Tar gasification circulating device and gasification system

Abstract

The invention relates to the technical field of solid fuel gasification and gasification collection utilization and provides a tar gasification circulating device. The device comprises a separator which is used for being connected with a gasification furnace, a tar gasification pipe and a filter device. A first liquid inlet, a first liquid outlet which is used for being communicated with a drying chamber of the gasification furnace and a second gas outlet which is used for being communicated with a gasification chamber of the gasification furnace are formed in a tar gasification channel, and a first flue gas outlet which is formed in a flue gas channel is connected with the filter device. Tar generated by the gasification furnace can be recycled into the gasification furnace, so that the tar is subjected to repeated splitting decomposition. The separator is provided with a first air inlet, a first air outlet and a first liquid drainage hole, the first air inlet is used for being communicated with the drying chamber and a pyrolysis chamber which are arranged in the gasification furnace, the first air outlet is used for being connected with the gasification chamber which is arranged in the gasification furnace, and the first liquid drainage hole is communicated with the first liquid inlet. Mixed gas generated in the gasification furnace is filtered and separated by the separator, the moisture in the mixed gas is removed, and the calorific value of the fuel gas can be increased.

Description

technical field [0001] The invention relates to the technical field of solid fuel gasification and gasification collection and utilization, in particular to a tar gasification cycle device and a gasification system. Background technique [0002] Garbage is solid waste generated in human daily life. Due to the large amount of discharge, complex and diverse components, and polluting properties, it needs to be disposed of properly. Otherwise, it will pollute the environment, affect environmental sanitation, and waste resources. The treatment of garbage is to make the garbage harmless. The most widely used treatment methods in today's society are landfill and incineration. The effect of landfill is very slow and occupies a large area, which is easy to cause secondary pollution to groundwater; incinerators and gasification furnaces can effectively reduce the amount of garbage, but the air pollution caused by incineration and gasification of garbage is a serious problem. big prob...

AI Technical Summary

Problems solved by technology

Wet method can be divided into spraying method and bubble blowing method. The tar in the biomass gas is taken away with water. The water washing method is easy to entrain liquid mist in the process of removing tar. The equipment, liquid recovery and circulation device are huge, and will also produce Secondary pollution problem; the dry method uses adsorbents to separate the tar in solid fuel gasification, and then conducts secondary combustion and other gas disposal. Although secondary pollution of water is avoided, the filter medium needs to be replaced frequently, which cannot Continuous work increases labor intensity and workload. Therefore, tar removal technology has become a bottleneck in the development of solid combustion gasification technology

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