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WO2009030186A1 - Dispositif de séchage pour boues d'épuration - Google Patents

Dispositif de séchage pour boues d'épuration Download PDF

Info

Publication number
WO2009030186A1
WO2009030186A1 PCT/DE2007/001757 DE2007001757W WO2009030186A1 WO 2009030186 A1 WO2009030186 A1 WO 2009030186A1 DE 2007001757 W DE2007001757 W DE 2007001757W WO 2009030186 A1 WO2009030186 A1 WO 2009030186A1
Authority
WO
WIPO (PCT)
Prior art keywords
sewage sludge
unit
transport
sludge
transport unit
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.)
Ceased
Application number
PCT/DE2007/001757
Other languages
German (de)
English (en)
Inventor
Siegfried Chazkjewitsch
Jürgen Hartmann
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.)
REIFLOCK VERWALTUNGS GmbH
Original Assignee
REIFLOCK VERWALTUNGS 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 REIFLOCK VERWALTUNGS GmbH filed Critical REIFLOCK VERWALTUNGS GmbH
Publication of WO2009030186A1 publication Critical patent/WO2009030186A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
    • F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
    • F26B17/205—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined with multiple chambers, e.g. troughs, in superimposed arrangement
    • 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
    • F26B1/005—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried
    • 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

Definitions

  • the invention relates to a drying device for sewage sludge, comprising a heating unit for heating the sewage sludge, the sludge inlet opening for introducing moist sewage sludge and a sludge outlet opening for
  • drying devices of the type mentioned are used in the prior art to dry sewage sludge for the purpose of volume and weight reduction.
  • the known devices have the disadvantage that they are not yet thought of the possibilities of their economic efficiency to an end.
  • the object of the invention is therefore to provide a drying device whose efficiency is improved over the known devices.
  • this object is achieved in that transport of sludge from the sludge inlet opening to the sludge outlet opening takes place via an Archimedean transport unit arranged in the interior of the heating unit and rotatable by means of a drive unit.
  • the apparatus according to the invention is characterized by the combination of features that a transport of sewage sludge from the sludge inlet opening to the sludge outlet opening via an arranged in 'inside of the heating unit, rotatable by means of a drive unit Archimedean
  • Transport unit is achieved, that sewage sludge under permanent dislocation while maintaining permanent
  • the transport unit is designed as a transport screw.
  • the transport unit may also be designed as a helix with a spiral trough conveyor having a free central region.
  • the transport unit together with the heating unit in a predetermined angle with respect to a storage surface of the device is arranged inclined.
  • a drive unit of a transport unit has a predefinable number of revolutions for the purpose of regulating the transport speed of sewage sludge. Even in the case that a high number of revolutions of a transport unit is necessary due to specific properties of a sewage sludge, a cascaded series connection of a
  • the 'transport unit is formed as a screw conveyor and bent in the region of its periphery so that in a return transport of sewage sludge from a peripheral region of the transport unit in one of the axis of the transport unit near area turning the Sewage sludge takes place.
  • the temperature of a hot gas is preferably also ' about 60 ° C to 80 ° C dimensioned. Efficient drying of sewage sludge is achieved at this temperature.
  • the proportion of dry matter is dimensioned to about 20% to 30%, as they are preferably used for drying by means of ' the device according to the invention use.
  • a rotatable cutting units 5 having comminuting unit is provided in order to crush the compacted sewage sludge in units of blocks before introduction into the sludge inlet port / the Heating with unit.
  • a 1 cutting unit is, preferably, but . not necessarily as a substantially rectangle-shaped cutting blade having two parallel cutting edges.
  • a 1 plurality are parallel ' arranged cutting units on a rotatable. Shaft arranged radially aligned.
  • two rotatable shafts arranged in parallel are provided, wherein the respective cutting units of the two shafts. are arranged at least partially overlapping and are rotatable in opposite directions.
  • a silo device for storing sewage sludge is provided above the sludge inlet opening of the heating unit. is, which has an adjustable outlet opening for a metered delivery of sewage sludge.
  • Fermentation gas from a digester tower filled with biological waste Fermentation gas from a digester tower filled with biological waste.
  • the hot gas for the Heating with unit by means of a 'gas / liquid heat exchanger is heated air, wherein the fluid side of the gas / liquid heat exchanger of i the heated cooling liquid of a powered by fermentation gas from a ' filled with biological waste digester motor of a combined heat and power plant is heated.
  • Fig. 1 shows a preferred embodiment of the device according to the invention in a schematic side view
  • FIG. 2 shows the comminution unit of the device according to the invention shown in FIG. 1 in a view from above;
  • FIG 3 shows a helix of the device according to the invention shown in Figure 1 in a side view.
  • the sewage sludge drying apparatus 100 of the present invention shown in Figs. 1 to 3 includes a heating unit 110 for heating the sewage sludge, having a sludge inlet opening 111 for introducing wet sewage sludge, and a sludge outlet opening 112 for discharging dried sewage sludge and a gas sludge.
  • Inlet port 121 for supplying hot gas into the heating unit 110 and a gas outlet port 122 for discharging the hot gas.
  • a transport of sewage sludge from the sludge inlet opening 111 to the sludge outlet opening 112 takes place via an Archimedean transport unit 130 arranged in the interior of the heating unit 110 and rotatable by means of a drive unit 131.
  • the transport unit 130 is arranged inclined together with the heating unit 110 at a predetermined angle relative to a storage surface 140 of the device 100, wherein the mud outlet port 112 is disposed above the mud inlet port 111.
  • the transport unit 130 is bent in the region of its periphery in such a way that when the sewage sludge is transported back from a peripheral region of the transport unit to a region near the axis of the transport unit 130, the sewage sludge is turned.
  • the transport unit 130 is formed as a helical spiral trough conveyor in which turning bars 132 are provided between opposing adjacent portions of the helix for returning sewage sludge from a peripheral area of the transport unit 130 to one of the transport unit axis (Fig. 130) near area to effect a turning of the sewage sludge.
  • Each adjacent turning bars are offset by 90 ° from each other.
  • the drive unit 131 of a transport unit 130 has a predefinable number of revolutions for the purpose of controlling the transport speed of sewage sludge.
  • the temperature of a hot gas is measured at 70 ° C, wherein the proportion of dry matter in a sewage sludge is sized to about 25%.
  • a sewage sludge with about 25% dry matter is compressed into a plurality of block units.
  • Heating units 110 cascaded one behind the other.
  • the illustrated drying apparatus 100 includes a crushing unit 150 containing rotatable cutting units 151 for crushing sewage sludge compressed in block units prior to being introduced into the mud inlet port 111 of the heating unit 110.
  • a cutting unit 151 is designed as a substantially rectangular, two parallel cutting edges 152 having cutting blade, and a plurality of parallel arranged cutting units 151 is arranged radially aligned on a rotatable shaft 153.
  • two parallel rotatable shafts 153 are provided, wherein the respective cutting units 151 of the two shafts 153 are arranged at least partially overlapping and are rotatable in opposite directions.
  • a silo device 160 for storing sewage sludge which has an adjustable outlet opening 161 for metered delivery of sewage sludge.
  • the hot gas for the heating unit 110 is burned fermentation gas from a digestion tower filled with biological waste.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Sludge (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne un dispositif de séchage (100) pour boues d'épuration, comprenant une unité de chauffage (110) destinée au chauffage des boues d'épuration et présentant une ouverture d'admission des boues (111) pour l'introduction des boues d'épuration humides, et une ouverture d'évacuation des boues (112) pour l'évacuation des boues d'épuration séchées, ainsi qu'une ouverture d'admission des gaz (121) pour l'amenée des gaz chauds dans l'unité de chauffage (110) et une ouverture d'évacuation des gaz (122) pour l'évacuation des gaz chauds. En vue d'améliorer la rentabilité du dispositif par rapport aux dispositifs connus, l'invention est caractérisée en ce qu'un transport de boues d'épuration de l'ouverture d'admission des boues (111) à l'ouverture d'évacuation des boues (112) s'effectue via une unité de transport à vis d'Archimède (130), montée à l'intérieur de l'unité de chauffage (110), entraînée en rotation au moyen d'une unité d'entraînement (131).
PCT/DE2007/001757 2007-09-04 2007-09-28 Dispositif de séchage pour boues d'épuration Ceased WO2009030186A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007042006.6 2007-09-04
DE200710042006 DE102007042006A1 (de) 2007-09-04 2007-09-04 Trocknungs-Vorrichtung für Klärschlämme

Publications (1)

Publication Number Publication Date
WO2009030186A1 true WO2009030186A1 (fr) 2009-03-12

Family

ID=39673522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001757 Ceased WO2009030186A1 (fr) 2007-09-04 2007-09-28 Dispositif de séchage pour boues d'épuration

Country Status (2)

Country Link
DE (1) DE102007042006A1 (fr)
WO (1) WO2009030186A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105753286A (zh) * 2016-02-29 2016-07-13 普利资环境科技（苏州）有限公司 一种污泥干燥设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113000136A (zh) * 2021-04-03 2021-06-22 牛青源 一种环保型固体废料分类筛选装置
CN117088589B (zh) * 2023-09-11 2025-01-14 武汉天源环保股份有限公司 一种污泥干化预处理装置及方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB103521A (en) * 1916-01-28 1917-01-29 Richard Henry Annison An Improved Apparatus for Drying and Treating Sewage Sludge, Copra and other Materials in Bulk.
GB926877A (en) * 1958-10-08 1963-05-22 Henry Charles Rothery Improvements in or relating to drying apparatus
US4003717A (en) * 1975-06-27 1977-01-18 Carad, Inc. Method and apparatus for recovering by-product silt fines from a slurry thereof
US4240209A (en) * 1978-06-19 1980-12-23 Cuthbertson Bobbie G Method of and apparatus for drying grain and the like
US4430057A (en) * 1982-02-18 1984-02-07 Selas Corporation Of America Calciner screw construction
US5245762A (en) * 1992-08-24 1993-09-21 Hartis Dennis R Sludge drying apparatus and method
EP0588152A1 (fr) * 1992-09-14 1994-03-23 Bayer Ag Procédé pour le séchage continu de boues d'épuration
DE10002535A1 (de) * 1999-12-20 2001-07-12 Faten Hasenkopf Vorrichtung zum Trocknen von Schlamm
US20020073903A1 (en) * 2000-12-20 2002-06-20 Vincent Promuto Method and apparatus for drying and incineration of sewage sludge
WO2003026768A2 (fr) * 2001-09-27 2003-04-03 Global Resoucre Recovery Organization, Inc. Procede et dispositif pour le traitement de materiau humide

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117630A1 (de) * 1991-05-29 1992-12-03 Schmidt Burr Peter Thermischer reaktor, insbesondere duennschichttrockner
DE9114967U1 (de) * 1991-12-02 1993-04-01 Buss Ag, Basel Verdampfereinrichtung zur Behandlung von Schlämmen
DE4215530C2 (de) * 1992-03-05 1995-07-13 Enning Hans Juergen Verfahren zum Betrieb einer Anlage zum Trocknen von Faulschlamm und für das Verfahren geeignete Anlage
DE19644465C2 (de) * 1996-08-26 2002-06-13 Manfred Boehme Verfahren und Vorrichtung zur Trocknung eines Trocknungsgutes, insbesondere von Schlamm
AU7420298A (en) * 1997-05-09 1998-12-08 Solutions Mabarex Inc. Method for reducing moisture content
IES990902A2 (en) * 1998-10-30 2000-11-15 Lawrence Thomas Doyle A process and apparatus for treating waste material

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB103521A (en) * 1916-01-28 1917-01-29 Richard Henry Annison An Improved Apparatus for Drying and Treating Sewage Sludge, Copra and other Materials in Bulk.
GB926877A (en) * 1958-10-08 1963-05-22 Henry Charles Rothery Improvements in or relating to drying apparatus
US4003717A (en) * 1975-06-27 1977-01-18 Carad, Inc. Method and apparatus for recovering by-product silt fines from a slurry thereof
US4240209A (en) * 1978-06-19 1980-12-23 Cuthbertson Bobbie G Method of and apparatus for drying grain and the like
US4430057A (en) * 1982-02-18 1984-02-07 Selas Corporation Of America Calciner screw construction
US5245762A (en) * 1992-08-24 1993-09-21 Hartis Dennis R Sludge drying apparatus and method
EP0588152A1 (fr) * 1992-09-14 1994-03-23 Bayer Ag Procédé pour le séchage continu de boues d'épuration
DE10002535A1 (de) * 1999-12-20 2001-07-12 Faten Hasenkopf Vorrichtung zum Trocknen von Schlamm
US20020073903A1 (en) * 2000-12-20 2002-06-20 Vincent Promuto Method and apparatus for drying and incineration of sewage sludge
WO2003026768A2 (fr) * 2001-09-27 2003-04-03 Global Resoucre Recovery Organization, Inc. Procede et dispositif pour le traitement de materiau humide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105753286A (zh) * 2016-02-29 2016-07-13 普利资环境科技（苏州）有限公司 一种污泥干燥设备

Also Published As

Publication number Publication date
DE102007042006A1 (de) 2009-03-05

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