Combustion device, biomass fuel gasification direct-combustion boiler and incineration method

Abstract

The invention is applicable to the technical field of agriculture, and provides a combustion device, a biomass fuel gasification direct-combustion boiler and an incineration method. The combustion device comprises a furnace body forming a fuel combustion space; a pellet fuel hopper used for storing pellet fuel and forming uniform discharging arrangement; a porous feeding hole used for feeding thepellet fuel and preventing cold air from entering the furnace body; a fire grate arranged below the pellet fuel hopper and used for bearing and conveying materials so as to enable the fuel to be dried, distilled and combusted at the upper part of the fire grate; an air preheater communicating with the furnace body and used for feeding heated air into the furnace body and increasing the temperatureof combustible air; a slag remover arranged at the bottom of the furnace body at the tail end of the fire grate and used for conveying ash slags to the outside of the furnace body; and an electric control room for controlling all driving pieces to automatically operate. The combustion device, the biomass fuel gasification direct-combustion boiler and the incineration method provided by the invention have the advantage that biomass bales are directly gasified and combusted; and the application capacity is high, the sufficiency in combustion is realized, the heat exchange efficiency is high, the heat dissipation is reduced, and dust accumulation is avoided.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a combustion device, a biomass fuel gasification direct-fired boiler and an incineration method. Background technique [0002] Burning straw seriously pollutes the environment, causing low visibility around, affecting traffic, and even causing traffic accidents. Local governments have issued strict policies to prohibit farmers from burning straw, but they cannot stop farmers from burning straw. It is urgent to solve the problem of farmers' biomass straw disposal. At present, the main combustion method of biomass fuel is gasification combustion. The premise of gasification combustion is to make biomass into pellets. In the process of making biomass into pellets, a lot of costs are increased, which affects the enthusiasm for using straw fuel. The temperature of biomass straw direct combustion cannot be raised, the thermal efficiency is low, the combustion is unclea...

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a combustion device, aiming to solve the problem of low thermal efficiency

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