Silica gel base material grinding device and grinding method

The silica gel base material grinding device comprises a main body assembly, and the main body assembly comprises a shell, a feeding opening, a baffle, a torsional spring, a limiting rod, a cover plate, a ventilation hole and an electric heating net; and a dust removal assembly is arranged on one side of the main body assembly and comprises an air inlet pipe, an exhaust fan, an exhaust pipe, a filter and a filter screen. The exhaust fan works to generate airflow, raised dust generated in the crushing and grinding process is collected, the raised dust is prevented from causing environmental pollution and affecting the health of workers, meanwhile, through work of the electric heating net, the internal temperature of the grinding device is increased, the crushed silica gel base material is further dried, and the grinding efficiency is improved. And meanwhile, the exhaust pipe is arranged at the position close to the first collecting box, silica gel particles can be guided to move in the direction of the first c