Crushing device for methyl cellulose ether production raw materials

The utility model discloses a smashing device for methyl cellulose ether production raw materials, which comprises a smashing rack, a raw material opening unit is arranged above the smashing rack, a discharging hopper is arranged at the bottom of the smashing rack, and the smashing rack is provided with a plurality of sets of smashing units from top to bottom so as to further smash the raw materials which are not completely smashed. Each group of crushing units comprises a crushing assembly and a screening assembly which are connected in sequence, the screening assemblies are obliquely arranged, so that unscreened raw materials in the upper group are guided into the crushing units in the lower group through gravity, and the screened materials can fall from the screening assemblies in the upper group to the screening assemblies in the lower group. A plurality of groups of crushing units are arranged in the crushing device from top to bottom so as to further crush raw materials which are not crushed completely,