CN200961855Y - Plasma coal powder burner - Google Patents

Plasma coal powder burner Download PDF

Info

Publication number
CN200961855Y
CN200961855Y CN 200620013109 CN200620013109U CN200961855Y CN 200961855 Y CN200961855 Y CN 200961855Y CN 200620013109 CN200620013109 CN 200620013109 CN 200620013109 U CN200620013109 U CN 200620013109U CN 200961855 Y CN200961855 Y CN 200961855Y
Authority
CN
China
Prior art keywords
burner
combustion chamber
pulverized coal
coal
wind
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 200620013109
Other languages
Chinese (zh)
Inventor
王文举
任国宏
蒋允刚
唐鹏程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XUZHOU COMBUSTION CONTROL RESEARCH INSTITUTE Co Ltd
Original Assignee
XUZHOU COMBUSTION CONTROL RESEARCH INSTITUTE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XUZHOU COMBUSTION CONTROL RESEARCH INSTITUTE Co Ltd filed Critical XUZHOU COMBUSTION CONTROL RESEARCH INSTITUTE Co Ltd
Priority to CN 200620013109 priority Critical patent/CN200961855Y/en
Application granted granted Critical
Publication of CN200961855Y publication Critical patent/CN200961855Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

A plasma pulverized coal burner, which comprises a first-order burner, a throat of the first-order burner, a second-order burner, a throat of the second-order burner, an outer sleeve, a pulverized coal shade separating device, and a facing bar, is used to directly ignite the pulverized coal in the way of ignition, stable combustion, combustion assistance in a coal-burning boiler. The utility model has the advantages that a gust of pulverized coal wind is divided into two flows of dense pulverized coal and light pulverized coal after going through the pulverized coal shade separating device, wherein the dense pulverized coal flow goes to the first-order burner, is ignited by the plasma arc, and expands the burning area in the second-order burner, the light pulverized coal flow goes to the ring form space between the burner and the outer sleeve, cools the wall of the burner, projects from the outlet of the outer sleeve and engages in burning, and a single pipe system of a cooling burner surface is not need to be arranged.

Description

Plasma powdered-coal burner
Technical field
The utility model relates to a kind of at coal-burning boiler igniting, steady combustion, direct firing coal-dust Plasma powdered-coal burner when combustion-supporting, is one of the capital equipment of " coal-burning boiler plasma non-oil ignition combustion system ".
Background technology
General sparking mode was when coal burning boiler of power station started at present: heat up, boost with igniter point oil burner earlier, when each relevant parameter of boiler reaches the requirement of throwing powder, start pulverized coal preparation system and coal burner, realize load carrying; When boiler load is reduced to 50% left and right sides, also must throws the steady combustion of oil and could guarantee that boiler normally moves.According to statistics, power system is used for the station boiler igniting every year, and steady combustion combustion-supportingly reaches nearly ten million ton with innage, accounts for 15% of the total amount of fuel in the whole nation, is worth tens billion of units, has consumed the great amount of fuel oil resource.
In recent years, more domestic and international R﹠D institutions and enterprise, be devoted to study plasma ignition system, be used for the igniting and the steady combustion of coal-burning boiler, its plasma ignition combustion device is tried out in some power plant, but also has many problems, and wherein " Plasma powdered-coal burner " weak point mainly is: the mode of using secondary wind or blowing separately, burner walls at different levels are cooled off the structure more complicated.
Summary of the invention
In order to overcome the problems referred to above of existing Plasma powdered-coal burner, the utility model provides a kind of Plasma powdered-coal burner, can use the wall of the light phase powder general mood stream cooling combustion chambers at different levels of a wind, the pipe-line system that need not to install independent cooling combustion locular wall face, burner structure is simple.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of Plasma powdered-coal burner, it comprises one-level combustion chamber, one-level combustion chamber throat, secondary combustion chamber, throat of secondary combustion chamber, outer sleeve, coal powder light-dark separation device, gripper shoe.The I and II combustion chamber is columnar structured, and its middle part all is designed to restrain the Venturi tube structure that afterwards spreads earlier, converges to minimum place and is combustion chamber throat.I and II combustion chamber coaxial arrangement, fixing with square gripper shoe of 2-4 block length and outer sleeve welding respectively.In a wind porch of outer sleeve, the coal powder light-dark separation device that concentrates loop type is set.
The beneficial effects of the utility model are:
One time wind is divided into two strands of air-flows of concentrated phase powder wind and the light wind of powder mutually through coal powder light-dark separation device, concentrated phase powder general mood flows to into the one-level combustion chamber is lighted by plasma arc, use the pulverized coal flame that from the one-level combustion chamber, sprays to remove to light the coal dust that enters secondary combustion chamber again, the purpose that the method realization that utilizes fractional combustion power to amplify is step by step lighted a large amount of coal dusts with the small-power incendiary source, light phase powder general mood flows to the annular gap between combustion chamber and combustion chamber or combustion chamber and outer sleeve, and the wall of cooling combustion chamber is avoided combustion chambers at different levels coking or scaling loss and entered the next stage combustion chamber or burner hearth participation burning.Compare with the existing technology of the wall of the secondary wind or the cooling combustion chamber of blowing separately of using, structure is greatly simplified.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1: Plasma powdered-coal burner schematic diagram.
1. outer sleeves among the figure, 2. secondary combustion chamber, 3. one-level combustion chamber, 4. secondary air box, 5. secondary wind, 6. coal powder light-dark separation device, 7. a wind, 8. plasma arc, 9. plasma generator, 10. gripper shoe 1,11. one-level combustion chamber throat, 12. gripper shoes, 2,13. throats of secondary combustion chamber.
The specific embodiment
Among Fig. 1, a wind (7) is through coal powder light-dark separation device (6), be divided into two strands of air-flows of concentrated phase powder wind and the light wind of powder mutually, concentrated phase powder general mood flows to into one-level combustion chamber (3), lighted by the plasma arc (8) that plasma generator (9) produces, the coal dust that sprays into secondary combustion chamber of secondary combustion chamber (2) through one-level combustion chamber throat (11) is at a high speed lighted, and flame sprays into burner hearth and thin powdered coal air-flow and secondary wind (5) junction through throat of secondary combustion chamber (13) and burns away.Light phase powder general mood flows to the annular gap with outer sleeve (1) into one-level combustion chamber (3), secondary combustion chamber (2), and the wall of cooling combustion chamber also participates in burning from the outlet ejection of outer sleeve.

Claims (2)

1. a Plasma powdered-coal burner has coaxial mounted two-stage combustion device, it is characterized in that: it comprises one-level combustion chamber, one-level combustion chamber throat, secondary combustion chamber, throat of secondary combustion chamber, outer sleeve, coal powder light-dark separation device, gripper shoe; The I and II combustion chamber is columnar structured, and its middle part all is designed to restrain the Venturi tube structure that afterwards spreads earlier, converges to minimum place and is combustion chamber throat; I and II combustion chamber coaxial arrangement, fixing with square gripper shoe of 2-4 block length and outer sleeve welding respectively.
2. Plasma powdered-coal burner according to claim 1 is characterized in that: a wind porch at outer sleeve, coal powder light-dark separation device is set, and one time wind is divided into two strands of air-flows of concentrated phase powder wind and the light wind of powder mutually through coal powder light-dark separation device.
CN 200620013109 2006-04-10 2006-04-10 Plasma coal powder burner Expired - Lifetime CN200961855Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620013109 CN200961855Y (en) 2006-04-10 2006-04-10 Plasma coal powder burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620013109 CN200961855Y (en) 2006-04-10 2006-04-10 Plasma coal powder burner

Publications (1)

Publication Number Publication Date
CN200961855Y true CN200961855Y (en) 2007-10-17

Family

ID=38798373

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620013109 Expired - Lifetime CN200961855Y (en) 2006-04-10 2006-04-10 Plasma coal powder burner

Country Status (1)

Country Link
CN (1) CN200961855Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009092234A1 (en) * 2007-12-27 2009-07-30 Beijing Guangyao Electricity Equipment Co., Ltd An ac plasma ejection gun and its power supply method and a pulverized coal burner
CN101900330A (en) * 2010-07-23 2010-12-01 西安交通大学 Plasma ignition burner for anthracite
CN101639217B (en) * 2008-08-01 2011-09-21 北京光耀能源技术股份有限公司 Two-stage speed-down pulverized coal burner
CN104266197A (en) * 2014-09-16 2015-01-07 黄河科技学院 Plasma waste incineration device and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009092234A1 (en) * 2007-12-27 2009-07-30 Beijing Guangyao Electricity Equipment Co., Ltd An ac plasma ejection gun and its power supply method and a pulverized coal burner
US20100300335A1 (en) * 2007-12-27 2010-12-02 Beijing GuangYao Electricity Equipment Co. Ltd AC Plasma Ejection Gun, the Method for Supplying Power to it and Pulverized Coal Burner
CN101639217B (en) * 2008-08-01 2011-09-21 北京光耀能源技术股份有限公司 Two-stage speed-down pulverized coal burner
CN101900330A (en) * 2010-07-23 2010-12-01 西安交通大学 Plasma ignition burner for anthracite
CN101900330B (en) * 2010-07-23 2012-03-28 西安交通大学 Plasma ignition burner for anthracite
CN104266197A (en) * 2014-09-16 2015-01-07 黄河科技学院 Plasma waste incineration device and method

Similar Documents

Publication Publication Date Title
CN200961855Y (en) Plasma coal powder burner
CN101424398B (en) Concentrated phase high-temperature oxygen-enriched oilless ignition combustion apparatus
CN102269424B (en) Oxygen enrichment plasma oil-free ignition and stable combustion method
CN100441953C (en) Micro-oil plasma composite ignition and combustion-stabilization method and device therefor
CN101925780B (en) Boiler structure
CN101324341A (en) Apparatus and method of pulverized coal boiler pure oxygen ignition / steady combustion
CN2646575Y (en) DC burner ignition device of pulverized coal firing boiler
CN201170549Y (en) Horizontal concentrating type micro oil gasification firing powered coal burner
CN201954535U (en) Ignition air flue below circulating fluidized bed
CN101206028B (en) Method for firing coal-dust airflow by flue gas injection and ignition combustor
CN101329064A (en) Side direction multilevel open type igniting center powder feeding vortex combustor of small oil mass gasification combustion
CN2658580Y (en) Pulverizer coal burner with micro oil, gas igniter
CN202532467U (en) Arrangement method of micro-oil ignition device
CN202188501U (en) Ignition device for W-shaped flame boiler
CN100523607C (en) Direct current coal powder burner
CN201106844Y (en) Horizontal darkandlight micro-oil firing pulverized coal burner
CN202532455U (en) Arrangement mode of plasma oil-free ignition device
CN104344404A (en) Low-nitrogen type pulverized coal combustion machine without requirement for continuous ignition source
CN2830897Y (en) Micro oil gasified boiler ignitor
CN103836620A (en) Oxygen-enriched micro-oil fractional combustion device
CN202532468U (en) Coal dust airflow grading combustion sleeve for combustor
CN201844417U (en) Rich oxygen ignition device for pulverized coal fired boiler
CN102980205B (en) Technology and device for cold-state ignition of low-emission boiler
CN103225803A (en) Biomass fuel and natural gas mixed combustion system
CN201014502Y (en) Dual-oil gun fuel-economizing combustor

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Xuzhou Huayuan Combustion Control Co., Ltd.

Assignor: Xuzhou Combustion Control Research Institute Co., Ltd.

Contract fulfillment period: 2008.7.30 to 2011.7.30 contract change

Contract record no.: 2008320001060

Denomination of invention: Plasma coal powder burner

Granted publication date: 20071017

License type: Exclusive license

Record date: 20081027

Assignee: Xuzhou Huayuan Combustion Control Co., Ltd.

Assignor: Xuzhou Combustion Control Research Institute Co., Ltd.

Contract fulfillment period: 2008.7.30 to 2011.7.30

Contract record no.: 2008320001060

Denomination of utility model: Plasma coal powder burner

Granted publication date: 20071017

License type: Exclusive license

Record date: 20081027

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.7.30 TO 2011.7.30; CHANGE OF CONTRACT

Name of requester: XUZHOU HUAYUAN COMBUSTION CONTROL ENGINEERING CO.,

Effective date: 20081027

CX01 Expiry of patent term

Granted publication date: 20071017

Granted publication date: 20071017

EXPY Termination of patent right or utility model
DD01 Delivery of document by public notice

Addressee: Xuzhou Combustion Control Research Institute Co., Ltd.

Document name: Notification of Expiration of Patent Right Duration

Addressee: Xuzhou Combustion Control Research Institute Co., Ltd.

Document name: Notification of Expiration of Patent Right Duration