WO2016062644A1

WO2016062644A1 - Rotatable silo system for bulk material

Info

Publication number: WO2016062644A1
Application number: PCT/EP2015/074080
Authority: WO
Inventors: Karsten Fischer
Original assignee: Federal-Mogul Bremsbelag Gmbh
Priority date: 2014-10-22
Filing date: 2015-10-19
Publication date: 2016-04-28
Also published as: DE102014115378B4; DE102014115378A1

Abstract

In order to further improve a silo system (100) for storing, transporting, conveying and emptying bulk material (10) in such a way that the bulk material (10) can be prevented from bridging, agglomerating and getting caught even without providing additional knocking mechanisms or vibrators and in order to be able to simultaneously use the silo system (100) also for dosing bulk material (10), an emptying means (17) that is designed to direct the bulk material (10) to a discharge opening (15) in the side wall (14) is arranged in the area of said discharge opening (15) and protrudes into an interior (18) of the silo system (100).

Description

Rotatable silo system for bulk material

description

The invention relates to a silo system for storage, transport, conveying, emptying and / or metering of bulk material. The silo system is rotatable about its longitudinal axis in two directions and has two frontally arranged and mutually opposite walls, which are interconnected by a lateral surface forming side wall of the silo system. An outlet opening is arranged in this side wall.

State of the art

Silo containers or silo systems with a conical outlet are known. The problem is that in the exit area depending on the nature of the bulk material bridging, bonding and Verhakelung of the bulk material can occur. Usually this problem is solved by knockers or vibrators.

EP 0288799 A2 describes a container mounted on rollers and rotatable by a rotary drive or by a hand about its longitudinal axis. Inside, the container is equipped with a mechanical conveying and fluidizing device. One of the container floors serves as an emptying floor and is combined with an emptying device, which encloses a passage for the bulk material guided through a central opening of the emptying floor. The opposite container floor serves as a pressure equalization bottom and is combined with a pressure compensation device.

EP 1847482 AI describes a drum silo for storage and promotion of bulk materials, consisting of a hollow body whose end faces are interconnected by the inner wall and the center axis is aligned horizontally or inclined with respect to the earth's surface. A closable filling opening is arranged in the inner wall between the two end faces. The outlet opening is arranged in one of the two end faces or in the inner wall directly adjacent to the end face.

DESCRIPTION OF THE INVENTION: Problem, Solution, Advantages

The object of the present invention is to further improve a silo system for bulk material in such a way that bridging, bonding and behavior are achieved. bulk material can be avoided without the provision of additional knockers or vibrators and the silo system is also suitable for metering bulk goods in addition to the storage, transport, conveying and emptying of bulk material.

For this purpose, a silo system according to the invention is proposed, which is rotatable about its longitudinal axis in two directions and wherein the silo system has two frontally arranged and opposing walls, which are interconnected by a lateral surface forming side wall of the silo system. An outlet opening is provided in this side wall between the two frontally arranged walls. According to the invention, an emptying means projecting into an interior of the silo system is arranged in the region of the outlet opening, which is designed to direct the bulk material toward the outlet opening.

Preferably, the silo system is substantially drum-shaped, in particular cylindrically shaped. For example, the silo system could have a length between 500 millimeters and 5,000 millimeters, more preferably between 600 millimeters and 2,500 millimeters, and most preferably between 600 millimeters and 1,500 millimeters. For example, the silo system could be 1,000 millimeters long. The diameter or maximum width of the silo system is preferably between 250 millimeters and 1000 millimeters, and more preferably between 300 millimeters and 750 millimeters, and most preferably between 400 millimeters and 600 millimeters. For example, the silo system could have a diameter or a maximum width of 500 millimeters. As far as the cylindrical body no static limits are set, the dimensions of the task position can be adjusted accordingly.

Furthermore, it is preferably provided that the silo system is oriented horizontally and is provided with a frictional and / or positive drive for rotating or rotating the silo system. For example, the silo system could be mounted on rollers or have a shaft drive. The emptying means is arranged at a first end spaced from the inner surface of the side wall and thus spaced from the inner surface of the silo system. With the second end, the emptying agent is arranged on the inner surface of the side wall or connected thereto. Thus, the emptying means is from the inner surface of the side wall or from the inner circumferential surface of the silo system and protrudes into the interior of the silo system. The distance between the first end of the draining means and the inner surface of the side wall of the silo system is at least 5 millimeters and at most 50 millimeters. Particularly preferably, the distance between the first end of the emptying means and the inner surface of the side wall is between 10 millimeters and 20 millimeters.

The outlet opening preferably has a maximum width between 10 millimeters and 50 millimeters and more preferably between 10 millimeters and 25 millimeters. The structural design of the emptying means in combination with the geometry of the outlet opening can, according to the particle size distribution of the bulk material and their having flow properties, are made accordingly.

The emptying agent diverts part of the bulk material to the outlet opening. Thus, depending on the dimensions and the shape of the emptying agent, the silo system according to the invention serves not only for storage, transport, conveying and emptying, but also for accurate metering of bulk material.

The outlet region or the region in which the outlet opening is arranged does not have a cross-sectional narrowing shape. In particular, no cone-shaped outlet is provided.

Furthermore, it is preferably provided that the silo system has no circular components in the interior, in particular no components running around the circumference along the inner surface of the side wall. Any flanges or belts which serve the statics of the silo system are preferably arranged exclusively on the outside of the container or of the silo system.

Preferably, the outlet opening is arranged centrally with respect to the longitudinal axis of the silo system. Thus, the distance between the outlet Opening and a first end wall arranged substantially equal to the distance between the outlet opening and the second end wall arranged wall. The outlet opening is thus preferably arranged centrally and centrally on the silo system. For this purpose, the outlet opening may be round, oval or angular.

Furthermore, it is preferably provided that the outlet opening is elongate, for example slot-shaped or slit-shaped. The outlet opening is preferably arranged over more than 50% of the length of the silo system. Particularly preferably, the outlet opening is arranged over more than 75%, and most preferably over more than 90%, of the length of the silo system. The outlet opening may also be provided over the entire length of the silo system. In this case, the width of the outlet opening in each area may be constant or be made larger toward the middle of the silo system.

Furthermore, the emptying means 17 is arranged in regions and particularly preferably in each area parallel to the outlet opening 15.

It is also preferably provided that the emptying means is designed such that the bulk material is passed to the outlet opening only in a single direction of rotation of the silo system. Thus, a first direction of rotation preferably serves to loosen the bulk material or to prevent lump formation in the silo system, in particular during storage or transport of the bulk material or between individual emptying operations. For this purpose, the emptying means is further preferably designed or shaped such that the bulk material is passed over the outlet opening in a first direction of rotation of the silo system. Thus, not necessarily closing the outlet opening is necessary, which greatly simplifies handling. When changing the direction of rotation or an activation of the second direction of rotation of the bulk material is passed through the emptying agent to the outlet port.

The emptying agent preferably projects in regions over the

Outlet opening in the interior of the silo system. In this case, the outlet opening is not or not completely covered by the emptying agent. The emptying means is preferably further spaced apart with a first end arranged to the inner surface of the side wall. For this purpose, the emptying can be bent, for example, have a C-shaped cross-section. Alternatively, the emptying agent could have two or more cross-sectional sections or sections that are at an angle to each other when viewed in cross-section. Particularly preferably, two cross-sectional portions of the evacuation means are at an angle between 45 and 135 degrees, and more preferably between 60 and 110 degrees to each other. Particularly preferably, it is further provided that the emptying means in the interior of the silo system completely surmounted the outlet opening.

Furthermore, the emptying agent can be arranged along the entire region of the outlet opening, in particular along the entire length of the outlet opening in the silo system. In this case, the emptying means and / or the outlet opening can extend horizontally.

Preferably, the emptying means in the longitudinal direction of the silo system at least two adjoining sections, which are at an angle to each other, wherein the angle is greater than 0 degrees and less than 90 degrees. The outlet opening may likewise have at least two sections which adjoin one another in the longitudinal direction of the silo system and which are at an angle to one another and wherein the angle is greater than 0 degrees and less than 90 degrees. For this purpose, the emptying means and / or the outlet opening is preferably elongate, for example arranged along a substantial part of the length of the silo system. The angle between the two sections of the emptying means and / or the outlet opening is particularly preferably greater than 5 degrees, and most preferably more than 10 degrees. Furthermore, the angle is more preferably less than 50 degrees, and most preferably less than 40 degrees.

The two sections of the emptying means and / or the outlet opening preferably converge centrally with respect to the longitudinal axis of the silo system. Thus, the two sections have a common starting point in the central region of the silo system. The vertex of the angle between the two sections is thus particularly preferably arranged centrally. Preferably, at least one means for mixing the bulk material is arranged on the inner surface of the side wall. Since the emptying agent is partly also intended for mixing the bulk material, in particular during rotary movement in a direction in which it is not emptied, a further means for mixing the bulk material is thus provided in addition to the emptying means. The at least one further means for mixing the bulk material protrudes, as does the emptying agent, from the inner surface of the side wall into the interior of the silo system. Thus, a first end of the at least one means for mixing is spaced from the inner surface of the sidewall, and a second end is disposed on and connected to the inner surface of the sidewall. The at least one means for mixing the bulk material is designed such that a mixing in both directions of rotation is carried out in a suitable manner. The at least one means for mixing the bulk material may be formed, for example cuboid. Particularly preferably, a plurality of additional means for mixing the bulk material are provided and very particularly preferably arranged distributed in the circumferential direction. For example, a plurality of means for mixing the bulk material can be distributed in the circumferential direction and arranged uniformly spaced from each other.

It is also preferably provided that at least one means for mixing the bulk material is arranged horizontally along the longitudinal axis of the silo system, as well as over more than 50% of the length of the silo system without interruption. Particularly preferably, the at least one means for mixing the bulk material is arranged over more than 75%, very particularly preferably over more than 90% of the length of the silo system. By horizontal alignment of the at least one means for mixing the bulk material, a horizontal alignment of the bulk material surface can be achieved during mixing. For example, the at least one means for mixing the bulk material may be web-shaped and arranged to extend straight along a horizontal line. Thus, the at least one means for mixing the bulk material is particularly preferably not curved, curved or spiral-shaped and does not run obliquely along the inner surface of the side wall of the silo system, but in the horizontal direction. The at least one means for mixing the bulk material is thus particularly preferably aligned in each area perpendicular to both end walls of the silo system.

Furthermore, it is preferably provided that a plurality of means for mixing the bulk material are arranged horizontally on a line over more than 50% of the length of the silo system at a distance from each other. Particularly preferably, the plurality of means for mixing the bulk material over more than 75%, more preferably more than 90%, the length of the silo system spaced from each other. Thus, in the longitudinal direction, that is, along the longitudinal axis, of the silo system, a plurality of means disposed one behind the other for mixing the bulk material can be provided.

It is also preferably provided that an inlet opening is arranged in the side wall. The inlet opening may be closable, for example as a flap, lid, or hatch, be formed. Thus, it is preferably provided that both the inlet opening and the outlet opening are arranged in the side wall. Particularly preferably, the inlet opening and the outlet opening of the side wall are arranged opposite one another. The frontally arranged walls of the silo system thus preferably have no opening.

Brief description of the drawings

The invention is explained below by way of example with reference to preferred embodiments.

They show schematically:

1 shows a perspective view of a silo system, FIG. 2 shows a longitudinal section through the silo system,

3 shows a cross section through the silo system,

3a and 3b: two different directions of rotation in cross-sectional view,

4a and 4b: a section of a cross-sectional area of the silo

Systems,

5 shows a further section of a cross-sectional area of the silo system, and FIG

6a and 6b: a longitudinal section through the silo system. Preferred embodiments of the invention

1 shows a perspective view of a silo system 100. The silo system 100 is cylindrical and arranged horizontally. The storage, such as rollers 28, are not shown in Fig. 1. The two frontally arranged walls 11, 12 of the silo system 100 are connected to one another via a side wall 14. By the side wall 14, the lateral surface 13 of the cylindrical silo system 100 is formed. An inlet opening 24 to the inlet of the bulk material 10 is arranged in the form of a flap in the side wall 14 of the silo system. Opposite the inlet opening 24, an outlet opening 15 is provided in the side wall 14 of the silo system 100.

FIG. 2 shows a longitudinal section through the silo system 100. The silo system 100 has a length 19. The outlet opening 15 is arranged centrally in the side wall 14 of the silo system 100. The emptying means 17 is provided along the entire length 19 of the silo system 100. The silo system 100 is mounted on rollers 28 and can be rotated or rotated in two directions of rotation 29.

3 shows a cross-sectional view through the silo system 100. In the region of the outlet opening 15, a discharge means 17 of curved design is arranged. The emptying means 17 projects beyond the outlet opening 15. The emptying means 17 is arranged at a first end 25 spaced from the inner surface 22 of the side wall 14. With a second end 26, the emptying means 17 is connected to the inner surface 22 of the side wall 14. Distributed circumferentially means 23 are further provided for mixing the bulk material 10. The means 23 for mixing the bulk material 10 have a cuboidal or web-shaped or semicircular ridge-shaped design and are arranged horizontally along the longitudinal axis 16 of the silo system 100.

In Fig. 3a and 3b, the two different directions of rotation 29 are shown. The emptying means 17 is designed such that the bulk material 10 is directed to the outlet opening 15 only in one direction of rotation 29. 3a shows a first direction of rotation, wherein the bulk material 10 is passed through the emptying means 17 via the outlet opening 15 away. The bulk material 10 does not escape from the outlet opening 15 in this first direction of rotation. In Fig. 3b the second direction of rotation is shown. The bulk material 10 is removed by the emptying directed means 17 to the outlet opening 15 and exits from the outlet opening 15.

4a and 4b show sections of the cross section of the silo system 100 from FIG. 3. In this case, the region of the outlet opening 15 with the inwardly projecting emptying means 17 is shown enlarged. The emptying means 17 has a curved, in particular C-shaped, cross section and protrudes completely over the outlet opening 15. The emptying means 17 is spaced at its first end 25 over a distance 27 from the inner surface 22 of the side wall 14. With its second end 26, the emptying means 17 is connected to the inner surface 22 of the side wall 14.

FIG. 4 a shows a direction of rotation 29, wherein the bulk material 10 is not guided by the emptying means 17 to the outlet opening 15. With reference numeral 30, the material flow direction is shown. In the direction of rotation 29 shown in FIG. 4 a, the bulk material 10 is led away via the emptying means 17 and thus via the outlet opening 15 without bulk material 10 emerging from the outlet opening 15. This direction of rotation 29 thus serves for mixing, or storage or transport of the bulk material 10.

4b shows the same section of the silo system 100 as FIG. 4a. In Fig. 4b, the direction of rotation 29 has been changed. The bulk material 10 is partially guided by the emptying agent 10 to the outlet opening 15. Depending on the shape and the dimensions of the emptying means 17, the bulk material 10 can thus also be portioned. Bulk material 10 not detected by the emptying means 17 is conducted away via the emptying means 17.

FIG. 5 likewise shows a section of the cross-sectional representation of the silo system 100. An alternative form for the emptying means 17 is shown in FIG. In contrast to the emptying means shown in FIGS. 4a and 4b, the emptying means shown in FIG. 5 has two legs or cross-sectional portions which are at right angles to one another.

FIGS. 6a and 6b each show a longitudinal section through the silo system 100. In FIG. 6a, both the outlet opening 15 and also the emptying means 17 are arranged along the entire length 19 of the silo system 100. The outlet opening 15 is formed in a slot shape and has a first Ab- cut 20a and a second portion 20b. The emptying agent 17 also has a first portion 20a and a second portion 20b. The emptying means 17 and the outlet opening 15 are arranged parallel to one another. The two sections 20a and 20b of the outlet opening 15 and the emptying means 17 converge at an angle 21 in the middle of the silo system 100. Thus, a common starting point of the two sections 20a, 20b of the outlet opening 15 and the emptying means 17 is formed centrally in the side wall 14 of the silo system 100. This starting point forms the vertex 21a of the angle 21 between the first portion 20a and the second portion 20b.

FIG. 6b shows an alternative embodiment of the outlet opening 15 in comparison to FIG. 6a. As in FIG. 6a, the emptying means 17 is arranged over the entire length 19 of the silo system 100 and has two sections 20a, 20b arranged at an angle 21 to one another on. In contrast to the gap-shaped outlet opening 15 from FIG. 6 a, the outlet opening 15 is round or oval and is arranged only in regions, specifically in the middle in the side wall 14 of the silo system 100. The outlet opening 15 thus does not extend over the entire length 19 of the silo system 100 in FIG. 6b.

LIST OF REFERENCE NUMBERS

100 silosystem 10 bulk goods

11 first end wall of the silo system

12 second end wall of the silo system

13 lateral surface

14 sidewall

15 outlet opening

16 longitudinal axis

17 emptying agent

18 interior

19 Length of the silo system

20a first section

20b second section

21 angles between the first and second sections

21a vertex of the angle

22 Inner surface of the side wall

23 Means for mixing the bulk material

24 inlet opening

25 first end of the emptying agent

26 second end of the emptying agent

27 Distance between the first end of the draining means and the inner surface of the side wall

28 rolls

29 direction of rotation

30 material flow direction

Claims

claims

A silo system (100) for storing, transporting, conveying, emptying and / or metering bulk material (10), wherein the silo system (100) is rotatable about its longitudinal axis (16) in two directions, the silo system (100) being two end faces arranged and opposing walls (11, 12) which are connected by a lateral surface (13) forming a side wall (14) of the silo system (100), wherein an outlet opening (15) in the side wall (14) is arranged, characterized in that in the area of the outlet opening (15) an emptying means (17) projecting into an interior space (18) of the silo system (100) is arranged, which is designed to direct the bulk material (10) towards the outlet opening (15) ,

2. silo system (100) according to claim 1, characterized in that the outlet opening (15) with respect to the longitudinal axis (16) of the silo system (100) is arranged centrally.

3. silo system (100) according to claim 1, characterized in that the outlet opening (15) over more than 50%, preferably more than 75%, more preferably more than 90%, the length (19) of the silo system (100) is arranged ,

4. silo system (100) according to one of the preceding claims, characterized in that the emptying means (17) is designed such that the bulk material (10) is directed in only a single direction of rotation of the silo system (100) to the outlet opening (15).

5. silo system (100) according to one of the preceding claims, characterized in that the emptying means (17) in the interior (18) of the silo system (100) partially over the outlet opening (15) protrudes.

6. silo system (100) according to one of the preceding claims, characterized in that the emptying means (17) over the entire Area of the outlet opening (15), in particular over the entire length of the outlet opening (15) is arranged.

Silosystem (100) according to one of the preceding claims, characterized in that the emptying means (17) and / or the outlet opening (15) has at least two sections (20a, 20b) which are at an angle (21) to each other, wherein the angle (21) is greater than 0 ° and less than 90 °.

8. silo system (100) according to claim 7, characterized in that the two sections (20a, 20b) of the emptying means (17) and / or the outlet opening (15) with respect to the longitudinal axis (16) of the silo system (100) converge centrally ,

9. silo system (100) according to any one of the preceding claims, characterized in that on one inner surface (22) of the side wall (14) one or more means (23) for mixing the bulk material (10) are arranged.

10. silo system (100) according to claim 9, characterized in that at least one means (23) for mixing the bulk material (10) horizontally along the longitudinal axis (16) of the silo system (100), as well as over more than 50%, preferably more than 75%, more preferably more than 90%, of the length (19) of the silo system (100) is arranged uninterrupted.

11. silo system (100) according to claim 9, characterized in that a plurality of means (23) for mixing the bulk material (10) horizontally along the longitudinal axis (16) of the silo system (100) over more than 50%, preferably more than 75%, more preferably more than 90%, the length (19) of the silo system (100) are arranged spaced from each other.

12. silo system (100) according to one of the preceding claims, characterized in that an inlet opening (24) for the bulk material (10) in the side wall (14) is arranged.