Metal working – Method of mechanical manufacture – Repairing
Patent
1980-03-10
1982-05-18
Husar, Francis S.
Metal working
Method of mechanical manufacture
Repairing
241182, 241DIG30, 2940211, B22D 1910, B02C 1714
Patent
active
043297676
ABSTRACT:
A method is described for sequential replacement of the lining in a rotating mill according to wear of the lining. Generally, such a lining consists of adjacent zones parallel to the rotational axis of the mill, the height of these zones varying periodically in the peripheral direction of the mill. According to the invention rubber beams of equal width are used, and for the replacement operation completely fresh beams of only one height are employed, this height representing the highest one of only a few preselected categories of beams. Upon removal of worn beams, these are reassorted according to the selected categories and those beams worn-out and unfit for even the lowest category are discarded. Thus, the reassorted beams not rejected can be reused properly positioned so as to maintain a suitable variation of the beam height in the peripheral direction of the mill, and only one height of fresh beams need to be held in stock. When replacing, the particular beam category may be retained at a certain beam position, or completely fresh beams may be inserted at positions of beams completely discarded, whereby the desired variation of beam height in the peripheral direction is obtained by suitable replacement or rearrangement of the remaining beams.
REFERENCES:
patent: 3378209 (1968-04-01), Crocheron
patent: 3804346 (1974-04-01), Norman
patent: 3883080 (1975-05-01), Andersson
patent: 3934828 (1976-01-01), Persson
Husar Francis S.
Outokumpu Oy
Rising V. K.
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