A kind of far-infrared tobacco heating tunnel furnace and control method thereof

Abstract

The invention discloses a far-infrared smoke flake heating tunnel furnace and a control method thereof, comprising a far-infrared furnace body (1), a far-infrared heating element (2), a conveying mesh belt (3), a roller (4), a frequency conversion The motor (5), the blanking baffle (6), and the observation window (7) are characterized in that: the far-infrared furnace body includes a top wall and two side walls, a plurality of far-infrared heating elements are installed on the top of the furnace body, and the furnace body side is provided with a plurality of far-infrared heating elements. The wall is provided with an observation window, the roller is connected with the frequency conversion motor through the transmission element, and two blanking baffles are arranged on the outer side of the conveying mesh belt, and a groove structure is formed between the conveying mesh belt and the two blanking baffles. The blanking baffle is outside, and the blanking baffle is located on the inner side of the side wall of the furnace body. The invention realizes that the temperature of the tobacco chips can be increased without changing the moisture content of the tobacco chips, the temperature difference with the environment in the feeding cylinder of the feeding machine can be reduced, the temperature fluctuation of the hot air in the feeding cylinder can be reduced, and the internal environment of the drum can be accelerated from unstable The state reaches a steady state, thereby improving the stability of the outlet moisture and outlet temperature.

Description

technical field [0001] The invention relates to the technical field of tobacco manufacturing and processing, in particular to a far-infrared tobacco sheet heating tunnel furnace and a control method thereof. Background technique [0002] The leaf feeder is an important equipment in the silk production line. Its function is to feed the tobacco sheets to meet various requirements such as flavor enhancement, moisturizing, and mildew resistance. Since the tobacco sheets need to be heated during the feeding process, the tobacco cells are It absorbs the feed liquid better, so to judge whether the feed liquid really enters the tobacco leaves, rather than floating on the surface, the compliance and stability of its temperature become the key indicators. [0003] For increasing the temperature of the tobacco chips, the "hot air + steam compensation" mode of the feeder is generally used to achieve the purpose, relying on the hot air system of the feeder to blow hot air into the cylind...

AI Technical Summary

Problems solved by technology

However, in the actual production process, this mode of adjusting the temperature of the tobacco sheet also has corresponding disadvantages: mainly in the following aspects: First, the temperature difference between the incoming tobacco sheet and the hot air in the barrel of the feeding machine is large, and the hot air and steam in the barrel are used based on the heat conduction method. Heating the smoke sheets requires high matching requirements for the flow rate and moisture of the incoming smoke sheets, which can easily cause severe fluctuations in the temperature of the hot air, resulting in unstable outlet moisture and low fault tolerance; the second is the "hot air + steam compensation" There are disadvantages in the mode. In the "steam compensation" mode, the steam directly injected into the barrel always contains moisture, which will directly cause the outlet moisture of the smoke sheet to increase.

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