Gas nozzle of stalk etherealization heating stove for curing tobacco

Abstract

The invention discloses a gas burner of a straw gasification heating furnace for flue-cured tobacco. The gas burner comprises an external pipe, an inlet pipe and a combustion pipe which run through the inside of the external tube, the inlet end of the inlet pipe is fixedly connected with the external pipe by a first support plate, a gas inlet channel is arranged between the external pipe and the inlet pipe, the outlet end of the inlet pipe is arranged at the inside of one end of the combustion pipe and is fixedly connected with the combustion pipe by a second support plate, a gas inlet channel is arranged between the combustion pipe and the inlet pipe, and the other end of the combustion pipe is provided with a head cover on the position of the axis of the combustion pipe, intervals are arranged between the head cover and the end part of the combustion pipe, the combustion pipe is fixedly connected with the external pipe by a third support plate, and a gas inlet channel is arranged between the combustion pipe and the external pipe. The structure causes the gas to be fully burnt, especially, the arrangement of a convex head cover causes the reflection effect to be better; the head cover can also prevent other components from damages after the combustion gas being ejected out, and can cause the combustion heat to be rapidly spread to periphery, thus achieving better heating effect.

Description

technical field [0001] The invention relates to a jet combustion device, in particular to a gas nozzle used for heating during the tobacco leaf curing process. Background technique [0002] In order to transform the fresh tobacco leaves produced in the field into the tobacco leaf raw materials required by the cigarette industry, the fresh tobacco leaves harvested in the field must first be modulated, and the tobacco leaves are mostly prepared by heating and dehydration. The heat sources include sunlight, stove fire, electric heat, etc. . Among them, flue-cured tobacco mainly adopts furnace heating and baking technology. The main method is to set up a set of heating and heat exchange equipment outside the smoke chamber of the barn, with a coal-fired stove underneath and a heat exchanger on the top. There is a circulating fan on the heat exchanger to blow the emitted heat into the smoke chamber. Tobacco curing provides heat. With the rapid growth of my country's economy, th...

AI Technical Summary

Problems solved by technology

However, the gas nozzle that usually uses combustible gas for flame injection and combustion is generally composed of a metal tube, but the gas nozzle composed of this metal tube is not suitable for the flue-cured tobacco industry, because the flue-cured tobacco industry needs to burn the gas in the cooling box to achieve heating in turn. The purpose of heating the room air, so the burning time is relatively long in actual use, and the ordinary metal pipe is easy to burn out, and the combustible gas is injected along the direction of the metal pipe, which is easy to cause damage to the heat dissipation box. This kind of unidirectional combustion and Injection is also not conducive to heating the air in the cooling box to achieve the purpose of heating the entire cooling box

That is to say, a large amount of heat generated during the combustion of combustible gas is easy to burn out the gas nozzle, and there are also disadvantages such as insufficient gas combustion and low heat exchange efficiency.

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