DE202017101623U1 - Separator with lifting beam conveying - Google Patents

Abstract

Separator device (1) for separating solids from liquids (2), comprising: a conveyor (4) for conveying a solids-containing liquid (2), a drive (6) for driving the conveyor (4) and at least a first receiving chamber (8a, 8b , 8c) disposed below the conveyor (4) and intended to receive downwardly flowing liquid (2a), characterized in that the conveyor (4) comprises at least one first screening unit (40) provided for in operation Forming filter cake (2b) on a first screen surface (44) of the first screen unit (40), and having a first support unit (42) corresponding to the first screen unit (40), the first screen unit (40) being supported by the drive (6) a first movement path (B) is movable, such that the filter cake (2b) by means of the first sieve unit (40) along a first portion (B1) of the first movement path (B) in a conveying direction tion (F) is movable, and along a second portion (B2) of the first movement path (B) by means of the first support unit (42) can be supported.

Description

The invention relates to a separator for separating solids from liquids, comprising a conveyor for conveying a solids-containing liquid, a drive for driving the conveyor and at least a first receiving chamber, which is arranged below the conveyor and is intended to receive downwardly flowing liquid.

The invention further relates to a Separatorsystem and a method for separating solids from solids-laden liquids with a Separatorvorrichtung of the type mentioned.

Separator devices of this type are also called filter devices or filtration devices. They serve to separate solids laden liquids into solids and liquid. In principle, such Separatorvorrichtungen find their application in numerous applications. A typical application is in the treatment of solids-laden liquids in agricultural production, for example in the treatment of manure, in the treatment of substrates for biogas plants, and digestate from biogas plants and the like.

Such Separatorvorrichtungen are preferably operated continuously, that is, a solids-containing liquid is fed to the Separatorvorrichtung, divided by the Separatorvorrichtung in solid on the one hand and liquid on the other hand, and the solid and the liquid are discharged. Separator devices can also be operated in a quasi-continuous mode of operation. In such an operation, the solids-containing liquid is filled into a container and then discharged through the separator either the liquid or the solid from this container, so that the solids or the liquid remains in the container. After a target specification in the form of a solid density or viscosity or in the form of falling below a solids content in the liquid has been achieved in this quasi-continuous operation, the solid or the liquid is withdrawn from the container, and the cycle can by refilling the container with a Restart fluid containing fluid. The invention is essentially directed to continuously operated Separatorvorrichtungen, but is also applicable for the quasi-continuous operation.

A general problem that occurs especially in continuous operation, but also in quasi-continuous operation, has its cause that for the purpose of separation of solid and liquid, the separation by means of filtration surfaces, which pass the liquid and retain the solids, in many Have proven and enforced applications technically compared to other separation principles. However, a disadvantage of this separation principle by means of filtration surfaces is that these filtration surfaces become clogged by the solids and, as a result, the permeability of the filtration surface during operation is continuously reduced. As a result of this clogging of the separating surface, that is to say clogging of a membrane, filter surface or sieve surface or the like, the permeability of the filtration surface for the liquid is reduced so much after a certain period of time that efficient operation of the separator device is no longer possible. This then necessitates the replacement of the filtration surface or requires cleaning the filtration surface of the solid particles deposited therein or deposited thereon.

One approach to solve this problem is to use as a filtration area so-called band filter, which are designed as endless belt and can be moved from a functional position in which they carry out a filtration task, in a position in which a cleaning, for example by Backwashing or the like is achieved. Such belt filtration systems are structurally complex, and the bandpass filters used therein are sensitive and expensive.

Such a filter device is for example off DE 34 04 110 A1 known. There is a vacuum filter for the separation of solids from liquids with a circulating at a distance from each other arranged wheels revolving conveyor described on the way to form a horizontal filter surface an endless row of trays is movably mounted, which are guided over a stationary vacuum channel. So that the filter cloth can be cleaned during operation and easy maintenance and repair are possible, it is provided that on the troughs on the filtration zone an endless filter cloth is placed and washing facilities are provided for this purpose outside the filtration zone, each trough in the direction of forward and has a seal at the rear and has a rimless design such that the row of contiguous troughs forms a common filter surface over the filtration zone, all troughs being connected to an elastic endless belt connected through holes for draining the filtrate in the vacuum channel and thereon are guided in a smooth manner.

To counter this problem has already been in DE 20 2015 101 414 the present applicant proposed to provide a Separatorvorrichtung, comprising a conveyor for conveying a solids-containing liquid, a first vacuum chamber, one of the first Vacuum chamber limiting first filtration area for separating the solids and the liquid, the conveyor having a plurality of mechanically interconnected chamber elements, each chamber element having a chamber interior having a chamber inlet opening for the solids-containing liquid and a first chamber outlet opening, wherein the chamber elements are movably guided such in that each chamber element is guided by means of the conveyor from a first position in which the chamber element is immersed in the solids-containing liquid to a second position, and wherein the movement of each chamber element between the first and the second position is guided such that the first chamber outlet opening abuts the first filtration surface. One realization of this solution is, for example, to attach box-shaped elements to a conveyor belt, which are then preferably moved upwards in an inclination to the horizontal, along an obliquely oriented filter surface, where they dip at the lower end in the liquid and this on the filtration surface "upward pull". In this case, the liquid can then pass through the filtration surface and a filter cake remains in the individual chambers. This is then transported by means of the conveyor belt.

While there is a problem of open design in the described bandpass filters, this problem is not inherent with chambered chamber separators, but it is still desirable to provide a simpler process that is particularly wear-free. Due to the friction of the individual chambers on the filtration surface, there is wear and this is especially high in solids laden liquids. The problem of high friction and thus of wear in press screw separators is particularly evident.

It is therefore an object of the present invention to provide a separator device for separating solids from liquids, which is improved in terms of wear, can work continuously, and avoids the problem of blockage of the filter openings.

This object is achieved by a Separatorvorrichtung of the type mentioned in that the conveyor has at least a first screening unit, which is intended to form a filter cake on a first screen surface during operation, and having a first screen unit corresponding first support unit, wherein the first screening unit is movable by means of the drive on a first movement path, such that the filter cake is movable in a conveying direction by means of the first screening unit along a first section of the first movement path, and can be supported along a second section of the first movement path by means of the first support unit. The first screening unit is preferably movable continuously along the first movement path.

The invention makes use of the knowledge that clogging or clogging of filters or sieves takes place, in particular, by means of a filter cake which builds up continuously. Furthermore, the invention makes use of the knowledge that wear is caused, in particular by friction of elements, between which solids-laden liquid is present, while these parts are moved relative to each other. According to the invention, it is provided that the screening unit is moved, and not another element which, for example, pushes along the screening unit in order to scrape off the filter cake, push it away or otherwise keep the screening unit free of the filter cake. The sieve unit according to the invention even transports the filter cake along the path of movement, namely along the first section of the trajectory. In the second section of the path of movement of the filter cake is supported by the support unit and therefore not moved further. Preferably, the first portion of the trajectory is substantially aligned in the transport direction, while the second portion of the trajectory is preferably aligned opposite to the transport direction. That is, on one way, the sieve unit takes the filter cake with it, while it settles on the way back on the support unit, and so can move back freely from the filter cake. As a result, there is a continuous transport of the filter cake. Clogging or clogging of the screen unit is avoided. At the same time no element is provided which scrapes or pushes along the screen unit, so that the wear is reduced.

According to a first preferred embodiment, the first sieve unit has a plurality of first sieve openings and the first support unit has a corresponding plurality of first support elements which can at least partially engage in the first sieve openings so that the first sieve openings are released in the first section of the first movement path, and in the second portion of the first trajectory, the first support members of the first support unit extend at least partially into the first screen openings to support the filter cake. The first support elements may be formed, for example, as projections, pins or the like. In the first section, the screening unit is preferably separate from the support element, for example a raised position. In the second section of the movement path, the screening unit is then, for example, at a lowered position, so that the support elements of the support unit are at least partially in, but preferably extend through the screen openings. In this way, on the one hand, the screen openings are freed of solids settling therein, on the other hand, an easy way is provided to support the filter cake while the screen unit is in the second section of the trajectory. The screen openings may in this case have any shape, in particular circular, oval, oblong, slot-shaped or the like. It can also be provided that the support unit is also at least partially movable, but such that the filter cake is supported as described. For example, the support unit is movable in the conveying direction, while the filter unit is in the second section of the movement path.

Furthermore, it is preferred that the first trajectory is a circular path. A circular path is a particularly simple path, and in particular the control of the drive is thereby simplified. The central axis of the circular path is preferably aligned substantially parallel to the screen surface of the first screening unit. This makes it possible to move the screen surface at least in sections, namely along the first section of the movement path, essentially in the direction of the conveying direction. In a particularly preferred embodiment, the conveyor is designed as Hubbalkenförderer.

According to a preferred embodiment, the conveyor has a second screen unit with a corresponding second support unit, wherein the second screen unit is movable on a second movement path. Alternatively, the first support unit is designed as a second screen unit. The second screening unit is preferably arranged in the conveying direction next to the first screening unit. This allows you to edit a wider area and thus produce a wider filter cake. The throughput is increased.

In an alternative, the second screening unit is arranged in the conveying direction downstream of the first screening unit. As a result, the total filter length can be increased, whereby the filter cake more liquid can be withdrawn, and thus the filtering is more effective overall.

Particularly preferably, the second movement path is a circular path, and the first and second screening unit are movable in phase along the respective circular path. If the first and second screening units are arranged next to one another in the conveying direction, it is preferred that the first and second circular paths are identical. In a successively arranged alignment of the first and second screen unit is preferred that the circular paths coincide in their geometry, but are offset axially parallel, in the conveying direction. On the one hand, a continuous displacement can be achieved by a phase shift, in that the conveying cake is conveyed by means of the first screening unit, while the second supporting unit engages and vice versa. Particularly preferred is the phase shift in about 180 °. A particular advantage here is that when the first screening unit is moved upwards, the second screening unit moves downwards. This makes it possible to use the gravity of the first screening unit to move the second screening unit at least partially upwards. As a result, the energy efficiency is increased because less energy is needed to move the first and second screening units along the respective circular path.

In a preferred embodiment, the first screening unit has a plurality of spaced and parallel bars defining a plurality of slot-shaped screen openings. The individual beams are preferably formed substantially identical and each arranged at the same distance from each other. The spacing of the bars defines the screen openings, which are then slit-shaped in this embodiment. Preferably, the second screen unit also has a plurality of spaced and parallel bars which define a plurality of slot-shaped screen openings. Preferably, the first and second screening unit are formed substantially identical.

In this embodiment, preferably also the support elements of the support unit, preferably the first support elements of the first support unit and the second support elements of the second support unit formed as a beam, wherein the width of the bars of the support unit is slightly smaller than the wire width of the screen openings. As a result, the first and second screen units can be moved substantially contactlessly relative to the first and second support units. Preferably, a distance between the respective beams of the screen unit and the respective beams of the support unit, which are preferably always arranged alternately, in a range of 0.1 mm to 1 mm, preferably in about 0.5 mm.

In a preferred embodiment, the bars of the sieve unit are designed so that they taper downwards. In particular, the beams are triangular or trapezoidal in cross-section, or in an alternative substantially T-shaped. Moves the sieve along the trajectory, it is not only moved in the conveying direction, but also so that the filter cake is movable by means of the first sieve along a first portion of the first trajectory in a conveying direction and along the second portion of the first trajectory by means of first support unit can be supported. In the implementation with the bars, this means that the sieve unit is also moved perpendicular to the sieve surface. By making the beams of the screen unit taper downwardly, the gap between the beams of the screen unit and the corresponding support members of the support unit is increased when the screen unit is moved upwards, that is, along the first trajectory. In this case, more liquid can pass through the gap between the bars of the screen unit and the support elements of the support unit. In a preferred development, the supporting elements of the support unit designed as beams are also tapered downwards. In this case, the gap between the beams of the screen unit and the beams of the support unit is increased even when the screen unit is in the second portion of the movement path.

According to a further preferred embodiment, the drive has a first drive shaft, which has a first eccentric section with a first eccentricity, wherein the first screen unit is mounted with a first drive section on the first eccentricity. Now, if the drive shaft rotates about its axis of rotation, the eccentricity also rotates about this axis of rotation. The eccentricity describes a circular path about the axis of rotation. Due to the fact that the first screening unit is mounted on the first eccentricity, the screening unit describes a corresponding circular path. As a bearing between the first drive section of the first screening unit and the first eccentricity of the first drive shaft, a sliding bearing can be provided. Alternatively, it is also possible to provide a roller or needle roller bearing, which is structurally complex. Since the rotational speeds are not particularly high, it is advisable to provide a sliding bearing. For this purpose, it is conceivable to provide a sliding bush made of a plastic material in order to minimize wear on metal elements.

Furthermore, it is preferred that the first drive shaft has a second eccentric section with a second eccentricity, wherein the second screen unit is mounted with a first drive section on the second eccentricity. In this embodiment, the second screening unit is preferably arranged in the conveying direction adjacent to the first screening unit. The second eccentricity of the first drive shaft may be formed identically to the first eccentricity, but preferably the second eccentricity of the first drive shaft is 180 ° out of phase with the first eccentricity. As a result, the above-described phase-shifted movement of the first and second screen unit is achieved on their respective orbits. Due to the phase shift of the eccentricities on the first drive shaft and the forces on the first drive shaft are relatively low, since they compensate.

The drive expediently has a second drive shaft which has a first eccentric section with a first eccentricity, wherein the first screen unit is mounted with a second drive section on the first eccentricity. In a corresponding manner, the second drive shaft preferably has a second eccentric section with a second eccentricity, the second screen unit being mounted with a second drive section on the second eccentricity. The second drive shaft is preferably identical to the first drive shaft. The second drive shaft is preferably offset parallel to the first drive shaft, so that the screen unit can be moved along the circular path, without doing a rotation about its own axis. This ensures that the screen surface is always oriented upwards, preferably substantially horizontally, and does not tilt during operation.

As an alternative to the first and second drive shafts, it is also conceivable to guide the first and / or second screening unit by means of a sliding guide. This makes it possible to achieve a larger spectrum of trajectories, but the construction is also more complicated than by means of the drive shafts described.

It should be understood that in addition to the first and second screening unit also further third, fourth, etc. screening units may be provided. If these are likewise arranged in the conveying direction adjacent to the first and / or second screening unit, it is preferred that these are likewise driven via the drive shafts by means of further eccentricities. Thus, it is conceivable that a third screening unit is again arranged in phase with the first screening unit, and any fourth screening unit in phase with the second screening unit. It is also conceivable that three screening units are provided, the second screening unit having a larger, in particular double, width, based on the first and third screening unit. This also results in a phase shift of the second screen unit compared to the first and third screen unit achieves an energy reduction.

According to a further preferred embodiment, the at least one first receiving chamber has a liquid outlet with an outlet line, wherein the outlet line opens into a pump inlet of a pump. In addition to the first receiving chamber, further second, third and fourth receiving chambers may be provided. It is preferred that each receiving chamber has a liquid outlet with an outlet line, this outlet line in each one Pump inlet of a respective pump opens. The receiving chambers are preferably separated in the conveying direction. The liquid flowing downwards through the sieve unit becomes purer in the conveying direction, that is to say in the conveying direction the liquid flowing downwards has in each case a smaller proportion of solids. The reason for this is that at the beginning no filter cake has formed on the sieve surface. The filter cake is gradually built up in the conveying direction and leads to a further filtering of the liquid. By dividing into several receiving chambers, it is possible to remove liquids of different degrees of purity. For example, it is conceivable that liquid from the first receiving chamber, which is located upstream in the conveying direction of the other chambers, in turn fed to a reservoir, so that this liquid can be fed to the separator again.

In a further preferred embodiment, the at least one first receiving chamber has a vacuum connection for connecting a vacuum source. The vacuum source is preferably designed as a vacuum pump. The vacuum port is preferably arranged so that it is arranged in the usual operation above a liquid level in the chamber. The vacuum connection can be provided with a membrane, so that no liquid can pass through the vacuum connection to the vacuum source. Preferably, the chamber is largely sealed against the screening unit. As a result, the liquid can be filtered even better, or seven, since the liquid is "sucked" through the sieve unit. The then forming filter cake has a lower liquid content. In the event that a plurality of receiving chambers are provided, it is preferably provided that they have a total of a common ventilation, for example, by individual partition walls of the chambers are formed at a distance from the screen unit. This makes it sufficient to use a single vacuum pump for the entire Separatorvorrichtung.

In accordance with a further preferred embodiment, the separator device has a liquid feed for feeding liquid to the separator device, wherein the liquid feed has a liquid feed outlet which opens in the conveying direction at an upstream end of the first sieve unit above the sieve surface. The separator device preferably has boundary walls laterally of the sieve unit (s) so that liquid can not flow down laterally from the sieve units. It can also be provided that a wall or another type of boundary is provided at the upstream end, so that liquid can not flow down counter to the conveying direction of the sieve unit. The liquid should remain as possible on the screen surface and pass through the screen openings in the receiving chamber. The Flüssigkeitszuführauslass preferably extends across the entire width transverse to the conveying direction, so that liquid is supplied evenly to the screen unit.

In a preferred development, the separator device has an overflow drain, which is arranged above the liquid feed outlet and serves to discharge excess liquid. By disposing the overflow drain above the liquid feed outlet, the liquid feed outlet is utilized as a restriction against unwanted drainage of liquid from the sieve unit. The liquid emerging from the overflow drain is preferably fed back into a reservoir or a container.

In a further preferred embodiment, the separator device has a roller arrangement with at least one first roller, which is arranged above the screen surface for acting on a filter cake formed. The roller preferably rests on the filter cake and exerts a force in a predetermined area on this. As a result, on the one hand, the filter cake is further compressed and liquid pressed out. On the other hand, the roller also forms a boundary so that liquid can not run down unintentionally in the conveying direction of the screen unit.

Preferably, the roller assembly comprises an adjustable tensioning device, by means of which the roller can be tensioned against the screen surface. This makes it possible to adjust the force and / or the range of force. The tensioning device preferably has a tension spring and a device to adjust the tension spring. The roller may for example be arranged on a pivot arm, which allows a relative positioning of the roller to the screen surface.

Furthermore, it is preferred that the roller arrangement comprises a second roller, which is arranged at a distance from the first roller, and is adjustable in the conveying direction. The position of the roller in the conveying direction is therefore preferably adjustable. Preferably, the second roller is disposed upstream of the first roller. As a result, the filter cake can be compressed before reaching the first roller and liquid can be pressed out. It can be provided that the separator device has a second Flüssigkeitszuführauslass, which is arranged downstream of the second roller. The second roll forms a boundary for the liquid, so it may be preferable to add new liquid after the second roll, which is then also filtered by the filter cake already formed. This liquid may, for example, a receiving chamber, the is located upstream of the second roller, be removed.

In a further preferred embodiment, the separator device has a filter membrane which is arranged on the screen surface and can be conveyed together with the filter cake. In a first variant, the filter membrane is an endless circulation filter membrane. Such a filter membrane may for example be formed from a plastic material, a nonwoven material or a metal material. The endless circulation filter membrane can basically be formed as known in the art and is preferably cleaned, for example backwashed, in the section which does not bear against the screen surface by means of a cleaning unit. Preferably, a separate drive is provided for the endless circulation filter membrane, which moves along in the conveying direction.

In a second variant, the filter membrane is a consumption filter membrane which can be separated out of the separator device with the filter cake. Such a filter membrane is preferably a filter membrane made of a nonwoven material, in particular a compostable. Preferably, a separate filter membrane is provided for each sieve unit, which is conveyed through the sieve unit together with the filter cake. As a result, the filtration of the liquid is further improved.

According to a further aspect of the invention, the object mentioned at the outset is achieved by a separator system comprising a first separator device according to one of the above-described preferred embodiments of a separator device according to the first aspect of the invention, and a second separator device according to one of the above-described preferred embodiments of a separator device according to FIG the first aspect of the invention, which is disposed downstream of the first separator device and receives filter cake from the first separator device, wherein liquid from the first receiving chamber of the first separator device of the second separator device is supplied. As a result, a particularly effective filtering is achieved. The liquid from the first receiving chamber of the first separator device, which is preferably arranged at the upstream end of the first separator device, is still loaded with relatively high solids. By supplying this liquid to the second separator device, it is effectively filtered. The second separator device already receives filter cake at the upstream end, so that the liquid supplied to the second separator device is additionally filtered by the already existing filter cake.

It should be understood that the separator device according to the first aspect of the invention and the separator system according to the second aspect of the invention have the same and similar sub-aspects as set forth in particular in the subclaims. In this respect, reference is made in full to the above description.

According to a third aspect of the invention, the above-mentioned object is achieved by a method for separating solids from solids-laden liquids, comprising the steps of: supplying solids-laden liquid to a separator device according to one of the above-described preferred embodiments of a separator device according to the first aspect of the invention; and moving the first screening unit along the first trajectory to form a filter cake.

It should be understood that the separator device according to the first aspect of the invention and the method for separating solids according to the third aspect of the invention have the same and similar sub-aspects as set forth in particular in the dependent claims. In this respect, reference is made in full to the above description.

Embodiments of the invention will now be described below with reference to the drawings. These are not necessarily to scale the embodiments, but the drawings, where appropriate for explanation, executed in a schematized and / or slightly distorted form. With regard to additions to the teachings directly recognizable from the drawings reference is made to the relevant prior art. It should be noted that various modifications and changes may be made in the form and detail of an embodiment without departing from the general idea of the invention. The disclosed in the description, in the drawings and in the claims features of the invention may be essential both individually and in any combination for the development of the invention. In addition, all combinations of at least two of the features disclosed in the description, the drawings and / or the claims fall within the scope of the invention. The general idea of the invention is not limited to the exact form or detail of the preferred embodiments shown and described below or limited to an article which would be limited in comparison with the subject matter claimed in the claims. For the sake of simplicity, identical or similar parts or parts are hereafter identical or similar function uses the same reference numerals.

• 1 eine Separatorvorrichtung gemäß einem ersten Ausführungsbeispiel;
• 2a-d jeweils eine Position der Siebeinheit entlang der Bewegungsbahn;
• 3 eine perspektivische Ansicht der Fördereinrichtung;
• 4 eine Frontalansicht der Fördereinrichtung;
• 5a-5c drei verschiedene Querschnitte von Balken;
• 6 ein zweites Ausführungsbeispiel einer Separatorvorrichtung;
• 7 ein drittes Ausführungsbeispiel einer Separatorvorrichtung;
• 8 ein viertes Ausführungsbeispiel einer Separatorvorrichtung;
• 9 ein fünftes Ausführungsbeispiel einer Separatorvorrichtung;
• 10 eine Variante des fünften Ausführungsbeispiels; und
• 11 ein Separatorsystem mit zwei Separatorvorrichtungen.

The invention will be explained in more detail with reference to an embodiment with reference to the accompanying figures. Showing:

• 1 a separator device according to a first embodiment;
• 2a-d one position of the sieve unit along the movement path;
• 3 a perspective view of the conveyor;
• 4 a frontal view of the conveyor;
• 5a - 5c three different cross sections of beams;
• 6 a second embodiment of a separator device;
• 7 a third embodiment of a separator;
• 8th a fourth embodiment of a separator;
• 9 a fifth embodiment of a separator device;
• 10 a variant of the fifth embodiment; and
• 11 a Separatorsystem with two Separatorvorrichtungen.

A separator device 1 for separating solids from liquids 2 includes a conveyor 4 for conveying the solids-containing liquid 2 , and a drive 6 for driving the conveyor 4 , The separator device 1 according to this first embodiment ( 1 ) a first, a second or a third receiving chamber 8a . 8b . 8c on top of a collection container 10 in the transverse direction, transverse to a conveying direction F divide. The reception chambers 8a . 8b . 8c are below the conveyor 4 arranged and intended to receive downwardly flowing liquid 2a. The conveyor 4 is on the reservoir 10 arranged, which is a support for the conveyor 4 offers. Even if the sump 10 shown here without frame, it should be understood that in the usual structure a frame for the sump 10 is provided so that the separator 1 can be set up on a floor or another unit.

The separator device 1 has a separator section 12 on, in which the liquid 2 in solids-free or low-solids-laden liquid 2a and filter cake 2 B , which consists mainly of solids, is separated. The separator section 12 is laterally through two side walls 14 (in 1 only one side wall to see) and faces at the downstream end 16 in the conveying direction an outlet chute 18 on. About the outlet chute 18 becomes the filter cake 2 B from the separator device 1 conveyed out. Furthermore, the separator device 1 a liquid supply 20 on, which has a liquid feed outlet 22 having in the conveying direction F at an upstream end 24 the separator device 1 is arranged. Via the liquid feed outlet 22 becomes liquid 2 the separator section 12 fed. Above the liquid outlet 22 has the separator device 1 an overflow drain 26 on, which serves to excess liquid 2 derive and in this embodiment directly into a reservoir 28 flows to the excess liquid 2 in the reservoir 28 due.

The liquid supply 20 is via a supply line 30 with an outlet 32 a pump 34 connected, in turn, via a line 36 liquid 2 from the reservoir 28 can suck. The pump 34 is in this embodiment as a rotary piston pump 35 educated. Rotary lobe pumps have the advantage that they can pump solids-laden liquid in a particularly advantageous manner and are therefore particularly suitable in the present case.

The bottom of the separator line 12 is limited by a first screening unit 40 and a corresponding support unit 42 , The screening unit is intended to operate a filter cake on its screen surface 44 to build. The sieve unit 40 and the corresponding first support unit 42 be with reference to the 2 to 4 will be explained in detail.

How to continue 1 indicates, assigns the first receiving chamber 8a a first liquid outlet 46 on that with an outlet pipe 47 connected is. The first outlet pipe 47 opens into a first outlet pump 48 , in turn, in this embodiment, as a rotary piston pump 49 is trained.

Similarly, the second receiving chamber 8b a second liquid outlet 50 on that with a second outlet line 51 connected, in turn, into a second outlet pump 52 empties. The third recording chamber 8c correspondingly has a third liquid outlet 53 on that with a third outlet pipe 54 connected to a third outlet pump 55 empties. The outlet pumps 47 . 52 . 55 are only optional. The Separatorvorrichtung also works with only one pump or even without a pump, purely gravity-driven.

The liquid 2 coming from the corresponding outlets 46 . 50 . 53 flows out, has different solids loadings; at the beginning of the separator section 12 relatively many solids still pass through the first sieve unit 40 in the first receiving chamber 8a, at the end of the separator 12 already has a certain filter cake 2 B on the sieve surface 44 formed, which also acts as a filter and thus assigns the liquid 2 coming from the third fluid outlet 53 is removed, a much lower solids loading.

It is conceivable that the liquid 2 coming from the first fluid outlet 46 is removed, for further filtering the reservoir 28 is supplied. It can also be provided that the liquids from the various outlets 46 . 50 , 53 are supplied to other collection containers for different uses.

According to this first embodiment ( 1 ), the separator device further comprises a vacuum port 56 on, the according to this embodiment in the third receiving chamber 8c empties. The three receiving chambers 8a . 8b . 8c are by means of partitions 9a . 9b separated, but not flush with the arranged above first sieve unit 40 so that air and other gases from the first to the second and to the third receiving chamber 8a . 8b . 8c can reach. Therefore, it is sufficient to have a single vacuum port 56 for all three chambers 8a . 8b . 8c to provide jointly.

To the vacuum connection 56 is a vacuum source 57 connected, which in this embodiment as a vacuum pump 58 is trained. As a result, the separation of the solids-laden liquid can be further improved because liquid from below through the filter cake 2 B "Sucked" is.

Furthermore, the separator according to this first embodiment, a roller assembly 60 on that a first roller 62 which, above the screen surface 44 for acting on the formed filter cake 2 B is arranged. The roller 62 is due to the moving in the conveying direction F filter cake 2 B driven and turns, as if by the arrow 64 displayed. A roller 62 the roller assembly 60 is in detail D in 1 further detailed. The roller 62 is turning on a pivot lever 66 stored, in turn, by means of a joint 68 is hinged to the side wall 14. The swivel lever 66 is by means of a clamping device 70 in the direction of the screen surface 44 preloaded, the clamping device 70 has a tension spring in this embodiment 72 on, on the pivot lever 66 attacks and at the other end with an adjustment 74 interacts. By means of the adjusting device 74 Can the bias caused by the spring 72 is applied, increased or decreased. For this purpose, the clamping device 74 a turning screw 75 on that the spring 72 can stretch.

With reference to the 2 to 4 Now the exact structure of the conveyor 4 and in particular the first screening unit 40 and the corresponding first support unit 42 described. The first screening unit 40 is in the 2a to 2d shown in four different positions during which it is moved along a trajectory B. The trajectory B is now in 2a indicated as a dashed line and is circular in this embodiment. The first screening unit 40 has a plurality of first screen openings 78 on (cf. 4 ) and the first support unit 42 has a corresponding plurality of first support elements 80 on that in the first sieve opening 78 can at least partially engage, so that in a first portion B1 of the movement path B, the first screen openings 78 are released and in a second section B2 of the first movement path B, the first support elements 80 the first support unit 42 at least partially into the first screen openings 78 extend to the filter cake 2 B to support. In this embodiment, the conveyor 4 as so-called Hubbalkenförderer 5 trained and the first screening unit 40 has a plurality of mutually parallel and spaced beams 82 on, the slit-shaped screen openings 78 define (cf. 4 ). Although in 4 only one bar each 82 the first screening unit 40 , a slit-shaped sieve opening 78 and a support element 80 is shown, it is to be understood that a plurality is present and the other elements may be incorporated in 4 be recognized.

The trajectory B has two sections, namely a first section B1 and a second section B2. The 2a and 2c show the first sieve unit 40 at the transition between the second and first sections ( 2a ) or between the transition between the first and second sections ( 2c ) in the conveying direction F. That is, in the 2a and 2c is the screen surface 44 aligned in a plane with a support surface 43 the first support unit 42 , In 2 B is the first sieve unit 40 at the top dead center T1 of the movement path B in the first section B1 and thus the screen surface is 44 above the support surface 43 passing through the first support unit 42 is formed. Then moves the screen unit 40 along the trajectory 3 Next, she moves back down a bit and with reference to 2 also to the left. In 2c is the first sieving unit 40 then see at the transition between the first and second sections B1, B2, and in 2d at the bottom dead center T2 of the path B. In the second Section B2 of the trajectory B is the support surface 42 below the sieve surface 43 arranged (cf. 2d ), so that in this section B2 of the trajectory B of the filter cake 2 B through the support surface 43 the support unit 42 is supported. In the second section B2 of the movement path B, the sieve unit moves 40 essentially counter to the conveying direction F back to the transition point between the second and first section B1 and thus to the position as in 2a shown back.

By raising and lowering the beams 82 the first screening unit 40 So can the filter cake 2 B be promoted, which is why the conveyor 4 also as lifting beam conveyor 5 referred to as.

Like now in the 3 and 4 is illustrated has the conveyor 4 next to the first sieve unit 40 additionally a second screening unit 90 and a third screening unit 94 on. The second and third screening unit 90 . 94 are identical to the first sieve unit 40 formed and also have a plurality of second bars 91 , or third bar 95 on, between them a corresponding plurality of second screen openings 92 , or third sieve openings 96 form.

Similarly, corresponding second and third support units 93 . 97 provided, which is identical to the first support unit 42 are formed and also bar-shaped second and third support elements 98 . 99 exhibit. The second and third beam-shaped support elements 98 . 99 reach into the second and third sieve openings 91 . 95 as with respect to the first screening unit 40 has been described.

In particular, in this embodiment, the first, second and third support units 42 . 93 . 97 formed integrally and have identical beam-shaped support elements 80 . 98 . 99 on.

For driving the first, second and third screening units 40 . 90 . 94 is a common drive 6 intended. The drive 6 is in the 2 to 4 shown without motor, but it should be understood that for this purpose a motor, such as an electric motor, may be provided.

The drive 6 includes in this embodiment, a first and a second drive shaft 100 . 102 , which are each rotatable about a rotation axis R1, R2 are the first drive shaft 100 has a first eccentric section 104 on, in turn, a first eccentricity 106 a second eccentricity 108 and a third eccentricity 110 having. The second drive shaft 102 is identical to the first drive shaft 100 formed and has a corresponding eccentric section 112 on, with a first, second and third eccentricity 114 (in the 2 to 3 to see only one eccentricity).

The first, second and third screening units 40 . 90 . 94 are each with a first drive section 116 . 117 . 118 on the first eccentric section 104 stored. The first screening unit 40 is with her first drive section 116 on the first eccentricity 106 stored, the second screening unit 90 is with her first drive section 117 on the second eccentricity 108 stored, and the third screening unit 94 is with her first drive section 118 on the third eccentricity 110 stored.

Accordingly, the first, second and third screening units 40 . 90 . 94 with a second drive section 120 (In the figures, only the second drive section of the first screening unit 40 to see).

Now if the drive shafts 100 . 102 rotate in the direction of the arrows in the 2a . 2 B . 2c . 2d indicated direction, rotate the eccentricities 106 . 108 . 110 . 114 around the axes of rotation R1, R2, as from the point in the eccentricities 106 . 114 in the 2a to 2d displayed. Accordingly, due to the eccentricities on which the sieve units 40 . 90 . 94 are stored, these forced to move on the trajectory B. They will be in accordance with the rotation of the eccentricities 106 . 108 . 110 . 114 about the rotation axes R1, R2 forced to move in an identical trajectory circular.

It has proved to be particularly advantageous that the eccentricities 106 . 108 , 110 of an eccentric section 104 are rotated against each other, or phase-shifted. In this embodiment, the phase shift is 180 °. The first eccentricity 106 and the third eccentricity 110 are arranged in phase. The second eccentricity 108 is opposite the first eccentricity 106 and the third eccentricity 110 rotated by 180 °. This means that the movement along the trajectory B of the second screening unit 90 based on the first and third screening units 40 , 94 travels 180 °. While the first and third sieve unit 40 . 94 in a position like in 2 B are shown, there is the second screening unit 90 in a position like in 2d shown. While the first and third eccentricity 40 . 94 are moved upward, moves the second screen unit 90 downward. This is the separator 1 According to the present invention particularly energy-saving, since partially the gravitational force of the first and third screening units 40 . 94 can be used to the second screening unit 90 to move up, and vice versa.

Furthermore, this can be done by a particularly continuous process of filtration or sieving and the transport of filter cake 2 B takes place largely continuously.

It has already been mentioned above that the sieve units 40 . 90 . 94 bar 82 . 91 95, and the support units 42 . 93 . 97 corresponding bar-shaped support elements 80 . 92 . 96 exhibit. The lateral distance, in the direction of the axes of rotation R1, R2 between two adjacent bars 82 . 91 . 95 is slightly larger than the width of each arranged between these beam-shaped support elements 80 . 92 . 96 , This results in small gaps, through the liquid from the screen surface 44 out into the first, second and third receiving chambers 8a . 8b . 8c can get.

To make the filtration process even more effective, the bars have 82 . 91 . 95 preferably a cross-section, which tapers towards the bottom. Three such cross sections are in the 5a . 5b . 5c illustrated. In all three variants is the bar 82 the first screening unit 40 shown; It should be understood that the bars 91 . 95 , the second and the third screening unit 90 . 94 can also be designed.

In all three variants is the bar 82 formed on an upper side flat, so as to the screen surface 44 to build. The flat training serves to the filter cake 2 B to carry and this while moving the sieve units 40 . 90 . 94 to move in the conveying direction F.

In the first embodiment ( 5a ) the bar is running 82 pointed towards the bottom and has a triangular cross-section.

In the second embodiment ( 5b ) the beam tapers 82 also downwards, but not tapering, but trapezoidal. As a result, it offers a little more stability and is less susceptible to wear.

Another variant is in 5c shown. There, the beam is T-shaped. The T-shaped design has the advantage that during a movement of the screening units 40 . 90 . 94 the enlargement of the gap between the respective bars 82 and the beam-shaped support elements 80 grows larger, namely, when the head 122 of the T with its lower edge 123 over the upper surface of the beam-shaped support elements 80 that comes the support surface 43 form. This makes it possible even more liquid from the separator 12 into the first, second and third receiving chambers 8a . 8b . 8c respectively.

In the in 6 illustrated second embodiment, the separator differs 1 from the first embodiment ( 1 ) essentially by the roller arrangement 60 , The same and similar elements are provided with the same reference numerals and in this respect, reference is made in full to the above description. Hereinafter, in particular, the differences between the first embodiment ( 1 ) and the second embodiment ( 6 ).

The roller arrangement 60 has according to this embodiment ( 6 ) next to the first roller 62 another second roller 130 and a third roller 140 on. The second and third roller 130 . 140 are upstream of the first roller 62 arranged in the conveying direction F. The rollers 130 . 140 serve as well as the first roller 62 to the filter cake 2 B that is on the screen surface 44 forms to compress, so more liquid 2 Press out of this, and the solids content of the filter cake 2 B to increase. Further, the rollers form 62 . 130 . 140 a limitation for flowing liquid 2 so that liquid 2 not easily in the direction of the outlet 18 from the separator device 1 can flow out.

Further, the rollers 130 . 140 in this embodiment ( 6 ) are formed so that they are adjustable in the conveying direction F. This is with the rollers 130 . 140 illustrated by the fact that in each case an arrow 131 . 141 indicates the adjustability. For example, the roller 130 so slidable that they move to the position indicated by the dotted line 130 ' is shown, is displaceable. The same applies to the roller 140 leading up to a position marked by the dashed roller 140 ' can be moved. The rollers 130 . 140 are taken with their axes (not shown) in just such pivoting levers (also not shown), so that they are displaceable.

The displacement of the rollers 62 . 130 . 140 is also in detail D the 6 illustrated: Preferably, the entire roller assembly 60 shifted, but in any case the respective roller including pivot lever 66 and preferably tensioning device 70 , For the pivot lever 66 You can do this with a slot or single discrete openings in the wall 14 be provided. The same applies to the clamping device; Individual discrete recordings can also be provided for these, so that they are displaceable, as shown in detail D by the aligned lines of the clamping devices 70 ' . 70 " displayed. Preference is given to the wall 14 several nuts for the turning screw 75 the clamping device 70 provided so that for adjusting each of the rotary screw 75 only has to be screwed through the appropriate nut.

In accordance with the rollers 130 . 140 are in this embodiment ( 6 ) also the partitions 9b . 9a slidably formed (see arrow 144 . 145 ) and can move to the positions indicated by the dashed dividing walls 9b ' . 9a ' are marked to be moved. This further allows the solids loading of the liquid passing through the liquid outlets 46 . 50 . 53 can be removed, adjust.

In addition, it is provided in this embodiment that a second liquid supply 150 a second liquid outlet 152 comprising the liquid between the first roller 62 and the second roller 130 the separator section 12 supplies. Furthermore, a third liquid supply 154 with a third fluid outlet 156 provided the liquid 2 between the second roller 30 and the third roller 140 supplies. As a result, it is specifically possible, more liquid 2 to filter, and in particular the filter cake 2 B that goes up to this section of the filter line 12 already made use of as an additional filter.

It is also possible, for additional filtering of the liquid, a filter membrane 160 as described below with respect to the third and fourth embodiments ( 7 and 8th ) is described.

The same and similar elements are in turn provided with the same reference numerals, so that reference is made in full to the above description. Overall, the structure of the 7 and 8th the separator device 1 simplified and some elements included in the 1 and 6 are shown in the 7 and 8th omitted. Nevertheless, it should be understood that the separator device 1 according to the third and fourth embodiments, all in the 1 and 6 may have shown elements, in particular the roller assembly and the three receiving chambers 8a . 8b . 8c ,

The essential difference between the third embodiment and the first two embodiments as well as the fourth embodiment and the first two embodiments lies in the filter membrane 160 , In the third embodiment ( 7 ) the filter membrane is an endless circulation filter membrane 162 formed and in the fourth embodiment ( 8th ) as a consumption filter membrane 164 ,

In the third embodiment ( 7 ) is the endless circulation filter membrane 162 above the sieve surface 44 guided and passes through the Flüssigkeitszuführauslass 22 as well as the outlet 18 , At the separator device 1 are four pulleys 166a . 166b , 166c, 166d, provided so that the endless circulation filter membrane 162 can run in the conveying direction. Preferably, at least one of the deflection rollers 166a to 166d driven in such a way that the filter membrane 162 moved at about the same speed as the filter cake 2 B , Alternatively, the endless circulation filter membrane 162 becomes solely by the conveyor 4 promoted. For this purpose, it is conceivable that the first screening unit 140 Form-fitting elements, such as projections or the like, so that the endless circulation filter membrane 162 can be effectively promoted.

Further, it is preferably provided that below the collecting container 10 , or beside this, a backwashing device is provided for cleaning the endless circulation filter membrane 162.

In the fourth embodiment, the filter membrane 160 as a consumption filter membrane 164 trained and is on a roll 168 provided. It runs as well as the endless circulation filter membrane 162 through the liquid supply outlet 22 and above the screen surface 44 to the outlet. There she runs down, as through the section 169 shown, and will be together with the filter cake 2 B composted. The consumption filter membrane 164 is preferably alone by the conveyor 4 conveyed forward in the conveying direction F.

It can be provided that for each screening unit 40 . 90 . 94 (see. 3 and 4 ) a separate web of filter membranes 160 is provided. This has advantages when multiple screening devices 40 . 90 . 94 are provided, which are arranged on phase-offset eccentricities.

In 9 is a fifth embodiment of the separator 1 shown. The same and similar elements are provided with the same reference numerals and in this respect, reference is made in full to the above description.

An essential difference of the separator device 1 according to the fifth embodiment ( 9 ) is that this separator device 1 does not work with negative pressure as the first four embodiments, but with overpressure. That is, it is at the sump 10 no vacuum pump arranged. The collection container 10 again has three receiving chambers 8a . 8b and 8c on, in a known manner with an outlet 46 . 50 . 53 may be provided in 9 but not shown.

To a formation of filter cake 2 B to promote has the separator 1 according to this fifth embodiment, a tank 170 on top of the conveyor 4 is arranged. The Tank 170 has side walls 171 . 172 on top of the sump 10 and the Conveyor 4 to lock. In downstream conveyor F is the tank 170 through the roller 62 sealed. This can be done between the roller 62 and the side wall 172 a seal 173 be provided, for example in the form of a flexible wall, due to the hydrostatic pressure against the roller 62 is pressed, or in the form of a sealing lip.

In this embodiment ( 9 ) extends the tank 170 in the conveying direction over the entire length. It should be understood that the tank 170 may also have a shorter length. In that sense, the tank 170 at an inlet 174 with a riser 175 connected directly to the outlet 32 the pump 34 connected is. The pump 34 is regulated so that it has a pressure P in a predetermined area in the tank 170 can adjust. The pump 23 is regulated so that a sufficient hydrostatic pressure P prevails to liquid 2 through the conveyor 4 to squeeze to a filter cake 2 B deposit. For this purpose, for example, a pressure sensor in the tank 170 be provided, or it is tapped off the torque of the pump and the torque applied to the pump 34 the pressure P is set.

A variant is in 10 shown. The riser 175 has an extension in this embodiment 176 on, which is also called repatriation 177 for liquid 2 serves. Due to the height Z, the pressure P can be inside the tank 170 be significantly increased to further increase the potential throughput. At the top of the extension 176 is a vent 178 provided that an empty eye of the extension 176 in the container 28 prevented.

11 finally shows a separator system 200 , The separator system 200 has two separator devices arranged one behind the other in conveying device F. 1a . 1b on. While the separator device 1a essentially according to the separator device 1 according to the first embodiment ( 1 ), is the separator device 1b formed slightly different. In particular, the upstream end is 24 deviating formed. At the upstream end 24 the separator device 1b is not a fluid delivery outlet 22 arranged as shown in the first exemplary embodiments ( 1 to 8th ), but liquid 2 is fed from above through a feed tube 202 , The feed tube 202 is formed approximately as the liquid supply 150 . 154 in the second embodiment (see. 6 ). This makes it possible for filter cake 2 B from the first separator device 1a to the second separator device 1b is transported directly. The liquid 2 , that of the second separator device 1b is supplied, comes from the receiving chamber 8th the first separator 1a , The liquid 2a from the second separator device 1b over the outlet 204 is removed, is substantially solids-free, as they are separated by two separator 12 was freed from solids.

In theory, any number of separator devices can be used here 1 cascaded, depending on the present filtration task. So it is sufficient for some tasks, only a Separatorvorrichtung 1 Other objects require the provision of three separator devices 1 , It is also conceivable that the screening units 40 the first and second separator devices 1a . 1b can be designed differently, in particular have different sized screen openings.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 3404110 A1 [0007]
• DE 202015101414 [0008]

Claims (28)

Separator device (1) for separating solids from liquids (2), comprising: a conveying device (4) for conveying a solids-containing liquid (2), a drive (6) for driving the conveying device (4) and at least one first receiving chamber (8a, 8b, 8c) which is arranged below the conveyor (4) and is intended to receive downwardly flowing liquid (2a), characterized in that the conveyor (4) at least a first screening unit (40) which is provided in the Operation to form a filter cake (2b) on a first screen surface (44) of the first screen unit (40), and a first support unit (42) corresponding to the first screen unit (40), the first screen unit (40) by means of the drive ( 6) on a first movement path (B) is movable, such that the filter cake (2b) by means of the first sieve unit (40) along a first portion (B1) of the first trajectory (B) in a Fö Direction of movement (F) is movable, and along a second portion (B2) of the first movement path (B) by means of the first support unit (42) can be supported. Separator after Claim 1 wherein the first screening unit (40) has a plurality of first screen openings (78) and the first support unit (42) has a corresponding plurality of first support elements (80) which are at least partially engageable with the first screen openings (78) the first section (B1) of the first movement path (B), the first screen openings (78) are released, and in the second section (B2) of the first movement path (B), the first support elements (80) of the first support unit (42) at least partially in the first screen openings (78) extend to support the filter cake (2b). Separator after Claim 1 or 2 , wherein the first trajectory (B) is a circular path. Separator after Claim 3 , wherein the central axis of the circular path is aligned substantially parallel to the screen surface (44) of the first screen unit (40). Separator device according to one of the preceding claims, wherein the conveying device (4) has a second screening unit (90) with a corresponding second support unit (93), wherein the second screening unit (90) is movable on a second movement path (B). Separator after Claim 5 , wherein the second screening unit (90) is arranged in the conveying direction (F) next to the first screening unit (40). Separator after Claim 5 wherein the second screening unit (90) is arranged in the conveying direction (F) downstream of the first screening unit (40). Separator device according to one of Claims 5 to 7 wherein the second trajectory (B) is a circular path, and wherein the first and second sieve units (40, 90) are movable in phase along the circular path. Separator after Claim 8 , wherein the phase shift is approximately 180 °. A separator apparatus according to any one of the preceding claims, wherein the first screen unit (40) comprises a plurality of parallel and spaced apart beams (82) defining a plurality of slit screen openings (78). Separator after Claim 10 wherein the beams (82) taper downwardly in cross-section. Separator after Claim 11 wherein the beams (82) are approximately triangular or trapezoidal in cross-section. Separator after Claim 11 wherein the beams (82) are approximately T-shaped in cross-section. Separator device according to one of the preceding claims, wherein the drive (6) has a first drive shaft (100) having a first eccentric portion (104) with a first eccentricity (106), the first screening unit (40) having a first drive portion (116 ) is mounted on the first eccentricity (106). Separator after Claim 14 wherein the first drive shaft (100) has a second eccentricity (108) formed on the first eccentric section (104), the second screen unit (90) being mounted with a first drive section (117) on the second eccentricity (108). Separator after Claim 14 or 15 wherein the drive (6) has a second drive shaft (102) which has a first eccentric section (112) with a first eccentricity (114), the first screen unit (40) having a second drive section (120) on the first eccentricity ( 114) of the second drive shaft (102) is mounted. Separator device according to one of the preceding claims, wherein the at least one first receiving chamber (8a, 8b, 8c) has a liquid outlet (46, 50, 53) with an outlet line (47, 51, 54), wherein the outlet line (47, 51, 54) into a pump inlet of a pump (48, 52, 55) opens. Separator device according to one of the preceding claims, wherein the at least one first receiving chamber (8a, 8b, 8c) has a vacuum port (56) for connecting a vacuum source (57). A separator device according to any one of the preceding claims, comprising a liquid supply (20) for supplying liquid (2) to the separator device (1), the liquid supply (20) having a liquid supply outlet (22) in the conveying direction (F) at an upstream end (24) of the first screen unit (40) above the screen surface (44) opens. Separator after Claim 19 comprising an overflow drain (26) disposed above the liquid supply outlet (22) and serving to drain excess liquid (2). A separator apparatus according to any one of the preceding claims, comprising a roller assembly (60) having at least one first roller (62) disposed above the screen surface (44) for acting on a formed filter cake (2b). Separator after Claim 21 wherein the roller assembly (60) comprises a preferably adjustable tensioning means (70) for tensioning the roller (62) against the screen surface (44). Separator after Claim 21 or 22 wherein the roller assembly (60) comprises a second roller (130) which is spaced apart from the first roller (62), preferably arranged upstream, and in the conveying direction (F) is adjustable. Separator after Claim 23 , wherein downstream of the second roller (130), a further Flüssigkeitszuführauslass (152) is arranged. Separator device according to one of the preceding claims, comprising a filter membrane (160) which is arranged on the screen surface (44) and is conveyable together with the filter cake (2b). Separator after Claim 25 wherein the filter membrane (160) is an endless circulation filter membrane (162). Separator after Claim 25 wherein the filter membrane is a consumption filter membrane (164) which is separable with the filter cake from the Separatorvorrichtung. Separator system (200), with a first separator device (1a) according to one of Claims 1 to 27 , and a second separator device (1b) according to one of Claims 1 to 27 which is disposed downstream of the first separator device (1a) and receives filter cake (2b) from the first separator device (1a), liquid (2a) being supplied from the first receiving chamber (8a) to the first separator device (1a) to the second separator device (1b) becomes.

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