Dynamic screen process for hogging apparatus
AssigneeProgressive IP Limited
InventorRodney Sharp
Life of this patent
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Abstract
The present invention relates to the use of an agitator (10) positioned near the screen (4) of a hogger to increase turbulence in that region. The induced turbulence from the driven blades (15) of the agitator (10) reorients material contained within the hogger (1), thereby representing the material to the screen (4) and grinding disc (5) with potential improvements in both screening and comminuting efficiency.
Claims24
Apparatus for comminuting raw material comprising at least:
- a housing including at least one screen for passing comminuted material up to a particular size;
- a reducing assembly comprising a rotating toothed assembly,
- at least one agitator in proximity to said screen which agitates material in its vicinity.
An agitator as claimed in 20 in which the agitator includes either or both transmission means to a motor, and an independent motor, for rotationally driving the shaft.
A method for increasing the energy efficiency of comminuting apparatus comprising a reducing assembly, housing and one or more screens, said method in turn comprising the provision of at least one agitator in proximity to a screen on the apparatus, the agitator increasing the turbulence or agitation of comminuted or partially comminuted material in its vicinity, and said agitator in turn comprising a driven rotating blade portion positioned to interact with material within the comminuting apparatus in the vicinity of a said screen.
Comminuting apparatus in the form of a tub-type hogger, said apparatus comprising at least a vertically oriented tub or cylindrical shaped housing having at least one screen on at least its bottom end, and provision at its top for introducing raw material;
- the apparatus including a reducing assembly in the form of a rotating toothed disc, the rotational axis of said disc being substantially vertical and parallel to the cylindrical axis of the housing;
- there being included at least one agitator unit which includes a driven rotating blade which increases turbulence of raw and processed material in the vicinity of a screen.
Dependencies are inferred from the claim text.