Dryer

Internal rotary dryer transformation is very important. Dryer internal transformation investment is not large, relatively simple, but you must understand the principles of the dryer, drying conditions and type of material supporting the dust, combined with daily lessons learned to develop a viable rehabilitation programs. General transformation method steps: (a) rotary dryer plus of center X-shaped lifting plate, reduce heat empty, extended residence time, increase the heat exchange efficiency, reduce the loss of hot gas. Installation parts are available from the middle of the dryer (also later) sequentially to the head end installation 3-5 group lifting plate, the separation distance 0.5 ~ 1m, each group of six X-shaped lifting plate. But near the head end can not be installed within 3m (just put the material moisture due to high viscosity, low temperature, prone to adhesion), otherwise it will affect the overall drying efficiency. (B) rotary dryer will feed end of the auger blades removed, replaced by a triangular rib, available 6mm thick steel plate, short height and angle side feed end ring with height and weld length right-angled edge length of 800mm, and drying the inner tube weld, solder ring spacing 50mm, naturally formed a cone feeder. Its role is to slow down the flow rate of the material in the hot zone, and fully absorb the heat, increase the heat exchange rate, and the front end of the dryer can reduce temperature to avoid burn barrel and gauge rings. (Iii) transformation of the feed tube angle, they do not affect the feed, the lower the barrel as far as possible to improve, the upper end of the dryer is not appropriate gauge ring contact, but not too long extending into the interior of the cylinder can be controlled down material point from the gauge ring within 200mm. No material to prevent the front, high temperature burn-gauge ring and cylinder, pipe cutting leavened raised, not only conducive to the flow of hot gas and prevent burn leavened tube material is formed naturally falling curtain material, with the high temperature gas is directly contacting the heat exchange rate. (Iv) the transformation of the tail with a low temperature drying barrel length of about l / L-shaped lifting plate 3 is generally L-shaped lifting plate is 90 ° vertical fixed, followed by Zhou circle the angle 30,90,120 welding. Thus by rotating dryer, lifting plate in a different space height lifting large distribution area, the heat exchange rate.