DD231301A1 - METHOD AND DEVICE FOR CLEANING LAYERS OF COREAL SUBSTANCES - Google Patents

Abstract

The invention relates to the separation of specific lighter soils from koernigen substances, in particular the cleaning of sand in Spielkaesten. The aim of the invention is to provide a simple reliable device that can be operated manually, with which it is possible to dispense with the transport of the sand. According to the invention, the sand is taken up with a blade-like structure 1,2,4, which is open in the direction of work, whirled up by Spuelduesen 6 and the flushing water with the dirt particles via a Ueberfallkante 3 on one side of the blade removed where it seeps and the Deposit contaminants. The processing takes place in strips, whereby the contaminants are shifted to the next strip and concentrated. The contaminants are removed from the last strip. figure

Description

Method and device for cleaning layers of granular substances

Field of application of the invention

The invention relates to the separation of specifically lighter soils from granular substances, in particular sand.

The top layer of the granular material is treated. The invention is particularly suitable for cleaning sand in play boxes for children.

Characteristic of the known technical solutions

So far, it is necessary to replace the sand in game boxes at regular intervals. There are considerable transport costs. From the field of water purification, various plants are known in which the pate sand is hydraulically taken up, cleaned and reintroduced. The dirty rinsing water is removed (WP 62302).

These systems are too expensive for the intended application · They also have a high energy and water consumption and are not suitable for manual operation.

Object of the invention

The object of the invention is to provide an operationally safe, uncomplicated method and a simple manually operated device with which it

-ESER1983 * 1142ÖO

it is possible to clean the sand in layers to save on transport costs.

Explanation of the essence of the invention

The object of the invention is to develop a method in which it is possible to clean the granular material immediately in the position where it is installed and at the same time can be dispensed with the withdrawal of the rinse water with the contaminants.

According to the invention, the object is achieved in that the granular material in narrow strip of surface is stirred up to a predetermined depth hydraulically by rinse water, the rinse water is deposited with the contaminants laterally of the processed surface strip in the direction of the subsequently processed surface strip and seepage. In order to support the Aufwirbelung additionally air and germicide additionally disinfectant can be supplied. In this way, the contaminants are shifted from one strip to the next and concentrated on the surface. The concentrated contaminants are then removed from the last surface strip.

The device according to the invention consists of a bottom plate, lateral boundary walls which are lower in the working direction, wherein a boundary wall in the rear portion of the device has a lower upper edge, a working in the rear boundary wall, which is provided at the bottom with openings · In the front part of the device are located down to the floor directed flushing nozzles. These are preferably mounted on a horizontal transverse to the direction of Eohr having a water connection.

-5SEB1983 * 11425C

The puncture is as follows:

The device is pulled horizontally over the surface strip to be cleaned and engages with its front bottom plate in the granular medium · Through the flushing nozzles, the rinse water is blasted onto the floor and whirls up the recorded medium · The rinsing water with the lighter bloated contaminants flows over the ridge edge unilaterally, while the coarse-grained and heavier material is deposited through the rear openings · after a strip has been processed, the device is moved to the side where the rinse water was discharged · This is until the entire area except one Remaining strip, is processed. Finally, the remaining deposited at the top material is scooped out of the rest of the strip.

embodiment

The invention will be explained below with reference to an embodiment with reference to the accompanying drawings:

The device is formed like a blade and has a bottom plate 1, lateral boundary walls 2, wherein a boundary wall has an overflow edge 3 and a rear boundary wall 4 with openings for the cleaned material 5. In the front part of the device, a threaded pipe 7 is attached, the flushing nozzles 6 and has a water connection 8.

-5StR 1983 * 114251:

Claims (5)

^ rfindungsanspruch to a method for cleaning layers of granular materials, characterized in that the granular material is swirled strip by line successively to a predetermined depth hydraulically by rinse water, the rinse water deposited with the substances to be separated laterally of the processed surface strip in the direction of the subsequently processed surface strip and seepage becomes. 2. The method according to item 1, characterized in that air is supplied before or simultaneously with the rinsing water · 3 · Method according to item 1, characterized in that simultaneously with the rinse water a liquid with sterilizing effect is supplied. Device for carrying out the method according to item 1, characterized in that lateral boundary walls (2) are mounted on a base plate (1) which become lower in the working direction, wherein a boundary wall (2) in the rear section of the device has a lower overflow edge ( 3), a rear boundary wall (4) with openings (5) is provided in the rear region and in the front region of the device down to the bottom plate (1) directed flushing nozzles (6) are arranged. 5. Device according to point 3 »characterized in that the flushing nozzles (6) are mounted on a horizontally arranged transversely to the working direction of the tube (7) having a water connection (8). For this 4 series Zei'h -5SER1983 * il <t-2ö =