Gasification combustion device for tobacco flue-curing

Abstract

The invention provides a gasification combustion device for tobacco flue-curing. The gasification combustion device comprises a combustor (1), a feeding hopper (2), a feeding pipe (3) and a feeding screw conveyer (4), wherein the combustor (1) is arranged in a combustion chamber (24); the combustion chamber (24) communicates with a heat-dissipating device (21) arranged in a tobacco flue-curing room; a secondary oxygen distributor (9) is arranged above the combustor (1); the secondary oxygen distributor (9) comprises a gasification combustion chamber (10) and an oxygen distribution chamber (11); oxygen distribution holes (12) are formed between the oxygen distribution chamber (11) and the gasification combustion chamber (10); the oxygen distribution chamber (11) communicates with an oxygensupply fan (16) through an oxygen distribution pipe (13); and the secondary oxygen distributor (9) is mounted on the combustor (1) trough supporting legs (14). By adoption of the gasification combustion device provided by the invention, fuel gas generated from fuel gasification and tar in the fuel gas can be completely combusted, the tar can be prevented from entering a heat-dissipating pipe of the tobacco flue-curing room and gathering on the wall of the heat-dissipating pipe, the efficient and smooth heat-dissipating effect can be guaranteed, and the flue-cured tobacco quality can be improved.

Description

technical field [0001] The invention relates to a biomass gasification device, in particular to a gasification combustion device for tobacco leaf curing. Background technique [0002] Tobacco leaf is the main project of governments at all levels to promote poverty alleviation in rural areas. The cost and quality of tobacco leaf curing are related to the economic benefits of tobacco farmers. The key to improving the quality of tobacco leaf curing and reducing the cost of curing lies in the energy-saving efficiency and damage intensity of the baking equipment. And the adaptability of a variety of fuels. For a long time, the tobacco leaf baking equipment of tobacco farmers has gradually changed from indigenous coal furnaces to electric baking and biomass gasification burners. The cost of using electric baking is high, which reduces the profits of tobacco farmers. The existing biomass burning device has at least the following defects: (1) The burning ash cannot be automatically...

AI Technical Summary

Problems solved by technology

The existing biomass burning device has at least the following defects: (1) The burning ash cannot be automatically removed, which may easily cause airway blockage and backfire, resulting in potential safety hazards; (2) Gasification and combustion are not complete, not only the thermal efficiency is not high, In addition, incompletely burned tar and other substances may enter the heating pipe and adhere to the inner wall of the heating pipe, which will affect the curing effect and the quality of tobacco leaves.

"A Combustion Device for Automatic Feeding, Slagging and Ash Removal" disclosed in a Chinese patent (201720654806.1), which can realize the automatic removal of burning ash, but the gas converted in the combustion chamber is directly burned on the combustion plate, and the flame is soft It can be seen that the converted gas is incompletely burned. For example, when used for tobacco leaf baking, the completely burned tar and other substances enter the heating pipe, which affects the heat dissipation effect of the heating pipe, and can seriously cause blockage of the heating pipe.

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