Drying Equipment roller drum dryers (also known as drum dryer, rotary dryer, etc.) is a contact heat conduction within the drying machine. During the drying process, the heat generated by the inner wall of the drum is transmitted to the outer wall thereof drum dryer through drum attached to the outer wall surface of the food material to be dried, the material on the evaporation of moisture, drying is a continuous production machinery. For higher water content materials import dried using an air inlet temperature of 300 degrees, the volume of the dryer evaporation rate 5kg / m3 / h thermal efficiency of 30% -50%; If the gas inlet temperature of 500 degrees, the volume was evaporated rate of 35kg / m3 / h; the thermal efficiency of 50% -70%. So for the processing of ore, sand sparkle, coal, over phosphorus bucket drum drier with calcium sulfate material directly flue gas burner drum dryer equipment, gas fuel can be used coal, oil, natural gas, liquefied petroleum gas, etc. . 2) the material is not permitted, such as handling contaminated hot air drum dryers, high temperature needs, you can use our new product gas furnace for heat carrier drum dryer structure, the product energy saving, high thermal efficiency. Such as high local environmental requirements, want energy efficiency, health using gas furnace will be the best choice. Energy efficiency gas furnace burner than saving at least 20% more than in the artificial greatly save a lot, usually gas furnace has a staff to operate and does not require non-stop coaling, another gas furnace can with the stop with the use of up to 10 days does not work, the next time you can continue to use. Conventional direct heating of rotary drum dryer dried material in direct contact with the hot air, the way to convective heat drying. According to the direction of flow of hot air and the material between the stream and into and counterflow. Air outlet temperature of the dryer and streaming in general should be above the material outlet temperature 10 ~ 20 ℃, in counter-flow air outlet temperature is not clearly defined, but designed with 100 ℃ as the outlet temperature is reasonable. Cylinder diameter is generally 0.4 ~ 3 m, the length ratio of the cylinder and the cylinder diameter of generally 4 to 10. The peripheral speed of the dryer is 0.4 ~ 0.6m / s, the air speed within 1.5 ~ 2.5m / s range. Hot air drum dryer, drum dryer, the latest technology offered by Changzhou Changhai Drying Equipment Co., Ltd .. Changzhou Changhai Drying Equipment Co., Ltd. (www.cndry.cn) strong, credible, in Changzhou, Jiangsu drying equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the sea dry and you work long into the brilliant, for a better future!