DE692501C - agricultural products - Google Patents

Description

Washing device for beet leaves and other agricultural ones Products The invention relates to a washing device for beet leaves and other agricultural products, which essentially serves this to remove sand and dirt. In such washing devices, the items to be washed with the supply of water flowing down onto the items to be washed with the aid of an inclined lying screw conveyor .lifted, in one of an impermeable housing surrounding sieve trough.

In the known washing devices of this type, only water is used sprayed onto the leaves from above. As a result, it may happen that the bottom, the Leaves not sufficiently exposed to the wasqhwasserstrom and, cleaning either does not take place thoroughly enough or takes too long.

At. Washing devices for agricultural products, in which the items to be washed are effected by means of running sieve belts or sieve drums through a support becomes, - it is already known, this water both from above and from below feed, the water fed in from below through the perforated, the laundry bearing surface occurs.

The invention now aims, also with washing devices with inclined conveyor screw the washing water both at the top at the front and at the same time feed from below, the supply of water from below in a simple manner without special spray nozzles etc. 'should be done.

The invention consists essentially in that, the trough housing, which surrounds the sieve, through transverse walls in chambers stacked like a staircase is divided, which alternately through the respective transverse wall reaching up to the sieve .are separated from one another or connected to one another by cables. This will achieved that the water flowing down from above einreal after reaching the sieve trough Approach the leaves from below through the sieve and then again in the next Chamber drains from which the water then flows again from the bottom through the sieve up into the washroom and thus under the Leaves occurs, whereupon the process is repeated in the next chamber. By the invention is the inclined position of the voxhandenen sieve tray in more advantageous Way to solve the task by -the arrangement of the mentioned chambers exploited, so that apart from this special design of the trough housing no further Precautions are needed.

The beet leaves are washed from above and below in this way, so that not only better, but also faster cleaning: is achieved. Consequently can be the length of time in which the sheets must pass through the washing device, shortened or the length of the conveyor screw and the sieve trough reduced.

The washing device according to the invention can also be equipped with sludge traps or sludge drains. Such sludge drains are per se general known. In the present case, an advantageous and inexpensive arrangement of the Sludge drainage can be achieved in that the staircase-like superimposed Chambers of the trough housing are provided with the sludge drains at the same time. Through this this prevents sand or other impurities from being flushed up again. Rather, these impurities collect in the individual chamber sections and can be drained from there. The chambers thus serve at the same time advantageously for sludge separation.

The application of the invention does not exclude that also water is fed through the sieve through special chambers from below under pressure, if occasionally a particularly powerful washing effect is to be achieved from below.

In the drawing, the invention is illustrated, for example, namely Fig. i shows a cross section of the washing device with the circumferential Screw and .the supply of water from above and at the same time from below, 'Fig. z a longitudinal section of the washing device.

In the embodiment shown in the drawing, the washing device consists of an inclined perforated base or sieve trough u, in which a conveyor screw f rotates and lifts the leaves upwards: the. Sieve trough a. Is surrounded by a trough housing b, which is impermeable to water. 'Above the conveyor screw i, shower heads are arranged through which the water flows from above onto the items to be washed and runs off downwards. Of course, washing water can also be added from above in other ways. The washing water should now partially sink through the perforated base a and come back under the laundry from below through the base a. For this purpose, the impermeable trough housing b is divided into individual chambers i and k by partition walls. These individual chambers are supposed to. be connected to each other in such a way that the water runs from one chamber into the other and here comes up to the items to be washed once from above through the sieve and then again from the next isammer from below through the sieve upwards. In Fig. A it can be seen how the water, which has passed, for example, from chamber i through the connecting line e into chamber k, passes from chamber k from below through the sieve into the washing room m at point lt, where .es influences the items to be washed from below, then the water runs back into the next chamber i, etc. In the chambers, for example in chambers k, sludge traps d are provided.

In some sections of the wash trough special chambers c are arranged, in which water can be introduced under pressure, so that in this way a particularly heavy washing can be achieved from below.

Claims (1)

PATENT CLAIMS: i. Washing device for beet leaves and other agricultural products, in which the items to be washed are lifted with the aid of an inclined conveyor screw, with the addition of water flowing down onto the items to be washed, which rotates in a sieve trough surrounded by an impermeable housing, characterized in that @ the trough housing (b), which surrounds the sieve (a) is subdivided by transverse walls into chambers (i, k) lying one above the other like a staircase, which are alternately separated from one another by the respective transverse wall reaching up to the sieve (a) or connected to one another by lines (e) a. Washing device according to claim i, characterized in that the chambers (i or k) are provided with sludge outlets (d) .