EP0205651B1 - Procédé et dispositif pour arracher les dépôts et les revêtements dans les tambours couchés, en particulier dans les fours à tambour rotatif - Google Patents

Procédé et dispositif pour arracher les dépôts et les revêtements dans les tambours couchés, en particulier dans les fours à tambour rotatif Download PDF

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Publication number
EP0205651B1
EP0205651B1 EP85111353A EP85111353A EP0205651B1 EP 0205651 B1 EP0205651 B1 EP 0205651B1 EP 85111353 A EP85111353 A EP 85111353A EP 85111353 A EP85111353 A EP 85111353A EP 0205651 B1 EP0205651 B1 EP 0205651B1
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EP
European Patent Office
Prior art keywords
roller
teeth
cylindrical tube
clearing
means according
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
EP85111353A
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German (de)
English (en)
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EP0205651A1 (fr
Inventor
Herbert Dipl.-Ing. Schweder
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.)
Spezialbaukombinat Magdeburg VEB
Original Assignee
Spezialbaukombinat Magdeburg VEB
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 Spezialbaukombinat Magdeburg VEB filed Critical Spezialbaukombinat Magdeburg VEB
Priority to AT85111353T priority Critical patent/ATE49803T1/de
Publication of EP0205651A1 publication Critical patent/EP0205651A1/fr
Application granted granted Critical
Publication of EP0205651B1 publication Critical patent/EP0205651B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/2075—Removing incrustations

Definitions

  • the invention relates to a method for complete or partial processing or breaking out of the approach and / or masonry from a tubular cylinder, in particular a rotary kiln of the cement industry, of the type specified in the introduction to claim 1.
  • the invention relates to a device for performing the method according to the preamble of patent claim 3.
  • a mechanical breakout or cleaning device is known from DD-PS 64 844, which is operated with ultrasonic vibrations.
  • US-A-3 025 548 discloses a device for removing solid attachments from a rotary kiln by means of a cutting head which is fastened to the free end of a dimensionally stable rod and is introduced into the rotary kiln from one end by its longitudinal movement. The outcrops or the masonry are broken out by the cut-out teeth provided on the cutting head with simultaneous rotation of the rotary tube.
  • the object of the invention is to provide a method for completely or partially breaking out the lugs and / or the masonry from horizontal Rahr cylinders rotating around their longitudinal axis, in particular from rotary kilns, which allows continuous, continuous or partial breaking out without cooling the pipe cylinder with controllable breakout depth , Excavation length and speed of advance enabled.
  • the device for carrying out the method should be of simple construction and should also be able to be used in the elongated and large-volume rotary kilns of the cement industry.
  • the lugs and / or the masonry are broken out of the tubular cylinder by impact, impact or tearing which are exerted by the teeth of the breakout roller on the inner surface of the tubular cylinder. Due to the rotation of the tubular cylinder, the break-out roller resting on its base area executes a rolling movement, the longitudinal movement generated by its inclination with respect to the longitudinal axis of the tubular cylinder causing the break-out roller to pass through the entire length of the tubular cylinder automatically, against the inclination of the tubular cylinder.
  • the throughput speed of the break-out roller is delayed, stopped or reversed in its direction by a cable pull.
  • a device which is particularly suitable for carrying out the method according to the invention is specified in patent claim 3.
  • the radially protruding stabilizing disc results in the inclined position of the break-out roller resting in the base region of the tubular cylinder, which causes the longitudinal movement of the break-out roller when the tubular cylinder rotates and unrolls.
  • the angular toothed disk with the breakout teeth causes an abrupt or impact-like engagement of the teeth in the extension or the masonry of the tubular cylinder when the breakout roller rolls.
  • the breakout roller is expediently conical, the toothed disk having several pairs of teeth of the same size.
  • the tooth tips of four identical break-out teeth and four rolling teeth each form a square for themselves, the two squares formed from the tooth tips being offset from one another in such a way that an uneven octagon is formed.
  • the majority of the wedge-shaped breakout teeth can be aligned with the cutting width at right angles to the longitudinal axis of the breakout roller. The sudden action of the cut-out teeth on the approaches or the masonry is intensified if these are arranged on the toothed disk in such a way that they strike the inner wall of the tubular cylinder perpendicularly.
  • a particularly expedient embodiment of the device according to the invention is characterized in that the size and the radial adjustment area of the stabilizing disk is adapted approximately to the diameter of the enveloping figure of the break-out roller and has radial adjustment elements arranged uniformly distributed on its circumference. These adjustment elements can have contact elements at their outer end.
  • the distance between the stabilizing disc and the toothed disc should advantageously be larger and not equal to the longitudinal dimension of a brick of the furnace lining.
  • the breakout roller can be compact, structured or hollow as well as variable in its mass, size, type and number of breakout tools, in the material and in the selected cross section.
  • the breakout roller has a conical or conical envelope figure during its rolling movement, which is the reason for its longitudinal movement against the inclination of the tubular cylinder.
  • This longitudinal movement of the break-out roller can be controlled by the cable pull connected to its rear end.
  • the process-related longitudinal inclination of the rotary kiln is also overcome.
  • the longitudinal movement can be slowed down, slowed down or reversed with the cable pull. This allows the breakout roller to travel the entire inner surface of the tubular cylinder using the furnace drive.
  • the cross-sectional shape of the roller influences the working effect and the movement behavior.
  • An advantageous angular roller cross section creates rhythmic impacts when turning, which significantly increases the force.
  • a roller with an angular cross-section can move out of the lower trough position in the tubular cylinder and thus continuously free itself from the material flow from the excavation.
  • the effect of the break-out roller is decisively enhanced when the tube cylinder is continuously rotated by the fact that the approach, which is shaken and loosened by the roller in the trough position, and also the masonry lose their ring vault structure under permanent stress and collapse due to their own weight when they reach the slope.
  • the stabilizing disc is arranged at the rear end, the size of which is adapted to the outer diameter of the preferably conical wrapping figure of the breakout roller.
  • the stabilizing disc stabilizes the movement arrest of the break-out roller with the appropriate setting in the direction of its narrower front end.
  • the stabilizing disc ensures that the breakout roller moves in the direction of its front end.
  • the design of the stabilizing disc can be compact or structured, and can be modified in terms of its mass, its position and material, as well as its size and cross-section.
  • the stabilizing disc gives the breakout roller a changed position which is essentially not influenced by the main rubble flow.
  • a break-out roller 1 consisting of a central guide rod 2 with attached toothed disks 4, which are equipped with interchangeable break-out teeth 3 and rolling teeth 3 ', is introduced into the rotary kiln.
  • the body of the breakout roller 1 has a pointed shape in the area of the guide rod 2.
  • the break-out roller 1 When the rotary kiln is running, the break-out roller 1 is moved along with it. performs a double movement. This is on the one hand a rolling rotary movement, in which the breakout teeth 3 of the toothed disks 4 work the neck and the masonry with rhythmic beats in the lower tub area and on the other hand a longitudinal movement resulting from the conical envelope figure, which is directed towards the front end of the breakout roller 1 and thereby the process-related overcomes the slight inclination of the rotary kiln.
  • the break-out roller 1 In order to be able to control and monitor the longitudinal movement of the break-out roller 1 in accordance with the progress of work and in the case of existing assembly stages, the latter is connected at its rear end via a cable 9 to a winch 8 which is located outside the open rotary kiln. With this winch 8, it is possible to delay and stop the longitudinal movement of the breakout roller 1.
  • the breakout process consists of two phases.
  • the approach and the masonry are shaken and loosened by the break-out roller 1 in the trough position and then destroyed under permanent load in its vaulted structure in such a way that in the second phase these areas collapse during repeated turning on the slope.
  • a stabilizing disc 5 is mounted at the rear end of the breakout roller 1 and shown in Fig. 4. It causes the breakout roller 1 in the rear part outside the bottom point 15 of the rotary kiln cross section 11.
  • the break-out roller 1 moves relatively independently or outside of the oncoming debris flow 14, reducing the resistance to locomotion is gert.
  • the stabilizing disc 5 in its arrangement according to FIG. 3 ensures the locomotion of the breakout roller 1 in the direction of its narrower front end even on bare steel jacket areas of the rotary kiln 10 with the appropriate setting.
  • the installation of a sufficient number of radial adjusting elements 6 including separate contact elements 7, which are arranged evenly distributed over the circumference, increases the diameter of the stabilizing disc 5 depending on the structural length of the adjusting elements 6 and, depending on their setting, influences the movement behavior and the working capacity of the breakout roller 1
  • the size adjustability of the stabilizing disc 5 With the size adjustability of the stabilizing disc 5, the depth of cut of the cut-out teeth 3 and their impact balance are simultaneously changed.
  • the movement behavior can be converted from a modern, rhythmic beating with a small stabilizing disc 5 into a calmer rolling with a large stabilizing disc 5. In this way, it is then also possible to minimize damage from the cut-out teeth 3 on bare steel jacket surfaces of the rotary kiln 10 or on intact masonry 12. This measure also creates the conditions for a separate outbreak of approach 13.
  • the radial adjusting elements 6 are set such that the break-out teeth 3 are lifted out according to FIG. 3 between the front end and the stabilizing disc 5.
  • the main load is thus due to the design of the break-out roller 1 on the stabilizing disc 5.
  • materials with good static and sliding friction values such as. B. gunmetal or hard rubber for the contact elements 7, the movement behavior of the breakout roller is stabilized at the process-related inclination of the rotary kiln and against the debris flow 14.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Crushing And Grinding (AREA)
  • Incineration Of Waste (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Cleaning In General (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Peptides Or Proteins (AREA)
  • Pyrrole Compounds (AREA)
  • Processing Of Solid Wastes (AREA)
  • Glass Compositions (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Drying Of Solid Materials (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Claims (14)

1. Procédé pour dégager et arracher complètement ou partiellement des dépôts et/ou la maçonnerie dans un tambour cylindrique tournant autour de son axe longitudinal légèrement incliné par rapport à l'horizontale, notamment un four tubulaire rotatif dans l'industrie du ciment, moyennant l'utilisation du mouvement de rotation du tambour cylindrique à l'aide d'un cylindre d'arrachement, qui est inséré dans .le tambour cylindrique, comporte des dents et applique des forces de frappe, de choc et de frottement aux dépôts ou à la maçonnerie, le cylindre d'arrachement, qui est allongé à l'intérieur du tambour cylindrique en rotation et tourne librement, étant situé dans une position oblique par rapport à l'axe longitudinal du tambour cylindrique de sorte que le cylindre d'arrachement exécute un déplacement longitudinal dans le sens opposé à la pente du tambour cylindrique.
2. Procédé selon la revendication 1, caractérisé en ce que le déplacement longitudinal du cylindre d'arrachement situé dans le tambour cylindrique est retardé, arrêté ou inversé au moyen d'un câble relié au cylindre-
3. Dispositif pour la mise en oeuvre du procédé selon la revendication 1 ou 2, comportant un cylindre d'arrachement (1), qui peut être inséré dans un tambour cylindrique rotatif (10), comporte des dents (3) et est relié par l'intermédiaire d'un dispositif de retenue à un poste de pilotage (8) disposé à l'extérieur du tambour cylindrique, caractérisé en ce que le cylindre d'arrachement (1), qui s'étend librement à l'intérieur du tambour cylindrique (10) et exécute un mouvement de roulement sous l'effet de la rotation du tambour, comporte, sur son extrémité, un disque de stabilisation (5), qui fait saillie radialement, ainsi que, de façon décalée par rapport à son centre de gravité au moins un disque denté anguleux (4) sur le pourtour duquel des dents (3, 3') possédant des formes différentes sont disposées dans des positions différentes.
4. Dispositif selon la revendication 3, caractérisé en ce que les dents (3, 3') sont disposées par couples sur le disque denté (4).
5. Dispositif selon la revendication 4, caractérisé en ce que les dents (3, 3'), disposées par couples, possèdent la même taille.
6. Dispositif selon l'une des revendications 3 à 5, caractérisé en ce que les disques dentés (4) possèdent une forme carrée et que les dents d'arrachement (3, 31 sont disposées par couples au niveau de leurs zones d'angle.
7. Dispositif selon la revendication 6, caractérisé en ce que les pointes de quatre dents identiques d'arrachement (3) et les pointes de quatre dents identiques de roulement (3') forment des carrés respectifs.
8. Dispositif selon la revendication 7, caractérisé en ce que les carrés formés à partir des pointes des dents sont décalés les uns par rapport aux autres de manière à former un octogone irrégulier.
9. Dispositif selon la revendication 8, caractérisé en ce que les dents d'arrachement en forme de coin (3) sont disposées dans leur majorité de telle sorte que leur largeur de coupe soit perpendiculaire à l'axe longitudinal du cylindre d'arrachement (1).
10. Dispositif selon la revendication 9, caractérisé en ce que les dents d'arrachement (3) d'un disque denté (4) sont dirigées perpendiculairement à la paroi intérieure du tambour cylindrique (10) lorsqu'elles sont en appui conjointement avec les dents de roulement (3').
11. Dispositif selon l'une des revendications 3 à 10, caractérisé en ce que le dispositif de retenue réalisé sous la forme d'un câble est relié à l'extrémité du cylindre d'arrachement, qui porte le disque de stabilisation (5), et que la taille ainsi que la plage radiale de réglage du disque de stabilisation (5) sont adaptées au diamètre du contour enveloppe du cylindre d'arrachement (1).
12. Dispositif selon la revendication 4 ou 11, caractérisé en ce que le disque de stabilisation (5) comporte des éléments mobiles radiaux (6), qui sont disposés en étant répartis uniformément sur le pourtour du disque.
13. Dispositif selon la revendication 12, caractérisé en ce que les éléments radiaux mobiles (6) présentent, dans leur position totalement ressortie, des éléments de contact (7).
14. Dispositif selon l'une des revendications 3 à 13, caractérisé en ce que la distance entre le disque de stabilisation (5) et le disque denté le plus grand (4) est différente des dimensions d'une pierre de la maçonnerie et est supérieure à ces dimensions dans la direction longitudinale du tambour cylindrique (10).
EP85111353A 1985-06-06 1985-09-09 Procédé et dispositif pour arracher les dépôts et les revêtements dans les tambours couchés, en particulier dans les fours à tambour rotatif Expired - Lifetime EP0205651B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85111353T ATE49803T1 (de) 1985-06-06 1985-09-09 Verfahren und vorrichtung zum ausbrechen des ansatzes und des mauerwerkes in liegenden rohrzylindern, insbesondere in drehrohroefen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD85277103A DD238102A1 (de) 1985-06-06 1985-06-06 Verfahren und vorrichtung zum ausbrechen von ansatz und mauerwerk in drehrohroefen
DD277103 1985-06-06

Publications (2)

Publication Number Publication Date
EP0205651A1 EP0205651A1 (fr) 1986-12-30
EP0205651B1 true EP0205651B1 (fr) 1990-01-24

Family

ID=5568404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111353A Expired - Lifetime EP0205651B1 (fr) 1985-06-06 1985-09-09 Procédé et dispositif pour arracher les dépôts et les revêtements dans les tambours couchés, en particulier dans les fours à tambour rotatif

Country Status (16)

Country Link
US (1) US4775315A (fr)
EP (1) EP0205651B1 (fr)
JP (1) JPS61282786A (fr)
CN (1) CN1011340B (fr)
AT (1) ATE49803T1 (fr)
BG (1) BG48460A3 (fr)
CS (1) CS619685A3 (fr)
DD (1) DD238102A1 (fr)
DE (1) DE3575601D1 (fr)
DK (1) DK390685A (fr)
ES (1) ES8704257A1 (fr)
FI (1) FI82983C (fr)
HU (1) HU201398B (fr)
RO (1) RO94291B (fr)
SU (1) SU1706403A3 (fr)
YU (1) YU44282B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29704044U1 (de) * 1997-03-06 1998-07-09 VEBA OEL Technologie und Automatisierung GmbH, 45879 Gelsenkirchen Walzkörper für eine Drehtrommel sowie einen Walzkörper aufweisende Drehtrommel

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DE3632670A1 (de) * 1986-09-26 1988-04-07 Boge Ag Hydraulisch daempfendes gummilager
DD271559A1 (de) * 1988-04-28 1989-09-06 Magdeburg Spezialbau Vorrichtung zum ausbrechen von kleinen teilbereichen des ansatzes und des mauerwerkes in drehrohroefen
US5015299A (en) * 1988-05-19 1991-05-14 Veb Spezialbaukombinat Magdeburg Method and apparatus for the removal of deposits from the inner surfaces of horizontal cylinders
CA2362028C (fr) 2000-11-13 2009-01-20 Veba Oel Technologie Und Automatisierung Gmbh Tambour rotatif a corps roulant
DE20019275U1 (de) * 2000-11-13 2002-03-28 VEBA OEL Technologie und Automatisierung GmbH, 45879 Gelsenkirchen Drehtrommel mit Wälzkörperanordnung
FI124021B (fi) * 2013-01-23 2014-02-14 Termorak Oy Menetelmä kerrostumien ja/tai vuorausmateriaalien poistamiseksi pyörivistä uuneista
CN105855530A (zh) * 2015-01-23 2016-08-17 鞍钢股份有限公司 一种钢包用刮渣、破渣装置及其使用方法
CN104930870A (zh) * 2015-06-30 2015-09-23 辽宁科技大学 一种高压气体推动弹丸清除回转窑出口结渣的装置
CN110773728A (zh) * 2019-11-05 2020-02-11 湖北华远装备制造股份有限公司 一种中间包残钢渣自动清理装置
CN113739567B (zh) * 2021-07-28 2023-01-03 西安交通大学 一种回转窑窑体状态评估方法及系统

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FR804688A (fr) * 1935-07-23 1936-10-29 Procédé et dispositifs pour le nettoyage d'un four rotatif
US3025548A (en) * 1958-11-07 1962-03-20 Mansfeld Hutten Kom Wilhelm Pi Furnace cleaning device
DE2303914C3 (de) * 1973-01-26 1978-03-09 Wirtgen, Reinhard, 5461 Windhagen Fräser für eine Straßendeckenfräsmaschine
US3848289A (en) * 1973-04-16 1974-11-19 Chemetron Corp Scraper blade
JPS5245427B2 (fr) * 1974-03-15 1977-11-16
US3996637A (en) * 1975-06-13 1976-12-14 Iri-E Kosan Corporation Apparatus for cleaning the inside of ingot molds or other hollow bodies having interiors of varying shapes and sizes
JPS52113371A (en) * 1976-03-18 1977-09-22 Kubota Ltd Removing apparatus of sticking substance adhered inner surface of rota ry kiln
SE7710372L (sv) * 1977-09-15 1979-03-16 Sala International Ab Forfarande och anordning for skrapning av ytor
IT1096437B (it) * 1978-06-01 1985-08-26 Breda Termomeccanica Spa Apparecchiatura per la lavorazione automatica dei giunti in cilindri di grosso spessore

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29704044U1 (de) * 1997-03-06 1998-07-09 VEBA OEL Technologie und Automatisierung GmbH, 45879 Gelsenkirchen Walzkörper für eine Drehtrommel sowie einen Walzkörper aufweisende Drehtrommel

Also Published As

Publication number Publication date
DE3575601D1 (de) 1990-03-01
ES8704257A1 (es) 1987-03-16
HUT43713A (en) 1987-11-30
CN1011340B (zh) 1991-01-23
RO94291B (ro) 1988-07-01
JPH0351994B2 (fr) 1991-08-08
EP0205651A1 (fr) 1986-12-30
FI860121A0 (fi) 1986-01-10
YU44282B (en) 1990-04-30
ATE49803T1 (de) 1990-02-15
DK390685A (da) 1986-12-07
JPS61282786A (ja) 1986-12-12
FI860121A (fi) 1986-12-07
CN85107490A (zh) 1986-12-03
US4775315A (en) 1988-10-04
ES555824A0 (es) 1987-03-16
BG48460A3 (en) 1991-02-15
SU1706403A3 (ru) 1992-01-15
DD238102A1 (de) 1986-08-06
CS619685A3 (en) 1992-01-15
RO94291A (fr) 1988-06-30
YU31086A (en) 1988-10-31
FI82983B (fi) 1991-01-31
FI82983C (fi) 1991-05-10
DK390685D0 (da) 1985-08-28
HU201398B (en) 1990-10-28

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