DE10033657C2 - Device for charging a copper shaft melting furnace - Google Patents

Description

The invention relates to a device for charging a gas in particular fired copper shaft melting furnace, each with one batch of Kupferka test plates and / or copper scrap such as strand or wire pieces, under Ver turning one in guide rails of an elevator frame from a lower one Loading station in an upper discharge station transportable load basket. such Charging devices are known from DE 39 34 977 C2, US 3756430 or US 3508671 became known.

The loading device of the type mentioned is used for loading of gas-fired copper shaft melting furnaces in particular. It will save Copper cathodes also copper scrap, loose or pressed, continuous castings and ge cut pieces of wire charged. The loading of the shaft melting furnace is preferably carried out automatically after loading the elevator cage. Doing so the load basket guided in guide rails is pulled up by means of a cable winch, the load cage due to a specially designed rail shape in the upper end position automatically performs a tipping movement. subsequently, The load basket is lowered again to be reloaded.  

For a sufficiently high melting capacity, the furnace must be filled well conducive. The cathode packages to be entered must be loosened in the Oven shaft lie in order to have the largest possible surface area of the copper train. In particular, the copper material must not lie in the furnace as a package. In particular, the "Mount Isa" cathodes, which, for. Are currently being used problematic because of their very smooth and flat surfaces, because Katho The packages of this variety are difficult to separate and during batching therefore mostly fall into the shaft furnace in package form. This compact Pa Experience has shown that kets can only be melted with difficulty, which means that the Melting capacity drops, in contrast the gas consumption increases and the furnace lining is impermissibly high due to the increased temperature.

In conventional loading devices from the prior art, the load basket initially pivoted by 90 ° at the beginning of the elevator movement. Until the Auswer The total content of the copper is pivoted by at least 200 °. The smooth packages slide as a whole, i.e. H. unresolved, in the Shaft furnace. However, the basket's 90 ° movement at the beginning of its Transport movement the advantage that loose shot parts and pressed pieces char can be greeded.

Starting from the aforementioned prior art, the object of the invention a device for charging a copper shaft melting furnace each with a batch of copper cathode plates to indicate the previous avoids mentioned disadvantages of difficulties and a good filling of the Furnace enables, in particular, the cathode plates to be abandoned come to rest loosely in the furnace shaft in order to make one as possible to offer large surface area of the copper in the melting process, in order to hereby the To increase melting capacity, gas consumption within economic limits hold and to protect the lining of the shaft from increased temperature Zen.  

This task is carried out in a generic charging or loading direction according to the invention with the features specified in claim 1 ge solves.

If the 90 ° - Movement at the beginning of the promotion omitted and the load basket fiction accordingly redesigned so that the cathodes are loaded from the front and relatively can fall out to the top of the load basket, so they only have to do so little at least 120 degrees. The material does not slip in the form of a closed package in the shaft furnace, but the cathodes fall into place other into the oven like a fan. As a result, the filling of the Oven shaft reached. The individual discharge for each plate is additionally carried out the profile of the profile element favors.

The profile element holds the edges of the cathode lying on the bottom when it is removed fall firmly, so that they only overhead over the edge lying in the tilt position can tip over and thus be separated from each other.

The profile element is preferably a pair of tooth profiles that are parallel and spaced apart seemed trained.

In addition, the two toothings of the toothed profile rails are mutually ver sets, so that in each case the plates of a cathode stack in side tilt positions are offset.

Refinements of the invention are provided in accordance with the subclaims hen.

Details, features and advantages of the invention emerge from the diagram tables explanation of an embodiment schematically shown in the drawings approximately example. Show it:

Fig. 1 shows a device for charging a shaft furnace copper according to the prior art, in side view,

Fig. 2 shows a device for charging a shaft furnace copper according to the invention, also in side view,

Fig. 3a in perspective view, obliquely from above, a load basket in the empty state;

FIG. 3b shows the load basket according to Fig 3a, but with a loading of copper cathode plates.

Fig. 4 in side view and on a somewhat enlarged scale, a load basket with toothed rails and a rear wall.

Fig. 1 shows a device for charging a gas-fired copper shaft melting furnace in particular with batch transport of copper cathode plates in package form according to the prior art. In the loading station 12 , the load basket 5 is tilted forward with its opening into an approximately vertical plane and then loaded.

At the beginning of the charging cycle, the load basket 5 is first pivoted through 90 ° with its opening into a horizontal position through 90 ° and pulled upwards in the elevator frame. When it arrives at the drop station 11 , the load basket 5 with its batch of copper plates, initially still in the form of a package 13 , is pivoted further by a total of at least 200 ° until it is dropped, each package 13 slipping out of the load basket 5 and in the furnace shaft falls.

Because compact packets 13 hold together because of their flat and flat surface, they form a compact pile with a comparatively small surface area and can only be melted with difficulty, with the melting capacity decreasing, the gas consumption increasing and the furnace lining being subjected to greater stress due to the increased temperature.

Fig. 2 shows the device according to the invention for charging the copper shaft melting furnace, each with a batch of copper cathode plates.

In contrast to the embodiment according to FIG. 1, the device according to the invention uses a load basket which is open to the front loading side and at the top. This is conveyed from the loading station at the beginning of the conveyance without an initial swing on the elevator frame up to the discharge station and is pivoted there into a discharge position. The swivel angle is about 95 °. The plates that can be engaged in the tooth profiles of the toothed profile rails are successively thrown out into the shaft melting furnace, falling individually overhead from the load basket. This creates a so-called domino effect on the standing plates.

The guide rails 1 , 2 are formed in the discharge station 11 for performing a tilting movement of the load cage 5 by approximately 120 ° to the shaft melting furnace.

The tooth profiles 9 of the parallel tooth profile rails 10 are displaced relative to each other by one tooth pitch in parallel in such a way that the plates 8 of a Ka method package 13 , as shown in FIG. 3b, are offset from one another in side tilt positions, which favors the domino effect.

The invention further provides that each tooth gap 23 of a toothed profile rail 10 to avoid jamming of tiltable plates 8 on the rear tooth surface is formed with a rounding R, the radius center of which coincides with the edge 14 of an opposite straight tooth surface, as shown in FIG. 4 is clearly visible.

Further shows a combination of FIGS. 3 to 4, that the load basket a rear wall connected to the platform 6 in a vertical position be seated 5 15, parallel to the inside of two spaced, as supports for Einset zen of a scrap bucket (not shown) trained rail profiles 16 , 16 '.

The load cage 5 has below its loading area 6 a subframe 17 arranged parallel to it at a distance and with guide wheels 18 , on which rope disks 19 and 20 are arranged for guiding the pull rope 4 . The pulling rope 4 according to FIG. 2 can be driven by a winch 21 arranged at the highest area of the drop station 11 .

LIST OF REFERENCE NUMBERS

1

guide rail

2

guide rail

3

lift frame

4

rope

5

Lastkorb

6

load area

7

frame foot

8th

Plate pack / plates

9

tooth profile

10

Tooth profile rails

11

discharge station

12

loading

13

Package / batch

14

edge

15

rear wall

16

.

16

'' Rail profile

17

subframe

18

guide wheels

19

sheave

20

sheave

21

winch

23

gap

Claims (8)

1. Device for charging a gas-fired copper shaft melting furnace in particular, each with a batch of copper cathode plates and / or copper scrap such as strand or wire pieces, using a in guide rails ( 1 , 2 ) of a pull-out frame ( 3 ) from a lower loading station ( 12 ) Load cage ( 5 ) which can be conveyed into an upper discharge station ( 11 ), characterized in that the load cage ( 5 ) is also completely open upwards in addition to the front loading side and is equipped on its loading surface ( 6 ) with at least one profile element ( 10 ) , into which the plates to be charged ( 8 ) are individually inserted, when loading on the frame base ( 7 ) has a position with approximately vertical and in the ejection station ( 11 ) in an overhead tilt position of its loading surface ( 6 ), from which the plates ( 8 ) one after the other, individually from the profile element ( 10 ) of the load basket ( 5 ) in the shaft melting furnace fall. 2. Device according to claim 1, characterized in that the profile element are designed as a pair of spaced parallel toothed rails ( 10 ). 3. Device according to claim 1 or 2, characterized in that the guide rails ( 1 , 2 ) in the discharge station ( 11 ) for carrying out a tilting movement of the load basket ( 5 ) are formed and arranged at about 120 ° to the shaft melting furnace. 4. Device according to claim 2 or 3, characterized in that the tooth profiles ( 9 ) of the toothed rails ( 10 ) relative to each other by each a tooth pitch are shifted such that the plates ( 8 ) of a Ka method package ( 13 ) offset from one another in side tilt positions are. 5. Device according to one or more of claims 2 to 4, characterized in that each tooth gap ( 23 ) of a toothed profile rail ( 10 ) to avoid jamming of tiltable plates ( 8 ) on the rear tooth surface with a curve (R) is formed, the Radius center coincides with the edge ( 14 ) of an opposite, preferably straight tooth surface. 6. Device according to one or more of claims 1 to 5, characterized in that the load basket ( 5 ) has a ver with the loading surface ( 6 ) in a vertical position connected rear wall ( 15 ) which on the inside preferably two parallel at a distance, as supports for inserting a scrap bucket formed rail profiles ( 16 ). 7. Device according to one or more of claims 1 to 6, characterized in that the load cage ( 5 ) below its loading surface ( 6 ) has a subframe arranged at this in the subframe ( 17 ) with guide wheels ( 18 ), on which pulleys ( 19 ) or ( 20 ) for guiding a traction cable ( 4 ) are arranged. 8. Device according to claim 7, characterized in that the traction rope ( 4 ) from one of the highest area of the drop station ( 11 ) on orderly winch ( 21 ) can be driven.