Study is made on preparation of small concrete hollow block using cinder wet discharged from power plant instead of sand by laboratory and industrial experiments.
通过实验室试验和工业性试制，对用电厂湿排煤渣替代砂配制的混凝土小型空心砌块进行了研究。
2
It is an optimal device for laboratory drying. Granular material: rotating granulation, screw extrusion granulation, wet mixing granulation, coating granulation, etc.
是实验室理想的干燥设备，颗粒状物料来源：旋转制粒、螺杆挤压制粒、湿法混合制粒、包衣制粒等。
3
Portland cements with similar specific surface were made in the same laboratory-mill with different clinkers produced in new type dry process kiln, wet process kiln, and shaft kiln.