Chemical waste gas treatment equipment

Abstract

The invention relates to chemical waste gas treatment equipment which comprises a first water tank, a second water tank and a chemical treatment tank, wherein a first outlet of the first water tank is connected with a chemical treatment inlet of the chemical treatment tank; a chemical treatment outlet of the chemical treatment tank is connected with a second inlet of the second water tank; a second outlet of the second water tank is communicated with a gas inlet of a waste gas treatment tower; a spraying layer, a dehydration layer and an activated carbon layer are sequentially arranged inside the waste gas treatment tower; a first inlet, the chemical treatment inlet and a second inlet of the first water tank are all extended to the positions under the liquid level; partitioning plates are arranged inside the first water tank, the second water tank and the chemical treatment tank; the partitioning plates are positioned under the liquid level; small holes are formed in the partitioning plates; the first inlet, the chemical treatment inlet and the second inlet are all inserted to the positions below the partitioning plates. By adopting the partitioning plates with the small holes, large bubbles can be cut into small bubbles, so that a gas can be sufficiently reacted and absorbed inside a liquid, and moreover the bubbles can be distributed in a large area without stirring, so that the equipment is beneficial to absorption of harmful gases by the liquid.

Description

technical field [0001] The invention relates to the field of chemical waste gas treatment, in particular to a chemical waste gas treatment equipment. Background technique [0002] Chemical waste gas refers to the poisonous and harmful gas discharged from chemical plants in chemical production. Chemical waste gas often contains many types of pollutants, complex physical and chemical properties, and different toxicity, which seriously pollutes the environment and affects human health. The composition of chemical waste gas produced by different chemical production industries varies greatly. For example, the waste gas produced by the chlor-alkali industry mainly contains chlorine, hydrogen chloride, vinyl chloride, mercury, acetylene, etc., and the waste gas produced by the nitrogen fertilizer industry mainly contains nitrogen oxides, urea dust, carbon monoxide, ammonia, sulfur dioxide, methane, etc. At present, in exhaust gas treatment equipment, the intake pipe is directly c...

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Problems solved by technology

At present, in exhaust gas treatment equipment, the intake pipe is directly connected to the liquid surface to absorb harmful substances in the exhaust gas. Since the gas introduced by the exhaust pipe usually enters in the form of bubbles, the harmful gas on the surface of the bubbles can be absorbed by the liquid. The harmful gas inside the bubble is not absorbed and discharged directly, and the exhaust gas only reacts with the liquid around the exhaust pipe. The liquid around the exhaust pipe absorbs the harmful gas and is saturated and no longer absorbs. This will not achieve the purpose of absorbing harmful gas. At present, the use of The best measure is to add a stirring device to make the liquid flow and ensure that there is enough reaction liquid around the exhaust pipe. However, this method not only needs to waste electricity, but also can cause the gas dissolved in the liquid to precipitate again, and it does not achieve the absorption of harmful gases. the goal of

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