Richard's Blog – December 2014 Archive (7)

Routine examination of the entire vertical mill can be avoided due to maintenance downtime accidents caused by improper lubrication, through regular checks to make timely replacement of wearing parts can be obtained to ensure that the operating rate of the device.

① daily inspection: inspection of the mill overall

a, observe whether there is unusual noise and vibration, check for loose bolt, mills and gear oil level is within the normal range; b, check the…

1, the pressure is too small

Transfer errors due to instrument instruction, if the mill other major operating parameter value within the normal range, notify the instrument to deal with workers, grinding stop, fineness of the product is too thick. Separator failure, resulting in speed is too low; immediately stop grinding treatment; feed rate too low to feed interruption, failure or due to feeding device control chunks stuck feed opening, resulting in feed amount is too small. Notify…

1, excessive vibration mill

(1) feeding is uniform, when the mixture into the mill for grinding powder, within the load rate is high, resulting in disc material layer is thin, even a millstone in direct contact with the grinding roller, caused by vibration mill; when the mixture into the mill is block material, the pressure difference caused by the grinding roller unstable, generating vibration…

Roller sleeve and grinding roller bearings are worn parts. Roller sleeve wear to a certain extent, can be used upside down; when the roller sleeve wear again, so that the vertical roller mill output decreased greatly, when the mill is not sufficient to maintain normal production and should be shut down, replaced with a new roll sets.

The following steps should replace the…

After nearly a century of development, vertical mill has been very mature. Especially since the sixties, with the birth of decomposition kiln technology to large-scale development, vertical mill in cement industry abroad has been widely used, its technical level has been further improved and perfected. More than a dozen domestic and foreign companies have developed various types of…

Vertical roller mill for short vertical mill, a cement raw materials, cement clinker, slag and slag grinding process used, has a simple structure, low cost of manufacture and use characteristics. Including between the body, the disc device and the transmission device, the body and the disc-centering means is provided to determine the structure of the rotational center of the bottom disc is fixedly provided with rotary guide means, through the rotary disc means rotatably supported on the rail…

As the economy continues to develop, the growing demand for Sand making machine and gravel, natural Sand making machine by environmental pollution, transportation costs, labor costs, constraints, shortage situation, Sand making machine entered the people's vision. Sand making machine is artificially selected raw materials, material uniformity, stability, mineral composition and chemical composition is consistent with the raw, not as complicated natural Sand making machine. Clean Sand making…