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Type And Drying Design Of Veneer Dryers

     Veneer can be natural drying, but also available drying room or dryer drying, natural and indoor drying is only in the production of small factories to use, the general use of various types of dryers, because the latter production efficiency is high.Veneer Dryers

     Veneer dryer There are many, there are two main types, roller-type transmission single plate dryer and mesh belt conveyor single plate dryer. The drying effect mainly depends on the circulation mode of hot air in dryer. The cycle of hot air has two broad categories, longitudinal and transverse. Longitudinal cycle, that is, hot air along the length of the dryer. Because of the long cycle of hot air, the loss of wind speed along the way, and the uneven wind speed in the dryer, so, the drying effect is poor, this type of machine has been rarely used.Veneer Dryers

     In the transverse circulation dryer, the split air flow is parallel to the plate surface through and vertically sprayed on the veneer surfaces of two, in which the airflow perpendicular to the single board surface spraying the best effect. This is based on the veneer thickness of small, large surface area, can be high temperature and fast drying characteristics of steam radiator to heat air to 150 ℃ above, by the ventilator and nozzle to make the hot air quickly vertical spray to the veneer surface. Veneer Dryers

    By the impact of jet, destroying the critical layer of veneer surface and saturated water vapor layer, overcoming the friction resistance between airflow and veneer surface, so as to enter the heat, the discharge of moist air is quite rapid, so as to achieve the goal of high temperature and fast drying of veneer.Veneer Dryers

    Therefore, this type of dryer is currently the most widely used veneer drying equipment. Domestic veneer, veneer board, plywood production enterprises in the veneer drying process, most of the use of mesh belt dryer and tumble dryer, but there are dry veneer surface cracks and deformation of the shortcomings, the main reason is the drying method using non-contact drying, low drying efficiency, high energy consumption, dry quality is poor, and the roller pressure continuous veneer drying dryer to some extent to solve these problems Veneer Dryers