Earth kiln for firing bamboo charcoal

Abstract

An earth kiln for firing bamboo charcoal, relating to the technical field of bamboo charcoal production, comprising an earth kiln body formed by a plurality of firing chambers arranged in sequence from left to right, and the firing chamber includes an inner kiln body and an outer kiln located outside the inner kiln body There is a gap between the inner kiln body and the outer kiln body, and the gap is evenly filled with river sand. The top of the firing chamber is provided with a first smoke exhaust port that can be opened or closed. The kiln door is blocked by refractory bricks. There is a flue gas channel above the kiln body. The flue gas channel spans the top of each firing chamber and is located in front of the first smoke exhaust port. The firing chambers are all connected to the flue gas channel. , the flue gas channel is provided with a general smoke exhaust port, and the flue gas channel is also provided with a plurality of second smoke exhaust ports that can be opened or closed. The number of the second smoke exhaust ports is the same as the number of firing chambers Above each firing chamber. The invention has good sealing performance, and at the same time, it can timely and effectively remove the water vapor and smoke inside it.

Description

technical field [0001] The invention relates to the technical field of bamboo charcoal production, in particular to an earthen kiln for firing bamboo charcoal. Background technique [0002] Bamboo charcoal is a solid product obtained after thermal decomposition of drying, pre-carbonization, carbonization and other processes under high temperature conditions without oxygen or limited oxygen supply. It has special adsorption capacity and large specific surface area. my country is a big producer of bamboo charcoal. Earth kiln firing is the main production method of firing bamboo charcoal in my country. [0003] In the process of burning bamboo charcoal in a disposable fuel earth kiln, first set the fuel burning point in the earth kiln, then pile up the raw materials around the fuel burning point, ignite the fuel, and wait for the temperature in the earth kiln to rise to a certain range. The kiln door and other parts are sealed, and the next time is the process of gradually tran...

AI Technical Summary

Problems solved by technology

Usually, the existing earthen kilns set a small number of smoke outlets in order to improve the airtightness, resulting in that the water vapor and smoke in the earthen kiln cannot be removed in a timely and effective manner during the critical period, and excessive water vapor and smoke gather in the soil. The kiln will directly affect the quality of bamboo charcoal carbonization

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