Furnace body of activated carbon activation furnace

Abstract

A furnace body for an activated-carbon activation furnace, which relates to the field of activated-carbon production devices. A burning passage (6) communicating with the inside of the furnace body is disposed in the furnace body. Air is introduced in the burning passage (6). At least two material passages (5) are formed in division of the furnace body, the material passages (5) are disposed along the length direction of the furnace body, and steam is introduced in each material passage (5). The furnace body comprises an outer cylinder (1). At least two sections of branch bin supporting members (4) are disposed along of the circumferential direction of the inner wall of the outer cylinder (1) to form the burning passage (6) in a surrounding manner. Adjacent two sections of branch bin supporting members (4), the inner wall of the outer cylinder (1) and the outer wall of the burning passage (6) define one material passage (5) in a surrounding manner. The safety of an activated-carbon production process can be improved to a certain extent, the furnace body can stably work for a long time, and the quality and the productive capacity of produced activated carbon can be greatly improved.

Description

technical field [0001] The invention relates to the field of activated carbon production equipment, in particular to a furnace body of an activated carbon activation furnace. Background technique [0002] At present, the production methods of activated carbon at home and abroad are mainly divided into two categories, namely: physical method and chemical method. The physical method is to first put the raw materials (high-quality coal, fruit shells, charcoal, etc.) in a closed furnace body for smoldering and carbonization, and then pass in an appropriate amount of water vapor to activate to obtain activated carbon. The chemical method is to impregnate raw materials (usually sawdust) with chemicals (phosphoric acid, zinc chloride, etc.), and then carbonize and activate them in an air-circulating furnace to obtain activated carbon. At present, many manufacturers use physical methods to produce activated carbon. [0003] At present, the equipment for producing activated carbon ...

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Problems solved by technology

[0004] However, the existing activation furnaces for the production of activated carbon by physical methods generally have certain technical defects: (1) The safety hazard is relatively large: due to the inconsistency of the carbonized material composition after heating, the change in the amount of gas produced will cause the instability of the gas pressure, the sudden change of the air pressure It will cause deflagration of high-temperature gas, causing safety hazards such as burning at the seal of the furnace body, especially for rotary activation furnaces, the sealing performance of the rotary joint is relatively poor, once burning occurs, it is easy to cause safety accidents

(2) The production capacity and quality of activated carbon are low: because the furnace body cannot be well sealed in the area, the combustible gas precipitated by the heating of the material is easy to burn directly in the area where the material is placed, resulting in a large increase in the amount of carbonized material or activated carbon ablation, reducing the The production capacity and quality of activated carbon increase the consumption of raw materials and energy; at the same time, the existing activation furnace has a limited feeding amount per unit time, and the production capacity of activated carbon cannot be further significantly improved, and the added raw materials are always piled up in the lower part of the activation furnace due to gravity. Difficult to fully contact with steam, resulting in poor activation effect and reduced quality of activated carbon

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