Large Dynamic Gasification Combustion Biomass Burner

Abstract

The invention discloses a large-scale dynamic gasification combustion biomass burner, specifically relates to the technical field of renewable energy, including a horizontally arranged combustion chamber, a material conveying system and an air path system. The material conveying system includes a material box and at least one Feed auger, the discharge port of the lower part of the material box is connected to the input end of the feed auger, the output end of the feed auger is connected to the combustion chamber, and a water tank is arranged around the combustion chamber close to the outer wall, and the water tank is connected to a steam tank , the rotating shaft of the output end of the feed auger extends through the combustion chamber and is fixed on the casing of the combustion chamber through a bearing seat, the rotating shaft is a hollow shaft provided with holes, and one end of the hollow shaft is connected with a right blast pipe, The right blowing pipe is provided with a blowing port for blowing air into the hollow shaft, and the right blowing pipe communicates with the steam box through the steam pipe. The invention can fully burn the fuel, improve the efficiency of the combustion, and avoid the pollution of the environment by the harmful gas discharged from insufficient combustion.

Description

technical field [0001] The invention relates to the technical field of renewable energy, in particular to a large-scale dynamic gasification combustion biomass burner. Background technique [0002] Biomass pellet fuel is a biomass solid shaped fuel with high efficiency, cleanliness, easy ignition, CO 2 With the advantages of near-zero emissions, it can replace fossil fuels such as coal and is used in civil fields such as cooking and heating, as well as industrial fields such as boiler combustion and power generation. In recent years, it has developed rapidly in the European Union, North America, and China; another major advantage of biomass fuels It can be applied to small boilers, hot blast stoves, and heating stoves, and realizes automatic ignition and continuous automatic combustion by using a pellet fuel combustion device. During the combustion process of the burner, the interior of the burner is generally positive pressure combustion. If the feeding device of the burne...

AI Technical Summary

Problems solved by technology

During the combustion process of the burner, the interior of the burner is generally positive pressure combustion. If the feeding device of the burner has smoke entering the feeding auger or even the material box during the feeding process, it will cause combustion backfire, resulting in incomplete combustion, causing burner unstable

[0003] The combustion devices in the prior art all use an auger device to send the pellet fuel from the hopper into the combustion chamber. The Chinese patent application number 201410765744.2 discloses a biomass pellet fuel burner, including a shell, a feeding system, a burner and The main fan, in which the conveying system includes a hopper machine connected to the outlet of the hopper, the auger is connected to the auger through a vertically arranged blanking channel, and the output end of the auger is connected to the burner , this kind of burner uses the uniform auger for stirring, and then uses the pusher auger set up and down for buffer feeding, which can provide the burner with balanced fuel and make the burner burn evenly. The settings of the material auger, the burner and the pusher are all directly connected, so that the sealing of the combustion chamber, the return auger and the material box cannot be guaranteed, causing the danger of tempering

On the other hand, the combustion chamber structure inside the existing burner is generally a cavity with an air supply port. After the fuel is pushed in, it only burns statically in the cavity. There is no structure for mixing the fuel evenly, which may easily cause insufficient combustion. Environmental pollution problems such as large smoke and dust emissions

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