CN103528057A - Pulverized coal oxygen-rich combustor - Google Patents
Pulverized coal oxygen-rich combustor Download PDFInfo
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- CN103528057A CN103528057A CN201310542916.5A CN201310542916A CN103528057A CN 103528057 A CN103528057 A CN 103528057A CN 201310542916 A CN201310542916 A CN 201310542916A CN 103528057 A CN103528057 A CN 103528057A
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- oxygen
- burner
- coal dust
- passage
- furnace wall
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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 pulverized coal oxygen-rich combustor which is provided with a cylindrical burner. The inner end of the cylindrical burner extends into a furnace wall to be communicated with a hearth, the periphery of the cylindrical burner is wrapped by lightweight refracrory materials, and the burner is fixedly connected with the furnace wall through a flange plate. A pulverized coal air channel is arranged, a secondary oxygen channel is arranged on the outer periphery of the pulverized coal air channel, a primary oxygen channel is arranged in the center of the pulverized coal air channel, and a fire-proof mouth is formed in the inner end of the primary oxygen channel. Quick couplings are arranged at the outer end of the primary oxygen channel and the outer end of the secondary oxygen channel. A thermocouple is arranged on the furnace wall beside the burner. Electronic control valves are arranged on the pulverized coal air channel, the primary oxygen channel and the secondary oxygen channel, and controllers in control connection with the thermocouple and the electronic control valves are arranged. The pulverized coal oxygen-rich combustor is suitable for pulverized coal combustion, innovative in structure, simple, practical and high in combustion efficiency, saves more coal, is less in soot discharge and more environmentally friendly, and can achieve automatic control.
Description
Technical field
The invention belongs to a kind of coal combustion equipment and 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, the heating power thermal hardware that the coal of take is fuel, applies still very extensive.This kind equipment mostly will arrange coal burner, and for a long time, people, in order to economize on coal better and to improve burning of coal efficiency and found out a lot of ways, have designed diversified coal burner.Used coal burner mostly has improvement to a certain degree aspect the raising burning of coal efficiency of economizing on coal.But still more reasonable structure need to be proposed, economize on coal and the better coal burner of burning of coal efficiency, to meet the requirements at the higher level of production, energy-saving and environmental protection.Common coal burner uses coal dust as fuel, and air, as medium transport coal dust, is a wind.It is combustion-supporting that an other road normal air blasts burner hearth from the peripheral annular space of coal dust wind, is Secondary Air, and burner and burner hearth junction arrange precombustion chamber, for guaranteeing that coal dust fully burns.The structure of this coal burner is comparatively reasonable, but still requires further improvement.
Summary of the invention
The object of the invention is in order 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 minute one time oxygen and secondary oxygen, saved precombustion chamber or combustion chamber, simple and practical, realized the fully burning fast 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, the inner end of this burner is stretched into furnace wall and communicated with burner hearth, lightweight refracrory module parcel for the part surrounding that burner contacts with furnace wall with burner hearth, 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 passage is arranged with the secondary oxygen passage that is wrapped in coal dust wind passage outside outward, the center of coal dust wind passage is provided with oxygen passage one time, is provided with secondary oxygen passway, coal dust wind passway and an oxygen passway at burner place.
The present invention further improves and the additional project of enforcement is:
An oxygen passway of a described oxygen passage inner end is provided with fire-resistant mouth.
The Outer Tube termination of secondary oxygen passage and the external end head of an oxygen passage are respectively equipped with snap joint.
On the furnace wall of described burner both sides, be provided with fire hole and fiery verify.
On the other furnace wall of described burner, be provided with thermocouple, and be provided with this thermocouple and carry out the controller that signal is connected; On described coal dust wind passage, oxygen passage and secondary oxygen passage, be provided with electric control valve, this electric control valve and described controller carry out control connection.
Coal dust oxygen-enriched burner of the present invention is used normal air pulverized coal conveying, oxygen and secondary oxygen air supply channel are set, it is combustion-supporting that oxygen and secondary oxygen enter respectively burner hearth, and oxygen divides does two strands, in center and the surrounding of pulverized coal flow, passes into, coal dust fully mixes with oxygen, fully burning, can save exhaust gas volumn fast, has reduced flue gas loss, save coal dust consumption, also saved 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 automatically controlling.
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 subject to the restriction of this figure, and only profile changes the protection domain that also belongs to patent of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described, embodiment: referring to 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, lightweight refracrory module 4 parcels for the part surrounding that burner contacts with furnace wall with burner hearth, 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 passage is arranged with the secondary oxygen passage 12 that is wrapped in coal dust wind passage outside outward, the center of coal dust wind passage is provided with oxygen passage 2 one time, 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 fire-resistant mouth 9.Outer Tube 3 terminations of secondary oxygen passage and the external end head of an oxygen passage are respectively equipped with snap joint 5,6.On the furnace wall of described burner both sides, be provided with fire hole 10 and fiery verify 11.On the other furnace wall of described burner, be provided with thermocouple, and be provided with this thermocouple and carry out the controller that signal is connected; On described coal dust wind passage, oxygen passage and secondary oxygen passage, be provided with electric control valve, 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 move needs adjusting furnace temperature and confession coal dust and air feed oxygen amount easily according to stove, equipment cost and operating cost have significantly reduction, 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 improvement and change also should be considered as the protection domain of this patent.
Claims (5)
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, lightweight refracrory module (4) parcel for the part surrounding that burner contacts with furnace wall with burner hearth, 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 passage is arranged with the secondary oxygen passage (12) that is wrapped in coal dust wind passage outside outward, 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.
2. coal dust oxygen-enriched burner according to claim 1, is characterized in that: an oxygen passway of a described oxygen passage inner end is provided with fire-resistant mouth (9).
3. coal dust oxygen-enriched burner according to claim 1, is characterized in that: 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).
4. coal dust oxygen-enriched burner according to claim 1, is characterized in that: on the furnace wall of described burner both sides, be provided with fire hole (10) and fiery verify (11).
5. according to claim 1,2,3, one of 4 described coal dust oxygen-enriched burners, it is characterized in that: on the other furnace wall of described burner, be provided with thermocouple, and be provided with this thermocouple and carry out the controller that signal is connected; On described coal dust wind passage, oxygen passage and secondary oxygen passage, be provided with electric control valve, 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 |
Publications (2)
| Publication Number | Publication Date |
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| CN103528057A true CN103528057A (en) | 2014-01-22 |
| CN103528057B 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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| CN (1) | CN103528057B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333421A (en) * | 2015-11-26 | 2016-02-17 | 王立臣 | Non-air-conveying powdered fuel oxygen-rich combustion device and method |
| CN106830068A (en) * | 2015-12-04 | 2017-06-13 | 云南冶金新立钛业有限公司 | Toluene spray gun and Titanium Dioxide Produced by Chloride Procedure production line |
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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 |
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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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333421A (en) * | 2015-11-26 | 2016-02-17 | 王立臣 | Non-air-conveying powdered fuel oxygen-rich combustion device and method |
| CN106830068A (en) * | 2015-12-04 | 2017-06-13 | 云南冶金新立钛业有限公司 | Toluene spray gun and Titanium Dioxide Produced by Chloride Procedure production line |
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| Publication number | Publication date |
|---|---|
| CN103528057B (en) | 2015-10-21 |
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