Method and device for making charcoal in array kilns and extracting flue gas

Abstract

The invention discloses a method and a device for making charcoal in array kilns and extracting a flue gas. The method comprises the following steps of: according different flue gas components generated in different temperature ranges in the process of charcoal making, arranging charcoal kilns corresponding to different flue gas components to form charcoal kiln groups; conveying raw materials to each charcoal kiln, and burning the raw materials to obtain finished charcoal; and forming kiln holes between the two charcoal kilns, and extracting flue gas with different components through the kilnholes. The device comprises the charcoal kiln groups (2) formed by two or more charcoal kilns (1); the two charcoal kiln groups (2) are arranged back to back to form a charcoal kiln group pair (3); and the kiln holes (4) are formed between the charcoal kilns (1) arranged back to back in the charcoal kiln group pair (3). The method and the device have the advantages of convenient extraction of theflue gas with different applications from different temperature ranges in the process of the charcoal making, high purity of the extracted flue gas and convenient installation of extraction equipment, shorten burning time, reduce the loss of the raw materials and improve the charcoal yield by over 30 percent.

Description

technical field [0001] The invention relates to a method and device for making charcoal, in particular to a method and device for making charcoal and extracting flue gas in an array kiln. Background technique [0002] The process of firing charcoal is to put wood or wood raw materials in a charcoal kiln, heat the wood or wood raw materials in the charcoal kiln, and make the wood or wood raw materials pyrolyze under the condition of incomplete combustion to obtain charcoal. [0003] At present, the charcoal kilns used all belong to the single-kiln firing method, that is, after the wood or wooden raw materials are placed in the charcoal kiln, the preheating process from the beginning to the final firing of the finished charcoal, and the final cooling process are all completed in one charcoal kiln. . In the existing charcoal production method, the loss of raw materials is large during the heating process, and the charcoal yield is low. In the existing charcoal production meth...

AI Technical Summary

Problems solved by technology

The existing charcoal production method has a large loss of raw materials and a low charcoal yield during the heating process

The flue gas produced in each stage of the charcoal production process in the existing charcoal production method is mixed together, which is not convenient for the classification and extraction of the flue gas produced in the charcoal production process

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