Absorption tower capable of purifying DMC thermal oil furnace smoke

Abstract

The embodiment of the present invention discloses an absorption tower for purifying the flue gas of a DMC heat-conducting oil furnace. The absorption tower for purifying the flue gas of a DMC heat-conducting oil furnace includes: an adsorption chamber, which is arranged at the bottom of the absorption tower, and a first-stage activated carbon bed is installed in it and the secondary activated carbon bed, the air inlet pipe is inserted into the side wall of the adsorption chamber; the alkali spray chamber is connected to the adsorption chamber through the gas outlet of the adsorption chamber, and a rotary table and a spray pipe are installed on the top; the recovery liquid chamber is discharged through the alkali chamber The acid spray room is connected to the alkali spray room through the gas outlet of the alkali room, and a horizontal sprinkler head is installed in it, and the top and bottom are respectively provided with a flue gas outlet and an acid room outlet. The liquid port and the smoke detector are connected with an exhaust pipe with one end arranged in the smoke outlet. The absorption tower for purifying DMC heat-conducting oil furnace flue gas of the present invention is equipped with three sets of systems of alkali absorption, acid absorption and clean water cleaning, with high absorption efficiency, simple construction and equipment installation, and few pipelines in the tower, which effectively prevents the large area of ​​pipelines corrosion.

Description

Technical field [0001] The invention relates to a DMC absorption device, in particular to an absorption tower for purifying the flue gas of a DMC heat-conducting oil furnace. Background technique [0002] DMC (Dimethylcyclosiloxane) is a chemical substance that is mainly used for ring-opening polymerization into silicone oil and silicone rubber with different degrees of polymerization. The production of DMC usually takes waste silica gel as raw material, pulverizes, adds sulfuric acid to heat the reaction, and then rearranges, refines, filters, and finally produces DMC packaging and storage. A set of DMC production system will be equipped with a heat-conducting oil furnace, using coal or biomass such as straw, rice husk, bark, etc. as fuel, will release flue gas containing particulate matter, nitrogen oxides and sulfur dioxide, which cannot be directly emitted. The flue gas absorption towers are generally tall, and it is not easy to construct and repair. There are many parts and...

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Problems solved by technology

[0003] The technical problem to be solved by the embodiments of the present invention is that the commonly used flue gas absorption towers are generally high, difficult to build and maintain, and there are many internal parts and pipes in the tower, and the joint spraying of acid and alkali in one room will lead to large parts such as pipes. For the problem of scale corrosion, an absorption tower for purifying flue gas of DMC heat transfer oil furnace is proposed

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