CN203949170U - A kind of high ash content colm vortex burner - Google Patents
A kind of high ash content colm vortex burner Download PDFInfo
- Publication number
- CN203949170U CN203949170U CN201420102290.6U CN201420102290U CN203949170U CN 203949170 U CN203949170 U CN 203949170U CN 201420102290 U CN201420102290 U CN 201420102290U CN 203949170 U CN203949170 U CN 203949170U
- Authority
- CN
- China
- Prior art keywords
- ash content
- high ash
- flow cone
- colm
- vortex burner
- 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
Links
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 abstract description 16
- 239000003245 coal Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010304 firing Methods 0.000 abstract description 2
- 230000011218 segmentation Effects 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 abstract 1
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
Abstract
A kind of high ash content colm vortex burner.Its feature is that a wind does not rotate, do not concentrate, and effectively alleviates burner body wearing and tearing, has carried out anti-wear and overheavy firing design in structure.For increasing intense steady combusting and alleviating wearing and tearing, to producing the central bluff body refluxing---expand flow cone and carry out particular design, expanding the replaceable alloy wearing ring of flow cone outside suit; Swirl secondary air nozzle, wind nozzle and expand flow cone along airflow direction successively outstanding layout forward, be not only beneficial to and caught fire in advance smooth combustion but also can realize segmentation air feed fractional combustion, reduces NO
xgenerate.This vortex burner, for the strong feature of high ash content low heat value coal abrasiveness inferior, adopts advanced combustion technology and Anti-wear Technology, has good resistance to wearing and combustion stability, is particularly useful for high ash content, low-calorie colm.
Description
Technical field
The utility model belongs to coal combustion equipment, particularly a kind of vortex burner that uses specially high ash content, low heat value colm.
Background technology
Existing vortex burner is broadly divided into two classes by version.One class is to adopt wind of eddy flow (coal dust and air Mixture stream), and one time wind turns and pushes ahead an air channel inward turning, while rotating a general mood stream ejection, entrainments hot flue gas and plays steady fuel efficiency fruit; One class is to adopt wind of direct current to add central bluff body, produces recirculating zone near bluff body, reaches the object of smooth combustion.In the last few years, occur that wind of direct current adds pulverized coal concentrator form flow coal-powder combustor, its steady fuel efficiency fruit is fine, but general resistance is all larger.In the time using the such coal inferior of high ash content, low heat value, because dust burdening is large, there is serious wear in above existing conventional vortex burner, have even 2 ~ 3 months, and the burner inefficacy that is just worn through.Follow wearing and tearing and come be exactly combustion stability decline, burner lost efficacy.The purpose of this utility model is to propose a kind of colm vortex burner that resistance to wears and have good combustion stability, is particularly useful for high ash content, low-calorie colm.
Summary of the invention
The utility model is to solve existing vortex burner to use the problem that high ash content colm is easy to wear, combustion stability is poor, and then proposes a kind of high ash content colm vortex burner.The technical scheme that the utility model is taked is: a kind of high ash content colm vortex burner, forms by expanding flow cone (1), alloy wearing ring (2), a wind nozzle (3), overfire air jet (4), adjustable Secondary Air cyclone (5), a wind outer sleeve (6) and central air hose (7).It is characterized in that: at the keypoint part of wearing and tearing---expand flow cone (1) outside suit alloy wearing ring (2); Catch fire for improving, smooth combustion fall low NOx drainage, adopt fractional combustion air distribution mode, overfire air jet (4), a wind nozzle (3) and expand flow cone (1) along airflow direction successively outstanding layout forward; In the situation that ensureing smooth combustion, for alleviating wearing and tearing, alloy wearing ring (2) is designed to replaceable structure, when maintenance, can change, and outer rim is designed to streamlined, material selection heat-resistance abrasion-resistance alloy; Expand flow cone (1) Windward angle α and choose low-angle, α≤30
., to alleviate wearing and tearing; In-built supporting role β is 40
.。
The beneficial effect that the utility model compared with prior art comprises is: the high ash content colm of the utility model vortex burner is for the strong feature of high ash content coal low heat value abrasiveness inferior, adopt advanced combustion technology and Anti-wear Technology, in structure, carry out anti-wear and overheavy firing design, there is good resistance to wearing and combustion stability, be particularly useful for high ash content, low-calorie colm.
brief description of the drawings:
Fig. 1 is the side sectional view of a kind of high ash content colm vortex burner of the utility model.Fig. 2 is that the A of Fig. 1 is to view.In Fig. 1,1---expand flow cone (central bluff body), 2---alloy wearing ring, 3---a wind nozzle, 4---overfire air jet, 5---adjustable Secondary Air cyclone, 6---a wind outer sleeve, 7---central air hose, wind nozzle of L1---expansion flow cone and a wind nozzle axial distance, L2---and Secondary Air cyclone axial distance.In Fig. 2, α---expand flow cone Windward angle, β---in-built supporting role.
Detailed description of the invention
In conjunction with Fig. 1 and Fig. 2, present embodiment is described, a kind of high ash content colm vortex burner described in present embodiment, forms by expanding flow cone (1), alloy wearing ring (2), a wind nozzle (3), overfire air jet (4), adjustable Secondary Air cyclone (5), a wind outer sleeve (6) and central air hose (7).It is characterized in that: alloy wearing ring (2) is designed to replaceable structure, when maintenance, can change, and outer rim is designed to streamlined, material selection heat-resistance abrasion-resistance alloy; Expand flow cone (1) Windward angle α and choose low-angle, α≤30
., to alleviate wearing and tearing; In-built supporting role β is 40
.; Overfire air jet (4), a wind nozzle (3) and expansion flow cone (1) are given prominence to and are arranged forward successively along airflow direction, the relative distance definite by calculation and test is: expanding flow cone (1) is 50 ~ 80mm with a wind nozzle (3) axial distance L1, and a wind nozzle (3) is 320 ~ 380mm with adjustable Secondary Air cyclone (5) axial distance L2.So not only be beneficial to and caught fire in advance smooth combustion but also can form centre wind, wind, swirl secondary air segmentation air feed fractional combustion air distribution mode, fallen low NOx drainage.
Claims (4)
1. one kind high ash content colm vortex burner, form by expanding flow cone (1), alloy wearing ring (2), a wind nozzle (3), overfire air jet (4), adjustable Secondary Air cyclone (5), a wind outer sleeve (6) and central air hose (7), it is characterized in that: expand flow cone (1) outside suit alloy wearing ring (2); Overfire air jet (4), a wind nozzle (3) and expansion flow cone (1) are given prominence to and are arranged forward successively along airflow direction.
2. the high ash content colm of one according to claim 1 vortex burner, is characterized in that: described alloy wearing ring (2) is designed to replaceable structure, and outer rim is streamlined, in-built supporting role β=40.
3. the high ash content colm of one according to claim 1 vortex burner, is characterized in that: described expansion flow cone (1) Windward angle α≤30.
4. the high ash content colm of one according to claim 1 vortex burner, it is characterized in that: described expansion flow cone (1) is 50 ~ 80mm with a wind nozzle (3) axial distance L1, a wind nozzle (3) is 320 ~ 380mm with adjustable Secondary Air cyclone (5) axial distance L2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420102290.6U CN203949170U (en) | 2014-03-07 | 2014-03-07 | A kind of high ash content colm vortex burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420102290.6U CN203949170U (en) | 2014-03-07 | 2014-03-07 | A kind of high ash content colm vortex burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203949170U true CN203949170U (en) | 2014-11-19 |
Family
ID=51891205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420102290.6U Expired - Lifetime CN203949170U (en) | 2014-03-07 | 2014-03-07 | A kind of high ash content colm vortex burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203949170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832918A (en) * | 2015-05-05 | 2015-08-12 | 集美大学 | Novel cyclone bias pulverized coal burner |
-
2014
- 2014-03-07 CN CN201420102290.6U patent/CN203949170U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832918A (en) * | 2015-05-05 | 2015-08-12 | 集美大学 | Novel cyclone bias pulverized coal burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141119 |