DE1015750B - Method and device for washing potatoes and. like - Google Patents

Description

GERMAN

For washing voo potatoes and the like are so-called "Spiral washers" known, these are washing systems with a receptacle for the items to be washed and a vertical, with one end opening into this laundry container, a screw conveyor containing conveyor pipe, the laundry from the screw to a at the upper end of the conveyor pipe provided. Outlet for discharging this good is promoted.

It is also known that in the case of Erzwäschen, the same type of construction, the items to be washed in a cycle via the discharge point d.To wash the facility repeatedly.

In both cases, therefore, the laundry ¹ is lifted up from the Waschgutbehälter for discharging and can then be discharged selectively or fall back into the Waschgutbehälter.

According to the invention, this method is improved in such a way that the items to be washed have already returned to the discharge point after a part of their carriage has been covered can be returned to the wash water.

Compared to the systems in which the items to be washed can also be washed several times, but between the individual washing processes ¹ must cover all the way to the support point, this has the advantage that the empty path is the good thing; Path containing between the water bottom of the riser or production tubing in which only "washed" is, and the point where · the material exits the riser, is to return the container ^1, substantially shortened, resulting in a corresponding shortening of the Geisamtwaschzeit means. At the same time it is achieved that the laundry does not fall back from such a great height into the laundry container without special means as when it is returned via the discharge point, which is particularly advantageous with potatoes, fruit and the like. On the other hand, it is useful to carry out the discharge of the items to be washed in the usual way at a greater height above the container, and the items on their way to the discharge point ¹ before their final exit from the ¹ system from above on a long way additional washing water too. trickle over and rinse off ......

A quick change of the washing water in the delivery pipe itself is advantageously effected by that in on. known way in the area of the liquid level of the laundry container and above permanently open drain openings in the jacket of the For-, derrohres are provided. After another ... feature the invention these openings for. Protection against splash water is advantageous from a shielding plate: surrounded at a distance.

The drawing illustrates an embodiment of the subject matter of the invention.

Method and device
for washing potatoes and the like.

Applicant:

Jacob Carl, Göppingen (Württ.),
Ulmer Str. 42

Jacob Carl, Göppingen (Württ.),
has been named as the inventor

Fig. 1 shows the new "spiral wash" in vertical section;

FIG. 2 shows a detail from FIG. 1 on a larger scale; FIG.

Fig. 3 is a cross section along the line III-III from Fig. 2.

The items to be washed, potatoes or the like, are placed in a container 1, up to level 2 with it Water is filled and in which one, essentially vertical conveyor pipe 3 protrudes, which, in contrast to the usual up to the container bottom, and on one string - about one. area of 180 ° - a recess for the. Entry of the laundry having conveyor pipe advantageous in such a distance from the container bottom ends that at least the corresponding to the conveying capacity of the screw Potatoes from, all, sides; get under the pipe and enter it from below. Within the . Conveying pipe 3, a screw conveyor 4 is arranged, which enters the pipe 3 Potatoes or the like. By the in the tube in the

4ό same height as water standing in container 1 transported upwards. In the area of the upper end of the conveyor pipe is. an outlet 5 is provided on this, of which the items to be washed can get into free or to any point of consumption.

- A little below the outlet 5 is a connection 6 provided for a water supply, by means of dieren additional washing water introduced into the delivery pipe which trickles over the laundry from above.

- According to the invention, the conveying pipe 3 is at a suitable height - in the case of shorter pipes, in the vicinity of the upper end of the pipe, correspondingly for long pipes deeper ■ - · a. Return pipe 7 attached, by means of this the items to be washed are returned to the washing machine

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leads be, kaiin, if, a, at the inlet of the return pipe provided slide 8 is opened. A slide 9 is also provided at the outlet, in particular when the return pipe - as fully drawn - is located at the height of the outlet is.

.. In the area of the water level 2 and to a certain extent The height above is the delivery pipe with wall openings. 10 provided ;, by walchie that when conveying of the items to be washed, the water lifted by the screw can flow back outwards into the container 1, so that. the water inside 'the pipe in the circuit is constantly renewed.

LTm injecting this back flow emdön Water too. prevent the delivery pipe in the area of these openings at a suitable distance be surrounded by a shielding plate 11.

In order to separate carried stones out of the items to be washed, the screw conveyor shaft is in height of the usual, Siebbod'ens 12, advantageously a centrifugal disk 13 attached. The outlet pipe 14 for the washing liquid is connected to the bottom of the container.

With high conveying pipes, i.e. long conveying screws, the taste has been observed to be easy to taste, owing to its necessarily poor taste Distance from. the pipe wall causes rapid wear of the pipe wall and the taste.

According to the invention, long screw conveyors are therefore Narrow longitudinal slots are provided in the wall of the conveyor pipe through which suitable Positions of the pipe circumference arranged and stored Support roller «· 15 protrude into the interior of the conveyor pipe up to the contact with the Schnieckenkanta, which the Lead snail. The one with the back-up rolls to touch any "part of the taste" edge is advantageous with. a welded-on reinforcement 17, these being: Reinforcement applied in a ring shape and pointing down.

Three or more such backup rolls are advantageous; 16 arranged at the same height, with one, two or more depending on the height of the conveyor pipe such back-up roll sets, suitably distributed over the length of the pipe, can be provided. The joint, between the support roller and the adjacent slot edges of the tube slots 15 are advantageous sealed.

Of course, several return pipes can also be used 7 can be provided in different heights.

Claims (9)

Patent claims 1. Procedure for washing potatoes and the like in "Spiralwäschleni", the upward in a conveyor pipe by means of a bucket conveyor screw conveyed laundry at the upper end of the conveyor pipe discharged from the facility or optionally in, any repetition in the circuit in the wash water can be returned., characterized: that the laundry already after, covering a part, his way to the 6p Discharge point. in the wash water is recyclable. 2. Apparatus for performing the method according to claim 1 with a vertical, a Conveyor screw containing, with its one end opening into a laundry container feed pipe, at the upper end of which there is an outlet for discharging the washed items, characterized in that on the delivery pipe (3) at a suitable height between the water level in the container (1) and. the upper end outlet. or more at their entrance z. B. by means of slide (8) a, bspe, rrbare return pipes (7) are provided, which are above the laundry container (1) flow freely. 3. Performing according to claim. 2, characterized, that the outlet (5) of the conveyor pipe (3) z. B. can be shut off by means of a slide (9) is. 4. Apparatus according to claim 2 or 3, characterized in that in the region of the mirror (2) the one contained in the washing container (1). Washing liquid and in particular over a certain amount Height from the mirror turn on at the top. himself, better known Way openings (10) in the wall of the conveyor pipe (3) for returning the lifted Water to the outside in the container (1) are provided. 5. Apparatus according to claim 2 to 4, characterized in that the conveying pipe (3) in the area of the return openings (10) in some Ab- . stood by a shielding plate (11) as protection against splash is surrounded. 6. Apparatus according to claim 2 to 5, characterized in that the conveyor pipe (3) for supporting, the rearranged length of the screw conveyor at one or more points of its Length of support rollers · (16) are provided, which are distributed in a suitable circumferential manner through longitudinal slots. (15) of the conveyor pipe (3) until it touches the screw edge in its interior - rush. 7. Performing according to claim 6, characterized in that the Schmeckenkanta in the area the support roller (16) preferably has a welded-on, ring-shaped reinforcement pointing downwards (17). 8. Device according to buckets dar claims 2 to · 7, characterized gekennzeichnat that the conveyor pipe (3) ends in a manner known per se at the bottom at a distance from the container bottom that the Laundry has access to the screw conveyor from all sides. 9. The device makes one of claims 2 to 8, characterized in that; marked that on, the wave the conveying screw, below the conveying pipe (3), preferably at the level of the usual Siebbcdans (12) of the container (1) a centrifugal disk (13) for separating carried stones is attached. Considered publications:
German Patent No. 806 841;
Swiss patent specification: No. 228 155. 1 sheet of drawings © 709 696/64 9.57