A turning and lifting heat preservation cover device and a slab continuous casting heat preservation cutting system

Abstract

The utility model discloses a kind of diverting lifting heat preservation cover device and slab continuous casting heat preservation cutting system, belong to slab continuous casting equipment technical field.The device includes: steel frame, L-shaped guide slot including horizontal section and vertical section are provided on steel frame;Several sections are hingedly heat preservation cover in turn, can move on horizontal rail, and is equipped with the guide wheel cooperation with guide slot;Drive system includes mobile trolley for driving heat preservation cover horizontal movement, and by the winch device of steel rope drive last section heat preservation cover along guide slot lifting.Gathering, winch device drives heat preservation cover along L-shaped guide slot by horizontal state to divert to vertical state, compactly accomodate in steel frame side.The utility model is through the unique design of diverting lifting, realizes the effective heat preservation to steel billet in narrow space, reduces heat loss, saves energy, and small, and stable and reliable operation occupies space.

Description

Technical Field

[0001] This utility model belongs to the technical field of slab continuous casting equipment, specifically relating to a steering and lifting insulation cover device and a slab continuous casting insulation and cutting system. Background Technology

[0002] In the slab continuous casting process of steel production, after the high-temperature steel billet leaves the continuous casting machine, it needs to be cut into slabs of fixed length by a flame cutter (referred to as a flame cutter). During this process, the flame cutter needs to move synchronously with the steel billet to complete the cutting operation. After cutting, the slab is either sent to a cooling bed for cooling or directly hot-charged and sent to the rolling mill process.

[0003] To improve energy efficiency, reduce billet temperature drop, and increase hot charging and delivery rates, ideally, billets should be kept warm throughout the entire conveying and handling process. However, in the flame-cutting zone, the space above and to the sides is very limited and dynamically changing due to the need for the flame-cutting machine and its auxiliary equipment to move along the billet. Traditional fixed or simple suspended insulation covers are unsuitable. Without insulation, the high-temperature billet will undergo intense heat exchange with the surrounding environment in this zone, causing a rapid drop in surface temperature and resulting in significant heat loss. This not only increases the reheating energy consumption of subsequent rolling processes but may also affect the quality of the billet due to uneven temperature drop. Therefore, there is an urgent need for a device that can adapt to the confined and dynamic space of the flame-cutting machine area and achieve effective insulation. Summary of the Invention

[0004] Purpose of the invention: The purpose of this utility model is to address the shortcomings of the prior art by providing a steering and lifting insulation cover device to solve the problems of difficulty in heat preservation of steel billets in the flame cutting area, serious heat loss, and large space occupation of traditional insulation equipment in the prior art.

[0005] Technical Solution: The present invention relates to a steering and lifting insulation cover device, comprising: a steel frame with an L-shaped guide groove, the L-shaped guide groove including a horizontal section and a vertical section; a track arranged horizontally; several insulation covers articulated sequentially, capable of moving along the track and the L-shaped guide groove; and a drive system including a trolley and a winch device. The trolley is connected to the first insulation cover among the several insulation covers, driving the several insulation covers to move horizontally along the track. The winch device is connected to the last insulation cover among the several insulation covers via a steel rope, driving the last insulation cover to rise and fall, thereby causing the guide wheel on it to move between the vertical and horizontal sections of the L-shaped guide groove, thus turning all the insulation covers between a horizontal working state and a vertically retracted state.

[0006] To further improve the above technical solution, the horizontal and vertical sections of the L-shaped guide groove are connected by an arc transition to ensure that the heat insulation cover can turn smoothly.

[0007] Furthermore, the hinge between the first insulation cover and the moving trolley and the adjacent insulation covers is achieved through a wheel axle. The wheel axle includes an axle and guide wheels disposed at both ends of the axle. The guide wheels engage with the L-shaped guide groove to guide the insulation cover from a horizontal state to a vertical state or from a vertical state to a horizontal state along the L-shaped guide groove.

[0008] Furthermore, the heat insulation cover includes a heat insulation cover body and second wheels disposed at both ends of the heat insulation cover body, the second wheels being capable of moving on the track.

[0009] Furthermore, the mobile trolley includes a trolley body and end beams disposed at both ends of the trolley body. The trolley body is adapted to the heat insulation cover. A first motor and a first wheel are installed on the end beams. The first motor drives the first wheel to make the mobile trolley move on the track.

[0010] Furthermore, the hoisting device is installed on the top of the steel frame and includes a first drum, a second drum, an intermediate coupling, a reducer, a reducer coupling, a second motor, and a brake. The output end of the second motor is connected to the reducer. The reducer is connected to the first drum, the intermediate coupling, and the second drum via the reducer coupling to drive the first drum and the second drum to rotate. The steel rope is wound on the first drum and the second drum respectively to achieve a balanced lifting state of the heat insulation cover.

[0011] Furthermore, the number of the insulation covers can be adjusted according to the production process requirements to achieve a flexible configuration of the number of insulation covers that can be unfolded or retracted.

[0012] This utility model also provides a slab continuous casting heat preservation and cutting system, including a fire cutter and the above-mentioned steering and lifting heat preservation cover device. The steering and lifting heat preservation cover device is configured to move synchronously with the fire cutter to continuously cover and keep the steel billet located in front of the fire cutter during the fire cutting operation.

[0013] Beneficial effects: Compared with the prior art, the advantages of this utility model are: This device can effectively cover and insulate the steel billet in the critical heat loss stage of flame cutting, significantly reduce the temperature drop, improve the hot charging and hot delivery rate of the steel billet, and thus greatly reduce the energy consumption of subsequent heating processes.

[0014] By employing a working method of horizontal unfolding and vertical retraction, the retracted insulation cover is stacked vertically, occupying a minimal floor area, perfectly solving the industry problem of narrow space in the fire cutting machine area and the difficulty in arranging traditional insulation equipment.

[0015] The precise fit between the L-shaped guide groove and the guide wheel provides reliable guidance for the turning movement of the insulation hood, preventing swaying or jamming. The double-drum hoisting device ensures balanced force during the lifting process, and the entire device operates smoothly, safely, and reliably.

[0016] It can be linked with the main production line equipment, and the number of insulation covers can be flexibly adjusted according to process requirements, and it has good adaptability to steel billets of different lengths. Attached Figure Description

[0017] Figure 1 This is a schematic elevation view of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a side view of the overall structure of an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the mobile trolley in an embodiment of this utility model.

[0020] Figure 4 This is a schematic diagram of the end beam in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the heat insulation cover in the embodiment of this utility model.

[0022] Figure 6 This is a schematic diagram of the wheel axle structure in an embodiment of this utility model.

[0023] Figure 7 This is a schematic diagram of the hoisting device in an embodiment of the present invention.

[0024] In the diagram: 1-track, 2-moving trolley, 3-insulation cover, 4-axle, 5-steel frame, 6-hoisting device, 7-steel rope, 8-guide groove, 9-end beam, 10-car body, 11-first motor, 12-first wheel, 13-second wheel, 14-insulation cover body, 15-shaft, 16-guide wheel, 17-base, 18-first drum, 19-intermediate coupling, 20-second drum, 21-reducer coupling, 22-reducer, 23-second motor, 24-brake. Detailed Implementation

[0025] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0026] Example 1: As Figure 1 and Figure 2The shown steering and lifting insulation cover device mainly includes a fixed steel frame 5, which is erected on a concrete foundation. Below the steel frame 5, a horizontal track 1 is set parallel to the billet conveying direction. Several insulation covers 3 connected in sequence can move on the steel frame 5 and the track 1.

[0027] like Figure 5 As shown, each section of the insulation cover 3 consists of an insulation cover body 14 and second wheels 13 mounted at both ends. The insulation cover body 14 is filled with high-temperature resistant insulation material (such as ceramic fiber) to insulate against heat. The second wheels 13 can roll smoothly on the track 1.

[0028] Adjacent insulation covers 3 are hinged together by axles 4, forming a flexible, foldable cover chain. Figure 6 As shown, the axle 4 includes a central shaft 15 and guide wheels 16 fitted at both ends of the shaft 15. This hinge structure allows for relative rotation between adjacent insulation cover bodies 14 when the insulation cover 3 is folded up, facilitating smooth folding.

[0029] A crucial L-shaped guide groove 8 is installed on the uprights of the steel frame 5, comprising a horizontal section parallel to the track 1 and a vertical section extending upwards. To ensure a smooth and shock-free turning process, the horizontal and vertical sections are preferably connected by an arc transition section. The guide wheels 16 on each section of the insulation cover 3 are engaged and accommodated in the guide groove 8, and their movement trajectory is constrained by the guide groove 8.

[0030] The drive system of the device includes a mobile trolley 2 and a hoisting device 6.

[0031] like Figure 3 and Figure 4 As shown, the mobile trolley 2 is connected to the first section of several insulation covers 3. Its structure includes a trolley body 10 and end beams 9 at both ends. A first motor 11 and a first wheel 12 are installed on the end beams 9. The first motor 11 drives the first wheel 12 to rotate, thereby driving the entire mobile trolley 2 and the insulation cover 3 chain connected to it to move horizontally along the track 1.

[0032] like Figure 7 As shown, the hoisting device 6 is mounted on top of the steel frame 5. It includes a base 17, a second motor 23, a brake 24, a reducer 22, and a first drum 18 and a second drum 20 connected by couplings 19 and 21. The second motor 23 drives the two drums to rotate synchronously. One end of the steel rope 7 is wound around the two drums respectively, and the other end is connected to the axle 4 of the last section of the insulation cover 3. The design of double drums and double steel ropes can make the force on the last section of the insulation cover 3 more balanced during the lifting and lowering process, and the operation is more stable.

[0033] The work process is described as follows: Deployed state (horizontal operation): The first motor 11 drives the moving trolley 2 to move horizontally along the track 1 away from the steel frame 5, pulling the hinged insulation covers 3 chains apart like an accordion, and covering the steel billet below in sequence. At this time, all the guide wheels 16 of the insulation covers 3 are located in the horizontal section of the L-shaped guide groove 8.

[0034] Retracted State (Turning and Lifting): The first motor 11 drives the moving trolley 2 back towards the steel frame 5. Simultaneously, the second motor 23 of the winch device 6 starts, tightening the steel cable 7 and lifting the last section of the insulation cover 3 vertically upwards. Under the tension of the steel cable 7 and the constraint of the guide groove 8, the guide wheel 16 of the last section of the insulation cover 3 will follow the guide groove 8 from the horizontal section through the arc transition section into the vertical section. Since all the insulation covers 3 are hinged, the lifting of the last section will drive the previous section, folding the entire insulation cover chain in sequence. Finally, all the insulation covers 3 are compactly stacked vertically next to the steel frame 5, completing the turning from the horizontal to the vertical state.

[0035] Example 2: This device can also be equipped with a PLC controller to coordinate the start, stop, and speed of the first motor 11 and the second motor 23, achieving automated operation. This control system can be linked with the flame cutting machine, enabling the insulation cover device to move forward or backward synchronously with the flame cutting machine. Simultaneously, the system can precisely control the stroke of the moving trolley 2 according to the length of the steel billet to be cut, thereby flexibly adjusting the number of unfolded or retracted insulation covers 3.

[0036] This utility model also provides a slab continuous casting heat preservation and cutting system, including a fire cutter and a steering and lifting heat preservation cover device provided in Embodiment 1. The steering and lifting heat preservation cover device is configured to move synchronously with the fire cutter to continuously cover and keep the steel billet located in front of the fire cutter during the fire cutting operation.

[0037] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A steering and lifting heat-insulating cover device, characterized in that, include: A steel frame (5) is provided with an L-shaped guide groove (8), which includes a horizontal section and a vertical section. A track (1) set in a horizontal direction; A series of sequentially hinged heat insulation covers (3) can move along the track (1) and the L-shaped guide groove (8); The drive system includes a trolley (2) and a winch (6); wherein the trolley is connected to the first section of the insulation cover (3) and is used to drive the insulation covers to move horizontally along the track (1); the winch (6) is connected to the last section of the insulation cover (3) via a steel rope and is used to drive the last section of the insulation cover (3) to rise and fall, thereby causing the guide wheel (16) on it to move between the vertical and horizontal sections of the L-shaped guide groove (8), thereby driving all the insulation covers (3) to turn between the horizontal working state and the vertical retracted state.

2. The steering lifting heat insulation cover device according to claim 1, characterized in that, The horizontal and vertical sections of the L-shaped guide groove (8) are connected by an arc transition to ensure that the heat insulation cover (3) turns smoothly.

3. The steering lifting heat insulation cover device according to claim 2, characterized in that, The hinge between the first heat insulation cover (3) and the moving trolley (2) and the adjacent heat insulation cover (3) is achieved by a wheel axle (4). The wheel axle (4) includes a shaft (15) and guide wheels (16) set at both ends of the shaft (15). The guide wheels (16) mesh with the L-shaped guide groove (8) to guide the heat insulation cover from a horizontal state to a vertical state or from a vertical state to a horizontal state along the L-shaped guide groove (8).

4. The steering lifting heat insulation cover device according to claim 3, characterized in that, The heat insulation cover (3) includes a heat insulation cover body (14) and second wheels (13) disposed at both ends of the heat insulation cover body (14). The second wheels (13) are capable of moving on the track (1).

5. The steering lifting heat insulation cover device according to claim 4, characterized in that, The mobile trolley (2) includes a body (10) and end beams (9) at both ends of the body (10). The body (10) is adapted to the heat insulation cover (14). A first motor (11) and a first wheel (12) are installed on the end beams (9). The first motor drives the first wheel to make the mobile trolley move on the track.

6. The steering lifting heat insulation cover device according to claim 3, characterized in that, The hoisting device is installed on the top of the steel frame and includes a first drum, a second drum, an intermediate coupling, a reducer, a reducer coupling, a second motor, and a brake. The output end of the second motor is connected to the reducer. The reducer is connected to the first drum, the intermediate coupling, and the second drum through the reducer coupling to drive the first drum and the second drum to rotate. The steel rope (7) is wound on the first drum and the second drum respectively to achieve a balanced lifting state of the heat insulation cover (3).

7. The steering lifting heat insulation cover device according to claim 1, characterized in that, The number of insulation covers can be adjusted according to production process requirements to achieve flexible configuration of the number of insulation covers that can be unfolded or retracted.

8. A slab continuous casting heat preservation and cutting system, comprising a heat cutter and a steering and lifting heat preservation cover device as described in any one of claims 1 to 7, characterized in that, The steering and lifting insulation cover device is configured to move synchronously with the fire-cutting machine to continuously cover and insulate the steel billet located in front of the fire-cutting machine during the fire-cutting operation.

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