... crusher, ball mill, magnetic separator, flotation machine, rotary kiln and sandstone production equipment such as vibrating screen, sand ... (if need); 2,Oxidizing roasting and reduction in rotary kiln; 3,Slag cooling and iron slag separation; 4,Flue gas ... in metallurgical, chemical, construction and other industries.rotary kilns have strong structures, stable operations and high-quality outputs. We ...