Design and construction method of whole bundle type straw gasification device

Abstract

The invention relates to a design and construction method of a whole bundle type straw gasification device. The module is suitable for road transportation and is used as a part of a modular system forstraw energy utilization, and only a small amount of installation workload is needed on an installation site for constructing a heat supply station and a small power plant. The vault of the refractory brick lining of the horizontally arranged combustion chamber is designed to be variable, and the heat output of the modular system can be improved by connecting a plurality of gasification modules.The whole bundle type straw gasification module comprises a whole bundle straw gasification chamber 1 and a rear gasification chamber 2, the whole bundle straw gasification chamber and the rear gasification chamber are separated by a rotatable fire grate 3, the gap width of the rotatable fire grate can be adjusted from the outside, and a charcoal ash bridge between the fire grates can be destroyedat any time through movement of the rotatable fire grate. Ash containing high-proportion charcoal can be produced by controlling air supply of the rear gasification chamber 2. The cooling water jacket 7 of the gasification module is formed by equidistantly welding the same bent metal plates in a staggered manner, so that the manufacturing process is simplified, and enough compressive strength isrealized.

Description

technical field [0001] The invention relates to a design and construction method of a bundled straw gasification device. The bundled straw gasification device adopts a modular structure and can be transported by road. The bundled straw gasification device can be used independently, and can also be connected with other bundled straw gasification devices to achieve high combustion power output. The gasification process of the whole bundle type straw gasification device is carried out in two steps, the integrity of the gasification process is improved, and the dust content in the flue gas is reduced. Background technique [0002] According to the patent WO2005 / 040680A1, when the whole bundle of straw bales is gasified, it is located on the air inlet arranged in the center, and the combustible smoke generated by gasification is sucked downward at an acceleration around the air inlet. Although this facilitates the combustion of carbon residues in the flue gas, ash is also sucked...

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Problems solved by technology

[0006] The known whole-bale straw gasification system is limited by the maximum allowable size and weight of road transportation, so it is impossible to increase the combustion power output by increasing the number of whole-bale straw gasification systems, and the known whole-bale straw gasification system The gasification system will contain a large number of flat or curved plates, so these flat or curved plates will complicate the manufacturing optimization design of the whole bale straw gasification system in terms of manufacturing process

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