Particle-from-gas separators

Claim 1

APPARATUS FOR SEPARATING PARTICULATE MATTER FROM FLUID MEDIA, COMPRISING A PROCESSING CONTAINER HAVING SIDE WALLS AND FORMING A PROCESSING SPACE AND HAVING AN INLET DUCT NEAR ITS BOTTOM AND AN OUTLET DUCT ABOVE AND PARALLEL TO SAID INLET DUCT FOR PASSING A FLOW OF MEDIUM THROUGH SAID SPACE, SAID INLET AND OUTLET DUCTS DEFINING TOGETHER A PRIMARY FLOW AXIS, AGITATING MEANS FOR IMPARTING TO THE PRIMARY FLOW OF THE MEDIUM IN SAID SPACE A CIRCULATORY SECONDARY FLOW, SAID AGITATING MEANS COMPRISING A PLURALITY OF FLUID-INJECTION NOZZLE MEANS CIRCUMFERENTIALLY SPACED FROM EACH OTHER ABOUT SAID AXIS, SAID NOZZLE MEANS ALSO BEING SPACED FROM EACH OTHER AXIALLY ALONG SAID PROCESSING CONTAINER, EACH OF SAID NOZZLE MEANS BEING DIRECTED SUBSTANTIALLY TANGENTIAL TO AND TERMINATING AT THE INSIDE OF SAID WALLS AND INCLINED RELATIVE TO SAID AXIS TOWARD SAID INLET DUCT SO THAT SAID AGITATING MEANS SUPERIMPOSES ON SAID PRIMARY FLOW A SECONDARY FLOW HAVING A POTENTIAL FLOW COMPONENT AND A ROTARY-FLOW COMPONENT TO FORM IN SAID SPACE A VORTEX SINK NEAR SAID INLET DUCT AND A VORTEX SOURCE REMOTE FROM SAID INLET DUCT, SAID CONTAINER HAVING A RECEIVING PORTION AT ITS BOTTOM FOR COLLECTING SUBSTANCE SEPARATED OUT FROM THE COMBINED PRIMARY AND SECONDARY FLOW OF SAID MEDIUM.