CN105890368B - A kind of processing method after dore furnace kilneye hot spot - Google Patents
A kind of processing method after dore furnace kilneye hot spot Download PDFInfo
- Publication number
- CN105890368B CN105890368B CN201610213182.XA CN201610213182A CN105890368B CN 105890368 B CN105890368 B CN 105890368B CN 201610213182 A CN201610213182 A CN 201610213182A CN 105890368 B CN105890368 B CN 105890368B
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- CN
- China
- Prior art keywords
- hot spot
- kilneye
- dore furnace
- processing method
- burner
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/0005—Cooling of furnaces the cooling medium being a gas
- F27D2009/0008—Ways to inject gases against surfaces
Abstract
The present invention relates to the processing methods after a kind of dore furnace kilneye hot spot, include the following steps：Step 1：To taking Physical temperature-lowering outside the high-temperature area of cylinder；Step 2：Reduce kiln rotating speed；Step 3：Adjust burner air quantity；Step 4：Adjust burner position；Step 5：Improve Lee and Parker lime saturation factor in clinker（LSF）；Step 6：Reinforce coal injection pipe to clear up with grate-cooler.Processing method after presently disclosed dore furnace kilneye hot spot makes the hot spot time of kilneye greatly shorten, and reduces hot spot frequency, avoids the expansion of hot spot area, extend the service life of dore furnace.
Description
Technical field
The present invention relates to technical field of cement production, and in particular to a kind of processing method of dore furnace kilneye hot spot.
Background technology
The dore furnace kilneye hot spot of manufacture of cement is the reason is that burner disturbs flame cover because material problem is easy to wear and burns out.
This outer burner exogenous wind ejiction opening annular gap to being easy to change when the later stage, so that kiln hood flame is formed a kind of similar diffusion, rotation is floatd,
Do not collapse and be biased to the flame in kiln lining direction.Such flame injures the refractory brick of 1~4 meter of kilneye very big.
Invention content
To solve the above-mentioned problems in the prior art, the present invention provides a kind of processing sides of dore furnace kilneye hot spot
Method.
The technique effect of the present invention is achieved through the following technical solutions：
A kind of processing method after dore furnace kilneye hot spot, includes the following steps：
Step 1：To taking Physical temperature-lowering outside the high-temperature area of cylinder；
Step 2：Reduce kiln rotating speed；
Step 3：Adjust burner air quantity；
Step 4：Adjust burner position；
Step 5：Improve Lee and Parker lime saturation factor in clinker（LSF）；
Step 6：Reinforce coal injection pipe to clear up with grate-cooler.
Further, air-cooled to being carried out at cylinder hot spot and high temperature dot with axial flow blower and high-pressure air hose in step 1.
Further, in step 2, by kiln prompt drop to 3.0r/min.
Further, in step 3, Whirl deposite tank air quantity ratio setting is 3.
Further, in step 4, burner left and right position is adjusted, burner is moved into 100mm to material direction, it is red
Burner is pushed into 15cm to kiln again after kiln.
Further, in step 5, Lee and Parker lime saturation factor are carried by 96 to 97 or more.
The beneficial effects of the invention are as follows：
Processing method after presently disclosed dore furnace kilneye hot spot makes the hot spot time of kilneye greatly shorten, and reduces
Hot spot frequency avoids the expansion of hot spot area, extends the service life of dore furnace.
Specific implementation mode
Dore furnace kilneye hot spot post-processing approach disclosed in this invention is described in detail below：
Step 1：Reinforce external cooling
It is red to cylinder with axial flow blower and high-pressure air hose to taking Physical temperature-lowering outside the high-temperature area of cylinder after hot spot
Progress is air-cooled at kiln and high temperature dot, improves internal-external temperature difference, is sticked conducive to kliner coating.
Step 2：Reduce kiln speed
To reduce mechanical stress and stablizing kiln condition, kiln speed is down to 3.0r/min by 3.4r/min.After reducing kiln speed, also it is conducive to
The benefit of kliner coating is hung, and kiln skin releasing is reduced.
Step 3：Adjust burner air quantity
After there is hot spot, by the observation to flame, it is found that flame rotation is floatd, not straight.Then reduce burner Whirl deposite tank,
Air quantity ratio is down to 19 by 22.In producing thereafter, Whirl deposite tank is turned down if discovery flame profile is bad or kilneye hot spot, 12
When the beginning of the month, Whirl deposite tank air quantity ratio is turned down to 3 or so.Although Whirl deposite tank air quantity tune is obtained smaller, it is mixed to reduce coal dust and air
Rate is closed, but do not result in coal dust reaction rate and burn rate to reduce excessively, the burning to influence coal dust is forged with clinker
It burns.Cause the imperfect combustion of coal to generate a large amount of carbon monoxide after also not turned down because of Whirl deposite tank in production, causes reduction in kiln
The phenomenon that atmosphere.Therefore Whirl deposite tank tune is obtained into the smaller normal production for not influencing kiln.
In addition by reducing influence of the flame to hot spot to the adjustment of axis stream wind.Every 7 ~ 10 days, pass through flexible leading screw bar
The relative position for adjusting outer tube and outer air hose allows outer air hose to draw back 10 ~ 15mm（Adjustable distance -20 ~ 150mm）, and formed
One new " flow disturbing cover " plays the role of collapsing flame.Each adjustment axis stream wind also accordingly reduces, and is overhauled from hot spot to kiln is stopped
Before, axis stream wind air quantity ratio is adjusted by 31 to 18.
Step 4：Adjust burner or so and front and back position
Because kiln hood flame is biased to kiln lining after hot spot, therefore burner left and right position is adjusted, burner is moved to material direction
100mm.To reduce influence of the flame to kiln lining.Burner is to stretch into 5cm in kiln before hot spot, pushes away burner to kiln again after hot spot
Enter 15cm, to change the high temperature dot of fire point.
Step 5：Properly increase clinker LSF
It is found by production practices, higher LSF kliner coating is not easily to fall off, and kilneye can be allowed to form firm kliner coating.By LSF by
96 carry to 97 or more, and silicon rate is controlled 2.45 or more, and aluminium rate is maintained at 1.55 or so, see the table below.
Clinker moduli table before and after hot spot
Step 6：Reinforce coal injection pipe to clear up with grate-cooler " snowman "
Reason less than normal is counted because wicket is provide with, on coal injection pipe and " snowman " of grate-cooler has directly Secondary Air trend
It influences, and then influences the shape of kiln hood flame.If " snowman " accumulation is excessively high, flame is easy to be influenced by Secondary Air, leads to flame
It is unstable to lick brick.Workshop section requires teams and groups' cleaning in each hour primary " snowman " thus, the influence with reduction " snowman " to flame.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (6)
1. the processing method after a kind of dore furnace kilneye hot spot, it is characterised in that：Include the following steps：
Step 1：To taking Physical temperature-lowering outside the high-temperature area of cylinder；
Step 2：Reduce kiln rotating speed；
Step 3：Adjust burner air quantity；
Step 4：Adjust burner position；
Step 5：Improve Lee and Parker lime saturation factor in clinker；
Step 6：Reinforce coal injection pipe to clear up with grate-cooler.
2. the processing method after a kind of dore furnace kilneye hot spot according to claim 1, it is characterised in that：In step 1
It is middle air-cooled to being carried out at cylinder hot spot and high temperature dot with axial flow blower and high-pressure air hose.
3. the processing method after a kind of dore furnace kilneye hot spot according to claim 1, it is characterised in that：In step 2
In, by kiln prompt drop to 3.0r/min.
4. the processing method after a kind of dore furnace kilneye hot spot according to claim 1, it is characterised in that：In step 3
In, Whirl deposite tank air quantity ratio setting is 3.
5. the processing method after a kind of dore furnace kilneye hot spot according to claim 1, it is characterised in that：In step 4
In, burner left and right position is adjusted, burner is moved into 100mm to material direction, is pushed into burner to kiln again after hot spot
15cm。
6. the processing method after a kind of dore furnace kilneye hot spot according to claim 1, it is characterised in that：In step 5
In, Lee and Parker lime saturation factor are carried by 96 to 97 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213182.XA CN105890368B (en) | 2016-04-08 | 2016-04-08 | A kind of processing method after dore furnace kilneye hot spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213182.XA CN105890368B (en) | 2016-04-08 | 2016-04-08 | A kind of processing method after dore furnace kilneye hot spot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105890368A CN105890368A (en) | 2016-08-24 |
| CN105890368B true CN105890368B (en) | 2018-10-02 |
Family
ID=57012254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610213182.XA Active CN105890368B (en) | 2016-04-08 | 2016-04-08 | A kind of processing method after dore furnace kilneye hot spot |
Country Status (1)
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6309210B1 (en) * | 1999-03-16 | 2001-10-30 | L'air Liquide, Societe Anonyme Pour L'etude Et, L'exploitation Des Procedes Georges Claude | Kiln universal oxygen enrichment |
| CN201289307Y (en) * | 2008-10-29 | 2009-08-12 | 中国铝业股份有限公司 | Device for processing rapidly red kiln of rotary kiln |
| CN102997674B (en) * | 2012-12-27 | 2015-01-21 | 中冶长天国际工程有限责任公司 | Construction method for thermal insulation layer of rotary kiln liner |
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2016
- 2016-04-08 CN CN201610213182.XA patent/CN105890368B/en active Active
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| CN105890368A (en) | 2016-08-24 |
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Effective date of registration: 20180628 Address after: 230000 Anhui Hefei high tech Zone Innovation Industrial Park two phase J2 District C block 18 floor. Applicant after: Hefei dragon totem Information Technology Co., Ltd. Address before: 545000 62 Liu Tai Road, Liu Nan District, Liuzhou, the Guangxi Zhuang Autonomous Region Applicant before: Gao Bihong |
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Effective date of registration: 20191209 Address after: 221400 No.1 Zhongtong Avenue, industrial concentration zone, Shuangtang Town, Xinyi City, Xuzhou City, Jiangsu Province Patentee after: Xinyi Fuxing glass products Co., Ltd. Address before: 230000 18 Floor, Block C, J2 District, Phase II Innovation Industrial Park, Hefei High-tech Zone, Anhui Province Patentee before: Hefei dragon totem Information Technology Co., Ltd. |