CN204007081U - Rotary kiln expansion gear - Google Patents
Rotary kiln expansion gear Download PDFInfo
- Publication number
- CN204007081U CN204007081U CN201420486206.5U CN201420486206U CN204007081U CN 204007081 U CN204007081 U CN 204007081U CN 201420486206 U CN201420486206 U CN 201420486206U CN 204007081 U CN204007081 U CN 204007081U
- Authority
- CN
- China
- Prior art keywords
- joint
- cylindrical shell
- expansion joint
- deflector
- air channel
- 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
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Abstract
The utility model discloses a kind of rotary kiln expansion gear, comprise outer cylinder body, inner tube wall, middle level cylindrical shell and air channel, between outer cylinder body and middle level cylindrical shell, form heat preservation sandwich layer, between middle level cylindrical shell and inner barrel, form air channel, be positioned at cylindrical shell end and be provided with the air inlet communicating with air channel, between inside and outside cylindrical shell, support ring is housed, be characterized in: inner barrel is divided into several section of joint, in the air channel of each section of joint, expansion joint is set, above expansion joint, be provided with deflector, the expansion joint two ends of each section of joint are all connected with inner barrel with deflector.Because the two ends of each segment joint expansion joint are all connected and fixed with deflector and inner barrel, therefore strengthen barrel soldering performance, avoid barrel distortion, improve its service life; Welding deflector is laid on expansion joint top, has avoided the direct contact of material to expansion joint, manufactures difficulty and reduces, and is convenient to Assembling And Welding; The product quality of roasting and stable yield.
Description
Technical field
The utility model relates to metallurgical calcination rotary kiln technical field, particularly a kind of rotary kiln expansion gear.
Background technology
Existing energy-conservation rotary kiln rotary structure (referring to Fig. 1) is mainly by following module composition: 1 ' outer cylinder body; 2 ' support ring; 3 ' heat-insulation layer; 4 ' air channel; 5 ' inner barrel; 6 ' air inlet; 7 ' middle level cylindrical shell.Its structure is: cylindrical shell one end is fixed, and centre arranges ring supporting device, and after cylindrical shell is heated, cylindrical shell expands to free end.For ensureing that cylindrical shell can free-extension after being heated, between annular brace and cylindrical shell, need reserved certain gap.After cylindrical shell rotation, inner barrel will do oscillating motion taking rear portion fixing point as fulcrum, in service in actual production, finds that this project organization exists following disadvantage: 1, rear end fixing point ftractureed after running a period of time; 2, cylindrical shell circular weld cracking; 3, cylindrical shell is out of shape seriously after being heated, and occurs substandard bulge or pit; 4, because cylindrical shell snaps, need often to stop production maintenance, maintenance environment is severe, and work difficulty is very large; 5, be 2～3 months the service life of the inner cylindrical shell of former project organization, just need to stop kiln maintenance after use a period of time, and impact is produced.
Utility model content
The purpose of this utility model is exactly the deficiency existing for solving prior art, and design one can be avoided High Temperature Rotating cylindrical shell be heated craze and transfiguration, long service life, the stay-in-grade rotary kiln expansion gear of roasted product.
Mentality of designing of the present utility model is: inner barrel is divided into several section of joint, and in the middle of cylindrical shell, welding corrugated-type expansion joint compensates the cylindrical shell expansion causing due to temperature rise, above expansion joint, deflector is set, to play the protective effect to expansion joint simultaneously.
The utility model proposes for achieving the above object following technical scheme: a kind of rotary kiln expansion gear, it comprises outer cylinder body, inner tube wall, middle level cylindrical shell and air channel, between outer cylinder body and middle level cylindrical shell, form heat preservation sandwich layer, between middle level cylindrical shell and inner barrel, form air channel, be positioned at cylindrical shell end and be provided with the air inlet communicating with air channel, interior, support ring is housed between outer cylinder body, it is characterized in that: inner barrel is divided into several section of joint, in the air channel of each section of joint, expansion joint is set, above expansion joint, be provided with deflector, the expansion joint two ends of each section of joint are all connected with inner barrel with deflector.
Described expansion joint is regular wave shape wave, and the expansion joint quantity of each section of joint is designed to 1～3 ripple.
Between described deflector and expansion joint, leave the gap of 1～5mm.
The utility model can solve High Temperature Rotating cylindrical shell circular weld cracking well, be heated after the problem of gross distortion, the equipment after improvement has the following advantages:
1, because the two ends of each segment joint expansion joint are all connected and fixed with deflector and inner barrel, therefore strengthen barrel soldering performance, improved its service life;
2, expansion joint can quick and precisely compensate its swell increment according to the temperature rise of each section of joint, has avoided barrel distortion;
3, welding deflector is laid on expansion joint top, has avoided the direct contact of material to expansion joint, has further improved service life of equipment;
4, the difficulty of manufacturing reduces, and is convenient to Assembling And Welding; After improving, the situation of on-the-spot feedback is the continuous operation of rotary kiln 1 year, stops the inner cylindrical shell of kiln inspection without any snapping sign, roasting product quality and stable yield out.
Brief description of the drawings
Fig. 1 is existing rotary kiln cross-sectional view.
Fig. 2 is the utility model cross-sectional view.
Fig. 3 is expansion mechanism enlarged diagram.
In figure: 1 outer cylinder body; 2 support rings; 3 heat preservation sandwich layers; 4 air channels; 5 inner barrels; 6 air inlets; 7 expansion joints; 8 deflectors; 9 middle level cylindrical shells.
Detailed description of the invention
The utility model is described further by detailed description of the invention below in conjunction with accompanying drawing.
As shown in Figure 2 and Figure 3, after improving, rotary kiln rotating part (seeing Fig. 2) is mainly made up of outer cylinder body 1, support ring 2, air channel 4, inner barrel 5, air inlet 6, expansion joint 7, deflector 8 and middle level cylindrical shell 9, between outer cylinder body 1 and middle level cylindrical shell 9, form heat preservation sandwich layer 3, fill insulant material in interlayer; Between middle level cylindrical shell 9 and inner barrel 5, form ventilation air duct 4, be positioned at cylindrical shell end and be provided with two air inlets 6 that communicate with air channel 4, support ring 2 is housed between inside and outside cylindrical shell, feature of the present utility model is: inner barrel is divided into several section of joint, in the air channel 4 of each section of joint, double wave expansion joint 7 is set, expands for compensating the cylindrical shell causing due to temperature rise; For expansion joint is played a protective role, on expansion joint, lay welding one deck deflector 8, expansion joint 7 two ends of each section of joint are all connected and fixed and are integrated with deflector 8 and inner barrel 5; Between deflector 8 and expansion joint 7, leave the gap of 1～5mm, so that maintenance and the protection to operation cylindrical shell.Expansion joint 7 is designed to regular wave shape wave, and according to the difference of kiln body diameter, length, purposes, expansion joint 7 quantity of each section of joint are designed to 1～3 ripple conventionally.
Claims (3)
1. a rotary kiln expansion gear, it comprises outer cylinder body, inner tube wall, middle level cylindrical shell and air channel, between outer cylinder body (1) and middle level cylindrical shell (9), form heat preservation sandwich layer (3), between middle level cylindrical shell (9) and inner barrel (5), form air channel (4), be positioned at cylindrical shell end and be provided with the air inlet (6) communicating with air channel (4), interior, support ring (2) is housed between outer cylinder body, it is characterized in that: inner barrel is divided into several section of joint, in the air channel (4) of each section of joint, expansion joint (7) is set, above expansion joint, be provided with deflector (8), expansion joint (7) two ends of each section of joint are all connected with inner barrel (5) with deflector (8).
2. rotary kiln expansion gear according to claim 1, is characterized in that: described expansion joint (7) is regular wave shape wave, and expansion joint (7) quantity of each section of joint is designed to 1～3 ripple.
3. rotary kiln expansion gear according to claim 1, is characterized in that: the gap of leaving 1～5mm between described deflector (8) and expansion joint (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486206.5U CN204007081U (en) | 2014-08-22 | 2014-08-22 | Rotary kiln expansion gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486206.5U CN204007081U (en) | 2014-08-22 | 2014-08-22 | Rotary kiln expansion gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204007081U true CN204007081U (en) | 2014-12-10 |
Family
ID=52047070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420486206.5U Expired - Fee Related CN204007081U (en) | 2014-08-22 | 2014-08-22 | Rotary kiln expansion gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204007081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405062A (en) * | 2018-03-13 | 2018-08-17 | 宣达实业集团有限公司 | A kind of abrasion resistant roller |
| CN114608317A (en) * | 2022-03-12 | 2022-06-10 | 嘉兴市合一工业电炉有限公司 | Tunnel furnace with energy recycling system |
-
2014
- 2014-08-22 CN CN201420486206.5U patent/CN204007081U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405062A (en) * | 2018-03-13 | 2018-08-17 | 宣达实业集团有限公司 | A kind of abrasion resistant roller |
| CN114608317A (en) * | 2022-03-12 | 2022-06-10 | 嘉兴市合一工业电炉有限公司 | Tunnel furnace with energy recycling system |
| CN114608317B (en) * | 2022-03-12 | 2023-11-07 | 嘉兴市合一工业电炉有限公司 | Tunnel furnace with energy recycling system |
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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: 20141210 Termination date: 20180822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |