CN104315841B - Rotary kiln starting method - Google Patents
Rotary kiln starting method Download PDFInfo
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- CN104315841B CN104315841B CN201410572716.9A CN201410572716A CN104315841B CN 104315841 B CN104315841 B CN 104315841B CN 201410572716 A CN201410572716 A CN 201410572716A CN 104315841 B CN104315841 B CN 104315841B
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Abstract
The invention provides a kind of rotary kiln starting method, including: kiln is dried in step one, igniting, adopts the mode heating rotary kiln of injection coal tar burning。Rotary kiln is carried out auxiliary heating by step 2, input petroleum coke。Step 3, gradually decrease coal tar oil supplying, until only rotary kiln being heated by petroleum coke。When step 4, continuation adopt petroleum coke that rotary kiln is heated calcining heat, namely complete rotary kiln and start。Compared with correlation technique, the tolerance rate adopting rotary kiln starting method of the present invention is high, is not related to scrap build, and heat-transfer effect is good and uniformly, and reduces the overall baking kiln time, it is ensured that kiln body service life。
Description
[technical field]
The present invention relates to anode carbon element field, particularly relate to a kind of rotary kiln starting method。
[background technology]
In correlation technique, rotary kiln starting method is individually adopt coal tar to start to dry kiln, and its deficiency is in that, because of poor fluidity or well cuts block pipeline cause flame-out after will result in the wasting of resources and even start failure；And because being that rotary kiln is heated by the flowing utilizing air when individually adopting coal tar to heat, the heating caused is uneven。
Therefore, it is necessary in fact to provide a kind of new rotary kiln starting method to overcome above-mentioned technical problem。
[summary of the invention]
The technical issues that need to address of the present invention are to provide the rotary kiln starting method of a kind of stable, homogeneous heating。
A kind of rotary kiln starting method, point four heating periods, comprises the steps:
Step one, the first heating period, kiln is dried in igniting, adopts the mode heating rotary kiln kiln hood of injection coal tar burning, and the first heating period included heating and heat preservation heating and heat preservation and heats up five stages, makes rotary kiln heat up according to the heating curve set；Namely, when kiln temperature is heated to 120 ± 10 DEG C, stopping heating up turns insulation, is incubated a period of time follow-up temperature of continuing rising, when kiln temperature is heated to 240 ± 10 DEG C, stop heating up and turn insulation, be incubated a period of time follow-up temperature of continuing rising, until kiln temperature is heated to 290-310 DEG C；The time that the heating rate of temperature rise period is (6-16) DEG C/h and single holding stage is longer than the time of single temperature rise period。
Step 2, the second heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, simultaneously, put into petroleum coke discontinuously from kiln tail and rotary kiln is carried out auxiliary heating, second heating period included heating and heat preservation heating and heat preservation four-stage, made rotary kiln heat up according to the heating curve set；Namely when kiln temperature is heated to 360 ± 10 DEG C, stopping heating up turns insulation, continues heating after insulation a period of time, until after kiln temperature is heated to 450 ± 10 DEG C, being incubated a period of time；In temperature-rise period, adjust the input amount of petroleum coke and throw in interval to ensure that heating rate is at (6-16) DEG C/h, and second in the heating period first the time of holding stage longer than the time of single temperature rise period, the half that the time is the time of holding stage first of second time holding stage。
Step 3, the 3rd heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, and gradually decrease coal tar oil supplying, simultaneously, put into petroleum coke continuously from kiln tail rotary kiln is heated, when kiln temperature reaches 550-620 DEG C, stopping adopting the mode of injection coal tar burning to heat, rotary kiln is heated by the mode that individually employing puts into petroleum coke continuously from kiln tail。
Step 4, the 4th heating period, continuation employing puts into petroleum coke continuously from kiln tail and rotary kiln is heated, and when the temperature of rotary kiln reaches the calcining heat during rotary kiln normally produces, namely completes rotary kiln and starts。
Compared with correlation technique, individually adopt coal tar to start the method drying kiln, cause flame-out because mobility or well cuts block pipeline, the wasting of resources can be caused even to start failure the whole kiln that opens；Adopting one rotary kiln starting method of the present invention, petroleum coke auxiliary opens kiln and can be prevented effectively from this kind of situation, reduces independent coal tar and uses the time, and tolerance rate is high。And the method is not related to scrap build, changes heating curve and can directly utilize the method。Additionally, along with rotary kiln rotates in start-up course, petroleum coke is comprehensive with rotary kiln to be contacted, heat-transfer effect is good and uniformly, and reduces the entirety baking kiln time, it is ensured that kiln body service life。
[detailed description of the invention]
Below in conjunction with embodiment, the invention will be further described。
Embodiment 1:
A kind of rotary kiln starting method, point four heating periods, comprises the steps:
Step one, the first heating period, kiln is dried in igniting, adopts the mode heating rotary kiln kiln hood of injection coal tar burning, and the first heating period included heating and heat preservation heating and heat preservation and heats up five stages, makes rotary kiln heat up according to the heating curve set；Namely when kiln temperature is heated to 120 DEG C, stopping heating up turns insulation, is incubated the follow-up temperature of continuing rising of 48h, and when kiln temperature is heated to 240 DEG C, stopping heating up turns insulation, is incubated the follow-up temperature of continuing rising of 48h, until kiln temperature is heated to 300 DEG C；The time that the heating rate of temperature rise period is 10 DEG C/h and single holding stage is longer than the time of single temperature rise period。
Step 2, the second heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, simultaneously, put into petroleum coke discontinuously from kiln tail and rotary kiln is carried out auxiliary heating, second heating period included heating and heat preservation heating and heat preservation four-stage, made rotary kiln heat up according to the heating curve set；Namely when kiln temperature is heated to 360 DEG C, stop turn insulation that heats up, after insulation 48h, continue heating, until kiln temperature is incubated 24h after being heated to 450 DEG C；In temperature-rise period, adjust the input amount of petroleum coke and throw in interval to ensure that heating rate is at 10 DEG C/h。
Step 3, the 3rd heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, and gradually decrease coal tar oil supplying, simultaneously, put into petroleum coke continuously from kiln tail rotary kiln is heated, when kiln temperature reaches 600 DEG C, stopping adopting the mode of injection coal tar burning to heat, rotary kiln is heated by the mode that individually employing puts into petroleum coke continuously from kiln tail。
Step 4, the 4th heating period, continuation employing puts into petroleum coke continuously from kiln tail and rotary kiln is heated, and when the temperature of rotary kiln reaches the calcining heat during rotary kiln normally produces, namely completes rotary kiln and starts。
Embodiment 2:
A kind of rotary kiln starting method, comprises the steps:
Step one, the first heating period, kiln is dried in igniting, adopts the mode heating rotary kiln kiln hood of injection coal tar burning, and the first heating period included heating and heat preservation heating and heat preservation and heats up five stages, makes rotary kiln heat up according to the heating curve set；Namely when kiln temperature is heated to 130 DEG C, stopping heating up turns insulation, is incubated the follow-up temperature of continuing rising of 50h, and when kiln temperature is heated to 250 DEG C, stopping heating up turns insulation, is incubated the follow-up temperature of continuing rising of 50h, until kiln temperature is heated to 310 DEG C；The time that the heating rate of temperature rise period is 16 DEG C/h and single holding stage is longer than the time of single temperature rise period。
Step 2, the second heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, simultaneously, put into petroleum coke discontinuously from kiln tail and rotary kiln is carried out auxiliary heating, second heating period included heating and heat preservation heating and heat preservation four-stage, made rotary kiln heat up according to the heating curve set；Namely when kiln temperature is heated to 370 DEG C, stop turn insulation that heats up, after insulation 50h, continue heating, until kiln temperature is incubated 25h after being heated to 460 DEG C；In temperature-rise period, adjust the input amount of petroleum coke and throw in interval to ensure that heating rate is at 16 DEG C/h。
Step 3, the 3rd heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, and gradually decrease coal tar oil supplying, simultaneously, put into petroleum coke continuously from kiln tail rotary kiln is heated, when kiln temperature reaches 620 DEG C, stopping adopting the mode of injection coal tar burning to heat, rotary kiln is heated by the mode that individually employing puts into petroleum coke continuously from kiln tail。
Step 4, the 4th heating period, continuation employing puts into petroleum coke continuously from kiln tail and rotary kiln is heated, and when the temperature of rotary kiln reaches the calcining heat during rotary kiln normally produces, namely completes rotary kiln and starts。
Embodiment 3:
A kind of rotary kiln starting method, comprises the steps:
Step one, the first heating period, kiln is dried in igniting, adopts the mode heating rotary kiln kiln hood of injection coal tar burning, and the first heating period included heating and heat preservation heating and heat preservation and heats up five stages, makes rotary kiln heat up according to the heating curve set；Namely when kiln temperature is heated to 110 DEG C, stopping heating up turns insulation, is incubated the follow-up temperature of continuing rising of 45h, and when kiln temperature is heated to 230 DEG C, stopping heating up turns insulation, is incubated the follow-up temperature of continuing rising of 45h, until kiln temperature is heated to 290 DEG C；The time that the heating rate of temperature rise period is 6 DEG C/h and single holding stage is longer than the time of single temperature rise period。
Step 2, the second heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, simultaneously, put into petroleum coke discontinuously from kiln tail and rotary kiln is carried out auxiliary heating, second heating period included heating and heat preservation heating and heat preservation four-stage, made rotary kiln heat up according to the heating curve set；Namely, when kiln temperature is heated to 350 DEG C, stopping heating up turns insulation, continues heating after insulation 45h, until after kiln temperature is heated to 440 DEG C, being incubated 22.5h；In temperature-rise period, adjust the input amount of petroleum coke and throw in interval to ensure that heating rate is at 6 DEG C/h。
Step 3, the 3rd heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, and gradually decrease coal tar oil supplying, simultaneously, put into petroleum coke continuously from kiln tail rotary kiln is heated, when kiln temperature reaches 550 DEG C, stopping adopting the mode of injection coal tar burning to heat, rotary kiln is heated by the mode that individually employing puts into petroleum coke continuously from kiln tail。
Step 4, the 4th heating period, continuation employing puts into petroleum coke continuously from kiln tail and rotary kiln is heated, and when the temperature of rotary kiln reaches the calcining heat during rotary kiln normally produces, namely completes rotary kiln and starts。
Compared with correlation technique, individually adopt coal tar to start the method drying kiln, cause flame-out because mobility or well cuts block pipeline, the wasting of resources can be caused even to start failure the whole kiln that opens；Adopting one rotary kiln starting method of the present invention, petroleum coke auxiliary opens kiln and can be prevented effectively from this kind of situation, reduces independent coal tar and uses the time, and tolerance rate is high。And the method is not related to scrap build, changes heating curve and can directly utilize the method。Additionally, along with rotary kiln rotates in start-up course, petroleum coke is comprehensive with rotary kiln to be contacted, heat-transfer effect is good and uniformly, and reduces the entirety baking kiln time, it is ensured that kiln body service life。
Above-described is only embodiments of the present invention, it should be noted here that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it is also possible to make improvement, but these belong to protection scope of the present invention。
Claims (1)
1. a rotary kiln starting method, it is characterised in that described rotary kiln starting method divides four heating periods, comprises the steps:
Step one, the first heating period, kiln is dried in igniting, adopts the mode heating rotary kiln kiln hood of injection coal tar burning, and the first heating period included heating and heat preservation heating and heat preservation and heats up five stages, makes rotary kiln heat up according to the heating curve set；Namely, when kiln temperature is heated to 120 ± 10 DEG C, stopping heating up turns insulation, is incubated a period of time follow-up temperature of continuing rising, when kiln temperature is heated to 240 ± 10 DEG C, stop heating up and turn insulation, be incubated a period of time follow-up temperature of continuing rising, until kiln temperature is heated to 290-310 DEG C；The time that the heating rate of temperature rise period is 6-16 DEG C/h and single holding stage is longer than the time of single temperature rise period；
Step 2, the second heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, simultaneously, put into petroleum coke discontinuously from kiln tail and rotary kiln is carried out auxiliary heating, second heating period included heating and heat preservation heating and heat preservation four-stage, made rotary kiln heat up according to the heating curve set；Namely when kiln temperature is heated to 360 ± 10 DEG C, stopping heating up turns insulation, continues heating after insulation a period of time, until after kiln temperature is heated to 450 ± 10 DEG C, being incubated a period of time；In temperature-rise period, adjust the input amount of petroleum coke and throw in interval to ensure that heating rate is at 6-16 DEG C/h, and second in the heating period first the time of holding stage longer than the time of single temperature rise period, the half that the time is the time of holding stage first of second time holding stage；
Step 3, the 3rd heating period, the mode adopting the burning of injection coal tar continues heating rotary kiln kiln hood, and gradually decrease coal tar oil supplying, simultaneously, put into petroleum coke continuously from kiln tail rotary kiln is heated, when kiln temperature reaches 550-620 DEG C, stopping adopting the mode of injection coal tar burning to heat, rotary kiln is heated by the mode that individually employing puts into petroleum coke continuously from kiln tail；
Step 4, the 4th heating period, continuation employing puts into petroleum coke continuously from kiln tail and rotary kiln is heated, and when the temperature of rotary kiln reaches the calcining heat during rotary kiln normally produces, namely completes rotary kiln and starts。
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| CN201410572716.9A CN104315841B (en) | 2014-10-24 | 2014-10-24 | Rotary kiln starting method |
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| CN201410572716.9A CN104315841B (en) | 2014-10-24 | 2014-10-24 | Rotary kiln starting method |
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| CN104315841B true CN104315841B (en) | 2016-06-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270303B (en) * | 2017-06-28 | 2018-12-18 | 光大环境科技（中国）有限公司 | A kind of rotary kiln method for controlling rotation and its control system |
| CN109282640B (en) * | 2018-09-29 | 2020-06-23 | 攀钢集团钒钛资源股份有限公司 | Kiln drying method of rotary kiln |
| CN109612268A (en) * | 2018-11-30 | 2019-04-12 | 湖南嘉力亚新材料有限公司 | A kind of rotary kiln energy conservation starting method |
| CN111623636A (en) * | 2020-06-05 | 2020-09-04 | 攀钢集团钒钛资源股份有限公司 | Method for heating drying kiln of melting furnace |
| CN113654345A (en) * | 2021-08-23 | 2021-11-16 | 登封市嵩基水泥有限公司 | Operation method for pollution-free ignition temperature rise of rotary kiln |
Citations (6)
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| JPH06101973A (en) * | 1992-09-21 | 1994-04-12 | Ishikawajima Harima Heavy Ind Co Ltd | Deterioration diagnostic method for rotary kiln tire or supporting roller and deterioration recovery method |
| CN201104098Y (en) * | 2007-09-20 | 2008-08-20 | 沈阳铝镁设计研究院 | Macrotype rotary kiln petroleum coke calcining device |
| CN101634518A (en) * | 2009-08-17 | 2010-01-27 | 洛阳新安电力集团炭素有限公司 | Calcining and production method of rotary kiln |
| EP2317223A1 (en) * | 2009-10-30 | 2011-05-04 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Solid fuel burner |
| CN202630710U (en) * | 2012-03-28 | 2012-12-26 | 曲大伟 | Plasma baking furnace and ignition temperature automatic control system for rotary kiln |
| CN103727559A (en) * | 2014-01-07 | 2014-04-16 | 攀枝花钢企米易白马球团有限公司 | Ignition device for rotary kiln and ignition method thereof |
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2014
- 2014-10-24 CN CN201410572716.9A patent/CN104315841B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101973A (en) * | 1992-09-21 | 1994-04-12 | Ishikawajima Harima Heavy Ind Co Ltd | Deterioration diagnostic method for rotary kiln tire or supporting roller and deterioration recovery method |
| CN201104098Y (en) * | 2007-09-20 | 2008-08-20 | 沈阳铝镁设计研究院 | Macrotype rotary kiln petroleum coke calcining device |
| CN101634518A (en) * | 2009-08-17 | 2010-01-27 | 洛阳新安电力集团炭素有限公司 | Calcining and production method of rotary kiln |
| EP2317223A1 (en) * | 2009-10-30 | 2011-05-04 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Solid fuel burner |
| CN202630710U (en) * | 2012-03-28 | 2012-12-26 | 曲大伟 | Plasma baking furnace and ignition temperature automatic control system for rotary kiln |
| CN103727559A (en) * | 2014-01-07 | 2014-04-16 | 攀枝花钢企米易白马球团有限公司 | Ignition device for rotary kiln and ignition method thereof |
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