CN203534149U - Kiln head of rotary kiln for producing reduced iron powder by using aluminium oxide red mud - Google Patents
Kiln head of rotary kiln for producing reduced iron powder by using aluminium oxide red mud Download PDFInfo
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- CN203534149U CN203534149U CN201320754669.0U CN201320754669U CN203534149U CN 203534149 U CN203534149 U CN 203534149U CN 201320754669 U CN201320754669 U CN 201320754669U CN 203534149 U CN203534149 U CN 203534149U
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- kiln
- kiln head
- head
- back side
- reset springs
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Abstract
The utility model relates to a kiln head of a rotary kiln for producing reduced iron powder by using aluminium oxide red mud. The kiln head is integrally shaped like a round disk, wherein a U-shaped groove lined with fire-resistant rock wool is arranged on the periphery of the front side of the kiln head; the U-shaped groove is inserted and connected to the front end of the kiln head; a plurality of reset springs are fixed on the back side of the kiln head; by virtue of the reset springs, the hermetic combination of the kiln head and a kiln body can be guaranteed and the kiln head can be moved along with the front end of the kiln body during heat-expansion and cold-contraction of a furnace body; a discharge hole is formed in the bottom of the kiln head. When the kiln head disclosed by the utility model is operated, the U-shaped groove on the front side of the kiln head is inserted and connected to the front end of the kiln head; the hermetic combination of the kiln head and a kiln body is facilitated by virtue of the reset springs on the back side of the kiln head; when the furnace body is subjected to heat expansion, the kiln head is pushed by the front end of the kiln body to move forwards, the reset springs on the back side of the kiln head are compressed; conversely, when the furnace body is subjected to cold contraction, the reset springs on the back side of the kiln head are stretched and the kiln head is pushed to get close to the kiln body; therefore, the hermetic combination of the kiln head and the kiln body is guaranteed. The kiln head disclosed by the utility model is scientific in design; by virtue of the movable kiln head, the hermetic combination of the kiln head and the kiln body is guaranteed.
Description
Technical field
The utility model relates to alumina producing red mud comprehensive treatment equipment technical field, and specifically alumina laterite processing rotary kiln moves kiln hood.
Background technology
The processing of alumina producing waste material red mud is the biggest problem running in Aluminum Electrolysis Production industry, because it is huge to produce red mud amount in producing, long-term accumulation need take a large amount of soils, soil and underground water is produced to severe contamination simultaneously.At present, it is domestic that to red mud, processing does not also have good method, prior art utilizes red mud to produce clinker technology, majority is full wet production, this production method is due to the high humidity of red mud, produce the required thermal energy consumption of wet mud large, in production process, hardening also easily appears in red mud, and while red mud utilization rate is the large problem of lower, energy resource consumption also.A kind of method that rotary kiln is dried, calcines, goes back original production brown iron oxide and clinker red mud is invented by our company, it is one of state-of-the-art processing method of Present Domestic alumina producing red mud, red mud utilization rate is high, production added value is also high, but the rotation due to kiln body, so kiln hood should dock with kiln body is airtight, can with kiln body front end, move with body of heater rising-heat contracting-cold again, need quite high specification requirement.
Summary of the invention
The purpose of this utility model is to provide a kind of alumina laterite processing rotary kiln to move kiln hood.
The technical solution of the utility model is: alumina laterite reduced iron powder rotary kiln kiln hood, integral body is disc, kiln hood front periphery is provided with one week " U " shape groove, in " U " shape groove, be lined with refractory rocks cotton, together with " U " shape groove is pegged graft with kiln body front end, many return springs are fixed at the kiln hood back side, and return spring can guarantee the airtight combination of kiln hood and kiln body, and can when body of heater rising-heat contracting-cold, with kiln body front end, move by kiln hood, the bottom of kiln hood is provided with discharging opening.
During the utility model work, together with positive " U " shape groove of kiln hood is pegged graft with kiln body front end, the return spring boosting kiln hood at the kiln hood back side and the airtight combination of kiln body, when body of heater heat rises, kiln body front end promotes kiln hood and moves forward, the return spring at the kiln hood back side is compressed, otherwise when body of heater shrinkage, the return spring at the kiln hood back side stretches, and promotes kiln hood close to kiln body, guarantee the airtight combination of kiln hood and kiln body, the red mud processing is discharged from the discharging opening of kiln hood.
The utility model design science, mobility kiln hood is guaranteed the airtight combination of kiln hood and kiln body.
Accompanying drawing explanation
Accompanying drawing is the utility model structural representation.
Wherein: 1, " U " shape groove 2, fire-resistant rock wool 3 return springs 4, discharging opening
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Alumina laterite reduced iron powder rotary kiln kiln hood, as shown in the figure, integral body is disc, one week " U " shape groove 1 that kiln hood front periphery is established, in " U " shape groove 1, be lined with refractory rocks cotton 2, together with " U " shape groove 1 is pegged graft with kiln body front end, many return springs 3 are fixed at the kiln hood back side, return spring 3 can guarantee the airtight combination of kiln hood and kiln body, and the bottom of kiln hood is provided with discharging opening 4.During work, together with positive " U " shape groove 1 of kiln hood is pegged graft with kiln body front end, the return spring 3 boosting kiln hoods at the kiln hood back side and the airtight combination of kiln body, when body of heater heat rises, kiln body front end promotes kiln hood and moves forward, the return spring 3 at the kiln hood back side is compressed, otherwise when body of heater shrinkage, the return spring 3 at the kiln hood back side stretches, and promotes kiln hood close to kiln body, guarantee the airtight combination of kiln hood and kiln body, the red mud processing is discharged from the discharging opening 4 of kiln hood.
Claims (1)
1. alumina laterite reduced iron powder rotary kiln kiln hood, it is characterized in that, integral body is disc, one week " U " shape groove (1) that kiln hood front periphery is established, in " U " shape groove (1), be lined with refractory rocks cotton (2), together with " U " shape groove (1) is pegged graft with kiln body front end, many return springs (3) are fixed at the kiln hood back side, and the bottom of kiln hood is provided with discharging opening (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754669.0U CN203534149U (en) | 2013-11-19 | 2013-11-19 | Kiln head of rotary kiln for producing reduced iron powder by using aluminium oxide red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754669.0U CN203534149U (en) | 2013-11-19 | 2013-11-19 | Kiln head of rotary kiln for producing reduced iron powder by using aluminium oxide red mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203534149U true CN203534149U (en) | 2014-04-09 |
Family
ID=50420347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320754669.0U Expired - Fee Related CN203534149U (en) | 2013-11-19 | 2013-11-19 | Kiln head of rotary kiln for producing reduced iron powder by using aluminium oxide red mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203534149U (en) |
-
2013
- 2013-11-19 CN CN201320754669.0U patent/CN203534149U/en not_active Expired - Fee Related
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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: 20140409 Termination date: 20211119 |