Acicular wollastonite pulverizer

A grinder for needle-like wollastonite ores comprises a jaw crusher, a hopper, a hoisting machine, a pipeline, a hammer crusher, an induced draft fan, a bag and a dust remover and is characterized in that the jaw crusher is connected with the hammer crusher through the hoisting machine and the pipeline, and an excessive material outlet of the hammer crusher is connected with the hopper and a material outlet of the hammer crusher is connected with a haling spiral multi-grade separator through the pipeline and the induced draft fan is arranged above the haling spiral multi-grade separator while a rotary valve is arranged below the haling spiral multi-grade separator, and the outlet of the haling spiral multi-grade separator is connected with the bag through the pipeline and the dust remover and the rotary valve are arranged below the bag. Because of arranging the rotary valve below the haling spiral multi-grade separator and the excessive material outlet of the hammer crusher being connected with the hopper, th