As illustration of how the invention can be put into practice, coal is accurately proportioned lo a suitable grinding mill where it is ground upon addition of Water into a coal slurry. This slurry is pumped into the kiln house and accurately proportioned into a blending conveyor, surface grinding machine manufacturers in india equipped with mixing paddles. The pulverized raw material is also proportioned into the same conveyor.Vertical roller mill for coal powder production in Australia. For a kiln output of 200 tons of clinker per day, a paddle conveyor of about 14 feet long, 2 feet 6 inches diameter, aggregate processing plant designer and supplier r.p.m. is adequate. The paddle conveyor homogenizes the raw meal/coal slurry blend into an earth-moist mass of material which is then fed to the nodulizer.
With water held strongly on the surfaces of the coal particles, blending between the coal slurry and the pulverized raw meal, under closely controlled neness relations and proportionng conditions, will produce strongly adhering raw meal layers around every coal particle. ultra wet grinder prices in hyderabad The structure of the pellets produced under these conditions (A) in the pan nodulizer becomes very different in comparison to pellets produced under conventional conditions in a nodulizer as described in Australian Patent 152,109 of May 3, 1950, where the dry,vertical roller mill for coal powder production in Australia, pulverized blend of raw pulverized blend of raw material and coal is moistened by fine water spray on the nodulizer (B), a procedure which became standard practice during the past l years, having been adopted by Spohu and others. Extensive investigation proved that after identical drying procedures of nodules produced as per (A) and (B), porosity and plasticity were much higher with (A) than with (B). This difference is of very great practical signicance for kiln operation, as the different nature of the solid/fluid structure, achieved by coal slurry application, permits water to escape during drying procedures without disrupting the nodule.