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(11)    Patent No :    AP 2591    (73) Applicant(s)       
(21)    Application No :    AP/P/2008/004531    OUTOTEC OYJ, Riihitontuntie 7, Espoo, FIN-02200,       
            Finland       
                   
(22)    Filing Date :    13.12.2006           
(24)    Date of Grant &    05.02.2013           
                   
(45)    Publication :

(30)    Priority Data            (72) Inventors   
    (33) Country    (31) Number    (32) Date    DAUM Karl- Heinz, Germany   
    DE    10 2006 000    02.01.2006    SCHALK Wolfram, Germany   
        696.8           
                       
                KERSTIENS Bernd, Germany   
                et al       
                (74) Representative   
(84)    Designated State           
                   
    ZM            FISHER CORMACK & BOTHA   
                   
(51)    International    Classification    B01D 47/10 (2006.01)    C01B 17/80 (2006.01)   
            C01B 17/58 (2006.01)       


(54)    Title

Quench system for metallurgical gases

(57)    Abstract

A quench system for cooling and/or cleaning metallurgical gases which are guided cocurrently with an acid-containing liquid, in particular sulfuric acid, includes a gas inlet (51) through which the gases are supplied from the top, an annular channel (55) extending about the inner circumference of an upper Venturi portion (52), over whose inner overflow wall (57) the acid-containing liquid flows over into the upper Venturi portion (52), and lateral nozzles (58) provided below the annular channel (55), through which additional

acid-containing liquid is introduced. To obtain a clear separation between wall portions of the Venturi portion exposed to dry/hot or wet/cold conditions, the inside diameter (D1 ) of the upper Venturi portion (52) is greater than the inside diameter (D2) of the gas inlet (51), in accordance with the present invention

(56)    Documents Cited :    US 609 818 A    WO 03/037790 A    US 4 469 943 A

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