CN203474458U - Roasting system capable of recovering waste heat - Google Patents
Roasting system capable of recovering waste heat Download PDFInfo
- Publication number
- CN203474458U CN203474458U CN201320466814.5U CN201320466814U CN203474458U CN 203474458 U CN203474458 U CN 203474458U CN 201320466814 U CN201320466814 U CN 201320466814U CN 203474458 U CN203474458 U CN 203474458U
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- CN
- China
- Prior art keywords
- waste heat
- heat pipe
- heat
- cooling tower
- boiler
- 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.)
- Expired - Fee Related
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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
-
- 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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a roasting system capable of recovering waste heat, belonging to the field of roasting waste heat recovery. The roasting system capable of recovering waste heat comprises a fluidized bed furnace, a waste heat boiler, a cyclone dust collector, an electric dust collector and a cooling tower, wherein the fluidized bed furnace, the waste heat boiler, the cyclone dust collector, the electric dust collector and the cooling tower are sequentially connected, the roasting system is provided with a heat pipe economizer, a furnace gas input end of the heat pipe economizer is connected with an output end of the electric dust collector, and a furnace gas output end of the heat pipe economizer is connected with the cooling tower. By adopting the heat pipe economizer, the temperature of the furnace gas entering the cooling tower is reduced, the cooling processes are reduced, and the increase of pollution discharge to keep the acid temperature of the cooling tower is avoided in relatively hot weather; the water-feed port deoxygenation water is heated to saturation by the furnace gas in the heat pipe economizer and then delivered into a steam drum of the waste heat boiler, thereby improving the utilization rate of heat energy; after the feed water temperature of the boiler is increased, the stress on the steam drum is reduced, thereby being favorable for prolonging the service life of the boiler.
Description
Technical field
The utility model provides a kind of roast system of recyclable waste heat, belongs to roasting waste heat recovery field.
Background technology
Existing pyrite-based sulfuric acid production project roast system is that fluidizing furnace, waste heat boiler, tornado dust collector, electric precipitator, cooling tower connect to form successively.After furnace gas is discharged by fluidizing furnace outlet, enter successively waste heat boiler, tornado dust collector, electric precipitator, cooling tower, water service pipe is connected with waste heat boiler, and electric precipitator exit furnace gas temperature is 350 ℃, and the deoxygenation water temperature that water service pipe enters waste heat boiler drum is 104 ℃.
At present the defect of this technology is: one, the furnace gas temperature that enters cooling tower is higher, has increased cooling process, and weather is when warmmer, to increase blowdown, maintains cooling tower acid temperature, seriously polluted.Its two, waste heat boiler directly adds drum generating steam by the deaerated water of 104 ℃ through service pump, steam production is low, heat utilization rate is low.
Utility model content
According to the deficiencies in the prior art, the utility model object is to provide a kind of roast system of recyclable waste heat, and cooling process is few, less pollution, and steam production is high, and pick up the heat rate is high, and the life-span is long.
The utility model solves the roast system that technical scheme that its technical problem adopts is to provide a kind of recyclable waste heat, comprise fluidizing furnace, waste heat boiler, tornado dust collector, electric precipitator, cooling tower, fluidizing furnace, waste heat boiler, tornado dust collector, electric precipitator, cooling tower connect successively, it is characterized in that, also be provided with heat pipe economizer, the furnace gas input terminus of heat pipe economizer is connected to electric precipitator output terminal, and heat pipe economizer furnace gas output terminal is connected to cooling tower.
Water service pipe connects water inlet place of heat pipe economizer water jacket, and water outlet place of heat pipe economizer water jacket connects water inlet place of waste heat boiler drum.
Described hot economizer comprises heat pipe, the heat unit outer cladding water jacket of heat pipe, and water jacket top arranges gas bag, and lower part of heat pipe is installed heat exchange fin around, and heat pipe connects the exhaust gases passes of electric precipitator.
Compared to the deficiencies in the prior art, the beneficial effect that the utility model has is, heat pipe economizer described in the utility model makes to enter cooling tower furnace gas temperature and is reduced to 270 ℃ by 350 ℃, reduced cooling tower cooling process, and the furnace gas that enters cooling tower significantly reduces, while having avoided weather hotter, to increase blowdown, maintain cooling tower acid temperature; In heat pipe economizer, utilize furnace gas to be heated to admission port deaerated water saturated, then be transported in waste heat boiler drum, make boiler feed temperature bring up to 260 ℃ by 104 ℃, waste heat boiler steam production increases, and has improved the utilization ratio of heat energy; Waste heat boiler feed temperature has reduced drum stress after improving, and is conducive to the prolonged boiler life-span.
Accompanying drawing explanation
Fig. 1 is the roast system architecture schematic diagram of recyclable waste heat.
Fig. 2 is the structural representation of heat pipe economizer.
In figure: 1, fluidizing furnace 2, waste heat boiler 3, tornado dust collector 4, electric precipitator 5, cooling tower 6, heat pipe economizer 7, heat pipe 8, heat pipe economizer water inlet place 9, heat pipe economizer water outlet place 10, gas passage 11, water jacket 12, water service pipe.
Embodiment
Below in conjunction with the utility model, the utility model embodiment is described further:
The roast system of recyclable waste heat described in the utility model, fluidizing furnace 1 furnace gas output terminal connects waste heat boiler 2 furnace gas input terminuss by pipeline, waste heat boiler 2 furnace gas output terminals connect tornado dust collector 3 furnace gas input terminuss by pipeline, tornado dust collector 3 furnace gas output terminals connect electric precipitator 4 furnace gas input terminuss by pipeline, electric precipitator 4 furnace gas output terminals connect heat pipe economizer 6 furnace gas input terminuss by pipeline, heat pipe economizer 6 furnace gas output terminals connect cooling tower 5 furnace gas input terminuss by pipeline, water service pipe 12 is connected to heat pipe economizer water inlet place 8, heat pipe economizer water outlet place 9 is connected to waste heat boiler 2 drums by pipeline.
Principle of work and use procedure:
Waste heat boiler 2 is discharged and entered successively to furnace gas by fluidizing furnace 1, tornado dust collector 3, electric precipitator 4, when furnace gas is discharged by electric precipitator 4, temperature is 350 ℃, furnace gas heats interior heat pipe 7 heating sections of gas passage 10 after entering heat pipe economizer 6 flues, heat by heat pipe 7 heating sections to the deaerated water being uploaded in water jacket 11, deaerated water is sent to boiler-steam dome through being heated to after saturated, the interior working medium condensation of heat pipe 7 is returned to heating section and is continued heat absorption, like this, because water jacket 11 constantly inputted heat by heat pipe 7, by outside water service pipe 12, reach the object that furnace gas temperature is reduced and heated waste heat boiler 2 feedwater, make furnace gas be reduced to 270 ℃ by 350 ℃, waste heat boiler 2 feed temperatures are brought up to 260 ℃ by 104 ℃, significantly reduce furnace gas temperature, reduced cooling tower 5 cooling process and saved heat-energy losses, reached the object of high efficiente callback, and after waste heat boiler 2 feed temperatures improve, reduced drum stress, be conducive to extend 2 life-spans of waste heat boiler.
Claims (3)
1. the roast system of a recyclable waste heat, comprise fluidizing furnace, waste heat boiler, tornado dust collector, electric precipitator, cooling tower, fluidizing furnace, waste heat boiler, tornado dust collector, electric precipitator, cooling tower connect successively, it is characterized in that, also be provided with heat pipe economizer, the furnace gas input terminus of heat pipe economizer is connected to electric precipitator output terminal, and heat pipe economizer furnace gas output terminal is connected to cooling tower.
2. the roast system of recyclable waste heat according to claim 1, is characterized in that, water service pipe connects water inlet place of heat pipe economizer water jacket, and water outlet place of heat pipe economizer water jacket connects water inlet place of waste heat boiler drum.
3. the roast system of recyclable waste heat according to claim 1, is characterized in that, described hot economizer comprises heat pipe, the heat unit outer cladding water jacket of heat pipe, water jacket top arranges gas bag, and lower part of heat pipe is installed heat exchange fin around, and heat pipe connects the exhaust gases passes of electric precipitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320466814.5U CN203474458U (en) | 2013-08-01 | 2013-08-01 | Roasting system capable of recovering waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320466814.5U CN203474458U (en) | 2013-08-01 | 2013-08-01 | Roasting system capable of recovering waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203474458U true CN203474458U (en) | 2014-03-12 |
Family
ID=50222831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320466814.5U Expired - Fee Related CN203474458U (en) | 2013-08-01 | 2013-08-01 | Roasting system capable of recovering waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203474458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228350A (en) * | 2016-03-25 | 2017-10-03 | 天津市正阳彩印有限公司 | A kind of corrugated board production vapour system |
-
2013
- 2013-08-01 CN CN201320466814.5U patent/CN203474458U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228350A (en) * | 2016-03-25 | 2017-10-03 | 天津市正阳彩印有限公司 | A kind of corrugated board production vapour system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140801 |
|
| EXPY | Termination of patent right or utility model |