CN2050929U - Cyclone combustion furnace for coal power - Google Patents

Cyclone combustion furnace for coal power Download PDF

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Publication number
CN2050929U
CN2050929U CN 89200318 CN89200318U CN2050929U CN 2050929 U CN2050929 U CN 2050929U CN 89200318 CN89200318 CN 89200318 CN 89200318 U CN89200318 U CN 89200318U CN 2050929 U CN2050929 U CN 2050929U
Authority
CN
China
Prior art keywords
combustion chamber
ring casing
combustion
coal
furnace
Prior art date
Application number
CN 89200318
Other languages
Chinese (zh)
Inventor
郭伯伟
张永安
李成之
王强
张桂莲
刘廷祥
王伟
李春生
朱德厚
Original Assignee
东北工学院
营口轧钢厂
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 东北工学院, 营口轧钢厂 filed Critical 东北工学院
Priority to CN 89200318 priority Critical patent/CN2050929U/en
Publication of CN2050929U publication Critical patent/CN2050929U/en

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Abstract

The utility model relates to a vortex burner for pulverized coal, which is a combustion apparatus used for burning pulverized coal. The utility model is mainly composed of a vortex device provided with a feed inlet and communicated with a combustion chamber, the combustion chamber and a ring casing connected with the combustion chamber in the way of inclined joint, wherein the end cover of the ring casing has an exhaust nozzle, and the lateral wall of the combustion chamber has a secondary air nozzle and a slag notch. The utility model can realize the vortex combustion and the slag tapping of pulverized coal and has great worth for middle and small boilers.

Description

The burner that a kind of pulverized coal friring is used.

Rely on a wind that coal dust is brought in the combustion chamber, make it to mix with the secondary wind that is rotational flow and fully the cyclone firing equipment that produces of the coal method of burning use to some extent in industrial production.The advantage of this kind equipment be combustion intensity big, under less air consumption condition, can reach completing combustion, and then can obtain higher flame temperature, the lime-ash that generates after the fuel combustion also can be removed in the combustion chamber, utilize fine coal to carry out the jet flow burning relatively equally, technical is a significantly progress.But up to the present, at the industrial powdered coal cyclone burning equipment that is widely used, mainly be the large-scale vertical cyclone-combustion stove that thermal power plant boiler is used, indivedual heating furnaces are useful this cyclone-combustion stove also.But this powdered coal cyclone burning furnace apparatus is huge, involves great expense, and therefore is difficult to use on various coal-fired industry furnaces.

Purpose of design of the present utility model is to design a kind of small-sized coal dust vortex burner, guaranteeing that original vortex burner agent structure does not take place under the prerequisite of basic change, emphasis improves the position and the structure of combustion chamber, air port and coal feed point, make it to reach miniaturization, the designer furthers investigate for this reason, repetition test, the product that finally obtains are met the purpose of design.

The Cyclonic coal powder burner that newly designs is provided with coal feed point, overfiren air port, flame jet, slag-drip opening and combustion space etc., built refractory lining on the inwall of combustion space, the furnace wall of combustion space is equipped with cooling device, just be with the difference of prior art: an end that has the cyclone of a coal feed point along spiral case inwall tangential direction has fire hole, the other end is connected with the combustion chamber end cap that has certain taper by leading the coal pipe, the combustion chamber end cap is an end of round throat less chamber at the both sides end face, the other end of combustion chamber is an oval side mitered mutually with the end section of ring casing, the angle of ring casing central axis and combustion chamber central axis is 10~25 degree, the round nose that flame jet is opened at the ring casing other end covers, the flame jet boss of a convex is built in ring casing end cap inboard along flame jet, the combustion chamber has slag-drip opening near on the furnace wall, below of ring casing one side, and inboard tangential direction offers several overfiren air ports along the furnace wall.

The utility model of newly designing---Cyclonic coal powder burner is implemented.Now structural representation in conjunction with the embodiments is further described the utility model:

Accompanying drawing 1 is the axially more than half sectional structure schematic diagram of the utility model along the combustion chamber central axis;

Accompanying drawing 2 is the utility model A-A sectional views in accompanying drawing 1;

Accompanying drawing 3 is the utility model B-B sectional views in accompanying drawing 1;

Shown in accompanying drawing 1,2,3: concrete parts of the present utility model and structure mainly contain cyclone 1, coal feed point 2, fire hole 3, lead coal pipe 4, inlet end cap 5, combustion chamber 6, ring casing 7, flame jet 8, spout boss 9, slag-drip opening 10, scum pipe 11, scum pipe overfall 12, overfiren air port 13, secondary air flow control valve 14, cooling water import and export 15, cooling wall 16, refractory lining 17, thermometer hole 18, measurement, peep hole 19.Wherein each parts and structure are as described below form setting, installation.

Cyclone 1 has a spiral case, spiral case is provided with coal feed point 2 and fire hole 3, the opening direction of coal feed point is along the tangential direction of cyclone spiral case inwall, the opening direction of fire hole is along the axis direction of cyclone, cyclone the opposite direction of fire hole with lead coal pipe 4 and link, the other end of leading the coal pipe communicates with the combustion chamber end cap 5 that has 150 ° of taperings, combustion chamber end cap 5 covers a side that is round throat less chamber 6 at the two side ends section, the end section of ring casing 7 one sides is oval, opposite side has circular end cap, and ring casing 7 end sections are the side phase mitered of a side of ellipse with combustion chamber 6.The angle of ring casing central axis and combustion chamber central axis is 15 ° of degree.The round nose of ring casing 7 covers and has circular flame jet 8, it is 90 ° of degree and inwardly protruded spout boss 9 that tapering has been built along flame jet 8 in the ring casing end cap inboard of leaving flame jet 8, slag-drip opening 10 is driveed on furnace wall below close ring casing one end in combustion chamber, slag-drip opening 10 is divided into two sections, epimere is straight tubular, hypomere is expansion shape, and communicate with scum pipe 11, scum pipe is provided with gas overfall 12, on the sidewall of combustion chamber 6, leave 4 overfiren air ports 13 along cylinder side wall tangential direction opening, the secondary air flow control valve 14 of variable section is housed on the secondary air channel road that communicates with overfiren air port, on the shell internal protecting wall in the combustion high temperature space that combustion chamber and ring casing constitute cooling water being installed advances, outlet 15 and cooling wall 16 have all been built high-temperature refractory on the inwall in combustion high temperature space.

Operation principle of the present utility model is: enter in the spiral case of cyclone with the coal feed point of mixture on cyclone of coal dust when wind after, form eddy flow, eddy flow is met fully through the secondary wind facies of leading the coal pipe and entering into the combustion chamber and is mixed.After the igniting, coal dust can burn immediately.Because being the tangential direction along wall, wind and coal dust and secondary wind etc. enter into relevant space, so formed strong cyclone field.Emit heat behind the coal dust firing, the combustion product that forms high temperature ejects from flame jet, enter into burner hearth or boiler, and the lime-ash behind the coal dust firing at high temperature can be molten condition, and owing to be subjected to action of centrifugal force in the eddy flow field, got rid of on the furnace wall in the furnace wall, flow to the furnace wall downside by the furnace wall again and finally discharge with the slag tap mouth.The effect of ring casing is to make the coal dust that does not obtain burning in the combustion chamber to be back in the combustion chamber under the effect of swirling eddy, once more with the mixed combustion of secondary wind.

The utility model has the advantages that:

1, burning of coal efficient can reach more than 99%, reaches completing combustion, be conducive to energy-conservation, and to the strong adaptability of ature of coal.

2,80% lime-ash is deposited in the burner and with liquid form and gets rid of, dustiness is very low in the flame, and the waste gas of being discharged by stove can not cause atmospheric aerosol to pollute, and is conducive to environmental protection, can avoid stove that expensive cleaner is installed.

3, owing to dustiness in the furnace gas is low, then the deposition lime-ash is very few in the burner hearth, helps improving heat transfer condition, has improved control of industrial furnace home.

4, the structure of burner is comparatively simple, is easy to make install.Reliable operation.

Just because of the utility model has possessed above-mentioned advantage,, can be widely used on the middle-size and small-size industrial furnace of industries such as metallurgy, machinery, building materials, chemical industry therefore as a kind of novel burner.And obtain positive effect.

Claims (1)

  1. The burner that a kind of pulverized coal friring is used, this device is provided with coal feed point, overfiren air port, flame jet, slag-drip opening and combustion space etc., built refractory lining on the inwall of combustion space, be equipped with cooling device in the furnace wall of combustion space, it is characterized in that: an end that has the cyclone of coal feed point along spiral case inwall tangential direction has fire hole, the other end is connected with the combustion chamber end cap that has certain taper by leading the coal pipe, the combustion chamber end cap covers an end that is round throat less chamber at the both sides end face, the other end of combustion chamber is an oval side mitered mutually with the end section of ring casing, the angle of ring casing central axis and combustion chamber central axis is 10~25 °, the round nose that flame jet is opened at the ring casing other end covers, the spout boss of a band certain taper convex is built in ring casing end cap inboard along flame jet, the combustion chamber has slag-drip opening near on the furnace wall, below of ring casing one side, and inboard tangential direction offers several overfiren air ports along the furnace wall.
CN 89200318 1989-01-04 1989-01-04 Cyclone combustion furnace for coal power CN2050929U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 89200318 CN2050929U (en) 1989-01-04 1989-01-04 Cyclone combustion furnace for coal power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 89200318 CN2050929U (en) 1989-01-04 1989-01-04 Cyclone combustion furnace for coal power

Publications (1)

Publication Number Publication Date
CN2050929U true CN2050929U (en) 1990-01-10

Family

ID=4858430

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 89200318 CN2050929U (en) 1989-01-04 1989-01-04 Cyclone combustion furnace for coal power

Country Status (1)

Country Link
CN (1) CN2050929U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100422641C (en) * 2006-06-09 2008-10-01 唐艳芬 Cyclone burner and its operation method
CN101806453A (en) * 2010-04-26 2010-08-18 中国科学院广州能源研究所 Vertical air-cooled pulverized coal burner capable of realizing continuous slag tapping
CN101915420A (en) * 2010-05-19 2010-12-15 上海题桥能源科技发展有限公司 Low-NOx dry and wet deslagging dual-swirl coal-dust combustion device for
CN102628589A (en) * 2011-09-08 2012-08-08 上海题桥能源科技发展有限公司 High-temperature and low-NOX combustion method and device for pulverized coal
CN103411210A (en) * 2013-08-05 2013-11-27 珠海查理科技节能环保有限公司 Vertical fire whirl combustion device
CN106247326A (en) * 2016-07-27 2016-12-21 北京神雾环境能源科技集团股份有限公司 A kind of cyclone classified burner and combustion method thereof
CN106277856A (en) * 2016-08-17 2017-01-04 大峘集团有限公司 Coal-fired Calx sleeve kiln combusting room device and Slagoff method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100422641C (en) * 2006-06-09 2008-10-01 唐艳芬 Cyclone burner and its operation method
CN101806453A (en) * 2010-04-26 2010-08-18 中国科学院广州能源研究所 Vertical air-cooled pulverized coal burner capable of realizing continuous slag tapping
CN101915420A (en) * 2010-05-19 2010-12-15 上海题桥能源科技发展有限公司 Low-NOx dry and wet deslagging dual-swirl coal-dust combustion device for
CN102628589A (en) * 2011-09-08 2012-08-08 上海题桥能源科技发展有限公司 High-temperature and low-NOX combustion method and device for pulverized coal
CN103411210A (en) * 2013-08-05 2013-11-27 珠海查理科技节能环保有限公司 Vertical fire whirl combustion device
CN106247326A (en) * 2016-07-27 2016-12-21 北京神雾环境能源科技集团股份有限公司 A kind of cyclone classified burner and combustion method thereof
CN106277856A (en) * 2016-08-17 2017-01-04 大峘集团有限公司 Coal-fired Calx sleeve kiln combusting room device and Slagoff method thereof

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C06 Publication
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C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
CX01 Expiry of patent term
C17 Cessation of patent right
RN01 Renewal of patent term
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee