Patent ID: 6454457
Filing Date: 2002-09-24
Classification: B01F,B28C

Abstract:
A mixing apparatus for forming a mixture of a liquid and a dry substance, the mixing apparatus comprising:a mixing tube; a liquid inlet member for conveying the liquid into the mixing tube; a bulk inlet member for conveying the dry substance into the mixing tube; and a jetting valve disposed between the liquid inlet member and the mixing tube for regulating the flow rate of the liquid into the mixing tube, the jetting valve comprising: an outer sleeve fixedly attached to the mixing tube, the outer sleeve having a first opening in communication with the liquid inlet member and a second opening in communication with the mixing tube; and a jetting sleeve disposed in the outer sleeve, the jetting sleeve having a entrance opening in communication with the first opening in the outer sleeve and a plurality of jetting ports defined therethrough in communication with the second opening in the outer sleeve; wherein in an open position of the jetting valve the liquid is permitted to flow from the liquid inlet member through the first opening in the outer sleeve and the entrance opening in the jetting sleeve and out through the jetting ports and the second opening in the outer sleeve into the mixing tube, and wherein in a closed position of the jetting valve no flow of the liquid is permitted through the jetting ports.