Johnson Crushers International

Lawrence C Olsen

James Donald Brock

Gary Heeszel

Robert Carnes

Jeremiah West

Benjamin James Boyce

Mark Westerman

Kevin Prociw

Bob Stafford

A method and apparatus for wirelessly monitoring and/or controlling the processing operations of a mobile rock crushing plant.

Mobile rock crushing plant

A rock crushing plant including rock crushers, screens and conveyors. The assembly is modularized whereby major components and associated support structures are organized into movable modules that are independently movable from site to site over public roadways. The modules are equipped with appropriate support wheels for traveling and stabilizing jacks for stabilization of the modules at a rock crushing site. Modifications are made to certain of the components to satisfy road height and width restrictions, e.g., folding conveyors. Each module is preferably equipped with its own power plant.

A vibrating screen assembly supported by springs is provided which is used to size separate rock and other material. The present invention includes increasing the natural frequency of the screen assembly by stiffening the individual screen decks of the screen assembly, to enable the screen assembly to operate at higher operating speeds without prematurely failing.

Vibrating screen

A hybrid incline/horizontal screen for separating particulate material into predetermined size fractions, the screen having multiple screen decks mounted on a frame, at least one uppermost screen deck having an inclined receiving end and a horizontal discharge end. Each screen deck has a screening medium with predetermined sized openings that screens the particulate material. The screen decks are in stacked relationship, the upper screen deck having the largest screen medium openings, the openings becoming progressively smaller the lower the screen deck is mounted on the frame. The inclined receiving portion of the one or more uppermost screen decks provides for rapid material separation and conveyance through the upper screen decks to the lower screen decks while the horizontal discharge end reduces the tendency for the material to pile up (snowball) and maintaining a more uniform material bed, while providing for a shorter, more transportable screen. The screen incorporates perforated and non-perforated feed boxes at the screen deck receiving end to protect the screen decks from dropping material impact loads, to provide for an extended screening surface, and to pre-distribute the material as it falls into the feed box.

Hybrid screen

A vibrating screen supported by springs and vibrated via rotating gear sets. The gears are provided with off center weights synchronized to produce angularly directed vibration for moving the material from end to end on the screen. The gears are lubricated with a bath of low viscosity lubricant which is vibrated to form lubricant spikes that extend into the path of the weights to be propelled by the weights into the gears. The weights are substantially crescent shaped at their leading end to avoid hammer like impact of the lubricant and to thereby reduce heat generation.

Growing community of inventors

Jasper, OR, United States of America

Lawrence C Olsen