DE3426571A1 - Baffle-plate thickener - Google Patents

Abstract

A baffle-plate thickener (1) is depicted and described, which is composed of a multiplicity of long channel walls (2) which run parallel to each other and are joined to each other at each of the longitudinal edges, a multiplicity of long flow channels (3) which directly adjoin each other and run parallel to each other being formed by the channel walls (2). In a baffle-plate thickener (1) of the above-mentioned type, the external dimensions and the angle of inclination of the flow channels (3) can be adjusted without changing the base element if the connection of the channel walls (2) to each other is carried out via correspondingly long groove and tongue joints (4) designed as push joints. Such a baffle-plate thickener (1), moreover, can be easily assembled and easily dismantled again, is easily extendable and reduceable and is as uncomplicated as possible in production. <IMAGE>

Description

Gesthuysen "Ä" from Rohr -

. 3-

83.255.ne Essen, July 18, 1984

Patent application

of the Lord

Dr.-Ing. Ulrich Regehr Süsterfeldstrasse 65

5100 Aachen

concerning a

"Lamella clarifier"

Patent Attorneys · Dipl.-lng. Hans Dieter Gesthuysen · Dipl.-Phys. Hans Wilhelm von Rohr 4300 Essen 1, Huyssenallee 15, phone: 02 01/23 3917, telex: 08579990

& from pipe .: -: -

The invention relates to a lamellar clarifier consisting of a plurality of elongated, parallel to each other and at the longitudinal edges connected to each other in each case channel walls, wherein of the channel walls a plurality of elongated, directly adjoining, parallel to each other running flow channels is formed.

A lamellar clarifier of the type explained above is the applicants from the Known in practice. In this known lamellar clarifier are each one A plurality of channel walls arranged adjacent to one another to form a wave-like shaped plate and made in one piece with one another. Several of these wave plates are against each other by half a wavelength offset, arranged next to one another and with one another via the channel walls of adjacent corrugated plates that come to rest against one another tied together. For this purpose, these specific channel walls are glued, welded, riveted, screwed or otherwise firmly connected to one another. The known Lamella clarifier consists of metal or, more recently, plastic, with the individual wave plates that make up the known lamellar clarifier is composed, then, for example, can be extruded.

In the known lamellar clarifier, from which the invention is based, the External dimensions and the angle of inclination of the flow channels after manufacture of the wavy plates set once and for all. There are no longer any extensions or reductions in the Lame1 steering wheel possible. In addition, the production of the known lamellar clarifier is due to the fixed connections to be made between the individual wave plates, in particular welded connections or the like, not entirely unproblematic.

The invention is based on the prior art explained above now the task of specifying a lamellar clarifier with the external dimensions and the angle of inclination of the flow channels are adjustable without changing the basic element, which is also easy to assemble and

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can be dismantled again, easily expanded and reduced as well as in production is as inexpensive as possible.

The lamellar clarifier according to the invention, in which the previously indicated task is solved, is characterized in that the connection of the channel walls to one another via correspondingly elongated, designed as sliding connections Tongue and groove connections are made. The lamellar clarifier according to the invention is therefore composed of a large number of similar basic elements, in the extreme case these basic elements of the same type are the channel walls themselves. The basic elements are connected to each other via as sliding connections trained tongue and groove connections connected, so that a new basic element to a plurality of already existing, interconnected Basic elements can be attached simply by making a groove (or Feather) of the new basic element is pushed into a tongue (or groove) of one of the existing basic elements in the longitudinal direction. The grooves and tongues the tongue and groove connections expediently extend over the full length of the channel walls. They are also appropriately so designed that on the one hand the force required when inserting is not too great, on the other hand a certain clamping effect is achieved to a to ensure good cohesion of the basic elements with one another.

With the construction according to the invention, a lamellar clarifier can be very easily assemble and disassemble again, with such a lamellar clarifier can be expanded and reduced to practically any size. The angle of inclination can also be easily adjusted without change of the basic element. The manufacture of the Lame1lenklärers is both from the basic element - easily extrudable in the case of plastic - and from the composition of the basic elements with very little effort tied together.

There are now various ways of using the lamellar clarifier according to the invention design and develop, which is explained in the following only by way of example shall be.

Gssthuyseri & von Rohr.:.:.

With regard to the tongue and groove connections, it is advisable to use a dovetail-like connection Design to choose. This allows a combination of easy insertion on the one hand and good one in a particularly expedient manner Clamping effect on the other hand.

It has previously been explained that the basic idea for the inventive Lame1lenklär consists of individual, relatively small and in to build up basic elements that can be attached in all directions perpendicular to the longitudinal direction of the flow channels and at the same time a mechanically extremely strong one To ensure connectivity of the basic elements. But now it is the case that an expansion or reduction in size of the lamella clarifier according to the invention per se is always necessary and expedient only around at least one "flow channel". A flow channel is limited by more than one channel wall, so that one can also firmly connect several channel walls to one another to form the basic elements explained above. Recommended for this an inventive embodiment of the lamella clarifier, which thereby is characterized in that the channel walls are made in one piece with one another in groups and that only on those for connection with adjacent groups Longitudinal edges provided by duct walls Grooves or tongues of the tongue and groove connections are provided.

The cross-sectional shape of the flow channels formed by the channel walls is in the known lamellar clarifier, from which the present invention is based, hexagonal and thus to a certain extent honeycomb. Basically, of course other cross-sectional shapes are also conceivable, for example square cross-sections of the flow channels or triangular cross-sections. In the following, however, without this being intended to mean a restriction, the invention Lamella clarifier explained using the special case with hexagonal flow channels.

In a lamellar clarifier of the type in question, the hexagonal one Flow channels are provided, it is recommended that the channel walls in honeycomb-like To arrange hexagons and each forming a hexagon

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Execute channel walls in one piece with one another. A "group" of canal walls then, to a certain extent, represents a complete flow channel.

In the previously explained embodiment of a lamella clarifier according to the invention would have to come to rest flat against each other on all sides without further measures. In other words, were double channel walls on all sides between the respective flow channels exist. This is of course complex in terms of material and production. If you only want simple channel walls between the flow channels reach, so must each complete honeycomb-like hexagons of the invention Lamella clarifier arranged at an appropriate distance from each other and there must be separate channel walls between the hexagons to complete the gaps to form their own flow channels be. If the latter effect is to be achieved without having to have different types of basic elements, it is advisable to integrate the separate channel walls into the honeycomb-like hexagons. For this purpose, an embodiment is proposed according to the invention, which is characterized in that with the forming a honeycomb-like hexagon Channel walls each on at least one of the for connection with neighboring Hexagons provided longitudinal edges a further channel wall made in one piece and on its free longitudinal edge with a groove or a tongue the tongue and groove connection is provided.

While in the embodiment explained above on one side of a honeycomb-like Hexagon protrudes a separate channel wall, on the free longitudinal edge a groove or a tongue is arranged, must be on the opposite A complementary tongue or groove can be provided on the longitudinal edge of the hexagon so that an additional base element can be attached to the base element.

Another embodiment of the invention explained above, which is characterized by special symmetry, is characterized in that two further channel walls on exactly two opposite, for connection arranged with adjacent hexagons provided longitudinal edges and on

Gssth'jysen & von Rohr. ...

about half the normal width of the channel walls are shortened and that a groove is provided on the free longitudinal edge of one channel wall and a tongue of the tongue and groove connection is provided on the free longitudinal edge of the other channel wall.

On opposite sides of a honeycomb-like hexagon Channel walls constructed in one piece with one another therefore project "half" channel walls with edge-side grooves or tongues. The connection of a such "half" channel wall with the corresponding "half" channel wall of the adjacent hexagon then allows a full-fledged partition wall to arise as a channel wall of an intermediate flow channel, the other one Channel walls are formed by the adjacent channel walls of the adjacent flow channels.

The formation of honeycomb-like hexagons from one-piece design Channel walls have the advantage of being able to withstand great mechanical loads. To save even more material, however, one canal wall can be added to each Omit the hexagon, but this is at the expense of the mechanical strength. This embodiment of the lamella clarifier according to the invention is characterized in that a channel wall of a hexagon is formed by the opposite channel wall of the adjacent hexagon.

In the case of channel walls made in one piece with one another in groups, in particular with honeycomb-like hexagons as basic elements of the invention Lamella clarifier, a particularly preferred embodiment is characterized in that one on a duct wall of an adjacent Hexagon flat channel wall of a hexagon coming to rest on its longitudinal edges two grooves open away from one another or pointing away from one another Tongues and the opposite channel wall has two tongues pointing towards one another or grooves open towards one another on their longitudinal edges.

Finally, the construction of the lamellar clarifier according to the invention allows a particularly simple attachment of covers for the outside, inside

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namely to cover the outer sides of the plate-shaped, with the channel walls cover walls which can be connected via tongue and groove connections are likewise provided. The outwardly open flow channels become through these cover walls Covered at the edge of the lamellar clarifier and form flow channels of half the flow cross-section closed. It is advisable to place the cover walls on their outside to ensure further expansion options also to be equipped with grooves or tongues for tongue and groove connections.

With regard to the choice of materials, it has been shown that the inventive Lame1lenklär itself because of the structure of, in special cases, closed on all sides, honeycomb-like basic elements are particularly suitable for production from thermoplastic material.

In the following the invention is based on only one embodiment illustrative drawing explained in more detail; it shows

Fig. 1 in a perspective view, very schematically, an inventive Lamellar clarifier,

FIG. 2 shows a basic element for the construction of a lamella clarifier according to FIG. 1 in cut and

3 shows a groove and a tongue for forming a tongue and groove connection for a basic element according to FIG. 2 for the construction of a lamella clarifier according to FIG. 1.

The lamellar clarifier shown very schematically and in overview in FIG consists of a large number of elongated, parallel to each other and channel walls 2 connected to one another at the longitudinal edges, wherein of the channel walls 2 a plurality of elongated, directly adjacent flow channels running parallel to one another are formed. The connection of the channel walls 2 to one another is carried out accordingly elongated tongue-and-groove connections designed as sliding connections

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bindings 4. These tongue and groove connections 4 are for the sake of simplicity in Fig. 1 drawn or indicated only at a few places.

Fig. 2 shows more clearly that in the illustrated embodiment of a lamella clarifier 1, the tongue and groove connections are dovetailed are trained. Furthermore, Fig. 2 shows that the channel walls 2 are made in groups with one another in one piece and that only to the Connection with adjacent groups of channel walls 2 provided longitudinal edges grooves 5 or tongues 6 of the tongue / groove connections 4 are provided.

More precisely, the channel walls 2 are in the illustrated preferred exemplary embodiment arranged in honeycomb-like hexagons 7, one of which is shown in cross section in FIG. Each forming a hexagon 7 Channel walls 2 are made in one piece with one another. With the channel walls 2 forming a honeycomb-like hexagon 7, two are connected to adjacent hexagons 7 provided longitudinal edges each have a further channel wall 2 made in one piece. These two further channel walls 2 are shortened to about half the normal width of the corresponding channel walls 2. A groove 5 is provided on a free longitudinal edge of one duct wall 2, while a spring 6 is provided on the free longitudinal edge of the other duct wall 2. The spring 6 of one channel wall of such a honeycomb-like Hexagon 7 can be in the spring 5 on the corresponding channel wall 2 of the neighboring Hexagon 7 are inserted, whereby a separate, between the hexagons 7 extending channel wall 2 full width is formed.

2 shows a particularly preferred embodiment of a basic element for a lame1 steering clearer 1 according to the invention, as specially designed Tongue and groove connections 4 in Fig. 2 are provided on the right and left on the edge. This preferred embodiment is characterized in that one on a channel wall 2 of an adjacent hexagon 7 is flat to the plant Coming channel wall 2 of a hexagon 7 on its longitudinal edges two mutually open grooves 5 or apart pointing tongues 6 and the opposite channel wall 2 at its longitudinal edges two towards each other

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has pointing tongues 6 or grooves 5 open towards one another. The two grooves 5 on the left in FIG. 2 cooperate with one another to form a dovetail-like groove, while the two tongues 6 on the right in FIG. 2 cooperate with one another to form a corresponding dovetail-like tongue 6.

3 shows, in an enlarged illustration, a groove 5 and a corresponding one Spring 6, both dovetail-shaped. It can be seen that the spring 6 widens slightly towards the dovetail ends. With this construction, the desired moderate clamping effect of the corresponding Tongue and groove connection 4 achieved.

Finally, FIG. 1 shows a particularly preferred embodiment of a Lame1lenklärers 1 according to the invention, which is characterized in that for Covering the outer sides plate-shaped cover walls 8 which can also be connected to the channel walls 2 via tongue and groove connections 4 are provided and that the cover walls 8 also have tongue and groove connections on their outer sides 4 are equipped.

Claims (10)

Gestivjyserj & von Rohr "- - ■ - Patent claims: .1.' Lamella clarifier, consisting of a large number of elongated, channel walls which run parallel to one another and are connected to one another at the longitudinal edges, with a plurality of the channel walls is formed by elongated, directly adjoining, parallel to each other running flow channels, thereby characterized in that the connection of the channel walls (2) to one another via correspondingly elongated, as sliding connections trained tongue and groove connections (4) takes place. 2. lamellar clarifier according to claim 1, characterized in that the Tongue and groove connections (4) are dovetail-like. 3. lamellar clarifier according to claim 1 or 2, characterized in that the channel walls (2) are made in one piece with one another in groups and that only on those for connection to adjacent groups of channel walls (2) provided longitudinal edges grooves (5) or tongues (6) of the tongue / groove connections (4) are provided. 4. lamellar clarifier according to claim 3, characterized in that the channel walls (2) arranged in honeycomb-like hexagons (7) and the duct walls (2), which each form a hexagon (7), are made in one piece with one another are. 5. lamellar clarifier according to claim 4, characterized in that with the channel walls (2) forming a honeycomb-like hexagon (7) on at least one of the channels provided for connection to adjacent hexagons (7) Longitudinal edges of another duct wall (2) made in one piece and with a groove (5) or a tongue (6) on its free longitudinal edge the tongue and groove connection (4) is provided. Gösfhuysen & vcn Rohr - 6. lamellar clarifier according to claim 5, characterized in that two more Channel walls (2) arranged on exactly two mutually opposite longitudinal edges provided for connection to adjacent hexagons (7) and are shortened to about half the normal width of the channel walls (2) and that at the free longitudinal edge of one channel wall (2) one Groove (5) and a tongue (6) of the tongue and groove connection (4) is provided on the free longitudinal edge of the other duct wall (2). 7. lamellar clarifier according to one of claims 4 to 6, characterized in that that a channel wall of a hexagon is formed by the opposite channel wall of the adjacent hexagon. 8. lamellar clarifier according to one of claims 3 to 7, characterized in that that one on a channel wall (2) of an adjacent hexagon (7) coming to rest flat channel wall (2) of a hexagon (7) on their Longitudinal edges of two grooves (5) open away from each other or tongues (6) pointing away from each other and the opposite channel wall (2) on their Has longitudinal edges two tongues (6) pointing towards one another or grooves (5) open towards one another. 9. lamellar clarifier according to one of claims 1 to 8, characterized in that that plate-shaped to cover the outer sides, with the channel walls (2) cover walls (8) which can also be connected via tongue and groove connections (4) are provided. 10. lamellar clarifier according to claim 9, characterized in that the Cover walls (8) are also equipped with tongue and groove connections (4) on their outer sides.