CN203784940U - Multi-air-duct pulverized coal burner - Google Patents
Multi-air-duct pulverized coal burner Download PDFInfo
- Publication number
- CN203784940U CN203784940U CN201320596708.9U CN201320596708U CN203784940U CN 203784940 U CN203784940 U CN 203784940U CN 201320596708 U CN201320596708 U CN 201320596708U CN 203784940 U CN203784940 U CN 203784940U
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- CN
- China
- Prior art keywords
- air channel
- wind
- flow wind
- pulverized coal
- duct
- 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
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Abstract
The utility model discloses a multi-air-duct pulverized coal burner which is provided with a furnace body formed by a fire-resistant pouring layer. The furnace body is provided with an axial-flow air channel, a coal air channel, a swirling flow air channel, a center air channel and a center pipe from outside to inside in sequence, wherein an ignition system is located in the center pipe, the end of the ignition system stretches out of the center pipe, the end of the outer wall of the axial-flow air channel is provided with a flame gathering cover, and the flame gathering cover is connected to the outer wall of the axial-flow air channel in a threaded mode. Compared with the prior art, the multi-air-duct pulverized coal burner is simple in structure and low in cost, can meet production requirements for flame shapes and heating power strength, and can be matched with a fan type coal grinding and coal conveying machine for use.
Description
Technical field
The utility model belongs to coal burner technical field, is specifically related to a kind of rotary kiln multi-air channel pulverized coal burner, and coal dust and combustion air are sent in rotary kiln and burnt, and the flame profile and the heat force intensity that meet production requirement can be provided.
Background technology
Rotary kiln is the single channel coal powder burner from the seventies with coal burner, develops into two air channels, three air channels, even five-duct coal burner of four air channels, and when performance progressively promotes, the supporting of equipment promotes thereupon, and the price of burner is also surging gradually.
For large-scale energy resource consumption enterprise, likely counter investment is not to seem too outstanding, but for the vast rotary kiln user outside cement burning, most of user does not need so harsh technological requirement, also being unwilling, it is excessive aspect equipment investment, to consume, directly cause such efficient multiple duct coal powder burner, in the marketing outside cement industry, be beset with resistance.
In the roasting of some iron ores, many industries such as calcining, the dry and oven dry of material of lime, perfect along with processing technology, people are more and more urgent to the demand of economical and practical type high-efficiency pulverized coal burning kind equipment, a kind of simple in structure, economical and practical multi-air channel pulverized coal burner that can meet corresponding operation needs of market demand.
Utility model content
The purpose of this utility model is for above-mentioned deficiency, provides a kind of simple in structure, and cost is low, meets flame profile and the heat force intensity of production requirement, can with the matching used multi-air channel pulverized coal burner of fan-type coal-grinding coal conveyor.
The technical solution adopted in the utility model is: this multi-air channel pulverized coal burner, there is the body of heater being formed by fire-resistant LIFT, it is characterized in that: described body of heater ecto-entad is provided with axial flow wind passage, coal wind duct, eddy flow wind passage, center wind duct and central tube successively; Ignition system is positioned at central tube, and central tube is stretched out in its end; The outer wall end of described axial flow wind passage is provided with flame cover, holds together the employing of flame cover and is threaded on axial flow wind channel outer wall.
Adopt the beneficial effect of technique scheme: this multi-air channel pulverized coal burner can be directly and fan-type coal-grinding coal powder injection machine be used in conjunction with, simplified the overall structure of multiple duct pulverized coal combustion system, saved cost.The coal wind duct of multi-air channel pulverized coal burner is located between axial flow wind passage and eddy flow wind passage, can make the coal dust in coal wind fully mix with a wind Secondary Air under the acting in conjunction of axial flow wind and eddy flow wind, burns more abundant, thereby has improved heat force intensity in kiln.What on axial flow wind channel outer wall pipe, arrange holds together flame cover and can play steady flame effect, makes flame profile stable, can effectively protect cylindrical shell and stove brick.Compared with prior art, simple in structure, cost is low, meets flame profile and the heat force intensity of production requirement, can support the use with fan-type coal-grinding coal conveyor.
Brief description of the drawings
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Multi-air channel pulverized coal burner as described in Figure 1, has the body of heater 1 being made up of fire-resistant LIFT, and described body of heater ecto-entad is provided with axial flow wind passage 2, coal wind duct 3, eddy flow wind passage 4, center wind duct 5 and central tube 6 successively; Ignition system is positioned at central tube 6, and central tube 6 is stretched out in the igniting termination of ignition system; The outer wall end of described axial flow wind passage 2 is provided with flame cover 7, holds together 7 employings of flame cover and is threaded on axial flow wind passage 2 outer walls.Described axial flow wind passage 2, coal wind duct 3, eddy flow wind passage 4 and center wind duct 5 are to be made up of the steel pipe suit of different tube diameters, and the gap between adjacent two steel pipes forms corresponding vent passages.In described axial flow wind passage 2 eddy flow wind passages 4 and center wind duct 5, be provided with the adjusting device of adjustable axial flow wind, eddy flow wind and centre wind wind speed and air quantity, by being used in conjunction with of adjusting device, regulate the flame outward appearance needing.
Claims (2)
1. a multi-air channel pulverized coal burner, has the body of heater being made up of fire-resistant LIFT, it is characterized in that: described body of heater ecto-entad is provided with axial flow wind passage, coal wind duct, eddy flow wind passage, center wind duct and central tube successively; Ignition system is positioned at central tube, and central tube is stretched out in its end; The outer wall end of described axial flow wind passage is provided with flame cover, holds together the employing of flame cover and is threaded on axial flow wind channel outer wall.
2. multi-air channel pulverized coal burner as claimed in claim 1, is characterized in that: the adjusting device that is provided with adjustable axial flow wind, eddy flow wind and centre wind wind speed and air quantity in described axial flow wind channel rotational-flow wind passage and center wind duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320596708.9U CN203784940U (en) | 2013-09-26 | 2013-09-26 | Multi-air-duct pulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320596708.9U CN203784940U (en) | 2013-09-26 | 2013-09-26 | Multi-air-duct pulverized coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784940U true CN203784940U (en) | 2014-08-20 |
Family
ID=51321120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320596708.9U Expired - Lifetime CN203784940U (en) | 2013-09-26 | 2013-09-26 | Multi-air-duct pulverized coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508942A (en) * | 2022-02-28 | 2022-05-17 | 中铜东南铜业有限公司 | Beam flow type concentrate nozzle and working method thereof |
-
2013
- 2013-09-26 CN CN201320596708.9U patent/CN203784940U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508942A (en) * | 2022-02-28 | 2022-05-17 | 中铜东南铜业有限公司 | Beam flow type concentrate nozzle and working method thereof |
| CN114508942B (en) * | 2022-02-28 | 2024-09-24 | 中铜东南铜业有限公司 | Beam type concentrate spray nozzle and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210409 Address after: 473000 no.1168 Wolong Road, Wuhou street, Wolong District, Nanyang City, Henan Province Patentee after: Henan Yalong Intelligent Equipment Co.,Ltd. Address before: 473000 No. 1168, Wolong Road, Nanyang, Henan Patentee before: NANYANG YALONG ROAD CONSTRUCTION MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |
|
| CX01 | Expiry of patent term |