Tobacco stalk and tobacco stem gasification tobacco drying series device

Abstract

The invention relates to a tobacco stalk and tobacco stem gasification tobacco drying series device which indirectly cools fuel gas by using air and has no secondary water pollution. The device comprises an electrical cabinet, a tobacco drying room and an underground pond, wherein one side of the electrical cabinet is provided with a feeding machine, a gasification furnace is arranged below a discharging port of the feeding machine, and a gas outlet of the gasification furnace is communicated with a tar cracker; a fuel gas outlet of the tar cracker is communicated with a dust remover, a fuel gas outlet of the dust remover is communicated with a fuel gas cooler, and a fuel gas outlet of the fuel gas cooler is communicated with a fuel gas screen; a fuel gas outlet of the fuel gas screen is communicated with a filter, a gas outlet of the filter is communicated with a Roots vacuum pump, and a gas outlet of the Roots vacuum pump is communicated with a liquid seal; a gas outlet of the liquid seal is communicated with a gas holder, a gas outlet of the gas holder is communicated with a burner, and the burner is located in the tobacco drying room; and the fuel gas cooler is provided with aheat-exchange gas inlet pipe, an inlet of the heat-exchange gas inlet pipe is located in the underground pond, an outlet of the heat-exchange gas inlet pipe is communicated with an air heater, and anair outlet of the air heater is communicated with a heat radiator.

Description

technical field [0001] The invention relates to a biomass gasification and baking equipment, in particular to a series device of tobacco stems and tobacco stems gasification and flue-cured tobacco. Background technique [0002] At present, tobacco leaf curing and redrying basically use coal as fuel, and individual tobacco leaf redrying enterprises use tobacco stem gasification heat gas instead of coal to supply heat energy for boilers; some curing houses use tobacco stems mixed with crushed corn straw to produce Tobacco leaves are cured with cold gas. The national standard stipulates that the temperature of cold gas should not be higher than 35°C, while the temperature of hot gas can be as high as 500°C. When changing from hot gas to cold gas, water spraying is generally used to directly cool the gas. The cooling water of cold gas must bring When it comes to secondary pollution sources, the heat energy of hot gas at more than 400 degrees is wasted. Some enterprises and rese...

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Problems solved by technology

[0002] At present, coal is basically used as fuel for tobacco leaf curing and redrying, and some tobacco leaf redrying enterprises use tobacco stem gasification hot gas instead of coal to supply heat energy for boilers; There are also some curing barns that use tobacco stems mixed with crushed corn stalks to produce cold gas-cured tobacco leaves. The national standard stipulates that the temperature of cold gas should not exceed 35°C, while the temperature of hot gas can reach as high as 500°C, and the temperature changes from hot gas to cold gas. Water spraying is generally used to directly cool down gas. Cold gas cooling water will inevitably bring secondary pollution sources, and the heat energy of hot gas at more than 400 degrees is also wasted. Some enterprises and research institutes have carried out new research and development of using cold water to indirectly cool gas The technology of cooling gas without water has not yet appeared

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