Process for preparing activated carbon for air-raid shelters

Abstract

The invention discloses a process for preparing activated carbon for air-raid shelters. The process comprises the following steps: finely selecting raw materials, preparing a first mixed liquid, preparing a second mixed liquid, preparing a third mixed liquid, soaking, calcining, preparing a fourth mixed liquid, performing secondary soaking, and performing secondary calcining. The process has the advantages that the produced activated carbon for air-raid shelters has the advantages of being high in strength, good in adsorption property, large in adsorption capacity, small in ash content, rapidin adsorption velocity, long in protection time, good in protection effect, and the like, has very good effects in industrial waste gas treatment, prevention of toxic and harmful gases, and the like,and particularly has excellent adsorption properties which are comparable by common granular carbon for benzene, hydrocyanic acid and chloroethane in waste gases; meanwhile, due to the product, defects of conventional coal columnar carbon are solved, the field of activated carbon is further widened, defects of the coal columnar carbon are further alleviated, and a relatively excellent product is provided for waste gas treatment, toxic and harmful gas prevention, and the like.

Description

technical field [0001] The application relates to activated carbon, in particular to a preparation process of activated carbon for civil air defense engineering. Background technique [0002] As a very good filter medium, activated carbon has been applied in many fields, especially in the field of environmental protection, whether it is to purify water or air, it has become the current protagonist. At present, the main preparation process of activated carbon for civil air defense projects in the market is that the product quality of the main formed carbon is not very good, the adsorption capacity is limited, and it does not have a good adsorption capacity for special adsorbates, that is, toxic and harmful gases. [0003] The preparation process of activated carbon for air purification in the prior art does not take into account the water capacity of activated carbon in terms of selection principles. The adsorption amount of activated carbon to pharmaceuticals depends on the ...

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Problems solved by technology

[0003] The preparation process of activated carbon for air purification in the prior art does not take into account the water capacity of activated carbon in terms of selection principles. The adsorption amount of activated carbon to pharmaceuticals depends on the size of its water capacity. If the effect is not achieved, unnecessary waste will be caused if the amount of medicament added exceeds the water capacity; in terms of medicament preparation, the types and ingredients of the medicament in the prior art are relatively single, and the protection time is insufficient, and there are fewer groups that can react; There is no secondary impregnation process, the agent is not sufficiently loaded; the added agent is not fully cured, which makes the later protection time insufficient and the effect is not good