• 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:

    公开号:SE533905C2
    申请号:SE0800979
    申请日:2008-04-30
    公开日:2011-03-01
    发明作者:Michael Kraft；Julie Ruch
    申请人:Andritz Inc；
    IPC主号:
    专利说明:

    533 505 is at the minimum volumetric capacity of the machine, where the operation of the machine may be desired at all, due to the lower refining intensity available to the smaller streams.
    In addition, conventional refiners require space between an inlet and the surrounding surfaces in order to accelerate the slurry for processing. The required space reduces the effective working range of the machine.
    BRIEF SUMMARY OF THE INVENTION It would be desirable to accelerate the incoming flow closer to the geometry, of the refiner's rotating plates. It would also be desirable to distribute the incoming flow so that it is more evenly distributed around the inner circumference of the grinding zone. In addition, it would be desirable to design the refiner's outlet so that minimal acceleration would be required to discharge the slurry flow.
    One aspect of the invention relates to a fibrous slurry refiner comprising a sheath; a rotor attached to a rotor shaft, which rotor is arranged inside the jacket and is rotatable through the rotor shaft; a plurality of sets of a first mold surface attached to the rotor and a second mold surface disposed opposite the first mold surface and fixed within the jacket; and an inlet housing consisting of an inlet plate, having an axial cylinder and an inlet opening for each set of intersecting first and second mold surfaces, each inlet plate directing the fibrous slurry toward a set of first and second mold surfaces and imparting a rotating flow to the fibrous slurry.
    The inlet plate is preferably substantially circular, where the inlet opening is located tangentially in relation to the center of the inlet plate. The inlet plate may comprise a helical channel extending from the inlet opening to the center of the inlet plate. The center of the inlet plate can define an axial channel which directs the fibrous slurry towards the malytes.
    A fibrous slurry refiner may comprise a first set of first and second mold surfaces on one side of the jacket and a second set of first and second mold surfaces on the opposite side of the jacket, the refiner comprising a pair of inlet plates, one on each side of the jacket. The jacket of such a refiner may comprise a pair of outlet channels, one on each side of the jacket, which outlet channels are located to receive flow from the malyts. Said outlet ducts may be designed so as to minimize disturbance to the jacket caused by discharge of the flow. The pair of outlet ducts can be volumetrically substantially equal. The jacket of such a refiner may comprise a substantially circular housing arranged so as to surround the mold surfaces, the outlet channels being delimited along the outer circumference of the substantially circular housing.
    In an exemplary embodiment, a fibrous slurry refiner comprises a jacket, a rotor attached to a rotor shaft, which rotor is disposed within the jacket and is rotatable through the rotor shaft, and a first plurality of mold surfaces attached to the rotor and a second plurality of mold surfaces disposed opposite the first plurality. paint surfaces and fixed One within. coat. Inlet housing consisting of an inlet plate, an axial cylinder and a helical inlet opening for each plurality of mold surfaces directs the fibrous slurry towards a set of opposite first and second mold surfaces and imparts a rotating flow to the fibrous slurry. preferably the axial cylinder of the inlet is substantially circular, wherein a helical inlet opening relative to the inlet housing may comprise a helical channel which is placed tangentially in the center of the inlet plate. extends from the inlet opening to the center of the inlet plate.
    In this context, the center of the inlet defines an axial channel which directs the fibrous slurry towards the malytes. The refiner may comprise a first set of first and second paint surfaces on one side of the jacket and a second set of first and second paint surfaces on the opposite side of the jacket, the refiner comprising a pair of inlet plates, one on each side of the jacket. nmnteln. In this context, the jacket may comprise a pair of outlet channels, one on each side of the jacket, which outlet channels are placed so that they receive the mold surfaces. flow from the outlet ducts is preferably designed so as to minimize disturbance to the jacket caused by discharge of the flow.
    In this connection, the pair of outlet channels can be substantially equal in volume. In one arrangement, the jacket comprises a substantially circular housing arranged so as to surround the mold surfaces, the outlet channels being delimited along the outer circumference of the substantially circular housing.
    A second aspect of the invention relates to an inlet plate for a fibrous slurry refiner, which inlet plate comprises an inlet opening which imparts a rotating flow to the fibrous slurry. The inlet plate is preferably substantially circular, a ratio in which the inlet opening is located tangentially in to the can from the center of the inlet plate of the inlet plate. The inlet plate comprising a stretcher helical channel to the center can define an axial channel which directs the fibrous as the inlet opening the center of the inlet plate. the slurry against the malytorna.
    In another exemplary embodiment, an inlet plate for a fibrous slurry refiner includes an inlet port that imparts a rotating flow to the fibrous slurry.
    A third aspect of the invention relates to a jacket for a refiner for fibrous slurry, which jacket comprises a pair of outlet channels, one on each side of the jacket, the outlet channels being designed so as to minimize interference on 533 905 the mantle caused by the discharge of a refined slurry.
    Said design may comprise that the pair of outlet channels is substantially equal in volume and / or that the jacket comprises a substantially circular housing, the outlet channels being delimited along the outer circumference of the substantially circular housing.
    In yet another exemplary embodiment, a sheath for a fibrous slurry refiner comprises a pair of outlet channels, one on each side of the sheath, the outlet channels being designed to minimize disturbance to the sheath caused by discharging a refined slurry.
    A fourth aspect of the invention relates to a process for refining a fibrous slurry in a refiner, which process comprises the following steps: the fibrous slurry flows through a pair of inlet plate openings in an inlet housing; the fibrous slurry is accelerated and a rotating flow is imparted to it through the inlet housing; the accelerated and rotating flow of fibrous slurry is directed to a plurality, e.g. a pair of sets of a first mold surface attached to a rotor and a second mold surface disposed opposite the first mold surface and fixed within a sheath; and the fibrous slurry is refined with the malytes. The process may further comprise a step in which the refined slurry is discharged through a pair of outlet channels, which outlet channels are designed so as to minimize disturbance to the refiner. Said design may comprise that the pair of outlet channels is substantially equal in volume and / or that the jacket comprises a substantially circular housing, the outlet channels being delimited along the outer circumference of the substantially circular housing.
    In yet another exemplary embodiment, a method of refining a fibrous slurry in a refiner comprises the steps of: the fibrous slurry flowing through a pair of 10 533 505 inlet plate openings; the fibrous slurry is accelerated and the accelerated and rotating flow of fibrous slurry is directed to a plurality of malytes; rotary flow is imparted to it through the inlet housing; and the fibrous slurry is refined with the malytes.
    It will be appreciated that the present invention is applicable to various types of refiners mechanically treating a slurry of fibrous two materials, the machine having at least refining zones located substantially symmetrically on either side of a vertical plane perpendicular to the axis of the refiner.
    With the refiner construction and function described herein, the double inlet plate model serves to maximize the available edge length and also to limit the inlet flow rates of the fair, while fitting into a reasonable geometry window. Furthermore, the double inlets prevent suspicious dewatering effects through the disc rotor openings varying from side to side. The tangential inlet design facilitates the optimization of the pulp flow to the inner diameter without acceleration of the pulp and potential dewatering. In addition, the design enables a helical inlet geometry in two planes to adapt the space needed to reinforce the plate holder against low deflections.
    The tangential and peripheral outlet design facilitates the force balance on the opposite sides of the jacket, thereby improving the refiner's performance. 10 15 20 25 30 533 505 BRIEF DESCRIPTION OF THE DRAWINGS These and other aspects and advantages of the present invention are described in more detail with reference to the accompanying drawings, of which FIG. 1 is a cross-sectional view of the refiner; FIG. 2 is a perspective view of an inlet plate; FIG. 3 is a perspective view of the refiner's sheath; and FIG. 4 shows a conventional inlet plate.
    DETAILED DESCRIPTION OF THE INVENTION It will be appreciated that the present invention can be applied to various types of refiners mechanically treating a slurry of fibrous material, the machine having at least two refining zones located substantially symmetrically on either side of a vertical plane perpendicular to the refiner's axis.
    A refiner of this type is shown in FIG. A jacket 12 has a substantially flat rotor 14 located therein, which rotor carries a first annular plate defining a first mold surface 16 and a second annular plate defining a second mold surface 18, which surfaces are located so as to be opposite a third and a fourth grinding surface 68, 60. A shaft 22 extends horizontally about a axis of rotation 24 and is driven at one end or at both ends (not shown) in a conventional manner. The refiner of FIG. 1 is in all respects related to this description relation to a plane 20, symmetrical in AND therefore all constructions described herein on one side of the plane have an abutment structure on the other side of the plane. 10 15 20 25 30 35 533 905 An inlet plate 26 is provided. on each side of the plane 20.
    The inlet plates 26 direct the fibrous slurry towards the mold surfaces 16, 18 and the opposite surfaces 68, 60. FIG. 2 is a perspective view of the inlet plate 26. As shown, the inlet plate is substantially circular. In contrast to the conventional inlet plate construction, the inlet plate 26 described herein includes an inlet opening 28 which is located tangentially to the center of the inlet plate 26. In the FIG. 4, on the other hand, the inlet opening 0 is in line with the center C of the plate. The conventional construction shown in the inlet opening 28 described herein is offset from the center along a tangent of the circular shape of the plate. A helical or worm-shaped channel 30 extends from the inlet opening 28 to the center of the inlet plate 26. until the worm-shaped channel 30 serves to accelerate the fibrous slurry and impart a rotating flow. The center of the inlet plate 26 defines an axial channel 32 which directs the accelerated and rotating flow of fibrous slurry toward the malytes.
    In this efficient manner, the inlet plates 26 serve to expand the working range of the machine. With the conventional construction, space is thus needed to accelerate the mass before it reaches the paint surfaces. When the inlet opening 28 is located on the tangent of the inlet plate 26 in connection with the worm-shaped channel 30, the inlet plate 26 imparts a centrifugal velocity and rotating flow to the slurry, thereby improving the performance of the refiner.
    Referring to FIG. 1 and 3, the jacket 12 includes a substantially circular housing 34 surrounding the assembly of the rotor and the paint surfaces. The circular housing 34 comprises a pair of outlet channels 36, one on both sides of the jacket 12.
    The outlet channels 36, 38 are delimited along the outer periphery of the substantially circular housing 34. from the outlet channels 36, 38, flow receives the mold surfaces tangentially and directs the flow along the outer periphery of the substantially circular housing 34 to a pair of discharge openings 40, 42.
    The outlet channels 36, 38 and the discharge openings 40, 42 are preferably volumetrically substantially equal in order to minimize disturbance on the jacket caused by discharge of the flow. In addition, the tangential alignment of the outlet ducts 36, 38 and the discharge openings 40, 42 also minimizes disturbance to the machine caused by the outgoing flow. maintain equal forces If the machine design can be on opposite sides, the performance of the machine can be maximized.
    With the refiner construction described herein and the plate model with double inlet to the available function, it serves to maximize it to simultaneously fit into the edge length and also to limit the velocities of the mass inlet flow, a reasonable geometry window. Furthermore, the double inlets prevent suspicious dewatering effects through the disc rotor openings varying from side to side. The tangential inlet design facilitates the optimization of the pulp flow to the inner diameter without re-acceleration of the pulp and potential dewatering. In addition, the design allows a helical inlet geometry in two planes to adapt space needed to reinforce the plate holder against low deflections.
    The tangential and peripheral outlet design facilitates the force balance on the opposite sides of the jacket, thereby improving the refiner's performance. Although the invention has been described in connection with what may at present be considered as the most practical and preferred embodiments, it is to be understood that the invention is not limited to the described embodiments, but on the contrary is intended to cover various modifications and equivalent embodiments falling within the scope. for the appended claims.
    权利要求:
    Claims (9)
    [1]
    Raf ör nör for fi breast slurry comprising: - a mantle; a rotor attached to a rotor shaft, which rotor is arranged within the casing and is rotatable through the rotor shaft; a first set of first and second malytes arranged on one side of the jacket and a second set of first and second malytes arranged on the opposite side of the jacket, the first malytomas being attached to the rotor and the second malytomas being arranged opposite the first malytes and fixed within manteln; and - an inlet housing, consisting of a pair of inlet plates, one on each side of the jacket, with an axial cylinder and an inlet opening, each inlet plate directing the brittle slurry towards a set of first and second mold surfaces and imparting a rotating flow to it the slurry, and wherein the jacket comprises a pair of outlet channels, one on each side of the jacket, which outlet channels are arranged to receive flow from the malytomas and the pair of outlet channels are substantially equal in volume.
    [2]
    The bristle slurry valve according to claim 1, wherein the inlet plate is substantially circular, and wherein the helical inlet opening is located tangentially with respect to the center of the inlet plate.
    [3]
    The bristle slurry rafter according to claim 1 or 2, wherein the inlet plate comprises a helical channel extending from the inlet opening to the center of the inlet plate.
    [4]
    A bristle slurry conductor according to any one of claims 1 to 3, wherein the center of the inlet plate defines an axial channel which directs the brittle slurry towards the malytomas. 10 15 20 25 30 533 905 11
    [5]
    A breast slurry rafter according to any one of claims 1 to 4, wherein the jacket comprises a substantially circular housing arranged to surround the malytomas, and wherein the outlet channels are defined along the outer circumference of the substantially circular housing.
    [6]
    A casing for a breast slurry refiner, said casing comprising a pair of outlet channels, one on each side of the casing, the outlet ducts being designed to minimize disturbance to the casing caused by discharging a refined slurry, and wherein said design comprises the pair of outlet ducts is substantially equal in volume.
    [7]
    A jacket according to claim 6, wherein said design comprises the jacket comprising a substantially circular housing, the outlet channels being defined along the outer circumference of the substantially circular housing.
    [8]
    A method of refining a brittle slurry in a refiner, the method comprising the steps of: - the brittle slurry pouring through a pair of inlet plate openings in an inlet housing; the brittle slurry is accelerated and a rotating flow is imparted to it through the inlet housing; the accelerated and rotating fl fate of fi breast slurry is directed to fl several sets of a first maly surface attached to a rotor and a second maly surface arranged opposite the first maly surface and fixerted within a sheath; the brittle slurry is infused with the malytomas; and - the refined sluice is formed through a pair of outlet ducts, which outlet ducts are designed so as to minimize interference with the refractor, said design comprising the pair of outlet ducts being substantially equal in volume.
    [9]
    A method according to claim 8, wherein said design comprises that the jacket comprises a substantially circular housing, the outlet channels being delimited along the outer circumference of the substantially circular housing.
    类似技术:
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    JPH09512209A|1997-12-09|centrifuge
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    US4913806A|1990-04-03|Apparatus for screening a suspension of fibrous cellulose pulp
    US6637686B2|2003-10-28|Refiner
    EP0168398A1|1986-01-22|Method and apparatus for manufacturing fiber pulp
    SE426180B|1982-12-13|A screening device
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    US4570862A|1986-02-18|Flexible disk refiner and method
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    SE438714B|1985-04-29|PROCEDURE AND DEVICE FOR PUMPING A HIGH CONCENTRATED FIBER SUSPENSION
    US6033356A|2000-03-07|Centrifugal drum with increased flow resistance
    GB2126653A|1984-03-28|A method of assembling spaced discs of a centrifugal impeller
    DK158201B|1990-04-09|Flat membrane-filter device
    FI57984B|1980-07-31|DUBBELSKIVRAFFINOER FOER PAPPERSMASSA
    RU38471U1|2004-06-20|DISPERSANT
    同族专利:
    公开号 | 公开日
    BRPI0801379A2|2008-12-16|
    SE0800979L|2008-11-04|
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    FI20080329A0|2008-05-02|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1404747A|1974-03-30|1975-09-03|Bolton Emerson|Inlets for a double disc refiner|
    US3897014A|1974-05-13|1975-07-29|Ingersoll Rand Co|Material disintegrating-and-blowing apparatus|
    US4132366A|1977-06-03|1979-01-02|The Bauer Bros. Co.|Infeed tube for disc refiners|
    SE427123C|1979-01-04|1984-05-15|Bahco Ventilation Ab|SET AND DEVICE FOR DEFIBRING TIP OR SIMILAR VEGETABLE MATERIAL|
    US4378092A|1980-10-27|1983-03-29|Cell Develop, Inc.|Method and apparatus for grinding pulp stock in pulp defibrating apparatus of the double rotating disc type|
    US5445328A|1993-08-25|1995-08-29|Andritz Sprout-Bauer, Inc.|Dual zone refiner with separated discharge flow control|
    CN2319116Y|1997-12-16|1999-05-19|华南理工大学|Medium thickness pulp disk grinder|
    US6053440A|1999-03-02|2000-04-25|Beloit Technologies, Inc.|Tangential discharge disk refiner|
    US6502774B1|2000-03-08|2003-01-07|J + L Fiber Services, Inc.|Refiner disk sensor and sensor refiner disk|
    RU2372433C2|2004-12-10|2009-11-10|Андритц Инк.|Disc refiner , two refining elements for disc refiner , combined plate of disc refiner and method of thermal mechanic refining of arboreal refuse wood|
    US20060175447A1|2005-02-09|2006-08-10|Duggan Rodney D|Cup and cone feed distributor|US10448855B2|2014-04-25|2019-10-22|Medtronic, Inc.|Implantable medical devicesensing modifications responsive to detected pacing pulses|
    US10154794B2|2014-04-25|2018-12-18|Medtronic, Inc.|Implantable cardioverter-defibrillatortachyarrhythmia detection modifications responsive to detected pacing|
    US10226197B2|2014-04-25|2019-03-12|Medtronic, Inc.|Pace pulse detector for an implantable medical device|
    CN105080642B|2015-09-08|2018-08-17|杭州青琅玕投资管理有限公司|Wood-fibred grinding device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US91580207P| true| 2007-05-03|2007-05-03|
    US12/054,931|US7726596B2|2007-05-03|2008-03-25|Refiner with spiral inlet and dual tangential discharge outlet|
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