Biomass combustion device and method

Abstract

The invention belongs to a biomass combustion device and method. The biomass combustion device includes a furnace, a raw material inlet and a side air inlet are formed in one side of the furnace, a bottom air inlet is formed in the bottom of the furnace, a dust outlet and a dust inlet are formed in the other side of the furnace, the raw material inlet is connected with a feeding unit, and the dustoutlet is connected with the inlet of a cyclone separator; and the discharging opening of the cyclone separator is connected with the dust inlet, and the gas phase outlet of the cyclone separator isconnected with a flue gas desulfurization system through a screen super-heater unit, a flue shaft unit, a bag type dust remover and an induced draft fan. The biomass combustion device has the advantages that the structure is simple, the design is reasonable, stable running for a long period of time can be achieved so as to produce high quality steam, and the steam is used for power generation, andthe economic benefits are produced while the solid waste is treated for enterprises.

Description

technical field [0001] The invention belongs to the technical field of biomass boilers, and in particular relates to a biomass burning device and method. Background technique [0002] Biomass mainly includes furfural slag, sawdust residue, and solid waste after utilization of straw. The treatment of substances is mostly carried out by incineration in small boilers, but the biomass raw materials have the defects of light weight, low calorific value and not easy to be utilized. There are the following defects when processing through small boilers: 1. The operation is unstable; 2. It cannot Generate stable steam; 3. Due to the small size of the boilers used, it is not possible to focus on exhaust dust removal, desulfurization, and denitrification. Most enterprises generally use direct discharge, which seriously pollutes the environment; 4. Large-scale boilers have not been successfully operated. Experience; the above defects directly lead to the inability to fully utilize biom...

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Problems solved by technology

[0002] Biomass mainly includes furfural slag, sawdust residue, and solid waste after utilization of straw. The treatment of substances is mostly carried out by incineration in small boilers, but the biomass raw materials have the defects of light weight, low calorific value and not easy to be utilized. There are the following defects when processing through small boilers: 1. The operation is unstable; 2. It cannot Generate stable steam; 3. Due to the small size of the boilers used, it is not possible to focus on exhaust dust removal, desulfurization, and denitrification. Most enterprises generally use direct discharge, which seriously pollutes the environment; 4. Large-scale boilers have not been successfully operated. Experience; the above defects directly lead to the inability to fully utilize biomass, which not only fails to bring economic benefits to the enterprise, but also occupies a large amount of space for a long time and cannot be handled

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