CN210346273U - Combustion-supporting air inlet structure of rotary kiln - Google Patents
Combustion-supporting air inlet structure of rotary kiln Download PDFInfo
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- CN210346273U CN210346273U CN201920824248.8U CN201920824248U CN210346273U CN 210346273 U CN210346273 U CN 210346273U CN 201920824248 U CN201920824248 U CN 201920824248U CN 210346273 U CN210346273 U CN 210346273U
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- rotary kiln
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- air inlet
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Abstract
The utility model provides a rotary kiln combustion-supporting air inlet structure, which can make the combustion-supporting air fully contact with the burning materials, so that the burning is more sufficient; and the probability that the solid waste falls into the gap between the kiln head and the kiln head cover can be reduced. It includes tuyere, the rotary kiln body, the kiln hood set up in the air inlet end of the rotary kiln body, its characterized in that: the air nozzles are uniformly arranged in the rotary kiln body close to the kiln head cover along the circumferential direction, and the air nozzles are tangent to the inner wall of the rotary kiln body along the extension line of the wind direction of the air nozzles.
Description
Technical Field
The utility model relates to a combustion apparatus technical field specifically is rotary kiln combustion-supporting wind air inlet structure.
Background
In the prior combustion-supporting air inlet device for the rotary kiln burning of industrial solid waste, a common simple single-pipe air inlet mode is adopted, and as shown in figure 1, an air inlet pipe 2 is arranged on one side of a rotary kiln body 1. However, the existing simple single-pipe air inlet mode has the inevitable defects:
1. in the single-pipe air inlet rotary kiln, the wind direction of combustion-supporting air is single, so that the combustion of the material to be incinerated is insufficient;
2. the single-pipe air inlet can blow solid waste into a gap between the head end of the rotary kiln and a kiln head cover, so that the problems of combustion, coking and the like are caused.
Disclosure of Invention
In order to solve the problems that the burning in the rotary kiln is insufficient due to a single-pipe air inlet mode in the prior art, and the solid waste is easy to blow into a gap between a kiln end and a kiln head cover to cause burning coking, the utility model provides a rotary kiln combustion-supporting air inlet structure, which can ensure that the combustion-supporting air is fully contacted with the burning materials, so that the burning is more sufficient; and the probability that the solid waste falls into the gap between the kiln head and the kiln head cover can be reduced.
The structure of the utility model is as follows: the combustion-supporting wind air inlet structure of rotary kiln, it includes tuyere, the rotary kiln body, the kiln hood set up in the air inlet end of the rotary kiln body, its characterized in that:
the air nozzles are uniformly arranged in the rotary kiln body close to the kiln head cover along the circumferential direction, and the air nozzles are tangent to the inner wall of the rotary kiln body along the extension line of the wind direction of the air nozzles.
It is further characterized in that:
the kiln head hood also comprises an annular air box, wherein the annular air box is arranged on the periphery of the kiln head hood and is communicated with the air nozzle;
the rotary kiln body and the horizontal plane form an included angle and are obliquely arranged; the air nozzle is arranged at the upstream position of the rotary kiln body.
The utility model discloses set up the tuyere at the air inlet end of the rotary kiln body, multitube tuyere and tuyere along the extension line of its wind direction with the inner wall of the rotary kiln body is tangent, and the direction of rotation of all tuyeres is the same, so the combustion-supporting wind that gets into by the tuyere gets into the rotary kiln body with whirlwind formula, compares with the wind direction of traditional single tube air inlet, and rotatory wind can more effectual and waste material contact for it is combustion-supporting to overcome traditional single tube air inlet, and the material burns the not abundant problem inadequately. Simultaneously, tuyere and kiln hood cover set up in same one end, treat that to burn solid waste material can keep away from the kiln hood cover under the promotion of the whirlwind of combustion-supporting wind, the effectual probability that reduces solid waste material and fall into the space between kiln hood and the kiln hood cover. Meanwhile, the rotary kiln body and the horizontal plane form an included angle and are obliquely arranged, and the air nozzle is arranged at the upstream position of the rotary kiln body, so that the probability that solid waste falls into a gap between the kiln head and the kiln head cover is further reduced.
Drawings
FIG. 1 is a schematic view of a single tube rotary kiln of the prior art;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic sectional view along the line A-A.
Detailed Description
As shown in fig. 1-3, the combustion-supporting air intake structure of the rotary kiln of the present invention comprises a rotary kiln body 1, a kiln head cover 3 disposed at the air intake end of the rotary kiln body 1, air nozzles 2 uniformly disposed on the inner wall of the air intake end of the rotary kiln body 1 along the circumferential direction, and the air direction of the air nozzles 1 tangent to the inner wall 6 of the rotary kiln body 1; the annular air box 4 is arranged on the periphery of the kiln head cover 3, and the annular air box 4 is communicated with the air nozzle 2. The rotary kiln body 1 is arranged on the base 5, the rotary kiln body 1 has an inclined angle with the horizontal plane, and the air nozzle 2 is arranged at the upstream position of the rotary kiln body 1.
The air entering from the annular air box 4 enters the inner cavity of the rotary kiln body 1 through the air nozzle 2 communicated with the annular air box 4, and compared with the traditional single-tube air inlet mode, the air inlet is more uniform; because the wind direction of the tuyere 1 is tangent to the inner wall of the rotary kiln body 1, the wind entering the inner cavity of the rotary kiln body 1 rotates along the direction of the kiln body, and the combustion-supporting wind enters the inner cavity of the kiln body in a cyclone manner, fully contacts with the industrial solid waste for a long time, so that the combustion is more sufficient; meanwhile, an upward air flow is formed at the bottom of the inner cavity of the rotary kiln body 1, materials are difficult to accumulate at the lower part, and the probability of insufficient combustion caused by accumulation of the materials is reduced; the air nozzles 2 and the kiln head cover 3 are arranged on the same end face, the rotary combustion-supporting air is used for exhausting air from the gaps around the kiln head cover 3, the solid waste with combustion is far away from the kiln head cover 3 under the pushing of the combustion-supporting air, and the possibility that the solid waste is transferred into the gaps of the kiln head cover 3 is reduced; meanwhile, the rotary kiln body 1 has an inclination angle with the horizontal plane, the air nozzle 2 is arranged at the upstream position of the rotary kiln body 1, combustion-supporting air is blown to the downstream position from the upstream position of the rotary kiln body 1 in a rotating manner, industrial solid waste in the rotary kiln is pushed by the rotating combustion-supporting air to be far away from the direction of the kiln head cover, and the probability that the solid waste falls into a gap between the head end of the rotary kiln and the kiln head cover is further greatly reduced.
Claims (3)
1. The combustion-supporting wind air inlet structure of rotary kiln, it includes tuyere, the rotary kiln body, the kiln hood set up in the air inlet end of the rotary kiln body, its characterized in that: the air nozzles are uniformly arranged in the rotary kiln body close to the kiln head cover along the circumferential direction, and the air nozzles are tangent to the inner wall of the rotary kiln body along the extension line of the wind direction of the air nozzles.
2. The rotary kiln combustion-supporting air inlet structure as claimed in claim 1, wherein: the kiln head hood further comprises an annular air box, wherein the annular air box is arranged on the periphery of the kiln head hood, and the annular air box is communicated with the air nozzles.
3. The rotary kiln combustion-supporting air inlet structure as claimed in claim 1, wherein: the rotary kiln body and the horizontal plane form an included angle and are obliquely arranged, and the air nozzle is arranged at the upstream position of the rotary kiln body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824248.8U CN210346273U (en) | 2019-06-03 | 2019-06-03 | Combustion-supporting air inlet structure of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824248.8U CN210346273U (en) | 2019-06-03 | 2019-06-03 | Combustion-supporting air inlet structure of rotary kiln |
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| Publication Number | Publication Date |
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| CN210346273U true CN210346273U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920824248.8U Active CN210346273U (en) | 2019-06-03 | 2019-06-03 | Combustion-supporting air inlet structure of rotary kiln |
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| CN (1) | CN210346273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696687A (en) * | 2020-12-27 | 2021-04-23 | 上海域德环保工程有限公司 | Rotary kiln with middle air intake device |
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2019
- 2019-06-03 CN CN201920824248.8U patent/CN210346273U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696687A (en) * | 2020-12-27 | 2021-04-23 | 上海域德环保工程有限公司 | Rotary kiln with middle air intake device |
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| CP02 | Change in the address of a patent holder |
Address after: 214000 no.2020 Lihu Avenue, Binhu District, Wuxi City, Jiangsu Province Patentee after: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 214128, Wuxi, Jiangsu province Binhu District Taihu Street double new economic Park Patentee before: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |