EP0127215A1 - Dispositif annulaire pour mettre en contact des substances solides et des gaz - Google Patents

Dispositif annulaire pour mettre en contact des substances solides et des gaz Download PDF

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Publication number
EP0127215A1
EP0127215A1 EP84200594A EP84200594A EP0127215A1 EP 0127215 A1 EP0127215 A1 EP 0127215A1 EP 84200594 A EP84200594 A EP 84200594A EP 84200594 A EP84200594 A EP 84200594A EP 0127215 A1 EP0127215 A1 EP 0127215A1
Authority
EP
European Patent Office
Prior art keywords
spokes
machine according
annular
wheels
ring
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.)
Granted
Application number
EP84200594A
Other languages
German (de)
English (en)
Other versions
EP0127215B1 (fr
Inventor
Dietrich Münch
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0127215A1 publication Critical patent/EP0127215A1/fr
Application granted granted Critical
Publication of EP0127215B1 publication Critical patent/EP0127215B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/06—Endless-strand sintering machines
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/26—Cooling of roasted, sintered, or agglomerated ores
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0273—Cooling with means to convey the charge on a rotary hearth

Definitions

  • the invention relates to a ring-shaped machine for contacting solids and gases, the gases being passed through a bed of solids and a temperature difference between gases and solids consisting of gas-permeable grids which are supported by a supporting structure rotating on wheels and which at the unloading point a tilt axis are arranged lowerable, unu attached to the support structure inner and outer wall.
  • solids are thermally treated with the passage of gases, either being heated or cooled.
  • a thermal treatment with heating takes place e.g. when sintering ores, burning pellets, calcining, coking coal, smoldering oil shale etc.
  • a thermal treatment with cooling takes place e.g. when cooling hot sinter, coke etc.
  • the solid bed consists of materials with adsorbent properties. In most cases, the material must also be cooled down again after heating. When heated, gases are passed through the material or oxygen-containing gases are passed through to burn fuel present in the material. Cooling gases are passed through during cooling.
  • Round machines are known in which the segment-shaped grids are supported by a supporting structure which consists of two ring carriers arranged concentrically to one another, which are connected to one another by spokes and which rotate with rollers on circular rails.
  • the segment-shaped grids are attached to the ring supports at one end with a pivot axis.
  • the other end of the grids is supported by rollers on rails which have a lowering at the unloading point, so that the grates are tilted and emptied (DE-PS 10 68 496).
  • This is perfect for the grates while eire stable T ragkonstuktion, but it is subject to strong temperature effects and considerable thermal expansions and tensions. The thermal expansions have a negative impact on the concentricity of the machine and the stresses can lead to breaks.
  • the invention has for its object to avoid the disadvantages of the known ring-shaped machines and in particular to avoid the stresses caused by temperature differences in the supporting structure, to achieve a perfect concentricity despite the thermal expansion and to allow a good seal of the machine.
  • this object is achieved by aassing the supporting structure from radially arranged spokes exists, which are connected to one another only by an annular structure, the annular structure is guided on the inside by horizontal rollers on a circular path, the supporting structure on the inside by wheels attached to the spokes or the annular structure and on the outside by wheels attached to the spokes on circular rails is supported and the gas-permeable grids are each arranged between two adjacent spokes that can be lowered about a tilting axis, the free space between adjacent grilles is covered by a cover, stanchions are arranged on the outside of the spokes and on the inside of the spokes or the annular construction, and on the stanchions aie side walls are attached.
  • the ring-shaped structure can consist of a circular ring or a polygonal steel structure.
  • the ring-shaped construction can be rigid or can be equipped with joints in the vertical and / or horizontal direction in order to even out the transmission of the loads.
  • the spokes can be made from round material, section steel or hollow sections. The spokes are clamped in the ring-shaped construction.
  • the wheels are preferably designed without wheel flanges so that the horizontal rollers do not adversely affect the centering.
  • the horizontal rollers are attached to the annular structure and run on a circular path, generally on a rail. It is also possible to use the side surfaces of the rails for the wheels as a horizontal guide for the rollers.
  • the gas-permeable grids can be trapezoidal or rectangular.
  • the covers are expediently arranged to be radially displaceable and provided with perforations.
  • the grids are expediently removed from the spokes by means of laterally attached pins in corresponding receiving devices.
  • the verb The extension line of the pins is the tilting axis of the gratings.
  • the term "stanchions" is understood to mean vertical supports which absorb the side pressure of the material bed.
  • the side walls can be circular or polygonal.
  • the direction of flow of the gases can be specified from bottom to top as well as from top to bottom.
  • stationary annular gas channels or several individual wind boxes can be arranged both below and above the grate.
  • the discharge station can be sealed against undesired gas entry or gas exit by means of a discharge lock for the material.
  • the machine can be driven in a known manner by non-positive or positive drives with stationary or rotating motors.
  • the terms "inside” and “outside” should always be understood from the center of the grate.
  • a preferred embodiment is that the tilting axis of the grids is arranged tangentially between adjacent spokes. This means that no forces are required to break or lift the material bed. With fried or sintered material bed, it is expedient to arrange the tilt axis on the inside in order to avoid constraints of the slipping material bed.
  • a preferred feature Lesteht the fact that the grids in the horizontal position at its the tilt axis opposite free side ragkonstruk- means of a latch on aer T tion be locked, the lock is opened in the discharge station, the free side of the grates lowered on a rail track and again is brought up and the lock is closed again before the task station. It is fundamentally possible to support the free end of the grids in a horizontal position outside the unloading station by a roller arranged under this end and running on a rail. However, due to unavoidable height differences and wear on the rails and rollers, there are constant vertical movements of the gratings and thus of the material bed. This is avoided by the lock.
  • the lock preferably consists of a double-supported rod with ends protruding on both sides.
  • the grate plate is supported on the cantilever arm arranged within the side walls.
  • a roller is arranged on the cantilever arm arranged outside the side walls.
  • the lowering and raising of the gratings on the railroad in the area of the unloading station can be done by means of rollers or runners attached to the gratings.
  • compensator-like beads are arranged at least in the outer wall.
  • the Beads can be arranged between all spokes or at certain intervals. Their number depends on the existing thermal expansion of the spokes and the walls. In the case of small dimensions, beads in the inner wall may not be necessary. In the event of greater thermal expansion, beads are arranged in the outer and inner walls between all spokes. These beads do not exert any or only slight tangential forces on the spokes.
  • a preferred feature is that the A b-cover from sharp roof-shaped plates is arranged displaceable in the radial direction between the stanchions and provided with perforations.
  • the tip of the plates is conveniently in the middle above the spokes. However, it can also lie outside the center.
  • the radial displaceability of the plates can be achieved by resting on the stanchions on which the plates rest loosely.
  • these can be equipped with coverings.
  • the perforations can have any shape, such as slit-shaped, round, etc.
  • a preferred embodiment is that vertical partitions are arranged between the spokes and the covers, which are arranged radially displaceably with at least one longitudinal edge, preferably with the longitudinal edge on the spoke. This prevents gases from escaping through the spokes in the locks of the unloading and loading station. The movability of the partition walls prevents the transfer of radial forces to the spokes.
  • a preferred embodiment is that the sides Immerse the walls below the spokes in stationary, ring-shaped water cups.
  • the side walls can dip into the water cups with their lower ends or extensions attached to them.
  • the surface of the water cups can be covered except for one slit.
  • the water cups are gas-tight connected to the wind boxes or gas channels under the grates. This ensures an absolute and wear-free seal.
  • a preferred embodiment consists in that the side walls are immersed in stationary water cups above the spokes, a stationary gas hood is arranged above the side walls and has stationary seals outside the water cups. This achieves an absolute and wear-free seal with the gas hood over the grate.
  • a preferred embodiment is that water cups are attached to the stanchions, the side walls above the spokes are immersed in the water cups, a stationary gas hood is arranged above the side walls, and the gas hood with seals is also immersed in the water cups. In addition to an absolute and wear-free seal, this eliminates the need for an additional stationary seal on the gas hood and there are no secondary gas spaces.
  • a preferred embodiment is that the spokes are hollow and are equipped with cooling. Cooling can be done by blowing in air, with fans rotating with the machine.
  • a preferred embodiment consists of feeding cab water from one of the water cups attached to the stanchions into the spokes and from there into the other water cup. This allows a very effective cooling of the spokes in a simple manner.
  • the wheels are designed as steering wheels.
  • the term "steering wheels” is to be understood as meaning wheels which have a vertical pivot axis. This pivot axis is arranged at a distance from the axis of rotation of the wheels. Through this distance, the wheels adjust tangentially, approx this wheel suspension fulfills the well-known mathematical equation of the drag curve. With this device, the required tangential position of the wheels is achieved without difficult alignment work.
  • the ring-shaped construction is equipped with horizontal joints and / or vertical joints at intervals. This configuration is used in particular in the case of very large machines, since it balances the loads acting on the rollers and wheels in the horizontal and / or vertical direction.
  • the support structure of the ring-shaped machine consists of the radially arranged spokes 1, which are clamped inside the ring-shaped structure 2 and extend over the ring width without further connection.
  • the support structure is rotatably supported on the inside by the wheels 5 on the circular rail 6 and on the outside by the wheels 5a on the rail 6a.
  • the support structure is guided centrally by the horizontal rollers 3 on a horizontally arranged circular rail 4.
  • a gas-permeable grate 7 is arranged between adjacent spokes 1 about a tilt axis 8 arranged tangentially on the outside.
  • the free space 9 between two adjacent grids 7 above the spokes 1 is covered by roof-shaped covers 10n.
  • the inner stanchions 11 are fixed on the annular structure 2 and the outer stanchions 11a on the spokes 1.
  • the inner side wall 12 is attached to the stanchions 11 and the outer side wall 12a to the stanchions 11 a.
  • the horizontal position of the grids 7 outside the unloading station 14 is effected by the lock 13, which on the ring-shaped construction tion 2 is attached.
  • the lock 13 is relieved by the auxiliary roller 26 running onto the rail 15 and opened by a stationary guide 27.
  • the auxiliary roller 26 runs on the lowered rail 15, the grate 7 is inclined so far that the slip angle of the treated material is surely exceeded.
  • Brackets 28 are fastened to the side walls 12, 12a, on which the roof-shaped covers 10 lie freely displaceable in the radial direction.
  • the covers 10 are provided with slots 18 for the passage of the gaseous medium.
  • a vertical dividing wall 19 is attached to the ridge line of the roof-shaped cover 10, and its lower edge is arranged so that it can move in a seal 29 on the spoke.
  • the spoke 1 is hollow.
  • the water cup 24 is connected to the water cup 24a via line 32, spoke 1 and line 32a. By adding water to the water cup 24 and withdrawing water from the water cup 24a, water is passed through the spoke 1 and the latter is cooled in the process.
  • the wheels 5, 5a are designed as steering wheels.
  • the wheels 5, 5a are fixed with their axes of rotation 33 in the housing 34.
  • the housing 34 is fastened to the steering bearing 35 and can be pivoted about its central axis.
  • the center axes of the steering bearings 35 and the axes of rotation 33 are arranged at a distance from one another, as a result of which the steering effect is achieved.
  • FIG. 7 indicates the direction of movement of the machine.
  • the gas channel 30 merges into a cover plate 36.
  • Cross webs 37 are attached to the spokes 1 below and produce a seal with the cover plates 36.
  • the annular construction 2 between the spokes 1 is equipped with horizontally acting joints 38 and vertically acting joints 39.
  • the loads acting on the horizontal rollers 3 are equalized by the joint 38 and the loads acting on the wheels 5 by the joint 39.
  • the advantages of the invention are that no stresses caused by temperature differences occur in the supporting structure, since the parts of the supporting structure can expand from one another without hindrance. Despite this expansion, perfect concentricity is achieved because the internal guide parts are not thermally stressed and because the spokes can expand in the radial direction without hindrance. A perfect seal is possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Furnace Details (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP84200594A 1983-05-21 1984-04-28 Dispositif annulaire pour mettre en contact des substances solides et des gaz Expired EP0127215B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3318679 1983-05-21
DE19833318679 DE3318679A1 (de) 1983-05-21 1983-05-21 Ringfoermige maschine zum kontaktieren von feststoffen und gasen

Publications (2)

Publication Number Publication Date
EP0127215A1 true EP0127215A1 (fr) 1984-12-05
EP0127215B1 EP0127215B1 (fr) 1986-11-05

Family

ID=6199659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84200594A Expired EP0127215B1 (fr) 1983-05-21 1984-04-28 Dispositif annulaire pour mettre en contact des substances solides et des gaz

Country Status (4)

Country Link
EP (1) EP0127215B1 (fr)
JP (1) JPS59221585A (fr)
DE (2) DE3318679A1 (fr)
IN (1) IN159050B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009030178A1 (fr) * 2007-09-03 2009-03-12 Zhongye Changtian International Engineering Co., Ltd. Poutre de support conçue pour servir de support à des chariots de refroidisseur annulaire
WO2010091630A1 (fr) * 2009-02-10 2010-08-19 中冶长天国际工程有限责任公司 Bras support de chariot pour refroidisseur annulaire
CN101825398A (zh) * 2010-04-29 2010-09-08 中冶长天国际工程有限责任公司 环冷机
CN102494541A (zh) * 2011-12-27 2012-06-13 中冶长天国际工程有限责任公司 环冷机及其支承梁
CN102997690A (zh) * 2011-09-19 2013-03-27 山东省冶金设计院股份有限公司 环冷机的密封装置
CN103471399A (zh) * 2013-09-26 2013-12-25 中冶长天国际工程有限责任公司 环冷机及其台车支承梁
CN104910924A (zh) * 2014-03-14 2015-09-16 袁承世 一种环窑式连续型干馏釜炭化炉
CN105674754A (zh) * 2016-01-27 2016-06-15 中冶华天工程技术有限公司 烧结环冷机卸料曲轨设计方法
KR20170138524A (ko) * 2015-04-17 2017-12-15 프리메탈스 테크놀로지스 오스트리아 게엠베하 고온 벌크 물품들을 냉각시키기 위한 냉각기를 위해 분진 방출들을 감소시키기 위한 경계부

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101825397B (zh) * 2010-04-29 2012-05-09 中冶长天国际工程有限责任公司 一种用于环冷机台车支承梁
CN101839650B (zh) * 2010-05-18 2011-12-28 中冶长天国际工程有限责任公司 环冷机及其单元静密封装置
AT510326B1 (de) 2010-09-08 2012-08-15 Siemens Vai Metals Tech Gmbh Maschine zur thermischen behandlung von feststoffen
CN102486351B (zh) * 2010-12-06 2014-02-05 中冶长天国际工程有限责任公司 环冷机及其单元静密封装置
CN102494540B (zh) * 2011-12-02 2013-08-07 中冶长天国际工程有限责任公司 环冷机及其单元静密封装置
CN114151787B (zh) * 2021-12-17 2024-05-31 无锡华光环保能源集团股份有限公司 一种循环流化床锅炉防堵排渣结构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068469B (fr) * 1959-11-05
DE1197482B (de) * 1962-01-13 1965-07-29 Herbert Knaust Dr Ing Rundfoerderer fuer grosse Foerdermengen, insbesondere heisses Schuettgut
DE1608018A1 (de) * 1968-02-02 1970-08-20 Metallgesellschaft Ag Brennmaschine
DE1807680A1 (de) * 1968-11-08 1970-10-08 Metallgesellschaft Ag Runde Brennmaschine
DE1944669A1 (de) * 1969-09-03 1971-03-25 Metallgesellschaft Ag Runder Kuehler fuer heisses Schuettgut
DE1751760A1 (de) * 1968-07-24 1971-08-05 Knaust Herbert Dr Ing Drehbarer Druckkuehler fuer heisses Schuettgut
DE2613462B1 (de) * 1976-03-30 1977-07-14 Metallgesellschaft Ag Runder kuehler fuer heisses schuettgut
DE3046605A1 (de) * 1979-12-17 1981-09-17 Voest-Alpine AG, 4010 Linz Vorrichtung zur thermischen behandlung von feststoffen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068469B (fr) * 1959-11-05
DE1197482B (de) * 1962-01-13 1965-07-29 Herbert Knaust Dr Ing Rundfoerderer fuer grosse Foerdermengen, insbesondere heisses Schuettgut
DE1608018A1 (de) * 1968-02-02 1970-08-20 Metallgesellschaft Ag Brennmaschine
DE1751760A1 (de) * 1968-07-24 1971-08-05 Knaust Herbert Dr Ing Drehbarer Druckkuehler fuer heisses Schuettgut
DE1807680A1 (de) * 1968-11-08 1970-10-08 Metallgesellschaft Ag Runde Brennmaschine
DE1944669A1 (de) * 1969-09-03 1971-03-25 Metallgesellschaft Ag Runder Kuehler fuer heisses Schuettgut
DE2613462B1 (de) * 1976-03-30 1977-07-14 Metallgesellschaft Ag Runder kuehler fuer heisses schuettgut
DE3046605A1 (de) * 1979-12-17 1981-09-17 Voest-Alpine AG, 4010 Linz Vorrichtung zur thermischen behandlung von feststoffen

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009030178A1 (fr) * 2007-09-03 2009-03-12 Zhongye Changtian International Engineering Co., Ltd. Poutre de support conçue pour servir de support à des chariots de refroidisseur annulaire
WO2010091630A1 (fr) * 2009-02-10 2010-08-19 中冶长天国际工程有限责任公司 Bras support de chariot pour refroidisseur annulaire
CN101825398A (zh) * 2010-04-29 2010-09-08 中冶长天国际工程有限责任公司 环冷机
CN101825398B (zh) * 2010-04-29 2012-05-09 中冶长天国际工程有限责任公司 环冷机
CN102997690B (zh) * 2011-09-19 2016-04-27 山东省冶金设计院股份有限公司 环冷机的密封装置
CN102997690A (zh) * 2011-09-19 2013-03-27 山东省冶金设计院股份有限公司 环冷机的密封装置
CN102494541A (zh) * 2011-12-27 2012-06-13 中冶长天国际工程有限责任公司 环冷机及其支承梁
CN103471399A (zh) * 2013-09-26 2013-12-25 中冶长天国际工程有限责任公司 环冷机及其台车支承梁
CN103471399B (zh) * 2013-09-26 2015-03-11 中冶长天国际工程有限责任公司 环冷机及其台车支承梁
CN104910924A (zh) * 2014-03-14 2015-09-16 袁承世 一种环窑式连续型干馏釜炭化炉
CN104910924B (zh) * 2014-03-14 2018-04-10 袁承世 一种环窑式连续型干馏釜炭化炉
KR20170138524A (ko) * 2015-04-17 2017-12-15 프리메탈스 테크놀로지스 오스트리아 게엠베하 고온 벌크 물품들을 냉각시키기 위한 냉각기를 위해 분진 방출들을 감소시키기 위한 경계부
RU2703760C2 (ru) * 2015-04-17 2019-10-22 Прайметалз Текнолоджиз Аустриа ГмбХ Уменьшающее пылевыделение ограждение охлаждающего устройства для охлаждения горячего сыпучего материала
CN105674754A (zh) * 2016-01-27 2016-06-15 中冶华天工程技术有限公司 烧结环冷机卸料曲轨设计方法
CN105674754B (zh) * 2016-01-27 2019-01-25 中冶华天工程技术有限公司 烧结环冷机卸料曲轨设计方法

Also Published As

Publication number Publication date
DE3461225D1 (en) 1986-12-11
DE3318679A1 (de) 1984-11-22
JPS59221585A (ja) 1984-12-13
EP0127215B1 (fr) 1986-11-05
IN159050B (fr) 1987-03-14

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