CN202955690U - Rotary cement kiln pulverized coal burner with oxygen enrichment tiny-oil ignition device - Google Patents
Rotary cement kiln pulverized coal burner with oxygen enrichment tiny-oil ignition device Download PDFInfo
- Publication number
- CN202955690U CN202955690U CN2012206727957U CN201220672795U CN202955690U CN 202955690 U CN202955690 U CN 202955690U CN 2012206727957 U CN2012206727957 U CN 2012206727957U CN 201220672795 U CN201220672795 U CN 201220672795U CN 202955690 U CN202955690 U CN 202955690U
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- Prior art keywords
- tiny
- air channel
- oil ignition
- air duct
- oil
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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.)
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- 239000003245 coal Substances 0.000 title claims abstract description 57
- 239000004568 cement Substances 0.000 title claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 12
- 239000001301 oxygen Substances 0.000 title claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000002802 bituminous coal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
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Classifications
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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 utility model discloses a rotary cement kiln pulverized coal burner with an oxygen enrichment tiny-oil ignition device. A central air duct, a cyclone secondary air duct, a coal air duct and an axial air duct are arranged on the front part of the burner, and a secondary air duct and a primary air duct are arranged on the rear part of the burner; a tiny-oil ignition pulverized coal pipeline is inserted into the center of the central air duct, and the secondary air duct is respectively communicated with the axial air duct, the cyclone secondary air duct and an air film cooling duct; and the primary air duct is respectively communicated with the coal air duct and the tiny-oil ignition pulverized coal pipeline, a first baffle is fixed on a communication part of the primary air duct and the coal air duct, and a second baffle is fixed on the communication part of the primary air duct and the tiny-oil ignition pulverized coal pipeline. The tiny-oil ignition device is fixed in the tiny-oil ignition pulverized coal pipeline, and a port of a tiny-oil ignition oil gun of the tiny-oil ignition device faces the front end of the burner; and low-grade coal can be burnt in the burner, oil consumption can be reduced, NOx emission is lowered, and energy-saving and emission reduction effects are realized.
Description
Technical field
The utility model relates to a kind of burner, relates in particular to a kind of coal powder burner for cement rotary kiln with the oxygen-enriched tiny-oil ignition device that is applicable to cement manufacturing industry.
Background technology
Coal burner for rotary kiln, be energy-saving equipment, is also environmental protection equipment, and country especially cement industry is realized to energy-saving and emission-reduction have very important effect.And current Coal burner for rotary kiln is developing to burning low-grade coal and spent fuel by burning high-quality bituminous coal, so the transformation of burner is imperative.Use low-grade coal and can make and catch fire, burn and burn all more difficultly, and equipment fuel ignition auxiliary combustion equipment just can well improve burning condition.The tiny-oil ignition technology is a kind of combustion technology of high efficiency, oil saving, and the principle of its replace oil with coal meets the energy policy of China, is widely used in boiler, and does not also apply precedent in cement industry.In addition, use low-grade coal and also can produce a large amount of NOx, and the discharge of NOx also becomes more and more stricter along with the enforcement of new standard " fossil-fuel power plant atmospheric pollutant emission standard ".Therefore, how to design oil ignition device, reduce oil consumption, realize energy-efficiently, and the discharge of strictly controlling NOx just becomes the key point of burner reconstruction.
Summary of the invention
Problem for above existence, the purpose of this utility model is to provide a kind of coal powder burner for cement rotary kiln with the oxygen-enriched tiny-oil ignition device, and this burner can use low-grade coal, and can reduce oil consumption, reduce the discharge of NOx, reach the effect of energy-saving and emission-reduction.
The technical solution adopted in the utility model is: a kind of coal powder burner for cement rotary kiln with the oxygen-enriched tiny-oil ignition device, this burner is cylindric, its outer surface is housing, some coaxial pipes are fixed on the front portion of housing, by the front portion of housing from interior centre wind air channel, ,Mei Feng air channel, swirl secondary air air channel and the axial flow wind air channel of being separated into successively outward; The front end in centre wind air channel is bluff body fixedly, has an axial flow wind air compartment in axial flow wind air channel; The tiny-oil ignition pulverized coal channel inserts the central authorities in centre wind air channel, and the air channel around the tiny-oil ignition pulverized coal channel in the centre wind air channel is the air film cooling air channel; The rear portion of housing has Secondary Air air channel and a wind air channel; The Secondary Air air channel communicates with axial flow wind air channel, swirl secondary air air channel and air film cooling air channel respectively; One time the wind air channel communicates with coal wind air channel and tiny-oil ignition pulverized coal channel respectively, and the first baffle plate is fixed at the place of communicating, Yu Meifeng air channel, a wind air channel, and wind air channel and the tiny-oil ignition pulverized coal channel place of communicating be second baffle fixedly.The tiny-oil ignition device is fixed in the tiny-oil ignition pulverized coal channel, and the oil gun mouth of the tiny-oil ignition oil gun of tiny-oil ignition device is towards the burner front end.
The beneficial effect the utlity model has is:
1, the middle air channel of burner of the present utility model is furnished with the tiny-oil ignition device, has improved burning condition, and replace oil with coal, reduces oil consumption, greatly reduces cost;
2, burner of the present utility model carries out oxygen-enriched combusting, thereby accelerates burning velocity, promotes combustion completion;
3, the tiny-oil ignition device of the burner of the present utility model outside is furnished with the air film cooling air, thereby anti-locking apparatus is burned and the wall slagging scorification;
4, burner coal adaptability of the present utility model is wide, not only can use high-quality bituminous coal, and can use low-grade coal;
5, the transformation of burner of the present utility model is more convenient, and required change is little;
6, burner modulability of the present utility model is better.
The accompanying drawing explanation
Fig. 1 is the profile with the coal powder burner for cement rotary kiln of oxygen-enriched tiny-oil ignition;
Fig. 2 is the side view of Fig. 1;
In figure: housing 1, axial flow wind air channel 2, coal wind air channel 3, axial flow wind air compartment 4, swirl secondary air air channel 5, air film cooling air channel 6, Secondary Air air channel 7, the first baffle plate 8, wind air channel 9, second baffle 10, tiny-oil ignition device 11, tiny-oil ignition oil gun 12, centre wind air channel 13, bluff body 14, tiny-oil ignition pulverized coal channel 15.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As illustrated in fig. 1 and 2, the coal powder burner for cement rotary kiln of the utility model band oxygen-enriched tiny-oil ignition device is cylindric, its outer surface is housing 1, some coaxial pipes are fixed on the front portion of housing 1, by the front portion of housing 1, from interior centre wind air channel 13, swirl secondary air air channel 5, coal wind air channel 3, the axial flow wind air channel 2 of being separated into successively outward, the front end in centre wind air channel 13 is bluff body 14 fixedly.There is an axial flow wind air compartment 4 in axial flow wind air channel 2.Tiny-oil ignition pulverized coal channel 15 inserts the central authorities in centre wind air channel 13, the part of centre wind air channel 13 beyond tiny-oil ignition pulverized coal channel 15 is air film cooling air channel 6, the rear portion of housing 1 has Secondary Air air channel 7 and a wind air channel 9, and Secondary Air air channel 7 communicates with axial flow wind air channel 2, swirl secondary air air channel 5 and air film cooling air channel 6 respectively.One time wind air channel 9 communicates with coal wind air channel 3 and tiny-oil ignition pulverized coal channel 15 respectively, and fixedly second baffle 10 of 8, wind air channels 9 of the first baffle plate and tiny-oil ignition pulverized coal channel 15 places of communicating is fixed at wind air channel 9 and 3 places of communicating, coal wind air channel.Tiny-oil ignition device 11 is fixed in tiny-oil ignition pulverized coal channel 15, and the oil gun mouth of the tiny-oil ignition oil gun 12 of tiny-oil ignition device 11 is towards the burner front end.
The course of work of the present utility model is as follows: while opening stove, close the first baffle plate 8, open second baffle 10, guarantee that burner presents the oxygen enrichment state, promote that coal dust carries out oxygen-enriched combusting, thereby the quickening burning velocity, one time wind enters tiny-oil ignition pulverized coal channel 15 by a wind air channel 9, in tiny-oil ignition device 11, through tiny-oil ignition oil gun 12, ignites and carries out fractional combustion, thereby improved burning condition, realize replace oil with coal, reduce the effect of oil consumption, greatly reduce cost simultaneously; Combustion flame enters cement kiln by bluff body 14, tiny-oil ignition pulverized coal channel 15 outer surfaces are the air film cooling air 6 from Secondary Air air channel 5 around one deck, thereby prevent that burner is burned and the wall slagging scorification, after burner enters normal operation, close second baffle 10, open the first baffle plate 8, one time wind enters coal wind air channel 3 through a wind air channel 9, enter the kiln internal combustion, Secondary Air enters swirl secondary air air channel 5 through Secondary Air air channel 7 again, then enters the supplementary required air capacity of coal dust firing in kiln.
Burner coal adaptability of the present utility model is wide, not only can use high-quality bituminous coal, and can use low-grade coal, and applicability is wide.
Claims (1)
1. the coal powder burner for cement rotary kiln with the oxygen-enriched tiny-oil ignition device, it is characterized in that, this burner is cylindric, its outer surface is housing (1), some coaxial pipes are fixed on the front portion of housing (1), by the front portion of housing (1) from interior centre wind air channel (13), swirl secondary air air channel (5), coal wind air channel (3) and the axial flow wind air channel (2) of being separated into successively outward; The front end in centre wind air channel (13) is bluff body (14) fixedly, has an axial flow wind air compartment (4) in axial flow wind air channel (2); Tiny-oil ignition pulverized coal channel (15) inserts the central authorities in centre wind air channel (13), and the air channel around tiny-oil ignition pulverized coal channel (15) in centre wind air channel (13) is air film cooling air channel (6); The rear portion of housing (1) has Secondary Air air channel (7) and a wind air channel (9); Secondary Air air channel (7) communicates with axial flow wind air channel (2), swirl secondary air air channel (5) and air film cooling air channel (6) respectively; A wind air channel (9) communicates with coal wind air channel (3) and tiny-oil ignition pulverized coal channel (15) respectively, the first baffle plate (8) is fixed with the place of communicating, coal wind air channel (3) in a wind air channel (9), and a wind air channel (9) and tiny-oil ignition pulverized coal channel (15) place of communicating be second baffle (10) fixedly; Tiny-oil ignition device (11) is fixed in tiny-oil ignition pulverized coal channel (15), and the oil gun mouth of the tiny-oil ignition oil gun (12) of tiny-oil ignition device (11) is towards the burner front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206727957U CN202955690U (en) | 2012-12-10 | 2012-12-10 | Rotary cement kiln pulverized coal burner with oxygen enrichment tiny-oil ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206727957U CN202955690U (en) | 2012-12-10 | 2012-12-10 | Rotary cement kiln pulverized coal burner with oxygen enrichment tiny-oil ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955690U true CN202955690U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206727957U Expired - Lifetime CN202955690U (en) | 2012-12-10 | 2012-12-10 | Rotary cement kiln pulverized coal burner with oxygen enrichment tiny-oil ignition device |
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|---|---|
| CN (1) | CN202955690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075729A (en) * | 2012-12-10 | 2013-05-01 | 傅宁芳 | Cement rotary kiln coal powder burner with oxygen-enriched micro-oil ignition device |
-
2012
- 2012-12-10 CN CN2012206727957U patent/CN202955690U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075729A (en) * | 2012-12-10 | 2013-05-01 | 傅宁芳 | Cement rotary kiln coal powder burner with oxygen-enriched micro-oil ignition device |
| CN103075729B (en) * | 2012-12-10 | 2015-06-17 | 杭州玺清环保科技有限公司 | Cement rotary kiln coal powder burner with oxygen-enriched micro-oil ignition device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU SEEKING ENVIRONMENTAL PROTECTION TECHONLO Free format text: FORMER OWNER: FU NINGFANG Effective date: 20140129 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140129 Address after: 310012, room 1506, C, Zijin Plaza, 701 Pier Road, Hangzhou, Zhejiang, Xihu District Patentee after: Hangzhou Seeking Environmental Protection Techonlogy Co., Ltd. Address before: Hangzhou City, Zhejiang province 310012 Xihu District osmanthus 10 apartment block B Room 101 Patentee before: Fu Ningfang |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130529 Effective date of abandoning: 20150617 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130529 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |