EP0776982A2 - Procédé de sèchage mécanique de cossettes de betterave sucrière après extraction - Google Patents

Procédé de sèchage mécanique de cossettes de betterave sucrière après extraction Download PDF

Info

Publication number: EP0776982A2
Authority: EP; European Patent Office
Prior art keywords: suspension; press; gypsum; chips; salt
Prior art date: 1995-12-08
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

EP96116539A

Other languages

German (de)

English (en)

Other versions

EP0776982A3 (fr

EP0776982B1 (fr

Inventor

Günther Dipl.-Ing. Ross

Rüdiger Hille

Klaus-Michael Dr. Rer.Nat. Bliesener

Rudolf Dipl.-Ing. Henze

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.)

BMA Braunschweigische Maschinenbauanstalt AG

Original Assignee

BMA Braunschweigische Maschinenbauanstalt AG

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.)

1995-12-08

Filing date

1996-10-16

Publication date

1997-06-04

1996-10-16 Application filed by BMA Braunschweigische Maschinenbauanstalt AG filed Critical BMA Braunschweigische Maschinenbauanstalt AG

1997-06-04 Publication of EP0776982A2 publication Critical patent/EP0776982A2/fr

1999-03-17 Publication of EP0776982A3 publication Critical patent/EP0776982A3/fr

2002-04-10 Application granted granted Critical

2002-04-10 Publication of EP0776982B1 publication Critical patent/EP0776982B1/fr

2016-10-16 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices

Definitions

the invention relates to a method for the mechanical dewatering of extracted sugar beet chips.
the single and double spindle presses of vertical and horizontal design which are generally used today for pressing out chips, work according to the volume displacement principle, whereby the pressure applied and the pressing time are the relevant operating parameters for the pressing.
the improvement in the dry matter content in the pressed chips by lowering the spindle speed (in order to thereby increase the pressing time) leads to a reduction in throughput.
An increase in the dry matter content by lengthening the pressing time thus inevitably requires higher capital-related costs.
pressing aids are of particular importance. These are understood to mean additives or measures which - without reducing the throughput of the wood chip press - increase the dry matter content achieved in the wood chips. Pressing aids are, in particular, acids and gypsum, which are added to the fresh extraction or press water.
the pH value in the press water during pressing has a favorable influence on pressing, insofar as it is of the order of about 5.0.
the disadvantages associated with such measures must also be considered, such as B. the increased molasses due to ion exchange processes and the formation of calcium lactate. With excessive acidification, the dry pulp yield and the filter station in the juice cleaning stage can be adversely affected.
the invention has for its object to increase the dry matter content in the press chips without reducing the throughput of the chip press.
This object is achieved in that a suspension of salt or salts of polyvalent ions in the pressing area is introduced directly into the pellet pressed layer, preferably in the central region of the press section, that is to say after most of the press water has already been pressed off.
a suspension is instead introduced directly into the shredder press according to the invention.
a suspension with 20-60% DM is preferably used.
the suspension is only introduced after most of the press water has been pressed off. The feed in this area leads to a significant increase in the internal friction and thus to higher torques on the press spindle and thereby to a significant increase in the dry matter content achieved in the pressed chips.
the salt suspension introduced is largely absorbed in the chips and the dissolved suspension thus remains in the extraction cycle.
the extraction water can thus be processed by metering the salt feed into the wood chip press.
the salt introduced into the pressing section e.g. B. gypsum, used twice, once mechanically by increasing the frictional forces, as described above, and chemically, in that part of the gypsum is dissolved by the press water and gets into the usual extraction cycle with it and thereby in a known manner via a Ion exchange process increases the dry matter in the pressed chips.
the conventional addition of gypsum to the extraction water can therefore be omitted without replacement.
the same treatment device for the extraction water can in principle be used for the method according to the invention, so that the changed gypsum feed into the wood chip press without significant additional equipment expenditure significantly improves the dry substance values of the pressed wood chips and thus a substantial saving in costs for thermal drying is achieved.
the gentle treatment of the chips leads to a significantly lower formation of pulp and thus also results in a lower dust content in the dried chips.
the inventive method can also be used, for. B with carbo lime and thus ensures the disposal of waste products in the sugar factory.
the suspension is introduced centrally into the chip compression layer thickness. It is advantageous if, when using a screw press, the suspension is fed in at several circumferential points via retainers.
the supply is preferably carried out under pressure and using at least one metering pump, via which the suspension supply can be controlled. At constant speed of the press spindle and thus constant chip throughput through the press, the suspension supply can also be kept constant.
salts of divalent ions can be used for the process according to the invention, the gypsum also having proven to be advantageous here.
the gypsum suspension can be prepared in a conventional manner by mixing lime milk and sulfuric acid in a stoichiometric ratio or by mixing dry plaster can be made into a subset of press and / or fresh water.
the salt addition is preferably 2 meq / 100 g beet.
Extracted chips removed from an extraction tower 3 are introduced into a chip press 1 via a line 2 and pressed on their way through the chip press 1.
the resulting press water is passed through a line 4 in addition to a fresh water supply 5 in the extraction tower 3.
a schnitzel / juice supply 6 and a tower juice outlet 7 are indicated.
a gypsum suspension of 20-60% DM is produced by supplying water 9 and CaSO 4 , which is centered via a line 10 from a metering pump 11 into a pick-up level 12 at several circumferential points of the shredder press 1 via pick-ups, not shown is fed into the chip layer thickness. This feed takes place approximately in the central region of the pressing section defined by the shredder press 1.
the extracted chips fed via line 2 into the chip press 1 have a dry matter content of about 11%.
the feeding of the gypsum suspension into the pulp press 1 is adjusted so that a content of 2 meq CaSO 4 results in / 100 g beet in the pumped into the extraction tower 3 via line 4 press water.
the pressed chips coming out of the chip press 1 are shown by the arrow 13.

Landscapes

Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Biochemistry (AREA)
Organic Chemistry (AREA)
Processing Of Solid Wastes (AREA)
Extraction Or Liquid Replacement (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Paper (AREA)
Compounds Of Unknown Constitution (AREA)
Fertilizers (AREA)

EP96116539A 1995-12-08 1996-10-16 Procédé de sèchage mécanique de cossettes de betterave sucrière après extraction Expired - Lifetime EP0776982B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19545803		1995-12-08
DE19545803A DE19545803C2 (de)	1995-12-08	1995-12-08	Verfahren zur mechanischen Entwässerung extrahierter Zuckerrübenschnitzel

Publications (3)

Publication Number	Publication Date
EP0776982A2 true EP0776982A2 (fr)	1997-06-04
EP0776982A3 EP0776982A3 (fr)	1999-03-17
EP0776982B1 EP0776982B1 (fr)	2002-04-10

Family

ID=7779535

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96116539A Expired - Lifetime EP0776982B1 (fr)	1995-12-08	1996-10-16	Procédé de sèchage mécanique de cossettes de betterave sucrière après extraction

Country Status (4)

Country	Link
US (1)	US6106632A (fr)
EP (1)	EP0776982B1 (fr)
DE (2)	DE19545803C2 (fr)
NO (1)	NO964502L (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8258423B2 (en) *	2009-08-10	2012-09-04	The Esab Group, Inc.	Retract start plasma torch with reversible coolant flow
RU2542530C1 (ru) *	2013-08-13	2015-02-20	Андрей Михайлович Черников	Способ получения сушеного свекловичного жома
CN103789457B (zh) *	2014-01-26	2016-10-05	华南理工大学	一种制糖废粕助压的方法及装置
EP3152334A4 (fr)	2014-06-03	2018-02-28	Putsch&Company, Inc.	Procédé de production de pâte à papier à partir de betteraves à sucre

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2332062A (en) *	1941-02-12	1943-10-19	Thomas R Cutler	Method of extracting sugar from sugar beets
US3100725A (en) *	1958-10-15	1963-08-13	Rose Downs & Thompson Ltd	Extraction of sugar juice with screw press
DE2906528A1 (de) *	1979-02-20	1980-09-04	Sueddeutsche Zucker Ag	Verfahren zur herstellung von ruebenschnitzeln hohen trockensubstanzgehaltes
DE3041508C1 (de) *	1980-11-04	1982-07-08	Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter	Verfahren zur Herstellung von Zuckerruebenschnitzeln hohen Trockensubstanzgehalts
FR2527138A1 (fr) *	1982-05-24	1983-11-25	Sica Pulposec Chevrieres	Presse continue, en particulier pour le pressage des pulpes de betteraves et autres produits contenant des jus
JPS60168400A (ja) *	1984-02-14	1985-08-31	日本甜菜製糖株式会社	湿甜菜パルプの圧搾脱水方法
DE3921504A1 (de) *	1989-06-30	1991-01-03	Aktien Zuckerfabrik Schoeppens	Verfahren und vorrichtung zur herstellung eines rohstoffes aus extrahierten zuckerruebenschnitzeln
US5273625A (en) *	1990-12-10	1993-12-28	Macmillan Bloedel Limited	Method of treating bleached pulp on a washer with calcium ions to remove sodium ions
JP3281067B2 (ja) *	1992-11-10	2002-05-13	日本甜菜製糖株式会社	甜菜パルプ圧搾脱水助材用石膏液の調製方法
DE59401399D1 (de) *	1994-04-08	1997-02-06	Braunschweigische Masch Bau	Verfahren zur Fest-Flüssig-Extrahierung und Extraktionsturm zur Durchführung des Verfahrens

1995
- 1995-12-08 DE DE19545803A patent/DE19545803C2/de not_active Expired - Fee Related
1996
- 1996-10-16 DE DE59609049T patent/DE59609049D1/de not_active Expired - Fee Related
- 1996-10-16 EP EP96116539A patent/EP0776982B1/fr not_active Expired - Lifetime
- 1996-10-23 NO NO964502A patent/NO964502L/no not_active Application Discontinuation
- 1996-12-09 US US08/762,188 patent/US6106632A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0776982A3 (fr)	1999-03-17
EP0776982B1 (fr)	2002-04-10
DE19545803C2 (de)	1999-07-29
DE19545803A1 (de)	1997-06-12
DE59609049D1 (de)	2002-05-16
NO964502L (no)	1997-06-09
NO964502D0 (no)	1996-10-23
US6106632A (en)	2000-08-22

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1997-06-25	GBC	Gb: translation of claims filed (gb section 78(7)/1977)
1997-07-18	EL	Fr: translation of claims filed
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Publication	Publication Date	Title
DE2458929C3 (de)	1979-06-28	Verfahren zum Herstellen von Faserplatten
EP1981998A1 (fr)	2008-10-22	Séchage peu polluant de cossettes de betterave à sucre
DE2641143A1 (de)	1977-03-31	Verfahren und vorrichtung zum gewinnen von oelen aus oelhaltigen rohstoffen
DE3545386C2 (fr)	1989-12-07
DE2906528A1 (de)	1980-09-04	Verfahren zur herstellung von ruebenschnitzeln hohen trockensubstanzgehaltes
EP0776982A2 (fr)	1997-06-04	Procédé de sèchage mécanique de cossettes de betterave sucrière après extraction
DD291790A5 (de)	1991-07-11	Verfahren zur herstellung von lignozellulosehaltigem faserstoff fuer die herstellung von faserplatten nach dem trockenverfahren
DD235861A5 (de)	1986-05-21	Verfahren zum entwaessern von schlaemmen und/oder organischen stoffen sowie vorrichtung zur durchfuehrung des verfahrens
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DE3333219C2 (de)	1986-10-23	Verfahren zum Bleichen von Hochausbeute-Zellstoffpulpen mittels Peroxiden unter Recyclisierung der Ablaugen
DE1233710B (de)	1967-02-02	Verfahren zur Verhinderung von Harzausscheidungen bei mechanischen Verfahren und chemischen Aufschlussverfahren der Zellstoff- oder Papierherstellung
DE3034042C2 (de)	1985-08-22	Verfahren zur Reduzierung des Harzgehalts bei der Herstellung von Zellulosepulpe aus Lignozellulose-Material
DE593890C (de)	1934-03-09	Verfahren und Einrichtung zur Herstellung von Zellstoff
DE3921504C2 (fr)	1992-03-05
DE2557865B2 (de)	1977-11-17	Verfahren zur alkalisierung von im zuckerherstellungsverfahren anfallenden abwaessern
DE3319284A1 (de)	1984-11-29	Verfahren zur herstellung eines futtermittels aus ruebenschnitzeln
EP0504130B1 (fr)	1995-11-29	Procédé pour la fabrication de produits en fibres ligno-cellulosiques
DE1517218C (de)	1971-02-11	Verfahren und Vorrichtung zum Auf schließen von Holz
DE834641C (de)	1952-03-20	Verfahren und Vorrichtung zur Herstellung von Produkten aus Holzfasern usw.
DE2928240C2 (de)	1983-07-21	Verfahren zum Verarbeiten und Haltbarmachen von eiweißhaltigen Grünpflanzen