating pump is a submerged circulating pump.
3. The heat recovery device for sulfuric acid production according to claim 1, wherein the third pipeline is provided with an acid distributing device for distributing acid evenly.
4. The apparatus for recovering heat energy from sulfur-producing acid production according to claim 1, wherein the stirring tank is provided with a water inlet pipe, and the water inlet pipe is provided with an electromagnetic valve.
5. The apparatus for recovering heat energy from sulfur-based acid production according to claim 1, wherein the acid liquor turnover tank is provided with a stirring mechanism.
6. The apparatus for recovering heat energy from sulfur-producing acid as claimed in claim 1, wherein a drain outlet is provided at the bottom of the acid cooler.
7. The apparatus for recovering heat energy from sulfur acid production according to claim 1, wherein the medium introduced by the medium introducing pipe is one of water, heat transfer oil or air.
8. The apparatus for recovering heat energy from sulfur-producing acid production according to claim 1, further comprising an incinerator and a blower, wherein the incinerator is provided with an air inlet, the air inlet is connected with the medium outlet pipe, and the blower is connected with the medium inlet pipe.
9. The heat recovery device for sulfuric acid production according to claim 1, wherein the stirring tank is provided with an acid concentration online detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210109302.7A CN114408871A (en) | 2022-01-28 | 2022-01-28 | Heat recovery device for sulfur acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210109302.7A CN114408871A (en) | 2022-01-28 | 2022-01-28 | Heat recovery device for sulfur acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114408871A true CN114408871A (en) | 2022-04-29 |
Family
ID=81278916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210109302.7A Pending CN114408871A (en) | 2022-01-28 | 2022-01-28 | Heat recovery device for sulfur acid production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114408871A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001130902A (en) * | 1999-11-01 | 2001-05-15 | Sumitomo Metal Mining Co Ltd | Sulfuric acid production system |
| US6279514B1 (en) * | 2000-08-07 | 2001-08-28 | Timothy J. Browder | Method of recovering heat in sulfuric acid production plant |
| US20140322125A1 (en) * | 2013-03-15 | 2014-10-30 | Mecs, Inc. | Recovery of sulfur trioxide heat of absorption |
| CN104495757A (en) * | 2015-01-06 | 2015-04-08 | 东华工程科技股份有限公司 | System for removing low-temperature thermal energy generated during adsorption of SO3 from sulfuric acid production device |
| CN104773711A (en) * | 2015-03-27 | 2015-07-15 | 南京梅山冶金发展有限公司 | Recovery equipment and recovery method of pyrite-based sulfuric acid production dry absorption work section waste heat |
| CN206580558U (en) * | 2017-02-27 | 2017-10-24 | 吉林市龙宽工贸有限责任公司 | Waste-heat recovery device in acid production with sulphur |
| CN209226583U (en) * | 2018-12-12 | 2019-08-09 | 山东明大化学科技股份有限公司 | A kind of tail gas of acid production with sulphur prepares the device of sulphur |
-
2022
- 2022-01-28 CN CN202210109302.7A patent/CN114408871A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001130902A (en) * | 1999-11-01 | 2001-05-15 | Sumitomo Metal Mining Co Ltd | Sulfuric acid production system |
| US6279514B1 (en) * | 2000-08-07 | 2001-08-28 | Timothy J. Browder | Method of recovering heat in sulfuric acid production plant |
| US20140322125A1 (en) * | 2013-03-15 | 2014-10-30 | Mecs, Inc. | Recovery of sulfur trioxide heat of absorption |
| CN104495757A (en) * | 2015-01-06 | 2015-04-08 | 东华工程科技股份有限公司 | System for removing low-temperature thermal energy generated during adsorption of SO3 from sulfuric acid production device |
| CN104773711A (en) * | 2015-03-27 | 2015-07-15 | 南京梅山冶金发展有限公司 | Recovery equipment and recovery method of pyrite-based sulfuric acid production dry absorption work section waste heat |
| CN206580558U (en) * | 2017-02-27 | 2017-10-24 | 吉林市龙宽工贸有限责任公司 | Waste-heat recovery device in acid production with sulphur |
| CN209226583U (en) * | 2018-12-12 | 2019-08-09 | 山东明大化学科技股份有限公司 | A kind of tail gas of acid production with sulphur prepares the device of sulphur |
Non-Patent Citations (1)
| Title |
|---|
| 朱丹;宋鹏云;张春;: "硫酸生产低温位热能回收关键泵密封技术进展", 《云南化工》, no. 05, pages 25 - 28 * |
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