EP1995397B1 - Smooth wall silo - Google Patents

Abstract

The smooth wall silo has several cells (1) with wall elements (2), whereby a cell has several wall elements joined by corner joint plates (3, 4) in their corner regions to form a node column and each wall element has a vertical wall support (5) on one end in the installed position. Both wall supports of a pair of supports of a wall element are connected over their height by several cross-struts (6) arranged one above the other and at a distance apart. An independent claim is also included for a cell of a smooth wall silo.

Description

The present invention relates to a cell for a smooth-walled silo comprising a plurality of wall elements, which communicate in the region of their corners by corner connecting plates to form a node column with each other, wherein the corner connecting plate has a stanchion leg having at its one end an angled connecting leg for connection to a adjacent connecting leg and at its other end has a fold, wherein the wall element has at least one formwork element.

Silo container, and in particular also smooth wall silos of the type mentioned are sufficiently known from the prior art. Such silo containers serve to accommodate a variety of goods, such. As cereals or flour. In detail, smooth-walled silos are distinguished by the fact that they have substantially no horizontally extending projections on which food, for. As flour, deposit could. That is, if such a silo is empty, then it is actually empty. This is not the case with silo containers having trapezoidal wall panels, such as. B. silo container according to DE 30 02 782 A1 , This is because residues of the bulk material, for example of flour, will still be in the region of the horizontally extending trapezoidal plates.

In this respect, a smooth wall silo container is already known from DT 24 09 678, which is characterized in that the walls of a cell are no longer trapezoidal, but smooth. To connect the individual wall elements with each other 90 ° angle or head plates are provided, which are bolted to the wall elements. The screwing is done by so-called bolts, which means that such a silo container is not directly to be mounted on a building wall, as at least during assembly to tighten the screws, the assembly staff must be able to get behind the silo wall. Especially problematic, the matter is then, if for stability reasons, the individual wall elements are connected by rods. From this it is clear that the individual supports are connected by these rods with each other, the rods have a screw on the head side.

From the DE 30 07 201 A1 is a smooth wall silo of the type mentioned with prismatic corner columns known. The corner columns are formed from four trapezoidal column plates, wherein the cell walls run between the connecting flanges of two column plates. The connection between the individual column plates on the one hand and the cell walls on the other hand is done by tie bolts. Specifically, it is provided in this context that between two outer sheets to form the wall, a so-called square tube is provided, wherein the two outer plates and the square tube are connected by a tie bolt, wherein the formation of the corner pillars in cross-section trapezoidal shaped pillar plates are each also detected on both sides of the wall of this bolt. This construction has several disadvantages. Thus, such a silo container is not mounted directly in front of the wall. In addition, it is not clear how the stability of the wall elements should be achieved. It can only be seen that two outer plates are provided, which together with the column plates form the silo container or the cell of a silo container in the region of the corner column. In this respect, it can be assumed that a silo container produced in this way can not reach any desired height, at least not if at the same time the desired properties for a smooth-walled silo are to be retained. This also applies to the known silo connector systems such. B. according to or DE 30 02 782 A1 , Here, although precautions are taken in conjunction with a Betonverguss the supports to build high (see Fig. 6). However, a horizontal division of the wall into segments is still required because of the friction occurring between the components during installation, so that horizontal joints occur on the supports both joints as well as on the element upper and lower side. These are in the DE 30 02 782 A1 Although not described, but known from practice.

It has already been explained elsewhere that a smooth wall silo in the region of its interior, if possible, should be designed so that preferably no projections or joints arise on which are residues of the silo, so z. As flour, can deposit. Looking at the context in this context DE 30 07 201 A1 it can be seen that there are at least two screw heads are provided in a corner pillar with respect to each cell, on which still can deposit the silo.

From the BE 694 416 A is a support structure for a smooth wall silo of the type mentioned above, wherein the individual formwork elements abut the support structure.

The object underlying the invention is therefore to provide a smooth wall silo, in particular a smooth wall silo comprising a plurality of cells, which can be produced without limitation by the system or the design principle as such in any amount, which is constructed substantially directly on or in front of a wall which is hermetically sealed and stable and, moreover, requires only a few different components.

To achieve the object, the invention proposes that each wall element end has in each case a vertical wall support in the installed state, wherein the two wall supports of a pair of supports of a wall element are connected over their height by a plurality of superimposed and spaced apart transverse struts, wherein the fold at one end the stanchion leg is directed in the direction of the transverse strut, wherein the shell element also has a fold at each end, wherein the two folds are in engagement with the transverse struts.

Due to the arrangement of two in the installed state vertically extending columns in each wall element, the individual forming the cell or the silo walls are independent units in the sense that these wall elements take on an independent support function. This quite in contrast to the prior art according to the DE 30 07 201 A1 in which the individual wall elements receive the required stability only in connection with the column construction. This construction has the advantage that wall elements produced in this way can have almost any height, ie a height which is not limited by the system, wherein the Eckverbindungsbleche, which ultimately form the nodal columns, but have essentially no supporting function. Because the carry out supporting function - as already stated - in this construction, the wall elements. Furthermore, it follows that the individual wall elements are connected to each other by Eckverbindungsbleche. In this case, at least two Eckverbindungsbleche are provided in the region of a node column for connecting two wall elements. It becomes clear that the connection of two wall elements takes place through the two connecting plates in the region of the connecting legs, thus in the diagonal between two wall elements. In this respect, in contrast to the prior art here quite the possibility to mount such a silo directly in front of a wall, since the compound, for. B. by screws, in this diagonal between the two wall elements, and not in the area of the walls. However, the node column is then open on the back, which is secondary, since - as already stated - the wall elements as such wear. In this context, it should be noted that the nodal columns are no longer poured with concrete. The Eckverbindungsbleche themselves are stressed under load essentially only to train.

As already explained elsewhere, the wall elements in the installed state on two vertically extending wall supports. These wall supports are interconnected by transverse struts, wherein the inside of a wall element of a silo is covered by formwork elements. The formwork elements themselves are provided on both sides with folds, wherein the folds of the formwork elements are in engagement with the cross struts. Bent in the same way are the Eckverbindungsbleche so that in the region of the folds between the Eckverbindungsblechen on the one hand and the formwork elements on the other hand shocks arise, which are interconnected by perpendicular welds. The fact that the formwork elements and the Eckverbindungsbleche by the folds with The cross struts are engaged, it is now achieved that they have only a slight delay during welding. This is essential if it is assumed that a considerable heat input takes place through welds of several meters in length and thus the risk of distortion is great. In addition, the cross struts, which are connected to the vertical wall supports, and the scarfing elements arranged thereon, the stability of such a wall element serve.

In summary, it should be noted that the construction without horizontal connections can reach a substantially unlimited height. That is, the height is not limited by the system. In the area of impacts, long, straight weld seams are provided, which can be produced by means of a tractor welding device. Such a silo can be mounted substantially immediately in front of an existing wall, since the nodal columns can remain open at the rear.

Furthermore, by the teaching of the invention, a smooth wall silo can be produced with a plurality of cells, wherein there is not only a dense, but also a stable connection between the cross struts, formwork elements and corner elements.

Advantageous features of the invention will become apparent from the dependent claims.

Thus, it is provided in particular that the cross struts are designed to achieve a high stability in the manner of a U-profile.

As already explained elsewhere, both the Eckverbindungsbleche and the formwork elements are by bends in engagement with the cross struts. Specifically, it is provided in this context that the two folds with meandering Notches for detecting the transverse struts in the region of the legs of the cross struts are provided. In other words, the transverse struts, which point outwards with their closed legs, are thus open towards the bottom in the installed state, are respectively detected by the notch of the folds of the formwork elements or of the corner connecting plates.

As also explained elsewhere, a vertically extending weld is arranged in the region of a joint between the two formwork elements or between a formwork element and a Eckverbindungsblech, with the result that, since both the formwork elements and the Eckverbindungsbleche directly to the legs of the Abut transverse struts, during the welding process through the joint through a connection with the legs of the cross struts takes place.

Alternatively, it can also be provided that the cross strut in the region of the legs has slots for receiving the folds of both the Eckverbindungsbleche and the formwork elements. However, the connection between the formwork element and the Eckverbindungsblechen on the one hand and the crossbars on the other hand by a weld arranged in the region of the joints can then no longer be ensured. In this respect, it is provided that the formwork elements have openings in the region of the transverse struts. Through these openings, the shell elements can cohesively, z. B. by welding points, are connected to the cross braces. It should be expressly noted at this point that even in the variant in which the bends are provided with meandering notches to detect the cross braces, such openings may be provided on the formwork elements in the region of the transverse struts to an intimate connection of the components to produce each other. In general, with the help of such a construction, considerable shear forces in the longitudinal and transverse wall can be absorbed.

According to a further feature of the invention it is provided that the angled from the support leg connecting arm of the Eckverbindungsbleches an angle to the stanchion leg of Eckverbindungsbleches of about 45 °, wherein the two Connecting leg of the Eckverbindungsbleche advantageously overlap each other and in the overlapping area with each other z. B. are connected by screws.

As already explained elsewhere, the connection of two wall elements, which are at an angle of 90 ° to each other, takes place in the region of the diagonals of the Eckverbindungsbleche, since this opens up the possibility of mounting such a silo immediately in front of the wall, because the screw can from Cell interior are made. In addition, high tensile forces can be transmitted by such a diagonal connection of two wall elements.

According to a further feature of the invention, the support leg of the Eckverbindungsbleches forms a part of the jacket of the wall support. It is clear that a wall support can be formed as a whole square tube or even by two mutually parallel support legs of two Eckverbindungsbleche, in which case the two Eckverbindungsbleche be connected by two mutually parallel bars to a square to such a wall element stability lend, as it can be achieved, when used as wall supports directly square tubes are used.

In particular, the construction according to the invention also has the advantage that a cell can be subdivided at any point by further walls with the existing construction elements, that is to say in particular the corner connecting plates. Specifically, it is provided in this context that an intermediate wall element is provided for dividing a cell, wherein for connecting the intermediate wall element with the wall element of the cell, the Eckverbindungsbleche have at their fold in the support area meandering notches, which are in engagement with the transverse struts of the wall element. Only the completeness It should be noted at this point that, conversely, the transverse struts can show slots for receiving the folds of the corner connecting plates, as has already been described elsewhere. It is clear from this that the construction according to the invention is extremely variable despite the small number of different components.

According to a further feature of the invention, the wall element for arranging a funnel receptacle on the wall element of a cell on at least one transverse strut in the form of a square tube, wherein on the square tube, the funnel receptacle is arranged in the form of an angle to the wall element extending support plate. From this it is clear that the possibility is opened by replacing a cross member in the form of a U-profile by a cross strut in the form of a square tube, then attach the support plate of the funnel holder to this square tube. By replacing a U-shaped cross member with a square tube as a cross member is only necessary that the notches correspond to the dimensions of this square tube at the bends in the region of the horizontally extending square tube.

Figur 1

zeigt eine Zelle eines Glattwandsilos in perspektivischer Darstellung;

Figur 2

zeigt einen Schnitt durch die Zelle eines Silobehälters, wobei die Knotensäulen entsprechend der Anbindung der Wandelemente jeweils unterschiedlich ausgebildet sind;

Figur 3

zeigt eine Ausführungsform einer Zelle eines Silos mit einer Zwischenwand;

Figur 3a

zeigt die Einzelheit "X" mit einer Ausklinkung der Abkantung des Eckverbindungsbleches;

Figur 3b

zeigt eine Darstellung gemäß Figur 3a, wobei jedoch die Querstrebe zur Aufnahme der Abkantung des Eckverbindungsbleches einen Schlitz aufweist;

Figur 4

zeigt schematisch die Anordnung einer Trichteraufnahme an einem Wandelement.

With reference to the drawings, the invention will be explained in more detail below by way of example.

FIG. 1

shows a cell of a smooth wall silos in perspective view;

FIG. 2

shows a section through the cell of a silo container, wherein the node columns are each formed differently according to the connection of the wall elements;

FIG. 3

shows an embodiment of a cell of a silo with an intermediate wall;

FIG. 3a

shows the detail "X" with a notch of the fold of the Eckverbindungsbleches;

FIG. 3b

shows a representation according to FIG. 3a but wherein the cross member for receiving the fold of the Eckverbindungsbleches has a slot;

FIG. 4

shows schematically the arrangement of a funnel receptacle on a wall element.

FIG. 1 shows the cell 1 of a smooth wall silo, wherein at different points of the cell 1 of the smooth wall silo the formwork elements are omitted to illustrate the construction. The cell 1 has in detail four wall elements 2, which are connected in the corner region by connecting plates 3, 4. Each wall element 2 comprises two wall supports 5, which are connected by horizontally extending U-shaped transverse struts 6 ladder-shaped with each other. The arrangement of the U-shaped transverse struts is in this case such that the cross struts point with their open side in the installed state down. The ladder-shaped wall elements are clad by two mutually parallel shell elements 7 both on the inside and on the outside. Recognizable possess the shell elements each end a fold 7a, where - as in FIG. 1 recognizable, but especially in FIG. 3a shown - have the folds meandering notches 7b, so as to ensure that the formwork elements 7 can actually rest over the entire surface of the legs 6a of the cross braces 6.

As already stated, the shows FIG. 3a a notch 7b of the fold 7a of the shell element 7; The same applies to the folds of the Eckverbindungsbleche, as will be explained later, the also notches 3d, 4d ( Fig. 3 ) demonstrate. According to FIG. 3b may alternatively be provided that the transverse struts 6 for receiving the folds 7a of the formwork elements have a corresponding slot. Since also the connecting plates 3 and 4 in the region of the support leg 3a, 4a also a fold 3b, 4b ( Fig. 2 ), the above explanations apply mutatis mutandis to these folds. This means that the transverse strut is designed in the region of a joint between two wall elements in the same way as in the area of a joint between a wall element and a connecting plate 3 or 4.

To form a node column with a plurality of outgoing wall elements serve the previously mentioned connecting plates 3, 4. The connecting plates 3, 4 have the support legs 3a, 4a, wherein the support legs 3a, 4a rests against the wall support 5. The support leg 3a, 4a has the end of the fold 3b, 4b, which forms a joint 15 in conjunction with the respective fold 7a of the shell element 7, which receives a vertically extending weld in the assembled state of the silo.

It is essential that the Eckverbindungsbleche 3, 4 overlap each other in the region of the diagonal 21 with the respective connecting legs 3c, 4c. In the region of the overlap 21, the connection of the two Eckverbindungsbleche 3, 4 in the region of the connecting legs can be done by screws.

As already explained elsewhere, no matter how many wall elements depart from this node column, each node column can be manufactured with identical corner connection plates. The open legs of such a node column can be closed by appropriately trained end plates 30, 35. However, there is also the possibility to omit these end plates 30, 35, since the node columns need not be closed for reasons of stability, as has already been explained. It can also be the connecting leg 3c, 4c may be omitted or angled towards the interior of the node column.

According to FIG. 3 an intermediate wall element 40 is provided, wherein the intermediate wall element 40 is formed exactly the same as the wall element 2. The connection of this intermediate wall element 40 to the wall element 2 is made in the same way with the known Eckverbindungsblechen 3, 4, as well as the formation of a node column is known. Only the support leg of the connecting plate is no longer in a wall on a support, but only on the cross struts. This works because of the intermediate wall 40 due to the wall supports 5 no vertical loads, but only horizontal loads are delivered to the wall 2.

As in particular from FIG. 3 Recognizable, the formwork elements in the region of the transverse struts 6 are provided with openings 9 through which the formwork elements 7 are fixed to the transverse struts 6 by means of spot welds to form a shear bond. It has already been pointed out elsewhere that due to the notches 7b both the formwork elements 7 and the fold 3b, 4b of the connection plates, both the wall elements and the connection plates rest directly on the cross struts 6, so that when welding in the area the joint is directly connected to the underlying transverse strut 6.

In the embodiment according to FIG. 3b in which the transverse strut 6 has a slot 6c for receiving the respective folds of the corner connecting plates and the formwork elements, however, a connection of the formwork elements with the cross strut by welding points through the openings 9 of the formwork elements is required to ensure the required stability.

According to FIG. 4 schematically, the arrangement of a horizontally extending square tube 45 is provided in the wall element 2, wherein on the square tube 45 as a funnel receptacle 46, a support plate is arranged. This support plate is connected for example by a weld with the horizontally extending square tube 45. In this area of the support plate 46, the formwork elements 7 no longer run through, but continue upwards and downwards as independent wall elements.

Claims (12)

1. A cell (1) for a smooth wall silo, which comprises several wall elements (2) that are joined together by corner connecting sheets (3, 4) in the region of their corners in order to form a node pillar, said corner connecting sheet (3, 4) comprising a pillar leg (3a, 4a) that comprises at its one end an angled connecting leg (3c, 4c) for connection to a neighboring connecting leg (3c, 4c) and that comprises at its other end a chamfer (3b, 4b), said wall element (2) comprising at least one casing element (7),
   characterized in
   that each wall element (2) comprises on either end side a wall pillar (5) extending vertically when mounted, said two wall pillars (5) of a pair of pillars of a wall element (2) being connected over their height through several cross beams (6) disposed one above the other in a spaced-apart relationship, the chamfers (3b, 4b) at one end of the pillar leg (3a, 4a) being oriented toward said cross beam (6), the casing element also comprising respectively a chamfer (7a) at the end side, the two chamfers (7; 3b, 4b) being engaged with said cross beams (6).
2. The cell for a smooth wall silo as set forth in claim 1,
   characterized in
   that the cross beams (6) are configured in the fashion of a U profile.
3. The cell for a smooth wall silo as set forth in claim 1,
   characterized in
   that the two chamfers (7; 3b, 4b) are provided with meander-shaped notches (7b, 3d, 4d) for taking hold of the cross beams (6) in the region of the legs of the cross beams (6).
4. The cell for a smooth wall silo as set forth in claim 1,
   characterized in
   that the cross beam (6) comprises, in the region of the leg, slots (6c) for receiving the chamfers (7; 3b, 4b).
5. The cell for a smooth wall silo as set forth in claim 1,
   characterized in
   that, in case of a wall element (2) having several, in particular two, parallel casing elements (7), the casing elements (7) comprise chamfers (7a) for taking hold of the cross beams in the region of their butt joint (15).
6. The cell for a smooth wall silo as set forth in any one of the afore mentioned claims,
   characterized in
   that the connecting leg (3c, 4c) of the corner connecting sheet (3, 4), which is angled from the pillar leg (3a, 4a), is inclined at an angle of about 45° with respect to the pillar leg of the corner connecting sheet.
7. The cell for a smooth wall silo as set forth in any one of the afore mentioned claims,
   characterized in
   that, to build a cell (1), two corner connecting sheets (3, 4), which are connected together, comprise one connecting leg (3c, 4c) each, said connecting legs (3c, 4c) overlapping each other and being connected together in the region of the overlap (at 21) such as by screws.
8. The cell for a smooth wall silo as set forth in any one of the afore mentioned claims,
   characterized in
   that the pillar leg (3a, 4a) of the corner connecting sheet (3, 4) forms a part of the surface area of the wall pillar (5).
9. The cell for a smooth wall silo as set forth in any one of the afore mentioned claims,
   characterized in
   that there is provided a partitioning wall element (40) for partitioning a cell (1), the corner connecting sheets (3, 4) comprising at their chamfer (3b, 4b) meander-shaped notches (3d, 4d) in the region of the pillar, said notches engaging the cross beams (6) of the wall element (2) for connecting the partitioning wall element (40) to the wall element (2) of the cell (1).
10. The cell for a smooth wall silo as set forth in any one of the afore mentioned claims,
    characterized in
    that, in order to arrange a funnel feeder on the wall element (2) of a cell (1), the wall element (2) comprises at least one cross beam in the shape of a square tube (45), the funnel feeder (46) in the shape of a carrying sheet extending at an angle with respect to the wall element being disposed on said square tube (45).
11. The cell for a smooth wall silo as set forth in any one of the afore mentioned claims,
    characterized in
    that the casing elements (7) comprise openings (9) in the region of the cross beams (6).
12. A smooth wall silo with several cells as set forth in one or several of the afore mentioned claims.

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