New industrial process to produce fine rubber powder by normal temperature comminution

摘要

The present invention relates to a new industrial process to produce fine rubber powder by comminution at normal temperature from waste tyre or waste rubber articles other than tyre. The present process comprises technical steps of coarse crushing, middle crushing, compounding, fine crushing, at least three times of removing iron, removing fiber and sieving. The present process overcomes the disadvantages of both conventional normal temperature comminution process and low temperature freezing process, and has the advantages of both the two processes described above. Therefore, it is a new industrial process to produce high quality fine rubber powder of 60 SIMILAR 500 meshes, with the characteristics of low investment, low cost, easy operating and being environmental friendly.