DE3436388A1 - Continuous wine and fruit press - Google Patents

Abstract

A continuously operating wine and fruit press is described, which preferably consists of a closed round or polygonal cylindrical container. The pressing device shown in cross-section extends in an axial direction inside the said container. The inside wall of the container has a plurality of juice chamber segments arranged in an annular fashion, elastic pressing diaphragms being arranged between the said juice chamber segments. A screenlike/perforated drum which is mounted in a centred fashion on a hollow shaft rotates directly beneath these partially perforated juice chamber segments, which drum is divided up into an internal juice chamber, a must inlet chamber and a husk outlet chamber. Must to be pressed out is introduced into the must inlet chamber via the hollow shaft and conveyed from the must inlet chamber into the individual pressing chambers proper by rotation of the drum. A pressing means exerts different degrees of pressure on the elastic diaphragms in the individual pressing chambers, juice being extracted via the drum and in addition via the juice chamber segments and connected external juice outlets which are situated in the double casing and can be heated.

Description

Continuous wine and fruit press The invention relates to a wine and fruit press for pressing grapes, fruit mash and other fabrics interspersed with fluid.

There are various presses for juicing grapes or fruit mash known. For example, mechanical presses are known in which the pressing takes place by means of a movable pressure plate in a rotating screen cylinder. The straight CTef: its pressure plate is moved over a rotating spindle.

But there are also known presses in which the pressure plate is over a hydraulic system is moved. Both mechanically and hydraulically working But presses have the disadvantage that the mechanical acting on the material to be pressed Load is very large, so that cloudy juices are generated.

In addition, the actual pressing process is relatively long.

Furthermore, pneumatically operating presses are known in which in one Container in the shape of a cylinder a rubber hose is arranged, which is inflated, and the mash to be pressed against the perforated or slotted container wall presses. However, these presses have the disadvantage that they are unsatisfactory to automate. Another disadvantage is that the rubber hose after strong expansion with each pressing process go back to its original shape got to. As a result, the material suffers in its mechanical strength, so that it after is destroyed some time. Before that, however, it becomes porous, and already in this state bacteria can settle in the structure.

Such presses also have a poor crumbling effect. Therefore the crumbling must be done by hand and mainly through the open lid. This is very time consuming and also represents a source of danger.

So-called tank presses are also known, which are also pneumatic work, and in which a movable press cloth runs axially in the container half. These presses have the disadvantage that the pressing times are very long. The latter is due to the fact that the mash cake to be squeezed has a great strength, i.e. Thickness has. The thick cake prevents the juice from being released quickly. The performance of the The press is therefore generally unsatisfactory according to the current state of the art. Furthermore, tank presses are known, from the center out Pneumatically inflate the cloth. Although these presses have relatively fast pressing times but it is not possible to work continuously.

Continuously operating screw presses are also known. These presses bring high performance, but have the major disadvantage that the must is very contains a lot of lees and tannins. For this reason, quality viticulture rejects the State-of-the-art screw press.

The invention is therefore based on the object of continuously to indicate working wine and fruit press, which the above described Avoids disadvantages and especially with fully automatic continuous operation high press performance in the quality range allowed.

This problem is solved by a press which is described in the claims has specified features.

The essential feature of the invented press is that it is im Inside the closed container over several juice chamber segments (cross section), which divide the container into many pressing rooms.

There are elastic press membranes between the individual juice chamber segments arranged. The container is rotatable, supported by a hollow shaft and a perforated / screened drum is equally rotatably mounted in the container. This inner drum has one or more doors. The perforated / sieved The drum is divided into a central inner juice chamber, a mash inlet chamber and pomace outlet chamber with conveyor device.

In the embodiment of the invented press, it has the advantage that the juicing process takes place in many small chambers that are automatically continuous be charged, with each of the individual chambers working with different pressures. With the slow rotation of the outer container and inner drum, over Scraper good crumbs or

Loosening processes achieved. The invented press is simple with To equip resources for fully automatic and continuous operation.

In the drawing, the invention is shown in one embodiment.

The figure shows the cross section of the container with the pressing device. The container is as a cylindrical jacket 21 on an axis, which is a hollow shaft 19 is formed on an aluminum machine frame, stored.

The inner perforated drum 14 is also mounted on this axis. The storage takes place in such a way that a rotation of the cylindrical jacket and the perforated drum is possible independently of one another. Here the rotation the jacket and the drum take place both synchronously and asynchronously; also is Opposite rotation possible.

The juice chamber segments 11 are in any number on the container 21 mounted. Pointing to the center of the drum, these juice chamber segments are at the bottom End perforated for juice passage. In the case of the pressing sequences, the enforcing one penetrates Liquid enters these juice chamber segments and goes through them to the outer juice drains 13. In the embodiment according to the invention, the juice drains are in a double container wall 12, which can be heated, embedded. This is an advantage when producing red wine.

The filling of the individual chambers 1 - 8 is expedient via the hollow shaft 19 and, as shown in the drawing, the mash inlet chamber 16 Door 15 to Chamber 1. By rotating the inner drum 14 to Chamber 2 and all other chambers are also filled. When filling the relevant chambers 1 - 8 are the elastic press membranes 9 on the inner wall of the container drawn. This process is expediently achieved using vacuum devices.

After filling the individual chambers, compressed air 10 in different thicknesses between the inner container wall and elastic press membranes 1 - 8 given. Here, the dashed line shows the more or less inflated elastic press membrane 9 a in the individual chambers. This press membrane 9 a press the mash or another substance permeated with liquid against the permeable walls of the juice chamber segments 11 and of the drum 14.

By continuously or intermittently / step-by-step turning of the container and drum, the scraper 18 prevents the formation of pomace bridges and loosened again and again. Due to the many chambers 1 - 8 or more, there is a smaller one and a thin press cake, which contributes particularly to the rapid release of juice. The individual pressure values to the chambers are expediently 0.2 - 6 bar. But it is also conceivable that higher pressure values are used.

The machine or the individual chambers 1 - 8 are emptied via the discharge door 20, the pomace being supported by these chambers to the Pomace discharge chamber and the conveying device 17 are supplied will. Doors 15 and 20 open and close automatically.

In another embodiment, several doors could be between all juice chamber segments, i.e. below chambers 1 - 8. The control and actuation of these doors is programmed according to the workload and is related to container and drum rotation. The vintage and the different Grape varieties require a different setting of the residence time and Mash cycle time in chambers 1 - 8.

Claims (5)

Claims 1.) Wine and fruit press with a cylinder-shaped container, Hexagonal shape or a similar shape for pressing grapes, fruit mash or other wetted materials, with one inside the container attached press inricsltung, characterized in that one or more Snftkammersegmente (11) are mounted in a ring on the inner wall of the container and a section in the Containers protrude, with an elastic press membrane between the juice chamber segments (9) is attached, which is in the case of the container shown in cross section in axial Direction extends. 9.) Wine and fruit press according to claim (1), characterized in that that. inside the container (21) a perforated / sieved drum (14) on a Hollow shaft (19) is rotatably mounted and this drum is directly connected to the in the juice chamber segments (11) protruding past the container interior. 3.) Wine and fruit press according to claim (i) and (2), characterized in that that the perforated / sieved drum (14) rotating axially in the holder (21) in the Inside is divided into two or more chambers, the pulp discharge chamber (17) has a conveyor device, e.g. a screw conveyor. 4.) Wine and fruit press according to claim (1) to (3), characterized in that that during the rotation of the container (21) or the drum (14) on the juice chamber segments (11) mounted scraper (18) crumble up the pressed pomace. 5.) Wine and fruit press according to claim (1) to (4), characterized in that that the press has external and internal juice drains, with the external juice drains (13) are incorporated in a heatable double container wall (12),