JPH059702U - Cleaning equipment for temper rolling mill for thin steel sheet - Google Patents

Abstract

(57) [Summary] [Purpose] Ensures cleaning and drying of rolling oil during wet temper rolling not only for rolls but also for roll peripheral equipment.
To prevent rolling oil, water droplets, etc. from dripping on the thin steel sheet during dry temper rolling, and to improve the quality of the thin steel sheet. [Configuration] When switching from wet temper rolling to dry temper rolling, cleaning water heated to a required temperature in the cleaning tank 27 is transferred from the roll cleaning nozzle 22 to the rolls 2 and 3 and the roll peripheral equipment cleaning nozzle. 23 to 26 is sprayed onto roll peripheral equipment such as the cobble guards 5 and 6, the guide 8 and the auxiliary rolls 9 to 14 to wash and remove the rolling oil, and thereafter, the blowout ports 37 of the drying ducts 35 and 36, Warm air is blown from 38 to the rolls 2 and 3 and peripheral equipments for drying.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a thin steel sheet adapted to be switched between wet temper rolling in which rolling oil or the like is applied to rolls and dry temper rolling in which rolling oil or the like is not applied to rolls, depending on the thin steel sheet to be tempered. The present invention relates to a cleaning device for a temper rolling mill.

[0002]

[Prior Art]

 As a cleaning device for a temper rolling mill for thin steel sheets of this type, there is a cleaning device described in, for example, Japanese Utility Model Publication No. 2-39601, which is used for cleaning water for a roll of a temper rolling mill. A cleaning nozzle that injects hot air and a drying nozzle that blows warm air to the rolls are respectively installed, and when switching from wet temper rolling to dry temper rolling, the rolling oil etc. applied to the roll is washed. After washing with the washing water sprayed from the use nozzle to the roll, warm air is blown from the drying nozzle to the roll to dry the roll.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned cleaning device for temper rolling mill for thin steel sheet, the cleaning water is sprayed from the cleaning nozzle only to the roll, and the hot air is blown from the drying nozzle only to the roll. Therefore, the kobbel guards, guides, auxiliary rolls, etc. arranged around the rolls will not be cleaned and dried at all, and if dry temper rolling is performed in this state, they will remain attached to the cobble guards, etc. Rolling oil during wet rolling, water droplets during washing, etc. drips on the thin steel sheet, causing local elongation of the thin steel sheet after temper rolling.

In view of the above situation, the present invention reliably cleans and dries rolling oil during wet temper rolling not only for rolls but also for the peripheral equipment of the rolls, so that rolling oil during dry temper rolling is ensured. It is an object of the present invention to provide a cleaning device for a temper rolling mill for a thin steel sheet, which can prevent dripping of water and water drops on the thin steel sheet and contribute to high quality of the thin steel sheet.

[0005]

[Means for Solving the Problems]

 The present invention is a roll cleaning nozzle that sprays cleaning water onto rolls of a temper rolling mill, and sprays cleaning water onto roll peripheral equipment such as cobble guards, guides, and auxiliary rolls arranged around the rolls. A nozzle for cleaning the roll peripheral equipment, a cleaning tank that can store and heat the cleaning water supplied to the nozzle for cleaning the roll and the nozzle for cleaning the peripheral equipment of the roll, and hot air for the roll and the peripheral equipment of the roll. And a drying duct having an outlet capable of adjusting a blowing direction for spraying.

[0006]

[Action]

 Therefore, when switching from wet temper rolling to dry temper rolling, the cleaning water heated to the required temperature in the cleaning tank is sprayed from the roll cleaning nozzle to the roll and from the roll peripheral equipment cleaning nozzle. It is sprayed to roll peripheral equipment such as cobble guard, guide, and auxiliary roll to wash and remove rolling oil, and then hot air is blown to the roll and roll peripheral equipment from the outlet of the drying duct. They are dried.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the present invention, in which 1 is a pair of upper and lower work rolls 2 disposed between left and right mill housings (not shown), and a pair of upper and lower work rolls 2 for backing up the work rolls 2. Is a temper rolling mill for thin steel plates 4 equipped with the restraining rolls 3, and the cobble guard 5, which guides the thin steel plates 4 upstream and downstream with respect to the traveling direction D of the thin steel plates 4 of each work roll 2. 6, a guide 8, and various auxiliary rolls 9, 10, 11, 12, 13, 14 are installed.

Reference numeral 15 is a rolling oil nozzle for injecting rolling oil toward the vicinity of the contact portion between the work roll 2 and the retaining roll 3, and 16 is temper rolling for receiving rolling oil injected from the rolling oil nozzle 15 and falling. A pan installed in the lower part of the machine 1, 17 is a tank for storing purified rolling oil having a purifying device inside, 18 is a pump, and rolling oil in the tank 17 is pumped by the pump 18 through pipelines 19 and 20. Is supplied to the rolling oil nozzle 15 and is jetted from the rolling oil nozzle 15. The jetted rolling oil falls and accumulates in the pan 16 and passes from the pan 16 through the pipe line 21 to the tank. It is possible to return to 17.

A fixed roll cleaning nozzle 22 is disposed in the temper rolling mill 1 to inject clean cleaning water to the upper retaining roll 3 to wash off rolling oil from the work roll 2 and the retaining roll 3. 23, 24, 25 and 26 are rotary type roll peripheral device cleaning for injecting cleaning water to roll peripheral devices such as the cobble guards 5, 6, the guide 8 and the auxiliary rolls 9 to 14 to wash off rolling oil from the roll peripheral devices. Nozzle for cleaning 27 is a cleaning tank for heating and storing cleaning water, and the cleaning water in the cleaning tank 27 is supplied to the roll peripheral equipment cleaning nozzles 23 to 26 by the pump 28 via the conduits 29 and 30. It is supplied and jetted from the roll peripheral equipment cleaning nozzles 23 to 26.

As shown in FIG. 2, the roll peripheral device cleaning nozzles 23 to 26 support a nozzle body 31 that rotates around the X axis, rotatably support the nozzle body 31, and are orthogonal to the X axis. A body 32 that rotates around the Y-axis, a main shaft 33 that rotatably supports the body 32, and a flange 34 that is attached to the main shaft 33 and that fixes the main shaft 33 to a nozzle header (not shown). Further, the nozzles 23 to 26 for cleaning the roll peripheral equipment are optimal positions corresponding to the sizes and structures of the roll peripheral equipment such as the cobble guides 5 and 6, the guide 8 and the auxiliary rolls 9 to 14 of the temper rolling mill 1. And the orientation so that the cleaning water can be sprayed on the specified cleaning area.

Reference numerals 35 and 36 are installed in the mill housings on the left and right sides of the temper rolling mill 1, and are fed from the blower 39 to the periphery of the rolls 2 and 3 and the roll machine through a dryer 40. A drying duct for blowing warm air, and the drying ducts 35, 36 are formed with blowout ports 37, 38 provided with guide vanes (not shown) or the like capable of appropriately adjusting the blowing direction of the warm air. Has been done.

Next, the operation of the above embodiment will be described.

At the time of wet temper rolling, the rolling oil in the tank 17 is sucked and pressurized by the pump 18, supplied to the rolling oil nozzle 15 through the pipelines 19 and 20, and is worked from the rolling oil nozzle 15. It is jetted toward the vicinity of the contact portion between the roll 2 and the backup roll 3.

The rolling oil injected from each rolling oil nozzle 15 accumulates in the pan 16 below the temper rolling mill 1, returns to the tank 17 through the pipeline 21, and is purified by the purifying device in the tank 17. After that, it is again supplied to the rolling oil nozzle 15 by the pump 18.

When switching from wet temper rolling to dry temper rolling, the line is stopped, the pump 18 is stopped to stop the injection of rolling oil, and the pump 28 is driven.

When the pump 28 is driven, the cleaning water heated to the required temperature in the cleaning tank 27 is sucked and pressurized by the pump 28, and passes through the pipes 29 and 30 so as to pass through the roll cleaning nozzle 22 and the roll periphery. It is supplied to the device cleaning nozzles 23 to 26. The cleaning water supplied to the roll cleaning nozzle 22 is jetted from the roll cleaning nozzle 22 to the upper retaining roll 3 under high pressure to flow down, and the rolling oil adhering to the work roll 2 and the retaining roll 3 is removed. Rinse with wash water. Further, the cleaning water supplied to the roll peripheral equipment cleaning nozzles 23 to 26 is jetted from each nozzle main body 31 rotating around the X axis and the Y axis and is cobble guards 5, 6, guides 8, and. The high-pressure jet is applied to a predetermined cleaning area such as the upper and lower surfaces of roll peripheral equipment such as the auxiliary rolls 9 to 14, and the adhering rolling oil is cleaned and removed by the cleaning water.

When the washing and removal of the rolling oil is completed, the pump 28 is stopped to stop the jet of washing water and drive the blower 39. The hot air that has been heated to a required temperature by passing through the dryer 40 by the drive of the blower 39 is discharged from the outlets 37 and 38 of the drying ducts 35 and 36 by the guide vanes or the like (not shown) to the work roll 2 and the backup roll 3. , And the roll peripherals such as the cobble guards 5, 6, the guides 8 and the auxiliary rolls 9 to 14 to dry them completely.

In this way, even if the wet temper rolling is switched to the dry temper rolling, the rolling oil of the rolls 2 and 3 and the peripheral equipment of the rolls can be surely washed and dried. Water drops and the like will not drop on the thin steel plate 4, local elongation of the thin steel plate 4 can be prevented, and high quality of the thin steel plate 4 can be achieved.

The cleaning apparatus of the temper rolling mill for thin steel plate of the present invention is not limited to the above-mentioned embodiment, and the nozzle for cleaning the roll peripheral equipment is not limited to the rotary type, but may be a fixed type nozzle. Needless to say, various changes can be made without departing from the scope of the present invention.

[0021]

[Effect of the device]

 As described above, according to the cleaning apparatus for a temper rolling mill for thin steel sheets of the present invention, not only the roll but also the peripheral equipment of the roll can surely clean and dry the rolling oil during the wet temper rolling. Therefore, it is possible to prevent rolling oil, water droplets, and the like from being dripped onto the thin steel sheet during the dry temper rolling, and to achieve high quality by eliminating local elongation of the thin steel sheet.

[Brief description of drawings]

FIG. 1 is an overall schematic system diagram of an embodiment of the present invention.

FIG. 2 is a side view showing an outer shape of a rotary type roll peripheral device cleaning nozzle used in an embodiment of the present invention.

[Explanation of symbols]

 1 Temper rolling mill 2 Work roll (roll) 3 Rest roll (roll) 4 Thin steel plate 5 Cobble guard (roll peripheral equipment) 6 Cobble guard (roll peripheral equipment) 8 Guide (roll peripheral equipment) 9 Auxiliary roll (roll peripheral equipment) 10 Auxiliary roll (Roll peripheral equipment) 11 Auxiliary roll (Roll peripheral equipment) 12 Auxiliary roll (Roll peripheral equipment) 13 Auxiliary roll (Roll peripheral equipment) 14 Auxiliary roll (Roll peripheral equipment) 22 Roll cleaning nozzle 23 Roll peripheral equipment cleaning Nozzle 24 Roll peripheral device cleaning nozzle 25 Roll peripheral device cleaning nozzle 26 Roll peripheral device cleaning nozzle 27 Cleaning tank 35 Drying duct 36 Drying duct 37 Air outlet 38 Air outlet

Continuation of the front page (72) Shinkichi Nagami, 1 Shinshinarahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishikawajima-Harima Heavy Industry Co., Ltd. Yokohama 2nd factory (72) Koji Kizaki Shinnaka, Isogo-ku, Yokohama-shi, Kanagawa Haramachi No. 1 Ishi Kawashima Harima Heavy Industry Co., Ltd., Yokohama No. 2 Factory (72) Inventor Masami Yone Mayor Shin Nakaharacho, Isogo Ward, Yokohama City, Kanagawa Prefecture No. 1 Ishi Kawashima Harima Heavy Industry Co., Ltd., Yokohama No. 2 Factory (72) Inventor Shiota Isamu Chiba City, Chiba City, 1st Kawasaki Steel Co., Ltd. Chiba Steel Works (72) Inventor Tadaaki Yakusaku, Chiba City, Chiba City 1st Kawasaki Town Chiba Steel Company, Chiba Steel Works (72) Inventor Yuji Shimoyama Chiba, Chiba City Kawasaki Town No. 1 Kawasaki Steel Co., Ltd. Chiba Works (72) Inventor Hiroyuki Ogawa No. 1 Kawasaki-cho, Chiba City, Chiba Prefecture Kawasaki Steel Co., Ltd. Chiba Works

Claims (1)

[Claims for utility model registration] 1. A roll cleaning nozzle for injecting cleaning water onto rolls of a temper rolling mill, and rolls such as cobble guards, guides and auxiliary rolls arranged around the rolls. A roll for spraying cleaning water to peripheral equipment, a nozzle for cleaning peripheral equipment, a cleaning tank for storing cleaning water supplied to the nozzle for cleaning roll and peripheral equipment cleaning nozzle, and the roll and roll A cleaning device for a tempered rolling mill for thin steel sheets, comprising: a drying duct having a blowout direction-adjustable blowout port for blowing warm air to peripheral equipment.