CN2113406U - Double passage burner for combustion of coal powder - Google Patents
Double passage burner for combustion of coal powder Download PDFInfo
- Publication number
- CN2113406U CN2113406U CN 92201825 CN92201825U CN2113406U CN 2113406 U CN2113406 U CN 2113406U CN 92201825 CN92201825 CN 92201825 CN 92201825 U CN92201825 U CN 92201825U CN 2113406 U CN2113406 U CN 2113406U
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- coal
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- collapsible tube
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Abstract
The utility model discloses a double passage burner for combustion of coal powder with a flame adjuster of cement rotary kilns, comprising an outer passage, an inner passage, a clean wind collapsible tube, a collapsible tube nozzle, a coal wind collapsible tube, a coal wind pipe nozzle, a circular truncated cone-shaped regulator, etc. The utility model has the advantages that the flame can adjust; the black fire head is short; the combustion is complete; the burning capacity is strong; the utility model can burn faulty coal.
Description
The utility model relates to a kind of Double Pass Pulverized Coal Burners of cement rotary kiln, particularly a kind of Double Pass Pulverized Coal Burners of band flame regulator of cement rotary kiln.
At present, domestic and international disclosed cement rotary kiln coal burner has single channel coal burner, Double Pass Pulverized Coal Burners and triple channel coal burner.(document: (1) CN87214228,0) flame profile is difficult for adjusting the single channel coal burner, and flame is short, the easy burn-out pipe is chewed, thereby do not satisfied the requirement of cement rotary kiln high yield and low cost; Triple channel coal burner (document: (2) " three air channel coal powder injection pipes " evaluation meeting material 1-7, Tianjin cement industry designing institute, in March, 1985) though performance is better than the single channel coal burner, because the complex structure of this coal burner own, need special steel material, so cost an arm and a leg, processing difficulties is difficult to guarantee three interchannel precision and concentricity, be easy to distortion when at high temperature using, so flow field and combustion conditions are destroyed.In order to address the above problem, Tsing-Hua University has proposed a kind of cement rotary kiln band flameholder binary channels spiral coal powder burner (document: (3) CN87214616U) on October 19th, 1987, though it is simple in structure that this burner has, be easy to make, the characteristics that the length of flame is adjustable, but, still exist flame to regulate the shortcoming of inconvenience.
The purpose of this utility model is intended to overcome the shortcoming of prior art, has proposed a kind of Double Pass Pulverized Coal Burners with flame regulator, and it is strong to have adjustable, a black duration and degree of heating weak point of flame, sufficient combustion, burning capacity, characteristics that can burning low grade coal.
The utility model comprises the internal channel of an outer tunnel and outer tunnel phase configuration, one end of outer tunnel is connected with clean wind collapsible tube, the other end of clean wind collapsible tube is connected with clean wind pipe and chews, internal channel correspondingly is connected with coal wind collapsible tube, the other end of coal wind collapsible tube is connected with the coal airduct and chews, the other end that the coal airduct is chewed disposes a truncated cone-shaped adjuster, and the truncated cone-shaped adjuster matches with a retractor device that the truncated cone-shaped adjuster is moved forward and backward by a pull bar.
The angle of inclination of clean wind collapsible tube and coal wind collapsible tube can equate also can not wait.
Said retractor device is made up of rack-gear type screw thread (leading screw).
Fig. 1 is a structure principle chart of the present utility model.
Fig. 2 is an A-A view of the present utility model.
Fig. 3 is the structure principle chart of retractor device of the present utility model.
Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are done detailed explanation.
With reference to Fig. 1, the utility model comprises an outer tunnel (1), and outer tunnel (1) is by supporting (11) configuration one internal channel (2); One end of outer tunnel (1) can communicate with clean wind regime, and the other end is connected with clean wind collapsible tube (3), and the other end of clean wind collapsible tube (3) is connected with clean wind pipe and chews (5); One end of internal channel (2) can communicate with the coal wind regime, and the other end is connected with coal wind collapsible tube (4) accordingly, and the other end of coal wind collapsible tube (4) is connected with the coal airduct and chews (6); The other end that the coal airduct is chewed (6) is expanding, is beneficial to and truncated cone-shaped adjuster (a 7) phase configuration, and truncated cone-shaped adjuster (7) is by a pull bar (8) and interior retractor device (10) phase configuration of internal channel (2); Pull bar (8) can be supported in the internal channel (2) by sliding support (9).
With reference to Fig. 2,3, retractor device (10) comprises that one is consolidated in the tooth bar (13) on the pull bar (8), the gear (14) that is meshed with tooth bar (13), and gear (14) is disposed on outer tunnel (1), the internal channel (2) by gear shaft (16).The outer end of gear shaft (16) disposes an adjusting handle (15).
When coal wind is chewed (6) ejection by internal channel (2), coal wind collapsible tube (4) and coal airduct, chew at the coal airduct under the effect of the expansion (12) of (6) and adjuster (7), fluid is outwards dispersed, and form the recirculating zone at the rear of adjuster (7), inhale and rolled up high temperature secondary wind, firing coal-dust, make its burning, solved the anoxic zone, center, black duration and degree of heating is shortened.Moving forward and backward of the size of coal wind or adjuster all can make flame profile generation thickness change.
Clean wind is chewed (5) ejection by clean wind pipe, and it mainly acts on is to hold together fluid (or flame) to adjust its form.When clean wind hour, the flame that the distinguished and admirable body of coal is outwards dispersed, formed is thicker; Otherwise fluid is held together, and flame is thinner.Simultaneously, coal wind is outwards dispersed after adjuster (7) effect, the clean positive front axle of wind direction is to ejection, and two strands of wind is owing to have difference on the direction and the difference on the momentum, after the interaction, increase the backflow effect at adjuster (7) rear, helped being involved in more high temperature secondary wind.Like this, by adjusting the shape that clean air quantity and coal air quantity can change flame.
Because coal airduct and clean wind pipe relative position are constant, internal channel and outer tunnel can with the blower fan rigid attachment, also can utilize flexible pipe to connect.
Claims (3)
1, Double Pass Pulverized Coal Burners, the internal channel that comprises an outer tunnel and outer tunnel phase configuration, one end of outer tunnel is connected with clean wind collapsible tube, feature of the present utility model is, the other end of clean wind collapsible tube is connected with clean wind pipe and chews, internal channel correspondingly is connected with coal wind collapsible tube, the other end of coal wind collapsible tube is connected with the coal airduct and chews, the other end that the coal airduct is chewed disposes a truncated cone-shaped adjuster, and the truncated cone-shaped adjuster matches with a retractor device that the truncated cone-shaped adjuster is moved forward and backward by a pull bar.
2, Double Pass Pulverized Coal Burners according to claim 1 is characterized in that said retractor device comprises that one is consolidated in the tooth bar on the pull bar, the gear that is meshed with tooth bar.
3, Double Pass Pulverized Coal Burners according to claim 1 and 2 is characterized in that, the not end that said coal airduct is chewed is expanding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92201825 CN2113406U (en) | 1992-01-29 | 1992-01-29 | Double passage burner for combustion of coal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92201825 CN2113406U (en) | 1992-01-29 | 1992-01-29 | Double passage burner for combustion of coal powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2113406U true CN2113406U (en) | 1992-08-19 |
Family
ID=4948793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92201825 Granted CN2113406U (en) | 1992-01-29 | 1992-01-29 | Double passage burner for combustion of coal powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2113406U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012059038A1 (en) * | 2010-11-01 | 2012-05-10 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and pulverized coal fired boiler |
| CN102454983A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Pulverized coal concentrator, pulverized coal burner and pulverized coal boiler |
| CN102454987A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler with the same |
| CN103953924A (en) * | 2014-04-22 | 2014-07-30 | 东方电气集团东方锅炉股份有限公司 | Burner used for boiler |
| CN107475533A (en) * | 2017-07-07 | 2017-12-15 | 南通大学 | Aluminium ash fries grey machine |
-
1992
- 1992-01-29 CN CN 92201825 patent/CN2113406U/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012059038A1 (en) * | 2010-11-01 | 2012-05-10 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and pulverized coal fired boiler |
| CN102454983A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Pulverized coal concentrator, pulverized coal burner and pulverized coal boiler |
| CN102454987A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler with the same |
| CN102454987B (en) * | 2010-11-01 | 2014-12-31 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler with the same |
| CN103953924A (en) * | 2014-04-22 | 2014-07-30 | 东方电气集团东方锅炉股份有限公司 | Burner used for boiler |
| CN103953924B (en) * | 2014-04-22 | 2017-01-04 | 东方电气集团东方锅炉股份有限公司 | Combustor for boiler |
| CN107475533A (en) * | 2017-07-07 | 2017-12-15 | 南通大学 | Aluminium ash fries grey machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |