CN106552911A - Thin strap continuous casting mixes the cleaning plant and method for cleaning of mao roll surface - Google Patents
Thin strap continuous casting mixes the cleaning plant and method for cleaning of mao roll surface Download PDFInfo
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- CN106552911A CN106552911A CN201510642925.0A CN201510642925A CN106552911A CN 106552911 A CN106552911 A CN 106552911A CN 201510642925 A CN201510642925 A CN 201510642925A CN 106552911 A CN106552911 A CN 106552911A
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- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
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Abstract
The invention discloses a kind of thin strap continuous casting mixes the cleaning plant and method for cleaning of mao roll surface, for clearing up to crystallization roll, the cleaning plant includes first brush roll and the second brush roll of the radial symmetric distribution along the crystallization roll, first brush roll is 30%-40% with the bristle density in planting of second brush roll, first brush roll is mixed for the fine, soft fur of 0.08-0.12mm by the coarse wool and hair footpath that hair footpath is 0.15-0.20mm with the bristle of second brush roll, and the ratio of the coarse wool and the fine, soft fur is 6:4-8:2.Using this cleaning plant and method for cleaning of the present invention, it is easy to clear up crystallization roll and in order to be effective.
Description
Technical field
The present invention relates to strip continuous casting technology field, it particularly relates to a kind of thin strap continuous casting mixes the cleaning plant of mao roll surface
And method for cleaning.
Background technology
In recent years, the research activities both at home and abroad to developing steel band direct pouring technology (i.e. the nearly end form process technology of strip) is got over
Come more active, with fastest developing speed is twin-roll thin strip continuous casting technology among these.Twin-roll thin strip continuous casting technology is 1865 earliest
Henry Bessemer propose (the US Patent of this idea:49053).Thin strap continuous casting by continuously casting, rolling,
The even operation such as heat treatment combines together, the strip base slightly Jing of production is subsequently rolled and forms finished industrial product with regard to disposable, greatly
Simplify greatly the production process from molten steel to steel band, shorten the production cycle, make Steel Production Flow Chart it is more compact, more continuous,
It is more efficient, more environmentally friendly；Production cost is significantly reduced simultaneously, and the strip product produced is not inferior to traditional handicraft in quality.
Therefore, this technology is once broken, it will bring revolutionary impact to whole steel industry in the world.
Specifically, as shown in figure 1, Twin-roll Strip Continuous Casting is typically：Directly by hot molten steel from ladle 1
Through tundish 2 and submersed nozzle 3, by current distribution device 4 by molten steel uniform cloth stream to one by two opposite direction rotatings
In the molten bath that water-cooled crystallization roll 6 and side seal board 5 are formed, 1～5mm Cast Strips 7 are cooled into through water-cooled crystallization roll 6,
Cast Strip is rolled into the strip of 0.7-2.5mm in pinch roll 8 sends into online milling train 9, then by rollgang 10
And cooling controller 11, then the pinch roll 12 before batching, finally enters coiling machine 13 and coils into hot-rolled steel
Band.
To casting process, either traditional sheet billet continuous casting, or sheet billet or strip casting process, affect Cast Strip solidification shape
The frictional force when principal element of state is relative motion between the resistance of throwing, i.e. solidified shell and crystallization roll (crystallizer).
Thin band continuous casting technique is due to having lacked the vibration of traditional continuous casting crystallizer vibration platform and the lubrication of covering slag, therefore easily produces
Raw roll banding.When Cast Strip local roll banding occurs, it may appear that the defect such as crackle, Cast Strip tear, so as to affect strip surface matter
Amount；When roll banding is serious, i.e. the area of Cast Strip roll banding is larger, and Cast Strip adheres to roll surface and can encase crystallization roll, can cause knot
Brilliant roller stall, makes crystallization roll equipment damage.Crystallization roll is the nucleus equipment of thin strap continuous casting, and the life-span for improving crystallization roll is thin
Key with continuous casting reduces cost.The method commonly used in metallurgy is crystal roller surface coating, such as the element such as nickel plating, cobalt,
The wearability of crystallization roll is improved, but the method can not fundamentally solve the problems, such as surface quality of casting belt.
Due to melting molten steel casting roll roll surface cooling velocity quickly, while having many metallic particles, metal oxide
Or nonmetal oxide is separated out and is cohered on crystallization roll roll surface.If these Particle distributions are uneven to affect casting roll roller
Face local heat conduction intensity, and then crack can strip surface, cause the mass defect of strip surface.To ensure Cast Strip
Surface quality, carries out roll surface cleaning using brush roll more than the dual-roller thin-band conticaster of countries in the world, and the form of brush roll is various more
Sample, the method for acting on casting roll roll surface are also different, and purpose is all to stick together composition granule using what brush roll was cleared up in casting roll.
A kind of roll surface cleaning device mentioned in Chinese patent CN200420107544.x, uses metallic spatula to be adjacent to
Roll surface scraping roll surface residue, provides pressure using the spring at scraper rear portion.Abrasion of this method to casting roll roll surface is acute
It is strong, and limited by structure and can not clear up the small metal oxide of roll surface.
Also casting roller surface is placed in parallel in row's hairbrush just like the one kind introduced in United States Patent (USP) US5307861, casting roll turns
When dynamic, hairbrush can axially move, and the two forms the effect that relative motion reaches cleaning roll surface.
As described above, crystallization roll roll surface cleaning quality the technology stability that whole thin strap continuous casting is produced is played it is very important
Effect.In thin strap continuous casting casting cycle, if unclean, the crystallization roll that roll surface cleaning device is cleared up to crystallization roll roll surface
Roll surface can be assembled more and more " allochthonous sediment ", be deposited on crystallization roll roll surface, and deposit thickness reaches to a certain degree,
Crystallization roll thermal conductivity factor can be significantly reduced, the generation of broken belt accident when serious, is directly resulted in.If roll surface cleaning device is to knot
" too clean " of brilliant roller roll surface cleaning, illustrates that the roll surface cleaning device for arranging is larger to the pressure of crystallization roll, long-term work
Under the conditions of, larger abrasion can be caused to crystallization roll roll surface.
As can be seen here, reasonably using brush roll, rational roll surface cleaning technology parameter is set, is to improve strip surface matter
One key link of amount.
The content of the invention
The technical problem to be solved in the present invention is, for the deficiency existing for prior art, there is provided a kind of thin strap continuous casting mixes
The cleaning plant and method for cleaning of hair roll surface, which can strengthen the cleaning effect to crystallization roll and can avoid injury crystallization
Roller.
To solve above-mentioned technical problem, technical program of the present invention lies in：A kind of thin strap continuous casting mixes the cleaning dress of mao roll surface
Put, for clearing up to crystallization roll, including along the crystallization roll radial symmetric distribution the first brush roll with second mao
Brush roll, first brush roll are 30%-40%, first brush roll with the bristle density in planting of second brush roll
With the bristle of second brush roll by hair footpath for 0.15-0.20mm coarse wool and hair footpath it is thin for 0.08-0.12mm
Hair is mixed, and the ratio of the coarse wool and the fine, soft fur is 6:4-8:2.
Preferably, the ratio of the coarse wool and the fine, soft fur is 7：3.
Preferably, the bristle lengths of the bristle lengths of first brush roll and second brush roll are
40-50mm。
Preferably, pressure sensor is provided with first brush roll and second brush roll, it is described
First brush roll and second brush roll are connected with hydraulic cylinder, can by the Driven by Hydraulic Cylinder towards near or
Person is moved away from the direction of the crystallization roll.
Preferably, the material of the bristle of first brush roll and second brush roll is stainless steel.
Preferably, the stainless steel is 304 stainless steels or 316 stainless steels.
Preferably, the cleaning plant also include dust collecting system, for collect first brush roll and
Second brush roll dust produced when working.
In addition, a kind of thin strap continuous casting of the present invention mixes the method for cleaning of mao roll surface, and for clearing up to crystallization roll, should
Method is：Radial symmetric along crystallization roll arranges the first brush roll and the second brush roll, first brush roll with it is described
The bristle density in planting of the second brush roll is identical, and its bristle is mixed with fine, soft fur using coarse wool, when crystallization roll is rotated,
First brush roll and the second brush roll are cleared up to which respectively.
Preferably, first brush roll and second brush roll are adjusted respectively to the knot by hydraulic cylinder
The pressure of brilliant roller, and in order to ensure the abrasion of the effect and consideration of roll surface cleaning to roll surface, need to control the first brush roll
The pressure being pressed against on crystallization roll surface with the second brush roll keeps constant, can be passed by the pressure that roll surface cleaning device is carried
Sensor, adjusts hydraulic cylinder action, constant to guarantee the pressure P that brush roll is pressed against on crystallization roll surface.
Preferably, the direction of rotation of first brush roll and second brush roll with the crystallization roll
Direction of rotation is contrary.
The thin strap continuous casting for implementing the present invention mixes the cleaning plant and method for cleaning of mao roll surface, has the advantages that：
(1) present invention reaches good roll surface by upper and lower knockdown first brush roll and the arrangement mode of the second brush roll
Cleaning effect；(2) cleaning of crystallization roll texture bottom in the form of bristle is mixed, can be thoroughly realized, while bristle
Hardness is appropriate, effectively prevent the infringement to crystallizing roll surface；(3) by brush roll pressure sensor controlling hydraulic cylinder
Stroke, it is constant to the pressure of crystallization roll roll surface to guarantee brush roll, it is possible to achieve roll surface cleaning process when long, stable,
Be effectively improved strip surface quality, reduce the occurrence probability of crackle, improve production process stability serve it is most important
Effect；(4) dust collecting system is disposed with, the dust and particulate matter for clearing to roll surface is collected, can
To substantially improve operating environment；(5) present invention can avoid production from the bigger stainless steel bristle of fusing point more high rigidity
Middle bristle is dripped scaling loss by molten steel.
Description of the drawings
Detailed description non-limiting example made with reference to the following drawings by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Process flow diagrams of the Fig. 1 for sheet-band continuous casting and rolling machine unit；
Fig. 2 is the schematic diagram of the cleaning plant that the thin strap continuous casting of the present invention mixes mao roll surface；
During Fig. 3 is the present invention, the controlling curve schematic diagram of Position of Hydraulic Cylinder.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the common of this area
For technical staff, without departing from the inventive concept of the premise, some deformations and improvement can also be made.These all belong to
In protection scope of the present invention.
A kind of thin strap continuous casting of the present invention mixes the cleaning plant of mao roll surface, for clearing up to crystallization roll, to improve
The cleanliness factor of crystallization roll, it is ensured that its working environment.
With reference to shown in Fig. 2, the cleaning plant includes the first brush roll 14 and second that the radial symmetric along crystallization roll 6 is distributed
Brush roll 16, as shown in FIG., crystallization roll 6 is two, and by passing through between two crystallization rolls 6, each crystallizes for Cast Strip 7
The outside of roller 6 is respectively provided with the first brush roll 14 and the second brush roll 16.First brush roll 14 and the second brush roll 16
Bristle density in planting is 30%-40%, in the present invention, the definition of bristle density in planting：Refer to and planted on area every square centimeter
Whole bristles shared by area, the numerical value is relevant with the bristle radical and bristle diameter planted on area every square centimeter.
The bristle of the first brush roll 14 and the second brush roll 16 by hair footpath for 0.15-0.20mm coarse wool and hair footpath be
The fine, soft fur of 0.08-0.12mm is mixed, and the two uniformly can mix, and forms mixed hair.In the present invention, coarse wool (hair footpath
For 0.15-0.20mm) it is 6 with the ratio of fine, soft fur (hair footpath be 0.08-0.12mm):4-8:2.Preferably, coarse wool with
The ratio of fine, soft fur is 7：3.It is to ensure brush roll (containing the first brush roll 14 and second from the purpose of coarse wool doping fine, soft fur
Brush roll 16) integral hardness while, fine, soft fur can be embedded into the bottom of 6 superficial makings of crystallization roll and be cleared up, improve
The cleaning effect of roll surface.During work, the direction of rotation of the first brush roll 14 and the second brush roll 16 is to 6 roll surface of crystallization roll
The effect of cleaning has a significant impact, therefore the direction of rotation of the first brush roll 14 and the second brush roll 16 should select and crystallization roll
6 direction of rotation is contrary.
Preferably, in the present invention, the material of the bristle of the first brush roll 14 and the second brush roll 16 is stainless steel,
And capillary copper should not be selected, the fusing point of copper is relatively low, only 1080 DEG C, if selecting capillary copper, is attached in producing sometimes
The molten steel drop temperature of crystallization roll surface is higher, can destroy capillary copper, affect roll surface cleaning.The stainless steel can be selected as various,
For example, the stainless steel can be selected as 304 stainless steels or 316 stainless steels.
In addition, the cleaning plant of the present invention also includes dust collecting system 15, the dust collecting system 15 is located at first mao
The top of brush roll 14 and the second brush roll 16, during for collecting the first brush roll 14 and the work of the second brush roll 16
Produced dust or particulate matter, improve the environment of crystallization roll operation.
In the present invention, the bristle lengths of the bristle lengths of the first brush roll 14 and the second brush roll 16 can select be
40-50mm.Preferably, pressure sensor is provided with the first brush roll 14 and the second brush roll 16,
The pressure sensor is used to sensing the first brush roll 14 and the second brush roll 16 and is applied to the pressure on crystallization roll 6, and first
Brush roll 14 and the second brush roll 16 are connected with hydraulic cylinder respectively, can by Driven by Hydraulic Cylinder towards near or it is remote
Move from the direction of crystallization roll 6.
With persistently carrying out for casting, the bristle of brush roll can gradually be worn and shorten, while crystallization roll 6 also can be gradually
Expanded by heating, the actual distance between 6 roll surface of brush roll and crystallization roll are being continually changing.Due to the first brush roll 14
The brush roll for all having selected density in planting larger with the second brush roll 16 is combined, if brush roll is not controlled to crystallization roll roll surface
If pressure, after long time running, crystallization roll roll surface occurs obvious wear trace, largely effects on crystallization roll 6
Service life, therefore in order to ensure the abrasion of the effect and consideration of roll surface cleaning to roll surface, need to control brush roll pressing
Pressure on crystallization roll surface keeps constant.The pressure sensor that can be carried by roll surface cleaning device, adjusts hydraulic pressure
Cylinder action, it is constant to guarantee the pressure P that brush roll is pressed against on crystallization roll surface.
With reference to shown in Fig. 3, cast the initial stage, the thermal expansion of crystallization roll 6 accounts for leading role so that brush roll and crystallization roll roller
Actual range between face reduces, therefore to be ensured that the pressure P that brush roll is pressed against on crystallization roll surface is constant, roll surface cleaning dress
Put and hydraulic cylinder should be followed to retreat；With the carrying out of casting, the thermal expansion of crystallization roll 6 reaches thermal balance, at this moment bristle lengths
Gradually shorten and can play a leading role so that the actual range increase between brush roll and crystallization roll roll surface, therefore brush will be ensured
The pressure that roll-in is leaned against on crystallization roll surface is constant, and roll surface cleaning device should follow hydraulic cylinder gradually to advance, Position of Hydraulic Cylinder S
Controlling curve schematic diagram it is as shown in Figure 3.Bristle lengths l be less than 30mm ± 2mm when, crystallization roll roll surface can be caused compared with
Big wear damage, should timely offline replacing brush roll.
A kind of thin strap continuous casting of the present invention mixes the method for cleaning of mao roll surface, for clearing up to crystallization roll 6, the method
For：Radial symmetric along crystallization roll 6 arranges the first brush roll 14 and the second brush roll 16.First brush roll 14 and
The bristle density in planting of two brush rolls 16 is identical, and its bristle is mixed with fine, soft fur using coarse wool, 6 turns of crystallization roll
When dynamic, the first brush roll 14 and the second brush roll 16 are cleared up to which respectively.In this process, preferably by liquid
Cylinder pressure adjusts the pressure of the first brush roll 14 and the second brush roll 16 to crystallization roll 6 respectively, to ensure cleaning effect
The roll surface of crystallization roll 6 is not injured simultaneously.Also, the direction of rotation of the first brush roll 14 and the second brush roll 16 with
The direction of rotation of crystallization roll 6 is contrary.
Embodiment 1
The density in planting of the first brush roll 14 and the second brush roll 16 is 30%.
Bristle hybrid mode is uniformly mixed using the bristle in two kinds of hair footpaths of hair footpath 0.15mm doping hair footpath 0.10mm, is formed
Mixed hair, is fabricated to the brush roll of mixed wool type.The ratio of mixed hair is：Coarse wool (hair footpath 0.15mm):Fine, soft fur (hair footpath 0.10mm)
=7:3.
Bristle original length 45mm, with persistently carrying out for casting, the bristle of brush roll can gradually be worn and shorten, together
When crystallization roll 6 also can gradually expanded by heating, the actual distance between brush roll and crystallization roll roll surface is being continually changing.
In order to ensure the abrasion of the effect and consideration of roll surface cleaning to roll surface, control brush roll is needed to be pressed against on crystallization roll surface
Pressure keeps constant.The pressure sensor that can be carried by roll surface cleaning device, adjusts hydraulic cylinder action, to guarantee
The pressure P that brush roll is pressed against on crystallization roll surface is constant.Casting initial stage, the thermal expansion of crystallization roll 6 account for leading role, make
The actual range obtained between brush roll and crystallization roll roll surface reduces, therefore the pressure that brush roll is pressed against on crystallization roll surface is ensured
P is constant, and roll surface cleaning device should follow hydraulic cylinder to retreat；With the carrying out of casting, the thermal expansion of crystallization roll 6 reaches heat
Balance, at this moment bristle lengths gradually shorten and can play a leading role so that the actual range between brush roll and crystallization roll roll surface
Increase, therefore to be ensured that the pressure that brush roll is pressed against on crystallization roll surface is constant, roll surface cleaning device should follow hydraulic cylinder gradually
Advance, the controlling curve schematic diagram of Position of Hydraulic Cylinder S is as shown in Figure 3.When bristle lengths l are less than 30mm ± 2mm, meeting
Larger wear damage is caused to crystallization roll roll surface, should timely offline replacing brush roll.
During work, the direction of rotation of brush roll is had a significant impact to the effect that crystallization roll roll surface is cleared up, the direction of rotation of brush roll
The direction contrary with 6 direction of rotation of crystallization roll should be selected.The bristle of 304 stainless steel of material selection of brush roll bristle.
In the top of roll surface cleaning device, dust collecting system 15 is disposed with, as shown in Fig. 2 being used in production to roll surface
The dust and particulate matter for clearing is collected, and can substantially improve operating environment.
After the selection of the type selecting and technological parameter of said brush roller, effect overall merit is carried out, roll surface cleaning effect is commented
Valency result shows：This kind of technique and method have reached the index request of roll surface cleaning；Abrasion of the brush roll to crystallization roll roll surface
Evaluation result shows：After long time running test (>30min), abrasion of the brush roll to crystallization roll roll surface does not have shadow
Ring.
Comparative example 1
The density in planting of the first brush roll 14 and the second brush roll 16 is 30%.
Coarse wool of the bristle using hair footpath 0.15mm.Bristle original length 45mm, with persistently carrying out for casting, brush roll
Bristle can gradually be worn and shorten, while crystallization roll 6 also can gradually expanded by heating, brush roll and crystallization roll roll surface it
Between actual distance be continually changing.In order to ensure the abrasion of the effect and consideration of roll surface cleaning to roll surface, need
The pressure that control brush roll is pressed against on crystallization roll surface keeps constant.The pressure sensing that can be carried by roll surface cleaning device
Device, adjusts hydraulic cylinder action, constant to guarantee the pressure P that brush roll is pressed against on crystallization roll surface.Casting initial stage, knot
The thermal expansion of brilliant roller 6 accounts for leading role so that the actual range between brush roll and crystallization roll roll surface reduces, therefore will protect
The pressure P that card brush roll is pressed against on crystallization roll surface is constant, and roll surface cleaning device should follow hydraulic cylinder to retreat；With casting
Carry out, the thermal expansion of crystallization roll 6 reaches thermal balance, at this moment bristle lengths gradually shorten and can play a leading role so that hairbrush
Actual range between roller and crystallization roll roll surface subtracts greatly, therefore to be ensured that the pressure that brush roll is pressed against on crystallization roll surface is constant,
Roll surface cleaning device should follow hydraulic cylinder gradually to advance, and the controlling curve schematic diagram of Position of Hydraulic Cylinder S is as shown in Figure 3.Brush
When staple length l is less than 30mm ± 2mm, larger wear damage can be caused to crystallization roll roll surface, offline in time more should be moulted
Brush roll.
During work, the direction of rotation of brush roll is had a significant impact to the effect that crystallization roll roll surface is cleared up, the direction of rotation of brush roll
The direction contrary with 6 direction of rotation of crystallization roll should be selected.The bristle of 304 stainless steel of material selection of brush roll bristle.
In the top of roll surface cleaning device, dust collecting system 15 is disposed with, as shown in Fig. 2 being used in production to roll surface
The dust and particulate matter for clearing is collected, and can substantially improve operating environment.
After the selection of the type selecting and technological parameter of said brush roller, effect overall merit is carried out, roll surface cleaning effect is commented
Valency result shows：This kind of technique and method have reached the index request of roll surface cleaning；Mill of the brush roll to 6 roll surface of crystallization roll
Damage evaluation result to show：After long time running test (>30min), brush roll has heavy wear to crystallization roll roll surface
Vestige, this is that production is not permitted.
Comparative example 2
The density in planting of the first brush roll 14 and the second brush roll 16 is 10%.
Bristle hybrid mode is uniformly mixed using the bristle in two kinds of hair footpaths of hair footpath 0.16mm doping hair footpath 0.10mm, is formed
Mixed hair, is fabricated to the brush roll of mixed wool type.The ratio of mixed hair is：Coarse wool (hair footpath 0.15mm):Fine, soft fur (hair footpath 0.10mm)
=5:5.
Bristle original length 48mm, with persistently carrying out for casting, the bristle of brush roll can gradually be worn and shorten, together
When crystallization roll 6 also can gradually expanded by heating, the actual distance between 6 roll surface of brush roll and crystallization roll is being continually changing.
In order to ensure the abrasion of the effect and consideration of roll surface cleaning to roll surface, control brush roll is needed to be pressed against on crystallization roll surface
Pressure keeps constant.The pressure sensor that can be carried by roll surface cleaning device, adjusts hydraulic cylinder action, to guarantee
The pressure P that brush roll is pressed against on crystallization roll surface is constant.Casting initial stage, the thermal expansion of crystallization roll 6 account for leading role, make
The actual range obtained between brush roll and crystallization roll roll surface reduces, therefore the pressure that brush roll is pressed against on crystallization roll surface is ensured
P is constant, and roll surface cleaning device should follow hydraulic cylinder to retreat；With the carrying out of casting, the thermal expansion of crystallization roll 6 reaches heat
Balance, at this moment bristle lengths gradually shorten and can play a leading role so that the actual range between brush roll and crystallization roll roll surface
Increase, therefore to be ensured that the pressure that brush roll is pressed against on crystallization roll surface is constant, roll surface cleaning device should follow hydraulic cylinder gradually
Advance, the controlling curve schematic diagram of Position of Hydraulic Cylinder S is as shown in Figure 3.When bristle lengths l are less than 30mm ± 2mm, meeting
Larger wear damage is caused to 6 roll surface of crystallization roll, should timely offline replacing brush roll.
During work, the direction of rotation of brush roll is had a significant impact to the effect that crystallization roll roll surface is cleared up, the direction of rotation of brush roll
The direction contrary with 6 direction of rotation of crystallization roll should be selected.The bristle of 304 stainless steel of material selection of brush roll bristle.
In the top of roll surface cleaning device, dust collecting system 15 is disposed with, as shown in Fig. 2 being used in production to roll surface
The dust and particulate matter for clearing is collected, and can substantially improve operating environment.
After the selection of the type selecting and technological parameter of said brush roller, effect overall merit is carried out, roll surface cleaning effect is commented
Valency result shows：This kind of technique and method are unable to reach the index request of roll surface cleaning；Mill of the brush roll to crystallization roll roll surface
Damage evaluation result to show：After long time running test (>30min), abrasion of the brush roll to 6 roll surface of crystallization roll does not have
Have an impact.
Comparative example 3
The density in planting of the first brush roll 14 and the second brush roll 16 is 30%.
Fine, soft fur of the bristle using hair footpath 0.10mm.Bristle original length 48mm, with persistently carrying out for casting, brush roll
Bristle can gradually be worn and shorten, while crystallization roll 6 also can gradually expanded by heating, brush roll and crystallization roll roll surface it
Between actual distance be continually changing.In order to ensure the abrasion of the effect and consideration of roll surface cleaning to roll surface, need
The pressure that control brush roll is pressed against on crystallization roll surface keeps constant.The pressure sensing that can be carried by roll surface cleaning device
Device, adjusts hydraulic cylinder action, constant to guarantee the pressure P that brush roll is pressed against on crystallization roll surface.Casting initial stage, knot
The thermal expansion of brilliant roller 6 accounts for leading role so that the actual range between 6 roll surface of brush roll and crystallization roll reduces, therefore will
Ensure that the pressure P that brush roll is pressed against on crystallization roll surface is constant, roll surface cleaning device should follow hydraulic cylinder to retreat；With casting
Carrying out, the thermal expansion of crystallization roll 6 reaches thermal balance, and at this moment bristle lengths gradually shorten and can play a leading role so that hair
Actual range between brush roll and crystallization roll roll surface subtracts greatly, therefore to be ensured that the pressure that brush roll is pressed against on crystallization roll surface is permanent
Fixed, roll surface cleaning device should follow hydraulic cylinder gradually to advance, and the controlling curve schematic diagram of Position of Hydraulic Cylinder S is as shown in Figure 3.
When bristle lengths l are less than 30mm ± 2mm, larger wear damage can be caused to crystallization roll roll surface, should offline replacing in time
Brush roll.
During work, the direction of rotation of brush roll is had a significant impact to the effect that crystallization roll roll surface is cleared up, the direction of rotation of brush roll
The direction contrary with crystallization roll direction of rotation should be selected.The bristle of 316 stainless steel of material selection of brush roll bristle.
In the top of roll surface cleaning device, dust collecting system 15 is disposed with, as shown in Fig. 2 being used in production to roll surface
The dust and particulate matter for clearing is collected, and can substantially improve operating environment.
After the selection of the type selecting and technological parameter of said brush roller, effect overall merit is carried out, roll surface cleaning effect is commented
Valency result shows：This kind of technique and method are unable to reach the index request of roll surface cleaning；Brush roll is to 6 roll surface of crystallization roll
Wear evaluation result shows：After long time running test (>30min), abrasion of the brush roll to 6 roll surface of crystallization roll
Without affecting, while finding there is hair down and local wear phenomenon using the outward flange bristle of the brush roll of fine, soft fur.
In sum, only presently preferred embodiments of the present invention, it is not for limiting the scope of present invention enforcement, all
According to the impartial change carried out by the shape described in scope of the invention as claimed, construction, feature and spirit and modification, all should wrap
Include in scope of the presently claimed invention.
Claims (10)
1. a kind of thin strap continuous casting mixes the cleaning plant of mao roll surface, for clearing up to crystallization roll, it is characterised in that bag
Include the first brush roll and the second brush roll that the radial symmetric along the crystallization roll is distributed, first brush roll and described the
The bristle density in planting of two brush rolls is 30%-40%, and the bristle of first brush roll and second brush roll is by hair
Footpath is that the coarse wool of 0.15-0.20mm and hair footpath are mixed for the fine, soft fur of 0.08-0.12mm, and the coarse wool is thin with described
The ratio of hair is 6:4-8:2.
2. thin strap continuous casting according to claim 1 mixes the cleaning plant of mao roll surface, it is characterised in that the coarse wool
Ratio with the fine, soft fur is 7：3.
3. thin strap continuous casting according to claim 1 mixes the cleaning plant of mao roll surface, it is characterised in that described first
The bristle lengths of the bristle lengths of brush roll and second brush roll are 40-50mm.
4. thin strap continuous casting according to claim 1 mixes the cleaning plant of mao roll surface, it is characterised in that described first
Pressure sensor, first brush roll and second hairbrush are provided with brush roll and second brush roll
Roller is connected with hydraulic cylinder, is moved towards close or away from the crystallization roll direction by the Driven by Hydraulic Cylinder.
5. thin strap continuous casting according to claim 1 mixes the cleaning plant of mao roll surface, it is characterised in that described first
The material of the bristle of brush roll and second brush roll is stainless steel.
6. thin strap continuous casting according to claim 5 mixes the cleaning plant of mao roll surface, it is characterised in that described stainless
Steel is 304 stainless steels or 316 stainless steels.
7. thin strap continuous casting according to claim 1 mixes the cleaning plant of mao roll surface, it is characterised in that the cleaning
Device also includes dust collecting system, produced when working for collecting first brush roll and second brush roll
Dust.
8. a kind of thin strap continuous casting mixes the method for cleaning of mao roll surface, for clearing up to crystallization roll, it is characterised in that edge
The radial symmetric for crystallization roll arranges the first brush roll and the second brush roll, first brush roll and second brush roll
Bristle density in planting it is identical, and its bristle mixed with fine, soft fur using coarse wool, when crystallization roll is rotated, the first hairbrush
Roller and the second brush roll are cleared up to which respectively.
9. thin strap continuous casting according to claim 8 mixes the method for cleaning of mao roll surface, it is characterised in that by hydraulic pressure
Cylinder adjusts the pressure of first brush roll and second brush roll to the crystallization roll respectively, by pressure sensing
Device, adjusts hydraulic cylinder action, constant to guarantee the pressure that brush roll is pressed against on crystallization roll surface.
10. thin strap continuous casting according to claim 9 mixes the method for cleaning of mao roll surface, it is characterised in that described
The direction of rotation of one brush roll and second brush roll is contrary with the direction of rotation of the crystallization roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510642925.0A CN106552911B (en) | 2015-09-30 | 2015-09-30 | Thin strap continuous casting mixes the cleaning plant and method for cleaning of mao roll surface |
Applications Claiming Priority (1)
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6083745A (en) * | 1983-10-12 | 1985-05-13 | Mitsubishi Heavy Ind Ltd | Production of thin sheet by continuous casting method |
| CN1128000A (en) * | 1994-04-04 | 1996-07-31 | 新日本制铁株式会社 | Twin-roll type continuous casting method and device |
| CN2734373Y (en) * | 2004-10-29 | 2005-10-19 | 宝山钢铁股份有限公司 | Slip sheet continuous casting roll surface cleaning device |
| CN2863310Y (en) * | 2005-12-30 | 2007-01-31 | 张子益 | Slip sheet continuous casting roll surface cleaning device |
| CN201136046Y (en) * | 2007-12-21 | 2008-10-22 | 宝山钢铁股份有限公司 | Cleaning plant for double-roller thin band continuous casting roller surface |
| CN201436107U (en) * | 2009-03-26 | 2010-04-07 | 宝山钢铁股份有限公司 | Double-roller thin-belt continuous casting roller surface cleaning device |
| CN101927324A (en) * | 2009-06-25 | 2010-12-29 | 宝山钢铁股份有限公司 | Method and device for improving surface quality of casting belt |
| CN102271837A (en) * | 2008-11-20 | 2011-12-07 | 卡斯特里普公司 | Device for cleaning chilled roll in a twin roll caster |
| CN103008587A (en) * | 2011-09-28 | 2013-04-03 | 宝山钢铁股份有限公司 | Generation method of anti-oxidation iron sheet by thin strip casting |
-
2015
- 2015-09-30 CN CN201510642925.0A patent/CN106552911B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6083745A (en) * | 1983-10-12 | 1985-05-13 | Mitsubishi Heavy Ind Ltd | Production of thin sheet by continuous casting method |
| CN1128000A (en) * | 1994-04-04 | 1996-07-31 | 新日本制铁株式会社 | Twin-roll type continuous casting method and device |
| CN2734373Y (en) * | 2004-10-29 | 2005-10-19 | 宝山钢铁股份有限公司 | Slip sheet continuous casting roll surface cleaning device |
| CN2863310Y (en) * | 2005-12-30 | 2007-01-31 | 张子益 | Slip sheet continuous casting roll surface cleaning device |
| CN201136046Y (en) * | 2007-12-21 | 2008-10-22 | 宝山钢铁股份有限公司 | Cleaning plant for double-roller thin band continuous casting roller surface |
| CN102271837A (en) * | 2008-11-20 | 2011-12-07 | 卡斯特里普公司 | Device for cleaning chilled roll in a twin roll caster |
| CN201436107U (en) * | 2009-03-26 | 2010-04-07 | 宝山钢铁股份有限公司 | Double-roller thin-belt continuous casting roller surface cleaning device |
| CN101927324A (en) * | 2009-06-25 | 2010-12-29 | 宝山钢铁股份有限公司 | Method and device for improving surface quality of casting belt |
| CN103008587A (en) * | 2011-09-28 | 2013-04-03 | 宝山钢铁股份有限公司 | Generation method of anti-oxidation iron sheet by thin strip casting |
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