EP1422974A1 - Formkörper aus einer Söderbergmasse - Google Patents
Formkörper aus einer Söderbergmasse Download PDFInfo
- Publication number
- EP1422974A1 EP1422974A1 EP03405309A EP03405309A EP1422974A1 EP 1422974 A1 EP1422974 A1 EP 1422974A1 EP 03405309 A EP03405309 A EP 03405309A EP 03405309 A EP03405309 A EP 03405309A EP 1422974 A1 EP1422974 A1 EP 1422974A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- groove
- shaped
- base plate
- wall
- 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
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
- H05B7/08—Electrodes non-consumable
- H05B7/085—Electrodes non-consumable mainly consisting of carbon
- H05B7/09—Self-baking electrodes, e.g. Söderberg type electrodes
Definitions
- the invention relates to a shaped body made from a Söderberg mass for electric arc furnaces, with a floor surface, one at a right angle to the floor surface standing longitudinal axis and one parallel to the longitudinal axis from the circumference of the floor surface circumferential surface extending to the circumference of a cover surface.
- Shaped bodies from a Söderberg mass are used in practice for different Electrolysis processes used, for example for the production of ferroalloys.
- a Söderberg mass consists mainly of anthracite, coke, binders and possibly other additives.
- To transport the molded body put them on pallets after production and can be Forklift trucks are transported. The insertion of the shaped bodies into the electrodes usually takes place by means of a crane.
- the invention has for its object the shaped body of the aforementioned Type in such a way that they are transported with a forklift can, without the need for a pallet or other packaging aids are.
- the Bearing surface formed by the bottom surface and the groove surface by a first Groove wall of the mutually opposite sides of the lateral surface molded groove-shaped depressions is formed.
- first embodiment of the shaped body according to the invention have the groove-shaped depressions one with the longitudinal axis an angle of about 30 to 60 °, preferably about 45 ° forming second rising from the outer surface against the top surface Groove wall on.
- the two groove walls are preferably parallel to one another Longitudinal axis lying groove bottom, the groove bottoms of the two The depressions are expediently parallel to one another.
- the special one Cross-sectional formation of the groove-shaped depressions allow a safe and rapid movement of the forks of a forklift truck to the one serving as a support first groove wall.
- the cylindrical shape is for molding the not groove-shaped depressions.
- the bearing surface is formed by the outer surface and the groove surface by one Groove bottom of the groove-shaped molded from the same side of the lateral surface Depressions is formed.
- the groove-shaped depressions preferably run at a right angle to the Longitudinal axis and the opening of the groove-shaped depressions is at least the same width as the groove bottom.
- the groove base can be used for better shaping bounded by two groove walls that diverge at an angle of 0 to 20 ° his.
- the moldings according to the invention can be used without a pallet with a forklift unloaded, transported and stacked. In addition, traffic jams and Storage space can be saved.
- the devices used today for the production of moldings from a Söderberg mass have one on a level Base plate standing tubular mold with a right angle to Base plate standing mold axis.
- the mold includes one with the base plate connected, fixed mold wall part and two on the fixed Mold wall part articulated to be parallel to the mold axis Swiveling parts of the mold wall.
- Such a device is distinguished for the production of the first embodiment of the shaped body according to the invention from that two web-shaped elevations, each one parallel and in the same Distance to the base plate, the first one pointing away from the base plate Protect the web wall from the swiveling mold wall parts.
- the elevations are opposite each other and protrude into the inside of the mold.
- the web-shaped elevations preferably have one with the mold axis an angle of about 30 to 60 °, preferably about 45 °, of the Mold wall parts against the interior of the mold rising second web wall on.
- the two web walls are preferably one parallel to the mold axis lying transverse wall limited, the transverse walls of the two elevations stand preferably parallel to each other in the closed state of the mold.
- the mold wall parts form the molds for the production of customary shapes in the closed state of the mold, a cylindrical mold inner wall.
- the device suitable for the shaped body is characterized by this that the pivotable mold wall parts are articulated on the base plate are, the swivel axes are parallel to the base plate and the web-shaped Elevations with a transverse wall facing away from the base plate Put up the base plate.
- the web-shaped elevations preferably run at a right angle the swivel axes and the transverse wall pointing away from the base plate at least as wide as the web-shaped elevation on the base plate.
- the transverse wall pointing away from the base plate can provide a better shape of two web walls converging at an angle of 0 to 30 ° be limited.
- the bottom surface 14 is also the bearing surface of the Shaped body 10.
- two groove-shaped depressions 18, 20 are formed from opposite sides of the lateral surface 12 .
- the two groove-shaped Recesses 18, 20 each have a parallel and at the same distance a to the bottom surface 14 lying groove wall 22, 24 directed against the bottom surface 14 on.
- the distance a of the first groove wall directed against the bottom surface 14 22, 24 to the top surface 16 is smaller than the distance b of the first groove wall 22, 24 to the floor surface 14.
- the groove-shaped depressions 18, 20 face one of the outer surface 12 the top surface 16 rising second groove wall 26, 28.
- the groove wall 26, 28 forms an angle ⁇ of, for example, 45 ° with the longitudinal axis z.
- the two groove walls 22, 26 and 24, 28 are from a parallel to the longitudinal axis z lying groove bottom 30, 32 limited.
- the groove bottoms 30, 32 of the two depressions 18, 20 are parallel to each other.
- the shaped body shown in FIGS. 1 to 3 has a diameter, for example D and a height h of 1000 mm each, the mutual distance d the two groove bottoms 30, 32 is 800 mm.
- the distance a of the first groove walls 22, 24 from the bottom surface 14 is, for example, 750 mm, the distance b to the top surface 16 250 mm.
- the maximum width s of the first groove wall 22, 24 is 100 mm.
- Shaped body 10 with the groove-shaped recesses 18, 20 has a tubular Mold 34 made of, for example, 8 mm thick steel sheet.
- the mold 34 lies a base plate 36 made of steel.
- the base plate 36 stands up for the vibrating process suitable steel feet 38.
- the mold 34 is formed in three parts and has a fixed mold wall part connected to the base plate 36 40, on each of which a mold wall part 42, 44 via hinge joints are articulated and pivotable about pivot axes e, f.
- About interlocks 46 with plug pins can mold 34 in the closed state with formation a cylindrical mold inner wall 68 can be locked. It says the axis m of the mold 34 is perpendicular to the horizontal base plate 36.
- the web-shaped elevations 48, 50 are on the inside of the two pivotable mold wall parts 42, 44 web-shaped elevations 48, 50 formed in the closed State of the mold 34 facing each other and inside protrude the mold 34.
- the web-shaped elevations 48, 50 each have a parallel and at the same distance t to the base plate 36, from the Base plate 36 facing away from the pivotable mold wall parts 42, 44 projecting first web wall 52, 54.
- a second web wall 56, 58 rises from the mold wall parts 42, 44 against the interior of the mold 34 and forms an angle ⁇ of, for example, 45 ° with the mold axis m.
- the two web walls 52, 56 and 54, 58 are parallel to the mold axis m lying transverse wall 60, 62 limited.
- the transverse walls 60, 62 of the two web-like elevations 48, 50 are in the closed state of the mold 34 parallel to each other.
- the closed mold 34 is heated with hot still filled with plastic Söderberg mass. Then the device shaken or vibrated to compress the Söderberg mass and subsequently cooled by applying water to the mold outer wall.
- the mold 34 is unlocked and by pivoting the two mold wall parts 42, 44 open.
- a cylindrical molded body 110 made of a Söderberg mass, also called Söderberg cylinder has a bottom surface 114, a top surface 116 and a lateral surface 112 with a longitudinal axis z.
- the Shell surface 112 is composed of two parallel, rectangular Surfaces 172, 174 and two cylinder segment surfaces extending over 90 ° 176, 178. One of the rectangular areas is also the storage area. From the same side of the outer surface 112 or the rectangular bearing surface 172, two groove-shaped depressions 118, 120 are formed. The two groove-shaped depressions 118, 120 each have a parallel and in the same Distance b 'to the rectangular bearing surface 172, against the bearing surface 172 directed groove bottom 130, 132.
- the groove-shaped depressions 118, 120 have two groove bottoms 130, 132 groove walls 122, 126 or respectively delimiting and ending on the bearing surface 172 124, 128.
- the groove walls 122, 126 and 124, 128 can be parallel to each other and run at a right angle to the longitudinal axis z.
- the groove walls 122, 126 and 124, 128 also against the bearing surface 172 at an angle of e.g. about 10 ° against a plane perpendicular to the longitudinal axis z diverge.
- the groove walls 122, 126 and 124, 128 of the two depressions 118, 120 are parallel to each other.
- the shaped body shown in FIGS. 7 to 9 has a diameter, for example D 'of 900 mm, a length L of 2000 mm and a radius R of Cylinder segment walls 176, 178 of 450 mm, the mutual distance d ' the corresponding groove walls 122, 124 and 126, 128 is 800 mm.
- the distance b 'of the groove bottoms 130, 132 from the bearing surface 172 is for example 80 mm, the width s' of the groove bottoms 130, 132 100 mm.
- In the cylinder segment walls 176, 178 are conical Wells 180, 182 arranged.
- a device for producing the shaped body shown in FIGS. 10 and 11 110 with the groove-shaped depressions 118, 120 has a mold 134 for example 8 mm thick steel sheet.
- the mold 134 is from a base plate 136 made of steel.
- the base plate 136 stands up for the vibrating process suitable steel feet 138.
- the mold 134 has two with the Base plate 136 connected, fixed mold wall parts 140, 141.
- On the bottom plate 136 are further two pivotable mold wall parts 142, 144 Articulated via hinge joints and pivotable about pivot axes e ', f'.
- the mold 134 can be closed in the closed position by means of latches 146 with plug pins State locked.
- the web-shaped Elevations 148, 150 each have the same distance from the base plate 136 lying transverse wall 160, 162.
- Two web walls 152, 156 and 154, 158 delimit the transverse walls 160, 162 and run parallel to one another or run at an angle of e.g. 10 ° to one perpendicular to the base plate 136 Plane apart so that the width of the web-shaped elevations 148, 150 on the base plate 136 is equal to or greater than the width of the transverse walls 160, 162.
- the closed mold 134 is heated with hot still filled with plastic Söderberg mass. Then the device shaken or vibrated to compress the Söderberg mass and subsequently cooled by applying water to the mold outer wall. As soon as the resulting shaped body 110 reaches sufficient strength has, the mold 134 is unlocked and by pivoting the two mold wall parts 142, 144 open.
- the corresponding groove-shaped Depressions 118, 120 are formed in the molded body 110.
- the removal of the Shaped body 110 from the opened mold 134 takes place after gripping a gripper and lifting, e.g. with a crane, by means of one in FIG. 12 shown forklift 164, the two parallel, at a lateral distance as well has height-adjustable forks 166.
- the forklift 164 drives with the previously positioned according to the dimensions of the molded body 110 Forks 166 into the groove-shaped recesses 118, 120.
- the two conical recesses 180, 182 in the cylinder segment walls 176, 178 gripping and erecting and inserting the shaped bodies 110 in electric arc furnaces.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
- Fig. 1 eine Schrägsicht auf eine erste Ausführungsform eines Formkörpers mit nutenförmigen Vertiefungen;
- Fig. 2 einen Schnitt durch den um 90° gekippten Formkörper von Fig. 1 in der Formkörperachse;
- Fig. 3 einen Schnitt durch den Formkörper von Fig. 1 nach deren Linie I-I;
- Fig. 4 eine Schrägsicht auf eine Vorrichtung zur Herstellung des Formkörpers von Fig. 1;
- Fig. 5 eine Schrägsicht auf die Vorrichtung von Fig. 4 in geöffnetem Zustand;
- Fig. 6 eine Seitenansicht eines Hubstaplers beim Transport des Formkörpers von Fig. 1.
- Fig. 7 eine Schrägsicht auf eine zweite Ausführungsform eines Formkörpers mit nutenförmigen Vertiefungen;
- Fig. 8 einen Schnitt durch den Formkörper von Fig. 7 nach deren Linie I-I in Richtung der Formkörperachse;
- Fig. 9 einen Schnitt durch den Formkörper von Fig. 8 nach deren Linie II-II;
- Fig. 10 eine Schrägsicht auf eine Vorrichtung zur Herstellung des Formkörpers von Fig. 7;
- Fig. 11 eine Schrägsicht auf die Vorrichtung von Fig. 10 in geöffnetem Zustand;
- Fig. 12 eine Seitenansicht eines Hubstaplers beim Transport des Formkörpers von Fig. 7.
Claims (19)
- Formkörper aus einer Söderbergmasse für Lichtbogenöfen, mit einer Bodenfläche (14, 114), einer in einem rechten Winkel zur Bodenfläche (14,114) stehenden Längsachse (z) und einer parallel zur Längsachse (z) vom Umfang der Bodenfläche (14,114) zum Umfang einer Deckfläche (16,116) verlaufenden Mantelfläche (12,112),
dadurch gekennzeichnet, dass
zwei nutförmige Vertiefungen (18,20;118,120) mit je einer parallel und in gleichem Abstand (b) zu einer Lagerfläche liegenden, gegen die Lagerfläche gerichteten Nutfläche von der Mantelfläche (12,112) eingeformt sind. - Formkörper nach Anspruch 1, dadurch gekennzeichnet, dass die Lagerfläche von der Bodenfläche (14) gebildet ist und die Nutfläche von einer ersten Nutwand (22,24) der von einander gegenüberliegenden Seiten der Mantelfläche (12) eingeformten nutförmigen Vertiefungen (18,20) gebildet ist.
- Formkörper nach Anspruch 2, dadurch gekennzeichnet, dass der Abstand (a) der gegen die Bodenfläche (14) gerichteten ersten Nutwand (22,24) zur Deckfläche (16) kleiner ist als der Abstand (b) der ersten Nutwand (22,24) zur Bodenfläche (14).
- Formkörper nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die nutförmigen Vertiefungen (18,20) eine mit der Längsachse (z) einen Winkel α von etwa 30 bis 60°, vorzugsweise etwa 45° bildende, von der Mantelfläche (12) gegen die Deckfläche (16) ansteigende zweite Nutwand (26,28) aufweisen.
- Formkörper nach Anspruch 4, dadurch gekennzeichnet, dass die beiden Nutwände (18,26;20,28) von einem parallel zur Längsachse (z) liegenden Nutboden (30,32) begrenzt sind und die Nutböden (30,32) der beiden Vertiefungen (18,20) parallel zueinander stehen.
- Formkörper nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Mantelfläche (12) zylinderförmig ist.
- Formkörper nach Anspruch 1, dadurch gekennzeichnet, dass die Lagerfläche (172) von der Mantelfläche (112) gebildet ist und die Nutfläche von einem Nutboden (130,132) der von der gleichen Seiten der Mantelfläche (112) eingeformten nutförmigen Vertiefungen (118,120) gebildet ist.
- Formkörper nach Anspruch 7, dadurch gekennzeichnet, dass die nutförmigen Vertiefungen (118,120) in einem rechten Winkel zur Längsachse (z) verlaufen.
- Formkörper nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Öffnung der nutförmigen Vertiefungen (118,120) wenigstens gleich breit ist wie der Nutboden (130, 132).
- Formkörper nach Anspruch 9, dadurch gekennzeichnet, dass der Nutboden (130,132) von zwei in einem Winkel α von 0 bis 20° auseinanderlaufenden Nutwänden (122,126;124,128) begrenzt ist.
- Vorrichtung zur Herstellung eines Formkörpers aus einer Söderbergmasse für Lichtbogenöfen, mit einer ebenen Bodenplatte (36), einer auf der Bodenplatte (36) stehenden Kokille (34), wobei die Kokille (34) wenigstens ein mit der Bodenplatte (36) verbundenes, feststehendes Kokillenwandteil (40) und zwei um Schwenkachsen (e, f) schwenkbare Kokillenwandteile (42,44) aufweist,
dadurch gekennzeichnet, dass
zwei stegförmige Erhebungen (48,50) mit je einer parallel und in gleichem Abstand (t) zur Bodenplatte (36) liegenden Stegwand (52,54) von wenigstens einem Kokillenwandteil (42,44) abragen. - Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die Kokille rohrförmig ist und eine in einem rechten Winkel zur Bodenplatte (36) stehende Kokillenachse (m) aufweist, wobei die schwenkbaren Kokillenwandteile (42,44) am feststehenden Kokillenwandteil (40) angelenkt sind und die Schwenkachsen (e, f) parallel zur Kokillenachse (m) liegen, von den schwenkbaren Kokillenwandteilen (42,44) abragen und im geschlossenen Zustand der Kokille (34) einander gegenüberliegen und in das Innere der Kokille (34) einragen.
- Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, dass die stegförmigen Erhebungen (48,50) eine mit der Kokillenachse (m) einen Winkel α von etwa 30 bis 60°, vorzugsweise etwa 45° bildende, von den Kokillenwandteilen (42,44) gegen das Innere der Kokille (34) ansteigende zweite Stegwand (56,58) aufweisen.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass die beiden Stegwände (52,56; 54,58) von einer parallel zur Kokillenachse (m) liegenden Querwand (60,62) begrenzt sind und die Querwände (60,62) der beiden Erhebungen (48,50) im geschlossenen Zustand der Kokille (34) parallel zueinander stehen.
- Vorrichtung nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass die Kokillenwandteile (40,42,44) im geschlossenen Zustand der Kokille (34) eine zylinderförmige Kokilleninnenwand (68) bilden.
- Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die schwenkbaren Kokillenwandteile (142,144) an der Bodenplatte (136) angelenkt sind, die Schwenkachsen (e', f') parallel zur Bodenplatte (136) liegen und die stegförmigen Erhebungen (148,150) mit einer von der Bodenplatte (136) weg weisenden Querwand (160,162) von der Bodenplatte (136) aufragen.
- Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass die stegförmigen Erhebungen (148,150) in einem rechten Winkel zu den Schwenkachsen (e', f') verlaufen.
- Vorrichtung nach Anspruch 16 oder 17, dadurch gekennzeichnet, dass die von der Bodenplatte (136) weg weisende Querwand (160,162) wenigstens gleich breit ist wie die stegförmige Erhebung (148,150) an der Bodenplatte (136).
- Vorrichtung nach Anspruch 18, dadurch gekennzeichnet, dass die von der Bodenplatte (136) weg weisende Querwand (160,162) von zwei in einem Winkel von 0 bis 30° auf einander zulaufenden Stegwänden (152,156;154,158) begrenzt ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20030405309 EP1422974B1 (de) | 2002-11-20 | 2003-05-01 | Formkörper aus einer Söderbergmasse |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02406004A EP1422973A1 (de) | 2002-11-20 | 2002-11-20 | Formkörper aus einer söderbergmasse |
EP02406004 | 2002-11-20 | ||
EP20030405309 EP1422974B1 (de) | 2002-11-20 | 2003-05-01 | Formkörper aus einer Söderbergmasse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1422974A1 true EP1422974A1 (de) | 2004-05-26 |
EP1422974B1 EP1422974B1 (de) | 2011-12-14 |
Family
ID=32232212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030405309 Expired - Lifetime EP1422974B1 (de) | 2002-11-20 | 2003-05-01 | Formkörper aus einer Söderbergmasse |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1422974B1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE529118C (de) * | 1925-06-06 | 1931-07-10 | Josias Rees | Metallarmierte kontinuierliche Kohlenelektrode fuer elektrische OEfen |
DE7624106U1 (de) * | 1976-07-31 | 1977-08-04 | Eka Plastic A S Stange | Verpackungseinheit |
US5373958A (en) * | 1993-03-24 | 1994-12-20 | Lobo Containers, Inc. | Plastic container with threaded closure |
US5749497A (en) * | 1996-07-03 | 1998-05-12 | S. C. Johnson & Son, Inc. | Container and retractable hanger system |
-
2003
- 2003-05-01 EP EP20030405309 patent/EP1422974B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE529118C (de) * | 1925-06-06 | 1931-07-10 | Josias Rees | Metallarmierte kontinuierliche Kohlenelektrode fuer elektrische OEfen |
DE7624106U1 (de) * | 1976-07-31 | 1977-08-04 | Eka Plastic A S Stange | Verpackungseinheit |
US5373958A (en) * | 1993-03-24 | 1994-12-20 | Lobo Containers, Inc. | Plastic container with threaded closure |
US5749497A (en) * | 1996-07-03 | 1998-05-12 | S. C. Johnson & Son, Inc. | Container and retractable hanger system |
Also Published As
Publication number | Publication date |
---|---|
EP1422974B1 (de) | 2011-12-14 |
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