The invention discloses a
tail gas treatment method for a salt extraction facility, a
sulfur warehouse, and a
sulfur-melting kettle of a
coking plant, which comprises the following steps: collecting the
waste gas generated in salt extraction production, the
waste gas emitted from the materials of the
sulfur warehouse, and the
waste gas emitted from the sulfur-melting kettle in production of the
coking plant by a collection device, introducing into the lower part of a closed
pickling spray tower via a pipeline and a fan,
pickling, introducing the pickled gas into the lower part of the closed alkali washing
spray tower, alkali washing, introducing the gas subjected to alkali washing to the gas inlet of the lower part of a closed
water washing spraying
tower by the outlet of the upper part ofan alkali washing
spray tower and pipelines,
water washing, transporting back the gas subjected to
water washing to the collection points of salt extraction, the sulfur warehouse, and the sulfur-melting kettle by the fan, and finally circulating the waste gas for returning and utilization, to achieve zero
discharge of
tail gas treatment. The entire process and device structure are reasonable, inthe case of energy saving,
coking plant resources are utilized maximally, and
tail gas generated by the salt extraction facility, the devices, the sulfur warehouses, and the sulfur-melting kettles iscollected and treated centrally, realizing circulation treatment and energy saving and consumption reduction, without discharging.