Patent ID: 7635218

Claim:
A dust-free low pressure mixing method for conveying dry components with liquids comprising: a. conveying at least a first dry component through a hermetically sealed conduit to a surge tank using compressed air; b. capturing dust from the surge tank using a cyclone separator forming a recovered product and venting air from the cyclone separator; c. pressurizing an eductor to simultaneously draw at least the first dry component from the surge tank and the recovered product from the cyclone separator into a mixing chamber of the pressurized eductor; d. using a flow promoter with a plurality of fluidizers to prevent bridging and rat-holing while flowing at least the first dry component to the eductor; e. fluidizing at least the first dry component and the recovered product using Bernoulli's principle in the eductor, and f. expelling the fluidized at least first dry component and the recovered product from the eductor, forming an eductor discharge.