Method for producing environment friendly ceramic filtering material with magnesium slag

The invention relates to a method for preparing ceramic filtration materials. The method for preparing environment-friendly ceramic filtration materials by utilizing magnesium slag is characterized in that the method comprises the following steps: 1), stock preparation: for preparation, the magnesium slag are subjected to 120 meshes of crushing, and a fluxing agent, quartz sand and talc are subjected to 180 meshes of crushing respectively; according to the weight percentage, magnesium slag accounting for 50-60%, smolmitza 17%, quartz sand 3%, talc 3%, and fluxing agent 17-27% are selected, and then subjected to dry mixing in a globe mill for 20-24 hours to obtain stock; 2) balling: in order to obtain billet balls, the stock is placed in a ball forming mill, subjected to water spraying to obtain ball cores, 0.5 in diameter, which is subjected to water spraying again to obtain balls, the diameter of which is as required, then rolled for 2-3 minutes; 3) drying; and 4) sintering: dried billet balls are subjected