松木屑/烟煤粉/PVC粉混合制备成型燃料

以松木屑/PVC粉/烟煤粉为原料，在150℃下采用不同压力和不同原料配比混合制备成型燃料，研究不同原料配比和压力对成型后颗粒的初始密度、松弛密度和耐摔强度等物理品质的影响.结果表明，2种或3种原料混合制备成型燃料的稳定性和耐摔强度均高于单一原料.虽然成型燃料的成型密度稳定性和耐摔强度随着压力的增加而升高，但是当压力达到15MPa后，耐摔强度的增加趋势并不是很明显.考虑到热压机能耗随着压力增加而增加的因素，15MPa可以确定为最佳成型压力.15MPa下，成型燃料在混合比例（松木屑：烟煤粉：PVC粉）为1：1：3时密度稳定在1.408g/cm³；耐摔强度在1：1：2时达到最大值99.99%.

Production of briquettes fuel derived from pinewood sawdust/PVC plastic/bitumite mixed together

The mixtures of pine sawdust/PVC plastic/bitumite were used for producing high physical properties briquettes fuel with stable intensity and high durability, which can make fully use of abandoned pine sawdust, refractory PVC plastic and low quality Qujing bituminous coal. The air dried mixtures of pine sawdust/PVC/bituminous coal were slected to make briquettes fuel under 150℃ and different pressure. The effects of material ratio and pressure on briquettes initial density, relaxed density and durability were studied. Two or three ingredients of molding fuels had higher density stability and durability than those of single material. The density stability and durability increased with the increase of pressure, but the increasing trend was slow after 15MPa. Considering that the energy consumption increases with the increase of pressure, 15MPa could be determined as the best molding pressure. 1.408g/cm³ was the most stable density of briquettes fuel at 1:1:3, while the durability reached peak value of 99.99% at 1:1:2, under condition of 15MPa.