- 업종: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who charges scrap iron or pig iron, coke, and limestone (flux) into cupola in which iron is melted to make castings. Respnsibilities include:
* Determines quantities and types of materials to be charged, following work orders or verbal instructions from cupola tender.
* Shovels materials into wheelbarrow.
* Weighs net contents and wheels materials to charging door of cupola.
* Dumps iron, coke, and limestone through charging door so that charge in cupola is in alternate layers.
* May operate power-driven hopper, conveyor, or crane to transfer materials from storage bins to cupola.
* May weigh out materials or load materials from preweighed piles onto conveyor that charges cupola.
Industry:Professional careers
A professional who charges scrap iron or pig iron, coke, and limestone (flux) into cupola in which iron is melted to make castings. Respnsibilities include:
* Determines quantities and types of materials to be charged, following work orders or verbal instructions from cupola tender.
* Shovels materials into wheelbarrow.
* Weighs net contents and wheels materials to charging door of cupola.
* Dumps iron, coke, and limestone through charging door so that charge in cupola is in alternate layers.
* May operate power-driven hopper, conveyor, or crane to transfer materials from storage bins to cupola.
* May weigh out materials or load materials from preweighed piles onto conveyor that charges cupola.
Industry:Professional careers
A professional who places condenser on plate supports in front of retort in zinc furnace to collect and condense zinc vapor created by heating ore in retort. Respnsibilities include:
* Charges retort with mixture of ore and coal, using skip-loader.
* Lifts and positions condenser in front of retort, using tongs.
* Seals joint between retort and condenser by spreading finely ground and dampened mixture of coal and loam to prevent escape of zinc vapor.
* Banks mouth of condenser with mixture of coal and ore or waste material to prevent zinc from overflowing while allowing combustion gases to escape.
Industry:Professional careers
A professional who performs any combination of following duties involved in operation of open-hearth furnaces. Respnsibilities include:
* Moves controls to open and close furnace doors.
* Removes molten metal in low spots or pockets of furnace floor, using air lance. Shovels refractory materials onto furnace bottom.
* Transports additives from bins to furnace.
* Shovels additives into furnace and ladle.
* Cleans and reams furnace taphole and pries solidified metal from pouring spout, using reaming rod and bar.
* Sprays slag with water, using hose.
* Maintains tools and equipment required for furnace operations.
* Cleans charging floor and furnace areas.
Industry:Professional careers
A professional who performs any combination of following duties involved in operation of open-hearth furnaces. Respnsibilities include:
* Moves controls to open and close furnace doors.
* Removes molten metal in low spots or pockets of furnace floor, using air lance. Shovels refractory materials onto furnace bottom.
* Transports additives from bins to furnace.
* Shovels additives into furnace and ladle.
* Cleans and reams furnace taphole and pries solidified metal from pouring spout, using reaming rod and bar.
* Sprays slag with water, using hose.
* Maintains tools and equipment required for furnace operations.
* Cleans charging floor and furnace areas.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in operating converter furnaces to produce metallic copper from copper matte, or in mixing, roasting, or drying copper concentrate prior to smelting operation. Respnsibilities include:
* Monitors processing to verify conformance to specifications.
* Inspects equipment to detect malfunctions or defects and assigns worker to make repairs or adjustments.
* Demonstrates operation and maintenance of machines and equipment to new workers, and explains plant layout, processing techniques, and safety regulations to orient new workers.
* May be designated according to operation supervised as Roaster Supervisor.
* Performs duties as described under supervisor master title.
Industry:Professional careers
A professional who controls calciners and allied equipment from instrumented panelboard to heat ore slurry, dry slurry, and drive off impurities. Respnsibilities include:
* Monitors recording instruments, flowmeters, panel lights, and other indicators, and listens for warning signals on panel to operate calciner, conveyor system, and allied equipment.
* Turns screws and knobs on panelboard to control feed rate, temperature, and conveying of ore.
* Examines calcined ore to determine, by color, that it meets company specifications.
* Confers with other departments to adjust steam, water, and fuel supply, using telephone or radio.
* Confers with supervisor to report equipment failure or malfunction, and to resolve problems in process changes.
* Maintains record of steam, water, and fuel used during shift.
* Records process changes, malfunctions, and other actions in shift log and operator's sheet.
* Examines calciners and allied equipment, such as conveyor belts and chutes, blowers, pumps, compressors, and power lines, waterlines, and air lines, for wear or defects.
* Periodically cleans calciner, working as member of team, and using airhammer, water hose, pick, shovel, and wheelbarrow.
* When drying copper ore, may be designated Reactor Operator.
Industry:Professional careers
A professional who assists kiln operator in calcining hydrated alumina in rotary kilns. Respnsibilities include:
* Moves controls to direct flow of alumina through standby equipment.
* Lubricates valves with grease guns.
* Adjusts packing glands to prevent leaks, using handtools.
* Cleans coolers, using air lance. Observes flow of alumina through kilns, inspects equipment, and reports defects or malfunctions to kiln operator.
* Takes sample of alumina in bucket for laboratory analysis.
* Records weights of alumina stored.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who assists kiln operator in calcining hydrated alumina in rotary kilns. Respnsibilities include:
* Moves controls to direct flow of alumina through standby equipment.
* Lubricates valves with grease guns.
* Adjusts packing glands to prevent leaks, using handtools.
* Cleans coolers, using air lance. Observes flow of alumina through kilns, inspects equipment, and reports defects or malfunctions to kiln operator.
* Takes sample of alumina in bucket for laboratory analysis.
* Records weights of alumina stored.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who records machine and equipment readings in shift log at specified intervals, examines machines and equipment for malfunctions, and draws composite samples of ore at various stages of processing for laboratory testing. Respnsibilities include:
* Reads gauges and records water and oil levels, temperatures, and pressures at specified intervals.
* Examines motors for leaks or hot bearings, conveyor belts for buildup or spillage, belt rollers for squeaks that indicate wear or belt misalignment, oil level in sight glasses, and exhaust fans for dirt and dust buildup.
* Turns handle to reposition filter on fluidizing blower.
* Dips sample of ore into bucket or jar at various stages of processing to collect composite sample for laboratory analysis.
* Notifies calciner operator of machine and equipment malfunctions.
Industry:Professional careers
