CN101761913A - Method and device for recovering waste heat of steam condensate of calcination plant - Google Patents
Method and device for recovering waste heat of steam condensate of calcination plant Download PDFInfo
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- CN101761913A CN101761913A CN201010123790A CN201010123790A CN101761913A CN 101761913 A CN101761913 A CN 101761913A CN 201010123790 A CN201010123790 A CN 201010123790A CN 201010123790 A CN201010123790 A CN 201010123790A CN 101761913 A CN101761913 A CN 101761913A
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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
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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
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Abstract
The invention discloses a method for recovering waste heat of steam condensate of a calcination plant, which comprises the following steps: carrying out secondary flashing on the steam condensate from a secondary flashing tank in the sodium bicarbonate calcination process for preparing calcined soda by an ammonia-soda process; recovering and reutilizing the flashed steam; and adopting a device for recovering the steam condensate of the calcination plant. The device comprises a condensate backflow liquid collection tank, one side of the condensate backflow liquid collection tank is connected with the secondary flashing tank, the top end of the condensate backflow liquid collection tank is connected with a secondary flashing second steam pipe, the top end of the secondary flashing tank is connected with a secondary flashing first steam pipe, one side of the secondary flashing tank is connected with a primary flashing steam condensate inlet pipe, the secondary flashing second steam pipe and the secondary flashing first steam pipe are connected in parallel with the a distillation steam main pipe, the bottom end of the condensate backflow liquid collection tank is connected with a condensate pump, and the secondary flashing tank, the condensate backflow liquid collection tank and the condensate pump are simultaneously connected to a condensate pipe of a condensate heat removal electric boiler plant. Thus, the steam is fully utilized, and the energy sources are saved.
Description
Technical field
The present invention relates to soda ash manufacturing technology field, relate in particular to a kind of device that reclaims the method for waste heat of steam condensate of calcination plant and realize this method.
Background technology
Ammonia alkali legal system alkali is the important method that soda ash is produced, and accounts for more than 50% of China's soda ash total output at present.Because production technology itself need expend a large amount of heat energy and produce a lot of heats.Therefore more domestic bigger ammonia alkali factory is all considering how to make full use of the heat that produces in the system alkali production process, and is energy-saving and cost-reducing, reduces production costs, and increases economic efficiency.
In alkali-making process, the low-pressure steam that two sudden strain of a muscle vapour that exhaust steam, the calcining that the thermal source of steaming suction workshop section destilling tower is come by compression is next and pipe network come is formed.Whether abundant the production cost with soda ash that steam uses be closely related.Usually calcining two sudden strain of a muscle steam pressures are 0.55MPa (absolute pressures), and two sudden strain of a muscle back bands still have the part heat not utilize inside pressing condensate liquid, cause energy waste.
Summary of the invention
Technical problem to be solved by this invention provide a kind of to steam make full use of, the method for the recovery waste heat of steam condensate of calcination plant of energy savings.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of method that reclaims waste heat of steam condensate of calcination plant, this method is in the sodium acid carbonate calcination process with ammonia alkali legal system soda ash, carry out shwoot once more for steam condensate (SC)s, and the steam that shwoot goes out is recycled from two sudden strain of a muscle jars.
Behind the shwoot, steam pressure is 0.2MPa to described steam condensate (SC) once more, temperature≤110 ℃.
It is condensate liquid backwater liquid collecting jar and condensate pump that described steam condensate (SC) carries out once more flash device.
Described condensate liquid backwater liquid collecting jar is a shwoot formula condensate liquid backwater liquid collecting jar.
Described recycling is the distillation process that the steam that described shwoot goes out is used for the soda ash production technology.
Another technical problem to be solved by this invention provide a kind of to steam make full use of, the device of the recovery waste heat of steam condensate of calcination plant of energy savings.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of device that reclaims waste heat of steam condensate of calcination plant, described device comprises condensate liquid backwater liquid collecting jar, described condensate liquid backwater liquid collecting jar one side is connected with two and dodges jar, described condensate liquid backwater liquid collecting upper end is connected with two and dodges second steam pipe, described two dodge upper end connects two sudden strains of a muscle, first steam pipe, described two dodge a jar side connects a flash steam condensate liquid feed tube, described two sudden strain of a muscle second steam pipes and described two sudden strains of a muscle, first steam pipe are connected in parallel to distill and use the vapour house steward, described condensate liquid backwater liquid collecting jar bottom connects described condensate pump, and described two dodge jar, condensate liquid backwater liquid collecting jar and condensate pump are connected to the condensate liquid electric boiler workshop condensate liquid pipeline that reduces phlegm and internal heat jointly.
Between described condensate liquid backwater liquid collecting jar and the condensate pump frequency-variable controller is installed also.
Owing to adopted technique scheme, a kind of method that reclaims waste heat of steam condensate of calcination plant, this method is in the sodium acid carbonate calcination process with ammonia alkali legal system soda ash, carries out shwoot once more for the steam condensate (SC)s from two sudden strain of a muscle jars, and the steam that shwoot goes out is recycled; For realizing that this method adopts a kind of device that reclaims waste heat of steam condensate of calcination plant, described device comprises condensate liquid backwater liquid collecting jar, described condensate liquid backwater liquid collecting jar one side is connected with two and dodges jar, described condensate liquid backwater liquid collecting upper end is connected with two and dodges second steam pipe, described two dodge upper end connects two sudden strains of a muscle, first steam pipe, described two dodge a jar side connects a flash steam condensate liquid feed tube, described two sudden strain of a muscle second steam pipes and described two sudden strains of a muscle, first steam pipe are connected in parallel to distill and use the vapour house steward, described condensate liquid backwater liquid collecting jar bottom connects described condensate pump, and described two dodge jar, condensate liquid backwater liquid collecting jar and condensate pump are connected to the condensate liquid electric boiler workshop condensate line that reduces phlegm and internal heat jointly; Like this steam has been carried out making full use of, having saved the energy.
Description of drawings
Accompanying drawing is the structural representation of the embodiment of the invention;
Among the figure: 1-condensate liquid backwater liquid collecting jar; The 2-condensate pump; The 3-frequency-variable controller; The 4-electric boiler workshop condensate line that reduces phlegm and internal heat; 5-two dodges first steam pipe; The vapour house steward is used in the 6-distillation; 7-two dodges second steam pipe; 8-one dodges a jar condensate liquid feed tube; 9-two dodges jar.
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in drawings, a kind of method that reclaims waste heat of steam condensate of calcination plant, described method is in the sodium acid carbonate calcination process with ammonia alkali legal system soda ash, carries out shwoot once more for the steam condensate (SC)s from two sudden strain of a muscle jars, and the steam that shwoot goes out is recycled.
Behind the shwoot, steam pressure is 0.2MPa to described steam condensate (SC) once more, temperature≤110 ℃.
It is condensate liquid backwater liquid collecting jar 1 and condensate pump 2 that described steam condensate (SC) carries out once more flash device.
Described condensate liquid backwater liquid collecting jar 1 is a shwoot formula condensate liquid backwater liquid collecting jar.
Described recycling is the distillation process that the steam that described shwoot goes out is used for the soda ash production technology.
A kind of device that reclaims waste heat of steam condensate of calcination plant comprises condensate liquid backwater liquid collecting jar 1, described condensate liquid backwater liquid collecting jar 1 one sides are connected with two and dodge jar 9, described condensate liquid backwater liquid collecting jar 1 top is connected with two and dodges second steam pipe 7, described two dodge jar 9 tops connects two sudden strains of a muscle, first steam pipe, described two dodge jar 9 one sides connects a flash steam condensate liquid feed tube 8, described two sudden strain of a muscle second steam pipes 7 and described two sudden strains of a muscle, first steam pipe 5 are connected in parallel and distill with vapour house steward 6, described condensate liquid backwater liquid collecting jar 1 bottom connects described condensate pump 2, and described two dodge jar 9, condensate liquid backwater liquid collecting jar 1 and condensate pump 2 are connected to the condensate liquid electric boiler workshop condensate pipe 4 that reduces phlegm and internal heat jointly.
Between described condensate liquid backwater liquid collecting jar 1 and the condensate pump 2 frequency-variable controller 3 is installed also.
During production, enter condensate liquid backwater liquid collecting jar 1 from two steam condensates of dodging jar 9, vapor-liquid separation, condensate liquid is sent into the water-tube boiler workshop by condensate pump 2; Steam enters two and dodges first steam pipe 5, and dodges jar 9 vapor mixing of directly coming out from two and sends into the distillation post.
When the plant failure state overhauls down, stablize for ensureing to produce, the steam condensate system switches to two and dodges second steam pipe 7.
After adopting technical scheme of the present invention, calcining two lightens atmospheric pressure and reduces to 0.20MPa (absolute pressure) by 0.55MPa (absolute pressure), it is 83.2kg/t soda ash that many shwoots go out steam, by 150 yuan of calculating of steam per ton, the deduction operating cost, the soda ash manufacturing cost reduces by 8.32 yuan/t soda ash, as if 1,100,000 tons of soda ash annual productions, and 1.05 ten thousand tons in year saving mark coal.
Claims (7)
1. method that reclaims waste heat of steam condensate of calcination plant, it is characterized in that: described method is in the sodium acid carbonate calcination process with ammonia alkali legal system soda ash, carry out shwoot once more for steam condensate (SC)s, and the steam that shwoot goes out is recycled from two sudden strain of a muscle jars.
2. a kind of method that reclaims waste heat of steam condensate of calcination plant as claimed in claim 1 is characterized in that: behind the shwoot, steam pressure is 0.2MPa to described steam condensate (SC) once more, temperature≤110 ℃.
3. a kind of method that reclaims waste heat of steam condensate of calcination plant as claimed in claim 1 is characterized in that: it is condensate liquid backwater liquid collecting jar and condensate pump that described steam condensate (SC) carries out once more flash device.
4. a kind of method that reclaims waste heat of steam condensate of calcination plant as claimed in claim 3 is characterized in that: described condensate liquid backwater liquid collecting jar is a shwoot formula condensate liquid backwater liquid collecting jar.
5. a kind of method that reclaims waste heat of steam condensate of calcination plant as claimed in claim 1 is characterized in that: described recycling is the distillation process that the steam that described shwoot goes out is used for the soda ash production technology.
6. be used for realizing as the described a kind of device that reclaims waste heat of steam condensate of calcination plant of the arbitrary claim of claim 1 to 5, it is characterized in that: described device comprises condensate liquid backwater liquid collecting jar, described condensate liquid backwater liquid collecting jar one side is connected with two and dodges jar, described condensate liquid backwater liquid collecting upper end is connected with two and dodges second steam pipe, described two dodge upper end connects two sudden strains of a muscle, first steam pipe, described two dodge a jar side connects a flash steam condensate liquid feed tube, described two sudden strain of a muscle second steam pipes and described two sudden strains of a muscle, first steam pipe are connected in parallel to distill and use the vapour house steward, described condensate liquid backwater liquid collecting jar bottom connects described condensate pump, and described two dodge jar, condensate liquid backwater liquid collecting jar and condensate pump are connected to the condensate liquid electric boiler workshop condensate line that reduces phlegm and internal heat jointly.
7. a kind of device that reclaims waste heat of steam condensate of calcination plant as claimed in claim 6 is characterized in that: between described condensate liquid backwater liquid collecting jar and the condensate pump frequency-variable controller is installed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123790A CN101761913A (en) | 2010-02-11 | 2010-02-11 | Method and device for recovering waste heat of steam condensate of calcination plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123790A CN101761913A (en) | 2010-02-11 | 2010-02-11 | Method and device for recovering waste heat of steam condensate of calcination plant |
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| CN101761913A true CN101761913A (en) | 2010-06-30 |
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| CN201010123790A Pending CN101761913A (en) | 2010-02-11 | 2010-02-11 | Method and device for recovering waste heat of steam condensate of calcination plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445066A (en) * | 2011-12-28 | 2012-05-09 | 亿恒节能科技江苏有限公司 | Condensate water waste heat two-effect flash evaporation natural air dehumidification preheating drying oven system |
| CN102616814A (en) * | 2012-03-09 | 2012-08-01 | 山东海天生物化工有限公司 | Equipment for recovering water vapor in heavy ash furnace gas and method for recovering water vapor in heavy ash furnace gas by using equipment |
| CN103015096A (en) * | 2012-12-13 | 2013-04-03 | 绍兴市嘉宝节能新技术有限公司 | Steam fabric setting machine cascade waste heat comprehensive utilization system of printing and dyeing mill |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109341A (en) * | 1985-03-13 | 1986-09-10 | 木村化工机株式会社 | Mechanical compression type evaporation-enrichment facility |
| CN1075694A (en) * | 1992-02-25 | 1993-09-01 | 邓天洲 | Ammonium chloride by combined alkali process evaporation technology and equipment |
| CN2290611Y (en) * | 1996-12-27 | 1998-09-09 | 西安交通大学 | Electrolytic alkali liquid energy saving evaporation appts. by diaphragm process |
| CN101251248A (en) * | 2007-12-28 | 2008-08-27 | 蓝星化工新材料股份有限公司无锡树脂厂 | Method for improving bisphenol A device steam system exchanging/accompanying heat |
-
2010
- 2010-02-11 CN CN201010123790A patent/CN101761913A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109341A (en) * | 1985-03-13 | 1986-09-10 | 木村化工机株式会社 | Mechanical compression type evaporation-enrichment facility |
| CN1075694A (en) * | 1992-02-25 | 1993-09-01 | 邓天洲 | Ammonium chloride by combined alkali process evaporation technology and equipment |
| CN2290611Y (en) * | 1996-12-27 | 1998-09-09 | 西安交通大学 | Electrolytic alkali liquid energy saving evaporation appts. by diaphragm process |
| CN101251248A (en) * | 2007-12-28 | 2008-08-27 | 蓝星化工新材料股份有限公司无锡树脂厂 | Method for improving bisphenol A device steam system exchanging/accompanying heat |
Non-Patent Citations (2)
| Title |
|---|
| 《纯碱工业》 19891231 周汉平,代守是 煅烧中压蒸汽疏水系统改造 38 , 第6期 2 * |
| 《纯碱工业》 20091231 王平山等 浅议纯碱行业蒸汽煅烧炉等冷凝水回收利用 , 第2期 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445066A (en) * | 2011-12-28 | 2012-05-09 | 亿恒节能科技江苏有限公司 | Condensate water waste heat two-effect flash evaporation natural air dehumidification preheating drying oven system |
| CN102445066B (en) * | 2011-12-28 | 2013-08-14 | 亿恒节能科技江苏有限公司 | Natural air dehydrating and preheating drying oven system adopting condensate water waste heat for two-effect flash evaporation |
| CN102616814A (en) * | 2012-03-09 | 2012-08-01 | 山东海天生物化工有限公司 | Equipment for recovering water vapor in heavy ash furnace gas and method for recovering water vapor in heavy ash furnace gas by using equipment |
| CN102616814B (en) * | 2012-03-09 | 2014-02-19 | 山东海天生物化工有限公司 | Equipment for recovering water vapor in heavy ash furnace gas and method for recovering water vapor in heavy ash furnace gas by using equipment |
| CN103015096A (en) * | 2012-12-13 | 2013-04-03 | 绍兴市嘉宝节能新技术有限公司 | Steam fabric setting machine cascade waste heat comprehensive utilization system of printing and dyeing mill |
| CN103015096B (en) * | 2012-12-13 | 2014-07-09 | 绍兴市嘉宝节能新技术有限公司 | Steam fabric setting machine cascade waste heat comprehensive utilization system of printing and dyeing mill |
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Application publication date: 20100630 |