Activated carbon production process

Abstract

The invention relates to an activated carbon production process. The production process comprises the following steps: S1, screening of raw materials, S2, activation: putting the clinker into a boiler, adding an activating agent to carry out anaerobic atmosphere activation for 8-10 hours, and raking, controlling and regulating in the operation process, S3, grinding and screening, S4, acid picklingand rinsing: adding a certain amount of water and 32%-36% hydrochloric acid into a charging barrel, diluting to about 5% solution, opening an ultrasonic device below the charging barrel, boiling withsteam for 3-4 hours, cooling, draining, injecting clear water, at the moment, not stopping the ultrasonic device, draining the water, and taking out the material, S5, drying: putting the materials into a drying furnace for drying, and obtaining activated carbon after drying treatment, and S6, screening and packaging. Ultrasonic waves generated by the ultrasonic device are used for cavitation of awater body in the charging barrel, heavy metal on the activated carbon is effectively separated out, the purity of the activated carbon is greatly improved, and the product quality is improved.

Description

technical field [0001] The invention relates to the technical field of activated carbon, in particular to an activated carbon production process. Background technique [0002] Activated carbon is a specially treated charcoal. Organic raw materials (husks, coal, wood, etc.) are heated in the absence of air to reduce non-carbon components (this process is called carbonization), and then react with gas, and the surface is Erosion, resulting in a microporous structure (this process is called activation). Since the activation process is a microscopic process, that is, the surface erosion of a large number of molecular carbides is point erosion, so the surface of activated carbon has countless fine pores. The diameter of micropores on the surface of activated carbon is mostly between 2 and 50nm. Even a small amount of activated carbon has a huge surface area. The surface area per gram of activated carbon is 500 to 1500m2. Almost all applications of activated carbon are based on t...

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Problems solved by technology

[0004] The above-mentioned prior art scheme has the following defects: However, after the activated carbon is pickled, the heavy metals in it are precipitated and attached to the surface of the activated carbon, and after the used pickling solution is discharged, clean water is injected into the barrel. Drain on the top of the barrel, stop the water when the suspended solids flow from the drain, and then drain the clear water before drying

In this process, because the density of heavy metals is higher than that of water, it is difficult to remove the heavy metals attached to the surface of activated carbon, which leads to a large amount of heavy metals attached to the surface of activated carbon, which affects the adsorption performance of activated carbon and reduces the quality of the product.

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