DE102008018270B4 - Plastic containers - Google Patents

Abstract

Plastic container for wastewater treatment in small sewage treatment plants, comprising a modular structure with a base module (4), an at least two-part cylinder module (1) made of at least two essentially shell-shaped cylinder part segments (1a, 1b), which are connected to one another in a sealed manner, the cylinder part segments (1a, 1b ) viewed in the axial direction of the cylinder module (1) have the cross section of a pitch circle, and a cover module (8, 9), the modules (1, 4, 8, 9) by means of tongue and groove plug-in devices and / or flange devices (5 ) are connected to one another in a sealed manner, and having at least one separating device (2, 3, 7) connected to the base module (4) and / or the cylinder module (1) and / or the covering module (8, 9), the separating device (2, 3, 7) has at least one partition (2, 3) made of plastic material, which is at least partially sealed between two adjacent cylinder segments (1a, 1b), and wherein the floor module l (4) and / or the cover module (8, 9) each have a circumferential recess and / or at least one circumferential mounting flange projection in order to accommodate the cylinder module (1), the base module (4) for receiving the separating device (2, 3, 7) has at least two recesses and / or two pairs of parallel mounting flange projections which intersect in the center of the base module (4), the base module (4) having at least one sludge slide (10), the sludge slide (10) having a foamed solid body , and wherein the mud slide (10) is provided between two intersecting recesses or pairs of parallel mounting flange projections.

Description

The present invention relates to a plastic container, in particular for wastewater treatment in small sewage treatment plants.

Small wastewater treatment plants often work on the Wirbelschweb bed principle. For this purpose, usually three separate Klärkammern are provided, which are connected in series.

First, the effluent to be clarified enters the first chamber where solids in the effluent separate from the liquid by sagging to the bottom of the first chamber. In the second chamber, the liquid coming from the first chamber is subjected to the actual fluidized bed treatment. For this purpose, a carrier material is introduced into the second chamber, which floats freely in the liquid, and settle on the microorganisms to clarify the liquid biologically. In addition, air is introduced into the second chamber to provide the microorganisms with oxygen. This is usually done by means of a blower. Finally, the liquid coming from the second chamber in the third chamber is subjected to secondary clarification. From here, the treated wastewater can then seep, trickle or be discharged into a receiving water.

Usually have stationary small wastewater treatment plants on a concrete cylinder in which the clarification chambers are housed. The disadvantage here is that this concrete cylinder must be cast either on site, or can only be transported by heavy transport equipment. For setting up the concrete cylinder on site then other heavy equipment, such. B. a correspondingly resilient crane required.

From the DE 197 28 433 A1 For example, a modular water tank for a small wastewater treatment plant is known, which has a circular bottom plate, a tubular wall and a lid. All parts are molded from plastic, wherein the cylinder is an integral component, in which a gap between two concentric sheaths is foamed with plastic foam.

Since the cylinder in the aforementioned document is made of plastic, it can be transported without the use of heavy transport equipment, mounted on site together with the other components of the water tank and sink, for example, in the ground. However, it is also disadvantageous in this modular water tank that the cylinder is difficult to handle due to its volume and in particular to transport.

Furthermore, from the DE 40 06 382 a bioreactor for performing microbial processes at the laboratory and pilot plant scale and for the development of process-adapted technical bioreactors known. The reactor is modular, with each module resembling the shape of a hollow cylinder. Using the individual modules, the bioreactor can be assembled along an axis.

Furthermore, from the US Pat. No. 6,328,890 B1 a clarifier with three components, namely a lid and two sub-containers, known. Each sub-container is integrally formed and has a bottom and a circumferentially closed side wall with two side wall portions, one of which is semi-oval and the other rectangular flat.

It is therefore an object of the present invention to provide a plastic container, in particular for wastewater treatment in small sewage treatment plants, which is easy to transport and which makes efficient use of the available transport space.

This object is achieved by a plastic container according to the features of patent claim 1.

Due to the at least two-part design of the cylinder module, it is possible to transport the cylinder module in individual components, the individual components are easier to move due to their lower weight than the entire cylinder module. The individual components of the cylinder module also make it possible to use the available transport space more efficiently. Thus, the components of the plastic container according to the invention can be transported for example in a van.

The modules are connected to each other by means of tongue and groove plug-in devices and / or flange devices sealed. As a result, a simple construction of the plastic container is possible on site.

The cylinder module consists of at least two substantially cup-shaped cylinder part segments, which are sealed together. These cylinder part segments reduce the required transport space.

Preferably adjacent cylinder part segments overlap at least partially, preferably in the radial direction of the cylinder module. As a result, a reliable seal between adjacent cylinder part segments is made possible during construction.

The cylinder part segments are interconnected by means of a substantially T-shaped tongue-and-groove connector. This also allows a reliable sealing of the plastic container during construction on site. Furthermore, said plug-in devices can be assembled quickly and quickly released again.

Likewise, it is advantageous if the cylinder part segments are connected to one another by means of a substantially T-shaped groove-and-tongue plug-in device. This also allows a reliable sealing of the plastic container during construction on site. Furthermore, said plug-in devices can be assembled quickly and quickly released again.

It is also advantageous if the cylinder part segments are connected to one another by means of a non-continuous screw connection, the screws of which are preferably provided mutually offset in height. The screw allows a reliable and re-releasable connection of the individual cylinder segments.

Preferably, the cylinder part segments are connected to each other by means of a claw connection. Even such a claw connection allows a reliable and re-releasable connection of the adjacent cylinder part segments.

Preferably, the floor module and / or the cylinder module and / or the cover module at least partially profiled edge regions to form integral mounting profiles. As a result, the sealing effect during assembly is further improved.

The plastic container has at least one separating device that can be connected to the floor module and / or the cylinder module and / or the cover module. By this separator, it is possible to divide the plastic container in its construction in different chambers. At the same time, since the separator is not firmly connected to the aforementioned modules, the transport of the components of the plastic container easier to perform.

The floor module and / or the cover module has in each case a circumferential recess and / or at least one circumferential mounting flange projection to receive the cylinder module, whereby a simple construction of the plastic container is possible on site.

The floor module has at least two recesses and / or two pairs of parallel mounting flange protrusions, which intersect at the center of the floor module, for receiving the separating device. This allows easy attachment of the separator on the floor module.

Furthermore, the cylinder module for accommodating the separating device has at least two mutually opposite recesses and / or two pairs of mutually opposite mounting flange projections which extend in each case in the axial direction of the cylinder module on its inner surface between an upper edge and a lower edge of the cylinder module. This allows easy attachment of the separator with the cylinder module.

It is particularly advantageous if the floor module and / or the cylinder module and / or the cover module and / or the separating device consists at least partially of fiber-reinforced plastic, whereby the stability of the plastic container is increased. Thus, the plastic container with the same stability can be made thin-walled and thus sparing raw materials.

It is particularly advantageous if the separating device is at least partially received sealed between two adjacent cylinder part segments. It is thus not necessary to provide individual cylinder segments, for example, with slots or other means to receive said separator. As a result, the production of the plastic container is simplified.

The separating device has at least one partition wall, preferably made of plastic material, which is at least partially received sealed between two adjacent cylinder part segments.

Preferably, part cylinder spaces formed by partitions in an interior of the plastic container, different clarification chambers, which are connected to each other at least in pairs for the exchange of unexplained, pre-clarified and clarified wastewater.

Advantageously, between components of the separating device and / or between adjacent cylinder sub-segments and / or between at least one partition wall and the floor module and / or between at least one partition wall and a cylinder part segment and / or between the cylinder module and the floor module and / or between the cylinder module and the cover module each provided at least one sealing device. This sealing device reliably prevents the discharge of waste water from the preferred plastic container.

In particular, it is advantageous if an adhesive is designed as a sealing device, whereby said components and modules without further Connecting elements can be fastened together.

The floor module has at least one mud chute through which solids contained in the wastewater can be collected at a defined location.

The mud slide has a foamed solid body. This allows a particularly lightweight floor module, the mud chute has at the same time a sufficient strength.

Preferably, at least one mounting flange projection is formed integrally with the floor module and / or the cylinder module and / or the covering module and / or at least one component of the separating device. Thereby, the number of parts from which the plastic container is constructed, further reduced.

Preferably, the separator has two partitions, which are inserted and sealed at their intersection point. This arrangement allows a simple and stable construction of the separator.

It is advantageous if the separating device has a node element which is sealed to at least two partitions. This also makes a reliable and stable sealing of the individual clarification chambers to each other possible.

Furthermore, it is advantageous if the node element is provided integrally on a continuous partition wall, whereby the number of components required for construction of the preferred plastic container is further reduced.

It is also conceivable that the node element is a separate component, which is connected in a substantially cross-shaped sealed with four partitions. Although this increases the number of components needed to construct the preferred plastic container, the components can be packed more easily and space-savingly for their transport.

Further preferred embodiments of the present invention are set forth in the further dependent claims.

The present invention will be explained in more detail below with reference to preferred embodiments in conjunction with the accompanying figures. In these show:

1 an overall view of a preferred plastic container,

2 an illustration of the main assemblies of the preferred plastic container 1 .

3 the connection of a partition wall with cylinder segment segments of a cylinder module of a preferred plastic container,

4 the connection of another partition with the cylinder module of a preferred plastic container,

5a - 5d various connections between the cylinder module and a bottom plate of a preferred plastic container, or between partitions and the bottom plate,

6a and 6b various connections of the partitions in the center of preferred plastic containers,

7a - 7e various connections of cylinder part segments preferred plastic containers, and

8a and 8b various connections between partitions and cylinder part segments preferred plastic container.

In the 1 and 2 is a preferred plastic container, which is particularly suitable for wastewater treatment in small sewage treatment plants, shown in perspective. 1 shows an overall view of the composite, preferred plastic container, while 2 a representation of the main components of the plastic container 1 shows.

A plastic container, which is suitable for wastewater treatment in small wastewater treatment plants, on the one hand requires a sufficiently large volume to receive wastewater. Likewise, it is necessary that the plastic container is sufficiently liquid-tight and chemically resistant to prevent leakage of the wastewater. Also requires such a plastic container due to its size sufficient mechanical stability to counteract on the one hand the prevailing pressure inside the wastewater, and on the other hand to withstand external pressure loads when the plastic container is sunk, for example, in the ground. Preferably, the plastic container is suitable for the Wirbelschwebebett method.

The in the 1 and 2 Plastic container shown is modular and has a floor module 4 , a cylinder module 1 and a cover module 8th . 9 on, wherein the modules are sealed together. The cover module 8th . 9 preferably consists of a cone element 8th and a removable lid 9 , around For example, make a visual inspection inside the plastic container or maintenance in the small wastewater treatment plant.

The cylinder module 1 is an at least two-part cylinder module consisting of at least two substantially cup-shaped cylinder part segments 1a . 1b , preferably semi-cylinders, which are sealed together. In the axial direction of the cylinder module 1 considered, these cylinder part segments have 1a . 1b the cross section of a pitch circle of for example 60 °, 90 °, 120 ° or 180 °. Accordingly, it is possible the cylinder module 1 out 2 . 3 . 4 or for example 6 To produce cylinder part segments.

However, it is also conceivable, especially if the height of the cylinder module 1 larger than its diameter, the said cylinder module 1 to produce from at least two annular and axially sealed together cylinder components. Cup-shaped cylinder segment 1a . 1b can also be connected in the axial direction with other shell-shaped cylinder part segments. This also reduces the volume required for transport.

Preferably, the cylinder part segments 1a . 1b temporarily fixable with each other and / or substantially non-destructively detachable again.

As in 2 further shown, the preferred plastic container in its interior a separating device 2 . 3 . 7 on, which preferably divides the plastic container into four clarification chambers. The separator 2 . 3 . 7 consists for example of a continuous, substantially flat partition 2 , as well as two other partitions 3 . 3 that with the continuous partition 2 , For example by means of a node element 7 are connected. Thus corresponds to a length of the continuous partition 2 in the 2 illustrated embodiment substantially the diameter of the cylinder module 1 while a length of one of the other partitions 3 . 3 essentially the radius of the cylinder module 1 equivalent. The height of the partitions 2 . 3 is substantially the same and approximately corresponds to the height of the cylinder module 1 ,

Furthermore, in 2 the floor module 4 of the preferred plastic container shown. This floor module 4 has at least one mud slide 10 on, by the solids settling from the wastewater collected in the respective chamber of the plastic container and can be passed to a defined location.

It is possible the mud slide 10 as a separate component and with the floor module 4 connect to. However, it is also conceivable, the mud slide 10 and the floor module 4 as an integral component, for example as an injection-molded plastic component. At the mud slide 10 it is generally a foamed solid body, wherein the stability of the hollow body is further increased by the foaming. As in 2 indicated, is the mud slide 10 between two intersecting recesses or pairs of parallel mounting flange protrusions of the floor module 4 intended. This will be discussed in detail below.

The individual modules 1 . 4 . 8th . 9 the plastic container are by means of tongue-and-groove plug-in devices and / or flange devices 5 connected with each other. For this purpose, the floor module 4 and / or the cylinder module 1 and / or the cover module 8th . 9 at least partially profiled edge regions for the formation of integral mounting profiles.

Regarding 2 has the floor module 4 and the cover module 8th . 9 a pair of outer peripheral peripheral flange flange protrusions. These substantially circular mounting flange projections are parallel to each other, so that in their space the wall of the cylinder module 1 is added during assembly of the plastic container. Also a single mounting flange projection per module is possible. In addition to or instead of the mounting flange projections, it is also conceivable to have a recess in the floor module 4 and / or in the cover module 8th . 9 provided.

In addition, the in 2 illustrated floor module 4 continue two pairs of parallel mounting flange protrusions, located in the center of the floor module 4 , preferably at an angle of 90 °, intersect. This results after receiving the partitions 2 . 3 between said mounting flange protrusions of the floor module 4 four essentially equal sized clarification chambers.

However, it is also possible, for example, to provide a plastic container with less than four or more than four clarification chambers. Accordingly, it is possible that the mounting flange protrusions in the center of the plastic container, or at another point on the floor module 4 If necessary, cut the plastic container at an acute or obtuse angle. This structure depends, for example, on the number of desired clarification stages and the volume of the first clarification chamber in which the separation of the waste water into liquid and solids takes place. It is also conceivable that one or more chambers are provided with appropriate facilities, for example for the installation of ventilation devices, Abwasserleitungen- and overflows.

For example, the plastic container has only one continuous partition wall 2 on, this divides the interior of the plastic container substantially in two partial cylinder chambers, preferably in two half-cylinder chambers, which communicate with each other for the exchange of wastewater. It is also possible that the plastic container a plurality of substantially flat partitions 2 . 3 has, which divide the interior of the plastic container substantially in three, four or more partial cylinder chambers. Preferably arise third-cylinder or quarter-cylinder spaces. The partial cylinder chambers form different clarification chambers, which are connected to each other at least in pairs for the exchange of unclarified, preclarified and clarified wastewater.

Furthermore, the cylinder module 1 for receiving the partitions 2 . 3 the separator 2 . 3 . 7 have at least two opposing recesses, which are each substantially in the axial direction of the cylinder module 1 extend. Here are the outer edges of the continuous partition 2 and / or the other partitions 3 . 3 taken in order to make the individual sewer chambers as stable as possible.

Comparable to the floor module 4 also has the cover module 8th . 9 or the cone element 8th a pair of circumferential mounting flange projections, between which the wall of the cylinder module 4 is recorded. In general, when connecting the individual cylinder segments 1a . 1b to the cylinder module 1 , in the connection of the cylinder module 1 with the floor module 4 and the cover module 8th . 9 , as well as the connection of the separator 2 . 3 . 7 with the cylinder module 1 and the floor module 4 to note that the joints are sealed to prevent leakage of sewage. Concrete measures for this will be explained below.

Instead of the recesses in the cylinder module 1 for receiving the separating device 2 . 3 . 7 it is also possible to provide mounting flange protrusions. Also, a combination of recesses and mounting flange projections is conceivable.

Preferably, the floor module exists 4 and / or the cylinder module 1 and / or the cover module 8th . 9 and / or the separating device 2 . 3 . 7 at least partially made of fiber-reinforced plastic. As reinforcing fibers are in particular glass fibers, carbon fibers or natural fibers, preferably bamboo fibers, into consideration. These fibers can also be combined with each other.

3 shows a plan view of a connection of a partition wall 2 the separator 2 . 3 . 7 with two adjacent cylinder segments 1a . 1b , The viewing direction is in the axial direction of the cylinder module 1 ,

At their lateral ends have the cylinder part segments 1a . 1b each substantially L-shaped flanges, located on the outside of the wall of the cylinder module 1 extend radially outward. Between these two flanges, the radially outer end of the partition extends 2 , On each side of the partition 2 is between the partition 2 and the L-shaped flange of the respective cylinder part segment 1a . 1b a sealing device 6 intended. In this sealing device 6 it may be, for example, a sealing profile, such as a rubber seal act. However, it is also possible to use sealant.

By the L-shaped flanges, the sealing surface between the cylinder part segments 1a . 1b and the partition 2 increases, whereby the sealing effect, in particular in connection with the sealing device 6 , is improved.

In 4 is a plan view of a connection of another partition 3 with the cylinder module 1 shown the plastic container. As in 3 the plan view takes place in the axial direction of the cylinder module 1 ,

In contrast to 3 has the cylinder module 1 or one of the cylinder part segments 1a . 1b on its inside two mutually parallel mounting flange projections, which extend into the interior of the cylinder module 1 hineinerstrecken. Both mounting flange protrusions are integral with the cylinder module 1 or the cylinder part segments 1a . 1b educated.

Between the two mounting flange projections is the additional partition 3 assembled. In order to improve the sealing effect in this area, is a substantially U-shaped sealing device 6 in the region of the radially outer end of the further partition wall 3 intended. As already related to 3 explained, this may be both a sealing profile and sealant.

Although this in the 3 and 4 not shown, the multi-part cylinder module 1 both the connections 3 as well as the connections 4 contain. However, it is also possible to use the cylinder module 1 only with connections 3 or only with connections 4 equip. It is also possible to make the connections between the cylinder module 1 and the respective partition 2 . 3 comparable to compounds of the respective partitions 2 . 3 or the cylinder module 1 with the floor module 4 perform like this with Reference to the following 5a to 5d is explained.

The 5a to 5d show top views of various connections between the cylinder module 1 and the floor module 4 or between partitions 2 . 3 and the floor module 4 , The viewing direction is therefore in the tangential direction of the cylinder module 1 , ie perpendicular to the radial direction of the cylinder module 1 ,

In the 5a illustrated connection between the floor module 4 and the partition 2 . 3 or the lower edge of the cylinder module 1 is comparable to the compound 4 , The floor module 4 has two parallel and mounting flange projections, between which the partition wall 2 . 3 or the cylinder wall is received. The pair of mounting flange protrusions extend into the interior of the plastic container. Both mounting flange protrusions are integral with the floor module 4 educated. In addition, to improve the sealing effect, a substantially U-shaped sealing device between the partition 2 . 3 or the cylinder wall and the floor module 4 intended.

In the 5b The connection shown differs from that in 5a shown compound in that only a mounting flange projection is provided, which extends into the interior of the plastic container inside. The sealing device 6 between the dividing wall 2 . 3 or the cylinder module 1 and the floor module 4 is provided is substantially L-shaped.

A one-sided mounting flange projection is particularly suitable when during operation of the plastic container in the small wastewater treatment plant is expected that on the opposite side of the flange there is an overpressure, which presses the partition against the flange. Also, a one-sided mounting flange protrusion is suitable when combined with, for example, other connecting means such as screws or rivets.

The connection in 5c is different from the connection in 5b in that the mounting flange projection as a separate flange device 5 is executed. Such a separate flange device 5 allows flexible positioning of the flange on the floor module 4 ,

Although this in 5c not shown, it is also possible, of course, two separate flange devices 5 to arrange parallel to each other, as for example in 5a for the integral mounting flange protrusions. Likewise, it is also conceivable, the separate flange device, or the separate flange devices on the inner wall of the cylinder module 1 or a cylinder part segment 1a . 1b provided.

In 5d is a continuation of the connection of 5a shown. In this case, the sealing device has additional sealing beads, which are located outside the gap defined by the two mounting flange projections. These additional sealing beads form a transition from the respective surface of the partition wall 2 . 3 or the cylinder module 1 to the surface of the floor module 4 or the flange. As a result, the sealing effect is widely improved, since it prevents liquid from penetrating into the sealing gap.

Although the 5a to 5d only on the floor module 4 The description of the preferred embodiment of the connection to the dividing walls applies 2 . 3 or to the cylinder module 1 equally for the cover module 8th . 9 ,

In the 6a and 6b are different connections of partitions 2 . 3 shown together.

In 6a is a plan view of a separate node element 7 shown. In the plastic container, this separate node element extends 7 essentially in the axial direction of the cylinder module 1 , It is particularly advantageous if the node element 7 along the central axis of the cylinder module 1 extends so that the partitions 2 . 3 in the center of the cylinder module 1 connected to each other. The separate node element 7 is substantially cross-shaped and has four recesses for receiving four partitions 2 . 3 on.

However, it is also conceivable, depending on the number of proposed Klärkammern and their distribution, a node element 7 with two, three or more than four recesses to use. The recesses are preferably each arranged at an angle of 90 ° to each other. However, the recesses may also be arranged in pairs different angles or at equal angles not equal to 90 ° to each other. For example, a substantially T-shaped node element is conceivable, of which the three recesses include angles of 180 °, 90 ° and 90 °. Also, for example, a node element with six recesses is conceivable, each including an angle of 60 °.

For the used sealing devices 6 This is already explained in the previous figures.

In 6b a node element is shown which is integral with the continuous partition wall 2 is trained. The node element has two opposite recesses in which the other partitions 3 . 3 sealed are included.

It is also conceivable, for example, to use two continuous dividing walls for the production of four clarification chambers, to provide each with a half-passage recess and to insert the two dividing walls in the area of this recess into each other and then to seal them.

In addition to what has been explained above, it is advantageous if the sealing device is in each case supplemented by an adhesive in order to permanently fix the engaged modules and components to one another, but other connecting means are also complementary to the sealing devices 6 possible, as described below with reference to the 7a to 8b is explained. Overall, it is advantageous if the functions of the adhesive and the sealing device are combined in one means, for example if the adhesive simultaneously has sealing properties and is used as a sealing device.

In the 7a to 7e are different connections of cylinder part segments 1a . 1b shown in plan views. The viewing direction is in each case in the axial direction of the cylinder module 1 ,

The 7a and 7b show the connection of two adjacent cylinder segments 1a . 1b by means of a T-spring 11 and a T-slot 12 , The T-spring 11 is characterized by two substantially claw-shaped projecting ends of the adjacent cylinder part segment 1a . 1b educated. In addition, there is between the adjacent areas of said cylinder part segments 1a . 1b a sealing device 6 intended. Through the T-slot 12 become the two cylinder segments 1a . 1b in the area of the sealing device 6 compressed and fixed together. The T-slot is formed substantially clamp-shaped for this purpose. The connection with T-spring 11 and T-slot 12 Can both on the outside of the cylinder module 1 ( 7a ) as well as on the inside of the cylinder module 1 ( 7b ) respectively. A simultaneous connection on the inside and outside is conceivable.

In 7c the connection of the two cylinder segments takes place 1a . 1b by means of a claw connection 13 by the respective ends of the adjacent cylinder part segments 1a . 1b partially overlap and interlock. In addition, a sealing device 6 intended. The claw connection 13 is in 7c on the inside of the cylinder module 1 formed, but may also be provided on the outside thereof.

The according to 7d overlapping areas of the cylinder part segments 1a . 1b are by means of a riveted joint 14 connected with each other. Additionally, in the region of each rivet, there are between the adjacent surfaces of the cylinder sub-segments 1a . 1b preferably each adapted in size sealing means 6 intended. To connect in 7d To make detachable, it is also conceivable to replace the rivet with detachable connection means, such as bolts and nuts.

In 7e is at a lateral end of the first cylinder part segment 1a a bead formed in a corresponding, substantially cup-shaped cross-section of the second cylinder part segment 1b intervenes. In addition, a sealing device 6 provided at the lowest point of the cup-shaped cross section.

The connection in 7e is caused by non-continuous screw connections 15 secured. Preferably, the screws are in the axial direction of the cylinder module 1 provided mutually and offset in height, so that in their enclosed angle, the sealing device 6 lock in.

The 8a and 8b show different connections between partitions 2 . 3 and adjacent cylinder part segments 1a . 1b , These figures illustrate a further development of the connection 3 represents.

Compared to 3 are the L-shaped flanges of the cylinder part segments 1a . 1b shorter. The sealing effect in this area is improved by using a bonding agent 16 . 17 is provided, which extends through each of the L-shaped flanges of the cylinder sub-segments 1a . 1b as well as through the partition 2 . 3 and the sealing devices 6 extends. For example, this connection means 16 . 17 to a releasable connection means, for. B. a combination of screws 16 and nuts 17 , However, non-destructively releasable connection means, such as riveted connections, also appear possible.

Although not shown in the preceding figures, it is also possible to combine different connecting means, such as tongue and groove plug-in devices and screw or adhesive connections.

The preceding embodiments relate to a plastic container, in particular for wastewater treatment in small sewage treatment plants, having a modular structure with a floor module 4 , an at least two-part cylinder module 1 and a cover module 8th . 9 , where the modules 1 . 4 . 8th . 9 are sealed together.

Claims (25)

Plastic containers for wastewater treatment in small sewage treatment plants, comprising a modular construction with a floor module ( 4 ), an at least two-part cylinder module ( 1 ) of at least two substantially cup-shaped cylinder part segments ( 1a . 1b ), which are sealed together, wherein the cylinder part segments ( 1a . 1b ) in the axial direction of the cylinder module ( 1 ) considered having the cross section of a pitch circle, and a cover module ( 8th . 9 ), whereby the modules ( 1 . 4 . 8th . 9 ) by means of tongue-and-groove plug-in devices and / or flange devices ( 5 ) are sealed together, and having at least one with the floor module ( 4 ) and / or the cylinder module ( 1 ) and / or the cover module ( 8th . 9 ) connected separating device ( 2 . 3 . 7 ), wherein the separating device ( 2 . 3 . 7 ) at least one partition wall ( 2 . 3 ) made of plastic material, at least partially between two adjacent Zylinderteilsegmenten ( 1a . 1b ), and wherein the floor module ( 4 ) and / or the cover module ( 8th . 9 ) each having a circumferential recess and / or at least one circumferential mounting flange projection to the cylinder module ( 1 ), the floor module ( 4 ) for receiving the separating device ( 2 . 3 . 7 ) has at least two recesses and / or two pairs of parallel mounting flange projections located in the center of the floor module ( 4 ), with the floor module ( 4 ) at least one mud slide ( 10 ), wherein the mud slide ( 10 ) has a foamed solid body, and wherein the mud slide ( 10 ) is provided between two intersecting recesses or pairs of parallel mounting flange protrusions. Plastic container according to claim 1, wherein adjacent cylinder part segments ( 1a . 1b ) on an outside and / or inside of the cylinder module ( 1 ) are interconnected. Plastic container according to claim 1 or 2, wherein adjacent cylinder part segments ( 1a . 1b ) at least partially, preferably in the radial direction of the cylinder module ( 1 ), overlap. Plastic container according to one of claims 1 to 3, wherein the cylinder part segments ( 1a . 1b ) by means of a substantially T-shaped tongue-and-groove plug-in device ( 11 . 12 ) are interconnected. Plastic container according to at least one of claims 1 or 4, wherein the cylinder part segments ( 1a . 1b ) by means of a non-continuous screw connection ( 15 ), whose screws are preferably provided mutually offset in height, are interconnected. Plastic container according to at least one of claims 1 or 5, wherein the cylinder part segments ( 1a . 1b ) by means of a claw connection ( 13 ) are interconnected. Plastic container according to at least one of claims 1 or 6, wherein the cylinder part segments ( 1a . 1b ) by means of a riveted connection ( 14 ) are interconnected. Plastic container according to one of claims 1 to 7, wherein the floor module ( 4 ) and / or the cylinder module ( 1 ) and / or the cover module ( 8th . 9 ) has at least partially profiled edge regions to form integral mounting profiles. Plastic container according to one of claims 1 to 8, wherein the cylinder module ( 1 ) for receiving the separating device ( 2 . 3 . 7 ) has at least two mutually opposite recesses and / or two mutually opposite mounting flange projections, preferably two pairs of mutually opposite mounting flange projections, which are substantially each in the axial direction of the cylinder module ( 1 ) on its inner surface between an upper edge and a lower edge of the cylinder module ( 1 ). Plastic container according to one of claims 1 to 9, wherein the floor module ( 4 ) and / or the cylinder module ( 1 ) and / or the cover module ( 8th . 9 ) and / or the separating device ( 2 . 3 . 7 ) consists at least partially of fiber-reinforced plastic. Plastic container according to claim 10, wherein as reinforcing fibers for the plastic glass fibers and / or carbon fibers and / or natural fibers, preferably bamboo fibers, are provided. Plastic container according to one of claims 9 to 11, wherein the separating device ( 2 . 3 . 7 ) at least partially between two adjacent cylinder sub-segments ( 1a . 1b ) is sealed. Plastic container according to claim 12, wherein a connecting means ( 16 . 17 ) is provided which extends through both a respective region of the two adjacent cylinder subsegments ( 1a . 1b ) as well as by an area of the separating device ( 2 . 3 . 7 ). Plastic container according to one of claims 1 to 13, wherein the partition wall ( 2 . 3 ) is essentially flat and has an interior of the Plastic container substantially in two partial cylinder chambers, preferably half-cylinder spaces, divided. Plastic container according to one of claims 1 to 14, wherein the separating device ( 2 . 3 . 7 ) a plurality of substantially flat partitions ( 2 . 3 ), which divide an interior of the plastic container substantially into three or four partial cylinder spaces, preferably third cylinder spaces or quarter cylinder spaces. Plastic container according to claim 14 or 15, wherein the partial cylinder chambers form different clarification chambers, which are connected to each other at least in pairs for the exchange of unexplained, pre-clarified and clarified wastewater. Plastic container according to one of claims 1 to 16, wherein between components of the separating device ( 2 . 3 . 7 ) and / or between adjacent cylinder sub-segments ( 1a . 1b ) and / or between at least one partition wall ( 2 . 3 ) and the floor module ( 4 ) and / or between at least one partition wall ( 2 . 3 ) and a cylinder segment ( 1a . 1b ) and / or between the cylinder module ( 1 ) and the floor module ( 4 ) and / or between the cylinder module ( 1 ) and the cover module ( 8th . 9 ) at least one sealing device ( 6 ) is provided. Plastic container according to one of claims 1 to 17, wherein components of the separating device ( 2 . 3 . 7 ) and / or adjacent cylinder part segments ( 1a . 1b ) and / or at least one partition wall ( 2 . 3 ) and the floor module ( 4 ) and / or at least one partition wall ( 2 . 3 ) and a cylinder segment ( 1a . 1b ) and / or the cylinder module ( 1 ) and the floor module ( 4 ) and / or the cylinder module ( 1 ) and the cover module ( 8th . 9 ) are each glued together by an adhesive. Plastic container according to claim 18, wherein the adhesive acts as a sealing device ( 6 ) is trained. Plastic container according to one of claims 1 to 19, wherein at least one mounting flange projection integral with the floor module ( 4 ) and / or the cylinder module ( 1 ) and / or the cover module ( 8th . 9 ) and / or at least one component of the separating device ( 2 . 3 . 7 ) is trained. Plastic container according to one of claims 1 to 20, wherein the separating device ( 2 . 3 . 7 ) two partitions ( 2 . 3 ), which are inserted into one another at their intersection point and sealed. Plastic container according to one of claims 1 to 21, wherein the separating device ( 2 . 3 . 7 ) a node element ( 7 ) having at least two partitions ( 3 . 3 ) is sealed. Plastic container according to claim 22, wherein the node element ( 7 ) integral to a continuous partition wall ( 2 ) is provided. Plastic container according to claim 22, wherein the node element ( 7 ) is a separate component that is substantially cross-shaped with four partitions ( 2 . 2 . 3 . 3 ) is sealed. Plastic container according to one of claims 1 to 24, characterized by its transportability in individual modules ( 1 . 4 . 8th . 9 ), in particular of the cylinder module ( 1 ) in at least two parts as a half cylinder.

Images