CWMF’s Fines Metering System

As mix designs evolve, controlling the fines being fed to the mixing drum is imperative to producing the quality product that will meet spec. To address this need, the team at CWMF Corp., Waite Park, Minnesota, developed a fines metering system for its portable Dust-Eater® baghouses. The device is designed to consolidate a remotely located dust pod and additional augers. Here’s how it works:

First, the baghouse fines are conveyed to the discharge auger on the baghouse.

Fines—or dust—are carried up the discharge auger, which has a drop-out point where dust will flow into a small pod.

Not pictured, a rotary vane feeder will attach to the pod to meter and control the amount of fines—or dust—being returned to the drum via a return auger. The vane feeder is the regulating device controlling the amount of dust return.

If you are producing more fines than you are returning, the fines in the auger will bypass the dust pod, traveling up to a second drop-out point where it will be discharged to a wet auger. At this point, water will be blended with the fines and the slurry will be rejected.

For more information, contact a member of the CWMF sales team at travis@cwmfcorp.com.