• 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:
    The coating on the stator vanes in a flotation machine is subject to abrasive load caused by the air/suspension flow and acting on the top part of the vane facing the rotor. In prior art, the coating placed on the vane was stationarily joined, serving single use only. In the invention a detachable coating (6) has been developed, which is placed like a sock upon the stator vane (4) and secured in place with the aid of a cover member (8). This securing, or locking, is accomplished with the aid of a groove (7) machined in the stator vane and of tooth-like projections (9) provided on the cover member. A locally worn-out coating may be detached and either turned through 180 DEG or inverted and put back in its place.
    公开号:SU1378777A3
    申请号:SU833600198
    申请日:1983-06-02
    公开日:1988-02-28
    发明作者:Унтамо Ниитти Тимо；Микаэл Нискала Альвар
    申请人:Оутокумпу Ой (Фирма)；
    IPC主号:
    专利说明:

    WITH

    Oj
    7. Shells 6 and E 7 are made of wear-resistant elastic material. On shells 6, auxiliary E 10s are made to facilitate removal and putting them on to П 4. On the end edge of П 4 there are grooves 8, on walls Е 7, there are tooth-like projections 9, made with the possibility of entering grooves 8. During flotation
    the machines most wear out the areas of the shells 6, which enclose the edges nearest to the impeller and the front sides of the P 4. To update the worn out sections, they remove the E 7 and use the E 10 to rotate the shells 6 around the P 4, setting the non-worn sections of the shells 6 in the most worn blades. 4 il.
    one
    The invention relates to the flotation enrichment of minerals, in particular to units of fotatation machines or other apparatuses in which pulp is mixed.
    The purpose of the invention is to increase the life of the blade by ensuring more uniform wear of the coating.
    Fig. I is a schematic diagram of a mixing unit of a flotation machine; figure 2 and 3 - the blade of the stator, a vertical section; FIG. 4 is a section A-A in FIG. 3.
    The mixing unit of the flotation machine includes an impeller 1 with a shaft
    2 and stator 3. Each stator blade
    3 consists of vertically mounted around the impeller 1 with the shaft 2 plates 4, mounted on the plate 5, put on the plates 4 shells 6 and locking elements 7, made in the form of claws. The shells 6 and the locking elements 7 are made of wear-resistant elastic material. On the end edge of the plates 4 there are grooves 8, and on the walls of the locking element 7 there are tooth-like protrusions 9 corresponding in shape and dimensions to the grooves 8. Auxiliary elements 10 can be made on the shells 6 to facilitate removal and donning of the shells 6 on the plates 4.
    The stator blade works as follows
    To bring the blade into working condition, the plate 4 is put on the shell 6 and the assembly is closed off from the end by the locking element 7. A reliable locking of the shell 6 is provided
    the engagement of the tooth-like protrusions 9 of the cover 7 in the grooves 9 of the plate 4. During prolonged operation of the flotation machine, as a result of the abrasive action of the pulp, the shells 6 are worn out. At the same time, the shells 6 surrounding the impeller 1 and the front sides of the plates 4 most wear out ,
    When the shells 6 are significantly worn, the worn sections are updated, for which the covers 7 are removed.
    and using the auxiliary elements 10, the shells 6 are rotated around the plates 4. At the same time, practically unworn parts of the sheath 6 are installed in the most worn blades, and the operations are repeated.
    Thus, the application of the invention allows in 2-3 ra for increasing the service life of the shells of the stator blades of the flotation machine.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The stator blade of the flotation machine, which includes a plate, an elastic coating and a locking element, is characterized in that, in order to increase the service life of the blade by providing a more uniform wear of the elastic coating,
    the latter is made in the form of a removable shell, grooves are made in the front part of the plate, and the locking element is made in the form of a cover made of elastic material with tooth-like projections, with the protrusions of the crest made with the possibility of entering the plate grooves.
    FIG. j
    Fi8.
    Fi.
    类似技术:
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    同族专利:
    公开号 | 公开日
    SE453807B|1988-03-07|
    NO831835L|1983-12-05|
    AU1465483A|1983-12-08|
    SE8302578D0|1983-05-05|
    NO159348C|1988-12-21|
    ZA833418B|1984-02-29|
    FI821977A0|1982-06-03|
    FI65027C|1984-03-12|
    BR8302947A|1984-02-07|
    FI65027B|1983-11-30|
    US4508619A|1985-04-02|
    PH19737A|1986-06-17|
    AU559655B2|1987-03-19|
    CA1219739A|1987-03-31|
    SE8302578L|1983-12-04|
    NO159348B|1988-09-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US7886912B2|2003-03-17|2011-02-15|Outotec Oyj|Auxiliary agitator for a flotation device|US2373876A|1940-08-03|1945-04-17|Cutler Roger Wilson|Textile fiber working unit|
    US2406532A|1943-07-12|1946-08-27|Arthur W Fahrenwald|Flotation machine|
    US2365888A|1943-11-18|1944-12-26|Hal R Linderfelt|Tubing closure|
    US3229738A|1964-04-21|1966-01-18|Ind Tool & Machine Co|Claw hammer cap|
    US3882016A|1974-01-02|1975-05-06|Charles A Green|Flotation machine and impeller therefor|
    DE2823801A1|1977-06-23|1979-01-18|Makoto Naito|DEVICE FOR DISTRIBUTING GAS IN THE FORM OF FINE BUBBLES IN A LIQUID|
    US4425232A|1982-04-22|1984-01-10|Dorr-Oliver Incorporated|Flotation separation apparatus and method|US5591327A|1993-12-09|1997-01-07|Walters; Jeremy P. A.|Flotation equipment|
    US6777844B2|2000-10-24|2004-08-17|Rexair, Inc.|Brushless motor|
    DE10344379B4|2003-09-23|2008-09-11|Mankiewicz Gebr. & Co |Use of a two-component composition to make flexible polyurethane gel coats for resin composites, methods of making composites and composites|
    US8231007B2|2009-01-29|2012-07-31|Wark Rickey E|Static classifier cage|
    CN103447160A|2013-09-25|2013-12-18|瓮福（集团）有限责任公司|Wear-resisting stator device for flotation machines|
    WO2015114505A1|2014-01-28|2015-08-06|Flsmidth A/S|Wear protection for flotation machine and method of making and using the same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI821977A|FI65027C|1982-06-03|1982-06-03|SAETT ATT YTBELAEGGA STATORBLAD VID EN FLOTATIONSAPPARAT OCH ATT FAESTA YTBELAEGGNINGEN|
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