• 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:
    Air-jet mill provided with pregrinding chamber and inner sizer suitable for fine grinding (below 10 mu ) furthermore for cryogenic grinding and in a given case for surface treatment during grinding of preferably hard, elastic and/or thermoplastic materials. The facility representing the invention is an energy-saving unit, it does not comprise any moving components being exposed to heavy wear, has an inner sizer forming an integral part of the grinding space the former making use of the energy left after grinding in the system thus enabling a sharp sizing of fine fractions.
    公开号:SU1582977A3
    申请号:SU864028585
    申请日:1986-12-02
    公开日:1990-07-30
    发明作者:Чиллаг Жолт；Сентдьердьи Геза；Шолимар Карой；Кальман Тибор；Тот Пал；Рошенманн Ференц；Штайнер Янош；Морзал Янош；Жембери Ласло；Лайтаи Бела；Легат Тибор；Шиткеи Ференц；Валло Ференц；Сабо Балинт；Молнар Габор；Цафит Шандор
    申请人:Мадьяр Алюминиумипари Трест (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to the design of jet mills for the fine grinding of materials and can be applied in the chemical, construction, mining and other industries.
    The purpose of the invention is to increase the efficiency of grinding and separation - material a.
    FIG. 1 shows one of the embodiments of the aerodynamic jet mill, the cross section; in fig. 2 shows section A-A in FIG. on
    FIG. 3 is a sectional view of another possible device, section; in fig. 4 - loading system, longitudinal section.
    FIG. Figures 1 and 2 show one of the possible variants of the construction of an aerodynamic jet mill made in accordance with the present invention. Three pre-grinding chambers 1 are connected to the grinding chamber 2. The intersecting ejectors 3 are located in the ejector casing 4, and the injection ejectors 5 are connected
    ate
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    Yu
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    Oi
    I
    2
    with a pre-crush zone 6, which in turn is associated with a wear-resistant device for the separation of comminuted grains through the loading channels 7. The Lovel profile is implemented in the loading channels. The pre-grinding device is connected to the grinding area by the blowing port 8 and the return channel. Arrivals, comminuted material 9, Peripheral grinding ejectors 10 are located symmetrically in the grinding chamber, which can pivotally rotate in a horizontal plane by rotating the corresponding angle setting mechanism 11, Wear-resistant particle separation device 12 and adjustable fence are located in the grinding chamber 2 of the blades 13, bb-expanding angle for the installation of the angle of the blades is a gear rim 14 and the head 15 The discharge head 16 is located coaxially with the body 17 jet oh aerodynamic mill. The device is also equipped with heads 18 of the load of the crushed material and heads 19 of the air supply
    FIG. Figure 3 shows another variation of the aerodynamic jet mill design, where the pre-grinding chamber has a simpler design. The axes of the intersecting ejectors 3 are located in the ejector bodies 4, are set at angles of 150-180 ° relative to each other (the preferred angle is 150e). The composition of the pre-grinding chamber also includes three blowing pipes for each ejector, respectively. The installation angles of the intersecting ejectors should be selected depending on the size of the pre-grinding zone in such a way that the velocity vector of the pre-crushed material is directed toward the grinding zone. The design of the grinding chamber body 2 of the peripheral grinding ejectors 10 of the adjustable blade guard 13, as well as the device for loading the grinding material is exactly the same as in the considered embodiment. FIG. 4 shows the feed system of the material to be ground. Bunker dl. Storage of the material to be shredded 20 is equipped with adjustable louvers 21. Shredded
    3
    five
    five


    the material flows from the hopper to the disk feeder 22, which vibrates under the influence of the eccentric block 23. This results in an even distribution of the material that is suppressed to the crushing along the disk feeder and along the feed hoppers 24 The feed hoppers 24 are connected to the feed heads of the comminuted material. 18,
    The main advantage of a jet aerodynamic mill made in accordance with the present invention is that, in contrast to the known devices, such a mill makes it possible to obtain by grinding a grain smaller than 10 microns. In addition, it allows the low-temperature grinding of thermoplastic materials, as well as simultaneously with the grinding to produce surface treatment of the materials to be ground. This design uses energized energy. This is achieved by appropriately selecting the (new) shape of the embedded device for separating the grains of the material to be ground according to their size. As a result, the efficiency of using the grinding energy in such a structure increases by about 1.5 times compared with the known devices. It does not contain any moving structural elements that can be subjected to heavy wear, and the only contour structural element (separator of the crushed grains by their sizes in the device of preliminary grinding of material), which is subject to the greatest wear, can be easily and inexpensively replaced. on new.
    权利要求:
    Claims (5)
    [1]
    1. A jet aerodynamic mill for fine grinding, surface treatment and / or low-temperature grinding, containing a grinding chamber connected by blower tubes to pre-grinding chambers, peripheral grinding ejectors located in the grinding chamber, a discharge device installed coaxially with the grinding chamber. for separation of particles, characterized in that, with the aim of higher
    neither the efficiency of grinding and material separation, each pre-grinding chamber is connected to the grinding chamber through a tangentially located feed channel and material return channel, while the peripheral grinding ejectors are symmetrically arranged around the grinding chamber circumference, and the pre-grinding chambers are made with additional ejectors mounted in ejector bodies ,
    [2]
    2. The mill according to claim 1, that is, that the grinding chamber is made in the form of a cylinder in the lower part and a hyperboloid of rotation in the upper part, in the grinding chamber, mounted with the axis in the grinding chamber driven angle elements.
    but
    0
    [3]
    3. Mill on the PP. 1 and 2, about m-2, characterized in that the three or more additional ejectors are located at an angle of preferably 90-180 ° with respect to each other and are made adjustable in the axial direction.
    [4]
    4. Mill on PP. 1-3, characterized in that the peripheral grinding ejectors are removable and can be rotated in the horizontal plane.
    [5]
    5. Mill on PP. 1-4, characterized in that the inner surface of the pre-grinding chamber and the grinding chamber are made of high-strength material, predominantly synthesized corundum, any carbides, or of steel reinforced with refractory glass.
    GO
    类似技术:
    公开号 | 公开日 | 专利标题
    US4390131A|1983-06-28|Method of and apparatus for comminuting material
    JP2532231B2|1996-09-11|Energy efficient grinding method and apparatus
    KR900000884B1|1990-02-17|Vertical roller mill
    SU1582977A3|1990-07-30|Jet-type aerodynamic mill
    US5154362A|1992-10-13|Apparatus for crushing brittle material for grinding
    US4109871A|1978-08-29|Method and apparatus for processing abrasive material
    CA2075919A1|1993-02-07|Fluidized impact mill
    CN105312144A|2016-02-10|Ultra-micro airflow grading mill
    US5333798A|1994-08-02|Method and system for pounding brittle material
    CN209423734U|2019-09-24|A kind of multiple groups tup micronizer
    US5129586A|1992-07-14|Compound grinding apparatus
    CN2147900Y|1993-12-01|Supersonic airstream superfine milling classer
    JPH057792A|1993-01-19|Crushing equipment
    JPH0515805A|1993-01-26|Grinding device
    US2620987A|1952-12-09|Air swept partitioned tube mill
    CN1168540C|2004-09-29|Oscillating and vibrating ball mill
    KR970006854Y1|1997-07-09|Selective separation of solid materials for pulverizer
    USRE25965E|1966-02-22|Apparatus for delaminating laminar minerals
    CN207872318U|2018-09-18|Grater
    KR0167010B1|1999-01-15|Method and apparatus for reducing fine grain particles by means of compressed fluid
    CN210474149U|2020-05-08|Fluidized bed fluid energy mill
    SU1766509A1|1992-10-07|Mill for fine grinding of materials
    SU893252A1|1981-12-30|Percussion-action mill
    SU1570761A1|1990-06-15|Arrangement for grinding
    US4196860A|1980-04-08|Pulverizing and classifying apparatus with improved tailings and contaminant take-out control
    同族专利:
    公开号 | 公开日
    HU196323B|1988-11-28|
    FI82616C|1991-04-10|
    FI864882A0|1986-12-01|
    FI864882A|1986-12-01|
    US4807815A|1989-02-28|
    HUT42351A|1987-07-28|
    EP0218671B1|1990-05-23|
    EP0218671A1|1987-04-22|
    WO1986005717A1|1986-10-09|
    DE3671391D1|1990-06-28|
    JPS62502953A|1987-11-26|
    FI82616B|1990-12-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2005018811A1|2003-08-26|2005-03-03|Aleksandr Kurochka|Material breaking device|AT135713B|1932-02-12|1933-12-11|Paul Anger|Device for sifting in air jet impact mills.|
    US3229918A|1963-06-05|1966-01-18|Helme Products Inc|Fluid grinding mill with interchange-able liners|
    US3559895A|1968-02-20|1971-02-02|Edwin F Fay|Apparatus for and method of comminuting solid materials|
    CH584069A5|1974-05-08|1977-01-31|Micro Mecinazione Sa|
    FR2311588B1|1975-05-23|1978-06-09|Inst Francais Du Petrole|
    DE2523471C2|1975-05-27|1983-03-17|Gosudarstvennyj Vsesojuznyj naučno-issledovatel'skij institut cementnoj promyšlennosti Niicement, Moskva|Treatment plant for bulk goods|
    DE2543691C2|1975-09-30|1984-01-19|Gosudarstvennyj Vsesojuznyj naučno-issledovatel'skij institut cementnoj promyšlennosti Niicement, Moskva|Jet mill|
    DE3140294C2|1981-10-10|1983-11-17|Alpine Ag, 8900 Augsburg|Method and device for separating a material mixture into components of different grindability|
    US4504017A|1983-06-08|1985-03-12|Norandy, Incorporated|Apparatus for comminuting materials to extremely fine size using a circulating stream jet mill and a discrete but interconnected and interdependent rotating anvil-jet impact mill|GB8720904D0|1987-09-05|1987-10-14|Tioxide Group Plc|Mill|
    DE3833830C2|1988-10-05|1991-11-07|Messer Griesheim Gmbh, 6000 Frankfurt, De|
    US5542613A|1992-12-10|1996-08-06|Nied; Roland|Process for impact crushing of solid particles|
    US5637344A|1995-10-20|1997-06-10|Hershey Foods Corporation|Chocolate flavored hard candy|
    US20080026955A1|2006-07-25|2008-01-31|Halliburton Energy Services, Inc.|Degradable particulates and associated methods|
    US9114114B2|2007-06-21|2015-08-25|Mars, Inc.|Edible products having a high cocoa polyphenol content and improved flavor and the milled cocoa extracts used therein|
    TW201446329A|2013-03-11|2014-12-16|道達爾研究及技術弗呂公司|Process for producing fine, morphologically optimized particles using jet mill, jet mill for use in such process and particles produced|
    CN106113326A|2016-08-03|2016-11-16|平湖市永光机械配件有限公司|A kind of plain grinding joint of fine pulverizer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    HU851272A|HU196323B|1985-04-03|1985-04-03|Air-jet mill for fine and/or cryogenic grinding, surface treating advantageously hard, elastic and/or thermoplastic matters|
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