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grinding the barite, limestone, kaollnite, ceram and slags, etc. which
below scale 9.3 of Moth and below 6% shadness and 280-odd sorts of
non-inflammable and non-explosive stuff in the trades of mining, metallurgy,
chemical engineering and building material for high fine powder generating
and processing . The Product size is adjustable in the range of 80-425
mesh. It is possible to produce 30-80 mesh coarse powder through special
device in the machine. |
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In the main frame, a 100-1500
kg powered pressure spring is fixed to the roller suspender. After
the grinder is put into effect, the roller rotates around the main
shaft, and rolls closely against the ring effected by the high pressure
spring and centrifugal force. And its rolling pressure is 1.2 times
higher than that of the Raymond grinder under the same power condintion
and the output is raised to asubstant degree..When the stuff is loaded
into the grinding cavity, it is shoveled into the space between the
roller and the ring for grinding.The resulted powder is routed to
the seperator along the circulation wind of the blower and the standard
fine powder is guided to the cyclone collector as final product and
large size stuff falls back to the grinder for regrinding. The circulation
wind returns to the blower to repeat the above process and the remainder
wind enters into bag deduster for purification.
When a certain degree of wear of roller and
ring is caused, it is recommended to adjust the length of the spring
to maintain the constant pressure between the roller and the ring.
As a result, the stable output and fineness are ensured. |
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