Glossary
Steel and refining
Coke oven battery
Also known as coke oven, coke battery, by-product coke battery.
A coke oven battery is an array of tall, narrow refractory-lined ovens in which coking coal is heated in the absence of air to produce metallurgical coke for the blast furnace. The process produces large quantities of by-product gas and tar, captured by the by-product plant.
Cleaning targets
- Coke-side pushing-emission baghouse (PEC) — captures dust released when hot coke is pushed from the oven into the quench car
- Charging emissions baghouse — dust released during coal charging
- By-product gas dust collection — particulate in the raw coke-oven gas before processing
- Stack-line cleaning for waste-heat recovery boilers
Sonic-horn duty
Sonic horns on PEC and charging baghouse hoppers prevent the sticky coal-and-coke-dust mix from bridging — a particularly hard duty because of the cohesive, partly-tarry deposit character.
Related terms
Related terms
- Blast-furnace gas cleaningBlast-furnace top gas is cleaned in a multi-stage train: dust catcher, Venturi scrubber, wet ESP. Bridging in dust-catcher hoppers is a recurring operational issue.
- BaghouseA baghouse is the structural enclosure that holds the bags, cages, tubesheet, cleaning system and hoppers of a fabric-filter dust collector. Sized in compartments for online isolation.
- Sonic hornA sonic horn is a pneumatically-driven low-frequency sound emitter (typically 60–400 Hz at 140–180 dB SPL) used to dislodge particulate fouling from boilers, ESPs, baghouses and process vessels.