Vertical sand making machines are commonly used in the quartz sand crushing
and shaping process. After running for a period of time, the discharge particle
size becomes coarser and the hammer head wears faster, which is likely due to
the gap between the impact plate and the hammer head not being adjusted in a
timely manner.
As the hammer gradually wears out, the distance between its outer end and the
counterattack plate will become larger and larger. For every 1mm increase in
gap, the proportion of oversized coarse particles in the discharge increases by
approximately 3% -5%. When the gap exceeds 1.5 times the initial value, the
number of impacts on the material inside the crushing chamber significantly
decreases, and the probability of coarse particles leaking through the mesh
increases significantly. It is recommended to stop the machine and check the gap
once a week. When the wear is close to one-third of the original thickness of
the hammer head, replacement or surface adjustment should be considered for use.
It is advisable to adjust the gap so that the material can form a good self
lining layer inside the cavity, which can protect the body and control the
particle size.
During the inspection, check if the wear surface of the hammer head is
uniform. If the wear on one side of the hammer is significantly heavier than on
the other side, it indicates that the material is unevenly distributed in the
crushing chamber, and the position of the feeding port or the angle of the guide
plate needs to be adjusted. A hammer with uniform wear can ensure stable
crushing effect and a longer replacement cycle. For issues related to equipment
operation optimization, please contact the technical team of Shandong Heavy
Industry for communication and exchange: Manager Zhang 13583776655 (same as
WeChat).