三筒烘干机是引进欧洲先进技术，由三个不同直径的同心圆筒彼此相嵌组合而成的。筒内装有不同角度和间距的扬料板和导料板，这种结构能够保证被烘干物料在重力作用下沿着螺旋的运动方向运动，在筒内保持足够的停留时间和充分的分散度，使被烘干物料在筒内与来自热风炉内的热气流进行充分的热交换。特殊的三筒结构，使内筒和中筒被外筒包围而形成了一个自身保温系统，内、中筒体表面散发的热量参与到外一层筒内物料的热交换，而外筒又处在热气流的低温端，所以筒体的散热面积和热能损失明显降低。该机用于烘干黄砂、矿渣、粘土、石英砂等原材料，广泛应用于干混砂浆、水泥、建材、玻璃、化工、铸造等行业。

　　The three-cylinder dryer adopts the advanced technology introduced from Europe; the dryer is assembled by three concentric-cylinders which halved together with different diameters. Feed aprons and stock guide plates with different angles and spacing are being equipped inside the cylinder, the structure can ensure that the material being dried runes along the direction of screwing under the impact of gravitation and keeps for a sufficient maintaining times and dispersity in the cylinder to make the material has sufficient heat exchange with the heat airflow from air heating furnace inside of the cylinder. The special three-cylinder structure makes the inner cylinder and median cylinder being surrounded by the outer cylinder to form a self contained thermal insulation system, the heat set out by inner and median cylinders surfaces participates the heat exchange of materials in outer cylinder, however the outer cylinder is being located in the low temperature end of the heat airflow, so the heat dissipation area and heat losses are being reduced significantly. The machine can be applied in drying of raw materials such as yellow sand, slag, clay, quartz sand etc., and widely used in industries such as dry mortar, cement, building materials, glass, chemicals, and casting etc.

　　◎ 三筒烘干机能充分利用余热，减少散热损失，增大热交换面积，使烘干机的单位容积蒸发强度得到大大提高，从而有效地提高了热能利用率，降低了能耗，使三筒烘干机的热效率得到较大幅度的提高。与相同效率的单筒烘干机相比，热效率提高50%左右，节约能耗一倍以上。

　　◎ 由于三筒烘干机筒体的长度是单筒烘干机的三分之一，基础面积比单筒烘干机节约60%左右，基础投资相应降低。

　　◎ 烘干机采用托轮与轮带的摩擦传动，传动功率低，降低了设备工作时的噪音。

　　◎ 烘干机筒体密封系统采用了微接触技术，密封效果更佳，减少了粉尘污染。

　　◎ 烘干机筒体和扬料板均采用合金钢板制造，比普通钢板寿命提高一倍以上。

　　◎ 三筒烘干机可适应煤、油、气等多种燃料，能烘干块状、粒状、粉状等多种物料，符合国家环保政策、是替代 传统烘干设备的环保节能型产品。

　　◎ Three-cylinder dryer can take full advantage of excess heat, reduce heat loss and increase the heat exchange area, making the unit evaporation intensity of the dryer greatly improved, thereby effectively improving the heat energy utilization rate, reducing the energy consumption and making the heat efficiency of three-cylinder dryer improved in a wider range. Compared with single-cylinder dryer with the same efficiency, its heat efficiency is improved about 50% and energy consumption saving doubles.

　　◎ Because the cylinder length of the three-cylinder dyer is one third of single-cylinder dryer and the base area saves about 60% than the single-cylinder dryer, the base investment is reduced correspondingly.

　　◎ The dryer drives by adopting the friction between supporting roller and belting leather, and the transmission power is low, thereby reducing the noises when the equipment working.

　　◎ The cylinder sealing system of the dryer adopts micro-contact technology, with better sealing effect and reducing the dust pollution.

　　◎ The cylinder and raising material board of the dryer both adopt alloy steel plates, and double the service life than common steel plates.

　　◎ Three-cylinder dyer can apply to coal, oil, gas and various fuels and parch lump, granular, powder and various materials, which complies with the national environmental-friendly policy and is the environmental-friendly and energy consumption product that can replace tradition drying equipment