Luo G.,Central South University |
Luo G.,Guangdong Songshan Polytechnic College |
Zhou J.,Central South University |
Liu K.,Guangdong Shaoguan Iron and Steel Group Co.
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | Year: 2014
To study the fluidization principle of fluidized bed for coal moisture control, improve and develop the fluidized bed equipment, the experimental equipment was established. The coal particles fluidization in a fluidized bed with different sizes and different bed heights were experimentally studied. Fluidization curves of the fluidizing velocity and the average particle diameter and the resistance to pressure on the bed and the bed height of the impact were obtained. The critical fluidizing velocity was given. The relationship between the critical fluidizing velocity and particle diameter was obtained. The results show that the predicted critical fluidizing velocity is in good agreement with the measured result. Critical fluidizing velocity has relationship of square root of particle diameter. The relationship between the critical fluidizing velocity and the archimedes is established. It is useful for the design and operation of the coal moisture control equipment.