Tail gas treatment method and device for salt extraction facility, sulfur warehouse, and sulfur-melting kettle of coking plant

Abstract

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.

Description

technical field [0001] The invention relates to a waste gas treatment technology of a coking plant, in particular to a method and a device for treating tail gas of a salt extraction facility, a sulfur storehouse, and a sulfur melting kettle. Background technique [0002] The coking plant will produce harmful tail gas in the production of salt extraction, which needs to be treated; the sulfur warehouse will emit pungent smell and harmful gas when stacking and transferring materials, which needs to be treated; the sulfur melting kettle will emit pungent odor and harmful gas during production, It needs to be treated, and if it is not treated, the emission will pollute the air and affect personal health. Environmental protection requirements need to be treated to meet the standards. The current manufacturers generally collect the exhaust gas and then discharge it. There is a problem with this treatment method. It is impossible for any equipment to be completely correct. Exhaust ...

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Problems solved by technology

[0002] The coking plant will produce harmful tail gas in the production of salt extraction, which needs to be treated; the sulfur warehouse will emit pungent smell and harmful gas when stacking and transferring materials, which needs to be treated; the sulfur melting kettle will emit pungent odor and harmful gas during production, It needs to be treated, and if it is not treated, the emission will pollute the air and affect personal health. Environmental protection requirements need to be treated to meet the standards. The current manufacturers generally collect the exhaust gas and then discharge it. There is a problem with this treatment method. It is impossible for any equipment to be completely correct. Exhaust gas treatment; moreover, the so-called up-to-standard discharge can only mean that the discharge of pollutants below a certain standard will actually produce polluting discharge

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