CN201327041Y - Low energy consumption circulating fluidized bed waste incineration boiler - Google Patents
Low energy consumption circulating fluidized bed waste incineration boiler Download PDFInfo
- Publication number
- CN201327041Y CN201327041Y CNU200820228083XU CN200820228083U CN201327041Y CN 201327041 Y CN201327041 Y CN 201327041Y CN U200820228083X U CNU200820228083X U CN U200820228083XU CN 200820228083 U CN200820228083 U CN 200820228083U CN 201327041 Y CN201327041 Y CN 201327041Y
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- low energy
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Abstract
The utility model relates to a waste processing device, in particular to a low energy consumption circulating fluidized bed waste incineration boiler, which comprises a hearth, a fluidized bed combustion chamber, a separator, a return system, and a shaft flue; the upper part of the hearth is connected with the separator; the lower part of the separator is connected with the combustion chamber through the return system; the upper part of the separator is communicated with the shaft flue; a generating tube nest, an overheater, a coal saver, and a high-temperature air pre-heater are arranged in the shaft flue in sequence; the separator is an adiabatic cyclone separator; the central cylinder of the outlet of the separator is offset; the lower part of the separator is provided with a balancing return valve; the high-temperature air pre-heater employs a four-return or five-return structure; the hot air temperature achieves 230 to 300 DEG C; when the consumption of combustion-supporting coal is very small, maintaining the temperature of the hearth between 820 and 890 DEG C is beneficial to the firing and stable burning of the waste. Compared with the primary fans of the waste incineration boilers of other forms, the power consumption is reduced by 20-30 percent. The generating tube nest reduces the temperature of the smoke at the inlet of the overheater and avoids the high-temperature corrosion of the overheater; mixed burning of waste and coal greatly reduces the discharge of dioxin.
Description
Technical field
The utility model relates to a kind of garbage burning boiler, specifically a kind of low energy consumption refuse incinerator of circulating fluid bed.
Background technology
National urban house refuse annual emissions is above 1.5 hundred million tons at present, be to produce 410,000 tons in rubbish alive every day approximately, and speed increase with annual about 6%, the waste incineration and generating electricity technology since have innoxious thoroughly, subtract that capacity is big, the sufficient advantage of the utilization of resources, become the most promising mode of present municipal refuse comprehensive utilization.
The garbage harmless burning disposal of domestic each big and medium-sized cities also is in the starting stage at present, and capital equipment relies on the grate-type boiler of import, invests huge, and because rubbish composition complexity, calorific value is low, and the grate-type boiler needs a large amount of throwing oil combustion-supporting, operating cost is high, has inadaptability.Domestic have a grate-type incinerator patent (CN2139658 and CN2154058), and this incinerator is had relatively high expectations to the calorific value of rubbish, must carry out sorting to rubbish during burning, and its content of organics is reached more than 85%.And the CFBB of part coal combustion-supporting is added in domestic dependence, and is same because the calorific value of rubbish is very low, has the fan energy consumption height, the big deficiency of combustion-supporting coal consumption.
Summary of the invention
The purpose of this utility model provides a kind of low energy consumption refuse incinerator of circulating fluid bed, and it can make rubbish completing combustion, and the consumption of combustion-supporting coal only accounts for into 10～20% of stove total amount of fuel, and the primary air fan power consumption reduces 20-30%.
The utility model comprises burner hearth, fluidized bed combustion chamber in the burner hearth, separator, revert system, vertical well gas flue, the combustion chamber high temperature pars infrasegmentalis is provided with combustion-supporting coal import, combustion chamber high temperature section top is provided with garbage inlet, air distribution plate is arranged at the bottom, combustion chamber, blast cap is arranged on the air distribution plate, be connected with an air compartment and scum pipe under the air distribution plate, the outlet of fluid bed top is joined with separator, separator bottom standpipe and revert system join, revert system communicates with the combustion chamber, separator central upper portion outlet tube communicates with vertical well gas flue, in vertical well gas flue, be furnished with superheater successively, economizer, air preheater, separator is adiabatic cyclone separator, the central outlet tube biasing on its top, the self-balancing material returning valve is installed on the standpipe of bottom, and air preheater is to make air themperature reach 230～300 ℃ four backhaul high-temperature air preheaters or five backhaul high-temperature air preheaters.
Above-mentioned vertical well gas flue adopts the full overhung construction of the cold bag wall of vapour.
At the vertical well gas flue internal upper part steam-generating bank is installed also.
Above-mentioned air distribution plate is a water-cooled distributor, and blast cap is the bell-jar blast cap, and air compartment is a water cooled wind chamber, and scum pipe is the water-cooled scum pipe, be arranged in stove after.The fluid bed burner hearth is the fin panel casing burner hearth, all is welded with intensive pin in the combustion chamber on the high temperature section water-cooling wall and applies corrosive-proof plastic material.
Above-mentioned garbage inlet is arranged in the combustion chamber draft point, also is furnished with the secondary wind inlet simultaneously, has prevented that effectively feed is not smooth.
The utility model is owing to adopt four backhaul high-temperature air preheaters, utilize the tail flue gas waste heat that hot blast temperature is brought up to 230 ℃～300 ℃, send burner hearth back to and participate in burning, under the very little situation of combustion-supporting coal consumption (only account for into stove total amount of fuel 10%～20%), fire box temperature is remained between 820-890 ℃, help more that rubbish catches fire and smooth combustion.Rubbish and a spot of coal multifuel combustion greatly reduce the discharge capacity of pernicious gas bioxin, can satisfy the strictest environmental requirement fully.Adopted the thermal insulation cyclone separator and the low energy consumption self-balancing material returning valve of central tube bias structure, ensured and mixed under the very little situation of burning coal amount that recycle stock concentration can satisfy the requirement that CFBB conducts heat in the burner hearth.Fluidized bed combustion is complete, and heat-transfer effect is good, reduces 20-30% than other forms of garbage burning boiler primary air fan power consumption.Adopt the full overhung construction of the cold bag wall of afterbody vapour, flue gas by steam-generating bank after, enter high temperature superheater again, reduced high temperature superheater import cigarette temperature, thereby the reduction tube wall temperature, the chlorine-containing gas that has produced when having avoided incineration firing is to the superheater high temperature corrosion.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model,
Among the figure, 1. air compartment, 2. scum pipe, 3. fluidized bed combustion chamber, 4. combustion-supporting coal import, 5. rubbish import, 6. burner hearth, 7. steam-generating bank, 8. separator, 9. vertical well gas flue, 10. revert system, 11. low energy consumption self-balancing material returning valves, 12. 4 backhaul high-temperature air preheaters.
The specific embodiment
In the drawings, the utility model comprises burner hearth 6, fluidized bed combustion chamber 3 in the burner hearth, adiabatic cyclone separator 8, revert system 10, vertical well gas flue 9,3 high temperature section bottoms, combustion chamber are provided with combustion-supporting coal import 4, top is provided with rubbish import 5, air distribution plate is arranged at the bottom, combustion chamber, blast cap is arranged on the air distribution plate, connect an air compartment 1 and scum pipe 2 under the air distribution plate, the outlet of burner hearth 6 tops is joined with separator 8, separator 8 bottom standpipes and revert system 10 join, revert system 10 communicates with combustion chamber 3, in vertical well gas flue 9, high temperature superheater is installed, low temperature superheater and economizer, separator 8 central upper portion outlet tube communicates with vertical well gas flue, separator 8 is adiabatic cyclone separator, the central outlet tube biasing on top is equipped with low energy consumption self-balancing material returning valve 11 on the separator 8 bottom standpipes, is equipped with in the vertical well gas flue 9 to make air themperature reach 230～300 ℃ four backhaul high-temperature air preheaters 12.
Vertical well gas flue 9 adopts the full overhung construction of the cold bag wall of vapour.At vertical well gas flue 9 internal upper parts steam-generating bank 7 is installed also, flue gas by steam-generating bank after, enter superheater again, reduced superheater import cigarette temperature, thereby reduced tube wall temperature, avoided the superheater high temperature corrosion.
Air distribution plate is a water-cooled distributor, and blast cap is the bell-jar blast cap, and air compartment 1 is a water cooled wind chamber, and scum pipe 2 is a water-cooled heavy caliber scum pipe, be arranged in stove after.Large-diameter water-cooled scum pipe has ensured boiler when combustion refuse behind horizontally disposed water cooled wind chamber 1, lower resistance bell-jar blast cap and the stove, and fluidisation is good, and deslagging is smooth and easy.Fluid bed burner hearth 6 is the fin panel casing burner hearth, all is welded with intensive pin and applies corrosive-proof plastic material on the high temperature section water-cooling wall in the combustion chamber 3, improves service life.
Rubbish import 5 is arranged in burner hearth 6 negative pressure point, also is furnished with the secondary wind inlet simultaneously, guarantees that feed is unobstructed.
Claims (6)
1. low energy consumption refuse incinerator of circulating fluid bed, comprise burner hearth, fluidized bed combustion chamber in the burner hearth, separator, revert system, vertical well gas flue, the combustion chamber high temperature pars infrasegmentalis is provided with combustion-supporting coal import, combustion chamber high temperature section top is provided with garbage inlet, air distribution plate is arranged at the bottom, combustion chamber, blast cap is arranged on the air distribution plate, be connected with an air compartment and scum pipe under the air distribution plate, the outlet of fluid bed top is joined with separator, separator bottom standpipe and revert system join, revert system communicates with the combustion chamber, separator central upper portion outlet tube communicates with vertical well gas flue, in vertical well gas flue, be furnished with high temperature superheater successively, low temperature superheater and economizer, air preheater, it is characterized in that separator is adiabatic cyclone separator, the central outlet tube biasing on its top is equipped with the self-balancing material returning valve on the standpipe of bottom, air preheater is to make air themperature reach 230～300 ℃ four backhaul high-temperature air preheaters or five backhaul high-temperature air preheaters.
2. low energy consumption refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that vertical well gas flue adopts the full overhung construction of the cold bag wall of vapour.
3. low energy consumption refuse incinerator of circulating fluid bed as claimed in claim 2 is characterized in that at the vertical well gas flue internal upper part steam-generating bank being installed also.
4. low energy consumption refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that air distribution plate is a water-cooled distributor, and blast cap is the bell-jar blast cap, and air compartment is a water cooled wind chamber, and scum pipe is the water-cooled scum pipe, be arranged in stove after.
5. low energy consumption refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that the fluid bed burner hearth is the fin panel casing burner hearth, all is welded with intensive pin on the combustion chamber high temperature section water-cooling wall and applies corrosive-proof plastic material.
6. low energy consumption refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that the rubbish import is arranged in the combustion chamber draft point, also is furnished with the secondary wind inlet simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820228083XU CN201327041Y (en) | 2008-12-20 | 2008-12-20 | Low energy consumption circulating fluidized bed waste incineration boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820228083XU CN201327041Y (en) | 2008-12-20 | 2008-12-20 | Low energy consumption circulating fluidized bed waste incineration boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327041Y true CN201327041Y (en) | 2009-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820228083XU Expired - Lifetime CN201327041Y (en) | 2008-12-20 | 2008-12-20 | Low energy consumption circulating fluidized bed waste incineration boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201327041Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881456A (en) * | 2010-07-12 | 2010-11-10 | 山西蓝天环保设备有限公司 | Circulating fluid bed domestic garbage burning electricity generation boiler |
| CN102537941A (en) * | 2012-01-18 | 2012-07-04 | 太原锅炉集团有限公司 | Circulating fluidized bed boiler technology for pure-burning low heating value coal gangue |
| CN103047643A (en) * | 2013-01-30 | 2013-04-17 | 哈尔滨红光锅炉总厂有限责任公司 | Energy-saving type circulating fluidized bed boiler for combusting lower-calorific value fuel |
| CN103322557A (en) * | 2013-06-26 | 2013-09-25 | 中煤能源黑龙江煤化工有限公司 | Coal gangue circulating fluidized bed boiler |
| CN104390218A (en) * | 2014-12-12 | 2015-03-04 | 华西能源工业股份有限公司 | Constant pressure wind chamber applied to CFB (circulating fluid bed) waste incineration boiler |
| CN104501177A (en) * | 2014-12-24 | 2015-04-08 | 山西蓝天环保设备有限公司 | Waste incinerating circulating fluidized bed boiler |
| CN111609407A (en) * | 2020-05-28 | 2020-09-01 | 龙净能源发展有限公司 | Method for treating refuse incineration by using circulating fluidized bed boiler |
| CN112197275A (en) * | 2020-09-28 | 2021-01-08 | 华西能源工业股份有限公司 | Waste incineration grate furnace based on circulating fluidized bed furnace body |
| CN117588755A (en) * | 2023-12-27 | 2024-02-23 | 中科合肥煤气化技术有限公司 | Circulating fluidized bed incinerator system and method for recycling low-heating value gasified fly ash |
-
2008
- 2008-12-20 CN CNU200820228083XU patent/CN201327041Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881456A (en) * | 2010-07-12 | 2010-11-10 | 山西蓝天环保设备有限公司 | Circulating fluid bed domestic garbage burning electricity generation boiler |
| CN102537941A (en) * | 2012-01-18 | 2012-07-04 | 太原锅炉集团有限公司 | Circulating fluidized bed boiler technology for pure-burning low heating value coal gangue |
| CN103047643A (en) * | 2013-01-30 | 2013-04-17 | 哈尔滨红光锅炉总厂有限责任公司 | Energy-saving type circulating fluidized bed boiler for combusting lower-calorific value fuel |
| CN103322557A (en) * | 2013-06-26 | 2013-09-25 | 中煤能源黑龙江煤化工有限公司 | Coal gangue circulating fluidized bed boiler |
| CN103322557B (en) * | 2013-06-26 | 2015-10-14 | 中煤能源黑龙江煤化工有限公司 | A kind of gangue CFBB |
| CN104390218A (en) * | 2014-12-12 | 2015-03-04 | 华西能源工业股份有限公司 | Constant pressure wind chamber applied to CFB (circulating fluid bed) waste incineration boiler |
| CN104501177A (en) * | 2014-12-24 | 2015-04-08 | 山西蓝天环保设备有限公司 | Waste incinerating circulating fluidized bed boiler |
| CN111609407A (en) * | 2020-05-28 | 2020-09-01 | 龙净能源发展有限公司 | Method for treating refuse incineration by using circulating fluidized bed boiler |
| CN112197275A (en) * | 2020-09-28 | 2021-01-08 | 华西能源工业股份有限公司 | Waste incineration grate furnace based on circulating fluidized bed furnace body |
| CN117588755A (en) * | 2023-12-27 | 2024-02-23 | 中科合肥煤气化技术有限公司 | Circulating fluidized bed incinerator system and method for recycling low-heating value gasified fly ash |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091014 |
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| CX01 | Expiry of patent term |