Biomass boiler with waste heat utilization device

Abstract

The invention discloses a biomass boiler with a waste heat utilization device. The biomass boiler comprises a boiler body, an air feeding device and a cold water inlet; the boiler body comprises a boiler wall, an air bag, a reheater, a water cooling wall pipe and a fire grate; the fire grate is located on the lower portion of the boiler wall, a slag outlet is arranged below the fire grate, and thewater cooling wall pipe is located over the fire grate; the air feeding device is internally provided with an air feeding chamber, the air feeding chamber is arranged on the left side of the boiler wall, and the upper portion of the right end of an air feeding chamber is provided with two or more sets of air feeding pipes; and a smoke exhaust pipe is connected with a smoke processing device, thetop of the smoke processing device is provided with a connection pipe, the upper portion of the connection pipe is provided with a waste heat recycling device, and the waste heat recycling device is internally provided with a water box, an impeller, a speed reducer, a spiral rod and a smoke exhaust channel. According to the biomass boiler, biomass fuel can burn more sufficiently during burning through the air feeding device, accordingly, the utilization rate of the biomass fuel is increased, the waste heat recycling device can recycle waste heat of the boiler, and the energy utilization rate of energy is increased.

Description

technical field [0001] The invention relates to the field of biomass equipment, in particular to a biomass boiler with a waste heat utilization device. Background technique [0002] At present, the boiler is a kind of energy conversion equipment. The energy input into the boiler can be chemical energy, electric energy, etc. After being converted by the boiler, it outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy, which can be used in power stations and ships. and locomotives, so that it plays an irreplaceable role in both industry and life. The current boilers mostly use coal as the main fuel, which has the problems of large consumption of fossil energy, insufficient combustion, low heat transfer efficiency and environmental pollution. serious problem. my country is rich in straw energy, but the utilization rate is low, and in most cases the straw is directly burned, causing serious environmental pollution. Some biomass boile...

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Problems solved by technology

[0002] At present, the boiler is a kind of energy conversion equipment. The energy input into the boiler can be chemical energy, electric energy, etc. After being converted by the boiler, it outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy, which can be used in power stations and ships. and locomotives, so that it plays an irreplaceable role in both industry and life. The current boilers mostly use coal as the main fuel, which has the problems of large consumption of fossil energy, insufficient combustion, low heat transfer efficiency and environmental pollution. serious problem

my country is rich in straw energy, but the utilization rate is low, and in most cases the straw is directly burned, causing serious environmental pollution. Some biomass boilers have not yet adopted waste heat recovery devices, resulting in a great waste of energy. At the same time, some biomass Boilers sometimes have insufficient biomass combustion, which reduces energy utilization

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