Biomass gasification furnace and gasification operation method thereof

Abstract

The invention relates to a biomass gasification furnace and a gasification operation method thereof, and belongs to the technical field of energy conservation equipment. A drying area, a cracking area, an oxidation area, a reduction area and an ash chamber are arranged in a reaction furnace body sequentially from top to bottom; a Y-shaped cracking gas isolating flow dividing device is arranged inthe oxidation area; an oxidation area round tangential air supply device is arranged in the Y-shaped cracking gas isolating flow dividing device; an upper movable furnace bar is arranged at the bottomof the Y-shaped cracking gas isolating flow dividing device; a lower movable furnace bar is arranged at the bottom of the reduction area; a reduction area round tangential air supply device is arranged at the top of the reduction area; the ash chamber is formed by coiling three layers of heat-resistant steel plates and then is welded with upper and lower flanges, so that the gasification reactionis higher in controllability and more flexible in adjustment, the gasification working condition can be effectively improved, the gasification reaction is more uniform and complete, the problem of waste of heat caused by too high reaction temperature of the gasification furnace can be avoided, the heat efficiency of the reaction furnace is improved, the gasification efficiency is improved, the content of tar in fuel gas is reduced and the quality of the fuel gas is improved.

Description

technical field [0001] The invention belongs to the technical field of energy conversion equipment, and relates to a gasification furnace and a gasification operation method, in particular to a biomass gasification furnace and a gasification operation method thereof. Background technique [0002] The grim reality of energy and environmental issues is forcing human beings to find a sustainable development path that coordinates population, economy, society, resources and the environment. Among them, the development of new and renewable energy has become a top priority. Biomass includes animals, plants, microorganisms and their derivatives, excretion, and metabolic organic matter. Biomass energy is a form of energy stored in organisms as chemical energy directly or indirectly through photosynthesis. It is the only energy that can be stored and transported. of renewable resources. Biomass can be regenerated in a short period of time. The total amount of biomass generated global...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the common problems of energy conversion and low utilization efficiency in existing biomass gasifiers, unstable system operation, and poor gas quality, especially the high content of solid particles and tar in the gas, which makes the post-treatment system complicated and difficult. In order to avoid the secondary pollution of the environment, a biomass gasifier and its gasification operation method are proposed, which can make the gasification reaction more controllable and more flexible, and can effectively improve the gasification conditions and make the gasification reaction more uniform Adequate, can avoid the waste of heat caused by the high reaction temperature of the gasifier, improve the thermal efficiency and gasification efficiency of the reactor, reduce the tar content in the gas, and improve the quality of the gas

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