DE6605653U - LOADING CONTAINER FOR LOADING INDUCTION FURNACES - Google Patents

Description

OR.-INQ. DIPU-INQ. M.SC. I · H »J | OpC-pJhO · ^D "4, IUfUU ^DIPI - ^PHYS ·

HÖGER - LEGAL RIGHT ^ "SRIESSBACH - HAECKER

PATENT LAWYERS IN STUTTGART

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Lester B ₀ Knight & Associates, Inc. 549 West Randolph Street Chicago, Illinois, USA

7-bins for charging induction ovens

The invention relates to a loading container to a. Has lifting with the help of a hoist.

Induction furnaces for melting down metal waste or the like have crucibles that are fireproof Have inner lining. So far, it has been observed that the profitability ax of such an induction

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oven is operated, not only by itself and an electrical disengagement, but also depends essentially on the design of the loading container, with the help of which "he sends" ir4 * They get a thermal container are bulky and difficult to handle, which is one of the reasons for this is that they easily damage the internal refractory lining of these furnaces when they are loaded.

The invention is therefore based on the object of providing a compact and easy-to-use loading container create, which is designed so that the inner lining of an induction furnace when loading neither through the loading container itself through the in the oven Setall waste to be filled in or the like damaged * is »This object is achieved according to the invention in that at the lower end of a cylinder container hinged two semi-conical locking shells and about horizontal swivel axes from a bottom position, in which they rest against one another, can be pivoted into an open position, and that at least the Closing shells are surrounded by a support jacket arranged concentrically to the cylinder container

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The loading container according to the invention has a large loading capacity per unit of volume, so that there is a minimum clearance with a "certain fit a" of the induction furnace "needed? also, the metal waste centrically introduced into the melting pot of the induction furnace, so that its refractory inner lining can not be damaged by pieces of crust falling out from the side; especially when loading one Induction furnace with scrap pieces, however, this inner lining has been endangered to a high degree since it of the sharp-edged and heavy scrap pieces that not as when using a loading container according to the invention fell into the crucible at a distance from the inner wall of the crucible, often through Abrasion or the like was badly damaged.

With regard to the protection of the inner lining of the induction furnace to be charged, it is particularly advantageous to if the opposing edges of the Versohlusschaiea have an Irapezoidal shape and the closing shells in a side view in the direction of the plane of this

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Edges are triangular. Same purpose serve cover plates for when swiveling open the Closing shells formed openings between the cylinder container and closing shells

In the case of the loading container, which has a carrying handle for lifting with the aid of a hoist, is according to a Another feature of the invention of the support bracket coupled to the locking shells so that they are relieved Swing open the support bracket. So if the loading container is placed on an induction furnace, the open Classified indexes automatically, so that the content according to and slides centrically into the melting pot of the induction furnace.

In order to prevent the operating staff from being disturbed by a strong stomach development when loading an induction furnace with dirty scrap, it is expedient to place a single plate against the cylinder container on the upper edge of the support jacket, which is provided with a flue pipe _{or the like}

Further, advantageous developments of the invention show

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Characteristic features result from the patent claims » and / or from the following description, which serves to explain an exemplary embodiment of the invention shown in the drawing; show it:

Pig "1 a sixth view of a shipper according to the invention container;

Pig »2 a side view of the on a crucible of an induction furnace with loading container with open locking necks;

Pig 3 is a plan view of the loading container;

Pig, Figure 4 is a vertical section along the line 4-4 in Pigol;

Pig. 5 a perspective view of the closure shells and adjacent parts and

Pig ,, 6 a perspective view of a locking device ,,

The inventive loading container 10 has a Cylinder container 11 with a reinforcement hoop 12 on its top and a reinforcement hoop 13 on its lower edge; Furthermore, the cylinder container is in the middle In the sighting of its longitudinal axis extending longitudinal stiffeners 14 made of angle iron or the like. Additionally reinforced

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At its lower end, the cylinder container can be closed with the aid of two closure shells 21 and 23 which are hinged on the outside of the cylinder container. The closure shell 21 is, for example, with two downwardly extending joint eyes 23, two joint sleeves 24 and one connecting them to one another Pivot pin 25 ajagelenked · around the cylinder container To keep its emptying on a crucible, a cylindrical container is concentric to the cylinder container Stutmantel 30 is provided for the lower end of the cylinder container as well as surrounds the closure eyelets and the diameter of which is larger than that of the cylinder container, eo that it forms an annular space 31 between itself and the cylinder container. The attachment of the support jacket on the cylinder container are used in the radial direction extending angle pieces 32 triangular shape, the to the longitudinal stiffeners 14 and to an annular plate 33 welded Sinti, which on the upper edge of the Support jacket is arranged. In order to attach the ring plate to the stud jacket, Sohraubbolzen 34 are through the Ring plate and the upper edge of the support jacket passed through. The reinforcement of the support jacket in the axial direction Direction serve several arranged at a distance from each other

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Reinforcements made of angle iron or the like. At the foot
A reinforcement ring 37 ″ is attached to the support jacket ₉
which also consists of an angle iron and a relatively wide contact surface for placing the
Loading container forms on a crucible. A
such is denoted by 38 and provided with an inner lining 39 made of refractory material

The two locking shells 21, which are identical to one another
and 22 are frustoconical in shape, and
its upper edge is essentially the lower hand of the
Cylinder container adjusted as you see them below
to rejuvenate.

The Verachlusaohale 21 is described in more detail as an example: the frustoconical shape is then | aurcü achieves that a flat piece of material is bent so that a side panel 41 with a rectangular shape and \

triangular i Angular fields 42 - 45 are created. In this way, j becomes an upper funnel inlet 46 with a relatively large j Dimensions created, and that of the two closure j

ι funnel formed with shells tapers down to j.

up to an outlet nozzle 47, so that it has inclined sides f

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edges 48 and 49 have »the mutually abutting edges of the outlet nozzle 47 and the side edges 48 and 49 are arranged in the shape of a trapezoid, as can be seen in FIG. The exhaust nozzle 47 is by means of a horizontally extending angle iron 51 reinforced, while two reinforcing ribs 52 and 53 serve to reinforce the closure shell in higher areas. The individual parts of the locking shell 21 identical locking shell 22 are provided with corresponding reference numerals »

The expression "haUjkegelstuapfforaig" for the shape of the locking shells has a double meaning, initially the two locking shells do not have rounded crises ₉ but rather the cx-w ύΰβ & α "te jTöiTn wHTue ijuröh bending lines only approximately achieved, but with the so Shells made from molded locking shells achieve the same effects as if a more round shape were used. If the simpler production is ignored, locking shells with a really rounded shape can also be used. In addition, a cut along the mutually adjacent edges of the locking shells results in an irapezoidal shape, like them is characteristic of frustoconical bodies, while a perpendicular to this section

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right section has an almost triangular shape, as it is characteristic of a cone · This combination of cone and truncated cone section in mutually perpendicular planes is safe in terms of Closing of the cylinder container as well as a controlled, central emptying of bulky material, such as Scrap, especially beneficial. As Fig »2 shows, When the closure shells are completely open, the side panels 41 lie in vertical planes parallel to the longitudinal axis of the cylinder container, so that the cylinder container is easily completely emptied while the Lateral angular fields 42 to 45 essentially adapt to the cylindrical inner surface of the support jacket,

νΰ uiS i6? SCuxU3SuuSxcS sü mc ucfc ι * Xg € ü, oiuu SH jSviSr vertically displaceable tie rods articulated _s , namely the lower ends of which are articulated near the upper edge of each Terschlusschale at a distance from the pivot pin 25 »In addition, a cover plate is attached to each tie rod attached to the _s serving to lead the charge when emptying the Yerladebehälters and to prevent pieces of scrap or the like between the upper edges of Verschlussehalen and the lower edge of the

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Cylinder container fall out; the cover plates move together with the tie rods from a back. drawn, concealed position next to the cylinder container, which they occupy with closed Yerschlussohalen ₉ down into an effective position 30 that they cover the openings that arise when the closure shells are pivoted open. In detail, two tie rods 61 are articulated to the locking shell 21 and two tie rods 62 are articulated to the locking shell 22.For example, the lower ends of the tie rods 61 engage with stud bolts 63 which are aligned with one another and each fastened to an angle 64 on the oiler side the closure shell is welded on. Cover plates 65 are welded to the tie rods 61. Two further cover plates 66, which are a mirror image of the cover plates 65

ί detached, were welded to the tie rods 62

π Stire atf Abaeckplatten 66 is for example in Fig.5

shown in more detail, from which it can be seen that they are approximately was slightly bent in the middle and swei

unfortunately has 67 and 68, the latter along its a cantaiiait reinforcement strip 69 is stiffened " By turning, the cover plates fit into their retracted position when the Yersehlus schalea is closed

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the cylinder container well and they also result in a good transition when the closure shells are pivoted open * Due to a triangular to trapezoidal shape, they are also _{well adapted to the triangular gaps s} that result when the closure shells are pivoted open (Fig. 2) _e

Another feature of the construction according to the invention the actuating elements for the closure shells extend on opposite sides of the cylinder container through the support jacket to the upper ends of the tie rods 61 and 62 and they are operated by a handle in such a way that the locking shells are closed when the loading container is transported are, while they are automatically when the support jacket is placed on the crucible of an induction furnace to open. For this purpose, T-connectors can be shifted in position on the side of the cylinder container guided, and their lower ends are coupled to the tie rods, while their upper ends are hinged to the support bracket are. As FIG. 5 shows, a T-connection piece 80 is composed of a vertical longitudinal section 81 and a horizontal cross section 82 together, the latter with the help of pivot joints 83 and 84 to the

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associated tie rods 61 and 62 is articulated " In the upper end, a pivot joint 86 connects the longitudinal section articulated with a support bracket 85c

To guide the longitudinal section 81, a guide 90 is provided, which is formed by two guide plates 91 and 92 ₉ between which spacers 93 and 94 are arranged; Both the guide plates and the spacers are welded to the side of the cylinder container «. In order to achieve the smoothest possible honor, the broad sides of the connecting piece 80 are guided between pairs of guide rollers 95 and 96 which are rotatably attached to the guide plates and offset from one another in the vertical direction. In this way, the! -Connection piece cannot jam in the guide. "The T-connection pieces are therefore completely straight, symmetrical to one another and guided with little friction.

In order to lock a connecting piece 80 in its upper end position and thus the locking shells in their closed position, a transversely displaceable bolt is provided, which has a projection that engages in an opening of this T-connecting piece, as shown in FIGS. 1, 4 and 6 , this bar is an in

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The transverse direction-versehwenfcbaren bolt 100 _P which is articulated via a Selenk 101 on a bracket 102 welded to the guide 90. The bolt carries a locking bolt 103 which can engage in a quick hole 104 of the T-connector 80. A tool for operating the bolt, for example a rod with a hook at its end, can interact with a hole at the end of the bolt 100 To trim the bolt when pivoting from the outside into its inner locking position, it is expediently arranged so that the lower edge of the lower edge rests on the upper edges 91a and 92a of the guide plates 91 and 92, and the inner end of the locking bolt 103 is supported when it is in the Raatloch engages, against the spacer 93 · Because of the good support chains for the bolt, this itself can be made relatively light without compromising reliability. In order to limit the pivoting of the bolt, there is a stop flange on the outer edges of the guide plates 91 and 92 107 attached, which extends beyond this upwards "

In order to also use the same bolt to move the Verschiusschalen in their open position can be locked, the T-connector 80 has a second locking hole 108, in that the locking bolt 103 can engage when the

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■ So that the closing shells do not have this end position

• being able to look out is immediately above the distance

ρ piece 93 attached a stop flange 109 so that this

both parts the shifting of the locking bolt 103 limit; on the other hand there is sufficient play between this locking bolt and the upper stop flange 109 is provided so that the edges of the closure shells are in contact with one another rather than in the case of a Upward movement of the support bracket, the stop flange 109 prevents further displacement «

A construction identical to the construction just described is of course also on the other side of the

Cylinder container so that the same reference numbers were used »

To enable the smoke and dust to be extracted, which usually builds up on the scrap piece when the crucible is loaded due to oily and other dirt developed, a discharge pipe 110 is attached to one side of the support jacket 30, which by means of a flexible Coupling piece 111 can be connected to a suction line 112; This way it prevents smoke

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and the like due to a chimney effect pulls vertically upwards through the cylinder container * Appropriately is the flexible coupling piece 111 only after The loading container is placed on the crucible, but attached before the closure shells are opened « A suction fan or derglo (it should be provided that a vacuum, for example in the

Of the order of 1.2 cm water column, maintains, bo that a downward air flow in the falling scrap and an upward air flow will be generated from the crucible, after the charge If it has fallen into the crucible, the cylinder container is expediently raised slightly, see above that a lid can be pushed onto the crucible. In this way the entire environment can be

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Another feature of the invention are guide elements for the connecting pieces and the bracket in the area of the pivot joints 86 and arranged in such a way that that these tenon joints over the Pührungs when the carrying bracket is loaded and the locking shells are closed elements lie, which makes it possible ^ in this position to flip the handle, thereby the encrypted

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to lock in their closing position and to load the loading container easily «. In the embodiment shown, the longitudinal sections 81 of the two! Connecting pieces are guided between guide jaws 115 (Pig. 1 and 2), which guide the support bracket when the locking shells are open (Fig. 2) and hold it in a vertical position. so when the locking shells are closed, the connecting pieces move upwards until the pivot joints 86 lie over the guide jaws 115 so that the support bracket can be turned sideways into a position shown in Pigd, in which it rests on a stop surface 116, i.e. it takes a horizontal position. The lower ends of the _{support bracket lie over the guide jaws 115 9} so that the S = connecting pieces can be shifted from below. The locking shells are therefore locked and the bolts 100 can easily be brought into their locking position.

In operation, the loading container is lifted by a hoist brought into a loading station, the weight of the loading container itself being sufficient, the closure shells to hold in their closed position «, then the loading container is lowered so that by pivoting sideways

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the hoist of the drag bracket can be turned into its horizontal position shown _{in lig e 1.} on

in this way the closing shells become temporary locks j so that the latch 100 manually locks into place can be brought »

Each filling up is done with the aid of the loading container the hoist is lifted over the induction furnace, centered over its crucible, then lowered so far, until the support jacket 30 rests on the upper edge of the crucible (Pig.2) 5 while the exhaust pipe must 110 are aligned with the suction line 112 · Then the coupling piece is attached in, and the seal 100 are released · 3? and the carrying handle 85 can gradually be relieved by lowering the hoist, so that j ax Ye ^ suhiusschaien with the desired 5e-

open echsisdigkeit; at the same time the Abdeek-

plates 65 and 66 lowered on the Zqptangen so that they close the openings above the closing shells and prevent the metal pieces from falling out to the side * Because of the frustoconical shape of the locking shells and the arrangement of the cover plates, the contents of the cylinder container fall at a distance from the inner liner in the center of the crucible so that

the inner lining neither worn or worn by abrasion

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is destroyed in another way. Since the i-

Slide 80 slowly and smoothly downwards,

, The Verachlusaohalen 80 open symmetrically, ao

that no scrap pieces are outside of the sylist keeper can get stuck · Due to that in the suction line 112 Maintained vacuum will cause dewatering of reaction products and the like in the house, in the induction furnace is standing, prevents

After emptying the loading container, the hoist lifts and closes the locking shells, whereupon the coupling piece 111 is removed * Dasn sird dsr Y ^ r = Loading container slightly raised so that a lid can be pushed onto the crucible, whereupon the

Loading container ^ isdsr in the loading station surüekge— is brought

With a single loading container according to the invention several induction furnaces can be loaded.

Bs is also possible after emptying the cylinder container the locking bolts 103 in the second Introduce bast holes 108 and so keep the locking shells in their open position. As a result, close

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See the sealing shells when lifting the loading container not, which is important when the crucible is filled so high with scrap or the like is that the sioh closing shells "with Lifting the loading container would take hold of parts of the load just filled into the crucible. However, the loading container then has to be set down next to the induction furnace, ura to remove the locking bolts 103 from the fasteners 108 »

It can be of great advantage if, according to a further feature of the invention, the loading container according to the invention has an auxiliary container in order to add carbon to the soot or the like shortly before or during filling into the crucible ₉ so that the steel composition can be influenced, for example. As a result, as shown in Figures _"9 2 shows an auxiliary container 20 arranged outside of the Verladebehälter _s can be filled with carbon granules 20; At its lower end, the auxiliary container has an outlet pipe 20b ₅ which is passed through the support jacket 30 so that the carbon granulate can be drained off above the melting crucible 38; for this purpose, a valve 20c is arranged at the lower end of the outlet pipe. In this way

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the carbon is best exploited, and at When loading the induction furnace, there is no dust,

Of course, the cylinder container 11 and the support jacket 30 cannot be exactly circular cylindrical, their cross-sections could also have the shape of polygons. Even the upper edges of the closure shells do not necessarily have to be completely on the lower edge of the cylinder container abut, and awisohen the adjacent edges the two Yerschlusschalen can also in their closed position a small gap still remains without thereby impairing the functionality of the inventive Loading container is affected *

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Claims (1)

RA. 516 218-4.10.66 A 35 408 b
b - ta 66 - 21 - 1β loading container for charging induction furnaces «, characterized in that at the lower end of a cylinder container (11) between frustoconical closing shells (21,22) are articulated and pivoted about horizontal pivot axes (25) from a closed position in which they rest against each other ₉ into an open position are, and that at least the closing shells are surrounded by a support jacket (30) arranged concentrically to the cylinder container « 2, container according to claim 1 _9, which has a carrying handle for lifting with the help of a hoist, characterized in that the carrying handle (85) is coupled to the connection shells (21,22) in such a way that these swivel out when the carrying handle is relieved * 3 «Container according to claims 1 and 2 _9, characterized in that the support jacket (30) has a support surface (37) for placing the loading container on the induction furnace (38). 4 «Container according to claim 2 or 3, characterized by a locking device (115) for the closed position the locking shells (21,22) when the load-bearing bracket (85) is relieved, - 22- Δ 35 408 b b - ta 3.10.66 - 22 - 5β container iueh claim 4 »characterized in that the support bracket (85) can be folded down. 6 * container according to one or more of the preceding claims, characterized in that the diameter of the support jacket (30) is greater than that of the cylinder container (11). 7 * Container according to claim 6, characterized in that the the mutually abutting edges of the closure shells have a trapezoidal shape, and that the closure shells are triangular in a side view in the direction of the plane of these edges « 8c container according to claim 7, characterized by cover plates (65,66) for the openings formed between the cylinder container when the closure shells (21,22) are pivoted open (11) and locking shells » 9ο container according to one or more of claims 2 to 8, characterized in that on both sides of the cylinder tank (11) T-connecting pieces (80) in the longitudinal direction of the cylinder container are displaceably guided, the long sections (81) of which the support bracket (85) engages, and that on cross-sections (82) of these! -connectors with the coded (21,22) articulated - 23 - 1
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b - ta -23 - , characterized by Tie rods (OIL , 62) hinged are ο to the Zugstangert 10o container after the claims 8 and 9 net that the Abdeokplatten (65.66) (61,62) are attached «I. (11, container according to claim 9 or 10, characterized in that that the tie rods (61,62) on the locking eyelets (21,22) near their mutually abutting edges are articulated j and the Schwenkaohsen (25) of each Versohlusschale on their j ϊ is arranged on the side facing away from these edgeso] 12. Container according to claim 10 or 11, characterized in that the cover plates (65,66) have a bend and an approximately having a trapezoidal shape j 13 _β container according to one or more Her claims 9 to 12 _p characterized in that the support bracket (85) is hinged to the longitudinal sections (81) of the connecting pieces (80) is. 14ο container according to one or more of the preceding claims, characterized by a movable locking member (100) arranged on the cylinder container (11) for engagement in a latch (104,108) in a connecting member (80) between the! Prague bracket and the locking shells (21,22). - 24 - A 35 408 to b - ta 3 * 10.66 - 24 - 15o or more of the container-e Anspriich 9 to 14, according to one that the! -Verbindungsstücke (80) are guided between rollers (95 _S 96), " 16. Container according to claims 5 to 15, characterized in that the cylinder container (11) on both sides of each longitudinal section (81) of the connecting pieces (80) guide jaws (115) are attached, and that the 2ragbügel (85) at The closed locking shells (21, 22) are attached to the! connecting pieces (80) via the guide jaws 17 »Container according to one or more of claims 6-16, characterized by an insert plate (33) resting against the cylinder container (11) on the upper edge of the support jacket (5O) ₉ which is provided with a discharge pipe (110) ₀ 18. Container according to one or more of the preceding claims, characterized by one on the cylinder container (11) attached charcoal granulate container (20), which has a valve-controlled Having outlet (20b) 680565325.6.70