EP1574455A1 - Emptying device for a bulk container and bulk container - Google Patents

Abstract

A device (10) for removing a pourable granular material from a container (50) comprising a connector unit (24) provided with a gas outlet (28) for delivery of a gas into the container for purposes of loosening the material in it, is new. Independent claims are also included for: (a) a container with the proposed removal device for pourable materials; and (b) a closure unit for a container for pourable materials.

Description

Technical area

The invention relates to an emptying device for emptying bulk material from a Bulk container and a bulk material container and a closure for a bulk material container.

State of the art

For emptying or discharging bulk goods from bulk containers, the Bulk solids discharged through trained in the container walls outlet openings. For this purpose, the bulk containers are typically to an emptying device (also referred to as outlet or docking device or outlet or docking station) connected, which is provided with an inlet opening, which in a passageway opens, through which the bulk material flows (also called outflow) can.

From the document EP 0 915 032 a bulk material emptying device is known which a provided with an inlet connection housing, which with a Passage channel is provided. A provided with an outlet bulk container is so tightly connected to the connection housing that the bulk material when opened Outlet opening out of the bulk material container through the passage channel can flow out.

The bulk material container is indeed comparatively close to those in the document EP 0 915 032 described emptying device connected. On the other hand, at Bulk goods that tend to clump, problems arise during emptying, by the Clumping in the bulk material container hampers the emptying process or even completely block.

The document US Pat. No. 5,474,111 describes a bulk material emptying device, which includes a pointed lance. To empty a sack-shaped bulk container is the hollow lance pierced through the container wall, whereupon the bulk material through a plurality of inlet openings into a passage formed in the lance and flows out of it through the bulk material container. The lance is further provided with a nozzle, through which compressed air in the bulk material container can be blown into it to support the flow of bulk material.

In the case of fine-grained bulk material, that described in US Pat. No. 5,474,111 Emptying device Problems with a sufficiently tight connection the emptying lance to the bulk material container. There is a risk that bulk goods the lance over from the created by the lance perforation from the bulk material container flows out and gets lost.

Presentation of the invention

The object of the invention is a belonging to the aforementioned technical field Specify emptying device and a bulk material container, which dense Connection of the bulk material container to the emptying device and a reliable Allow emptying and removal of bulk materials from the bulk material container.

The solution of the problem is defined by the features of the independent claims. According to the invention, an emptying device for emptying bulk material from a bulk material container, a basic structure and one with an inlet opening provided connecting part on and a passage in which the inlet opening empties. The bulk material container has a closure with a connection flange and a closure member. The connection flange is provided with an outlet opening for the Bulk container provided bulk material, through which the Bulk material can flow out when the outlet opening is open. The closure member is for Closing and optionally opening the outlet opening formed and arranged. The connection flange of the bulk goods container is so close to the connection part of the Emptying device connectable, that - if the connection flange to the Connecting part is connected, d. H. in one to the emptying device connected state of the bulk goods container or its connecting flange - at open closure bulk material through the outlet opening out of the Bulk container out, through the inlet opening into the passageway inside and then flow through the passageway (also as a flow can). The emptying device further has one on the base structure or on the connection part mounted on shutter actuating device, which for a Actuation of the closure of the bulk goods container is formed. The A shutter actuator is provided with a shutter actuator and a shutter actuator Adjustment provided. The adjusting device is designed and arranged in such a way in a state of the closure connected to the connection part, the Closure actuating element by means of the adjusting device optionally between a Closing position and at least one open position with respect to the connection section is displaceable.

The connection section is further provided with a pneumatic gas outlet, and on an outside the connecting flange of the bulk goods container is a pneumatic gas outlet corresponding pneumatic gas inlet of the bulk goods container arranged (here outside with respect to the bulk goods container and the outside of the Connecting flange forms part of the outside of the bulk goods container). The at the Outside of the bulk goods container or its connecting flange arranged pneumatic gas inlet is so to the pneumatic gas outlet of the connection part of the emptying device connectable that pneumatic gas from the emptying device through the pneumatic gas outlet of the connection section and the pneumatic gas inlet of the connection flange can flow through into the bulk material container to a loosening cause of the bulk material container received bulk material and thereby to support the outflow of the bulk material.

Under a pneumatic gas is any suitable for pneumatic applications gaseous fluid (gas medium) understood. Pneumatic gas can z. Air, in particular air, the one compared to the air pressure of the ambient air increased pressure has (usually referred to as compressed air). Pneumatic gas can as well Nitrogen, inert gas, or any other gas suitable for pneumatic applications or gas mixture.

In the context of the present specification and claims, means to the connection section of the emptying device connectable connection flange of the Bulk container, that the connecting flange and the connecting part formed in such a way are that they can be connected together in bulk material conducting function or with each other are connectable. The bulk material container can be moved or moved and the Emptying station be stationary to allow the connection. But it can also the bulk material container stationary and the emptying station movable or displaceable be, or it may be both the bulk container and the emptying station be moved or displaced to allow the connection. In an analogous way means a to the pneumatic gas outlet of the emptying device (or its connection section) connectable pneumatic gas inlet of the bulk material container (or its Connecting flange), that the pneumatic gas inlet and the pneumatic gas outlet in Pneumatikgasleitender function connected to each other or connectable are, in turn, the bulk material container and / or the emptying device traversed or can be displaced to allow the connection.

The base structure can be used as a frame or as a housing of the emptying device be educated. The connection part can be formed as an integral part of the basic structure be. The passageway may also be formed as an integral part of the base structure be. But it can also be formed in an independent component that at the Basic structure of the emptying device is arranged.

The bulk material container may have flexible container walls and z. B. as a sack or as Large container (also referred to as "big bag" or "bulk bag") may be formed. Of the But bulk containers can also have solid container walls and z. B. as barrel or Container be formed.

Under an open or open outlet opening, the outlet opening is open respectively. understood open closure. The closure is then in one Open position.

The closure actuating device can directly on the connection part of the emptying device be stored. The shutter actuator can also on the base structure of the emptying device to be stored.

The closure member may be a solid body (i.e., a closure body) and the shutter actuator can be used to selectively open and close the Closure be formed to a metered discharge of bulk material from the To allow bulk containers. Made of a solid material (eg metal or plastic) manufactured closure body may be formed in particular cone-shaped, which has proven to be particularly advantageous for a metered emptying of bulk material.

But the closure member may also only a perforable batch of the container wall, a perforable film or other perforable closure element. In this Trap, the closure is intended only for a single opening, d. h., it is a one-way closure.

The closure member may substantially in a provided for receiving the bulk material Interior of the bulk goods container, it being in particular in form its closed position a lot of the container wall of the bulk material container can.

There is a pneumatic gas supply through the pneumatic gas outlet of the emptying device and the pneumatic gas inlet of the bulk goods container provided therethrough. For the connection of the pneumatic gas inlet of the bulk goods container to the pneumatic gas outlet The emptying device can use known pneumatic clutches be, with manually and / or automatically operable couplings are possible. The Pneumatic gas supply through the pneumatic gas outlet of the emptying device and the Pneumatic gas inlet of the bulk material container creates the possibility of any clumping Bulk goods in the bulk material container or bulk goods bridges, which are e.g. while have formed the storage or transport in bulk material, by means of pneumatic gas sockets loosen. Such a loosening process is also called fluidization of the Schüttguts called. Due to the possibility of fluidization of the bulk material by means of Pneumatikgasstössen can in particular in the case of bulk goods, which leads to a Clumping or bridging tend to be a danger of blocking the emptying process significantly reduced and thus the reliability of the emptying process be improved.

In addition, the injection of pneumatic gas, a complete, largely residue-free Emptying of the bulk goods container can be achieved, what with previously known Emptying devices, especially when using bulk containers with flexible container walls (e.g., bags) was mostly not possible.

The emptying device may further comprise a control unit for controlling the Pneumatic gas supply to the pneumatic gas outlet include, so that the pneumatic gas controlled by this control unit are injected into the bulk material container can. The control unit can be used to control the pneumatic gas supply depending the bulk material, the level in the bulk material container and / or the Evacuation of a device connected to the passage evacuation device be educated.

By the bulk goods container with a specifically the connection part of the emptying device is provided with a corresponding connection flange, a tight connection of Bulk container ensures the emptying device. This prevents that bulk material flows through the outlet opening past the passage channel and get lost.

The arrangement of the pneumatic gas inlet on an outside of the bulk goods container or its connection flange proves to be moreover advantageous because thereby contamination of the pneumatic gas outlet of the emptying device and the whole Connecting part of the emptying device by the bulk material largely can be avoided. This advantage is particularly true in the case of bulk materials of Importance for which increased purity requirements (for example in the case of pharmaceuticals) or safety (for toxic bulk materials). In contrast to the invention Emptying device is in the interior of the bulk goods container introduced lance tip of the emptying device described in the document US 5,474,111 exposed to heavy contamination by the bulk material. Thereby Every time an elaborate cleaning of the emptying device is required when this is removed after emptying a first bulk container and even if this is to be used again for emptying another bulk goods container.

The pneumatic gas outlet on the connection part of the emptying device can continue advantageously for additional cleaning of the connection part of the emptying device and / or the closure of the bulk goods container. To the completion of the emptying process and in particular even after a detachment namely the connection flange of the connection section can again pneumatic air are blown out through the pneumatic gas outlet so as to be generated by the thus generated Pneumatic gas flow possibly still on the connection section and / or on the connection flange Blow away existing bulk material. If the passageway a Evacuation device is connected, the blown bulk can equal by means of the evacuation device through the inlet opening and the passage channel therethrough be sucked off.

In the case of a bulk goods container with flexible container walls (eg a bulk goods container in the form of a bag) can by means of the shutter actuating device another Advantage can be achieved. The ceiling of the bulk goods container can then at least in a late stage of the emptying process by means of the adjusting device upwardly (e.g., in an open position) displaced shutter actuator be supported to prevent - when the bulk container is almost empty - the flexible bulk material container cover on the bulk material container bottom and / or on the Outlet opening comes to rest and thus a complete emptying of the bulk material container with special needs. In the case of a closure member, the one made of a solid material manufactured closure body, the closure actuating element can this closure body support. The ceiling of the nearly empty bulk container can then open rest on the closure body and be supported by this, which in turn is supported by the shutter actuator, so that the ceiling in turn indirectly is supported by the shutter actuator. In the case of a closing organ, which consists only of a single-use film, the bulk container cover also be supported directly by the shutter actuator. By the direct or indirect support of the bulk material container cover by means of the closure actuating element can even in the case of having flexible container walls Bulk container, which is nowhere suspended during the emptying process, a complete, residue-free emptying of the bulk material container can be achieved.

According to a preferred alternative to one as an integral part of the basic structure Trained connecting section is provided with a pneumatic gas outlet Anschlusspartie formed as part of a kit, which corresponds to the basic structure of the Emptying device is attachable or grown. In an operational state of Emptying device, this kit is firmly attached to the base structure or with this connected. By means of such a kit, the possibility is created, a existing emptying device that does not provide a pneumatic gas outlet is to retrofit in a simple and inexpensive way with a pneumatic gas outlet.

According to a preferred embodiment of the invention, the one with the inlet opening and the pneumatic gas outlet port provided as the first, the emptying device side Construction unit of a common coupling device for the optionally detachable connection (ie the optionally detachable coupling) both the connection flange to the connection section and the pneumatic gas inlet formed on the pneumatic gas outlet. The coupling device comprises a second, bulk container-side construction unit, through the connecting flange is formed. The first and second construction units are in a single coupling operation can be coupled together or connected to one another to the connection flange of the bulk goods container to the connection part of the emptying device and the Pneumatic gas inlet of the bulk material container to the pneumatic gas outlet of the emptying device connect or couple. In this case, the coupling device be mechanically, pneumatically or hydraulically actuated to the coupling process perform. The coupling device is preferably for releasable again Connecting or coupling the two construction units formed together, wherein the coupling device z. B. be designed as a so-called bayonet coupling can. By means of this common coupling device, on the one hand, an evacuation or discharge path for emptying (also referred to as omission) of the bulk material from the Bulk container and on the other hand, a pneumatic gas line to supply the Bulk containers are created with pneumatic gas. The same construction unit thus serves both for coupling the pneumatic gas inlet of the bulk goods container the pneumatic gas outlet of the emptying device as well as for coupling the Connecting flange of the bulk goods container to the connecting section of the Emptying device such that bulk material through the outlet opening of the Bulk container out and through the inlet opening in the passage of the Emptying device flows into it.

As an alternative to a common clutch but also separate clutches for the creation of a bulk material discharge path from the bulk material container to the emptying device and the provision of a pneumatic gas line from the emptying device be provided for bulk containers.

Advantageously, the pneumatic gas outlet is in an outer side of the connection part the emptying device formed as outwardly at least partially open channel, has at least one channel wall, which at the same time as a channel wall of the Passage channel is formed. This allows a particularly simple construction of the Pneumatikgasauslasses and the passage channel can be achieved. The pneumatic gas outlet and the passage channel common channel wall may be on a wall side the channel-shaped pneumatic gas outlet and on the other wall side the passageway or limit its inlet opening. Preferably, the pneumatic gas outlet and the bulk material inlet opening is formed and arranged such that the in the Outside the connecting section formed pneumatic gas outlet channel the bulk material inlet opening partially or even completely surrounds in this outside. It can the inlet opening circular and the pneumatic gas outlet as an annular channel (i.e., as an annular channel), the two being concentric with each other in the outside the connection part are arranged.

However, other variants of the invention are possible in which the pneumatic gas outlet and the inlet opening in the passageway designed differently and / or to each other distant points of the connection part of the emptying device arranged are.

An inventive Eritleerungsvorrichtung is advantageously further with a Provided with the shutter (i.e., the connecting flange and / or the closure member) of the bulk goods container can be coupled, that with the aid of Vibrators generated in the bulk material container bulk material Rüttelbewegungen generated are to cause additional loosening of the bulk material. In connection with the fluidization of the bulk material coming from the through the pneumatic gas inlet in the Bulk container incoming pneumatic gas is effected, thereby the reliability the emptying process be further improved.

Preferably, the passage channel of an inventive emptying device on an evacuation device connected to the outflow of the bulk material from the To support bulk container out by creating a vacuum in the passageway. By this measure, the reliability of the emptying process in addition be improved.

Another preferred variant of the invention is characterized in that the passage channel extends substantially vertically in the region of the inlet opening and downstream the inlet opening has at least one change of direction, according to which the Passage passage in a direction different from the vertical (for example, in a horizontal Direction). The direction change can be made by an arcuate or an angular Part of the passage channel be realized. By means of such a change of direction the possibility is created, the passageway or the emptying device for different purposes, due to the in the field the entrance opening vertically extending channel nevertheless a rapid, by gravity caused flow through the bulk material is guaranteed. Especially in the area However, the deviation from the vertical portion of the passage channel, it is advantageous if the bulk flow continues through an evacuation device and / or by pneumatic gas is supported, passing through a pneumatic gas inlet into the bulk material container into, through the outlet opening together with the bulk material again out of the bulk material container and then through the inlet opening into and through the passageway.

Preferably, the closure actuating element is in the region of the inlet opening in Passage channel arranged and by means of the adjusting device substantially vertically displaceable, wherein the adjusting device comprises an adjusting drive, at least is partially arranged outside the passage channel. By the arrangement of the adjustment outside the passageway becomes contamination of the adjustment largely prevented by bulk material without additional shielding and Sealing devices for the adjustment are required. Next is through the Arrangement of the adjustment outside the passage channel the accessibility to Adjustment drive improves, which is especially for repair and maintenance of Advantage is. In contrast, in known emptying devices that with a vertically displaceable and arranged in a vertically extending passage channel Lock actuator are provided, the adjustment always within the Durchlass.kanals arranged and thereby the contamination by the Suspended bulk flow.

Preferably, the pneumatic gas inlet of a bulk material container according to the invention closed to the interior of the bulk material container from a check valve, which fluid flow through the pneumatic gas inlet in the direction of Bulk container interior allows in, but a fluid flow in reverse Direction out of the bulk material container interior through the pneumatic gas inlet prevented through. Through the check valve is an outflow of bulk material prevents the bulk material container through the pneumatic gas inlet.

As an alternative to a check valve can also be a filter and / or a smaller Cross-section of the pneumatic gas inlet and / or provided a porous membrane Although, to the influx of pneumatic gas through the pneumatic gas inlet through into the bulk goods container to allow the outflow of bulk material into However, to prevent reverse direction. In these variants of the invention, the Pneumatic gas basically in both directions through the pneumatic gas inlet stream. A corresponding closure is thus not only for emptying the Bulk container usable, but it can also be used to fill the Bulk container can be used. In this case, for filling the bulk material together with pneumatic gas through the formed in the connection flange of the closure Feed the bulk material outlet opening into the bulk goods container. The pneumatic gas can then from the bulk material container through the pneumatic gas inlet back out of the Bulk containers flow out while the bulk material in the bulk container returns remains.

In the case of a closed by a check valve pneumatic gas inlet the check valve made of a resilient material valve shut-off have, which also acts as a closing spring of the check valve. If the Pneumatikgaseinlass several opening into the interior of the bulk material container pneumatic gas inlet openings includes that of one of the number of pneumatic gas inlet ports appropriate number of check valves are completed, a be provided only one common valve shut-off of elastic material, the acts as a shut-off as well as a closing spring for all these check valves. This is a particularly simple and inexpensive construction of the bulk material container allows.

The simultaneously acting as a closing valve shut-off valve is preferably such formed and arranged at least partially in the interior of the bulk goods container, that by pneumatic gas passing through the pneumatic gas inlet into the interior flows in the bulk goods container, can be excited to vibrate. The Vibrations are then transferred to the bulk material absorbed in the interior and cause a further loosening of the bulk material. Such a valve shut-off body may be formed in particular as a flat lip, which is attached to the connection flange is and opening into the bulk material container interior passage of the Pneumatic gas inlet completely spanned. If no pneumatic gas through the Passage passes through, the lip (also referred to as kickback sealing lip) by an elastic tension force caused by the elastic material of the lip is taut against the muzzle, so that they are tightly closed by the lip becomes. However, if pneumatic gas, which is subjected to an overpressure, in the Passage of the pneumatic gas inlet is initiated, then the pneumatic gas due its overpressure the non-return sealing lip against the elasticity of the lip lift off the muzzle so that pneumatic gas can pass through the passageway Bulk container interior can flow. The kickback sealing lip is the Swinging (also called flapping) excited. The vibrations become on in the container interior transferred bulk material, which bears against the sealing lip. The vibrations loosen up the bulk material, which leads to a further improvement the emptying process leads.

A bulk material container according to another preferred embodiment of the invention is characterized by the fact that a predominant proportion of the container wall of a flexible material is made, so that the bulk material container is essentially a sack or a so-called "big bag" is. The connection flange of the lock this baggy But the bulk material container is made of a solid material (for example metal or plastic) manufactured. In this connection flange is at least a first passage for bulk material formed, as the outlet opening or as part of the outlet opening for in the bulk material container absorbed bulk material is used. The bulk material outlet can also have multiple passages formed in the connection flange. In addition, in the Connecting flange formed at least one further passage for pneumatic gas, the serves as a pneumatic gas inlet or as part of the pneumatic gas inlet. The pneumatic gas inlet may also have a plurality of passages formed in the connection flange. The connection flange made of a solid material allows a simple and tight connection of the bulk material container to the emptying device itself in the case a bag formed bulk goods container.

To connect the flexible container wall with the connection flange, the container wall be clamped between two parts of the connection flange and only be fastened by means of the force caused by the clamping force on the flange. As an alternative and / or in addition to clamping the container wall but can also be glued by means of an adhesive to the connection flange, in particular in the case a container wall made of paper or cardboard. The container wall can but also be connected by welding to the connection flange, in the case of one out a plastic film manufactured container in particular by Ultrasonic welding.

According to another advantageous aspect of the invention, an emptying device for emptying bulk material from a bulk material container, a basic structure, a connection part provided with an inlet opening and a passageway into which the inlet opens. The bulk container has a closure with a Connection flange and a closure member. The connection flange is with a Provided outlet opening for bulk material received in the bulk material container, through which through which the bulk material can flow out at open outlet opening. The Closure member is for closing and optionally opening the outlet opening trained and arranged. The connecting flange of the bulk goods container is so tight connectable to the connection part of the emptying device that - in one of the Emptying device connected state of the bulk goods container or his Connecting flange - with the closure open, bulk material passes through the outlet opening out of the bulk material container, through the inlet opening into the Passage passage into and then through the passage channel through can.

The emptying device further has one on the base structure or on the Connection part mounted on the shutter actuator, which is for actuation the closure of the bulk goods container is formed. The A shutter actuator is provided with a shutter actuator and a shutter actuator Adjustment provided. The adjusting device is designed and arranged that in a state connected to the connection part of the Closure the closure actuator by means of the adjustment either between a closed position and at least one open position with respect to Connecting party is displaced. The adjusting device comprises a piston-cylinder arrangement with a piston mounted on the base structure or on the connection part and at least one cylinder in which the piston is received such that the Cylinder with respect to the piston in the direction of the cylinder axis is displaceable. Of the at least one cylinder is coupled to the shutter actuator, so that this is drivable by means of the piston-cylinder arrangement to substantially it to move in a straight line with respect to the connecting section. The shutter actuator in turn, in one of the connection part of the emptying device connected state of the bulk goods container so with the closure member coupled, that the closure member is driven by means of the piston-cylinder arrangement. Overall, in a coupled to the closure member state of the Closure actuating element actuation of the closure member by the drive of the shutter actuating element is effected by means of the piston-cylinder arrangement. This Aspect of the invention is also without the provision of a pneumatic gas supply for fluidizing the bulk material in the bulk material container as advantageous.

In contrast to the emptying device known from EP 0 915 032, according to the invention of the piston stationary mounted on the emptying device while the cylinder with respect to the base structure displaceable with the closure member of the Bulk container closure is coupled. When flowing out of the bulk material container therefore flows the bulk material in the direction of the cylinder to the piston on the piston-cylinder assembly over, not in the direction of the piston to the cylinder as in the case of the EP 0 915 032 known emptying device. This inventive arrangement leads to a lower contamination of the piston-cylinder arrangement in the area of Place where the piston protrudes from the cylinder. This creates the opportunity to completely dispense with additional shielding of the piston-cylinder arrangement, even if the piston-cylinder arrangement is completely in the passageway the emptying device is arranged.

The shutter actuating device of the emptying device according to this aspect the invention is for selectively opening the closure in one of the emptying device connected state of the bulk goods container formed. The shutter actuator or the piston can directly at the provided with the inlet opening Be mounted connection part. But you can also s.der as a housing part or Frame part formed base structure of the emptying device to be stored.

Preferably, the piston-cylinder arrangement is pneumatically actuated. The danger of a Contamination of the bulk material during emptying is in the case of a pneumatically actuated Piston-cylinder arrangement smaller than in the case of a hydraulically actuated piston-cylinder arrangement. Basically, for certain applications where not special high requirements regarding the purity of the bulk material are to be kept, but also a hydraulic actuation of the inventive piston-cylinder arrangement possible.

The inventive piston-cylinder arrangement can only a single respect Having the piston displaceable cylinder. Alternatively, the piston-cylinder arrangement but also a plurality of telescopically displaceable cylinder parts exhibit. This allows longer displacement paths. Such piston-cylinder arrangements with a piston and a plurality of telescopically into each other sliding cylinder parts are z. B. for lifting devices for dumping tipping containers known by construction machinery.

According to a further advantageous aspect of the invention, an emptying device for emptying bulk material from a bulk material container, a basic structure, a connection part provided with an inlet opening and a passageway into which the inlet opens. The bulk container has a closure with a Connecting flange and a closure body made of a solid material (eg or plastic) is made. The connection flange is provided with an outlet opening for the Bulk container provided bulk material, through which the Bulk material can flow out when the outlet opening is open. The closure body is for Closing and optionally opening the outlet opening formed and arranged. He is essentially in an intended for receiving the bulk material interior of the Bulk container arranged, in particular in its closed position a Part of the container wall of the bulk material container can form. The connection flange of the Bulk container is so close to the connection part of the emptying device connectable, that - in a state connected to the emptying device of the bulk material container or its connecting flange - with the closure open Bulk material through the outlet opening out of the bulk material container, through the inlet opening into the passageway and then through the Passage channel can flow through. The emptying device further has an on the base structure or on the connection part mounted shutter actuator on, which is designed for actuation of the closure of the bulk goods container.

The shutter actuating device is also provided with a rotary drive which is such can be coupled with the closure body that the closure body by means of the rotary drive one stationary with respect to the connecting portion of the emptying device Rotary axis (hereinafter referred to as the first axis of rotation) is rotatable around. The closure body is designed and arranged such that it can be coupled to the rotary drive is. In addition, the closure body is with respect to the connection flange to a respect Stationary axis of rotation (hereinafter referred to as second axis of rotation) rotatable around. In a coupled state (i.e., when the rotary drive is connected to the Lock body is coupled) coincide the first axis of rotation and the second axis of rotation, so that then the closure body with respect to the connection part of the emptying device and with respect to the connection flange of the closure of the bulk goods container is rotatable about a single common axis of rotation.

By the closure body with respect to the connecting flange (and thus with respect to the Bulk container) is rotated, an additional loosening of the bulk material can be achieved become. By means of this additional bulk material loosening can the reliability the emptying process be further improved. It is clear that this aspect the invention not necessarily in connection with the provision of a pneumatic gas supply for fluidizing the bulk material in the bulk material container and / or with a piston-cylinder arrangement used for driving a shutter actuator must become.

For coupling the closure body with the rotary drive can separate coupling means be provided, which mechanically and / or pneumatically and / or can be hydraulically actuated. But it can also be the closure body and the Rotary drive itself be designed such that they can be coupled together so that the rotary drive the closure body for rotation about the first and the second Rotary axis drives.

During the emptying process, the bulk material container is connected to the connection flange its closure connected to the connection section of the emptying device. The bulk material container is then substantially stationary with respect to the emptying device. In the case of a shutter actuating device, which continues to move the Shutter body is formed, the closure body by means of the shutter actuating device both with respect to the container and with respect to the emptying device slidable and rotatable about a stationary axis of rotation.

The rotary drive can for a continuous, uniform rotation of the closure body be formed around the first and the second axis of rotation around. As alternative and / or in addition to this, however, the rotary drive can also be designed in such a way that that he pulsating rotational movements or alternating rotational or pivotal movements effected in opposite directions of rotation of the closure body.

The provided with the rotary actuator shutter actuator can further with a having the closure body couplable closure actuator and a elongate drive shaft fixedly connected to the shutter actuator, which is coaxial is arranged to the first axis of rotation. D. h., That the drive shaft has a longitudinal axis has and is arranged such that its longitudinal axis coincides with the first axis of rotation, around which the closure body with respect to the connection part of the emptying device is rotatable. Further, the shutter actuating device with a Adjustment be provided, which is designed and arranged such that by means of the adjusting device, the drive shaft together with the shutter actuating element optionally between a closed position and at least one open position substantially parallel (and thus rectilinear) is displaceable to the first axis of rotation. It is the Rotary drive coupled to the drive shaft such that the drive shaft by means of Rotary drive with respect to the connecting part is rotatable about the first axis of rotation. The The shutter actuating element is then displaceable relative to the connection part and rotatable. Further, the shutter actuating element with the closure body is such coupled, that it causes the displacement and rotation of the closure body. In the event of Furthermore, a vaporizer provided with a vibrator is further the vibrator advantageously arranged or attached to this shutter actuating element.

Preferably, one or more comminution elements (e.g. Knives, blades, tines, spiral arms, lamellae, or the like) rotatably mounted, in radial Projecting direction from the drive shaft. The crushing elements can in Passage be arranged and substantially the entire cross section of the Capture passageway. When the drive shaft for rotation about the first axis of rotation driven around, these blades or blades provide for a mechanical Crushing of possible lumps or bridges in the bulk material. This will be another Loosening of the bulk material achieved, resulting in a further improvement of the Emptying process has the consequence.

On the drive shaft can be complementary and / or as an alternative to the one or the several crushing elements additionally one or more bulk material conveying elements be mounted such that they rotate about the first upon rotation of the drive shaft Rotary axis around bulk material along the drive shaft in the manner of a screw conveyor or promote the nature of a turbine, the promotion of the bulk material in the direction of the Inlet opening and the passage channel through. In the case of one with crushing elements Provided drive shaft can also these crushing elements additionally formed and arranged as conveying elements. There may be several conveyor elements be provided, which formed similar to turbine blades or propeller blades and are arranged to effect a bulk material delivery in the manner of a turbine. But it can also be one or more threads of a screw thread be provided as conveying elements to a bulk material conveyance in the manner of a screw conveyor to effect.

Further, one or more loosening elements are preferably on the closure body (e.g., blades, knives, tines, spiral arms, fins, or the like) which are at least partially in the space provided for receiving the bulk material of the Protrude bulk goods container into it. When the closure body for rotation about the axis of rotation driven around, these loosening elements provide in the environment of the Closure body for mechanical comminution and loosening of any Lumps or bridges in the bulk material, which in turn improves the drainage process entails.

On the closure body may be complementary and / or as an alternative to the one or the plurality of loosening elements additionally one or more bulk material conveying elements be mounted so rotatably that they upon rotation of the closure body Bulk material in the manner of a screw conveyor or according to Art a turbine in the direction of the interior of the bulk material container to the outlet opening promote. In the case of a provided with loosening elements closure body These Aufllockerungselemente additionally designed as conveying elements and be arranged. There may be provided a plurality of conveying elements which are similar to Turbine blades or propeller blades are formed and arranged to a bulk material promotion effect in the manner of a turbine. But it can also be one or more Threads of a screw thread can be provided as conveying elements to a To effect bulk material conveying in the manner of a screw conveyor.

According to a further advantageous aspect of the invention, an emptying device for emptying bulk material from a bulk material container one with an inlet opening provided connecting part on and a passage in which the inlet opening empties. The draining device further includes a draining contact section at least partially made of an electrically conductive material is manufactured and grounded.

The bulk material container has a closure with a connection flange and a Closure member. The connection flange is provided with an outlet opening for the Bulk container provided bulk material, through which the Bulk material can flow out when the outlet opening is open. The closure member is for Closing and optionally opening the outlet opening formed and arranged. The bulk goods container further has a bulk material container contact section, which at least partially made of an electrically conductive material.

The connection flange of the bulk goods container is so close to the connection part of the Emptying device connectable that - in one to the emptying device connected state of the bulk goods container or its connecting flange - at open closure bulk material through the outlet opening out of the Bulk container out, through the inlet opening into the passageway inside and then can flow through the passageway. In this to the Connecting part connected state is the bulk material container contact section in Contact with the emptying machine contact section and the bulk goods container contact section is electrically conductive with the emptying device contact section connected by the electrically conductive material of the bulk material container contact section in direct, electrically conductive contact with the electrically conductive material of Emptying device contact section stands.

An electrically conductive material may, for. B. be metallic material. But it can too a composite material or a composite material, which consists of both electrically conductive Material is composed as well as electrically insulating material. In this The meaning in the present context is also an electrostatically dissipative plastic or a plastic with an electrostatic dissipative coating as electrical conductive material understood. Next is in the present context under a Grounding as is common practice an electrically conductive connection with a mass or to understand an earth.

The bulk material container may in particular have flexible container walls and z. B. as Sack or as a large container (also referred to as "big bag" or "bulk bag") formed be. By the bulk container contact section during the emptying process electrically conductively connected to the grounded emptying device contact section, is an electrostatic charge of the bulk material contact area and with prevents this connected bulk container during the bulk material discharge, without for this purpose the bulk material container during the emptying process must be grounded by means of additional electrical conductors. In previously known Draining devices and bulk containers with flexible container walls had to the bulk material container during the emptying process always by means of additional electrical conductors are grounded to allow electrostatic charging of the container prevent.

It is clear that this aspect of the invention is not necessarily related to the provision of a pneumatic gas supply for fluidization of the bulk material in Bulk container and / or with a piston-cylinder arrangement for driving a Closure actuating element and / or one with respect to the connection flange rotatable closure body must be used.

Preferably, the connection part of the emptying device are simultaneously as Discharge device contact section and the connection flange of the bulk goods container at the same time formed as a bulk material container contact section. In this case, the Connecting part at least partially made of an electrically conductive material and grounded, and the connection flange is also at least partially made of an electric made of conductive material. The electrostatic discharge of the bulk goods container can then over the connecting flange of the bulk goods container and the connecting section of the Emptying device done.

Complementing or as an alternative to an emptying device contact section trained connection part, the emptying device can continue a basic structure and one mounted on the base structure or on the connecting section A shutter actuator associated with a shutter actuator and with an adjusting device is provided such that by means of the adjusting the Lock actuator optionally between a closed position and at least an open position is displaceable, wherein the shutter actuating element as Emptying device contact section is formed. That is, that Closure actuator at least partially made of an electrically conductive Material is made and grounded. Next is according to this variant of the invention in Supplement or as an alternative to a bulk container contact section trained connection flange of the bulk material container closure the closure body this closure is formed as a bulk material container contact part, that is, that the Closure body at least partially made of an electrically conductive material is. In a state of the connection flange connected to the connection section the closure body is then in contact with the (electrically conductive and earthed) shutter actuator, and the shutter body is then electrically conductively connected to the shutter actuator. The electrostatic discharge of the bulk material container can then on the closure body of the bulk material container and the closure actuating element of the emptying device take place.

According to yet another aspect of the invention, a bulk goods container has a Closure with a connection flange and a closure body, made of a solid Material (eg metal or plastic) is made. The connection flange is with a Provided outlet for bulk material in the bulk material container, through which through the bulk material can flow out at open outlet. The closure body is designed for closing and selectively opening the outlet opening and arranged. It is essentially in one intended for receiving the bulk material Interior of the bulk goods container, in particular in his Closing a batch of the container wall of the bulk material container can form. In addition, the closure body has a cavity open towards the outlet opening. The connecting flange of the bulk goods container is so close to one with an inlet opening provided connection part of an emptying device connectable that - in one connected to the emptying device state of the bulk material container or its connection flange - with the closure open, bulk material through the outlet opening through out of the bulk material container and through the inlet opening can flow through into the emptying device.

The closure further has a covering member. This is not in one to the emptying device connected state of the bulk goods container so on the connection flange attachable that it is the outlet opening on the outside of the bulk goods container covers and thereby protects. If the connection flange with a Pneumatic gas inlet provided outside, the covering member can additionally also Cover and protect this exterior. The cover member is designed and at least partially through the outlet opening into the cavity of the Closing body arranged projecting into it, that in turn one outwards has open cavity, which is substantially within the cavity of the Closure body is arranged. The cavity of the Abdeckorgans is formed and measure that in him another closure body is partially receivable, the Part of another Veschlusses another bulk container is, with the other Bulk container with its closure and closure body identical to the first Bulk container is formed together with its closure and closure body.

By the cavity of the Abdeckorgans substantially in the cavity of the closure body is arranged and another identical closure body of another identical Closure is partially accommodated in the cavity of the Abdeckorgans is ensured that a plurality of closures identical to each other together with their covering organs can be stacked to save space. It is clear that this Aspect of the invention is not necessarily related to the provision of a Pneumatic gas supply for fluidization of the bulk material in the bulk material container and / or with a piston-cylinder arrangement for driving a shutter actuator and / or with respect to the connecting flange rotatable closure body and / or a manufactured from an electrically conductive material bulk container contact section must be used.

The Abdeckorgan is before emptying the bulk container by means of an emptying device, to which the bulk material container is connected, either perforated or removed from the connection flange to allow bulk material through the outlet opening of the bulk material container can flow through. The covering can a solid body (i.e., a cover body) and for optional mounting and again Removal-be or be formed from the connection flange to a multiple use to allow the Abdeckorgans. Made of a solid material (e.g., metal or metal) Plastic) manufactured cover body may in particular a cone shape corresponding to a be formed cone-shaped closure body. The covering can but also only a rupturable, tear-off or perforable film o. Ä. Be. In this Trap, the cover member is provided only for a one-time covering the closure.

The cover member is preferably further formed such that it in his am Connection flange attached state mechanically secures the closure body and prevents the closure body from accidentally entering the bulk material container is moved and thereby the shutter is opened accidentally. For this Purpose, the Abdeckorgan z. B. be provided with a screw thread and by means of this screw thread and a corresponding screw thread, the Closure body is formed with the closure body via an optionally detachable Be connected screw connection.

The bulk material containers with closures, which are provided with a covering element, may further comprise flexible container walls (eg container walls made of paper, Plastic film, textile fabric or similar foldable materials are made) and the cavities of the covering organs can be further designed and dimensioned in this way, that the closure body together with the them covering the container walls in the Cavities of covering organs be partially absorbable. This will ensure that a plurality of mutually identical bulk goods containers together their closures in an empty and not to the emptying device connected state of bulk containers can be stacked to save space.

From the following detailed description and the totality of the claims result further advantageous embodiments and feature combinations of the invention.

Brief description of the drawings

Fig. 1

eine Entleerungsvorrichtung und einen Schüttgutbehälter gemäss einer ersten bevorzugten Ausführungsart der Erfindung in einer vereinfachten, teilweise vertikal geschnittenen Teildarstellung;

Fig. 2

eine Entleerungsvorrichtung und einen Schüttgutbehälter gemäss einer zweiten bevorzugten Ausführungsart der Erfindung in einer vereinfachten, teilweise vertikal geschnittenen Teildarstellung;

Fig. 3

eine Entleerungsvorrichtung und einen Schüttgutbehälter gemäss einer dritten bevorzugten Ausführungsart der Erfindung in einer vereinfachten, vertikal geschnittenen Teildarstellung;

Fig. 4

den Schüttgutbehälter aus Fig. 3 in einer vereinfachten, teilweise vertikal geschnittenen Darstellung;

Fig. 5

den Schüttgutbehälter aus Fig. 3 sowie einen weiteren Schüttgutbehälter in einer vereinfachten, teilweise vertikal geschnittenen Teildarstellung;

Fig. 6

den Schüttgutbehälter aus Fig. 1 sowie eine Entleerungsvorrichtung gemäss einer vierten bevorzugten Ausführungsart der Erfindung in einer vereinfachten, vertikal geschnittenen Teildarstellung.

The drawings used to explain the embodiments show:

Fig. 1

an emptying device and a bulk material container according to a first preferred embodiment of the invention in a simplified, partially vertically sectioned partial representation;

Fig. 2

an emptying device and a bulk material container according to a second preferred embodiment of the invention in a simplified, partially vertically sectioned partial representation;

Fig. 3

an emptying device and a bulk material container according to a third preferred embodiment of the invention in a simplified, vertically sectioned partial representation;

Fig. 4

the bulk material container of Figure 3 in a simplified, partially vertically sectional view.

Fig. 5

the bulk material container of Figure 3 and another bulk material container in a simplified, partially vertically sectioned partial representation.

Fig. 6

1 and an emptying device according to a fourth preferred embodiment of the invention in a simplified, vertically sectioned partial representation.

Basically, the same parts are provided with the same reference numerals in the figures.

Ways to carry out the invention

Fig. 1 shows an emptying device 10, to which a bulk material container 50 is connected is. The illustration in Fig. 1 is divided vertically in the middle, wherein on the left Side the emptying device 10 and the bulk material container 50 in a closed Position are shown, while on the right side of the emptying device 10 and the bulk goods container 50 are shown in an open position.

The emptying device 10 comprises a housing 20, in which a passage channel 22 is formed with a circular cross-section. The housing 20 has substantially the shape of a rectangular curved pipe section, wherein the passage channel 22nd is formed by the interior of this pipe section. The housing 20 has an im Essentially flat, horizontally arranged circular top, in which a circular Opening 26 is formed, which as an inlet opening 26 for inflowing into the passage 22 Bulk material (not shown) is used. The inlet opening 26 takes the largest Part of the surface of the housing top and opens into a first (upper) end of Passage channel 22.

The uppermost part of the housing 20, which also provided with the inlet opening 26 Housing top comprises, is as a connection part 24 of the emptying device 10th educated. The connection part 24 is made of an electrically conductive material and grounded. At the uppermost outer edge of the connecting section 24 (which at the same time also forms the uppermost outer edge of the housing 20) is an annular collar 25th formed in a horizontal plane from the inside and below Housing party projecting radially outward and for coupling the bulk goods container 50 to the emptying device 10 is used.

In the connecting part 24 formed as the upper part of the passage passage 22 runs in the vertical direction. Below this, the passage 22 has a curved Part, by a rectangular bent lower portion of the tubular housing 20th is formed. After the right-angled bend or bend, the passage opens 22 in an outlet opening 23, in a vertical outer side of the housing 20th is trained. Overall, the passageway 22 extends from that in the housing top trained entrance opening 26 up to that in a vertical outside of the Housing 20 formed outlet opening 23, wherein it is in the region of the inlet opening 26 initially runs vertically downwards, in the lower region of the housing 20 at right angles turns and in the region of the outlet opening 23 extends approximately horizontally.

At the outlet opening 23 a bulk material suction line (not shown) can be connected, which is connected to an evacuation device (not shown) to prevent the outflow of Bulk material out of the bulk material container 50 and through the passageway 22 therethrough by creating a vacuum in the bulk material suction line and in the passageway 22 to support.

In the top of the connecting section 24 is an upwardly open annular channel 28th (Also referred to as annular channel 28), which as compressed air outlet 28 of the emptying device 10 serves. The annular channel 28 extends substantially in a horizontal Plane (i.e., parallel to the top of the connecting section 24) the outer circumference of Along inlet opening 26 and surrounds them completely. The annular channel 28 is below and bounded on two sides by channel walls, which as parts of walls of the housing 20th are formed. Here, the radially inward side wall 29 of the annular channel 28 simultaneously formed as a channel wall 29 of the passage channel 22, which this is limited to the outside in its uppermost area. D. h., The channel inner wall 29th the annular channel 28 is simultaneously formed as an outer wall 29 of the passage channel 22. The radially outer side wall of the annular channel 28 forms at the same time an outer wall of the housing 20 and its connection part 24th

The annular channel 28 is further provided with a compressed air connection 30, which is one of includes obliquely down into the annular channel 28 opening passage through which Compressed air in the annular channel 28 can be supplied. To the compressed air connection 30 a Druckluftzuführleitung (not shown) can be connected, which with a compressed air source (not shown) is connected to supply the annular channel 28 with compressed air. The thin arrows 80 in FIG. 1 show the compressed air flow 80 or its flow direction at.

The emptying device 10 is further provided with a shutter actuating device for optionally opening and closing a closure of the bulk goods container 50 provided. The shutter actuating device comprises an elongate drive shaft 32, a Shutter actuating element 34 and an adjusting device 36.

The drive shaft 32 has a circular cylindrical shape and one through the axis of the circular cylinder defined shaft axis. The drive shaft 32 is in one pass of a guide bushing 38 received and through the guide bush 38 in the direction of the shaft axis slidably and rotatably guided around the shaft axis. The passage of the Guide bushing 38 leads from below through a wall of the housing 20 in the Passage passage 22 into, wherein this wall is a part of the boundary wall of the passage channel 22 forms in the lower arcuate lot. The guide bushing 38 is firmly attached to this wall. The drive shaft 32 is in through the passage of the guide bush 38 leading arrangement arranged such that the shaft axis or their extension in the vertical direction through the center of the inlet opening 26th passes through, wherein an upper portion of the drive shaft 32 in the passageway 22 is arranged is while a lower portion of the drive shaft 32 below and outside the passageway 22 is arranged.

At the top of the drive shaft 32, the shutter actuator 34 is attached. This is essentially a cone-shaped body made of a solid material, the so mounted with its base at the top end of the drive shaft 32 is that the axis of the cone-shaped shutter actuating element 34 coaxial with Axle of the drive shaft 32 is arranged, wherein the tip of the cone, the topmost lot and the circular base of the cone is the lowest part of the shutter actuator 34 form. The shutter actuator 34 is made of an electric conductive material made and grounded.

In the area of the base, a driver ring 45 is on the outer peripheral surface of Shutter actuator 34 attached. The driving ring 45 is one of a made of elastic material with a comparatively large adhesion coefficient. He serves for a frictional connection between the shutter actuating element 34 and a resting on the shutter actuating element 34 closure body 60 and to take the latter by means of frictional force when the shutter actuator 34 or around its axis (that is, the axis of its cone) is moved longitudinally to this axis.

At the bottom, the drive shaft 32 is coupled to the adjustment device 36 such that it by means of the adjusting device 36 either in the direction of the shaft axis with respect to the Housing 20 is vertically displaceable or adjustable up and down. The position with maximally downwardly shifted drive shaft 32 is used as a closed position (in Fig. 1 on the left side) and the position shifted upwards Drive shaft 32 as a fully open position (shown in Fig. 1 on the right side) the emptying device 10 and its drive shaft 32 denotes. Is the drive shaft 32 between its closed position and its fully open position arranged, this is as a partially open position of the emptying device 10th or their drive shaft 32 referred to.

The adjusting device 36 is further formed simultaneously as a rotary drive 36, by means the drive shaft 32 with respect to the housing 20 optionally about the shaft axis is pivotable about 360 degrees back and forth. The adjustment device 36 is mounted on the housing 20 and completely outside the passageway 22 and below arranged by this.

On the drive shaft 32 are below the shutter actuating element several knives 31, 33, 35, 37 rotatably mounted, in the radial direction of the drive shaft 32nd protrude away. In the closed position of the emptying device 10, the blades 31, 33, 35, 37 disposed completely within the passageway 22. In the partial or fully open positions of the emptying device 10 are the knife in Passage passage 22 or just above the inlet opening 26 above the passageway 22 arranged. When the drive shaft 32 during the discharge process to the Shaft axis is pivoted back and forth, serve the blades 31, 33, 35, 37 as crushing elements 31, 33, 35, 37 for comminuting any in the outflowing bulk material existing lumps.

The bulk material container 50 shown in FIG. 1 is a bag 50 with a flexible container wall 53 or bag wall 53, which is made of paper and has the shape of a shell, which is closed on all sides except for the closure described below. By doing bottom, the bottom of the bag 50 forming portion of the bag wall 53 is a closure used. The closure has a connection flange 51, 52 a closure body 60 and a shut-off seal 65 designed as a check-seal lip.

The connection flange is made of an inner flange part 51 and an outer flange part 52 composed, both of which are annular and in the illustration of Fig. 1 are arranged such that their ring axes coincide and substantially run vertically. The two flange parts 51, 52 are made of an electrically conductive Material made. The inner flange part 51 has a circular cylinder shell-shaped part 59, which identifies the shape of a pipe section and a substantially vertical extending circular cylindrical passage 54 bounded laterally, as the outlet opening 54 for in the bag 50 recorded bulk material (not shown) is used. At the top The end of the inner flange 51 is radially (i.e., horizontally) outwardly projecting Part 55 formed, which has the shape of a flat annular disc and at right angles to cylinder jacket-shaped portion 59 of the inner flange 51 is arranged. The outer Flange portion 52 has the shape of a thick annular disc with a central passage, the Diameter is slightly smaller than the outer diameter of the cylinder jacket-shaped Lot 59 of the inner flange portion 51 so that this cylinder jacket-shaped lot 59 under interference fit in the central passage in the annular outer flange portion 52 is plugged into it. In the illustration of FIG. 1, the cylinder jacket-shaped portion 59 of the inner flange portion 51 from above into the central passage in the outer flange portion 52 inserted, so that the two flange 51, 52 fixed by means of interference fit connected to each other. The outer diameter of the outer flange 52 corresponds essentially the outer diameter of the annular disk-shaped uppermost part 55 of the inner flange 51.

At the lowest outer edge of the outer flange portion 52 (which at the same time also the bottom edge of the entire connecting flange forms) is an annular collar 56 integrally formed in a horizontal plane from the inside and above Part of the outer flange 52 protrudes radially outward and for coupling the flange portion 52 and the bag 50 to the connection part 24 of the emptying device 10 serves. The bottom of the connection flange 51, 52 integrally formed collar 56 has the same outer circumference as the uppermost at the connection part 24 of the emptying device 10 molded collar 25th

Further, in the outer flange portion 52 are a plurality of circular compressed air passages 57, 58 are formed, which each have a diameter which is the maximum Channel width of the formed in the top of the connecting section 24 annular channel 28th equivalent. The compressed air passages 57, 58 lead in the vertical direction through the outer flange 52 through. They are the entire circumference of the annular outer flange portion 52 along a circular line having a diameter of the Annular channel 28 corresponding diameter (i.e., eccentric with respect to the annular outer flange portion 52) and serve as compressed air inlet 57, 58, through which compressed air can flow into the bag 50.

The shut-off body 65 is made of a flexible, elastic plastic material and has the shape of a flat, circular disk with a central passage, the diameter of the outer diameter of the cylinder jacket-shaped portion 59 of the inner flange 51 corresponds. The outer diameter of the shut-off body 65 is much larger than the outer diameter of the ring-shaped portion 55 of the inner flange 51 and the outer diameter of the outer flange 52nd

The envelope-like bag wall 53 has in its lowest area (also as the bottom of the bag 50 denotes) a circular opening whose diameter is also the outer diameter the cylinder jacket-shaped portion 59 of the inner flange 51 corresponds. The shut-off body 65 and the bottom of the bag 50 are superimposed Passages or openings arranged such that the cylinder jacket-shaped portion 59 of the inner flange portion 51 from top to bottom successively through the passage in the Shut-off 65, the opening in the bottom of the bag and into the central passage in the outer flange 52 are inserted. The bag wall 53 is in the area of Sack opening at the top of the outer flange 52 glued. Next are the Sack wall 53 in the region of the bag opening and the shut-off 65 in the region of his central passage between the bottom of the annular disc-shaped portion 55 of the clamped inner flange 51 and the top of the outer flange 52 and held on the flange or connected thereto, wherein in the Surrounding the outlet opening 54, the bag wall 53 between the outer flange 52 and the shut-off body 65 is arranged and the latter between the bag wall 53 and the annular disk-shaped portion 55 of the inner flange 51 is arranged. Different In other words, this means that from the inner flange 51 and the outer Flange part 52 composite connection flange and the shut-off body 65 in the Surrounding the outlet opening 54 (i.e., in the vicinity of the bag opening) at the Sack wall 53 clamped and partially glued to this.

In those parts of the bag wall 53, directly above the outer flange 52 trained compressed air passages 57, 58 are arranged, are also in the bag wall Compressed air passages formed. These compressed air passages are indeed of the Covered immediately above shut-off body 65 and - if in the compressed air passages 57, 58 no overpressure or only a slight overpressure prevails - tight completed. If in the compressed air passages 57, 58 but a larger Overpressure prevails, is made of a flexible material shut-off 65th A little deformed by the compressed air, allowing compressed air from the top of the Compressed air passages 57, 58 from sideways between the shut-off 65 and the Sack wall 53 can flow into the interior of the bag 50 into it. The Compressed air flow 80 and its flow direction is shown in Fig. 1 by the thin arrows 80 is shown.

Overall, the shut-off 65 serves as shut-off and closing spring at the same time of check valves, which the compressed air passages 57, 58 to the interior of the bag 50 close and allow a compressed air flow 80 in the bag 50 in, a Compressed air and / or bulk flow in reverse direction out of the bag however, prevent.

The radially outer region of the annular disk-shaped shut-off body 65 protrudes the outer edges of the inner flange 51 and the outer flange 52 before and protrudes into the interior of the bag 50. When compressed air between the bag wall 53 and the shut-off body 65 flows through into the bag 50, this is projecting Area of the shut-off 65 brought to vibrate (also as flutter designated). The vibrations are then applied to the interior of the bag 50 transferred bulk material and cause a loosening of the bulk material.

The closure body 60 is for selectively closing and opening the outlet opening 54 formed and arranged. He is made of a solid, electrostatically dissipative Made of plastic and designed as a hollow, thin-walled cone, the cone shape the likewise conical interior of the closure body 60 substantially the Outer shape of the cone-shaped shutter actuating element of Emptying device 10 corresponds. In the illustration shown in Fig. 1 is the Closure body 60 arranged such that the axis of symmetry of the cone-shaped Closure body is vertical and is arranged coaxially to the axis of the drive shaft, the top of the cone being the topmost part and the circular one open at the bottom Base surface of the cone form the bottom part of the closure body 60. The maximum Diameter of the cone 60 in the area of its base is slightly smaller than that Inner diameter of the inner flange 51 formed in the outlet opening 54, see that the lowermost portion of the closure body 60 with clearance fit in the Outlet opening 54 can be arranged to close them tight, as shown in Fig. 1 is shown on the left side.

The closure body 60 is in the vertical direction with respect to the connection flange 51, 52 can be moved downwards and upwards as well as lifted upwards from the connecting flange to To close or release the outlet opening 54 and thereby the closure to open, as shown in Fig. 1 on the right side. The position with maximum downwardly displaced closure body 60 is used as a closed position of the closure body 60 and the closure referred to. In this in Fig. 1 on the left side shown Position is the base of the closure body 60 within the outlet opening 54 arranged and closes this tight. The position with maximum after above shifted closure body 60 is the fully open position of the closure or of the closure body 60. Is this in Fig. 1 on the right Side shown position is the entire closure body 60 above the outlet opening 54 arranged. Next is the closure body 60 with respect to the connection flange 51, 52 freely rotatable about the vertical axis of symmetry of the cone.

On the top of the connecting section 24 are further three of an elastic sealing material manufactured sealing rings 41, 42, 43 arranged so that they are in one unloaded state (i.e., when no bulk container to the emptying device 10th is coupled) at least partially from the surface plane of the top to protrude above. If - as shown in the illustration of Fig. 1 - the connection flange 51, 52 of the bulk goods container 50 to the connection part 24 of the emptying device 10 is coupled, the sealing rings 41, 42, 43 between the abutting Surfaces of the connection flange 51, 52 and the connection part 24th compressed and then seal passages passing through these surfaces lead and through which bulk material and / or air from the bulk material container 50 into the emptying device 10 and compressed air from the emptying device 10 in the bulk material container 50 can flow into it. A first sealing ring 41 is arranged along the outer circumference of the annular channel 28 and seals the annular channel 28 to the outside. A second sealing ring 42 is the inner periphery of the annular channel 28 arranged along and seals the annular channel 28 from the inside. A third Sealing ring 43 is disposed along the outer circumference of the inlet opening 26 and seals the inlet opening and the passageway 22 in the top of the connection section 24 off.

In order to use the emptying device 10 shown in FIG. 1, bulk material can be removed from the emptying device shown in FIG. At first, a sack 50 shown in FIG. 1 is emptied at the connecting flange 51. 52 of the bag 50 arranged cover member from the connection flange 51, 52 away. Of the Closure of the bag 50 and the shutter actuating device of the emptying device 10 are in their closed positions. Thereafter, the bag 50 together with the connecting flange 51, 52 via the housing 20 of the emptying device 10 transported. Subsequently, the coupling process for coupling the bag 50th introduced to the emptying device 10 by the bag 50 to the housing 20 down becomes. During lowering of the bag 50, the closure body which is open at the bottom becomes 60 over the top over the top of the connecting portion 24 of the housing 20 protruding shutter actuator 34 is slipped, whereby the Connection flange 51, 52 together with the bag 50 with respect to the connecting section 24 and the Housing 20 centered and aligned exactly on this. The bag 50 is so far lowered until the connecting flange 51, 52 with its underside on top of the Housing 20 and its connection part 24 rests. The lowest at the connection flange 51, 52 molded collar 56 is now directly on the top of the connecting section 24 molded collar 25 on. Next, the connecting flange 51, 52 by means of an annular retaining clip 47 on the connection part 24 of the emptying device 10 clamped. Thus, the coupling process is completed, and the bag 50 is located Now in the one shown in Fig. 1, coupled to the emptying device 10 Status.

Overall, provided with the collar 25 connecting portion 24 forms a first, the emptying device side Construction unit and provided with the collar 56 Connecting flange 51, 52 a second, bag-side construction unit of a coupling device, for the optional detachable connection of the connection flange 51, 52 is formed on the connection part 24. The first and second Construction unit can be coupled together in a single coupling operation or connectable to one another with the outlet opening 54 and the compressed air inlet 57, 58 provided connecting flange 51, 52 of the bag 50 to the with the inlet opening 26 and the compressed air outlet 28 provided connection part 24 of Connect emptying device 10 or couple.

In the coupled state shown in Fig. 1, the connecting flange 51, 52nd and the connection part 24 held together by means of the annular retaining clip 47, which along the entire outer circumference of the connecting flange 51, 52 and the Connecting part 24 the molded on the flange 51, 52 collar 56 outside and above and the molded on the connection part 24 collar 25 outside and below surrounds. Further, in the coupled state shown in FIG. 1, those in the outer Flange portion 52 formed passages 57, 58 immediately above the upwardly open Ring channel 28 arranged so that compressed air from the annular channel 28 through the passages 57, 58 can flow into the bag 50 into it. In addition, in that shown in Fig. 1 Coupled state the outlet opening 54 of the bag immediately above the inlet opening 26 of the emptying device 10 arranged so that bulk material and air through the outlet opening 54 out of the bag 50 and out through the inlet opening 26 can flow into the passageway 22 therethrough.

To initiate the emptying process is next by means of the adjustment 36, the drive shaft 32 is shifted upward. This will make it top of the drive shaft 32 mounted closure actuator 34, already in the interior the closure body 60 is arranged, from below against the closure body 60th pressed and raises this to the closure body 60 of the outlet opening 54th lift and thereby the from the connection flange 51, 52 and the closure body 60 formed closure of the bag 50 to open. In this case, the driving ring 45 is between the closure actuator 34 and the closure body 60 compressed and thereby ensures a non-rotatable connection acting by means of adhesion between the shutter actuator 34 and the shutter body 60. The shutter body 60 is by means of the shutter actuating device 32, 34, 36 to a the desired dosage of the bulk material flow corresponding height raised. On the right side of Fig. 2, the closure body 60 in its maximum height via the outlet opening shown. This open position of the closure has a maximum Flow of bulk material out of the sack 50 results.

Once the closure body 60 is lifted from the outlet opening 54, begins Bulk essentially vertically down through the outlet opening through to pour out the sack 50. The thick arrow 82 in Fig. 1 shows the flow of bulk material 82 and their flow direction with the shutter open.

To assist the discharge of bulk material from the bag 50, is by means of the Rotary drive of the adjusting device 36, the drive shaft around the shaft axis around and swung her. As a result, the shutter actuating element 34 and the about this entrained by the driving ring 45 closure body 60 back and forth pivoted, resulting in a loosening of resting on the closure body 60 Bulk material leads. In addition, the attached to the drive shaft 32 are also knives 31, 33, 35, 37 pivoted back and forth, whereby any bulk lumps in the swivel range the knife to be downsized.

Next compressed air through the compressed air port 30, the compressed air outlet 28, the Compressed air inlet 57, 58 and between the bag wall 53 and the shut-off 65 therethrough blown into the bag 50 and at the same time by means of the bulk material suction line connected to the outlet opening 23 evacuation device a vacuum in Passage passage 22 is generated. As a result, on the one hand the shut-off body 65 to flutter stimulated, causing a loosening of the bulk material located on the shut-off leads. On the other hand, the air flow indicated by the arrows 80 is generated in the bag 50, which leads to a further loosening of the bulk material received in the bag 50 leads and also the bulk material through the outlet opening 54 through from the bag 50th In addition, the inlet opening 26 into the passageway 22 into and through the Passage passage 22 along with it.

To end the emptying process, first the rotary drive of the adjusting device 36 stopped and then the drive shaft 32 by means of the adjusting device 36th lowered until the closed position shown in Fig. 1 on the left side again reached is. Thereafter, the retaining clip 47 is removed from the collar 25, 56 and thereby the connection flange 51, 52 decoupled from the connection part 24. Now the bag 50 together with the connection flange 51, 52 lifted a little from the connection section 24 and again generated a strong compressed air flow out of the compressed air connection. This compressed air flow blows possibly still on the connecting section 24 and / or on the flange 51, 52 existing bulk away, whereupon blown away Bulk material by means of the evacuation through the inlet opening and the Suction passage is sucked through. This will cause a cleaning of parts of the Emptying device 10 and the bag 50 reached. Then the Compressed air flow through the compressed air port 30 and the compressed air outlet 28 therethrough and the suction flow in the passage 22 interrupted. If desired, can further, the connecting flange 51, 52 covered again with a covering and then the at least partially emptied bag 50 from the emptying device 10 away.

2 shows an emptying device 110, to which a bulk material container 150 is connected is. The illustration in Fig. 2 is divided vertically in the middle, wherein on the left Side the emptying device 110 and the bulk material container 150 in a closed Position are shown, while on the right side of the emptying device 110 and the bulk goods container 150 are shown in an open position.

The bulk material container 150 or bag 150 shown in FIG. 2 differs from FIG the bulk material container 50 or bag 50 shown in FIG. 1 essentially only in FIG Reference to the formation of the closure member 160 for closing the outlet opening 154. Otherwise, the bag 150 shown in Fig. 2 is formed substantially the same as shown in Fig. 1 bag 50. The bag 150 shown in Fig. 2 has turn a flexible bag wall 153 and a closure provided with a two-piece connection flange 151, 152, a closure body 160 and a shut-off 165 provided is. The two flange parts 151, 152 are made of an electrically conductive material manufactured.

The closure member 160 shown in FIG. 2 for closing the outlet opening 154 is a perforable sheet 160 made of a flexible sheet material, which is shown in FIG closed state on the inner flange 151 of the connecting flange 151, 152 such is welded, that they formed in the inner flange 151 Completely closes outlet opening 154. The through the film 160 and the Connection flange 151, 152 formed closure is only for a single opening of the Closure provided, that is, it is a one-way closure.

The emptying device 110 shown in FIG. 2 differs from that in FIG. 1 shown emptying device 10 essentially only with respect to the training the closure actuator 132, 134, 136 for closing and optional Opening the closure of the bag 150. Otherwise, the shown in Fig. 2 Emptying device 110 substantially the same design as that shown in Fig. 1 Emptying device 10. The emptying device 110 shown in FIG in turn has a housing 122 provided with a passage 122, the uppermost Lot designed as a connecting portion 124 and opening into the passageway 122 with a Inlet opening 126 and a compressed air outlet 128 is provided. The Terminal part 124 is made of an electrically conductive material and grounded.

The shutter actuating device 132, 134, 136 shown in FIG. 2 again comprises an elongated drive shaft 132, a shutter actuator 134 and a Adjusting device 136 for adjusting the drive shaft 132 in the direction of its longitudinal axis. The shutter actuator 134 is mounted on top of the drive shaft 132 and in turn formed as a cone-shaped body, wherein the tip of the cone the uppermost part and the circular base of the cone are the lowest part of the shutter actuating element 134 form. In contrast to that shown in Fig. 1 Closure actuating element 34 is the cone-shaped outer surface of the in FIG. 2 shown shutter actuator 134 with a plurality of sharp Cutting edges 131, 133, 135, 137 provided, which for perforating and blending serve the foil 160 of the closure of the bag 150.

By means of the emptying device 110 shown in Fig. 2, bulk material from the in To empty Fig. 2 illustrated bag 150 is first in a coupling process of Sack 150 coupled to the emptying device 110, wherein this coupling operation with the exception of centering is the same as the coupling process for coupling the in 1 illustrated bag 50 to the emptying device 10 shown in FIG.

After coupling the bag 150 to the emptying device 110 is by means of Adjusting device 136, the drive shaft 132 together with the closure actuating element attached thereto 134 moved up. This will be the cutting edges 131, 133, 135, 137 on the outside of the shutter actuating element 134 in such a way pressed against the film 160 from below so that they perforate and cut them. As a result, the from the connection flange 151, 152 and the film-shaped closure member 160 sack 150 formed closure opened.

Subsequently, the bulk material is in an emptying process, the previously described Emptying process is similar, completely drained from the bag 150. Another one Closing of the bag 150 by means of the film 160 is no longer possible, but the Sack 150 if necessary by means of a cover body, as he in connection with the Figures 4 and 5 described further back, again tight and contamination-free be closed.

3 shows an emptying device 210 to which a bulk material container 250 is connected is. The illustration in Fig. 3 is divided vertically in the middle, with the left Side the emptying device 210 and the bulk material container 250 in a closed Position are shown, while on the right side of the emptying device 210 and the bulk goods container 250 are shown in an open position.

The bulk goods container 250 shown in FIG. 3 is a bag-shaped bulk container 250 (also referred to as "big bag" or "bulk bag"). In Fig. 4, this large container 250 is in Stand alone. 5 shows the large container 250 together with another, to this identical bulk container 350 in a stacked arrangement. The large container 250 shown in FIGS. 3-5 differs from that in FIG Fig. 1 illustrated bag 50 in terms of its dimensions and with respect to several Hang tabs 285, 286 mounted on top of the flexible container wall 253 and allow the bulk container 250 to be hung on a hanger (e.g. Crane). Otherwise, the large container 250 shown in FIGS. 3-5 is essentially the same design as the bag 50 shown in FIG Large container 250 in turn has a flexible container wall 253 and a closure, the is identical to the closure of the bag 50 shown in Fig. 1 and with a two-part Connection flange 251, 252, a conical closure body 260 and a shut-off 265 is provided of a flexible material. The two flange parts 251, 252 are made of an electrically conductive material. The closure body 260 is made of a solid, electrostatic dissipative plastic.

The emptying device 210 shown in FIG. 3 comprises a funnel-shaped housing 220, in which a passageway 222 formed with a circular cross-section is. The housing 220 has a substantially flat, horizontally disposed circular Top in which a circular opening 226 is formed, which serves as an inlet opening 226 for in the passage 222 incoming bulk material (not shown) is used. The inlet opening 226 occupies most of the surface of the housing top and opens into the upper end of the passageway 222.

From the inlet opening 226, the passage channel 222 extends in the vertical direction down to an exit opening 223, wherein the diameter of the passageway 222 decreases smaller due to the funnel shape of the housing 220 downwards.

The uppermost part of the housing 220, which also provided with the inlet opening 226 Housing top is, as a connecting portion 224 of the emptying device 210 formed. The connection part 224 is made of an electrically conductive material manufactured and grounded. At the uppermost outer edge of the connecting section 224 (which at the same time also forms the uppermost outer edge of the housing 220) is an annular Collar 225 integrally formed, which projects radially outward and for coupling the Bulk container 250 to the emptying device 210 is used.

In the top of the terminal section 224 is an upwardly open annular channel 228th formed, which serves as a compressed air outlet 228 of the emptying device 210. Of the Ring channel 228 is provided with a compressed air connection 230, to which a Druckluftzuführleitung (not shown) connected to a compressed air source (not shown) is connected to supply the annular channel 228 with compressed air. The thin arrows 280 in Fig. 3 indicate the compressed air flow 280 and their flow direction.

The emptying device 210 is further provided with a shutter actuating device for optionally opening and closing a closure of the bulk goods container 250 provided. The shutter actuating device comprises a shutter actuating element 234 and an adjusting device 236 provided with a piston-cylinder arrangement 270, 277, 278, a guide rod 267 and a rotary drive 237 is provided.

The piston-cylinder arrangement 270, 277, 278 comprises a piston 270 with a circular cylindrical outer shape, by means of connecting struts 268, 269 fixed to the Housing 220 is connected and stored at this stationary. The piston 270 is in one circular cylindrical cavity of a first downwardly open hollow cylinder 277 such received that the first hollow cylinder 277 in the vertical direction with respect to the Piston 270 is displaceable. The outer shape of the piston 270 substantially corresponds the shape of the cavity of the first hollow cylinder 277. A first sealing ring 271 is on the circular cylinder jacket-shaped outer surface of the piston 270 along the arranged upper edge and seals the between the piston 270 and the first Hollow cylinder 277 formed gap airtight against the outside. A second Sealing ring 272 and a first scraper ring 273 are on the inner surface of the first Hollow cylinder 277 arranged along its lower edge. They write that between the piston 270 and the first hollow cylinder 277 formed gap below the first sealing ring 271 in addition to the outside and prevent the Ingress of bulk material or other dirt particles in this space.

The first hollow cylinder 277 in turn has a kresizylindrische outer shape and is in a circular cylindrical cavity of a second downwardly open hollow cylinder 278 received such that the second hollow cylinder 278 in the vertical direction with respect the first hollow cylinder 277 is displaceable. A third sealing ring 274 is on the circular cylinder jacket-shaped outer surface of the first hollow cylinder 277 along the arranged upper edge and seals the between the first hollow cylinder 277 and the second hollow cylinder 278 formed gap airtight from the outside. One fourth seal ring 275 and a second scraper ring 276 are on the inner surface of the second hollow cylinder 278 along the lower edge thereof. They write that between the first hollow cylinder 277 and the second hollow cylinder 278 formed gap below the third seal ring 274 in addition to the outside and prevent The penetration of bulk material or other dirt particles in this space.

At the top of the second hollow cylinder 278, the shutter actuator 234 is mounted, which is similar to the closure actuator shown in Fig. 1 34. The shutter actuating element 234 is made of an electrically conductive Material made and grounded.

A compressed air line fed by compressed air from an external source of compressed air (not shown) (not shown) passes through the piston 270 into the space between the piston 270 and the first hollow cylinder 277. From this gap a compressed air passage leads to the space between the first hollow cylinder 277th and the second hollow cylinder 278. Overall, by the piston 270, the first Hollow cylinder 277 and the second hollow cylinder 278 a piston-cylinder arrangement with a piston 270 mounted on the housing 220 and two with respect to the piston 270 and telescopically telescoping hollow cylinders 277, 278 created, wherein the Piston-cylinder arrangement 270, 277, 278 pneumatically by means of the compressed air source is operable to the second hollow cylinder 278 and attached to this Shutter actuator 234 in the vertical direction with respect to the housing 220 or the piston 270 to move.

To guide the movement of the second hollow cylinder 278 exactly is a linear guide unit provided with an elongate guide rod 267 fixed to the second Hollow cylinder 278 is attached. The guide rod 267 has a circular cylindrical shape and a rod axis defined by the axis of the circular cylinder which is in vertical Direction runs. The guide rod 267 is mounted in a fixed to the housing 220 Guide bushing 266 slidable in the vertical direction and around the rod axis rotatably guided, wherein the guide rod 267 further displaced in the vertical direction passed through passages in the piston 270 and the first hollow cylinder 277th are formed. The linear guide unit 266, 267 ensures that the sealing or Wiper rings 271-276 between the hollow cylinders 277, 278 and between the first Hollow cylinder 277 and the piston 270 must exert no management forces and therefore not be overburdened.

In the piston 270, a rotary drive 237 is further supported, by means of which the guide rod 267 and associated with this second hollow cylinder 278 with respect to the piston 270th or the housing 220, optionally about 360 degrees back and forth about the rod axis is pivotable or rotatable. The guide rod 267 is thus simultaneously as Drive shaft 267 is formed, by means of which the shutter actuating element 234 for Rotation about the rod axis is driven around.

The whole of the piston-cylinder assembly 270, 277, 278, the guide rod 267th and the rotary drive 237 formed adjustment 236 is within the Passage channel 222 arranged. Due to the only downwardly open hollow cylinder 277, 278 are nevertheless no additional shielding means such as e.g. the in the EP 0 915 032 Rolling membrane required to the piston-cylinder arrangement from contamination by the passageway 222 passing therethrough To protect bulk material.

The shutter actuating element 234 shown in FIGS. 3-5 is one of one solid material produced conical hollow body, the top with its base is mounted on the second hollow cylinder 278 of the adjusting device 236 and means the adjusting device 236 displaceable in the vertical direction and about the axis of the Guide rod 267 is pivotable around back and forth.

In the hollow interior of the shutter actuating element 234 is additionally a pneumatic operable vibrator 239 is arranged, which the shutter actuating element 234 to vibrate or vibrate can stimulate. In the open position of Emptying device 210 and the closure of the large container 250 (in Fig. 3 on the right-hand side), the closure body 260 sits directly on the closure actuating element 234. The vibrations generated by the vibrator are then removed by the vibrator Closure actuator 234 on the closure body 260 and from there to the transferring surrounding bulk material, thereby providing additional loosening of the bulk material is effected.

The entire emptying device 210 shown in FIG. 3 together with the connected thereto Connecting flange 251, 252 of the large container 250 is in the vertical direction with respect to a suspension device (not shown) to which the large container 250 is suspended, movable. This will give the opportunity for continuous stretching of the large container 250 created during the emptying process to always the entire flexible bottom of the large container 250 in the direction of the outlet opening 254 out inclined to keep. Alternatively, for the same purpose, the suspension device with respect to the emptying device 210 to be moved in the vertical direction.

Fig. 4 shows the large container 250 of FIG. 3 in isolation. The illustration in FIG. 4 is divided vertically in the middle. On the left side of the connecting flange 251, 252 of Closure of the large container 250 with a cover member 281 according to a first Variant of the invention covered. On the right side is the connection flange 251, 252 the closure of the large container 250 with a cover member 282 according to a second Variant of the invention covered.

The cover member 281 shown in Fig. 4 on the left side is one of a fixed Material manufactured conical hollow body 281 with a bottom surface open at the bottom. The cone shape of the cover body 281 substantially corresponds to the cone shape At the bottom is on the cover body 281 a radially from the base the conical shape formed outwardly projecting annular disc 263, the outer circumference essentially the outer circumference of the outer flange part 252 of the connection flange 251, 252 corresponds. The annular disc has in the area of its outer circumference an identical outer shape as the collar 225 of the connecting portion 224 of in 3 emptying device 210. This creates the possibility the cover body 281 by means of the same annular retaining clip 247 (or one to this identical retaining clip) optionally releasably on the connection flange 251, 252nd clamp, which also for clamping the connecting flange 251, 252 on the connecting section 224 of the emptying device 210 shown in FIG. 3, as shown in FIG Figures 4 and 5 are each shown on the left side.

In the state clamped to the connection flange 251, 252, the cover body 281 is partially from below through the outlet opening 254 into the cavity of the closure body 260 projecting into it, wherein the downwardly open cavity of the Cover body 281 substantially within the cavity of the closure body 260th is arranged. In this state, the cover body 281 covers the entire connection flange 251, 252 on its underside. In addition, the Abdeckorgan in this state 281 optionally releasably connected to the closure body 260 so that it the Closure body 260 secures mechanically and prevents the closure body 260th accidentally moved into the large container 250 and thereby the shutter unintentionally opened.

The cover member 281 shown in Fig. 4 on the right side is one of a flexible Foil material produced covering film 282. It is the outer circumference of the connection flange along the underside of the outer flange 252 and covers the entire connecting flange 251, 252 on the underside from. In the area inside of the inner flange part 251, the cover film protrudes from below through the outlet opening 254 passes into the cavity of the closure body 260 and in turn forms a downwardly open cavity substantially within the cavity the closure body 260 is arranged.

Fig. 5 shows the large container 250 of Figures 3 and 4 together with another identical large container 350 in a stacked arrangement, the closures the two large containers 250, 350 each with identical Abdeckorganen 281, 282; 381, 382 are covered. The illustration in Fig. 5 is divided vertically in the middle. On the left side are the connecting flanges 251, 252; 351, 352 of the closures of large containers 250; 350 with cover bodies 281, 381 according to the illustrations on the left Side of Fig. 4 covered. On the right side are the connecting flanges 251, 252; 351, 352 of the closures of the large containers 250; 350 with cover sheets 282, 382 according to covered on the right side of Fig. 4.

As shown on the left side of FIG. 5, the closure body 360 of FIG Closure of the further bulk container 350 partially in the cavity of the cover body 281 of the large container 250, wherein the ceiling part of the flexible container wall 353 of the further large container 350 resting on its closure body 360 between this closure body 360 and the covering body 281 of the other Large container 250 is arranged.

Similarly, as shown on the right side of Fig. 5, the closure body 360 of the closure of the other large container 350 partially in the received cavity formed by the cover sheet 282 of the large container 250, the ceiling part of the flexible container wall of the further large container 350 its closure body 360 resting between this closure body 360 and the Covering film 282 of the other large container 250 is arranged.

FIG. 6 shows an emptying device 310, to which the one already shown in FIG. 1 shown bulk goods container 50 of FIG. 1 is connected. In the presentation of FIG. 6 shows the emptying device 310 and the bulk goods container 50 or the bag 50 shown in a closed position.

The emptying device 310 shown in FIG. 6 differs from that in FIG. 1 shown emptying device 10 essentially only with respect to the training the connection part, to which the connection flange 51, 52 of the bag 50th can be connected or connected. Otherwise, the illustrated in Fig. 6 Emptying device 310 substantially the same design as that shown in Fig. 1 Emptying device 10.

The emptying device 310 shown in FIG. 6 again has one with a Through passage provided housing 320. In contrast to that shown in Fig. 1 Emptying device 10 but is the connecting part of the shown in Fig. 6 Emptying device 310 is not formed as the uppermost part of the housing 320. Rather, the connection section is part of a substantially annular Component 321 formed whose inner diameter of the inner diameter of the Passage channel at the top of the housing 320 corresponds. The annular member 321 is part a buildable to the housing 320 or attached kit. The annular Component 321 is fastened to the housing 320 at the top by means of screws (not shown) or grown on this housing 320.

In the top of the annular member 321 are opening into the passageway Inlet opening and a ring-shaped compressed air outlet 328 is formed, which in their shapes and dimensions substantially the corresponding inlet opening 26th or the corresponding compressed air outlet 28 of FIG. 1 Emptying device 10 correspond. Further, the annular member 321 is provided with a Compressed air connection 330 provided, the one from obliquely down into the compressed air outlet 328 Comprises opening passage through which compressed air in the compressed air outlet 328 can be supplied.

In the state shown in FIG. 6, the connection flange 51, 52 of the bag 50 is the second by means of an annular retaining clip 347 on the connection part or of the component 321 and the emptying device 10 clamped. In this state are between the contacting surfaces of the connecting flange 51, 52 and the component 321 three sealing rings 341, 342, 343 arranged to the compressed air outlet 328 and the Passage passage in the transition region between the connecting flange 51, 52 and the seal annular member 321.

The emptying device 310 shown in FIG. 6 in turn comprises one with a cone-shaped shutter actuator 334 provided shutter actuating device. On the outside of the shutter actuating element 334 is a driving ring Mounted 345 which serves a frictional connection between the shutter actuating element 334 and on the shutter actuator 334 to provide resting closure body 60 and the latter by means of friction force take.

In summary, it should be noted that the invention provides a bulk material emptying device and a bulk container to be specified, which is a tight connection the bulk goods container to the emptying device and a reliable emptying of bulk materials from the bulk material container.

Claims (32)

Emptying device (10, 110, 210, 310) for emptying bulk material from a bulk material container (50, 150, 250), which has a base structure (20, 120, 220, 320), one with an inlet opening (26, 126, 226) provided connection part (24, 124, 224), a passage channel (22, 122, 222) into which the inlet opening (26, 126, 226) opens, wherein the connecting part (24, 124, 224) for a tight connection with one Outlet opening (54, 154, 254) provided connecting flange (51, 52, 151, 152, 251, 252) of a closure of the bulk goods container (50, 150, 250) is formed, as well as on the base structure (20, 120, 220, 320 ) or on the connecting part (24, 124, 224) mounted shutter actuating device (32, 34, 36, 132, 134, 136, 234, 236, 334) with a shutter actuating element (34, 134, 234, 334) and with a Adjusting device (36, 136, 236) is provided such that by means of the adjusting device (36, 136, 236) the shutter actuation selement (34, 134, 234, 334) is selectively displaceable between a closed position and at least one open position, characterized in that the connection part (24, 124, 224) with a pneumatic gas outlet (28, 128, 228, 328) is provided, the for connecting a corresponding pneumatic gas inlet (57, 58), which is arranged on an outer side of the connecting flange (51, 52, 151, 152, 251, 252), to the pneumatic gas outlet (28, 128, 228, 328), in that pneumatic gas can flow from the emptying device (10, 110, 210, 310) through the pneumatic gas outlet (28, 128, 228, 328) and the pneumatic gas inlet (57, 58) into the bulk goods container (50, 150, 250) to cause a loosening of in the bulk material container (50, 150, 250) received bulk material. Draining device according to claim 1, characterized in that the connecting part provided with the pneumatic gas outlet (328) is formed as part of a building block 321 attachable or attached to the base structure (320). Emptying device (10, 110, 210, 310) according to claim 1 or 2, characterized in that the connecting part (24, 124, 224) as a first construction unit of a common coupling device for connecting both the connecting flange (51, 52, 151, 152, 251 , 252) is formed on the connection part (24, 124, 224) and the pneumatic gas inlet (57, 58) to the pneumatic gas outlet (28, 128, 228, 328), wherein the first construction unit with a second, by the connecting flange (51 , 52, 151, 152, 251, 252) can be coupled to the coupling device. Emptying device (10, 110, 210) according to one of claims 1 to 3, characterized in that the pneumatic gas outlet (28, 128, 228) in an outer side of the connecting part (24, 124, 224) as outwardly at least partially open channel (28 , 128, 228) is formed, which has at least one channel wall (29), which is simultaneously formed as a channel wall (29) of the passage channel (22, 122, 222). Emptying device (210) according to any one of claims 1 to 4, characterized in that it is further provided with a vibrator (239) which is so coupled to the closure of the bulk material container (250) that by means of the vibrator (239) in the in Bulk container (250) received bulk material shaking movements are generated to cause a further loosening of the bulk material. Emptying device (10, 110, 310) according to one of claims 1 to 5, characterized in that the passage channel (22, 122) is further connected to an evacuation device to the outflow of the bulk material from the bulk material container (50, 150) out by generating a vacuum in the passageway (22, 122) to assist. Emptying device (10, 110, 310) according to one of claims 1 to 6, characterized in that the passage channel (22, 122) in the region of the inlet opening (26, 126) extends substantially vertically and downstream of the inlet opening (26, 126) at least a change in direction, according to which the passageway (22, 122) extends in a direction deviating from the vertical direction. Emptying device (10, 110, 310) according to claim 7, characterized in that the closure actuating element (34, 134, 334) in the region of the inlet opening (26, 126) in the passage channel (22, 122) and arranged by means of the adjusting device (36, 136 ) is substantially vertically displaceable, wherein the adjusting device (36, 136) comprises an adjusting drive (36, 136) which is at least partially outside the passage channel (22, 122) is arranged. Bulk material container (50, 150, 250) with a closure which has a connection flange (51, 52, 151, 152, 251, 252) provided with an outlet opening (54, 154, 254) for bulk material received in the bulk material container (50, 150, 250) ) and a closure member (60, 160, 260) for closing and selectively opening the exit opening (54, 154, 254), wherein the connection flange (51, 52, 151, 152, 251, 252) for a tight connection to a connection part (24, 124, 224) of an emptying device (10, 110, 210, 310) according to one of claims 1 to 8, characterized in that on an outer side of the connecting flange (51, 52, 151, 152, 251, 252) a pneumatic gas inlet (57, 58) is arranged, which is designed for connection to a corresponding pneumatic gas outlet (28, 128, 228, 328) of the connection part (24, 124, 224) such that pneumatic gas from the emptying device (10, 110, 210, 310) through the pneumatic gas outlet (28, 128, 228, 328) and the pneumatic gas inlet (57, 58) can flow into the bulk material container (50, 150, 250) in order to effect a loosening of the bulk material. Characterized in that the connecting flange (51, 52, 151, 152, 251, 252) as a second construction unit of a common coupling device for connecting both the connecting flange (51, 52, 151, 152 , 251, 252) to the connection part (24, 124, 224) and the pneumatic gas inlet (57, 58) to the pneumatic gas outlet (28, 128, 228, 328) is formed, wherein the second construction unit with a first, through the connecting portion (24, 124, 224) formed construction unit of the coupling device is detachable. A bulk material container (50, 150, 250) according to claim 9 or 10, characterized in that the pneumatic gas inlet (57, 58) is closed to the interior of the bulk material container (50, 150, 250) out of a check valve, which fluid flow through the pneumatic gas inlet (57). 57, 58) therethrough in the direction of the bulk goods container interior, but prevents fluid flow in the reverse direction out of the bulk goods container interior through the pneumatic gas inlet (57, 58). Bulk container (50, 150, 250) according to claim 11, characterized in that the check valve has a made of an elastic material shut-off (65, 165, 265), which also acts as a closing spring (65, 165, 265) of the check valve. A bulk material container (50, 150, 250) according to claim 12, characterized in that the shut-off body (65, 165, 265) is formed and arranged at least partially in the interior of the bulk goods container (50, 150, 250) that it by pneumatic gas, the through the pneumatic gas inlet (57, 58) into the interior of the bulk material container (50, 150, 250) flows, can be excited to vibrate to cause a further loosening of the bulk material. A bulk material container (50, 150, 250) according to any one of claims 9 to 13, characterized in that a predominant portion of the container wall (53, 153, 253) is made of a flexible material, while the connecting flange (51, 52, 151, 152 , 251, 252) is made of a solid material, wherein in the connection flange (51, 52, 151, 152, 251, 252) both at least a first passage of the outlet opening (54, 154, 254) and at least one further passage of the pneumatic gas inlet (57, 58) are formed. Kit (321) for attachment to a base structure (320) of an emptying device (310) according to claim 2. Emptying device (210), in particular according to one of Claims 1 to 8, for emptying bulk material from a bulk material container (250) which has a base structure (220), a connecting section (224) provided with an inlet opening (226), a passage channel (222), in which the inlet opening (226) opens, wherein the connecting part (224) for a tight connection of a provided with an outlet opening (254) connecting flange (251, 252) of a closure of the bulk material container (250) is formed, and one of the base structure (220 ) or on the connecting part (224) mounted shutter actuating device (234, 236) which is provided with a shutter actuating element (234) and with an adjusting device (236) such that by means of the adjusting device (236), the shutter actuating element (243) optionally between a closed position and at least one open position is displaceable, characterized in that the Verstellvorrich (236) comprises a piston-cylinder arrangement with a piston (270) mounted on the base structure (220) or on the connection part (224) and at least one cylinder (277) in which the piston (270) is accommodated in such a way, in that the cylinder (270) is displaceable in the direction of the cylinder axis with respect to the piston (270), wherein the cylinder (270) is coupled to the closure actuating element (234) and in a state connected to the connection part (224) of the emptying device (210) of the bulk material container (250) is coupled to the closure member (260) in order to effect actuation of the closure member (260) driven by the piston-cylinder arrangement. Emptying device (10, 210, 310) in particular according to one of claims 1 to 8 or 16 for emptying bulk material from a bulk material container (50, 250), which has a base structure (20, 220, 320), one with an inlet opening (26, 226) and a passage channel (22, 222) into which the inlet opening (26, 226) opens, wherein the connection part (24, 224) for a tight connection with a discharge opening (54, 254) provided connection flange (51, 52, 251, 252) of a closure of the bulk goods container (50, 250) is formed, as well as on the base structure (20, 220, 320) or on the connecting part (24, 224) mounted shutter actuating device (32, 34 , 36, 234, 236, 237, 267, 334), characterized in that the shutter actuating device (32, 34, 334, 36, 234, 236, 237, 267) comprises a rotary drive (36, 237) provided with a closure body (60, 260) of the closure is coupled such that in the coupled state of the closure body (60, 260) by means of the rotary drive (36, 237) about a relative to the connecting part (24, 224) stationary first rotation axis is rotatable. An emptying device (10) according to claim 17, characterized in that the closure actuating device (32, 34, 36, 234, 236, 237, 267, 334) further comprises a closure actuating element (34, 234) which can be coupled to the closure body (60, 260), an elongate drive shaft (32, 267) integral with the shutter actuator (34, 234, 334) disposed coaxially with the first axis of rotation; and an actuator (36, 236, 237) formed and arranged to engage with the shutter Adjusting device (36, 236, 237), the drive shaft (32, 267) together with the closure actuating element (34, 234, 334) is selectively displaceable between a closed position and at least one open position substantially parallel to the first axis of rotation, wherein the rotary drive (36, 237) is coupled to the drive shaft (32, 267) such that the drive shaft (32, 267) by means of the rotary drive (36, 237) with respect to the connecting part (24, 224) about the first Dreha is rotatable around it. Emptying device (10) according to claim 18, characterized in that on the drive shaft (32) at least one in the radial direction of the drive shaft projecting crushing element (31, 33, 35, 37) is mounted rotationally fixed. Emptying device according to claim 18 or 19, characterized in that on the drive shaft one or more bulk material conveying elements are mounted in such a rotationally fixed manner that they turn around the first axis of rotation around the drive shaft with bulk material along the drive shaft in the manner of a screw conveyor or in the manner of a turbine promote. Bulk material container (50, 250), in particular according to one of claims 9 to 14, having a closure which has a connection flange (51, 52, 251, 252) provided with an outlet opening (54, 254) for bulk goods received in the bulk material container (50, 250). and a closure body (60, 260) for closing and optionally opening the outlet opening (54, 254), wherein the connection flange (51, 52, 251, 252) for a tight connection to a connection part (24, 224) of an emptying device (10 , 210, 310) according to any one of claims 1 to 8 or 16 to 20 is formed and wherein the closure body (60, 260) substantially in a space provided for receiving the bulk material interior of the bulk material container (50, 250) is arranged, characterized in that the closure body (60, 260) is rotatable with respect to the connection flange (51, 52, 251, 252) about a second axis of rotation and that the closure body (60, 260) with a rotary drive (36, 237), the a base structure (20, 220) or on the connection part (24, 224) of the emptying device (10, 210) is mounted, coupled in such a way that in the coupled state of the closure body (60, 260) by means of the rotary drive (36, 237) to the second axis of rotation is rotatable around. Bulk material container according to claim 21, characterized in that at least one loosening element is mounted non-rotatably on the closure body, which projects at least partially into the interior of the bulk material container. Bulk material container according to claim 21 or 22, characterized in that the closure body one or more bulk material conveying elements are rotatably mounted such that they upon rotation of the closure body about the second axis of rotation around bulk material in the manner of a screw conveyor or in the manner of a turbine in the direction of the outlet opening promote it. Emptying device (10, 110, 210, 310), in particular according to one of claims 1 to 8 or 16 to 20, for emptying bulk material from a bulk material container (50, 150, 250) which has one with an inlet opening (26, 126, 226) Connecting portion (24, 124, 224) and a passage channel (22, 122, 222) into which the inlet opening (26, 126, 226) opens, wherein the connecting portion (24, 124, 224) for a tight connection with one Outlet opening (54, 154, 254) provided connecting flange (51, 52, 151, 152, 251, 252) of a closure of the bulk goods container (50, 150, 250) is formed, characterized in that the emptying device (10, 110, 210, 310) has at least one emptying device contact part (24, 34, 124, 134, 224, 234, 334), which in a connected to the connecting part (24, 124, 224) state of the connecting flange (51, 52, 151, 152, 251, 252) with a bulk goods container contact section (51, 52, 151, 152, 251, 252, 60, 260) of the bulk material container (50, 150, 250) is in contact, wherein the emptying device contact portion (24, 34, 124, 134, 224, 234, 334) is at least partially made of an electrically conductive material and grounded. Emptying device (10, 110, 210, 310) according to claim 24, characterized in that the connection part (24, 124, 224) at the same time as emptying device contact part (24, 34, 124, 134, 224, 234, 334) is formed. An emptying device (10, 110, 210, 310) according to claim 24 or 25, characterized in that it further comprises a base structure (20, 120, 220, 320) and one on the base structure (20, 120, 220) or on the Connecting portion (24, 124, 224) mounted shutter actuating device (32, 34, 36, 132, 134, 136, 234, 236, 334), which with a shutter actuating element (34, 134, 234, 334) and with an adjusting device (36, 136, 236) is provided such that by means of the adjusting device (36, 136, 236) the closure actuating element (34, 134, 234, 334) is selectively displaceable between a closed position and at least one open position, wherein the closure actuating element (34, 134, 234 , 334) at the same time as emptying device contact portion (24, 34, 124, 134, 224, 234, 334) is formed. Bulk goods container (50, 150, 250), in particular according to one of claims 9 to 14 or 21 to 23, with a closure which has an outlet opening (54, 154, 254) for bulk goods received in the bulk goods container (50, 150, 250) Connecting flange (51, 52, 151, 152, 251, 252) and a closure member (60, 160, 260) for closing and selectively opening the outlet opening (54, 154, 254), wherein the connecting flange (51, 52, 151, 152, 251, 252) for a tight connection to a connection part (24, 124, 224) of an emptying device (10, 110, 210, 310) according to one of claims 24 to 27, characterized in that the bulk material container (50, 150, 250) has at least one bulk material container contact part (51, 52, 151, 152, 251, 252, 60, 260), which is made at least partially from an electrically conductive material and in a connection part (24, 124, 224 ) connected state of the connecting flange (51, 52, 151, 152, 251, 252) is in contact with an emptying device contact portion (24, 34, 124, 134, 224, 234, 334) of the emptying device (10, 110, 210, 310) and is electrically conductively connected to the emptying device contacting portion (24 , 34, 124, 134, 224, 234, 334). Bulk goods container (50, 150, 250) according to claim 27, characterized in that the connecting flange (51, 52, 151, 152, 251, 252) at the same time as a bulk material container contact part (51, 52, 151, 152, 251, 252, 60 , 260) is formed. Bulk goods container (50, 250) according to claim 27 or 28, characterized in that the closure member (60, 260) at the same time as a bulk material container contact portion (24, 34, 124, 134, 224, 234, 334) is formed. Bulk material container (250), in particular according to one of claims 9 to 14 or 21 to 23 or 27 to 29, with a closure which has a connection flange (251, 252) provided with an outlet opening (254) for bulk goods received in the bulk material container (250) and a closure body (260) for closing and optionally opening the outlet opening (254), wherein the connection flange (251, 252) for tight connection to a connection part (254) of an emptying device (210) according to one of claims 1 to 8 or 16 to 20 or 24 to 26 is formed and wherein the closure body (260) is arranged substantially in an interior of the bulk goods container (250) provided for receiving the bulk material and has a cavity open towards the outlet opening (254), characterized in that the closure continues to engage Cover member (281, 282) which in a non-connected to the emptying device (210) state of Schüttgu The container (250) can be attached to the connection flange (251, 252) in such a way that it covers the outlet opening (254) on the outside of the bulk goods container (250), wherein the cover member (281, 282) is formed in such a way and at least partially through the outlet opening (254 ) is arranged projecting into the cavity of the closure body (260) in that it in turn has an outwardly open cavity in which a closure body (360) of an identical bulk material container (350) is partially receivable. A bulk material container (250) according to claim 30, characterized in that the cover member (281) is selectively releasably connected to the closure body (260) in a condition attached to the connection flange (251, 252). Closure for a bulk material container (50, 150, 250) according to one of Claims 9 to 14 or 21 to 23 or 27 to 31.

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