Vibrating conveyor for bulk material

Abstract

A vibrating conveyor for bulk materials includes: a conveying trough or conveying pipe for receiving the bulk material; at least one vibration generator functionally connected to the conveying trough or conveying pipe; and at least one weir disposed in the conveying trough or conveying pipe. The weir has a rear wall and a front wall, the rear wall pointing in the conveying direction (F) of the bulk material, and the front wall pointing in the opposite direction to the conveying direction (F). The rear wall of the weir slopes at least partially from the apex of the weir to the bottom of the conveying trough or conveying pipe in a downward sloping manner in the longitudinal direction of the conveying trough or conveying pipe. The length (l) of the front wall, measured from the bottom of the vibrating portion to the apex of the weir in the longitudinal direction of the conveying trough or conveying pipe. V The length of the rear wall, measured in the longitudinal direction of the conveying trough or conveying pipe from the apex of the weir to the bottom of the jumping portion, is less than (l) R ).

Description

Technical Field

[0001] This invention relates to a vibrating conveyor for bulk materials. Background Technology

[0002] Such a vibrating conveyor may include: a conveying trough or conveying pipe for receiving bulk material; at least one vibration generator functionally connected to the conveying trough or conveying pipe and configured to generate directional vibration excitation for conveying the bulk material through the conveying trough or conveying pipe in a longitudinal direction, wherein the directional vibration excitation has a directional component in the longitudinal direction of the conveying trough or conveying pipe and in a vertical direction opposite to the direction of gravity; and at least one retaining weir disposed in the conveying trough or conveying pipe and configured to slow down the conveying movement of the bulk material through the conveying trough or conveying pipe in the longitudinal direction.

[0003] This type of vibratory conveyor is generally known. Vibration excitation causes bulk material particles to be conveyed through a conveying trough or pipe according to the principle of micro-throwing. In this case, the throw angle is defined by the directional vibration excitation and is generated by the vector addition of the longitudinal component and the directional component in the direction perpendicular to the direction of gravity. Due to the vibration excitation, individual particles of bulk material are accelerated according to the throw angle so that they fall and are re-accelerated, thus the particles migrate longitudinally through the conveying trough or pipe.

[0004] The cross-section of the conveying trough or pipe is usually unaffected and is used only for conveying or metering. In this case, bulk materials typically move at a conveying speed of 3-20 m / min. The conveying speed depends on the product properties, throw angle, frequency of action, and oscillation width (acceleration).

[0005] However, if bulk materials require handling or conditioning during their transport through the trough, their residence time in the trough or pipe is often insufficient. To address this, weirs are installed in the trough or pipe to reduce the longitudinal conveying velocity of the bulk material. The bulk material flows slowly over these weirs. However, it is difficult to predict the impact of such weirs on the transport and handling or conditioning of bulk materials. In adverse conditions, the residence time of bulk material particles in the trough or pipe may vary considerably. The risk of agglomeration and blockage also increases. Furthermore, compacted zones and dead zones may form in the transport flow of bulk materials, failing to disperse stably and affecting the quality of the bulk material.

[0006] US6216850B1 discloses a conveyor including a circulating power drive mechanism for moving products along an elongated trough in the conveying direction, and a flow regulator positioned along the bottom of the trough to normalize the flow of products moving along the longitudinal direction of the trough. The flow regulator includes a plurality of elongated ramp members spaced laterally between the sidewalls of the trough. The angle of the inclined ramp surface of the flow regulator is 25°-45°, and the preferred height of the ramp can be 2.5 inches from the floor in a trough with a typical vertical height of 6 inches. However, the problem of insufficient residence time in the trough remains.

[0007] Other conveyors, as described in GB372610A, US2010 / 018781A1, RU2617306C1, and US4844236A, employ a serrated surface structure on the trough bottom. However, because the tooth height is too low to substantially affect the product's residence time, allowing for handling or adjustment during conveying, this surface structure cannot be considered a weir. Summary of the Invention

[0008] The object of this invention is to find remedies or at least improvements to address these problems. In particular, this invention aims to propose solutions that achieve the most uniform possible residence time for bulk materials and prevent clogging and agglomeration when using weirs.

[0009] This objective can be achieved by a vibratory conveyor for bulk materials with the following characteristics: A vibratory conveyor for bulk materials includes:

[0010] Conveying troughs or conveying pipes are used to contain bulk materials.

[0011] At least one vibration generator is functionally connected to the conveying trough or conveying pipe and configured to generate directional vibration excitation (S) to convey bulk material through the conveying trough or conveying pipe in the longitudinal direction, wherein the directional vibration excitation (S) has directional components in the longitudinal direction of the conveying trough or conveying pipe and in a directional component in a direction perpendicular to the direction of gravity.

[0012] At least one weir, disposed in the conveying trough or conveying pipe, is configured to slow the longitudinal conveying movement of bulk material through the conveying trough or conveying pipe.

[0013] The weir has a rear wall and a front wall, the rear wall pointing in the conveying direction (F) of the bulk material, and the front wall pointing in the opposite direction to the conveying direction (F).

[0014] Wherein, the rear wall of the retaining weir slopes at least partially from the apex of the retaining weir toward the bottom of the conveying trough or conveying pipe in a downwardly inclined manner in the longitudinal direction of the conveying trough or conveying pipe, and

[0015] The length (l) of the front wall, measured in the longitudinal direction of the conveying trough or the conveying pipe from the bottom of the jumping part to the apex of the retaining weir, is... V The length of the rear wall measured in the longitudinal direction of the conveying trough or conveying pipe from the apex of the weir to the bottom of the jumping portion is less than (l) R ).

[0016] The vibrating conveyor is characterized by the special geometry of at least one retaining weir. The retaining weir has a rear wall pointing in the direction of conveying the bulk material and a front wall pointing in the opposite direction to the conveying direction. According to the invention, the rear wall of the retaining weir slopes at least partially from the apex of the retaining weir to the bottom of the conveying trough or pipe in a descending manner in the longitudinal direction of the conveying trough or pipe.

[0017] It has been determined that the length of the front wall measured in the longitudinal direction of the conveying trough or conveying pipe from the bottom runout to the apex of the weir can be selected to be less than the length of the rear wall measured in the longitudinal direction of the conveying trough or conveying pipe from the apex of the weir to the bottom runout.

[0018] Surprisingly, this largely prevents compaction in bulk materials while ensuring sufficient forward transport of the bulk material in the conveying direction with equal residence times. In this case, the residence time of bulk material particles can reach approximately 30 minutes. This, in turn, allows for the processing or conditioning of bulk materials in vibrating conveyors, for which, for example, processing in a mixing vessel, would result in too short a residence time in a vibrating conveyor that only performs conveying or metering functions without a weir.

[0019] Preferred embodiments of the present invention are described in further detail.

[0020] For example, the rear wall can be inclined because it has at least one planar inclined portion for contacting the bulk material. The rear wall may alternatively or additionally have at least one concave curved surface portion and / or one convex curved surface portion. A vertical surface portion is also possible. Furthermore, the rear wall as a whole can also be implemented in the form of an inclined plane or in the form of a convex or concave surface. Therefore, a scooping / throwing effect is achieved through interaction with directional vibration excitation, which also facilitates reliable conveying of bulk material particles with equal residence time.

[0021] Preferably, the rear wall extends across the entire width of the conveying trough or pipe, forcing all particles in the bulk material to cross the apex of the weir as they advance through the trough or pipe, effectively utilizing the aforementioned scooping / throwing effect when the vibrating conveyor is used as intended. A temporary bypass for residual particles, such as for cleaning or product replacement, may be optionally provided, preferably located below the rear wall, to completely empty the vibrating conveyor.

[0022] According to a preferred embodiment of the invention, the ratio of the length of the rear wall measured in the longitudinal direction of the conveying trough or pipe from the apex of the weir to the runout at the bottom of the conveying trough or pipe to the height of the rear wall measured in the vertical direction of the conveying trough or pipe from the bottom of the conveying trough or pipe to the apex of the weir is in the range of 0.5-2.0. It has been determined that this achieves a particularly uniform residence time range for the bulk material particles.

[0023] In particular, the length of the rear wall measured in the longitudinal direction of the conveying trough or conveying pipe from the apex of the weir to the runout at the bottom of the conveying trough or conveying pipe may be less than the height of the rear wall measured in the vertical direction of the conveying trough or conveying pipe from the bottom of the conveying trough or conveying pipe to the apex of the weir.

[0024] According to another preferred embodiment of the invention, the front wall of the weir extends perpendicular to the direction of travel of the bulk material, perpendicular to the bottom of the conveying trough or pipe, and / or in the direction of gravity. This prevents dead points below the rear wall. Surprisingly, the vertical positioning of the front wall has no significant effect on the tilting effect of the rear wall.

[0025] However, preferably, the front wall of the weir has at least one surface portion for contacting the bulk material, which is angled in the longitudinal direction of the conveying trough or pipe to further push the material over the weir. In particular, the surface portion may be angled upwards from the bottom of the conveying trough or pipe toward the apex of the weir in the longitudinal direction of the conveying trough or pipe.

[0026] For example, this upward angle is achieved because the front wall of the weir has at least one concave curved surface for contacting the bulk material and / or one or more beads transverse to the longitudinal and vertical directions. The curved surface and / or beads can further enhance the barrier against approaching bulk material.

[0027] According to another preferred embodiment, the vertical surface portion and the inclined surface portion can be combined with each other on the front wall, such that the front wall of the weir has a first surface portion for contacting bulk material and a second surface portion for contacting bulk material, the first surface portion being adjacent to the bottom of the conveying trough or conveying pipe and extending perpendicular to the bottom of the conveying trough or conveying pipe and / or extending in the direction of gravity, the second surface portion being adjacent to the first surface portion in the direction of the apex of the weir, having a concave bend and / or having one or more beads traversing the longitudinal and vertical directions.

[0028] Preferably, the ratio of the height of the vertical first surface portion to the total height of the retaining weir from bottom to top is 0.05-0.25.

[0029] The number of weirs in the conveying trough or pipe can be selected according to the corresponding requirements. The preferred number is three or more. In the best case, due to the design of the weirs, an "ideal mixing vessel" is formed in the space between the weirs.

[0030] Each weir can be individually fixed in the conveying trough or conveying pipe, allowing the vibrating conveyor to be selectively used with or without weirs. Furthermore, this allows for the addition or reduction of the number of weirs as needed, and the adjustment of the distance between the weirs, thereby regulating the flow behavior of bulk materials through the conveying trough or conveying pipe.

[0031] However, one or more weirs can also be welded to the conveying trough or conveying pipe.

[0032] According to another preferred embodiment, the front wall and the rear wall of the retaining weir are connected to each other at the apex of the retaining weir.

[0033] To enhance the weir's strength, the apex may optionally be formed by a generally horizontal web, which is substantially parallel to the plane defined by the longitudinal and transverse directions of the conveying trough or pipe. The web width is preferably in the range of 2 mm to 40 mm.

[0034] According to another preferred embodiment, the retaining weir has sidewalls extending vertically beyond its apex and has means for installing the retaining weir in a conveying trough or conveying pipe. In this way, the retaining weir can be positioned very flexibly in the conveying trough or conveying pipe.

[0035] The retaining dam is preferably implemented in the form of a metal plate structure. In this case, the rear wall and the front wall can be implemented in the form of formed metal plates. In particular, the rear wall and the front wall can be manufactured from single-piece metal plate elements by metal forming.

[0036] The aforementioned vibratory conveyor can be used for throwing angles in the range of 15°-70°, where the throwing angle is a set angle relative to the longitudinal direction of the directional vibration excitation direction.

[0037] Preferably, vibration excitation is combined with the replenishment of bulk material to the conveying trough or conveying pipe to achieve the longitudinal conveying of bulk material through the conveying trough or conveying pipe. In particular, extremely steep throwing angles can be achieved, which in turn promotes longer residence times.

[0038] The vibration excitation can be connected to the conveyor trough or pipe in virtually any suitable manner. According to a preferred embodiment, the vibration generator includes at least one electromagnetic vibration actuator or at least two vibration motors in the form of unbalanced motors fixed to the conveyor trough or pipe for achieving directional vibration. On the one hand, the direct connection between the electromagnetic vibration actuator or vibration motor and the conveyor trough or pipe allows for a compact design. On the other hand, no connecting device to an external actuator is required. This is particularly suitable for applications with stringent requirements for cleanliness and hygiene. Attached Figure Description

[0039] Figure 1 A three-dimensional view of a first exemplary embodiment of the vibratory conveyor according to the present invention is shown;

[0040] Figure 2 It shows Figure 1 The longitudinal section of the retaining weir of the vibrating conveyor;

[0041] Figure 3 The longitudinal section of the first variant of the retaining weir is shown;

[0042] Figure 4 The longitudinal section of the second variant of the retaining weir is shown;

[0043] Figure 5 The longitudinal section of the third variant of the retaining weir is shown;

[0044] Figure 6 The longitudinal section of the fourth variant of the retaining weir is shown;

[0045] Figure 7 The longitudinal section of the fifth variant of the retaining weir is shown;

[0046] Figure 8 A three-dimensional view of an exemplary embodiment of the installable retaining dam of the present invention is shown;

[0047] Figure 9 The longitudinal section of the sixth variant of the retaining weir is shown;

[0048] Figure 10 The longitudinal section of the seventh variant of the retaining weir is shown;

[0049] Figure 11 The longitudinal section of the eighth variant of the retaining weir is shown; and

[0050] Figure 12 A top view of a vibratory conveyor of another design variation of the present invention is shown. Detailed Implementation

[0051] Figure 1 An exemplary embodiment of the present invention illustrates a vibratory conveyor 10 for bulk materials.

[0052] The vibrating conveyor 10 includes a conveying trough 20 for receiving bulk materials and has a trough-shaped cross-section. The conveying trough 20 opens upward on one longitudinal side. However, a conveying pipe may be used instead of the conveying trough 20.

[0053] At least one vibration generator 30 is functionally connected to the conveying trough 2. The vibration generator is configured to generate directional vibration excitation S for conveying bulk material through the conveying trough 20 in the longitudinal direction x.

[0054] In this example, the directional vibration excitation S has a directional component in the longitudinal direction x of the conveying trough 20 and in the vertical direction opposite to the gravity direction z.

[0055] As a result, according to the initially described micro-throwing principle, the particles of bulk material are conveyed through the conveying trough 20 in the conveying direction F. After a single particle is introduced into the conveying trough from the supply end 21 and subsequently falls again, the single particle is repeatedly accelerated in the direction S, which extends upward relative to the longitudinal direction x of the conveying trough 20. This process is repeated continuously until the particle finally reaches the conveying end 22 of the conveying trough 20. Preferably, the throwing angle α between the direction S of the directional vibration excitation and the longitudinal direction x is in the range of 15°-70°. By replenishing the bulk material into the conveying trough 20, the bulk material can be propelled forward in the conveying trough 20. Then, the conveying motion is achieved by combining the vibration excitation with the replenishment of the bulk material.

[0056] In the exemplary embodiment shown, the vibration generator 30 is formed by two vibration motors 31 fixed on the conveying trough 20. However, it is also possible to provide two or more vibration motors 31 on the conveying trough 20. Vibration excitation can also be generated by an electromagnetic driver. Alternatively, vibration excitation can be generated by a separate driver and transmitted to the conveying trough 20 via a transmission device.

[0057] The conveying trough 20 is supported on the ground by spring devices 40 (e.g., in the form of multiple helical springs 41) to allow for the corresponding degrees of freedom of vibrational motion. However, Figure 1 The elastic support shown is merely an example and can be implemented in different ways.

[0058] At least one weir 50 is provided in the conveying trough 20 to reduce the conveying speed in the conveying direction F. Multiple weirs 50 are typically provided one after another in the conveying direction F of the conveying trough 20. Preferably, three or more weirs 50 are provided to slow the conveying movement of bulk material through the conveying trough 20 in the longitudinal direction x.

[0059] Each retaining weir 50 is detachably fixed in the conveying trough 20. In this way, the vibrating conveyor 10 can be selectively used with or without the retaining weirs 50. Furthermore, this allows the number of retaining weirs to be changed as needed, and the distance between the retaining weirs can be varied. In this way, the vibrating conveyor 10 can be flexibly adapted to corresponding requirements. However, these retaining weirs 50 can also be welded to the conveying trough 20.

[0060] These weirs 50 are specially designed to achieve the most uniform possible residence time for bulk materials and to prevent blockage and agglomeration. See below for reference. Figures 2-5 This will be described in more detail.

[0061] Each weir 50 has a rear wall 51 pointing in the conveying direction F of the bulk material and a front wall 52 pointing in the opposite direction to the conveying direction F. The rear wall 51 and the front wall 52 intersect at a vertex 53 and are preferably connected to each other.

[0062] The retaining weirs 50 extend upward from the bottom 24 of the conveying trough 20 and preferably occupy the entire width of the conveying trough 20 in its lateral direction y. Therefore, bulk material particles must pass over the apex 53 of all the retaining weirs 50 in the conveying trough 20 in order to be conveyed from the supply end 21 to the conveying end 22.

[0063] According to the present invention, such as Figures 1-5 As shown, the rear wall 51 of the retaining weir 50 is inclined at least partially from the apex 53 of the retaining weir 50 to the bottom 24 of the conveying trough 20 in a downwardly inclined manner in the longitudinal direction x of the conveying trough 20.

[0064] exist Figure 1 and Figure 2 In the exemplary embodiment shown, the rear wall 51 has at least one concave curved surface portion for contacting the bulk material. When directional vibration is applied in direction S, this concave curved surface portion acts like a shovel on the bulk material. It has been determined that, due to this shoveling effect, the compaction effect of the bulk material can be largely prevented. Furthermore, the residence time of the bulk material is relatively long, up to about 30 minutes, so it can be sufficiently conveyed forward in the conveying direction F. In summary, this allows for a residence time range with small variations for the bulk material particles, thereby advantageously affecting the quality of the bulk material.

[0065] Compared to a simple conveying trough, the residence time of bulk materials in the vibrating conveyor 10 of the present invention is significantly extended, thus the vibrating conveyor can be used for predetermined processing and conditioning of bulk materials. The individual compartments 11 are separated from each other by continuous weirs 50 and can be considered as continuous mixing vessels.

[0066] Preferably, the dimension of the rear wall 51 is: the length l of the rear wall 51 measured in the longitudinal direction x of the conveying trough 20 from the apex 53 of the retaining weir to the runout at the bottom 24 of the conveying trough 20. R The height h of the rear wall 51, measured in the vertical direction z from the bottom 24 of the conveying trough 20 to the apex 53 of the retaining weir 50. R The ratio is in the range of 0.5-2.0.

[0067] Specifically, the length l of the rear wall 51 R The height h can be selected to be less than 51 of the rear wall. R .

[0068] However, the length l of the rear wall 51 R The height h is greater than 51 on the rear wall. R Implementation examples can also be carried out.

[0069] exist Figure 1 and Figure 2 In the exemplary embodiment shown, the front wall 52 of the retaining weir 50 is also inclined in the longitudinal direction x.

[0070] In particular, Figure 2 As shown, the front wall 52 in this example has a first surface portion 52a for contacting bulk materials, which is adjacent to the bottom 24 of the conveying trough 20 and extends in a direction perpendicular to the bottom 24 of the conveying trough 20, and / or extends in the gravity direction z. If the longitudinal direction of the conveying trough 20 is inclined relative to the horizontal plane, the direction perpendicular to the bottom 24 and the gravity direction z may also deviate slightly.

[0071] In addition, Figure 2 In this structure, the front wall 52 has a second surface portion 52b for contacting the bulk material. The second surface portion 52b is adjacent to the first surface portion 52a in the direction of the apex 53 of the retaining wall 50, and in this example, it is implemented in the form of an inclined plane. This angle propels the bulk material over the retaining wall 50.

[0072] A bead 52c is formed in the area connected to the first surface portion 52a, increasing the rigidity of the front wall 52. This is also beneficial to the quality of the movement of bulk material on the weir 50.

[0073] Preferably, the height h of the first surface portion 52a V1The ratio of the total height h of the retaining weir 50 from bottom 24 to top 53 is in the range of 0.05-0.25.

[0074] Can be Figure 2 The retaining weir 50 shown in the figure has been modified in several ways.

[0075] For example, in other design variations, the rear wall 51 may have one or more planar surface portions 51a, 51b, which may optionally have different angles of inclination, such as Figure 4 As shown.

[0076] according to Figure 5 The rear wall 51 may also have a convex curved surface 51c for contacting bulk materials, which in this example is adjacent to the concave curved surface.

[0077] Figure 6 A rear wall 51 is shown, comprising a vertical surface portion 57 (i.e., a surface portion without inclination) combined with a surface portion that slopes downwards (a concave surface portion in this example). However, the sloped design may differ from the concave surface portion described above with reference to other design variations. The vertical surface portion is located near the bottom 24 of the conveying channel 20, but may also be located near the apex 53 or between the two sloped portions.

[0078] Concave, flat, and convex surface portions of different designs can be combined with each other, as long as a basic downward tilt of the rear wall 51 in the conveying direction F is achieved. Vertical surface portions may also be included. All permutations and combinations are considered disclosed and claimed herein.

[0079] according to Figure 7 This explicitly includes the selection of a continuously sloping rear wall 51 from apex 53 to bottom 24. Regarding this, Figure 7 The convex design was used as an example. However, continuous concave surfaces or inclined planes can also be used.

[0080] The design of the front wall 52 can also be different. Figure 2 The design shown.

[0081] exist Figure 3 In the first design variant shown, the second surface portion 52d is in harmony with... Figure 2 Different concave designs are used.

[0082] according to Figure 4 The example shown can also be replaced by two planar surface portions 52e and 52f with different tilt angles. Figure 2 The second planar surface portion 52b.

[0083] In principle, the concave part can also be set on the front wall 52.

[0084] Similar to the rear wall 51, the front wall 52 may also include combinations of planar surface portions, concave surface portions, and / or convex surface portions. For example... Figure 7 As shown, the front wall 52 may also include a continuous plane from the apex 53 to the bottom 24, and a choice of concave or convex designs.

[0085] By creating beads 52g between different designed surface sections, the front wall 52 can be enhanced to resist approaching bulk materials.

[0086] Figure 5 The option of terminating a weir 50 opposite to the conveying direction F is also shown, with its front wall 52 extending perpendicularly to the bottom 24 of the conveying trough 20 and / or extending in the gravity direction z. The aforementioned scooping effect will not be affected by this measure.

[0087] The presented rear wall structure and front wall structure can be combined with each other arbitrarily.

[0088] Typically, the length l of the front wall 52, measured in the longitudinal direction x of the conveying trough 20, extends from the runout at the bottom 24 of the conveying trough 20 to the apex 53 of the retaining weir 50. v It can be less than the length l of the rear wall 51 measured in the longitudinal direction x of the conveying trough 20 from the apex 53 of the retaining weir 50 to the runout of the bottom 24 of the conveying trough 20. R .

[0089] The apex 53 of the retaining weir 50 may be formed by a narrow horizontal web 56, which connects the rear wall 51 and the front wall 52 to each other and further reinforces the retaining weir 50. Optionally, this web 56 is used in all of the aforementioned retaining weir geometries. The aforementioned dimension indication refers to the center of the web 56.

[0090] Figure 8 An example of a retaining weir 50 that can be installed in a conveying trough 20 is shown. The rear wall 51 and front wall 52 are implemented as shaped metal sheets, connected to each other in the region of apex 53. If a horizontal web 56 is to be provided, the horizontal web 56 can be integrally formed on the rear or front wall by bending. The rear and front walls can also be manufactured from single metal sheet elements, for example, by bending.

[0091] The sidewalls 54 are respectively fixed (particularly welded) to the end regions of the retaining weir 50 in the transverse direction y and have means for installing the retaining weir in the conveying trough 20. For this purpose, the upper portion 55 of the sidewalls 54 can be bent outward so that they can be supported on the edge of the conveying trough 20. Fixation on the edge of the inner conveyor can be achieved by screws, clamps, welding or other means.

[0092] Figures 9-11Other design variations of the retaining weir 50 are shown. In these variations, the runouts on the bottom side of the rear wall 51 are located near the bottom 24 of the conveying trough 20. In this case, the runouts of the rear wall 51 are particularly suitable for contacting and / or reaching the bottom 24. Specifically, the rear wall 51 can be supported on the bottom 24 of the conveying trough 20 by its end edge.

[0093] However, in Figures 9-11 In the design variant shown, this is not the case. Nevertheless, in these examples, the rear wall 51 is also inclined at least partially from the apex 53 of the weir 50 toward the conveyor 20 or optionally toward the bottom 24 of the conveyor pipe in the longitudinal direction of the conveyor trough or pipe, in order to achieve a scooping or throwing effect.

[0094] Accordingly, in this example, gap 59 is positioned between the end edge 58 of the retaining weir 50 located in the conveying direction F and the bottom 24 of the conveying trough 20. The end edge 58 does not contact the bottom 24, but is slightly spaced from it in the vertical direction z. This prevents mechanical overdeterminations of the support for the retaining weir 50 in the conveying trough 20 or conveying pipe. Preferably, the height of gap 59 is limited to approximately no more than one-third of the height h of the retaining weir 50. In other words, the rear wall 51 does not need to terminate at the bottom 24, because the particles of the bulk material at the bottom 24 are conveyed away from the rear wall 51 due to vibration excitation, so gap 59 is not disadvantageous, but mainly reduces mechanical overdeterminations of the support.

[0095] Figure 10 The selection of the end edge 58 is shown in the form of the lower edge of the substantially vertical surface portion 58a. This forms a ridge in the region of the end edge 58, further reinforcing the rear wall 51. The surface portion 58a and the ridge are configured such that they extend vertically in the gravitational direction z and the lateral direction y, respectively, but optionally, they may be slightly inclined relative to the gravitational direction z.

[0096] In other respects, the advancements of the rear wall 51 and the front wall 52 can be designed in the manner described above.

[0097] according to Figure 11A closable opening 60 corresponding to the gap 59 is provided on the front wall 52. Preferably, the opening 60 is located near the bottom of the front wall 52. In particular, the opening cross-section of the opening 60 may be directly adjacent to the bottom 24 of the conveying trough or conveying pipe. The opening 60 interacts with the gap 59, allowing the conveying trough 20 to be completely emptied when needed, for example, for cleaning or for product replacement. In this case, bulk material residue does not need to cross the apex 53 of the weir 50, but is instead carried away along the bottom 24. In this case, no additional suction device is required to completely empty the conveying trough.

[0098] Closing element 61 can be a simple plate, slider, or according to Figure 11 The example shown is implemented in the form of a flap 63, which is pivotally connected to the front wall 52 via a connector 62 or other means. Other devices that can close the opening may also be used.

[0099] For example, the flap 63 can close the opening 60 in a vertical position and open the opening in an upward pivoting position. The flap can pivot upward in the conveying direction F or in the opposite direction to the conveying direction F.

[0100] According to Figure 1 In an exemplary embodiment, a retaining weir 50 is provided such that its apex 53 extends in the lateral direction y, wherein, Figure 1 In this configuration, vertices 53 are parallel to each other. In other variations, vertices 53 may also be inclined relative to the lateral direction y. All weirs 50 may be inclined in the same direction. However, weirs 50 may also be configured such that their vertices 53 alternate with positive and negative setting angles β or extend relative to the lateral direction y in different patterns. This is merely an example. Figure 12 A top view showing alternating positive setting angle β and negative setting angle -β, i.e., a view in the vertical direction Z, is shown, but the invention is by no means limited to this variation.

[0101] The set angle β can have the same value. However, it is also possible to operate using set angles β with different values. It is preferable to use an angle between + / -5° and + / -25°.

[0102] The inclined installation of the retaining weir 50, especially the inclined installation of the retaining weir 50 with different inclined positions, can make the bulk material flow tortuous, thus affecting the residence time, thereby, for example, achieving a longer residence time.

[0103] In the vibrating conveyor 10 described above, the special geometry of the retaining weir 50 prevents or at least significantly reduces the compaction effect that could lead to agglomeration or blockage of the bulk material. The vibrating conveyor 10 of the present invention allows for a residence time of approximately 30 minutes for bulk material particles, with a very small range of residence times for all bulk material particles. This results in uniform mass of the bulk material particles.

[0104] The invention has been described in more detail above with reference to exemplary embodiments and other variations. The exemplary embodiments and variations are provided to demonstrate the feasibility of the invention. Where technically feasible, the individual technical features described above in the context of other individual features can also be implemented independently of these other individual features, and can be implemented in combination with other individual features even if not explicitly described. Therefore, it is explicitly stated that the invention is not limited to the specifically described exemplary embodiments and the variations shown in the drawings, but also includes all designs defined by the patent claims.

Claims

1. A vibrating conveyor (10) for handling bulk materials, comprising: A conveying trough (20) or conveying pipe for containing bulk materials, At least one vibration generator (30) is functionally connected to the conveying trough (20) or conveying pipe and is configured to generate directional vibration excitation (S) for conveying bulk material through the conveying trough (20) or conveying pipe in the longitudinal direction, wherein the directional vibration excitation (S) has directional components in the longitudinal direction of the conveying trough (20) or conveying pipe and in a directional component in a direction perpendicular to the direction of gravity, and Two or more weirs (50), which are disposed in the conveying trough (20) or conveying pipe, are configured to slow down the conveying movement of bulk materials in the longitudinal direction through the conveying trough (20) or conveying pipe. The retaining weir (50) has a rear wall (51) and a front wall (52), the rear wall (51) pointing in the conveying direction (F) of the bulk material, and the front wall (52) pointing in the opposite direction to the conveying direction (F). The rear wall (51) of the retaining weir (50) is at least partially inclined from the apex (53) of the retaining weir (50) toward the bottom (24) of the conveying trough (20) or conveying pipe in a downward inclined manner in the longitudinal direction of the conveying trough (20) or conveying pipe. The length (l) of the front wall (52) measured in the longitudinal direction of the conveying trough (20) or the conveying pipe from the bottom of the jumping part to the apex (53) of the retaining weir (50) is... V The length of the rear wall (51) is less than the length measured in the longitudinal direction of the conveying trough (20) or conveying pipe from the apex (53) of the weir (50) to the bottom of the jumping part. R ),and The rear wall (51) has at least one of a planar inclined portion (51a, 51b), a convex curved portion (51c), and a concave curved portion for contacting bulk materials.

2. The vibrating conveyor (10) for bulk materials according to claim 1, characterized in that, The rear wall (51) extends along the entire width of the conveying groove (20) or conveying pipe.

3. The vibrating conveyor (10) for bulk materials according to claim 1, characterized in that, The length (l) of the rear wall (51) R The height (h) of the rear wall (51) measured in the vertical direction of the conveying trough (20) or conveying pipe from the bottom (24) of the conveying trough (20) or conveying pipe to the apex (53) of the retaining weir (50) is the same as the height of the rear wall (51) measured in the vertical direction of the conveying trough (20) or conveying pipe from the bottom (24) of the conveying trough (20) or conveying pipe to the apex (53) of the retaining weir (50). R The proportion is in the range of 0.5-2.

0.

4. The vibrating conveyor (10) for bulk materials according to claim 1, characterized in that, The length (l) of the rear wall (51) R The height (h) of the rear wall (51) is less than the height measured in the vertical direction of the conveying trough (20) or conveying pipe from the bottom (24) of the conveying trough (20) or conveying pipe to the apex (53) of the retaining weir (50). R ).

5. The vibrating conveyor (10) for bulk materials according to any one of claims 1-4, characterized in that, The front wall (52) of the retaining weir (50) has at least one surface portion for contacting bulk material, the surface portion being inclined in the longitudinal direction of the conveying trough (20) or conveying pipe.

6. The vibrating conveyor (10) for bulk materials according to any one of claims 1-4, characterized in that, The front wall (52) of the weir has at least one surface portion for contacting the bulk material, and the front wall (52) is concavely curved and / or has one or more bends (52c, 52g) that traverse the longitudinal direction and the vertical direction.

7. The vibrating conveyor (10) for bulk materials according to any one of claims 1-4, characterized in that, The front wall (52) of the retaining weir (50) extends perpendicular to the bottom (24) of the conveying trough (20) or the conveying pipe, and / or extends in the direction of gravity.

8. The vibrating conveyor (10) for bulk materials according to any one of claims 1-4, characterized in that, The front wall (52) of the retaining weir (50) has a first surface portion (52a) for contacting bulk materials and a second surface portion (52b, 52d) for contacting bulk materials. The first surface portion (52a) is adjacent to the bottom (24) of the conveying trough (20) or the conveying pipe and extends perpendicular to the bottom (24) of the conveying trough (20) or the conveying pipe and / or extends in the direction of gravity. The second surface portion (52b, 52d) is adjacent to the first surface portion (52a) in the direction of the apex (53) of the retaining weir (50), and is concavely curved and / or has one or more bends (52g) that traverse the longitudinal and vertical directions.

9. The vibrating conveyor (10) for bulk materials according to claim 8, characterized in that, The height (h) of the first surface portion (52a) V1 The ratio of the total height of the retaining weir (50) from the bottom (24) to the top (53) is between 0.05 and 0.

25.

10. The vibrating conveyor (10) for bulk materials according to any one of claims 1-4, characterized in that, The retaining weir (50) can be detachably fixed in the conveying trough (20) or the conveying pipe.

11. The vibrating conveyor (10) for bulk materials according to claim 10, characterized in that, The retaining weir (50) has a sidewall (54) extending beyond its apex (53) and has means (55) for installing the retaining weir (50) in the conveying trough (20) or the conveying pipe.

12. The vibrating conveyor (10) for bulk materials according to any one of claims 1-4, characterized in that, The rear wall (51) and / or the front wall (52) are formed of metal plates.

13. The vibrating conveyor (10) for bulk materials according to any one of claims 1-4, characterized in that, The front wall (52) and rear wall (51) of the retaining weir (50) are connected to each other at the apex (53) of the retaining weir (50) by a substantially horizontal web (56).

14. The vibrating conveyor (10) for bulk materials according to any one of claims 1-4, characterized in that, It has one or more of the following restrictions, namely: - The retaining weir (50) is welded to the conveying trough (20) or the conveying pipe. - The throwing angle (α) of the bulk material between the direction (S) of the directional vibration excitation and the longitudinal direction is in the range of 15°-70°. - The conveying of bulk materials is achieved by a combination of vibration excitation and replenishment of bulk materials to the conveying trough (20) or conveying pipe. - The vibration generator (30) includes at least two vibration motors (31) fixed on the conveying trough (20) or the conveying pipe, or at least one electromagnetic vibration driver fixed on the conveying trough (20) or the conveying pipe. - A gap (59) is provided between the end edge (58) of the rear wall (51) located in the conveying direction (F) and the bottom (24) of the conveying groove (20) or conveying pipe. - The front wall (52) has an opening (60) near the bottom for emptying the conveying trough (20) or conveying pipe, and is provided with a closing element (61) for opening and closing the opening (60). - The apex (53) of the retaining weir has a different set angle (β) relative to the transverse direction of the conveying trough (20) or the conveying pipe.

15. The vibrating conveyor (10) for bulk materials according to claim 5, characterized in that, The surface portion rises and slopes upwards from the bottom (24) of the conveying trough (20) or conveying pipe toward the apex (53) of the retaining weir (50) in the longitudinal direction of the conveying trough (20) or conveying pipe.

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