Hot mill reel cooling device

Abstract

The invention discloses a hot mill reel cooling device, and relates to the technical field of aluminum alloy coiled material production. The problems that when an existing hot mill is used for producing aluminum alloy coiled materials, aluminum is prone to adhering to a reel, so that the reel is difficult to unload, and the product quality is affected are solved. The device comprises a cooling injection beam, a cooling injection main pipeline, an air path purging pipeline, a purging pneumatic ball valve, an emulsion supply pipeline, an emulsion pneumatic ball valve and a nozzle, the cooling injection beam is located above a hot mill reel, one end of the cooling injection beam is connected with the top end of a hot mill reduction gearbox, and the nozzle is arranged at the tail end of the cooling injection main pipeline installed on the cooling injection beam. An air path purging inlet and an emulsion supply inlet are formed in the head end of the cooling injection main pipeline, the air path purging inlet and the emulsion supply inlet are connected with the tail end of an air path purging pipeline and the tail end of an emulsion supply pipeline respectively, and the head end of the air path purging pipeline and the head end of the emulsion supply pipeline are connected with an air feeder and a liquid supply pump respectively. The device is used for cooling and lubricating the reel of the high-temperature hot mill without causing product corrosion.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy coil production, and in particular to a hot rolling mill reel cooling device. Background Art

[0002] Hot rolling mill is one of the important equipment for producing aluminum alloy coils. After high-end aluminum alloy coils are rolled up by hot rolling mill, the coil temperature is as high as over 200℃. Long-term production can easily cause aluminum to stick to the coil, which makes it difficult to unload the coil and affects product quality. After investigation, it was found that cooling the coil with emulsion can form an oil film on the surface of the coil, thereby reducing the phenomenon of aluminum sticking to the coil. At the same time, purging the cooling device after the coil is spray-cooled can prevent the emulsion from dripping onto the material surface, effectively preventing corrosion. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that when an existing hot rolling mill produces aluminum alloy coils, the coil is prone to aluminum sticking, which makes it difficult to unload the coil and affects product quality, and further provide a hot rolling mill coil cooling device.

[0004] The technical solution of the present invention is:

[0005] A hot rolling mill reel cooling device comprises a cooling spray beam 1, a cooling spray main line 2, an air purging line 3, a purge pneumatic ball valve 4, an emulsion supply line 5, an emulsion pneumatic ball valve 6 and a nozzle 7. The cooling spray beam 1 is arranged directly above the hot rolling mill reel 100. One end of the cooling spray beam 1 is fixedly connected to the top of the hot rolling mill reducer 200. The cooling spray main line 2 is installed on the cooling spray beam 1. The end of the cooling spray main line 2 is provided with a nozzle 7. The head end of the cooling spray main line 2 is provided with an air purging inlet and an emulsion supply inlet. The air purging inlet and the emulsion supply inlet are respectively connected to the ends of the air purging line 3 and the emulsion supply line 5. The head ends of the air purging line 3 and the emulsion supply line 5 are respectively connected to the blower and the liquid supply pump.

[0006] Furthermore, it also includes a purge control copper ball valve 8 and an emulsion control copper ball valve 9, which are respectively installed on the air path purge pipeline 3 and the emulsion supply pipeline 5.

[0007] Furthermore, there are multiple nozzles 7, and multiple nozzles 7 are sequentially arranged at the end of the cooling spray main passage 2 from front to back along the length direction of the cooling spray main passage.

[0008] Further, the plurality of nozzles 7 are arranged toward the hot rolling mill reel 100 .

[0009] Furthermore, the cooling spray beam 1 includes an end supporting crossbeam 101, two end supporting longitudinal beams 102 and two end fixing seats 103. The end supporting crossbeam 101 is horizontally arranged above the hot rolling mill reel 100 and the hot rolling mill reducer 200. Two end supporting longitudinal beams 102 are vertically arranged below the end of the end supporting crossbeam 101. The top ends of the two end supporting longitudinal beams 102 are connected to the end supporting crossbeam 101, and the bottom ends of the two end supporting longitudinal beams 102 are respectively connected to the two end fixing seats 103. The two end fixing seats 103 are installed at the top of the hot rolling mill reducer 200.

[0010] Furthermore, the two end supporting longitudinal beams 102 are arranged corresponding to the air duct purge pipeline 3 and the emulsion supply pipeline 5 , respectively, and the air duct purge pipeline 3 and the emulsion supply pipeline 5 are installed on the two end supporting longitudinal beams 102 .

[0011] Furthermore, it also includes a beam fixing device 10, which is arranged at the head end of the cooling spray beam 1.

[0012] Furthermore, the beam fixing device 10 includes a U-shaped support box 1001, four head end connecting cross beams, four head end connecting longitudinal beams 1002 and four head end connecting seats 1003. The U-shaped support box 1001 is arranged at the hot rolling mill reel 100, and the web of the U-shaped support box 1001 is horizontally arranged on the ground below the hot rolling mill reel 100. The wing plates on both sides of the U-shaped support box 1001 are vertically arranged on both sides of the hot rolling mill reel 100, respectively. The four head end connecting longitudinal beams 1002 are vertically arranged in pairs on the outer surfaces of the wing plates on both sides of the U-shaped support box 1001. Four head end connecting seats 1003 are installed on the top of the four head end connecting longitudinal beams 1002. One end of the four head end connecting cross beams is connected to the four head end connecting seats 1003, and the other end of the four head end connecting cross beams is fixedly connected to the two side surfaces of the head end of the cooling spray beam 1.

[0013] Compared with the prior art, the present invention has the following effects:

[0014] 1. The hot rolling mill reel cooling device of the present invention can effectively prevent the emulsion dripping from the nozzle during the rolling process from causing product corrosion, and can realize cooling and lubrication of the reel in the rolling gap. By designing the reel emulsion spraying beam, the emulsion cooling device and the wind blowing switch, high-temperature reel cooling and lubrication can be realized without causing product corrosion.

[0015] 2. The hot rolling mill coil cooling device of the present invention has significant economic benefits. After the transformation, the downtime can be reduced by 2 hours per month, 3 pieces of material can be produced per hour, each piece of material is 8 tons on average, the process yield rate is 98%, and the monthly production is increased by 3*8*2=48 tons. The process cost is 514 yuan / ton, and the reduction of process cost increases the profit by 48*12*(514 / 0.98)=302,100 yuan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the hot rolling mill coil cooling device of the present invention.

[0017] Figure 2 It is a schematic diagram of the pipeline arrangement in the hot rolling mill coil cooling device of the present invention.

[0018] In the figure: 1. Cooling spray beam; 2. Cooling spray main line; 3. Air duct purge line; 4. Purge pneumatic ball valve; 5. Emulsion supply line; 6. Emulsion pneumatic ball valve; 7. Nozzle; 8. Purge control copper ball valve; 9. Emulsion control copper ball valve; 101. End support crossbeam; 102. End support longitudinal beam; 103. End fixing seat; 1001. U-shaped support box; 1002. Head end connecting longitudinal beam; 1003. Head end connecting seat; 100. Hot rolling mill reel; 200. Hot rolling mill reducer. DETAILED DESCRIPTION

[0019] Specific implementation method 1: Combination Figure 1 and Figure 2 The present embodiment is described. A hot rolling mill reel cooling device according to the present embodiment comprises a cooling spray beam 1, a cooling spray main line 2, an air purging line 3, a purging pneumatic ball valve 4, an emulsion supply line 5, an emulsion pneumatic ball valve 6 and a nozzle 7. The cooling spray beam 1 is arranged directly above the hot rolling mill reel 100. One end of the cooling spray beam 1 is fixedly connected to the top of the hot rolling mill reducer 200. The cooling spray main line 2 is installed on the cooling spray beam 1. A nozzle 7 is arranged at the end of the cooling spray main line 2. An air purging inlet and an emulsion supply inlet are opened at the head end of the cooling spray main line 2. The air purging inlet and the emulsion supply inlet are respectively connected to the ends of the air purging line 3 and the emulsion supply line 5. The head ends of the air purging line 3 and the emulsion supply line 5 are respectively connected to the air blower and the liquid supply pump.

[0020] Specific implementation method 2: Combination Figure 1 and Figure 2 This embodiment is described. This embodiment also includes a purge control copper ball valve 8 and an emulsion control copper ball valve 9, which are respectively installed on the air path purge pipeline 3 and the emulsion supply pipeline 5. In this way, the purge control copper ball valve 8 and the emulsion control copper ball valve 9 are manually controlled valves, which are respectively installed on the air path purge pipeline 3 and the emulsion supply pipeline 5. When the purge pneumatic ball valve 4 and the emulsion pneumatic ball valve 6 are damaged or cannot work normally, the purge control copper ball valve 8 and the emulsion control copper ball valve 9 can ensure the normal operation of the device. Other components and connection relationships are the same as those of the specific embodiment 1.

[0021] Specific implementation method three: Combination Figure 1 and Figure 2To explain this embodiment, the number of nozzles 7 in this embodiment is multiple, and multiple nozzles 7 are sequentially arranged from front to back along the length direction of the cooling spray main line 2 at the end of the cooling spray main line. In this way, multiple nozzles 7 are arranged in sequence from front to back along the length direction of the hot rolling mill reel at equal intervals, which can achieve uniform coverage of the emulsion on the surface of the hot rolling mill reel 100, thereby improving the cooling effect of the emulsion on the hot rolling mill reel 100. Other components and connection relationships are the same as those of the specific embodiment one or two.

[0022] Specific implementation method four: Combination Figure 1 and Figure 2 To explain this embodiment, the plurality of nozzles 7 of this embodiment are all arranged toward the hot rolling mill reel 100. Other components and connection relationships are the same as those of the first, second or third specific embodiments.

[0023] Specific implementation method five: Combination Figure 1 and Figure 2 To explain this embodiment, the cooling spray beam 1 of this embodiment includes an end support beam 101, two end support longitudinal beams 102 and two end fixing seats 103. The end support beam 101 is horizontally arranged above the hot rolling mill reel 100 and the hot rolling mill reducer 200. Two end support longitudinal beams 102 are arranged vertically below the end of the end support beam 101. The top ends of the two end support longitudinal beams 102 are connected to the end support beam 101, and the bottom ends of the two end support longitudinal beams 102 are respectively connected to the two end fixing seats 103. The two end fixing seats 103 are installed on the top of the hot rolling mill reducer 200. Other components and connection relationships are the same as those of the specific embodiments one, two, three or four.

[0024] Specific implementation method six: Combination Figure 1 and Figure 2 To explain this embodiment, the two end support longitudinal beams 102 of this embodiment are arranged corresponding to the air duct purge pipeline 3 and the emulsion supply pipeline 5, respectively, and the air duct purge pipeline 3 and the emulsion supply pipeline 5 are installed on the two end support longitudinal beams 102. In this way, the end support cross beam 101 is used to fix the cooling spray beam 1; the two end support longitudinal beams 102 are used to fix the air duct purge pipeline 3 and the emulsion supply pipeline 5. Other components and connection relationships are the same as those of the specific embodiments one, two, three, four or five.

[0025] Specific implementation method seven: Combination Figure 1 and Figure 2 To explain this embodiment, this embodiment also includes a beam fixing device 10, which is arranged at the head end of the cooling spray beam 1. In this way, the beam fixing device 10 is used to support the cooling spray beam 1. Other components and connection relationships are the same as those of the specific embodiments one, two, three, four, five or six.

[0026] Specific implementation method eight: Combination Figure 1and Figure 2 To illustrate this embodiment, the beam fixing device 10 of this embodiment includes a U-shaped support box 1001, four head end connecting cross beams, four head end connecting longitudinal beams 1002 and four head end connecting seats 1003. The U-shaped support box 1001 is arranged at the hot rolling mill reel 100, and the web of the U-shaped support box 1001 is horizontally arranged on the ground below the hot rolling mill reel 100. The wing plates on both sides of the U-shaped support box 1001 are vertically arranged on both sides of the hot rolling mill reel 100 respectively. The four head end connecting longitudinal beams 1002 are vertically arranged in pairs on the outer surfaces of the wing plates on both sides of the U-shaped support box 1001. Four head end connecting seats 1003 are installed on the top of the four head end connecting longitudinal beams 1002. One end of the four head end connecting cross beams is connected to the four head end connecting seats 1003, and the other end of the four head end connecting cross beams is fixedly connected to the two side surfaces of the head end of the cooling spray beam 1. In this way, the U-shaped support box 1001 can simultaneously collect the emulsion and support the beam fixing device 10. Other components and connection relationships are the same as those of the specific embodiments one, two, three, four, five, six or seven.

[0027] How it works

[0028] Combination Figure 1 and Figure 2 The working principle of the hot rolling mill reel cooling device of the present invention is described as follows: after each coil is rolled and leaves the hot rolling mill reel 100, the emulsion pneumatic ball valve 6 on the emulsion supply pipeline 5 is energized, the emulsion supply pipeline 5 is connected, and the hot rolling mill reel 100 rotates under the drive of the hot rolling mill reducer 200. The emulsion in the storage tank enters the cooling injection main pipeline 2 under the action of the liquid supply pump, and then forms a fan-shaped surface through the nozzle 7. The surface of the hot rolling mill reel 100 is cooled by spraying for 50 seconds to cover the entire hot rolling mill reel 100. After the 50-second spraying operation is completed, the emulsion pneumatic ball valve 6 is powered off and the valve is closed. The purge pneumatic ball valve 4 on the air path purge pipeline 3 is opened, and the air enters the cooling spray main pipeline 2 under the action of the blower. The wind purges in the cooling spray main pipeline 2 for 30 seconds to spray out the residual emulsion in the cooling spray main pipeline 2 to prevent the residual emulsion from dripping onto the product surface during production. After the 30-second purge operation is completed, the purge pneumatic ball valve 4 is powered off and the valve is closed.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hot rolling mill coil cooling device, characterized in that: The invention comprises a cooling spray beam (1), a cooling spray main line (2), an air path purge line (3), a purge pneumatic ball valve (4), an emulsion supply line (5), an emulsion pneumatic ball valve (6) and a nozzle (7). The cooling spray beam (1) is arranged directly above a hot rolling mill reel (100). One end of the cooling spray beam (1) is fixedly connected to the top of a hot rolling mill reducer (200). The cooling spray main line (2) is installed on the cooling spray beam (1). The end of the cooling spray main line (2) is provided with a nozzle (7). The head end of the cooling spray main line (2) is provided with an air path purge inlet and an emulsion supply inlet. The air path purge inlet and the emulsion supply inlet are respectively connected to the ends of the air path purge line (3) and the emulsion supply line (5). The head ends of the air path purge line (3) and the emulsion supply line (5) are respectively connected to a blower and a liquid supply pump.

2. A hot rolling mill coil cooling device according to claim 1, characterized in that: It also includes a purge control copper ball valve 8 and an emulsion control copper ball valve 9, which are respectively installed on the air path purge pipeline (3) and the emulsion supply pipeline (5).

3. A hot rolling mill coil cooling device according to claim 2, characterized in that: There are a plurality of nozzles (7), and the end of the cooling spray main passage (2) is provided with a plurality of nozzles (7) in sequence from front to back along the length direction of the cooling spray main passage.

4. A hot rolling mill coil cooling device according to claim 3, characterized in that: A plurality of nozzles (7) are arranged toward the hot rolling mill reel (100).

5. A hot rolling mill coil cooling device according to claim 1 or 4, characterized in that: The cooling spray beam (1) comprises an end support crossbeam (101), two end support longitudinal beams (102) and two end fixing seats (103); the end support crossbeam (101) is horizontally arranged above the hot rolling mill reel (100) and the hot rolling mill reducer (200); two end support longitudinal beams (102) are vertically arranged below the end of the end support crossbeam (101); the top ends of the two end support longitudinal beams (102) are connected to the end support crossbeam (101); the bottom ends of the two end support longitudinal beams (102) are respectively connected to the two end fixing seats (103); and the two end fixing seats (103) are installed at the top end of the hot rolling mill reducer (200).

6. A hot rolling mill coil cooling device according to claim 5, characterized in that: The two end supporting longitudinal beams (102) are arranged corresponding to the air duct purge pipeline (3) and the emulsion supply pipeline (5), respectively, and the air duct purge pipeline (3) and the emulsion supply pipeline (5) are installed on the two end supporting longitudinal beams (102).

7. A hot rolling mill coil cooling device according to claim 6, characterized in that: It also comprises a beam fixing device (10), which is arranged at the head end of the cooling spray beam (1).

8. A hot rolling mill coil cooling device according to claim 7, characterized in that: The beam fixing device (10) comprises a U-shaped support box (1001), four head-end connecting cross beams, four head-end connecting longitudinal beams (1002) and four head-end connecting seats (1003). The U-shaped support box (1001) is arranged at the hot rolling mill reel (100). The web of the U-shaped support box (1001) is horizontally arranged on the ground below the hot rolling mill reel (100). The wing plates on both sides of the U-shaped support box (1001) are respectively arranged vertically. Placed on both sides of the hot rolling mill reel (100), four head-end connecting longitudinal beams (1002) are arranged vertically opposite to each other on the outer surfaces of the wing plates on both sides of the U-shaped support box (1001), four head-end connecting seats (1003) are installed on the top of the four head-end connecting longitudinal beams (1002), one end of the four head-end connecting cross beams is connected to the four head-end connecting seats (1003), and the other ends of the four head-end connecting cross beams are fixedly connected to the two side surfaces of the head end of the cooling spray beam (1).

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