DE3307180C1 - Silo containers for holding difficult-to-flow material, such as sourdough phases or yeast batches when making bread dough - Google Patents

Abstract

1. A silo tank for the reception, intermediate storage, possibly processing, and continuous batch delivery of difficultly flowing material, such as leaven phases or yeast mixtures in the manufacture of bread dough, comprising a number of substantially vertically superposed silo segments (38), pairs of which can be brought into flow communication with one another, the individual material batches travelling successively through said segments, and a delivery device (34) disposed after the bottom silo segment, characterised in that the individual silo segments (38) are formed by a plurality of horizontal pivoting bases (36) disposed with vertical spacing inside the substantially rectangular silo tank, the said pivoting bases each consisting of a plurality of flaps (40) simultaneously pivotable from a substantially horizontal closed position to a substantially vertical open position about parallel pivots (42), the width of said flaps as considered perpendicularly to the pivot axis being smaller than twice the height of each silo segment (38) and at least equal to the total width of each pivoting base divided by the number of pivots (42) of each pivoting base (36).

Description

The invention relates to a silo container for receiving, temporary storage, and possibly processing and batch-continuous delivery of poorly flowing material, such as sourdough phases or yeast deposits in the production of bread dough, according to the preamble of claim 1.

Liquid sourdough phases or yeast batches can be stored in silo containers with valve flaps that are placed one on top of the other or are kept in flow-through machines for the corresponding standing time. Silo this Art, however, are not suitable for pasty wholegrain sourdough, swelling pieces or broth pieces if the dough yield too small and the mass is therefore relatively firm. For this reason, silo containers can be as described above Do not use type with sourdough phases or yeast deposits in »meal-water« preparations.

From CH-PS 5 45 735 a silo container of the type mentioned is already known, which is used for collecting and dispensing of powder is used and in which the individual silo segments by relatively, compared with

ίο the volume of the individual silo segment, small Transition openings are connected to one another. The use of such a silo container for the reception, Intermediate storage and preparation of sourdough phases or the like can be those described above Difficulties do not avoid, in particular not a sufficiently exact separation of the individual batches is guaranteed.

The invention is therefore based on the object of improving a silo of the generic type in such a way that that it also provides temporary storage and reliable transfer from one silo segment to another difficult-flowing materials, such as those used in sourdough preparation, for example in the three-stage process, are to be processed, with exact separation of the individual batches.

According to the invention, this object is achieved by the features listed in the characterizing part of claim 1. Advantageous further refinements of the invention are characterized in the subclaims. The features and measures identified as known per se are known from DE-GM 70 03 934, which relates to a safety shut-off and metering device.
Instead of silos with rotary flap outlets or the like placed one above the other, a rectangular silo container is proposed according to the invention, which is divided into silo segments by means of flap bottoms. When a flap bottom is opened, the layer of material lying on top falls onto the floor below; when this floor is opened, the material falls onto the floor below, etc. «Is guaranteed. Of course, it is also easily possible to let a free zone wander through the silo container between individual batches, leaving one silo segment free. The characteristic dimensions of a silo container include, for example, a total height of approx. 7 mm, a width of the individual flap bottoms of 3 m and a length of the individual flap bottoms, viewed in the direction of the tilting axes, of 1 m, with each flap bottom or each Silo segment can then, for example, be loaded with 500 kg of material, resulting in a total load of 6 t for twelve silo segments.

An exemplary embodiment of the invention is explained in detail below with reference to the drawing. It shows
F i g. 1 is a flow diagram of the usual wholemeal sourdough preparation using a silo container according to the invention;

F i g. 2 shows a silo container according to the invention in a perspective side view, partially in section; and
3 in the operating states a) -b) the flap bottom of a silo container according to the invention in different positions.

Like F i g. 1 shows, is used in the conventional three-step process for wholegrain sourdough preparation

3 4

worked with three kneaders 10,12,14, each of which dosed the flaps by means of a shaking movement in the off with items to be set (= leftover sourdough), water Fig. 3b), for example the visible open position and shot are acted upon, the simple one ensuring that reliably the entire material from the Arrow in the overlying silo segment 38, which is readily apparent from the figure, into the respective Way, in each case the Anstellgut, the narrow double arrow 5 underlying silo segment arrives. Furthermore Water and the broad double arrow means shot. The silo container is easy to clean, the kneader 10, 12, 14 has one in the by all the flap bottoms are opened, namely respective rotary arrow indicated by a vertically by raising the individual flaps 40, like this Kale axis of rotation rotatable kneading tool 16, 18, 20 from Fig.3c) can be seen. A special advantage besides a bottom flap 22, 24, 26, which is at its 10 is that when transferring the batches of material Shift in the direction of each indicated from one valve base to the one below Arrow releases a discharge opening. No loss of gas in the second flap base with regard to the non-volatile kneader 12 is a silo container 28 with a discharge screw tiger organic acids (acetic acid!) Can arise, 30 downstream, while the kneader 14 a second as this otherwise disadvantageous in dough preparation Silo container 32 with discharge screw 34 is downstream because it is rated by the occupancy of the underneath and above is. lying flap bottom 36 each have a gas seal

The preparation of the wholemeal sourdough is guaranteed, and not just by Selbstdichnach the flow diagram described above for the treatment by means of the material lying on it, but rather The embodiment shown here in the after- also in that a new solution is approximately ascending as explained standing upright: 20 gases in the

First, in the kneader 10, a level I sourdough of the sensitive material is guaranteed. The low altitude Dough yield 180 produced, which, with cool guidance of the individual silo segments, enables a very low level of 6 - Can be left to stand for 20 hours. Share this overall height, an advantage that is particularly important for are successively in the kneader 12 to sourdough existing low manufacturing buildings to beech processed in stage II, which beats with a yield of 170 relative to 25. The fact that the individual flap bottoms is firmly guided. After four to five hours, volume dosing with defined batches of the Exact order (first in, first out), parts of the Sauer material to be stored is not required Stage II dough in the kneader to sourdough in stage III pre-weighing process. By means of fully electronic control processed, with a dough yield of 200 and is a batch-continuous work for the manufacturer higher temperature. These leavened doughs are made from naturally soured whole grain III, for example are possible in the exact order first in, first out in the sourdough, as well as the rest of the Vorrich-Silobehält32 stored its Structure can also be easily automated or automatically reproduced that of the silo 28 is controllable in detail below.

is described and the as an intermediate container

batch-continuous processing of the individual 35. 2 sheets of drawings Sourdough guaranteed.

As now F i g. 2 reveals is the one shown there
Silo container 28, which is in the horizontal essentially
has rectangular cross-section, through a variety of
Flap bottoms 36 into a number of horizontal silos 40
ments 38 divided, with the individual flap bottoms
36, as shown in FIG. 3 shows even better, respectively
consist of a number of flaps 40, the parallel horizontal tilt axes 42 from a
essentially horizontal position in which the 45th
respective flap bottom is closed and the continuous in F i g. 2 is shown, can be pivoted into a substantially vertical open position, such as
they in Fig. 3b) shows the third flap bottom from above.
The silo works in the following way: 50

First, the upper flap base 36, in
F i g. 2 delimiting the upper silo segment 38 below, the
corresponding batch of material applied in such a way that a transverse leveling in the direction of here like
also in FIG. 3a) shown cross arrow takes place. Where is 55
Volume dosing is easily possible without prior weighing. If the upper flap base 36 is now opened in their open position by pivoting all flaps 40 at the same time, the corresponding batch of material falls onto the next lower eo
Flap bottom 36, etc., so that by exact
Moving the flaps of the individual flap bases in
the specified sequence the flow chart »first in first
out «guarantee. Of course, the silo container can be equipped with a heating / cooling jacket, as in t> 5
Prior art known to be provided so that
the optimal operating conditions for dough preparation can be set. An impact

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Claims (7)

Patent claims: 1. Silo containers for receiving, temporary storage, if necessary processing and batch-continuous Dispensing of poorly flowing material, such as sourdough phases or yeast deposits in the Bread dough production, each with a number of essentially vertically arranged one above the other Silo segments that can be brought into flow connection with one another in pairs, which are successively separated from each other by the individual Batches of material are passed through, and one arranged in connection with the lowermost silo segment Discharge device, characterized in that the individual silo segments (38) by a large number of horizontal, vertically spaced within the silo container, per se known flap bottoms (36) each with a plurality of simultaneously and parallel to each other Tilting axes (42) from an essentially horizontal closed position to an essentially vertical one Open position of pivotable flaps (40), the width of which - viewed perpendicular to the tilt axis - at least as large as that divided by the number of tilt axes (42) of each flap base (36) Total width of each flap base is formed, the width of the flaps (40) being smaller than twice the half of each silo segment (38). 2. Silo container according to claim 1, characterized in that the height of the individual silo segments (38) is much smaller than the width and length of the flap bottoms (36). 3. Silo container according to claim 1 or 2, characterized in that the width of the individual flaps (40) is smaller than the height of each silo segment (38). 4. Silo container according to one of claims 1 to 3, characterized in that the flaps (40) each Flap base (36) overlap one another in their closed position in a manner known per se. 5. Silo container according to one of claims 1 to 4, characterized in that the flaps (40) of the individual flap bottoms (36) can be actuated one after the other in a controlled manner from top to bottom. 6. Silo container according to one of claims 1 to 5, characterized in that the flaps (40) in their open position can be acted upon by a shaking movement. 7. silo container according to one of claims 1 to 6, characterized in that the flaps (40) for Cleaning the silo container (28, 32) can be brought into their open position at the same time.