Job Description:

• 1) Tends vacuum drum driers that heat liquid compounds to form caked or powdered chemical products: Connects tube from feed inlet to drum containing liquid to be dried.

• 2) Turns steam and coolant valves and observes thermometer to regulate temperature of steam-jacketed drum enclosed in vacuum chamber, according to specifications.

• 3) Starts pump and observes vacuum gauge to maintain prescribed vacuum in chamber.

• 4) Starts revolving drum that dries liquid as it splashes against heated drum, forming caked or powdered product that is removed from surface of drum by scraper blade.

• 5) Observes and feels dried product, periodically submits sample for laboratory moisture analysis, and adjusts drying temperature and vacuum if product does not meet plant standards.

• 6) Records drying time of batch, gauge readings, and amount or weight of materials dried.

• 7) May set scraper blade at specified distance from drum, using handtools.

• 8) May fill containers with dried materials, weigh containers, and tag containers for shipment or storage.