DE102009000241A1 - System for separating particles from process liquids, comprises a cyclone separator, which has a housing with a separation chamber, a suspended solid reception chamber and a sediment reception chamber, an inlet line and an outlet line - Google Patents

Abstract

The system comprises a cyclone separator, which has a housing with a separation chamber (8), a suspended solid reception chamber (4) and a sediment reception chamber, an inlet line (10) with an inlet opening (12) for supplying the process liquid into the separation chamber and an outlet line (14) flowing into an interior of the separation chamber and having an outlet opening (16), a flow guiding device, which is provided in the separation chamber, and a solid collecting chamber, which is arranged below the sediment reception chamber and has a solid discharge line. The system comprises a cyclone separator, which has a housing with a separation chamber (8), a suspended solid reception chamber (4) and a sediment reception chamber, an inlet line (10) with an inlet opening (12) for supplying the process liquid into the separation chamber and an outlet line (14) flowing into an interior of the separation chamber and having an outlet opening (16), a flow guiding device, which is provided in the separation chamber, and a solid collecting chamber, which is arranged below the sediment reception chamber, has a solid discharge line and is connected with the outlet lines of the suspended solid reception chamber and the sediment reception chamber. The flow guiding device guides the flow of the process liquid from a radially outwardly lying outer area of the separation chamber that is free from the flow guiding device into a radially inwardly lying area of the separation chamber that is free from the flow guiding device. A vacuum line is connected in the upper area of the solid collecting chamber and is connected with a vacuum pump. A further reception chamber is arranged over the suspended solid reception chamber, is connected with the inlet line and is to be connected with the separation chamber over the outlet line. The separation chamber is a cylindrical chamber wall. The suspended solid reception chamber is formed in a truncated-cone-like manner, and is inserted into the further reception chamber that has a cylindrical outer wall. The sediment reception chamber is formed in a truncated-cone-like manner, and is inserted into the solid collecting chamber that has a cylindrical outer wall. The further reception chamber, the suspended solid reception chamber, the sediment reception chamber, the solid collecting chamber and the separation chamber are respectively formed as modular building units, which are to be connected together with clamping rings. The suspended solid reception chamber has a ventilation opening for aerating gaseous constituents from the suspended solid reception chamber. A chemical feeding device is provided for treating the process liquid in a central area of the cyclone separator. A gas supply device is provided for treating and/or floating the process liquid in the central area of the cyclone separator, where the gas is air or oxygen. The gas supply device and/or the chemical feeding device are connected with a distributor ring, which is provided in the central area of the cyclone separator and has outlet openings for the gas and/or the chemicals. A bypass line is provided with a pump from the separation chamber to the further reception chamber. The system includes an electrode cell, which is provided for treating the process liquid by an electric field that is developed between the electrodes of the electrode cell and is integrated into the bypass line. The inlet line and/or the bypass line are a tubular line. One of the electrodes is arranged at an inner surface of the tubular line and the other electrode is coaxially arranged in the tubular line over an insulator. The electrode cell is inserted into the inlet line and/or the bypass line and has a sheath, which has a larger inner space than the inlet line and/or the bypass line. The electrodes form a serpentine-like flow path for the process liquid. The electrodes are insulated against the process liquid. A high voltage is applied to the electrodes. The inlet opening of the inlet line tangentially flows into an outer area of the separation chamber for supplying the process liquid into the separation chamber. The outlet opening of the outlet line flows between the outer area of the separation chamber and a central area of the separation chamber. The flow guiding device has two conductive plates, which run from the central area of the separation chamber that is free from the conductive plates to the chamber wall, end below a distance from the chamber wall and have a bulge in relation to the flow direction of the process liquid, so that the flow of the process liquid is guided from the outer area to the central area of the separation chamber. The conductive plates are connected with one another by a holding ring at its upper and lower lying ends and in the central area and outer area, where the holding ring is anchored to the separation chamber. The flow guiding device is connected to the separation chamber over the outlet line. The area between the conductive plates is freely accessible from the central area. The conductive plates lie in the outer area directly before the inlet opening in the flow direction of the flow. A cylindrical sheath is provided at the circumference of the flow guiding device, which extends itself from one of the conductive plates to the other of the conductive plates in the flow direction of the flow.

Description

The The invention relates to a device for continuous processing of process liquids with a cyclone separator.

There the wastewater can be heavily contaminated they do not have to be discharged directly into the sewer system and must be treated before the initiation so that the limits are respected can be. These are dependent on the specified Limits in the respective statutes of the city. The wastewater must be treated or cleaned.

It It is known that the prescribed limits for polluted wastewater of commercial kitchens and food processing companies before discharge into the sewage system via Leichstoffabscheider such as B. grease trap with conventional methods and Facilities that are not achievable or to be respected. The charged Wastewater contains mainly organic, biological degradable substances (eg fats, oils, starch, etc.).

The Problem of compliance with limit values for loaded wastewater can not be solved via grease separator become. The retention of real or disperse dissolved Substances in the separator is not possible. The wastewater limit values lie after the treatment over gravity separator a multiple higher than allowed and need a post-treatment. These are usually done via a grease separator and at least one other Treatment stage in which a flotation and / or a biological Treatment, filtrations and the like can be performed. These facilities are not experienced compact in one unit and as spatial as possible built small but require a large spatial Installation for the storage containers with their Post-treatment container.

Wastewater treatment systems to comply with the wastewater limits of conventional design a pre-separation for sediments (eg sludges) and floating substances (eg fats) as well as downstream wastewater treatment systems like flotations or biologies. In the simplest case exist They essentially consist of at least one or more additional ones upstream and downstream tanks (storage tank, Fat separator, flotation or biological separator) for treatment of the sewage.

From the WO 2007/115179 For example, a device for separating colloids and nitrogen compounds from contaminated water by coagulating the colloids and separating them from the water is known. The wastewater is fed to an electrolytic cell where electro-electrolysis takes place. The wastewater is then transferred to settling tanks, where the flocculent floats and the purified water is removed. This device requires a large construction cost and is not suitable for the removal of suspended matter.

From the EP 1 174 394 a device for purifying waste water is known, in which an electrode having a metal electro-electrolytic reactor is followed by a reactor with a stirrer. A device for measuring the pH and a dosing device for dosing bases is provided in the downstream reactor. The downstream reactor is connected to the electro-flooding reactor above its liquid level arranged guide surface. After the downstream reactor, a settling tank is provided, in which the solid components of the waste water settle, while the purified water is withdrawn near the surface of the water. This device also requires a large construction cost and is not suitable for the separation of suspended matter.

A cyclone separator in which by means of flow effects in a swirling flow formed in the cyclone separator, the particles (sinking and suspended matter) are collected in a deposition area and provided for disposal in a buffer area is known from US Pat DE 241 369 known. Such cyclone separators are incapable of meeting the prescribed contaminated effluent limits, because the deposition depends on the size of the particles to be separated, and there are smallest contaminant particles in the effluents that do not enter the deposition area due to centrifugal force in the cyclone separator.

From the WO 2005/105679 is a device for wastewater treatment with a container for receiving wastewater and two associated with the container, with respect to the waste water isolated electrodes for generating an electric field known. The water pretreated by the electrode cell is aftertreated in a post-treatment store in which a measuring probe for determining the pH, a dosing device for chemical products and a stirring mixing device are provided. In the aftertreatment storage further treatment stages, such as a gravity separator, must be followed, in order to achieve the required purity levels of the wastewater. Again, it is thus a large-scale plant.

From the WO 92/05853 is a device for separating part of liquid dispersions in which both an electric field and an aligned centrifugal force act simultaneously on the dispersion. Due to the structural design and integration of the electrodes that generate the electric field and the means for generating the centrifugal force, the throughput of this arrangement is limited.

task invention, it is a device for continuous wastewater treatment, especially sewage treatment and / or wastewater treatment and Disposal, loaded wastewater without buffering the wastewater to comply with the required waste water limits in compact design to provide, the deposition of impurities of the loaded wastewater quickly in a container.

To is the device for separating particles from process liquids comprising: a cyclone separator having a housing with a deposition chamber, a suspended matter receiving chamber and a Sediment receiving chamber, an inlet conduit with an inlet mouth for supplying the process liquid into the deposition chamber and an outlet line opening into the interior of the deposition chamber having an outlet opening, one in the deposition chamber provided flow guide is the flow of the Process fluid from a radially outer Area of the deposition chamber in a radially inner region the deposition chamber leads.

The Invention provides a high performance cyclone separator for continuous / immediate Separation of loaded process liquids (sewage from gray and black water, industrial wastewater, process waste water), especially for suspended and suspended matter from process liquid treatment, Process liquid clarification, process liquid purification and process fluid disposal for compliance with limit values in a compact design. The inventive device is thus basically suitable for the separation of the finest liquid and / or solid particles from process liquids. In the one container of the device is the sewage treatment to comply with the limit values below 100 mg / l lipophilic substances as already achieved by many cities and municipalities be required. With the invention it is achieved that the Floktatrückstände to a minimum and the disposal costs are significantly reduced.

The Facility needs little space and can be used for All common accumulating wastewater volume in compact design be implemented. The ratio of waste water, Residence time, container size, efficiency baffles, volume flow, electrostatic charge, diameter container, temperature, electrodes, air injection or Air turbulence as well as binding agents (eg flocculants) be optimized that when leaving the device already the to be met limits. The deposited sinking and floating substances can then be continuously after seizure be disposed of in an unloading station.

The Equipment is freely accessible in the smallest space and for all nominal sizes and wastewater volumes suitable. The system leads to savings or reduction in the available space, personnel costs, chemical and biological treatment agents, disposal costs, since the wastewater treatment system built in a compact unit becomes.

A advantageous embodiment of the invention is characterized in that that under the sediment receiving chamber, a solids collection chamber arranged with the discharge lines from the suspended matter receiving chamber and the sediment receiving chamber is connected and a solids discharge conduit having. This will without increasing the footprint the facility created the possibility of the solid components, those in the suspended matter receiving chamber and the sediment receiving chamber have been collected between store before the solids be discharged.

A advantageous embodiment of the invention is characterized in that that in the upper part of the solids collecting chamber, a vacuum line is connected, which is connected to a vacuum pump. In order to The suspended matter and the sediments that are over Outlet pipes deducted from the suspended matter and the suspended matter to be transferred in an advantageous manner in the solids collection chamber be without the solid components, for example by pumping must be promoted through what, in terms of on the particle content of the material flows problematic would.

An advantageous embodiment of the invention is characterized in that above the suspended matter receiving chamber, a feed chamber is arranged, which is connected to the inlet line and is to be connected via an outlet to the deposition chamber. By this arrangement, the master chamber, a buffer memory can be formed, which has an advantageous effect when the process water quantities to be treated fluctuate and temporarily exceed the capacity of the deposition chamber. The excess process liquid is then temporarily stored temporarily in the feed chamber, from where it can be returned to the cleaning cycle when the inflowing process fluid quantity allows this.

A further advantageous embodiment of the invention is characterized in that the deposition chamber has a cylindrical chamber wall, what is the impact or circular flow of the process fluid favors in the deposition chamber.

A further advantageous embodiment of the invention is characterized in that that the suspended matter receiving chamber and the sediment receiving chamber are frusto-conical, whereby the accumulation the solid components in the suspended matter receiving chamber and in the sediment receiving chamber is designed so that the solids each at the top of the frusto-conical chamber completely can be deducted.

A further advantageous embodiment of the invention is characterized in that that the suspended matter receiving chamber in the original chamber, the one having cylindrical outer wall, is used. Another advantageous embodiment of the invention is characterized in that that the sediment receiving chamber in the solids collecting chamber, which has a cylindrical outer wall, is used. If the suspended matter receiving chamber with the master chamber and the Sinkstoff-receiving chamber with the solids collection chamber in this Way is combined, resulting in a space-saving arrangement the respective chambers, which is advantageous for compactness the institution contributes.

A further advantageous embodiment of the invention is characterized in that that the master chamber and the suspended matter receiving chamber and the sediment receiving chamber and the solid collecting chamber and the deposition chamber each formed as modular units are to be assembled during assembly on site, preferably are to be connected with each other with clamping rings. The compact design allows the device according to the invention it, the individual components of the cyclone separator as a modular Design units, which proves to be advantageous if the facility in closed rooms with limited Access should be established.

A further advantageous embodiment of the invention is characterized in that that the suspended solids receiving chamber has a vent for venting gaseous constituents having the suspended matter receiving chamber. This allows gases, which may also be odor nuisance, deducted and disposed of at this point.

A further advantageous embodiment of the invention is characterized in that that a supply line for chemicals for treatment the process liquid in a central region of the cyclone separator is provided. By entry of binder, the deposition behavior can be improved.

A further advantageous embodiment of the invention is characterized in that that a gas supply line for a gas, in particular air or Oxygen, for treatment or flotation of the process fluid is provided in a central region of the cyclone separator. Also By air injection, the deposition behavior is improved by the air bubbles attach to floating particles and pay them up.

A further advantageous embodiment of the invention is characterized in that that the gas supply line and / or the supply line for chemicals connected to a distribution ring that is in the central area the cyclone separator is provided and outlet openings for the gas or chemicals. By the arrangement of the distribution ring becomes the gas or the chemicals are so fed to the process water, that on the one hand to a further treatment of the process water and on the other hand but not directly into the outlet port of the outlet conduit for the purified process water.

A further advantageous embodiment of the invention is characterized in that that a bypass line with a pump from the inlet area the deposition chamber of the cyclone separator to the exit area the cyclone separator is provided, wherein the process liquid repeatedly passed through the cyclone separator, so that the Efficiency of the cyclone separator can be improved.

A further advantageous embodiment of the invention is characterized in that at least one electrode cell ( 80 ; 110 ) located in the inlet pipe ( 10 ) is provided for the treatment of the process liquid by an electric field, which between electrodes of the electrode cell ( 80 ; 110 ) is to build up. The electrode cell advantageously causes a flocculation of, and thus a better separation of the finest liquid and / or solid particles from process liquids, so that the wastewater treatment in the one container is sufficiently achieved.

A further advantageous embodiment of the invention is characterized in that a By Pass line is provided with a pump from the deposition chamber of the cyclone separator to the feed chamber of the cyclone separator. Thus, the feed chamber is advantageously included in the circulation of the process liquid, and the process liquid is again supplied from the feed chamber to the deposition chamber and indeed at the same location as the process liquid initially introduced into the cyclone separator, so that the recycled process liquid in turn the entire Deposition process is subjected in the cyclone separator.

A further advantageous embodiment of the invention is characterized in that that integrated in the bypass line another electrode cell is, so that the action of the electrodes of the electrode cell on the process liquid is practically doubled, without To increase the space requirements of the device significantly.

A further advantageous embodiment of the invention is characterized in that that the inlet line or the bypass line is a pipeline, and that an electrode on an inner surface of the pipeline and a counter electrode via an insulator coaxially in the pipeline are arranged. This allows the electric cell particularly easy in the inlet line or the bypass line integrate.

A further advantageous embodiment of the invention is characterized in that that the electrode cell in the inlet line or the bypass line is inserted and has a jacket, which has a larger Interior than the inlet line or the bypass line, and that the electrodes have a serpentine flow path for the process fluid. Because the effect of the electrodes depends on the process fluid of how long exposed the process fluid to the electric field is through the serpentine flow guide for the process fluid a more intensive treatment of the process water through the electrode cell.

A further advantageous embodiment of the invention is characterized in that that the electrodes of the electrode cell compared to the process liquid are isolated, leaving only the electric field on the process fluid acts and the electrodes are not consumed.

A further advantageous embodiment of the invention is characterized in that that to apply a high voltage to the electrodes of the electrode cell is, the height of the voltage of the application depends and be dimensioned in a conventional manner can.

A further advantageous embodiment of the invention is characterized in that that the inlet port of the inlet conduit for supplying the Process liquid in the deposition chamber tangentially discharges into an outer area of the deposition chamber, and that the outlet opening of the outlet conduit between the exterior of the deposition chamber and a central area the Chamber of Deputies opens. This will be the desired Cyclone flow realized in a particularly effective manner.

A further advantageous embodiment of the invention is characterized in that that the flow guide has baffles, the one of the baffles free central area of the Deposition chamber to the chamber wall, at a distance from the chamber wall ends and a vault in relation to the Flow direction of the process fluid such that indicate the flow of the process fluid is directed to the central area of the deposition chamber. By This design of the baffles will clean the flow Process liquid directed into the central area, the forms a rest zone in which the further treatment of the process fluid by gas or chemicals.

A further advantageous embodiment of the invention is characterized in that that the baffles at their top and bottom ends both in the central area as well as in the outdoor area Retaining rings are connected to each other at the deposition chamber anchored, creating a secure mounting of the guide is achieved in the deposition chamber.

A further advantageous embodiment of the invention is characterized in that the flow guide device has at least two baffles, that of the central area of the deposition chamber, which space is free of the baffles extend to the chamber wall, terminate at a distance from the chamber wall and a curvature with respect to the flow direction the process liquid have such that the flow the process fluid from the outside to the central area of the deposition chamber is headed that the at least two baffles in the flow direction of the flow in the outdoor area immediately in front of the entrance opening lie, and that a cylindrical shell on the circumference of the flow guide is provided extending from one of the two baffles in the flow direction the flow to the other of the two baffles extends. This will be the path of flow from the inlet mouth extended to the central area, allowing more time for the separation of suspended matter and suspended matter from the process fluid is available, reducing the efficiency of the device is improved.

A further advantageous embodiment of the invention is characterized in that that the flow guide via the outlet connected to the deposition chamber, whereby otherwise necessary additional holding emitter can be saved.

A further advantageous embodiment of the invention is characterized in that that the area between the baffles of the central area is freely accessible, which means the central or resting area is extended to the areas between the baffles.

embodiments The invention will be explained in more detail with reference to the drawing. Show it:

1 a schematic representation of a device with a cyclone separator according to a first embodiment of the invention;

2 a schematic representation of a device with a cyclone separator according to a first embodiment of the invention;

3 a schematic representation of an electrode cell with electrodes arranged therein according to an embodiment of the invention;

4 a schematic representation of an electrode cell with electrodes arranged therein according to another embodiment of the invention;

5 a schematic representation of a first embodiment of the baffle arrangement;

6 a schematic representation of a second embodiment of the baffle arrangement; and

7 a schematic plan view of the baffle arrangement according to 6 ,

1 shows a schematic representation of an apparatus with a cyclone separator according to a first embodiment of the invention. The cyclone separator comprises a jacket housing 2 containing a lid funnel as a suspended matter receiving chamber 4 , a bottom hopper as a sediment receiving chamber 6 and a deposition chamber disposed between the lid funnel and the bottom funnel 8th having.

An inlet pipe 10 with an inlet mouth 12 for supplying the process liquid opens in the upper region of the deposition chamber 8th , The inlet mouth 12 can be designed as a tangential slot or pipe inlet or helical or spiral inlet. An outlet pipe 14 with an outlet opening 16 flows into the deposition chamber 8th , The cyclone is designed as Axialfluß- cyclone, in which the inlet port 12 and the outlet opening 16 are arranged in the cyclone housing axially opposite end portions.

In the deposition chamber 8th is a flow director 18 arranged, which regulate the flow of the process fluid from a radially outer area 19 the deposition chamber 8th in a radially inner central area 20 the deposition chamber 8th leads.

The outlet opening 16 the outlet pipe 14 is as a side opening on the outlet pipe 14 formed and discharges in the region of the flow guide 18 between the central area 20 and the outside area 19 into the deposition chamber 8th ,

The inlet mouth 12 the inlet pipe 10 for supplying the process liquid into the deposition chamber opens tangentially into the outer area 19 the deposition chamber 8th , and the outlet opening 16 the outlet pipe 14 flows between the outside area 19 the deposition chamber 8th and the central area 20 the deposition chamber 8th into the deposition chamber 8th ,

Under the sediment receiving chamber 6 is a solids collection chamber 22 arranged with an outlet 24 from the suspended matter collection chamber 4 and an outlet conduit 26 from the sediment collection chamber 6 via a supply line 28 connected is. At the outlet pipe 24 from the suspended matter collection chamber 4 is a vent line 29 intended. The solids collection chamber 22 is via a discharge line 30 with an unloading station 32 connected. The solids collection chamber 22 is with a vent line 39 connected so that it can be vented or vented when the solids collection chamber 22 is sucked off during disposal.

In the inlet pipe 10 is an electrode cell 34 for treating the process fluid by an electric field provided between electrodes of the electrode cell 34 is constructed, as will be described. In the electric cell 34 From the particles introduced with the process liquid agglomerates are formed by the inlet mouth 12 into the deposition chamber 8th arrive and be deposited there in the manner described above.

The solids collection chamber 22 is with a vacuum pump 36 connected via a vacuum line 38 with the upper portion of the solids collection chamber 22 is connected and generate a vacuum in the solids collection chamber can, which for sucking the solids from the suspended matter collecting chamber 4 over the outlet pipe 24 and from the sediment collection chamber via the outlet conduit 26 serves.

Via a dosing pump 37 From a gas source (not shown), gas, for example air or oxygen, is supplied to a distributor ring 40 fed in the lower floor area of the central area 20 is provided. By a metering pump 42 For example, chemicals, especially binders, are transferred from a binder source to the distribution ring 40 fed.

At the deposition chamber 8th is a bypass line 44 with a pump 46 provided, with the bypass line 44 from the entrance of the deposition chamber 8th to the exit region deposition chamber 8th leads, so that the process liquid is repeated through the deposition chamber 8th can be directed. In the bypass line 44 is another electrode cell 48 intended. The bypass line 44 with the electrode cell 48 serves to process fluid for further treatment by an electrode cell 48 to increase the efficiency of the entire facility.

The device described above operates as follows. At the beginning of operation are a valve spool 50 in the outlet pipe 24 the suspended matter deposition chamber 4 and a slider 52 in the outlet pipe 26 the sediment collection chamber 8th closed, as well as a valve spool 54 in the bypass line 44 , The process fluid flows through the inlet line 10 and the electrode cell 34 into the deposition chamber 8th , By the inlet opening 12 is designed as a tangential slot or pipe inlet or helical or spiral inlet is in the deposition chamber 8th generates a swirl flow, whereby the solid portions of the process liquid under the influence of centrifugal force to the wall of the deposition chamber 8th to be moved. Part of the process fluid is passed through the flow director 18 in the central area 20 the deposition chamber 8th directed. As the movement of the solid components in the process liquid slows, the sinks sink into the sinks collection chamber 8th while the suspended matter enters the suspended solids collection chamber 8th float. The outlet mouth 16 is arranged so that the process fluid from the rest zone in the central area 20 can escape. The through the outlet pipe 14 discharged process fluid is cleaned and meets the required limits.

When the suspended matter and sediment from the suspended matter collection chamber 4 or the sediment collection chamber 6 to be withdrawn, is when the vacuum pump 38 the valve 52 and the valve 50 opened one after the other, so that the solids over the line 28 in the solids collection chamber 22 be sucked. After that, the valves 50 . 52 closed again. To remove the solids from the solids collection chamber 22 deduct, becomes a valve 56 in the outlet pipe 30 the solids collection chamber is opened, and the solids can pass through the Abtankstation 32 subtracted from.

2 shows a further embodiment of the device according to the invention. In 2 are parts of the facility that parts in 1 correspond, provided with the same reference numerals, and only the different features will be described.

In the embodiment of 2 is above the suspended matter deposition chamber 4 a master chamber 60 arranged with the inlet pipe 10 via a supply line 62 connected, and the one return line 64 through which in the master chamber 60 existing process liquid in the inlet pipe 10 can be recycled from where the process liquid then the deposition chamber 8th can be supplied.

In the inlet pipe 62 and the outlet pipe 64 the master chamber 60 are valve spools 66 respectively. 68 provided to the master chamber 60 opposite the inlet pipe 10 to shut off. In the inlet pipe 10 is in the flow direction in front of the outlet pipe 64 a pump 70 provided so that the process fluid in the inlet pipe 10 from the deposition chamber 8th into the submission chamber 60 can be pumped back. In the inlet pipe 10 is also a slider 69 proceed to a reflux from the deposition chamber 8th in the master chamber 60 shut ui up. With this arrangement, the process liquid can be supplied from the inlet to either the original chamber 60 or directed to the deposition chamber.

When the process fluid from the inlet pipe 10 directly to the deposition chamber 8th to be directed, the valve 70 opened and the valves 66 . 68 will be closed. The master chamber 60 serves on the one hand for storing process fluid in the event of an irregular attack of the same and on the other hand as an extension of the processor space of the device, as will be described below.

In the embodiment of 2 is a bypass line 72 provided a connection between the master chamber 60 and the deposition chamber 8th manufactures. In the bypass line 72 is a valve spool 74 provided, the master chamber 60 from the deposition chamber 8th separates. In the bypass line 72 is also a pump 76 provided that is capable of the process liquid either from the master chamber 60 to the deposition chamber 8th or from the deposition chamber 8th to the master chamber 60 to pump. Finally, in the bypass line 72 again an electrode cell 48 intended.

In the embodiments described above, the feed chamber (where provided) and the suspended matter receiving chamber and the sediment receiving chamber and the solid collecting chamber and the deposition chamber are each formed as a modular units assembled in situ with a mounting and clamping rings 77 . 78 be connected to each other.

The operation of the facilities according to 2 corresponds to the operation of the device according to 1 with the exception that the storage tank 60 involved in the process processing area of the facility. When the pump 76 in the bypass line 72 is operated so that process liquid from the deposition chamber 8th into the master chamber via the electrode cell 48 First, the process liquid is processed for further processing by the electrode cell 48 secondly, that of the submission chamber 60 then returned to the circulation process fluid again the entire processing through the deposition chamber 8th subjected. This achieves high efficiency of the device.

3 shows an embodiment of an electrode cell 80 in the inlet pipe 10 or the bypass lines 44 respectively. 72 the embodiments described above can be inserted. The electrode cell 80 includes a tubular housing 82 , one on the inner circumference of the tubular housing 82 arranged electrode 84 and a central, axially in the tubular housing 82 arranged, rod and wire-shaped electrode 86 , The electrode 84 may, as shown, be cylindrical or be a spiral, which are along the inner wall of the tubular housing 82 extends.

The electrodes 84 and 86 Beyond isolation missions 88 . 90 kept the openings 92 . 94 . 96 . 98 so that the process fluid between the electrodes 84 and 86 can flow through it. The electrode cell 80 can over flanges 100 . 102 in the inlet pipe 10 be used. The electrodes have high voltage terminals (not shown), as is common in such cells. The electrodes 84 . 86 the electrode cell 80 are isolated from the process fluid.

4 shows another embodiment of an electrode cell 110 that a housing 112 with an inlet 114 and an outlet nozzle 116 , In the case 112 are a total of seven electrode plates 118 - 128 via insulation parts, for example the insulation part 130 stored. The channels between the electrode plates 120 . 122 . 124 . 126 and 128 are on the at the outlet 116 lying end of the electrode cell, as well as the channels between the electrode plates 118 . 120 . 122 and the electrode plates 126 . 128 . 130 at the inlet pipe 114 lying end of the electrode cell 110 are closed. The space between the electrode plates 118 and 120 such as 128 and 130 at the outlet port 116 lying end and the spaces between the electrode plates 122 . 124 and 126 at the inlet pipe 114 lying end of the electrode cell are open.

Finally, the electrode plates 120 and 128 at the inlet end and the electrode plates 122 and 126 at the outlet end flow openings 134 . 136 . 138 . 140 on. As a result, the inflowing process fluid is guided in a serpentine manner between the electrode plates, so that the overall result is a larger electrode surface with respect to the process fluid and thus a correspondingly higher treatment of the process fluid.

The electrode plates 122 - 126 are held over insulating inserts, such as at 132 is shown. The electrode cell 80 can over the neck 114 . 116 in the inlet pipe 10 be used. The electrodes have terminals for a high voltage (not shown), as is usual in such cells, and the electrodes of the electrode cell 110 are isolated from the process fluid.

5 shows a schematic representation of the flow guide 18 , which in the embodiments of the inventive device according to 1 and 2 is used. The flow director 18 has baffles 150 . 152 . 154 . 156 from a central area free of the baffles 20 the deposition chamber 8th extend to the chamber wall and at a distance from the wall of the deposition chamber 8th ends, the baffles 150 . 152 . 154 . 156 run from the central area 20 the deposition chamber 8th to the chamber wall of the deposition chamber and terminate at a distance from the chamber wall, the outside area 19 for one of the inlet opening 12 incoming, circulating flow, as shown by the curve R, is kept free. The baffles 150 . 152 . 154 . 156 be from Halteringen 151 . 153 and 155 and a distribution ring 158 , which also serves as a retaining ring held. Thus, the baffles 150 . 152 . 154 . 156 at their up and down ends both at the central area 20 as well as in the outdoor area 19 through the Hal Tied together, these are anchored to the deposition chamber.

The baffles 150 . 152 . 154 . 156 have a curvature with respect to the flow direction of the process liquid such that the flow of the process liquid to the central region 20 the deposition chamber 8th as far as the process liquid flow from the baffles 150 . 152 . 154 . 156 is detected. The baffles 150 . 152 . 154 . 156 cause a slowing of the process fluid to stabilize the vortex, resulting in the formation of a stable vortex and a well-centered rotary flow to achieve a high degree of separation. The central area 20 becomes a relaxation area.

Through the flow guide in the middle of the deposition chamber 8th a swirl flow is generated, in which the particles (sinking and suspended matter) under the influence of centrifugal force to the wall of the deposition chamber 8th and the baffles get to where they slow down and into the sediment collection chamber 6 sink or into the suspended matter collection chamber 4 ascend and be discharged.

Finally, in 5 a distribution ring 158 shown on which the lines from the gas metering pump 42 and the binder dosing pump 38 (not shown). The distributor ring has corresponding openings (not shown) through which the gas and the chemicals can enter the process liquid, wherein 5 schematically the gas bubbles are shown. The flow direction is in 5 indicated by the circle R and the corresponding arrows. As shown, the areas between the baffles are freely accessible from the central area.

6 is a schematic representation of a second embodiment of the baffle arrangement 160 , In 6 are parts of the facility that parts in 5 correspond, provided with the same reference numerals, and only the different features will be described.

In 6 are the two baffles 150 . 156 the flow guide 160 , which are in the flow direction of the flow in the outer region immediately in front of the inlet opening, through a cylindrical shell 162 on the circumference of the flow guide 160 connected, extending from the baffle 156 in the flow direction of the flow to the baffle 150 extends. The process footing can thus only between the two baffles 150 and 156 in the central area 20 inflow, so that a larger proportion of the particles contained in the process foot already in the outer area on the way from the inlet mouth to the space between the baffles 150 and 156 into the suspended matter receiving chamber 4 and the sediment receiving chamber 6 can be discharged.

The flow director 160 is via the outlet pipe with the deposition chamber 8th connected. As shown, the areas between the baffles are freely accessible from the central area.

7 is a schematic plan view of the baffle arrangement 160 to 6 , The coat 162 is between the baffles 150 and 156 connected by bridges, of which the bridge 164 at the lower end of the flow director 160 is shown. The 7 also clarifies the position of the inlet pipe 10 with the inlet opening 12 and the location of the outlet pipe 14 with the outlet opening 16 with respect to the flow director 160 and thus in relation to the deposition chamber 8th ,

Out From the foregoing, it can be seen that the invention is a compact one Device for the treatment of high effluents Efficiency is. In the context of the embodiments are Deviations from the detailed description possible, the scope of the invention being indicated by the attached Claims is given.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• WO 2007/115179 [0006]
• EP 1174394 [0007]
• - DE 241369 [0008]
• WO 2005/105679 [0009]
• WO 92/05853 [0010]

Claims (28)

A device for separating particles from process liquids, comprising: a cyclone separator having a housing with a deposition chamber ( 8th ), a suspended matter receiving chamber ( 4 ) and a sediment receiving chamber ( 6 ), an inlet line ( 10 ) with an inlet mouth ( 12 ) for supplying the process liquid into the deposition chamber ( 8th ) and one into the interior of the deposition chamber ( 8th ) discharging outlet ( 14 ) with an outlet opening ( 16 ), one in the deposition chamber ( 8th ) provided flow guide ( 18 ; 160 ), the flow of the process fluid from a radially outer, from the flow guide ( 18 ; 160 ) outdoor area ( 19 ) of the deposition chamber ( 8th ) in a radially inward, from the flow guide ( 18 ; 160 ) free area ( 20 ) of the deposition chamber ( 8th ) leads. Device according to claim 1, characterized in that below the sediment receiving chamber ( 6 ) a solid collecting chamber ( 22 ) arranged with outlet pipes ( 24 . 26 ) from the suspended matter receiving chamber ( 4 ) and the sediment receiving chamber ( 6 ) and a solids discharge line ( 30 ) having. Device according to claim 2, characterized in that in the upper region of the solids collecting chamber ( 22 ) a vacuum line ( 38 ) connected to a vacuum pump ( 36 ) connected is. Device according to claim 1, characterized in that above the suspended matter receiving chamber ( 4 ) a master chamber ( 60 ) arranged with the inlet line ( 10 ) and via an outlet line ( 14 ) with the deposition chamber ( 8th ) is to be connected. Device according to claim 4, characterized in that the deposition chamber ( 8th ) has a cylindrical chamber wall. Device according to one of claims 1 to 4, characterized in that the suspended matter receiving chamber ( 4 ) are frusto-conical. Device according to claim 6, characterized in that the suspended matter receiving chamber ( 4 ) in the master chamber ( 60 ) having a cylindrical outer wall is inserted. Device according to one of claims 1 to 4, characterized in that the sediment receiving chamber ( 6 ) are frusto-conical. Device according to claim 8, characterized in that the sediment receiving chamber ( 6 ) in the solids collecting chamber ( 22 ) having a cylindrical outer wall is inserted. Device according to one of claims 5 to 9, characterized in that the master chamber ( 60 ) as well as the suspended matter receiving chamber ( 4 ) and the sediment receiving chamber ( 6 ) as well as the solids collecting chamber ( 22 ) and the deposition chamber ( 8th ) are each formed as modular units, which are to be assembled during assembly on site, preferably with clamping rings ( 77 . 78 ) are to be connected to each other. Device according to claim 1, characterized in that the suspended matter receiving chamber ( 4 ) a vent ( 29 ) for venting gaseous constituents from the suspended matter receiving chamber ( 4 ) having. Device according to claim 1, characterized in that a supply device ( 42 ) is provided for chemicals for the treatment of the process liquid in a central region of the cyclone separator. Device according to claim 1, characterized in that a gas supply device ( 37 ) is provided for a gas, in particular air or oxygen, for the treatment or flotation of the process liquid in a central region of the cyclone separator. Device according to claim 12 or 13, characterized in that the gas supply device ( 37 ) and / or the supply device ( 42 ) for chemicals with a distributor ring ( 40 ) connected in the central area ( 20 ) of the cyclone separator and has outlet openings for the gas or the chemicals. Device according to claim 1, characterized in that a bypass line ( 44 ) with a pump from the inlet region of the deposition chamber ( 8th ) of the cyclone separator is provided to the outlet region of the cyclone separator, wherein the process liquid is to be repeatedly passed through the cyclone separator. Device according to claim 4, characterized in that a bypass line ( 72 ) with a pump from the deposition chamber ( 8th ) of the cyclone separator to the master chamber ( 60 ) of the cyclone separator is provided. Device according to one of the preceding claims, characterized in that at least one electrode cell ( 80 ; 110 ) located in the inlet pipe ( 10 ) for the treatment of the process liquid is provided by an electric field between electrodes of the electrode cell ( 80 ; 110 ) is to build up. Device according to claim 15 or 16, characterized in that in the bypass line ( 44 respectively. 72 ) an electrode cell ( 80 respectively. 110 ) is integrated. Device according to claim 17 or 18, characterized in that the inlet line ( 10 ) or the bypass line is a pipeline, and that an electrode ( 84 ) on an inner surface of the pipeline and a counter electrode ( 86 ) is arranged coaxially in the pipeline via an insulator, Device according to claim 17 or 18, characterized in that the electrode cell ( 80 ; 110 ) into the inlet line ( 10 ) or the bypass line is inserted and has a jacket which has a larger interior space than the inlet line ( 10 ) or the bypass line, and that the electrodes ( 122 - 130 ) form a serpentine flow path for the process fluid. Device according to claim 19 or 20, characterized in that the electrodes of the electrode cell ( 80 ; 110 ) are isolated from the process fluid. Device according to one of claims 19 to 21, characterized in that the electrodes of the electrode cell to apply a high voltage Device according to claim 1, characterized in that the inlet mouth ( 12 ) of the inlet pipe ( 10 ) for supplying the process liquid into the deposition chamber ( 8th ) tangentially into an outdoor area ( 19 ) of the deposition chamber ( 8th ) and that the outlet opening ( 16 ) of the outlet line ( 14 ) between the outdoor area ( 19 ) of the deposition chamber ( 8th ) and a central area ( 20 ) of the deposition chamber ( 8th ) opens. Device according to claim 1 and 23, characterized in that the flow guide ( 18 ) Baffles ( 150 . 152 . 154 . 156 ), that of the baffles ( 150 . 152 . 154 . 156 ) free central area ( 20 ) of the deposition chamber ( 8th ) to the chamber wall, terminate at a distance from the chamber wall and have a curvature with respect to the flow direction of the process liquid such that the flow of the process liquid from the outside area ( 19 ) to the central area ( 20 ) of the deposition chamber ( 8th ). Device according to claim 1 and 23, characterized in that the baffles ( 150 . 152 . 154 . 156 ) at their upper and lower ends both at the central area ( 20 ) as well as in the outdoor area ( 19 ) are connected to each other by retaining rings, which at the deposition chamber ( 8th ) are anchored. Device according to claim 1 and 23, characterized in that the flow guide ( 160 ) at least two baffles ( 150 . 156 ), which is independent of the central region ( 20 ) of the deposition chamber ( 8th ) to the chamber wall, terminate at a distance from the chamber wall and have a curvature with respect to the flow direction of the process liquid such that the flow of the process liquid from the outside area ( 19 ) to the central area ( 20 ) of the deposition chamber ( 8th ), that the at least two baffles ( 150 . 156 ) in the flow direction of the flow in the outer region ( 19 ) immediately in front of the entrance opening ( 12 ), and that a cylindrical shell ( 162 ) at the periphery of the flow guide ( 160 ) is provided which extends from one of the two baffles in the flow direction of the flow to the other of the two baffles. Device according to claim 1 and 23, characterized in that the flow guide ( 18 ; 160 ) via the outlet line ( 14 ) with the deposition chamber ( 8th ) connected is. Device according to claim 1 and 23, characterized in that the area between the baffles ( 150 . 152 . 154 . 156 ) from the central area ( 20 ) is freely accessible.