RU111902U1 - LIFTING AND ROTARY DEVICE FOR FURNACE COVER, AND ALSO FURNACE INSTALLATION AND METHOD FOR LOADING AND MAINTENANCE OF SUCH FURNACE INSTALLATION - Google Patents

Abstract

1. A lifting and turning device (1, 1 ') for a cover (11) of a furnace, in particular an electric arc furnace, comprising a guide body (2) with a base plate (2a), at least one slide plate (2b, 2b ′), at least one centering protrusion (2c) and a vertical hole (2d), installed inside the vertical hole (2d) in the guide body (2) with the possibility of raising and lowering the lifting pin (3), the lifting cylinder (4) for raising and lowering the lifting trunnion (3), which, on the one hand, is pivotally connected to the lifting trunnion (3) and, on the other hand, pivotally with the base plate (2a), and a guide frame (5) for supporting the cover (11), which has support arm (5a), while the upper end of the support arm (5a) is intended to be connected to the cover (11) and additionally has a lifting protrusion (5b) containing a lifting eyelet (5c), which is designed to engage with the opposite lifting cylinder ( 4) the end of the lifting trunnion (3), wherein the support arm (5a) at its other end has at least one pivotally mounted sliding roller (6, 6 ′), the outer surface (6b, 6b ′) of which, when lifting and lowering the lifting cylinder (4), rolls at least at least one sliding plate (2b, 2b '), and at the same time contains at least one elongated centering groove (6c) for accommodating at least one centering protrusion (2c), which can be moved when lifting and lowering the lifting cylinder (4) inside at least one centering groove (6c). ! 2. A device according to claim 1, which comprises a length-changing sealing device (7) secured

Description

2420-177462RU / 018

LIFTING AND ROTARY DEVICE FOR FURNACE COVER, AND ALSO FURNACE INSTALLATION AND METHOD FOR LOADING AND MAINTENANCE OF SUCH FURNACE INSTALLATION

The invention relates to a lifting and turning device for a furnace lid, in particular an electric arc furnace, as well as a furnace unit provided with it, in particular an electric arc furnace installation. In addition, a utility model relates to a method for loading and maintaining such a furnace plant.

In order to load the furnace, in particular the electric arc furnace, while scrap is mainly used as the material used, the casing of the electric arc furnace, usually closed during the melting process, is opened. To do this, the shoulders with the electrodes attached to them are lifted with the electrodes fixed on them, as well as the furnace lid and rotated to the side by turning movement. This usually happens by rotating these nodes around a common point of rotation. The material used is introduced into the furnace casing, the units are turned back to their original position and lowered again, so that the furnace casing is closed again and the next melting process can begin.

Lifting and turning devices of the type indicated at the beginning are already known, among other things, from DE 35 14 293 A1. It is indicated here that the device comprises a lifting and lowering carrier link that grips the edge of the lid. The lifting device is mounted on a frame adjacent to the furnace casing, which can be rotated laterally. In the lowered position, the carrier link is separated from the edge of the lid. When lifting, it enters the lifting eye at the edge of the lid, which is consistent with the shape of the carrier link.

EP 0 077 319 A1 describes an electric furnace with a lifting mechanism for activating a furnace lid. The lifting mechanism has a fixed support pin and a lifting device located inside the support pin, which drives the lifting column, which is designed to engage and disengage from the furnace lid. The lifting column is guided on the support pin with the possibility of axial shift using the upper and lower bearings. The lifting device, in particular in the form of a hydraulic cylinder, is pivotally connected, on the one hand, to the lifting column and, on the other hand, pivotally to a fixed part of the installation, such as a foundation or support journal.

Using such a lifting and turning device, large masses are usually moved, while large axial and vertical forces are generated in the rotary and guide bearings of the lifting and turning device. This leads to a heavy load of the material and makes it necessary to carry out repeated maintenance work and strict control. So, for perfect lifting and lowering of the cover, the guide bearings must not exceed certain tolerances, in order to prevent jamming or jamming of the guide and / or the lifting cylinder used.

The objective of the utility model is the creation of a particularly demanding little maintenance of the lifting and swiveling device and the furnace installation provided with it. In addition, the objective of the utility model is to create a suitable method for loading and maintaining such a furnace plant.

The problem is solved for a lifting and rotary device for the lid of the furnace, in particular, an electric arc furnace in that it contains the following:

- a guide body with a main plate, at least one slide plate, at least one centering protrusion and a vertical hole,

- mounted inside a vertical hole in the guide housing with the possibility of raising and lowering the lifting pin,

- a lifting cylinder for raising and lowering the lifting pin, which, on the one hand, is pivotally connected to the lifting pin and, on the other hand, can be rotated with the main plate, and

- a guide frame for supporting the cover of the electric arc furnace, which has a supporting arm, while the upper end of the supporting arm is designed to be connected to the cover and has an additional lifting protrusion containing a lifting eye, which is designed to engage the end of the lifting axle with the opposite lifting cylinder, this supporting shoulder at its other end has at least one mounted with the possibility of rotation of the sliding roller, the outer surface of which when lifting and lowering the lifting the cylinder rolls along at least one slide plate, and there is at least one elongated centering groove to accommodate at least one centering protrusion, which, when raising and lowering the lifting cylinder, can move inside the at least one centering groove.

Due to the articulated support of the lifting cylinder, warping in the cylinder is reliably prevented. Since the lift cylinder is not part of the lift pin, the cylinder can be replaced quickly and cheaply in the event of a malfunction. At least one slide roller minimizes friction between the guide frame and the guide body, so that wear in the contact area between the guide frame and the guide body is reduced. At least one centering protrusion is guided almost without wear in at least one centering groove, while the centering protrusion provides a vertical direction of the guide frame.

Therefore, particularly quick maintenance of the lifting and swiveling device is provided, according to the utility model, and maintenance cycles can be particularly long.

The problem is solved with respect to the furnace installation, in particular, the installation of an electric arc furnace, in that it comprises a furnace with a furnace cover and a cover for the furnace cover, as well as a lifting and pivoting device connected to the cover, according to a utility model, the cover being fixed to the upper end of the guide the frame relative to the lifting protrusion on the support arm, and the guide body is rotatably rotated about a vertical rotary axis relative to the furnace casing.

Since the lifting and turning device, according to the utility model, can be subjected to particularly fast maintenance and the maintenance cycles can be particularly long, this ensures increased availability of the furnace installation provided with the lifting and turning device, which favorably affects the productivity and operating cost of the furnace installation.

In particular, for a lifting and pivoting device, according to a utility model, it is further advantageous when the sealing device adapted to change in length is fixed, on the one hand, to the guide body and, on the other hand, to the end of the lifting pin facing the lifting protrusion, which when raising and lowering the lifting cylinder, it surrounds in a radial direction the part of the lifting pin that is lifted from the guide frame in the direction of the lifting protrusion. The variable length sealing device is preferably formed using a hose-shaped bellows seal.

The sealing device reliably prevents the penetration of dust, sparks or corrosive media into the vertical hole in the guide body, respectively, into the intermediate space between the lifting pin and the guide case, which could lead to blocking or pinching of the lifting pin inside the vertical hole of the guide case. Due to this, the maintenance costs of the lifting and rotary devices are significantly reduced.

In addition, for a lifting and pivoting device, according to a utility model, it is advantageous when at least one slide roller is rotatably mounted about an axis of rotation of the slide roller, the position of which can be shifted relative to the support arm. Due to this, it is possible to quickly and easily orient vertically the longitudinal axis of the support arm of the guide frame.

When at least one slide roller and / or slide plate is worn after a certain operating time of the lifting and rotary device, the position of the longitudinal axis of the support arm also changes, while the longitudinal axis is no longer oriented vertically, but forms an angle with the vertical. This leads in the furnace installation to the fact that there is an incorrect position of the cover relative to the casing of the furnace. The lid is no longer oriented strictly horizontally, but at an angle to the horizontal, so that in the worst case, when the lid is already raised, an undesirable collision with the furnace casing is possible. This can lead to damage to the lid and / or the casing of the furnace and / or the lifting and turning device.

The ability to adjust the position of the rotary axis of the roller (s) makes it possible to reduce the wear of the roller (s) and / or plate (s), so that collision between the lid and the casing of the furnace can be prevented for a long time, without the need to replace the components of the lifting and turning devices.

In one particularly preferred embodiment of the lifting and pivoting device, the guide body has two slide plates, and the guide frame has two slide rollers, with each slide roller being designed to roll along a respective slide plate. This ensures a more uniform input of forces into the guide body.

In one preferred embodiment of the lifting and pivoting device, the end of the lifting pin opposite the lifting cylinder is constricted, in particular conical or hemispherical. Due to this, the floating support of the guide frame is provided. Due to this, the tolerances on the dimensions that the lifting eye can have are increased. Jamming of the lifting and pivoting devices is reliably prevented.

It is advisable when the guide body has only one centering protrusion, and the guide frame has only one centering groove, which provides the possibility of vertical shift of the centering protrusion. In this case, it is preferable that one of the two preferably existing sliding rollers is located on the right and left next to the centering groove on the support arm.

In addition, in the lifting and swiveling device, it can be provided, in particular, when using it on an electric arc furnace, that at least one supporting electrode arm, mounted with the possibility of raising and lowering relative to the guide body, is connected to the guide body. At least one other lifting cylinder is typically used to raise and lower the at least one arm bearing the electrodes.

The task regarding the loading method of the furnace installation, according to the utility model, in particular, the installation of an electric arc furnace, is solved using the following steps:

- lifting the lifting pin using the lifting cylinder, while the lifting pin at its opposite end to the lifting cylinder enters the lifting eye, the guide frame with the cover rises, at least one centering protrusion moves vertically upwards in at least one centering groove, and along at least one slide roller rolls up at least one slide plate,

- rotation of the guide body, including the guide frame and the lid, around the vertical axis of rotation from the operating position in which the furnace casing is closed by the lid, to the loading position in which the lid opens the furnace casing,

- loading the casing of the furnace with the material to be melted, in particular scrap,

- rotation of the guide body, including the guide frame and the cover, around the vertical axis of rotation from the loading position back to the working position, and

- lowering the lifting pin using the lifting cylinder, wherein the guide body is lowered together with the cover, at least one centering protrusion moves vertically downward in at least one centering groove, and at least one slide roller rolls down at least one plate slip.

The method provides particularly low wear and thus long service intervals without time-consuming maintenance.

The task regarding the method of maintenance of the furnace installation, according to the utility model, in particular, the installation of an electric arc furnace, is solved using the following stages:

- lowering the lifting pin using the lifting cylinder to the operating position in which the furnace casing is closed by a lid, while the lifting pin slides at its opposite end to the lifting cylinder from the lifting eye, at least one centering protrusion moves vertically downward in at least one centering groove and at least one slide roller rolls down at least one slide plate,

- rotation of the guide body around the vertical rotary axis from the operating position to the maintenance position, while the lid remains on the casing of the furnace,

- maintenance of the lifting and swiveling device and / or other part of the furnace installation, and

- rotation of the guide body around the vertical rotary axis from the maintenance position back to the working position.

The method provides the possibility of quick and economical maintenance of a lifting and rotary device and / or other parts of the furnace installation.

In both methods, according to the utility model, it is preferable when, before the guide body is rotated about a vertical rotary axis from the operating position to the loading position or the maintenance position, at least one electrode supporting arm is raised relative to the guide body and the cover, and after the guide body is rotated around a vertical rotary axis from the loading position or the maintenance position back to the working position, at least one electrode supporting arm accelerate relative to the guide body and cover.

In FIG. Figures 1-18 show, by way of example, a possible lifting and turning device and a possible furnace installation provided with it. In addition, the figures illustrate loading and maintenance methods of an exemplary kiln installation shown. In this case, the figures depict:

FIG. 1 - lifting and rotary device, in side view;

FIG. 2 is a section along line II-II in FIG. one;

FIG. 3 is a section along line III-III in FIG. one;

FIG. 4 is a longitudinal section of another lifting and rotary device;

FIG. 5 is a section along line V-V of FIG. 1 other lifting and turning device;

FIG. 6 is another lifting and pivoting device according to FIG. 4 and 5, in a plan view;

FIG. 7 is a guide frame according to FIG. 1-6, in isometric view;

FIG. 8 is a sectional view of the guide frame according to FIG. 7;

FIG. 9 is a guide body, a lifting pin and a lifting cylinder, according to FIG. 1-3, in isometric view;

FIG. 10 is a guide body, a lifting pin and a lifting cylinder, according to FIG. 9, a gap being made in the area of the lifting cylinder and the lifting pin;

FIG. 11 is a lifting and swiveling device according to FIG. 1-3, in isometric view;

FIG. 12 is a longitudinal section of a lifting and pivoting device, in isometric view;

FIG. 13 - furnace installation in the working position, in a plan view;

FIG. 14 - furnace installation according to FIG. 13, in the loading position, in a plan view;

FIG. 15 - furnace installation according to FIG. 13, in the operating position, in a plan view;

FIG. 16 - furnace installation according to FIG. 13, in the maintenance position, in a plan view;

FIG. 17 is a sectional view of the furnace installation with the lid lowered onto the furnace casing, in side view, and

FIG. 18 - furnace installation according to FIG. 17, with the lid raised.

In FIG. 1 is a side view of a lifting and pivoting device 1, with a guide body 2 comprising a main plate 2a, two sliding plates 2b, 2b ', a centering protrusion 2c, and a vertical hole 2d. In addition, there is a lifting pin 3 that can be raised and lowered, which is guided by a vertical hole 2d in the guide body 2. A lifting cylinder 4 is designed to raise and lower the lifting pin 3. The lifting cylinder 4 is pivotally connected, on the one hand, to the lifting the trunnion 3 through the hinge 4a and, on the other hand, is pivotally connected to the main plate 2a and can be rotated with the guide body through the swivel hinge 4b.

Access to the lifting cylinder 4 is possible through the maintenance well 2e in the guide housing 2. The lifting and pivoting device 1 further comprises a guide frame 5 for supporting the furnace cover 11 (see also Figs. 17 and 18), which has a supporting arm 5a. At the upper end of the support arm 5a, there is a zone 5d, which is intended to be connected to the cover 11, and additionally a lifting protrusion 5b comprising a lifting eye 5c.

The lifting eye 5c is designed to engage the end of the lifting pin 3 with the opposite lifting cylinder 4. The supporting arm 5a has two sliding rollers 6, 6 'rotatably mounted in the area of its other end, whose outer surfaces 6b, 6b' are raised and lowered the lifting cylinder 4 roll on both plates 2b, 2b 'slip. In addition, the guide frame 5 has an elongated centering groove 6c, which is designed to receive the centering protrusion 2C. The centering protrusion 2c is mounted to slide up or down inside the centering groove 6c when raising and lowering the lifting cylinder 4 and acts as a guide of the guide frame 5 relative to the guide body 2.

In FIG. 2 shows a section along line II-II in FIG. 1. Identical elements denote identical elements.

In FIG. 3 shows a section along line III-III in FIG. 1. In this case, both slide plates 2b, 2b 'and both slide rollers 6, 6' are shown in detail.

In FIG. 4 shows in longitudinal section another lifting and pivoting device 1 ′. Identical elements are denoted by the same reference numbers as in FIG. 1-3. In FIG. 4 shows a section along line IV-IV in FIG. 6. At the same time, the implementation of the lifting eye 5c is shown in detail. The conically tapering end 3a of the lifting pin 6 enters when lifting the lifting pin 3 into the lifting eye 5c. Based on the tapering shape of the end 3a of the lifting pin 3, the tolerances of the lifting eye 5c are increased, and thus the replacement of the lifting eye 5c is only required after long periods of time. In addition, this lifting and pivoting device 1 ′ has a variable-length sealing device 7 which is fixed, on the one hand, to the guide body 2 and, on the other hand, to the end of the lifting pin 3 facing the lifting protrusion 5d. When lifting and lowering the lifting cylinder 4, the lifting pin 3 moves to or away from the lifting protrusion 5a, while the sealing device 7 constantly surrounds the portion of the lifting axle 3 raised from the guide frame 5 in the radial direction. In this case, the sealing The second device 7 is a hose-shaped bellows seal.

In FIG. 5 shows a section through a lifting and pivoting device 1 ′ according to FIG. 4, taken along line V-V in FIG. 6. It can be seen that the sealing device 7 also, when the lifting pin 3 is extended, creates a tight connection between the lifting pin 3 and the guide body 2, since the sealing device 7 is made variable in length.

In FIG. 6 is a top view of the lifting and pivoting device 1 ′ according to FIG. 4 and 5.

In FIG. 7 is a perspective view of the guide frame 5 of FIG. 1-6. Identical elements are denoted by the same reference numbers as in FIG. 1-6.

In FIG. 8 is a sectional view of the guide frame 5 of FIG. 7. Identical elements are denoted by the same reference numbers as in FIG. 7.

In FIG. 9 is a perspective view of a guide body 2, a lifting pin 3 and a lifting cylinder 4, as shown in FIG. 1-3. Identical elements are denoted by the same reference numbers as in FIG. 1-3. In this case, the maintenance well 2e is also shown in detail, through which access to the lifting cylinder 4 is provided in the guide body 2.

In FIG. 10 shows a guide body 2, a lifting pin 3 and a lifting cylinder 4, according to FIG. 9, while in the area of the lifting cylinder 4 and the lifting pin 3 a gap is made. Due to this, it is possible to see in detail the inner space of the lifting pin 3 and the connection of the lifting pin 3 with the lifting cylinder 4. Identical elements are denoted by the same positions as in FIG. 1-3.

In FIG. 11 is an isometric view of the lifting and pivoting device 1 of FIG. 1-3, which comprises a guide frame 5 according to FIG. 7 and 8, as well as a guide body 2, a lifting pin 3 and a lifting cylinder 4, according to FIG. 9 and 10. FIG. 11, a lifting and pivoting device 1 is also shown in partial cross-section for showing the interior of the lifting pin 3.

In FIG. 12 also shows an isometric view of the lifting and pivoting device 1, while it is shown in longitudinal section and the lower zone of the lifting cylinder 4 is not shown.

In FIG. 13 and 14 show a top view of the furnace 100, with FIG. 13, the furnace 100 is in the operating position, and in FIG. 14 - in the loading position. The furnace installation 100 includes a lifting and turning device, according to a utility model, comprising a guide body 2, a lifting pin 3, a lifting cylinder 4 not shown here, and a guide frame 5. In addition, there are supporting electrodes arms 8a, 8b, 8c, which are installed with the possibility raising and lowering relative to the guide body 2. The bearing electrodes shoulders 8a, 8b, 8c are connected to the electrodes 9 that pass through the cover 11. The cover 11 closes the furnace space 10a in the casing 10 of the furnace, while the casing 10 of the furnace contains a discharge e device 13.

On the lid 11 is a connection 12 for exhaust gas from the furnace space 10A. To transfer the lid 11 from the one shown in FIG. 13 of the operating position to that shown in FIG. 14 is the loading position, the lifting pin 3 is lifted by the lifting cylinder 4, while the lifting pin 3 at its opposite end to the lifting cylinder 4 ends in the lifting eye 5c. Due to this, the guide frame 5 rises together with the cover 11, while the centering protrusion 2c moves vertically upward in the centering groove 6c, and the sliding rollers 6, 6 'roll up the sliding plates 2b, 2b'. Then, the guide body 2, including the guide frame 5 and the cover 11, is moved around the vertical pivot axis from the operating position to the loading position, in which the cover 11 allows access to the casing 10 of the furnace, respectively, of the furnace space 10a.

Then, the material 14 to be melted is loaded into the casing 10 of the furnace, while the material used 14 is, in particular, scrap. Then, the guide body 2, including the guide frame 5 and the cover 11, rotates around a vertical rotary axis from the loading position back to the working position. Then, the lifting pin 3 is lowered using the lifting cylinder 4, the guide frame 2 is lowered together with the cover 11, the centering protrusion 2c moves vertically downward in the centering groove 6c, and the sliding rollers 6, 6 'roll down the sliding plates 2b, 2b' . Then, the cover 11 of the furnace installation 100 is again in the operating position, as shown in FIG. 13.

In FIG. 15 and 16 show how maintenance of the furnace 100 can be performed. In this case, FIG. 13 and 15 are identical and they show the working position of the cover 11, as well as the shoulders 8a, 8b, 8c of the electrodes carrying the electrodes 9. To perform maintenance of the furnace installation 100, the lifting pin 3 is lifted using the lifting cylinder 4, while the cover 11 remains on the casing 10 of the furnace. The lifting pin 3 slides on its opposite end to the lifting cylinder 4 at the end 3a from the lifting eye. At the same time, the centering protrusion 4 moves vertically downward in the centering groove 6c, and both slide rollers 6, 6 'roll down the slide plates 2b, 2b'. The guide body 2 is rotated, including the arms electrodes 8a, 8b, 8c, including electrodes 9, including the electrodes 9, raised above with at least one other, not shown lifting cylinder, to the maintenance position shown in FIG. 16. In the cover 11 you can see the holes 9 'for the electrodes 9.

In this maintenance position, it is possible to carry out maintenance work on the lifting and turning device 1, 1 'or other part of the furnace installation 100, which is possible only after turning the guide body 2, respectively, the separation of the guide body 2 from the guide frame 5. Then, the reverse rotation is carried out guide body 2 around a vertical pivot axis from the maintenance position back to the operating position according to FIG. 15. After lowering the electrodes supporting the arms 8a, 8b, 8c, the electrodes 9 being inserted through the openings 9 'in the lid 11 into the casing 10 of the furnace, the loaded material 14 can be melted in the furnace space 10a.

In FIG. 17 is a side view of a furnace installation 100 comprising a furnace with a furnace cover 10 in which the furnace space 10a is located, as well as a cover 11 in section. The furnace installation again includes a lifting and turning device 1 ', which is also shown in section. Identical elements of the lifting and pivoting device 1 'are denoted by the same reference numbers as in FIG. 4 to 6. Moreover, in FIG. 17 shows a furnace installation 100 with the lid 11 lowered, respectively, by a closed casing 10 of the furnace.

In FIG. 18 shows a furnace installation 100 with the lid 11 raised.

It is understood that in FIG. 1-18 are shown only examples of the lifting and swiveling device, according to the utility model, as well as equipped with a furnace installation. The method, according to a utility model, using a lifting and pivoting device, according to a utility model, is also shown only schematically. So, in the lifting and turning device, according to the utility model, the number of sliding rollers and sliding plates, the shape of the end of the lifting pin and thereby the corresponding lifting eye, and the number of centering protrusions and centering grooves can be changed without departing from the idea of the utility model. In addition, the constituent parts of the furnace installation, such as the furnace casing, exhaust device, cover, etc., can be made with changes.

Claims (9)

1. A lifting and pivoting device (1, 1 ′) for the cover (11) of the furnace, in particular an electric arc furnace, comprising a guide body (2) with a main plate (2a), at least one sliding plate (2b, 2b ′), at least one centering protrusion (2c) and a vertical hole (2d) installed inside the vertical hole (2d) in the guide body (2) with the possibility of raising and lowering the lifting pin (3), the lifting cylinder (4) for raising and lowering the lifting trunnions (3), which, on the one hand, is pivotally connected to a lifting trunnion (3) and, with on the other hand, with the possibility of rotation with the main plate (2a), and a guide frame (5) for supporting the cover (11), which has a supporting shoulder (5a), while the upper end of the supporting shoulder (5a) is designed to connect with the cover (11 ) and additionally has a lifting protrusion (5b) containing a lifting eye (5c), which is designed to engage with the end of the lifting pin (3) opposite to the lifting cylinder (4), while the supporting arm (5a) has at its other end at least one pivotally mounted roller (6, 6 ′) of pressure, the outer surface (6b, 6b ′) of which, when raising and lowering the lifting cylinder (4) rolls along at least one plate (2b, 2b ′) of sliding, and at the same time contains at least one elongated centering groove (6c) for accommodating at least one centering protrusion (2c), which, when raising and lowering the lifting cylinder (4), can move inside the at least one centering groove (6c). 2. The device according to claim 1, which comprises a sealing device (7) made with the possibility of changing along the length, fixed, on the one hand, on the guide body (2) and, on the other hand, on the end of the lifting end facing the lifting lip (5b) trunnion (3), which when raising and lowering the lifting cylinder (4) surrounds in a radial direction the part of the lifting trunnion (3) that is lifted from the guide frame (2) in the direction of the lifting protrusion (5b). 3. The device according to claim 2, in which a variable-length sealing device (7) is formed using a hose-shaped bellows seal. 4. The device according to any one of claims 1 to 3, which contains at least one sliding roller (6, 6 ′) mounted to rotate around the axis of rotation (6a, 6a ′) of the sliding roller, the position of which can be shifted relative to the support arm (5a). 5. The device according to any one of claims 1 to 3, in which the end of the lifting pin (3), opposite to the lifting cylinder (4), is constricted, in particular, conical or hemispherical. 6. The device according to any one of claims 1 to 3, in which the guide body (2) has two sliding plates (2b, 2b ′), and the guide frame (5) has two sliding rollers (6, 6 ′), each the sliding roller (6, 6 ′) is intended for rolling along the corresponding sliding plate (2b, 2b ′). 7. The device according to any one of claims 1 to 3, in which the guide body (2) has one centering protrusion (2c), and the guide frame (5) has one centering groove (6c), which allows the vertical shift of the centering protrusion ( 2c). 8. A device according to any one of claims 1 to 3, which comprises at least one arm (8a, 8b, 8c) that is mounted with the possibility of raising and lowering relative to the guide body and connected to the guide body (2). 9. The furnace installation (100), in particular the installation of an electric arc furnace, comprising a furnace with a furnace cover (10) and a cover (11) for the furnace cover (10), as well as a lifting and swiveling device (1, 1 ′) connected to the cover any of claims 1 to 8, in which the cover (11) is fixed on the upper end of the guide frame (5) relative to the lifting protrusion (5b) on the support arm (5a), and the guide body (2) is rotatably rotated around a vertical rotary axis relative to the casing (10) of the furnace.