EP2444569A1 - Method and device for conveying bulk material - Google Patents
Method and device for conveying bulk material Download PDFInfo
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- EP2444569A1 EP2444569A1 EP10188710A EP10188710A EP2444569A1 EP 2444569 A1 EP2444569 A1 EP 2444569A1 EP 10188710 A EP10188710 A EP 10188710A EP 10188710 A EP10188710 A EP 10188710A EP 2444569 A1 EP2444569 A1 EP 2444569A1
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- Prior art keywords
- stirring
- unit
- stirring unit
- bulk material
- container
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
- E04F21/085—Mechanical implements for filling building cavity walls with insulating materials
Definitions
- the invention relates to a device and a method for conveying bulk material.
- the inventive device are particularly suitable for blowing Einblasdämpfstoff, especially cellulose, for example, in cavities of walls, ceilings or floors of buildings.
- Another field of application relates to the so-called "open-inflation", in which, for example, roof floors are coated with damping material for energetic renovation by blowing.
- the final product ie, for example, created by blowing insulation products, high demands for homogeneity and thus thermal insulation properties suffice.
- the device should continue to be energetically efficient operable.
- the device has a container for receiving bulk material and a preferably vertical agitator in the operating position for dissolving or loosening the bulk material.
- a transition is arranged, via which the bulk material can be transferred and conveyed into a preferably pneumatic conveying line.
- a nozzle or a discharge nozzle can be arranged at the user end of the delivery line.
- the agitator has at least two coaxial stirring units, which are in operative connection with each other so that they are movable relative to each other. This can achieve significant benefits.
- One advantage, for example, is that the stirring units can be operated at a comparatively low rotational or angular speed.
- the first stirring unit can be fixed and the second stirring unit can be rotatably arranged in the container.
- the device may also have two rotatable stirring units.
- the first stirring unit and the second stirring unit may be connected to one another in terms of gear in such a way that the stirring units are rotatable about different axes of rotation and / or angular speeds about a common axis of rotation.
- the transmission may, for example, a reduction gear be, whereby the stirring units can rotate at different speeds.
- the transmission may also comprise coupling means via which the stirring units can be coupled automatically (eg with a centrifugal clutch) or by means of control means or by control to a drive unit for driving the stirring units.
- the device has a gearbox with the aid of which the first stirring unit and the second stirring unit are rotatable in opposite directions. With such an arrangement, particularly good dissolution results can be achieved even at comparatively low speeds.
- the first stirring unit may have or be connected to a drive shaft
- the second stirring unit may have or be connected to a hollow shaft, wherein the drive shaft is received in the hollow shaft.
- the device has a planetary gear, via which the first stirring unit and the second stirring unit are connected to each other in terms of gear.
- Planetary gears have the advantage that they allow different modes of operation and in particular also opposing rotational movements of the stirring units. Another advantage is that by using a planetary gear compact devices are created with comparatively small external dimensions.
- the planetary gear may have a ring gear which is rigidly connected to the first stirring unit or connectable by means of coupling means.
- the stirring arms of the first stirring unit can be rigidly connected to the ring gear, in particular by welding or in another way.
- the first stirring unit and / or the second stirring unit may each comprise at least one, preferably at least two, and more preferably at least three, and typically six, stirring arms extending from the inside to the outside and in particular in the radial direction.
- the stirring arms are preferably each on horizontal planes.
- the stirring arms can also be inclined.
- the first stirring unit and the second stirring unit may each comprise at least one stirring arm provided with projecting stirring portions or extensions, wherein the additional stirring portions of the two stirring units are preferably aligned with each other or wherein the additional stirring portions of the two stirring units also extend in the same direction could be.
- a plurality of stirring portions may be arranged to form a comb-like configuration.
- the comb-like configuration is characterized by a plurality of successively arranged and aligned in the same direction Studhrabchanginge or extensions, for example in the form of prongs from.
- the additional stirring portions of the stirring units can be aligned with one another and arranged (of course without touching each other) intermeshing and meshing with each other.
- a stirring blade section projecting away from the stirring arm can be attached to at least one of the stirring units.
- the stirring units can be designed, for example, as stirring stirrers.
- the apparatus may include means for scraping off soil remaining material.
- Such scraping means may be scraping segments attached or formed on at least one lower stirring arm.
- the scraper segments can be formed by obliquely directed towards the ground profile parts.
- the scraping means can also be formed by profile sections which connect in radial section to a stirring section.
- Such a profile section may be an end section having a free end.
- the stirring blade section can connect an inwardly directed end portion.
- the end portion may be arranged in the region of the inside of a bottom of the container for scrapping or detachment of bulk material at the bottom.
- the mixing arm with the associated stirring blade section and the end section produce a U-shaped configuration in radial section.
- one of the stirring units in the radial section has an approximately U-shaped or V-shaped configuration and is designed such that it surrounds the other stirring unit.
- At least one agitating tine can be arranged on the respective stirring arms.
- a plurality of approximately axially parallel stirring tines are arranged on the respective stirring arms.
- These stirring prongs can be formed by the previously mentioned additional stirring sections or extensions.
- the stirring prongs may have screw portions which are screwed or screwed into complementary screw holes in the stirring arm. In this way, the field of application can be extended. Depending on requirements, stirring tines can be removed, inserted or replaced by tines of other dimensions or shapes.
- the device may comprise a drive unit for driving the agitator.
- the drive unit may be, for example, a commercially available electric motor.
- the device may also be equipped with a combustion and in particular with a diesel engine as a drive unit.
- the device may have a metering unit in the form of a rotary valve for the metered feeding of bulk material into a delivery line and a blower unit for generating a compressed air flow for the pneumatic conveying of the bulk material of the delivery line.
- the delivery line may preferably be a flexible tube, allowing the user to easily place the free end of the tube and fill or top up the material at the desired location.
- the blower unit may be, for example, a blower in axial or radial design. Also conceivable are positive displacement blowers. Other types of fans, blowers or compressors are also possible.
- the apparatus may comprise a drive unit with which the stirring units and the fan unit and optionally (i.e., if present) a metering unit are jointly operable or drivable.
- Another aspect of the invention relates to a method for conveying bulk material and in particular for blowing Einblasdämmstoff, preferably using the device described above.
- the method comprises a working step in which the bulk material received in a container is dissolved or loosened with a preferably vertical agitator, comprising a first and at least one second stirring unit coaxially aligned with the first stirring unit. During the dissolution process, the second stirring unit performs relative rotational movement with respect to the first stirring unit.
- the method then further comprises the step that the bulk material thus dissolved is transferred from the container into a preferred pneumatic conveying line. During transfer, the bulk material can pass through a rotary valve or another metering device.
- FIG. 1 shows a generally designated 1 device with which Einblasdämmstoff, such as cellulosic fiber materials can be injected to a desired location.
- the apparatus 1 comprises a container 2 with a container wall 18, into which bulk materials loosely stored in bags, such as insulating fibers or fibrous flakes or insulating material present in bales, are introduced.
- a stirrer 4 for dissolving or loosening the introduced material.
- the material thus dissolved is then transferred to a pneumatic conveying line 3 and conveyed to the outlet of the line 3.
- Denoted by 10 is a blower unit for generating a compressed air flow for the pneumatic conveying in the delivery line.
- the indicated with a dotted line material flow at the end of the feed line 3 is blown into cavities or open shots for thermal insulation of newly built buildings or building renovation.
- materials for insulation such as mineral fibers, sheep's wool, wood fiber insulation, glass wool, rock wool, wood chips, etc.
- the agitator 4 is vertically aligned in the operating position.
- the agitator 4 comprises a lower stirring unit 5 and an upper stirring unit 6.
- the two stirring units 5 and 6 are aligned coaxially with one another and connected to one another in a gearbox manner.
- the agitator is connected via a drive shaft 11 with a Drive unit 8, for example, an electric motor, operated.
- a gear 7 is designed such that the two stirring units 5 and 6 are movable relative to each other.
- the transmission 7 (for example, a planetary gear with a ring gear 13, they also subsequent Fig. 2 ) allows, for example, opposing rotational movements of the two Rhakismeen 5 and 6.
- the Rhackechen can rotate at different angular velocities in the same or opposite directions.
- the respective stirring units have radially outwardly directed stirring arms 16, 17.
- the respective stirring arms 16, 17 are arranged horizontally and lie on approximately plane-parallel to the container bottom 19 extending planes. At the outer ends of the arms 16, 17 close approximately at an angle projecting Rntonblattabête 22, 23, which are directed towards each other.
- Rntonblattabitese 22, 23 which are directed towards each other.
- a stirring unit can be stationary relative to the bottom of the device.
- FIG. 2 shows a possible embodiment of a stirrer 4 with a schematic diagram of the transmission 7.
- the transmission 7 is designed as a planetary gear and has a sun gear 14, three sitting on a planet carrier 20 planet gears 15 and a ring gear 13.
- Denoted at 11 is a drive shaft directly or indirectly connected to the motor, to which the stirring arms 17 of the upper stirring unit 6 are attached.
- the stirring arms 16 of the lower stirring unit 5 are fixedly connected to the ring gear 13.
- the transmission module 7 has controllable couplings 27 and 28, whereby various modes are possible.
- the planet carrier 20 as a driver is selectively connectable via the shiftable clutch 28 with the ring gear 13. With the aid of a switchable coupling 29, the sun gear 14 can be rotatably connected to the drive shaft.
- FIG. 3 As can be seen, the two stirring units 5 and 6 have aligned, vertically extending additional stirring sections or extensions (see also FIGS Fig. 4 ).
- the planetary gear is located directly below the container bottom 19.
- the planetary gear is in FIG. 3 not shown in detail and therefore only indicated by 7.
- the device 1 In the bottom 19 is located as a transition to the delivery line, an outlet 44, via which the material enters the delivery line.
- the device 1 To transfer the material into the delivery line, the device 1 has a rotary valve 9, which is connected upstream of the pneumatic delivery line.
- the transition 44 could basically - be arranged in the bottom area of the side wall 18 of the container - instead of on the ground.
- a drive unit 8 (in Fig. 3 in the background), which serves to drive the agitator 4, at the same time the rotary valve 9 can be operated.
- the respective machine components 4 and 9 are connected via a transmission 21 (in Fig. 3 also in the background) geared to the unit 8 connected.
- the drive unit 8 and the gear 21 are formed as a motor / gear unit.
- the gear 21 may have a reduction gear or be configured as such, whereby the cell wheel of the dosing unit 9 and the drive shaft associated with the agitator 4 are operated at different speeds.
- a blower 10 serves to generate a conveying air flow.
- FIG. 4 is the planetary gear 7, via which the two Rhakismeen 5 and 6 are connected to the drive unit. shown greatly simplified.
- the first stirring unit 5 is connected to a drive shaft 11 and the second stirring unit 6 has a hollow shaft 12.
- the drive shaft 11 is received in the hollow shaft 12.
- the ring gear 13 is connected to transmit power to the hollow shaft 13 of the planetary gear 7.
- the sun gear is rotatably mounted on the drive shaft 11.
- the rotational movements are shown with arrows for angular velocities ⁇ 1 and ⁇ 2 .
- the respective stirring units 5 and 6 of the agitator 4 are similar to the embodiment according to FIG. 3 designed like a comb.
- the respective stirring portions 24 and 25 of the stirring units 5 and 6 are aligned with each other and interlockingly arranged without disturbing each other.
- the upper stirring unit additionally has axially parallel, upwardly protruding tear-off portions 40 and 40 'of different lengths and a scraper 26 directed to the container side wall 18.
- the tear-off portions 40, 40' are used for tearing off material a bottom of a bale of insulating material. By the tear-off sections are not formed the same length, the bale is applied irregularly. This avoids turning the bale in the container without tearing off any material.
- the agitator 4 and the rotary valve can be connected in terms of gear on the drive unit 8.
- the motor shaft of the drive unit 8 is aligned coaxially with the rotor of the rotary valve 9.
- a bevel gear 31 and a planetary gear 7 is also the agitator 4 driven by the drive unit 8.
- the drive unit is provided with the drive unit as a unit formed gear 21.
- FIG. 5 and the perspective external view of the injection device 1 according to FIG. 6 an outlet 32 recognizable, to which the delivery line for conveying the insulation materials can be connected.
- the support line is in FIG. 5 indicated by dashed lines.
- the mechanical components for operating the agitator and for conveying the bulk material are located in the self-standing stable designated 41, which adjoins the container bottom 19 and is connected to this example by means of screws. All components are attached to a common plate, which forms a force node.
- the base 19 has an enclosure, whereby about engine and fan noise and noise of the rotary valve 9 can be reduced. By a sound insulation, the per se occurring noise can be insulated so that it no longer bothers.
- Particularly advantageous housing is equipped with sound-absorbing means, which allows use of the device in residential areas. For the sound insulation, the side walls of the substructure 41 can be clad on the inside with sound insulation mats.
- the containers of the devices need not necessarily be cylindrical.
- the container is present octagonal in plan view. Of course, other container shapes are conceivable.
- the containers need not be evenly configured in the axial direction.
- the container could have a funnel-shaped container section on the bottom side.
- the movable machine components eg planetary gear 7, drive unit 8, rotary valve 9, Blower housed in the base 41 and dust and / or soundproof included.
- the substructure has a support structure with which the device can be stably placed on the ground.
- a latticed intake filter is shown.
- FIG. 11 shows a device with about the same base 41 as in FIG. 6
- This container 2 has an approximately quadrangular shape in plan view and consists essentially of plastic.
- a commercial container for compostable waste was used as container 2.
- Such containers are inexpensive and available in different sizes.
- Such containers are generally known and used in Germany under the name "green waste bin” (GMT).
- GTT green waste bin
- a GMT only has to be adapted in the area of the floor by means of cutting and drilling operations for the attachment or for the connection to the substructure or if the components are used for material and air inlets and outlets.
- This device is also very easy to transport and is particularly well suited as a small appliance for craftsmen or for home improvement.
- the device can be provided with carrying handles or in the case of larger and heavier devices with wheels, as they are already present in a GMT.
- FIGS. 7 and 8a / b / c show a further alternative variant for an agitator 4 of the device according to the invention.
- the agitator 4 in turn has two stirring units 5 and 6.
- the stirring units have, in contrast to the other embodiments stirring blade sections 22 and 23 extending in the same direction.
- FIG. 8a shows that the respective stirring arms do not necessarily have the same length and can have different Rchanarmin.
- the agitator further comprises a transverse bridge member 35, which connects two mutually opposite Rrockblattabbalde the upper Rntontician 6 together.
- the planetary gear has only one planetary gear 15 which is rotatably mounted on a fixed axis 33 on the planet carrier 20.
- the planet carrier 20 is designed frame-shaped in plan view. On the frame adjoins an inwardly extending, in plan view about triangular holding section on the inner tip of the planet gear 15 is mounted (see esp. Fig. 8a ).
- the two Rhackismeen 5 and 6 are detachably connected to the Antiebsstoffn.
- the free end of the drive shaft 11 is designed flattened and forms a form-fitting portion 43 for attachment of the upper stirring unit 6 by means of positive engagement.
- a corresponding hole is provided centrally in the stirring unit 6.
- a plurality of connecting parts 36 are arranged, which are connected in a force-transmitting manner with the stirring arms 16 of the lower stirring unit for the rotational movement.
- the connecting parts 36 have recesses complementary to the stirring arms, into which the respective stirring arms can be accommodated approximately accurately.
- rigidly connect for example, a welded connection between the stirring unit and the ring gear.
- the bridge member 35 is arranged obliquely in the agitator and inclined at an angle of about 15 ° to the horizontal.
- the bridge member serves to tear off material from the underside of a bale.
- the bridge member 35 is detachably connected to the upper stirring unit 6 and can optionally be easily assembled or disassembled.
- the respective stirring arms 16 and 17 of the two stirring units are close to each other.
- One of the stirring arms 16 has a stripping segment 34 directed obliquely against the bottom 19, with which material remaining on the inner bottom wall can be returned to the loosening process.
- This additional element 34 can be fastened by means of screw connections to the corresponding stirring unit.
- FIG. 9 Another variant for a stirrer 4 is shown.
- the agitator 4 has a lower stirring unit 5 with six stirring arms 16.
- the upper stirring unit 6 has only four stirring arms 17.
- the stirring arms are provided with rectangular and round holes, in which, as required, extending in the axial direction Hinhrabchanginge with rectangular or even round cross section can be inserted.
- the additional stirring sections or prongs are formed by flat profiles 22 or 25.
- FIG. 9 goes on to say that the respective stirring arms can be equipped differently with tines.
- the stirring arm denoted by 16 ' merely has an agitating tine 22' arranged approximately centrally.
- the adjoining mixing arm 16 has an external tine 22 and a tine lying in the region of the drive shaft 11.
- the opposite rotational movement of the two stirring units 5 and 6 are indicated by the arrows ⁇ 1 and ⁇ 2 .
- the agitator 4 according FIG. 10 has Rlickticianen 5 and 6, which are equipped with a variety of attachments.
- the upper stirring unit 6 has two mutually opposite stirring arms 17 with axially aligned stirring blade sections 23, at the ends of which inwardly directed end sections 34 join. These end portions 34 form bottom-side scraper segments, which are evidently formed by inclined flat profiles.
- material remaining on the bottom of the container (not shown) can be easily removed or scraped off or simply scraped off.
- the agitator arms 17 with the associated Rntonblattabêten 23 and end portions 34 result in a radial section about an U-shaped configuration surrounding the other stirring unit 5, whereby the Rntoniseren are in an opposite rotational movement past each other.
- the stirring tines 24 and 25 of the two stirring units have transverse bars 38 and 39 running transversely to the tines and extending horizontally.
- the cross bars can also comb each other. Such cross bars could also in corresponding openings on the Rntonblattabêten or tines 22, 23, 24, 25 according to FIG. 3 or 7 be arranged.
- Abreisssabête 40 are screwed.
- the embodiment according to FIG. 12 is characterized inter alia by the fact that only one stirring unit 6 is rotatably arranged in the container 2; the other stirring unit 5, however, is arranged fixed in the container 2.
- At the outer end of the upper horizontal stirring arms 17 close from this approximately perpendicular projecting Rntonblattabête 23 at.
- inwardly directed end portions 34 adjoin the stirring blade sections 23, whereby mixing arm 17, stirring blade section 23 and end section 34 define a U-shape in radial section.
- the respective ones Sections 17, 23 and 34 are integrally connected to each other and can by bending processes in the in FIG. 12 shown form brought.
- the tines 24 and 25 of the respective stirring units are designed as screws, each having a screw portion and a screw head.
- the upper stirring unit 6 has prongs which extend both downwards and upwards in the vertical or axial direction.
- the upper stirring section of this tine is designated 40.
- the drive unit 8 is aligned coaxially with the stirring or rotation axis R.
- the drive unit 8 also drives the blower 10.
- the blower is designed as a blow-through fan, which sucks in and conveys material and air.
- the fan unit is designed as a radial fan and has a rotatable about the axis R, filled with blades impeller.
- the device 1 further comprises a reduction gear 21. This gear 21 ensures that the stirring unit 6 rotates at a considerably lower speed than the impeller 42.
- a blower can also be combined with a device of the type previously described equipped with a planetary gear.
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Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Fördern von Schüttgut. Die erfindungsgemässe Vorrichtung eignet sind insbesondere zum Einblasen von Einblasdämpfstoff, insbesondere von Zellulose, beispielsweise in Hohlräume von Wänden, Decken oder Böden von Gebäuden. Ein weiteres Anwendungsgebiet betrifft das sogenannte "Offen-Aufblasen", bei dem zur energetischen Sanierung beispielsweise Dachgeschosse mit Dämpfstoff durch Einblasen beschichtet werden.The invention relates to a device and a method for conveying bulk material. The inventive device are particularly suitable for blowing Einblasdämpfstoff, especially cellulose, for example, in cavities of walls, ceilings or floors of buildings. Another field of application relates to the so-called "open-inflation", in which, for example, roof floors are coated with damping material for energetic renovation by blowing.
Gattungsmässig vergleichbare Vorrichtungen sind beispielsweise aus der
Es ist deshalb eine Aufgabe der vorliegenden Erfindung, die Nachteile des Bekannten zu vermeiden und insbesondere eine Vorrichtung und ein Verfahren zu schaffen, bei dem das Schüttgut auf vorteilhafte Art und Weise mit dem Rührwerk aufgelöst oder aufgelockert wird. Insbesondere soll das Endprodukt, d.h. beispielsweise durch Einblasen geschaffene Dämmerzeugnisse, hohen Anforderungen hinsichtlich Homogenität und damit Wärmedämmungseigenschaften genügen. Die Vorrichtung soll weiter energetisch effizient betreibbar sein.It is therefore an object of the present invention to avoid the disadvantages of the known and in particular to provide a device and a method in which the bulk material is dissolved or loosened in an advantageous manner with the agitator. In particular, the final product, ie, for example, created by blowing insulation products, high demands for homogeneity and thus thermal insulation properties suffice. The device should continue to be energetically efficient operable.
Diese Aufgaben werden erfindungsgemäss mit einer Vorrichtung und einem Verfahren gelöst, die die Merkmale der unabhängigen Ansprüche aufweisen.These objects are achieved according to the invention with an apparatus and a method having the features of the independent claims.
Die Vorrichtung weist einen Behälter zur Aufnahme von Schüttgut und ein in Betriebslage vorzugsweise vertikales Rührwerk zum Auflösen oder Auflockern des Schüttguts auf. Vorzugsweise im Bereich des Bodens des Behälters ist ein Übergang angeordnet, über den das Schüttgut in eine bevorzugt pneumatische Förderleitung überführt und gefördert werden kann. Je nach Anwendungsgebiet kann am anwenderseitigen Ende der Förderleitung eine Düse oder ein Ausblasstutzen angeordnet sein. Das Rührwerk weist wenigstens zwei koaxiale Rühreinheiten auf, die derart miteinander in Wirkverbindung stehen, dass diese relativ zueinander bewegbar sind. Damit lassen sich erhebliche Vorteile erzielen. Ein Vorteil besteht beispielsweise darin, dass die Rühreinheiten mit vergleichsweise geringen Dreh- oder Winkelgeschwindigkeit betrieben werden können. Versuche mit Prototypen haben gezeigt, dass der Auflockerungsgrad deutlich verbessert und sich eine nahezu homogene Zweiphasen-Strömung bei der pneumatischen Förderung des Materials in der Förderleitung ergibt.The device has a container for receiving bulk material and a preferably vertical agitator in the operating position for dissolving or loosening the bulk material. Preferably, in the region of the bottom of the container, a transition is arranged, via which the bulk material can be transferred and conveyed into a preferably pneumatic conveying line. Depending on the field of application, a nozzle or a discharge nozzle can be arranged at the user end of the delivery line. The agitator has at least two coaxial stirring units, which are in operative connection with each other so that they are movable relative to each other. This can achieve significant benefits. One advantage, for example, is that the stirring units can be operated at a comparatively low rotational or angular speed. Experiments with prototypes have shown that the degree of loosening significantly improved and results in a nearly homogeneous two-phase flow in the pneumatic conveying of the material in the delivery line.
In einer ersten Ausführungsform kann die erste Rühreinheit feststehend und die zweite Rühreinheit drehbar im Behälter angeordnet sein. Die Vorrichtung kann aber auch zwei drehbare Rühreinheiten aufweisen. Dabei können die erste Rühreinheit und die zweite Rühreinheit getriebemässig derart miteinander verbunden sein, dass die Rühreinheiten mit unterschiedlichen Drehrichtungen und/oder Winkelgeschwindigkeiten um eine gemeinsame Rotationsachse drehbar sind. Das Getriebe kann beispielsweise ein Untersetzungsgetriebe sein, wodurch die Rühreinheiten mit unterschiedlichen Drehzahlen rotieren können. Das Getriebe kann auch Kupplungsmittel umfassen, über die die Rühreinheiten automatisch (z.B. mit einer Fliehkraftkupplung) oder mittels Steuermitteln bzw. durch Ansteuerung an ein Antriebsaggregat zum Antreiben der Rühreinheiten ankuppelbar sind.In a first embodiment, the first stirring unit can be fixed and the second stirring unit can be rotatably arranged in the container. The device may also have two rotatable stirring units. In this case, the first stirring unit and the second stirring unit may be connected to one another in terms of gear in such a way that the stirring units are rotatable about different axes of rotation and / or angular speeds about a common axis of rotation. The transmission may, for example, a reduction gear be, whereby the stirring units can rotate at different speeds. The transmission may also comprise coupling means via which the stirring units can be coupled automatically (eg with a centrifugal clutch) or by means of control means or by control to a drive unit for driving the stirring units.
Besonders vorteilhaft kann es sein, wenn die Vorrichtung ein Getriebe aufweist, mit dessen Hilfe die erste Rühreinheit und die zweite Rühreinheit gegenläufig drehbar sind. Mit einer solchen Anordnung lassen sich auch bei vergleichsweise tiefen Drehzahlen besonders gute Auflösungsergebnisse erzielen.It may be particularly advantageous if the device has a gearbox with the aid of which the first stirring unit and the second stirring unit are rotatable in opposite directions. With such an arrangement, particularly good dissolution results can be achieved even at comparatively low speeds.
Die erste Rühreinheit kann eine Antriebswelle aufweisen oder mit dieser verbunden sein und die zweite Rühreinheit kann eine Hohlwelle aufweisen oder mit dieser verbunden sein, wobei die Antriebswelle in der Hohlwelle aufgenommen ist.The first stirring unit may have or be connected to a drive shaft, and the second stirring unit may have or be connected to a hollow shaft, wherein the drive shaft is received in the hollow shaft.
Besonders vorteilhaft weist die Vorrichtung ein Planetengetriebe auf, über das die erste Rühreinheit und die zweite Rühreinheit getriebemässig miteinander verbunden sind. Planetengetriebe haben den Vorteil, dass sie verschiedene Betriebsweisen und insbesondere auch gegensinnige Drehbewegungen der Rühreinheiten ermöglichen. Ein weiterer Vorteil besteht darin, dass durch den Einsatz eines Planetengetriebes kompakte Vorrichtungen mit vergleichsweise kleinen Aussenabmessungen geschaffen werden.Particularly advantageously, the device has a planetary gear, via which the first stirring unit and the second stirring unit are connected to each other in terms of gear. Planetary gears have the advantage that they allow different modes of operation and in particular also opposing rotational movements of the stirring units. Another advantage is that by using a planetary gear compact devices are created with comparatively small external dimensions.
Das Planetengetriebe kann ein Hohlrad aufweisen, das mit der ersten Rühreinheit starr verbunden oder mittels Kupplungsmitteln verbindbar ist.The planetary gear may have a ring gear which is rigidly connected to the first stirring unit or connectable by means of coupling means.
Die Rührarme der ersten Rühreinheit können mit dem Hohlrad, insbesondere durch Schweissung oder auf andere Art und Weise starr verbunden sein.The stirring arms of the first stirring unit can be rigidly connected to the ring gear, in particular by welding or in another way.
Die erste Rühreinheit und/oder die zweite Rühreinheit kann/können jeweils wenigstens einen, vorzugsweise wenigstens zwei und besonders bevorzugt wenigstens drei und typischerweise sechs von innen nach aussen und insbesondere sich in radialer Richtung erstreckende Rührarme aufweisen. Bei einem in Betriebslage vertikalen Rührwerk liegen die Rührarme vorzugsweise jeweils auf horizontalen Ebenen. Die Rührarme können aber auch geneigt sein.The first stirring unit and / or the second stirring unit may each comprise at least one, preferably at least two, and more preferably at least three, and typically six, stirring arms extending from the inside to the outside and in particular in the radial direction. In a vertical stirrer in operating position, the stirring arms are preferably each on horizontal planes. The stirring arms can also be inclined.
An den Rührarmen können von diesen abstehende und vorzugsweise etwa achsparallel verlaufende zusätzliche Rührabschnitte oder Fortsätze angeordnet sein. Diese zusätzlichen Rührabschnitte können somit bei vertikalen Rührwerken vertikale Rührmittel bilden, wodurch das Auflösen oder Auflockern des Schüttguts je nach Materialeigenschaften noch effizienter ausgeführt werden kann.At the Rührarmen can be arranged by these projecting and preferably approximately axially parallel additional Rührabschnitte or extensions. These additional stirring sections can thus form vertical stirring means for vertical agitators, whereby the dissolution or loosening of the bulk material can be carried out more efficiently depending on the material properties.
Die erste Rühreinheit und die zweite Rühreinheit können jeweils wenigstens einen mit abstehenden Rührabschnitten oder Fortsätzen versehenen Rührarm aufweisen, wobei die zusätzlichen Rührabschnitte der beiden Rühreinheiten vorzugsweise aufeinander zugerichtet sind oder wobei die zusätzlichen Rührabschnitte der beiden Rühreinheiten sich aber auch in dieselbe Richtung erstrecken bzw. gleichartig ausgerichtet sein können.The first stirring unit and the second stirring unit may each comprise at least one stirring arm provided with projecting stirring portions or extensions, wherein the additional stirring portions of the two stirring units are preferably aligned with each other or wherein the additional stirring portions of the two stirring units also extend in the same direction could be.
An den jeweiligen Rührarmen können mehrere Rührabschnitte zum Bilden einer kammartigen Konfiguration angeordnet sein. Die kammartige Konfiguration zeichnet sich durch mehrere hintereinander angeordnete und in gleiche Richtung ausgerichtete Rührabschnitte oder Fortsätze, beispielsweise in Form von Zinken, aus. Die zusätzlichen Rührabschnitte der Rühreinheiten können aufeinander zugerichtet und (selbstverständlich ohne sich gegenseitig zu berühren) ineinander greifend und gegenseitig kämmend angeordnet sein.At the respective stirring arms, a plurality of stirring portions may be arranged to form a comb-like configuration. The comb-like configuration is characterized by a plurality of successively arranged and aligned in the same direction Rührabschnitte or extensions, for example in the form of prongs from. The additional stirring portions of the stirring units can be aligned with one another and arranged (of course without touching each other) intermeshing and meshing with each other.
Am äusseren Ende wenigstens einen Rührarms und vorzugsweise an den äusseren Enden von jedem Rührarm kann sich wenigstens an einer der Rühreinheiten ein vom Rührarm wegragender Rührblattabschnitt anschliessen. Die Rühreinheiten können beispielsweise als Rühranker ausgestaltet sein.At the outer end at least one stirring arm and preferably at the outer ends of each stirring arm, a stirring blade section projecting away from the stirring arm can be attached to at least one of the stirring units. The stirring units can be designed, for example, as stirring stirrers.
Die Vorrichtung kann Mittel zum Abschaben von am Boden verbleibendem Material aufweisen. Solche Abschabmittel können Abstreifsegmente sein, die an wenigstens einem unteren Rührarm befestigt oder angeformt sind. Die Abstreifsegmente können durch schräg gegen den Boden gerichtete Profilteile gebildet sein. Alternativ können die Abschabmittel auch durch Profilabschnitte gebildet sein, die im Radialschnitt an einem Rührabschnitt anschliessen. Ein solcher Profilabschnitt kann ein Endabschnitt sein, der ein freies Ende aufweist.The apparatus may include means for scraping off soil remaining material. Such scraping means may be scraping segments attached or formed on at least one lower stirring arm. The scraper segments can be formed by obliquely directed towards the ground profile parts. Alternatively, the scraping means can also be formed by profile sections which connect in radial section to a stirring section. Such a profile section may be an end section having a free end.
Am Rührblattabschnitt kann ein nach innen gerichteter Endabschnitt anschliessen. Der Endabschnitt kann dabei im Bereich der Innenseite eines Bodens des Behälters zum bodenseitigen Abschaben oder Ablösen von Schüttgut angeordnet sein. Weiterhin kann es vorteilhaft sein, wenn der Rührarm mit dem zugehörigen Rührblattabschnitt und dem Endabschnitt im Radialschnitt eine U-förmige Gestalt ergeben. Insgesamt kann es vorteilhaft sein, wenn eine der Rühreinheiten im Radialschnitt eine etwa U- oder V-förmige Gestalt aufweist und derart ausgestaltet ist, dass sie die andere Rühreinheit umgibt.At the stirring blade section can connect an inwardly directed end portion. The end portion may be arranged in the region of the inside of a bottom of the container for scrapping or detachment of bulk material at the bottom. Furthermore, it may be advantageous if the mixing arm with the associated stirring blade section and the end section produce a U-shaped configuration in radial section. Overall, it may be advantageous if one of the stirring units in the radial section has an approximately U-shaped or V-shaped configuration and is designed such that it surrounds the other stirring unit.
An den jeweiligen Rührarmen kann wenigstens ein Rührzinken angeordnet sein. Bevorzugt sind an den jeweiligen Rührarmen mehrere etwa achsparallel verlaufende Rührzinken angeordnet. Diese Rührzinken können durch die vorgängig erwähnten zusätzlichen Rührabschnitte oder Fortsätze gebildet werden.At least one agitating tine can be arranged on the respective stirring arms. Preferably, a plurality of approximately axially parallel stirring tines are arranged on the respective stirring arms. These stirring prongs can be formed by the previously mentioned additional stirring sections or extensions.
Die Rührzinken können Schraubenabschnitte aufweisen, die in komplementäre Schraublöcher in den Rührarm eingeschraubt oder einschraubbar sind. Auf diese Art und Weise lässt sich das Anwendungsgebiet erweitern. Je nach Bedarf können Rührzinken entfernt, eingesetzt oder auch durch Zinken mit anderen Dimensionen oder Formen ausgewechselt werden.The stirring prongs may have screw portions which are screwed or screwed into complementary screw holes in the stirring arm. In this way, the field of application can be extended. Depending on requirements, stirring tines can be removed, inserted or replaced by tines of other dimensions or shapes.
Die Vorrichtung kann ein Antriebsaggregat zum Antreiben des Rührwerks aufweisen. Das Antriebsaggregat kann beispielsweise ein handelsüblicher Elektromotor sein. Für mobile Einsätze, bei denen keine Stromanschlüsse zur Verfügung stehen, kann die Vorrichtung auch mit einem Verbrennungs- und insbesondere mit einem Dieselmotor als Antriebsaggregat ausgerüstet sein.The device may comprise a drive unit for driving the agitator. The drive unit may be, for example, a commercially available electric motor. For mobile applications in which no power connections are available, the device may also be equipped with a combustion and in particular with a diesel engine as a drive unit.
Die Vorrichtung kann eine Dosiereinheit in Form einer Zellradschleuse zum dosierten Zuführen von Schüttgut in eine Förderleitung und eine Gebläseeinheit zum Erzeugen eines Druckluftstroms zum pneumatischen Fördern des Schüttguts der Förderleitung aufweisen. Die Förderleitung kann vorzugsweise ein flexibler Schlauch sein, wodurch der Anwender auf einfach Art und Weise das freie Ende des Schlauchs platzieren und den Stoff am gewünschten Ort ein- oder auffüllen kann.The device may have a metering unit in the form of a rotary valve for the metered feeding of bulk material into a delivery line and a blower unit for generating a compressed air flow for the pneumatic conveying of the bulk material of the delivery line. The delivery line may preferably be a flexible tube, allowing the user to easily place the free end of the tube and fill or top up the material at the desired location.
Die Gebläseeinheit kann beispielsweise ein Gebläse in axialer oder radialer Bauart sein. Vorstellbar sind auch Drehkolbengebläse. In Frage kommen aber auch andere Bauformen aus der Gruppe der Ventilatoren, Gebläse oder Verdichter.The blower unit may be, for example, a blower in axial or radial design. Also conceivable are positive displacement blowers. Other types of fans, blowers or compressors are also possible.
Die Vorrichtung kann ein Antriebsaggregat aufweisen, mit dem die Rühreinheiten und die Gebläseeinheit sowie gegebenenfalls (d.h. falls vorliegend) eine Dosiereinheit gemeinsam betreibbar oder antreibbar sind.The apparatus may comprise a drive unit with which the stirring units and the fan unit and optionally (i.e., if present) a metering unit are jointly operable or drivable.
Ein weiterer Aspekt der Erfindung betrifft ein Verfahren zum Fördern von Schüttgut und insbesondere zum Einblasen von Einblasdämmstoff, vorzugsweise unter Verwendung der vorgängig beschriebenen Vorrichtung. Das Verfahren umfasst einen Arbeitsschritt, bei dem das in einen Behälter aufgenommene Schüttgut mit einem vorzugsweise vertikalen Rührwerk, enthaltend eine erste und wenigstens eine zweite, zur ersten Rühreinheit koaxial ausgerichteten Rühreinheit, aufgelöst oder aufgelockert wird. Beim Auflöse-Vorgang führt die zweite Rühreinheit eine relative Drehbewegung in Bezug auf die erste Rühreinheit aus. Das Verfahren umfasst sodann weiter den Schritt, dass das derart aufgelöste Schüttgut aus dem Behälter in eine bevorzugte pneumatische Förderleitung überführt wird. Beim Überführen kann das Schüttgut eine Zellradschleuse oder eine andere Dosiereinrichtung passieren.Another aspect of the invention relates to a method for conveying bulk material and in particular for blowing Einblasdämmstoff, preferably using the device described above. The method comprises a working step in which the bulk material received in a container is dissolved or loosened with a preferably vertical agitator, comprising a first and at least one second stirring unit coaxially aligned with the first stirring unit. During the dissolution process, the second stirring unit performs relative rotational movement with respect to the first stirring unit. The method then further comprises the step that the bulk material thus dissolved is transferred from the container into a preferred pneumatic conveying line. During transfer, the bulk material can pass through a rotary valve or another metering device.
Weitere Einzelmerkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen und aus den Zeichnungen. Es zeigen:
- Figur 1:
- Eine schematisierte Darstellung einer erfindungsgemässen Vorrichtung zum Fördern von Schüttgut,
- Figur 2:
- eine schematische Darstellung eines Rührwerks mit einem Planetengetriebe für die
Vorrichtung gemäss Figur 1 , - Figur 3:
- eine Seitenansicht einer erfindungsgemässen Vorrichtung in einer vereinfachten Darstellung,
- Figur 4:
- eine vergrösserte und vereinfachte Darstellung eines Rührwerks für die Vorrichtung gemäss einem weiteren Ausführungsbeispiel,
- Figur 5:
- eine Seitenansicht einer weiteren Vorrichtung mit geöffnetem Deckel,
Figur 6- eine perspektivische Aussenansicht der Vorrichtung aus
Figur 5 (Deckel geschlossen), Figur 7- eine perspektivische Darstellung eines Rührwerks für die Vorrichtung,
- Figur 8a
- eine Draufsicht des Rührwerks aus
Figur 7 , - Figur 8b
- eine Seitenansicht des Rührwerks aus
Figur 7 , - Figur 8c
- eine weitere Seitenansicht des Rührwerks aus
Figur 7 , Figur 9- eine perspektivische Darstellung eines weiteren Rührwerks für die Vorrichtung,
Figur 10- eine perspektivische Darstellung eines weiteren Rührwerks für die Vorrichtung,
Figur 11- eine alternative Ausführungsform der Vorrichtung gemäss
Figur 6 , und Figur 12- eine alternative Vorrichtung in einer Seitenansicht.
- FIG. 1:
- A schematic representation of an inventive device for conveying bulk material,
- FIG. 2:
- a schematic representation of an agitator with a planetary gear for the device according to
FIG. 1 . - FIG. 3:
- a side view of an inventive device in a simplified representation,
- FIG. 4:
- an enlarged and simplified representation of an agitator for the device according to a further embodiment,
- FIG. 5:
- a side view of another device with the lid open,
- FIG. 6
- an external perspective view of the device
FIG. 5 (Lid closed), - FIG. 7
- a perspective view of an agitator for the device,
- FIG. 8a
- a plan view of the agitator
FIG. 7 . - FIG. 8b
- a side view of the agitator
FIG. 7 . - FIG. 8c
- another side view of the agitator
FIG. 7 . - FIG. 9
- a perspective view of another agitator for the device,
- FIG. 10
- a perspective view of another agitator for the device,
- FIG. 11
- an alternative embodiment of the device according to
FIG. 6 , and - FIG. 12
- an alternative device in a side view.
Im Ausführungsbeispiel gemäss
Die jeweiligen Rühreinheiten weisen radial nach aussen gerichtete Rührarme 16, 17 auf. Die jeweiligen Rührarme 16, 17 sind horizontal angeordnet und liegen auf etwa planparallel zum Behälterboden 19 verlaufenden Ebenen. An den äusseren Enden der Arme 16, 17 schliessen etwa rechtwinklig wegragende Rührblattabschnitte 22, 23 an, die aufeinander zugerichtet sind. Es wäre aber auch denkbar, dass eine Rühreinheit gegenüber dem Boden der Vorrichtung feststehend sein kann.The respective stirring units have radially outwardly directed stirring
Wie aus
Im Boden 19 befindet sich als Übergang zur Förderleitung ein Auslass 44, über den das Material in die Förderleitung gelangt. Zum Übergeben des Materials in die Förderleitung weist die Vorrichtung 1 eine Zellradschleuse 9 auf, die der pneumatischen Förderleitung vorgeschaltet ist. Der Übergang 44 könnte grundsätzlich - anstelle am Boden - auch im bodenseitigen Bereich der Seitenwand 18 des Behälters angeordnet sein.In the bottom 19 is located as a transition to the delivery line, an
Mit einem Antriebsaggregat 8 (in
In
Wie das Ausführungsbeispiel gemäss
Wie aus
Die
Weiter zeichnet sich das Ausführungsbeispiel gemäss den
Wie aus
Wie insbesondere die
In
Das Rührwerk 4 gemäss
Das Ausführungsbeispiel gemäss
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP10188710A EP2444569A1 (en) | 2010-10-25 | 2010-10-25 | Method and device for conveying bulk material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP10188710A EP2444569A1 (en) | 2010-10-25 | 2010-10-25 | Method and device for conveying bulk material |
Publications (1)
Publication Number | Publication Date |
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EP2444569A1 true EP2444569A1 (en) | 2012-04-25 |
Family
ID=43877086
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EP10188710A Withdrawn EP2444569A1 (en) | 2010-10-25 | 2010-10-25 | Method and device for conveying bulk material |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202012009728U1 (en) | 2012-10-12 | 2012-12-03 | X-Floc Dämmtechnik-Maschinen GmbH | Device for loosening compressed insulation material |
DE102012020001B3 (en) * | 2012-10-12 | 2013-10-31 | X-Floc Dämmtechnik-Maschinen GmbH | Device for loosening pressed insulating material used in building trade, has knife set provided with several knives whose cutting edges are aligned with respect to supply direction of pressed insulating material |
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US3161442A (en) * | 1962-04-18 | 1964-12-15 | Frank A Reed | Transmission of granular material |
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DE3425895A1 (en) * | 1983-08-12 | 1985-02-28 | Waeschle Maschf Gmbh | Device for metering bulk materials |
US5471917A (en) * | 1993-05-07 | 1995-12-05 | Nestec S.A. | Apparatus for treating ground roasted coffee |
US5511730A (en) | 1994-05-18 | 1996-04-30 | Miller; Michael W. | Insulation blower having hands-free metered feeding |
US5639033A (en) * | 1996-09-11 | 1997-06-17 | Miller; Kerry W. | Insulation blower having hands-free metered feeding |
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US20070246584A1 (en) * | 2006-04-11 | 2007-10-25 | Bowman David J | Single motor blower |
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2010
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US3161442A (en) * | 1962-04-18 | 1964-12-15 | Frank A Reed | Transmission of granular material |
US4091457A (en) * | 1977-05-23 | 1978-05-23 | The Gibson-Homans Company | Mixer for viscous materials |
DE3425895A1 (en) * | 1983-08-12 | 1985-02-28 | Waeschle Maschf Gmbh | Device for metering bulk materials |
US5829649A (en) * | 1993-02-16 | 1998-11-03 | Western Fibers, Inc. | Apparatus for conditioning and dispensing loose fill insulation material |
US5471917A (en) * | 1993-05-07 | 1995-12-05 | Nestec S.A. | Apparatus for treating ground roasted coffee |
US5511730A (en) | 1994-05-18 | 1996-04-30 | Miller; Michael W. | Insulation blower having hands-free metered feeding |
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US20070246584A1 (en) * | 2006-04-11 | 2007-10-25 | Bowman David J | Single motor blower |
US7568642B2 (en) | 2006-04-11 | 2009-08-04 | U.S. Greenfiber, Llc | Single motor blower |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202012009728U1 (en) | 2012-10-12 | 2012-12-03 | X-Floc Dämmtechnik-Maschinen GmbH | Device for loosening compressed insulation material |
DE102012020001B3 (en) * | 2012-10-12 | 2013-10-31 | X-Floc Dämmtechnik-Maschinen GmbH | Device for loosening pressed insulating material used in building trade, has knife set provided with several knives whose cutting edges are aligned with respect to supply direction of pressed insulating material |
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