fer
3 posts
TimePosted 12/06/2007 12:04:24
fer says

Problem with cooling system

We have a ball mill to grind clinker and we have a problem with the cooling system when the temperature is high.

When we use water for cooling in order to control/reduce the clinker temperature, we have no problem but when we use air for cooling after using water the pipe and the nozzle is blocked,so we lost the watertight.

Does anybody have the same problem?

What kind of solution do you recomend?

Thanks in advance

Reply


Know the answer to this question? Join the community and register for a free guest account to post a reply.

chum199
5 posts
TimePosted 13/06/2007 01:24:25
chum199 says

Re: Problem with cooling system

Dear Sirs,

Your water spray nozzle located on counter-current with air flow or not? if yes the problem may be caused by agglomeration of cement on nozzle tip.

The solution may be changing the nozzle position by spraying water in co current with air flow, in front of 2nd compartment and you should take heat balance of your cement mill system

Best Regards

Tukta

Reply

fer
3 posts
TimePosted 14/06/2007 10:04:07
fer says

Re: Problem with cooling system

thank you for your answer.

Yes, the nozzle is located on counter-current with air flow produced by a fan, but when we don't use water for cooling, a continuous air flow is running in the nozzle.

We know that the problem is aglomeration of cement on the nozzle tip but we don´t know how to solve the problem because we can´t change the position of the nozzle so we need to find other solution.

Do you know if there is any treatment or coating for the nozzle in order to avoid aglomeration of cement?

Do you know any type of nozzle or system that avoid this problem?

Thank you very much for your time.

Best regards

 

 

Reply

jash
3 posts
TimePosted 11/07/2007 21:50:11
jash says

Re: Problem with cooling system

the air flow is meant fot this purpose only. it helps to eliminate the problem of nozzle chocking while water flow stops. you may increase the air stream velocity by reducing the pipe cross section. secondly you can increase the bore diameter of the nozzle. as with reduced bore size the water stream gets dispersed. which constructs a mist cloud surrounding the nozzle which is one of the causes for particle deposition on the nozzle and hence chocking.

Reply