DE8222078U1 - CELL WHEEL LOCK - Google Patents

Description

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Dipl.-Ing.

Rolf Charter

Patent attorney Rehlingenstrasse 8 ■ P.O. Box 260

D-8900 Augsburg 31

Telephone 08 21/3 6015 +3 6016

Telex 533275

PosucheckKume Manchen No. 1547 89-801. , _

8464/58 _3_ Augsburg, July 22, 1982

company

Andreas Jaudt
Machine factory

8900 Augsburg

Rotary valve

The innovation relates to a rotary valve with a rotary valve rotatably mounted in a housing Vane during the rotation of the bucket wheel from an upper inlet opening of the housing, where that to be conveyed Material runs into the pockets between the wings, migrates to a lower outlet opening of the housing, from where the material leaks into the pockets.

The material conveyed by the rotary valve is usually a bulk material. If it is normal bulk material, then the amount of material conveyed depends from the volume of the pockets and the speed of rotation of the cellular wheel. Usually prevails between the inlet opening and the outlet opening a pressure difference, it being possible for the higher pressure to be present at the inlet opening. This is for example the case when the bulk material is fluidized.

Fine-grained and powdery bulk goods, such as Fly ash, in their air-loosened state, show a flow behavior which is comparable to water is. These bulk goods penetrate into all gaps

8464/38 -4- July 22, 1982

and gaps in the rotary valve, whereby an uncontrolled material flow results from the fact that the bulk material in construction and ver Gaps between the cellular wheel and the housing | or between the star feeder and the end shields of the housing I. runs through. This can lead to fiuidisiert Fly ash the material flow d'jrch the rotary valve can be twice as large as arithmetically - from the pocket volume and the speed of the rotary valve results in *

The task is to design the rotary valve in such a way that that dusty and fine-grained bulk materials, such as fly ash, only in a controlled manner Way through the rotary valve are conveyed, even if the bulk goods are in a fluidized state are present.

This object is achieved with the features of claim 1. Advantageous refinements are set out in the subclaims removable.

By providing a flat slide above the Entry opening at which the size of the passage opening is adjustable, a controlled supply of material to the inlet opening is effected. Here the The size of the passage opening is set so that the bulk goods are in the pockets after entering this evenly distributed, but not over the cell wheel edge disks between the cell wheel and bearing plates runs through.

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8464/38 -5- July 22, 1982

An exemplary embodiment is described below with reference to FIG Drawings explained in more detail It shows:

Fig. 1 shows a longitudinal section through the device and

Fig. 2 is a plan view of the flat slide.

A cellular wheel is rotatably mounted in a housing 1. This cellular wheel consists of a drum 2, which with a shaft 3 is connected. The drum 2 carries evenly spaced radially extending wings 4, between which pockets 5 are formed. The τ disappears on its upper side Housing 1 has an inlet opening 6. In this inlet opening 6) which has a rectangular cross-section, a cross-section is also inserted rectangular funnel 7 which tapers in the direction of the inlet opening 6.

The sealing frame ends at the top in the area of a passage opening 8 of the lower one, which is also rectangular in cross section Part 9 of a sealing frame. Between this lower part 9 and the upper part 10 of the sealing frame is a Slider plate 11 out. The upper part 10 of the sealing frame has a passage opening 12, which is triangular or trapezoidal in cross section. The size of this passage opening 12 tapers thus in the closing direction 13 of the slide plate 11.

As can be clearly seen from FIG. 1, the edge overlaps the passage opening 12 of the upper part 10 of the sealing frame the edge of the passage opening 8 of the lower part 9 of the sealing frame.

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8464 / 3S _6- July 22, 1982

The slide plate 11 is actuated via a threaded spindle .14. This threaded spindle 14 is rotatably mounted on an end wall 15 of a spindle housing 16 and can be set in rotation via a hexagon socket 17. On the slide plate 11 is a threaded nut 18, which is screwed onto the threaded spindle 14.

The spindle housing 16 is sealed in the direction of the passage opening 8, 12 by a flat adjustable Stuff packing 19. The spindle housing is encapsulated and preferably a non-dairgeetelteii waist Compressed air connection on. As a result, an overpressure is generated in the spindle housing 16, which causes that no bulk material penetrates into it.

The setting of the slide plate 11 in relation to the passage opening 12 is selected so that in Dependence of the volume of the pockets 5 and the speed of rotation of the star feeder, the material flow through that released by the slide plate 11 Part of the passage opening 12 is such that the bulk material in the pockets 5 is still evenly distributed, but not over the cell wheel disks on the edge can pass between the star feeder and the end shields.

Claims (5)

Dipl.-Ing. Rolf Charter Fäieutanwalt Rehlingensüaße 8 - P.O. Box 260 D-8900 Augsburg 31
Telephone 08 21/3 6015-i-3 6016 Telex 533275 Pnsrsrftrrirfconio: Some no.i5t789-301 note; Company Andreas Jaudt S464 / 38 Augsburg, July 22, 1982 Expectations 1 «rotary valve with a rotary valve mounted in a housing, the wings of which in the Rotation of the bucket wheel from an upper inlet opening of the housing, where the material to be conveyed runs into the pockets between the wings, migrates to a further outlet opening of the housing, from where the material emerges in the pockets, thereby characterized in that a flat slide is arranged above the inlet opening (6), in which the size of the passage opening (1-) is adjustable and which is connected to the inlet opening (6) via a funnel (7). 2. rotary valve according to claim 1, characterized in that the slide plate (11) coverable passage opening (12) at least has an edge running obliquely to the direction of movement of the slide plate (11), u / obei with itself opening slide plate (11) the size of the passage opening (12) increases disproportionately. 3. rotary valve according to claim 2, characterized in that the passage opening (12) is trapezoidal or triangular and extends in the closing direction (13) of the slide plate (11) vet jungt, .2. 8464/38 -2- July 22, 1982 CH Ha 4. rotary valve according to one of claims 1 to 3, characterized in that the funnel f (7) in the direction of the inlet opening (6) rejuvenates. \ 5. rotary valve according to one of claims 1 to 4, ί characterized in that the slide sheet metal (11) can be actuated via a screw spindle (14) is. 6t rotary feeder according to claim 5 *, characterized in that the screw spindle (14) is arranged in an encapsulated spindle housing (16). 7 "Rotary vane feeder according to claim _t wherein ge - Flag with HNET that the spindle housing (16) has a DruckluftanschluQ. 8. rotary valve according to claim 6, characterized in that the spindle housing (16) is sealed off from the passage opening (12) by a flat, adjustable packing gasket (19) is. 9. rotary valve according to one of claims 1 to 8, characterized in that the Edge of the passage opening tiftg (12) above the slide plate (11) over the edge of the entry opening (6) protrudes below the slide plate (11). -3-