WO2014012655A2 - Système de préchauffage et d'alimentation de ferrailles - Google Patents

Système de préchauffage et d'alimentation de ferrailles Download PDF

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Publication number
WO2014012655A2
WO2014012655A2 PCT/EP2013/002100 EP2013002100W WO2014012655A2 WO 2014012655 A2 WO2014012655 A2 WO 2014012655A2 EP 2013002100 W EP2013002100 W EP 2013002100W WO 2014012655 A2 WO2014012655 A2 WO 2014012655A2
Authority
WO
WIPO (PCT)
Prior art keywords
shaped container
shaft
scrap
push frame
feeding system
Prior art date
Application number
PCT/EP2013/002100
Other languages
German (de)
English (en)
Other versions
WO2014012655A3 (fr
Inventor
Knut Rummler
Original Assignee
Inteco Special Melting Technologies 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 Inteco Special Melting Technologies Gmbh filed Critical Inteco Special Melting Technologies Gmbh
Priority to KR20157002924A priority Critical patent/KR20150031461A/ko
Priority to CN201380037035.6A priority patent/CN104428617A/zh
Publication of WO2014012655A2 publication Critical patent/WO2014012655A2/fr
Publication of WO2014012655A3 publication Critical patent/WO2014012655A3/fr

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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
    • 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
    • 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
    • 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
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • F27D3/003—Charging laterally, e.g. with a charging box

Definitions

  • the invention relates to a scrap heating and feeding system of a furnace for steelmaking, with at least one openable closure and with a delivery opening and
  • At least one suction opening comprising a shaft-shaped container, wherein the closure closes a bottom Vorauerringfach and wherein a vertical in
  • the present invention is based on the problem of further reducing the energy required for the melting process and further shortening the time interval between the taps.
  • the oriented in the direction of the shaft-shaped container front wall of the push frame comprises a downwards limiting bumper.
  • the length of the bumper is transverse to the direction of travel of the push frame
  • the distance of the bumper from the ground in the vertical direction between 5% and 25% of the total height of the push frame.
  • FIG. 1 Furnace system with scrap preheating and feeding system
  • FIG. 2 side view of FIG. 1;
  • FIG. 3 top view of FIG. 1;
  • Figure 4 View of the push frame in Vorchargierfach
  • FIG. 5 Isometric view of the push frame
  • FIG. 6 longitudinal section of the push frame
  • Figure 7 Top view of a push frame with wedge-shaped
  • FIG. 8 cross section of FIG. 7;
  • Figure 9 Top view of a push frame with both sides
  • FIG. 10 Doppe1 push frame
  • FIG. 11 section of a furnace system from FIGS. 1-3
  • FIG. 12 Furnace with scrap preheating and feeding system
  • FIG. 13 detail of the guide system from FIG. 12;
  • FIG. 14 Detail of the guide system from FIG. 4.
  • Figures 1 to 3 show a furnace system (6) with a
  • the feed is steel scrap (4), which is not shown here
  • Scrap preheating and feeding system (20) is promoted.
  • the feedstock (4) can also be conveyed by means of a continuous conveying device, for example by means of a conveyor belt, interrupted or uninterrupted into the scrap heating and feeding system (20).
  • the scrap (4) is prepared for use.
  • the scrap (4) is initially conveyed from the precharging compartment (31) into a shaft-shaped container (101).
  • exhaust gases from the combustion process of the furnace (10) are passed through the scrap (4).
  • the thermal energy transferred from the exhaust gas to the scrap (4) with cooling increases the energy content of the scrap (4) and warms it up.
  • the preheated scrap (4) is conveyed in one stroke completely or in portions into the furnace vessel (10).
  • the feedstock (4) is then liquefied, for example by means of electrical energy.
  • the density of the introduced material increases while its volume decreases.
  • the furnace (10) can be an induction furnace, an electric arc furnace, etc.
  • the homogeneous, liquid steel (5), cf. 11 generally emptied into a pan (8) while tilting the oven vessel (11).
  • the oven (10) can be prepared after tapping for the next melt.
  • the liquid steel (5) is conveyed either directly or, for example, after the addition of further alloying elements for further processing, for example in a continuous casting plant.
  • the scrap heating and feeding system (20) shown in Figures 1 to 3 comprises the shaft-shaped container (101) and two Vorchargierf kauer (31, 231). The entire
  • Scrap preheating and feeding system (20) is for example mounted on rollers (161). For maintenance purposes, for example, it can be moved away from the furnace (10).
  • a rigid or liftable and / or pivotable arrangement of the scrap preheating and feeding system (20) is also conceivable.
  • the largely vertically oriented shaft-shaped container (101) has a plane parallel to the furnace platform (7) has a rectangular outer and inner cross section. Here are the longitudinal walls (103, 104) parallel to an imaginary first vertical furnace center plane (13). The transversely arranged end walls (102, 105) penetrate this first vertical furnace center plane (13). All wall surfaces (102 - 105) can be made water-cooled.
  • the shaft-shaped container (101) has an underlying discharge opening (106) and an overhead suction opening (131).
  • the e.g. rectangular discharge opening (106) in the lower region of the furnace (10) facing end wall (105) arranged.
  • a delivery tunnel (171) is connected, which connects the shaft-shaped container (101) with the furnace interior (15) separable during operation of the furnace (10).
  • the furnace system (6) can also be designed without the delivery tunnel (171).
  • a pusher device (151) is arranged in the furnace wall (10) facing away from the end wall (102) .
  • the preheated scrap (4) from the shaft-shaped container (101) is conveyed through the conveying tunnel (171) into the furnace vessel (11) by means of this one or two-stage pusher device (151).
  • the discharge opening (106) can also be arranged in a side wall (103, 104) or at the bottom (107) of the shaft-shaped container (101).
  • at least the shaft-shaped container (101) is designed liftable.
  • it can, with or without the Vorchargierf kauern (31, 231), be pivoted or movable.
  • the shaft-shaped container (101) comprises, for example, an open and flow-through retention system. From this, the preheated scrap can be added to the vessel (11).
  • the suction opening (131) is arranged in the embodiment in the ceiling (108). It has for example a round, elliptical or oval cross-section.
  • the uncooled or cooled suction line (130) connected to the suction opening (131) has the same cross section.
  • a manifold (132) is arranged above the shaft-shaped container (101), from which the suction line (130) is guided, for example, horizontally in the direction of the cutting line of the first (13) and the second vertical furnace center plane (14) normal thereto ,
  • the suction line (130) comprises an apparent parting line.
  • the suction opening (131) can also be arranged in a side wall (103, 104) or an end wall (102, 105) of the shaft-shaped container (101). For example, it lies there in one
  • Vorchargierflicker (31, 231) is.
  • the two, for example point or axis symmetrical arranged Vorchargierf kauer (31, 231) are connected in the embodiment in the upper region (109) to the shaft-shaped container (101).
  • the connection surfaces are parallel to the first vertical central longitudinal plane (13) of the furnace (10).
  • Each of the pre-charge bins (31, 231) has an overhead reveal shutter (51, 251).
  • the individual closure (51, 251) comprises an interlocking slide (52), which is obviously and closable, for example, by means of two laterally arranged hydraulically actuated cylinder-piston units (53).
  • Above each closure slide (52), a hopper (41) is arranged.
  • the single Vorgrafgierfach (31, 231) comprises a support frame (33) and a bottom (32).
  • the respective support frame (33) has, for example, largely closed walls (36) and can be designed, for example, water-cooled.
  • each support frame (33) a push frame (61; 261) is arranged in each support frame (33) .
  • the push frame (61, 261) movable relative to the support frame (33) and to the shaft-like container (101) is rectangular, for example, in a plan view. However, it can also limit a square area. His
  • the push frame (61; 261) can also be designed such that e.g. the lower side (63) is larger than the upper side (62) and / or oriented further in the direction of the shaft-shaped container (101).
  • the individual push frame (61, 261) is guided in the support frame (33) and in the shaft-shaped container (101), for example, in two transverse sliding guide systems (21), cf. FIGS. 4 and 14.
  • This includes, for example, horizontally anode prism strips (22) arranged on both sides in the support frame (33) and in the shaft-shaped container (101). These are formed, for example, water-cooled.
  • these guide rails (22) in the height direction (74) by a quarter of the height of the push frame (61; 261) above the bottom (32).
  • the two guide surfaces (23, 24) of each prism bar (22) each enclose an angle of 30 degrees with a horizontal plane.
  • the guide system (21) On the push frame side, the guide system (21) comprises an upper (64) and a lower guide plate (65), which are arranged parallel to the prism surfaces (23, 24).
  • the nominal distance of the guide plates (64, 65) and the counter guide (23, 24) is, for example, in each case 10 millimeters.
  • the push frame (61, 261) has chamfers (66).
  • the thrust frame (61, 261) can be inserted into and removed from the prism bars (22) of the support frame (33) during assembly and during maintenance work without problems.
  • the insertion bevels (66) can alternatively or additionally be arranged on the prism strips (22).
  • the two drive units (92) forming a drive device (91) are coupled to one another, for example, by means of a hydraulic synchronization control.
  • the individual drive unit (92) in the exemplary embodiment comprises a water-cooled hydraulic cylinder-piston unit (93).
  • the wall surfaces (67, 68, 71, 81) of the push frame (61, 261) are, for example, water-cooled.
  • water cooling includes two cycles.
  • the connections (69) are located on the rear wall (71) of the push frame (61, 261) facing away from the shaft-shaped container (101). Here they are guided, for example, by means of pipes and hoses to the outside of Schrottvormaschinerm- and feeding device (20). All
  • the rear wall (71) of the push frame (61) is a
  • the thrust shield (71) may, for example, have a resistance to bending compared to the other thrust frame walls (67, 68, 81) increased. This moment of resistance substantially prevents buckling of the
  • the thrust shield (71) may be flat, curved or arched one or two axes.
  • At least one of said central axes is oriented at least approximately vertically. At least approximately vertically here means that the central axis with a vertical angle up to
  • the shaft-shaped container (101) facing the front wall (81) of the push frame (61) projects beyond the plane of the upper edge of the thrust shield (71), for example, by 10% of the height of the push frame (61).
  • the lower edge (82) of the front wall (81) is e.g. arranged substantially parallel to the ground (32).
  • the length of the bumper (83) is at least 90% of the length of the lower edge (81) in the transverse direction (76). This length is normal to the traversing directions (75) of the push frame (61; 261).
  • the overall length of the lower edge (82) corresponds to the length of the front wall (81) in the transverse direction (76) of the push frame (61).
  • the bumper (83) has in the area between the side walls (67, 68) to the bottom (32), for example, a distance in the height direction (74), which is between 5% and 25% of the height of the push frame (61).
  • the front wall (81) on the bottom (32) abut.
  • the bumper (83) along the entire length of the front wall (81) from the bottom (32) is spaced.
  • the bumper (83) may be arcuate. For example, the largest distance of the bumper (83) to the bottom (32) in the central region of the front wall (81) is formed. Here, the radius of the arc or a portion of the arc is greater than the width of the push frame (61, 261).
  • the bumper strip (83) comprises a scuff plate (4) oriented wear plate (84), which is e.g. has a thickness of 30 millimeters.
  • the bumper strip (83) can be chamfered, for example, on the inside (85) and / or on the outside (86) of the front wall (81), cf. Figure 6.
  • the bumper (83) is designed as a water-cooled hollow profile.
  • the lower portion (87) of the front wall (81) or the entire front wall (81) may be inclined.
  • the lower edge (82) of the front wall (81) for example, in the direction of the shaft-shaped container (101) oriented.
  • the front wall (81) or the lower area (87) of the front wall (81) can also be formed with one or two axes, bent or arched. In Figures 7 and 8, such a V-shaped front wall (81) in a plan view and in a longitudinal section of the push frame (61, 261) shown.
  • the tip (88) of the V projects in the direction of the thrust shield (71).
  • the imaginary vertical edge or bending center line of the inside (85) of the front wall (81) is offset in the direction of the shaft-shaped container (101).
  • the tolerance field of the at least approximately vertical bending or Kantstoffline corresponds to the above-mentioned tolerance field in the formation of the thrust shield (71).
  • the bumper strip (83) shown in FIGS. 7 and 8 is designed to be plano-convex, for example, with the convex side facing the thrust shield (71). In a curved design of the bumper (83), its radius - including the sign - be identical to the radius of the lower portion of the thrust shield (71).
  • FIG. 9 shows the plan view of a push frame (61, 261) whose front wall (81) has an inside (85) projecting like a nose in the direction of the push plate (71) and an outside (86) projecting nose-like in the direction of the slot-shaped container (101) ,
  • the bumper strip (83) is thus wider in its central region than in the end regions adjacent to the side walls (67, 68).
  • the bumper strip (83) is biconvex in a plan view.
  • the two push frame (61, 261) are in the in the
  • each slide frame (61, 261) can be assigned its own guide rails (22) on the support frame side and in the shaft-shaped container (101).
  • the two push frames (61, 261) can be assigned its own guide rails (22) on the support frame side and in the shaft-shaped container (101).
  • the drive devices (91) of the two push frames (61, 261) are mutually locked, so that only one respective push frame (61, 261) relative to the shaft-shaped Container (101) is movable. If the width of the shaft-shaped container (101) in the lifting direction of the push frame (61, 261) is greater than twice the length of the longer push frame (61, 261) in this direction, both push frames (61, 261) can be moved independently of one another be.
  • FIG. 10 shows a plan view of such a push frame composite (262).
  • the two push frames (61, 261) can in this case have a common, inner front wall (81).
  • This thrust frame assembly (262) can be driven, for example, by means of a common drive device (91).
  • Vorgrapfach (31) in the shaft-shaped container (101) move.
  • the second push frame (261) connected thereto is moved out of the shaft-shaped container (101) into the second precharging compartment (231). While the scrap (4) from the first push frame (61) in the
  • shaft-shaped container (101) is emptied, after opening the closure (251) of the second
  • Precharging compartment (231) of the second push frame (261) are filled. Thereafter, the closure (251) is closed again. Once the first push frame (61) is moved back into the first Vorchargierfach (31) back, the second push frame (261) from the Vorchargierfach (231) is moved into the shaft-shaped container (101). During the loading of the first pushing frame (61), the second pushing frame (261) is emptied into the shaft-shaped container (101).
  • the furnace system (6) After commissioning, the furnace system (6) is in a starting position.
  • the Schrottvormaschinerm- and feed system (20) is empty and the furnace vessel is horizontal with the lid closed (16).
  • each of the Vorchargierf kauer (31, 231) is a empty push frame (61, 261) arranged.
  • the closures (51, 251) are closed. For example, the suction and the water cooling are turned on.
  • the closure slide (52) is closed.
  • the scrap (4) in the push frame (61) is interlocked, for example.
  • the front wall (81) prevents falling of the scrap (4) in the shaft-shaped loading. container (101). Because of the bumper (83) and the
  • Precharging compartment (31) in the shaft-shaped container (101) are moved.
  • the drive device (91) is actuated. This pushes the first push frame (61) along the guide rails (22) in the shaft-shaped container (101).
  • the thrust shield (71) pushes the scrap (4) along the bottom (32) into the shaft-shaped container (101).
  • the second push frame (261) is filled.
  • Precharging compartment (31) is moved back, the process of the second push frame (261) is released, for example by means of sensors. Also from this push frame (261) is the
  • the sensors can in this case, for example, load cells (162). that support the entire scrap heating and feeding system (20). After charging new scrap (4) and after conveying preheated scrap (4) in the furnace vessel (11) is tared each new. Once scrap (4) from the
  • Precharging compartment (31) is moved into the shaft-shaped container (101), the mass of the scrap (4) in the shaft-shaped container (101) is computationally increased by the mass of previously loaded in the Vorchargierfach (31) scrap (4).
  • Precharging compartment (31, 231) is retracted, it can be reloaded.
  • Induction coil whose alternating field causes heating of the furnace vessel located in the electrically conductive scrap (4).
  • electrodes driven by DC or AC voltage are immersed in a furnace vessel.
  • the furnace vessel serves as a counter electrode.
  • the exhaust gases from the furnace vessel (11) are sucked through the shaft-shaped container (101) and the suction line (130). The exhaust gases, when exiting the furnace, temperatures up to about 800 degrees
  • the melt After melting and homogenizing the molten steel, the melt can be tapped. Optionally, the slag floating on the melt is tipped before tapping. For tapping the furnace vessel (11) is tilted and tilted the liquid steel (5) in a pan (8).
  • part of the scrap (4) can remain in the region of the push frame (61, 261).
  • the pushing frame (61, 261) remains in the shaft-shaped container (101) until the level of the scrap (4) reaches a level of e.g. mass-dependent Schubrahmenausfahrmat has dropped.
  • this level is higher than the level of scrap releasing retraction of the push frame (61; 261).
  • the scrap (4) is e.g. still partially in the push frame (61, 261).
  • the inside (85) of the front wall (81) by means of the bumper (83) displaces the scrap (4), which is higher than the lower edge (82) of the front wall (81).
  • the supernatant scrap (4) can be additionally displaced in the edge regions of the shaft-shaped container (101).
  • the first push frame (61) Once the first push frame (61) has moved back into the Vorchargierfach (31), it can be loaded with the new scrap (4). At the same time the first of the two release conditions for the process of the second push frame (261) is triggered. Once the level of preheated scrap (4) in the shaft-shaped container is e.g. below the level of the soil (32), the second release condition is fulfilled. The second push frame (261) can be retracted. The second release may also be already done when the e.g.
  • scrap level in the shaft-shaped container (101) is still about 15% of the height of the push frame (61, 261) above the bottom (32).
  • the outer side (86) of the front wall (81) with the bumper strip (83) can level the scrap (4) in the chess-shaped container (101).
  • the scrap (4) is additionally displaced into the edge regions of the shaft-shaped container (101).
  • This push frame (261) remains in the shaft-shaped container (101) until the scrap level in the shaft-shaped container (101) releases the outward movement.
  • scrap (4) from the shaft-shaped container (101) is conveyed into the furnace vessel (11) approximately every five minutes by means of the pusher device (151). After retracting the pushing device (151), scrap (4) slips in the shaft-shaped container (101), so that the scrap level decreases.
  • Scrap (4) can thus take place in the time interval in which a retraction of the push frame (61, 261) into the shaft-shaped container (101) due to the scrap level in
  • the shaft-shaped container (101) is prevented.
  • the loaded push frame (261; 61) is provided in the pre-charge compartment (231; 31) as soon as the scrap level in the shaft-shaped container (101) releases retraction, the scrap level in the shaft-shaped container (101) can be increased very early.
  • the scrap (4) in the shaft-shaped container (101) can thus be preheated for a very long time interval. Since this results in a high thermal energy level of the scrap (4) fed into the furnace (10), the melting process requires only a smaller amount of electrical energy, for example compared to the plant described in the prior art. Due to the saved primary energy, the melting process is accelerated. This achieves a short time interval between two taps.
  • the Vorchargierfach (31) relative to the shaft-shaped container (101) is movable in the vertical direction.
  • the Vorchargierfach (31) for example by means of a
  • the cylinder Piston unit (37) may be single-acting or double-acting.
  • Precharging compartment (31) lowered.
  • the manhole-shaped container (101) is closed.
  • the furnace process continues uninterrupted.
  • the loading of the push frame (61) takes place as described above.
  • the Vorchargierfach (31) by means of the cylinder-piston unit (37) is raised.
  • an aperture (39) closing the shaft-like container (101) is raised, for example, or moved laterally. After opening the screen (39) the Vorchargierfach (31) is aligned with the
  • the prism strips (22, 112) arranged in the precharging compartment (31) and in the shaft-shaped container (101) are, for example, spaced apart by 100 millimeters. In the exemplary embodiment, they curse each other.
  • the guide elements (64, 65, 66) on the push frame (61) are constructed, for example, as described above.
  • the guide system (21) may be formed horizontally or in the direction of the shaft-shaped container (101) falling.
  • Precharging compartment (31) arranged drive device (91) the push frame (61).
  • the push frame (61) initially slides along the guide strip (22) in the precharging compartment (31).
  • the lower or upper thrust frame side insertion bevel (66) abuts the prism bar (112) of the shaft-shaped container (101).
  • the push frame (61), which is still in Vorchargierfach (31) is centered in the shaft-shaped container (101).
  • With increasing Hub take over the guide rails (112) of the shaft-shaped container (101) increasingly the management task of the push frame (61).
  • the scrap (4) is emptied into the shaft-shaped container (101).
  • the push frame (61) is moved so far in the shaft-shaped container (101) until the thrust shield (71) has reached or exceeded the inner edge of the shaft-shaped container (101). Once the return stroke has taken place, as soon as the push frame (61) so again in Vorchargierfach (31) sits, the
  • Vorchargierfach (31) closed and the Vorchargierfach (31) lowered.
  • the push frame (61) in Vorrechgierfach (31) can now be reloaded.
  • the release for the method of the push frame (61) can also in this case due to the mass of the scrap (4) in
  • Shaft-shaped container (101) take place.
  • only the mass of the shaft-shaped container (101) is determined without the Vorchargierfach (31).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

L'invention concerne un système de préchauffage et d'alimentation de ferrailles d'un four de production d'acier, comprenant au moins une fermeture qui peut être ouverte et comprenant un récipient en forme de puits doté d'une ouverture de sortie et d'au moins une ouverture d'aspiration, ainsi qu'un système de four comprenant un four et un système de préchauffage et d'alimentation de ferrailles de ce type. La paroi du châssis pousseur orientée en direction du récipient en forme de puits comprend une barre de butée qui délimite celui-ci vers le bas. La longueur de la barre de butée transversalement aux sens de déplacement du châssis pousseur est égale au minimum à 90 % de la paroi avant dans le sens transversal de celui-ci. En outre, l'écart entre la barre de butée et le sol dans le sens vertical est compris entre 5 % et 25 % de la hauteur totale du châssis pousseur. La présente invention permet de développer un système de préchauffage et d'alimentation de ferrailles ainsi qu'un système de four avec lesquels le processus de fusion nécessite une faible énergie et un intervalle de temps court est obtenu entre les coulées.
PCT/EP2013/002100 2012-07-18 2013-07-16 Système de préchauffage et d'alimentation de ferrailles WO2014012655A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR20157002924A KR20150031461A (ko) 2012-07-18 2013-07-16 스크랩 예열 및 공급 시스템
CN201380037035.6A CN104428617A (zh) 2012-07-18 2013-07-16 废料预热及输送系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012014142.4 2012-07-18
DE102012014142A DE102012014142B3 (de) 2012-07-18 2012-07-18 Schrottvorwärm- und Zuführsystem

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Publication Number Publication Date
WO2014012655A2 true WO2014012655A2 (fr) 2014-01-23
WO2014012655A3 WO2014012655A3 (fr) 2014-06-12

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KR (1) KR20150031461A (fr)
CN (1) CN104428617A (fr)
DE (1) DE102012014142B3 (fr)
WO (1) WO2014012655A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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DE102014018050A1 (de) * 2014-12-05 2016-06-09 Kr Tec Gmbh Vorwärmvorrichtung mit Lastaufnahmemittel
DE102014018050B4 (de) * 2014-12-05 2016-09-08 Kr Tec Gmbh Vorwärmvorrichtung mit Lastaufnahmemittel
CN112819952A (zh) * 2021-02-24 2021-05-18 中冶南方工程技术有限公司 一种废钢料场磁盘吊车最优取料点的确定方法
CN112819952B (zh) * 2021-02-24 2022-05-13 中冶南方工程技术有限公司 一种废钢料场磁盘吊车最优取料点的确定方法

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