Can any body help with finding an isolation valve for a lime chip feeder duct attached to the kiln? Issue is to minimize trap air going into the kiln and the loss of vacuum in the kiln.
Can you use a rotary valve, or a star feeder in the feed to your chute? They probably use them on the dust collector hoppers of your bark or hog fuel boiler if you have one.
RMW, The service I am looking for is lime rock feed to the kiln. The rocks or chips are about 10mm x 20mm x 5mm in size (random sizes). So my concern is of they will get jam in the rorary feeder?
So, then are you looking for more like a slide gate? If so, here is a link to a company that has experience in the coal and limestone feed business for boilers. Their products are built very heavy duty, and might fit your need.