Re: Induced Air Draft Fan Of Kiln (Cement Line)
Dear taxuantruong,
13 CrMo4-5 is a special heat resisting steel (alloy), and as such one of the better. If it got correctly treated & processed, it should have at least a yield strength of 180 N/mm at your specified temperature. Check this against the stress levels you got (?) from the designer / engineer / manufacturer.
N.B.: There are some other possible causes for wear in your environment, and then sometimes one has to accept a replacement cycle for some equipment, that is quite shorter than the average. Please consider the impact (in the sense of the word) of a shattered fan...
Best regards!
Roland ■
Id Fan In A Cement Plant
Dear sir!
You are very kind to anwser me. But you know, in the cement plant, the ID fan has to working in a very, very hard condition. I’ve reached many ID fans from some cement plants (modern design), and I saw, most of them have a hard facing on the blades of impeller. I know chemical composition of hard facing, all most of them like this:
Cr: 27-31%, C: 4-5% , and has something like Mo, N... etc. This hard facing have a degree of hardness about 700 HV.
This hard facing has a very good wear resistance, but with a ID fan in a cement plant, it need rebuid some wear-point every year.
Like I’ve written above, the ID fan in this new cement plant hasn’t a hard facing, all impeller was made from a material 13CrMo4-5, which has a chemical composition like this: Cr: 0.7-1.15%, Mo: 0.4-0.5%. I think it can only work in few months.
Please give me some your idea. Especially someone has experiences works in a cement plant.
Thank you very much
And sorry about my bad English.
Best regards. ■
Re: Induced Air Draft Fan Of Kiln (Cement Line)
Dear taxuantruong,
I take it that the base material of your equipment is ok and the question is, whether to hardface (no question, do request hardfaced fans, it seems to me) and if: how.
Please find attached a list of up-to-date hardfacing materials based on chrome carbide (I'm in no connection with this enterprise). You'll see that the choice of the hardfacing really depends on a closer specified environment and load condition.
So my request to you is that you contact an experienced manufacturer (You said you've seen lots of good fans, so you'll know the proper names).
Best regards
Roland ■
Thank
I've received your file. I know you have a deep reach in wear resistance material.
I do follow your advise, contact with manufacturer of fan. I'm waitting for their answer.
Thank you.
Best regards.
Truong. ■
Re: Induced Air Draft Fan Of Kiln (Cement Line)
Originally Posted by Roland Heilmann
I take it that the base material of your equipment is ok and the question is, whether to hardface (no question, do request hardfaced fans, it seems to me) and if: how.
Please find attached a list of up-to-date hardfacing materials based on chrome carbide (I'm in no connection with this enterprise). You'll see that the choice of the hardfacing really depends on a closer specified environment and load condition.
So my request to you is that you contact an experienced manufacturer (You said you've seen lots of good fans, so you'll know the proper names).
Best regards
Roland
I think that it is not easy to apply the HVOF spraying process in Vietnam. Because the equipment is not suitable for the investment rate of maintenance in cement factory.
In my opinion, Truong can use the wear resistance plate to fabricate Fan impeller and blade. I have solution for it. If you need kindly contact me then i can send some information for you or arrange to meet you to discuss about this problem.
Best regards,
Ngo Van Trong
ngo.vantrong@wa-vietnam.com
mobile: +84-903474894 ■
Id Fan - Cement Plant
Normally the supplier should supply a fan impeller with replacable impeller blade liners. Quite often problem is not wear but coating on fan (depending on chemical composition of raw mix). If there is coating, problem of wear is less. Otherwise you have to keep spare lines ready. Liners can be of hardlined. ■
Fan Blades
The attached photograph show 2 metre diameter 99.7% alumina ceramic lined fan blades; these work well at speeds of 1000 rpm and below. If there are more than 10% hard grits present, such as silicas, the ceramic may begin to breakdown at the extreme edges of the blades at speeds of around 1000 rpm.
Best Regards,
Mike,
Attachments
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Re: Induced Air Draft Fan Of Kiln (Cement Line)
Dear Traxuantruang,
We have excellent solutions for process fan applications and are leading suppliers to various cement plants worldwide. Not only the correct wear protection quality is very important for the raw mill fan but also the raw meal quality and possible high velocities at blade channels can have heavy impact on impeller wear.
Please visit our website for more information on our systems :
www.venti-oelde.de
You may also mail me : kulkarni@venti-oelde.in
Regards,
P.M.KULKARNI / VENTI OELDE INDIA PVT. LTD. ■
Induced Air Fan Of Cement Kiln
Induced Air Fan of Cement Kiln (transfer dynamic power )
Dears !
I am a student of Ha Noi University of science and techology.I am reseaching about Induced Air Fan of Cement Kiln( Transfer Dynamic power ,device electric ).I want to have Data or Detail project gradution report about it .Can anyone help me ?
Thank anyone very much
Best regard ■
Dear Roland
Originally Posted by Roland Heilmann13 CrMo4-5 is a special heat resisting steel (alloy), and as such one of the better. If it got correctly treated & processed, it should have at least a yield strength of 180 N/mm at your specified temperature. Check this against the stress levels you got (?) from the designer / engineer / manufacturer.
N.B.: There are some other possible causes for wear in your environment, and then sometimes one has to accept a replacement cycle for some equipment, that is quite shorter than the average. Please consider the impact (in the sense of the word) of a shattered fan...
Best regards!
Roland
Sr Roland ,i can't not find your email .I reaching Induced draft fan of cement plant ,Can u send to me data about it ?
Thank u very much
Best regard ■
Alumina Ceramic Linings
We make alumina ceramic wear protection linings of different shapes and dimensions.
More details: https://aluminaceramics.wordpress.com ■
Induced air draft fan of kiln (cement line)
Dears!
I works for a cement plant, it is trial-run now.
The impeller of the ID fan (temp of air&duct about 360 Deg. C) and the raw mil fan were made from material mark: 13CrMo4-5. ( Cr: 0.7-1.15%, Mo: 0.4-0.6% wt.).
I think they will be worn-out very fast.
Can anyone have idea!
Thank you very much.
Best regard. ■