EP0789209A3 - Process for drying sludge, in particular sewage sludge - Google Patents

Process for drying sludge, in particular sewage sludge Download PDF

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Publication number
EP0789209A3
EP0789209A3 EP96111367A EP96111367A EP0789209A3 EP 0789209 A3 EP0789209 A3 EP 0789209A3 EP 96111367 A EP96111367 A EP 96111367A EP 96111367 A EP96111367 A EP 96111367A EP 0789209 A3 EP0789209 A3 EP 0789209A3
Authority
EP
European Patent Office
Prior art keywords
sludge
drying
particular sewage
dryer
sewage sludge
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
EP96111367A
Other languages
German (de)
French (fr)
Other versions
EP0789209A2 (en
EP0789209B1 (en
Inventor
Klaus Dr.-Ing. Steier
Stephan Dipl.-Ing. Wild
Erwin Dipl.-Ing. Brunnmair
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.)
Andritz AG
Original Assignee
Andritz Patentverwaltungs GmbH
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 Andritz Patentverwaltungs GmbH filed Critical Andritz Patentverwaltungs GmbH
Publication of EP0789209A2 publication Critical patent/EP0789209A2/en
Publication of EP0789209A3 publication Critical patent/EP0789209A3/en
Application granted granted Critical
Publication of EP0789209B1 publication Critical patent/EP0789209B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • F26B23/022—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers

Abstract

Die Erfindung betrifft ein Verfahren zur Trocknung von Schlamm, insbesondere Klärschlamm, bei dem eine Mischung aus einem Trägermaterial und feuchtem Gut einem Trockner zugeführt und Heißgas bzw. -luft darüber geleitet wird. Sie ist vornehmlich dadurch gekennzeichnet, daß die Zufuhrmenge des feuchten Gutes (Naßschlamm) in Abhängigkeit von der Austrittstemperatur des Heißgases bzw. Der heißen Luft aus dem Trockner geregelt wird.

Figure 00000001
The invention relates to a process for drying sludge, in particular sewage sludge, in which a mixture of a carrier material and moist material is fed to a dryer and hot gas or air is passed over it. It is primarily characterized in that the supply amount of the moist material (wet sludge) is regulated depending on the outlet temperature of the hot gas or the hot air from the dryer.
Figure 00000001
EP96111367A 1995-09-27 1996-07-15 Process for drying sludge, in particular sewage sludge Expired - Lifetime EP0789209B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT1598/95 1995-09-27
AT159895 1995-09-27
AT0159895A AT402636B (en) 1995-09-27 1995-09-27 METHOD FOR DRYING SLUDGE, METHOD FOR DRYING SLUDGE, ESPECIALLY WASTEWATER SLUDGE, IN PARTICULAR WATER SLUDGE

Publications (3)

Publication Number Publication Date
EP0789209A2 EP0789209A2 (en) 1997-08-13
EP0789209A3 true EP0789209A3 (en) 1998-04-01
EP0789209B1 EP0789209B1 (en) 2002-03-06

Family

ID=3516881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96111367A Expired - Lifetime EP0789209B1 (en) 1995-09-27 1996-07-15 Process for drying sludge, in particular sewage sludge

Country Status (4)

Country Link
US (1) US5775004A (en)
EP (1) EP0789209B1 (en)
AT (1) AT402636B (en)
DE (1) DE59608836D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107764037A (en) * 2016-08-18 2018-03-06 迪蔼姆芬兰有限公司 For the method and arrangement recycled in drying process to air

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404015B (en) * 1996-04-17 1998-07-27 Andritz Patentverwaltung METHOD FOR DRYING GOODS, IN PARTICULAR SEWAGE SLUDGE
US6182375B1 (en) * 1996-09-25 2001-02-06 Institute Of Paper Science And Technology, Inc. Method and apparatus for multi-NIP impulse drying
AT406671B (en) * 1996-11-22 2000-07-25 Andritz Patentverwaltung METHOD FOR DRYING SLUDGE, ESPECIALLY SEWAGE SLUDGE
WO1999042775A1 (en) 1998-02-17 1999-08-26 Combustion Y Secado Ingenieria, S.A. Tubular dryer using nozzles and fluidification
AT406672B (en) * 1998-02-26 2000-07-25 Andritz Patentverwaltung METHOD AND SYSTEM FOR MECHANICAL AND THERMAL DRAINAGE OF SLUDGE
AU3338101A (en) * 2000-04-09 2001-10-11 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Method and plant to reduce the water contents bound in the capillaries of fibrous cells
AT408751B (en) 2000-06-09 2002-03-25 Andritz Ag Maschf Process and plant for drying sludge
AT413602B (en) * 2003-08-26 2006-04-15 Andritz Ag Maschf Apparatus for drying sewage sludge comprises drum drier fed with hot gas from burner via heat exchanger, dust separator downstream from drier being connected to condenser, from which gas is recirculated to burner
US8956539B2 (en) * 2013-03-09 2015-02-17 I. Kruger Inc. System and method for drying biosolids and enhancing the value of dried biosolids
CN104860507B (en) * 2015-06-10 2016-11-16 湖南首创投资有限责任公司 A kind of sludge dewatering drying forming system
KR20170109912A (en) * 2016-03-22 2017-10-10 삼성에스디아이 주식회사 Apparatus for drying electrode plate
WO2018132822A1 (en) * 2017-01-16 2018-07-19 Envirostar, Llc Dryer control systems and methods
US10845120B1 (en) * 2018-03-01 2020-11-24 Steve Macchio Systems and methods for environmentally-clean thermal drying

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5069801A (en) * 1990-02-26 1991-12-03 Bio Gro Systems, Incorporated Indirect heat drying and simultaneous pelletization of sludge
US5279637A (en) * 1990-10-23 1994-01-18 Pcl Environmental Inc. Sludge treatment system
US5318184A (en) * 1992-09-10 1994-06-07 Georg Krebs Sludge drying system
DE4242747A1 (en) * 1992-12-17 1994-06-23 Steag Ag Process and plant for treating sludge
DE19531101C1 (en) * 1995-08-24 1997-01-02 Walther & Cie Ag Drying plant control system esp. suitable for treatment of sewage sludge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958920A (en) * 1975-06-03 1976-05-25 Rust Engineering Company System for controlling the operation of a multiple hearth furnace
US4696115A (en) * 1986-07-22 1987-09-29 Nabisco Brands, Inc. Method and apparatus for drying wet particulate material to a predetermined uniform moisture content
US4713893A (en) * 1986-10-31 1987-12-22 Consolidation Coal Co. Thermal dryer control system
GB8803380D0 (en) * 1988-02-13 1988-03-16 Gbe International Plc Rotary drier control by adjustment of air flow/air humidity
US5067254A (en) * 1990-05-25 1991-11-26 Cedarapids, Inc. Method and apparatus for modifying a veil of materials in a drum of a drying apparatus
US5309849A (en) * 1992-05-22 1994-05-10 Andritz Tcw Engineering Gmbh Sludge drying system with recycling exhaust air
GB9220428D0 (en) * 1992-09-28 1992-11-11 Barr Derek J Sludge treating process and apparatus
US5588222A (en) * 1995-03-15 1996-12-31 Beloit Technologies, Inc. Process for recycling combustion gases in a drying system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5069801A (en) * 1990-02-26 1991-12-03 Bio Gro Systems, Incorporated Indirect heat drying and simultaneous pelletization of sludge
US5279637A (en) * 1990-10-23 1994-01-18 Pcl Environmental Inc. Sludge treatment system
US5318184A (en) * 1992-09-10 1994-06-07 Georg Krebs Sludge drying system
DE4242747A1 (en) * 1992-12-17 1994-06-23 Steag Ag Process and plant for treating sludge
DE19531101C1 (en) * 1995-08-24 1997-01-02 Walther & Cie Ag Drying plant control system esp. suitable for treatment of sewage sludge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107764037A (en) * 2016-08-18 2018-03-06 迪蔼姆芬兰有限公司 For the method and arrangement recycled in drying process to air

Also Published As

Publication number Publication date
EP0789209A2 (en) 1997-08-13
DE59608836D1 (en) 2002-04-11
ATA159895A (en) 1996-11-15
EP0789209B1 (en) 2002-03-06
US5775004A (en) 1998-07-07
AT402636B (en) 1997-07-25

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