- 업종: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who operates pusher machine which runs on rails at base of coke ovens, to push hot coke from ovens. Respnsibilities include:
* Drives pusher to designated oven.
* Moves levers to hook door arm to oven door and to remove it from oven, and to position ram.
* Starts ram at signal from worker on discharge side of oven to push coke out of oven.
* Withdraws ram and replaces door in oven.
* Moves leveling bar back and forth through opening near top of oven to level fresh charge of coal.
* Signals larry operator to recharge oven.
* Cleans pusher, using steam hose.
Industry:Professional careers
A professional who removes pot crust and carbon from spent anode assemblies, and cast-iron thimbles from contact rods, using crushing press, handtools, and power tools. Respnsibilities include:
* Secures anode assembly to vibrating table, using hydraulic shaft and clamps.
* Depresses pedal to activate vibration that shakes loose pot crust (cryolite), and breaks crust remaining on anode, using airhammer.
* Sorts scrap aluminum from crust, and throws scrap in barrel.
* Removes anode assembly from table.
* Pushes pot crust from table into hopper of automatic crusher to prepare crust for reuse.
* Observes machine and clears jams in hopper.
* Breaks carbon or pot crust from contact rods, using hammer or airhammer.
* Observes automatic thimble press that crushes and cracks cast-iron thimble formed around rod, and stops machine when malfunction occurs.
* Examines assemblies on conveyor to detect damaged rods, and removes assemblies that need repair.
* Removes cast iron reclaimed from rods for transfer to reduction furnace for remelting.
* May be designated according to operation performed as Anode-Assembly Cleaner II; Thimble-Press Operator.
Industry:Professional careers
A professional who relines pots and rebuilds continuous anodes used in reduction of aluminum by performing any combination of following duties. Respnsibilities include:
* Replaces spacers, shunts, risers, brackets, straps, supports, and collector bars in pots, using wrenches.
* Attaches cables to pot superstructure and signals overhead crane operator to lift it from pot.
* Blows dust from top of anode, using air gun.
* Cuts metal sheet to size, using shears or pneumatic cutter, bends it around stub of anode, and rivets it to casing.
* Roughens top of stub, using fork, and pours carbon paste into form to build up anode to specified height.
* Pours water into pot to loosen material.
* Digs burned-out lining, insulation ore, bath material, and brick from interior of pot, using digger or jackhammer.
* Lays brick base on pot floor and signals overhead crane operator to dump carbon mix into pot.
* Lines walls and floor with mix to specified depth, and tamps mix into cracks, using pneumatic hammer.
* Reforms shell cavity with insulating board, masonite, plywood, or sheet metal.
* Removes steel shell for repair, using hoist.
Industry:Professional careers
A professional who tends granulator machine that expands blast-furnace slag for use as building or insulating material. Respnsibilities include:
* Signals overhead crane operator to position iron runners that carry slag from furnace to granulator machine.
* Opens gate of furnace to allow slag from furnace to flow onto runners, and turns water, air, and steam valves to spray slag in granulator.
* Positions container under discharge chute of granulator to receive expanded slag, using car puller.
* Starts conveyor that carries expanded slag from granulator to discharge chute.
* Stops equipment and clears slag from runners, granulator, and conveyor, using iron bar.
* Lubricates equipment, using grease gun and oilcan.
Industry:Professional careers
A professional who tends granulator machine that expands blast-furnace slag for use as building or insulating material. Respnsibilities include:
* Signals overhead crane operator to position iron runners that carry slag from furnace to granulator machine.
* Opens gate of furnace to allow slag from furnace to flow onto runners, and turns water, air, and steam valves to spray slag in granulator.
* Positions container under discharge chute of granulator to receive expanded slag, using car puller.
* Starts conveyor that carries expanded slag from granulator to discharge chute.
* Stops equipment and clears slag from runners, granulator, and conveyor, using iron bar.
* Lubricates equipment, using grease gun and oilcan.
Industry:Professional careers
A professional who tends equipment that regulates flow of byproduct gases in coke-oven standpipes preparatory to discharging or charging oven. Respnsibilities include:
* Moves controls to regulate flow of gases to collecting main, to open standpipes and oven charging holes, clear oven and standpipe of gases, and control flow of ammonia liquor and steam during charging.
* Sweeps spillage into charging holes.
* Cleans top of ovens, using broom and shovel.
* Clears standpipe, nozzles, and charging holes, using chisel bar and drill.
* Pokes coal from hoppers on charging car, using bar.
* May hook chains to oven doors and use winch to raise or lower doors.
* May loosen, unplug, and move tar in main, using bar.
Industry:Professional careers
A professional who tends equipment that recovers cadmium, lead sulfate, and zinc oxide from dust collected in precipitators. Respnsibilities include:
* Signals overhead crane operator to dump dust into tank from which it is processed through series of sulfating tanks to precipitate and wash lead sulfate and cadmium.
* Pumps washed liquor to another tank for treatment prior to recovery of zinc oxide.
* Prepares lime solution and mixes it with zinc oxide liquor.
* Titrates samples or tests solution for acidity and specific gravity, using hydrometer.
* Distills cadmium in retort furnace.
Industry:Professional careers
A professional who replaces carbon anodes of electrolytic cells used in processing aluminum or magnesium. Respnsibilities include:
* Disconnects anode assembly from connector arm, using wrenches.
* Signals overhead crane operator to lift burned anodes from pot and lower new anode assembly into pot.
* Cleans connector arms, using sandblast hose.
* Fastens anode rod to connector arm, and adjusts assembly to suspend anode in bath.
* Breaks burnt carbon block from steel stubs, using sledgehammer, and unbolts steel stubs from copper rods, using wrench.
* Shovels broken carbon into boxes, and loads rods and stubs on trailers for removal.
Industry:Professional careers
A professional who performs any combination of tasks involved in melting, refining, and pouring solder. Respnsibilities include:
* Shovels scrap into furnace melting pots and adjusts fuel valves to regulate melting.
* Skims off dross with ladle.
* Plunges sieve box filled with potatoes to bottom of molten metal so that steam from charring potatoes agitates metal and brings additional dross to top.
* Skims off remaining dross.
* Ladles refined metal from pots to molds.
* Removes cooled metal from molds and places it on handtruck.
* Mixes tin, lead, or refined scrap solder in melting pots, as directed by supervisor, solder making.
* Ladles new solder into pig molds or into troughs of solder-making table.
* May cut bars into short lengths.
* Ties bars into bundles and packs bundles for shipment or storage.
* May charge lead and tin pigs into furnace melting pots, by hand or using overhead power hoist.
* May weigh pigs preparatory to charging furnace, using scale.
* May level machine that converts molten lead-tin alloys into powdered metal to process solder cream and be designated Solder Cream Maker.
Industry:Professional careers
A professional who operates overhead crane to control perforated metal basket to skim dross from molten lead and to transfer lead from blast furnace to heated kettle. Respnsibilities include:
* Moves levers to lower basket and skim off dross into barrel for salvage.
* Attaches electrically powered pump to kettle and starts pump to transfer molten lead into kettle.
* Starts powered stirrer that agitates lead.
* Skims off sulfide dross into barrel, using crane.
* Moves containers to salvage bin, using handtruck.
Industry:Professional careers
