• 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 invention relates to a crusher comprising two juxtaposed rotors of the crusher (4, 5) with crusher teeth (6, 7) on their peripheries, counterpart structures (8, 9) located on the side walls (3) of the crusher frame (Fig. 1) and cooperate with said comminuting teeth, and has screen sets (10, 11) below each rotor of the comminutor to screen the comminuted material in a predetermined particle size out of the comminutor. The first rotor of the crusher (4) is for coarse crushing, and the second rotor of the crusher (5) is for fine crushing, and consequently they are provided with different size crusher teeth (6, 7), and correspondingly different counterpart structures (Figs. 9) are provided with counterparts of different sizes, with mesh sizes in the sieve sets (10, 11) below each rotor of the crusher being chosen with the intention of producing a product corresponding to the requirement set for the final particle size.
    公开号:AT14416U1
    申请号:TGM9003/2012U
    申请日:2012-03-23
    公开日:2015-11-15
    发明作者:Jarkko Ing Nurmi
    申请人:Bmh Technology Oy；
    IPC主号:
    专利说明:

    description
    CUTTER
    BACKGROUND OF THE INVENTION
    The invention relates to a crusher, comprising: a box-like frame of the crusher, which frame includes two rear walls and two side walls connecting the rear walls; two juxtaposed rotors of the crusher, which rotors are supported for rotational movement within the frame of the crusher on the rear walls thereof; the peripheries of the crusher's two rotors having a plurality of comminuting teeth, and the sidewalls of the comminuting frame having counterpart structures cooperating with the comminuting teeth of both the crusher's rotors and the material to be fed into the comminutor, between the comminuting teeth of the rotors the crusher and the counterpart structures are crushed when the rotors of the crusher are rotated; a feed point for the material to be shredded in the upper part of the frame of the crusher; and sieve sets below each rotor of the crusher, which are located at a selected distance from the teeth of the rotor of the crusher and arranged to extend in a predetermined angular range of each rotor of the crusher to the shredded material in a predetermined particle size from the crusher to sift out.
    There are known crushers with two rotors, wherein the rotors are identical in the crusher. In that case, the rotors may be mirror images of each other, rotate at the same speed, and operate independently at the same time (in the same direction, in different directions, changing direction, etc.).
    Typically, the material to be shredded, for example the starting material, is comminuted with a large dimension or a large particle size in a shredder shredder at a slow speed. This crusher provided with coarse-toothed rotors of the crusher does not provide a sufficiently small particle size in the final product, although the gripping in the feedstock and the capacity are good.
    Where, if provided with feinzähnigen rotors of the crusher crusher is used, the rotors grip the starting material in most cases poorly, which is often large dimensions, such as wood or stumps. In addition, a finer toothing is weaker, taking into account impurities, such as stones or the like, which are often present in the starting material. Fine material, such as sand, unnecessarily uses the gearing, which sifted fine material in a coarse-toothed crusher in the earliest initial stages.
    In order to compensate for poor gripping, it is often necessary to feed an additional amount of starting material to the rotors, which serves as a weight. This causes additional wear of the rotors and power consumption. In addition, shutdown of the crusher caused by impurities results in a cumbersome cleaning operation of the crusher jaw.
    SUMMARY OF THE INVENTION
    The invention is to further develop a crusher of the type described above in such a way that the aforementioned problems are solved. This is achieved with a crusher according to the invention, characterized in that a rotor of the crusher for comminuting and a rotor of the crusher for fine comminuting is provided, and that the different rotors of the crusher are provided with comminuting teeth of different sizes, and accordingly , Various counterpart structures are provided with counterparts of different sizes, and that the mesh size of the sieve sets are selected below the rotors of the crusher with the intention to produce a product according to the requirement set for the final particle size requirement. The preferred embodiments of the invention are disclosed in the dependent claims.
    The invention is thus based on a combination of a coarse shredder and a fine crusher. The crushing of a source material is performed against the counterpart structures located on the sidewalls of the frame of the crusher, the rotors rotating in the direction of the sidewalls. The rotors are only rotated in the direction of the center in order to break up resulting material arcs, if any, or to remove overloading. The particle size of the final product is determined by the sieve sets below the rotors.
    The material to be crushed is fed on the side of the rotor with the coarser teeth. Oversized material that has not passed through the sieve set below the rotor rises up from the center of the rotor and undergoes similar comminution treatment with the finer tooth rotor.
    DIRECTORY OF THE FIGURES
    The invention will now be described in more detail by means of a preferred embodiment with reference to the accompanying drawing, which shows a simplified cross-sectional view of a crusher according to the invention.
    DETAILED DESCRIPTION OF THE INVENTION
    With reference to the drawing, a crusher according to the invention is shown, by way of example and in a highly simplified manner, where the crusher comprises a box-like frame 1 with two back walls 2 (only the rearmost being visible) and two, the back walls has connecting side walls 3. Within the frame of the crusher 1, on the rear walls 2 there are two adjacent rotors of the crusher 4 and 5, which are operated with conventional triggers, that is, are rotated, which are not shown. On the peripheries of the two rotors of the crusher 4 and 5, a plurality of crusher teeth 6 and 7 are present, and on the side walls 3 of the frame of the crusher 1 there are counterpart structures 8 and 9, with the respective crusher teeth 6 and 7 of each rotor of the Crusher 4 and 5 interaction. The material to be fed into the crusher, for example the starting material F, is to be comminuted between the crusher teeth 6 and 7, the rotors of the crusher 4 and 5 and the counterpart structures 8 and 9, while the crushers of the crusher 4 and 5 in the direction of Drawing shown arrows are rotated. In addition, sieve sets 10 and 11 are below each rotor of the crusher 4 and 5 at a selected distance from the teeth 6 and 7 of the rotors of the crusher 4 5 and 5, and are arranged to extend into a selected angular range of each rotor of the crusher 4 and 5 to sift the shredded material in a predetermined particle size out of the crusher.
    The special feature of this crusher is that a first rotor of the crusher 4 for coarse crushing and a second rotor of the crusher 5 is provided for fine crushing, and consequently, these rotors of the crusher 4 and 5 with shredding teeth 6 and 7 different sizes and correspondingly, counterpart structures 8 and 9 are provided with counterparts of different sizes suitable for cooperating with the above-mentioned comminuting teeth 6 and 7; and that the mesh size of the sieve sets 10 and 11 below each rotor of the crusher 4 and 5 are chosen with the intention of producing a product according to the set final particle size requirement. Of course, the feed point 12 for the material to be shredded, for example the starting material F, is thus placed at and above the rotor of the crusher 4 for coarse shredding.
    As already stated above, the crushing of the starting material F is performed against the counterpart structures 8 and 9, wherein the rotors 4 and 5 rotate in the direction of the side walls 3. The rotors 4 and 5 are only rotated in the direction of the center, in order to break up resulting material sheets, if any, or to remove overload. The particle size in the final product is determined by sieve sets 10 and 11. Oversized material which has not passed through the sieve set 10 below the rotor 4 rises upward from the center of the rotors 4 and 5 and is subjected to a similar crushing treatment with the finer teeth rotor 5.
    Preferably, the sieve sets 10 and 11 extend from below the counterpart structures 8 and 9 to the area between the rotors 4 and 5 approximately up to the height of the axes of the rotors 4 and 5, and are connected to a shaped central beam 13 which extends between the rotors 4 and 5 and are supported on the end walls 2 of the frame of the crusher 1.
    Each rotor of the crusher 4 and 5 may be arranged to function independently, whose diameter may be substantially the same size, or, if desired, of different size. Accordingly, their rotational speeds may be the same or different. Also, the mutual axis plane of the rotors of the crusher 4 and 5 can be modified. All the parameters mentioned above are chosen according to each particular starting material F, the desired end product and the situation in question.
    The above description of the invention is intended only as an illustration of the basic idea of the invention. A person skilled in the art can thus vary their details within the scope of the appended claims.
    权利要求:
    Claims (10)
    [1]
    Claims 1. A crusher comprising: a box-like frame of the crusher (1) including two back walls (2) and two side walls (3) connecting the back walls; two juxtaposed rotors of the crusher (4, 5) which are supported for rotational movement within the frame of the crusher (1) on the rear walls (2) thereof; the peripheries of the two rotors of the crusher (4, 5) having a plurality of crusher teeth (6, 7), and the sidewalls (3) of the frame of the crusher (1) having counterpart structures (8, 9) with the respective crusher teeth (6, 7) of both rotors of the crusher (4, 5), and the material (F) to be fed to the shredder is arranged between the crusher teeth (6, 7) of the rotors of the crusher (4, 5) and the counterpart structures (FIG. 8, 9) to be crushed when the rotors of the crusher (4, 5) are rotated; a feed point (12) for the material to be shredded in the upper part of the frame of the crusher (1); and sieve sets (10, 11) below each rotor of the crusher (4, 5), at a selected distance from the teeth (6, 7) of the rotors of the crusher (4, 5) and arranged in a selected angular range of each rotor of the crusher (4, 5) to sieve the shredded material in a predetermined particle size out of the crusher, characterized in that one rotor of the crusher for coarse crushing and another rotor of the crusher (5) for fine Crushing is provided, and the different rotors of the crusher (4, 5) are provided with crusher teeth (6, 7) of different sizes, and accordingly, different counterpart structures (8, 9) are provided with counterparts of different sizes, and that the mesh size in sieve sets (10, 11) are selected below the rotors of the crusher (4, 5) with the intention of producing a product corresponding to the final particle size set requirements to produce.
    [2]
    2. The crusher according to claim 1, characterized in that the feed point (12) for the material to be shredded is located at and above the rotor of the crusher (4) for coarse shredding.
    [3]
    3. The crusher according to claim 1 or 2, characterized in that the sieve sets (10, 11) extend from below the counterpart structures (8, 9) to an area between the rotors (4, 5) approximately at the height of the axes the rotors (4, 5) and that they are connected to a shaped central beam (13) running between the rotors (4, 5) and supported on the rear walls (2) of the frame of the crusher (1).
    [4]
    4. The crusher according to one of the preceding claims, characterized in that both rotors of the crusher (4, 5) are arranged to act independently.
    [5]
    5. The crusher according to one of the preceding claims, characterized in that the diameters of the rotors of the crusher (4, 5) are substantially equal in size.
    [6]
    6. The crusher according to one of the claims 1 to 4, characterized in that the diameters of the rotors of the crusher (4, 5) are of different sizes.
    [7]
    7. The crusher according to one of the preceding claims, characterized in that the rotational speeds of the rotors of the crusher (4, 5) are substantially equal.
    [8]
    8. The crusher according to one of the claims 1 to 6, characterized in that the rotational speeds of the rotors of the crusher (4, 5) are different.
    [9]
    9. The crusher according to one of the preceding claims, characterized in that the axes of the rotors of the crusher (4, 5) are located substantially on the same plane.
    [10]
    10. The crusher according to one of the preceding claims, characterized in that the axes of the rotors of the crusher (4, 5) are located at different levels. For this 1 sheet drawings
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2191901B1|2018-12-05|Pulveriser and method for operating same
    EP0406644B1|1994-11-30|Air current-roller mill
    DE102012216914B4|2017-01-05|comminution device
    DE202010014030U1|2012-01-09|Mallets with a cutting insert and a base body
    EP2024091B1|2012-12-12|Roller press, in particular for interparticle crushing
    DE202012007418U1|2013-11-04|comminution device
    DE2730188A1|1979-01-25|SHREDDING MACHINE
    DE212012000029U1|2013-09-10|shredder
    DE202010010294U1|2011-12-20|Knife carrier for crushers
    EP1909976B1|2012-03-14|Screening device
    EP1899072A1|2008-03-19|Shredding device
    EP2537588B1|2016-04-06|Shredder with knives having multiple cutting blades
    EP2062645B1|2013-05-22|Grinding device
    DE202014000870U1|2015-05-06|comminution device
    WO2017162230A1|2017-09-28|Twin roller crusher
    EP2054156B1|2014-03-05|Roller mill
    WO2017201557A1|2017-11-30|Knife for a comminuting machine
    DE202019103103U1|2019-06-14|roll crusher
    DE102011000018A1|2012-07-05|More roll crusher
    WO2015158593A1|2015-10-22|Comminuting device
    DE3416009A1|1985-10-31|Machine for the comminution of maize, CCM or moist grain and process for the use of the machine
    AT517282A1|2016-12-15|Grinding device for grinding regrind
    DE4328687A1|1995-03-02|Shredder operating by the rotary-shears principle
    EP2994234A2|2016-03-16|Comminuting apparatus
    DE214975C|
    同族专利:
    公开号 | 公开日
    FI20115288A|2012-09-26|
    DE212012000029U1|2013-09-10|
    CN203470076U|2014-03-12|
    WO2012131162A1|2012-10-04|
    FI20115288A0|2011-03-25|
    FI10270U1|2013-10-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE332563C|1919-01-16|1921-02-05|Otto Gaiser|Schlagkreuzmuehle with inevitably counter-rotating beater crosses|
    DE555510C|1931-05-08|1932-07-25|Humboldt Deutzmotoren A G|Double hammer mill|
    US3224688A|1962-01-22|1965-12-21|Honolulu Iron Works Company|Shredder|FI10114U1|2013-05-22|2013-06-06|Bmh Technology Oy|crusher|
    CN105078653B|2014-05-13|2019-04-09|吴万里|A kind of imbibition pine closes the preparation method of core|
    JP6476532B1|2018-06-12|2019-03-06|三菱重工環境・化学エンジニアリング株式会社|Twin screw crusher|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI20115288A|FI20115288A|2011-03-25|2011-03-25|The crusher|
    [返回顶部]