Several Main Factors Affecting the Quality of Granulator Forming

　　1,The impact of material temperature.
　　The high or low temperature of the material directly affects the production capacity of the pelletizing device. The high and low here refers to the size of the material temperature before granulation from its own melting point or softening point temperature. Generally speaking, the higher the temperature, the smaller the yield. Therefore, for the material temperature is too high (generally refers to greater than the melting point or softening point of 50 ℃ or more), it is recommended that the material before granulation for heat treatment, in order to give full play to the production capacity of the granulator.
　　2,The impact of the nature of the material.
　　Different characteristics of the material, its granulation performance varies greatly. Affect the granulation process and quality of physical parameters are mainly melting point (or softening point), specific gravity, heat transfer coefficient, specific heat, crystallization characteristics, viscosity and liquid surface tension. Viscosity and surface tension mainly affect the quality of the granulated product; while other parameters mainly affect the cooling and curing speed of the material, thus affecting its yield. In general, the greater the melting point of the material, specific gravity, heat transfer coefficient, the smaller the specific heat, the greater the yield; and vice versa.
　　3,Viscosity (or surface tension), temperature on the comprehensive impact of particle forming quality.
　　The greater the viscosity and surface tension of the material at the corresponding temperature point, the fuller thehemispherical particles;conversely, the flatter. For general materials, the viscosity of molten materials decreases with the increase of temperature. However, our experimental study found that sulfur showed the opposite trend to other materials in a temperature range near the granulation temperature point. The discovery of this property is particularly important for our technical practice in sulfur pelletizing.