Water-cooling fire grate type biomass gasification furnace

Abstract

The invention relates to the technical field of biomass gasification, and discloses a water-cooling fire grate type biomass gasifier which comprises an ash passing channel, a water tank is fixedly installed at the bottom of the ash passing channel, an ash discharging hopper is fixedly installed at the upper end of the ash passing channel, and an energy reducing device is arranged on the inner side wall of the ash passing channel. A turntable is fixedly mounted in the middle of the energy reducing device. The energy reducing device is arranged in the ash passing channel, gravitational potential energy of ash is used as power for rotation of the fan blades to reduce the gravitational potential energy of the ash, meanwhile, the contact area of the fan blades and the ash is increased through the fan blades and the through holes of the fan blades, and heat of the ash passes through the eccentric rod and the heat conduction ring, the heat is used for the expansion effect of gas in the gas containing cavity to reduce the initial temperature of ash, the water impact phenomenon is reduced by reducing the potential energy and temperature of downward impact of the ash, the temperature of water vapor is reduced, and the impact phenomenon in the water tank is reduced.

Description

technical field [0001] The invention relates to the technical field of biomass combustion, in particular to a water-cooled grate type biomass gasifier. Background technique [0002] The water-cooled grate-type biomass gasifier can burn and gasify all combustible substances that use biomass as raw materials to produce combustible gases that can be used for combustion. Biomass raw materials include straw, waste gas trees, cattle and sheep manure, etc. Biomass The gasification treatment of material energy is green and environmentally friendly, and the raw materials are inexhaustible. It is a relatively green and environmentally friendly way of producing combustible gases. [0003] In the existing biomass gasification furnace, ash and slag will be generated at the bottom of the gasification furnace after gasification and combustion. The ash removal device used is a wet slag discharge device with a water seal structure. A sealed water tank is installed under the bucket, and then...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the use of the existing grate-type biomass gasifier proposed in the background technology, the present invention provides a water-cooled grate-type biomass gasifier, which has the functions of reducing water vapor generation and improving ash loss. The advantages of falling efficiency and avoiding the floating accumulation of ash and slag solve the problems raised in the above background technology about the direct falling of ash and slag and the floating accumulation of ash and slag caused by the high temperature of the ash and slag, and the reduction of ash and slag falling efficiency caused by excessive water vapor

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