Method and apparatus for gas washing with liquid spray

Claim 1

IN A METHOD OF THE CHARACTER DESCRIBED FOR WASHING ENTRAINED MATTER FROM A STREAM OF GAS TO BE WASHED BY PASSING SAID STREAM OF GAS THROUGH A WASHING ZONE CONFINED WITHIN A SURROUNDING WALL AND THROUGH A ROTATING SPRAY PATTERN OF WASHING LIQUID DROPLETS THEREIN FOR IMPACT BETWEEN SAID WASHING LIQUID DROPLETS AND SAID ENTRAINED MATTER IN SAID STREAM OF GAS, THE STEPS WHICH COMPRISE INTRODUCING SAID STREAM OF GAS TO BE WASHED INTO SAID WASHING ZONE ABOVE SAID ROTATING SPRAY PATTERN THEREIN IN A DIRECTION GENERALLY TANGENTIAL TO SAID ZONE AND SAID ROTATING SPRAY PATTERN FOR PASSAGE OF SAID STREAM OF GAS THERETHROUGH, PASSING SAID STREAM OF GAS THROUGH SAID ROTATING SPRAY PATTERN IN SAID WASHING ZONE FOR CONTACT BETWEEN SAID WASHING LIQUID DROPLETS AND SAID ENTRAINED MATTER IN SAID STREAM OF GAS, DEFLECTING A PORTION OF SAID WASHING LIQUID DROPLETS FROM SAID SPRAY PATTERN IN PORTIONS THEREOF ADJACENT SAID SURROUNDING WALL OF SAID WASHING ZONE UPWARDLY IN SID WASHING ZONE FOR REMOVAL OF ACCUMULATIONS OF ENTRAINED MATTER IN SAID ZONE ABOVE SAID SPRAY PATTERN, AND CONCENTRATING SAID STREAM OF GAS PASSING THROUGH SAID WASHING ZONE INTO AN AREA OF RESTRICTED FLOW CENTRALY OF SAID ROTATING SPRAY PATTERN FOR A PORTION OF SAID PASSAGE OF SAID STREAM OF GAS THROUGH SAID SPRAY PATTERN, AND SEPARATING FROM SAID STREAM OF GAS SAID ENTRAINED MATTER WASHED THEREFROM AND SAID WASHING LIQUID DROPLETS AFTER SAID PASSAGE OF SAID STREAM OF GAS THROUGH SAID WASHING ZONE AND SAID ROTATING SPRAY PATTERN AND SAID RESTRICTED FLOW AREA THEREIN.