• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A supersaturated solution of ground bauxite and caustic soda is fed to a plurality of stirrer tanks in a product cascade. Each of these stirrer tanks of the product cascade has three vertically spaced zones with differing solid contents, a central vertical shaft and at least three vertically spaced paddles carried on the shaft and each extending into a respective one of the zones. The paddles are so constructed as to differently act on the solid in dependence upon the solid contents in each zone.
    公开号:SU708988A3
    申请号:SU762379606
    申请日:1976-07-13
    公开日:1980-01-05
    发明作者:И. Тиленс Артур (Сша)；Мюллер Вольфганг (Фрг)；Курт Тодтенхаупт Эрих (Фрг)
    申请人:Экато-Верк Эрих Карл Тодтенхаупт (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to equipment for producing alumina and can be used in the field of chemistry.
    A known mixer for producing alumina containing a mixing tank, section,. divided into three zones (upper, middle and lower) and equipped with a shaft rotating around the axis of rotation, on which in each zone there are mixing bodies, on the shoulders of which the blades are fixed, and in some zones the blades are set separately at an angle, and in the other shoulders of the mixing bodies are located in the plane of their rotation parallel to the radial line passing through the axis of rotation [1]. U
    This device does not provide sufficient product yield.
    The aim of the invention is to increase the yield of the target product.
    This goal is achieved by the fact that in the lower and upper zones the blades are located at installation angles of 10–90 ° C. and 5–60 °, respectively. In addition, the blades are located at installation angles decreasing with distance from the shaft, and the shoulders of the moving organs are set at an angle of 1050 ° relative to the plane perpendicular to the axis of rotation, and have a deflection at an angle of НОО 0 relative to the plane passing through the axis of rotation of the shaft.
    In FIG. 1 shows the proposed mixer, a vertical section; in FIG. 2 and 3 options for the location of the blades.
    The mixer comprises a housing 1, a cover 2, a drive 3, a shaft 4, mixing bodies 5, on the shoulders 6 of which the blades are fixed 7. The inner space of the tank is divided into three mixing zones: lower A, middle B and upper B.
    At least one mixing member 5 is located in zone A, which is provided with at least one radially mounted blade 7 extending from the shaft 4 to the inner edge of the housing 1. However, the blade 7 may be shorter.
    The mixing body 5 may have from two to six blades displaced relative to each other. The blades 7 are arranged at a mounting angle (angle between the blade plane and the plane of rotation peremeshivayu708988 conductive body 3) 10-90 °, preferably 4590 °.
    At least one mixing member 5 is located in zone A, provided with at least one radially mounted blade 7, which along the axis is divided into at least two sections located with a stroke that varies with respect to their plane of rotation. The mixing organ may have two blades 180 ° offset from each other, located iodine with an installation angle of 10-45 °, preferably 15-45 °.
    In the zone B, several mixing bodies are provided, which are located at a distance from each other on the shaft 4. All internal sections of the blades of all mixing bodies can have the same stroke or varying from one mixing body to another. The same is true for the outer sections of the blades.
    At least one mixing member 5 is located in zone B, having at least one blade 7, which is located radially, at distances from the shaft 4, closer to the inner wall of the housing 1.
    The mixing body 5 may have two blades 7 offset by 180 ° relative to each other, which are connected by a shoulder 6 to the shaft 4, or more, namely from two to six blades. In addition, the blades 7 can be divided into two or more sections and are located at an angle of 5-60 °, preferably 15-45 °, relative to their plane of rotation.
    The blades of the individual mixing organs are located at an angle of 180 °. The angle may also be less than 180 °, in particular 120-160 °.
    The mixing organs are shifted relative. approximately 90 ° apart. The housing 1 can be made cylindrical, conical or barrel-shaped. To add il sections of the blades can be made in the form of a rectangle, trapezoid, circle Or segment.
    The shoulders of the mixing organs are set at an angle of 10-50 ° relative to the plane Perpendicular to the axis of rotation, and have a deflection at an angle of 130-170 ° C relative to the plane passing through the axis of rotation (Fig. 2 and 3).
    The device operates as follows.
    An aluminate solution is supplied to the mixer and the drive 3 is turned on. In zone A, a rotation speed of ~ 10 cm / s is maintained in order to prevent or reduce the formation of deposits on the wall and bottom of the housing. Intensive mixing is carried out in zone B, and small crystals of aluminum hydroxide remain suspended, while large crystals fall into zone B. In zone B, the rotation speed is maintained `` ИО cm / sec. This zone is a settling zone.
    权利要求:
    Claims (4)
    [1]
    The invention relates to equipment for producing alumina and can be used in the field of chemistry. A mixer for producing alumina is known, containing a mixing tank divided into three zones (upper, middle and lower) and equipped with a shaft rotating around a vertical axis, on which in each zone there are agitating organs, on the shoulders of which the blades are fixed, and in some zones the blades are set separately at an angle, and in the other arms of the mixing bodies are located in the plane of their rotation parallel to the radial line passing through the axis of rotation 1. This device does not provide sufficient product yield. The aim of the invention is to increase the yield of the target product. The goal is achieved by the fact that in the lower and upper zones the blades are located at adjusting angles of 10-90 ° C and 5-60 °, respectively. In addition, the blades are located below the mounting angles decreasing with distance from the shaft, and the arms of the moving organs are set at an angle of 1050 ° relative to a plane perpendicular to the axis of rotation, and have a deflection at an angle of 130170 ° relative to the plane, through the shaft rotation axis. FIG. 1 shows the proposed mix .ch, vertical section; in fig. 2 and 3 blade positioning options. The mixer includes a housing 1, a flap 2, an actuator 3, a shaft 4, and mixing organs 5, on the arms 6 of which the blades 1 are fixed. The inner space of the container is divided into three mixing zones: lower A, middle B and upper B. In zone A is located at least at least one mixing body 5, which is provided with at least one radially mounted blade 7, extending from shaft 4 to the inner edge of the housing 1. However, the blade 7 may be shorter. The mixing body 5 may have from two to six blades offset relative to each other. The blades 7 are located at an installation angle (the angle between the blade's crown and the plane of rotation of the displacing organ) 10-90 °, preferably 4590 °. In zone A, there is at least one mixing body 5 provided with at least one radially mounted blade 7, which is divided along the axis into at least two sections arranged with a stroke varying with respect to their plane of rotation. The mixing body can have two blades offset by 180 ° relative to each other, located at an installation angle of 10-45 °, preferably 15-45 °. In the zone C, several mixing organs are provided, which are located at a distance from each other on shaft 4. All internal portions of the blades of all mixing organs can have the same course or change from one mixing organ to another. The same is true for the outer portions of the l {1 part. In zone B, there is at least one mixing body 5 having at least one blade 7, which is located radially, at a distance from shaft 4, closer to the inner wall of housing 1. Mixing body 5 can have two offset 180 ° with respect to each other, lapsh 7, which by shoulder 6 are connected to shaft 4 or more, namely from two to six. blades. In addition, the blades 7 can be divided into two or more sections and located at an angle of 5-60 °, preferably 15-45 ° relative to their plane of rotation. The blades of the individual mixing bodies are located at an angle of 180 °. The angle can also be less than 180 °, in particular 120-160 °. Mixing organs are displaced. each other approximately 90 °. The core 1 can be cylindrical, conical or barrel-shaped. Finish or parts of the blades can be made in the form of a rectangle, trapeze, circle or. The shoulders of the mixing bodies are set at an angle of 10-50 ° relative to the plane of the normal axis of rotation, and have a deflection at an angle of 130-170 ° C relative to the stiffness passing through the axis of rotation (Figures 2 and 3). The device works as follows. An aluminate solution is fed to the mixer, and a drive 3 is turned on. In zone A, the rotational speed is maintained at cm / sec in order to prevent or reduce the formation of deposits on the wall and the bottom of the housing. In zone B, vigorous stirring is carried out, and small crystals of aluminum hydroxide remain suspended, while large crystals fall into zone B. In zone B, the rotational speed is kept in cm / sec. This zone is a settling zone. Claim 1. A mixer for producing alumina containing a mixing tank divided into three zones (upper, middle and lower) and provided with a rotating around-the-vertical. This axis is a shaft on which in each zone there are mixing organs, on the shoulders of which the blades are fixed, and in some zones the blades are set separately at an angle, and in the other arms the mixing organs are located in the plane of their rotation parallel to the radial line passing through the axis of rotation, characterized in that, in order to increase the yield of the target product, in the lower and upper zones the blades are located at installation angles of 10-90 ° and 5-60 °, respectively.
    [2]
    2. A mixer according to Claim 1, characterized in that the blades are arranged at decreasing mounting angles with increasing distance from the shaft.
    [3]
    3. Mixer on pcs. 1 and 2, characterized in that the arms of the mixing bodies are set at an angle of 10-50 ° with respect to a plane perpendicular to the axis of rotation.
    [4]
    4. Mixer by. pp 1-3, characterized in that the arms of the mixing bodies have a deflection at an angle of 130-170 ° with respect to the plane passing through the axis of rotation of the shaft. Sources of information taken into account in the examination 1. Patent of Germany W 1557223, cl. 12 e 4/01, 1971.
    tM J
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    同族专利:
    公开号 | 公开日
    CH618948A5|1980-08-29|
    US4238159A|1980-12-09|
    JPS5231999A|1977-03-10|
    CA1098284A|1981-03-31|
    DE2531646A1|1977-02-03|
    AU504874B2|1979-11-01|
    FR2318113A1|1977-02-11|
    AU1405676A|1977-11-24|
    FR2318113B1|1981-08-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2572322C1|2014-10-14|2016-01-10|Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр"|Plant for thickening of belite slime suspension|AT265214B|1964-12-29|1968-10-10|Erich Karl Todtenhaupt|Apparatus for producing uniform dispersions|
    US3671019A|1970-12-10|1972-06-20|Rietz Mfg Co|Apparatus for material fluffing|JPS6043468B2|1978-03-22|1985-09-28|Takemoto Oil & Fat Co Ltd|
    IT1109426B|1978-07-31|1985-12-16|Eurallumina Spa|PROCEDURE FOR THE DISPOSAL OF BAUXITE PROCESSING RESIDUES AND THEIR CONTAINMENT IN COLLAPSE BASINS|
    DE2852273C3|1978-12-02|1986-07-31|Vereinigte Aluminium-Werke AG, 1000 Berlin und 5300 Bonn|Flame-retardant, aluminum trihydroxide-containing resin composition based on polymeric substances|
    JPS6314081B2|1979-10-18|1988-03-29|Kao Corp|
    DE3131088C2|1981-08-06|1984-11-29|Vereinigte Aluminium-Werke AG, 1000 Berlin und 5300 Bonn|Process for the production of aluminum hydroxide|
    FR2529877B1|1982-07-08|1985-04-19|Pechiney Aluminium|
    FI73148C|1982-08-24|1987-09-10|Outokumpu Oy|SAETT ATT DISPERGERA EN GAS I EN VAETSKA INNEHAOLLANDE FAST MATERIAL OCH EN ANORDNING DAERFOER.|
    EP0102403B1|1982-09-02|1986-03-05|Alcoa Chemie GmbH|Process for the production of alumine|
    FR2551429B2|1983-09-05|1985-10-18|Pechiney Aluminium|PROCESS FOR PRODUCING A LARGE AND REGULAR GRANULOMETRY ALUMINUM TRIHYDROXIDE|
    JPS6227171B2|1983-10-31|1987-06-12|Teijin Ltd|
    FR2573414B1|1984-11-22|1989-12-01|Pechiney Aluminium|METHOD FOR IMPLEMENTING A TWO-STAGE PRIMING FOR OBTAINING LARGE-GRAIN ALUMINA|
    JPH0763601B2|1989-01-13|1995-07-12|鐘淵化学工業株式会社|Stirrer for viscous substances|
    US5167449A|1991-12-12|1992-12-01|Corning Incorporated|Paddle shaft assembly with adjustable-pitch paddles|
    DE4429244A1|1994-08-18|1996-02-22|Laeis & Bucher Gmbh|Programmable mechanical treatment of free-flowing materials|
    US5738439A|1996-11-20|1998-04-14|Flower; Arnold B.|Mixing apparatus|
    FR2771081B1|1997-11-17|1999-12-17|Pechiney Aluminium|PRODUCTION OF ALUMINUM TRIHYDRATE WITH SEPARATE MONITORING OF SODIUM AND GRANULOMETRY|
    AU2002301811B2|2001-11-07|2007-08-23|Sumitomo Chemical Company, Limited|Aluminum hydroxide aggregated particles, process for producing the same, vessel used therefor, and process for producing aluminum hydroxide powder|
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    IN2012DE00390A|2012-02-13|2015-06-05|Council Scient Ind Res|
    CN102764624A|2012-08-08|2012-11-07|确成硅化学股份有限公司|Precipitation reactor for producing silica|
    CN106573209B|2014-08-13|2020-01-03|维尔萨利斯股份公司|Rotor and stirring equipment|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19752531646|DE2531646A1|1975-07-15|1975-07-15|METHOD AND DEVICE FOR MANUFACTURING CLAY|
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