• 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 present document shows a separator for separating granular material, such as seed, fertilizer or pesticide, from a material-laden airflow (Fl). The separator comprises a separator zone (Z) having an inlet (11) for a material-laden airflow, a material outlet (13) and an air outlet (12, 12'), and at least two separator parts (15, 15'), which extend only substantially along a material flow (FM) in the separator zone (Z) and between which is formed a separator gap (12, 12'), which is sufficiently narrow to allow air, but not the granular material, to pass through it. At the material outlet (13), the separator gap (12, 12') is at least partially open, viewed in a direction which is substantially parallel with the material flow (FM), so that material which gets stuck in the separator gap (12, 12') is allowed to leave this by means of displacement principally along the material flow (FM).
    公开号:SE1250565A1
    申请号:SE1250565
    申请日:2012-05-31
    公开日:2013-12-01
    发明作者:Gert Gilstring
    申请人:Vaederstad Verken Ab；
    IPC主号:
    专利说明:

    1015202530SummaryA purpose is thus to provide a separator and aseparation process, which eliminates or reduces the problems of knowntechnique.
    The invention is defined by the appended independent claims.
    Non-limiting embodiments appear from the dependent claims,the accompanying drawings and the following description.
    According to a first aspect, a separator is provided for separatinggranular material, such as seeds, fertilizers or pesticides,from a material-mixed air fl destiny. The separator comprises a separator zone with oneinlet for a material-mixed air flow, a material outlet and an air outlet;and at least two separator parts, which extend only substantially along onematerial flow in the separator zone and between which a separator gap is formed,which is narrow enough to allow air but not the granular materialpasses thereby. At the material outlet, the separator gap is at leastpartially open in a direction substantially parallel to the material flow,so that material adhering to the separator gap is allowed to leave it bydisplaced mainly along the material flow. This reducesthe risk of material clogging the separator gap.
    A distance between the separator parts can increase along the material flowand / or along an air outlet flow.
    Because the separator comprises separator parts, which extend onlyalong the material flow and shows increasing gap width, the risk ofmaterial must get stuck in the gap and thereby impair the function of the separator.
    The separator parts may comprise a plurality along the material flow itselfstretching ribs.
    The separator can have a plurality of separator slots, which are distributedradially around at least part of the separator zone.
    The separator may comprise a base part located at the material outlet,having a material outlet opening, the separator parts connecting tothe edge of the material outlet opening at a greater radial distance from the openingcenter than what the separator parts connect to an inlet opening edge.1015202530This further reduces the risk of material cloggingcolumn. In addition, the manufacture of the separator is facilitated by casting orinjection molding.
    The separator parts can clamp up a substantially cylindrical,frustoconical, prism-shaped or frustum-shaped inner surface.
    The separator parts can connect to the edge of the material outlet opening via asubstantially radially extending spacer portion.
    The base part can have an axially continuous recess whichsubstantially coincides with the separator gap and extends radiallyoutside an inner surface of the separator parts, and preferably past an outer surfaceat the separator parts.The inlet may be located at a higher vertical level than the material outlet.
    According to a second aspect, a dosing device is provided for dosingand discharging granular material, such as seeds, fertilizers orpesticides. The dosing device may comprise a singulationdevice designed to produce a flow of individual granules therefromthe granular material, in which flow the granules are fed with a predetermineddistance from each other; and a material inlet for feeding the granularthe material of the singulation device. A separator according to something whatdescribed above is arranged so that its inlet is connected to onesupply duct for feeding a material-mixed air flow and so that itsmaterial outlet is connected to the material inlet.
    The air outlet of the separator may be connected to a duct for pressurization ofsingulation device, so that air flow from the separator is connected to aair inlet of the dosing device.
    The air inlet and the material inlet can be connected tothe dosing device on a high pressure side of a singulation disc.
    According to a third aspect, an agricultural tool is provided for spreadinggranular material, such as seeds, fertilizers or pesticides,comprising a central container for the granular material; at least twodosing devices as described above and at least twofeed channels for feeding the granular material from the centralthe container for the respective dosing device.1015202530According to a fourth aspect, a method is provided for in oneAgricultural utensils separate granular material, such as seeds, fertilizersor pesticides, from a mixed air stream. The procedurecomprises introducing the material-mixed air stream into a separator zone, thatallow the granular material to pass through the separator zone along oneseparator gap which at a material outlet is at least partially open in adirection that is substantially parallel to a material flow, so that material such asstuck in the separator gap was allowed to leave it by displacing the mainobjectively along the separator gap and to feed the granular material asseparated from the mixed air stream to a metering device.
    Brief description of the drawingsFig. 1 is a schematic sectional view of a separator according to an embodiment.
    Fig. 2 is a schematic sectional view along the line A-A in Fig. 1.
    Fig. 3 is a schematic sectional view of a first system in which it is showndescribed separator can be used.
    Figs. 4a-4b are a schematic sectional view of a second system in which it is showndescribed separator can be used.
    Fig. 5 is a schematic perspective view of an agricultural implement 100.
    Fig. 6 is a schematic perspective view of a row unit 105.
    Fig. 7 is a schematic perspective view of a dosing device 109with an integrated separator unit 112.
    Fig. 8 is a sectional view of the dosing device of Fig. 7.
    Figs. 9a-9d are schematic views of a separator unit.
    Description of embodimentsFigs. 1 and 2 schematically show a separator 1, which has an inlet 11,a number of air outlets and a material outlet 13. The inlet 11 can be surrounded by oneinlet flange 14 and the material outlet 13 can be surrounded by an outlet flange 16.
    The air outlets are formed by gaps 12 between separator parts 15.
    The separator parts 15 can together define a geometric body,extending between the inlet and the material outlet. lnloppet 11 andthe material outlet 13 may be substantially concentrically aligned with each other,1015202530so that a separator zone Z extends substantially linearly between the inlet 11 andthe material outlet 13, and so that openings to the inlet 11 and the material outlet13 defines substantially parallel planes.
    The separator zone may in this case be substantially cylindrical orfrustoconical with, for example, circular, oval or elliptical cross-section. Alternativelythe body may have a prismatic shape or a frustum shape, for example withsquare or rectangular cross section. Other cross-sections with, for example, the shape ofpolygon, trapetzoid, etc. are conceivable.
    Alternatively, openings to the inlet 11 and the material outlet 13define non-parallel planes. In such cases, the separation zone Z may extendlinear or curved between the inlet 11 and the material outlet 13. The separator zonecan thus define a body which has the shape of a curved tube with a cross sectionas mentioned above for the separator zone Z.
    In the example shown in Figs. 1-2, the separator zone has the shape of arectangular cylinder with circular cross section.The inlet flange 14 and the material outlet flange 16 can be adapted to itspace in which the separator is to be placed, for example to seal against wallswhich forms the space. In the example shown in Figs. 1-2, material outletthe flange 16 square shape and the material inlet flange has a circular cross section.
    Between the separator parts 15, gaps 12 are formed, through which air (andsmall particles) but not the material to be separated from the air flow, canPass. The separator gap should thus have a maximum width at its inner surfacewhich is less than a minimum diameter of the granular material to bedissever. The separator can be designed as a replaceable part, which is selected from oneseveral similar components with, for example, different gap widths, to fitthe type of granular material to be fed and separated.
    The gap width b can be increasing in the radial direction outwards, ie in the directionsubstantially parallel to the outlet air flow FL. The column 12 may, for example, havea width b which is greater at the outwardly facing surface of the separator part 15 than atthe inwardly facing surface of the separator part 15. This can be achieved, for example, bythat the separator parts have a cross section, seen for example in the plane A-A, perpendicularagainst the material flow FM, which is outwardly tapering, for example triangular,trapezoidal format, semicircular, etc.1015202530At the material outlet 13, the separator gap 12, 12 'can be open indirection substantially parallel to the material flow FM. This means that materialwhich is stuck in the separator gap 12, 12 'can be carried by the material flow FM towardsthe material outlet 13 and, when it reaches the end of the separator gap 12, 12 ', loosensit and passed on with the material flow FM.
    According to one embodiment, the material outlet 13 can be designed with a motorthe opening facing edge 13a. The separator parts 15 can connect to the edge 13a viaspacer portions 18. Tangularly between the spacer portions 18 may be a number axiallythrough recesses 18 be formed in the material outlet flange 16.
    The recesses 18 may coincide with the slots 12 so that they openwhich the gaps form continue radially outwards in the material outlet flange 16.
    Thus, the separator parts 18 can connect to the material outlet 13edge portion 13a at a larger radius than the ribs connect to the material inlet11 edge part 11a.
    Alternatively, the separator gap 12 may continue axially through the materialthe outlet flange, which means that a radial recess with a deep counter-corresponding to the radial wall thickness of the separator parts 18 is provided in the edge 13a.
    The depth of the radial recess can be, for example, 20% -100% ofthe radial wall thickness.
    The gap width b can also be increasing in the axial direction towards the material.the outlet 13, i.e. in a direction substantially parallel to the material flow FM. Thiscan be achieved by the separator parts being tapered downwards and / orin that the whole body which is tensioned by the separating parts is conical.
    Fig. 3 shows a system 20 in which the separator shown herein canexploited. The system comprises an inlet duct 21, in which a material mixtureair flow F1 from, for example, a central container can be fed as well as a container22, in which separated material can be collected, for example for further feedingby means of a dosing device (Figs. 7-8), which may be in the form of asingulation device. Between the inlet channel 21 and the container 22 isseparator 1 arranged. In this embodiment, the separator is arranged so thatfrom this outgoing air flow FL is released to the environment.
    Figures 4a-4b show another system 20 ', in which the separator shown hereinarena 1 can be used. This system 20 'comprises, in addition to the parts in Fig. 3, also a1015202530separator chamber 23, which encloses the separator and one to the separator chamber23 connected exhaust air duct 24, which enables utilization of from the separatoroutgoing air FL and associated air pressure. The exhaust air duct 24 canalso prevent the air FL from the inlet duct 21 from being released to the environment,by returning the air instead for use, for example for feedingmaterial from the dosing device.
    For example, as indicated by the broken lines in Figs. 4a and 4b,the air flow FL from the separator 1 is led to a driving air duct which supplies the dosingwith a driving air driv desolate FD.
    Fig. 5 shows an agricultural implement 100 in the form of a precision seed drill.
    The agricultural implement comprises a frame 106, 107, which carries a centralseed container 102, from which seed is driven by means of a fan 101 viasupply channels 103 to a plurality (here eight) of row units 105.
    The agricultural implement 100 also has a pair of support wheels 104, which can be used assupport for the agricultural implement 100 when sowing, and which can be height-adjustableto also be able to constitute transport support for road transport.
    Fig. 6 shows a row unit 105 of the agricultural implement 100 in Fig. 5, andmore specifically, the leftmost row unit in Fig. 5.
    The row unit 105 may be attached to a transverse portion 107 ofagricultural frame 100 frame. A height adjustment mechanism 114 carries onedosing device 109 and a sowing device 110. The dosing device109 is fed via an air duct 108 with an air-filled FD, which can pressurizethe dosing device and possibly also used for discharging the seedfrom the dosing device. The air flow FD can be achieved with the help offan 101 or by means of a separate fan. Via a supply channel 103the dosing device 109 is fed with an air Fl desert F1 mixed with seed.
    A separator unit 112 is arranged to separate it in the supply channel103 incoming seed from the air flow Fl.
    Air leaving the separator unit 112 is returned to the propellant duct 108and is fed together with the driving air flow FD via a driving air inlet 111 tothe dosing device 109.
    Fig. 7 shows a perspective view of the dosing device 109 and tothis incoming ducts, including the drive air inlet 111, the supply duct1015202530103 and the drive air duct 108. Fig. 7 also shows a housing 113 for that engine(for example an electric motor) which drives a singulation device 116 inthe dosing device 109. Furthermore, the seed outlet 115 is visible, via whichseed is fed from the dosing device 109 to the sowing device 110.
    Fig. 8 shows a sectional view of the dosing device 109. The separator unit112 is shown here in sectional view. The dosing device 109 has a material inlet117, and it can be seen how the material outlet space 1122 in the separator unit112 lower portion is open to a space in the dosing device 109 in whicha singulation disk 116 is rotatable and in which an air overpressure fromthe drive air inlet 111 is present. The separator unit 109the material outlet space 1122 is open to the space with air overpressure so thatthe seed is fed to the singulation disc 116 by gravity.
    Figures 9a-9d show an embodiment of the separator unit 112. The separatorthe unit 112 comprises a housing enclosing an inlet space 112, amaterial outlet space 1122 and an air outlet space 1123. A separator1 'is arranged to form a separator zone Z in the interface betweenthe inlet space, the material outlet space 1122 and the air outlet space.
    The material outlet space 1122 is located at a lower vertical level thanseparator zone Z, so that material separated from incomingmixed air flow is conveyed via the material outlet space 1122 to the dosingthe device 109 by gravity. On essentially the same verticallevel as the separator zone Z, the air outlet space 1123 may be arranged toconnect to the duct 108, via which the propellant air supply is supplied to the metering device.109. Alternatively, the air outlet space, as shown, may form part ofthe duct 108. As a further alternative, the air outlet space 1123connect to the channel 108 via a return channel (not shown). The separator 1 'canbe designed in accordance with the principles described with reference toFigs. 1-2, but are here provided with a plurality of ribs 15 ', which are distributed aroundmaterial fl the direction of destiny and forms along the material flow directionstretching columns 12 ”. As can be seen from Fig. 9d, the separator 1 'can be solocated relative to the propellant duct 108, that the interior of the propellant duct 108limiting surface intersects or touches an inner surface of the separator 1 '. The bodydefined by the ribs 15 'can be slightly frustoconical. The ribs 15 'can have10152025in the material flow direction FM tapered cross section and the slots 12 'canthus having an increasing gap width in the material flow direction FM.
    The separator 1, 1 ', comprising ribs 15, 15' and flanges 14, 14 ', 16, 16',can be formed in one piece, for example by casting a separator 1, 1 'of metal, or injection molding, if the separator 1, 1 'is to be made ofpolymeric material. If the body defined by the ribs 15, 15 'is lightconical or frustoconical, this may facilitate the removal of the separator 1, 1 'from a mold tool. The design of the ribs 15, 15 'is also included in the materialthe flow direction FM tapered cross section can facilitate the separatorremoval from a mold.
    In the material outlet end 16 ', axially through-going recesses 18'be arranged so that the ribs connect to the edge portion of the material outlet 13 '13a 'via respective spacers18'. Thus, the ribs 18 'can connect tothe edge portion 13a 'of the material outlet 13 at a larger radius than the ribsconnects to the edge portion 11a 'of the material inlet 11'.
    Furthermore, the separator may have a portion 19, which defines a part ofthe inlet space 1121. The portion 18 may be formed integrally with the separator1, 1 '.
    It will be appreciated that the separator and dosing device shown herein maybe used for discharging any granular material in agriculture, such asseeds, fertilizers or pesticides.
    权利要求:
    Claims (14)
    [1]
    A separator for separating granular material, such as seed, fertilizer or pesticide, from a mixed air flow (F1), comprising: a separating zone (Z) having an inlet (11) for a mixed air flow, a material outlet (13) and an air outlet (12, 12 '); and at least two separator parts (15, 15 '), which extend only substantially along a material flow (FM) in the separator zone (Z) and between which a separator gap (12, 12') is formed, which is narrow enough to allow air but the granular material does not pass therethrough, characterized in that at the material outlet (13) the separator gap (12, 12 ') is at least partially open seen in a direction which is substantially parallel to the material flow (FM), so that material which gets stuck in the separator gap (12, 12 ') is allowed to leave this by being displaced mainly along the material flow (FM).
    [2]
    A separator according to claim 1, wherein a distance between the separator parts (15, 15 ') increases along the material flow (FM) and / or along an air outlet flow (FL).
    [3]
    A separator according to claim 1 or 2, wherein the separator parts (15, 15 ') comprise a number of ribs (15, 15') extending along the material flow (FM).
    [4]
    A separator according to any one of the preceding claims, wherein the separator has a plurality of separator slots (12, 12 '), which are distributed radially around at least a part of the separator zone (Z).
    [5]
    A separator according to any one of the preceding claims, wherein the separator comprises a base part (16, 16 ') located at the material outlet (13), having a material outlet opening (13), the separator parts (15, 15') connecting to the edge (13a) of the material outlet opening at a larger radial distance from the center of the opening than the separator parts connecting to the edge (11a) of an inlet opening (11).
    [6]
    A separator according to any one of the preceding claims, wherein the separator parts (15, 15 ') span a substantially cylindrical, frustoconical, prism-shaped or frustum-shaped inner surface.
    [7]
    A separator according to claim 4 or 6, wherein the separator parts (15, 15 ') connect to the edge (13a, 13a') of the material outlet opening via a substantially radially extending spacer portion (18, 18 ').
    [8]
    A separator according to any one of claims 5-7, wherein the base part (16, 16 ') has an axially continuous recess (17, 17') which substantially coincides with the separator gap (12, 12 ') and extends radially outside an inner surface of the separator. the separator parts (15, 15 '), and preferably past an outer surface of the separator parts (15, 15').
    [9]
    Separator according to one of the preceding claims, wherein the inlet (11) is located at a higher vertical level than the material outlet (13). A granular material, such as seed, fertilizer or pesticide, Dosing device (109) for dosing and dispensing comprising: a singulating device (116) designed to provide a flow of individual granules from the granular material, in which flow the granules are fed with a predetermined mutual distance; and a material inlet (117) for feeding the granular material to the singulating device, characterized in that a separator according to any one of the preceding claims is arranged so that its inlet is connected to a supply duct (103) for feeding a material-mixed air flow and so that its material outlet (13) is connected to the material inlet (117).
    [10]
    10 15 20 25 30 12
    [11]
    (12, 12 ') is connected to a duct (108) for pressurizing the dosing device according to claim 10, wherein the air outlet of the separator is the singulating device, so that air flow (FL) from the separator is connected to an air inlet (111) of the dosing device (109) .
    [12]
    (111) and the material inlet (117) are connected to the dosing device (109) Dosing device according to claim 10 or 11, wherein the air inlet on a high pressure side of a singulation disc (116).
    [13]
    13. Seeds, fertilizers or pesticides, comprising: Agricultural tools for distributing granular material, such as a central container for the granular material; at least two dosing devices (109) according to any one of claims 10-12; at least two feed channels (103) for feeding the granular material from the central container to the respective dosing device (109).
    [14]
    A method of separating granular material, such as seed, fertilizer or pesticide, from a material-mixed air stream in an agricultural implement, the method comprising: introducing the material-mixed air stream into a separator zone, passing the granular material through the separator zone along a separator gap as in a material outlet is at least partially open in a direction substantially parallel to a material flow, so that material adhering to the separator gap is allowed to leave it by being displaced substantially along the separator gap, and feeding the granular material separated from the material-mixed air stream to a dosing device.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1250565A|SE536523C2|2012-05-31|2012-05-31|Separator, metering device, agricultural implements and process for the separation of granular material|SE1250565A| SE536523C2|2012-05-31|2012-05-31|Separator, metering device, agricultural implements and process for the separation of granular material|
    EP13796586.9A| EP2855036B1|2012-05-31|2013-03-14|Separator, dispensing device, agricultural implement and method of separating granular material|
    US14/404,735| US9901023B2|2012-05-31|2013-03-14|Separator and method of separating granular material in an agricultural implement|
    PCT/SE2013/050255| WO2013180620A1|2012-05-31|2013-03-14|Separator, dispensing device, agricultural implement and method of separating granular material|
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