EP4359574A1

EP4359574A1 - Transport apparatus, lining machine, system and method for operating a system of this type

Info

Publication number: EP4359574A1
Application number: EP22734948.7A
Authority: EP
Inventors: Jens Kluge; Martin Pichler; Dominik Straßer; Jakub Szczech; Bernhard VORABERGER
Original assignee: Primetals Technologies Austria GmbH
Current assignee: Primetals Technologies Austria GmbH
Priority date: 2021-06-25
Filing date: 2022-06-20
Publication date: 2024-05-01
Also published as: EP4108786A1; KR20240025630A; WO2022268719A1; US20240209466A1

Abstract

The invention relates to a transport apparatus (105), a lining machine (20), a system (10) and a method for operating such a system, the lining machine comprising a base frame (85), a rail group (90), a feed apparatus (95), a lift apparatus (110) and a working platform (100), the rail group (90) being mechanically fastened to the base frame (85) and the rail group (90) having at least one rail arrangement (150). The lift apparatus (110) has a roller carriage (220) and a lift unit (225) located on the roller carriage (220), the roller carriage (220) being provided on the rail arrangement (150) so as to be movable between an installation position and an operating position. The lift unit (225) is connected to the working platform (100) and is designed to lower the working platform (100) into the converter (35) via the converter opening (45), and the feed apparatus (95) has a roller conveyor (215), one end of which ends at the lift apparatus (110).

Description

Description / Description

Conveyor, bricking machine, system and method of operating such a system

The invention relates to a transport device according to patent claim 1, a lining machine according to patent claim 7, a system according to patent claim 11 and a method for operating such a system according to patent claim 13.

A converter for steel production has a converter vessel with a lining arranged on the inside. The purpose of the lining is to protect the converter vessel, which is made of steel, from the heat of the molten steel in a working space that is delimited by the lining. In a blowing process that reduces the carbon content of the molten iron by blowing in oxygen, the lining is thermally highly stressed and wears out with the number of blowing processes. When a certain number of blowing processes is reached, the lining of the converter must be replaced, otherwise the converter vessel will be damaged by the molten steel, which has a temperature of 1,600 °C to 1,750 °C.

For example, a lining machine is known from US Pat. No. 3,955,685 A. The lining machine has several working platforms. A crane is also provided to lift pallets of refractory material intended for lining a converter into the converter. The work platforms are offset from one another in the circumferential direction of the lining machine. The pallets with the refractory material are lifted centrally with the crane. The lining machine protrudes into the converter via a bottom of the converter. The pallet is transported from the crane to the respective work platform using a roller table.

A lining machine is known from US Pat. No. 3,439,794 A, which is placed on top of the converter. A conveyor belt is provided to transport the refractory material, with which the refractory material is transported from above into the converter.

It is an object of the invention to provide an improved transport device, an improved lining machine, an improved system and an improved method of operating such a system.

This object is achieved by means of a transport device according to patent claim 1, a lining machine according to patent claim 7, a system according to patent claim 11 and solved by a method according to claim 13. Advantageous embodiments are specified in the dependent claims.

It was recognized that an improved transport device can be provided in that the transport device has a first transport space and a first roller table, arranged below the first transport space, for transporting a first item to be transported. The first roller table has a first roller frame, a second roller frame, a first roller assembly with at least two first rollers and a second roller assembly with at least one second roller. The second roll frame is movable in the first roll frame along an axis between a first position and a second position different from the first position. Each of the first rollers is rotatably attached to the first roller frame about a first axis of rotation inclined to the axis. The second roller is arranged between the two first rollers. The second roller is rotatably mounted on the second roller frame about a second axis of rotation that is inclined to the axis and aligned to the first axis of rotation. The first roller has a first rolling surface on the peripheral side and the second roller has a second rolling surface on the peripheral side. In the first position of the second roller frame, the second roller is arranged sunk between the two first rollers and the first roller surface protrudes beyond the second roller surface in the direction of the axis. In the second position, the second roller frame is raised relative to the first position and the second rolling surface protrudes beyond the first rolling surface in the direction of the axis.

This configuration has the advantage that in the first position the first rolling surface rests on the underside of the first item to be transported, for example a pallet or a person on a standing platform, and the first item to be transported can be slid in a first direction on the first roller table in the first transport space is arranged. As a result, the first item to be transported can be removed from the first transport space in the first direction. In the second position, the underside of the second rolling surface rests against the first item to be transported. The first item to be transported is slidably arranged on the first roller frame in a second direction that differs from the first direction. The first item to be transported can be removed from the first transport space along the second direction.

The possibility of removing the goods to be transported from the first transport space in two directions offers the possibility of being able to flexibly provide the working material to be used over a short distance on a working platform of a lining machine.

In a further embodiment, the transport device has at least one removal table and one arranged offset in the circumferential direction to the axis second removal table. The first unloading table has a third roller arrangement with at least one third roller and a third roller frame, the third roller being attached to the third roller frame so as to be rotatable about a third axis of rotation. The second unloading table has a fourth roller arrangement with at least one fourth roller and a fourth roller frame, the fourth roller being rotatably mounted on the fourth roller frame about a fourth axis of rotation. The third axis of rotation is parallel to the first axis of rotation and the fourth axis of rotation is parallel to the second axis of rotation. This configuration has the advantage that in the first position the first item to be transported can easily be pulled out of the first transport space via the first rollers and the third rollers. In the second position, ie when the first item to be transported rests on the second rollers, the first item to be transported can be pulled out in the second direction onto the second unloading table, with the second rollers and the fourth rollers supporting the first item to be transported on the underside. As a result, the first item to be transported can be flexibly removed from the transport space and made available for lining the lining of the converter.

In a further embodiment, the transport device has a housing with a closable first housing opening and a closable second housing opening which is offset relative to the first housing opening in the circumferential direction relative to the axis. The housing encloses the first transport space at least in sections. The first housing opening is between the first unloading table and the first transport space, and the second housing opening is between the second unloading table and the first transport space. The closable Ge housing openings prevents the first transport goods from slipping out of the first transport space via the housing openings during transport of the first transport goods.

In a further embodiment, the transport device has a second transport space and a second roller table, the second roller table being offset along the axis with respect to the first roller table and closing off the first transport space at the top. Furthermore, the second roller table delimits the second transport space on the underside. The second roller table has a fifth roller frame and a fifth roller arrangement with at least one fifth roller, the fifth roller being attached to the fifth roller frame so that it can rotate about a fifth axis of rotation. The fifth axis of rotation is arranged parallel to the first axis of rotation. This configuration has the advantage that the second item to be transported can be pulled onto the first unloading table via the first housing opening from the first transport space. In a further embodiment, the first unloading table has a lifting unit, the lifting unit being connected to the third roller frame. The lifting unit is designed to move the third roller frame between a first removal position and a second removal position that is different from the first removal position. In the first removal position, the first roller arrangement and the third roller arrangement are arranged essentially at the same height. In the second removal position, the fifth roller arrangement and the third roller arrangement are arranged essentially at the same height. This configuration has the advantage that the respective item to be transported can be removed by means of the lifting device both from the first transport space and from the second transport space. Furthermore, the working height for a worker can be adjusted flexibly and ergonomically.

In a further embodiment, the first roller table has an unloading opening, the first transport space being accessible through the removal opening and the first transport item being unloadable through the unloading opening, at least the first roller arrangement and the second roller arrangement being arranged to the side of the removal opening. As a result, the first item to be transported can also be made available below the work platform in a simple way.

An improved lining machine for replacing a lining of a converter through a converter opening can be provided in that the lining machine has a base frame, a rail group, a feed device, an elevator device and a working platform, the rail group being mechanically fastened to the base frame at the top. The group of rails has at least one rail arrangement, with the elevator device having a trolley and an elevator unit arranged on the trolley. The trolley is arranged on the rails so that it can be moved between an assembly position and a working position. The elevator unit is connected to the work platform and is designed to lower the work platform into the converter via the converter opening. The feed device has a roller conveyor that ends on one side at the elevator device. This embodiment has the advantage that due to the modular design of the lining machine, the lining machine can be assembled and dismantled particularly quickly, and the converter can therefore be put back into operation particularly quickly. Also, in a production plant with several converters, the lining of the converters can be successively renewed by means of the lining machine using the lining machine, the lining machine being set up and dismantled again in each case on the converter to be renewed. In a further embodiment, the lining machine has a transport device which is designed as described above. Furthermore, the transport device has a further elevator unit, wherein the further elevator unit is connected to the first roller table and is designed to move the first roller table between the first position and the second position.

In a further embodiment, the further elevator unit has a second winch, the second winch being mechanically connected to the first roller table by means of a second cable. The second wall is configured to wind or unwind the rope to move the first roller table between the first position and the second position. This configuration has the advantage that the lining machine is particularly inexpensive.

In a further embodiment, the rail assembly has a support frame and a leveling device, the support frame being mechanically connected to the base frame. The rail arrangement is arranged on the carrier frame. The leveling device has a first leveling unit.

The leveling unit has at least one first leveling element, which is fastened to the support frame on a first side. On a second side facing away from the first side, the first leveling element is designed to bear against a converter vessel.

The first leveling element is designed to be adjustable in such a way that a distance between the first side and the second side can be changed. For example, the first leveling element can be a hydraulic cylinder, an electric adjustment cylinder, or a manual threaded spindle. By means of the first leveling element, the carrier frame can be aligned in a defined manner, for example in the horizontal direction exactly on the converter vessel, so that an unintentional rolling of the trolley on the rail arrangement is prevented without a brake. In addition, it is ensured that the elevator unit moves coaxially to the vertical axis of the converter. Furthermore, this prevents the masonry machine from tilting, for example in the working position, due to the support of the first leveling element on the second side of the converter vessel. Additionally or alternatively, the leveling device has at least one second leveling unit, the second leveling unit having at least one second leveling element, which is arranged on a third side on the base frame, the second leveling element resting on the connection platform on a fourth side facing away from the third side , wherein the second leveling element is designed to be adjustable in such a way that a distance between the third side and the fourth side can be changed in order to pivot the connection platform relative to the base frame. This allows the connection platform exactly where Converter are aligned and a complete overlap of the working opening with the converter opening is ensured.

An improved system can be provided in that the system includes a converter and a bricking machine. The lining machine is designed as described above. The converter has a converter vessel with a converter opening, the converter vessel enclosing a converter chamber which is open at the top through the converter opening. The base frame is arranged laterally in front of the converter vessel. The rail group is arranged above the base frame and the converter opening. In the assembly position, the elevator device is arranged above the base frame and in the working position above the converter opening. The pull-up device is designed to lower the work platform into the converter space in the working position. This configuration has the advantage that the brick lining can be replaced particularly quickly. Furthermore, the lining machine can be used for several converters.

In a further embodiment, the second side of the leveling element bears against the converter vessel and supports the support frame on the converter vessel. The leveling element is designed to align the support frame with respect to the base frame and the converter vessel. This ensures precise alignment of the rail assembly.

An improved method of operating a system formed as described above can be provided by placing the base frame in front of the converter. The rail group is placed on the base frame and the converter in such a way that the rail group runs at least in sections on the converter opening. The rail group is mechanically reversibly detachably connected to the base frame. The elevator device is placed on the rail assembly in such a way that the trolley is positioned on the rail assembly in the assembly position. The elevator device is moved to the working position. The feeder is positioned on the rail assembly such that one end of the feeder is located at the converter opening and at the elevator. The working platform is lowered into the converter room via the converter opening. This configuration has the advantage that the operating method for operating the system is particularly simple due to the modular structure and brick lining can be started particularly quickly.

In a further embodiment, the first roller table is moved into a third position, with a first item to be transported being fed to the feed device and the first Cargo is moved on the roller conveyor to the first roller table. The first item to be transported is moved on the first roller table into the first transport area. The first roll rolls off the first item to be transported. The elevator device lowers the first roller table to the first position or to the second position. In the first position, the first item to be transported is removed from the first transport space in a first direction. In the second position, the first item to be transported is removed from the first transport space in a second direction. This configuration has the advantage that the first item to be transported can be removed from the first transport space in at least two directions in a particularly flexible manner, as required, so that the distances are particularly short. Furthermore, if a removal table is already occupied, the first item to be transported can be removed from the first transport space onto the second removal table.

In a further embodiment, the first roller table is lowered through an opening in the work platform into a fourth position under the work platform in such a way that the first transport space is arranged under the work platform, with the first transport space under the work platform being loaded with the first goods to be transported and/or is discharged. As a result, the lining material can also be made available quickly underneath the working platform, so that the lining underneath the working platform can be renewed quickly.

In a further embodiment, the carrier frame is arranged on the converter. The leveling element is brought into contact with the converter vessel and the carrier frame is brought into a predefined position with the leveling element. This ensures a defined alignment of the support frame relative to the converter vessel and the base frame.

The invention is explained in more detail below with reference to figures. show:

1 shows a sectional view through a system;

2 shows a perspective view of the lining machine;

3 shows a perspective view of the base frame;

4 shows a perspective representation of the rail group;

FIG. 5 shows a side view of the rail group shown in FIG. 5; 6 shows a perspective representation of a lifting device of the lining machine;

7 shows a section of a perspective view of the working platform and the transport device, the working platform being shown only partially;

8 shows a perspective view of the transport device, numerous components not being shown for reasons of clarity;

9 shows a section of the first roller table shown in FIG. 8 in a variant;

10 shows a detail of a sectional view along a sectional plane A-A shown in FIG. 9 through the first roller table;

FIG. 11 shows the section of the first roller table shown in FIG. 9;

FIG. 12 shows a sectional view along the section plane A-A shown in FIG. 11 through the first roller table;

13 shows a plan view of the working platform and the transport device;

14 shows a plan view of a second roller table of the transport device;

15 shows a perspective view of the transport device on the work platform;

16 shows a flow chart of a method for replacing a lining of a converter of the system;

17 shows a perspective view of the base frame on the converter during a second method step;

18 shows a perspective representation of the system during a third method step; 19 shows a perspective representation of the system during a fourth method step;

20 shows a perspective representation of the system during a fifth method step;

21 shows a perspective view of the elevator device together with the

Transport device and the working platform during a sixth procedural step;

22 shows a perspective representation of the system; and

23 shows a perspective view of the transport device and the work platform in a further development of the system.

In the following figures, reference is made to a coordinate system for easier understanding. The coordinate system has an x-axis (longitudinal direction), a y-axis (transverse direction) and a z-axis (vertical direction). The coordinate system is designed as a legal system by way of example.

1 shows a sectional view through a system 10.

The system 10 has a production facility 15 and a lining machine 20 . The production plant 15 has a building 25 with a building floor 26 and a crane 30 installed in the building 25 (not shown in FIG. 1) and at least one converter 35 . The production plant 15 can in particular have a plurality of converters 35 which are preferably of identical design and are arranged next to one another at a distance in the y-direction. Each of the converters 35 is configured to receive liquid molten iron. In the converter 35, a Linz-Donawitz process, for example, is used to produce molten steel from the iron melt.

The converter 35 has a converter vessel 40 with a converter opening 45, the converter opening 45 being arranged on the converter vessel 40 on the top side. The converter vessel 40 encloses a converter chamber 50, in the converter chamber 50 on the inside adjoining a first inner peripheral side 55 of the converter vessel 40 from a wall 60 of the converter 35 is arranged. With a second inner peripheral side 65, the lining 60 delimits a working space 70, which is at least partially filled with the molten iron or with the molten iron produced from the molten iron during normal operation of the converter 35. The converter vessel 40 tapers in the z-direction toward the converter opening 45. The converter opening 45 can have a circular cross section, for example.

The converter 35 also has a converter frame 75 , the converter vessel 40 being attached to the converter frame 75 . In order to catch gas from the production of the molten steel, the converter 35 has an enclosure 80 . The enclosure 80 has an enclosure opening 81 which is open in FIG. 1 and into which the lining machine 20 engages.

When producing the molten steel from the molten iron, the lining 60 wears out with each oxygen blowing process into the molten iron. The lining 60 must therefore be renewed at regular intervals. In order to renew the lining 60 particularly quickly and to see the converter vessel 40 with a new lining 60, the lining machine 20 described below is used.

2 shows a perspective view of the lining machine 20.

In FIG. 2, the converter 35 is not shown for reasons of clarity. The lining machine 20 has a base frame 85 , a rail assembly 90 , a feeder 95 , a work platform 100 , a transport device 105 and an elevator device 110 .

In FIG. 2, the working platform 100 is lowered into the working space 70 of the converter 35, just as in FIG. In this case, the working platform 100 is arranged laterally offset relative to the base frame 85 and in the z-direction at the height of the base frame 85 with respect to the x-axis. The transport device 105 is arranged on the working platform 100 .

In FIG. 2, the elevator device 110 is arranged in a working position. In the working position, the elevator device 110 is arranged above the converter vessel 40, in particular the converter opening 45. Furthermore, the elevator device 110 can be arranged in an assembly position. In the assembly position (shown in dashed lines in FIG. 2), the elevator device 110 is arranged offset laterally with respect to the converter opening 45 .

The feed device 95 is arranged to the side of the converter opening.

The feed device 95 extends essentially in the y-direction and ends on one side in the area of the converter opening 45 and the elevator device 110. The feed device 95 has a turntable 210 and a roller conveyor 215. The turntable 210 is arranged on a side of the roller conveyor 215 facing away from the elevator device 110 . The turntable 210 can be rotated about the z-axis. The feed device 95 can be supported on the converter frame 75 and/or the housing 80 on the underside.

The roller conveyor 215 and the turntable 210 are arranged in a common plane, which is preferably designed as an xy plane. The roller conveyor 215 and/or the turntable 210 can be set up on the housing 80, for example on a travel level that is higher than the floor 26 of the building. The feeder 95 and the rail assembly 90 are arranged at a similar height above the building floor 26 at.

A second ladder 205 (cf. FIG. 2) can be provided between the working floor 190 and the working platform 100 in order to enable personnel to climb from the working floor 190 to the working platform 100 .

FIG 3 shows a perspective view of the base frame 85.

The base frame 85 is designed as a framework made up of a plurality of profiled beams 115 which are bolted or welded to one another. In the embodiment, four vertical, standing profiled beams 115 are designed as supports 125 . A fastening plate 130 is arranged on the underside of each of the supports 125, for example welded on. The fastening supply plate 130 is connected to the building floor 26, for example. For this purpose, for example, the mounting plate 130 can be screwed to a predefined mounting point of the building floor 26 .

On the supports 125, a support frame unit 135 of the base frame 85 is fastened on the upper side, which is formed truss-like from the profiled beams 115 and in a side view has a trapezoidal configuration. In the x-direction, the support frame unit 135 protrudes beyond the supports 125 on a side facing the converter 35 .

The support frame unit 135 has at least one, preferably three, spaced-apart first attachment points 140 on the upper side, with two of the first attachment points 140 being arranged in the x-direction at the height of the two supports 125 arranged closest to the converter 35 . The other first stop point 140 can be arranged on a side facing away from the converter 35 . For example, the crane 30 can be attached to the first attachment point 140 in order to raise the base frame 85 . Furthermore, on the upper side of the support frame unit 135, the rail group 90 is attached to the support frame unit 135 (cf. FIG. 2). Two profiled beams 115 of the support frame unit 135 that extend in the longitudinal direction and are arranged on the upper side each form a longitudinal beam 141 . Each of the longitudinal beams 141 projects beyond the support 125 on one side in the x-direction, which supports the longitudinal beam 141 on the underside. A stop 142 is arranged laterally on each of the longitudinal members 141 and protrudes beyond the longitudinal member 141 on the upper side.

The support frame unit 135 also has a profile carrier 115 which extends in the y-direction and forms a cross member 143 . The cross member 143 is arranged on top of two supports 125 and is connected to the supports 125 . The cross member 143 connects the two longitudinal members 141 to one another in the y direction. In this case, the cross member 143 is arranged on the side facing away from the converter 35 . On this side, for example, the longitudinal beams 141 are flush with the supports 125 in the x-direction. A first part of a swivel joint 144 is arranged on the upper side in the transverse direction, for example in a central position. The first part of the rotary joint 144 can be designed, for example, as a cylindrical pin 146 extending in the z-direction.

FIG 4 shows a perspective view of the rail group 90.

FIGS. 2 and 4 are explained together below. The rail group 90 has a connecting platform 145, a rail arrangement 150, a working opening 155 (indicated schematically in FIG Leveling device 166 on.

The leveling device 166 has a first leveling unit 170 and a second leveling unit 171 . The first leveling unit 170 serves to align the rail assembly 90 with respect to the converter 35 and the base frame 85 in the z-direction and about the x-axis and y-axis. The second leveling unit 171 serves to align the rail group 90 about the z-axis and pivot the rail group 90 about the z-axis by being mounted on the swivel joint 144.

The connection platform 145 has a support frame 175 . The carrier frame 175 is constructed like a truss from profile steel elements and is connected to the support frame unit 135 in a reversibly detachable manner by means of a mechanical connection. The carrier frame 175 is arranged on the upper side on the support frame unit 135 and projects beyond the support frame unit 135 in the x-direction on the side facing the converter 35 . The support frame 175 supports the connection platform 145 on the support frame unit 135 on the underside. Furthermore, the rail arrangement 150 is fastened on the carrier frame 175 . The rail assembly 150 is partially obscured in FIGS. The rail arrangement 150 has two rails 185 running parallel in the x-direction. A working floor 190 of the connection platform 145 can be arranged laterally to the rail arrangement 150 in order to cover both the support frame 175 and the base frame 85 on the upper side. The working floor 190 can be walked on. For work safety, a fall protection device 195 of the connection platform 145, for example in the form of a railing, can be arranged on the circumference of the support frame 175. In addition, a first ladder 200 is arranged laterally, for example on a side facing away from the converter 35, on the support frame 175, which extends to the working floor 190 in order to allow personnel access from the building floor 26 to the working floor 190 to operate the lining machine 20. The first ladder 200 can be guided further on a support 125 to the building floor 26 on the base frame 85 (cf. FIG. 3).

The working opening 155 is arranged in the working floor 190 and has approximately the same spatial extent as the converter opening 45. The working opening 155 and the converter opening 45 are arranged in alignment with one another.

On a side opposite to the work opening 155 in the x-direction, the counterweight 165 is attached to the support frame 175 . The counterweight 165 may include one or more plates stacked in a stack. The counterweight 165 serves to prevent the rail assembly 90 and the base frame 85 from tilting toward the converter 35 about the y-axis.

The rails 185 are arranged at the greatest possible distance from one another in the y-direction. The distance is selected, for example, at least so far that the work opening 155 is arranged completely between the two rails 185. In the x-direction, the rails 185 extend essentially completely over a maximum total extension of the rail group 90. The second attachment point 160 can be arranged elevated relative to the work floor 190, with the rail arrangement 150 running between the pair of second attachment points 160. The second attachment points 160 are arranged, for example, on the side facing away from the working opening 155 as close as possible to the point of the rail group 90 . The counterweight 165 can be dimensioned in such a way that when the rail group 90 is lifted at the two second attachment points 160, the work floor 190 is kept essentially horizontal.

The swivel joint 144 has a second part which is designed to correspond to the first part and is fastened to the carrier frame 175 . For example, the second part can be Joint receptacle 147 may be formed with a cylindrical opening into which the Zap fen 146 engages in the assembled state (schematically indicated in FIG. 4). The rotary joint 144 supports forces in the z-direction downwards on the crossbeam 144, and on the other hand it enables the support frame 175 to be guided around the z-axis on the base frame when the lining machine 20 is being assembled.

FIG. 5 shows a side view of the rail group 90 shown in FIG.

The first leveling unit 170 is arranged on the carrier frame 175 on the underside on the side facing away from the converter 35 (indicated by dashed lines in FIG. 5). The first leveling unit 170 has at least one first leveling element 245, a storage container 250, a feed pump 255 and a first fluid line 260 and at least one second fluid line 265. The storage container 250 can, for example, be filled with a pressure medium, for example a hydraulic fluid. The storage tank 250 is connected to the feed pump 255 by means of the first fluid line 260 . On the outlet side, the feed pump 255 is connected to the first leveling element 245 by means of the second fluid line 265 . The first leveling element 245 can have, for example, a hydraulic cylinder that can be moved in two directions.

The first leveling element 245 is mechanically connected to the support frame 175 on a first side 270 . A second side 275 can be moved in relation to the first side 270, for example in the z-direction. For example, in order to move the second side 275 out of the first leveling element 245, the feed pump 255 can remove the pressure medium from the storage container 250 and press it into the first leveling element 245 via the first and second fluid lines 260, 265. The second side 275 rests, for example, on the top side of the converter vessel 40 next to the converter opening 45 . By positioning the second side 275 relative to the first side 270 of the first leveling element 245, a position in the z-direction of the support frame 175 and thus with the rail assembly 150 and the work floor 190 can be precisely adjusted so that the rail assembly 150 is essentially horizontal is arranged.

It is pointed out that the first leveling unit 170 can of course also be designed differently. For example, the pressure medium can also be compressed air. Alternatively, an electrically operated first leveling element 245 would also be possible.

In the embodiment, the feed pump 255 is manually operated, for example. Of course, a mechanically driven feed pump 255 would also be possible. In the embodiment, first leveling elements 245 are on the support frame 175, for example at four points since Lich around the work opening 155, which can be actuated individually to define a position of the support frame 175 on the converter ter 35 in the z-direction and around the align the x-axis and the y-axis. Furthermore, the first leveling unit 170 is designed in such a way that the first leveling unit 170 can support forces from the rail group 90, in particular from the elevator device 110, on the converter vessel 40.

The second leveling unit 171 has at least one second leveling element 276 . The second leveling element 276 can have, for example, a hydraulic cylinder that can be moved in two directions. It is pointed out that the second leveling unit 171 can, of course, also be designed differently. For example, the pressure medium can also be compressed air. Alternatively, an electrically operated second leveling element 276 would also be possible. The second leveling element 276 extends between tween the stop 142 (see FIG. 3) and the support frame 175 and is supported on a third side on the stop 142 and on a fourth side on the support frame 175. The second leveling element 276 can be fluidically connected to the feed pump 255 via a third fluid line (not shown) and a valve. By conveying the print medium into the second leveling element 276, a distance between the third side and the fourth side can be changed. This allows the rail assembly 90 to pivot about the z-axis at the pivot 144 relative to the converter 35 and base frame 85 .

FIG 6 shows a perspective view of the elevator device 110.

The elevator device 110 has a trolley 220 and an elevator unit 225 which is arranged on the trolley 220 . The trolley 220 is arranged on the rail arrangement 150 and can be moved along the rail arrangement 150 . The elevator unit 225 is arranged on the trolley 220 .

In addition, the elevator unit 225 can be enclosed by an elevator enclosure 230 . The elevator unit 225 has, for example, at least one first winch 235 which is designed to wind up or unwind one or more first ropes 240, for example via a first deflection 237, and to raise or lower the working platform 100 connected to the first rope 240. Several first ropes 240 can hold the work platform 100 redundantly.

The elevator device 110 can be displaced along the rail arrangement 150 in the x-direction between the working position and the assembly position (cf. FIG. 2). Thereby can the elevator device 110, for example between the two second stop points 160, can be arranged in the assembly position.

FIG. 7 shows a section of a perspective representation of the working platform 100 and the transport device 105, the working platform 100 being shown only partially in FIG.

The work platform 100 has a substantially circular central segment 280, wherein the central segment 280 can also be arranged in and out foldable Bodenab sections 285 (shown in FIG 2), to vary an outer diameter of the work platform 100 diameter. A maximum outer diameter of the middle segment 280 is smaller than a minimum diameter of the converter opening 45. The first cable 240 is attached to the middle segment 280. The first rope 240 is preferably arranged at four suspension points 290 of the middle segment 280, where the suspension points 290 are offset from one another in order to ensure a defined orientation and position of the middle segment 280 of the work platform 100 by means of the ropes 240. In particular, the four suspension points 290 prevent the working platform 100 from tilting.

The transport device 105 has at least a first removal table 295, a second removal table 300, a first roller table 305, a support frame 310, a further elevator unit 315, a support element 320 and preferably a second roller table 325 and a housing 330.

The additional elevator unit 315 can be integrated, for example, in the elevator device 110 in the exemplary embodiment. The other elevator unit 315 has, for example, at least one second winch 236 (see FIG. 6, indicated schematically), which is designed to wind up or unwind at least one second rope 241 (see FIG. 6, indicated schematically) and to connect the second rope 241 associated support frame 310 in example on a second deflection (not shown) to raise or lower. The support frame 310 is connected to the second cable 241 on the upper side.

The first unloading table 295 is offset in the circumferential direction relative to the second unloading table 300 in relation to an axis 335 that runs parallel to the z-axis and can be a central axis of the converter opening 45 . The first unloading table 295 and the second unloading table 300 are arranged radially inward in the circumferential direction, adjoining an outer circumferential side 336 of the center segment 280 . The support frame 310 is essentially cubic and encloses a first transport space 340 and preferably a second transport space 345, the second transport space 345 being arranged above the first transport space 340 in the z-direction. The first transport space 340 is delimited on the underside by the first roller table 305 . The second roller table 325 is arranged in the z-direction between the first transport space 340 and the second transport space 345, so that the first transport space 340 is delimited at the top by the second roller table 325 in the z-direction. On the underside, the second roller table 325 delimits the second transport space 345. It is pointed out that one of the two transport spaces 340, 345, in particular the second transport space 345, and the second roller table 325 can of course be dispensed with. The first roller table 305 and the second roller table 325 are mechanically connected to the support frame 310 . Furthermore, the support frame 310 is movably guided in the z-direction by means of a guide 346 on the first cable 240 .

The housing 330 has at least on the first side face facing the first removal table 295 a first housing opening 350, the first housing opening 350 being closable by means of a first door 355, which is designed, for example, as a lifting door. The first housing opening 350 can adjoin both transport spaces 340, 345 laterally in the z-direction. On a second side surface of the housing 330 arranged for the second removal table 300, the housing 330 has a second housing opening 360, which can be closed by a second door 365.

FIG. 8 shows a perspective view of the transport device 105, numerous components not being shown for reasons of clarity.

In FIG. 8, in particular, the first door 355 and partially the housing 330 are not shown in order to identify the first and second transport space 340, 345. The first and second roller table 305, 325 is shown only schematically.

The first roller table 305 may have a discharge port 366 formed, for example, square in plan view. The unloading opening 366 can also be dispensed with in the first roller table 305 . The unloading opening 366 can be arranged approximately in the middle position of the first roller table 305 and can extend over half the width of the first roller table 305, for example. The discharge opening 366 serves to discharge the first transport space 340 downward, for example.

FIG. 9 shows a section of the first roller table 305 shown in FIG. 8, the unloading opening 366 in the first roller table 305 being omitted in FIG. The first roller table 305 has a first roller frame 370, a second roller frame 375, a first roller assembly 380 and a second roller assembly 385. The first roller arrangement 380 has at least two first rollers 390 . A plurality of first rollers 390 of the first roller arrangement 380 are provided in FIG. 9 and are arranged at a distance from one another in the y-direction. The first rollers 390 are substantially identical in diameter. Each of the first rollers 390 has a first rolling surface 395 on the handling side. The first roller 390 extends essentially in the x-direction over the entire inner width of the first roller frame 370.

The first roller frame 370 is mechanically connected to the support frame 310 on the outside. In plan view, the first roller frame 370 is formed in a substantially rectangular shape. The first roller frame 370 delimits an accommodation space 400 on the inside, in which the second roller frame 375 is accommodated. The first roller frame 370 thus encloses the second roller frame 375 on the peripheral side.

The second roller frame 375 has a first web 405 and a second web 410 arranged opposite one another in the x-direction. The first and second webs 405, 410 are essentially plate-like and each extend in an xz plane. The first web 405 and the second web 410 are each connected to one another by a plurality of first and second transverse webs 415, 420 which are spaced apart from one another in the y-direction. The first and second transverse webs 415, 420 are plate-like and extend essentially in a yz plane. The first and second crossbars 415, 420 are arranged alternately with one another. The first roller 390 is arranged between the first transverse web 415 and the second transverse web 420 . The first roller 390 passes through a passage 430 in each case in the first web 405 and in the x-direction ge opposite in the second web 410 and is rotatable about a first axis of rotation 435 rotating bar on the first roller frame 370 attached. The first axis of rotation 435 extends essentially parallel to the x-axis and is thus perpendicular to the axis 335 .

A number of second rollers 440 are arranged between the second crossbar 420 and a further first crossbar 415 . The second rollers 440 are arranged on a side of the second transverse web 420 that faces away from the first roller 390 . The second rollers 440 are designed to be significantly shorter in their main extension direction than the first roller 390. The second rollers 440 are attached to the second and further first transverse web 420, 415 so as to be rotatable about a second axis of rotation 445. The second axis of rotation 445 extends essentially in the y-direction and is therefore perpendicular to the first axis of rotation 435 and aligned with axis 335. The second roller 440 has a second rolling surface 450 on the circumference. The second rolling surface 450 is configured to run in a cylindrical manner around the second axis of rotation 445 .

The passage 430 can be formed in the form of a slot in the z-direction in the web 405, 410 duri fend. The first roller 390 can be fastened, for example, between the first rolling surface 395 and the first roller frame 370 in the manner of a bolt in a partial section 455 of the first roller 390, so that the passage 430 in conjunction with the partial section 455 forms a link guide.

In the z-direction along the axis 335, the second roller frame 375 can be moved relative to the first roller frame 370 between a first position and a second position. The first roller frame 370 guides the second roller frame 375 in the x and/or y direction in the movement between the first position and the second position. In the first position, as shown in FIG. 9, the second roller frame 375 is lowered in the z-direction relative to the second position. In the first position, the top line of the first rolling surfaces 395 protrudes over the second rollers 440 with the second rolling surface 450.

On the underside between the transport device 105 and the central segment 280 is at least one, preferably a plurality of supporting elements 320 arranged at a defined distance from one another. In the first position, the second roller frame 375 is arranged at a distance from the support element 320 . As a result, the second roller frame 375 is lowered and rests in the first roller frame 370 . For this purpose, in particular the first and second webs 405, 410 can engage in a groove provided for this purpose in the first roller frame 370 and strike. In the embodiment shown in FIG. 8, for example, the first and second roller assemblies 380, 385 are arranged laterally next to the removal opening 366.

FIG. 10 shows a sectional view along a sectional plane A-A shown in FIG. 9 through the first roller table 305.

A first item to be transported 460 is introduced into the first transport space 340 . The first item to be transported 460 can be, for example, one or more pallets with bricks. People can also be transported instead of pallets. The first transport item 460 is indicated schematically in FIG. 10 as a pallet with bricks. The first item to be transported 460 has a first underside 465 which essentially extends in an xy plane. The first underside 465 can be flat or at least partially flat like a pallet. In the first position of the second roller frame 375, the first rollers 390 relative to the second rollers 440 are raised. The first rolling surface 395 has a first rolling contact 470 with the first underside 465 . From a theoretical point of view, the first rolling contact 470 is linear and runs essentially in the x-direction. The first transport item 460 is carried by the first roller frame 370 by the first rolling contact 470 . In this case, only a force F from the first item to be transported 460 is supported via the first rollers 390 on the first roller frame 370 . The force F can be further transmitted from the first roller frame 370 to the support frame 310 . Due to the rotatable mounting of the first rollers 390 about the first axis of rotation 435, the first item to be transported 460 can be moved onto the first roller table 305 in the y-direction. A movement in the x-direction is blocked by the first transport item 460 resting on the first roller 390 and the support of the first roller 390 in the axial direction on the first roller frame 370 .

FIG. 11 shows the section of the first roller table 305 shown in FIG. 9.

In the second position, the second roller frame 375 rests on the support element 320 and is lifted by the support element 320 (hidden in FIG. 11). As a result, in FIG. 11 the second roller frame 375 is in the second position and is raised relative to the first position (cf. FIG. 9). In the second position, the second rolling surface 450 of the second rollers 440 thus projects beyond the first rolling surface 395 of the first roller 390.

FIG. 12 shows a sectional view along the section plane A-A shown in FIG. 11 through the first roller table 305.

In the second position, the second rolling surface 450 of the second roller 440 is in contact with the first underside 465 of the first transport item 460 in a second rolling contact 475. From a theoretical point of view, the second rolling contact 475 is linear or, in reality, the second rolling contact 475 has a small extent in the x-direction.

The first rolling surface 395 of the first roller 390 is spaced from the first lower side 465 respectively. In the second position, the first transport item 460 can be moved in the x-direction on the first roller table 395 due to the rotatable mounting of the second roller 440 about the second axis of rotation 445.

Falling out of the first item to be transported 460 from the first transport space 340 is prevented in that when the first transport space 340 moves, the doors 355, 365 are closed, thereby preventing the first transport item 460 from sliding out through the doors 355, 365.

In addition, further securing means can be provided in order to block a movement of the first item to be transported 460 on the first roller table 305.

The force F is transmitted from the second roller 440 via the bearing of the second roller 440 to the first and second transverse webs 415, 420. From there, the force F is transmitted via the first and second webs 405, 410 to the support element 320 to the central web ment 280 transferred.

FIG 13 shows a plan view of the working platform 100 and the transport device 105.

In the embodiment, for example, the transport device 105 has, in addition to the first removal table 295, a third removal table 480 arranged opposite in the y-direction. The third unloading table 480 is arranged identically to the first unloading table 295 . In addition, the transport device 105 also has a fourth removal table 485 arranged opposite the second removal table 300 in the x-direction. The fourth removal table 485 is designed identically to the second removal table 300 .

The first to fourth unloading tables 295, 300, 480, 485 can also be configured identically to one another. The unloading tables 295, 300, 480, 485 are arranged, for example, around the first roller table 305 with an angular offset of approximately 90° in the circumferential direction around the axis 335. The first removal table 295 has a third roller frame 490 and a third roller arrangement 495 made up of third rollers 500 , with the third rollers 500 each being mounted such that they can rotate about a third axis of rotation 505 . The third axis of rotation 505 is aligned parallel to the x-axis and thus runs parallel to the first axis of rotation 435.

The second unloading table 300 is arranged on the working platform 100 rotated by 90° relative to the first unloading table 295, for example. The second unloading table 300 has a fourth roller frame 510 and a fourth roller arrangement 515 with at least one fourth roller 520, which is rotatably mounted about a fourth axis of rotation 525 on the fourth roller frame 510 in each case. The fourth axis of rotation 525 is aligned parallel to the second axis of rotation 445 . The first housing opening 350 and the first door 355 are each arranged between the first transport space 340 and the first unloading table 295 and the first transport space 340 and the third unloading table 480 . The second housing opening 360 and the second door 365 are arranged between the first transport space 340 and the second removal table 300 and the fourth removal table 485, respectively.

If the first roller table 305 is in the first position and the first door 355 is opened, the first item to be transported 460 can be pulled out of the first transport frame onto either the first removal table 295 or the third removal table 480 . The first item to be transported 460 can thus be stored on the first unloading table 295 or the third unloading table 480 and/or the first item to be transported 460 can be unloaded from the first and/or third unloading table 295, 480, for example in order to renew the lining 60. In particular, the first item to be transported 460 may include bricks of the lining 60 .

If, as shown in FIGS. 11 and 12, the first roller table 325 is moved into the second position, then in the second position the support element 320 raises the second roller frame 375 relative to the first position relative to the first roller frame 370. The second rollers 440, as shown in FIG. 12, come into contact with the first underside 465 and the first item to be transported 460 can be pulled from the first roller table 305 in the x direction instead of in the y direction. For this purpose, for example, the second door 365 is opened and the first transport item 460 is pulled from the first transport space 340 onto the second removal table 300 or onto the fourth removal table 485 in the x-direction.

The four removal tables 295, 300, 480, 485 arranged on the work platform 100 make it possible to provide sufficient lining material so that the bricklayers’ waiting time for lining the lining 60 is kept to a minimum and there is always sufficient material, in particular stones, available to Lining 60 to produce.

14 shows a plan view of the second roller table 325 of the transport device 105.

The second roller table 325 is designed similarly to the first to fourth removal tables 295, 300, 480, 485 and, in addition to a fifth roller frame 530, has a fifth roller arrangement 535 with fifth rollers 540, which can be rotated on the fifth roller frame 530 about a fifth axis of rotation 545 are rotatably mounted. The fifth axis of rotation 545 is aligned parallel to the x-axis and the first axis of rotation 435 . 15 shows a perspective view of the transport device 105 on the work platform 100.

In addition, the first removal table 295 and/or the third removal table 480 can have a lifting unit 550, the lifting unit 550 being designed as a scissor lift, for example. The lifting unit 550 can move the first removal table 295 between a first removal position and a second removal position, with a third rolling surface 555 of the third roller 500 having a third rolling contact 560 on the first underside 465 of the first transport item 460 in the first removal position. The third rolling contact 560 and the first rolling contact 470 can be arranged in a common xy plane.

In order to remove a second item to be transported 565 from the second transport space 345, the lifting unit 550 can raise the first removal table 295 so that the first removal table 295 is arranged essentially at the same height as the second roller table 325. This makes it particularly easy to remove the second item to be transported 565 are pulled out of the second transport space 345, with the third rolling surface 555 rolling on a second underside of the second item 565 to be transported. The first and second items to be transported 460, 565 can, for example, be designed to be identical to one another.

Furthermore, the goods to be transported 460, 565 stored on the first removal table 295 can be lifted to an ergonomic working height by means of the lifting unit 550. In particular, the first or second item to be transported 460, 565 can be raised or lowered accordingly, for example, so that the blocks can be unloaded from the first unloading table 295 at the ideal working height, and the lining 60 can thus be renewed.

Likewise, as shown in FIG. 15, the third removal table 480 can also be provided with the lifting unit 550. As a result, the second item to be transported 565 can be removed from the second transport space 345 on both sides in the y-direction on two sides of the working platform 100 .

As a result, a large amount of material, for example for lining the lining 60, can be stored on the working platform 100 particularly quickly and the lining 60 can thus be renewed with a large number of people. As a result, the lining 60 can be renewed particularly quickly. Furthermore, the paths from the removal table 295, 300, 480, 485 to the lining 60 are particularly short. This further reduces the working time for creating the lining 60 . 16 shows a flowchart of a method for replacing lining 60. FIG. 17 shows a perspective view of base frame 85 on converter 35 during a second method step 610. FIG. 18 shows a perspective view of system 10 during a third method step 615. FIG a perspective view of the system 10 during a fourth method step 620. FIG. 20 shows a perspective view of the system 10 in a fifth method step 625. FIG Method step 630. FIG. 22 shows a perspective representation of the system 10.

In a first method step 605, the base frame 85, the rail group 90, the elevator device 110, the feed device 95 and the transport device 105 and the working platform 100 are provided.

In the second method step 610 (see FIG. 17), after the working chamber 70 of the converter vessel 40 has been emptied and cooled, the housing opening 81, which is normally closed during operation of the converter 35, is opened. Furthermore, the base frame 85 is placed on the building floor 36 of the building 25 on the side of the converter 35 facing the enclosure opening 81 in the second method step 610 . To transport the base frame 85 from a storage station to the converter 35, the crane 30 can be suspended from the first attachment point 140 and the crane 30 transports the base frame 85 holding it at the first attachment point 140 to the front of the converter 35 Enclosure opening 81 facing side positioned in front of the converter vessel 40 (looking in the x-direction). Furthermore, in the second method step 610, the fastening plate 130 is fastened, for example, to the building floor 26 of the building 25 in a reversibly detachable manner. The base frame 85 is oriented to the converter vessel 40 in such a way that the support frame unit 135 engages in the housing opening 81 .

In a third method step 615 (cf. FIGS. 18 and 19), the rail group 90 is transported from the storage area by means of the crane 30 and placed on top of the support frame unit 135 in such a way that the counterweight 165 is on a side of the rail group 90 that faces away from the housing opening 81 is arranged. The rail group 90 protrudes into the housing opening 81 and is oriented in such a way that the working opening 155 and the converter opening 45 are aligned with one another (cf. FIG. 19). In a fourth method step 620 (cf. FIG. 20), the rail group 90 is leveled and aligned by the leveling device 166 . The second side 275 of the first leveling element 245 rests on the converter vessel 40 . The second side 275 is moved out of the first leveling element 245 until the rail group 90, in particular the rail arrangement 150, is aligned horizontally and the converter opening 45 is arranged between the two rails 185.

If this is the case, the rail group 90 is reversibly detachably connected to the support frame unit 135 by means of the first connection. By sitting and leveling the rail group 90 on the converter vessel 40 and fastening it to the base frame 85, the rail group 90 can be prevented from tipping over or slipping off the converter 35.

In a fifth method step 625 following the fourth method step 620 , the feed device 95 is positioned next to the working opening 155 . The turntable 210, which is arranged on the side facing away from the work opening 155 of the feeder 95, can be arranged, for example, on the housing 80 or the converter frame 75 of the converter 35. Furthermore, the feed device 95 is leveled like the rail group 90, but in relation to both the converter vessel 40 and the housing 80.

In a sixth method step 630 following the fifth method step 625, the elevator device 110 and the work platform 100 and transport device 105 connected to the elevator device 110 are provided and placed on the rail group 90 in the assembly position (cf. FIG. 22). In the assembly position, however, the elevator device 110 is arranged at a distance from the converter opening 45 . When the working platform 100 and the transport device 105 are provided, the working platform 100 is positioned directly underneath on the elevator device 110 . The first and second transport space 340, 345 have been drawn into the elevator device 110 (cf. FIG. 21).

In a seventh method step 635 following the sixth method step 630, the elevator device 110 is moved together with the working platform 100 and the transport device 105 from the assembly position along the x-axis into the working position (cf. FIG. 22).

After reaching the working position, the first rope 240 is unwound in an eighth method step 640 by means of the first winch 235 and the working platform 110 is retracted into the working room 70 via the converter opening 45 on the top side. In FIG 22 is there the working platform 100 is shown at different working heights. The height position of the work platform 100 in the work space 70 can be variably changed by the first winch 235 and the first cable 240 .

In a ninth method step 645 following the eighth method step 640, the first and second goods to be transported 460, 565 are delivered, for example by means of a forklift. The first item to be transported 460 is placed on the turntable 210 . The orientation of the first item to be transported 460 can be aligned as desired on the turntable 210 . The first transport item 460 is pushed into the first transport space 340 via the opened first door 355 via the turntable 210 and the roller conveyor 215 . The second roller frame 375 is in the first position, so that the second rollers 440 are lowered and the first transport item 460 can be pushed into the first transport space 340 in the y-direction.

In a tenth step 650 following the ninth step 645, the support frame 310 and the first roller table 305 are lowered by the further elevator unit 315 until the first roller table 305 and the roller conveyor 215 are essentially arranged in a common plane. The first roller table 305 is in a third position, which is above the first and second position. The first housing opening 350 is open so that the first item to be transported 460 can be pushed from the roller conveyor 215 onto the first roller table 305 into the first transport space 340 . Analogously, the second roller table 325 can be lowered by the additional elevator unit 315 until the second roller table 325 and the roller conveyor 215 are arranged essentially in a common plane. As a result, the second transport item 565 can be pushed onto the second roller table 325. As a result, the transport device 105 is loaded with two goods to be transported 460, 565, for example two pallets of lining bricks.

In an eleventh method step 655 following the tenth method step 650 , the support frame 310 and the roller tables 305 , 325 attached thereto are lowered in the direction of the work platform 100 by the further elevator unit 315 . Depending on the loading of the first to fourth unloading tables 295, 300, 480, 485, the first roller table 305 is brought into either the first or second position by the second wall 236 and either the first door 355 or the second door 365 is opened, so that the first or second housing opening 350, 360 is continuous. The first item to be transported 460 is pushed onto one of the four removal tables 295, 300, 480, 485, for example onto the second removal table 300, via one of the two housing openings 350, 360. Likewise, the first or third unoccupied removal table 295, 480 is raised by the respective associated lifting unit 550 so far that the first or third removal table 295, 480 are arranged essentially at a common height with the second roller table 325. For example, the third removal table 480 can be raised and the second item to be transported 565 can be brought from the second transport space 345 to the third removal table 480 .

After the goods to be transported 460, 565 have been removed, either the first and/or second transport space 340, 345 can be filled with waste, for example, or can be drawn up empty through the work opening 155 into the elevator device 110. The height position of the work platform 100 is retained and only the supporting frame 310 is drawn into the elevator device 110 .

The eighth to eleventh method steps 640 to 655 are repeated until the lining 60 is lined with the material for the lining 60 transported in the first and second transport space 340, 345. If, for example, as explained above, the first and third removal tables 295, 480 are occupied by the first and second transport goods 460, 565, the transport goods 460, 565 transported in the first and second transport space 340, 345 can be removed, for example, by opening the second door 365 from the second housing opening 360 onto the second and fourth unloading tables 300, 485, respectively.

After completion of the lining 60, the lining machine 20 is dismantled in the reverse order of the first to seventh method steps 605-635 and the converter 35 is put back into operation. The method can be repeated for the same converter 35 or for another converter 35 in order to renew the lining of the same converter 35 with the lining machine 20 or to renew the lining of the other converter 35.

23 shows a perspective view of the transport device 105 and the work platform 100 in a further development of the system 10.

In the development, the support frame 310 can be formed in two parts. The Tragrah men 310 has an inner frame 720 and an outer frame 725, wherein the outer frame 725 leads to the inner frame 720 by means of a guide means in the xy direction. The inner frame 720 is connected to the second cable 241 . In a stop position of the guide means, in which it is between the first and third Po position of the first roller table 305, the inner frame 720 carries the outer frame 725, which in turn is guided over the guide 346 on the first cable 240. The further elevator unit 315 can lower the supporting frame 310 far enough into a fourth position that the inner frame 720 protrudes beyond the working platform 100 on the underside. In the fourth position, the support frame 310 is located below the first through third positions. The outer frame 725 sits on the work platform 100 between the first position and the fourth position, and the guide means guides the inner frame 720 in the xy direction through an opening 700 in the work platform 100 as it is lowered from the first position to the fourth position. In order to prevent the second roller frame 375 from sitting on the support element 320 when the inner frame 720 is lowered through the opening 700, the support element 320 can, for example, be removed, for example folded down. The first roller frame 370 is mechanically connected to the inner frame 720 . Preferably, at least the first transport space 340, preferably both transport spaces 340, 345 below the work platform 100 is fully accessible. As a result, the transport space 340, 345 can be unloaded or loaded below the work platform. As a result, for example when bricking on a base of the converter 35, the lining material can also be provided quickly and reliably underneath the working platform 100, so that the lining can be created particularly quickly. As a result, the time required to replace the lining 60 is kept particularly short.

Reference List

10 systems

15 production facility

20 bricking machine

25 buildings

26 building floor

30 crane

35 converters

40 converter vessel

45 converter opening

50 converter room

55 first inner peripheral side

60 lining

65 second inner peripheral side

70 workspace

75 converter rack

80 enclosure

81 enclosure opening

85 base frame

90 rail group

95 feeder

100 work platform

105 transport device

110 Elevator Facility

115 profile beam

120 brace

125 support

130 mounting plate

135 support frame assembly

140 first anchor point

141 longitudinal members

142 stop

143 cross member

144 pivot

145 connection platform

146 cones

147 joint mount

150 rail assembly 155 working opening

160 second anchor point

165 counterweight

170 first leveling unit

171 second leveling unit

175 carrier frame

185 rail

190 work floor

195 Fall Protection

200 first ladder

205 second ladder

210 turntable

215 roller conveyor

220 trolleys

225 elevator unit

230 elevator enclosure

235 first winds

236 second turns

237 first deflection

240 first rope

241 second rope

245 first leveling element

250 storage containers

255 feed pump

260 first fluid line

265 second fluid line

270 first page

275 second page

276 second leveling element

280 center segment

285 ground sections

290 suspension point

295 first unloading table

300 second unloading table

305 first roller table

310 support frame

315 more elevator unit

320 support member

325 second roller table 330 case

335 axis

336 outer peripheral side

340 first transport room

345 second transport room

346 leadership

350 first case opening

355 first door

360 second case opening

365 second door

366 discharge port

370 first roll frame

375 second roll frame

380 first roll assembly

385 second roller assembly

390 first roll

395 first rolling surface

400 recording space

405 first jetty

410 second bridge

415 first cross bar

420 second cross bar

425 third cross bar

430 execution

435 first axis of rotation

440 second roll

445 second axis of rotation

450 second rolling surface

455 section

460 first cargo

465 first base

470 first rolling contact

475 second rolling contact

480 third unloading table

485 fourth unloading table

490 third roll frame

495 third roller arrangement

500 third roll

505 third axis of rotation 510 fourth roller frame

515 fourth roller arrangement

520 fourth roll

525 fourth axis of rotation

530 fifth roll frame

535 fifth reel assembly

540 fifth roll

545 fifth axis of rotation

550 lifting unit

555 third rolling surface

560 third rolling contact

565 second cargo

605 first process step

610 second process step

615 third process step

620 fourth method step

625 fifth method step

630 sixth method step

635 seventh method step

640 eighth method step

645 ninth method step

650 tenth process step

655 eleventh method step

700 opening

720 inner frames

725 outer frames

F force

Claims

Patent Claims / Patent Claims

1. Transport device (105) for a lining machine (20),

- wherein the transport device (105) has a first transport space (340) and a first roller table (305) arranged below the first transport space (340) for transporting a first transport item (460),

- wherein the first roller table (305) has a first roller frame (370) and a first roller assembly (380) with at least two first rollers (390), characterized in that

- the first roller table (305) has a second roller frame (375) and a second roller arrangement (385) with at least one second roller (440),

- the second roller frame (375) being arranged in the first roller frame (370) along an axis (335) so that it can be moved between a first position and a second position which is different from the first position,

- wherein each of the first rollers (390) is rotatably mounted on the first roller frame (370) about a first axis of rotation (435) oriented inclined to the axis (335),

- the second roller (440) being arranged between the two first rollers (390),

- wherein the second roller (440) is rotatably mounted on the second roller frame (375) about a second axis of rotation (445) which is inclined to the axis (335) and to the first axis of rotation (435),

- wherein the first roller (390) has a first rolling surface (395) on the peripheral side and the second roller (440) has a second rolling surface (450) on the peripheral side,

- wherein in the first position of the second roller frame (375) the second roller (440) is arranged sunk between two first rollers (390) and the first rolling surface (395) projects over the second rolling surface (450) in the direction of the axis (335). ,

- wherein in the second position the second roller frame (375) is raised relative to the first position and the second rolling surface (450) projects beyond the first rolling surface (395) in the direction of the axis (335).

2. Transport device (105) according to claim 1,

- having a first removal table (295) and a second removal table (300) arranged offset in the circumferential direction to the axis (335),

- wherein the first removal table (295) has a third roller arrangement (495) with at least one third roller (500) and a third roller frame (490), - wherein the third roller (500) is rotatably mounted on the third roller frame (490) about a third axis of rotation (505),

- wherein the second removal table (300) has a fourth roller arrangement (515) with at least one fourth roller (520) and a fourth roller frame (510),

- wherein the fourth roller (520) is rotatably mounted on the fourth roller frame (510) about a fourth axis of rotation (525),

- wherein the third axis of rotation (505) parallel to the first axis of rotation (435) and the fourth axis of rotation (525) parallel to the second axis of rotation (445) is aligned rich switched.

3. Transport device (105) according to claim 2,

- having a housing (330) with a closable first housing opening (350) and a closable second housing opening (360) which is offset relative to the first housing opening (350) in the circumferential direction with respect to the axis (335),

- wherein the housing (330) encloses the first transport space (340) at least in sections,

- Wherein the first housing opening (350) between the first unloading table (295) and the first transport space (340) and the second housing opening (360) between the second unloading table (300) and the first transport space (340) is arranged.

4. Transport device (105) according to any one of the preceding claims,

- Having a second transport space (345) and a second roller table (325),

- wherein the second roller table (325) along the axis (335) is arranged offset to the first roller table (305) and closes off the first transport space (340) on the top side and the second transport space (345) on the underside borders,

- wherein the second roller table (325) has a fifth roller frame (530) and a fifth roller arrangement (535) with at least one fifth roller (540),

- wherein the fifth roller (540) is rotatably mounted on the fifth roller frame (530) about a fifth axis of rotation (545),

- Wherein the fifth axis of rotation (545) is arranged parallel to the first axis of rotation (435).

5. Transport device (105) according to claim 4 and claim 2, - wherein the first unloading table (295) has a lifting unit (550),

- wherein the lifting unit (550) is connected to the third roller frame (490) and is designed to move the third roller frame (490) between a first removal position and a second removal position that is different from the first removal position,

- wherein in the first removal position the first roller arrangement (380) and the third roller arrangement (495) are arranged essentially at the same height,

- wherein in the second removal position the fifth roller assembly (535) and the third roller assembly (495) are net angeord substantially at the same height.

6. Transport device (105) according to any one of the preceding claims,

- wherein the first roller table (305) has a discharge opening (366),

- the first transport space (340) being accessible from below through the removal opening (366) and the first transport item (460) being able to be unloaded through the removal opening (366),

- At least the first roller arrangement (380) and the second roller arrangement (385) being arranged to the side of the removal opening (366).

7. Lining machine (20) for replacing a lining (60) of a converter (35) through a converter opening (45),

- wherein the lining machine (20) has a base frame (85), a rail group (90), a feed device (95), an elevator device (110) and a working platform (100),

- wherein the rail assembly (90) is mechanically fastened to the base frame (85),

- wherein the rail assembly (90) has at least one rail assembly (150),

- wherein the elevator device (110) has a trolley (220) and an elevator unit (225) arranged on the trolley (220),

- wherein the trolley (220) is arranged to be movable on the rail arrangement (150) between an assembly position and a working position,

- wherein the elevator unit (225) is connected to the working platform (100) and designed to lower the working platform (100) into the converter (35) via the converter opening (45),

- wherein the feed device (95) has a roller conveyor (215) which ends on one side at the elevator device (110).

8. lining machine (20) according to claim 7,

- having a transport device (105) according to any one of claims 1 to 6,

- wherein the transport device (105) has a further elevator unit (315),

- The further elevator unit (315) being connected to the first roller table (305) and configured to move the first roller table (305) between the first position and the second position.

9. lining machine (20) according to claim 8,

- wherein the further elevator unit (315) has a second winch (236),

- the second winch (236) being mechanically connected to the first roller table (305) by means of a second cable (241),

- wherein the second winch (236) is adapted to roll up or down the second cable (241) in order to move the first roller table (305) between the first position and the second position.

10. lining machine (20) according to one of claims 7 to 9,

- wherein the rail group (90) has a support frame (175) and a leveling device (166),

- wherein the support frame (175) is mechanically connected to the base frame (85),

- the rail arrangement (150) being arranged on the carrier frame (175),

- wherein the leveling device (166) has at least one first leveling unit (170),

- Wherein the first leveling unit (170) has at least one first leveling element (245) which is fastened on a first side (270) to the carrier frame (175),

- wherein on a second side (275) facing away from the first side (270), the first leveling element (245) is designed to bear against a converter vessel (40),

- The first leveling element (245) being adjustable in such a way that a distance between the first side (270) and the second side (275) can be changed; and or

- wherein the leveling device (166) has at least one second leveling unit (171), - Wherein the second leveling unit (170) has at least one second leveling element (276) which is arranged on a third side on the base frame (85),

- wherein the second leveling element (276) rests against the connecting platform (90) on a fourth side facing away from the third side,

- The second leveling element (276) being adjustable in such a way that a distance from the third side to the fourth side can be changed in order to pivot the connecting platform (90) relative to the base frame (85).

11. System (10) comprising a converter (35) and a lining machine (20) according to one of claims 7 to 10,

- wherein the converter (35) has a converter vessel (40) with a converter opening (45),

- the converter vessel (40) enclosing a converter space (50) which is open at the top through the converter opening (45),

- wherein the base frame (85) is arranged laterally in front of the converter vessel (40),

- wherein the rail group (90) is arranged above the base frame (85) and the converter opening (45),

- the elevator device (110) being arranged above the base frame (85) in the assembly position and above the converter opening (45) in the working position,

- The elevator device (110) being designed to lower the working platform (100) into the converter space (50) in the working position.

12. System (10) according to claim 11 and claim 10,

- wherein the second side (275) of the first leveling element (245) rests against the converter vessel (40) and supports the carrier frame (175) on the converter vessel (40),

- The first leveling element (245) being designed to align the carrier frame (175) with respect to the base frame (85) and the converter vessel (40).

13. Method for operating a system (10) according to one of claims 11 or 12,

- wherein the base frame (85) is set up in front of the converter (35),

- the rail group (90) being placed on the base frame (85) and the converter (35) in such a way that the rail group (90) runs at least in sections along the converter opening (45), - wherein the rail group (90) is mechanically reversibly detachably connected to the base frame (85),

- wherein the elevator device (110) is placed on the rail assembly (90) in such a way that the trolley (220) is positioned on the rail assembly (150) in the assembly position,

- wherein the elevator device (110) is moved into the working position,

- wherein the feed device (95) is positioned on the rail group (90) in such a way that one end of the feed device (95) is arranged on the converter opening (45) and the elevator device (110),

- Wherein the working platform (100) is lowered over the converter opening (45) into the converter space (50).

14. The method according to claim 13 with a lining machine (20) according to one of

claims 8 to 10,

- wherein the first roller table (305) is moved to a third position,

- wherein the first item to be transported (460) is fed to the feed device (95) and the first item to be transported (460) is moved on the roller conveyor (215) to the first roller table (305),

- wherein the first transport item (460) is moved on the first roller table (305) into the first transport space (340),

- the first roller (390) rolling on the first item to be transported (460),

- wherein the elevator device (110) lowers the first roller table (305) into the first position or into the second position,

- wherein in the first position the first item to be transported (460) is removed from the first transport space (340) in a first direction, or

- wherein in the second position the first item to be transported (460) is removed from the first transport space (340) in a second direction.

15. The method according to claim 13 or 14 and a lining machine (20) according to any one of claims 8 to 10,

- wherein the first roller table (305) is lowered through an opening (700) of the work platform (100) into a fourth position under the work platform (100) such that the first transport space (340) is arranged below the work platform (100),

- The first transport space (340) being loaded and/or unloaded below the work platform (100) with the first goods to be transported (465).