• 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 pressure-chamber grinder which comprises a grinder chamber (1) of substantially circular section, which chamber is provided with a feed opening (3) for the material to be ground, fed as a gas-tight plug, and the opposite end of which chamber is provided with an outlet opening (5) for the material ground. Tangentially directed grinding-gas nozzles (7) are fitted as uniformly spaced around the entire circumference of the mantle face (6) of the grinder chamber, or at least of part of same. The object of the present invention is to force the entire material flow to rush into every grinding zone. This has been achieved so that the grinder chamber (1) is, by means of a partition wall (8), divided into a pre-grinding chamber (9) and a grinding chamber (10) proper, the said chambers being interconnected by means of at least two Laval nozzles (11) passing through the partition wall and forming an angle with each other, whereat the material-gas jets rushing through these nozzles at a supersonic speed collide against each other at the outlet side of the Laval nozzles (11), thus forming there a grinding zone, to which zone the coarse fraction separated in a classifier (17) connected to the outlet opening (5) of the grinding chamber (10) is returned.
    公开号:SU1351512A3
    申请号:SU833614027
    申请日:1983-07-07
    公开日:1987-11-07
    发明作者:Ниеми Йоуко
    申请人:Йоуко Ниеми (FI)；
    IPC主号:
    专利说明:

    The invention relates to urticians for grinding materials, preferably talc, titanium oxide, carbon black, etc., to ultrafine particles.
    The purpose of the invention is to increase the efficiency of the grinding process.
    FIG. 1 shows a device side view; in fig. 2 is a section A-A in FIG. one. .
    The device for grinding materials contains a body 1 of predominantly circular cross section, tangentially located nozzles 2, loading 3 and unloading 4 nozzles, KL sifikator 5. Case 1 is divided into chambers 6 by preliminary partition 7 and final 8 by grinding. These chambers communicate with each other by means of at least two Loval 9 nozzles at an angle of 60-180, preferably 90-120 °, relative to each other.
    Classifier 5 is located between the nozzle Loval 9 and connected by pipe 10 with the discharge nozzle 4. Part of the chamber 8 final grinding in front of its outlet 11 may be made of a conical shape. The partition 6 can be made conical or concave in the direction of the pre-grinding chamber 7, while the inlet openings of the Loval nozzles t 9 can be located in the partition 6. In addition, additional partitions can be mounted in the pre-grinding chamber 7, at least half the height of the chamber 7 pre-grinding,
    A device for grinding materials operates as follows.
    The material to be crushed, n 5in the beginning. is compressed to a gas-tight tube and fed by means of a screw conveyor 12 through a loading nozzle 3 into the chamber 7 of pre-grinding, where it is. crushed by high-pressure gas jets fed through nozzles 2. Material-gas mixture supplied at supersonic speed through nozzles
    O

    0
    five
    thirty
    35
    40
    45
    50
    Loval 9 in chamber 8 of the final grinding. The crushed material enters through pipe 10 into classifier 5 to separate the coarse fraction from the mixture material — gas, which is returned to the final grinding in chamber 8 of the final grinding, and the finished product is removed through discharge port 4,
    权利要求:
    Claims (4)
    [1]
    1. A device for grinding materials comprising a body of predominantly circular cross section, tangentially arranged, uniformly fixed on the nozzle body, loading and unloading nozzles, classifier, characterized in that, in order to increase the efficiency of the grinding process, the body is divided by partition into a pre-chamber and a final grinding chamber, which are interconnected by means of at least two Loval nozzles passing through the septum. and located at an angle of 60-180 °, preferably 90-120, relative to each other, and the classifier is located between the Loval nozzles and is connected via a pipeline to the outlet of the final grinding chamber.
    [2]
    2. A device according to claim 1, characterized in that a part of the final grinding chamber is made conical in front of its outlet opening.
    [3]
    3 „Device according to nn. 1 and 2, characterized in that the partition is filled with a conical or concave shape in the direction of the pre-grinding chamber, while the inlet openings of the Loval nozzles are arranged in the partition,
    [4]
    4. The device according to PP. 1-3, characterized in that additional concentrically arranged partitions are mounted in the pre-grinding chamber, the height of which is equal to at least half the height of the pre-grinding chamber.
    / 1-4
    Editor P. Gereish
    Order 5302/59 Circulation 573 Subscription
    VIIIGSh State Committee of the USSR
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    (pU2.Z
    Compiled by N. Bibina Tehred A. Kravchuk
    Proofreader O. Kravtsov.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1351512A3|1987-11-07|Device for grinding materials
    US5496394A|1996-03-05|Cyclone separator
    US3602439A|1971-08-31|Pneumatic mill for extra-fine powder
    US4768721A|1988-09-06|Grinder housing for a pressure chamber grinder
    US3837583A|1974-09-24|Multi-stage jet mill
    US4792098A|1988-12-20|Improved impact plate grinding mill having reduced milling gas consumption
    US4653700A|1987-03-31|Disintegrator
    US4807815A|1989-02-28|Air-jet mill and associated pregrinding apparatus for comminuating solid materials
    GB671943A|1952-05-14|Process of and apparatus for fractionating mixtures of particles
    US4824030A|1989-04-25|Jet air flow crusher
    US3005594A|1961-10-24|Jet mills and the like
    SU1076141A2|1984-02-29|Jet mill
    RU2049558C1|1995-12-10|Jet mill
    GB1425482A|1976-02-18|Centrifugal separators
    RU2053031C1|1996-01-27|Centrifugal classifier
    RU24652U1|2002-08-20|Vortex Mill
    SU1636052A1|1991-03-23|Countercurrent jet mill
    SU1323142A1|1987-07-15|Apparatus for separating loose materials by size
    CA1198401A|1985-12-24|Pressure-chamber grinder
    SU1741930A1|1992-06-23|Centrifugal air passing separator
    SU1027020A2|1983-07-07|Head for cleaning outer surfaces of parts by abrasive action
    SU1331559A1|1987-08-23|Jet mill for milling
    SU1632509A2|1991-03-07|Air classifier
    SU1358147A1|1988-06-30|Milling installation
    SU445472A1|1974-10-05|Hydrocyclone for classification of granular material
    同族专利:
    公开号 | 公开日
    EP0080773A3|1986-02-05|
    US4546926A|1985-10-15|
    EP0080773A2|1983-06-08|
    AT42478T|1989-05-15|
    DK323383A|1983-07-13|
    DK323383D0|1983-07-13|
    WO1983001915A1|1983-06-09|
    FI63869C|1983-09-12|
    FI63869B|1983-05-31|
    DK153815B|1988-09-12|
    DE3279640D1|1989-06-01|
    DK153815C|1989-02-20|
    EP0080773B1|1989-04-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2672296A|1949-01-04|1954-03-16|Blaw Knox Co|Fluid impact pulverizer|
    US2612320A|1949-01-05|1952-09-30|Blaw Knox Co|Impact pulverizer|
    US2846151A|1953-08-17|1958-08-05|Bayer Ag|Selective disintegration and separation of pigments|
    US3186648A|1963-05-27|1965-06-01|Grace W R & Co|Fluid energy mill|
    US3312342A|1964-03-27|1967-04-04|Du Pont|Process and apparatus for impacting and elutriating solid particles|
    DE1298393B|1965-09-21|1969-06-26|Fluid Energy Proc And Equipmen|Jet mill for crushing and dispersing solids in a carrier liquid|
    US3643875A|1969-06-27|1972-02-22|Texaco Inc|Fluid energy grinding method and system|
    US3675858A|1970-06-18|1972-07-11|Hewlett Packard Co|Angular impact fluid energy mill|
    GB1329941A|1972-01-05|1973-09-12|Texaco Development Corp|Fluid energy grinding method and system|
    GB1422105A|1974-05-17|1976-01-21|Fluid Energy Process Equip|Process and apparatus for mixing pulverizing and grindingblack powder|
    US4056233A|1976-10-01|1977-11-01|Fay Edwin F|Apparatus for pulverizing solid materials|
    US4304360A|1979-12-31|1981-12-08|International Business Machines Corporation|Xerograhic toner manufacture|FI72897C|1983-03-04|1987-08-10|Finnpulva Ab Oy|Inlet device for a pressure chamber mill facility.|
    FI69255C|1984-10-12|1986-01-10|Finnpulva Ab Oy|MATERINGS FOERFARANDE OCH -ANORDNING FOER EN TRYCKKAMMARKVARN|
    FI74222C|1985-09-18|1988-01-11|Finnpulva Ab Oy|KVARNHUS FOER TRYCKAMMARKVARN.|
    US5476093A|1992-02-14|1995-12-19|Huhtamaki Oy|Device for more effective pulverization of a powdered inhalation medicament|
    US5855326A|1997-05-23|1999-01-05|Super Fine Ltd.|Process and device for controlled cominution of materials in a whirl chamber|
    HRP980257B1|1997-05-28|2002-08-31|Messer Griesheim Gmbh|Apparatus and method for conducting reactions in fluidized particle layers|
    CA2212430A1|1997-08-07|1999-02-07|George Volgyesi|Inhalation device|
    US6038987A|1999-01-11|2000-03-21|Pittsburgh Mineral And Environmental Technology, Inc.|Method and apparatus for reducing the carbon content of combustion ash and related products|
    EP1282180A1|2001-07-31|2003-02-05|Xoliox SA|Process for producing Li4Ti5O12 and electrode materials|
    US6789756B2|2002-02-20|2004-09-14|Super Fine Ltd.|Vortex mill for controlled milling of particulate solids|
    WO2003076338A1|2002-03-08|2003-09-18|Altair Nanomaterials Inc.|Process for making nono-sized and sub-micron-sized lithium-transition metal oxides|
    KR20080063511A|2005-10-21|2008-07-04|알타이어나노 인코포레이티드|Lithium ion batteries|
    WO2008121660A2|2007-03-30|2008-10-09|Altairnano, Inc.|Method for preparing a lithium ion cell|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI813812A|FI63869C|1981-11-27|1981-11-27|TRYCKKAMMARKVARN|
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