DE3418715A1 - Container for draining a wet product - Google Patents

Abstract

A container (2) is described which has an inside space (4) for receiving a wet product and for at least partially separating the liquid from the solid proportions of the wet product by means of at least one sieve-type draining element (10) which is arranged on at least one inside surface of the container (2) and is provided with a cleaning device and with an outflow device (12). In this case, the cleaning device has at least one wiping device (14) which rests against the surface of the sieve-type draining element (10) directed into the inside space (4), and which is arranged so as to be displaceable at least along one part of said surface. <IMAGE>

Description

PATENT LAWYERS
Dr. rer. net. DIETER LOUIS
Dlpl.-Phys. CLAUS PoHLAU
Dipl.-ing. FRA ₁ JZ LOHSENTZ
Dlpl.-Phys.VVOLFC = ANG SEGETH

KESSLERPLATZ 1

NUREMBERG 20

SEVAR Entsorgungsanlagen GmbH
Scherdelstrasse 6th
8590 Marktredwit ^ z

Container for draining wet material.

The invention relates to a container with a capacity for receiving wet goods and at least partially Separation of the liquid from the solid parts of the wet material by means of at least one at least a drainable drainage element arranged on an inner surface of the container, which is provided with a cleaning device and is provided with a drainage device.

Such containers are, for example, in sand traps, in soot washing devices , in devices for wet slag removal, in sewage treatment plants, in sewers or the like. used to separate the solid parts from the liquid parts of the wet material. Part of this separation takes place immediately after the wet goods have been filled into the container's holding space. The flow of the filtrate through the sieve-like drainage elements creates a suction, by means of which the solid particles are transported to the drainage element and stick to the sieve-like drainage element. This sticking of the solid parts ■

however, leads to the fact that the screen-like drainage elements are particularly during the filling of the wet Being able to add solid parts to good things.

The separation of the liquid from the solid parts is inversely proportional to the addition of the screen-like drainage elements, so that the separation effect after Filling of the wet material decreases more and more over time and the container for draining wet material becomes more and more ineffective. This applies in particular to drainage elements arranged on the bottom of a container.

The known containers of the type mentioned have behind the sieve-like drainage elements that can be arranged interchangeably on the bottom and on the side walls of the container, drainage devices on, through which the liquid fractions are emptied from the container. These containers point into the drain * '' facilities, i.e. cleaning facilities behind the sieve-like drainage elements. These cleaning facilities clean the drainage devices from the smallest solid particles, which the sieve-like drainage devices have penetrated. These known cleaning devices are rinsing-cleaning systems supply devices behind the sieve-like drainage elements arranged and effective. However, it is only with these known cleaning devices possible to a very limited extent, on the one in the Containers facing surface of a sieve-like drainage element adjacent solid parts to be removed from the drainage device and thus the separating effect of the screen-like drainage element to improve significantly.

The present invention is therefore based on the object of providing a container of the type mentioned at the beginning

EPO COPY

with a simple structure and in which the solid parts are separated from the liquid in the in The wet goods filled into the container are guaranteed to be safe at all times, so that there is optimal drainage of a wet good.

This object is achieved according to the invention in that the cleaning device has at least one wiping device which rests on the surface of the sieve-like drainage element directed into the receptacle space and which is arranged displaceably along at least part of this surface.

With this wiping device it is very easy to remove the filtrate during storage in the container wipe away solid particles from the screen-like drainage elements that are in contact with the webs of the drainage element, before the solid parts including the suspended particles the column of the drainage element add and interrupt the separation of the liquid from the solids and the suspended particles of the filtrate. In this way there is an improved separation of the liquid from the solid parts of a wet goods and a higher efficiency of a container, so that the container in much shorter time intervals can be loaded with wet goods as a known container of the type mentioned, in which the waiting times are comparatively long between individual filling operations because the risk is very great that clog the column of the sieve-like drainage elements from the inside of the container. Through this come the known ones

EPOCOPY J

Sieve-like drainage elements in the known containers are often not fully effective.

The wiper device can be arranged to be pivotable at least about a stationary bearing. Such a wiper device is particularly used in combination with drainage elements that are installed in the interior of the Containers are arranged on the outer surface. The stationary bearing can be arranged on the floor of the holding space and the one in the bearing can be pivoted mounted wiper device have the shape of a wiper blade and for actuation at least up to be extended to the upper filling opening of the container. The arrangement of the camp at the bottom of the 'Fassungsraumes-the container has the advantage that for Mopping device in the container no holes are required through which the mopping device is inserted must become. In this way, all sealing problems that arise in connection with a Cleaning device can result. Another advantage of this container is that the Wiper device only with a small area in comparison to its entire wiping area in each case lower, already dewatered solids zone back and forth is pivoted so that the forces required to pivot the wiper device are comparatively are small, even if a relatively large amount of solid matter has already accumulated in the container.

The wiper device can have at least two articulated wiper blades, which are shown in FIG spaced apart, stationary bearings are pivotably mounted. The arrangement of at least

two wiper blades articulated together are, has the advantage that a large surface area even with relatively small pivoting movements a sieve-like drainage element can be cleaned.

Instead of wiping devices in the form of wiper blades that run along at least a portion of the inner Surface of the screen-like drainage element are pivotable, the wiping device can at least have a wiper blade which is linearly displaceable on the sieve-like drainage element. Such a linear one Slidable wiper blade is in particular from above, i.e. from the filling opening of the container on a shifted sieve-like drainage element, which is arranged on a side wall of the outer surface of the container is. In this embodiment of the invention Containers, the effort required to move the wiper device is reduced to a minimum because the wiping device from above only up to the boundary layer between already dehydrated solid parts and refilled wet material needs to be pushed into the container in order to obtain a drainage element for example of the finest sluggish particles or of to clean coarser solid particles.

Especially when the container is repeated several times in a row is filled with wet material without the solid parts separated from the liquid each time in between are emptied from the container, the result is that the solid particles piled up on the bottom of the container serve as a natural filter layer above the sieve-like drainage element arranged on the floor, so that the downstream drainage element

EPQ COPY

Dead drainage device, for example, a water without Solid fractions can be taken.

In another embodiment of the invention, the wiping device can have at least one on the sieve-like Have drainage element linearly displaceable brush. This brush can also be used from top down on the sieve-like drainage

element along, or it can also be moved horizontally will. It is also possible to move several brushes horizontally at different heights to be arranged, with only the brushes of the superimposed horizontal zones on the the surface of the container arranged sieve-like drainage elements shifted horizontally be in which the separation between the solid parts and the liquid of the wet material is not yet complete, while in the underlying Zones in which the separation between the solid parts and the liquid part of the wet material already exists has taken place, the brushes can no longer be moved horizontally, so that solid particles are swirled and liquid parts are largely avoided and the solid parts of these lower zones can make a significant contribution to the filter effect. .

“A container according to the invention can be attached to its Have sieve-like drainage elements on the bottom and especially on its side walls. The above The wiping devices described are provided in particular on the drainage elements that on the lateral surface of the container are arranged because only along the boundary layer

EPO COPY

3A 18715

between already dewatered solids and still wet material to be dewatered is given, with the risk of clogging in the zone of the wet material Sieve-like drainage elements went through the oncoming solid particles. As already stated above has been, the risk of clogging the sieve-like drainage elements is then particularly great, when the wet material flows against the drainage elements at high speed as a result of the suction effect. The clogging of the drainage elements decreases with decreasing suction speed.

Due to this fact, it has proven to be advantageous that the at least one on a lateral surface the container arranged sieve-like drainage element is provided with a removable cover. With this Cover is covered das'Entwässerungselement while filling the container with wet material, so that a suction effect that is increased due to the filling turbulence is avoided and the risk of the sieve-like clogging Drainage element is reduced to a minimum.

The cover can consist of two plate-shaped devices spanning the drainage element, which lie tightly against one another and which have recesses next to one another, the one plate-shaped device mounted in a guide in relation to the second plate-shaped device and between two positions is designed so that the Aussparun gene of the two plate-shaped devices in one Position aligned with each other and the cover is open, and in the second position, the cover is closed is. The recesses can be designed as elongated holes, their in the direction of the lateral displacement the one plate-shaped device lying

copy

Transverse expansion is dimensionally adapted to the web remaining between adjacent recesses. One Such a design of the cover of a drainage element has the particular advantage that the displaceable plate-shaped device only needs to be moved a relatively small distance, which corresponds to the width of a web between adjacent Aussparun conditions.

The cover can be slid in lateral guides and pulled out of the upper filling opening of the container · Be arranged. It goes without saying that this cover must be designed such that a possibly the filling opening of the container spanning bar on the container covers pivotable can be stored, the movement of the cover in no way hindered.

In an advantageous manner, the cover can rest against the sieve-like drainage element with at least one Be combined wiper device. With this embodiment of the container according to the invention, avoidance a sinking effect during the filling of wet goods in the container combined with the cleaning effect of a wiper device, so that a total of Container results in which a wet good very quickly and extremely effectively in its solid parts and in the liquid fractions can be separated, whereby it is also possible / in particular, by means of the at the bottom of the container arranged sieve-like drainage element, for example, water with excellent quality obtain. This makes the use of a container according to the invention in a very wide range of possible applications guaranteed under optimal conditions.

Further details, features and advantages emerge from the following description of in the drawing schematically illustrated embodiments of the invention. Show it:

Fig. 1 is a longitudinal section through a container with sieve-like drainage elements and with wiping devices displaceable on the drainage elements,

FIG. 2 is a plan view of a container according to FIG. 1,

Fig. 3 is a longitudinal section through a container with Sieve-like drainage elements and with linearly displaceable on the drainage elements Wiping devices,

Fig. 4 is a side view of a drainage element with a cover made of two the drainage element spanning plate-shaped devices, and

5 shows a section along the section line V-V Fig. 4.

FIGS. 1 and 2 show a container 2 with a holding space 4 for receiving wet goods. how it occurs, for example, in sewage treatment plants, sewers or the like. The container 2 has 6 on the bottom and on the lateral surfaces 8 in its holding space 4 sieve-like drainage elements 10, which for at least partial separation of the liquid parts from the solid parts of the wet material are suitable.

EPO COPY

A drainage device 12 serves to remove the liquid from the wet material, which has been separated from the solid parts to let the container 2 run out.

The cleaning device has in this embodiment of a container 2 wiping devices 14, which consist of two hingedly connected to one another by means of a strut 16 There are wiper blades 18 which are pivotably mounted in stationary bearings 20. These camps 20 can be designed as rubber bearings that are attached to the bottom 6 or to the side walls of the container 2 and around which the wiper blades 18 in the by the Dotted lines indicated area on the surface of the sieve-like drainage elements can be moved.

While wet goods are being filled into the container 2 from above, i.e. from the filling opening 22, t flows the filtrate between the columns of the sieve-like drainage elements 10 through. The Solid parts separated from the liquid part of the wet material. The liquid flows through the gaps, while the solid parts adjoin the gaps that delimit the gaps Create the webs of the screen-like drainage elements and close the column so that it is already Shortly after the filling process, clogging, i.e. blockage of individual gaps in the sieve-like drainage elements can occur, which reduces the separating effect, or is finally completely interrupted. This reduction or interruption of the separation of the solid parts of the liquid portion of the wet material is also shown by the fact that from the drainage device 12 of the container 2 no more liquid emerges. When this condition is reached, the wiper device 14 is actuated, i. there are the wiper blades 18, which are on the drainage

EPO COPY

element 10 rest on the stationary bearing 20 pivoted. The solid parts that close the gaps are wiped off the drainage element, so that the suction flow through the gaps of the drainage element 10 and thus the separation of the liquid of the solid parts of the wet material again can take place. The process of filling a wet Good things in container 2 can be repeated more often; likewise, the wiper blades 18 can be pivoted repeatedly will.

Even if the wiper blades swivel repeatedly 18 there is no longer any separation of liquid and solid parts, which is shown by the fact that from the drainage device 12 no more liquid escapes, then wet material can be poured into the container 2 again be emptied from the container 2 without the layer of solid parts formed on the bottom 6 of the container 2 will. This bottom layer of solid parts is used in an advantageous manner for the refilled wet Good as a natural filter layer. This makes it possible, for example, through the on the bottom 6 of the container 2 arranged dewatering element 10 to obtain percolating water without solid fractions.

3 shows a longitudinal section through another embodiment of a container 2 with a holding space 4 which extends through a floor 6 and through around the floor 6 circumferential lateral surfaces 8 is formed, which is open at the top and has a filling opening 22 through which a wet material can be filled into the container 2. The container 2 points to its interior Jacket surfaces 8 for at least partial separation of the

EPO COPY

Solid parts from the liquid parts of a wet one Good sieve-like drainage elements 10, which are connected to a drainage device 12, through which the liquid separated from the solid parts can be discharged from the container 2.

In this embodiment of a container according to the invention 2 are the drainage elements arranged on the inside of the outer surface of the container 2 provided with a cover 24 which is divided into two parts for easier handling. The cover 24 is in lateral guides 26 displaceable and pulled out of the filling opening 22 of the container 2. The plate-shaped Covers 24 have a wiping device 14 in the form of a brush 28 on their lower edge.

While the wet goods are being filled into the container ■ · 2, the screen-like drainage elements 10 remain through i covers the covers 24, so that during the filling of the wet material no separation of the liquid components from, the solid parts of the wet material takes place. This ensures that the solids and time delayed at least partially also the suspended particles settle and after releasing the sieve surface by moving of the covers 24 no obstruction of the filter surfaces of the sieve-like drainage elements 10 occurs.

After filling the wet goods, the covers are 24 pulled up along the drainage elements 10, which combined with the covers 24 Brushes 28 simultaneously clean the drainage elements 10, so that an excellent separation of the liquid parts from the solid parts of the wet Good results. '

EPO COPY

FIGS. 4 and 5 show a section of a cover 24, which consists of two of the drainage element 10 spanning plate-shaped devices 3 0 and 32 consists. The one plate-shaped device 30 is attached to the drainage element 10 and the second plate-shaped device 32 is close to the plate-shaped Facility 30 at. The two plate-shaped devices have recesses 34 and 36, the a plate-shaped device 32 in relation to the second plate-shaped device 30 in a guide 38 is mounted and designed to be displaceable between two positions in such a way that the recesses 34 and 36 of the both plate-shaped devices 30 and 32 in one position are aligned with one another and the cover 24 is open. This open position of the cover 24 can be clearly seen from FIG.

The plate-shaped device 32 can be used for closing the cover 24 can be moved laterally in the guide 38.

The recesses 34 and 36 in the plate-shaped devices 30 and 32 are designed as elongated holes, as can be clearly seen from FIG. 4. The direction of the lateral displacement of the plate-shaped device 32 lying transverse extent of the elongated holes is at the remaining between adjacent recesses 34 and 36 Web 38 of the plate-shaped devices 30 and 32 adapted in terms of dimensions. Have in an advantageous manner the webs 38 have a width which corresponds to the transverse extent of the elongated holes, or which is slightly larger than the transverse extent of the elongated holes. Due to this training needs to open or close the cover 24 the plate-shaped device 32 laterally only around

EPO

the width of the webs 38 to be shifted.

With the simply constructed container 2 according to the invention, there is therefore a very good separation of the solid parts possible from the liquid of a wet good. This advantageously makes up a considerable proportion of the weight of the wet goods in the form of the liquid released from the container 2, whereby the filling weight, resp. the total weight of the container is reduced and the transport of the container becomes easier. Besides, it is with the container 2 according to the invention possible with a comparatively rapid separation to achieve such a liquid quality that it does not more it is necessary to connect additional filters.

EPO COPY

Claims (12)

PAITNTAMWSLTE Dr. rer. net. DIETER LOUiS Dlpl.-Phys. CLAUS PoHLAU Dipl.-Ing. F1JAHZ LOHSENTZ Dlpl.-Phys.WOLFC ANG SEGETH KESSLERiHATZ 1 NUREMBERG 20 SEVAE Entsorgungsanlagen GmbH Scherdelstr. 1 Marktredwitz claims: 1. Container with a receptacle for collecting wet Good and for "at least partial ^ s ^ n separation ^ of the liquid from the solid dividers of the wet < Gutens by means of at least one screen-like arranged on at least one inner surface of the container Drainage element, which is provided with a cleaning device and a drainage device is, characterized, that the cleaning device has at least one wiper device (14) which is based on the in the Fassungsraam (4) in directed surface of the sieve-like drainage element (10) and which is arranged displaceably along at least part of this surface. 2. Container according to claim 1, characterized in that the wiping device (14) is at least about a stationary one Bearing (20) is pivotably arranged. EPOCOPY df 3. Container according to claim 2, characterized in that that the fixed bearing (20) is arranged on the bottom (6) of the holding space (8) and the bearing (20) is pivotable mounted wiper device (14) has the shape of a wiper blade (18) and for actuation at least bj.s to the upper filling opening (22) of the container ("2) - is extended. 4. Container according to claim 2 or 3, characterized in that the wiping device (14) has at least two has articulated wiper blades (18), which are fixed in spaced apart Bearings (20) are pivotably mounted. 5. Container according to claim 1, characterized in that the wiper device (14) has at least one the sieve-like drainage element (10) has linearly displaceable wiper blade (18). 6. Container according to claim 1, characterized in that the wiping device (14) at least one linear on the sieve-like drainage element (10) having displaceable brush (28). 7. Container according to one of claims 1 to 6, characterized in that the wiping device (14) on at least one drainage element (10) is provided, which is attached to the outer surface (8) of the container (2) is arranged. 8. Container according to one of the preceding claims, characterized in that the at least one on a lateral surface (8) of the container (2) arranged drainage element (10) with a removable Cover (24) is provided. EPO COPY 9. Container according to claim 8, characterized in that the cover (24) consists of two the drainage element (10) spanning plate-shaped devices (30,32) which lie tightly against one another and have recesses (34, 36) next to one another, the one plate-shaped device (32) in relation to the second plate-shaped device (30) mounted in a guide (38) and so displaceable between two positions is designed that the recesses (34, 36) of the two plate-shaped devices (30,32) in one position are aligned with one another and the cover (24) is open, and in the second position the cover (24) is closed. 10.Container according to claim 9, characterized in that the recesses (34,36) are designed as elongated holes, whose in the direction of the lateral displacement the one plate-shaped device (32) lying transverse extent to the gene between adjacent Aussparun (36) remaining web (38) is dimensionally adapted. 11. Container according to claim 8, characterized in that the cover (24) slidable in lateral guides (26) and out of the upper filling opening (22) of the Container (2) is arranged to be pulled out. 12. Container according to one of claims 1 to 11, characterized in that that the cover (24) with at least one wiping device resting on the drainage element (10) (14) is combined. EPO COPY