Using Insulation Humidity Ceiling to Improve the Quality of Maryland Tobacco Curing
Hebei Funna I&E Co.,Ltd , https://www.topconveyorrollers.com
Maryland smoke has more stringent environmental conditions for air temperature and humidity, and requires more technical measures such as harvesting time and curing methods. Inappropriate environmental conditions and harvesting and drying methods can easily lead to the presence of smoke or moldy tobacco. Poor quality. The measurement data of the temperature and humidity recorder shows that the temperature of the cover heat-insulated air-conditioned room is 1 to 2°C higher than the standard temperature of the top cover of the cement tile, and the relative humidity of the air-enclosed room is 5% to 10% lower, and the heat preservation and moisturizing time is lower. Long, favorable Maryland smoke withered discoloration, tobacco leafing quality is better. At the same time, the combination of two-section dry reinforcement sheds on the ropes to provide better technical results, can effectively reduce the tobacco with blue and rotten phenomenon, improve the ratio of about 10% of the upper and middle smoke. Insulation and humidity control ceiling adopts PVC-U (other similar materials can also be used) double-sealed semi-transparent structure of the house cavity, using the roof auxiliary temperature-increasing insulation and moisture-absorbing and moisture-retaining layer to ensure the relative humidity and temperature in the airing room. . Due to the temperature and humidity of the airing house, it mainly comes from the sun and the natural environment. At noon, the direct sun roof temperature of the airing room is too high (easy to burn, smoke, smoke) double roof insulation effect. At night, the temperature is too low (it is unfavorable for the conversion of the internal components of the tobacco leaves). The double-layer roof serves as a heat-insulating effect. In combination with other factors, the overall heat insulation effect of the air-enclosing room will be greatly improved. Moisture-absorbing and moisturizing layer can play the role of absorbing moisture under the condition of high humidity in the smoking canopy (the basic principle is to use the several fluff on the paper to absorb the tiny water particles of water in the air), and it can moisturize under the condition of low humidity. The effect; At the same time can also prevent the formation of water droplets on the board and drop on the tobacco affect the quality. Compared with the single-layer structure, the device has an overall increase in heat insulation, heat preservation, and humidity control, so that the modulation environment of the air-cured tobacco is changed, thereby improving the intrinsic chemical composition and appearance color of the tobacco leaf, increasing the income of the tobacco farmers and the cigarettes. It is beneficial for industry to provide quality raw materials.
Maryland tobacco curing system must focus on solving problems such as low temperature and excessive relative humidity. Under the influence of low temperature, rainy weather, and low temperature during the modulation period, the design of the insulated air-jacket of the upper cover can increase the longitudinal ventilation holes. Use the hot air circulation in the solar radiation shed to warm the airing room. The internal wall/column adds several vertical air ducts, forming a semi-sealed hot air circulation system with the ceiling, changing the hot air circulation path into a long-range circulation, so that the temperature difference between the high and low parts of the air-entraining room is reduced.