• 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:
    It is a device for discharging bulk material (1), in particular biomass bulk, from a storage room (2) proposed with a storage space floor, Austragsarme (3) rotating rotary rotor (4) whose Austragsarme (3) the bulk material (1) a conveyor ( 5), wherein the rotor (4) on the head side of a rotatably mounted on the rotor (4) turntable (6) is covered. In order to provide advantageous start-up conditions, it is proposed that the turntable (6) be left behind by a limited angle of rotation as a function of the bulk material load it is braking with respect to the rotor (4).
    公开号:AT511456A4
    申请号:T1591/2011
    申请日:2011-10-28
    公开日:2012-12-15
    发明作者:
    申请人:Hargassner Gmbh；
    IPC主号:
    专利说明:

    23-10-1 ",; : A: Ο 7 AM: Patentan * a I tsionz lei OPa-fciniaufstel le 43 (05 732 70416 U 1
    (38281) II
    The invention relates to a device for discharging bulk material, in particular biomass bulk material, from a storage room with a storage space floor, Austragsarme carrying rotary-driven rotor whose Austragsarme supply the bulk material to a conveyor, wherein the rotor is covered on the head side by a rotatably mounted on the rotor hub.
    Such devices are used to discharge bulk material from storage rooms, in particular from bunkers or silos, for the purpose of supply to a furnace. The bulk material is, in particular, biomass bulk material, such as wood chips, pellets, sawdust or the like. The conveyor to which the rotary-driven discharge arms convey the bulk material is usually a conveyor screw arranged in an upwardly open housing and doses the bulk material during firing supplies. The rotating with the rotor discharge arms have the task to forward the distributed over the storage room floor bulk material of the upwardly open auger. The rotary rotor carrying the discharge arms is typically driven by a bevel gear on the screw conveyor. In order to keep the rotor torque and the required drive power low, the Austragsarme are either flexible, in the manner of leaf springs, or bendable executed. The Austragsarme can move in sufficiently filled storage space to the rotor out or wind with the rotor rotating around the rotor, where they possibly disappear at least partially below the turntable. 28/10/2011 09:09
    No .: R803 P.003 / 013 2 6 - 1 Ο - 1 1 0 £ Ο / AM; Farenta nwa i tskanz 'et HufiSChfer OPA-Emiau + stfil le; + 43 <0) 732 7 7S 4 1 £ # 4, '* 3 φ * # · · * ·· ♦ ··· «♦ * · ·
    The hub is either rotatably connected to the rotor or with the Austragsarmen according to the prior art, so always rotates at the same rotational speed as the rotor or it is mounted on the rotor free-running.
    In this case, the hub is supported by a bearing, in particular a plain bearing, down to the rotor. An advantage of the free-running turntable is that it can stand still braked with a corresponding load of the ballast and no additional drive torque for their rotation or for the movement of the bulk material lying thereon must be applied. However, it is disadvantageous that it depends on the bulk consistency, or; in the case of material that is difficult to pour, an increase in the formation of a bridge in the storage room occurs, which prevents an automatic, complete discharge of bulk material from the storage space and requires additional measures to overcome the bridge formation. The discharge arms can free themselves under a resulting bridge, whereby the intensity of the discharge is reduced or completely interrupted and the screw conveyor is no longer properly supplied with bulk material.
    Such a bridge formation can be counteracted with a turntable held rotatably on the rotor or with respect to the discharge arms, since the turntable moves the bulk material deposited thereon, which prevents bridging tendencies. However, such a construction has the disadvantage that it must overcome especially in vollgefülltem storage space increased starting torque for the movement of the still extended arms and turntable. Starting up after filling a previously approximately empty storage room is particularly critical, as with all variants of the room discharge. The arms are fully extended and loaded with the load of the bulk material. The torque required at start-up to pull the discharge arms under the turntable is the highest occurring in all operating conditions and thus determines the parameters for the design of the transmission. If the turntable has to be moved along with this start-up, this leads to short-term, very high torques, which can lead to the breakage of the gearbox or a drive shaft. The transmission and the entire powertrain must therefore be 28/10/2011 09:10
    No .: R803 P.004 / 013 2 £ · - 1 C '- 1 1; OS: O AT THE ; Father, rsnwa I tskani I e. Nice he OPA-E i η l on ste 'I e; + 4. 3 (Ol 7 32 p 7 9 4 16 # E · 1 Ο · · · φ * »* v» · · * «* · * i. · Dimensioning, which has a negative effect on acquisition and operating costs the room discharge effect.
    Object of the present invention is thus to provide a device of the type described above, which keeps the starting torque of the rotor after filling a previously almost empty storage space as low as possible while still reliably counteracts bridging in the bulk material.
    The invention achieves this object by the fact that the turntable lags behind the rotor by a limited angle of rotation as a function of the bulk material load it brakes.
    The invention thus combines the advantages of a freely rotating and a turntable fixedly connected to Austragsarmen and co-rotating. With the invention, the starting torque can be reduced by the fact that the turntable does not rotate with the rotor at least during startup, but only co-rotates at a later point in time, moreover the discharge arms have retracted at least by a desired amount and thus the starting torque has been correspondingly reduced , If the turntable remains opposite the rotor, provision is made, in particular, for a restoring force to build up, which subsequently displaces the turntable, which is not or only slightly loaded, back into the idling position. The restoring force may be a spring accumulator or generated by gravity.
    For this purpose, it is recommended that the rotor comprises a turnstile whose turnstile arms are associated with the discharge arms, at least one turnstile arm being associated with a driver for at least one stop protruding from the turntable underside. With these features results in a particularly simple, robust construction. For this purpose, for example, at the turnstile a stop and the turnstile arm associated with a driver, which allows the desired clearance when starting. 28/10/2011 09:10
    No.: R8Q3 P.005 / 013 26 - 1 Ο- ι 1; 06: Ο 7 AM; Pater.tanwa 'ΐ s k β η ζ le i Pretty OPA entry point; <43 (O) *: Γ. ,· 1
    A spring return rotates the turntable after emptying the storage room, for example, back to a second stop back to a defined starting position. The function of the second stop can in principle also meet the driver. Naturally, the choice of the free rotation angle is incumbent on the person skilled in the art who, depending on the construction, for example, makes about 180 °, 360 ° or the like. can amount.
    The possibly extended by a traction means spring can attack at one end to a Drehkreuzarm and the other end of the turntable. Thus, there is the possibility that the traction means or the spring when pivoting the turntable with respect to the rotor wrap around the rotor and this can withdraw to a relief of the turntable back to the starting position.
    If the storage room was at least almost emptied after a heating period, the Austragsarme may be limited by the wall of the storage room, fully extended. The currently free-standing and unloaded turntable is defined by a stop at the turnstile and by a spring return in an idle position relative to the turnstile. If the storage room is filled at a later time and the discharge is activated, the turnstile begins to move with the arms, with the arms retracting. Due to the load on the turntable with bulk material and by the resistance of preferably provided on the turntable top and transverse to the disc direction Räumleisten the turntable is retained by the ballast. The turnstile or the rotor can move freely under the turntable and thus there is no need for additional drive torque for moving the turntable. After the rotor has been rotated to a required angle for drawing in the Austragsarme rotation, the hub is taken from the rotor. Only now, the required for the movement of the turntable under the load of the bulk material, additional drive torque is required. At this time, the Räumleisten support an antagonism of bridging. As a result of the progressive emptying of the storage space, the turntable can then rotate freely again and is rotated back to the idling position by the tension spring. 28/10/2011 09:11
    No .: R803 P.006 / 013 28-10- '1; 08: Ö ^ AM! Pateritanwa 1 τ s k a r * &gt; 2 I θ ί Handsome · OPA - The loudest »94 1 6 CO» 3i «·» «* * * ♦ 5
    In the drawing, the invention is illustrated schematically with reference to an embodiment. Show it
    1 shows a partially sectioned cross section through a device according to the invention,
    2 shows a section of a device from FIG. 1 in a partially cutaway top view with a turntable rotated in the starting position, and FIG. 3 shows the device from FIG. 1 with a threshing disk twisted in the stop position.
    A device according to the invention for discharging bulk material 1, in particular woodchips or pellets, comprises a storage space 2 with a rotary space 4 bearing discharge arms 3 rotating rotor 4, the Austragsarme 3 the bulk material 1 a conveyor 5, a screw conveyor with upwardly open screw feeder, perform. The rotor 4 is covered on the head side by a turntable 6 rotatably mounted on the rotor 4. According to the invention, the turntable 6 remains in response to the restrained Schüttgutauflast under bias of a spring 7 relative to the rotor 4 by a braking force-dependent limited rotation angle.
    For this purpose, the rotor 4 according to the embodiment comprises a turnstile 8, at the turnstile arms Austragsarme 3 are fixed, wherein at least one Drehkreuzarm a driver 9 is assigned for at least one projecting from the turntable bottom stop 10. The spring 7 is extended by a traction means and engages at one end on a Drehkreuzarm and the other end on the turntable 6, in particular on a schematically illustrated, projecting from the turntable underside pin 11 at. The turntable surface are transverse to the disc rotation direction aligned Räumleisten 12 assigned.
    In an empty storage room 1, the discharge arms 3 are first fully extended (FIG. 2). The freestanding and unloaded turntable is through the stop 10 and the driver 9 by the spring return in a defined idle position. If the storage room is filled and then the Austro- 28/10/2011 09:12
    No .: R803 P.007 / 013 2 5- 1 Ο - Ί ': 08: Ο &quot; 7 AM; P "Tentanv.s t Sk ^ nz I e i Hobscher CPA-6 ί π l au-f stel le - +43 0) 7 h 7 / ^ 416> =. - · 6
    When activated, the turnstile starts to turn with its arms. As a result of the rotational movement, the discharge arms retained by the bulk material are drawn in, the rotary disk being retained by the braking force of the resting bulk material under tension of the spring 7 until the stop 10 bears against a second carrier 9 (FIG. 3). In the illustrated embodiment, a free rotation of the hub 6 is possible by about 180 °, so the hub can thus move freely by about half a turn before the turntable is taken by driver and stop. The indicated in Fig. 1 bridging 13 in the bulk material 1 can be safely avoided by these measures. Another significant advantage of the invention is that the maximum torque and the maximum required drive power can be reduced in a simple manner. 28/10/2011 09:12
    No .: R803 P.008 / 013
    权利要求:
    Claims (4)
    [1]
    8 - 10-1ΐ; 0: 07 AM; Patentarwa lskanzi i i Huoscher OPA-E ι o I__ * J + Aj (o). · '- &lt; -z • «Patent Attorneys Dipl.-Ing. Helmut Hübscher Dipl.-Ing. 1. A device for discharging bulk material (1), in particular biomass bulk material, from a storage space (2) with a storage space-side, discharge-poor (3) carrying rotary-driven rotor (4 ), whose discharge arms (3) supply the bulk material (1) to a conveyor (5), wherein the rotor (4) is covered on the head side by a turntable (6) rotatably mounted on the rotor (4), characterized in that the turntable (6 ) as a function of the braking bulk charge against the rotor (4) by a limited angle of rotation.
    [2]
    2. Apparatus according to claim 1, characterized in that the rotor (4) comprises a turnstile (8), the turnstile arms are associated with the Austragsarme (3), wherein at least one Drehkreuzarm a driver (9) for at least one of the turntable underside projecting stop (10) is assigned.
    [3]
    3. A device according to claim 2, characterized in that optionally extended by a traction means spring (7) at one end on a Drehkreuzarm and the other end on the turntable (6) attacks.
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the turntable top side is associated with at least one transverse to the disc rotation direction scraper (12). Linz, on October 28, 2011 HARGASSNER Ges mbH durci

    28/10/2011 09:13 No .: R803 P.009 / 013
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1801505A1|1968-10-05|1970-05-21|Schwaebische Huettenwerke Gmbh|Milling rotor for a silo discharge device|
    DE3333115A1|1983-09-14|1985-03-28|PHB Weserhütte AG, 5000 Köln|Bunker which can be cleared out using a clearing unit|
    WO2004054908A1|2002-12-13|2004-07-01|Saxlund International Ab|Output device for container|
    WO2010093842A2|2009-02-13|2010-08-19|The Gsi Group, Llc|Grain bin for temporary storage of grain|
    US3233755A|1964-06-09|1966-02-08|Butler Manufacturing Co|Bottom unloader for storage structures|
    FR2034857B1|1969-03-12|1975-02-21|Schwaebische Huettenwerke Gmbh|
    AT124373T|1991-08-22|1995-07-15|Schwaebische Huettenwerke Gmbh|SILO DISCHARGE DEVICE.|DE102014213340B4|2014-07-09|2017-10-19|Heizomat-Gerätebau + Energiesysteme GmbH|Discharge device for small pieces of bulk material|
    EP3560865A1|2018-04-26|2019-10-30|Fröling Heizkessel- Und Behälterbau Gesellschaft M.B.H|Discharge device for small sized bulk material and combustion device with such a discharge device|
    WO2022048769A1|2020-09-04|2022-03-10|Sl-Technik Gmbh|3-point torque support|
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