- Settore: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends batch or continuous rotary driers that remove moisture from solid chemical materials. Respnsibilities include:
* Dumps or shovels materials into batch drier chamber, or starts feed conveyors of continuous drier.
* Starts drying chamber rotating.
* Admits steam or hot air to drying chamber until specified heat is attained, as indicated by temperature chart recorders and gauges.
* Opens vacuum valves to withdraw accumulated vapors where materials require drying at subatmospheric pressure.
* Stops rotation of drying chamber to dump dried materials, or starts discharge conveyor to empty contents of chamber and transfer dried product to storage, packaging, or further processing.
* May tend auxiliary equipment, such as condensers and vacuum pumps.
* Records operating data in equipment log, such as temperatures, pressures, drying time, and hourly production.
* May feel discharged materials for specified dryness.
* May submit samples to control laboratory for moisture analysis.
* May regulate drier temperature, and speed of conveyors and rotary chamber, according to knowledge of process and material being dried.
Industry:Professional careers
A professional who tends spray driers that evaporate water from slurries, forming caked or powdered product. Respnsibilities include:
* Pumps slurry to atomizer nozzle in drier and regulates spray of slurry as instructed.
* Observes temperature recorders and adjusts valves, controls, and dampers to heat or cool and direct air through drier to evaporate water or solidify slurry.
* Observes discharge conveyor for malfunctions or jamming to maintain uninterrupted flow of dried materials to storage.
* Rakes out accumulated cake or powder remaining in drier, and clears clogged lines, using length of wire.
* May place empty drums under discharge end of spray tower to be filled with specified amount of powdered emulsifier.
* May tend auxiliary equipment, such as cyclone filters and scrubbing tower to refine product or recover usable materials.
Industry:Professional careers
A professional who tends spray driers that evaporate water from slurries, forming caked or powdered product. Respnsibilities include:
* Pumps slurry to atomizer nozzle in drier and regulates spray of slurry as instructed.
* Observes temperature recorders and adjusts valves, controls, and dampers to heat or cool and direct air through drier to evaporate water or solidify slurry.
* Observes discharge conveyor for malfunctions or jamming to maintain uninterrupted flow of dried materials to storage.
* Rakes out accumulated cake or powder remaining in drier, and clears clogged lines, using length of wire.
* May place empty drums under discharge end of spray tower to be filled with specified amount of powdered emulsifier.
* May tend auxiliary equipment, such as cyclone filters and scrubbing tower to refine product or recover usable materials.
Industry:Professional careers
A professional who performs following duties to remove moisture from devulcanized scrap rubber. Respnsibilities include:
* Cleans adhering scrap stock from drier and shaker screens, using handtools and airhose.
* Dumps bags of soapstone into hopper of mechanical shaker that sifts soapstone to prevent tacky surfaces of stock from adhering to shaker.
* Opens and closes discharge chutes of drier as instructed.
* May move dried stock to storage bins on handtrucks.
Industry:Professional careers
A professional who assists drier operator vi in drying glutinous material, such as gelatin and glue.
* Starts equipment and turns valves as directed.
* Moves glutinous material to drier, using handtruck.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who tends steam-heating equipment that cures rubber in jacketed firehose. Respnsibilities include:
* Lifts precut lengths of specified rubber tubing and braided fabric hose jacket onto table.
* Dusts rubber tubing with soapstone to prevent tubing from sticking to jacket.
* Turns crank to wind tubing onto stock wheel.
* Aligns jacket with mechanical threading device and clamps threading fixture to end of rubber tubing.
* Starts winch that pulls tubing into jacket.
* Lifts and clamps ends of jacketed hose to fixtures on steam lines.
* Presses hose into curing cavities on table that hold hose in flattened position when curing.
* Observes gauges and turns valve to inject steam into hose at specified temperature and pressure for curing.
* Places cured hose on storage rack.
Industry:Professional careers
A professional who tends burners supplying heat to retorts (reaction vessels) to facilitate heating of materials to produce chemical products. Respnsibilities include:
* Moves controls to regulate flow of gas or oil to burners to maintain temperature of retorts at specified reading.
* Cleans and repairs retorts, using handtools, scrapers, brushes, and cleaning agents.
Industry:Professional careers
A professional who tends kettles that boil soap ingredients. Respnsibilities include:
* Opens valves to admit alkali, fat, tallow, lye, and steam into kettles.
* Observes temperature gauges and rate of boiling and turns valves to regulate temperatures.
* Draws samples and delivers them to laboratory.
* Adds soda and water, according to instructions, to bring mixture to specifications, using scoop and hose.
* Opens valves to drain off glycerine, water, and sludge.
* May stir soap solutions with wooden paddle to promote blending.
Industry:Professional careers
A professional who tends gas- or oil-fired kiln that burns lime sludge to recover lime. Respnsibilities include:
* Turns panel controls to adjust burner and flow of sludge into kiln according to temperature gauges.
* Starts conveyor that carries lime from kiln to hopper of slaking machine.
* May tend washers and filters that remove cooking liquor from sludge before it is burned.
Industry:Professional careers
A professional who tends conveyor, and spraying and drying unit that cools and dries milled rubber stock. Respnsibilities include:
* Monitors flow of rubber stock as it drops from mixer through batch-off mill onto conveyor.
* Removes stock adhering to mill rollers with long-handled scraper and frees stock if it piles up on conveyor.
* Adjusts conveyor speed and turns valves to regulate water spray and airflow that cools and dries stock.
Industry:Professional careers
