Dry separator

Claim 1

A VERTICAL DOWNFLOW DRY CENTRIFUGAL SEPARATOR COMPRISING AN UPPER CYLINDRICAL CHAMBER RECEIVING A PARTICULATE LADEN CARRIER FLUID, A CARRIER FLUID INLET PASSAGE IN THE SIDE WALL OF SAID UPPER CHAMBER AND TANGENTIAL TO THE CYLINDRICAL WALL OF SAID UPPER CHAMBER AND IMPARTING AN INITIAL WHIRLING MOVEMENT OT THE LADEN FLUID PASSING THROUGH SAID INLET AND INTO SAID UPPER CHAMBER,SAID CHAMBER BEING CLOSED AT ITS TOP END, A SPOOL DEPENDING INTO SAID UPPER CHAMBER FROM SAID CLOSED TOP END AND COAXIAL WITH SAID UPPER CHAMBER, A BLADED GENERALLY CONICAL TUYERE HAVING WHIRL-INDUCING LOUVRES, EACH INCLINED WITH RESPECT TO THE GENERALLY CONICAL SURFACE OF SAID TUYERE AND SUPPORTED IN SAID UPPER CHAMBER BELOW SAID SPOOL AND SPACED APART FROM THE WALLS OF THE UPPER CHAMBER WITH ITS APEX PORTION ADJACENT AND BELOW SAID INLET FOR IMPARTING A WHIRLING MOVEMENT TO THE LADEN FLUID ENTERING THE CHAMBER FROM THE INLET AND PASSING THROUGH THE BLADED TUYERE, THE BASE PORTION OF THE TUYERE BEING DISPOSED BELOW THE TUYERE APEX, AN ANNULAR OUTWARDLY AND LATERALLY EXTENDING FLANGE ON THE LOWER END SAID UPPER CHAMBER, AND A CYLINDRICAL INTERMEDIATE CHAMBER HAVING THE SAME DIAMETER AS SAID UPPER CHAMBER AND HAVING AN ANNULAR OUTWARDLY AND LATERALLY EXTENDING FLANGE FORMED ON THE UPPER END THEREOF, SUPPORT MEANS SUPPORTING THE BASE OF SAID TUYERE WITHIN AND AT THE LOWER END OF SAID UPPER CHAMBER, MEANS SECURING SAID FLANGES TOGETHER, SAID INTERMEDIATE CHAMBER BEING IN COMMUNICATION WITH THE UPPER CHAMBER THROUGH SAID TUYERE, LOWER DISCHARGE HOPPER SEALINGLY CONNECTED AT ALL POINTS OF ITS UPPER PERIPHERY TO THE LOWER PERIPHERY OF SAID INTERMEDIATE CHAMBER AND HAVING DOWNWARDLY CONVERGING WALLS SUBSTANTIALLY THROUGHOUT ITS LENGTH AND IN COMMINICATION AT ITS UPPER END WITH SAID INTERMEDIATE CHAMBER AND RECEIVING AND DISCHARGING PARTICULATE MATTER SEPARATED FROM THE CARRIER FLUID AND TERMINATING AT ITS LOWER END IN A DISCHARGE OPENING, SAID HOPPER, AND INTERMEDIATE CHAMBERS, SAID TUYERE, SAID HOPPER, SAID DISCHARGE OPENING AND SAID SPOOL ALL BEING ARRANGED IN VERTICAL AXIAL ALIGNMENT, A CYLINDER SUPPORTED COAXIAL WITH AND WITHIN SAID INTERMEDIATE CHAMBER HAVING ITS UPPER END SPACED VERTICALLY BELOW THE BASE OF SAID TUYERE AND SPACED THROUGHOUT ITS LENGTH FROM THE INTERIOR SURFACE OF THE WALL OF THE INTERMEDIATE CHAMBER AND PROVIDING AN ANNULAR PASSAGE BETWEEN THE OUTER SURFACE OF SAID CYLINDER AND THE INNER WALL