CA2700121C - Device for cleaning chilled rolls - Google Patents
Device for cleaning chilled rolls Download PDFInfo
- Publication number
- CA2700121C CA2700121C CA2700121A CA2700121A CA2700121C CA 2700121 C CA2700121 C CA 2700121C CA 2700121 A CA2700121 A CA 2700121A CA 2700121 A CA2700121 A CA 2700121A CA 2700121 C CA2700121 C CA 2700121C
- Authority
- CA
- Canada
- Prior art keywords
- barrel
- cleaning
- roll
- wires
- outer periphery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
- B22D11/0668—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating for dressing, coating or lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Cleaning In General (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Brushes (AREA)
Abstract
A device for cleaning chilled rolls is provided which can keep higher cleanliness of a brush.
A brush 13 comprises a rotatable cylindrical barrel 15 formed with a number of suction through-holes 14 extending from an outer periphery to inside, the barrel extending in parallel with an axis of the roll, grouped cleaning wires 16 implanted on the outer periphery of the barrel 15 and forming a helical bank extending from one end to the other end of the barrel 15 for cleaning of the roll and a dust suction port 18 at one end of the barrel 15 and in communication with an inner space of the barrel 15, the dust suction port 18 being connected to an exhaust mechanism.
A brush 13 comprises a rotatable cylindrical barrel 15 formed with a number of suction through-holes 14 extending from an outer periphery to inside, the barrel extending in parallel with an axis of the roll, grouped cleaning wires 16 implanted on the outer periphery of the barrel 15 and forming a helical bank extending from one end to the other end of the barrel 15 for cleaning of the roll and a dust suction port 18 at one end of the barrel 15 and in communication with an inner space of the barrel 15, the dust suction port 18 being connected to an exhaust mechanism.
Description
DESCRIPTION
DEVICE FOR CLEANING CHILLED ROLLS
Technical Field [0001]
The present invention relates to a device for cleaning chilled rolls used in a twin roll caster.
Background Art [0002]
Known as one of techniques for directly producing a strip from molten metal is twin-roll continuous casting where molten metal is supplied to between a pair of rotated rolls to deliver a solidified metal strip therefrom.
DEVICE FOR CLEANING CHILLED ROLLS
Technical Field [0001]
The present invention relates to a device for cleaning chilled rolls used in a twin roll caster.
Background Art [0002]
Known as one of techniques for directly producing a strip from molten metal is twin-roll continuous casting where molten metal is supplied to between a pair of rotated rolls to deliver a solidified metal strip therefrom.
[0003]
Figs. 1 and 2 show a twin roll caster with a conventional cleaning device for chilled rolls, the twin roll caster comprising a pair of chilled rolls 1 arranged horizontally side by side, and a pair of side weirs associated with the rolls 1.
Figs. 1 and 2 show a twin roll caster with a conventional cleaning device for chilled rolls, the twin roll caster comprising a pair of chilled rolls 1 arranged horizontally side by side, and a pair of side weirs associated with the rolls 1.
[0004]
The chilled rolls 1 are constructed such that cooling water passes through the rolls and a nip G between the rolls may be expanded/contracted depending on thickness of a strip 3 to be produced.
The chilled rolls 1 are constructed such that cooling water passes through the rolls and a nip G between the rolls may be expanded/contracted depending on thickness of a strip 3 to be produced.
[0005]
The rotated speed and direction of the chilled rolls 1 are set such that outer peripheries of the respective rolls move from above to the nip G between the rolls at the same speed.
The rotated speed and direction of the chilled rolls 1 are set such that outer peripheries of the respective rolls move from above to the nip G between the rolls at the same speed.
[0006]
One of the side weirs 2 surface-contact one ends of the respective chilled rolls 1 and the other side weir 2, the other ends of the rolls 1.
One of the side weirs 2 surface-contact one ends of the respective chilled rolls 1 and the other side weir 2, the other ends of the rolls 1.
[0007]
A molten-metal delivery nozzle 4 is arranged between the paired side weirs 2 and just above the nip G between the rolls. Molten metal is poured from a ladle (not shown) via the nozzle 4 into a space defined by the rolls 1 and the side weirs 2 to form a molten metal pool S.
A molten-metal delivery nozzle 4 is arranged between the paired side weirs 2 and just above the nip G between the rolls. Molten metal is poured from a ladle (not shown) via the nozzle 4 into a space defined by the rolls 1 and the side weirs 2 to form a molten metal pool S.
[0008]
Thus, with the molten metal pool 5 being formed, the rolls 1 are rotated while being cooled by circulation of cooling water therethrough, so that molten steel is solidified on the outer peripheries of the rolls 1, the solidified shells 6 on the respective outer peripheries of the chilled rolls 1 being brought together to be delivered downwardly from the nip G as the steel strip 3.
Thus, with the molten metal pool 5 being formed, the rolls 1 are rotated while being cooled by circulation of cooling water therethrough, so that molten steel is solidified on the outer peripheries of the rolls 1, the solidified shells 6 on the respective outer peripheries of the chilled rolls 1 being brought together to be delivered downwardly from the nip G as the steel strip 3.
[0009]
In this case, in order to make the steel strip 3 to have thickness of a target value, pushing forces are applied to bearing boxes (not shown) pivotally supporting necks of the respective rolls 1 so as to move the rolls toward each other.
In this case, in order to make the steel strip 3 to have thickness of a target value, pushing forces are applied to bearing boxes (not shown) pivotally supporting necks of the respective rolls 1 so as to move the rolls toward each other.
[0010]
As casting runs are repeated, oxides including for example manganese and silicon are attached to the outer peripheries of the rolls 1. The attached oxides increased in thickness hinder heat transfer from the molten steel to the rolls 1 and interfere the production of the solidified shells 6 on the outer peripheries of the rolls 1.
As casting runs are repeated, oxides including for example manganese and silicon are attached to the outer peripheries of the rolls 1. The attached oxides increased in thickness hinder heat transfer from the molten steel to the rolls 1 and interfere the production of the solidified shells 6 on the outer peripheries of the rolls 1.
[0011]
In order to overcome this, a cylindrical brush 7 is arranged for each of the rolls 1 such that the brush abuts on the outer periphery of the roll all over an axial length of the roll. The brush 7 is rotated by a motor (not shown) in the same direction as that of the roll 1 to clean the outer periphery of the roll 1, thus removing any attached oxidation layer (see, for example, Patent Literatures 1 and 2).
In order to overcome this, a cylindrical brush 7 is arranged for each of the rolls 1 such that the brush abuts on the outer periphery of the roll all over an axial length of the roll. The brush 7 is rotated by a motor (not shown) in the same direction as that of the roll 1 to clean the outer periphery of the roll 1, thus removing any attached oxidation layer (see, for example, Patent Literatures 1 and 2).
[0012]
Portions of the respective brushes 7 not facing to the rolls 1 are sheathed by cowlings 8, respectively.
Portions of the respective brushes 7 not facing to the rolls 1 are sheathed by cowlings 8, respectively.
[0013]
Each of the cowlings 8 is formed with a set of dust suction ports 9 spaced apart from each other axially of the roll 1 such that the respective sets of suction ports 9 are symmetrical, the dust suction ports 9 being connected to an exhaust blower 10 for prevention of dust from scattering during the cleaning.
[Patent Literature 1] JP8-309488A
[Patent Literature 2] JP2000-644A
Summary of Invention Technical Problems [0014]
The brush 7 comprises a barrel 11 and grouped cleaning wires 12 implanted generally over an outer periphery of the barrel 11. It is not easy to suck, out of the cowlings 8, the dust intruding between the densely implanted wires 12.
Each of the cowlings 8 is formed with a set of dust suction ports 9 spaced apart from each other axially of the roll 1 such that the respective sets of suction ports 9 are symmetrical, the dust suction ports 9 being connected to an exhaust blower 10 for prevention of dust from scattering during the cleaning.
[Patent Literature 1] JP8-309488A
[Patent Literature 2] JP2000-644A
Summary of Invention Technical Problems [0014]
The brush 7 comprises a barrel 11 and grouped cleaning wires 12 implanted generally over an outer periphery of the barrel 11. It is not easy to suck, out of the cowlings 8, the dust intruding between the densely implanted wires 12.
[0015]
When attention is paid to cleanness of the brush 7 cleaning the outer periphery of the chilled roll 1 all over the axial length thereof, it is found out that dust left is little on the wires and the barrel constituting the brush 7 at regions a adjacent to the dust suction ports 9; the further the positions are away from the dust suction ports 9, the more the dust is left.
When attention is paid to cleanness of the brush 7 cleaning the outer periphery of the chilled roll 1 all over the axial length thereof, it is found out that dust left is little on the wires and the barrel constituting the brush 7 at regions a adjacent to the dust suction ports 9; the further the positions are away from the dust suction ports 9, the more the dust is left.
[0016]
Such cleanness of the brush 7 is reflected in the chilled roll 1; dust, which is left much at the portions of the brush 7 away from the dust suction ports 9, partly emigrates to the outer periphery of the chilled roll 1 and hinders heat transfer from the molten steel to the roll 1.
Such cleanness of the brush 7 is reflected in the chilled roll 1; dust, which is left much at the portions of the brush 7 away from the dust suction ports 9, partly emigrates to the outer periphery of the chilled roll 1 and hinders heat transfer from the molten steel to the roll 1.
[0017]
In other words, on the outer periphery of each of the chilled rolls 1, the development of the solidified shell 6 is smooth at the portions of the brush 7 in the regions a adjacent to the dust suction ports 9 and is not smooth at the other portions due to hindrance of heat transfer by the dust.
In other words, on the outer periphery of each of the chilled rolls 1, the development of the solidified shell 6 is smooth at the portions of the brush 7 in the regions a adjacent to the dust suction ports 9 and is not smooth at the other portions due to hindrance of heat transfer by the dust.
[0018]
Thus, the steel strip 3 delivered from the paired chilled rolls 1 is made up of the solidified shells 6 applied to each other at their well-developed ridges shown in Fig. 2, there remaining unsolidified zones at valleys between the ridges axially of the chilled rolls 1.
Thus, the steel strip 3 delivered from the paired chilled rolls 1 is made up of the solidified shells 6 applied to each other at their well-developed ridges shown in Fig. 2, there remaining unsolidified zones at valleys between the ridges axially of the chilled rolls 1.
[0019]
Moreover, the steel strip 3 after its shrinkage due to the solidification may have irregular thickness distribution widthwise of the strip, resulting in cracks on the strip.
Moreover, the steel strip 3 after its shrinkage due to the solidification may have irregular thickness distribution widthwise of the strip, resulting in cracks on the strip.
[0020]
The invention was made in view of the above and has its object to provide a device for cleaning chilled rolls which can keep brushes to have high cleanness.
Solution to Problems [0021]
In order to attain the above object, a device for cleaning chilled rolls according to the invention comprises brushes each comprising a rotatable cylindrical barrel formed with a number of suction through-holes extending from an outer periphery to inside, said barrel extending in parallel with an axis of the roll, grouped cleaning wires implanted on the outer periphery of the barrel and having tips abutting on an outer periphery of the roll upon rotation of the barrel and a dust suction port at one of ends of said barrel and in communication with an inner space of the barrel, said dust suction port being connected to an exhaust mechanism.
The invention was made in view of the above and has its object to provide a device for cleaning chilled rolls which can keep brushes to have high cleanness.
Solution to Problems [0021]
In order to attain the above object, a device for cleaning chilled rolls according to the invention comprises brushes each comprising a rotatable cylindrical barrel formed with a number of suction through-holes extending from an outer periphery to inside, said barrel extending in parallel with an axis of the roll, grouped cleaning wires implanted on the outer periphery of the barrel and having tips abutting on an outer periphery of the roll upon rotation of the barrel and a dust suction port at one of ends of said barrel and in communication with an inner space of the barrel, said dust suction port being connected to an exhaust mechanism.
[0022]
Specifically, the grouped cleaning wires may be implanted on the outer periphery of the barrel such that the wires form a helical bank extending from an end to the other end of the barrel.
Specifically, the grouped cleaning wires may be implanted on the outer periphery of the barrel such that the wires form a helical bank extending from an end to the other end of the barrel.
[0023]
Alternatively, the grouped cleaning wires may be implanted on the outer periphery of the barrel such that wires form a plurality of helical banks extending from an end to the other end of the barrel.
Alternatively, the grouped cleaning wires may be implanted on the outer periphery of the barrel such that wires form a plurality of helical banks extending from an end to the other end of the barrel.
[0024]
The grouped cleaning wires are varied in length, diameter and/or material quality between the banks.
Portions of the brush not facing to the roll may be sheathed by a cowling.
Advantageous Effects of Invention [0025]
A device for cleaning chilled rolls according to the invention can exhibit the following excellent effects and advantages.
The grouped cleaning wires are varied in length, diameter and/or material quality between the banks.
Portions of the brush not facing to the roll may be sheathed by a cowling.
Advantageous Effects of Invention [0025]
A device for cleaning chilled rolls according to the invention can exhibit the following excellent effects and advantages.
[0026]
(1) The great number of suction through-holes are formed on the barrel with the outer periphery on which wires are implanted, so that dust generated upon cleaning can enter via the suction through-holes into an inner space within the barrel and is discharged via the dust suction port to outside. As a result, the brush can be kept to have high cleanness.
(1) The great number of suction through-holes are formed on the barrel with the outer periphery on which wires are implanted, so that dust generated upon cleaning can enter via the suction through-holes into an inner space within the barrel and is discharged via the dust suction port to outside. As a result, the brush can be kept to have high cleanness.
[0027]
(2) When the grouped cleaning wires are implanted on the outer periphery of the barrel such that the wires form one or a plurality of helical bank extending from an end to the other end of the barrel, the number of wires concurrently abutting on the outer periphery of the roll is reduced. As a result, with no need of urging the brush against the roll with great force, contact pressure of the grouped wires against the roll can be ensured and attached oxide layer can be reliably removed from the roll.
(2) When the grouped cleaning wires are implanted on the outer periphery of the barrel such that the wires form one or a plurality of helical bank extending from an end to the other end of the barrel, the number of wires concurrently abutting on the outer periphery of the roll is reduced. As a result, with no need of urging the brush against the roll with great force, contact pressure of the grouped wires against the roll can be ensured and attached oxide layer can be reliably removed from the roll.
[0028]
(3) Thus, the strip delivered from the chilled rolls has tendency of having not irregular thickness distribution widthwise of the strip but averaged one, cracks being prevented from occurring.
Brief Description of Drawings [0029]
Fig. 1 is a schematic view showing a twin roll caster with a conventional cleaning device for chilled rolls;
Fig. 2 is a schematic plan view with respect to Fig.
l;
Fig. 3 is a schematic view showing a twin roll caser with a device for cleaning chilled rolls of the invention;
Fig. 4 is a schematic vies showing the brush in Fig.
3;
Fig. 5 is a schematic view showing a variation of the brush; and Fig. 6 is a schematic view showing a further variation of the brush.
Reference Signs List [0030]
1 chilled roll exhaust blower 13 brush 14 suction hole barrel 16 grouped wires 18 dust suction port cowling 22 grouped wires 23 grouped wires Description of Embodiments [0031]
An embodiment of the invention will be described in conjunction with drawings.
Figs. 3 and 4 show a twin roll caser with a device for cleaning chilled rolls according to the invention in which parts similar to those of Figs. 1 and 2 are represented by the same reference numerals.
(3) Thus, the strip delivered from the chilled rolls has tendency of having not irregular thickness distribution widthwise of the strip but averaged one, cracks being prevented from occurring.
Brief Description of Drawings [0029]
Fig. 1 is a schematic view showing a twin roll caster with a conventional cleaning device for chilled rolls;
Fig. 2 is a schematic plan view with respect to Fig.
l;
Fig. 3 is a schematic view showing a twin roll caser with a device for cleaning chilled rolls of the invention;
Fig. 4 is a schematic vies showing the brush in Fig.
3;
Fig. 5 is a schematic view showing a variation of the brush; and Fig. 6 is a schematic view showing a further variation of the brush.
Reference Signs List [0030]
1 chilled roll exhaust blower 13 brush 14 suction hole barrel 16 grouped wires 18 dust suction port cowling 22 grouped wires 23 grouped wires Description of Embodiments [0031]
An embodiment of the invention will be described in conjunction with drawings.
Figs. 3 and 4 show a twin roll caser with a device for cleaning chilled rolls according to the invention in which parts similar to those of Figs. 1 and 2 are represented by the same reference numerals.
[0032]
Employed in the device for cleaning the chilled rolls is a technique such that a brush 13 arranged for each of chilled rolls 1 is rotated by a motor (not shown) in the same direction as that of the roll 1 to clean an outer periphery of the roll 1, thereby removing any attached oxide layer.
Employed in the device for cleaning the chilled rolls is a technique such that a brush 13 arranged for each of chilled rolls 1 is rotated by a motor (not shown) in the same direction as that of the roll 1 to clean an outer periphery of the roll 1, thereby removing any attached oxide layer.
[0033]
The brush 13 comprises a cylindrical barrel 15 formed with a number of suction through-holes 14 extending from an outer periphery of the barrel to inside, grouped cleaning wires 16 implanted on the outer periphery of the barrel 15 such that the wires 16 form a helical bank extending from an end of the barrel 15 to the other end thereof, a dust suction port 18 in the form of a hollow shaft coaxially associated with the barrel 15 through a ring plate 17 fitted into the end of the barrel 15 and a support shaft 19 coaxially fixed to the barrel 15 through a plate (not shown) fitted to the other end of the barrel 15, the brush being arranged in parallel with an axis of the chilled roll 1 in such a manner that tips of the grouped wires 16 are caused to sequentially abut on the outer periphery of the roll 1 through rotation of the barrel 15.
The brush 13 comprises a cylindrical barrel 15 formed with a number of suction through-holes 14 extending from an outer periphery of the barrel to inside, grouped cleaning wires 16 implanted on the outer periphery of the barrel 15 such that the wires 16 form a helical bank extending from an end of the barrel 15 to the other end thereof, a dust suction port 18 in the form of a hollow shaft coaxially associated with the barrel 15 through a ring plate 17 fitted into the end of the barrel 15 and a support shaft 19 coaxially fixed to the barrel 15 through a plate (not shown) fitted to the other end of the barrel 15, the brush being arranged in parallel with an axis of the chilled roll 1 in such a manner that tips of the grouped wires 16 are caused to sequentially abut on the outer periphery of the roll 1 through rotation of the barrel 15.
[0034]
The above-mentioned wordings "grouped cleaning wires 16 implanted ... such that the wires 16 form a helical bank"
encompass both a technique of implanting a bunch of a predetermined number of wires to each of implant holes formed on the barrel 15 and a technique of attaching to the barrel 15 a channel brush comprising the grouped wires tied down by a channel-shaped long holder so as to have any given thickness.
The above-mentioned wordings "grouped cleaning wires 16 implanted ... such that the wires 16 form a helical bank"
encompass both a technique of implanting a bunch of a predetermined number of wires to each of implant holes formed on the barrel 15 and a technique of attaching to the barrel 15 a channel brush comprising the grouped wires tied down by a channel-shaped long holder so as to have any given thickness.
[0035]
Portions of each of the brushes 13 not facing to the roll 1 are sheathed by a cowling 20.
Portions of each of the brushes 13 not facing to the roll 1 are sheathed by a cowling 20.
[0036]
In order to prevent dust from being scattered during the cleaning, a hollow shaft-like dust suction port 18 communicating with an inner space in the barrel 15 is connected to a compulsory exhaust mechanism in the form of exhaust blower 10 through a rotary joint (not shown) for rotation of the brush 13 as well as a piping 21.
In order to prevent dust from being scattered during the cleaning, a hollow shaft-like dust suction port 18 communicating with an inner space in the barrel 15 is connected to a compulsory exhaust mechanism in the form of exhaust blower 10 through a rotary joint (not shown) for rotation of the brush 13 as well as a piping 21.
[0037]
When a twin roll caster is to be operated, the brushes 13 are rotated by motors (not shown) in the same directions as those of the chilled rolls 1 to clean the outer peripheries of the chilled rolls 1 to thereby remove the attached oxide layers while the exhaust blower 10 is activated to catch the dust in the respective cowlings 20.
When a twin roll caster is to be operated, the brushes 13 are rotated by motors (not shown) in the same directions as those of the chilled rolls 1 to clean the outer peripheries of the chilled rolls 1 to thereby remove the attached oxide layers while the exhaust blower 10 is activated to catch the dust in the respective cowlings 20.
[0038]
Since the grouped wires 16 are implanted on the outer periphery of the barrel 15 such that the wires 16 form a helical bank extending from the one to the other end of the barrel 15, the grouped wires 16 only in a limited area concurrently abut on the outer periphery of the roll 1, so that a widthwise profile of the outer periphery of the roll 1 does not directly affect the brush 13. As a result, with no need of urging the brush 13 against the roll 1 with great force, contact pressure of the grouped wires 16 against the roll 1 can be ensured and any attached oxide layer can be reliably removed from the outer periphery of the roll 1. Moreover, since the urging force of the brush 13 may be small, a mechanism such as pushing cylinder for urging the brush 13 against the roll 1 may be of small size and drive energy required for rotation of the brush 13 may be reduced.
Since the grouped wires 16 are implanted on the outer periphery of the barrel 15 such that the wires 16 form a helical bank extending from the one to the other end of the barrel 15, the grouped wires 16 only in a limited area concurrently abut on the outer periphery of the roll 1, so that a widthwise profile of the outer periphery of the roll 1 does not directly affect the brush 13. As a result, with no need of urging the brush 13 against the roll 1 with great force, contact pressure of the grouped wires 16 against the roll 1 can be ensured and any attached oxide layer can be reliably removed from the outer periphery of the roll 1. Moreover, since the urging force of the brush 13 may be small, a mechanism such as pushing cylinder for urging the brush 13 against the roll 1 may be of small size and drive energy required for rotation of the brush 13 may be reduced.
[0039]
Furthermore, since the dust during the cleaning enters via the great number of suction holes 14 into the inner space of the barrel 15 and is instantly discharged out of the cowling 20 via the dust suction port 18 and since the implanted density of the grouped wires 16 is low, the dust has much difficulties for its entering into the grouped wires 16, thus the cleanness of the brush 13 can be kept high. In other words, even if the dust enters into the grouped wires 16 and/or adheres on the barrel 15, such dust can be quickly an reliably sucked and discharged through the suction holes 14 and from the barrel 15.
Since the brush 13 is sheathed by the cowling 20, the dust can be favorably prevented from being scattered around the brush 13. This also makes it easy to generate negative pressure around the brush 13 within the cowling 20 relative to the environment outside the cowling 20, so that dust recovery by actuation of the exhaust blower 10 can be efficiently conducted.
Furthermore, since the dust during the cleaning enters via the great number of suction holes 14 into the inner space of the barrel 15 and is instantly discharged out of the cowling 20 via the dust suction port 18 and since the implanted density of the grouped wires 16 is low, the dust has much difficulties for its entering into the grouped wires 16, thus the cleanness of the brush 13 can be kept high. In other words, even if the dust enters into the grouped wires 16 and/or adheres on the barrel 15, such dust can be quickly an reliably sucked and discharged through the suction holes 14 and from the barrel 15.
Since the brush 13 is sheathed by the cowling 20, the dust can be favorably prevented from being scattered around the brush 13. This also makes it easy to generate negative pressure around the brush 13 within the cowling 20 relative to the environment outside the cowling 20, so that dust recovery by actuation of the exhaust blower 10 can be efficiently conducted.
[0040]
Thus, facilitated is production of solidified shells 6 on the outer peripheries of the rolls 1 (see Fig. 2);
the steel strip 3 delivered from the rolls has tendency of having not irregular but equal widthwise thickness distribution, resulting in prevention of cracks on the strip.
Thus, facilitated is production of solidified shells 6 on the outer peripheries of the rolls 1 (see Fig. 2);
the steel strip 3 delivered from the rolls has tendency of having not irregular but equal widthwise thickness distribution, resulting in prevention of cracks on the strip.
[0041]
Fig. 5 shows a variation of the brush 13 where, in addition to the helical bank by the grouped cleaning wires 16, grouped cleaning wires 22 are implanted on the outer periphery of the barrel 15 to provide a further helical bank from the one to the other end of the barrel, whereby totally the two banks are provided.
Fig. 5 shows a variation of the brush 13 where, in addition to the helical bank by the grouped cleaning wires 16, grouped cleaning wires 22 are implanted on the outer periphery of the barrel 15 to provide a further helical bank from the one to the other end of the barrel, whereby totally the two banks are provided.
[0042]
The grouped wires 16 and 22 may be of the same kind for uniform cleaning effect; if the grouped wires 16 and 22 are varied in length (from the outer periphery of the barrel 15 to the tips of the wires), diameter and/or material quality between the banks, different cleaning effects can be obtained.
The grouped wires 16 and 22 may be of the same kind for uniform cleaning effect; if the grouped wires 16 and 22 are varied in length (from the outer periphery of the barrel 15 to the tips of the wires), diameter and/or material quality between the banks, different cleaning effects can be obtained.
[0043]
Fig. 6 shows a further variation of the brush 13 where grouped cleaning wires 23 are implanted to provide a plurality of equidistantly arranged banks on the outer periphery of the barrel 15 from the one to the other end of the barrel 15.
Fig. 6 shows a further variation of the brush 13 where grouped cleaning wires 23 are implanted to provide a plurality of equidistantly arranged banks on the outer periphery of the barrel 15 from the one to the other end of the barrel 15.
[0044]
The respective banks of the grouped wires 23 extend obliquely of the axis of the barrel 15 and implanted positions of each of the banks on the one and the other ends of the barrel 15 are offset circumferentially of the barrel 15, the grouped wires 23 only in a limited area concurrently abut on the outer periphery of the roll 1 (see Fig. 3), so that a widthwise profile of the outer periphery of the roll 1 does not directly affect the brush 13. As a result, with no need of urging the brush 13 against the roll 1 with great force, contact pressured of the grouped wires 23 against the roll 1 can be ensured and any attached oxide layer can be reliably removed from the outer periphery of the roll 1.
The respective banks of the grouped wires 23 extend obliquely of the axis of the barrel 15 and implanted positions of each of the banks on the one and the other ends of the barrel 15 are offset circumferentially of the barrel 15, the grouped wires 23 only in a limited area concurrently abut on the outer periphery of the roll 1 (see Fig. 3), so that a widthwise profile of the outer periphery of the roll 1 does not directly affect the brush 13. As a result, with no need of urging the brush 13 against the roll 1 with great force, contact pressured of the grouped wires 23 against the roll 1 can be ensured and any attached oxide layer can be reliably removed from the outer periphery of the roll 1.
[0045]
Moreover, since the dust during the cleaning enters via the great number of suction holes 14 into the inner space of the barrel 15 and is instantly discharged out of the cowling 20 (see Fig. 2) via the dust suction port 18 and since the implanted density of the grouped wires 23 is low, the dust has much difficulties for its entering into the grouped wires 23, thus the cleanness of the brush 13 can be kept high. In other words, even if the dust enters into the grouped wires 23 and/or adheres on the barrel 15, such dust can be quickly and reliably sucked and discharged through the suction holes 14 and from the barrel 15.
Moreover, since the dust during the cleaning enters via the great number of suction holes 14 into the inner space of the barrel 15 and is instantly discharged out of the cowling 20 (see Fig. 2) via the dust suction port 18 and since the implanted density of the grouped wires 23 is low, the dust has much difficulties for its entering into the grouped wires 23, thus the cleanness of the brush 13 can be kept high. In other words, even if the dust enters into the grouped wires 23 and/or adheres on the barrel 15, such dust can be quickly and reliably sucked and discharged through the suction holes 14 and from the barrel 15.
[0046]
In the above embodiment and variations, the suction holes through which dust is sucked are arranged only on the barrel 15; however, suction holes may be also provided on the cowlings 20. More specifically, it is conceivable that the dust on and near the brush 13 may be sucked through the suction holes on the barrel 15 and the suction holes on the cowling 20. Then, catching of the dust may be conducted further reliably. The grouped wires 16 and 22 may be right-handed helical or left-handed helical.
The rotational direction of the brush 13 itself has no limitation.
In the above embodiment and variations, the suction holes through which dust is sucked are arranged only on the barrel 15; however, suction holes may be also provided on the cowlings 20. More specifically, it is conceivable that the dust on and near the brush 13 may be sucked through the suction holes on the barrel 15 and the suction holes on the cowling 20. Then, catching of the dust may be conducted further reliably. The grouped wires 16 and 22 may be right-handed helical or left-handed helical.
The rotational direction of the brush 13 itself has no limitation.
[0047]
It is to be understood that a device for cleaning a chilled roll according to the invention is not limited to the above embodiment and that various changes and modifications may be made without leaving the spirit of the invention.
Industrial Applicability [0048]
A device for cleaning a chilled roll according to the invention may be applied to a twin roll caster which produces a strip from metal other than steel.
It is to be understood that a device for cleaning a chilled roll according to the invention is not limited to the above embodiment and that various changes and modifications may be made without leaving the spirit of the invention.
Industrial Applicability [0048]
A device for cleaning a chilled roll according to the invention may be applied to a twin roll caster which produces a strip from metal other than steel.
Claims (6)
1. A device for cleaning chilled rolls which comprises brushes each comprising a rotatable cylindrical barrel formed with a number of suction through-holes extending from an outer periphery to inside, said barrel extending in parallel with an axis of the roll, grouped cleaning wires implanted on the outer periphery of the barrel and having tips abutting on an outer periphery of the roll upon rotation of the barrel and a dust suction port at one end of said barrel and in communication with inner space of the barrel, said dust suction port being connected to an exhaust mechanism.
2. A device for cleaning chilled rolls as claimed in claim 1, wherein the grouped cleaning wires are implanted on the outer periphery of the barrel such that the wires form a helical bank extending from an end to the other end of the barrel.
3. A device for cleaning chilled rolls as claimed in claim 1, wherein the grouped cleaning wires are implanted on the outer periphery of the barrel such that the wires form a plurality of helical banks extending from an end to the other end of the barrel.
4. A device for cleaning chilled rolls as claimed in any one of claims 1-3, wherein the grouped cleaning wires are varied in length, diameter and/or material quality between the banks.
5. A device for cleaning chilled rolls as claimed in any one of claims 1-3, wherein portions of the brush not facing to the roll are sheathed by a cowling.
6. A device for cleaning chilled rolls as claimed in claim 4, wherein portions of the brush not facing to the roll is sheathed by a cowling.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007338867A JP5320733B2 (en) | 2007-12-28 | 2007-12-28 | Cooling roll cleaning device |
| JP2007-338867 | 2007-12-28 | ||
| PCT/JP2008/003587 WO2009084153A1 (en) | 2007-12-28 | 2008-12-04 | Cooling roll cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2700121A1 CA2700121A1 (en) | 2009-07-09 |
| CA2700121C true CA2700121C (en) | 2011-11-29 |
Family
ID=40823889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2700121A Expired - Fee Related CA2700121C (en) | 2007-12-28 | 2008-12-04 | Device for cleaning chilled rolls |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20100205765A1 (en) |
| EP (1) | EP2248616B1 (en) |
| JP (1) | JP5320733B2 (en) |
| KR (1) | KR20100082864A (en) |
| CN (1) | CN101909781A (en) |
| BR (1) | BRPI0821920A2 (en) |
| CA (1) | CA2700121C (en) |
| RU (1) | RU2440212C1 (en) |
| TW (1) | TWI357360B (en) |
| WO (1) | WO2009084153A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5104943B2 (en) | 2008-03-21 | 2012-12-19 | 株式会社Ｉｈｉ | Roll polishing equipment |
| JP5691777B2 (en) | 2011-04-14 | 2015-04-01 | 株式会社Ihi | Powder rolling apparatus and powder rolling method |
| JP2012251217A (en) * | 2011-06-03 | 2012-12-20 | Ihi Corp | Powder rolling mill |
| DE102011086686A1 (en) * | 2011-11-21 | 2013-05-23 | Bayerische Motoren Werke Aktiengesellschaft | Brush device for use as sword brush or sword brush arrangement, e.g. brush attachment for attachment to robot, has brush head, which is divided and formed on surface of brush elements to slide during operation on subject to-be brushed |
| CN102553846B (en) * | 2011-12-13 | 2014-04-23 | 万向电动汽车有限公司 | Automatic cleaning device for press rolls |
| KR101676127B1 (en) * | 2014-12-18 | 2016-11-15 | 주식회사 포스코 | Manufacturing apparatus for of amorphous fiber |
| WO2018119551A1 (en) * | 2016-12-26 | 2018-07-05 | 宝山钢铁股份有限公司 | Casting roller surface cleaning device and method |
| CN114769216B (en) * | 2022-04-18 | 2023-02-28 | 江苏瑞澜特新材料有限公司 | Production equipment for water-soluble PVA film |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3087599A (en) * | 1960-07-19 | 1963-04-30 | Osborn Mfg Co | Conveyor roll |
| US3706108A (en) * | 1970-12-28 | 1972-12-19 | Eastman Kodak Co | Apparatus for cleaning a residual image from a photosensitive member |
| US5322015A (en) * | 1988-02-08 | 1994-06-21 | Baldwin Technology Corporation | Rotating brush cleaner system |
| JPH0377748A (en) * | 1989-08-18 | 1991-04-03 | Nippon Steel Corp | Brushing device for strip continuous casting machine |
| NO305738B1 (en) * | 1990-06-14 | 1999-07-19 | Baldwin Technology Corp | Printing device comprising rotary dryer brush member |
| JPH0735641Y2 (en) * | 1990-06-18 | 1995-08-16 | 新日本製鐵株式会社 | Roll brush for belt type continuous casting machine |
| US5160187A (en) * | 1991-10-17 | 1992-11-03 | Drumm Arthur E | Strip brush for mounting on a rotary drum |
| JP3188134B2 (en) * | 1995-05-15 | 2001-07-16 | 三菱重工業株式会社 | Brush device for twin drum casting machine |
| JP2879031B1 (en) * | 1997-09-29 | 1999-04-05 | 総武スチレン株式会社 | Method for removing remaining thread pieces from styrofoam styrofoam plate and apparatus for removing remaining thread pieces and attached dust |
| AUPP414398A0 (en) | 1998-06-17 | 1998-07-09 | Bhp Steel (Jla) Pty Limited | Strip casting apparatus |
| KR100489242B1 (en) * | 2000-08-24 | 2005-05-17 | 주식회사 포스코 | Brushing device for cleaning the surface of casting roll |
| DE10333215A1 (en) * | 2003-07-22 | 2005-02-17 | Sms Demag Ag | Shaping roller cleaning brush for working rollers in metal, especially aluminum, hot strip mills comprises fitting shape of brush coating and shape of cleaning brush according to shape of roller |
| KR101031560B1 (en) * | 2007-05-21 | 2011-04-27 | 삼성전자주식회사 | A suction port assembly and a vavuum cleaner having the same |
-
2007
- 2007-12-28 JP JP2007338867A patent/JP5320733B2/en not_active Expired - Fee Related
-
2008
- 2008-12-04 CN CN2008801227388A patent/CN101909781A/en active Pending
- 2008-12-04 KR KR1020107013286A patent/KR20100082864A/en not_active Application Discontinuation
- 2008-12-04 RU RU2010131631/02A patent/RU2440212C1/en not_active IP Right Cessation
- 2008-12-04 BR BRPI0821920A patent/BRPI0821920A2/en not_active Application Discontinuation
- 2008-12-04 EP EP08867995A patent/EP2248616B1/en not_active Not-in-force
- 2008-12-04 US US12/680,796 patent/US20100205765A1/en not_active Abandoned
- 2008-12-04 CA CA2700121A patent/CA2700121C/en not_active Expired - Fee Related
- 2008-12-04 WO PCT/JP2008/003587 patent/WO2009084153A1/en active Application Filing
- 2008-12-22 TW TW097150073A patent/TWI357360B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0821920A2 (en) | 2015-09-22 |
| CN101909781A (en) | 2010-12-08 |
| TW200936263A (en) | 2009-09-01 |
| EP2248616A4 (en) | 2011-06-08 |
| JP2009154203A (en) | 2009-07-16 |
| JP5320733B2 (en) | 2013-10-23 |
| TWI357360B (en) | 2012-02-01 |
| EP2248616A1 (en) | 2010-11-10 |
| WO2009084153A1 (en) | 2009-07-09 |
| US20100205765A1 (en) | 2010-08-19 |
| RU2440212C1 (en) | 2012-01-20 |
| EP2248616B1 (en) | 2012-05-30 |
| CA2700121A1 (en) | 2009-07-09 |
| KR20100082864A (en) | 2010-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20171204 |