Petroleum fracturing sand production line

Process Description

• 01

  Crushing and pre-screening

  The raw ore (≤400mm) is crushed by jaw crusher, crushed by cone crusher, and then shaped by vertical shaft impact sand making machine to form particles of 0.425-0.85mm, ensuring sphericity>0.8. The vibrating screen separates the oversized materials (such as>20 mesh) and returns them for re-crushing.

• 02

  Scrubbing and magnetic separation

  The spiral sand washer, drum sand washer or vertical scrubber is used for two water washing, and the turbidity is controlled to ≤100FTU to remove clay and surface impurities. Then it enters the high gradient magnetic separator for two-stage treatment, and the removal rate of weak magnetic impurities is>90%, making Fe₂O₃≤0.015%.

• 03

  Dehydration and drying

  The qualified ore pulp passes through the dehydration screen, removes the water, and enters the rotary dryer (90-120℃) for 25-30 minutes, and the moisture content is reduced to ≤0.5%.

• 04

  Screening and grading

  The drum screening machine extracts qualified products of 0.425-0.85mm, and the sphericity of the finished sand is ≥0.9.

SUCCESSFUL CASE