EP2111436A1 - Method and device for separating mixtures - Google Patents

Method and device for separating mixtures

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Publication number
EP2111436A1
EP2111436A1 EP08717388A EP08717388A EP2111436A1 EP 2111436 A1 EP2111436 A1 EP 2111436A1 EP 08717388 A EP08717388 A EP 08717388A EP 08717388 A EP08717388 A EP 08717388A EP 2111436 A1 EP2111436 A1 EP 2111436A1
Authority
EP
European Patent Office
Prior art keywords
molten salt
basin
bitumen
salt
oil
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
Application number
EP08717388A
Other languages
German (de)
French (fr)
Other versions
EP2111436B1 (en
Inventor
Oskar Blöchlinger
Roger Reichmuth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
REICHMUTH, ROGER
Original Assignee
Blochlinger Oskar
Reichmuth Roger
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Publication date
Application filed by Blochlinger Oskar, Reichmuth Roger filed Critical Blochlinger Oskar
Publication of EP2111436A1 publication Critical patent/EP2111436A1/en
Application granted granted Critical
Publication of EP2111436B1 publication Critical patent/EP2111436B1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C3/00—Working-up pitch, asphalt, bitumen
    • C10C3/007—Working-up pitch, asphalt, bitumen winning and separation of asphalt from mixtures with aggregates, fillers and other products, e.g. winning from natural asphalt and regeneration of waste asphalt
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof

Definitions

  • the present invention relates to a method and apparatus for separating mixtures, e.g. the separation of road asphalt pavement break-up in bitumen and the remaining constituents or for separating oil sands in oil and sand.
  • bitumen contained fulfills no task.
  • the remaining part of the bitumen-containing surfacing material is added to the new material on surfacing plants up to a maximum of 50%.
  • the restriction to a maximum of 50% is based on the fact that the composition of the material to be dredged is not precisely defined.
  • bitumen reclamation is required for environmental and economic reasons.
  • Object of the present invention is therefore to provide a method for the separation of mixtures such as road surface break-up in bitumen and stone material or for the separation of oil sand and sand, or the rest of the rock.
  • This method is characterized according to the invention by the features in the characterizing part of the independent claim 1.
  • the device for carrying out the method has the features characterizing part of claim 7.
  • the molten salt has a temperature of greater than 130 0 C, and for the molten salt, a nitrite-free, heat-conducting salt can be used with a low melting point.
  • Road surface breakup is passed through the molten salt, where the bitumen dissolves from the stone material, floats and is skimmed off by the salt melt. At the end of the passage, the sunken in the molten salt, virtually bitumen-free stone material is discharged.
  • the molten salt is supplied.
  • the present invention relates to a device for carrying out said method, which device according to the invention is characterized by a heatable, preferably channel-shaped basin for receiving and liquefying a nitrite-free, heat-conducting salt with a low melting point, preferably a mixture of UNO3 / KNO3
  • Lithium nitrate / potassium nitrate for the preparation of a molten salt, upstream with the pool supply means for the road surface break with predetermined refractive power, arranged in the basin conveyor screw to transport the road surface break through the molten salt and arranged at the end of the passage of the basin Abraumsch for skimming and forwarding of the dissolved stone material from the departure and floating on the molten salt bitumen, as well as at the end of the passage of the basin arranged Austragungsstoff for sunken in the molten salt bitumen-free stone material.
  • an advantageous embodiment is that salt mixture fed through a metering device the trough-shaped basin to compensate for the reduced by skimming and discharging the volume of molten salt.
  • the metering device can be controlled and regulated via sensors which measure the level and associated electronics.
  • Temperature of the melt decreases due to natural heat loss but above all by the supply of relatively cold road eruption but also by skimming the bitumen and discharging ie conveying out the stone material.
  • the temperature of the melt is controlled by temperature sensors, which measure this temperature and with associated electronics, the heating of the melt.
  • an electronic control and regulating system is present, which the metering device for the melt, the heater, the feed system for outbreak, the overburden for the top floating bitumen, the discharge device for the stone material from the basin or only some of it regulates and controls.
  • the sand or rock sinks to the bottom of the basin and the oil floats on the melt. Accordingly, the oil that floats on the melt must be drained off and the sand or rock sunken on the ground must be pumped out of the basin.
  • FIG. 1 shows a block diagram of the device according to the invention
  • FIG. 2 shows a section through the device along the section line II - II in FIG. 1.
  • the device for recovering bitumen from pavement (asphalt) riser comprises a heatable, preferably channel-shaped basin 1 for receiving and liquefying a nitrite-free, low melting point heat-conducting salt, preferably a mixture of UNO3 / KNO3 (lithium nitrate / potassium nitrate), for producing the Molten salt 2. It is advantageous if the molten salt is brought to a temperature of about 180 to 200 0 C in order to dissolve the bitumen as completely as possible from the other components of the road surface departure (usually minerals).
  • the basin 1 are one or more feeders 3, 4 for the Road surface break-up if possible with predetermined refractive power, preferably up to 32 mm, upstream, which include a silo 3 and a discharge belt 4.
  • leash screw conveyor 5 is arranged for transporting the road surface breakup 30 through the molten salt 2.
  • one or more overburden facilities in the form of a overburden belt 6 are arranged for skimming and forwarding of the dissolved stone material from the departure at the end of the passage of the basin
  • one or more discharge devices in the form of an ascending screw conveyor are arranged for the bitumen-free stone material 9 which has sunk in the molten salt.
  • the salt 20 can be supplied to the trough-shaped basin 1 via a metering device 10, this metering device being controlled and regulated for volume compensation of the volume of molten salt reduced by skimming and discharging via filling-in sensor 11 in the basin 1. Further, the heater 12 for the heatable trough-shaped basin 1 for temperature compensation of the lowered by the skimming and discharging the temperature
  • the metering device 10 and also the heater 12 are controlled and controlled by the programmable electronic control system 14. Further, with the programmable electronic control and regulating system 14, the drive for the discharge belt 4, the overburden belt 6 and the ascending screw conveyor 7 can also be controlled and regulated by the electronic control electronics (not shown).
  • the molten salt can also be prepared outside the gutter and then fed to the gutter. It is also possible to use salts of other chemical formulas and in other mixtures.

Abstract

The method for the recovery of bitumen from road covering (asphalt) breakup is characterized by the separation of the bitumen from the remaining components of the road covering, particularly stone material (minerals), by means of a hot salt bath (salt melt). For the uptake and liquefaction of a nitrite-free, heat-conducting salt having a low melting point, preferably of a mixture of LiNO<SUB>3</SUB> / KNO<SUB>3</SUB> (lithium nitrate/potassium nitrate), for the production of a salt melt (2), the device for the execution of said method comprises a preferably groove-shaped basin (1) that can be heated. Supply means (3, 4), having a predetermined breaking value for the road covering breakup are connected upstream of the basin (1). Furthermore, a conveyor worm (5) is arranged in the basin (1) for transporting the road covering breakup through the salt melt (2). At the end of the conveying path of the basin (1), removal tools (6) for skimming and further transporting the bitumen (8) that was separated from the stone material of the remains and floating on top of the salt melt are provided. The invention further comprises discharge means (7) at the end of the conveying path of the basin (1) for the sunken bitumen-free stone material (9) in the salt melt. Due to said measures, practically hundred percent recovery of the bitumen from the asphalt waste is possible.

Description

Verfahren und Einrichtung zum Trennen von Gemischen. Method and device for separating mixtures.
Die vorliegende Erfindung betrifft ein Verfahren und eine Einrichtung zur Trennung von Gemischen, wie z.B. das Trennen von Strassen-Asphalt Belagaufbruch in Bitumen und die übrigen Bestandteile oder zum Trennen von Ölsand in Öl und Sand.The present invention relates to a method and apparatus for separating mixtures, e.g. the separation of road asphalt pavement break-up in bitumen and the remaining constituents or for separating oil sands in oil and sand.
Im Bereich der Sanierungen von Asphalt-Strassen ist Stand der Technik, den Strassenaufbruch mit vorgegebenem Brechwert zu brechen und zumindest teilweise als Kiesersatz einzusetzen. Der enthaltene Bitumen erfüllt dabei keine Aufgabe. Der verbleibende Teil des bitumenhaltigen Belagmaterials hingegen wird auf Belagaufbereitungsanlagen bis zu maximal 50 % dem Neumaterial beigegeben. Die Beschränkung auf maximal 50 % wird damit begründet, dass die Zusammensetzung des Aufbruchmaterials nicht genau definiert ist.In the field of redevelopment of asphalt roads, the state of the art is to break the road with a predetermined breaking point and at least partially use it as a gravel replacement. The bitumen contained fulfills no task. On the other hand, the remaining part of the bitumen-containing surfacing material is added to the new material on surfacing plants up to a maximum of 50%. The restriction to a maximum of 50% is based on the fact that the composition of the material to be dredged is not precisely defined.
In Anbetracht des Umstandes aber, dass Bitumen ein Erdölderivat ist und nicht ohne weiteres anders hergestellt werden kann, drängt sich aus ökologischen und ökonomischen Gründen eine Rückgewinnung des Bitumen auf.However, considering that bitumen is a derivative of petroleum and can not be readily manufactured differently, bitumen reclamation is required for environmental and economic reasons.
Beim Trennen von Ölsand geht es darum, das darin enthaltene Erdöl vom Gestein, bzw. vom Sand zu trennen.When separating oil sands, it is about the contained oil of Rock, or separate from the sand.
Aufgabe der vorliegenden Erfindung ist deshalb die Schaffung eines Verfahrens zur Trennung von Gemischen wie Strassenbelagaufbruch in Bitumen und Steinmaterial oder zur Trennung von Ölsand und Sand, bzw. dem übrigen Gestein.Object of the present invention is therefore to provide a method for the separation of mixtures such as road surface break-up in bitumen and stone material or for the separation of oil sand and sand, or the rest of the rock.
Dieses Verfahren zeichnet sich erfindungsgemäss durch die Merkmale im kennzeichnenden Teil des unabhängigen Anspruchs 1 aus. Die Einrichtung zum Durchführen des Verfahrens weist die Merkmale kennzeichnenden Teil von Anspruch 7 auf.This method is characterized according to the invention by the features in the characterizing part of the independent claim 1. The device for carrying out the method has the features characterizing part of claim 7.
Die abhängigen Ansprüche beziehen sich auf vorteilhafte Weiterentwicklungen des Verfahrens bzw. der Einrichtung.The dependent claims relate to advantageous developments of the method or device.
Hierbei kann in einer weiteren Ausgestaltung der Erfindung die Salzschmelze eine Temperatur von grösser 130 0C aufweisen, und für die Salzschmelze ein nitritfreies, wärmeleitendes Salz mit niedrigem Schmelzpunkt verwendet werden.In this case, in a further embodiment of the invention, the molten salt has a temperature of greater than 130 0 C, and for the molten salt, a nitrite-free, heat-conducting salt can be used with a low melting point.
Weiter besteht eine vorteilhafte Ausgestaltung der Erfindung, wenn für die Salzschmelze ein Gemisch aus LiNOs / KNO3 (Lithiumnitrat/Kaliumnitrat) verwendet wird.Furthermore, there is an advantageous embodiment of the invention, when a mixture of LiNOs / KNO 3 (lithium nitrate / potassium nitrate) is used for the molten salt.
Ferner ist es vorteilhaft, wenn für die Rückgewinnung des Bitumen derFurthermore, it is advantageous if for the recovery of the bitumen of
Strassenbelag-Aufbruch durch die Salzschmelze hindurchgeführt wird, wobei sich das Bitumen vom Steinmaterial löst, aufschwimmt und von der Salz- Schmelze abgeschöpft wird. Am Ende der Hindurchführung wird das in der Salzschmelze abgesunkene, praktisch bitumenfreie Steinmaterial ausgetragen wird. Hierfür ist es von Vorteil, wenn der Strassenbelag-Aufbruch zerkleinert, mit einem vorgegebenen Brechwert, vorzugsweise bis max. 32 mm, der Salzschmelze zugeführt wird. Durch diese erfindungsgemässen Massnahmen ist eine praktisch hundertprozentige Rückgewinnung des Bitumen aus dem Abraum-Asphalt des Aufbruchs möglich. Das rückgewonnene Bitumen wird dann in bekannter Weise weiterverarbeitet.Road surface breakup is passed through the molten salt, where the bitumen dissolves from the stone material, floats and is skimmed off by the salt melt. At the end of the passage, the sunken in the molten salt, virtually bitumen-free stone material is discharged. For this purpose, it is advantageous if the road surface breakup crushed, with a predetermined refractive index, preferably up to max. 32 mm, the molten salt is supplied. By means of these measures according to the invention, a virtually 100% recovery of the bitumen from the overburden asphalt of the riser is possible. The recovered bitumen is then further processed in a known manner.
Weiter betrifft die vorliegende Erfindung eine Einrichtung zur Durchführung des genannten Verfahrens, welche Einrichtung sich erfindungsgemäss auszeichnet durch ein heizbares, vorzugsweise rinnenförmiges Becken zur Aufnahme und Verflüssigung eines nitritfreien, wärmeleitenden Salzes mit niedrigem Schmelzpunkt, vorzugsweise eines Gemisches aus UNO3 / KNO3Furthermore, the present invention relates to a device for carrying out said method, which device according to the invention is characterized by a heatable, preferably channel-shaped basin for receiving and liquefying a nitrite-free, heat-conducting salt with a low melting point, preferably a mixture of UNO3 / KNO3
(Lithiumnitrat/Kaliumnitrat), zur Herstellung einer Salzschmelze, mit dem Becken vorgeschalteten Zuführmitteln für den Strassenbelag-Aufbruch mit vorgegebenem Brechwert, mit einer, im Becken angeordneten Förderschnecke zum Transport des Strassenbelag-Aufbruches durch die Salzschmelze und mit am Ende der Durchlaufstrecke des Beckens angeordnete Abraummittel zum Abschöpfen und Weiterleiten des vom Steinmaterial des Aufbruches gelösten und auf der Salzschmelze aufschwimmenden Bitumens, sowie am Ende der Durchlaufstrecke des Beckens angeordnete Austragungsmittel für das in der Salzschmelze abgesunkene bitumenfreie Steinmaterial.(Lithium nitrate / potassium nitrate), for the preparation of a molten salt, upstream with the pool supply means for the road surface break with predetermined refractive power, arranged in the basin conveyor screw to transport the road surface break through the molten salt and arranged at the end of the passage of the basin Abraummittel for skimming and forwarding of the dissolved stone material from the departure and floating on the molten salt bitumen, as well as at the end of the passage of the basin arranged Austragungsmittel for sunken in the molten salt bitumen-free stone material.
Hierbei besteht eine vorteilhafte Ausgestaltung darin, dass Salzgemisch über eine Dosiereinrichtung dem rinnenförmigen Becken zugeleitet um das durch Abschöpfen und Austragen verringerte Volumen der Salzschmelze auszugleichen. Die Dosiereinrichtung kann über Fühler, welche den Füllstand messen und zugehöriger Elektronik gesteuert und geregelt werden. DieHere, an advantageous embodiment is that salt mixture fed through a metering device the trough-shaped basin to compensate for the reduced by skimming and discharging the volume of molten salt. The metering device can be controlled and regulated via sensors which measure the level and associated electronics. The
Temperatur der Schmelze sinkt durch natürlichen Wärmeverlust aber vor allem durch das Zuführen von relativ kaltem Strassenausbruch aber auch durch das Abschöpfen des Bitumen und Austragen d.h. Herausfördern des Steinmaterials. Die Temperatur der Schmelze wird mit Temperaturfühlern, welche diese Temperatur messen und mit zugehöriger Elektronik die Heizung der Schmelze regeln. Für einen möglichst vollständig automatischen oder teilautomatischen Betrieb der Einrichtung ist es zweckmässig, wenn eine elektronische Steuer- und Regelanlage vorhanden ist, welche die Dosiereinrichtung für die Schmelze, die Heizung, die Zuführanlage für Ausbruch, die Abraum für das obenauf schwimmende Bitumen, die Austrageinrichtung für das Steinmaterial aus dem Becken oder nur einzelne davon regelt und steuert.Temperature of the melt decreases due to natural heat loss but above all by the supply of relatively cold road eruption but also by skimming the bitumen and discharging ie conveying out the stone material. The temperature of the melt is controlled by temperature sensors, which measure this temperature and with associated electronics, the heating of the melt. For a completely automatic or semi-automatic operation of the device, it is expedient if an electronic control and regulating system is present, which the metering device for the melt, the heater, the feed system for outbreak, the overburden for the top floating bitumen, the discharge device for the stone material from the basin or only some of it regulates and controls.
Wird die Vorrichtung zum Verarbeiten von Ölsand verwendet, sinkt der Sand oder das Gestein auf den Boden des Beckens und das Erdöl schwimmt auf der Schmelze. Entsprechend muss das Erdöl, das auf der Schmelze schwimmt abgelassen werden und der auf den Boden abgesunkene Sand bzw. das Gestein, aus dem Becken gefördert werden.When the device is used to process oil sands, the sand or rock sinks to the bottom of the basin and the oil floats on the melt. Accordingly, the oil that floats on the melt must be drained off and the sand or rock sunken on the ground must be pumped out of the basin.
Eine beispielsweise Ausführungsform des Erfindungsgegenstandes ist nachfolgend anhand der Zeichnung näher erläutert.An example embodiment of the subject invention is explained below with reference to the drawing.
Es zeigenShow it
Fig. 1 im Blockschema die erfindungsgemässe Einrichtung und Fig. 2 einen Schnitt durch die Einrichtung entlang der Schnittlinie Il - Il in Fig. 1.1 shows a block diagram of the device according to the invention, and FIG. 2 shows a section through the device along the section line II - II in FIG. 1.
Die Einrichtung zur Rückgewinnung von Bitumen aus Strassenbelag-(Asphalt) Aufbruch umfasst ein heizbares, vorzugsweise rinnenförmiges Becken 1 zur Aufnahme und Verflüssigung eines nitritfreien, wärmeleitenden Salzes mit niedrigem Schmelzpunkt, vorzugsweise eines Gemisches aus UNO3 / KNO3 (Lithiumnitrat/Kaliumnitrat), zum Herstellen der Salzschmelze 2. Hierbei ist es vorteilhaft, wenn die Salzschmelze auf eine Temperatur von ca. 180 bis 200 0C gebracht wird, um das Bitumen von den übrigen Komponenten des Strassenbelag-Aufbruches (in der Regel Mineralstoffe) möglichst vollständig loszulösen.The device for recovering bitumen from pavement (asphalt) riser comprises a heatable, preferably channel-shaped basin 1 for receiving and liquefying a nitrite-free, low melting point heat-conducting salt, preferably a mixture of UNO3 / KNO3 (lithium nitrate / potassium nitrate), for producing the Molten salt 2. It is advantageous if the molten salt is brought to a temperature of about 180 to 200 0 C in order to dissolve the bitumen as completely as possible from the other components of the road surface departure (usually minerals).
Dem Becken 1 sind eine oder mehrere Zuführeinrichtungen 3, 4 für den Strassenbelag-Aufbruch wenn möglich mit vorgegebenem Brechwert, vorzugsweise bis 32 mm, vorgeschaltet, welche ein Silo 3 und ein Austragungsband 4 umfassen.The basin 1 are one or more feeders 3, 4 for the Road surface break-up if possible with predetermined refractive power, preferably up to 32 mm, upstream, which include a silo 3 and a discharge belt 4.
Weiter ist im Becken leine Förderschnecke 5 angeordnet zum Transport des Strassenbelag-Aufbruches 30 durch die Salzschmelze 2. Ferner sind am Ende der Durchlaufstrecke des Beckens 1 eine oder mehrere Abraumeinrichtungen in Form eines Abraumbandes 6 angeordnet zum Abschöpfen und Weiterleiten des sich vom Steinmaterial des Aufbruches gelösten und auf der Salzschmelze aufschwimmenden Bitumen 8. Weiter sind am Ende der Durchlaufstrecke des Beckens 1 eine oder mehrere Austragungseinrichtungen in Form einer Steigförderschnecke (Fig. 2) für das in der Salzschmelze abgesunkene bitumenfreie Steinmaterial 9 angeordnet.Further, in the basin leash screw conveyor 5 is arranged for transporting the road surface breakup 30 through the molten salt 2. Furthermore, one or more overburden facilities in the form of a overburden belt 6 are arranged for skimming and forwarding of the dissolved stone material from the departure at the end of the passage of the basin Furthermore, at the end of the passage of the basin 1, one or more discharge devices in the form of an ascending screw conveyor (FIG. 2) are arranged for the bitumen-free stone material 9 which has sunk in the molten salt.
Das Salz 20 ist über eine Dosiereinrichtung 10 dem rinnenförmigen Becken 1 zuleitbar, wobei diese Dosiereinrichtung zum Volumenausgleich des durch das Abschöpfen und Austragen verringerten Volumens der Salzschmelze über Fülltandsfühler 11 im Becken 1 gesteuert und geregelt wird. Ferner ist die Heizung 12 für das heizbare rinnenförmige Becken 1 zum Temperaturausgleich der durch das Abschöpfen und Austragen verringerten Temperatur derThe salt 20 can be supplied to the trough-shaped basin 1 via a metering device 10, this metering device being controlled and regulated for volume compensation of the volume of molten salt reduced by skimming and discharging via filling-in sensor 11 in the basin 1. Further, the heater 12 for the heatable trough-shaped basin 1 for temperature compensation of the lowered by the skimming and discharging the temperature
Salzschmelze über Temperaturfühler 13 im Becken 1 gesteuert und geregelt. Die Dosiereinrichtung 10 und auch die Heizung 12 werden mit der programmierbaren elektronischen Steuer- und Regelanlage 14 geregelt und gesteuert. Weiter können mit der programmierbaren elektronischen Steuer- und Regelanlage 14 auch der Antriebs für das Austragband 4, das Abraumband 6 und die Steigförderschnecke 7 können ebenfalls von der elektronischen Steuer- und Regelelektronik gesteuert und geregelt (nicht gezeigt).Salt melt controlled and regulated by temperature sensor 13 in tank 1. The metering device 10 and also the heater 12 are controlled and controlled by the programmable electronic control system 14. Further, with the programmable electronic control and regulating system 14, the drive for the discharge belt 4, the overburden belt 6 and the ascending screw conveyor 7 can also be controlled and regulated by the electronic control electronics (not shown).
Diese Massnahmen gestatten eine weitgehende Automatisierung der erfindungsgemässen Einrichtung zur Rückgewinnung von Bitumen ausThese measures allow extensive automation of the inventive device for the recovery of bitumen
Strassenbelag-(Asphalt)-Aufbruch bzw. zum Trennen von Öl und Gestein, bzw. Sand aus Ölsand. Selbstverständlich sind im Rahmen dieser Erfindung Ausführungsvarianten möglich, ohne den Erfindungsgedanken zu verlassen.Road surface (asphalt) break-up or for separating oil and rock, or sand from oil sands. Of course, in the context of this invention, embodiments are possible without departing from the spirit.
Beispielsweise kann die Salzschmelze auch ausserhalb der Rinne zubereitet und dann der Rinne zugeführt werden. Ferner können auch Salze anderer chemischer Formeln und in anderen Gemischen Verwendung finden.For example, the molten salt can also be prepared outside the gutter and then fed to the gutter. It is also possible to use salts of other chemical formulas and in other mixtures.
Es wird Schutz beansprucht wie folgt: Protection is claimed as follows:

Claims

Patentansprüche claims
1. Verfahren zum Trennen von Gemischen insbesondere zum Rückgewinnen von Bitumen aus Strassenbelag-(Asphalt) Aufbruch oder zum Trennen von Ölsand in Öl und Sand, bzw. Gestein, gekennzeichnet durch eine Salzschmelze in welcher ein Teil auf der Salzschmelze schwimmt und ein Teil in der Salzschmelze absinkt.1. A method for separating mixtures, in particular for recovering bitumen from road surface (asphalt) departure or for separating oil sands in oil and sand, or rock, characterized by a molten salt in which a part floats on the molten salt and a part in the Salt melt sinks.
2. Verfahren nach Anspruch 1 , bei welchem bitumenhaltiger Belagsausbruch in Bitumen, das auf der Schmelze aufschwimmt und2. The method of claim 1, wherein the bituminous deposit outburst in bitumen, which floats on the melt and
Steinmaterial das in der Schmelze absinkt, getrennt wird, bzw. bei welchem Ölsand in Öl, das auf der Schmelze aufschwimmt und Sand oder Gestein das in der Salzschmelze absinkt, getrennt wird.Stone material that sinks in the melt, is separated, or in which oil sands in oil, which floats on the melt and sand or rock that sinks in the molten salt, is separated.
3. Verfahren nach Anspruch 1 oder 2, bei welchem die Temperatur der3. The method according to claim 1 or 2, wherein the temperature of the
Salzschmelze (2) von grösser als 130 0C vorzugsweise 1800C bis 2000C ist.Molten salt (2) of greater than 130 0 C, preferably 180 0 C to 200 0 C.
4. Verfahren nach einem der Ansprüche 1 bis 3, bei welchem für die Salzschmelze (2) ein nitritfreies, wärmeleitendes Salz mit niedrigem4. The method according to any one of claims 1 to 3, wherein for the molten salt (2) a nitrite-free, heat-conducting salt with low
Schmelzpunkt verwendet wird.Melting point is used.
5. Verfahren nach einem der Ansprüche 1 bis 4, bei welchem die Salzschmelze (2) ein Gemisch aus LiNOs/ KNO3 (Lithiumnitrat/Kaliumnitrat) ist.5. The method according to any one of claims 1 to 4, wherein the molten salt (2) is a mixture of LiNOs / KNO3 (lithium nitrate / potassium nitrate).
6. Verfahren nach einem der Ansprüche 1 bis 5, bei welchem dadurch gekennzeichnet, dass der Strassenbelag-Aufbruch (30) bzw. Ölsand mit einem vorgegebenen Brechwert, vorzugsweise bis max. 32 mm Teilgrösse, der Salzschmelze (2) zugeführt wird.6. The method according to any one of claims 1 to 5, wherein characterized in that the road surface break-up (30) or oil sand with a predetermined refractive index, preferably up to max. 32 mm part size, the molten salt (2) is supplied.
7. Einrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 7 zur Trennung von Komponenten von Gemischen insbesondere zur Rückgewinnung von Bitumen aus Strassenbelag-(Asphalt)-Aufbruch (30), oder zum Trennen von Öl und Sand, bzw. Gestein von Ölsand gekennzeichnet durch ein heizbares, vorzugsweise rinnenförmiges Becken (1 ) zur Aufnahme und Verflüssigung eines nitritfreien, wärmeleitenden Salzes (20) mit niedrigem Schmelzpunkt, vorzugsweise eines Gemisches aus UNO3 / KNO3 (Lithiumnitrat/Kaliumnitrat), zur Herstellung einer Salzschmelze (2), mit dem Becken (1 ) vorgeschalteten Zuführmitteln (3,4) für den Strassenbelag-Aufbruch (30) bzw. den Ölsand mit vorgegebenem7. Device for carrying out the method according to one of the claims 1 to 7 for the separation of components of mixtures, in particular for the recovery of bitumen from road surface (asphalt) break-up (30), or for separating oil and sand, or rock of oil sands characterized by a heatable, preferably trough-shaped basin (1) for receiving and liquefying a nitrite-free, heat-conducting salt (20) with a low melting point, preferably a mixture of UNO 3 / KNO 3 (lithium nitrate / potassium nitrate), for producing a molten salt (2), with feed means (3) connected upstream of the basin (1) 4) for the road surface break-up (30) or the oil sand with a given
Brechwert, mit einer, im Becken (1 ) angeordneten Förderschnecke (5) zum Transport des Strassenbelag-Aufbruches (30) bzw. Ölsand durch die Salzschmelze (2) und mit am Ende der Durchlaufstrecke des Beckens (1 ) angeordnetenRefractive power, with one, in the basin (1) arranged screw conveyor (5) for transporting the road surface break-up (30) or oil sand through the molten salt (2) and arranged at the end of the passage of the basin (1)
Abraummitteln (6) zum Abschöpfen und Weiterleiten des sich vom Steinmaterial des Aufbruches (30) gelösten und auf der Salzschmelze (2) aufschwimmenden Bitumens (8), bzw. aufschwimmenden Öl sowie mit, am Ende der Durchlaufstrecke des Beckens (1 ) angeordnete Austragungsmittel (7) für das in der Salzschmelze (2) abgesunkene bitumenfreie Steinmaterial (9), bzw. den Sand oder das Gestein des Ölsands.Removal means (6) for skimming and forwarding of the stone material of the riser (30) dissolved and floating on the molten salt (2) bitumen (8), or floating oil and with, at the end of the passage of the pelvis (1) arranged Austragungsmittel ( 7) for the sunken in the molten salt (2) bitumen-free stone material (9), or the sand or the rock of the oil sands.
8. Einrichtung nach Anspruch 7, bei welcher das Salz (20) über eine Dosiereinrichtung (10) dem rinnenförmigen Becken (1 ) zugeleitet und diese Dosiereinrichtung (10) zum Volumenausgleich des durch das Abschöpfen und Austragen verringerten Volumens der Salzschmelze (2) über Füllstandfühler (11 ) im Becken (1 ) angesteuert wird.8. Device according to claim 7, wherein the salt (20) via a metering device (10) the trough-shaped basin (1) and fed this metering device (10) for volume compensation of the skimming and discharging reduced volume of molten salt (2) via level sensor (11) in the basin (1) is driven.
9. Einrichtung nach Anspruch 7 oder 8, bei welcher die Heizungsmittel (12) für das heizbare rinnenförmige Becken (1 ) zum Temperaturausgleich der durch das zugeführte Material, das Abschöpfen und Austragen verringerten Temperatur der Salzschmelze (2) im Becken (1 ), die Heizung (12) über im Becken (1 ) angeordnete Temperaturfühler (13) geregelt und gesteuert wird.9. Device according to claim 7 or 8, wherein the heating means (12) for the heated trough-shaped basin (1) for temperature compensation of the supplied material, the skimming and discharging reduced temperature of the molten salt (2) in the basin (1), the heater (12) via in the basin (1) arranged temperature sensor (13) is controlled and controlled.
10. Einrichtung nach einem der Ansprüche 7 bis 9, bei welcher die Dosiereinrichtung (10) und/oder die Heizungsmittel (12) mit einer programmierbaren elektronischen Steueranlage (14) verbunden ist/sind.10. Device according to one of claims 7 to 9, wherein the metering device (10) and / or the heating means (12) with a programmable electronic control system (14) is / are connected.
11. Einrichtung nach einem der Ansprüche 7 bis 10, bei welcher die Zuführmittel (3,4) für den Strassenbelag-Aufbruch (30) ein Austragband11. Device according to one of claims 7 to 10, wherein the supply means (3,4) for the pavement break-up (30) a discharge belt
(4), ferner die Abraummittel (6) zum Abschöpfen und Weiterleiten des sich vom Steinmaterial des Aufbruches (30) gelösten und auf der Salzschmelze (2) aufschwimmenden Bitumens (8), ein Abraumband (6) und ferner die Austragungsmittel (7) für das in der Salzschmelze (2) abgesunkene bitumenfreie Steinmaterial (9) eine Steigförderschnecke(4), and further the stripping means (6) for scooping and transferring the bitumen (8) released from the stone material of the riser (30) and floating on the molten salt (2), a scraper belt (6) and further the discharge means (7) for the sunken in the molten salt (2) bitumen-free stone material (9) a climbing screw
(7) umfassen.(7).
12. Einrichtung nach einem der Ansprüche 7 bis 11 , mit einer programmierbaren elektronischen Regel- und Steueranlage (14) mit welcher eine oder mehrere der Komponenten Austragband (4),12. Device according to one of claims 7 to 11, with a programmable electronic control and regulation system (14) with which one or more of the components discharge belt (4),
Abraumband (6), Steigförderschnecke (7) Temperatur der Salzschmelze (2), Dosiervorrichtung für Salz gesteuert und geregelt werden. Abraumband (6), ascending screw (7) Temperature of the molten salt (2), metering device for salt controlled and regulated.
EP08717388.6A 2007-03-12 2008-03-04 Method for separating mixtures Active EP2111436B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3972007A CH699441B1 (en) 2007-03-12 2007-03-12 Method and apparatus for recovery of bitumen from Strassenbelag- (asphalt) breakup.
PCT/EP2008/052632 WO2008110486A1 (en) 2007-03-12 2008-03-04 Method and device for separating mixtures

Publications (2)

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EP2111436A1 true EP2111436A1 (en) 2009-10-28
EP2111436B1 EP2111436B1 (en) 2019-06-05

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CA (1) CA2679729C (en)
CH (1) CH699441B1 (en)
WO (1) WO2008110486A1 (en)

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US8562247B2 (en) 2009-01-02 2013-10-22 Heatwurx, Inc. Asphalt repair system and method
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Also Published As

Publication number Publication date
CA2679729A1 (en) 2008-09-18
WO2008110486A1 (en) 2008-09-18
CA2679729C (en) 2015-06-23
EP2111436B1 (en) 2019-06-05
CH699441B1 (en) 2010-03-15

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