FI19992007A - Method and apparatus for treating lime mud - Google Patents

Method and apparatus for treating lime mud

Info

Publication number
FI19992007A
FI19992007A FI992007A FI19992007A FI19992007A FI 19992007 A FI19992007 A FI 19992007A FI 992007 A FI992007 A FI 992007A FI 19992007 A FI19992007 A FI 19992007A FI 19992007 A FI19992007 A FI 19992007A
Authority
FI
Finland
Prior art keywords
sludge
preheating
burning
smoke
smoke gases
Prior art date
Application number
FI992007A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI108235B (en
Inventor
Jouni Jaentti
Original Assignee
Andritz Ahlstrom Oy
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 Ahlstrom Oy filed Critical Andritz Ahlstrom Oy
Priority to FI992007A priority Critical patent/FI108235B/en
Publication of FI19992007A publication Critical patent/FI19992007A/en
Application granted granted Critical
Publication of FI108235B publication Critical patent/FI108235B/en

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  • Treatment Of Sludge (AREA)

Abstract

The present invention deals with a method for processing of the sludge arising at the causticisation layout of a pulp and cellulose factory, in which method the wet sludge is dried by means of the smoke gases resulting from the sludge burning and it is separated from the smoke gases and the dried sludge is heated by means of the smoke gasses coming from the sludge burning, is separated from the smoke gases and is fed into a burning layout and the temperature during the preheating is adjusted to a particular value within the range of 400 to 600 degrees Celsius. What is important about the invention is that the temperature during the preheating of the sludge is adjusted by bringing a portion of the preheated sludge to circulate to the drying stage for the sludge. By arranging the drying and preheating layouts for the sludge alongside each other, and not one on top of the other, the sludge flow required for adjustment of the temperature flows downward from the separator in the preheating stage by force of gravity directly to the sludge dryer without a separate transport pipe. <IMAGE>
FI992007A 1999-09-21 1999-09-21 Method and arrangement for processing of sludge FI108235B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI992007A FI108235B (en) 1999-09-21 1999-09-21 Method and arrangement for processing of sludge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI992007A FI108235B (en) 1999-09-21 1999-09-21 Method and arrangement for processing of sludge
FI992007 1999-09-21

Publications (2)

Publication Number Publication Date
FI19992007A true FI19992007A (en) 2001-03-21
FI108235B FI108235B (en) 2001-12-14

Family

ID=8555319

Family Applications (1)

Application Number Title Priority Date Filing Date
FI992007A FI108235B (en) 1999-09-21 1999-09-21 Method and arrangement for processing of sludge

Country Status (1)

Country Link
FI (1) FI108235B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024170009A1 (en) * 2023-02-17 2024-08-22 江门绿润环保科技有限公司 Low-temperature sludge drying system based on precise air control

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7628964B2 (en) 2005-11-21 2009-12-08 Andritz Oy Apparatus for treating lime mud

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024170009A1 (en) * 2023-02-17 2024-08-22 江门绿润环保科技有限公司 Low-temperature sludge drying system based on precise air control

Also Published As

Publication number Publication date
FI108235B (en) 2001-12-14

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Legal Events

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