Vertical mill and method for determining shape of crushing face

Vertical mill and method for determining shape of crushing face

  • CN 101,214,456 A
  • Filed: 07/16/2004
  • Published: 07/09/2008
  • Est. Priority Date: 07/16/2003
  • Status: Active Application
First Claim
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1. the crushed face shape of a vertical crusher is determined method, above the workbench lining that freely rotates around the table axis of approximate vertical, to be launched the pulverization roller that the setting of pushing state is freely rotated around roll axis towards the workbench lining, between workbench lining and pulverization roller, the blast furnace water granulated slag as raw material is pulverized, this roll axis towards workbench radial direction inboard to be directed downwards square neck oblique, the crushed face shape of this vertical crusher determines that method is characterised in that:

  • Crushed face comprise pulverization roller outer peripheral face, be roller outer peripheral face and the opposed workbench sleeve surface of described roller outer peripheral face, be workbench lining opposed faces;

    In comprising the hypothesis plane of roller, the datum axis vertical with the roll axis that is disposed is set between the roll axis direction both sides of pulverization roller by line and table axis;

    In above-mentioned imaginary plane, the workbench opposed faces is divided into foreign side'"'"'s side part and interior side'"'"'s side part, zone till described foreign side side partly is meant from the intersection point of workbench opposed faces and datum axis to workbench radial direction foreign side end, zone in square side partly refers to from above-mentioned intersection point to the workbench radial direction in described till the square end portion, foreign side'"'"'s side of roller outer peripheral face and workbench opposed faces partly is be formed centrally in being circular-arc with the 1st central point on the above-mentioned datum axis, interior side'"'"'s side of workbench opposed faces partly is to be that the center is formed circular-arc with the 2nd central point on the above-mentioned datum axis, described the 2nd central point than described the 1st central point by last and be positioned at workbench radial direction side;

    In above-mentioned imaginary plane, the vertical direction size of the foreign side'"'"'s side part till from the intersection point of workbench opposed faces and said reference axis to workbench radial direction foreign side end is confirmed as following size, the workbench lining is configured in the centrifugal force that the above-mentioned rotation of prepared using at above-mentioned intersection point place is produced when rotating, discharge to workbench radial direction foreign side on the workbench opposed faces;

    Vertical direction in the foreign side'"'"'s side part that satisfies above-mentioned workbench opposed faces is of a size of under the condition of above-mentioned definite size, determine the roller outer peripheral face, the foreign side'"'"'s side part of workbench opposed faces and the radius of interior side'"'"'s side part are, the radius of the radius ratio roller outer peripheral face of foreign side'"'"'s side part of workbench opposed faces is big, and the radius of foreign side'"'"'s side part of the radius ratio workbench opposed faces of interior side'"'"'s side part of workbench opposed faces is big, simultaneously, gap between interior side'"'"'s side part of roller outer peripheral face and workbench opposed faces diminishes to foreign side along the workbench radial direction, and the clearance constant between foreign side'"'"'s side part of roller outer peripheral face and workbench opposed faces, and then the diameter DR that the height H of above-mentioned workbench lining is chosen as with respect to above-mentioned roller satisfies H/DR=0.08~

    0.105.

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