Cylindrical high-temperature biomass hot blast furnace

Abstract

The invention relates to a cylindrical high-temperature biomass hot blast furnace. The cylindrical high-temperature biomass hot blast furnace comprises a cylindrical heat exchanger and a cylindrical hearth section. The cylindrical heat exchanger is perpendicularly installed on the upper portion of the cylindrical hearth section and is a convective heat transfer section, and the cylindrical hearth section is a radiative heat transfer section. A biomass combustor assembly is installed at the bottom of the cylindrical hearth section. A slurry removing door is installed on the left side of the bottom of the cylindrical hearth section. Electromagnetic vibrators are installed on the cylindrical hearth section and the cylindrical heat exchanger respectively. The hot blast temperature of the cylindrical high-temperature biomass hot blast furnace can reach 450DEG C, ash removing inside a hearth and ash removing of smoke wall surfaces of the heat exchanger are carried out together, namely, ash cleaning is carried out in the hearth and ash removing rooms and corresponding furnace doors are reduced, and therefore the cylindrical high-temperature biomass hot blast furnace is compact in structure. Because the electromagnetic vibrators are installed, ash accumulated in a heat exchanging pipe and ash accumulated on heat exchanging surfaces can be automatically removed in the operation process, permanent and efficient heat transmission can be kept, and ash forming and scale forming can be effectively avoided. The volume and structure of the hearth of the furnace are designed according to the principles of heat transfer theories so that heat transfer amount of the radiation section is large, metal heat transfer surface temperature and fault rate are low, and the cylindrical high-temperature biomass hot blast furnace is long in service life.

Description

technical field [0001] The invention relates to the technical field of biomass burning hot blast stoves, in particular to a cylindrical high-temperature biomass hot blast stove, which can be used in the field of high-temperature setting and drying of setting machines and coating machines in textile and printing industries. Background technique [0002] At present, under the background of energy shortage all over the world, biomass burning furnaces have developed rapidly in small hot air drying and hot water supply. In recent years, the Chinese government has stepped up environmental protection law enforcement, and at the same time strongly supported the utilization of biomass energy. Therefore, the application of various biomass combustion furnaces in my country has been vigorously developed. However, there are also some problems to be solved urgently in the application of biomass combustion furnace. for example: [0003] 1. Fouling and fouling of heat exchange tubes [0...

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Problems solved by technology

[0005] 2. Burner burnt out

[0007] 3. The heat exchange tube is broken

The reason is that when the fuel burns in the furnace, the heat energy emitted by the radiation is very large, but pure air is a transparent body, and it is difficult to accept this part of the energy. In most square furnaces, the metal heat transfer surface has a high temperature on the side receiving the radiation energy.

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