Apparatus and process for dustless handling of powdered clay...

Details Apparatus and process for dustless handling of powdered clay... Apparatus and process for dustless handling of powdered clay...

2006-04-25

2006-04-25

Walsh, Donald (Department: 3653)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Article handling

C700S240000, C700S285000, C700S282000, C700S268000

Reexamination Certificate

active

07035715

ABSTRACT:
Apparatus and process for producing a clay slurry from raw clay in a substantially dust-free manner including a water-driven vacuum eductor for metering the removal of clay from a super bag container and mixing the clay with a carrier water that also serves as the motive force for the eductor for producing a clay slurry and feeding it to an equalization tank that de-aerates and equalizes the slurry. A bag shaker is provided in the source of clay to assist feeding where needed, and a vacuum breaking valve is provided for the eductor to control the flow of raw clay into the eductor. The bag of clay is suspended from a load cell that continuously delivers a weight signal to a programmable logic controller adjustable to set the rate of clay being fed to the eductor and to activate the bag shaker if the clay flow rate lags the set rate and the vacuum breaker if the clay flow rate exceeds the set rate.

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