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DE4125169A1 - METHOD FOR DISPOSAL OF ASBEST - Google Patents

METHOD FOR DISPOSAL OF ASBEST

Info

Publication number
DE4125169A1
DE4125169A1 DE4125169A DE4125169A DE4125169A1 DE 4125169 A1 DE4125169 A1 DE 4125169A1 DE 4125169 A DE4125169 A DE 4125169A DE 4125169 A DE4125169 A DE 4125169A DE 4125169 A1 DE4125169 A1 DE 4125169A1
Authority
DE
Germany
Prior art keywords
asbestos
slag
melting
mixing container
disposal
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.)
Withdrawn
Application number
DE4125169A
Other languages
German (de)
Inventor
Walter Dipl Ing Weiler
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.)
Aqseptence Group GmbH
Original Assignee
Passavant Werke AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Passavant Werke AG and Co KG filed Critical Passavant Werke AG and Co KG
Priority to DE4125169A priority Critical patent/DE4125169A1/en
Publication of DE4125169A1 publication Critical patent/DE4125169A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/20—Agglomeration, binding or encapsulation of solid waste
    • B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
    • B09B3/29—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix involving a melting or softening step
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Asbestos is incorporated in vitrifying slag from melting or blast furnace. The asbestos can be directly added to the outflowing slag or can be combined in a mixing vessel. External heat can be supplied and the asbestos can be preheated. ADVANTAGE - Method does not require a large amt. of energy.

Description

Ein großes Problem ist zur Zeit die Beseitigung von Asbest aus Aufenthaltsräumen aller Art. Da die Gefährlichkeit der Asbestfasern bewiesen ist, müssen die asbesthaltigen Bauteile und Beläge unter größten Schutzvorkehrungen entfernt und abtransportiert werden.A big problem right now is the removal of asbestos Lounges of all kinds. Because the dangerousness of the asbestos fibers is proven, the asbestos-containing components and coverings must be under greatest protective precautions are removed and removed.

Es besteht die Aufgabe, die ausgebauten Bauteile und Beläge anschließend so endzulagern oder in andere Materialien einzubinden, daß die gefährlichen Fasern nicht mehr in die Atemluft gelangen können. Es ist bereits vorgeschlagen worden, den Asbest auf Schmelztemperatur zu erhitzen und den Glasfluß durch Abschrecken in ein Schlackengranulat zu überführen, das als Bau- oder Bauzusatzstoff verwendet werden kann. Durch das Einschmelzen sind die Fasern völlig beseitigt.The task is to remove the removed components and coverings then final storage or incorporation in other materials, that the dangerous fibers no longer get into the air we breathe can. Asbestos has already been suggested Heat the melting temperature and quench the glass flow in to transfer a slag granulate that as construction or Building additive can be used. By melting it down the fibers completely eliminated.

Ein Nachteil dieses Verfahrens ist der hohe Wärmebedarf. Die Aufgabe, den Wärmebedarf drastisch zu senken und trotzdem die Asbestfasern einzuschmelzen, wird nunmehr dadurch gelöst, daß der Asbest in die aus Schmelz- und Hochöfen abgehende verglasende Schlacke eingebunden wird. Die Temperatur der Schlacke reicht in den meisten Fällen aus, um den Asbest ebenfalls zum Schmelzen zu bringen. Lediglich bei Zugabe größerer Asbestmengen kann es notwendig werden, Fremdwärme zuzuführen. Es ist in diesem Fall sinnvoll, auch den Asbest vorzuwärmen. Dies kann durch Wärmeaustausch mit der in der Schlackenlöschvorrichtung anfallenden Abwärme geschehen.A disadvantage of this process is the high heat requirement. The Task to drastically reduce the heat requirement and still reduce the  Melting asbestos fibers is now solved in that the Asbestos in the glazing from the melting and blast furnaces Slag is incorporated. The temperature of the slag is sufficient in most cases to also melt the asbestos bring. It is only possible when larger amounts of asbestos are added become necessary to supply external heat. It is in this case useful to preheat the asbestos as well. This can be done by Heat exchange with that occurring in the slag quenching device Waste heat happen.

Bevorzugt wird der Asbest unmittelbar am Abfluß dem Schlackenfluß beigegeben. Es ist aber auch denkbar, ein einem Warmhaltegefäß entsprechendes Mischgefäß vorzusehen, in dem der Asbest unter die Schlackenschmelze gemischt wird. Da Schmelz- und Hochofenschlacke ohnehin durch Abschrecken granuliert wird, bedarf es für den Asbest keiner weiteren Bearbeitungseinrichtung. Das Granulat kann auch mit dem Asbestgehalt als Bau- oder Bauzusatzstoff eingesetzt werden. Deponiefläche wird hierfür nicht benötigt. Da Asbest ein Mineralstoff ist, kann es in dem umgeschmolzenen Zustand zu keinen schädlichen Auswaschungen oder Ausdünstungen kommen. Der Asbest ist endgültig und umweltverträglich beseitigt.The asbestos is preferably immediately downstream of the slag flow added. However, it is also conceivable to use a holding vessel provide appropriate mixing vessel in which the asbestos under the Slag melt is mixed. Because smelting and blast furnace slag granulated by quenching anyway, is required for the asbestos no further processing equipment. The granules can also be used the asbestos content can be used as a construction or construction additive. Landfill area is not required for this. Because asbestos Is mineral, there can be none in the remelted state harmful leaching or exhalation. The asbestos is finally and environmentally friendly removed.

Claims (6)

1. Verfahren zum endgültigen Entsorgen von Asbest, gekennzeichnet durch die Einbindung in die aus Schmelz- und Hochöfen abgehende verglasende Schlacke.1. Process for the final disposal of asbestos, characterized by the integration into the glazing slag coming out of melting and blast furnaces. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Asbest unmittelbar in den Schlackenabfluß am Ausfluß aus dem Ofen gegeben wird.2. The method according to claim 1, characterized characterized in that the asbestos immediately in the Slag drain is given at the outlet from the furnace. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Asbest in einem Mischbehälter, in den die Schlacke eingeleitet wird, zugegeben wird.3. The method according to claim 1, characterized characterized in that the asbestos in one Mixing container into which the slag is introduced is added becomes. 4. Verfahren nach Anspruch 1 bis 3, dadurch kennzeichnet, daß dem Schlackenabfluß oder dem Mischbehälter Fremdwärme zugeführt wird.4. The method according to claim 1 to 3, characterized indicates that the slag drain or Mixing container external heat is supplied. 5. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der Asbest vor Zugabe in den Schlackenfluß vorgewärmt wird. 5. The method according to claim 1 to 3, characterized characterized in that the asbestos before addition to the Slag flow is preheated.   6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß zur Vorwärmung des Asbest die Abwärme der Schlackenlöschvorrichtung verwendet wird.6. The method according to claim 5, characterized characterized in that for preheating the asbestos Waste heat from the slag quenching device is used.
DE4125169A 1991-07-30 1991-07-30 METHOD FOR DISPOSAL OF ASBEST Withdrawn DE4125169A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4125169A DE4125169A1 (en) 1991-07-30 1991-07-30 METHOD FOR DISPOSAL OF ASBEST

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4125169A DE4125169A1 (en) 1991-07-30 1991-07-30 METHOD FOR DISPOSAL OF ASBEST

Publications (1)

Publication Number Publication Date
DE4125169A1 true DE4125169A1 (en) 1993-02-04

Family

ID=6437293

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4125169A Withdrawn DE4125169A1 (en) 1991-07-30 1991-07-30 METHOD FOR DISPOSAL OF ASBEST

Country Status (1)

Country Link
DE (1) DE4125169A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636584A3 (en) * 1993-07-30 1995-06-14 Mediterranee Const Ind Process for vitrifying solid residues from the incineration of domestic and/or industrial waste, apparatus therefor and product therefrom.
DE4423728A1 (en) * 1994-06-25 1996-01-04 Inst Baustoff Und Umweltschutz Process for the treatment and environmentally sound recovery of asbestos cement products

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636584A3 (en) * 1993-07-30 1995-06-14 Mediterranee Const Ind Process for vitrifying solid residues from the incineration of domestic and/or industrial waste, apparatus therefor and product therefrom.
DE4423728A1 (en) * 1994-06-25 1996-01-04 Inst Baustoff Und Umweltschutz Process for the treatment and environmentally sound recovery of asbestos cement products

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee