DE3809115A1 - Process for decontaminating substances with a hollow-screw combination - Google Patents
Process for decontaminating substances with a hollow-screw combinationInfo
- Publication number
- DE3809115A1 DE3809115A1 DE19883809115 DE3809115A DE3809115A1 DE 3809115 A1 DE3809115 A1 DE 3809115A1 DE 19883809115 DE19883809115 DE 19883809115 DE 3809115 A DE3809115 A DE 3809115A DE 3809115 A1 DE3809115 A1 DE 3809115A1
- Authority
- DE
- Germany
- Prior art keywords
- trough
- snails
- screw
- last
- possibly
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000000126 substance Substances 0.000 title claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 241000237858 Gastropoda Species 0.000 claims description 8
- MHCVCKDNQYMGEX-UHFFFAOYSA-N 1,1'-biphenyl;phenoxybenzene Chemical group C1=CC=CC=C1C1=CC=CC=C1.C=1C=CC=CC=1OC1=CC=CC=C1 MHCVCKDNQYMGEX-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 238000005202 decontamination Methods 0.000 claims description 2
- 230000003588 decontaminative effect Effects 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Process for decontaminating substances, preferably earth, in a system of hollow screws arranged one above the other, with indirect heating.
Description
Aufgabe der Erfindung ist es ein Verfahren zur Dekontaminie rung von Stoffen, vorzugsweise Erdreich zu schaffen, das auch den Durchsatz großer Mengen, bei indirekter Aufheizung er möglicht.The object of the invention is a method for decontamination Substance, preferably to create soil, that too the throughput of large quantities, with indirect heating he possible.
Vom Stand der Technik sind verschiedene Verfahren bekannt, die aber bei großen Durchsatzmengen immer nur durch Direkt beheizung, wie im Drehrohr, erreicht werden können.Various methods are known from the prior art, but with large throughputs, this is only possible with direct heating, as in the rotary tube, can be achieved.
Gelöst wird diese Aufgabe dadurch, daß mindestens 3 Hohl schnecken, die jede für sich in einem oben verschlossenen Trog, der als Doppelmanteltrog ausgebildet ist, über einander angeordnet sind und alle Schnecken mit einem oder vorzugsweise jede Schnecke für sich von einem eigenen Wärme trägermedium, z. B. Heißdampf, Sattdampf, Diphyl etc. oder flüssigem Natrium durchströmt und aufgeheizt werden, wobei auch jeweils der Doppelmanteltrog getrennt mit durchströmt wird, und das zu dekontaminierende Material über den Eintrag, ggf. durch eine Schleuse, in die erste Schnecke eingetragen und durch die Schneckenbewegung und einem Übergang von einem Trog in den anderen, bei stetigem Aufheizen weiter befördert und an der letzten Schnecke über einen Austrag, ggf. durch eine Schleuse, ausgeworfen wird, und die Verdampfungsprodukte, in der ersten Stufe meist Wasserdampf, über Leitungen, vor zugsweise getrennt abgezogen und einer Verwertung oder Besei tigung zugeführt werden.This problem is solved in that at least 3 cavities snails, each one locked in a top Trough, which is designed as a double jacket trough, over are arranged one above the other and all snails with one or preferably each snail by itself of its own warmth carrier medium, e.g. B. superheated steam, saturated steam, diphyl etc. or flowing through liquid sodium and heated, whereby also flows through the double jacket trough separately and the material to be decontaminated via the entry, possibly through a sluice, entered in the first screw and by the screw movement and a transition from one Trough in the other, conveyed further with constant heating and on the last screw via a discharge, if necessary through a lock, is ejected, and the evaporation products, in the first stage mostly water vapor, via pipes deducted separately and a recovery or Besei be fed.
Die Menge des Durchsatzes wird weitgehendst vom Durchmesser der Schnecken sowie der Aufheizgeschwindigkeit bestimmt.The amount of throughput largely depends on the diameter the screws and the heating rate.
Claims (3)
- - mindestens 3 Hohlschnecken (40), die jede für sich in einem oben verschlossenen Trog (41), der als Doppel manteltrog (42) ausgebildet ist, übereinander angeordnet sind,
- - alle Schnecken mit einem oder vorzugsweise jede Schnecke für sich von einem eigenen Wärmeträgermedium, z. B. Heißdampf, Sattdampf, Diphyl etc. oder flüssigem Natrium durchströmt und aufgeheizt werden, wobei auch jeweils der Doppelmanteltrog getrennt mit durchströmt wird,
- - das zu dekontaminierende Material über den Eintrag (43), ggf. durch eine Schleuse, in die erste Schnecke einge tragen und durch die Schneckenbewegung und einem Über gang (44) von einem Trog in den anderen, bei stetigem Aufheizen weiter befördert und an der letzten Schnecke über einen Austrag (45), ggf. durch eine Schleuse, aus geworfen wird,
- - die Verdampfungsprodukte, in der ersten Stufe meist Wasserdampf, über Leitungen (46), vorzugsweise getrennt abgezogen und einer Verwertung oder Beseitigung zuge führt werden.
- at least 3 hollow screws ( 40 ), which are each arranged one above the other in a trough ( 41 ) which is closed at the top and which is designed as a double jacket trough ( 42 ),
- - All snails with one or preferably each snail from its own heat transfer medium, for. B. superheated steam, saturated steam, diphyl etc. or liquid sodium are flowed through and heated, the double jacket trough also being flowed through separately,
- - The material to be decontaminated via the entry ( 43 ), possibly through a sluice, into the first screw and carried by the screw movement and a transition ( 44 ) from one trough to the other, with constant heating and transported to the the last screw is thrown out through a discharge ( 45 ), possibly through a lock,
- - The evaporation products, mostly water vapor in the first stage, are drawn off via lines ( 46 ), preferably separately, and are recycled or disposed of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883809115 DE3809115A1 (en) | 1988-03-18 | 1988-03-18 | Process for decontaminating substances with a hollow-screw combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883809115 DE3809115A1 (en) | 1988-03-18 | 1988-03-18 | Process for decontaminating substances with a hollow-screw combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3809115A1 true DE3809115A1 (en) | 1989-09-28 |
Family
ID=6350090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19883809115 Withdrawn DE3809115A1 (en) | 1988-03-18 | 1988-03-18 | Process for decontaminating substances with a hollow-screw combination |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3809115A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3921591A1 (en) * | 1989-06-30 | 1991-01-03 | Weiss Gmbh & Co Leonhard | METHOD AND DEVICE FOR REMOVING VOLATILE POLLUTANTS FROM EARTH SOILS |
| WO1992018214A3 (en) * | 1991-04-10 | 1993-01-21 | Remediation Technologies Inc | System and method for removing a volatile component from a matrix |
| DE9213599U1 (en) * | 1992-10-08 | 1993-01-28 | Kiefl KG, 8035 Gauting | Device for regeneration and sterilization of soil |
| EP0626215A1 (en) * | 1993-05-25 | 1994-11-30 | Umwelt-Technics-Nord GmbH | Method and device for separating volatile components from a material |
| WO1994029039A1 (en) * | 1993-06-04 | 1994-12-22 | Fresenius Umwelttechnik Gmbh | Device and process for cleansing polluted ground |
| US5406747A (en) * | 1992-10-08 | 1995-04-18 | Kiefl Kb | Device for regeneration and sterilization of earth, sand or the like |
| DE19528708A1 (en) * | 1995-08-04 | 1997-02-06 | Buna Sow Leuna Olefinverb Gmbh | Process for separating volatile constituents from solid mixtures, in particular from rubble, soil material and sludge |
| NL1006990C2 (en) * | 1997-09-10 | 1999-03-11 | Recycling Nederland K W S D B | Device for removing one or more contaminants from a bulk material. |
| CN111408614A (en) * | 2020-04-14 | 2020-07-14 | 浙江大学 | Screw type indirect thermal desorption device for organic contaminated soil remediation |
-
1988
- 1988-03-18 DE DE19883809115 patent/DE3809115A1/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3921591A1 (en) * | 1989-06-30 | 1991-01-03 | Weiss Gmbh & Co Leonhard | METHOD AND DEVICE FOR REMOVING VOLATILE POLLUTANTS FROM EARTH SOILS |
| WO1992018214A3 (en) * | 1991-04-10 | 1993-01-21 | Remediation Technologies Inc | System and method for removing a volatile component from a matrix |
| US5216821A (en) * | 1991-04-10 | 1993-06-08 | Remediation Technologies, Incorporated | System and method for removing a volatile component from a matrix |
| DE9213599U1 (en) * | 1992-10-08 | 1993-01-28 | Kiefl KG, 8035 Gauting | Device for regeneration and sterilization of soil |
| EP0591625A1 (en) * | 1992-10-08 | 1994-04-13 | Kiefl Kg | Device for the regeneration and sterilization of soil |
| US5406747A (en) * | 1992-10-08 | 1995-04-18 | Kiefl Kb | Device for regeneration and sterilization of earth, sand or the like |
| EP0626215A1 (en) * | 1993-05-25 | 1994-11-30 | Umwelt-Technics-Nord GmbH | Method and device for separating volatile components from a material |
| WO1994029039A1 (en) * | 1993-06-04 | 1994-12-22 | Fresenius Umwelttechnik Gmbh | Device and process for cleansing polluted ground |
| DE19528708A1 (en) * | 1995-08-04 | 1997-02-06 | Buna Sow Leuna Olefinverb Gmbh | Process for separating volatile constituents from solid mixtures, in particular from rubble, soil material and sludge |
| NL1006990C2 (en) * | 1997-09-10 | 1999-03-11 | Recycling Nederland K W S D B | Device for removing one or more contaminants from a bulk material. |
| EP0901845A1 (en) * | 1997-09-10 | 1999-03-17 | Recycling Nederland K.W.S.D. B.V. | Device for removing one or more pollutions from bulk material |
| CN111408614A (en) * | 2020-04-14 | 2020-07-14 | 浙江大学 | Screw type indirect thermal desorption device for organic contaminated soil remediation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |