EP1270075B1 - Regelbare Austragswand zum Austragen des Mahlgutes aus einer Rohrmühle - Google Patents

Regelbare Austragswand zum Austragen des Mahlgutes aus einer Rohrmühle Download PDF

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Publication number
EP1270075B1
EP1270075B1 EP20020012223 EP02012223A EP1270075B1 EP 1270075 B1 EP1270075 B1 EP 1270075B1 EP 20020012223 EP20020012223 EP 20020012223 EP 02012223 A EP02012223 A EP 02012223A EP 1270075 B1 EP1270075 B1 EP 1270075B1
Authority
EP
European Patent Office
Prior art keywords
grinding
stock
mill
discharge
discharge diaphragm
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.)
Expired - Lifetime
Application number
EP20020012223
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1270075A1 (de
Inventor
Alexander Hagedorn
Norbert Aufsfeld
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 EP1270075A1 publication Critical patent/EP1270075A1/de
Application granted granted Critical
Publication of EP1270075B1 publication Critical patent/EP1270075B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices

Definitions

  • the invention relates to a discharge wall for discharging the ground material from a tube mill, wherein the Mahlgutaustragsende in the tube mill shell built-in discharge wall is double-walled with a permeable for the ground good with slot openings provided front wall, with a spaced from the front wall closed back wall, with one both walls of the discharge wall connecting central mill gas exhaust duct and with over its Scope distributed regrind exit openings.
  • a built between two grinding chambers in a tube mill double-walled transfer wall composed of segments, which is controllable, is from a brochure of the company Magotteaux S.A., Vaux-S-Chchangingmont / Belgium. That's where it's going the slots of the front wall in the cavity of the carry wall entering regrind central to the inside in the central mill gas exhaust duct discharged, through a variety of scoop pieces, those around the circumference of the central mill gas exhaust duct distributed openings arranged radially and around their longitudinal axis are rotatably arranged.
  • DE-437 856 C discloses a tube mill discharge wall Slot openings known at the Mahlgutaustragsseite in the Slotted openings are arranged on the adaptable attachment body a common carrier plate with centrally located in the mill neck Axle are fixed, so that by axial displacement of the carrier plate the free cross sections of the slot openings more or less can be greatly throttled.
  • the well-known Rohrmühlenaustragswand is not double-walled, d. H. not with a closed back wall for the regrind fitted.
  • the invention is therefore based on the object for discharging the Ground material from a tube mill to create a discharge wall, the is adjustable without great installation effort in the way that too targeted at changing grinding properties of the respective regrind Influence on the grinding stock load in the grinding chambers and on the each necessary Mahlgutverweilzeit can be taken.
  • the metering valves can basically with be formed translational sliding direction. After a special one Feature of the invention are those around the radially inner circumference the discharge wall distributed Mahlgutaustragsö réelleen about formed crescent-shaped, and the metering slides are then as Rotary slide formed, also with approximately crescent-shaped configuration, so that depending on the rotational position of the rotary valve respectively a more or less large part of the regrind exit opening can be covered is.
  • Rotary valve a certain backflow effect on the regrind, thereby targeted influence on the residence time of the ground material in the grinding chamber can be taken. So z. B. even with changing Grinding characteristics of the regrinds the grinding stock level, d. H. the loading of the grinding chamber with regrind reasonably constant being held.
  • the adjustable metering slides according to the invention in particular, the rotatable rotary valve allow one crizeingriff not only on the regrind, but also on the Process gas in the tube mill, and the rotary valve can be set so that in all twist positions the way for the mill gas or process gas still remains open.
  • the Mahlgutaustrittsö Samuelen with their rotary valves can in the Closed back wall of the double-walled discharge wall arranged distributed around the circumference of the central mill gas exhaust duct be.
  • the Mahlgutaustrittsö Samuelen can each over at least two adjacent segments the discharge wall composed of radial segments, so that then the radially inner circumference of the discharge wall takes the shape of a polygon.
  • the rotary valves are outside the discharge wall segments arranged at the Mahlgutaustrittsö Maschinenen and on this Wear resistant.
  • Fig. 1 shows a detail of the Mahlgutaustragsende a tube mill with the tube mill shell 10 and with a grinding chamber, the with grinding media 11, such as. B. steel balls, and with the in between lying millbase is filled.
  • the grinding stock discharge end is in the tube mill shell 10 is a double-walled from radial and usually made of cast segment chambers assembled discharge wall installed with a for the ground good permeable, provided with slot openings 12 Front wall 13 and spaced from the front wall closed rear wall 14.
  • Both walls of the discharge wall stand through a central, slightly tapered withdrawal channel 15 in conjunction, through which the bulk of the Mill gas 16, such as. As air, through a central sieve 17 therethrough is deducted.
  • the Mahlgutaustrittsö réelleen 19 formed in approximately crescent shape and they are rotatable by means of a respective one about a central bolt 20 Rotary valve 21 with also about half moon-shaped configuration depending on the rotational position more or less extensively coverable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP20020012223 2001-06-20 2002-06-04 Regelbare Austragswand zum Austragen des Mahlgutes aus einer Rohrmühle Expired - Lifetime EP1270075B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10129748 2001-06-20
DE2001129748 DE10129748A1 (de) 2001-06-20 2001-06-20 Regelbare Austragswand zum Austragen des Mahlgutes aus einer Rohrmühle

Publications (2)

Publication Number Publication Date
EP1270075A1 EP1270075A1 (de) 2003-01-02
EP1270075B1 true EP1270075B1 (de) 2005-12-14

Family

ID=7688840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020012223 Expired - Lifetime EP1270075B1 (de) 2001-06-20 2002-06-04 Regelbare Austragswand zum Austragen des Mahlgutes aus einer Rohrmühle

Country Status (4)

Country Link
EP (1) EP1270075B1 (cs)
CZ (1) CZ297397B6 (cs)
DE (2) DE10129748A1 (cs)
DK (1) DK1270075T3 (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004054088A1 (de) * 2004-11-09 2006-05-11 Polysius Ag Rohrmühle
CN101884949A (zh) * 2009-05-13 2010-11-17 波利科普公司 排放端内衬
CN104258940B (zh) * 2014-09-05 2017-01-11 芜湖新瑞新型建材有限公司 一种湿式球磨机进料装置
CN109012911A (zh) * 2018-10-12 2018-12-18 景德镇陶瓷大学 一种高效折弯式连续球磨机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE437856C (de) * 1926-11-29 Fellner & Ziegler Akt Ges Rohr- oder Trommelmuehle mit einer mit Austragsschlitzen fuer das zerkleinerte Gut versehenen Kammerabschlusswand
DE477135C (de) * 1927-06-28 1929-06-01 Fried Krupp Grusonwerk Akt Ges Trommelmuehle fuer Nassvermahlung
FR707481A (fr) * 1930-02-03 1931-07-08 Krupp Fried Grusonwerk Ag Dispositif obturateur pour l'orifice d'évacuation de broyeurs à boulets
DE557714C (de) * 1930-08-12 1932-08-26 J M Voith Maschinenfabrik Vorrichtung zur Regelung des Leistungs- und Mahlungsgrades bei Stabmuehlen
US2023331A (en) * 1933-02-21 1935-12-03 Lowenhielm Carl Gustaf Halvar Discharge means for ball or rod mills and the like

Also Published As

Publication number Publication date
CZ20022181A3 (cs) 2003-02-12
DE50205247D1 (de) 2006-01-19
DK1270075T3 (da) 2006-04-24
EP1270075A1 (de) 2003-01-02
DE10129748A1 (de) 2003-01-23
CZ297397B6 (cs) 2006-12-13

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