A REACTOR.
    2.
    发明公开
    A REACTOR. 失效
    电抗器。

    公开(公告)号:EP0606432A4

    公开(公告)日:1994-11-30

    申请号:EP93915520

    申请日:1993-07-09

    Abstract: A reactor for introducing a gas into a fluid comprises a mixing tank (12, 43) for the fluid and a partition means (13, 45) for dividing the tank into at least two chambers (21, 89) and (23, 91). The reactor further comprises a first pump means (14, 47) located in one of the chambers for circulating the fluid downwards in one chamber and then upwards in the other chamber and an aerator assembly (29, 49) for aerating a sidestream of the fluid and introducing the aerated fluid into the tank for mixing the aerated fluid with the circulating fluid in the tank. The aerator assembly (29, 49) comprises a bank of venturi aerators (38, 57) each having an aerator inlet; an aerator outlet; and a constriction intermediate the aerator inlet and the aerator outlet for creating a region of reduced pressure in the fluid, the constriction being elongate in a section transverse to the direction of flow of the fluid through the constriction; and a means for introducing the gas into the constriction to aerate the fluid.

    A REACTOR
    4.
    发明专利

    公开(公告)号:CA2116248C

    公开(公告)日:2004-11-09

    申请号:CA2116248

    申请日:1993-07-09

    Abstract: A reactor for introducing a gas into a fluid comprises a mixing tank (12, 43) for the fluid and a partition means (13, 45) for dividing the tank into at least two chambers (21, 89) and (23, 91). The reactor further comprises a first pump means (14, 47) located in one of the chambers for circulating the fluid downwards in one chamber and then upwards in the other chamber and an aerator assembly (29, 49) for aerating a sidestream of the fluid and introducing the aerated fluid into the tank for mixing the aerated fluid with the circulating fluid in the tank. The aerator assembly (29, 49) comprises a bank of venturi aerators (38, 57) each having an aerator inlet; an aerator outlet; and a constriction intermediate the aerator inlet and the aerator outlet for creating a region of reduced pressure in the fluid, the constriction being elongate in a section transverse to the direction of flow of the fluid through the constriction; and a means for introducing the gas into the constriction to aerate the fluid.

    A reactor
    6.
    发明专利

    公开(公告)号:ZA934949B

    公开(公告)日:1994-01-31

    申请号:ZA934949

    申请日:1993-07-09

    Abstract: A new aerator for perfusing a fluid with a gas has an inlet, an outlet and a central throat area with reduced cross-section in which the fluid pressure is reduced. The throat area is of elongated shape and is provided with a means for introducing the required gas. Also claimed is the procedure for aerating a fluid using this aerator. Gas is introduced via a row of nozzles or openings (1) or a porous membrane extending around the circumference of the throat area. A number of similar aerators may be used with a common fluid inlet and/or outlet. The flow of fluid is regulated to pass vertically through the throat area at a rate of at least 100 l/min. and preferably more than 200 l/min, and at a velocity of 1 to 10 m/s, and pref. 4 to 10 m/s. The fluid may in particular be an aq. extn. liq. and the gas air. The volumetric flow ratio of air to liquid is at least 0.2, and pref. more than 0.5, and esp. more than 0.7. The gas is introduced under the effect of natrual aspiration or under a slight pressure. USE/ADVANTAGE - Esp. for providing the required oxygen for the bacterial agents in biological extn. liqs. used for the extn. of ores. The aerator is economical to produce and to operate and achieves a high rate of aeration, thus reducing the cost of the aeration process.

    Aerator, esp. for provision of oxygen@ to biological ore extn. liq. - contains of vertical duct with throat section which has elongated shape and is provided with means for introducing required gas

    公开(公告)号:DE4224911A1

    公开(公告)日:1994-01-13

    申请号:DE4224911

    申请日:1992-07-28

    Abstract: A new aerator for perfusing a fluid with a gas has an inlet, an outlet and a central throat area with reduced cross-section in which the fluid pressure is reduced. The throat area is of elongated shape and is provided with a means for introducing the required gas. Also claimed is the procedure for aerating a fluid using this aerator. Gas is introduced via a row of nozzles or openings (1) or a porous membrane extending around the circumference of the throat area. A number of similar aerators may be used with a common fluid inlet and/or outlet. The flow of fluid is regulated to pass vertically through the throat area at a rate of at least 100 l/min. and preferably more than 200 l/min, and at a velocity of 1 to 10 m/s, and pref. 4 to 10 m/s. The fluid may in particular be an aq. extn. liq. and the gas air. The volumetric flow ratio of air to liquid is at least 0.2, and pref. more than 0.5, and esp. more than 0.7. The gas is introduced under the effect of natrual aspiration or under a slight pressure. USE/ADVANTAGE - Esp. for providing the required oxygen for the bacterial agents in biological extn. liqs. used for the extn. of ores. The aerator is economical to produce and to operate and achieves a high rate of aeration, thus reducing the cost of the aeration process.

    TREATMENT OF WASTE
    8.
    发明专利

    公开(公告)号:CA2103675C

    公开(公告)日:2004-04-06

    申请号:CA2103675

    申请日:1992-12-07

    Abstract: A method of destroying organic waste in a bath of molten metal and slag contained in a vessel (3) is disclosed. The method comprises injecting organic waste into the bath to form a primary reaction zone (13) in which the organic waste is thermally cracked and the products of the thermal cracking which are not absorbed into the bath are released into the space above the surface of the bath. The method further comprises injecting an oxygen- containing gas towards the surface of the bath to form a secondary reaction zone ( 17) in the space above the surface of the bath in which the oxidizable materials in the products from the primary reaction zone (13) are completely oxidized and the heat released by such oxidation is transferred to the bath. In order to facilitate efficient heat transfer from the secondary reaction zone (13) to the bath, the method further comprises injecting an inert or other suitable gas into the bath to cause molten metal and slag to be ejected upwardly from the bath into the secondary reaction zone (17).

    9.
    发明专利
    未知

    公开(公告)号:AT149876T

    公开(公告)日:1997-03-15

    申请号:AT93915520

    申请日:1993-07-09

    Abstract: PCT No. PCT/AU93/00340 Sec. 371 Date Mar. 16, 1994 Sec. 102(e) Date Mar. 16, 1994 PCT Filed Jul. 9, 1993 PCT Pub. No. WO94/01210 PCT Pub. Date Jan. 20, 1994.A reactor for introducing gas into a fluid comprises a mixing tank (12, 43) for the fluid and a partition means (13,45) for dividing the tank into at least two chambers (21, 89) and (23, 91). The reactor further comprises a first pump means (14, 47) located in one of the chambers for circulating the fluid downwards in one chamber and then upward in the other chamber and an aerator assembly (29, 49) for aerating a sidestream of the fluid and introducing the aerated fluid into the tank for mixing the aerated fluid with the circulating fluid in the tank. The aerator assembly comprises a bank of venturi aerators (38, 57) each having an aerator inlet; an aerator outlet; and a constriction intermediate the aerator inlet and the aerator outlet for creating a region of reduced pressure in the fluid, the constriction being elongate in a section transverse to the direction of flow of the fluid through the constriction; and a means for introducing the gas into the constriction to aerate the fluid.

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