EP3137220A1 - Hydrodynamische schwerstoffabtrennung einer aufschlämmung - Google Patents
Hydrodynamische schwerstoffabtrennung einer aufschlämmungInfo
- Publication number
- EP3137220A1 EP3137220A1 EP16728658.2A EP16728658A EP3137220A1 EP 3137220 A1 EP3137220 A1 EP 3137220A1 EP 16728658 A EP16728658 A EP 16728658A EP 3137220 A1 EP3137220 A1 EP 3137220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- storage chamber
- classifying
- actuator
- water
- rinse water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/32—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions using centrifugal force
- B03B5/34—Applications of hydrocyclones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
- B03B13/02—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects using optical effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
- B03B13/04—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects using electrical or electromagnetic effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
Definitions
- the invention relates to a device for the separation of heavy materials from a slurry of components under defencel density and different particle structure.
- a wet mechanical treatment of mixtures e.g. Waste
- mechanically separated waste fractions or commercial residues create slurries, e.g. Pulps or suspensions containing still relevant quantities of water-sedimentable and sharp-edged substances, e.g. Gravel, Spl it, stones, ceramic or glass fragments or metal lpelle contain, in downstream process stages operating problems, e.g. Deposits or wear.
- the consequences are e.g. Sediment layers in containers, which require a costly emptying after a few years of operation, a laying of pipelines, which cause a high cleaning effort, or due to the most abrasive properties of these substances caused severe wear of the machinery.
- Organic wastes suitable for fermentation may contain mineral heavy materials of 4% by weight (Riebler, H., Hoppenheidt, K., Haschsch, P., Kottmair, A., Nrichter, R., Nordsieck, H., M ., Mücke, W., Swerev (2000) Ful l scale co-digestion of organic waste, Water Science & Technology 41, 1 95-202).
- Municipal biowaste contains relevant quantities of mineral heavy materials such as stones, broken glass, split or gravel or sand, which according to the investigations of Kranert et. al. (Kranert, M., Hartmann A., Graul S. (1,999) Determination of sand content in digestate. In: W.
- heavy material separators are used.
- these heavy material separators must also minimize the discharge of the other constituents which are present in the slurry and are to be utilized in the downstream process stages, for example fermentable organic substances. This can be done by a combination of hydrocyclone and classifying tube, which is located in the lower reaches of the hydrocyclone, for discontinuous discharge of the Separated heavy materials can be achieved.
- rinsing liquid is frequently supplied to the classifying tube. As a result, a countercurrent is generated in the classifying tube, which frees the separated heavy materials from the other Bestan constitution the slurry.
- Such a device is described in DE 1 95 05 073 A1 with a flat-bottomed hydrocyclone for separating heavy materials from a slurry which was produced from waste materials.
- the flat-bottomed cyclone is followed by a classifying pipe to increase the selectivity of the heavy material separator.
- the separated heavy materials are collected in the course of the classifying pipe by means of a lock system with integrated chamber and discharged discontinuously. If, following emptying of the chamber, the shut-off valve is opened to the classifying tube, the content of the classifying tube and part of the contents of the hydrocyclone are discharged into the chamber at one go. On the other hand, it can happen that the heavy substances contained in the chamber become caked and thus make it difficult, if not impossible, to discharge them from the chamber.
- the rinsing water flow in relation to the desired separation of the fractions have mutually opposite effects: reducing the rinse water stream leads to an improved separation of the easily sedimentable solids from the suspension, but increases the proportion the biologically recoverable components in the separated heavy fraction. These are then removed from the downstream process stages for the utilization of the suspension.
- Increasing the rinse water flow h has a counteracting effect because although the proportion of the biologically recoverable constituents in the separated heavy fraction falls, the separation of the easily sedimentable constituents from the suspension is deteriorated.
- Fig. 1 shows this opposite effect on the basis of operating results of a process step with hydrodynamic heavy ash separation in a fermentation plant for 75,000 Mg / a organ ischem Abbib le.
- process water In order to limit the demand for fresh water and, if I also limit the sewage infiltration, it is important - especially for reasons of economy and ecology - to use process water as flushing water, which is recirculated in the system (process water). This requires a process step that provides the process water in terms of pressure levels in the heavy material separator under a sufficiently high pressure. U nder the aspect of cost and space requirements, the diameters of the process water lines must be limited.
- process water demand peaks occur in the heavy material separator itself as well as in other upstream or downstream units of the wet mechanical processing plant. As a result, there is always considerable pressure fluctuations in the process water supply of the classifying tube.
- the object of the invention is now to improve the degree of separation of the device and to reduce the pollution of the separated fraction.
- This object is achieved by a device according to claim 1, or by a method according to claim 1 3.
- the basic idea of the invention is, taking into account the above mari lderten effects of Spü lwasserstromes that les depending on the requirements profi for plant operation, an optimum amount and pressure of the flushing water flow to the classifying tube determined and adjusted according to the flow rate of the rinse water. Furthermore, it is part of the invention to minimize the flushing water consumption to the storage chamber.
- the control technique of the present invention takes into account the above-described significant pressure fluctuations in the rinse water supply of the classifier tube and the storage chamber. Thereby, the negative impact on the separation efficiency can be eliminated, whereby the separation quality of the separated heavy materials increases and a reduced Spülement site is the result.
- the adjustment of the flushing water flow relates, on the one hand, to the inlet to the classifying pipe and, on the other hand, to the storage chamber separated from the classifying pipe, into which the separated heavy materials are introduced.
- both the classifying pipe and the separate storage chamber are subjected to rinsing water. This is done in such a way that the inlet to the classifying pipe is regulated and the inlet to the storage chamber is controlled. While the control determines a comparison between the actual state and the target state and switches an actuator in response thereto, the control of the inlet to the storage chamber focuses on the detection of the actual state to switch a corresponding actuator.
- the heavy material separator according to the invention with a detection of Schwerstoff Strukturl lstandes in the storage chamber to initiate their emptying and a detection of Spülwasser overflow at their Be somnol development equipped with rinse water.
- the emptying of the storage chamber takes place only when the maximum filling capacity of heavy materials in the storage chamber is determined by measurement.
- a full Fül ment the storage chamber is always guaranteed and I therefore minimized the number of required emptying operations.
- the filling of the storage chamber with the rinse water is terminated only when process water is detected in the overflow of the storage chamber. Both features lead to a minimum need for rinse water.
- This process of filling the chamber with process water can also be time-controlled and ensure a measured volumetric storage chamber.
- the controller must be aware of the following facts:
- the emptying of the storage chamber In order to avoid a backflow of the heavy materials into the classifying pipe, which can cause a clogging of the classifying pipe, the emptying of the storage chamber must take place sufficiently early. As a result, the storage chamber is frequently not completely filled with separated heavy materials when emptied. In order to be able to separate off the same amount of heavy materials, more emptying / filling cycles are therefore necessary. Since the storage chamber must be flushed with rinse water before opening the shut-off valve to the classifying pipe, a higher number of draining and filling cycles leads to a higher consumption of rinsing water.
- the emptying of the storage chamber is initiated by the detection of the maximum filling level of heavy materials and the supply of process water when filling the emptied storage chamber by detecting the overflow of process water from the chamber finished.
- the emptying of the storage chamber is carried out after detection of the maximum Schwofoff Stahles by closing the shut-off valve to the classifying pipe and opening the lower shut-off valve of the storage chamber.
- the storage chamber is timed short rinse water pulses supplied to prevent caking of the bed of heavy materials in the storage chamber.
- the bed when opening the chamber vol lentlysortedfal len or be removed.
- Fig. 2 shows a regulated flushing water flow to the classifying tube when using a process water containing suspended matter, with the use of a disk Stel lorgans with integrated flow measurement
- FIG. 3 shows a schematic of an embodiment of a hydrodynamic heavy material separation according to the invention
- FIG. 4 shows guide jump responses of the control loop at a flow rate of 500 l / h for fresh water and process water containing solids.
- the process water for rinsing purposes is initially generated in-process by means of a solid-liquid separation during the treatment of mixtures.
- the process water for rinsing purposes is initially generated in-process by means of a solid-liquid separation during the treatment of mixtures.
- the processing and recycling of organic waste producing a low-solids process water is problematic. This is because suspensions of organic waste contain fibrous as well as very fine-grained slimy constituents with a small difference in density.
- the process water production provides a rinse water with a considerable content of suspended matter of 1 to 10 g / l.
- concentration of suspended matter in the process water is often in the range of 0.5 to 4 g / l.
- actuators In order to achieve a uniform rinsing water supply, the choice of the actuator depending on the Aufschlämmanteils in the process water can be crucial. This is mainly due to a random partial laying by suspended in the process water substances in the actuator.
- actuators have discs of disks, which are adjusted against each other via an axis and the opposite movement of the free passage continuously changed, pinch valves, ball sector valves or ball valves proven.
- FIG. 3 shows a schematic of an embodiment according to the invention of a hydrodynamic heavy material separation consisting of hydrocyclone (1), classifying pipe (2) and storage chamber (3).
- the rinsing water flow to the classifying pipe (4) is regulated and controlled to the storage chamber (5).
- the adjustment of the rinsing water upstream into the classifying tube is effected by means of a leveling element (6), which is not easily laid by suspended substances and has a self-cleaning effect, as mentioned above.
- the supply of process water when filling the emptied storage chamber is controlled by a detection of the overflow of process water (7) from the chamber.
- a detection of the overflow of process water (7) from the chamber To control the rinsing water flow the above mentioned as suitable Stel lgl ieder said elements are combined in a preferred embodiment with a flow meter for the rinse water (8). This flow meter must be suitable for solids containing water flows.
- the detection of the overflow of solids-containing process water (7) for Fül len the chamber can be done by means of capacitive proximity switch or infrared light barrier.
- Ball sector valves are even more superior to a ball valve for such controls of solids containing streams because the seals in the ball sector valve are less exposed to the abrasive heavies.
- Motor control valves in a flat rotary valve design in the throttle body allow a linear flow change.
- such valves represent a proportional-regulating actuator, which ensures a constant flushing water flow even with solids-containing process water.
- the control is designed so that the previously assumed valve position is maintained in the event of a power failure.
- FIG. 2 shows the operating result of the hydrodynamic heavy material separator with controlled rinsing water flow to the classifying tube when using a process water containing suspended substances, and a flat rotary valve throttle device in combination with an upstream magnetic-inductive through-flow. flow measurement operated. Thanks to these system components, the supply of solids-containing process water to the classifying pipe was kept relatively constant at the setpoint.
- the actuator in an advantageous embodiment is deliberately driven up at short notice in order to completely relieve possible misplacement. This short-term full opening is time-controlled and favors the Einregeln a constant flushing water flow.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16728658T PL3137220T3 (pl) | 2015-07-28 | 2016-06-03 | Hydrodynamiczne oddzielanie substancji ciężkich szlamu |
HRP20171339TT HRP20171339T1 (hr) | 2015-07-28 | 2017-09-06 | Hidrodinamičko uklanjanje teških materijala iz mulja |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015112254.5A DE102015112254A1 (de) | 2015-07-28 | 2015-07-28 | Hydrodynamische Schwerstoffabtrennung einer Aufschlämmung |
PCT/EP2016/062601 WO2017016718A1 (de) | 2015-07-28 | 2016-06-03 | Hydrodynamische schwerstoffabtrennung einer aufschlämmung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3137220A1 true EP3137220A1 (de) | 2017-03-08 |
EP3137220B1 EP3137220B1 (de) | 2017-08-23 |
Family
ID=56119475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16728658.2A Active EP3137220B1 (de) | 2015-07-28 | 2016-06-03 | Hydrodynamische schwerstoffabtrennung einer aufschlämmung |
Country Status (12)
Country | Link |
---|---|
US (1) | US10173224B2 (de) |
EP (1) | EP3137220B1 (de) |
JP (1) | JP6767473B2 (de) |
KR (1) | KR20180033176A (de) |
CN (1) | CN107835717B (de) |
CA (1) | CA2986079C (de) |
DE (1) | DE102015112254A1 (de) |
DK (1) | DK3137220T3 (de) |
ES (1) | ES2640014T3 (de) |
HR (1) | HRP20171339T1 (de) |
PL (1) | PL3137220T3 (de) |
WO (1) | WO2017016718A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023016596A1 (de) | 2021-08-11 | 2023-02-16 | Bta International Gmbh | Verfahren und vorrichtung zur hydrodynamischen schwerstoffabtrennung mit hohem wirkungsgrad |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3025806B1 (fr) * | 2014-09-15 | 2019-09-06 | Bigarren Bizi | Procede de traitement et d'extraction de dechets electroniques en vue de la recuperation des constituants inclus dans de tel dechets |
DE102018211197A1 (de) * | 2018-07-06 | 2020-01-09 | Thyssenkrupp Ag | Automatische Zyklonentleerung |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3017767A (en) * | 1956-12-06 | 1962-01-23 | Calor & Sjogren Ab | Automatic control of the concentration in suspensions such as cellulose, paper pulp, and the like |
US3421622A (en) * | 1965-08-19 | 1969-01-14 | Nichols Eng & Res Corp | Cleaning and deaerating paper pulp suspensions |
FR1555551A (de) * | 1967-07-05 | 1969-01-31 | ||
US3543932A (en) * | 1967-12-29 | 1970-12-01 | Nichols Eng & Res Corp | Vortex chamber reject control |
US3543931A (en) * | 1968-02-29 | 1970-12-01 | Nichols Eng & Res Corp | Multiple cyclone assembly |
US3869559A (en) * | 1970-04-13 | 1975-03-04 | Thomas P Clark | Process for separation and cleaning of edible vegetable products |
US3989628A (en) * | 1975-01-03 | 1976-11-02 | Dorr-Oliver Incorporated | Degritting and fiber removal system |
US4267048A (en) * | 1979-03-12 | 1981-05-12 | Oishikikai Mfg. Co., Ltd. | Equipment for separating foreign matter from liquid papermaking materials |
GB8327218D0 (en) * | 1983-10-12 | 1983-11-16 | Beloit Corp | Reject handling in cyclones &c |
DE3469511D1 (en) * | 1984-06-02 | 1988-04-07 | Sulzer Ag | Process and apparatus for the separation of biomass and inorganic components from the methane reactor sludge of an anaerobic waste water treatment plant |
US4571301A (en) * | 1984-09-19 | 1986-02-18 | Inskeep Jr Eugene L | Method and apparatus for cleaning chemical/water solutions |
JPS62129164A (ja) * | 1985-11-28 | 1987-06-11 | Mitsui Toatsu Chem Inc | 重合体粉末と搬送ガスの分離方法 |
DE19505073A1 (de) | 1995-02-15 | 1996-08-22 | Recycling Energie Abfall | Flachbodenhydrozyklon |
DE10343788A1 (de) * | 2003-09-22 | 2005-04-28 | Hans Huber Ag Masch & Anlagenb | Vorrichtung zum Abtrennen von organischem Material von anorganischem Material |
ES2255807B1 (es) | 2004-04-16 | 2008-06-01 | Malaquias Molina Mata | Sistema combinado de filtracion y recuperacion de fluidos. |
CN201287084Y (zh) * | 2008-10-11 | 2009-08-12 | 李龙 | 延迟焦化冷焦水旋流过滤装置 |
DE102009057079A1 (de) * | 2009-02-05 | 2010-08-19 | Akw Apparate + Verfahren Gmbh | Hydrozyklonanordnung, Unterlaufdüse mit Ansatz- oder Verlängerungsstück für einen Hydrozyklon sowie Verfahren zum Betreiben einer Hydrozyklonanordnung |
-
2015
- 2015-07-28 DE DE102015112254.5A patent/DE102015112254A1/de not_active Withdrawn
-
2016
- 2016-06-03 JP JP2018504951A patent/JP6767473B2/ja active Active
- 2016-06-03 ES ES16728658.2T patent/ES2640014T3/es active Active
- 2016-06-03 WO PCT/EP2016/062601 patent/WO2017016718A1/de active Application Filing
- 2016-06-03 CA CA2986079A patent/CA2986079C/en active Active
- 2016-06-03 US US15/564,266 patent/US10173224B2/en active Active
- 2016-06-03 KR KR1020187001601A patent/KR20180033176A/ko not_active Application Discontinuation
- 2016-06-03 DK DK16728658.2T patent/DK3137220T3/en active
- 2016-06-03 CN CN201680040847.XA patent/CN107835717B/zh active Active
- 2016-06-03 PL PL16728658T patent/PL3137220T3/pl unknown
- 2016-06-03 EP EP16728658.2A patent/EP3137220B1/de active Active
-
2017
- 2017-09-06 HR HRP20171339TT patent/HRP20171339T1/hr unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023016596A1 (de) | 2021-08-11 | 2023-02-16 | Bta International Gmbh | Verfahren und vorrichtung zur hydrodynamischen schwerstoffabtrennung mit hohem wirkungsgrad |
DE102021004122A1 (de) | 2021-08-11 | 2023-02-16 | Bta International Gmbh | Verfahren und Vorrichtung zur hydrodynamischen Schwerstoffabtrennung mit hohem Wirkungsgrad |
Also Published As
Publication number | Publication date |
---|---|
PL3137220T3 (pl) | 2018-01-31 |
DK3137220T3 (en) | 2017-10-23 |
CA2986079A1 (en) | 2017-02-02 |
US20180133721A1 (en) | 2018-05-17 |
CA2986079C (en) | 2023-03-07 |
KR20180033176A (ko) | 2018-04-02 |
HRP20171339T1 (hr) | 2017-11-03 |
DE102015112254A1 (de) | 2017-02-02 |
CN107835717B (zh) | 2020-09-15 |
EP3137220B1 (de) | 2017-08-23 |
JP6767473B2 (ja) | 2020-10-14 |
JP2018526199A (ja) | 2018-09-13 |
ES2640014T3 (es) | 2017-10-31 |
CN107835717A (zh) | 2018-03-23 |
WO2017016718A1 (de) | 2017-02-02 |
US10173224B2 (en) | 2019-01-08 |
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