Physical method energy-saving cleaning technique for manufacturing active carbon

Abstract

The invention relates to a technology for manufacturing activated carbon by a physical method of energy saving and cleaning, which includes the processes of mixing kneading and plating or coal blending and briquetting, airing strip, carbonization, screening, activating, screening and packaging as well as packaging after screening material and making into powder activated carbon to traditional milling, coal powder and tar. The technology adjusts and adds the processes: air with coal powder in the milling workshop, air with Vf (organic volatile) generated in the process of mixing kneading, plating and drying, pitch smoke generated in the process of charring, parts of smoke in a SLEP activated-stove, smoke in a multifunction activated-stove, coal gas out of a coal gasification device or other fuel are sent into a heating system of gas fixing, mixed burning and purifying for burning; through a waste heat boiler, generated heat loading gas generates steam for activating technology to use; tail gas is used for generating coal gas and drying material; after been heated, parts of smoke of the SLEP activated-stove is supplied for the multifunction activated-stove. The technology of the invention increases material yield, power source application which does not pollute the environment.

Description

technical field [0001] The invention relates to a process for making activated carbon from coal, in particular to an energy-saving and clean manufacturing process of activated carbon by a physical method. Background technique [0002] Activated carbon is a kind of porous material with excellent adsorption properties. It is often used as an adsorbent in the process of industrial purification and chemical recovery. Due to the stable chemical properties of activated carbon, it is an inert material, so activated carbon is often used as a supported catalyst. Existing activated carbon adopts anthracite and bituminous coal as basic raw materials, and its production process follows the steps below: [0003] a, first wash anthracite and bituminous coal; [0004] b. Store and dry the washed anthracite and bituminous coal; [0005] c. The anthracite and bituminous coal after batching are crushed and pulverized respectively; [0006] d. Stir and knead the pulverized coal powder and b...

AI Technical Summary

Problems solved by technology

[0010] The existing activated carbon manufacturing method produces high-temperature and high-pressure gas in the process of material processing, which makes the material easy to spontaneously ignite, causes burning loss, and reduces the yield. A large amount of harmful gas is emitted into the atmosphere by natural cooling method, causing environmental pollution. Heat is also lost during cooling, and when entering the next step of the process, new energy needs to be burned to increase heat, resulting in energy waste; at the same time, a large amount of coal dust will be generated during material processing, which not only wastes coal, but also causes environmental pollution. further to improve

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