CN105890368A - Red kiln treatment method of kiln opening of decomposition furnace - Google Patents
Red kiln treatment method of kiln opening of decomposition furnace Download PDFInfo
- Publication number
- CN105890368A CN105890368A CN201610213182.XA CN201610213182A CN105890368A CN 105890368 A CN105890368 A CN 105890368A CN 201610213182 A CN201610213182 A CN 201610213182A CN 105890368 A CN105890368 A CN 105890368A
- Authority
- CN
- China
- Prior art keywords
- kiln
- hot spot
- kilneye
- processing method
- dore furnace
- 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.)
- Granted
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a red kiln treatment method of a kiln opening of a decomposition furnace. The method comprises the following steps: (1) the external of a high-temperature area of a cylinder is physically cooled; (2) the rotating speed of a kiln is reduced; (3) the air volume of a combustor is adjusted; (4) the position of the combustor is adjusted; (5) the Lee and Parker lime saturation coefficient (LSF) in a cement clinker is increased; and (6) the cleaning of a coal injection pipe and a grate cooler is enhanced. The red kiln treatment method of the kiln opening of the decomposition furnace largely shortens the red kiln time of the kiln opening, reduces the red frequency frequency, prevents the increment of red kiln area, and prolongs the service life of the decomposition furnace.
Description
Technical field
The present invention relates to technical field of cement production, be specifically related to the processing method of a kind of dore furnace kilneye hot spot.
Background technology
The dore furnace kilneye hot spot reason of manufacture of cement is that burner disturbs flame cover because material problem is easily worn and torn and burns out.
Easily change when this outer burner exogenous wind ejiction opening annular gap is to the later stage, make the similar diffusion of kiln hood flame formation one, rotation waft,
Do not draw and be partial to the flame in kiln lining direction in.This kind of flame is very big to the refractory brick injury of kilneye 1～4 meters.
Summary of the invention
For solving the above-mentioned problems in the prior art, the invention provides the process side of a kind of dore furnace kilneye hot spot
Method.
The technique effect of the present invention is achieved through the following technical solutions:
Processing method after a kind of dore furnace kilneye hot spot, comprises the following steps:
Step one: take Physical temperature-lowering to 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 (LSF) in clinker；
Step 6: strengthen coal injection pipe and clear up with grate-cooler.
Further, air-cooled to carrying out at cylinder hot spot and high temperature dot with axial flow blower and high-pressure air hose in step one.
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, adjust burner right position, burner is moved 100mm to material direction, red
After kiln, burner is pushed 15cm to kiln again.
Further, in step 5, Lee and Parker lime saturation factor are carried to more than 97 by 96.
The invention has the beneficial effects as follows:
Processing method after presently disclosed dore furnace kilneye hot spot, makes the hot spot time of kilneye be greatly shortened, and reduces hot spot
Frequency, it is to avoid the expansion of hot spot area, extends the service life of dore furnace.
Detailed description of the invention
Disclosed in this invention dore furnace kilneye hot spot post-processing approach be described in detail below:
Step one: strengthen outside cooling
After hot spot, take Physical temperature-lowering to outside the high-temperature area of cylinder, with axial flow blower and high-pressure air hose to cylinder hot spot and
Carry out air-cooled at high temperature dot, improve internal-external temperature difference, beneficially kliner coating and stick.
Step 2: reduce kiln speed
For reducing mechanical stress and stablizing kiln condition, kiln speed is down to 3.0r/min by 3.4r/min.After reducing kiln speed, the most beneficially kliner coating
Benefit hang, reduce kiln skin releasing.
Step 3: adjust burner air quantity
After hot spot occurs, by the observation to flame, find that flame rotation is waftd, the most straight.Reduce burner Whirl deposite tank, air quantity subsequently
Ratio is down to 19 by 22.In producing thereafter, as found, flame profile is the best or kilneye hot spot just turns down Whirl deposite tank, at the beginning of 12 months
Time, Whirl deposite tank air quantity ratio is turned down to about 3.Although Whirl deposite tank air quantity is adjusted less, reduce coal dust and mix speed with air
Rate, but do not result in coal dust reaction rate and reduce too much with burn rate, thus have influence on burning and the clinker burning of coal dust.Raw
The imperfect combustion causing coal because of Whirl deposite tank after not turning down in product produces substantial amounts of carbon monoxide, causes reducing atmosphere in kiln
Phenomenon.Therefore Whirl deposite tank is adjusted to obtain the less normal production not having influence on kiln.
In addition by adjusting of axial flow wind is reduced the flame impact on hot spot.Every 7 ~ 10 days, by flexible wire lever
Regulation trocar sheath and the relative position of outer airduct, allow outer airduct draw back 10 ~ 15mm(adjustable distance-20 ~ 150mm), and formed
One new " flow disturbing cover ", plays the effect drawing flame in.Regulation axial flow wind reduces the most accordingly every time, from hot spot to stopping kiln maintenance
Before, axial flow wind air quantity ratio is adjusted to 18 by 31.
Step 4: adjust about burner and front and back position
Because of kiln hood flame deflection kiln lining after hot spot, therefore adjust burner right position, burner is moved to material direction
100mm.To reduce the flame impact on kiln lining.Before hot spot, burner is to stretch into 5cm in kiln, is pushed away to kiln by burner after hot spot again
Enter 15cm, to change the high temperature dot of fire point.
Step 5: properly increase grog LSF
Found that by production practices higher LSF kliner coating difficult drop-off can allow kilneye form firm kliner coating.LSF is being carried by 96
To more than 97, silicon rate controls more than 2.45, and aluminum rate is maintained at about 1.55, see table.
Clinker moduli table before and after hot spot
Step 6: strengthen coal injection pipe and clear up with grate-cooler " snowman "
Because of the reason that the design of wicket cover is less than normal, on coal injection pipe, and " snowman " of grate-cooler has directly impact to secondary wind trend,
And then affect the shape of kiln hood flame.As " snowman " piles up too high, flame is easily affected by secondary wind, causes flame drifting to be licked
Brick.Teams and groups' cleaning in each hour is required once " snowman ", to reduce " snowman " impact on flame for this workshop section.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention,
Although being described in detail the present invention with reference to previous embodiment, for a person skilled in the art, it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (6)
1. the processing method after a dore furnace kilneye hot spot, it is characterised in that: comprise the following steps:
Step one: take Physical temperature-lowering to 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: strengthen coal injection pipe and clear up with grate-cooler.
The processing method of a kind of dore furnace kilneye hot spot the most according to claim 1, it is characterised in that: use in step one
Axial flow blower and high-pressure air hose are air-cooled to carrying out at cylinder hot spot and high temperature dot.
The processing method of a kind of dore furnace kilneye hot spot the most according to claim 1, it is characterised in that: in step 2,
By kiln prompt drop to 3.0r/min.
The processing method of a kind of dore furnace kilneye hot spot the most according to claim 1, it is characterised in that: in step 3,
Whirl deposite tank air quantity ratio setting is 3.
The processing method of a kind of dore furnace kilneye hot spot the most according to claim 1, it is characterised in that: in step 4,
Adjust burner right position, burner is moved 100mm to material direction, after hot spot, burner is pushed 15cm to kiln again.
The processing method of a kind of dore furnace kilneye hot spot the most according to claim 1, it is characterised in that: in step 5,
Lee and Parker lime saturation factor are carried to more than 97 by 96.
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 true CN105890368A (en) | 2016-08-24 |
| CN105890368B 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)
| Country | Link |
|---|---|
| CN (1) | CN105890368B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010044089A1 (en) * | 1999-03-16 | 2001-11-22 | Ovidiu Marin | 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 |
| CN102997674A (en) * | 2012-12-27 | 2013-03-27 | 中冶长天国际工程有限责任公司 | Construction method for thermal insulation layer of rotary kiln liner |
-
2016
- 2016-04-08 CN CN201610213182.XA patent/CN105890368B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010044089A1 (en) * | 1999-03-16 | 2001-11-22 | Ovidiu Marin | 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 |
| CN102997674A (en) * | 2012-12-27 | 2013-03-27 | 中冶长天国际工程有限责任公司 | Construction method for thermal insulation layer of rotary kiln liner |
Non-Patent Citations (2)
| Title |
|---|
| 刘庆新: ""回转窑筒体出现红窑的操作调整方案"", 《水泥》 * |
| 刘继斌等: ""回转窑红窑优化调整"", 《技术改造》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105890368B (en) | 2018-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4355748B2 (en) | Method for producing iron ore pellets | |
| JP2011132086A5 (en) | Selection method and manufacturing method of titania-doped quartz glass | |
| CN106277855B (en) | Formation rings in a kiln control method when KVS Active Lime Rotary Kiln coal powder injection | |
| CN105890368A (en) | Red kiln treatment method of kiln opening of decomposition furnace | |
| UA104895C2 (en) | Method for production of cement clinker in a plant and the plant for production of cement clinker as such | |
| MX2012000287A (en) | Method for cooling granular solid materials, and continuous curing facility as such. | |
| JP2018070952A (en) | Method of blast furnace operation and blast furnace apparatus | |
| BR112013021205A2 (en) | method for heating a blast furnace stove | |
| JP6213734B2 (en) | Method for producing sintered ore | |
| CN209664282U (en) | A kind of baking guide device applied to ladle and brick cup | |
| JP6160838B2 (en) | Oxygen enrichment method and oxygen enrichment apparatus for a thermal insulation furnace of a sintering machine | |
| CN106977118A (en) | A kind of method of rotary kiln coal gas of converter lime burning | |
| CN207751334U (en) | A kind of roaster blowning installation | |
| JP6503925B2 (en) | Method of manufacturing cement clinker | |
| CN206739867U (en) | A kind of rotary kiln Secondary Air air-intake device | |
| CN102433407A (en) | Full-dry dust removal furnace opening air entraining method for drying furnace opening crude gas pipeline of blast furnace | |
| CN107840562B (en) | Preparation device of quartz product | |
| EP2275742A1 (en) | Nozzle and method for manufacturing a nozzle | |
| US824728A (en) | Process of regulating combustion. | |
| CN205635504U (en) | System for carbide stove and shaft furnace ally oneself with to be used | |
| CN102980400A (en) | Sintering ignition furnace | |
| CN103130522B (en) | A kind of online anhydrous carbon element press-in material of blast furnace and application method | |
| CN207435027U (en) | A kind of fluidized bed furnace for extraction sulfuric acid | |
| CN101736107B (en) | Method for poking air inlet of blast furnace | |
| JP6160839B2 (en) | Oxygen enrichment method for sinter heat-retaining furnace and its heat-retaining furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
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 |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
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. |
|
| TR01 | Transfer of patent right |