Cat litter and its preparation method

A method for preparing a cat litter, comprising following steps:

• S1, raw material preparation:
• preparing raw materials according to the following weight parts:
• 40-60 parts of bamboo extract, 10-20 parts of soybean residue powder, 5-10 parts of sweet potato residue powder, 4-8 parts of pine sawdust, 30-50 parts of bentonite, 5-8 parts of diatomaceous earth, 5-8 parts of volcanic rock particles, 4-6 parts of perlite powder, 0.5-1.5 parts of anthocyanin, and 4-6 parts of binder;
• S2, preliminary mixing of raw materials:
• mixing the bamboo extract, the soybean residue powder, the sweet potato residue powder, and the pine sawdust evenly to obtain a first mixed powder;
• S3, grinding:
• placing the bentonite, the diatomaceous earth, the volcanic rock particles, and the perlite powder into a ball mill, then grinding and mixing to obtain a second mixed powder;
• S4, solution preparation:
• mixing the anthocyanin with water thoroughly to form a mixed solution;
• S5, secondary mixing:
• thoroughly mixing the first mixed powder with the mixed solution and adding the binder at the same time, then adding the second mixed powder for thorough mixing, and adding the binder to prepare a pasty mass;
• S6, granulation:
• putting the pasty mass into a granulator to perform granulation to form mixed particles;
• S7, drying:
• drying the mixed particles, and then cooling the mixed particles after drying to obtain a finished cat litter product.