CN103528057B - Coal dust oxygen-enriched burner - Google Patents
Coal dust oxygen-enriched burner Download PDFInfo
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- CN103528057B CN103528057B CN201310542916.5A CN201310542916A CN103528057B CN 103528057 B CN103528057 B CN 103528057B CN 201310542916 A CN201310542916 A CN 201310542916A CN 103528057 B CN103528057 B CN 103528057B
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- burner
- coal dust
- passage
- oxygen
- coal
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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
Abstract
The invention discloses a kind of coal dust oxygen-enriched burner, be provided with cylindrical shape burner, its inner end is stretched into furnace wall and is communicated with burner hearth, surrounding lightweight refracrory module parcel, and burner is fixedly connected with furnace wall by ring flange; Be provided with coal dust wind passage, coal dust wind passage periphery is provided with an oxygen passage, and the center of coal dust wind passage is provided with an oxygen passage, and one time oxygen passage inner end is provided with resistance to nozzles.The outer end of an oxygen passage and secondary oxygen passage is provided with snap joint.The furnace wall that burner is other is provided with thermocouple; Coal dust and coal dust wind passage, an oxygen passage and a secondary oxygen passage are provided with electric control valve, and are provided with the controller with thermocouple and electric control valve control connection.The present invention is applicable to the burning of coal dust, and structure innovation is simple and practical, and efficiency of combustion is high, more economizes on coal, and coal smoke discharge capacity is few, more environmental protection, and can realize automatically controlling.
Description
Technical field
The invention belongs to a kind of coal-burning facility technology, specifically a kind of coal dust oxygen-enriched burner, for large coal-fired boiler and other large-scale coal combustion equipments, is a kind of novel efficient fuel coal equipment of economizing on coal.
Technical background
At present, take coal as the heating power thermal hardware of fuel, application still widely.This kind equipment mostly will arrange coal burner, and for a long time, people have found out a lot of way to economize on coal better and improving burning of coal efficiency, devise diversified coal burner.Used coal burner mostly has improvement to a certain degree in raising burning of coal efficiency of economizing on coal.But still need to propose more reasonable structure, economize on coal and the better coal burner of burning of coal efficiency, with the requirements at the higher level of satisfied production, energy-saving and environmental protection.Common coal burner uses coal dust as fuel, and air, as medium transport coal dust, is First air.It is combustion-supporting that an other road normal air blasts burner hearth from the peripheral annular space of coal dust wind, and be Secondary Air, burner and burner hearth junction arrange precombustion chamber, for ensureing coal dust Thorough combustion.The structure of this coal burner is comparatively reasonable, but still requires further improvement.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, a kind of coal dust oxygen-enriched burner is proposed, this coal burner is provided with oxygen inlet, and point an oxygen and secondary oxygen, eliminate precombustion chamber or combustion chamber, simple and practical, achieve the quick Thorough combustion of coal dust, the thermal efficiency is high, and coal-saving environmental protection effect improves greatly.
The object of the invention is to be achieved through the following technical solutions:
Coal dust oxygen-enriched burner, is characterized in that: be provided with cylindrical shape burner, and the inner end of this burner is stretched into furnace wall and communicated with burner hearth, and the part surrounding lightweight refracrory module that burner and burner hearth contact with furnace wall is wrapped up, and burner is fixedly connected with furnace wall by ring flange; Be provided with the coal dust wind passage with air pulverized coal conveying, coal dust wind channels peripheral is provided with the secondary oxygen passage be wrapped in outside coal dust wind passage, the center of coal dust wind passage is provided with an oxygen passage, is provided with secondary oxygen passway, coal dust wind passway and an oxygen passway at burner place.
The present invention improves further and the additional project of enforcement is:
An oxygen passway of a described oxygen passage inner end is provided with resistance to nozzles.
The Outer Tube termination of secondary oxygen passage and the external end head of an oxygen passage are respectively equipped with snap joint.
The furnace wall of described burner both sides is provided with fire hole and fiery verify.
The furnace wall that described burner is other is provided with thermocouple, and is provided with the controller carrying out signal with this thermocouple and be connected; Described coal dust wind passage, an oxygen passage and secondary oxygen passage are provided with electric control valve, and this electric control valve and described controller carry out control connection.
Coal dust oxygen-enriched burner of the present invention uses normal air pulverized coal conveying, an oxygen and secondary oxygen air supply channel are set, it is combustion-supporting that an oxygen and secondary oxygen enter burner hearth respectively, and oxygen divides two strands, work, passes at the center of pulverized coal flow and surrounding, coal dust fully mixes with oxygen, quick Thorough combustion, can save exhaust gas volumn, decrease flue gas loss, save coal dust consumption, also eliminate preheating chamber.Have structure innovation, simple and practical, efficiency of combustion is high, more economizes on coal, and coal smoke discharge capacity is few, more environmental protection, and can realize the advantage of control automatically.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention;
Fig. 2 is sectional structure schematic diagram of the present invention.
The profile of product of the present invention is not by the restriction of this figure, and only profile changes the protection domain also belonging to patent of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described, embodiment: see accompanying drawing, coal dust oxygen-enriched burner, be provided with cylindrical shape burner 7, the inner end of this burner is stretched into furnace wall and is communicated with burner hearth, the part surrounding lightweight refracrory module 4 that burner and burner hearth contact with furnace wall is wrapped up, and burner is fixedly connected with furnace wall by ring flange 8; Be provided with the coal dust wind passage 1 with air pulverized coal conveying, coal dust wind channels peripheral is provided with the secondary oxygen passage 12 be wrapped in outside coal dust wind passage, the center of coal dust wind passage is provided with an oxygen passage 2, is provided with secondary oxygen passway, coal dust wind passway and an oxygen passway at burner place.An oxygen passway of a described oxygen passage inner end is provided with resistance to nozzles 9.Outer Tube 3 termination of secondary oxygen passage and the external end head of an oxygen passage are respectively equipped with snap joint 5,6.The furnace wall of described burner both sides is provided with fire hole 10 and fiery verify 11.The furnace wall that described burner is other is provided with thermocouple, and is provided with the controller carrying out signal with this thermocouple and be connected; Described coal dust wind passage, an oxygen passage and secondary oxygen passage are provided with electric control valve, and this electric control valve and described controller carry out control connection.
The present embodiment is on probation through half a year, than conventional coal burner, exhaust gas volumn reduces by 65%, flue gas loss reduces, coal dust saving rate 40%, fire box temperature is all permanent, and can run according to stove and need adjusting furnace temperature and for coal dust and air feed oxygen amount easily, equipment cost and operating cost have and significantly reduce, and environment protecting is greatly improved.
It should be pointed out that under the premise without departing from the principles of the invention, can also make some improvement and change, these improve and change the protection domain that also should be considered as this patent.
Claims (1)
1. a coal dust oxygen-enriched burner, it is characterized in that: be provided with cylindrical shape burner (7), the inner end of this burner is stretched into furnace wall and is communicated with burner hearth, part surrounding lightweight refracrory module (4) that burner and burner hearth contact with furnace wall wraps up, and burner is fixedly connected with furnace wall by ring flange (8); Be provided with the coal dust wind passage (1) with air pulverized coal conveying, coal dust wind channels peripheral is provided with the secondary oxygen passage (12) be wrapped in outside coal dust wind passage, the center of coal dust wind passage is provided with an oxygen passage (2), is provided with secondary oxygen passway, coal dust wind passway and an oxygen passway at burner place; An oxygen passway of a described oxygen passage inner end is provided with resistance to nozzles (9); Outer Tube (3) termination of secondary oxygen passage and the external end head of an oxygen passage (2) are respectively equipped with snap joint (5,6); The furnace wall of described burner both sides is provided with fire hole (10) and fiery verify (11); The furnace wall that described burner is other is provided with thermocouple, and is provided with the controller carrying out signal with this thermocouple and be connected; Described coal dust wind passage, an oxygen passage and secondary oxygen passage are provided with electric control valve, and this electric control valve and described controller carry out control connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310542916.5A CN103528057B (en) | 2013-11-06 | 2013-11-06 | Coal dust oxygen-enriched burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310542916.5A CN103528057B (en) | 2013-11-06 | 2013-11-06 | Coal dust oxygen-enriched burner |
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| Publication Number | Publication Date |
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| CN103528057A CN103528057A (en) | 2014-01-22 |
| CN103528057B true CN103528057B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310542916.5A Active CN103528057B (en) | 2013-11-06 | 2013-11-06 | Coal dust oxygen-enriched burner |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333421B (en) * | 2015-11-26 | 2017-12-22 | 王立臣 | A kind of conveying powdered fuel polyoxy burner of non-air and method |
| CN106830068B (en) * | 2015-12-04 | 2018-06-22 | 云南冶金新立钛业有限公司 | Toluene spray gun and Titanium Dioxide Produced by Chloride Procedure production line |
Citations (10)
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| TW404983B (en) * | 1994-11-02 | 2000-09-11 | Nippon Kokan Kk | Scrap melting method |
| CN2428747Y (en) * | 2000-06-30 | 2001-05-02 | 钢铁研究总院 | Immersion-type coal-oxygen spray-gun |
| CN101169243A (en) * | 2006-10-24 | 2008-04-30 | 气体产品与化学公司 | Pulverized solid fuel burner |
| KR20100006606A (en) * | 2008-07-10 | 2010-01-21 | 박대용 | A coal burner of unnecessary preheating coal dust by combustion method |
| CN101825278A (en) * | 2010-05-28 | 2010-09-08 | 华中科技大学 | Oxygen-rich combustor |
| CN102261651A (en) * | 2011-07-28 | 2011-11-30 | 王立臣 | Oxygen-enriched burner and combustion method thereof |
| CN102322633A (en) * | 2011-09-16 | 2012-01-18 | 徐州燃控科技股份有限公司 | Pure-oxygen pulverized coal entraining combustor |
| CN103196137A (en) * | 2012-01-04 | 2013-07-10 | 刘柏谦 | Multi-burner pulverized coal combustion device |
| EP2623861A1 (en) * | 2010-09-30 | 2013-08-07 | Babcock-Hitachi Kabushiki Kaisha | Combustion system and method for operating same |
| WO2013148831A2 (en) * | 2012-03-27 | 2013-10-03 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Biomass combustion |
-
2013
- 2013-11-06 CN CN201310542916.5A patent/CN103528057B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW404983B (en) * | 1994-11-02 | 2000-09-11 | Nippon Kokan Kk | Scrap melting method |
| CN2428747Y (en) * | 2000-06-30 | 2001-05-02 | 钢铁研究总院 | Immersion-type coal-oxygen spray-gun |
| CN101169243A (en) * | 2006-10-24 | 2008-04-30 | 气体产品与化学公司 | Pulverized solid fuel burner |
| KR20100006606A (en) * | 2008-07-10 | 2010-01-21 | 박대용 | A coal burner of unnecessary preheating coal dust by combustion method |
| CN101825278A (en) * | 2010-05-28 | 2010-09-08 | 华中科技大学 | Oxygen-rich combustor |
| EP2623861A1 (en) * | 2010-09-30 | 2013-08-07 | Babcock-Hitachi Kabushiki Kaisha | Combustion system and method for operating same |
| CN102261651A (en) * | 2011-07-28 | 2011-11-30 | 王立臣 | Oxygen-enriched burner and combustion method thereof |
| CN102322633A (en) * | 2011-09-16 | 2012-01-18 | 徐州燃控科技股份有限公司 | Pure-oxygen pulverized coal entraining combustor |
| CN103196137A (en) * | 2012-01-04 | 2013-07-10 | 刘柏谦 | Multi-burner pulverized coal combustion device |
| WO2013148831A2 (en) * | 2012-03-27 | 2013-10-03 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Biomass combustion |
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| CN103528057A (en) | 2014-01-22 |
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