CN111006202A - Cyclone combustion coupling boiler system suitable for burning strong-slagging dirt-staining solid fuel - Google Patents
Cyclone combustion coupling boiler system suitable for burning strong-slagging dirt-staining solid fuel Download PDFInfo
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- CN111006202A CN111006202A CN201811167470.1A CN201811167470A CN111006202A CN 111006202 A CN111006202 A CN 111006202A CN 201811167470 A CN201811167470 A CN 201811167470A CN 111006202 A CN111006202 A CN 111006202A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Combustion Of Fluid Fuel (AREA)
Abstract
The invention relates to a cyclone combustion coupling boiler system suitable for combusting a solid fuel with strong slag bonding and dirt staining properties. The liquid-state slagging cyclone burner and the solid-state slagging boiler are coupled at the smoke side and the working medium side, liquid-state slagging of the liquid-state slagging cyclone burner is realized outside the solid-state slagging boiler, and slagging of the boiler body with strong slagging coal is realized, so that slagging and contamination tendencies in an original hearth are greatly reduced, the purpose of improving the blending combustion proportion of the strong slagging and contamination solid fuel is achieved, different cyclone burners can be selected according to the requirements of different proportions of the combustion strong slagging coal, and the method is particularly suitable for the reconstruction of the existing boiler. The technology has good flexibility and economy, and is particularly suitable for the reconstruction of the existing solid slag discharging boiler.
Description
Technical Field
The invention relates to a boiler system, in particular to a cyclone combustion coupling boiler system suitable for combusting a solid fuel with strong slag bonding and dirt staining properties.
Background
Sinkiang stores a large amount of undeveloped coal energy. The total predicted resource amount reaches 219 trillion tons, which accounts for 40 percent of the total predicted coal resource amount in China, Xinjiang also becomes an important energy and strategic resource base in western development in China, playing a very important role, and Xinjiang coal becomes an important energy continuing area and a strategic performance source storage area in China.
In each large coal field in Xinjiang, the reserve of the quandong coal field (a narrow and long zone from Fukang City to Muramyankazak autonomous county in the eastern part of the Querconarland basin, east-west is about 220 kilometers) is predicted to reach 3900 hundred million tons, and the quandong coal field is the largest whole coal field in China at present. Calculated according to the annual coal consumption in China at present, the eastern Junggar coal field can be used for about one hundred years in China. At present, the east-Junggar coal field becomes the most main energy guarantee base of 'New electric east transport', 'West gas east transport' and 'New coal east transport' in China, and is also the most main coal supply source of the Xinjiang coal electric coal chemical industry.
The coal quality in the area also varies along the coal mine due to historical causes of the eastern coal mine and local natural conditions. Generally, the coal quality in the area has the characteristics of high moisture, medium calorific value, small coal bulk density, easy ignition, easy burnout, strong coking, high alkali metal content, strong slag bonding/contamination and the like. Compared with the domestic known coal for power use, the east Junggar has high content of alkali metals such as Na, K and the like, and generally speaking, Na in Xinjiang high-alkali coal ash2O、CaO、Fe2O3The content is about 4-10%, 20-40% and 7-25% respectively. Therefore, the high-alkali coal cannot be fully burnt for a long period under a high load when the local boiler burns the high-alkali coal due to the strong contamination and slagging characteristics of the coal ash in the boiler in the combustion process of the high-alkali coal, and only 80-90% of the high-alkali coal or the high-alkali coal can be fully burnt under the load below 80% of the BMCR under the working condition of 100% of the BMCR at present. When high-load full-burnt high-alkali coal is used, part of the high-load full-burnt high-alkali coal is often caused by serious contamination, slag bonding and dust deposition of heating surfaces such as a boiler water wall, a separating screen, a superheater, a reheater and the likeThe problems of over-temperature of the wall of the heating surface, tube explosion, flue blockage, coke falling and the like occur frequently, and the reliability of the boiler and the large-scale development and utilization of the east Junggar coal are severely restricted.
Disclosure of Invention
The purpose of the invention is: the cyclone combustion coupling boiler system can burn solid fuel with strong slag bonding and dirt staining properties.
In order to achieve the above object, the technical solution of the present invention is to provide a cyclone combustion coupling boiler system suitable for burning strong slagging and fouling solid fuel, comprising a solid slagging boiler, wherein the solid slagging boiler comprises a furnace, a main burner arranged on the furnace, and an air preheater arranged in a flue at the tail of the furnace, and further comprising a cyclone burner, a hot primary air blower, a hot secondary air blower, a concentrator, and a powder making device, wherein:
the solid fuel with strong slag bonding and dirt adhering properties is subjected to high-temperature combustion in a cyclone burner, the cyclone burner is communicated with a hearth, and high-temperature flue gas generated by combustion of the cyclone burner enters the hearth; the cold primary air and the cold secondary air are heated by the air preheater to form hot primary air and hot secondary air, and the hot primary air and the hot secondary air are respectively sent to the hot primary air fan and the hot secondary air fan; the hot primary air is pressurized by a hot primary air machine to form pressurized hot primary air, the pressurized hot primary air is sent into a powder making device, the pressurized hot primary air is fully mixed with solid fuel in the powder making device to form an air-powder mixture, the air-powder mixture enters a concentrator, the air-powder mixture is separated by the concentrator to form an air-powder mixture containing concentrated phase powder and an air-powder mixture containing dilute phase powder, the air-powder mixture containing the concentrated phase powder enters a cyclone burner as primary air of the cyclone burner, and the air-powder mixture containing the dilute phase powder is sprayed into a hearth from an existing primary air nozzle of a main burner; the hot secondary air is pressurized by the hot secondary fan to form pressurized hot secondary air which is used as secondary air of the cyclone burner to enter the cyclone burner;
the working medium of the heating surface of the cyclone burner is liquid water; the heating surface of the cyclone burner is connected with the heating surface at the upstream of the hearth in a series or parallel mode, and then the heating surfaces all flow into the heating surface of the hearth; the working medium flowing into the heating surface of the hearth is ensured to be in a liquid water state.
Preferably, the slag discharging port of the cyclone burner is communicated with the slag bath through a slag discharging pipe, and liquid slag generated by combustion of the strong-slagging dirt-adhering solid fuel in the cyclone burner is discharged from the slag discharging port and then falls into the slag bath through the slag discharging pipe for cooling.
Preferably, the cyclone burner is arranged below the main burner.
Preferably, the central line elevation of the cyclone burner is located in the range of 1-5 m below the central line elevation of the lowest nozzle of the main burner.
Preferably, the cyclone burner comprises four walls arranged to the furnace.
Preferably, the center line of the cyclone burner is perpendicular to the wall of the hearth where the cyclone burner is located.
Preferably, the cyclone burner is connected with the wall of the hearth on which the cyclone burner is arranged by a high-temperature connecting flue.
Preferably, the length of the high-temperature connecting flue is within the range of 0.5-3 m.
The liquid-state slagging cyclone burner and the solid-state slagging boiler are coupled at the smoke side and the working medium side, liquid-state slagging of the liquid-state slagging cyclone burner is realized outside the solid-state slagging boiler, and slagging of the boiler body with strong slagging coal is realized, so that slagging and contamination tendencies in an original hearth are greatly reduced, the purpose of improving the blending combustion proportion of the strong slagging and contamination solid fuel is achieved, different cyclone burners can be selected according to the requirements of different proportions of the combustion strong slagging coal, and the method is particularly suitable for the reconstruction of the existing boiler. The technology has good flexibility and economy, and is particularly suitable for the reconstruction of the existing solid slag discharging boiler.
The coupling boiler system provided by the invention realizes the purpose of improving the blending combustion ratio of the full-combustion strong slagging fouling solid fuel by coupling the solid slagging boiler and the liquid slagging cyclone burner according to the actual condition that the existing solid slagging boiler is difficult to combust the strong slagging fouling solid fuel with high load and high proportion.
Most of ash slag of the strong-slagging dirt-stained solid fuel is discharged from the cyclone burner in a liquid state under the cyclone combustion condition through the coupling between the cyclone combustion liquid-state slag-off burner and the solid-state slag-off boiler, so that the strong-slagging dirt-stained solid fuel is discharged outside a hearth of the solid-state slag-off boiler. By adopting the technology, on one hand, main low-melting substances in the solid fuel ash with strong slag bonding and dirt adhering properties are discharged from the outside of the solid slag-removing boiler furnace, so that the slag bonding risk of the original boiler furnace is greatly reduced; on the other hand, the cyclone combustion liquid slagging combustor can capture about 80% of ash, can further reduce the amount of fly ash entering a hearth of the solid slagging boiler, and can further reduce the contamination and slagging tendency of the hearth and a high-temperature heating surface. From the view of boiler operation, the adoption of the combustion mode can greatly relieve the contamination and slagging of the hearth and the heating surface of the solid-state slagging boiler, greatly reduce the soot blowing frequency of the boiler and improve the economical efficiency and the safety of the boiler operation.
Through the coupling of the cyclone burner and the solid-state slagging boiler, a part of ash is discharged outside the hearth of the original solid-state slagging boiler in a liquid state, the original boiler is not required to be transformed in a large range, the transformation cost can be greatly reduced, and the method has the characteristics of low transformation cost, good economy and the like.
In addition, under each load of the solid-state slagging boiler, whether the cyclone burner and the solid-state slagging boiler operate in parallel or not can be flexibly selected, and the cyclone burner can also operate under partial load during parallel operation, so that the coupling boiler system has very good flexibility.
The cyclone combustion coupling boiler system fully utilizes the original solid slag discharging boiler air preheater, tail heating surface and other equipment at the smoke-wind coupling side, namely, high-temperature air required by combustion of a cyclone burner is completely from the air preheater of the solid slag discharging boiler, thereby reducing the influence of the coupling system on the smoke-wind side as much as possible; on the working medium coupling side, the heating surface of the cyclone burner and the heating surface at the upstream of the hearth of the solid-state slagging boiler are connected in series or in parallel, and then all flow into the heating surface of the hearth of the solid-state slagging boiler, so that the influence of a coupling system on the working medium side is reduced as much as possible. Through the coupling of the flue gas side and the steam side of the slag tapping cyclone combustion boiler system, the influence on the original boiler system is reduced as far as possible while the combustion of the solid fuel contaminated by strong slag bonding is realized, and the slag tapping cyclone combustion boiler system has better implementability, flexibility and economical efficiency.
Drawings
FIG. 1 is a schematic view of a cyclone combustion coupled boiler system suitable for combusting highly slagging and fouling solid fuel according to the present embodiment.
Wherein:
s1-solid slag discharging boiler hearth; s2-main burner of solid slag discharging boiler; o1-smoke exhaust; AH-air preheater; A1-Cold Primary air; a2-hot primary air; a3-pressurized hot primary air; a4-air-powder mixture containing concentrated phase powder; a5-air-powder mixture containing dilute phase powder; b1-cold secondary air; B2-Hot overfire air; b3-pressurized hot secondary air; a Cy-cyclone burner; cy 1-slag falling pipe; cy 2-slag bath; f1-concentrator; m-powder manufacturing equipment; p1-hot primary air blower; P2-Hot overfire air blower.
Detailed Description
The invention is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
FIG. 1 is a schematic view of a cyclone combustion coupled boiler system suitable for combusting highly slagging and fouling solid fuel according to the present embodiment.
The high-alkali coal is a solid fuel with strong slag bonding and dirt adhering properties. The embodiment provides a coupling boiler system suitable for high-alkali coal combustion, which comprises a cyclone burner Cy, a slag falling pipe Cy1, a slag pool Cy2, a solid-state slag discharging boiler, a primary hot air blower P1, a secondary hot air blower P2, a concentrator F1 and a connecting pipeline.
The solid-state slagging boiler comprises a hearth S1, a main burner S2, heating surfaces of all stages, an air preheater AH and a flue gas purification device. The cyclone burner Cy is arranged below a main burner S1 of the solid slag discharge boiler, and the center line elevation of the cyclone burner Cy is 2m below the center line elevation of the lowest nozzle of the main burner S2. The cyclone burner Cy can be arranged on the four walls of the furnace chamber S1 of the solid slagging boiler according to the field situation. The center line of the cyclone burner Cy is arranged vertically to the wall of the solid slagging boiler furnace S1 where the cyclone burner Cy is located. The cyclone burner Cy is connected with the wall of the solid slag discharge boiler furnace S1 by a high-temperature connecting flue, and the length of the high-temperature connecting flue is 1 m. The solid fuel with strong slag bonding and dirt staining properties is combusted in the cyclone burner Cy, high-temperature flue gas generated by combustion enters the hearth S1 of the solid slagging boiler after passing through the high-temperature connecting flue, is mixed with the flue gas generated by combustion of the solid slagging boiler, and is discharged as exhaust gas after passing through the tail heating surface of the solid slagging boiler for heat exchange. After liquid slag generated by combustion of the strong-slagging dirt-laden solid fuel in the cyclone burner Cy is discharged from a slag discharge port of the cyclone burner Cy, the liquid slag falls into a slag pool Cy2 through a slag falling pipe Cy1 and is cooled. The hot overfire air B2 heated by the air preheater AH of the solid slagging boiler is pressurized by a hot overfire air fan P2 to form pressurized hot overfire air B3, and the pressurized hot overfire air B3 is used as overfire air of a cyclone burner and enters the cyclone burner Cy. The hot primary air A2 heated by the air preheater AH of the solid slagging boiler enters the powder making equipment M after being pressurized by the hot primary air blower P1, and an air-powder mixture formed by fully mixing the hot primary air A2 with the solid fuel meeting the requirement of combustion particle size flows out of the powder making equipment M and enters the concentrator F1. The air-powder mixture is separated in the concentrator F1 to form two parts of air-powder mixture containing concentrated phase powder and dilute phase powder, the air-powder mixture A4 containing concentrated phase powder is used as primary air of a cyclone burner and enters the cyclone burner Cy, and the air-powder mixture A5 containing dilute phase powder is sprayed into a hearth S1 from a primary air nozzle of a main burner S2 of the solid slag discharge boiler.
The working medium of the heating surface of the cyclone burner is liquid water; the heating surface of the cyclone burner is connected with the heating surface at the upstream of the hearth of the solid-state slagging boiler in a parallel connection mode, and then the heating surfaces all flow into the heating surface of the hearth of the solid-state slagging boiler; the working medium flowing into the heating surface of the hearth of the solid slag discharging boiler is ensured to be in a liquid water state.
The coupling boiler system provided by the invention realizes the purpose of improving the blending combustion proportion of the full-combustion strong slagging fouling solid fuel by coupling the solid slagging boiler and the liquid slagging cyclone burner according to the actual condition of the existing strong slagging fouling solid fuel for solid slagging combustion.
Through the coupling between the cyclone combustion liquid-state slagging boiler and the solid-state slagging boiler, most of the ash residues of the strong-slagging dirt-laden solid fuel are discharged out of the cyclone burner in a liquid state under the cyclone combustion condition, so that the slag of part of the strong-slagging dirt-laden solid fuel is discharged outside a hearth of the solid-state slagging boiler, the ash residue entering the hearth is greatly reduced (the dust content of the smoke at the outlet of the liquid-state slagging boiler is greatly reduced), and the serious contamination and slagging of the hearth and a heating surface are avoided. From the view of boiler operation, the characteristic greatly relieves the contamination condition of the heating surface of the solid-state slagging boiler, thereby greatly increasing the interval time of soot blowing of the boiler and improving the economical efficiency and the safety of the boiler operation.
The coupling of cyclone burner and solid-state slagging boiler is through discharging a part of lime-ash out of the boiler in the form of liquid, does not need to carry out transformation on original boiler on a large scale, has lower transformation cost.
In addition, under each load of the solid-state slagging boiler, whether the cyclone burner and the solid-state slagging boiler operate in parallel or not can be flexibly selected, and the cyclone burner can also operate at partial load during parallel operation, so that the coupled boiler system has very good flexibility.
In the coupled boiler system, on the smoke side, the air required by combustion of the cyclone burner is completely from an air preheater of the solid-state slagging boiler, and the measures reduce the influence of the coupled system on the smoke side as much as possible; on the working medium side, the heating surface of the cyclone burner and the heating surface at the upstream of the hearth of the solid-state slagging boiler are connected in series or in parallel, and then all flow into the heating surface of the hearth of the solid-state slagging boiler, so that the influence of a coupling system on the working medium side is reduced as much as possible. In conclusion, the influence of the coupling system on the original solid-state slagging boiler system is greatly reduced through the reasonable design of the flue gas side and the working medium side.
Claims (8)
1. The utility model provides a be fit for burning cyclone combustion coupling boiler system with strong slagging contamination nature solid fuel, includes solid-state row sediment boiler, and solid-state row sediment boiler includes furnace (S1), locates main burner (S2) on furnace (S1) and locates Air Heater (AH) of furnace afterbody flue, its characterized in that still includes cyclone burner (Cy), hot primary air fan (P1), hot overfire fan (P2), concentrator (F1) and powder process equipment (M), wherein: the solid fuel with strong slag bonding and dirt staining properties is subjected to high-temperature combustion in a cyclone burner (Cy), the cyclone burner (Cy) is communicated with a hearth (S1), and high-temperature flue gas generated by combustion of the cyclone burner (Cy) enters the hearth (S1); the cold primary air (A1) and the cold secondary air (B1) are heated by the air preheater (AH) to form hot primary air (A2) and hot secondary air (B2), and the hot primary air (A2) and the hot secondary air (B2) are respectively sent into a hot primary air fan (P1) and a hot secondary air fan (P2); the method comprises the following steps that hot primary air (A2) is pressurized by a hot primary air fan (P1) to form pressurized hot primary air (A3), the pressurized hot primary air (A3) is sent into a powder making device (M), the pressurized hot primary air (A3) and solid fuel are fully mixed in the powder making device (M) to form an air-powder mixture, the air-powder mixture enters a concentrator (F1), the air-powder mixture is separated by the concentrator (F1) to form an air-powder mixture (A4) containing concentrated-phase powder and an air-powder mixture (A5) containing dilute-phase powder, the air-powder mixture (A4) containing the concentrated-phase powder serves as primary air of a cyclone burner to enter the cyclone burner (Cy), and the air-powder mixture (A5) containing the dilute-phase powder is sprayed into a hearth (S1) from an existing primary air nozzle of a main burner (S2); the hot overgrate air (B2) is pressurized by the hot overgrate fan (P2) to form pressurized hot overgrate air (B3) which enters the cyclone burner (Cy) as cyclone burner overgrate air;
working medium of a heating surface of the cyclone burner (Cy) is liquid water; the heating surface of the cyclone burner (Cy) is connected with the heating surface at the upstream of the hearth (S1) in a series or parallel mode, and then the heating surfaces all flow into the heating surface of the hearth (S1); the working medium flowing into the heating surface of the hearth (S1) is ensured to be in a liquid water state.
2. The cyclone combustion coupled boiler system suitable for combusting the solid fuel with strong slag bonding and dirt staining as claimed in claim 1, wherein the slag outlet of the cyclone burner (Cy) is communicated with the slag bath (Cy2) through a slag dropping pipe (Cy1), and the liquid slag generated by the combustion of the solid fuel with strong slag bonding and dirt staining in the cyclone burner (Cy) is discharged from the slag outlet and then falls into the slag bath (Cy2) through the slag dropping pipe (Cy1) for cooling.
3. The cyclone combustion coupled boiler system suitable for combusting a solid fuel with strong slag and dirt pick-up of claim 1, characterized in that the cyclone burner (Cy) is arranged below the main burner (S1).
4. The cyclone combustion coupled boiler system suitable for combusting the solid fuel with strong slag bonding and dirt staining property as claimed in claim 3, wherein the center line elevation of the cyclone burner (Cy) is located in the range of 1-5 m below the center line elevation of the nozzle at the lowest layer of the main burner (S2).
5. The cyclone combustion coupled boiler system suitable for combusting highly slagging fouling solid fuel according to claim 1, wherein the cyclone burner (Cy) comprises four walls arranged on the furnace chamber (S1).
6. The cyclone combustion coupled boiler system suitable for combusting the solid fuel with strong slag bonding and dirt staining as claimed in claim 5, wherein the centerline of the cyclone burner (Cy) is arranged vertically with the wall of the furnace (S1) where the cyclone burner is located.
7. The cyclone combustion coupled boiler system suitable for combusting the solid fuel with strong slag bonding and dirt staining property as claimed in claim 1, wherein the cyclone burner (Cy) is connected with the wall of the hearth (S1) by a high temperature connecting flue.
8. The cyclone combustion coupling boiler system suitable for combusting the solid fuel with strong slag bonding and dirt adhering performance as claimed in claim 7, wherein the length of the high-temperature connecting flue is within the range of 0.5-3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811167470.1A CN111006202A (en) | 2018-10-08 | 2018-10-08 | Cyclone combustion coupling boiler system suitable for burning strong-slagging dirt-staining solid fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811167470.1A CN111006202A (en) | 2018-10-08 | 2018-10-08 | Cyclone combustion coupling boiler system suitable for burning strong-slagging dirt-staining solid fuel |
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| CN111006202A true CN111006202A (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811167470.1A Pending CN111006202A (en) | 2018-10-08 | 2018-10-08 | Cyclone combustion coupling boiler system suitable for burning strong-slagging dirt-staining solid fuel |
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| CN2172404Y (en) * | 1993-11-09 | 1994-07-20 | 哈尔滨工业大学 | Radial thick/thin spiral flow powdered coal burner |
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| CN101189474A (en) * | 2006-04-11 | 2008-05-28 | 巴布考克及威尔考克斯公司 | Cyclone furnace for oxygen fired boilers with flue gas recirculation |
| US20110203498A1 (en) * | 2010-02-23 | 2011-08-25 | Fuel Tech Inc. | Methods, Apparatus and Systems for Improving the Operation of Cyclone Boilers |
| CN102563687A (en) * | 2012-03-07 | 2012-07-11 | 上海锅炉厂有限公司 | Oxygen-enriched combustion system |
| CN103773403A (en) * | 2014-01-15 | 2014-05-07 | 东南大学 | Fluidized bed grading differential temperature pyrolysis device and method for low heating value viscous solid fuel |
| CN105605555A (en) * | 2016-03-01 | 2016-05-25 | 上海锅炉厂有限公司 | Boiler system suitable for combustion of strong-contamination-ability solid fuel and control method thereof |
| CN205261620U (en) * | 2015-12-15 | 2016-05-25 | 南京力合联升电力节能科技有限公司 | A residual heat from flue gas device for burning of power plant boiler cinder |
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2018
- 2018-10-08 CN CN201811167470.1A patent/CN111006202A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172404Y (en) * | 1993-11-09 | 1994-07-20 | 哈尔滨工业大学 | Radial thick/thin spiral flow powdered coal burner |
| WO2002029323A1 (en) * | 2000-10-06 | 2002-04-11 | Crown Coal & Coke Co. | Method for operating a slag tap combustion apparatus |
| CN101189474A (en) * | 2006-04-11 | 2008-05-28 | 巴布考克及威尔考克斯公司 | Cyclone furnace for oxygen fired boilers with flue gas recirculation |
| US20110203498A1 (en) * | 2010-02-23 | 2011-08-25 | Fuel Tech Inc. | Methods, Apparatus and Systems for Improving the Operation of Cyclone Boilers |
| CN102563687A (en) * | 2012-03-07 | 2012-07-11 | 上海锅炉厂有限公司 | Oxygen-enriched combustion system |
| CN103773403A (en) * | 2014-01-15 | 2014-05-07 | 东南大学 | Fluidized bed grading differential temperature pyrolysis device and method for low heating value viscous solid fuel |
| CN205261620U (en) * | 2015-12-15 | 2016-05-25 | 南京力合联升电力节能科技有限公司 | A residual heat from flue gas device for burning of power plant boiler cinder |
| CN105605555A (en) * | 2016-03-01 | 2016-05-25 | 上海锅炉厂有限公司 | Boiler system suitable for combustion of strong-contamination-ability solid fuel and control method thereof |
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Application publication date: 20200414 |