A biomass gasification combustion boiler system

Abstract

The invention relates to the technical field of combustion devices, in particular to a biomass gasification combustion boiler system. The biomass gasification combustion boiler system comprises a boiler and a biomass gasifier which is used for supplying gasified fuel to the boiler. The biomass gasifier is connected with the boiler through a gas pipeline, a feed port is formed in the upper portion of the biomass gasifier, a gas storage chamber, a reaction chamber and an ash storage hopper are sequentially arranged inside the biomass gasifier from top to bottom, heating fire grates are arranged between the reaction chamber and the ash storage hopper, and the feed port is communicated with the reaction chamber through a material conveying pipeline. The gas storage chamber of the biomass gasifier is separated from the reaction chamber of the biomass gasifier, and therefore the gasified fuel stored in the gas storage chamber can be continuously supplied to the boiler to be combusted, the boiler can not be stopped in the combustion process even when materials are fed into the biomass gasifier, parameters of steam produced in the boiler are kept stable, and the continuous production process can be ensured.

Description

technical field [0001] The invention relates to the technical field of combustion equipment, in particular to a biomass gasification combustion boiler system. Background technique [0002] Industrial boiler is an important thermal power equipment, which can provide steam, power generation or gas supply. my country is one of the countries that produce and use the most boilers in the world today. Most of the traditional boilers are made of coal, fuel oil and natural gas. Mainly, my country's industrial boilers consume nearly 400 million tons of coal annually, which not only causes a large amount of energy consumption, but also releases a large amount of SO in the combustion process. 2 , CO, NO and other toxic and harmful gases, and incompletely combusted particulate dust will also be released into the atmosphere along with the flue gas, causing serious environmental pollution. With the change of energy supply structure and the increasingly stringent requirements for energy cons...

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Problems solved by technology

[0002] Industrial boiler is an important thermal power equipment, which can provide steam, power generation or gas supply. my country is one of the countries that produce and use the most boilers in the world today. Most of the traditional boilers are made of coal, fuel oil and natural gas. Mainly, my country's industrial boilers consume nearly 400 million tons of coal annually, which not only causes a large amount of energy consumption, but also releases a large amount of SO in the combustion process. 2 , CO, NO and other toxic and harmful gases, and incompletely combusted particulate dust will also be released into the atmosphere along with the flue gas, causing serious environmental pollution. With the change of energy supply structure and the increasingly stringent requirements for energy conservation and environmental protection, people continue to research and develop Industrial boilers using clean biomass energy as combustion raw materials

[0003] The biomass gasification system uses biomass pyrolysis and gasification technology to process waste crops (straw, straw, wheat straw, bean stalks, chaff), weeds, algae, wood chips and other biomass materials in the gasifier. Oxidative combustion, reduction, and thermal decomposition reactions can convert low-calorific value solid raw materials into high-calorific gas fuels. The use of biomass gasification systems to provide fuel sources for industrial boilers can effectively solve the problem of low combustion efficiency and high pollution in existing industrial boilers. However, in the existing biomass gasification combustion boiler system, the biomass gasification system cannot continuously provide a large amount of stable fuel supply for industrial boilers. During the process of feeding or unloading the biomass gasification system, The combustion process of the boiler is often interrupted, which cannot guarantee the continuous operation of the production process and cannot meet the requirements of use

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