EP1090686A1 - Installation de broyage - Google Patents

Installation de broyage Download PDF

Info

Publication number
EP1090686A1
EP1090686A1 EP00121525A EP00121525A EP1090686A1 EP 1090686 A1 EP1090686 A1 EP 1090686A1 EP 00121525 A EP00121525 A EP 00121525A EP 00121525 A EP00121525 A EP 00121525A EP 1090686 A1 EP1090686 A1 EP 1090686A1
Authority
EP
European Patent Office
Prior art keywords
classifier
grinding
fine material
fine
grinding plant
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Withdrawn
Application number
EP00121525A
Other languages
German (de)
English (en)
Inventor
Siegfried Strasser
Albert Süssegger
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.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag 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.)
Filing date
Publication date
Application filed by KHD Humboldt Wedag AG filed Critical KHD Humboldt Wedag AG
Publication of EP1090686A1 publication Critical patent/EP1090686A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B07B4/04—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall in cascades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator

Definitions

  • the invention relates to a grinding plant for producing fine flour Products, in particular for the production of raw cement flour and / or cement from cement clinker, with a comminution device for crushing the raw materials, a separator for separation of the fine material produced during comminution from the existing coarse material and a fines separator for Separation of the fine material from the classifier's sight air.
  • These shredding devices are then usually equipped with a classifier downstream, in which the shredded raw material with the help of Sifted air sighted at the desired grain size, d. H. Cut becomes.
  • the classifiers used are dynamic depending on the task or static classifiers. In the classifier, this is still too rough Shredded goods separated from sufficiently shredded fines, discharged from the classifier via a lock and then to the shredding device returned. The fine goods leave with the Visible air the classifier and is subsequently in a corresponding Device separated from the sight air.
  • This device is common another classifier with a downstream dedusting device.
  • V-classifier As static classifier without driven components is characterized by a low distinguishes specific energy requirements.
  • a rotary grinding plant is described in EP 0650763 B1, in the raw material with the help of a roller press on cement raw meal fineness is ground, the one used in the grinding plant Classifier is a static cascade classifier called V-classifier with two enclosed by the shaft - shaped classifier housing and between themselves forming a visual zone and the visual air in the Cross-flow flow through walls of view zones that are oblique down towards the discharge opening for the sighted Coarse material fraction inclined cascade or blind-like arrangement
  • Have baffles, the two baffle walls and thus the visual zone in between with one from the vertical deviating angles are arranged obliquely.
  • the coarse material fraction separated in this V-classifier becomes a roller press recycled while the fines fraction along with the visible air enters a cyclone dust separator, which with a second circular grinding plant with tube mill and own classifier in Connection is made, which is followed by a dedusting device.
  • the Static V-Sifter is a simple device with low wear values and a low specific Energy demand is available, for. B. in mill drying for the production of a raw cement meal for the kiln feed Usual specific energy requirements for the mill and dedusting fan with 4 to 9 kWh / t of raw meal still produced quite high.
  • the V-classifier immediately with a fine material separation device, preferably with an electrostatic filter to connect to a single component without the usual
  • the use of pipelines is initially clear Reduction of specific energy needs for the whole Grinding plant, primarily through the elimination of the by Pipelines otherwise caused flow resistance for the Sight air, which is otherwise caused by more electrical drive power for the fan must be compensated.
  • an electrostatic precipitator - a Bag filter is also possible - is used, is beyond no additional dedusting of the classifying air required, which also enables a saving in specific energy becomes.
  • V-classifier with the fine material separation device is according to the invention enables, for example, in the production of raw cement by grinding drying with only one induced draft fan the operation of the Cyclone heat exchanger furnace, the grinding system and the dedusting maintain.
  • V-classifier with the fine material separation device without intermediate Pipelines can be connected directly, it is necessary to open the outlet of the V-classifier for those with the Fine air loaded with fine material is not at the upper end of the Viewing housing, but to be arranged on the side of the viewing housing so that the classifying air also at least laterally into the fine material separating device can be initiated.
  • the grinding plant shown in this schematic flow diagram is a mill drying plant in which, for example, with the help of hot gas 20 Furnace or cooler exhaust, wet raw material 1 dried and at the same time crushed to a fine raw meal becomes.
  • shredding is carried out in a roller press 31 by the fresh air supply 24 and connection to the hot gas pipeline 23 is dusted.
  • the roller press 31 are a V-classifier 32 with an immediately subsequent electrostatic filter 37 to separate the flour-fine finished product 9 with With the help of visual air 25.
  • the classifying air 25 is formed from fed into the mill drying system Hot gas 20 as exhaust gas from a cyclone heat exchanger furnace, not shown and a mixed subset of cleaned Visual air 22, and it first passes through a hot gas pipe 46 through a laterally arranged inlet opening 34 into the V-classifier 32 a.
  • the V-classifier 32 now separates the from above via a Material inlet opening 33 into the visible material introduced into the V-classifier 32 4 at the desired particle size.
  • the coarse material obtained 10 is down through a coarse material discharge opening 35 from the V-classifier 32 discharged and the separated fine material 11 flows together with the viewing air 25 through a lateral outlet opening 36 out of the V-classifier 32 and immediately afterwards arranged side entry opening 39 in an electrostatic filter 37, which is formed with a pre-separation chamber 38.
  • electrostatic precipitator 37 now finds extensive separation of the Fine goods 11 instead of the exit openings 41 downwards the electrostatic filter 37 is discharged, and the cleaned viewing air 25 emerges from a lateral outlet opening 40 as dedusted exhaust gas 21 from the electrostatic filter 37.
  • the entire moist raw material 1 is first of all via a raw material feed device 30 fed into the grinding plant. Depending on Moisture and coarseness of the raw material 1 represents this raw material 1 then a subset 2 of the sifting task 4 and / or one Subset 3 of the roller press task 14, d. H. the raw material 1 can on the comminution device 31 and / or on the classifier 32 be introduced into the grinding circuit.
  • the subset 2 of the Raw material 1 with the entire roller press discharge 15 die Classifier task 4.
  • the coarse material 5 is here from the material to be separated 12 by a smaller second sifter 42, for example a dynamic one Separator separated.
  • the fines 6 obtained here have raw meal fineness and is fed to the finished product 9.
  • the entire separation material can alternatively be used 7 to this second sifter 42.
  • With sufficient Fineness of the materials deposited in the electrostatic filter 37 can the discharge 13 of the pre-separation chamber 38 directly with the Discharge 8 of the remaining chambers of the electrostatic precipitator 37 to the finished product 9 be brought together.
  • Fines separator to a compact unit is not on the described grinding plant or grinding drying plant Cement raw material production with an electrostatic precipitator as a fine material separation device limited, but everywhere there with grinding plants Applicable in the flour-fine products by the interaction of one Shredding system with a classifier and a fine material separator should be generated and where the technical and local Requirements for this assembly according to the invention given are.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
EP00121525A 1999-10-09 2000-09-30 Installation de broyage Withdrawn EP1090686A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19948725A DE19948725A1 (de) 1999-10-09 1999-10-09 Mahlanlage
DE19948725 1999-10-09

Publications (1)

Publication Number Publication Date
EP1090686A1 true EP1090686A1 (fr) 2001-04-11

Family

ID=7925098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121525A Withdrawn EP1090686A1 (fr) 1999-10-09 2000-09-30 Installation de broyage

Country Status (3)

Country Link
US (1) US6666394B1 (fr)
EP (1) EP1090686A1 (fr)
DE (1) DE19948725A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105536964A (zh) * 2015-12-18 2016-05-04 山东中粉建材股份有限公司 一种复合胶凝材料生产线及其装备***
CN106423395A (zh) * 2016-11-28 2017-02-22 广东技术师范学院 一种稀土抛光粉精细研磨装置
CN108262131A (zh) * 2017-11-13 2018-07-10 盐城吉达环保设备有限公司 一种双轴双转子选粉机联合粉磨***工艺

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005053617A1 (de) * 2005-11-10 2007-06-14 Khd Humboldt Wedag Gmbh Sichtereinrichtung zum Sichten von körnigem Gut
CN115138463A (zh) * 2022-05-16 2022-10-04 中信重工机械股份有限公司 一种能够节水节能的辊压机终粉磨***

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB674473A (en) * 1949-06-21 1952-06-25 Waagner Biro Ag A filtering plant for gases
DE4223762A1 (de) * 1992-07-18 1994-01-20 Kloeckner Humboldt Deutz Ag Sichter zum Sichten von körnigem Gut und Mahlanlage mit Einschaltung eines solchen Sichters
EP0650763A1 (fr) * 1993-10-30 1995-05-03 Klöckner-Humboldt-Deutz Aktiengesellschaft Installation de broyage en circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19651691C2 (de) * 1996-01-25 1998-07-02 Sorg Gmbh & Co Kg Verfahren und Vorrichtung zum Erschmelzen von Glas mit gleichzeitiger Abgasreinigung
DE19944421A1 (de) * 1999-09-16 2001-03-22 Kloeckner Humboldt Wedag Sichtereinrichtung zur Sichtung von körnigem Gut

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB674473A (en) * 1949-06-21 1952-06-25 Waagner Biro Ag A filtering plant for gases
DE4223762A1 (de) * 1992-07-18 1994-01-20 Kloeckner Humboldt Deutz Ag Sichter zum Sichten von körnigem Gut und Mahlanlage mit Einschaltung eines solchen Sichters
EP0650763A1 (fr) * 1993-10-30 1995-05-03 Klöckner-Humboldt-Deutz Aktiengesellschaft Installation de broyage en circuit
EP0650763B1 (fr) 1993-10-30 1998-12-02 DEUTZ Aktiengesellschaft Installation de broyage en circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105536964A (zh) * 2015-12-18 2016-05-04 山东中粉建材股份有限公司 一种复合胶凝材料生产线及其装备***
CN106423395A (zh) * 2016-11-28 2017-02-22 广东技术师范学院 一种稀土抛光粉精细研磨装置
CN108262131A (zh) * 2017-11-13 2018-07-10 盐城吉达环保设备有限公司 一种双轴双转子选粉机联合粉磨***工艺

Also Published As

Publication number Publication date
DE19948725A1 (de) 2001-04-12
US6666394B1 (en) 2003-12-23

Similar Documents

Publication Publication Date Title
DE102011055762B4 (de) Vorrichtung zum Sichten von körnigem Gut und Mahlanlage
EP0650763B1 (fr) Installation de broyage en circuit
EP1506058B1 (fr) Installation de broyage en circuit avec broyeur et separateur
EP0384101B1 (fr) Séparateur pneumatique pour trier des matériaux granulaires et installation de broyage comportant un tel séparateur
DE4223762B4 (de) Sichtereinrichtung zum Sichten von körnigem Gut und Umlaufmahlanlage mit Einschaltung einer solchen Sichtereinrichtung
DE102005054209A1 (de) Wälzmühle
WO2018046640A1 (fr) Procédé pour faire fonctionner un multicyclone pour séparer du grain fin et du grain très fin, et multicyclone
WO2015086554A1 (fr) Système de broyage à circulation à pré-tamis et broyeur à galets
DE2100235C3 (de) Anlage zum Trockenvermahlen von vorgebrochenen Rohmaterialien in einem gechlossenen Kreislaufsystem
DE3901436C2 (de) Verfahren zum Betrieb einer Kreislaufmahlanlage zur Mahlung und Trocknung feuchten Gutes
EP3074137B1 (fr) Procédé de fabrication de ciment
DE4039079A1 (de) Zweistufige vorzerkleinerung bei mahlanlagen
EP3895806A1 (fr) Dispositif et procédé de broyage de matières solides
EP1090686A1 (fr) Installation de broyage
EP3368222B1 (fr) Séparateur à cascades raccordé pneumatiquement et système de broyage à circulation doté de séparateurs à cascades raccordés pneumatiquement
DE19526040A1 (de) Verfahren und Anlage zur Zerkleinerung von Mahlgut
DE10137132A1 (de) Sichter
EP0125435A2 (fr) Procédé et installation de préparation de matières métalliques enrobées et d'obtention de particules métallifères sphéroidales
DE3710602A1 (de) Vorrichtung und verfahren zur aufbereitung von koernigem material, insbesondere weizen
DE3230824C2 (de) Mahltrocknungsanlage mit Vorzerkleinerung
DE19612187C2 (de) Verfahren zur Zerkleinerung und Trocknung von Braunkohle
DE2523471C2 (de) Behandlungsanlage für Schüttgüter
DE19946517C2 (de) Verfahren zur Zerkleinerung und Trocknung von feuchtem Brennstoff
DE102014015654B4 (de) Anlage zum Mahlen und Sichten von Zementklinker
WO2014037237A1 (fr) Dispositif et procédé de traitement de combustibles de substitution

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE DK FR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20011009

AKX Designation fees paid

Free format text: DE DK FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20041103