• 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:
    This invention relates to a dry classification in a centrifugal zone with the preliminary dispersion of fine-grained materials into coarse and fine fractions. The goal is to improve the quality of the separation. For this purpose, with a gap relative to the screening installed inside the flat-cylindrical stationary body 1 of the wheel / K / 2, the K 7 dispersion is installed with a rod and / or paddle-shaped dispersing elements 8. The latter are arranged in concentric rows in the gap on the surfaces K 7 and 2 and divide the gap area into communicating between themselves and from the inside of K 2 between the blades of the rims 3 and 4 the working chamber / RK / 5 of the dispersion zone 11 and the deviation 12. On the K 2 in the zone 12 directly above the RK 5 is set to additional blade crown 9. At the same time, K 7 is installed stationary or with the possibility of adjustable rotation in two directions. Pipe / П / 13 is connected with zone 11 for supplying material. Through P 16 in RK 15 air is supplied. Between the P 13 and the housing 1 there is an additional P 14 for secondary air. The screened material after passing dispersing elements 8 deviates in zone 12 and enters at an angle of ≤ 120 ° with respect to the former radical direction in RK 5. Coarse material is thrown out through P 17, and the fine material together with the screening air is transported in axial proximity to K 2 and output through P 18. 7 p.p. f-ly, 3 ill.
    公开号:SU1500394A1
    申请号:SU864028747
    申请日:1986-12-25
    公开日:1989-08-15
    发明作者:Хусеманн Клаус；Херрманн Роланд；Томас Гюнтер；Шайбе Вольфганг；Бернхардт Клаус；Ульманн Йоханнес；Раатц Винфрид；Ферх Хартмут
    申请人:Феб Швермашиненбау-Комбинат Эрнст Тельманн Магдебург (Фирма)；
    IPC主号:
    专利说明:

    / i-.
    with
    CD 4:
    -myoz
    2 Fiv1
    ri K 2 between the blade crowns 3 and 4 by the working chamber (RC) 5 of the dispersion zone 11 and deflection 12. On the K 2 in zone 12 directly above the RC 5 there is an additional blade rim 9. At the same time, K 7 is installed stationary or with the possibility of adjustable rotation in two directions. Pipe (P) 13 is communicated with zone 11 for the supply of material. Through P 16 in RK 15 air is supplied. Between the P 13 and the housing 1 there is an additional P 14 for secondary air. The screened material, after passing dispersing elements 8, deviates in zone 12 and enters at an angle of 120 ° relative to the former radial direction in RK 5. The coarse material is thrown out through P 17, and the fine material together with the screening air is transported in axial proximity to K 2 and removed through P 18. 7 hp f-ly, 3 ill.
    The invention relates to a dry classification in a centrifugal zone with preliminary dispersion of fine-grained materials, preferably 40, into coarse and fine fractions.
    FIG. 1 shows a separator, cut, side view; Fig. 2 shows the zone of deviation of the separator; in fig. 3 - blades of the outer blade ring.
    The separator includes a flat-cylindrical stationary body 1, inside of which is located the screening wheel 2, two blade rims 3 and 4 Between the rims 3 and 4 there is a working chamber 5 for receiving the material to be screened. On the loading side, on the outer side 6 of the screening wheel 2 and on the outer side of the loading side of the restriction wall of the dispersion wheel 7, the finger-, rod-, and / or blade-like fender, impact or respectively dispersing elements 8 are circumferentially interacting with each other in a manner similar to the design and In the rod mill, the dispersion wheel 7 is arranged stationary and / or variationally turning in both directions of rotation. Immediately in front of the chamber 5, there is a blade 9, the blades of which are preferably made as partitions between the elongated holes, and the restrictive walls 10 for supplying the screened material after the dispersion zone 11 in the region of the deflection zone 12 have a very small distance and rotate with the screening wheel 2.
    five
    0 5 0 d
    0
    five
    The blades of the outer blade crown 3 on the sieving wheel 2 are made as elements with a cross section in the shape of a circular sector or a circular segment and are arranged in the radial direction directly or at the radial inner edge on the outer edge up to 45 against the direction of rotation obliquely to the radial direction and at some distance relative to each other, which is at least equal to two times the distance between the blades of the inner blade crown 4 on the screening wheel 2.
    The supply for the material through the housing 1 is made as a nozzle 13 with an adjustable distance relative to the sieving wheel 2, and between the nozzle 13 and the housing 1 there is an additional nozzle 14 for secondary air. Between the housing 1 and the screening wheel 2, the dispersing wheel 7 and / or the restriction wall 10 are arranged, rotating jointly ventilating vanes 15 which are inclined and / or curved, preferably in the direction of rotation.
    The angle in the deflection zone p (figure 2) determines the direction of entry of the screened material into the working chamber and is set by the inclination of the upper part of the bounding wall of the rotary zone. For example, with / i 90, the material being screened enters the working chamber parallel to the axis of the air separator. Depending on the technological parameters (for example, mass yield, mass of working air in the air separator) may be a desirable deviation from this direction and the direction of the sifted matter in the direction of discharge of the coarse fraction (p: 90 °) or in the direction of discharge of the fines fraction (/ 3 90) into the working chamber
    The angle of the blades of the outer blade of the crown (presented in detail in Fig. 3,
    Despite the larger gap between the blades of the blade rim 15 as compared to the gap between the blades of the blade rim 13 (see FIG. 3), this larger gap is sufficient to accelerate the primary working air in the air separator to form a stable vortex ring.
    The device works as follows.
    The sifting gas flows in a tangential direction through the volume of the housing 1 through the pipe 16 to supply air to the chamber 5 and is radially supplied to the rotating screening wheel 2. The screened material passes through the pipe 13 axially into the housing 1, then after passing around the fender, drums or respectively dispersing elements 8, which relative to each other have a speed (dispersion zone 11), deviates in the deflection zone 12 and travels at an angle of 120 ° relative to the previous radial direction neither into the chamber 5 sifting. The coarse material is thrown out against the direction of the air flow of the sieving and through the volume of the housing 1 through the nozzle 17 for the coarse fraction is removed for subsequent use, while the fine material together with the air of the sieve is transported in the axial proximity of the sieve wheel 2, is removed through the nozzle 18 the fines and air of the screening are removed and separated from the air of the screening in the subsequent separation devices.
    权利要求:
    Claims (8)
    [1]
    1. A centrifugal air separator containing a sieve wheel mounted for rotation inside a flat-cylindrical stationary body, in the cavity of which the working chamber is located,
    five
    0
    five
    0
    five
    0
    five
    0
    five
    Which increases in the direction of flow of the light fraction, and the external and internal blades of the rims, the blades of which are located in the radial direction, tangential nozzle for supplying air into the working chamber and branch pipes for supplying material and large and small fractions from the working chamber, differing In order to improve the quality of the separation, the separator is equipped with a dispersing wheel installed with a clearance relative to the screening wheel, a rod and / or paddle-shaped dispersing elements dispersed and sifted in the gap on the surfaces of the wheels of the dispersion and sieving wheels facing one another and dividing the gap area into a dispersion zone and a deviation zone between each other and with the working chamber, and an additional blade crown mounted on the sifter wheel in the zone deviation directly in front of the working chamber, at. This dispersing wheel is installed stationary or with the possibility of adjustable rotation in two directions, and the nozzle for supplying material is in communication with the dispersion zone.
    [2]
    2. Separator pop. 1, characterized in that the blades of the outer blade ring are mounted perpendicularly (vertically) or at an angle of 45 against the direction of the working rotation of the sieving wheel
    and are spaced from each other at a distance of at least double the distance between the shoulder blades of the inner shoulder crown.
    [3]
    3. Separator on the PP. 1 and 2 o t - characterized in that the blades of the outer blade ring are made in cross section in the form of a circular sector.
    [4]
    4. Separator on PP. 1-3, characterized in that the outer edges of the blades of the outer blade ring are angled relative to the inner edges in the direction that the anti-burner direction of the working rotation of the sieving wheel.
    [5]
    5. Separator on the PP. 1 and 2, about t - lich-ayus with the fact that blades of an external scapular crown are executed
    in cross section in the form of a circular segment.
    [6]
    6. Separator for .pp. 1-5, characterized in that it is provided with an additional air inlet pipe installed between the flat-body and the material inlet pipe.
    [7]
    7. Separator of PP, 1-6, characterized in that the pipe for
    the supply of material is installed with the possibility of longitudinal movement
    [8]
    8. Separator on the PP. 1-7, which is provided in that it is provided with ventilation blades installed with the possibility of joint rotation on the dispersion wheel and the sieving wheel on the side of the flat-cylindrical body.
    Fig.Z
    类似技术:
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    GB1154358A|1969-06-04|Improvements in or relating to methods of and apparatus for the Classification of Materials
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    US2656988A|1953-10-27|Centrifugal milling and insect destroying machine with rotary impeller and annular target
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    US5232096A|1993-08-03|Material dispersion apparatus
    US2030612A|1936-02-11|Air separator
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    US5791490A|1998-08-11|Separator for particulate materials
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    RU2232050C1|2004-07-10|Grinder
    GB1228215A|1971-04-15|Screening device
    RU21876U1|2002-02-27|INSTALLATION AND JET-ROTOR GRINDING CAMERA FOR GRINDING
    RU2592933C2|2016-07-27|Centrifugal classifier
    同族专利:
    公开号 | 公开日
    DD248970A1|1987-08-26|
    JPH0420669B2|1992-04-06|
    DE3638915C2|1989-01-12|
    JPS62168556A|1987-07-24|
    DE3638915A1|1987-07-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2013148679A1|2012-03-26|2013-10-03|Centrifugal And Mechanical Industries, Llc|Centrifugal separator with circular rotor blades|
    RU2628798C1|2016-12-22|2017-08-22|федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова"|Disintegrator|
    RU2630450C1|2016-06-29|2017-09-08|федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова"|Disintegrator|DE894803C|1947-02-07|1953-10-29|Alpine A G Eisengiesserei|Device and method for air classification|
    DE892266C|1948-10-02|1954-04-05|Alpine Ag Eisengiesserei & Mas|Air separator|
    DE834319C|1948-12-10|1952-03-17|Alpine A G Eisengiesserei Und|Spin inspection process|
    GB1114314A|1964-12-11|1968-05-22|Ass Portland Cement|Improvements in or relating to centrifugal air classifiers|
    US3491879A|1967-04-18|1970-01-27|Donaldson Co Inc|Centrifugal classifier|
    JPH0462794B2|1982-06-30|1992-10-07|Nitsushin Seifun Kk|
    US4604192A|1983-05-18|1986-08-05|Nisshin Flour Milling Co., Ltd.|Powder classifier|
    JPH046425B2|1983-05-18|1992-02-05|Nitsushin Seifun Kk|DE3838871C2|1988-01-22|1994-10-27|Nied Roland|Air classifier|
    EP0369399B1|1988-11-17|1994-08-10|Roland Dr.-Ing. Nied|Wind sifter|
    JPH03135482A|1989-10-20|1991-06-10|Onoda Cement Co Ltd|Pneumatic classifier|
    US5252110A|1990-08-01|1993-10-12|Roland Nied|Preferably vertical air separator|
    DE4416034A1|1994-05-06|1995-07-06|Krupp Foerdertechnik Gmbh|Sifting method for fine-grain material|
    JPH10370A|1996-06-13|1998-01-06|Kansai Matetsuku Kk|Pulverizing pin type pulverizer|
    EP0836893B1|1996-10-18|2002-12-11|HOSOKAWA ALPINE Aktiengesellschaft & Co. OHG|Pneumatic classifier with vertical axis|
    DE19643042C2|1996-10-18|1998-07-30|Hosokawa Alpine Ag|Vertical axis air classifier|
    JP4891574B2|2004-10-14|2012-03-07|ホソカワミクロン株式会社|Crusher and powder manufacturing method using the crusher|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD28582585A|DD248970A1|1985-12-31|1985-12-31|centrifugal separator|
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