CN205279074U - Low nitrogen powder combustor of slag -tap formula - Google Patents

Low nitrogen powder combustor of slag -tap formula Download PDF

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Publication number
CN205279074U
CN205279074U CN201620028851.1U CN201620028851U CN205279074U CN 205279074 U CN205279074 U CN 205279074U CN 201620028851 U CN201620028851 U CN 201620028851U CN 205279074 U CN205279074 U CN 205279074U
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CN
China
Prior art keywords
slag
combustion
combustion chamber
low nitrogen
combustor
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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 - Fee Related
Application number
CN201620028851.1U
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Chinese (zh)
Inventor
马宗瑜
岂付春
刘春美
郭利亚
马怡琳
樊学红
杨朋
马强
胡丽丽
杨栋
王冠永
陈守云
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.)
Tangshan Jinsha burning heat energy Limited by Share Ltd
Original Assignee
TANGSHAN JINSHA COMBUSTION ENERGY SCIENCE AND TECHNOLOGY Ltd Co
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.)
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Application filed by TANGSHAN JINSHA COMBUSTION ENERGY SCIENCE AND TECHNOLOGY Ltd Co filed Critical TANGSHAN JINSHA COMBUSTION ENERGY SCIENCE AND TECHNOLOGY Ltd Co
Priority to CN201620028851.1U priority Critical patent/CN205279074U/en
Application granted granted Critical
Publication of CN205279074U publication Critical patent/CN205279074U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a powder combustor specifically is a low nitrogen powder combustor of slag -tap formula. Including powder spray gun, plenum, secondary plenum, still include the slag combustion chamber, slag combustion chamber one side sets up the plenum one time, and slag combustion chamber opposite side sets up the secondary plenum, and one time the powder spray gun is connected to the plenum, the slag combustion chamber is provided with a hypoxemia reflux cooling wind import, the slag combustion chamber is provided with liquid slag extractor constructs, and liquid slag extractor constructs falls the cinder notch and drawn forth by slag combustion chamber bottom, corresponds to fall the cinder notch and is provided with the pulp water groove. The utility model discloses a change the row's sediment mode and the burning atmosphere of combustor to but effective control nitrogen oxide's emission, furnace coking, low heat value buggy stable combustion and low ash fusion point pulverized coal combustion scheduling problem can promote coal adaptability by a wide margin, make its adaptation low heat value, low ash fusion point pulverized coal combustion.

Description

The low nitrogen powder combustor of slag tap formula
Technical field
The utility model relates to powder combustor, specifically the low nitrogen powder combustor of a kind of slag tap formula.
Background technology
The calorific value of coal adapted to, fugitive constituent, ash content, ash fusion point are all proposed higher requirement by existing coal burner, and the coal dust reserves required can be met at present and reduce in a large number, the price of coal continues high, add the cost of operation greatly, also result in the idle of a large amount of inferior coal charcoal simultaneously.
CN103062759A discloses the vertical boilers of a kind of powder combustor bottom type, and its powder combustor still belongs to traditional powder combustor arranging slag with flyash form. Owing to needing the ash fusion point considering coal ash, it is necessary to fire box temperature is controlled at about 1000 DEG C, just likely cause coal ash to melt in burner hearth after more than 1100 DEG C, stick to and cause slagging failure above furnace wall cooling.
Practical novel content
The utility model is intended to solve the problems referred to above of prior art existence, and provides one can significantly promote coal adaptive faculty so that it is adapt to the low nitrogen powder combustor of the slag tap formula of low heat value, the burning of low ash smelting point coal dust.
The utility model solves the technical scheme of its technical problem employing:
A low nitrogen powder combustor for slag tap formula, comprises powder spray gun, air compartment, a secondary air chamber, also comprises slag combustion chamber;
Slag combustor side arranges an air compartment, and another side, slag combustion chamber arranges secondary air chamber, and one time air compartment connects powder spray gun;
Slag combustion chamber is provided with a hypoxemia reflux cooling wind inlet;
Slag combustion chamber is provided with slag tap mechanism, and the cinder notch that falls of slag tap mechanism is drawn by slag bottom of combustion chamber, and the correspondence cinder notch that falls is provided with slag bath.
The low nitrogen powder combustor of the slag tap formula that technique scheme provides, during coal dust firing, coal dust sends into burner by powder spray gun, one time air compartment provides once low oxygen and aiding combustion wind, low oxygen and aiding combustion wind is mixed with part backflow flue gas, oxygen concentration in combustion-supporting wind is reduced, thus can slow down the combustionvelocity of coal dust, reduce the intensity of combustion of coal dust, the coefficient of excess of this combustion-supporting wind is less than 1 simultaneously, allow coal dust burn in the atmosphere of a reduction, thus can greatly reduce the generation of oxynitride. Flame, after slag combustion chambers burn, provides a certain amount of secondary combustion-supporting wind in time by secondary air chamber, impels it to carry out secondary combustion, to promote the burn-off rate of coal dust. This burner adopts the form of slag tap, it is possible to tries out in the coal dust of low heat value, low ash smelting point, thus can avoid the generation of burner hearth coking, reduces the running cost of user.
In sum, adopting the utility model of technique scheme, compared with prior art, its useful effect is:
By changing row's slag mode and the combustion atmospheres of burner, thus can effectively control the problems such as the discharge of oxynitride, the problem of burner hearth coking, low heat value coal dust stable burning and low ash smelting point coal dust burning, thus this burner makes slag tap and low nitrogen burning be implemented on dwarf boiler. Compared with traditional burner, the ability adapting to coal is significantly promoted, it is possible to adapt to the coal dust of low heat value, low ash smelting point; Fire box temperature can reach more than 1300 DEG C, can reduce the heating surface area of boiler like this, and the steel quantity consumption of boiler is reduced, and reduces the quantity discharged of flue gas, reduces consumption of coal; Owing to the amount of dust in burner hearth reduces, exhaust smoke level reduces, it is possible to strengthens the heat transfer efficiency of convection bank, reduces the investment of sack cleaner aspect, improves the thermo-efficiency of industrial furnace further.
As preferably, the utility model further technical scheme be:
One time air compartment is provided with once low oxygen and aiding combustion wind inlet, and the low oxygen and aiding combustion wind oxygen level that once low oxygen and aiding combustion wind inlet provides is lower than 21%.
The hypoxemia backflow wind oxygen level of a hypoxemia reflux cooling wind inlet offer is 5%.
A hypoxemia reflux cooling wind inlet is provided with flow control valve.
The secondary combustion-supporting wind inlet of secondary air chamber is provided with flow joint valve.
First air indoor are provided with combustion-supporting wind split channel, and each combustion-supporting wind split channel exit is provided with water conservancy diversion whirlwind sheet.
Water conservancy diversion whirlwind sheet is connected with the electronic performer by remote control, the swirl vane that formation activity is adjustable.
The angle modification scope of water conservancy diversion whirlwind sheet is 0-90 ��.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
In figure: 1-powder spray gun; 2-air compartment; 3-slag combustion chamber; 4-falls slag bath; 5-secondary air chamber; 11-coal dust import; 21-is low oxygen and aiding combustion wind inlet once; 31-hypoxemia reflux cooling wind inlet; 32-falls cinder notch; 51-secondary combustion-supporting wind inlet.
Embodiment
Below in conjunction with embodiment, the utility model is further elaborated, but the utility model is not formed any restriction by the present embodiment.
See Fig. 1, the low nitrogen burning device of a kind of slag tap formula that the present embodiment provides, primarily of powder spray gun 1, an air compartment 2, slag combustion chamber 3, secondary air chamber 5, and the slag bath that falls of the built-in slag tap mechanism in slag combustion chamber 3 and burner body outer setting is formed, the coal dust import 11 of powder spray gun 1 connects pulverizer air mechanism, an air compartment 2 is provided with once low oxygen and aiding combustion wind inlet 21, secondary air chamber 5 is provided with secondary combustion-supporting wind inlet 51, side, slag combustion chamber 3 connects an air compartment 2, another side connecting secondary air compartment 5 of slag combustion chamber 3, one time air compartment 2 connects powder spray gun 1, slag combustion chamber 3 is provided with a hypoxemia reflux cooling wind inlet 31, the cinder notch 32 that falls of slag tap mechanism is drawn by bottom slag combustion chamber 3, and the correspondence cinder notch 32 that falls is provided with slag bath 4. this burner is applicable to various stove kiln.
During this case burner combustion, coal dust sends into pulverized coal gun 1 by a pulverizer air by coal dust import 11, once low oxygen and aiding combustion wind enters into an air compartment 2 by once low oxygen and aiding combustion wind inlet 21, this low oxygen and aiding combustion wind is mixed with the backflow flue gas of a part, oxygen concentration in combustion-supporting wind is reduced to suitable concn, thus can slow down the combustionvelocity of coal dust, reduce the intensity of combustion of coal dust, the coefficient of excess of this combustion-supporting wind is less than 1 simultaneously, allow coal dust burn in the atmosphere of a reduction, thus can greatly reduce the generation of oxynitride. Pulverized coal flame is in slag combustion chamber 3 stable burning, this slag combustion chamber 3 is designed with a hypoxemia reflux cooling wind inlet 31, during running a certain amount of oxygen level be 5% hypoxemia backflow wind enter into slag burner 3 by a hypoxemia reflux cooling wind inlet 31, for preventing the temperature in slag combustion chamber 3 too high, cause it to burn out, secondary air chamber 5 is had below at slag burner 3, the Gas phase Smoke that secondary combustion-supporting wind is produced with burning in exit by secondary combustion-supporting wind inlet 51 mixes, carry out secondary combustion, to ensure the burn-off rate of coal dust.
Being designed with water conservancy diversion whirlwind sheet in an air compartment 2 corresponding on burner, this whirlwind sheet is connected with the electronic performer by remote control, thus can form movable adjustable swirl vane. By adjusting the angle of this swirl vane, it is possible to the size of adjustment flame, makes fuel efficient burning in effective burning situation, suppresses the production of oxynitride further, and reduces the discharge of oxynitride.
The foregoing is only the better feasible embodiment of the utility model, not thereby limit to interest field of the present utility model, the equivalence change that all utilization the utility model description are done, is all contained within interest field of the present utility model.

Claims (8)

1. a low nitrogen powder combustor for slag tap formula, comprises powder spray gun at (1), air compartment (2), a secondary air chamber (5), it is characterised in that:
Also comprise slag combustion chamber (4);
Slag combustion chamber (3) side arranges an air compartment (2), and slag combustion chamber (3) another side arranges secondary air chamber (5), and one time air compartment (2) connects powder spray gun (1);
Slag combustion chamber (3) is provided with hypoxemia reflux cooling wind inlet (31);
Slag combustion chamber (3) is provided with slag tap mechanism, and the cinder notch that falls (32) of slag tap mechanism is drawn by slag combustion chamber (3) bottom, and the correspondence cinder notch (32) that falls is provided with slag bath (4).
2. the low nitrogen powder combustor of slag tap formula according to claim 1, it is characterised in that: one time air compartment (2) is provided with once low oxygen and aiding combustion wind inlet (21), and the low oxygen and aiding combustion wind oxygen level that once low oxygen and aiding combustion wind inlet (21) provides is lower than 21%.
3. the low nitrogen powder combustor of slag tap formula according to claim 1, it is characterised in that: the hypoxemia backflow wind oxygen level that hypoxemia reflux cooling wind inlet (31) provides is 5%.
4. the low nitrogen powder combustor of slag tap formula according to claim 1 or 3, it is characterised in that: hypoxemia reflux cooling wind inlet (31) is provided with flow control valve.
5. the low nitrogen powder combustor of slag tap formula according to claim 1, it is characterised in that: the secondary combustion-supporting wind inlet (51) of secondary air chamber (5) is provided with flow control valve.
6. the low nitrogen powder combustor of slag tap formula according to claim 1, it is characterised in that: being provided with combustion-supporting wind split channel in an air compartment (2), each combustion-supporting wind split channel exit is provided with water conservancy diversion whirlwind sheet.
7. the low nitrogen powder combustor of slag tap formula according to claim 6, it is characterised in that: water conservancy diversion whirlwind sheet is connected with the electronic performer by remote control, the swirl vane that formation activity is adjustable.
8. the low nitrogen powder combustor of slag tap formula according to claim 7, it is characterised in that: the angle modification scope of water conservancy diversion whirlwind sheet is 0-90 ��.
CN201620028851.1U 2016-01-13 2016-01-13 Low nitrogen powder combustor of slag -tap formula Expired - Fee Related CN205279074U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620028851.1U CN205279074U (en) 2016-01-13 2016-01-13 Low nitrogen powder combustor of slag -tap formula

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620028851.1U CN205279074U (en) 2016-01-13 2016-01-13 Low nitrogen powder combustor of slag -tap formula

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CN205279074U true CN205279074U (en) 2016-06-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105485676A (en) * 2016-01-13 2016-04-13 唐山金沙燃烧热能科技有限公司 Liquid slagging type low-nitrogen powder combustor
CN110043897A (en) * 2019-04-26 2019-07-23 中原工学院 A kind of powdery stalk cleaning burner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105485676A (en) * 2016-01-13 2016-04-13 唐山金沙燃烧热能科技有限公司 Liquid slagging type low-nitrogen powder combustor
CN110043897A (en) * 2019-04-26 2019-07-23 中原工学院 A kind of powdery stalk cleaning burner

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GR01 Patent grant
C14 Grant of patent or utility model
CP03 Change of name, title or address

Address after: 064400 No. 655, science and technology road, hi tech Industrial Development Zone, Tangshan City, Hebei, Qian'an

Patentee after: Tangshan Jinsha burning heat energy Limited by Share Ltd

Address before: 064400 No. 655, science and technology road, Qian'an hi tech Industrial Development Zone, Hebei, Tangshan City, China

Patentee before: TANGSHAN JINSHA COMBUSTION ENERGY SCIENCE AND TECHNOLOGY LIMITED COMPANY

Address after: 064400 No. 655, science and technology road, hi tech Industrial Development Zone, Tangshan City, Hebei, Qian'an

Patentee after: Tangshan Jinsha burning heat energy Limited by Share Ltd

Address before: 064400 No. 655, science and technology road, Qian'an hi tech Industrial Development Zone, Hebei, Tangshan City, China

Patentee before: TANGSHAN JINSHA COMBUSTION ENERGY SCIENCE AND TECHNOLOGY LIMITED COMPANY

C56 Change in the name or address of the patentee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160601

Termination date: 20190113

CF01 Termination of patent right due to non-payment of annual fee