DE2830462A1 - SORTING DEVICE FOR TROUT AND OTHER FISH SALMON - Google Patents

Description

Sorting device for trout and other fish spawn

The invention relates to a sorting device for trout and other fish spawn that uses the different rebound properties of the spawn. This property is dependent on the vitality of the individual eggs and therefore their more or less good quality varies.

The sorting apparatus according to the present invention "consists made of parts that align the fish eggs and arrange them at an appropriate distance on a rotating drum on which they are dried by means of suction air and then brought up to a rebound wall, against which they are then thrown and of which, due to their different elastic nature, conditioned by their quality state, they are more or rebound less and fall into the appropriate collecting container due to their own weight, from where they are then emptied will.

There are already provided with photocell sorting devices for fish spawn, which on the different, by the Color due to vitality, which separates the vital eggs from the lifeless ones Eggs differ, respond, but such devices have extremely poor performance.

The purpose of the present invention is therefore to provide a high-performance sorting device which at the same time has a can sort out a far greater number of eggs. The inventive Device gives ten times the performance compared to the known devices. Further, a purpose of the new device is also that Allow counting of the sorted eggs with reasonable accuracy.

The device according to the invention has a basin of more or less large dimensions in which the spawn together with

809835/0804

Water is poured. A drum rotates in this basin, on the shell of which there are a number of perforated bottoms Shells "or cups is excluded, which each hold an egg. The perforated drum lifts the spawn out of the water and then, after drying, directs the individual ones by means of ventilation Eggs in front of the rebound wall, after which they are thrown in rows against this rebound wall by means of compressed air which the eggs rebound to different extents due to the aforementioned differences in quality or condition and in

Collection containers fall, from which they are then emptied to the outside.

The subject of the invention is shown schematically in the accompanying drawings]! shown only as an example. Show it:

FIG. 1 shows, on a considerably reduced scale, the scheme of the sorting device in cross section;

iigur 2 the sorting device according to Figure 1 in plan view;

FIG. 3 shows an enlarged partial view according to FIGS. 1 and 2 the conveyor drum for the spawn in cross section;

Figure 4- the conveyor drum and the associated parts in longitudinal section, and

Figure 5 shows a scheme for performing the calculation of the number of Eggs.

The basic element of the sorting device is a drum or cylinder 1, which has a number of recessed cups 3 on its outer shell, in which the mixture of water and fish spawn is filled and which are provided with a perforated bottom and each arranged in parallel rows.

The rotating drum 1, which executes an ascending movement on the side facing the basin 2, takes water from this and spawn in a well-distributed form, with the respective cups being refilled. Any sticking to the drum Eggs that are not filled into the cups 3 are by means of

809885/0804

the sprinkling device 4- washed back into the mixture in the pool.

During its rotary movement, the drum 1 promotes the deposited on it Eggs to the top, where they are dried by means of air suction through the bottom openings of the cups. After submission the eggs opposite the rebound wall 5 are the same against these are thrown by means of compressed air, from which they then rebound more or less depending on their nature, so that there is a sorting, and in each case in separate compartments 6 and 7 fall. Compartment 6 is where those thrown farthest fall than the best and the better in terms of quality Eggs having rebound resilience. The compartments 6 and 7 are provided with lines 8 and 9 which have a sloping bottom and in which water flows so that the sorted spawn is discharged to the outside.

At the uppermost point in the drum 1, a suction line 10 is provided, which is connected to a suction fan which is not shown in the drawing.

In addition, the inside of the drum on the rebound wall 5 opposite point a blow line 11 is provided, which is externally connected to a pressure fan, which is not shown is.

The drum 1 is driven by an electric motor arranged in the housing 13 via a drive belt 12.

For the sake of clarity, the lines shown in the figure become water passed into the basin 2, into which the fish spawn to be sorted is entered, and the sprinkling device 4- and the sprinkler system for discharging the sorted eggs.

The inclination of the rebound wall 5 is adjustable and so is the Position of the partition 14 between the compartments 6 and 7

809335/0804

The partition wall I5i which is arranged in the basin 2 at a distance from the floor forces the spawn to distribute well at the transition under this partition from basin 2 to the drum 1.

The water that gets into the drum as a result of the suction is sorted to discharge the water coming from the lines 8 and 9 Fish eggs used outside, or the water can also be used directly be directed to the outside.

The drum 1 is mounted on side walls 16 and 17 and rotates around a tube 18, through which partially sucked and partially Compressed air is supplied (Fig. 4).

After the eggs are attached to the drum according to an accurate and constant Adding the number and arriving in an orderly manner for sorting only need the rows or for sorting the revolutions of the drum to be counted, multiplied by the appropriate coefficient, to be fairly accurate determine the number of sorted eggs.

A mechanical counter 19 or a photocell is sufficient for this 20 to count the eggs.

So that the good eggs alone can be counted, they need them only passed through the device again after sorting to become.

According to an embodiment of the invention, a separate Counting device are provided.

As FIGS. 1 and 3 show, the bottom of the basin runs slightly obliquely in the direction of the drum 1, the end of the base closely following the radius of curvature of the drum 1, so that no water with spawn escapes between the bottom and the drum.

809885/0804

With 13 a drive unit is designated in Figure 2, which the Drum 1 drives via a V-belt 12. As FIG. 3 shows, the suction line 10 is in the region of the drum shell widened so that several rows of cups 3 are flowed through by the sucked in air. The blow line 11 is designed so that the compressed air exiting through this only acts on a number of cups.

809885/0804

Blank page

Claims (9)

Dr. F. Zumstein Sr. - Dr. E. Assmann - Dr. R. Koenigsberger Dipl.-Phys. R. Holzbauer - Dipl.-Ing. F. Klingseisen - Dr. F. Zumstein jun. Patent attorneys Dr. F. Zumstein sea, Dr. E. Asemann. Dr. R. Koemgsberqer. OipL Phys. R. Holzbauer, DipUnt). P. Klingseisen. Df. F. Zumstein jun. - Bräuhausstraße 4 ■ D-BOOO Munich 2 8 MUNICH 2, BRÄUHAUSSTRASSE 4 TELEPHONE: (089) 225341 TELEGRAMS: ZUMPAT TELEX 529979 6789 C GL / av Adriano Facchinelli, Ceole di Riva del Garda (Trento) Patent claims S orti ervorrx along for trout - or other fish spawn, characterized by a device (3) for placing and aligning the eggs at a distance from one another on a rotating one Drum (1) on which it is dried by means of suction air and from which it is then thrown against a wall (5) from which, they bounce off to different extents according to their nature and due to their own weight fall into separate collecting containers (ß, 7), from which they are then emptied to the outside. 2. Sorting device according to claim 1, characterized by a Basin (2), into which the spawn is poured together with water and in which the drum (1) continuously rotates, which on its shell a number of indentations aligned in parallel rows according to the generatrix of the drum 80988S / 0804 ORIGINAL INSPECTED or cups (3) which are provided with a perforated base and are provided for receiving an egg each. 3. Sorting device according to claims 1 and 2, characterized in that that the drum lifts the eggs in the cups out of the water as it rotates. 4-. Sorting device according to Claims 2 and 3, characterized in that that the eggs in the cups are dried by applying air, the drying on a certain point of the drum takes place by means of air sucked in through the bottom holes of the cups via a Suction fan. 5. Sorting device according to claims 1 to 4-, characterized in that that the! fish eggs after drying through a device arranged in the interior of the drum (1Ί) be thrown against the rebound wall (5) by means of compressed air passed through the bottom openings of the cups. 6. Sorting device according to claims 1 to 5, characterized in that that the rebound wall is opposite the line of the spawn's sling and perpendicular to the blowing direction of the slinging air is arranged. 7. Sorting device according to claims 1 to 6, characterized in that that the sorted eggs, which fall down after the rebound due to their own weight, one Travel through a distance in the horizontal direction, which corresponds to the kinematic energy after the ricochet. 8. Sorting device according to claim 7, characterized in that the receiving container (6, 7) for the sorted eggs have inclined bottom for discharging the eggs by means of trickle water. 9. Sorting device according to claims 2 to 8, characterized in that that they are using a counter for approximate counting 309885/0304 of sorted eggs is provided, with either the rows on the drum as it passes or the number of revolutions of the drum can be counted. Sö9885 / ö8 (H.