CN201463570U - Rotary kiln inner lining structure - Google Patents
Rotary kiln inner lining structure Download PDFInfo
- Publication number
- CN201463570U CN201463570U CN2008201135792U CN200820113579U CN201463570U CN 201463570 U CN201463570 U CN 201463570U CN 2008201135792 U CN2008201135792 U CN 2008201135792U CN 200820113579 U CN200820113579 U CN 200820113579U CN 201463570 U CN201463570 U CN 201463570U
- Authority
- CN
- China
- Prior art keywords
- rotary kiln
- inner lining
- liner
- kiln
- powder
- 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 - Fee Related
Links
- 238000001354 calcination Methods 0.000 abstract description 12
- 239000000843 powder Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 9
- 239000002006 petroleum coke Substances 0.000 abstract description 5
- 239000011236 particulate material Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model provides a rotary kiln inner lining structure, which adopts the structure that the kiln inner lining structures of secondary and tertiary air ducts of a rotary kiln are cast into a stepped whole, and the whole rotary kiln is formed by 20 cast inner linings, wherein one of each two adjacent inner linings is an equal-height inner lining, and the other inner lining thereof is a slope-shaped inner lining, the height of the cross section of each slope-shaped inner lining is increasingly reduced in the rotation direction of the rotary kiln, and the heights of the lower ends are equal to those of the equal-height inner linings. The rotary kiln inner lining structure has the benefits that as the stepped structure with an uneven surface is adopted, the powder can be turned over along with the rotation of the kiln, and rolled on the surface of material moderately, more radiating heat can be absorbed, the calcining effect of the powder can be improved, and the petroleum coke calcining effect can be homogenized.
Description
Technical field
The utility model relates to the inner lining structure of using calcining refinery coke by rotary kiln in a kind of aluminium production process, but especially a kind of inner liner of rotary kiln structure of homogenizing calcining petroleum coke effect.
Background technology
Petroleum coke generally adopts the rotary kiln of φ 2.2*45 rice to calcine, and traditional inner liner of rotary kiln surface is smooth circular arc, with highly consistent between bar and each the bar liner.In calcining refinery coke by rotary kiln was produced, material was risen, falls by the kiln cornice along with the rotation of kiln, moved forward, and in moving, because the inner liner of rotary kiln surface is smooth circular arc, particulate material is stirred on the surface of the bed of material, and powder is mostly in the basal sliding of the bed of material.Be positioned at the particulate material on bed of material surface owing to be subjected to the radiation and the Convective Heating of elevated temperature heat air-flow, the calcining effect is better, the powder that is positioned at bed of material bottom is then owing to be subjected to the lower kiln liner conduction heating of relative temperature, thereby the calcining effect is relatively poor, and general powder resistivity is than high 80～120 Ω mm of particulate material resistivity
2/ m owing to forge the burnt quality inequality in back, causes baked anode quality heterogeneity, simultaneously because thin burnt calcining weak effect causes crackle percent defective height because of secondary shrinks when causing anode-baking.
The utility model content
The utility model provides a kind of novel inner liner of rotary kiln structure, this inner lining structure can improve the situation that powder slides along the kiln wall in bed of material bottom, realizes that the powder appropriateness rolls to the surface of material, thereby receives more radiations heat energy, improve the calcining effect of powder, homogenizing calcining petroleum coke effect.
The technical scheme that the utility model adopted is:
Kiln inner lining structure between rotary kiln two, the tertiary-air pipe is poured into whole stepped, whole rotary kiln is made up of 20 casting linings, and wherein whenever a liner being arranged in adjacent two liners is contour liner, and another liner is sloping shape liner.Slope shape liner cross-sectional height is for to reduce gradually along the rotary kiln rotation direction, and low side and contour liner are contour.
The beneficial effects of the utility model are: owing to have rugged step structure, along with the rotation of kiln, powder can produce certain stirring, the powder appropriateness can be rolled to the surface of material, thereby receive more radiations heat energy, improve the calcining effect of powder, homogenizing calcining petroleum coke effect.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is inner liner of rotary kiln cross-sectional structure figure of the present utility model.
Among Fig. 1,1. rotary kiln slope shape liner 2. lining processings stitch the ladder of contour liner 5. sloping shape liners of 3. liner grasps, 4. rotary kilns and the formation of contour liner.
The specific embodiment
Rotary kiln as shown in the figure, form by 20 casting linings, wherein 10 liners are contour liner 4,10 liners are sloping shape liner 1 in addition, and inner lining structure integral body is stepped, and in wherein every adjacent two liners a liner being arranged is contour liner 4, another liner is sloping shape liner 1, slope shape liner 1 is interspersed with contour liner 4, forms ladder 5, makes whole inner liner of rotary kiln stepped.
Claims (2)
1. inner liner of rotary kiln structure, it is characterized in that: inner lining structure integral body is stepped, and in wherein every adjacent two liners a liner being arranged is contour liner (4), and another liner is a sloping shape liner (1).
2. inner liner of rotary kiln structure according to claim 1 is characterized in that: sloping shape liner (1) cross-sectional height is for to reduce gradually along the rotary kiln rotation direction, and low side and contour liner (4) are contour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201135792U CN201463570U (en) | 2008-11-20 | 2008-11-20 | Rotary kiln inner lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201135792U CN201463570U (en) | 2008-11-20 | 2008-11-20 | Rotary kiln inner lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201463570U true CN201463570U (en) | 2010-05-12 |
Family
ID=42390921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008201135792U Expired - Fee Related CN201463570U (en) | 2008-11-20 | 2008-11-20 | Rotary kiln inner lining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201463570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822472A (en) * | 2014-01-22 | 2014-05-28 | 洛阳洛华窑业有限公司 | Castable kiln structure of cylindrical heat rotary equipment |
-
2008
- 2008-11-20 CN CN2008201135792U patent/CN201463570U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822472A (en) * | 2014-01-22 | 2014-05-28 | 洛阳洛华窑业有限公司 | Castable kiln structure of cylindrical heat rotary equipment |
| CN103822472B (en) * | 2014-01-22 | 2015-08-19 | 洛阳市洛华粉体工程特种耐火材料有限公司 | A kind of cylindrical shape turns round the castable furnace binding of hot equipment |
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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 |
Granted publication date: 20100512 Termination date: 20171120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |