Anti-freezing device for temper mill equipment of continuous annealing unit in winter

Abstract

The utility model discloses a winter continuous annealing unit temper mill equipment anti-freezing device, and belongs to the technical field of temper mill auxiliary equipment, the winter continuous annealing unit temper mill equipment anti-freezing device comprises a heat inlet pipe, a flow divider and a unit heat pipe, the heat inlet pipe is connected to an air inlet of the flow divider, and the unit heat pipe is connected to an air outlet of the flow divider; the ends, deviating from the flow divider, of the unit heat pipes are connected to the outer side face, on the transmission side, of the temper mill. Waste heat of the annealing furnace is output to the transmission side in the temper mill in a hot air mode through the hot air pipe, the separator and the unit heat pipe, generation of ice blocks in the temper mill is reduced, therefore, damage to the surface of strip steel is reduced, and the quality of the strip steel is improved.

Description

Technical Field

[0001] This application relates to the technical field of auxiliary equipment for a planishing mill, and in particular discloses an anti-freezing device for a planishing mill in a continuous annealing unit in winter. Background Art

[0002] The planishing mill is especially applicable to a strip planishing mill and a cold rolling skin pass mill. The strip after recrystallization annealing and galvanizing often needs to be planished to endow the strip with necessary properties and surface quality to meet the requirements of subsequent processing. For the planishing mill on a continuous hot-dip galvanizing unit, planishing is essentially a rolling deformation with a small reduction.

[0003] When the temperature at night in winter drops below -4°C, the small liquid water droplets generated by the wet planishing system of the planishing mill disperse to the hydraulic cylinders and thin oil lubrication pipelines on the operator side and the drive side of the planishing mill, as well as the auxiliary roll bearing seats, resulting in ice formation, causing the roll system to run smoothly, forming a speed difference between the strip speed and the roller table speed, resulting in scratches on the strip surface, affecting the equipment operation and product quality. Utility Model Content

[0004] In order to reduce the damage to the strip surface, this application provides an anti-freezing device for a planishing mill in a continuous annealing unit in winter.

[0005] An anti-freezing device for a planishing mill in a continuous annealing unit in winter provided by this application adopts the following technical solutions:

[0006] An anti-freezing device for a planishing mill in a continuous annealing unit in winter includes an inlet heat pipe, a shunt, and unit heat pipes. The inlet heat pipe is connected to the air inlet of the shunt, the unit heat pipes are connected to the air outlet of the shunt, and the end of the unit heat pipe away from the shunt is connected to the outer side of the planishing mill on the drive side.

[0007] By adopting the above technical solutions, the waste heat of the annealing furnace is output to the drive side inside the planishing mill in the form of hot air through the hot air pipe, the separator, and the unit heat pipes, reducing the generation of ice inside the planishing mill, thereby reducing the damage to the strip surface and improving the quality of the strip.

[0008] Optionally, it further includes a filtering mechanism. The filtering mechanism includes a box body and a filter plate. The box body is connected to the air inlet of the inlet heat pipe, the filter plate is fixed inside the box body, and a plurality of air holes are formed on the filter plate.

[0009] By adopting the above technical solutions, impurities in the hot air are filtered through the filtering mechanism, reducing the entry of impurities into the planishing mill, thereby reducing the damage to the internal structure of the planishing mill and the strip by the impurities, improving the service life of the planishing mill, and at the same time improving the quality of the strip.

[0010] Optionally, the filtering mechanism further includes a dust scraping assembly, which includes a dust scraping plate, a hydraulic cylinder, and a dust collection box. The dust scraping plate is slidably connected to the inside of the box body, the dust scraping plate abuts against the filter plate, the hydraulic cylinder is fixed on the top of the box body, and the telescopic end of the hydraulic cylinder passes through the box body and is fixed to the dust scraping plate. An air outlet is formed at the bottom of the box body, and the dust collection box is fixed at the air outlet of the box body.

[0011] By adopting the above technical solution, the impurities on the surface of the filter plate can be scraped off by the dust scraping assembly, which is beneficial to the long-term use of the filter plate, and thus facilitates the long-term use of the antifreeze device.

[0012] Optionally, side convex plates are fixed on both sides of the dust collection box, and the side convex plates are fixed on the box body by bolts.

[0013] By adopting the above technical solution, the side convex plates are provided to facilitate the fixing of the dust collection box on the box body and the installation or disassembly of the dust collection box.

[0014] Optionally, an installation opening is formed on the side of the dust collection box, and a transparent plate is fixed at the installation opening of the dust collection box.

[0015] By adopting the above technical solution, the staff can observe the impurities inside the dust collection box through the transparent plate, so as to facilitate the timely cleaning of the impurities in the dust collection box.

[0016] Optionally, a flange is fixed at one end of the unit heat pipe away from the flow divider, and the flange is fixed in the planishing machine by bolts.

[0017] By adopting the above technical solution, the flange is provided to facilitate the connection between the unit heat pipe and the planishing machine, so as to facilitate the hot air in the unit heat pipe to flow into the planishing machine.

[0018] Optionally, an installation groove is formed in the planishing machine at the position of the unit heat pipe, a sealing ring is installed in the installation groove, and after the flange is installed, the flange abuts against the end face of the sealing ring.

[0019] By adopting the above technical solution, the sealing ring is provided to improve the sealing performance of the connection between the unit heat pipe and the planishing machine, so as to reduce the outflow of hot air from the connection between the unit heat pipe and the planishing machine and improve the utilization rate of hot air.

[0020] Optionally, heat insulation coatings are provided on the outer surfaces of the inlet heat pipe, the flow divider, the unit heat pipe, and the box body.

[0021] By adopting the above technical solution, the heat insulation coatings are provided to reduce the heat loss during the transportation of hot air and improve the utilization rate of hot air.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The waste heat of the annealing furnace is output to the transmission side of the leveler in the form of hot air through the hot air pipe, separator and unit heat pipe, which reduces the generation of ice inside the leveler, thereby reducing the damage to the surface of the strip and improving the quality of the strip;

[0024] 2. Filter impurities in hot air through the filtering mechanism to reduce the impurities entering the interior of the leveler, thereby reducing the damage of impurities to the internal structure of the leveler and the strip, thereby increasing the service life of the leveler and improving the quality of the strip;

[0025] 3. The dust scraping assembly can scrape off impurities on the surface of the filter plate, which is beneficial for the long-term use of the filter plate, thereby facilitating the long-term use of the antifreeze device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of this application.

[0027] Figure 2 It is a schematic diagram of the internal structure of the box of this application.

[0028] Figure 3 The present application has omitted the schematic diagram of the specific structure of the sealing ring.

[0029] Explanation of the reference numerals: 1. heat inlet pipe; 2. diverter; 3. unit heat pipe; 31. flange; 4. filter mechanism; 41. box body; 42. filter plate; 43. dust scraping assembly; 431. dust scraping plate; 432. hydraulic cylinder; 433. dust collecting box; 434. side convex plate; 435. transparent plate; 5. sealing ring; 100. leveling machine. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1-3 This application is described in further detail.

[0031] The present application embodiment discloses a winter continuous retreat unit leveling machine equipment antifreeze device. Figure 1 A winter antifreeze device for a leveler equipment of a continuous annealing unit comprises a heat inlet pipe 1, a diverter 2, a unit heat pipe 3 and a filter mechanism 4. The filter mechanism 4 is connected to the air inlet of the heat inlet pipe 1. The end of the heat inlet pipe 1 facing away from the filter mechanism 4 is fixedly connected to the air inlet of the diverter 2. The unit heat pipe 3 is fixedly connected to the air outlet of the diverter 2. The end of the unit heat pipe 3 facing away from the diverter 2 is connected to the outer side of the leveler 100 on the transmission side. Through the filter mechanism 4, the hot air pipe, the separator and the unit heat pipe 3, the waste heat of the annealing furnace is output to the transmission side inside the leveler 100 in the form of hot air, thereby reducing the generation of ice inside the leveler 100, thereby reducing the damage to the surface of the strip and improving the quality of the strip.

[0032] Reference Figure 1And Figure 2 , the filtering mechanism 4 includes a box body 41, a filter plate 42 and a dust scraping assembly 43. The box body 41 is fixedly connected to the air inlet of the heat inlet pipe 1, and a dust outlet is formed at the bottom of the box body 41. The filter plate 42 is used for filtering impurities in the hot air. The filter plate 42 is fixed in the box body 41, and a plurality of equally spaced air holes are formed in the filter plate 42. The dust scraping assembly 43 includes a dust scraping plate 431, a hydraulic cylinder 432 and a dust collecting box 433. The dust scraping plate 431 can scrape impurities on the filter plate 42. The dust scraping plate 431 is slidably connected in the box body 41, and the dust scraping plate 431 abuts against the filter plate 42. The hydraulic cylinder 432 is fixed on the top of the box body 41, and the telescopic end of the hydraulic cylinder 432 passes through the box body 41 and is fixed to the dust scraping plate 431. The dust collecting box 433 is fixed at the dust outlet of the box body 41.

[0033] Refer to Figure 1 and Figure 2 , during the transportation of hot air, the filter plate 42 can filter impurities in the hot air, reduce the entry of impurities into the inside of the temper mill 100, thereby reducing the damage to the internal structure of the temper mill 100 and the strip steel, improving the service life of the temper mill 100, and at the same time improving the quality of the strip steel. At the same time, when too many impurities on the filter plate 42 block the filter plate 42, the hydraulic cylinder 432 can drive the dust scraping plate 431 to move, and the dust scraping plate 431 can scrape impurities on the filter plate 42, which is beneficial to the long-term use of the filter plate 42, and thus facilitates the long-term use of the anti-freezing device.

[0034] Refer to Figure 1 and Figure 2 , convex side plates 434 are integrally formed on both sides of the dust collecting box 433. The convex side plates 434 are fixed to the bottom of the box body 41 by bolts. The arrangement of the convex side plates 434 and the bolts facilitates the disassembly of the dust collecting box 433. An installation opening is formed on the outer side surface of the dust collecting box 433, and a transparent plate 435 is fixed to the dust collecting box 433 at the installation opening. The transparent plate 435 is made of a transparent glass plate. The staff can observe the impurities inside the dust collecting box 433 through the transparent plate 435, so as to facilitate the timely cleaning of the impurities in the dust collecting box 433.

[0035] Refer to Figure 1 and Figure 3 , the temper mill 100 is provided with an installation groove at the unit heat pipe 3. A sealing ring 5 is installed in the installation groove. A flange 31 is fixed to one end of the unit heat pipe 3 away from the diverter 2. The flange 31 is fixed to the side surface of the temper mill 100 by bolts. After the flange 31 is installed, the flange 31 abuts against the end face of the sealing ring 5. The setting of the sealing ring 5 improves the sealing performance of the connection between the unit heat pipe 3 and the temper mill 100, thereby reducing the outflow of hot air from the connection between the unit heat pipe 3 and the temper mill 100 and improving the utilization rate of hot air.

[0036] Refer to Figure 1 andFigure 3 , heat insulation coatings are applied to the outer surfaces of the box body 41, the inlet heat pipe 1, the flow divider 2 and the unit heat pipe 3. The heat insulation coating adopts a composite silicate heat insulation coating. The heat insulation coating can reduce the heat loss during the transportation of hot air and improve the utilization rate of hot air.

[0037] The implementation principle of the anti-freezing device for the temper mill equipment of the continuous annealing unit in winter in the embodiment of the present application is as follows: In winter, the waste heat of the annealing furnace is output in the form of hot air. The hot air flows into the heat pipe after being filtered by the box body 41. The hot air flowing into the heat pipe flows into the unit heat pipe 3 through the flow divider 2. The hot air is transported to each part of the outer side of the drive side of the temper mill 100 through the unit heat pipe 3. Thus, the hot air enters the drive side of the temper mill 100, reducing the generation of ice cubes inside the temper mill 100, thereby reducing the damage to the surface of the strip steel and improving the quality of the strip steel. At the same time, the waste heat of the annealing furnace is utilized to improve the resource utilization rate.

[0038] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A winter tandem mill antifreeze device, characterized in that: The heat pipe (1) comprises a heat inlet pipe (1), a flow divider (2) and a unit heat pipe (3), wherein the heat inlet pipe (1) is connected to the air inlet of the flow divider (2), the unit heat pipe (3) is connected to the air outlet of the flow divider (2), and the end of the unit heat pipe (3) facing away from the flow divider (2) is connected to the outer side surface of the leveling machine (100) on the transmission side.

2. The antifreeze device for the leveling machine of the continuous annealing unit in winter according to claim 1 is characterized by: It also comprises a filtering mechanism (4), the filtering mechanism (4) comprising a box body (41) and a filtering plate (42), the box body (41) being connected to the air inlet of the heat inlet pipe (1), the filtering plate (42) being fixed in the box body (41), and a plurality of air holes being provided on the filtering plate (42).

3. The antifreeze device for the leveling machine of the continuous annealing unit in winter according to claim 2 is characterized by: The filtering mechanism (4) further comprises a dust scraping assembly (43), the dust scraping assembly (43) comprising a dust scraping plate (431), a hydraulic cylinder (432) and a dust collecting box (433), the dust scraping plate (431) being slidably connected in the box body (41), the dust scraping plate (431) being in contact with the filter plate (42), the hydraulic cylinder (432) being fixed on the top of the box body (41), and the telescopic end of the hydraulic cylinder (432) passing through the box body (41) being fixed to the dust scraping plate (431), the bottom of the box body (41) being provided with a dust outlet, and the dust collecting box (433) being fixed to the dust outlet of the box body (41).

4. The antifreeze device for the leveling machine of the continuous annealing unit in winter according to claim 3 is characterized by: Side convex plates (434) are fixed on both sides of the dust collecting box (433), and the side convex plates (434) are fixed to the box body (41) by bolts.

5. The antifreeze device for the leveling machine of the continuous annealing unit in winter according to claim 3 is characterized by: The side of the dust collecting box (433) is provided with an installation opening, and a transparent plate (435) is fixed to the installation opening of the dust collecting box (433).

6. The antifreeze device for the leveling machine of the continuous annealing unit in winter according to claim 1 is characterized by: A flange (31) is fixed to one end of the unit heat pipe (3) that is away from the diverter (2), and the flange (31) is fixed to the side of the leveling machine (100) by means of bolts.

7. The antifreeze device for the leveling machine of the continuous annealing unit in winter according to claim 6 is characterized by: The flattening machine (100) is provided with an installation groove at the unit heat pipe (3), a sealing ring (5) is installed in the installation groove, and after the flange (31) is installed, the flange (31) is pressed tightly against the end surface of the sealing ring (5).

8. The antifreeze device for the leveling machine of the continuous annealing unit in winter according to claim 2 is characterized by: The outer surfaces of the heat inlet pipe (1), the flow divider (2), the unit heat pipe (3) and the box body (41) are all provided with a heat insulation coating.

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