According to the demand of the market, Zhengzhou Dingli New Energy Technology Co., Ltd designs and manufactures paddle rotary dryer, which is also named a paddle-harrow rotary dryer. It is specifically designed according to the problems of the traditional rotary dryer which is not suitable for high-moisture materials that MC is higher than 50% and the viscosity is relatively low. Meanwhile, since the ‘black hole’ phenomenon occurring in the drum lowers the drying capacity and raises the energy consumption, the paddle rotary dryer sets high-speed spinning paddles, strengthening the crushing and separating function. The crushing effect enlarges the contact surface of particles, which largely increases the heat transfer rate and vaporization rate. According to the practical test, the unit vaporization capacity per hour of paddle rotary dryer is as much as 25-60kg/m2, which is twice of traditional rotary dryer. The output is raised by 50% and fuel consumption is reduced by 30%. At the same time, the footprint and drying efficiency is raised by 40%. It is applicable for the drying process of high-moisture materials with 50%-65% moisture, such as wood chips, sawdust, bamboo chips, wood shavings, barley straw, oat straw, wheat straw, rye straw, rice straw, sorghum straw, corn stalks, corn bran, potato vines, beans stalk and peanut vine. We also help optimize the drying process according to the property of different biomass materials, production scale, application requirements, cost control, automation level, and site condition.
Wet materials (50% - 65% moisture) are delivered to the drum for concurrent drying process through screw conveyor. Wet materials are lifted up and down by the internal flights and pushed through three layers in a spiraling pattern. The agitator installed inside the drum can completely shatter and blend wet materials, which realizes full heat exchange between cool materials and heated air. The dry materials could pass through the drum quickly under the air force.
Automatic control, to ensure the drying of sawdust water even and stable.Automatic stone removing and iron removal can ensure that the impurities of the sawdust are not in the rear process.The required investment of equipment is 1/6 of imported products.
Compared with the single-cylinder drier, the utility model reduces the occupation and the civil investment by about 50%, the design of flow rate adjustment devices ensures the control of the drying period. Raise heat efficiency by 20% and effectively control the drying time.
Cylinder self insulation, thermal efficiency of more than 70%, With tail drive, the transmission is more stable and reliable; completely change the wheel rotation, often slip shadow, Sound production phenomenon.
Frequency control is adopted to control material flow, and the final water can be easily controlled according to the needs of users Sub index. The air outlet temperature is low, and the dedusting equipment can be used for a long time.
|Evaporation Capacity (t/h)||0.75||0.9||1.3||1.57||1.96||2.27||2.61||3.13|
|Initial Moisture (%)||50±5%|
|Final Moisture (%)||15% (Adjustable)|
|Drying Temperature (℃)||350±30|
|Total Power (kw)||32||40||55||95||95||100||125||145|
|Total Weight (kg)||15000||17000||21500||26500||26500||28500||370000||41000|
|Plant Area (m2)||5m*15m||5m*15m||6m*16m||8m*18m||8m*20m||8m*20m||10m*20m||10m*22m|