Apparatus for treating dust-laden gas

Claim 1

APPARATUS FOR TREATING DUST-LADEN GAS, COMPRISING IN COMBINATION, ENCLOSURE MEANS FORMING A WASHING LIQUID RESERVOIR, MEANS FOR MAINTAINING LIQUID AT AN APPROXIMATELY FIXED LEVEL IN SAID RESERVOIR, AN OUTER ANNULAR HOUSING HAVING AN OPEN LOWER END DISPOSED IN THE LIQUID TO A DISTANCE BELOW ITS UPPER LEVEL, A TOP CLOSURE FOR SAID OUTER HOUSING, A SUPPLY CONDUIT FOR DUST-LADEN GAS EXTENDING DOWN THROUGH SAID TOP CLOSURE INTO THE SPACE WITHIN SAID OUTER HOUSING, AN INNER HOUSING DISPOSED WITHIN AND SPACED FROM SAID OUTER HOUSING TO FORM AN OUTER ANNULAR CHAMBER THEREWITH, THE INNER HOUSING BEING SPACED FROM SAID GAS CONDUIT TO FORM AN INNER CHAMBER THEREWITH FOR MIXING GAS AND LIQUID, THE UPPER END OF SAID INNER CHAMBER BEING SPACED ABOVE THE LIQUID LEVEL AND BELOW SAID TOP CLOSURE TO PROVIDE TOP COMMUNICATION BETWEEN SAID INNER MIXING CHAMBER AND SAID OUTER CHAMBER, A SUCTION TUBE CONNECTED TO THE BOTTOM OF SAID INNER HOUSING FOR WITHDRAWING GAS MIXED WITH LIQUID THEREFROM, MEANS FOR MAINTAINING SUCTION IN SAID SUCTION TUBE, SAID SUPPLY CONDUIT HAVING ITS OPEN LOWER END DISPOSED ABOVE THE BOTTOM OF SAID INNER HOUSING TO DISCHARGE GAS INTO SAID MIXING CHAMBER, THE SUCTION IN SAID TUBE CAUSING THE LIQUID IN SAID OUTER CHAMBER TO RISE ABOVE THE LEVEL OF LIQUID MAINTAINED IN THE RESERVOIR, AND SAID INNER CASING HAVING MEANS ABOVE ITS BOTTOM END PROVIDING FOR THE FLOW OF LIQUID FROM SAID OUTER CHAMBER INTO THE INNER MIXING CHAMBER.