Sliding rail arrangement system of pusher-type heating furnace for small-section blanks

Abstract

The utility model relates to the technical field of heating furnaces, in particular to a sliding rail arrangement system of a pusher-type heating furnace for small-section blanks. A steel water-cooling-free sliding rail is arranged in the low-temperature area of the heating furnace in the length direction, and tensioning structures fixed to the outer ends of the vaporization cooling water beam sliding rail and the steel water-cooling-free sliding rail are arranged at the furnace head and the furnace tail of the heating furnace correspondingly. And the inner ends of the steel water-cooling-free slide rail and the vaporized cooling water beam slide rail form a connection section with a certain length at the junction of the high-temperature area and the low-temperature area. A vaporized cooling water beam sliding rail in a low-temperature area is replaced by a steel water-cooling-free sliding rail, so that the cooling water consumption of the heating furnace is reduced, the specifications of corresponding steam pocket and water feeding pump equipment are correspondingly reduced, the construction cost and the operation cost are reduced, the vaporized cooling water beam sliding rail is reduced, the heating area of a water beam in the furnace is reduced, and the gas consumption of the heating furnace is directly influenced; and the energy consumption per ton of steel can be reduced by 2.5%-3%.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a slide rail arrangement system of a push-steel heating furnace for small-section blanks. Background Art

[0002] The pusher type continuous heating furnace is a heating equipment that relies on a pusher to push the blank in the furnace for continuous movement. During the heating process, the blank is loaded from the low temperature zone side of the furnace tail, and then moves along the vaporization cooling water beam slide rail at a certain speed to the high temperature zone side of the furnace head under the mechanical action, in the opposite direction of the hot gas in the furnace. This design allows the heating process to proceed continuously. When the blank is heated to the temperature required by the process, it is continuously discharged from the furnace, realizing the automation and continuity of the heating process. Under stable working conditions, the furnace gas flows from the furnace head to the furnace tail along the length of the furnace, and the furnace temperature and furnace gas temperature gradually decrease along the flow direction, but the temperature of each point in the furnace basically does not change with time. The heat transfer in the furnace can be approximately regarded as steady-state heat transfer, and the heat transfer inside the metal belongs to unstable state heat conduction. This design ensures the uniformity and efficiency of heating, and also improves the controllability and safety of the heating process.

[0003] The vaporization cooling water beam slide rail includes a vertical support pipe fixed on a concrete foundation, a horizontal water pipe is welded on the top of the vertical support pipe, a longitudinal water pipe is overlapped on the horizontal water pipe, and heat-resistant sliders are welded on the longitudinal water pipe at intervals; as the steel billet moves on the slide rail, the water beam in the furnace will move due to the influence of friction. If the water beam slide rail moves too much, it will affect its service life, so a tensioning device is generally added at the tail of the furnace to fix the longitudinal water pipe.

[0004] Moreover, the demand for water cooling in the low-temperature section is not large. The use of vaporized cooling water beam slides will result in a large amount of cooling water for the heating furnace and an increase in the cost of corresponding supporting measures. Utility Model Content

[0005] The utility model aims to solve the above problems, thereby providing a slide rail arrangement system for a push-steel heating furnace for small-section billets with reduced costs.

[0006] The utility model solves the above problems and adopts the following technical solutions:

[0007] A slide rail arrangement system for a push-steel heating furnace for small-section billets comprises a vaporization cooling water beam slide rail located in a high-temperature zone of the heating furnace, a steel water-free slide rail is arranged along the length direction in the low-temperature zone of the heating furnace, and tensioning structures fixed to the outer ends of the vaporization cooling water beam slide rail and the steel water-free slide rail are respectively arranged at the furnace head and the furnace tail of the heating furnace, and the inner ends of the steel water-free slide rail and the vaporization cooling water beam slide rail form a connecting section of a certain length at the junction of the high-temperature zone and the low-temperature zone.

[0008] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0009] Replacing the vaporization cooling water beam slide rail in the low-temperature zone with a steel water-free slide rail reduces the cooling water consumption of the heating furnace. The corresponding specifications of the steam drum and water supply pump equipment are also reduced accordingly, reducing the project cost and operating cost. The heating area of ​​the water beam in the furnace is reduced, which directly affects the gas consumption of the heating furnace. The energy consumption per ton of steel can be reduced by 2.5%~3%. The outer ends of the vaporization cooling water beam slide rail and the steel water-free slide rail are fixed by a tensioning structure respectively. The movement direction of both points to the furnace, with reliable strength to ensure smooth operation.

[0010] As a preferred embodiment, a further technical solution of the utility model is:

[0011] Furthermore, the steel non-water-cooled slide rail includes a plurality of longitudinal beams arranged along the length direction of the heating furnace, support rods are arranged at intervals at the bottom of the longitudinal beams, and heat-resistant sliding blocks are welded at intervals at the top of the longitudinal beams.

[0012] Furthermore, the top surface of the heat-resistant sliding block is at the same height as the top surface of the vaporization cooling water beam slide rail.

[0013] Furthermore, the number of longitudinal beams is equal to that of longitudinal water pipes, and the inner ends of several longitudinal beams and longitudinal water pipes form a connection section of a certain length at the junction of the high temperature zone and the low temperature zone, and there is a gap between the connection of the longitudinal beams and the longitudinal water pipes.

[0014] Furthermore, the tensioning structure includes concrete foundation surfaces respectively arranged at the furnace head and furnace tail of the heating furnace, fixed steel plates are arranged on the concrete foundation surfaces, and the outer ends of the longitudinal water pipes and longitudinal beams are respectively welded and fixed to the top surfaces of adjacent fixed steel plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0017] Marked in the figure are: longitudinal water pipe 1, transverse water pipe 2, heat-resistant slider 3, support rod 4, longitudinal beam 5, concrete foundation table 6, fixed steel plate 7, vertical support pipe 8, vaporization cooling water beam slide rail 9, steel non-water-cooled slide rail 10, high temperature zone 11, and low temperature zone 12. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0019] A slide rail arrangement system for a push-steel heating furnace for small-section billets includes a vaporization cooling water beam slide rail 9 located in a high-temperature zone 11 of the heating furnace, the vaporization cooling water beam slide rail 9 includes a vertical support pipe 8 fixed on a concrete foundation, a horizontal water pipe 2 is welded to the top of the vertical support pipe 8, a longitudinal water pipe 1 is overlapped on the horizontal water pipe 2, and heat-resistant sliding blocks 3 are welded on the longitudinal water pipe 1 at intervals, a steel non-water-cooled slide rail 10 is arranged along the length direction in the low-temperature zone 12 of the heating furnace, and tensioning structures fixed to the outer ends of the vaporization cooling water beam slide rail 9 and the steel non-water-cooled slide rail 10 are respectively arranged at the furnace head and the furnace tail of the heating furnace, and the inner ends of the steel non-water-cooled slide rail 10 and the vaporization cooling water beam slide rail 9 form a connecting section of a certain length at the junction of the high-temperature zone 11 and the low-temperature zone 12.

[0020] Furthermore, the steel water-free slide rail 10 includes a plurality of longitudinal beams 5 arranged along the length direction of the heating furnace, support rods 4 are arranged at intervals at the bottom of the longitudinal beams 5, and heat-resistant sliders 3 are welded at intervals at the top of the longitudinal beams 5. The support rods 4 and the longitudinal beams 5 are made of square steel billets, and the use of cooling water is eliminated in the low temperature zone 12. For billets with large cross-sectional areas, such as medium and thick plates, the billets are thicker and heavier. During the operation of the billets, a large thrust is required, which means that the friction is also large. The strength of the steel water-free slide rail 10 is insufficient to support billets with large cross-sectional areas, which may easily lead to the collapse of the steel water-free slide rail 10. Therefore, this structure is designed for billets with small cross-sectional areas.

[0021] Furthermore, the top surface of the heat-resistant slider 3 is at the same height as the top surface of the vaporization cooling water beam slide rail 9 , and the heat-resistant slider 3 at the top of the longitudinal beam 5 is at the same height as the heat-resistant slider 3 at the top of the longitudinal water pipe 1 .

[0022] Furthermore, the number of longitudinal beams 5 is equal to that of longitudinal water pipes 1 , and the inner ends of several longitudinal beams 5 and longitudinal water pipes 1 form a connecting section of a certain length at the junction of the high temperature zone 11 and the low temperature zone 12 , and there is a gap between the connecting parts of the longitudinal beams 5 and the longitudinal water pipes 1 .

[0023] Furthermore, the tensioning structure includes a concrete foundation table 6 respectively arranged at the furnace head and the furnace tail of the heating furnace, and a fixed steel plate 7 is arranged on the concrete foundation table 6. The fixed steel plate 7 is fixed to the concrete foundation table 6 by bolts. The outer ends of the longitudinal water pipe 1 and the longitudinal beam 5 are respectively welded and fixed to the top surfaces of adjacent fixed steel plates 7. The outer ends of the longitudinal water pipe 1 and the longitudinal beam 5 are fixed by the fixed steel plate 7 so that the movement directions of both are directed into the furnace.

[0024] Replacing the vaporization cooling water beam slide rail in the low-temperature zone with a steel water-free slide rail reduces the cooling water consumption of the heating furnace. The corresponding specifications of the steam drum and water supply pump equipment are also reduced accordingly, reducing the project cost and operating cost. The reduction of the vaporization cooling water beam slide rail reduces the heating area of ​​the water beam in the furnace, which directly affects the gas consumption of the heating furnace. The energy consumption per ton of steel can be reduced by 2.5%~3%. The outer ends of the vaporization cooling water beam slide rail and the steel water-free slide rail are fixed by a tensioning structure respectively. The movement direction of both points to the furnace, with reliable strength to ensure smooth operation.

[0025] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A slide rail arrangement system for a push-steel heating furnace for small-section billets, comprising a vaporization cooling water beam slide rail located in a high-temperature zone of the heating furnace, characterized in that: A steel water-free slide rail is arranged along the length direction in the low-temperature zone of the heating furnace. A tensioning structure fixed to the vaporization cooling water beam slide rail and the outer end of the steel water-free slide rail is respectively arranged at the furnace head and the furnace tail of the heating furnace. The inner ends of the steel water-free slide rail and the vaporization cooling water beam slide rail form a connecting section of a certain length at the junction of the high-temperature zone and the low-temperature zone.

2. The slide rail arrangement system of the pusher type heating furnace for small cross-section billets according to claim 1 is characterized in that: The steel non-water-cooled slide rail comprises a plurality of longitudinal beams arranged along the length direction of the heating furnace, support rods are arranged at intervals at the bottom of the longitudinal beams, and heat-resistant sliding blocks are welded at intervals at the top of the longitudinal beams.

3. The slide rail arrangement system of the pusher type heating furnace for small cross-section billets according to claim 2 is characterized in that: The top surface of the heat-resistant sliding block is at the same height as the top surface of the vaporization cooling water beam slide rail.

4. The slide rail arrangement system of the pusher type heating furnace for small cross-section billets according to claim 2 is characterized in that: The number of longitudinal beams corresponds to that of longitudinal water pipes. Several longitudinal beams and the inner ends of the longitudinal water pipes form a connection section of a certain length at the junction of the high temperature zone and the low temperature zone. There is a gap between the connection of the longitudinal beams and the longitudinal water pipes.

5. The slide rail arrangement system of the pusher type heating furnace for small cross-section billets according to claim 1 is characterized in that: The tensioning structure includes concrete foundation surfaces respectively arranged at the furnace head and furnace tail of the heating furnace, fixed steel plates are arranged on the concrete foundation surfaces, and the outer ends of the longitudinal water pipes and longitudinal beams are respectively welded and fixed to the top surfaces of the adjacent fixed steel plates.

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