• 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 cyclone for treating pulverous raw material suspended in a hot gas stream, for use, for example, in a suspension preheater plant for treating cement raw materials and similar materials, comprises a tubular chamber (1,12) with a vertical axis, a cone shaped bottom (2) with a central outlet (3) for precipitated, material, a central outlet (4) for hot gases at the top of the chamber (1,12) and a tangential inlet (5) for hot air. The inlet has a chamfered wall (7) causing the suspension stream entering the cyclone through duct (6) to be deflected outwards against the inner surface of the chamber wall and downwards into the cyclone chamber.
    公开号:SU1671150A3
    申请号:SU884355396
    申请日:1988-03-24
    公开日:1991-08-15
    发明作者:Петер Элкйер Ганс
    申请人:Ф.Л.Смидт Энд Ко.А/С (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to equipment for firing powder materials, in particular to a cyclone for separating powder material from air or gas flow, used in preheaters of said installations.
    The aim of the invention is to increase the efficiency of separation of the powder material from the air or gas stream.
    FIG. 1 shows the proposed cyclone, side view; in fig. 2 - the same, horizontal projection.
    The cyclone contains a cylindrical body 1 with a vertical axis, a conical osnopanne2, an outlet 3 of a material separated in a cyclone, a central nozzle 4, which in the case of a known cyclone can have an elongation that enters the body 1 and which is the air outlet or gas flow.
    Inlet 5 is the downstream end of the inlet pipeline b and has a trapezoidal configuration, since in the upper part, which is closer to the cyclone axis, it has a triangular wall 7 that forms a bevelled elongation of the cylindrical side wall 8 and having downstream edge 9, forming part of the inlet passage. The edge 9 may have a slope relative to the horizontal, equal to about 45 °.
    The bottom part 10 of the inlet 5 forms an inner surface inclined downwardly and radially inwardly into the body, and has a preferred inclination relative to the horizontal of approximately 50 °. The outer edge 13 of the beveled wall has a length of 1 2 times its downstream free edge 9, forming part of the barrier in the inlet hole.
    In order to reduce the overall dimensions of the cyclone, the lower part of the cylindrical body 1 has a smaller diameter than the upper part, which includes the inlet 5.
    Wall 7 is obtained by beveling 11 the upper wall of pipe b, so that a downward slope is created in the direction of the free edge 9. Bevel together with the edge act on the flow entering the cyclone in the sense of a smooth deflection, with the result that the flow is directed outwards towards the inner surface the walls of the housing and down into the cyclone, which is partially shown by hatching 12 in FIG. 2. Thus, the flow
    a longer residence time in the cyclone is reported, which leads to an increase in the efficiency of the separation of the powder material. In addition,
    another reduction in pressure loss and better utilization of total internal volume / cyclone
    Comparative experiments were carried out in a cement kiln using the proposed cyclone, in which the tubular body had a diameter of 900 mm, the oblique wall covered 10% of the cross section and the length of the outer edge was 2 times the length of the free
    edges (further cyclone I); the proposed cyclone, in which the tubular body had a diameter of 900 mm, the oblique wall covered 20% of the cross section and the length of the outer edge was 1 times the length of the free edge (hereinafter cyclone II); a cyclone, in which the tubular body had a diameter of 900 mm, the sloping wall covered 5% of the cross section and the length of the outer edge was 2 times the length of the free edge (hereinafter cyclone III); a cyclone in which the tubular body had a diameter of 900 mm and the sloping wall covered 25% of the cross section and the length of the outer edge was 1 times the length of the free edge (hereinafter cyclone IV); known cyclone according to the prototype, in which the tubular body had a diameter of 900 mm (hereinafter cyclone V).
    In all cyclones, the average degree of separation of the powder material from the air-gas flow was determined for 240 hours of operation of the installation,%:
    II III IV V
    94.9 94.7 89.3 94.6 88.9
    Comparison of the obtained data indicates not only the achievement of the goal, but also the fact that if the lower limit is not observed, the degree of separation of the powder material from the air-gas flow is only slightly better than the degree achieved using a cyclone of known design overlap the positive effect is not further enhanced, but rather begins to deteriorate. In addition, the pressure loss ratio increases by about 15%. which is unacceptable.
    权利要求:
    Claims (3)
    [1]
    1. Cyclone for separating the powder material from the air or gas flow, comprising a tubular body with a vertical axis, the upper part of which is equipped with a central gas or air outlet and connected to the inlet nozzle by a tangential air or gas flow inlet containing powder material, and a conical base associated with a tubular body and provided with a release of the separated material, characterized in that, in order to increase the efficiency of the powder material separation process, in place and a housing inlet in the upper portion closest to the axis of the housing is formed with a tapered wall inclined downwards and radi0
    five
    0
    from the housing in the direction of the flow of air or gas flow, the bottom of the inlet is inclined downward and radially inward of the housing.
    [2]
    2. Cyclone pop 1. different in that. that the oblique wall overlaps between 10 and 20% of the inlet cross section compared with the cross section of the inlet pipe directly upstream in the direction of air or gas flow through the inlet.
    [3]
    3. Cyclone according to claims 1 and 2, characterized in that in the direction of the flow of air or gas flow, the outer edge of the oblique wall has a length equal to 1-2 times its length downstream of the free edge forming part of the barrier in the inlet opening.
    12
    t and
    $ ig.g
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1671150A3|1991-08-15|Cyclone
    EP0403545B1|1992-09-16|Heat exchanger
    CN1100586C|2003-02-05|Centrifugal separator for circulating fluidised bed boilers
    US3420040A|1969-01-07|Dust collector
    SU148023A1|1961-11-30|Cyclone for cleaning dusty air or gas
    US4344783A|1982-08-17|Cyclone separator
    US4312650A|1982-01-26|Particle separator
    US4822574A|1989-04-18|Gas suspension reactor
    US4407652A|1983-10-04|Apparatus for calcining raw materials in the form of powder or particles
    US4342576A|1982-08-03|Particle separator
    US1933730A|1933-11-07|Dust collector
    US970530A|1910-09-20|Tubular guard for dust-collectors.
    EP0302854B1|1991-06-12|A circulation fluidized bed reactor
    SU874207A1|1981-10-23|Cyclone separator
    SU793608A1|1981-01-07|Cyclone
    RU1813580C|1993-05-07|Cyclone dust separator
    SU1742607A1|1992-06-23|Cyclone
    JPH06154659A|1994-06-03|Low pressure loss cyclone
    RU2229346C1|2004-05-27|Air cleaning unit
    EP0231931A2|1987-08-12|A cyclone with forced gas stream whirling
    SU1087182A1|1984-04-23|Cyclone installation
    SU481320A1|1975-08-25|Multicyclone
    RU2323767C2|2008-05-10|Vortex dynamic separator
    SU1585641A1|1990-08-15|Installation for heat treatment of pulverulent raw material
    SU1301468A1|1987-04-07|Vortex coagulator
    同族专利:
    公开号 | 公开日
    CN1038986C|1998-07-08|
    GB8707143D0|1987-04-29|
    CA1289913C|1991-10-01|
    TR24016A|1991-02-01|
    EP0284184A1|1988-09-28|
    DE3863210D1|1991-07-18|
    JP2690319B2|1997-12-10|
    AU593977B2|1990-02-22|
    AU1160088A|1988-09-29|
    GB2202468A|1988-09-28|
    IN170430B|1992-03-21|
    ES2022985B3|1991-12-16|
    JPH01242161A|1989-09-27|
    MX169552B|1993-07-12|
    CN88101590A|1988-10-26|
    IN170663B|1992-05-02|
    EP0284184B1|1991-06-12|
    BR8801363A|1988-11-01|
    US4848993A|1989-07-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US575561A|1897-01-19|Steam-exhaust head |
    CA624309A|1961-07-25|M. Chapman Harlow|Materials separation apparatus and method of materials separation|
    US408987A|1889-08-13|Orville m |
    CA714367A|1965-07-27|Mitsubishi Denki Kabushiki Kaisha|Electrostatic dust collector|
    US1344146A|1919-07-01|1920-06-22|Charles B Peck|Dust-collector|
    US2271634A|1939-08-30|1942-02-03|Babcock & Wilcox Co|Fluid separator|
    US2295101A|1940-08-03|1942-09-08|Socony Vacuum Oil Co Inc|Separation apparatus|
    US2590754A|1943-08-30|1952-03-25|Clayton Manufacturing Co|Deaerating apparatus|
    GB762070A|1950-12-28|1956-11-21|Jones Gas Process Company Ltd|Improvements in or relating to dust separators of the cyclone type|
    DE959506C|1952-08-26|1957-03-07|Reinhard Chelius Dipl Ing|Cyclone for cleaning gases or liquids|
    US2786547A|1954-04-19|1957-03-26|Universal Oil Prod Co|Centrifugal separator|
    GB773414A|1955-01-13|1957-04-24|Harold Eric Baliol Scott|Improvements in vortex separators|
    DE1274081B|1958-08-22|1968-08-01|Siemens Ag|Rotary flow vortex for separating media of different densities|
    US3288300A|1962-02-14|1966-11-29|Bauer Bros Co|Centrifugal cleaner|
    US3413776A|1967-01-18|1968-12-03|F F Vee Equipment Co Inc|Cyclone separator|
    US3513642A|1968-07-25|1970-05-26|Milan S Cornett|Centrifugal dust separator|
    DE2038045C3|1970-07-31|1981-12-10|Siemens AG, 1000 Berlin und 8000 München|cyclone|
    DE2049651A1|1970-10-09|1972-04-13|Licentia Gmbh|Downward flow cyclone - with inlet duct shaped to assist downward motion|
    US3745752A|1970-12-30|1973-07-17|Envirotech Corp|Fluid inlet structure for cyclone collectors|
    US4134752A|1972-05-15|1979-01-16|Shell Oil Company|Plant growth regulators|
    US4011068A|1972-12-11|1977-03-08|State Electricity Commission Of Victoria Commonwealth Of Australia|Particle separator|
    AU470888B2|1971-12-09|1976-04-01|State Electricity Commission Of Victoria|Improvements in and relating to stream dividers|
    GB1434091A|1973-04-30|1976-04-28|Smidth & Co As F L|Plant for burning or heat treatment of granular or pulverous material|
    GB1453215A|1974-05-10|1976-10-20|Smidth & Co As F L|Calcination of pulverous material|
    US3898068A|1974-05-31|1975-08-05|John A Mcneil|Cyclonic separator|
    SE406713B|1977-07-18|1979-02-26|Celleco Ab|HYDROCYCLOSE SEPARATOR WITH SLIDES IN THE CIRCULAR CYLINDRICAL PART OF THE SEPARATION CHAMBER|
    US4344538A|1980-06-11|1982-08-17|Kabushiki Kaisha Kobe Seiko Sho|Cyclone separator with influent guide blade|
    JPH0122024B2|1981-01-12|1989-04-25|Mitsubishi Kogyo Semento Kk|
    DE3415482A1|1984-04-26|1985-10-31|Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster|Cyclone dust separator|
    DE3437037A1|1984-10-09|1986-04-10|Krupp Polysius Ag, 4720 Beckum|CYCLONE ARRANGEMENT|
    US4600410A|1984-12-19|1986-07-15|Atlantic Richfield Company|Process and apparatus for separating particulate matter from a gaseous medium|
    US4624691A|1985-03-04|1986-11-25|Varnas Enterprises|Cyclone separators to prevent or reduce clogging|EP0310305B1|1987-10-02|1992-07-22|Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo|Cathartics|
    US5801195A|1994-12-30|1998-09-01|Celgene Corporation|Immunotherapeutic aryl amides|
    US5738712A|1995-03-13|1998-04-14|Foster Wheeler Energia Oy|Centrifugal separator assembly and method for separating particles from hot gas|
    CN1066929C|1996-03-14|2001-06-13|赵吉发|Health drink and preparing process thereof|
    FR2788453B1|1999-01-18|2001-02-23|Alstom|SMOKE INLET SHEATH IN A CYCLONE SEPARATOR|
    GB0221512D0|2002-09-17|2002-10-23|North John H|Improved separation apparatus|
    US6926749B1|2003-06-27|2005-08-09|Fisher-Klosterman|Cyclone separator with compact inlet|
    JP4848136B2|2005-04-28|2011-12-28|三菱重工業株式会社|Oil separator|
    JP5260034B2|2007-11-30|2013-08-14|三菱重工業株式会社|Powder separator and solid fuel burner|
    DE102008038776B4|2008-08-12|2016-07-07|Loesche Gmbh|Process for the screening of a millbase fluid mixture and mill classifier|
    FR2941389B1|2009-01-29|2011-10-14|Fives Fcb|SELECTIVE GRANULOMETRIC SEPARATION DEVICE FOR SOLID PULVERULENT MATERIALS WITH CENTRIFUGAL ACTION AND METHOD OF USING SUCH A DEVICE|
    DE102009042013B4|2009-09-21|2015-05-07|Outotec Oyj|Cyclone for the separation of sticky particles from gas streams|
    IN2014DN07425A|2012-03-14|2015-04-24|Mitsubishi Materials Corp|
    JP6416517B2|2014-07-02|2018-10-31|日立アプライアンス株式会社|Electric vacuum cleaner|
    CN104525392B|2014-12-10|2017-02-08|华北电力大学|Cyclone separator with gradually enlarged inlet, flow guide plate and dustproof screen and experiment system|
    DE202016102924U1|2016-06-01|2017-09-04|OutotecOy|Cyclone for separating particles from a fluid|
    CN109107787A|2017-06-22|2019-01-01|哈尔滨理工大学|U-shaped twin-bucket cyclone dust collectors|
    US10905998B2|2017-07-20|2021-02-02|Brett Evan Patrick|Process and apparatus to remove carbon-14 from carbon-dioxide in atmospheric gases and agricultural products grown in controlled environments|
    JP6597744B2|2017-09-29|2019-10-30|ダイキン工業株式会社|Oil separator|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB08707143A|GB2202468A|1987-03-25|1987-03-25|Cyclone|
    [返回顶部]