Steam distribution structure for active carbon production

Abstract

The invention relates to a steam distribution structure for active carbon production. The structure comprises steam distribution bricks, channel bricks and cross beams, wherein at least one way of steam distribution bricks is arranged in the width direction of a carbonization chamber, each way of steam distribution bricks comprises a plurality of steam distribution bricks and is arranged in the length direction of the carbonization chamber; channel bricks are arranged side by side on two sides of the corresponding steam distribution bricks and connected with the wall of the carbonization chamber; the cross beams are used for supporting the steam distribution bricks and the channel bricks; a material channel is formed between the steam distribution bricks and / or between the steam distribution bricks and the channel bricks, a concave steam cavity is formed in the bottom of each steam distribution brick, the steam cavities of the steam distribution bricks in the same way of steam distribution bricks are communicated to form a steam channel, and a steam inlet is formed in one end of the steam channel. According to the steam distribution structure, a cavity filled with high-temperaturesteam is formed in the center of the carbonization chamber, steam supply pressure is increased, the high-temperature steam can penetrate a semi-coke layer and is fully contacted with high-temperaturesemi-coke to complete activation reaction, the problems about uniform distribution of the high-temperature steam and ensuring of smooth running of materials are solved, and the overall strength requirement is met.

Description

technical field [0001] The invention relates to the technical field of activated carbon production, in particular to a steam distribution structure for activated carbon production. Background technique [0002] The production process of activated carbon mainly includes chemical activation method and physical activation method. The chemical activation method uses granular blue carbon as raw material, mixes chemical activator (zinc chloride, phosphoric acid or potassium hydroxide) and blue carbon evenly, activates at a certain temperature for a specified time, and can be obtained after cooling. product. The chemical activation method has low raw material utilization rate, strict requirements on equipment, high energy consumption and large consumption of activator, so it is rarely used in industrial production. The physical activation method is to dry the semi-coke and activate it with carbon dioxide or water vapor at high temperature for a certain period of time to obtain th...

AI Technical Summary

Problems solved by technology

At present, the production capacity of activated carbon produced by using semi-coke is low. The semi-coke needs to be heated above 850°C to react with high-temperature water vapor. The heating process consumes a lot of heat energy, the energy utilization rate is low, and the processing capacity is small.

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