CH327691A - Washing method and machine for carrying out the method - Google Patents

Description

Washing process and procedure for carrying out the process For washing or carrying out similar operations, for example the washing of textile materials or the washing of dishes, an as, in fact, an identical basic process consisting in bringing the materials or products to be washed in the presence of a moving liquid medium. The present invention relates to a washing process consisting in introducing, into a tank, a liquid mass, the washing products and the articles to be washed, in putting said liquid mass in motion by at least one rotary member, to be created by said rotating member, in said liquid mass, successive zones under depression and pressure, and to introduce into said liquid mass, in line with said zones of depression, a gaseous fluid, which is absorbed by the liquid mass which is transformed into a mass occurring in an intermediate state between foam and emulsion.

As a gaseous fluid, it will generally introduce air passing through the hollow part of the moving organ and dividing into radial veins, each vein terminating in a zone of depression immediately followed by a zone of pressure.

The invention also relates to a machirre for the implementation of this process. This machinre comprises at least one tank provided in its bottom with a pulsator intended to agitate the liquid mass in the tank and to create a succession of depression zones and pressure zones, said pulsator having passages for the adduction of a gaseous fluid, a means being intended to drive said pulsator in rotation and another means controlling the air gap in said pulsator.

The attached drawing shows, by way of example, one form of execution of the jaw according to the invention. fig. 1 is a radial section; fig. 2 shows, in plan view with partial section, a vacuum pulsator; fig. 3 is a section along the line <I>111-11I</I> of FIG. 2.

The machine to be washed according to the invention comprises a tank 1 having a double concave bottom 2-3; the first of these has perforations 4. A perforated false bottom 5 surmounts the said bottoms 2-3. The latter are traversed by the vacuum pulsator. This is, for example, constituted by a hollow axis 6 on which is fixed the pulsator itself 7 surmounted by a screen B.RTI ID="0001.0266" WI="4" HE="4" LX="1313" LY="2228"> This pulsator is su.scepti- ble to be driven in rapid rotation by an electric motor 9 via the pulley 10 mounted on Faxe of said motor, a belt 11 and a pulley 12 fixed sofft directly on the hollow shaft 6, sofft, as illustrated in fig. 1, on a sleeve 13 integral with the pulsator 7. The hollow axis 6 is in communication with an air intake 14 extended, for example, above the upper edge of the tank 1. This air intake can be capped with a valve closure and adjustment 15 whose first valve or cover could Ure travers6 by a conduit 16 bringing, for example, a heating fluid. The pulsator 7 is constituted by two parallel flanges 17-18 joined together by substantially radial ribs 19 delimiting hollows 20. The bottom of each of these comprises at least one substantially tangential passage 21 leading to Jans Erous tube 6. Downstream of each channel 21 is provided a passage 22 passing through the lower flange 18. These passages are profiled and present a lower lip 23.

During the implementation of the process, an introduced into the tank 1 of the machine the necessary quantity of water, the washing products and the articles to be washed; 1st motor 9 is on. in circuit, the air intake 14 being momentarily closed; an thus produces a first mechanical mixing in order to achieve a good mixture; then the pulsator 6 being kept in rotation, an opens the air intake 14 and, almost instantaneously, one observes a modification of the state of the aqueous medium, which is transformed into a cellular mass consistent with strong agitation reduced to upward component; after a certain time, the upper part of said cellular mass can be removed at the same time as the impurities which it carries and which come from the products and articles to be washed are removed. This operation can be repeated sometimes depending on the nature of the materials to be washed and especially their initial state of soiling.

Claims (12)

CLAIMS I. Washing process in a moving aqueous medium, characterized in that it consists in introducing, into a tank, a liquid mass, the washing products and the articles to be washed, in putting the said liquid mass in motion by at least at least one rotary member, to create by said rotary member, in said liquid mass, successive zones under depression and pressure, and to introduce into said liquid mass, in line with said zones of depression, a gaseous fluid, which is absorbed by the liquid mass which transforms into a mass presenting RTI ID="0002.0271" WI="7" HE="4" LX="1231" LY="631"> in an intermediate state between foam and emulsion . II. Washing machine for 1.a implementation of the process according to claim I, characterized in that it comprises at least one tank provided, in its bottom, with a pulsator intended to agitate the liquid mass Jans the river and in creating a succession of depression zones and pressure zones, said pulsator having passages for the adduction of a gaseous fluid, a means being intended to drive in rotation said pulsator and another means controlling the entry of air into said pulsator. SUB-CLAIMS 1. Process according to claim I, characterized in that air is introduced, as a gaseous fluid, passing through the hollow part of the moving organ and dividing into radial veins, each vein terminating in a zone of depression. immediately followed by a pressure zone. 2. Proced6 according to sub-claim 1, characterized in that said gaseous fluid is introduced in a continuous manner. 3. Process according to sub-claim 1, characterized in that the gaseous fluid is introduced periodically. 4. Process according to claim 1, characterized in that said mass is periodically evacuated if it is in an intermediate physical state between the foam and the emulsion accumulated in the top of the tank and on which the impurities are fixed. 5. Machine according to claim II, characterized in that the tank comprises a double concave bottom, the upper bottom of which is provided with perforations and, above the said double conical bottom, a perforated false bottom. 6. Machine according to claim <B>11,</B> characterized in that the first pulsator has, in its thickness, equidistant peripheral hollows, in the first bottom of which emerge radial channels issuing from its hollow axis. 7. Machine according to claim 11, charac- terized in that the first pulsator is constituted by two flanges secured by radial ribs, in the first recess of which open passages coming from its hollow axis. B. Machine according to claim II, characterized in that the ribs joining the two flanges have a curved triangular shape, one side of which is convex and the first adjacent side concave. 9. Machine according to claim 1I, characterized in that the ducts originating from the hollow fax of the pulsator and emerging in Jans the first bottom of the hollows are tangent to the convex curved side of each corresponding hollow in Jans. 10. Machine according to claim 11, characterized in that the hollow base of the pulsator is extended by an air intake duct, itself curved and extended to reach a level higher than the highest level of the Jans liquid mass. tank. 11. Machine according to claim II, characterized in that the first air intake duct extending the hollow base of the pulsator is capped with an adjustable shutter. 12. Machine according to claim 11, characterized in that the adjustable shutter of the air intake duct is traversed by a conduit for supplying a heating fluid.