DE20205565U1 - Disposal unit straining cohesive solid waste from wet vacuum cleaner, includes collection section swinging in opposite direction to container, for transfer - Google Patents

Abstract

The unit (1) is external to the suction flow of the wet vacuum cleaner (10). During separation, the collection section of the vacuum cleaner receiving the wet waste, swings one way (17), whilst the container (4, 6) swings the other way (18) on an axis between them, such that the mass is tipped into it (4, 6).

Description

Applicant: ALTO Deutschland GmbH
Guido-Oberdorfer-Str. 2-8
89287 Bellenberg

02.05.2003 15696.7-01157-58

Facility for separating and disposing of wet-bound suction material

The subject of the invention is a device for separating and disposing of wet-bound suction material, such as granules, powder, quartz sand, mixtures of coarse-grained and fine-grained suction material or mixtures of black powder and cartridge cases and other mixed suction material, while simultaneously separating the coarse-grained suction material from the non-granular suction material and separating the entire suction material from the liquid required for wet binding.

Previously, the only option offered was to vacuum up the suction material and wet-bind it with liquid in the suction container. The user then had no way of separating the wet-bound suction material from the liquid and/or separating the suction material into different particle sizes.

DE 100 17 804 A1 describes a dry/wet vacuum cleaner with an insert part which is provided with wall openings for the passage of the suction air and which is inserted into a receiving space provided in the housing of the vacuum cleaner. The sucked-in dirt and liquid

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The loaded suction air is first fed into the insert part, which can optionally be fitted with a filter covering. As the suction air continues to flow through the insert part and through further sharp deflections of the suction air flow, a solid-liquid separation is achieved, with the liquid collecting in the receiving space, which is only open at the top and otherwise liquid-tight.

The disadvantage of this vacuum cleaner according to DE 100 17 804 A1 is that the solid-liquid separation in the suction flow itself takes place through the sieve-like insert and the tub-like receiving space within the vacuum cleaner, and therefore suction power is lost due to flow resistance. There is also a risk of solid-liquid backmixing if the vacuum cleaner is transported or stored in an unfavorable manner.

The object of the present invention is to provide a device which makes it possible to dispose of wet-bound suction material from a wet-dirty vacuum cleaner and at the same time to separate the wet suction material without impairing the efficiency of the suction power or causing the risk of backmixing of the components once they have been separated.

The technical teaching of independent claim 1 serves to solve the problem.

The essential feature here is that the device for disposing of wet-bound suction material consists of at least two containers stacked on top of one another and/or inside one another, whereby the lower container serves to hold the suction liquid and the upper container serves to hold the solid suction material and that the upper container has openings through which the suction liquid can pass, but not the solid suction material, thus ensuring a solid-liquid separation.

The advantage of the device according to the invention for disposing of wet-bound suction material is that, at the same time as the suction material bound by the suction liquid is emptied from the wet vacuum cleaner, a simple and effective separation between the liquid and the solid components takes place.

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The solid components can then be disposed of separately from the liquid (e.g. incinerated) or recycled, and the liquid can be reused either directly within the vacuum cleaner or after fine filtering.

Of course, the solid-liquid separation can include further stages, so that several filter stages are connected in series, which contain different opening sizes, and thus a further separation of the solid particles takes place in terms of their size. The size of the openings of the filters then decreases from top to bottom towards the liquid collecting tray, so that the largest particles are in the top filter container, the finest solid particles are in the bottom filter container and the liquid collecting tray is located below.

A preferred embodiment of the invention provides for a separation of the solid particles into two particle sizes, namely into a coarse solid component and into a fine solid component, whereby both solid components are separated from each other and from the liquid. At the end of the separation,

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So there are three separation products: the suction liquid at the bottom, the fine solid components above that, and above that the coarse solid components.

For this purpose, two nested filter containers are provided, which are placed on a tray to collect the suction liquid.

Preferably, the upper, coarser filter for the large particles is designed with large openings in the form of a sieve and the lower, downstream, fine filter for the fine particles consists of a filter fleece which is placed in a filter holder which also has sieve-like openings. Both filters are designed as a pot or tub and nest into one another.

The aim of the invention is therefore to achieve a cascade-like filtering of the liquid-bound, solid suction material by means of the device according to the invention and thus to separate at least the liquid from the solid components, but preferably to separate the solid components even more finely from one another into different particle sizes.

Preferably, the liquid-bound suction material is tipped into a separation unit consisting of three different containers using the tipping container of a dirt vacuum cleaner, with the wet-bound suction material from the dirt vacuum cleaner first reaching the top sieve insert, known as the pre-separator. This is where the large particles are separated. The smaller particles pass through the sieve openings of the pre-separator and reach the fleece filter inserted between the pre-separator and the filter holder. The fleece filter separates the small particles and only allows the liquid used for wet binding to flow through into the tray located under the filter holder.

If the disposal device is used in conjunction with a suction device with a tilting container, it is necessary to design the upper part of the disposal device, consisting of pre-separator, fleece filter and filter holder, to be able to pivot around a pivot point anchored in the edge of the tank. The pivoting of the upper part prevents the

When the vacuum container is tilted, the wet-bound suction material and the liquid in the container are poured next to the disposal facility.

In order to prevent the suction container from tipping over beyond the extent necessary for complete emptying, the filter holder is designed in such a way that the upper edge also serves as a stop for the tipping container, with the upper edge of the suction container resting on the upper edge of the filter holder.

The fleece filter is advantageously designed like a bag that is placed in the filter holder and the edge of the bag is put over the upper edge of the filter holder and is prevented from slipping off by the pre-separator that is then inserted. After removing the bag-shaped fleece filter filled with wet-bound suction material, it is closed by folding over the edge and then disposed of. Since it cannot be ruled out that the suction material together with the fleece filter will be disposed of by burning, the fleece filter material must be combustible without having a harmful effect on the environment.

In order to prevent the suction chassis, which is equipped with wheels/castors, from rolling away from the disposal facility when the tipping container is emptied and the wet-bound suction material from being poured next to the disposal facility, the tub of the disposal facility is provided with a contour that connects positively to the suction chassis by hooking the tub into the suction chassis.

To prevent the suction container from resting on the upper edge of the filter holder when tipped over, a driver is mounted on the suction container, which causes the pivoting upper part of the disposal device to pivot in the required way to empty the suction container. The driver is also designed in such a way that it serves as a drip edge for the spilled liquid.

The disposal unit can also be used with a vacuum cleaner container that is permanently mounted in the vacuum cleaner chassis. In this case, the disposal unit needs to be connected in a form-fitting manner to the vacuum cleaner chassis.

because the entire chassis including the container is lifted and the
wet-bound suction material is poured into the disposal unit.

In the following, the invention is explained in more detail by the accompanying drawings
described, with the drawings showing further features and advantages of the
invention.

Show it:

Figure 1: the device according to the invention for the disposal of

wet-bound suction material, which is attached to a mobile, wet-dirty vacuum cleaner
is detachably coupled;

Figure 2: shows a plan view of the embodiment according to Figure 1;

Figure 3: shows the design according to Figure 1 in two tilt positions A and B,

Both the tipping container of the wet vacuum cleaner and
the filter holder with fleece filter and pre-separator of the separation unit
tilted towards each other.

Figure 1 shows the separation and disposal device 1 according to the invention for disposing of wet-bound suction material 7, 8, 9, which separation and disposal device 1 is detachably coupled to a mobile wet-dirty vacuum cleaner 10. However, the wet-dirty vacuum cleaner 10 can also be designed to be portable rather than mobile without wheels.

In the present example, however, the wet dirt vacuum cleaner 10 has at least three wheels that are attached to a vacuum chassis 11 on the floor, of which at least one is designed to be steerable and at least one to be lockable (brakable). A tipping container 12 is accommodated within the vacuum chassis 11 so that it can pivot about a pivot axis 15, in which the vacuumed-up solid particles are bound with water. In another embodiment, however, the tipping container 12 can be permanently installed in the vacuum chassis 11.

The wet/dirty vacuum cleaner 10 of the present example is designed according to the prior art, but additionally has a driver 13 on the upper edge of the tilting container 12, the function of which is described below in Figure 3.

The separation and disposal device 1 is positively attached to the bottom area of the tipping container 12, for example on one of the wheel axles, so that the separation and disposal device 1 can no longer move relative to the wet vacuum cleaner 10.

The separation and disposal device 1 comprises an approximately cylindrical tub 3 resting on the floor for the suction water 9 and an upper part 2 with two filters 5 and 4 which is placed in a form-fitting manner on the upper edge of the tub 3.

The filter holder 6 for the filter fleece 5 is placed directly on the tub 3, whereby the filter holder 6 has a cylindrical outer casing 6b, which in its lower area has a flange 6a for a positive connection with the tub 3, and which in its upper area 6c merges into a conical sieve pot 6d, which is arranged inside the cylindrical outer casing. A pre-separator 4 with a likewise conical pot 4b is inserted inside the conical sieve pot 6d in such a way that the filter fleece 5 is clamped between the two conical container parts 4b and 6d and the two bottoms 4c and 6e of the conical container parts 4b and 6d are spaced apart from one another, so that a collecting space is created between them for receiving finer solid particles 8, e.g. powder. The pre-separator 4 has an upper edge fold 4a, which rests on the upper edge fold 6c of the filter holder 6. The conical container parts 4b and 6d taper downwards towards the tub 3.

The filter fleece 5 therefore runs upwards from the upper area of the cylindrical part 6b of the filter holder 6, is guided there around the upper fold 6c and runs between the two conical container parts 4b and 6d. Below the bottom 4c of the pre-separator 4, the filter fleece 5 runs further along the outer surface of the conical container part 6d towards the bottom 6e of the filter holder 6.

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In another embodiment of the invention, the shape of the pre-separator 4 and the filter holder 6 can be merely cylindrical and thus the inner conical container part 6d of the filter holder 6 can be omitted.

The holes or perforations in the pre-separator 4 and in the filter holder 6 are provided at least in the respective base areas 4c and 6e, but can also be present in the conical shell surfaces 4b and 6d. The holes or perforations of the pre-separator 4 are preferably larger than those of the filter holder 6, but can also be the same size.

Figure 2 shows the top view of the arrangement according to Figure 1. Here it can be seen in particular that the driver 13 does not extend over the entire width of the tipping container 12 of the dirt vacuum cleaner 10, but is only provided in the middle area. The bearing of the tipping container 12 within the vacuum cleaner chassis 11 via bearings 15a on the pivot axis 15 is also clearly visible.

Figure 3 now shows the embodiment according to Figure 1 in two chronologically successive tilting positions A and B, whereby both the tilting container 12 of the wet vacuum cleaner 10 and the filter holder 6 with fleece filter 5 and pre-separator 4 of the separation and disposal device 1 are tilted towards each other.

By swiveling the tilting container 12 up from the position according to Figure 1 in the swivel direction 17 in Figure 3, the position "A" is reached, and by further swiveling the tilting container 12 up from the position "A" the position "B" is reached. During the entire swiveling up process, the suction material to be separated is emptied from the wet dirt vacuum cleaner 10 into the separation and disposal device 1 and separated there into two solid and one liquid component.

According to Figure 1, a mixture 7 of, for example, cartridges, powder and water is poured into the upper pre-separator 4 from the tipping container 12 of the wet vacuum cleaner 10. The larger cartridges remain there, the mixture 8 of finer components (powder and water) reaches the filter holder 6 below.

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where the fleece 5 is located. The powder remains there and the water seeps further down through the fleece 5 into the collecting tray 3.

When swiveling up the tilting container 12 of the wet/dirty vacuum cleaner 10 in the swivel direction 17, it is important that the upper part 2 of the separation and disposal device 1 is also swiveled by the driver 13 of the tilting container 12 about a swivel axis 16 in the swivel direction 18, which is opposite to the swivel direction 17 of the tilting container 12, so that the upper part 2 of the separation and disposal device 1 is swiveled towards the tilting container 12 and thus the tilting container 12 only has to be swiveled by a smaller swivel angle.

Therefore, only the upper part 2 of the separation and disposal device 1 is tilted, namely the pre-separator 4 and the filter holder 6 with fleece filter 5, but not the water collecting tray 3, which remains firmly on the floor so that no water can spill over.

The pivoting of the upper part 2 of the separation and disposal device 1 takes place in such a way that the water from the pre-separator 4 and the filter holder 6 can flow into the tub 3. For this to happen, at least the area of the lower filter holder 6 provided with the openings must be located vertically above the tub 3. The pivot axis 16 of the upper part 2 of the separation and disposal device 1 is therefore located approximately in the area of the positive connection between the separation and disposal device 1 and the dirt vacuum cleaner 10 and can be identical to this.

If the entire tilting container 12 is emptied into the separation and disposal device 1, the tilting container 12 is again pivoted downwards in the opposite direction to the pivoting direction 17 and the separation and disposal device 1 is also pivoted downwards in the opposite direction to the pivoting direction 18 so that the filter holder 6 is placed back on the tray 3. This means that the separation process can be completed after a certain separation time and the separated parts (cartridges, powder, water) can be disposed of or the further

&ngr; .1. ··

Drawing legend

1. Separation and disposal facility

2. Upper part of the separation and disposal facility 1

3. Tub

4. Pre-separator

5. Fleece filter

6. Filter holder

7. coarse solid particles

8. fine solid particles

9. Suction fluid

10. Wet vacuum cleaner

11. Suction chassis

12. Tipping container from

13. Driver of 11

14. Stop at maximum tilt position of 11

15. Swivel axis of 11/12

16. Swivel axis of

17. Swivel direction of 11/12

18. Swivel direction of

Claims (10)

1. Device ( 1 ) for separating and disposing of wet-bound suction material ( 7 ) of a wet dirt vacuum cleaner ( 10 ), wherein the device consists of at least two containers ( 3 ; 4 , 6 ) stacked one above the other and/or one inside the other, and the lower container ( 3 ) serves to hold the suction liquid, and the upper container ( 4 , 6 ) serves to hold the solid suction material, and that the upper container ( 4 , 6 ) has openings through which the suction liquid can pass, but not the solid suction material, and thus a solid-liquid separation takes place, characterized in that the device ( 1 ) is provided outside the suction flow of the wet dirt vacuum cleaner ( 10 ) and for separating the wet-bound suction material at least the part of the wet dirt vacuum cleaner ( 10 ) that holds the suction material and an upper part ( 2 ) of the device ( 1 ) contain the containers ( 4 , 6 ) can be tilted relative to one another in the opposite pivoting directions ( 17 , 18 ), so that the upper edge of the uppermost container ( 4 ) comes to rest on the upper edge of the part of the wet/dirty vacuum cleaner ( 10 ) which receives the suction material, and wherein the upper container ( 4 , 6 ) can be pivoted about a pivot axis on the edge of the lowermost container ( 3 ) in the pivoting direction ( 18 ), or about a pivot axis ( 16 ) between the device ( 1 ) and the wet/dirty vacuum cleaner ( 10 ). 2. Device ( 1 ) according to claim 1, characterized in that several upper containers ( 4 , 6 ) are present. 3. Device ( 1 ) according to claim 1 or 2, characterized in that the lowermost container ( 3 ) for receiving the liquid is fixed and cannot be pivoted with the upper part ( 2 ) of the device ( 1 ) in the pivoting direction ( 18 ). 4. Device ( 1 ) according to one of claims 1 to 3, characterized in that a fleece filter ( 5 ) is inserted between at least two containers ( 4 , 6 ) for separating coarse from fine particles. 5. Device ( 1 ) according to one of claims 2 to 4, characterized in that the upper containers ( 4 , 6 ) each have a conical shell ( 4b , 6d ) and are nested in one another in such a way that a space for receiving separated suction material is defined between the bottoms ( 4c , 6e ) of the containers ( 4 , 6 ). 6. Device ( 1 ) according to claim 5, characterized in that the conical container ( 6 ) located directly above is releasably placed in a form-fitting manner on the edge of the lowest container ( 3 ) via an adaptation part ( 6b ) which is adapted to the external shape of the lowest container ( 3 ). 7. Device ( 1 ) according to one of claims 1 to 6, characterized in that the separation and disposal device ( 1 ) can be repeatedly detachably coupled in a form-fitting manner to the wet vacuum cleaner ( 10 ). 8. Device ( 1 ) according to claim 7, characterized in that the positive-locking, releasable coupling between the separation and disposal device ( 1 ) and the wet vacuum cleaner ( 10 ) is effected via the pivot axis ( 16 ) for pivoting the upper container(s) ( 4 , 6 ) in the pivoting direction ( 18 ). 9. Device ( 1 ) according to claim 8, characterized in that the pivot axis ( 16 ) is arranged on the wet vacuum cleaner ( 10 ) and the matching receiving groove is arranged on the separation and disposal device ( 1 ). 10. Device ( 1 ) according to one of claims 1 to 9, characterized in that the wet-dirty vacuum cleaner ( 10 ) has a vacuum cleaner frame ( 11 ) in which a tilting container ( 12 ) is received so as to be pivotable about a pivot axis ( 15 ).