B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
B07B 1/28 (2006.01) B07B 1/46 (2006.01)
Patent
CA 2699206
This invention is a reciprocating screen deck assembly that is supported on angled legs (relative to the screen deck) and when driven back and forth with a cam drive shaft at the correct speed and distance this results in a very effective and aggressive screening action. In a machine designed for separating material into two or three different sizes various types of machine mechanisms are used. In this invention the screen deck or decks are cam shaft driven, vibrated and supported within a stationary frame by four or more hinge pinned support legs that are set at an optimum angle. The angle of the support legs in relation to the screen deck, the distance the screen deck travels back and forth and the RPM that the cam drive shaft reciprocates the deck are all critical factors in achieving the efficient separation of materials. The material to be separated is dumped onto the high end of the screen deck and there are funnel shaped sides that help direct all the material onto the deck. The unit could be powered by electrical, gas, diesel, alternate fuel or hydraulic motor and be modified to attach to a variety of construction machinery or function as a stationary unit. The aggressive reciprocating action of the screen deck separates material quickly and propels the 'overs' off the end of the deck or into a storage hopper. These overs and fines could be piled or conveyered away. With a multi deck configuration all the material that drops through the top screen deck lands on the finer meshed second screen deck, mounted directly below the top screen deck and the mid sized materials that do not drop through this finer meshed screen deck are propelled off the end onto a conveyer belt and conveyed sideways (in relation to the deck) onto a stock pile. The fines material that drops through both screen decks lands onto a pile below the decks. This catchment area is designed to allow the loader operator to easily remove the fines material when needed. The RPM, angle of the legs and cam throw are adjustable to provide for gentler or more aggressive reciprocation of the deck. The stationary unit would have axles, wheels and a tow hitch to allow the unit to be towed from site to site.
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Warkentin Daniel James
LandOfFree
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