EP1687577A1 - Dispositif de chargement, notamment dispositif de prechauffage des charges - Google Patents

Dispositif de chargement, notamment dispositif de prechauffage des charges

Info

Publication number
EP1687577A1
EP1687577A1 EP04803263A EP04803263A EP1687577A1 EP 1687577 A1 EP1687577 A1 EP 1687577A1 EP 04803263 A EP04803263 A EP 04803263A EP 04803263 A EP04803263 A EP 04803263A EP 1687577 A1 EP1687577 A1 EP 1687577A1
Authority
EP
European Patent Office
Prior art keywords
charging
shaft
charging device
opening
roller
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
EP04803263A
Other languages
German (de)
English (en)
Other versions
EP1687577B1 (fr
Inventor
Gerhard Fuchs
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.)
Fuchs Technology AG
Original Assignee
Fuchs Technology 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 Fuchs Technology AG filed Critical Fuchs Technology AG
Priority to PL04803263T priority Critical patent/PL1687577T3/pl
Priority to SI200431031T priority patent/SI1687577T1/sl
Publication of EP1687577A1 publication Critical patent/EP1687577A1/fr
Application granted granted Critical
Publication of EP1687577B1 publication Critical patent/EP1687577B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/06—Charging or discharging machines on travelling carriages
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/18—Arrangements of devices for charging
    • 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
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • F27D13/002—Preheating scrap
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/04—Ram or pusher apparatus
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/18—Arrangements of devices for charging
    • F27B3/183—Charging of arc furnaces vertically through the roof, e.g. in three points
    • F27B3/186—Charging in a vertical chamber adjacent to the melting chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S266/00—Metallurgical apparatus
    • Y10S266/901—Scrap metal preheating or melting

Definitions

  • Charging device in particular Chargiergutvor Anlagenr
  • the invention relates to a charging device for charging material to be charged into a melting vessel, comprising a shaft with shaft walls held in a frame construction, a lower shaft bottom, an upper inlet opening, a discharge opening for charging material in a side wall in the lower region of the shaft, a slide, with an upper side, a lower side, an end face extending transversely to the direction of displacement, and two side surfaces running parallel to the direction of displacement, resting with its underside on the upper side of said shaft bottom between a retracted, first position releasing the shaft bottom and an exit opening in the direction of said shaft bottom advanced, second position, by means of a first actuating device for batchwise transport of charging material located in the shaft to and from said outlet opening is displaceable.
  • the invention relates to a Chargiergutvor lockerr trained charging device of the type mentioned, in which the material to be charged by preheating by flowing hot gases, especially hot exhaust gases from the furnace to be charged, is preheated.
  • the object of the invention is to design a charging device of the abovementioned type such that charging material of the most varied sizes, such as heavy and light scrap, can be transported to and from the outlet opening by means of the slide while avoiding the abovementioned problems, that is to say without disturbances and blockages. In particular, this should also be ensured in the case of a charging device designed as a charging device
  • the side surfaces of the essentially parallelepiped slider are convergent from the upper side to the lower side of the slider, and the actuating device for this slider is pivotably mounted in a frame construction about a horizontal axis.
  • the upper boundary of the discharge opening for charging material is formed by a horizontal, rotatably mounted roller.
  • the roller is preferably mounted pivotably about a horizontal axis and can be pressed down by means of an actuating device. This allows the roller against its own weight or a compressive force to swerve upward and thereby increase the Austrittsöffhung in height.
  • By driving elements on the peripheral surface of the roller ensures that the exiting charging material entrains the peripheral surface of the roller and rolls without relative movement to this on the roller surface. Isfder limited by the shaft walls of the interior of the shaft , the Chargiergutvor lockerrs, in particular in the lower region, formed in horizontal section rectangular. Extending over the length of the longer side. Outlet opening can then be discharged with a roughly parallelepiped, which extends laterally to the walls by means of a stroke a relatively large amount of the Chargiergutvor lockerr. ,
  • a lateral connection to a melting vessel may be provided at the outlet opening a surrounding approach with a flange or in the form of a sleeve which allows a gas-tight connection with the charging opening of the melting vessel, which is preferably provided laterally in the upper vessel of the melting vessel.
  • the charging device is horizontally movable and has for this purpose either a chassis or a roller bearing.
  • a socket connection is particularly advantageous, because in this way a fast connection to the vessel and separation from the vessel is possible, which appears to be advantageous in particular in a tiltable vessel of an arc furnace as a melting vessel.
  • the melting furnace preferably has an oval vessel, the charging opening to be connected to the outlet opening of the charging device being provided in a longitudinal side of the oval.
  • the mechanically stressed parts of the shaft and / or slide are preferably formed of juxtaposed, connected to a construction unit steel billet sections.
  • a tight connection of the juxtaposed steel billet sections is preferably achieved by interposed steel rod sections which lie against the thermally and mechanically stressed side of the construction unit and which allow a certain elasticity across the steel billets and good cooling capability by spray cooling from the opposite side.
  • the steel billet sections should be arranged vertically in the wall regions of the shaft.
  • Fig. 1 is a perspective view of an inventive, as Chargiergutvormaschiner trained charging device
  • FIG. 2 shows a schematic diagram, partly in longitudinal section, of the charging device connected to the upper vessel of an arc furnace
  • 7 and 8 are a front view and a plan view of a construction unit formed by steel billet sections.
  • schachtfö ⁇ nige Chargiergutvor Suiter 1 for preheating in a melting vessel to be charged Chargiergut contains a shaft 2 with 3 held in a frame structure shaft walls 4, 5, 6 and 7. Further, a lower shaft bottom 8 and an upper inlet opening 9 for Loading material, which can be closed by a cover 10 (see Fig. 2).
  • an outlet opening 11 for charging material is provided in the left side wall 4 in the illustration according to FIG. 2, which at the same time forms a gas inlet for a heating gas for heating charge material located in the shaft.
  • a gas outlet 12 is present.
  • the Chargiergutvor lockerr further includes a slider 13, which is shown in FIGS. 3 to 5 partially and in various, enlarged views.
  • the slider 13 has an upper side 14, a lower side 15, an end face 16 extending transversely to the direction of displacement, and two side surfaces 17 and 18 extending parallel to the direction of displacement.
  • the slide 13 is resting with its underside 15 on the upper side 19 of the shaft bottom 8, between a bottom of the shaft releasing within the shaft walls, retracted, first position (not shown) and one in the direction of the outlet opening eleventh advanced, second position (shown in FIGS. 1 and 2) displaceable. So that the slider 13 is also guided in the retracted first position, the shaft bottom 8 is extended beyond the rear wall of the shaft 6 with respect to the outlet opening 11.
  • the forward and backward sliding of the slide 13 is effected by a first actuating device 20, which in the case shown in the form of two linear actuators, each of a lifting cylinder 21 and a lifting rod 22, is formed.
  • the first actuator 20 is pivotally mounted in the frame structure 3 about a horizontal axis.
  • pivot bearings 23 are provided for each of the lifting cylinders 21 on the frame 3.
  • the lifting rods 22 are also pivotally connected via horizontal pin 24 with the slider 13. This gives the slider in the forward and backward movement the necessary mobility to avoid jamming.
  • the upper side 19 of the shaft bottom 8 is preferably designed sloping down to the outlet opening 11 of the shaft 2.
  • An inclination angle of 15 degrees to the horizontal has proven to be advantageous.
  • the angle of inclination should not be greater than 45 degrees, because otherwise the required blocking of the charging material discharge is no longer present and charging material leaves the outlet opening 11 in an uncontrolled manner.
  • the Kohvergenzwinkel ⁇ (see Fig. 5) of the converging side surfaces 17, 18 of the slider 13 with respect to the horizontal is preferably between 45 degrees and 75 degrees. Be particularly advantageous about 60 degrees have been found.
  • the upper boundary is formed by a horizontal, rotatably mounted roller 26.
  • the roller is pivotally mounted about a fixed horizontal axis 27 (see FIG. 6) in the frame structure 3 and pivotable downwardly by means of a second actuator 28.
  • Fig. 6 shows the left pivot lever 29 of Fig. 1 in a view from the left.
  • the second actuator 28 is in the present case, as well as the first actuator 21, in the form of two linear drives, with which the roller 26 by means of the roller associated with the pivot lever 29 about the axes 27 which are aligned, is pivotable.
  • the roller 26 has distributed on its peripheral surface driver elements 30, which are formed in the present case as parallel to the axial direction of the roller driving ribs.
  • the driver hooked on the transported Good and it is the freely rotating roller 26 taken.
  • the roller could also be designed drivable in order to convey the material positively in the region of the upper edge of the outlet opening 11. In this case, the rotational movement of the roller 26 should be synchronized with the pushing movement of the slider 13.
  • the charging device designed as charging material preheater is preferably intended for preheating charging goods to be charged into a melting vessel, in particular into the vessel of an electric arc furnace.
  • a melting vessel in particular into the vessel of an electric arc furnace.
  • the connection between Chargiergutvorebenr and the melting vessel can be solved quickly so that when tilting the vessel of the charging material preheater must not be tipped.
  • the hot exhaust gas of the electric arc furnace without significant losses through the outlet opening 11 for the charging material, which serves as a gas inlet, introduced into the shaft 2 and can be derived by flowing through the heated cargo through the upper gas outlet 12 again.
  • FIG. 2 such a connection between the Chargiergutvor lockerr 1 and a tiltable vessel 31 of an electric arc furnace is shown.
  • the upper, usually made of water-cooled wall elements existing part of the vessel 31 is provided with a rectangular inlet opening 32 for charging.
  • the vessel 31 is oval in plan view, so that it is easier to provide here a rectangular inlet opening 32.
  • a surrounding approach 33 is provided for connection to serving as a charging opening strictlysöff 32 of the melting vessel.
  • the approach is in the form of a sleeve whose outer contour is adapted for insertion into the charging opening 32 at its inner contour.
  • the Chargiergutvor lockerr 1 is designed to be displaceable.
  • the Chargiergutvor Heinrichvormaschiner invention is suitable for high mechanical stresses. To the robustness and reliability over known
  • Such a construction unit is shown in Figs. 7 and 8 in a front view and a plan view.
  • the steel billet sections 41 are welded together at the edges 42 which lie on the mechanically stressed side of the construction unit 40 by interposed steel rod sections 43, these steel rod sections preferably being formed from round steel.
  • the inner sides of the shaft walls 4, 5, 6 and 7, the upper side of the shaft bottom 19 in the region of the shaft or the end face 16 of the slider and partly the adjoining upper side of the slider 13, are mechanically stressed in the described charge material preheater.
  • Preferred cross-sectional dimensions of statues billets offered on the steel market for making the steel billet sections are 100mm x 100mm.
  • the diameter of the round bar sections 43 is preferably one-fifth of the cross-sectional side dimensions of the steel billets, in the present case about 20 mm.
  • a required cooling of the shaft walls is advantageously carried out in this embodiment by a spray cooling, i. via spray nozzles which are mounted in the frame construction 3. Since the cooling takes place on the side of the construction unit opposite the steel rod sections, the billet liners 41 can also be cooled via their interspaces between adjacent billet sections formed by the interposed steel rod sections 43.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP04803263A 2003-11-27 2004-11-25 Dispositif de chargement, notamment dispositif de prechauffage des charges Not-in-force EP1687577B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL04803263T PL1687577T3 (pl) 2003-11-27 2004-11-25 Urządzenie załadowcze, a zwłaszcza wstępny podgrzewacz załadowanego surowca
SI200431031T SI1687577T1 (sl) 2003-11-27 2004-11-25 Ĺ arĺ˝irna naprava, posebno predgrevalnik za ĺ arĺ˝irno zalogo

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10355549A DE10355549A1 (de) 2003-11-27 2003-11-27 Chargiergutvorwärmer
PCT/EP2004/013355 WO2005052481A1 (fr) 2003-11-27 2004-11-25 Dispositif de chargement, notamment dispositif de prechauffage des charges

Publications (2)

Publication Number Publication Date
EP1687577A1 true EP1687577A1 (fr) 2006-08-09
EP1687577B1 EP1687577B1 (fr) 2009-01-07

Family

ID=34609359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04803263A Not-in-force EP1687577B1 (fr) 2003-11-27 2004-11-25 Dispositif de chargement, notamment dispositif de prechauffage des charges

Country Status (17)

Country Link
US (1) US7497985B2 (fr)
EP (1) EP1687577B1 (fr)
JP (1) JP4343956B2 (fr)
KR (1) KR100777094B1 (fr)
CN (2) CN101514872B (fr)
AT (1) ATE420330T1 (fr)
AU (1) AU2004293557B2 (fr)
BR (1) BRPI0416996A (fr)
CA (1) CA2546473C (fr)
DE (2) DE10355549A1 (fr)
EA (1) EA008086B1 (fr)
ES (1) ES2318357T3 (fr)
PL (1) PL1687577T3 (fr)
PT (1) PT1687577E (fr)
SI (1) SI1687577T1 (fr)
UA (1) UA80926C2 (fr)
WO (1) WO2005052481A1 (fr)

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KR20160073559A (ko) 2014-12-17 2016-06-27 주식회사 포스코 스크랩 예열장치 및 이를 이용한 스크랩 예열방법
CN104949497A (zh) * 2015-07-13 2015-09-30 贵州正业工程技术投资有限公司 一种矿热炉炉顶加料热风节能烘干装置
CN105202907B (zh) 2015-10-30 2017-09-29 中冶赛迪工程技术股份有限公司 废钢预热型电弧炉及改善侧壁加料电弧炉加热冷区的方法
CN110388830B (zh) * 2019-08-01 2024-02-06 中冶京诚工程技术有限公司 废钢预热装置、电弧熔化设备及预热方法
CN112941266B (zh) * 2019-11-26 2023-09-08 中冶京诚工程技术有限公司 炼钢加料装置、推钢机构及炼钢加料方法
CN110940195B (zh) * 2019-12-27 2024-06-11 中冶焦耐(大连)工程技术有限公司 一种石灰石回转窑预热器的上部料层高度调节装置及方法
CN113774184B (zh) * 2021-08-10 2023-06-30 上海展形再生资源有限公司 杂物预处理的开放式废钢加热装置及其方法
CN114754593B (zh) * 2022-04-13 2023-10-20 河北科技大学 一种水泥窑预热器清堵机械装置
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Publication number Publication date
DE10355549A1 (de) 2005-06-23
BRPI0416996A (pt) 2007-02-06
ES2318357T3 (es) 2009-05-01
JP2007513310A (ja) 2007-05-24
ATE420330T1 (de) 2009-01-15
AU2004293557A1 (en) 2005-06-09
DE502004008838D1 (de) 2009-02-26
SI1687577T1 (sl) 2009-04-30
CA2546473C (fr) 2010-05-04
EA008086B1 (ru) 2007-02-27
CN100561093C (zh) 2009-11-18
PT1687577E (pt) 2009-02-04
WO2005052481A1 (fr) 2005-06-09
US7497985B2 (en) 2009-03-03
CA2546473A1 (fr) 2005-06-09
JP4343956B2 (ja) 2009-10-14
UA80926C2 (en) 2007-11-12
AU2004293557B2 (en) 2007-11-29
KR20060096159A (ko) 2006-09-07
US20070013112A1 (en) 2007-01-18
CN101514872B (zh) 2012-05-30
CN101514872A (zh) 2009-08-26
EA200600923A1 (ru) 2006-12-29
PL1687577T3 (pl) 2009-06-30
EP1687577B1 (fr) 2009-01-07
KR100777094B1 (ko) 2007-11-19
CN1926397A (zh) 2007-03-07

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