Secondary Attrition

SSEC manufacture specially designed Sand Attrition unit to convert the silica sand lumps to fine and to separate the bonded silica from the sand for recycling purpose.

Attrition unit consists of two stages of high speed lumps breaking rotors, which forces the lumps to convert into the fine sand .From the receiving hopper the sand will be diverted into the first rotor chamber through the discharge pipes. When the sand enters into the chamber, (where the rotor rotates at high speed) sand gets broken by centrifugal forces from rotor. During this sodium silicate separated and sucked by the blower and the same process will be continued in the second stage also. After the two stages are completed, the sodium silicate will be completely removed from the sand and the sand can be reused again for moulding.