A fixed experimental furnace under normal pressure generally uses block like anthracite or bituminous coal and coke as raw materials, and uses a mixture of steam or steam with air as a gasifying agent to produce gasification gas with carbon monoxide and hydrogen as the main combustible components.

The gasification reaction of solid fuel is divided into five layers according to the characteristics of the production process in the furnace. The drying layer - at the top of the fuel layer, the fuel comes into contact with cold coal, and the water in the fuel is evaporated; Dry distillation layer - below the dry layer, due to temperature conditions similar to those of a dry distillation furnace, the fuel undergoes cold decomposition, releasing volatiles and other dry distillation products into coke. The coke is then transferred from the dry distillation layer to the gasification layer for cold chemical reactions; Gasification layer - the main area of the gasification process in the furnace, where the carbon and gasification agent in the fuel undergo intense chemical reactions. Due to different reaction conditions, the gasification layer can also be divided into an oxide layer and a reduction layer.

Based on the chemical reaction principle during the gasification stage of the experimental furnace, it is hoped to form conditions conducive to steam decomposition and carbon dioxide reduction reactions. Therefore, it can be considered that increasing the thickness and temperature of the gasification layer is beneficial, and appropriately reducing the steam flow rate is also beneficial. In the chemical reaction between carbon and steam, measures such as increasing the thickness of the gasification layer and reducing the airflow speed can accelerate the reaction rate, increase the content of carbon monoxide, and improve the steam decomposition rate.

Zhuzhou Yuanhang Industrial Furnace Technology Co., Ltd. is a new type of technology enterprise that specializes in providing complete solutions for various heat treatment equipment. We mainly produce lithium battery negative electrode graphitization furnaces, high-temperature graphitization furnaces, graphitization furnaces, sintering furnaces, silicon carbide sintering furnaces, carbonization furnaces, vacuum sintering furnaces, etc., providing customers with high-tech, high-quality, and cost-effective heat treatment equipment.