Thermal regeneration furnace for waste powdered activated carbon

Abstract

The invention relates to a thermal regeneration furnace for waste powdered activated carbon, and belongs to the technical field of chemical industry. The thermal regeneration furnace is used for the thermal regeneration (100 to 850 DEG C) of waste powdered activated carbon obtained by refining and decolorizing medicines and fine chemicals. The thermal regeneration furnace is formed by serially connecting a plurality of dry distillation trays and activation trays, which are provided with rotary stirrers, wherein the dry distillation trays are vertically arranged on the activation trays; and waste powdered carbon is continuously and quantificationally added, indirect heating is adopted for dry distillation, the activation is that high-temperature activation gas is generated by using water gas generated in the thermal regeneration process and an oxygen-enriched combustion improver, and over-heated water vapor is doped and taken as activation gas for direct contact activation, organic matter in the waste carbon can be completely decomposed and removed through dry distillation and activation in an innocent manner, the waste powdered carbon can be generated, and the original adsorption performance and the original adsorption indexes are restored. The thermal regeneration of the waste powdered carbon is a most effective technical means for realizing the cyclic utilization of industrial waste powdered carbon, environmental pollution caused by inappropriately disposing the waste powdered carbon which is taken as garbage, and also ensures that powdered carbon resources are recycled; and the thermal regeneration also has a relatively high economic benefit.

Description

Technical field [0001] The invention relates to a thermal regeneration furnace for waste powder activated carbon, which belongs to the field of chemical technology equipment and is used for thermal regeneration of waste powder activated carbon after decolorization and refining of medicine and fine chemical products. Background technique [0002] For a long time, all kinds of powder activated carbon have been used for one-time use. The waste powder activated carbon after decolorization and refining of pharmaceutical and fine chemical products is either landfilled or used as garbage or as a fuel substitute, which brings serious environmental pollution to the society. Both powdered activated carbon and granular activated carbon can be regenerated by heat to decompose the adsorbed organic matter harmlessly. After pickling and washing, the regenerated powdered activated carbon can restore the same adsorption performance and various indicators as the new powdered activated carbon. ...

AI Technical Summary

Problems solved by technology

However, many tons of industrial waste powdered activated carbon in our country are reduced to waste every year. Not only have they not been recycled, but they have also brought pollution to the society.

The raw material of powdered activated carbon is wood or sawdust. One ton of powdered activated carbon consumes 5 to 10 tons of wood. Powdered activated carbon is used for one-time use.

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