CN204345623U - Biomass recirculating fluidized bed boiler heating system - Google Patents
Biomass recirculating fluidized bed boiler heating system Download PDFInfo
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- CN204345623U CN204345623U CN201420740358.3U CN201420740358U CN204345623U CN 204345623 U CN204345623 U CN 204345623U CN 201420740358 U CN201420740358 U CN 201420740358U CN 204345623 U CN204345623 U CN 204345623U
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- boiler
- heating system
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- fluidized bed
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Abstract
The utility model discloses a kind of biomass recirculating fluidized bed boiler heating system, comprise CFBB, bucket elevator, storage bin, distributor, belt conveyor, conveying worm, stokehold feed bin, the air preheater of CFBB connects ceramic multi-tube cyclone dust collectors and sack cleaner.This heating system based on CFBB, boiler thermal output more than 92%, SO
2and NO
xdischarge reaches the requirement of boiler Air Pollutant Emission through sack cleaner dedusting.
Description
Technical field
The utility model belongs to boiler technology field, specifically the CFBB heating system of the raw matter fuel of combustion.
Background technology
Present stage and to future, atmosphere pollution will exist always, and the moment threatens the existence of the mankind.Pollute source mainly excess load to burn traditional fossil energy, such as coal.A large amount of nitrogen oxide that its burning produces and sulfide and fine particle are discharged in air, form haze.Therefore, change that to use reproducible cleaning new energy be inevitable choice into.
Biomass boiler biological substance for combustion shaped fuel, not only achieves carbon zero-emission, and the harmful substance of discharge is very low, SO
2discharge capacity is few, but due to the nitrogen of biomass molding fuel and ash content still higher, cause NO in post combustion emission flue gas
xdischarge and soot emissions difficulty reach the more next high environmental requirement of requirement.Therefore, the quality of low nitrogen burning, dust removing effects is related to applying of biomass boiler.
Utility model content
The utility model, in order to solve prior art Problems existing, provides the biomass fluidization bed boiler burning heating system of a kind of high efficiency, low emission.
In order to realize above object, the technical scheme that the utility model is taked is: a kind of biomass recirculating fluidized bed boiler heating system, comprise CFBB, bucket elevator, storage bin, distributor, belt conveyor, conveying worm, stokehold feed bin, described CFBB, boiler furnace outlet connects scroll casing type separator, the bottom of scroll casing type separator arranges material returning device, material returning device outlet connects Boiler Furnace burner hearth feeding mouth, boiler furnace surrounding arranges fin panel casing, and water-cooling wall connects lower header; The exhanst gas outlet of described scroll casing type separator connects economizer and air preheater; Described air preheater connects ceramic multi-tube cyclone dust collectors and sack cleaner.
Compared with prior art, the utility model due to use CFBB be main body, boiler thermal output more than 92%, SO
2and NO
xdischarge reaches the requirement of boiler Air Pollutant Emission through sack cleaner dedusting.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of biomass recirculating fluidized bed boiler heating system.
Detailed description of the invention
As shown in Figure 1, biomass recirculating fluidized bed boiler heating system, comprises bucket elevator 1, storage bin 2, distributor 3, belt conveyor 4, conveying worm 10, stokehold feed bin 5, CFBB 6, cyclone dust collectors 7, sack cleaner 8 and air-introduced machine 9 and forms.
The main body of heating system is biomass recirculating fluidized bed boiler, and it is according to the characteristic specialized designs such as high-volatile (accounting for 70%), low ash smelting point (less than 850 DEG C), easily coking of biomass fuel.Biomass recirculating fluidized bed boiler mainly comprises boiler furnace 61, fin panel casing 62, drum 63, scroll casing type separator 64, economizer 65, air preheater 66.Scroll casing type separator 64 entrance is communicated with boiler furnace 61 and exports, and scroll casing type separator 64 exports and connects back-end surfaces, is namely provided with economizer 65 and air preheater 66.The outlet flue of air preheater 66 connects cyclone dust collectors 7 and sack cleaner 8 successively.Air compartment 67 is set bottom boiler furnace 61, to provide burning required air to boiler.The bottom of scroll casing type separator 64 arranges U-shaped material returning device 68, and material returning device 68 exports and connects Boiler Furnace burner hearth 61 feeding mouth.
The course of work of biomass recirculating fluidized bed boiler heating system is: after refined biometric matter fuel discharge, by bucket elevator 1, biomass fuel is promoted to distributor 3, distribute to boiler by distributor 3 according to production consumption, surplus then loads in storage bin 2 and stores for future use.In boiler for producing process, if service discharge is inadequate, then storage bin 2 blowing, is delivered to bucket elevator 1 by conveying worm 10, then through distributor 3 blanking to belt conveyor 4, enters stokehold feed bin 5, sends into boiler biomass CFBB.Biomass fuel, in boiler furnace 61 combustion, passes boiler furnace with moderate fluidizing velocity and enters scroll casing type separator 64 through furnace outlet.The fine solid particles of failing to burn completely is carried discharge burner hearth by flue gas, is separated through scroll casing type separator 64, then returns the burning of boiler furnace 61 Inner eycle again through U-shaped material returning device 68; Cleaner flue gas is left by the upper outlet of scroll casing type separator 64, enters convection pass, through economizer 65 and air preheater 66, delivers to chimney discharge by air-introduced machine 9.The water of boiler is pressurizeed by feed pump, drum 63 is sent into through economizer 65, then water-cooling wall lower header is flow to through fin panel casing 62 and down-comer, because fin panel casing is arranged in burner hearth surrounding, such water constantly absorbs the heat that fuel combustion produces, and becomes steam water interface and to rising to upper collecting chamber, enters drum by tedge, be separated through water separator, the high-quality industrial steam forming certain pressure delivers to user.
High-efficiency ceramic multi-tube dust cleaner selected by cyclone dust collectors, its cleaner be made up of the ceramic cyclone dustproof device unit (also known as ceramic cyclone body) of several parallel connections, adopt ceramic rotary wind pipe component, it is more wear-resisting than cast iron pipe, surface is more smooth, acid-fast alkali-proof, is applicable to the non-dried dust of cohering type trapping biomass recirculating fluidized bed boiler.
Claims (1)
1. a biomass recirculating fluidized bed boiler heating system, comprises CFBB, bucket elevator, storage bin, distributor, belt conveyor, conveying worm, stokehold feed bin,
It is characterized in that: described CFBB, boiler furnace outlet connects scroll casing type separator, and the bottom of scroll casing type separator arranges material returning device, and material returning device outlet connects Boiler Furnace burner hearth feeding mouth, boiler furnace surrounding arranges fin panel casing, and water-cooling wall connects lower header;
The exhanst gas outlet of described scroll casing type separator connects economizer and air preheater;
Described air preheater connects ceramic multi-tube cyclone dust collectors and sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740358.3U CN204345623U (en) | 2014-12-01 | 2014-12-01 | Biomass recirculating fluidized bed boiler heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740358.3U CN204345623U (en) | 2014-12-01 | 2014-12-01 | Biomass recirculating fluidized bed boiler heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204345623U true CN204345623U (en) | 2015-05-20 |
Family
ID=53228888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420740358.3U Active CN204345623U (en) | 2014-12-01 | 2014-12-01 | Biomass recirculating fluidized bed boiler heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204345623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964448A (en) * | 2015-07-03 | 2015-10-07 | 高建伟 | Biomass organic heat carrier heating furnace system |
| CN106440703A (en) * | 2016-10-21 | 2017-02-22 | 浙江大学 | Device and method for drying waste wood through flue gas waste heat of circulating fluidized bed boiler |
-
2014
- 2014-12-01 CN CN201420740358.3U patent/CN204345623U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964448A (en) * | 2015-07-03 | 2015-10-07 | 高建伟 | Biomass organic heat carrier heating furnace system |
| CN106440703A (en) * | 2016-10-21 | 2017-02-22 | 浙江大学 | Device and method for drying waste wood through flue gas waste heat of circulating fluidized bed boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.42 Dongzhong Road, East District, Guangzhou Economic and Technological Development Zone, Guangzhou, Guangdong 510530 Patentee after: GUANGZHOU DEVOTION THERMAL TECHNOLOGY Co.,Ltd. Patentee after: SUZHOU DISEN ENERGY TECHNOLOGY CO.,LTD. Patentee after: MEIZHOU DISEN BIOMASS ENERGY HEAT SUPPLY CO.,LTD. Address before: No.42 Dongzhong Road, East District, Guangzhou Economic and Technological Development Zone, Guangzhou, Guangdong 510530 Patentee before: GUANGZHOU DEVOTION THERMAL TECHNOLOGY Co.,Ltd. Patentee before: SUZHOU DISEN BIOLOGICAL ENERGY Co.,Ltd. Patentee before: MEIZHOU DISEN BIOMASS ENERGY HEAT SUPPLY CO.,LTD. |