CN102328916B - Sulfur dioxide production system controlling furnace gas temperature and furnace gas temperature control method - Google Patents
Sulfur dioxide production system controlling furnace gas temperature and furnace gas temperature control method Download PDFInfo
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- CN102328916B CN102328916B CN2011103100525A CN201110310052A CN102328916B CN 102328916 B CN102328916 B CN 102328916B CN 2011103100525 A CN2011103100525 A CN 2011103100525A CN 201110310052 A CN201110310052 A CN 201110310052A CN 102328916 B CN102328916 B CN 102328916B
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- furnace gas
- sulfur
- thermostatted
- gas
- type furnace
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 20
- 239000007789 gas Substances 0.000 claims abstract description 114
- 239000003546 flue gas Substances 0.000 claims abstract description 42
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 41
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 29
- 239000011593 sulfur Substances 0.000 claims abstract description 29
- 238000009833 condensation Methods 0.000 claims abstract description 26
- 230000005494 condensation Effects 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 230000008676 import Effects 0.000 claims description 23
- 235000010269 sulphur dioxide Nutrition 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 17
- 239000002918 waste heat Substances 0.000 claims description 16
- 239000005864 Sulphur Substances 0.000 claims description 13
- 239000004291 sulphur dioxide Substances 0.000 claims description 9
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000009841 combustion method Methods 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000007906 compression Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention relates to a system and method for producing liquid sulfur dioxide by sulfur-oxygen combustion in the metallurgy and chemical industry, and solves the problem that the sulfur steam in the sulfur dioxide furnace gas easily blocks a condensation purifying system during the production of liquid sulfur dioxide by using the sulfur-oxygen combustion method. In the sulfur dioxide production system controlling furnace gas temperature, a sulfur dioxide furnace gas temperature control device is additionally arranged between a residual heat utilizing boiler and the condensation purifying system, wherein the device is a two-level jacket type furnace gas thermostat. The sulfur dioxide flue gas from the tail of a sulfur burning furnace is input into an inlet of the first-level jacket type furnace gas thermostat; steam, condensation water or hot water is introduced into the jacket from the jacket inlets of the first-level and second-level jacket type furnace gas thermostats, so that the furnace gas temperature at the outlet of the second-level jacket type furnace gas thermostat is kept at 120-140 DEG C; and the sulfur steam is changed into liquid sulfur which flows back to the sulfur burning furnace under the action of gravity. Through the invention, the smooth and continuous production of the system is realized, and the production efficiency and flue gas purity are improved.
Description
Technical field
The present invention relates to metallurgy, chemical industry and produce the production process of sulfur dioxide liquid with " sulphur-oxygen combustion ", particularly produce in the sulfur dioxide liquid production process with pure oxygen and sulfur burning, a kind of sulphur dioxide production system that controls furnace gas temperature the invention still further relates to the control method of sulfurous gas furnace gas temperature.
Background technology
Produce in the sulfurous gas process utilizing pure oxygen burning sulphur technique, from sulfur furnace high temperature sulfurous gas furnace gas out with a large amount of sulfur vapors, these sulfur vapors follow high-temperature furnace gas to enter follow-up condensation cleaning system, when furnace gas temperature in the system is lower than 120 ℃, sulphur steam in the furnace gas in system, easily causes the technology accidents such as the condensation cleaning system is not smooth, obstruction with cooled and solidified.Condensation cleaning of the prior art system mainly is comprised of two portions: water recirculator and iron filings tower strainer.With the water recirculator that the sulfur furnace exit links to each other, be mainly used in reducing the sulfur dioxide flue gas temperature; The follow-up iron filings tower strainer of water recirculator is used for filtering the sulphur steam of flue gas.Because former condensation cleaning system can only pass through water of condensation, the reduction furnace gas temperature could remain on the temperature of purification system between 120 ℃～140 ℃, so easily cause the sulphur steam to solidify, be jammed in the iron filings tower, cleaning will stop production a basic week once, and production can not be continuous, and efficient is lower.
Summary of the invention
Purpose of the present invention is exactly to produce in the process of sulfur dioxide liquid in order to solve " sulphur-oxygen combustion " method, and the sulphur steam in the sulfurous gas furnace gas easily stops up the problem of condensation cleaning system, and a kind of sulphur dioxide production system that controls furnace gas temperature is provided; Another object of the present invention provides the control method of sulfurous gas furnace gas temperature.
The objective of the invention is to be achieved through the following technical solutions:
A kind of sulphur dioxide production system that controls furnace gas temperature, comprise sulfur furnace, Waste-heat boiler, condensation cleaning system, it is characterized in that: add sulfurous gas furnace gas temperature control device between Waste-heat boiler and the condensation cleaning system, this device is secondary jacketed type furnace gas thermostatted; The entrance of first step jacketed type furnace gas thermostatted is connected with Waste-heat boiler, and the entrance of first step jacketed type furnace gas thermostatted also joins with sulfur furnace; Connect by importing and exporting flange between first, second grade furnace gas thermostatted, furnace gas thermostatted outlet in the second stage is joined with the condensation cleaning system.
Jacketed type furnace gas thermostatted is bought by commercial sources.
Realize that another purpose technical scheme of the present invention is: a kind of control method of sulfurous gas furnace gas temperature, will be from the sulfur dioxide flue gas of sulfur furnace afterbody, through Waste-heat boiler, UTILIZATION OF VESIDUAL HEAT IN, reduce after the flue-gas temperature, the import of input first step jacketed type furnace gas thermostatted, temperature according to sulfur dioxide flue gas, by first, the chuck import of second stage jacketed type furnace gas thermostatted passes into steam or water of condensation or hot water in chuck, make the furnace gas temperature of second stage jacketed type furnace gas thermostatted outlet remain on 120 ℃～140 ℃, the sulphur steam becomes liquid sulfur at the furnace gas thermostatted, under action of gravity, flow out and be back in the sulfur furnace from the import of first step jacketed type furnace gas thermostatted.
The present invention has been installed secondary jacketed type furnace gas thermostatted additional as sulfurous gas furnace gas temperature control device between Waste-heat boiler and condensation cleaning system on original sulphur dioxide production line, this apparatus structure is simple.Utilize method provided by the invention, can effectively prevent the sulphur steam subsequent condensation purification system of entering in a large number, the unimpeded production of realization system, serialization production, and then enhance productivity; Realize the recycle of raw material sulphur, reduce simultaneously the content of impurity in the flue gas, improved flue gas purity.
Description of drawings
Fig. 1 controls the sulphur dioxide production system flowchart of furnace gas temperature,
Fig. 2 is secondary jacketed type furnace gas thermostat structure schematic diagram,
Fig. 3 is jacketed type furnace gas thermostatted sectional view.
Among the figure: 1-sulfur furnace, 2-Waste-heat boiler, 3-condensation cleaning system, 4-compression cooling system, 5-sulfurous gas furnace gas temperature control device, 6-first step jacketed type furnace gas thermostatted, 601-import, the import of 602-chuck, 603-chuck, 604-tubulation, 605-overhead gage, 606-lower baffle plate, 607-Jacket outlet, 608-furnace gas export, 7-second stage jacketed type furnace gas thermostatted, 701-import, the import of 702-chuck, 703-chuck, 704-tubulation, 705-overhead gage, 706-lower baffle plate, 707-Jacket outlet, 708-furnace gas export, 8-import and export flange.
Embodiment
Production system embodimentAs shown in Figure 1: a kind of sulphur dioxide production system that controls furnace gas temperature, comprise sulfur furnace 1, Waste-heat boiler 2, condensation cleaning system 3, compression cooling system 4, what compression cooling system 4 was produced is end product sulfurous gas, adds sulfurous gas furnace gas temperature control device 5 between Waste-heat boiler 2 and condensation cleaning system 3; This device 5 is secondary jacketed type furnace gas thermostatteds; The import 601 of first step jacketed type furnace gas thermostatted 6 is connected with Waste-heat boiler 2, and the import 601 of first step jacketed type furnace gas thermostatted 6 is also joined with sulfur furnace 1; Referring to Fig. 2 and Fig. 3: is connected by importing and exporting flange 8 between first step furnace gas thermostatted 6 and the second stage jacketed type furnace gas thermostatted 7, furnace gas export 708 and the condensation cleaning system 4 of second stage jacketed type furnace gas thermostatted 7 join.
Jacketed type furnace gas thermostatted is bought by commercial sources and is obtained.As shown in Figure 3: take first step jacketed type furnace gas thermostatted as example, it mainly leads to the tubulation 604 of furnace gas by the chuck 603 that leads to the temperature control medium and inside and fixedly overhead gage 605 and the lower baffle plate 606 of tubulation form.The tubulation of 40mm is fixed in up and down between two d=1400mm baffle plates, forms gas passage, connects by importing and exporting flange 8 between first, second grade jacketed type furnace gas thermostatted.Second stage jacketed type furnace gas thermostatted is identical with the structure of first step jacketed type furnace gas thermostatted, be not repeated in this description.
Second stage jacketed type furnace gas thermostatted is identical with the principle of work process of first step jacketed type furnace gas thermostatted; During work, sulfur dioxide flue gas from the sulfur furnace afterbody, through Waste-heat boiler, UTILIZATION OF VESIDUAL HEAT IN reduces after the flue-gas temperature, enters in the first step jacketed type furnace gas thermostatted 6 from the import 601 of first step jacketed type furnace gas thermostatted, under pressure, flue gas is by tubulation 604, from the furnace gas export 608 of first step jacketed type furnace gas thermostatted out, enters the import of second stage jacketed type furnace gas thermostatted.
The temperature controlled processes of flue gas in first step jacketed type furnace gas thermostatted is by at temperature control media such as chuck import 602 interior logical water of condensation, hot water, steam, by heat exchange, heat is delivered to be realized on the tubulation of thermostatted inside, temperature control medium after the heat exchange flows out from Jacket outlet 607, under action of gravity, contrary flue gas direction is back in the sulfur furnace from the import 601 of secondary jacketed type furnace gas thermostatted Molten sulphur in the flue gas along tubulation 604 simultaneously.
Embodiment of the method 1
Will be from the sulfur dioxide flue gas of sulfur furnace afterbody, through Waste-heat boiler, UTILIZATION OF VESIDUAL HEAT IN, reduce after the flue-gas temperature, the import 601 of input first step jacketed type furnace gas thermostatted, the flue-gas temperature that enters is at 400 ℃～450 ℃, at the water of condensation of first step chuck furnace gas thermostatted chuck import 602, second stage jacketed type furnace gas thermostatted chuck import 702 interior simultaneously logical temperature≤30 ℃; Flue gas under pressure, during successively by tubulation, reduce rapidly by the heat exchange flue-gas temperature, the temperature of the furnace gas export 708 output flue gases of second stage jacketed type furnace gas thermostatted remains on 120 ℃～140 ℃, and recirculated water is discharged from the first shell type furnace gas thermostatted Jacket outlet 607 and second stage jacketed type furnace gas thermostatted Jacket outlet 707 respectively; Under action of gravity, flow out and be back in the sulfur furnace by the import 601 against the flue gas direction from first step jacketed type furnace gas thermostatted along tubulation 604 and 704 for Molten sulphur in the flue gas simultaneously.Realize the recycle of raw material sulphur, reduce simultaneously the content of impurity in the flue gas, improved flue gas purity.
Embodiment of the method 2
Sulfur dioxide flue gas from the sulfur furnace afterbody, through Waste-heat boiler, UTILIZATION OF VESIDUAL HEAT IN, reduce after the flue-gas temperature, enter from the import 601 of first step jacketed type furnace gas thermostatted, when the flue-gas temperature that enters during at 300 ℃～380 ℃, can be at the water of condensation of first step jacketed type furnace gas thermostatted chuck import 602 interior logical temperature≤30 ℃, be 30 ℃～100 ℃ hot water in second stage jacketed type furnace gas thermostatted chuck import 702 interior logical temperature, when flue gas under pressure, successively by tubulation 604 and 704 o'clock, reduce rapidly by the heat exchange flue-gas temperature, the temperature of second stage jacketed type furnace gas thermostatted output flue gas remains on 120 ℃～140 ℃, recirculated water is respectively from first, second stage jacketed type furnace gas thermostatted Jacket outlet 607 and 707 is discharged, under action of gravity, contrary flue gas direction is back in the sulfur furnace Molten sulphur in the flue gas along tubulation 604 and 704 simultaneously.
Embodiment of the method 3
The flue-gas temperature that enters is in the time of 200 ℃～290 ℃, be 30 ℃～100 ℃ hot water in the interior simultaneously logical temperature of first, second grade jacketed type furnace gas thermostatted chuck import 602 and 702, when flue gas under pressure, during successively by tubulation 4, reduce rapidly by the heat exchange flue-gas temperature, the temperature of second stage jacketed type furnace gas thermostatted output flue gas remains on 120 ℃～140 ℃, and all the other working process are equal to embodiment 1.
Embodiment of the method 4
The flue-gas temperature that enters is at 100～190 ℃, can be 120～240 ℃ steam in first, second grade jacketed type furnace gas thermostatted chuck import 602 and 702 interior simultaneously logical temperature, make the temperature of second stage jacketed type furnace gas thermostatted output flue gas remain on 120 ℃～140 ℃, all the other working process are equal to embodiment 1.
Claims (2)
1. sulphur dioxide production system that controls furnace gas temperature, comprise sulfur furnace, Waste-heat boiler, condensation cleaning system, it is characterized in that: add sulfurous gas furnace gas temperature control device between Waste-heat boiler and the condensation cleaning system, this device is secondary jacketed type furnace gas thermostatted; The entrance of first step jacketed type furnace gas thermostatted is connected with Waste-heat boiler, and the entrance of first step jacketed type furnace gas thermostatted also joins with sulfur furnace; Connect by importing and exporting flange between first, second grade jacketed type furnace gas thermostatted, jacketed type furnace gas thermostatted outlet in the second stage is joined with the condensation cleaning system.
2. the control method of a sulfurous gas furnace gas temperature, the method adopt sulphur dioxide production claimed in claim 1 system; Will be from the sulfur dioxide flue gas of sulfur furnace afterbody, through Waste-heat boiler, UTILIZATION OF VESIDUAL HEAT IN, reduce after the flue-gas temperature, the import of input first step jacketed type furnace gas thermostatted, temperature according to sulfur dioxide flue gas, by first, the chuck import of second stage jacketed type furnace gas thermostatted passes into steam or water of condensation or hot water in chuck, make the furnace gas temperature of second stage jacketed type furnace gas thermostatted outlet remain on 120 ℃～140 ℃, the sulphur steam is first, second stage jacketed type furnace gas thermostatted becomes liquid sulfur, under action of gravity, flow out and be back in the sulfur furnace from the import of first step jacketed type furnace gas thermostatted.
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| CN2011103100525A CN102328916B (en) | 2011-10-13 | 2011-10-13 | Sulfur dioxide production system controlling furnace gas temperature and furnace gas temperature control method |
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| CN2011103100525A CN102328916B (en) | 2011-10-13 | 2011-10-13 | Sulfur dioxide production system controlling furnace gas temperature and furnace gas temperature control method |
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| CN107827086A (en) * | 2017-11-27 | 2018-03-23 | 西北矿冶研究院 | Production device and method of liquid sulfur dioxide |
| CN113697776A (en) * | 2021-08-27 | 2021-11-26 | 威顿(中国)化工有限责任公司 | Production method of high-concentration sulfur dioxide gas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071181U (en) * | 1989-05-26 | 1991-02-13 | 蔡崇吉 | Refining sulphur apparatus from liquified so2 by-product by burning purified oxygen |
| US20090226362A1 (en) * | 2005-06-02 | 2009-09-10 | Mecs, Inc. | Process and Apparatus for the Combustion of a Sulfur-Containing Liquid |
| CN201680352U (en) * | 2010-04-09 | 2010-12-22 | 广西大学 | Device for recovering waste heat generated during preparation of SO2 by burning sulfur |
| CN202265409U (en) * | 2011-10-13 | 2012-06-06 | 金川集团有限公司 | Sulfur dioxide production system capable of controlling temperature of furnace gas |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020570A (en) * | 2006-03-22 | 2007-08-22 | 蒋胜 | Production process of eliminating simple substance sulphur from SO2 gas |
| CN101927982B (en) * | 2010-08-27 | 2011-11-16 | 西南石油大学 | Isothermal direct oxidization recovery technology of sulfur |
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- 2011-10-13 CN CN2011103100525A patent/CN102328916B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071181U (en) * | 1989-05-26 | 1991-02-13 | 蔡崇吉 | Refining sulphur apparatus from liquified so2 by-product by burning purified oxygen |
| US20090226362A1 (en) * | 2005-06-02 | 2009-09-10 | Mecs, Inc. | Process and Apparatus for the Combustion of a Sulfur-Containing Liquid |
| CN201680352U (en) * | 2010-04-09 | 2010-12-22 | 广西大学 | Device for recovering waste heat generated during preparation of SO2 by burning sulfur |
| CN202265409U (en) * | 2011-10-13 | 2012-06-06 | 金川集团有限公司 | Sulfur dioxide production system capable of controlling temperature of furnace gas |
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| CN102328916A (en) | 2012-01-25 |
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Effective date of registration: 20240229 Address after: 737100 No.1 Lanzhou Road, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Salt Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: Jinchuan Group Co.,Ltd. Country or region before: China |