Biomass dry gasification centralized air supply system

Abstract

The invention relates to a biomass dry gasification centralized air supply system. The system consists of a gasification furnace, a dust removing system, a cooling purification system and a transmission and distribution system, wherein the dust removing system comprises a negative pressure vortex dust remover, a primary self-cooling dust remover and a secondary self-cooling dust remover; the cooling purification system comprises a primary coarse purification tower, a secondary coarse purification tower, an indirect cooling tower, an air-water separation tower, a purification tower, a vinegar tar tank, a circulating water tank, a circulating water pump, a fine purifier and a Roots blower; and the transmission and distribution system comprises a compatibilization transmission and distribution main pipe network, a branched air cylinder and a check valve. The biomass dry gasification centralized air supply system has the characteristics that: 1, the gasification furnace can continuously run; 2, sewage is not generated in the production process; 3, the system is not provided with a huge air holder; 4, the fuel gas quality is high; and 5, the equipment utilization rate is high, the construction investment is small and the centralized air supply system is energy-saving and environmentally-friendly.

Description

technical field [0001] The invention relates to a large-scale biomass dry gasification centralized gas supply system, in particular to a biomass dry gasification centralized gas supply system capable of continuous production, no sewage generated during the production process, and no need to install huge gas storage cabinets system. Background technique [0002] Biomass gasification centralized gas supply technology is an emerging technology that has emerged in my country in the past ten years, and has been widely used in rural new energy construction and other fields. The technology involves four systems of gasification, cooling, purification, transmission and distribution. The gasification system is a device for converting solid biomass into combustible gas. At present, domestic biomass gasification furnaces cannot operate continuously due to high temperature in the furnace, easy deformation and damage of the grate, and inability to discharge the ash accumulated in the fur...

AI Technical Summary

Problems solved by technology

Regardless of whether the transmission and distribution system is a low-voltage transmission and distribution process or a medium-voltage transmission and distribution process, each gasification station must be equipped with a huge gas storage tank. Gas cannot be produced continuously, and a large amount of gas must be stored for use when the gas is not produced. Therefore, the gas storage cabinet must be large enough to meet the user's requirements. Not only the investment is huge, but also frequent maintenance is required during use.

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