Ovivo Inc.

James Goldhardt

Haydon Christiansen

Jacob Harwood

A vertical motion mixer has a drive mechanism with two axes of guidance for vertical motion. A reciprocating yoke is fixedly secured to the driving shaft for the mixer, without any guide bearing for the mixer driving shaft. The mixer drive unit is of compact and simplified design with minimal moving parts, and including drive gearing with planetary gears to minimize wear during reciprocating movement.

Vertical motion mixing drive

In a municipal sewage treatment system, a biological process tank, typically an anaerobic digestion process, has a flexible, inflated membrane cover. At least one draft tube mixer is installed on the tank, interrupting the gas supported cover with a platform having a flat base and may have upwardly extending sides that generally follow the contour of the inflated cover. The draft tube is connected to the platform and preferably supported on the floor of the tank. The mixer mechanism can be lifted out of the draft tube without escape of gas from the inflated cover.

Tank with membrane cover and draft tube mixer

A reciprocating motion disk for mixing wastewater in a tank of a treatment plan is optimized for geometry, along with cycling speed and stroke length, to cause effective mixing velocity throughout the tank.

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Layton, UT, United States of America

James Goldhardt