DE8612280U1 - Cleaning device for the bottom of a cylindrical tub - Google Patents

Description

Dipl.-Ing. 8531 Diespeck /Bavaria

Rudolf Hauner Bahnhofstr. 4

Cleaning device for the bottom of a cylindrical tub. .

The innovation relates to a cleaning device for the bottom of a cylindrical vat of a steeping and/or germination device in a malthouse, in which a sieve bottom which supports the germination material is located above the actual bottom of the vat.

Such devices are used in malting plants and generally consist of a round vat containing a sieve bottom through which the bulk material for malting can be ventilated from below in order to be able to dissipate the heat generated in the bulk material during soaking and germination. Between this sieve bottom and the bottom of the container there is a cavity in which

Dirt and sludge form during malting. To clean this cavity, the sieve bottom is generally removed. This process causes considerable difficulty and work.
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The innovation is based on the task of providing a device that makes cleaning this gap easier.

This task is solved according to the innovation in that in the space between the two floors, on a centrally arranged axis of rotation designed as a column or pin on the bottom of the tub, a rotating device is located, consisting of a driven gear ring to which at least two rotating arms are attached.

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which are provided with inclined wings running perpendicular to the rotating arms and reaching to the bottom of the tub, which, when the arms rotate in one direction, transport the dirt collected at the bottom of the tub to an outlet located on the inner or outer edge of the tub.

Further advantageous embodiments of the subject matter of the innovation are set out in the subclaims.

The innovation is explained in more detail below using embodiments shown in the figures.

Figure 1 shows a cross-section through a germination system with a fixed or rotating turner.

Figure 2 shows a so-called soft system in section. Figure 3 shows a section 1-1 through Figure 2.

Figure 4 shows the drive device according to Figure 1 in detail.

Figure 5 shows sections through Figure 4 in different planes.

Figure 6 shows the drive device according to Figure 2 in detail.

Figure 7 shows a section through Figure 6.

For both examples, there is a round vat 1 in which the bulk material for malting is located. The bulk material is placed on an intermediate floor 6, which is designed like a sieve. Through this sieve floor,

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the space between it and the actual floor 17 _} Air is supplied to cool the malt material.

To clean this gap between the two floors, the following device is suggested*

A rotating device consisting of rotating arms 4, which are provided with rotating vanes 5, is mounted around a common column 2, which extends from the bottom 17 to the ceiling of the container (Figure 1), or around a track pin 3 of the container in Figure 2. In the example shown, only two rotating arms 4 are shown, although several such arms could be provided in the circumferential direction. The vanes 5 extend from the rotating arms in a vertical direction to the bottom 17 of the tub. They are set at an angle in order to push the dirt accumulating on the bottom towards an outlet channel 7 when the arms are rotated in the appropriate direction. At least the part of these vanes 5 that slides on the bottom consists of a flexible material with a low coefficient of friction, in particular of a plastic, for example PTFE.

A motor 8 located outside the tub is used to drive these rotating arms, which in the example shown in Figure 1 is arranged below the floor 17. This motor rotates a pinion 10 via a shaft 9 , which acts on a gear ring 11 that is firmly connected to the rotating arms. The motor shaft can be sealed off from the floor in a simple manner.

In the embodiment according to Figure 2, the motor 8 is located outside the wall of the tub. This motor operates via a shaft 15 that is guided radially into the tub and is mounted on the inside of the sieve bottom (19), or if necessary

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can be mounted on the track pin 3, on a bevel gear drive 16. The gear ring 16a of this bevel gear drive is located on the die arms 4. The example according to Figure 2 is particularly advantageous when, as indicated, the bottom of the tub rests directly on the ground. In this embodiment, an additional hole below the bottom for the motor is avoided.

The rotary movement of the rotary arms 4 in conjunction with the wings 5 advantageously allows the space between the sieve bottom 6 and the bottom 17 to be cleaned in a simple manner at any time, even when the sieve bottom is loaded.

*15 In certain phases of malting, the sieve bottom itself becomes very dirty, which can clog the sieve bottom. In order to be able to clean the sieve bottom from the gap in a simple way, it is also suggested that pipes 12 for supplying spray water be arranged on these rotating arms 4. These pipes lead to spray arms 13 which can rotate with a suitable arrangement of spray nozzles 14 at the end of these rotating arms 13. Due to the high pressure required, the water is supplied to the pipes 12 via a flexible hose fed from the column. It is therefore advisable for this arrangement to design the drive of the rotating arms in such a way that they only cover the angle of rotation that is absolutely necessary for cleaning and emptying.

This is indicated with a double arrow in Figure 3. For example, in an arrangement with three rotating blades, this angle is approximately 120°.

In this way, cleaning of the intermediate layer, which would otherwise be associated with considerable effort, is possible.

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raUfiies between the sieve bottom and the bottom of the tub. At the same time, the sieve bottom can be completely cleaned without a great deal of time and, in particular, during the operation of the entire system. Furthermore, the device has the considerable advantage of avoiding the slope in the bottom 17 that would otherwise be required for cleaning and which would have to be created with considerable structural effort. The bottom of this device is therefore preferably flat.

When retrofitting older systems that have such an inclined floor, which for example slopes inwards in a conical manner, the blades 5 on the rotating arms can be adapted to the slope of the floor.

The entire drive device around the column 2 or on the track pin 3 is advantageously designed in the form of two screw-together half shells, which are placed around the column or the pin, in order to facilitate assembly. This can be seen in detail in Figures 4, 5 and 7. The gear ring 11 consists of two diagonally divided halves, which are screwed together via a ring 18 which is also diagonally divided and offset in the circumferential direction.

This means that these parts can be dismantled and maintained at any time for service purposes. For the continuous column, these parts can also be installed later.

4 Protection claims
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G86 Round container ; 12 280.0 8 Center column nomenclature Track pin 1 Rotating arm 2 Clearing wings 3 Sieve bottom 4 Dirty and waste water outlet 5 engine 6 Wave 7 pinion 8th Sprocket 9 Pipeline for spray arms 10 rotating spray arms 11 Nozzles 12 Shaft for Figure 2, Figure 6, Figure 7 13 Bevel gear drive 14 Sprocket of 16 15 Bottom of containers 16 split connecting ring 16a Bearing of shaft 15 on the sieve bottom 17 18 19

Claims (4)

&bull; · &bull; · G 86 12 280.0 Protection claims 1. Cleaning device for the bottom of a cylindrical vat of a steeping and/or germination device in a malthouse, in which there is a sieve bottom in the vat above its actual bottom, which carries the germinable material, characterized in that in the space between the two bottoms, on a centrally arranged axis of rotation designed as a column (2) or pin (3) on the bottom of the vat, there is a rotating device consisting of a driven gear ring (11) to which at least two rotating arms (4) are attached, which are provided with inclined wings (5) running perpendicular to the rotating arms and reaching to the bottom of the vat, which, when the arms (4) are rotated in one direction, convey the dirt collected on the bottom of the vat to an outlet (7) located on the inner or outer edge of the vat. 2. Cleaning device according to claim 1, characterized in that a pipe system (12) is attached above the rotating arms (4) and to these, which is fed with pressurized water from the center of the rotating device and which carries rotating spray arms (13) pointing upwards at suitable intervals, which carry spray nozzles (14) the jet of which is directed upwards to the sieve bottom (6) located above. 3. Cleaning device according to one of the preceding claims, characterized in that the drive device for the rotating arms (4), which essentially consists of the toothed crane (C11), is divided diagonally and can be screwed in the circumferential direction. «(&bull;44 ■ I (lit «If» . I I I I I i a . * . · I ill *f B* l.tWMIIII Il I 4. Cleaning device according to one of the preceding claims, characterized in that at least the part of the clearing blades (5) resting on the floor (17) consists of a slippery, elastic material. M ti Il I · Il Il it I (III &bull;tt «III 11)1 Il