A conveying net cleaning device for ensuring the quality of tobacco leaves

Abstract

The invention belongs to tobacco re-drying production process equipment and particularly relates to a conveying net cleaning device for guaranteeing tobacco quality. The cleaning device is structurally characterized in that a heat-insulation box covering a main conveying net is arranged in a drying zone of a tobacco dryer, the lower part of the heat-insulation box is connected with vacuum pressure controllers and temperature controllers and is further connected with superheated steam generators, steam outlets of the superheated steam generators are arranged in cleaning space at the lower part of a main conveying net nonworking surface, and a heat insulation plate is arranged between a main conveying net working surface and the main conveying net nonworking surface in the heat-insulation box. The device is high in cleaning efficiency, can clean the conveying net automatically while production and can guarantee the tobacco quality.

Description

Technical field [0001] The invention belongs to a tobacco leaf redrying production process equipment, and specifically relates to a conveying net cleaning device that guarantees the quality of the tobacco leaf. Background technique [0002] During the redrying process of tobacco leaves in the leaf roaster, the leaf roaster is mainly composed of three parts, namely the drying zone, the cooling zone and the moisture regain zone. The tobacco leaves are dried in the drying zone on the conveying main net, enters the cooling zone for cooling, and then enters the moisture regain zone to regain moisture. The drying zone is mainly to dry the tobacco leaves and remove insects. The drying zone is divided into a lower inlet air drying zone and an upper inlet air drying zone; the cooling zone cools the tobacco leaves to between 30° and 39°, and the tobacco leaves are most easily Moisture regain absorbs moisture; the moisture regain zone makes the tobacco leaves moist, which is easy to pack, ...

AI Technical Summary

Problems solved by technology

Tobacco leaves are dried and rehydrated on the conveying net. Due to the high temperature and upward wind in the drying area and rehydrated area of ​​the tobacco leaves (the hot air dries the tobacco leaves from top to bottom and the steam rehydrates the tobacco leaves from top to bottom), some leaves Tobacco leaves with a small area are compacted and pasted on the main conveying net. A brush roller is installed at the outlet of the leaf roasting machine to clean the conveying net. However, some tobacco leaves still adhere to the conveying net. This part of the tobacco leaves cannot be removed by the brush roller. After production, the tobacco leaves are piled up, and the more tobacco leaves are transported on the main net, the more the mesh of the main transport net is blocked, which seriously affects the drying and moisture regain effect of the tobacco leaves on the leaf roaster. If these tobacco leaves are not removed for a long time, they will become moldy, and affect product quality

The current method of cleaning and conveying the main network is basically that the cleaning personnel enter the baking machine to manually clean the holes one by one, and the premise is that there is no effective automatic method in the production process when the machine is shut down and not working to clean the mesh, so the cleaning efficiency of the existing conveying main network is very low

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