CN219004527U

CN219004527U - Continuous casting production device for electric furnace steelmaking

Info

Publication number: CN219004527U
Application number: CN202223527385.6U
Authority: CN
Inventors: 王昭阳; 武新军; 冯康宁; 马磊
Original assignee: Qinyang Hongda Steel Co ltd
Current assignee: Qinyang Hongda Steel Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-05-12
Anticipated expiration: 2032-12-20

Abstract

The utility model relates to a continuous casting production device for electric furnace steelmaking, which belongs to the technical field of steelmaking equipment and comprises two support plates, wherein an upper press roll and a lower press roll which are matched with each other are arranged between the two support plates; the lower press roll is connected with a cooling assembly, the cooling assembly comprises two circular baffles, the two circular baffles are respectively fixed at two ends of the lower press roll, a first cold water cavity is arranged in the circular baffles, a second cold water cavity is arranged in the lower press roll, two ends of the lower press roll are respectively and fixedly connected with a first water guide pipe, one end of the first water guide pipe is communicated with the second cold water cavity, the first cold water cavity is communicated with the first water guide pipe through a water inlet and outlet, a transmission gear is fixed on the outer wall of one of the first water guide pipes, a driving gear is meshed with the transmission gear, and the driving gear is fixedly connected with an output shaft of a driving motor. The utility model can effectively cool the upper compression roller and the lower compression roller, reduce the waste of water resources, save energy sources and improve the cooling efficiency; meanwhile, the side edge of the steel billet can be primarily cooled, and the production is facilitated.

Description

Continuous casting production device for electric furnace steelmaking

Technical Field

The utility model belongs to the technical field of steelmaking equipment, and particularly relates to an electric furnace steelmaking continuous casting production device.

Background

The production process of continuously casting high-temperature molten steel into casting blanks with certain cross-section shape and certain size in the electric furnace steelmaking process is called continuous casting, and the compression roller of a continuous casting machine required for completing the process is an important device for conveying the steel blanks. In the process of conveying the steel billets, the compression roller is in direct contact with the high-temperature steel billets, so that the temperature is increased, the service life of the compression roller is influenced, the working stability of a continuous casting machine is reduced, and a cooling mechanism is required to be designed for the compression roller. Patent number CN202070733U discloses steelmaking continuous casting machine cooling system, including roll table base crossbeam, bearing frame, water inlet, the gap admittedly installs the bearing frame on the roll table base crossbeam, and the bearing frame outside is equipped with the lubricating oil connecting pipe, and the roll table base crossbeam inboard is equipped with the water inlet, and the bearing frame top inboard is equipped with the gap, and the roll table base crossbeam is opened with the upper water gap with the bearing frame junction and is linked together. The patent cools the roll neck, the bearing pedestal and the roller way base cross beam of the rolling mill conveying line through cold water. But the cooled water is thrown away, causing waste and not effective cooling of the press rolls. Therefore, there is a need for an electric steelmaking continuous casting production apparatus that solves the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides an electric furnace steelmaking continuous casting production device, which comprises two support plates, wherein an upper press roll and a lower press roll which are mutually matched are arranged between the two support plates; the cooling assembly comprises two circular baffles, the two circular baffles are respectively fixed at two ends of the lower press roll, a first cold water cavity is arranged in the circular baffles, a second cold water cavity is arranged in the lower press roll, two ends of the lower press roll are respectively fixedly connected with a first water guide pipe, one end of the first water guide pipe is communicated with the second cold water cavity, the other end of the first water guide pipe penetrates through the corresponding circular baffles and then is rotationally connected with a corresponding supporting plate through a bearing, the first cold water cavity is communicated with the first water guide pipe, one water guide pipe is communicated with the first water inlet pipe through a rotary joint, the other water guide pipe is communicated with the first water discharge pipe through a rotary joint, a transmission gear is fixed on the outer wall of the first water guide pipe, a driving gear is meshed with the driving gear, and the driving gear is fixedly connected with an output shaft of a driving motor.

Preferably, the diameter of the circular baffle is larger than the outer diameter of the lower press roll.

Preferably, the upper press roller is rotatably arranged on a support plate above the lower press roller, a cold water cavity III is arranged in the upper press roller, two ends of the upper press roller are respectively fixedly connected with a water guide pipe II, the water guide pipes II are communicated with the cold water cavity III, one water guide pipe II is communicated with the water inlet pipe II through a rotary joint, the other water guide pipe II is communicated with the water outlet pipe II through a rotary joint, a conical gear I is fixed on the outer wall of the one water guide pipe II, the conical gear I is meshed with the conical gear II, and the conical gear II is fixedly connected with an output shaft of the stepping motor.

Preferably, the second water guide pipes at two ends of the upper press roller are connected with the support plate through a moving assembly, the moving assembly comprises a forward and reverse rotating motor, a threaded rod and a moving block, vertical strip-shaped through holes are formed in the support plate, two ends of the threaded rod are respectively connected with two ends of the strip-shaped through holes in a rotating mode through bearings, the upper end of the threaded rod penetrates through the strip-shaped through holes and then is fixedly connected with an output shaft of the forward and reverse rotating motor, the forward and reverse rotating motor is fixed at the upper end of the support plate, the moving block is matched with the strip-shaped through holes, the moving block is arranged in the strip-shaped through holes in a sliding mode and is in threaded fit with the threaded rod, guide grooves are formed in two side walls of the strip-shaped through holes, sliding blocks matched with the guide grooves are fixed on two sides of the moving block, and the sliding blocks are arranged in the guide grooves in a sliding mode;

the second water guide pipe is respectively connected with the corresponding moving block through bearings in a rotating mode, the stepping motor is fixed on the bearing plate, and the bearing plate is fixedly connected with the moving block through a connecting rod.

The utility model also comprises other components which can ensure that the electric furnace steelmaking continuous casting production device is normally used, such as a control component of a stepping motor, a control component of a driving motor, a control component of a forward and reverse rotation motor, a control component (such as a water pump) for controlling water inlet of a water inlet pipe and the like are all conventional technical means in the field. In addition, the devices or components not defined in the present utility model are conventional in the art, such as rotary joints, driving motors, stepping motors, threaded rods, etc.

The working principle of the utility model is as follows: cold water is respectively introduced into the lower press roller and the upper press roller from the first water inlet pipe and the second water inlet pipe and flows out of the first water outlet pipe and the second water outlet pipe, the cold water is continuously introduced into the lower press roller and the upper press roller to effectively cool the lower press roller and the upper press roller, and the temperature of the water flowing out of the first water outlet pipe and the second water outlet pipe after heat exchange can be increased for other purposes or can be recycled after cooling. When cold water is introduced into the lower press roll, the cold water enters the circular baffle plate to cool the circular baffle plate, the circular baffle plate can perform a certain normalization function on the steel billet passing between the lower press roll and the upper press roll, and meanwhile, the side edge of the steel billet is primarily cooled, so that the continuous casting effect is improved;

in the continuous casting process, the distance between the upper compression roller and the lower compression roller can be reasonably adjusted according to the thickness requirement of the billet by synchronous forward and reverse rotation of the two forward and reverse rotation motors, so that the continuous casting production is facilitated.

The utility model has the beneficial effects that the upper compression roller and the lower compression roller can be effectively cooled, the waste of water resources is reduced, the energy is saved, and the cooling efficiency is improved; meanwhile, the side edge of the steel billet can be preliminarily cooled, the distance between the upper pressing roller and the lower pressing roller can be adjusted, and the continuous casting device is suitable for continuous casting operations after different steps and is beneficial to production.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic structural view of an electric furnace steelmaking continuous casting production device of the utility model;

fig. 2 is a partial cross-sectional view of the second inlet pipe of fig. 1.

In the figure: 1. a lower press roll; 2. an upper press roll; 3. a steel billet; 4. a circular baffle; 5. a support plate; 6. a rotary joint; 7. a first water guide pipe; 8. a drain pipe I; 9. a transmission gear; 10. a drive gear; 11. a driving motor; 12. a water inlet and a water outlet; 13. a first water inlet pipe; 14. a forward and reverse rotation motor; 15. a first conical gear; 16. a second bevel gear; 17. a stepping motor; 18. a threaded rod; 19. a moving block; 20. a second water guide pipe; 21. a connecting rod; 22. a carrying plate; 23. a guide groove; 24. a slide block; 25. a second drain pipe; 26. and a water inlet pipe II.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown. All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this utility model.

Examples

As shown in fig. 1-2, the utility model provides an electric furnace steelmaking continuous casting production device, which comprises two support plates 5, wherein an upper press roll 2 and a lower press roll 1 which are mutually matched are arranged between the two support plates 5; the lower press roll 1 is connected with a cooling assembly, the cooling assembly comprises two circular baffles 4, the two circular baffles 4 are respectively fixed at two ends of the lower press roll 1, the circular baffles 4 are vertical to the lower press roll 1, a first cold water cavity is formed in the circular baffles 4, a second cold water cavity is formed in the lower press roll 1, two water guide pipes 7 are respectively fixedly connected to two ends of the lower press roll 1, one end of each water guide pipe 7 is communicated with the second cold water cavity, the other end of each water guide pipe 7 penetrates through the corresponding circular baffles 4 and then is rotationally connected with a corresponding supporting plate 5 through a bearing, the first cold water cavity is communicated with the first water guide pipe 7 through a water inlet and outlet 12, one water guide pipe 7 is communicated with the first water inlet pipe 13 through a rotary joint 6, the other water guide pipe 7 is communicated with the first water outlet pipe 8 through the rotary joint 6, a transmission gear 9 is fixed on the outer wall of the first water guide pipe 7, a driving gear 10 is meshed with a driving gear 10, and the driving gear 10 is fixedly connected with an output shaft of a driving motor 11.

The diameter of the circular baffle 4 is larger than the outer diameter of the lower press roller 1, so that the circular baffle can play a certain role in blocking and rectifying the side edges of the passing billets.

The upper press roll 2 is rotatably arranged on the supporting plate 5 above the lower press roll 1, a cold water cavity III is arranged in the upper press roll 2, two ends of the upper press roll 2 are fixedly connected with a water guide pipe II 20 respectively, the water guide pipe II 20 is communicated with the cold water cavity III, one water guide pipe II 20 is communicated with a water inlet pipe II 26 through a rotary joint, the other water guide pipe II 20 is communicated with a water outlet pipe II 25 through a rotary joint, a conical gear I15 is fixed on the outer wall of one water guide pipe II 20, the conical gear I15 is meshed with a conical gear II 16, and the conical gear II 16 is fixedly connected with an output shaft of the stepping motor 17.

The water guide pipes II 20 at the two ends of the upper press roll 2 are connected with the support plate 5 through a moving assembly, the moving assembly comprises a forward and reverse motor 14, a threaded rod 18 and a moving block 19, vertical strip-shaped through holes are formed in the support plate 5, the two ends of the threaded rod 18 are respectively and rotatably connected with the two ends of the strip-shaped through holes through bearings, the upper end of the threaded rod 18 penetrates through the strip-shaped through holes and then is fixedly connected with an output shaft of the forward and reverse motor 14, the forward and reverse motor 14 is fixed at the upper end of the support plate 5, the moving block 19 is matched with the strip-shaped through holes, the moving block 19 is slidably arranged in the strip-shaped through holes and is in threaded fit with the threaded rod 18, guide grooves 23 are formed in two side walls of the strip-shaped through holes, sliding blocks 24 matched with the guide grooves 23 are fixedly arranged on two sides of the moving block 19, and the sliding blocks 24 are slidably arranged in the guide grooves 23;

the second water guide pipe 20 is respectively and rotatably connected with the corresponding moving block 19 through a bearing, the stepping motor 17 is fixed on a bearing plate 22, and the bearing plate 22 is fixedly connected with the moving block 19 through a connecting rod 21.

The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An electric furnace steelmaking continuous casting production device comprises two support plates, wherein an upper press roll and a lower press roll which are matched with each other are arranged between the two support plates; the method is characterized in that: the cooling assembly comprises two circular baffles, the two circular baffles are respectively fixed at two ends of the lower press roll, a first cold water cavity is arranged in the circular baffles, a second cold water cavity is arranged in the lower press roll, two ends of the lower press roll are respectively fixedly connected with a first water guide pipe, one end of the first water guide pipe is communicated with the second cold water cavity, the other end of the first water guide pipe penetrates through the corresponding circular baffles and then is rotationally connected with a corresponding supporting plate through a bearing, the first cold water cavity is communicated with the first water guide pipe, one water guide pipe is communicated with the first water inlet pipe through a rotary joint, the other water guide pipe is communicated with the first water discharge pipe through a rotary joint, a transmission gear is fixed on the outer wall of the first water guide pipe, a driving gear is meshed with the driving gear, and the driving gear is fixedly connected with an output shaft of a driving motor.

2. The electric steelmaking continuous casting production device as claimed in claim 1, wherein: the diameter of the circular baffle is larger than the outer diameter of the lower pressing roller.

3. The electric steelmaking continuous casting production device as claimed in claim 1, wherein: the upper press roller is rotatably arranged on a supporting plate above the lower press roller, a cold water cavity III is formed in the upper press roller, two ends of the upper press roller are fixedly connected with a water guide pipe II respectively, the water guide pipe II is communicated with the cold water cavity III, one water guide pipe II is communicated with the water inlet pipe II through a rotary joint, the other water guide pipe II is communicated with the water outlet pipe II through a rotary joint, a conical gear I is fixed on the outer wall of the one water guide pipe II, the conical gear I is meshed with the conical gear II, and the conical gear II is fixedly connected with an output shaft of the stepping motor.

4. A continuous casting production apparatus for electric steelmaking according to claim 3, wherein: the second water guide pipes at two ends of the upper press roller are connected with the support plate through the moving assembly, the moving assembly comprises a forward and reverse rotating motor, a threaded rod and a moving block, vertical strip-shaped through holes are formed in the support plate, two ends of the threaded rod are respectively connected with two ends of the strip-shaped through holes in a rotating mode through bearings, the upper end of the threaded rod penetrates through the strip-shaped through holes and then is fixedly connected with an output shaft of the forward and reverse rotating motor, the forward and reverse rotating motor is fixed at the upper end of the support plate, the moving block is matched with the strip-shaped through holes, the moving block is arranged in the strip-shaped through holes in a sliding mode and is in threaded fit with the threaded rod, guide grooves are formed in two side walls of the strip-shaped through holes, and sliding blocks matched with the guide grooves are fixed on two sides of the moving block and are arranged in the guide grooves in a sliding mode.