EP1072331A1 - Dispositif de nettoyage pour fours métallurgiques, en particulier de fours à creuset - Google Patents

Dispositif de nettoyage pour fours métallurgiques, en particulier de fours à creuset Download PDF

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Publication number
EP1072331A1
EP1072331A1 EP00115967A EP00115967A EP1072331A1 EP 1072331 A1 EP1072331 A1 EP 1072331A1 EP 00115967 A EP00115967 A EP 00115967A EP 00115967 A EP00115967 A EP 00115967A EP 1072331 A1 EP1072331 A1 EP 1072331A1
Authority
EP
European Patent Office
Prior art keywords
cleaning device
cutting tool
crucible
support
arm
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Withdrawn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
EP00115967A
Other languages
German (de)
English (en)
Inventor
Günter Schneider
Klaus Holzmann
Helmut Ullwer
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.)
MKM Mansfelder Kupfer und Messing GmbH
Original Assignee
MKM Mansfelder Kupfer und Messing 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 MKM Mansfelder Kupfer und Messing GmbH filed Critical MKM Mansfelder Kupfer und Messing GmbH
Publication of EP1072331A1 publication Critical patent/EP1072331A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/001—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag comprising breaking tools, e.g. hammers, drills, scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/10—Crucibles

Definitions

  • the invention relates to a cleaning device for metallurgical furnaces, especially crucible furnaces.
  • the wall thickness of the refractory partition is relatively small and is often only less than 10 cm.
  • the refractory lining is exposed to considerable thermal and mechanical loads during the melting process of the metals. The lifespan of the crucible furnaces essentially depends on the durability of the refractory delivery.
  • the invention was based on the object of a cleaning device for metallurgical To create furnaces, especially crucible furnaces, with which an effective and the refractory delivery gentle cleaning of the oven is made possible.
  • the object is achieved by the features specified in claim 1. Suitable design variants are the subject of claims 2 to 12.
  • the proposed cleaning device With the proposed cleaning device, the dross formed on the inner wall of crucible furnaces can be removed almost completely within predetermined cleaning intervals, without damaging the refractory lining. When using a cleaning device with only one cutting tool, the dross is gradually removed evenly over the entire inner wall of the crucible. If a cleaning device with a plurality of cutting tools arranged one above the other, which overlap slightly in their area of action, is used, the cleaning process can be carried out even more effectively since the area of action is considerably larger in the case of a plurality of cutting tools. The crucible furnace is cleaned when the furnace is warm.
  • the use of the mechanical cleaning device leads to a considerable reduction in workload, since the otherwise heavy physical work of the furnace personnel can be dispensed with when exposed to great heat.
  • the entire cleaning device is suspended in the crucible furnace on a crane that is usually found in the foundry.
  • a compressed air motor is used as the drive unit for the cutting tool, which sufficiently fulfills the required requirements.
  • the speed of the rotor is infinitely adjustable.
  • the cleaning device consists of a frame which can be lowered into the crucible furnace by means of a crane and which has a central support on which a plurality of support arms running in a star shape are arranged, at least three support arms lying in one plane. The support arms are spaced apart.
  • a rotating cutting tool preferably a milling cutter, is located on at least one of the support arms.
  • the cutting tool is arranged to be movable in the direction of the inner wall of the crucible. Either the cutting tool is axially displaceable on the support arm or the support arm is telescopic or the support arm is formed in two parts, the outer part of the support arm, which points in the direction of the crucible furnace inner wall, being pivotable.
  • the cutting tool is attached to this part.
  • the other two support arms in a version with three support arms, are rigid and serve as a guiding and stabilizing element. The free ends of the support arms with the guide elements lie against the inner wall of the crucible.
  • the support arms are designed to be adjustable in the radial direction.
  • the cleaning device can be operated or guided manually after insertion in the crucible furnace or automatically by means of a corresponding additional device as a guide frame.
  • the cleaning device rotates automatically in the operating state due to the rotating movements of the cutting tools.
  • the speed and motor power for the cutting tools are designed so that there is a balance between the contact pressure and a sufficient speed.
  • the cleaning device shown in Figure 1 consists of a solid frame 1 with a central support 2, at the lower end of which three outwardly directed, star-shaped support arms 4, 5 and 6 are arranged in a horizontal plane at the same distance from each other.
  • the support arms 4 and 5 are rigid and each have at their free ends a rotatable guide roller 4a or 5a, which abut the inner wall of the crucible in the operating state.
  • the two support arms 4, 5 with the guide rollers 4a and 5a serve as a guiding and stabilizing element during the removal of the scabies.
  • the length of the support arm 6 is shorter than that of the other two support arms 4 and 5.
  • a swivel arm 7 On the support arm 6 there is also a swivel arm 7, on the free end of which a rotatable milling cutter 8 with an associated drive device, a compressed air motor 9, is flanged.
  • the movement of the swivel arm 7 is limited by a stop 3 attached to the support arm 6.
  • the required compressed air is fed to the motor 9 via a flexible hose line 10.
  • a stop device 11 for a crane or another suitable lifting device is attached.
  • three spoke-shaped support rods 12 are arranged at the upper end, which are connected to an annular rod 13, in the form of a steering wheel.
  • the length of the support rods 12 is such that they protrude beyond the edge of the crucible furnace 16.
  • a cover 14 Arranged around the central support 2 is a cover 14 resting on the edge of the crucible furnace 16, which is intended to prevent dust or removed particles from being thrown out of the furnace during the operating state of the cleaning device.
  • FIGS. 2 and 3 show the cleaning device in the operating state in order to remove the dross 17 adhering to the inner wall of the crucible furnace 16.
  • This cleaning device is inserted into the crucible furnace 16 by means of a crane and is raised or lowered in stages by the crane during operation. After switching on the compressed air motor 9, the milling cutter 8 fastened to a shaft is set in rotation.
  • the milling cutter 8 is pressed against the scabies 17 and wears them off.
  • the swivel arm 7 and the speed and the power of the motor 9 are coordinated so that in the operating state a balance between the contact pressure of the cutter 8 against the inner wall of the crucible furnace 16 and the respective speed is set, so that the cutter 8 itself in the working state stabilized and a so-called Stalling "is prevented.
  • the cleaning device is operated by an operator who guides it on the holding rods 12, 13.
  • the swivel arm 7 moves in the direction of the stop 3, which abuts the stop 3 after removal of the required layer thickness in the end position and the cutter 8 is no longer pressed against the inner wall of the crucible furnace 16. This prevents damage to the refractory lining of the inner wall of the crucible.
  • the cleaning device is lowered a little deeper into the crucible furnace by means of the crane in order to clean the next section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Cleaning In General (AREA)
EP00115967A 1999-07-28 2000-07-26 Dispositif de nettoyage pour fours métallurgiques, en particulier de fours à creuset Withdrawn EP1072331A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29913152U DE29913152U1 (de) 1999-07-28 1999-07-28 Reinigungsvorrichtung für metallurgische Öfen, insbesondere Tiegelöfen
DE29913152U 1999-07-28

Publications (1)

Publication Number Publication Date
EP1072331A1 true EP1072331A1 (fr) 2001-01-31

Family

ID=8076744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115967A Withdrawn EP1072331A1 (fr) 1999-07-28 2000-07-26 Dispositif de nettoyage pour fours métallurgiques, en particulier de fours à creuset

Country Status (2)

Country Link
EP (1) EP1072331A1 (fr)
DE (1) DE29913152U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006077098A1 (fr) * 2005-01-19 2006-07-27 Penox Gmbh Dispositif permettant d'eliminer des residus solides de metal fondu d'un four a fusion et installation de production d'oxyde metallique pourvue dudit dispositif
CN105127382A (zh) * 2014-05-27 2015-12-09 宝钢特钢有限公司 用于模铸圆形电极棒的钢锭模的清理装置及其清理方法
CN107097985A (zh) * 2017-04-08 2017-08-29 泉州台商投资区尚良建筑装饰有限公司 一种具有自动清洁料斗功能的灌装机
CN111672445A (zh) * 2020-06-25 2020-09-18 曾秋香 一种化工用立式高效反应釜

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289481B (zh) * 2014-10-27 2016-02-03 无锡纳润特科技有限公司 化工搅拌桶的清洁装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1569203A (en) * 1923-11-21 1926-01-12 Marland Refining Company Scraping device
US2931060A (en) * 1957-01-30 1960-04-05 Salvatore Compagnone Ladle sculling machine
US3487841A (en) * 1969-02-19 1970-01-06 Ethyl Corp Autoclave cleaning device
EP0451045A1 (fr) * 1990-04-03 1991-10-09 Regie Nationale Des Usines Renault S.A. Appareil de décrassage de scories

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1569203A (en) * 1923-11-21 1926-01-12 Marland Refining Company Scraping device
US2931060A (en) * 1957-01-30 1960-04-05 Salvatore Compagnone Ladle sculling machine
US3487841A (en) * 1969-02-19 1970-01-06 Ethyl Corp Autoclave cleaning device
EP0451045A1 (fr) * 1990-04-03 1991-10-09 Regie Nationale Des Usines Renault S.A. Appareil de décrassage de scories

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006077098A1 (fr) * 2005-01-19 2006-07-27 Penox Gmbh Dispositif permettant d'eliminer des residus solides de metal fondu d'un four a fusion et installation de production d'oxyde metallique pourvue dudit dispositif
CN105127382A (zh) * 2014-05-27 2015-12-09 宝钢特钢有限公司 用于模铸圆形电极棒的钢锭模的清理装置及其清理方法
CN105127382B (zh) * 2014-05-27 2017-04-26 宝钢特钢有限公司 用于模铸圆形电极棒的钢锭模的清理装置及其清理方法
CN107097985A (zh) * 2017-04-08 2017-08-29 泉州台商投资区尚良建筑装饰有限公司 一种具有自动清洁料斗功能的灌装机
CN111672445A (zh) * 2020-06-25 2020-09-18 曾秋香 一种化工用立式高效反应釜

Also Published As

Publication number Publication date
DE29913152U1 (de) 1999-12-16

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