CN105782988A - Household garbage incineration circulating fluidized bed boiler device and incineration method - Google Patents
Household garbage incineration circulating fluidized bed boiler device and incineration method Download PDFInfo
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- CN105782988A CN105782988A CN201410804940.6A CN201410804940A CN105782988A CN 105782988 A CN105782988 A CN 105782988A CN 201410804940 A CN201410804940 A CN 201410804940A CN 105782988 A CN105782988 A CN 105782988A
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- fluidized bed
- high temperature
- waste incineration
- circulating fluidized
- external heat
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Abstract
The invention relates to a household garbage incineration circulating fluidized bed boiler device and an incineration method. A household garbage incineration circulating fluidized bed boiler is a large-size household garbage incineration circulating fluidized bed boiler which firstly adopts the external heat exchanger technology and is applied to actual operation. The household garbage incineration circulating fluidized bed boiler device comprises a bracket (10) which is internally provided with a fluidized bed combustion chamber (1). The side surface of the fluidized bed combustion chamber is connected with an external heat exchanger (2). The side surface of the external heat exchanger is connected with a high-temperature superheater (3). The side surface of the high-temperature superheater is connected with a connecting pipeline (13). The connecting pipeline is connected with a high-temperature cyclone separator (9). The high-temperature cyclone separator is connected with a convection pipe bundle evaporation heat receiver (15) through a pipeline. According to the household garbage incineration circulating fluidized bed boiler device and the incineration method, the incineration method is used for the household garbage incineration circulating fluidized bed boiler device.
Description
Technical field:
The present invention relates to a kind of circulating fluidized bed boiler to consumer waste incineration device and the method burned.
Background technology:
Consumer waste incineration CFBB is to adopt external heat exchanger technology first and put into the large-scale consumer waste incineration CFBB of actual motion.This boiler high temperature superheater is arranged in in the external heat exchanger of fluidized bed integration, can effectively prevent the high temperature corrosion that superheater is produced by HCl gas, utilize fluidising air velocity to regulate the heat transfer coefficient between bed and superheater simultaneously, superheat steam temperature control can be realized preferably.
Waste incineration as realizing Reducing Municipal Solid Waste, innoxious and recycling treatment effective means is increasingly widely applied in China, particularly in big and medium-sized cities and coastal area, owing to garbage loading embeading land used is increasingly difficult to seek, Landfill difficult treatment；Low for compost available fertilizer component content, the quality of compost can be produced impact by the heavy metal contained in rubbish and toxic chemical substance etc., and to problems such as the minimizing degree of solid waste are not high, the application of incineration treatment of garbage technology is rapidly developed.
Raising along with life of urban resident combustion gas rate, grey slag ingredient in house refuse constantly reduces, but owing to being affected by dietary habit, more than kitchen in China's house refuse, content is high, refuse thermal value promotes and unhappy, primary house refuse Lower heat value is mostly in 3300～5500kJ/kg scope, low more than western developed country refuse thermal value 7500～10450kJ/kg, therefore, incineration technology and the equipment of exploitation applicable China low heat value house refuse have very important realistic meaning, and the fluidized combustion technology adopting coal combustion-supporting is an effective way.
Summary of the invention:
It is an object of the invention to provide a kind of circulating fluidized bed boiler to consumer waste incineration device and the method burned.
Above-mentioned purpose is realized by following technical scheme:
A kind of circulating fluidized bed boiler is to consumer waste incineration device, support, vulcanization bed combustor is installed in described support, described vulcanization bed combustor side is connected with external heat exchanger, described external heat exchanger side is connected with high temperature superheater, described high temperature superheater side is connected with connecting line, and described connecting line is connected with high temperature cyclone separator, and described high temperature cyclone separator is connected with convection bank evaporation heating device by pipeline.
Described circulating fluidized bed boiler is to consumer waste incineration device, described internal stent side is trough type, cryogenic overheating pipe is installed in described trough type, described cryogenic overheating pipe is installed below convection bank, described convection bank is installed below air preheater, is connected with ash bucket below described air preheater.
Described circulating fluidized bed boiler is to consumer waste incineration device, and described vulcanization bed combustor side is provided with material returning device, and described material returning device is connected with garbage fuel by connecting line, and described garbage fuel is placed on bracing frame.
Described circulating fluidized bed boiler is to consumer waste incineration device, described vulcanization bed combustor is placed on the left of described support, described high temperature cyclone separator is placed on described support middle part, and described cryogenic overheating pipe, described convection bank, described air preheater are placed on the right side of described support.
Described circulating fluidized bed boiler is to consumer waste incineration device, described vulcanization bed combustor, the parallel placement of described high temperature cyclone separator, described cryogenic overheating pipe, described convection bank, the parallel placement of described air preheater.
A kind of circulating fluidized bed boiler is to consumer waste incineration device and the method burned, the method comprises the steps: it is first for containing brick in house refuse, high-temperature metal heating surface can be produced the characteristics such as strong corrosion by the HCl gas that the noncombustibles such as rubble and metal and burning process produce, waste incineration CFBB is at fluid bed cloth wind system, the aspects such as dreg removing system and boiler heating surface layout all have employed the structural design being different from conventional fire coal circulating fluid bed boiler, the bulk noncombustibles entered in fluid bed can be discharged smoothly, and prevent HCl gas from high-temperature surface is produced corrosion；
Waste incineration CFBB with external heat exchanger structure, combustion system is made up of parts such as fluid bed, suspension section, high temperature cyclone separator, material returning device and external heat exchangers, exhanst gas outlet at high temperature cyclone separator arranges convection bank evaporating heating surface, being sequentially arranged low temperature superheater, economizer and air preheater in back-end ductwork behind, high temperature superheater is arranged in external heat exchanger；
The air distribution plate of fluidized bed combustion chamber adopts inclined distributor, rolled tiltedly by material inlet side to slag-drip opening, the bulk noncombustibles entered in fluid bed can be discharged by the slag-drip opening of super large, external heat exchanger and fluidized bed combustion chamber are designed to integrative-structure, external heat exchanger adopts Air Fluidized, high temperature circulation material to be heat carrier, arrange that superheater within it and HCl are gas-insulated, efficiently solve waste incineration High Temperature Corrosion.
Beneficial effect:
1. the consumer waste incineration CFBB of the present invention is to adopt external heat exchanger technology first and put into the large-scale consumer waste incineration CFBB of actual motion.This boiler high temperature superheater is arranged in in the external heat exchanger of fluidized bed integration, can effectively prevent the high temperature corrosion that superheater is produced by HCl gas, utilize fluidising air velocity to regulate the heat transfer coefficient between bed and superheater simultaneously, superheat steam temperature control can be realized preferably.
Waste incineration of the present invention as realizing Reducing Municipal Solid Waste, innoxious and recycling treatment effective means is increasingly widely applied in China, particularly in big and medium-sized cities and coastal area, owing to garbage loading embeading land used is increasingly difficult to seek, Landfill difficult treatment；Low for compost available fertilizer component content, the quality of compost can be produced impact by the heavy metal contained in rubbish and toxic chemical substance etc., and to problems such as the minimizing degree of solid waste are not high, the application of incineration treatment of garbage technology is rapidly developed.
The present invention adopts circulating fluidized bed boiler to consumer waste incineration device, and incineration technology and the equipment of exploitation applicable China low heat value house refuse have very important realistic meaning, and the fluidized combustion technology adopting coal combustion-supporting is an effective way.
4. high-temperature metal heating surface can be produced the characteristics such as strong corrosion for the HCl gas produced containing the noncombustibleses such as brick, rubble and metal and burning process in house refuse by the present invention, waste incineration CFBB all have employed, in fluid bed cloth wind system, dreg removing system and boiler heating surface layout etc., the structural design being different from conventional fire coal circulating fluid bed boiler, the bulk noncombustibles entered in fluid bed can be discharged smoothly, and prevent HCl gas from high-temperature surface is produced corrosion.
Waste incineration CFBB with external heat exchanger structure of the present invention, combustion system is made up of parts such as fluid bed, suspension section, high temperature cyclone separator, material returning device and external heat exchangers, exhanst gas outlet at high temperature cyclone separator arranges convection bank evaporating heating surface, being sequentially arranged low temperature superheater, economizer and air preheater in back-end ductwork behind, high temperature superheater is arranged in external heat exchanger.
The air distribution plate of fluidized bed combustion chamber of the present invention adopts inclined distributor, rolled tiltedly by material inlet side to slag-drip opening, the bulk noncombustibles entered in fluid bed can be discharged by the slag-drip opening of super large, external heat exchanger and fluidized bed combustion chamber are designed to integrative-structure, external heat exchanger adopts Air Fluidized, high temperature circulation material to be heat carrier, arrange that superheater within it and HCl are gas-insulated, efficiently solve waste incineration High Temperature Corrosion.
The circulating fluidized bed boiler of the present invention is simple to consumer waste incineration apparatus structure system, occupation area of equipment is little, reduced investment, water consumption are few, absorbent utilization rate high, and product state in dry powdered form is easily handled.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of the present invention.
Detailed description of the invention:
Embodiment 1:
A kind of circulating fluidized bed boiler is to consumer waste incineration device, its composition includes: support 10, vulcanization bed combustor 1 is installed in described support, described vulcanization bed combustor side is connected with external heat exchanger 2, described external heat exchanger side is connected with high temperature superheater 3, described high temperature superheater side is connected with connecting line 13, and described connecting line is connected with high temperature cyclone separator 9, and described high temperature cyclone separator is connected with convection bank evaporation heating device 15 by pipeline.
Embodiment 2:
Circulating fluidized bed boiler described in embodiment 1 is to consumer waste incineration device, described internal stent side is trough type, cryogenic overheating pipe 5 is installed in described trough type, described cryogenic overheating pipe is installed below convection bank 4, described convection bank is installed below air preheater 7, is connected with ash bucket 8 below described air preheater.
Embodiment 3:
Circulating fluidized bed boiler described in embodiment 1 is to consumer waste incineration device, and described vulcanization bed combustor side is provided with material returning device 14, and described material returning device is connected with garbage fuel 11 by connecting line, and described garbage fuel is placed on bracing frame 12.
Embodiment 4:
Circulating fluidized bed boiler described in embodiment 1 or 2 is to consumer waste incineration device, described vulcanization bed combustor is placed on the left of described support, described high temperature cyclone separator is placed on described support middle part, and described cryogenic overheating pipe, described convection bank, described air preheater are placed on the right side of described support.
Embodiment 5:
Circulating fluidized bed boiler described in embodiment 1 or 2 is to consumer waste incineration device, described vulcanization bed combustor, the parallel placement of described high temperature cyclone separator, described cryogenic overheating pipe, described convection bank, the parallel placement of described air preheater.
Embodiment 6:
A kind of method that consumer waste incineration device is burned by circulating fluidized bed boiler, first this method is for containing brick in house refuse, high-temperature metal heating surface can be produced the characteristics such as strong corrosion by the HCl gas that the noncombustibles such as rubble and metal and burning process produce, waste incineration CFBB is at fluid bed cloth wind system, the aspects such as dreg removing system and boiler heating surface layout all have employed the structural design being different from conventional fire coal circulating fluid bed boiler, the bulk noncombustibles entered in fluid bed can be discharged smoothly, and prevent HCl gas from high-temperature surface is produced corrosion；
Waste incineration CFBB with external heat exchanger structure, combustion system is made up of parts such as fluid bed, suspension section, high temperature cyclone separator, material returning device and external heat exchangers, exhanst gas outlet at high temperature cyclone separator arranges convection bank evaporating heating surface, being sequentially arranged low temperature superheater, economizer and air preheater in back-end ductwork behind, high temperature superheater is arranged in external heat exchanger；
The air distribution plate of fluidized bed combustion chamber adopts inclined distributor, rolled tiltedly by material inlet side to slag-drip opening, the bulk noncombustibles entered in fluid bed can be discharged by the slag-drip opening of super large, external heat exchanger and fluidized bed combustion chamber are designed to integrative-structure, external heat exchanger adopts Air Fluidized, high temperature circulation material to be heat carrier, arrange that superheater within it and HCl are gas-insulated, efficiently solve waste incineration High Temperature Corrosion.
Claims (6)
1. a circulating fluidized bed boiler is to consumer waste incineration device, its composition includes: support, it is characterized in that: vulcanization bed combustor is installed in described support, described vulcanization bed combustor side is connected with external heat exchanger, described external heat exchanger side is connected with high temperature superheater, described high temperature superheater side is connected with connecting line, and described connecting line is connected with high temperature cyclone separator, and described high temperature cyclone separator is connected with convection bank evaporation heating device by pipeline.
2. circulating fluidized bed boiler according to claim 1 is to consumer waste incineration device, it is characterized in that: described internal stent side is trough type, cryogenic overheating pipe is installed in described trough type, described cryogenic overheating pipe is installed below convection bank, described convection bank is installed below air preheater, is connected with ash bucket below described air preheater.
3. circulating fluidized bed boiler according to claim 1 is to consumer waste incineration device, it is characterized in that: described vulcanization bed combustor side is provided with material returning device, described material returning device is connected with garbage fuel by connecting line, and described garbage fuel is placed on bracing frame.
4. circulating fluidized bed boiler according to claim 1 and 2 is to consumer waste incineration device, it is characterized in that: described vulcanization bed combustor is placed on the left of described support, described high temperature cyclone separator is placed on described support middle part, and described cryogenic overheating pipe, described convection bank, described air preheater are placed on the right side of described support.
5. circulating fluidized bed boiler according to claim 1 and 2 is to consumer waste incineration device, it is characterized in that: described vulcanization bed combustor, the parallel placement of described high temperature cyclone separator, described cryogenic overheating pipe, described convection bank, the parallel placement of described air preheater.
6. the method utilizing circulating fluidized bed boiler described for one of claim 1-5 that consumer waste incineration device is burned, is characterized in that: the method comprises the steps:
First it is high-temperature metal heating surface can be produced the characteristics such as strong corrosion for the HCl gas produced containing the noncombustibleses such as brick, rubble and metal and burning process in house refuse, waste incineration CFBB all have employed, in fluid bed cloth wind system, dreg removing system and boiler heating surface layout etc., the structural design being different from conventional fire coal circulating fluid bed boiler, the bulk noncombustibles entered in fluid bed can be discharged smoothly, and prevent HCl gas from high-temperature surface is produced corrosion；
Waste incineration CFBB with external heat exchanger structure, combustion system is made up of parts such as fluid bed, suspension section, high temperature cyclone separator, material returning device and external heat exchangers, exhanst gas outlet at high temperature cyclone separator arranges convection bank evaporating heating surface, being sequentially arranged low temperature superheater, economizer and air preheater in back-end ductwork behind, high temperature superheater is arranged in external heat exchanger；
The air distribution plate of fluidized bed combustion chamber adopts inclined distributor, rolled tiltedly by material inlet side to slag-drip opening, the bulk noncombustibles entered in fluid bed can be discharged by the slag-drip opening of super large, external heat exchanger and fluidized bed combustion chamber are designed to integrative-structure, external heat exchanger adopts Air Fluidized, high temperature circulation material to be heat carrier, arrange that superheater within it and HCl are gas-insulated, efficiently solve waste incineration High Temperature Corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804940.6A CN105782988A (en) | 2014-12-23 | 2014-12-23 | Household garbage incineration circulating fluidized bed boiler device and incineration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804940.6A CN105782988A (en) | 2014-12-23 | 2014-12-23 | Household garbage incineration circulating fluidized bed boiler device and incineration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105782988A true CN105782988A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410804940.6A Withdrawn CN105782988A (en) | 2014-12-23 | 2014-12-23 | Household garbage incineration circulating fluidized bed boiler device and incineration method |
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| CN (1) | CN105782988A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606609A (en) * | 2017-10-31 | 2018-01-19 | 清华大学 | A kind of CFBB of lower heat of combustion high-ash fuel |
-
2014
- 2014-12-23 CN CN201410804940.6A patent/CN105782988A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606609A (en) * | 2017-10-31 | 2018-01-19 | 清华大学 | A kind of CFBB of lower heat of combustion high-ash fuel |
| CN107606609B (en) * | 2017-10-31 | 2024-03-19 | 清华大学 | Circulating fluidized bed boiler for burning low-calorific-value high-ash-content fuel |
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| C06 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160720 |