• 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:
    An arrangement for filling a silo (1) has in the interior of the silo (1) via a vertical screw conveyor (2) in a jacket, which is designed as a cage (3). Rods (6) are arranged concentrically to the screw (2) between annular rings (7) as annular flanges and form a portion of a column constructed from the cages (3). The bulk material is thus always promoted only up to the current filling level of the silo (1) and swells there laterally on the cage (3) out. The rods (6) can be formed as round rods or with eccentric cross section (rods 9) for changing the exit surface of the cage (3).
    公开号:AT515053A1
    申请号:T50698/2013
    申请日:2013-10-28
    公开日:2015-05-15
    发明作者:Ernst Ing Kurri
    申请人:Ernst Ing Kurri；
    IPC主号:
    专利说明:

    The invention relates to an arrangement for filling a silo, for example a cuboid silo tower, with a rotary driven auger within a surrounding jacket, for substantially dust-free introduction of chips or the like. In the silo.
    For filling of silos conveyor belts, blowers or Förder¬ screws are used. The filling of a silo takes place from above, whereby the bulk material then gradually fills the silo in free fall. Depending on the bulk material, dust is formed, which can lead to a dust explosion in the silo due to otherwise unavoidable electrostatic charging or sparking for other reasons. For example, the fire brigade has to be careful not to spray jet stream into the silo at a silo edge. There were precedents in which it only came to an explosion and thus a life-threatening situation as well as a complete destruction with fire spread to the environment caused by the deletion attack Staubent¬wicklung. Wood shavings require special caution in this sense.
    Screw conveyors have a rotationally driven screwing surface (" screw ") inside a sheath formed as a tube. The pitch and the dimensions, in particular also the distance or the difference between the screw diameter and Rohr¬innenwanddurchmesser depend on the conveyed, the flow rate per unit time and the delivery height. In terms of retrofittability, accessibility and space supply systems are built outside of a silo and filled a silo from above.
    A conveying tube device with a screw for removing a Silo¬inhaltes is known from DE 68909940 T2. In the area of the silo bottom, a pipe is arranged with inlet openings, in which a conveyor screw runs. The tube itself is also connected to a rotary drive. Next to the inlet openings in the tube there are radially projecting insert edges, which cut off the silo content as a result of the rotation of the tube or feed it into the tube interior of the screw for discharge.
    The invention solves the problem of introducing the bulk material (such as saw dust) largely dust-free in the silo. This is achieved by the fact that the screw conveyor in the interior of the silo is surrounded in the vertical direction up to almost reaching the silo top by a jacket designed as a cage. The filling thus takes place from below. The cage causes the bulk material to swell out of the shell of the screw as soon as the surface of the silo content has been reached. From the cage, the chips pass through the radial component of the screw rotation acting on the chips as soon as the pressure of the surrounding chip material from the outside is lower than that of the radial component from the inside. In any case, this criterion is met near the surface of the existing filling. As a result, highly-promoted chips already mix below the surface of the silane content. On the surface, there is the impression of a bubbling source which, with continued filling with rising silo content, moves upwards with the rising surface until the upper end of the conveying screw has been reached. Since the chips are not always conveyed up to the upper end of the conveyor screw and there are the free fall in the interior of the silo, but the filling over the length of the cage inFüllhöhe and below through the cage through, there is no dust formation.
    It is expedient if the casing of the screw conveyor comprises a plurality of axially parallel rods, for example eight rods with a circular cross section. With a screw diameter of about 350 mm eight round rods of 20 mm diameter can be used as cage bars. The intermediate space is to be selected depending on the conveying material. For reasons of production technology and with regard to production, it is advantageous if the cage is constructed with a circular-cylindrical envelope of sections divided in the axial direction, which at the ends have circular rings as flanges for holding the bars and for interconnecting the sections ¬gen. The flanges can be screwed together so that a column of cages arranged above one another and screwed together is produced as a shell for the screw conveyor.
    In order to enlarge or reduce the passage area, a particularly flexible embodiment of the subject invention provides that the bars have an eccentric cross section and in their
    Rotary position adjustable and position fixable. In this way, the adjustment of the passage areas over the entire length of the conveyor screw is possibly also possible with different spaces (increasing somewhat upwards). A development is characterized gekenn¬zeichnet that the shell of the screw conveyor is formed from axially parallel Lamel¬len whose angular position between a radial and ei¬ner tangential orientation is adjustable and fixed in position. These lamellae can close the envelope, that is, cause approximately a closed tubular shape or, in the other extreme case, open the envelope very far. If the bars of the cage or basket have a V-shaped cross-section and are formed, for example, as an angle iron, the tips of which point to the axis of rotation of the screw, then, as a result, a diode effect results. The outlet resistance is lower in the radial direction than the entry resistance. Thus, the efficiency of upfeed can be improved.
    An embodiment of an arrangement for filling a silo is shown schematically in the drawings.
    Fig. 1 shows the arrangement in elevation, with two detail sections A and B and
    2 shows a cross section to Fig. 1st
    A silo 1 is made in the embodiment as a cuboid structure. The figures symbolically show a reduced version, but an auger 2 with an enclosing cage 3 as an object of the invention in an enlarged scale. The silo 1 has a feed screw 4 and a discharge screw 5, wherein these are indicated and any distributors or feeders are not shown on Silobo¬den. The feed screw 4 rotates in a closed tube, which at most has inspection openings. A bulk material, e.g. Wood chips, so get to the foot of Förder¬ screw 2, which distributes the wood shavings due to the Rotations¬ movement through the openings in the cage 3 for the time being over the bottom surface of the silo 1 in an empty silo. It gradually results in a kind
    Volcanic cone through the highly-managed and ultimately in the Oberflächenbe¬reich the Siloinhaltes from the cage 3 swelling chips.
    The cage 3 consists of several sections one above the other, which are formed by nachachsparallel on a concentric circle to the screw 2 angeordne¬ten bars 6 between circular rings 7. The rods 6 are welded to the circular rings 7. The latter have axial boreholes for a flange-like connection of the individual sections, so that a column is built up in the interior of the silo 1.
    In FIG. 1, surface lines 8 are shown as examples of the cut-up material conveyed from below during filling. The detail A shows a cross-section through a ring of bars 6 of the cage 3 and detail B shows a circular ring 7 on the front side of a cage 3 as a flange for connection to the next section.
    In Fig. 2, a rod 9 is shown with eccentric cross-section. If all rods are rotatable and rotationally fixable in this way, then the gap surface between the rods 9 can be adjusted and adapted to the bulk material, so that a high-conveying wood chips despite the cage 3 surrounding and partly also in these penetrating loose Siloinhaltes with optimal Effects can be. The silo content effectively encases the cage up to the current filling level so that the highly conveyed wood shavings swell out of the cage 3 at the side. A free fall of the bulk material does not take place and therefore the formation of dust including a risk of explosion is excluded.
    In Fig. 2, two bars are shown with V-shaped cross section as angle iron10. If the entire cage or basket is formed in such a way, penetration of the chip material into the conveying area, namely into the cage or basket, is counteracted.
    权利要求:
    Claims (6)
    [1]
    1. Arrangement for filling a silo, for example, a square-shaped silo tower made of concrete, with a rotating driven auger within a surrounding this Man¬tels, for largely dust-free introduction of chips or the like. in the silo, characterized in that the Förder¬ screw (2) in the interior of the silo (1) in the vertical direction bishnähernd reaching to the silo top is surrounded by a cage as (3) ausge¬ formed coat.
    [2]
    2. Arrangement according to claim 1, characterized in that the Man¬tel the screw conveyor (2) comprises a plurality of axially parallel bars (6,9), for example, eight bars (6) with a circular cross-section.
    [3]
    3. Arrangement according to claim 1, characterized in that the cage (3) is constructed with a circular-cylindrical envelope of subdivided in the axial direction sections, each of which ends via circular rings (7) as flanges for holding the rods (6,9 ) and to the mutual connection of the sections ver¬.
    [4]
    4. Arrangement according to claim 2, characterized in that the rods (9) have an eccentric cross-section and are adjustable in their Dreh¬lage and fixed in position.
    [5]
    5. Arrangement according to claim 1, characterized in that the Man¬tel the screw conveyor (2) is formed from axially parallel slats whose angular position between a radial and a tan¬gentialen orientation is adjustable and fixed in position.
    [6]
    6. Arrangement according to claim 1, characterized in that the Man¬tel is formed as a cage or basket of rods with v-shaped cross-section, in particular angle iron (10), the tips of which point to the axis of rotation of the screw.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE60314462T2|2008-02-14|PROCESS FOR FILLING PARTICULAR SOLIDS IN VERTICAL TUBES
    DE1264326B|1968-03-21|Screw conveyor
    AT515053A1|2015-05-15|Arrangement for filling a silo
    EP0049315B1|1984-03-07|Device for conveying and especially metering bulk material
    DE1952763A1|1970-10-22|Method and device for dividing a main flow of particles into partial flows
    DE3503043C2|1993-05-13|
    DE2318560C2|1985-05-02|Silo for storing and removing loose, but difficult-to-flow goods
    DE3119484C2|1983-09-01|Device for separating stones, gravel and sand from root crops in a stream of water
    DE3819861C2|1993-10-07|Discharge device
    EP2832208B1|2017-03-01|Centring device for regulating the vertical flow of loose free-flowing bulk materials
    DE2024215A1|1970-11-26|Foam pump
    EP2263467B1|2017-11-15|Device for humidifying free flowing goods, in particular flour
    DE3526222C2|1988-03-17|
    DE4230247A1|1994-03-17|Filling device for valve bags in particular
    DE2304945A1|1974-10-10|PLANET COOLER
    DE974312C|1960-11-17|Spiral conveyor
    DE2938746C2|1986-09-04|Valve device on a suction air conveyor
    DE1531918C|1972-01-05|Device for flat distribution of silage |
    AT12775U1|2012-11-15|DEVICE FOR FILLING A STOCK EYE WITH GRANULAR MATERIAL
    DE1467502A1|1969-07-03|Device for processing fatty meat material
    DE2264730B2|1976-08-26|DEVICE FOR MAGNETIC TREATMENT OF SEEDS
    EP0394198A1|1990-10-24|Dung and compost removal equipment
    DE1531918B|Device for flat distribution of silage |
    DE102011014390B4|2022-02-17|Material recycling plant with spiral conveyor
    DE102015105645A1|2016-10-20|Device for conveying balls
    同族专利:
    公开号 | 公开日
    EP2865615B1|2017-02-08|
    EP2865615A1|2015-04-29|
    AT515053B1|2017-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0293515A2|1987-05-16|1988-12-07|Hans Georg Huber|Device for removing solids from liquid flowing in a sewer|
    CA2298946A1|2000-02-18|2001-08-18|Louis J. Sich|Auger conveyor with screened output|
    US3143336A|1960-05-09|1964-08-04|Jonas J Byberg|Metering improvement for feed mixers|
    US4443149A|1981-09-28|1984-04-17|Bruce Halland|Axially moveable auger|
    DE102004041528A1|2004-08-27|2006-03-16|M-Kit Gbr|Apparatus and method for adsorbing suspended matter|
    US8734081B2|2009-11-20|2014-05-27|Halliburton Energy Services, Inc.|Methods and systems for material transfer|
    US8313269B2|2010-03-03|2012-11-20|Halliburton Energy Services Inc.|Pneumatic particulate material fill systems and methods|
    US20130149081A1|2011-12-09|2013-06-13|Ronald T. Noyes|Method and apparatus for efficiently filling and unloading flat and hopper bottom grain bins from the bottom using one conveyor|US20210276793A1|2016-11-03|2021-09-09|Westcap Ag Corp.|Mobile and cascadable storage silo|
    法律状态:
    2019-06-15| MM01| Lapse because of not paying annual fees|Effective date: 20181028 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50698/2013A|AT515053B1|2013-10-28|2013-10-28|Arrangement for filling a silo|ATA50698/2013A| AT515053B1|2013-10-28|2013-10-28|Arrangement for filling a silo|
    EP14190610.7A| EP2865615B1|2013-10-28|2014-10-28|Silo with assembly for filling|
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