CN203431856U - A detachable nozzle of a five-air-channel pulverized coal burner - Google Patents
A detachable nozzle of a five-air-channel pulverized coal burner Download PDFInfo
- Publication number
- CN203431856U CN203431856U CN201320334188.4U CN201320334188U CN203431856U CN 203431856 U CN203431856 U CN 203431856U CN 201320334188 U CN201320334188 U CN 201320334188U CN 203431856 U CN203431856 U CN 203431856U
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- Prior art keywords
- coal
- airduct
- wind
- nozzle
- channel
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- Expired - Fee Related
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Abstract
The utility model relates to a pulverized coal burner for a kiln in the cement industry. The utility model provides a detachable nozzle of a five-air-channel pulverized coal burner and solves the problems that the head of a conventional pulverized coal burner cannot be replaced and the maintenance cost of the burner is high. The detachable nozzle comprises an outer axial air channel, a coal air channel, an inner axial air channel, an inner whirlwind channel and a central air channel; the outer axial air channel is formed by connecting a coal air pipe and an outer axial air pipe through a fixing ring; the coal air channel is formed by connecting an inner axial air pipe with the coal air pipe through a fixing ring; the inner axial air channel is formed by connecting an inner whirlwind pipe and the inner axial air pipe through a fixing ring; the inner whirlwind channel is formed by connecting a central air pipe and the inner whirlwind pipe through a fixing ring; and the central air channel is formed by the central air pipe. The detachable nozzle of the five-air-channel pulverized coal burner is long in service life and the replacement of the head of the burner is more flexible and convenient.
Description
Technical field
The utility model relates to the coal burner that a kind of cement industry stove is used, and especially relates to a kind of removable nozzle of five-duct coal burner.
Background technology
In traditional cement production process process, mostly use common single channel coal powder burner.The black duration and degree of heating of this burner is long, and efficiency of combustion is low, and flame profile cannot regulate, and is difficult to meet cement furnace calcination of cement clinker good quality and high output, the requirement of low energy consumption.Early eighties, China has introduced Three-channel Coal Burner from foreign country, and has in succession carried out secondary development, is applied in the calcination process of cement furnace grog, has substantially overcome the defect that single channel coal powder burner exists.But this burner structure is complicated, expensive, be difficult to be applicable to completely the changeable fuel source of China.
The domestic a lot of units of the nineties copy and develop polytype triple channel, four-way coal burner.But it is short that these coal burner ubiquities service life, burner head is changed difficult problem.
Utility model content
The object of the utility model is: for the deficiencies in the prior art, propose a kind of removable nozzle of five-duct coal burner, overcome existing coal burner head non-exchange, the shortcoming that burner maintenance cost is high.
The technical solution of the utility model is:
A kind of removable nozzle of five-duct coal burner, comprise outer shaft wind passage, coal wind duct, interior axle wind passage, internal cyclone passage, center wind duct, it is characterized in that: described outer shaft wind passage is connected and composed by retainer ring and outer shaft airduct by coal airduct, outer shaft air pipe head size portion is provided with flame cover, and coal airduct one end is provided with outer shaft wind nozzle; Described coal wind is logical to be connected and composed by retainer ring and coal airduct by interior axle airduct, and interior axle airduct one end is provided with coal wind nozzle; Described interior axle wind passage is connected and composed by retainer ring and interior axle airduct by inward turning airduct, and inward turning airduct one end is provided with interior axle wind nozzle; Described internal cyclone passage is connected and composed by retainer ring and inward turning airduct by central air hose, and central air hose one end is provided with internal cyclone nozzle, and centre wind nozzle is fixedly connected with the inner surface of central air hose; Described center wind duct consists of central air hose.
Described internal cyclone nozzle upper surface is provided with cyclone.
Useful good effect of the present utility model:
The removable nozzle of the utility model five-duct coal burner is to consist of five coaxially arranged heat resisting pipes and corresponding burner outlet nozzle thereof, and this nozzle arrangements is reasonable, function admirable, long service life, and burner head is changed flexible.During use, efficiency of combustion is high, and coal dust burnout rate is high, flame temperature is high, and shape is regular, and flame profile and adjustable temperature range are wide, can give full play to the superiority of cement rotary kiln production technology, can reduce in a large number the primary air flow into kiln, reduce fuel consumption, reduce environmental pollution, particularly ature of coal is changed the strong adaptability of fluctuation, it can not only burn high-quality bituminous coal, and can also burn anthracite and flammable industrial, house refuse, therefore can reduce significantly manufacture of cement cost, alleviate transport pressure.
Accompanying drawing explanation
Fig. 1 is structure cutaway view of the present utility model.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the meaning of number in the figure representative is: 1. outer shaft airduct, 2. coal airduct, 3. interior axle airduct, 4. inward turning airduct, 5. central air hose, 6. outer shaft wind passage retainer ring, 7. coal wind duct retainer ring, 8. interior axle wind passage retainer ring, 9. internal cyclone passage retainer ring, 10. hold together flame cover, 11. outer shaft wind nozzles, 12. coal wind nozzles, 13. interior axle wind nozzles, 14. internal cyclone nozzles, 15. centre wind nozzles, 16. cyclones.
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.
Shown in Figure 1: a kind of removable nozzle of five-duct coal burner, comprise outer shaft wind passage, coal wind duct, interior axle wind passage, internal cyclone passage, center wind duct, described outer shaft wind passage is connected and composed by retainer ring 6 and outer shaft airduct 1 by coal airduct 2, outer shaft airduct 1 head head is provided with flame cover 10, and coal airduct 2 one end are provided with outer shaft wind nozzle 11; Described coal wind is logical to be connected and composed by retainer ring 7 and coal airduct 2 by interior axle airduct 3, and interior axle airduct 3 one end are provided with coal wind nozzle 12; Described interior axle wind passage is connected and composed by retainer ring 8 and interior axle airduct 3 by inward turning airduct 4, and inward turning airduct 4 one end are provided with interior axle wind nozzle 13; Described internal cyclone passage is connected and composed by retainer ring 9 and inward turning airduct 4 by central air hose 5, and central air hose 5 one end are provided with internal cyclone nozzle 14, and centre wind nozzle 15 is fixedly connected with the inner surface of central air hose 5; Described center wind duct consists of central air hose 5.Described internal cyclone nozzle 14 upper surfaces are provided with cyclone 16.
Each airduct is to connect by screw thread or buckle with being connected of burner outlet nozzle and cyclone, rather than directly welding, thereby makes the replacing of nozzle convenient.The nozzle area of outer shaft wind channel outlet and internal cyclone channel outlet, can do corresponding adjusting according to the situation of kiln internal combustion and fuel.Internal cyclone passage, the air that interior axle wind passage and outer shaft wind passage pass through is called wind one time, and what coal wind duct passed through is the mixture of coal dust and air, and what center wind duct passed through is the mixture of gasoline and air.The effect of cyclone 16 is to make to produce rotation by its air, and produces recirculating zone, center to stabilize the flame, and another one effect is to break up breeze airflow, the mixing of strengthening coal dust and air.Five-duct coal burner stretches into the nozzle in high-temperature region in stove, while losing efficacy as caused because of factors such as operate miss, wearing and tearing, distortion, as long as change with the nozzle inoperative component that screw thread or buckle connect, just can reuse, and change flexibly and easily, use and maintenance expense is low.
Claims (2)
1. the removable nozzle of a five-duct coal burner, comprise outer shaft wind passage, coal wind duct, interior axle wind passage, internal cyclone passage, center wind duct, it is characterized in that: described outer shaft wind passage is connected and composed by retainer ring and outer shaft airduct by coal airduct, outer shaft air pipe head size portion is provided with flame cover, and coal airduct one end is provided with outer shaft wind nozzle; Described coal wind is logical to be connected and composed by retainer ring and coal airduct by interior axle airduct, and interior axle airduct one end is provided with coal wind nozzle; Described interior axle wind passage is connected and composed by retainer ring and interior axle airduct by inward turning airduct, and inward turning airduct one end is provided with interior axle wind nozzle; Described internal cyclone passage is connected and composed by retainer ring and inward turning airduct by central air hose, and central air hose one end is provided with internal cyclone nozzle, and centre wind nozzle is fixedly connected with the inner surface of central air hose; Described center wind duct consists of central air hose.
2. the removable nozzle of five-duct coal burner according to claim 1, is characterized in that: described internal cyclone nozzle upper surface is provided with cyclone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320334188.4U CN203431856U (en) | 2013-06-11 | 2013-06-11 | A detachable nozzle of a five-air-channel pulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320334188.4U CN203431856U (en) | 2013-06-11 | 2013-06-11 | A detachable nozzle of a five-air-channel pulverized coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431856U true CN203431856U (en) | 2014-02-12 |
Family
ID=50060891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320334188.4U Expired - Fee Related CN203431856U (en) | 2013-06-11 | 2013-06-11 | A detachable nozzle of a five-air-channel pulverized coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435625A (en) * | 2015-12-30 | 2016-03-30 | 天津中材工程研究中心有限公司 | Sludge-dispersing equipment used for cement kiln for denitration |
| CN105738139A (en) * | 2016-02-06 | 2016-07-06 | 中国科学院工程热物理研究所 | Combustor and combustion testing method |
-
2013
- 2013-06-11 CN CN201320334188.4U patent/CN203431856U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435625A (en) * | 2015-12-30 | 2016-03-30 | 天津中材工程研究中心有限公司 | Sludge-dispersing equipment used for cement kiln for denitration |
| CN105738139A (en) * | 2016-02-06 | 2016-07-06 | 中国科学院工程热物理研究所 | Combustor and combustion testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 |