The design of the outer shell of SF500/100 Scatter grading device and the original improvement discussion
Abstract：This topic carries on the design of the outer shell of scatter grading device and the original improvement, in the shell design we have determined first the shell’s size parameter, then carries on the stress analysis to the essential place, in the improvement part, we have carried on the careful analysis to the original design, pointed out the original design deficiency, then makes the reasonable improvement to it.Scatter grading device is the new blank cake which is published at the beginning of the 90's hits the divergence to choose the equipment, the aggregate cake to scatter with the size grading in a body, with the extruder necessary use, it may eliminate the disadvantageous influence extrusion grinder edge funnel and opens in when the engine off process and the normal work the big pellet which fully extrudes to the following grinding system has not been produced, which obtains the effect of the large scale production increase energy conservation. Because the rolling machine working instruction has stipulated: when the equipment starts the hydraulic system should be at the release of pressure condition. Therefore, when the rolling machine start process there will have massively material through roller press which have not after the effective extrusion. This is also the important reason that in scatter grading device involvement to push the press powder to be grinded in front of the craft system the extrusion pre- powder to rub the system output to enhance the scope not to be big also the existence big undulation. Scatter grading device carry on using the centrifugal impact crash principle to the material scatters, to disperse the shape realization graduation using the inertia and the aerodynamics principle.The gringing in the craft system in the extrusion union powder may obtain increases production 100% to 200%, frugal uses electricity above 30%, grinds the body consumption reduce above 60%.