Roller cooling device for low-temperature profile steel production

Abstract

The utility model belongs to the technical field of steel rolling production equipment, and discloses a roller cooling device for low-temperature profile steel production, which comprises a fixing frame, a water inlet pipe, a fixing plate and two water conveying pipes, the two water conveying pipes are rotatably mounted on one side of the fixing frame in parallel up and down at intervals, and the fixing plate is arranged on the fixing frame and located between the two water conveying pipes. The upper side and the lower side of the fixing plate are both provided with telescopic rods used for adjusting the rotating angles of the two water conveying pipes, the two water conveying pipes are connected with a water inlet pipe, each water conveying pipe is evenly connected with two or more water outlet pipes at intervals in the length direction of the water conveying pipe, and a nozzle is arranged at the end of each water outlet pipe. By adjusting the length of the telescopic rod, the water conveying pipes rotate in the arc-shaped clamping grooves, so that the inclination angles and the water outlet directions of all the water outlet pipes on each water conveying pipe are adjusted, the cooling requirements of rollers of low-temperature section steel of different specifications are met, the cooling effect is improved, the service life of the rollers is prolonged, and the product quality of the low-temperature section steel is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rolling steel production equipment, and particularly relates to a roll cooling device for low-temperature section steel production. Background Technique

[0002] FH36 low-temperature section steel is a kind of low-alloy steel with high strength and high toughness, which can maintain good toughness in low-temperature environments and avoid safety accidents caused by brittle fracture. It is widely used in the field of ocean engineering. During the hot rolling process of FH36 low-temperature section steel, due to the high temperature during rolling, sufficient cooling water is required to cool the rolls, so as to improve the service life of the rolls.

[0003] The existing roll cooling devices usually include a water inlet pipe and two rows of water outlet pipes. The two rows of water outlet pipes are respectively arranged on one side of the upper and lower rolls and are both connected to the water inlet pipe. Nozzles are arranged on one side of each water outlet pipe facing the roll. The cooling water enters each water outlet pipe from the water inlet pipe and is sprayed onto the upper and lower rolls by the nozzles for cooling. The roll sizes used for different specifications of low-temperature section steel are also different. After the roll diameter changes, since the positions of the existing water outlet pipes are fixed and their tilting angles and water outlet directions cannot be adjusted, the cooling effect of the rolls is affected, and cracks appear on the roll surface, which not only reduces its service life but also affects the surface quality of the products. Therefore, it is urgent to optimize the structure of the roll cooling device so that the water outlet direction of the water outlet pipe can be freely adjusted to meet the roll cooling requirements of different specifications of low-temperature section steel and improve its cooling effect. Content of the Utility Model

[0004] Aiming at the deficiencies in the background technique, the utility model provides a roll cooling device for low-temperature section steel production, which can adjust the tilting angle and water outlet direction of the water outlet pipe as needed to meet the roll cooling requirements of different specifications of low-temperature section steel, improve its cooling effect, extend the service life of the rolls, and improve the product quality of low-temperature section steel.

[0005] To achieve the above object, the technical solution of the utility model is as follows:

[0006] A roll cooling device for low-temperature section steel production, characterized in that: it includes a fixed frame, a water inlet pipe, a fixed plate and two water delivery pipes. The two water delivery pipes are rotatably installed at intervals in parallel up and down on one side of the fixed frame. The fixed plate is arranged on the fixed frame and is located between the two water delivery pipes. Telescopic rods for adjusting the rotation angles of the two water delivery pipes are arranged on both the upper and lower sides of the fixed plate. The two water delivery pipes are connected to the water inlet pipe. More than two water outlet pipes are evenly spaced along the length direction of each water delivery pipe, and nozzles are arranged at the ends of each water outlet pipe.

[0007] Preferably, the number of the fixing plates is two, and the two fixing plates are respectively arranged at two ends of the fixing frame. An expansion link is hinged between each fixing plate and the water outlet pipes at the corresponding ends of the two water delivery pipes.

[0008] Preferably, the expansion link includes a hollow pipe and a movable rod. One end of the movable rod is arranged inside the hollow pipe and fixed by a locking screw arranged on the hollow pipe.

[0009] Preferably, a fixing seat is arranged between each water delivery pipe and the fixing frame. The fixing seat is arranged on the fixing frame, and an arc-shaped clamping groove matched with the water delivery pipe is arranged on one side of the fixing seat. Each water delivery pipe is rotatably connected with the arc-shaped clamping groove.

[0010] Preferably, a pointer is arranged on each water delivery pipe at the fixing seat, and the pointer cooperates with the scale line arranged on the outer periphery of the arc-shaped clamping groove.

[0011] Preferably, a plug is arranged at one end of each water delivery pipe, and a water distribution pipe is connected to the other end through a rotary joint. The water distribution pipe is connected to the water inlet pipe.

[0012] Preferably, the water distribution pipe and the water inlet pipe are connected by bolt assembly through two flange plates, and two sealing washers are arranged between the two flange plates.

[0013] Preferably, the number of the sealing washers is two, and a filter screen is arranged between the two sealing washers.

[0014] Preferably, a flow meter is arranged at one end of the water distribution pipe close to the filter screen.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] (1) By adjusting the length of the expansion link, the utility model rotates the water delivery pipe in the arc-shaped clamping groove, so as to adjust the inclination angle and the water outlet direction of all the water outlet pipes on each water delivery pipe, so as to meet the cooling requirements of the rolls of low-temperature steel of different specifications, improve the cooling effect, prolong the service life of the rolls, and improve the product quality of the low-temperature steel;

[0017] (2) By adding a filter screen, the utility model can effectively filter the impurities in the cooling water, avoid blocking the nozzles, and the filter screen can be removed, replaced and maintained regularly, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the utility model will become more obvious.

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 This is a schematic side view structure diagram of the utility model;

[0021] Figure 3 For the utility model Figure 2 The enlarged structure schematic diagram at position A;

[0022] In the figure: 1. Fixed frame, 2. Water inlet pipe, 3. Fixed plate, 4. Water delivery pipe, 5. Telescopic rod, 501. Hollow pipe, 502. Movable rod, 503. Locking screw, 6. Water outlet pipe, 7. Nozzle, 8. Fixed seat, 801. Arc-shaped clamping groove, 9. Pointer, 10. Scale line, 11. Plug, 12. Water distribution pipe, 13. Flange, 14. Bolt, 15. Sealing washer, 16. Filter screen, 17. Flowmeter, 18. Roller, 19. Rotary joint. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "middle part", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] In the present utility model, unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Such as Figure 1 And Figure 2As shown in the figure, a roll cooling device for low-temperature steel production includes a fixed frame 1, a water inlet pipe 2, a fixed plate 3, and two water delivery pipes 4. The fixed frame is installed on one side of the upper and lower rolls 18 and consists of two columns. The two water delivery pipes are rotatably installed at intervals parallel to each other up and down on one side of the fixed frame. The fixed plate is arranged on the fixed frame and located between the two water delivery pipes. Telescopic rods 5 for adjusting the rotation angles of the two water delivery pipes are provided on both the upper and lower sides of the fixed plate. The two water delivery pipes are connected to the water inlet pipe. More than two water outlet pipes 6 are evenly spaced along the length direction of each water delivery pipe. Nozzles 7 are provided at the ends of each water outlet pipe. By adjusting the length of the telescopic rod, the rotation angle of the corresponding water delivery pipe is controlled, so as to change the inclination direction of the water outlet pipe and the water spraying direction of the nozzle, so as to meet the cooling requirements of rolls for the production of low-temperature steel of different specifications FH36.

[0027] As Figure 2 shown, the number of fixed plates is two, and the two fixed plates are respectively arranged at both ends of the fixed frame (one fixed plate is provided on each column). A telescopic rod is hinged between each fixed plate and the water outlet pipe at the corresponding end of the two water delivery pipes, that is, the end of each telescopic rod is hinged to the outermost water outlet pipe at both ends of the corresponding water delivery pipe, and telescopic rods are hinged at both ends of each water delivery pipe. Specifically, the telescopic rod includes a hollow pipe 501 and a movable rod 502. One end of the movable rod is arranged inside the hollow pipe and fixed by a locking screw 503 provided on the hollow pipe. When the length of the telescopic rod is adjusted, the locking screw can be tightened to fix its length.

[0028] Combined with Figure 1 shown in the figure, a fixed seat 8 is provided between each water delivery pipe and the fixed frame. The fixed seat is assembled to the fixed frame by bolts 14, which is convenient for disassembly and assembly. An arc-shaped card slot 801 matching the water delivery pipe is provided on one side of the fixed seat. Each water delivery pipe is rotatably connected to the arc-shaped card slot. Both sides of the arc-shaped card slot have a certain elasticity. When the water delivery pipe is embedded in the arc-shaped card slot, it fits on the surface of the arc-shaped card slot, but the water delivery pipe can rotate freely in the arc-shaped card slot, which is convenient for adjusting the water outlet direction. When the water delivery pipe needs to be replaced or repaired, the water delivery pipe can be removed from the arc-shaped card slot, which is convenient to use. In order to improve the accuracy of angle adjustment, a pointer 9 is provided at the fixed seat of each water delivery pipe, and the pointer cooperates with the scale line 10 provided on the outer circumference of the arc-shaped card slot.

[0029] As Figure 2 and Figure 3As shown in the figure, a plug 11 is provided at one end of each water delivery pipe, and a water distribution pipe 12 is connected to the other end through a rotary joint 19. The rotary joint can prevent the water distribution pipe from being affected when the water delivery pipe rotates. The water distribution pipe is connected to the water inlet pipe. Cooling water enters the water distribution pipe from the water inlet pipe. The water distribution pipe is Y-shaped and divides the cooling water into two water delivery pipes. Then, the cooling water further passes through the water outlet pipes on each water delivery pipe and is sprayed onto the surface of the roll through the nozzles to cool the roll. To facilitate the disassembly and assembly of the pipeline, the water distribution pipe and the water inlet pipe are bolted and assembled through two flange plates 13. Two sealing washers 15 are provided between the two flange plates to ensure their sealing performance. The number of sealing washers is two. A filter screen 16 is provided between the two sealing washers to filter impurities in the cooling water. A flow meter 17 is provided at one end of the water distribution pipe near the filter screen to observe the flow rate of the cooling water after passing through the filter screen. When the filter screen has been used for a period of time and the water flow rate decreases, the filter screen needs to be removed, cleaned, or replaced.

[0030] The working principle of the present utility model is as follows:

[0031] As Figure 1 and Figure 2 shown in the figure, the fixing frame 1 of the present utility model is fixedly installed on one side of the upper and lower rolls 18 of the rolling mill, and the fixing plate 3 is located at the middle position between the upper and lower rolls 18. According to the actual situation of the roll, adjust the length of the telescopic rod 5, rotate the water delivery pipe 4, and change the inclination angle and water outlet direction of the water outlet pipe 6 so that the water outlet pipes 6 on the two water delivery pipes 4 are respectively aligned with the corresponding rolls 18. After adjustment, tighten the locking screw 503. During operation, the cooling water enters from the water inlet pipe 2, passes through the filtration of the filter screen 16, is divided into two water delivery pipes 4 by the water distribution pipe 12, and then is sprayed onto the surface of the roll 18 through the water outlet pipes 6 and nozzles 7 on each water delivery pipe 4 to cool the roll 18.

[0032] The above shows and describes the basic principles, main features, and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A roll cooling device for low-temperature steel production, characterized in that: It includes a fixing frame, a water inlet pipe, a fixing plate and two water delivery pipes. The two water delivery pipes are rotatably installed at one side of the fixing frame in parallel at an upper and lower interval. The fixing plate is arranged on the fixing frame and located between the two water delivery pipes. Telescopic rods for adjusting the rotation angles of the two water delivery pipes are arranged on both the upper and lower sides of the fixing plate. The two water delivery pipes are connected to the water inlet pipe. More than two water outlet pipes are evenly spaced along the length direction of each water delivery pipe. Nozzles are arranged at the ends of each water outlet pipe.

2. The roll cooling device for low-temperature steel production according to claim 1, characterized in that: The number of the fixing plates is two. The two fixing plates are respectively arranged at both ends of the fixing frame. Telescopic rods are hinged between each fixing plate and the water outlet pipes at the corresponding ends of the two water delivery pipes.

3. The roll cooling device for low-temperature steel production according to claim 2, characterized in that: The telescopic rod includes a hollow pipe and a movable rod. One end of the movable rod is arranged in the hollow pipe and fixed by a locking screw arranged on the hollow pipe.

4. A roll cooling device for low-temperature steel production according to claim 1, characterized in that: A fixing seat is arranged between each water delivery pipe and the fixing frame. The fixing seat is arranged on the fixing frame, and an arc-shaped clamping groove matching with the water delivery pipe is arranged on one side of the fixing seat. Each water delivery pipe is rotatably connected with the arc-shaped clamping groove.

5. The roll cooling device for low-temperature steel production according to claim 4, wherein: A pointer is arranged at each water delivery pipe at the fixing seat. The pointer cooperates with the scale line arranged on the outer periphery of the arc-shaped clamping groove.

6. The roll cooling device for low-temperature steel production according to claim 1, characterized in that: A plug is arranged at one end of each water delivery pipe, and a water distribution pipe is connected to the other end through a rotary joint. The water distribution pipe is connected to the water inlet pipe.

7. A roll cooling device for low-temperature steel production according to claim 6, characterized in that: The water distribution pipe and the water inlet pipe are connected by bolt assembly through two flange plates. Two sealing washers are arranged between the two flange plates.

8. The roll cooling device for low-temperature steel production according to claim 7, characterized in that: The number of the sealing washers is two. A filter screen is arranged between the two sealing washers.

9. The roll cooling device for low-temperature steel production according to claim 8, characterized in that: A flow meter is arranged at one end of the water distribution pipe close to the filter screen.

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