A rotary gasification combustion device and gasification combustion process

Abstract

The invention discloses a rotary gasification combustion device and gasification combustion process with the device applied. The rotary gasification combustion device comprises a fixed frame and a rotary cylinder installed on the fixed frame and provided with a drive mechanism; the interior of the rotary cylinder is a reaction chamber filled with solid-phase bed materials and used for combustion; the rotary cylinder is provided with a gas-phase inlet / outlet and a solid-phase inlet / outlet which are communicated with the reaction chamber. The characteristics of mechanical turbulent mixing in a rotary furnace and enhanced mass transfer and heat transfer of the bed materials in a fluidized bed are combined, and the solid-phase bed materials are evenly mixed with fuel and collide with the fuel continuously under the driving of rotary motion, so that heat transfer media around fuel particles are enhanced greatly, and the gas-solid phase reaction effect is improved greatly. Accordingly, the unit volume work capacity of a reactor is improved and the utilization rate of space of the reactor and the economical efficiency of equipment are improved.

Description

technical field [0001] The invention relates to the field of thermochemical reactor equipment, in particular to a rotary gasification combustion device and a gasification combustion process. Background technique [0002] As a special type of combustion furnace, the rotary kiln is currently mainly used in the fields of cement calcination and waste pyrolysis incineration treatment. Processes such as calcination and incineration require sufficient contact between solid-phase raw materials and air. The rotary furnace reactor can better organize the mixing and contact of air and solid-phase substances, and can promote the heat exchange process between flue gas and fuel, furnace and fuel. , has good mixed heat transfer characteristics. Due to the use of rotary mechanical disturbance, this type of reactor has excellent raw material adaptability and can adapt to materials of various particle sizes and textures. [0003] The Chinese patent document with the publication number CN203...

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Problems solved by technology

However, a high-quality fluidized organization has strict requirements on the pressure head and flow rate of the fluidized medium, and it is also necessary to carefully consider the particle size and specific gravity of the bed material particles. During operation, there must be high energy consumption and high operating requirements. It is difficult to miniaturize, and usually involves a series of problems such as the need for efficient gas-solid separation and material return and feeding

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