Palmer Manufacturingrsquos HCCLSeries sand classifier system has four major components a base or plenum chamber into which fluidizing air is supplied by a blower a fluidizing deck a heat exchanger bundle and a main body which serves as a cover and pressure chamber

Palmer Manufacturing’s HCCL-Series sand classifier system has four major components: a base, or plenum chamber, into which fluidizing air is supplied by a blower; a fluidizing deck; a heat exchanger bundle; and a main body, which serves as a cover and pressure chamber.

Adjusting Sand Classifiers to Reduce Fines

There are ways to elevate the volume of fines removed, but watch the exhaust velocity or risk losing an excessive amount of larger sand particles. Dwell time Fluidizing air volume Exhaust negative pressure

Many foundry managers and operators wonder about the possibility and/or effectiveness of removing airborne sand fines by using a fluid bed classifier. The following summary will help anyone to troubleshoot the sand classification process to increase fines removal.

Removing sand fines through the classifier depends on several process details, namely 1) dwell time; 2) fluidizing air volume; and 3) exhaust negative pressure in the head space.

Dwell time —

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