CN101073744A - Integrating apparatus fo magnesium oxide with desulfurizing, dust-collecting and energy-saving functions and its production - Google Patents
Integrating apparatus fo magnesium oxide with desulfurizing, dust-collecting and energy-saving functions and its production Download PDFInfo
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- CN101073744A CN101073744A CN 200610127378 CN200610127378A CN101073744A CN 101073744 A CN101073744 A CN 101073744A CN 200610127378 CN200610127378 CN 200610127378 CN 200610127378 A CN200610127378 A CN 200610127378A CN 101073744 A CN101073744 A CN 101073744A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Abstract
The invention is concerned with the afterheat reclamation device when the smoke evacuation of the 170 to 240 centigrade boiler enters the speedy superconducting pipe, it is: the smoke exchanges heat with other medium such as the feedwater of the boiler, the filling water of the boiler, the heating back water of the user, or the heat source water of the heat pump system, which can not only reduce the temperature of the smoke but also increase the temperature of the circle medium; the smoke enters the bag-style dedusting equipment directly after the smoke passes the afterheat reclamation device of the speedy superconducting pipe, the wastage of the bag decreases a lot because the improvement of the dedust; the smoke enters the decarbolizing tower to process desulfurize by magnesia after dedust, the desulfurize substance is magnesite or magnesia powder, the desulfurize byproduct are MgSO3, MgSO4.7H2O or MgSO4.1H2O that is with high economy value.
Description
Technical field
The present invention relates to a kind of boiler smoke comprehensive processing method, particularly the flue gas processing method that combines with the desulfurization environmental protection of residual heat from boiler fume degree of depth utilization.
Background technology
At present, Industrial Boiler is discharged a large amount of 170-240 ℃ flue gas in running, owing to belong to the low-temperature flue gas waste heat, grade is lower, and present recovering means is considerably less, and a large amount of low temperature exhaust heats waste, and have reduced boiler efficiency; Simultaneously, in the dust-removal and desulfurizing process, because flue gas has 170-240 ℃ temperature and enters deduster, make the cloth bag cost of sack cleaner sharply rise, operating cost increases, and the lost of life, causes efficiency of dust collection to descend, the decline of efficiency of dust collection causes desulfurizing tower to stop up again, and the quality of desulfuration byproduct reduces greatly.
Summary of the invention
In order to overcome the higher boiler efficiency of giving of present exhaust gas temperature, the influence that deduster and sulfur removal technology bring, the invention provides one the integrated solution that combines of a kind of flue gas waste heat recovery and desulfurization environmental protection.
Technical scheme of the present invention is as follows:
170-240 ℃ boiler exhaust gas at first enters very fast super heat-conductive pipe waste-heat recovery device, in very fast super heat-conductive pipe waste-heat recovery device, flue gas and other medium heat exchange, medium can be boiler feedwater, boiler replenishing water or hot user's a heating recirculated water, heat source water of heat pump or the like, so both reduce the temperature of flue gas, improved the temperature of circulatory mediator again.
Flue gas directly enters exhaust dust device with bag behind very fast super heat-conductive pipe waste-heat recovery device, because that flue-gas temperature reduces is a lot, the loss of cloth bag is also alleviated a lot, and efficiency of dust collection improves greatly.Flue gas after the dedusting enters desulfurizing tower, carries out the magnesia desulfurization, and desulfurizing agent adopts magnesite or magnesia powder, and desulfuration byproduct is MgSO3, MgSO47H2O or MgSO41H2O, and desulfuration byproduct economic worth height is of many uses.
The effect that the present invention produced is:
1. boiler tail flue gas degree of depth waste heat recovery, make full use of the low-temperature flue gas waste heat, improve boiler feedwater, moisturizing temperature, with the preheating of heating recirculated water or as thermal source of heat pump or the like by reclaiming low temperature exhaust heat, finally reach the raising boiler efficiency, the purpose of fuel saving.
2. after the flue gas waste heat recovery, flue-gas temperature is reduced to below 120 ℃, adopts high-effective dust-removing equipment---sack cleaner, and efficiency of dust collection is greater than 99.9%;
3. flue-gas temperature is low, has reduced the cost and the operating cost of sack cleaner;
4. flue-gas temperature reduces, and more improves desulfuration efficiency, and desulfuration efficiency is greater than 98%;
5. flue dust and sulfur dioxide (SO2) emissions are well below existing country and local relevant criterion;
6. high-effective dust-removing effectively prevents the generation of desulfurizing tower blockage problem;
7. high-effective dust-removing improves the quality of desulfuration byproduct greatly;
8. desulfurizing agent adopts magnesite or magnesia powder, and desulfuration byproduct is MgSO3, MgSO47H2O or MgSO41H2O, and desulfuration byproduct economic worth height is of many uses;
9. this invention has demonstrated fully the theory of saving economy, recycling economy.Has bigger superiority than existing technology.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is that the present invention is used for residual heat from boiler fume recovery and comprehensive management of environmental protection project, is the governance flowchart of boiler smoke among the figure.
Fig. 2 is the flow chart that the present invention is used for waste heat recovery of the boiler smoke degree of depth and desulfurization.
Among the figure: 1. hot user or steam user 2. boilers 3. gas baffles 1 4. gas baffles 2 5. gas baffles 3 6. very fast super heat-conductive pipe waste-heat recoverer 7. hot water users 8. sack cleaners 9. desulfurizing towers 10. gas baffles 4 1. supply water or air feed 2. backwater 3. 170-240 ℃ smoke evacuation 4. flue gas discharge 5. 6. domestic water of cold water
The specific embodiment
In Fig. 1, the flue gas that boiler is discharged at first enters very fast super heat-conductive pipe waste-heat recovery device, flue gas after the cooling enters the sack cleaner dedusting, flue gas after the dedusting enters desulfurizing tower and carries out flue gas desulfurization, loop slurry in the desulfurizing tower enters desulfuration byproduct and prepares equipment, through suppressing oxidation, generate MgSO
3Can be used as the papermaking raw material and use, perhaps pass through forced oxidation, generate MgSO
4XH
2O is used for chemical fertilizer or the like.
Fig. 2 is the specific implementation method figure that the present invention is used for waste heat recovery of the boiler smoke degree of depth and desulfurization.
The specific embodiment
In Fig. 2, boiler (2) thermotropism user or steam user (1) provide hot water or steam, gas baffle 1 (3), gas baffle 2 (4) are closed, gas baffle 3 (5), gas baffle 4 (10) are opened, boiler (2) flue gas enters very fast super heat-conductive pipe waste-heat recovery device (6) and cold water heat exchange, hot water after the heat exchange provides hot water user (7) to use, flue gas after the heat exchange enters sack cleaner (8) and carries out dedusting, flue gas after the dedusting enters magnesia desulfurizing tower (9) and carries out desulfurization, and the flue gas row after the desulfurization is to atmosphere.
Claims (4)
1. a boiler smoke is administered and energy-conservation integral method, it is characterized in that: between boiler back end ductwork and sack cleaner, increase very fast super heat-conductive pipe waste-heat recovery device, boiler flue is connected with the waste-heat recovery device smoke inlet, the waste-heat recovery device exhanst gas outlet is connected with the sack cleaner smoke inlet, and the water side gateway of waste-heat recovery device is connected with heat supply user.
2. a kind of boiler smoke according to claim 1 is administered and energy-conservation integral method, it is characterized in that: the boiler flue collector is provided with by-pass flue, the by-pass flue import is connected with very fast waste-heat recovery device gas approach, and the by-pass flue outlet is connected with very fast waste-heat recovery device exhanst gas outlet.
3. a kind of boiler smoke according to claim 1 is administered and energy-conservation integral method, it is characterized in that: boiler flue collector bypass gateway and by-pass flue are imported and exported a gas baffle are set respectively.
4. a kind of boiler smoke according to claim 1 is administered and energy-conservation integral method, it is characterized in that: the heat supply backwater end of heat supply user is connected with very fast super heat-conductive pipe waste-heat recovery device water side-entrance one end, and the heat supply water side of heat supply user is connected with very fast super heat-conductive pipe waste-heat recovery device water side outlet one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610127378 CN101073744A (en) | 2006-09-13 | 2006-09-13 | Integrating apparatus fo magnesium oxide with desulfurizing, dust-collecting and energy-saving functions and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610127378 CN101073744A (en) | 2006-09-13 | 2006-09-13 | Integrating apparatus fo magnesium oxide with desulfurizing, dust-collecting and energy-saving functions and its production |
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| Publication Number | Publication Date |
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| CN101073744A true CN101073744A (en) | 2007-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610127378 Pending CN101073744A (en) | 2006-09-13 | 2006-09-13 | Integrating apparatus fo magnesium oxide with desulfurizing, dust-collecting and energy-saving functions and its production |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230635A (en) * | 2011-05-11 | 2011-11-02 | 北京世能中晶能源科技有限公司 | Treatment system and method of smoke |
| WO2012037828A1 (en) * | 2010-09-21 | 2012-03-29 | 上海伏波环保设备有限公司 | Energy-saving dust collector |
| CN102716655A (en) * | 2012-06-20 | 2012-10-10 | 艾淑艳 | Water-saving system and water-saving process thereof used in wet desulfurization process |
| CN103328891A (en) * | 2011-06-23 | 2013-09-25 | 上海伏波环保设备有限公司 | Energy-saving dust collector |
| CN105771578A (en) * | 2016-04-03 | 2016-07-20 | 西南科技大学 | Integration technology for raw material processing and smoke desulfurizing |
| CN107890734A (en) * | 2017-03-17 | 2018-04-10 | 杭州百事盛环保科技有限公司 | A kind of waste gas takes off white purifier and its processing method |
| CN109395552A (en) * | 2018-11-16 | 2019-03-01 | 承德信通首承矿业有限责任公司 | A kind of liquid vapour vortex phase transformation integrated desulfurization and byproduct recovery process |
-
2006
- 2006-09-13 CN CN 200610127378 patent/CN101073744A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2620707A1 (en) * | 2010-09-21 | 2013-07-31 | Shanghai Fubo EP Equipment Co., Ltd. | Energy-saving dust collector |
| WO2012037828A1 (en) * | 2010-09-21 | 2012-03-29 | 上海伏波环保设备有限公司 | Energy-saving dust collector |
| US9416968B2 (en) | 2010-09-21 | 2016-08-16 | Shanghai Fubo Ep Equipment Co., Ltd | Energy-saving electrostatic dust collector |
| EP2620707A4 (en) * | 2010-09-21 | 2015-01-28 | Shanghai Fubo Ep Equipment Co Ltd | Energy-saving dust collector |
| CN102230635B (en) * | 2011-05-11 | 2013-06-05 | 北京世能中晶能源科技有限公司 | Treatment system and method of smoke |
| CN102230635A (en) * | 2011-05-11 | 2011-11-02 | 北京世能中晶能源科技有限公司 | Treatment system and method of smoke |
| CN103328891A (en) * | 2011-06-23 | 2013-09-25 | 上海伏波环保设备有限公司 | Energy-saving dust collector |
| CN102716655A (en) * | 2012-06-20 | 2012-10-10 | 艾淑艳 | Water-saving system and water-saving process thereof used in wet desulfurization process |
| CN105771578A (en) * | 2016-04-03 | 2016-07-20 | 西南科技大学 | Integration technology for raw material processing and smoke desulfurizing |
| CN107890734A (en) * | 2017-03-17 | 2018-04-10 | 杭州百事盛环保科技有限公司 | A kind of waste gas takes off white purifier and its processing method |
| CN107890734B (en) * | 2017-03-17 | 2020-11-13 | 杭州百事盛环保科技有限公司 | Waste gas takes off white purification device |
| CN109395552A (en) * | 2018-11-16 | 2019-03-01 | 承德信通首承矿业有限责任公司 | A kind of liquid vapour vortex phase transformation integrated desulfurization and byproduct recovery process |
| CN109395552B (en) * | 2018-11-16 | 2022-03-15 | 承德信通首承科技有限责任公司 | Liquid-steam vortex phase-change integrated desulfurization and byproduct recovery process |
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