A kind of biomass gasification furnace ash discharge system

Abstract

The invention discloses an ash discharge system of a biomass gasification furnace, which sequentially includes an ash channel system, an ash fall system, an ash collection system and an ash output system from top to bottom. The ash channel system is inside the furnace body, The ash fall system, ash collection system and ash output system are at the bottom of the furnace; the ash passage system is a dish-shaped grate; the ash fall system is on the lower side of the ash passage system and can be rotated to open and block The ash channel makes the ash drop; the ash collection system is below the ash drop system, and the ash output system is connected with the ash collection system. The disc-shaped grate has uniform air flow, increased ash falling channels, increased ash falling cross-section, more uniform ash falling, and more uniform slump of the fixed charcoal combustion layer. The ignition loss rate is reduced, and the physical and chemical properties of ash residue are more stable. The combustion speed and the gasification speed of RDF can be effectively increased, thereby increasing the unit consumption of biomass waste.

Description

Technical field [0001] The present invention relates to a gasifier, and in particular to a biomass gasification furnace outflow. Background technique [0002] Biomass waste gasification application technology has been developing history in my country for nearly 30 years, has not been commercially available: low thermal value and hybrid nature. Aiming at gasification application techniques, the gas is low, and the thermal solution is poor. [0003] Biomass waste includes urban domestic garbage, urban sludge, farm-forestry waste, medical waste, industrial organic waste, etc. The equivalent is more than 8 times more equivalent to all human energy. The above-mentioned waste is multi-stage crushed-wind-selected-magnetic selection-screening to particle grade 1 cm or less, adding a biothermatic heat removal agent (the core technology of the additive is to improve the thermal solution of biomass waste) It is fully stirred and pressed into biomass derived fuel RDF (refer to RDF), which ha...

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Problems solved by technology

[0014] The purpose of the present invention is to overcome the disadvantages of the background technology, such as the small ash fall cross-sectional area and the single ash fall channel, which cause the ash fall to be crowded, and the ash fall to be locally fast and locally slow; Overcome the problem of excessive heavy metal content in the ash and slag in the background technology; overcome the problem that the ash production in the background technology is difficult to be observed, and the combustion situation of the furnace cannot be judged from the ash production; The shortcoming that the dried dust has a great impact on the human body is to provide a new type of biomass gasifier ash and grate system

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