Are there PFCK series reversible impact hammer crushers used in conjunction with coal in ramming coke ovens?
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Which companies have used the PFCK series of reversible impact hammer crushers produced by Yangzhou Mingtai Machinery Co., Ltd.? In particular, can the requirements regarding the particle size of the coal used for charging be met at over 88%? Our company wants to replace one of its impact crusher units; since we are switching from top-loading coal feeding to side-loading with compacted coal, there were no new crushers available at that time, so we had to use the old ones
Our factory uses the PCFKI618 model, which is a ramming coke oven; it performs well and can basically meet the requirements； The amount of maintenance required is not significant, and major problems generally do not occur. This is on the premise of proper operation.
There are two companies in Yangzhou; both Yangzhou Weijiang and the other offer good quality and service.
Which companies are using the crushers produced by Yangzhou Weijiang?
Our company uses this model! It’s okay! But if it’s used for over a year, it keeps developing mechanical problems! All those in phase two are currently imported! But I still recommend supporting domestic products!
We also use those from Yangzhou Mingtai; there are 4 units in total, and they meet the requirements. The only difference lies in the frequency at which the hammers need to be replaced. We conducted experiments for some time, aiming for a fineness level of over 90%, and in that case, the hammers had to be replaced every half month.
Which companies have high requirements regarding the fineness of coal used in ramming coking? What level of fineness can your company typically ensure? Is it necessary for ramming coking to require a coal blend fineness of 90%? I would appreciate guidance from colleagues in this field. Additionally, does the PFC**1 crusher have the capability to handle coal that is too moist?
Through experiments carried out personally by our boss over a period of six months, with the hammer heads being replaced every 10 days, the fineness level could be achieved at over 90%. However, it was concluded that it isn’t necessary for the fineness to reach above 90%. We have now resumed using the old hammer heads that were previously removed; their strength still meets the required standards. Strength is a result of various comprehensive requirements, and only when all of these are met can the standard be satisfied. This post was last edited by Wulong Dao on 2009-2-13 10:33.]
Yes, although the theory behind rammed coke suggests that it is necessary to increase the fineness of the blended coal, in reality there is no need to achieve such high levels; yet some people still say that a fineness of around 90% is ideal.