CN104646440A - Device and method for removing emulsion on surfaces of cold-rolled steel strips - Google Patents
Device and method for removing emulsion on surfaces of cold-rolled steel strips Download PDFInfo
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- CN104646440A CN104646440A CN201510044874.1A CN201510044874A CN104646440A CN 104646440 A CN104646440 A CN 104646440A CN 201510044874 A CN201510044874 A CN 201510044874A CN 104646440 A CN104646440 A CN 104646440A
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Abstract
The invention discloses a device and a method for removing emulsion on surfaces of cold-rolled steel strips. The device comprises an upper working roller, an upper support roller seam purging mechanism, a steel strip upper surface emulsion sealing mechanism, an upper working roller surface emulsion removing mechanism, a steel strip lower surface emulsion removing mechanism, a steel strip upper surface purging mechanism and an upper support roller surface emulsion removing mechanism. The method is mainly characterized by reasonably controlling the sequence of opening and closing an emulsion injecting system and an emulsion removing device; a plurality of removing methods synergistically cooperate to form a whole body; the effect of removing the emulsion on the surfaces of the steel strips on the outlet side of a rolling mill is further improved; meanwhile, the residues of the emulsion in special parts of heads, tails, sides and the like of the steel strips can be removed; the surface quality of the finished steel strips can be improved.
Description
Technical field
The present invention relates to cold rolling technology field, especially relate to a kind of Cold-strip Steel Surface emulsion cleaning device and method.
Background technology
In cold-strip steel process, because needs lubricate the operation of rolling, make roll keep cooling, a large amount of emulsion can be used.After rolling terminates, the emulsion remaining in belt steel surface must be disposed, otherwise, can bring that serious quality problems-Emulsion spot, band steel blackspot, band steel black-tape, belt steel surface are dirty, coiling machine skidding etc.Common sweep-out method adopts large discharge compressed air to purge finished strip surface, in purge, when compressed air purging pressure is lower, effectively cannot removes emulsion, cause emulsion residue serious; When compressed air purging pressure is excessive, stronger air-flow reflection can be produced, cause emulsion to splash.Therefore, the simple method adopting compressed air to purge effectively can not remove the residual emulsion of belt steel surface.
For making up the deficiency that compressed air purges, Chinese patent (CN102671966A) adopts negative-pressure ward method further on the basis that compressed air purges.Negative-pressure ward ratio juris is: increase the device such as enclosed hood or sealing plate, the space that formation one is relatively airtight between top working roll, band steel upper surface, enclosed hood or sealing plate, this space is connected with negative pressure generating device, and emulsion is taken away by the negative pressure utilizing negative pressure generating device to produce.This scheme needs special negative pressure generating device, adds energy consumption; And, because top working roll and band steel are all motions, make the sealing of confined space lower, negative pressure does not often reach working stamndard, cause emulsion to be difficult to be sucked away, under the effect of gravity and centrifugal force, drop to band steel upper surface, elimination effect is very undesirable.
In addition, in order to remove the emulsion remained of band steel lower surface, Chinese patent (CN203356222U) is provided with negative suction system further below band steel.But band steel lower surface emulsion remained on strip width direction skewness, especially the edge of steel both sides is with to have a large amount of emulsion taken out of from roll gap and a large amount of emulsions being purged to edge by compressed air, and negative-pressure ward method suction capactity is relatively little, so a large amount of emulsions cannot be sopped up at all, cause the edge with steel in the operation of rolling to have more Coolant Stains.
Prior art is all arrange emulsion cleaning device at the outlet side of next-door neighbour's milling train, the emulsion of the belt steel surface just completing rolling is removed, but effective sweep-out method is not had for the residual of privileged sites emulsion such as strip steel head, afterbody, edge.
Summary of the invention
The technical problem to be solved in the present invention is: the scavenge unit and the method that provide a kind of Cold-strip Steel Surface emulsion, the method is by the coordinated of multiple reset mode, the elimination effect of further raising milling train outlet side belt steel surface emulsion, remove the residual of the privileged sites emulsions such as strip steel head, afterbody, edge simultaneously, avoid the defect such as emulsion splashing, drippage caused because of air-flow reflection, thus the overall problem solving band steel surface residual emulsion, improve the surface quality of band steel finished product.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of Cold-strip Steel Surface emulsion cleaning device, comprise stripper, lower stripper, top working roll and upper backup roll roll gap place blowing mechanism, described emulsion cleaning device also comprises the band steel upper surface sealing liquid mechanism being positioned at milling train outlet side, top working roll surface liquid removing mechanism, band steel lower surface is except liquid mechanism, with steel upper surface blowing mechanism and the upper backup roll surface liquid removing mechanism being positioned at inlet of rolling mill side, described band steel upper surface sealing liquid organization establishes is on the lower surface of described upper stripper, described top working roll surface liquid removing organization establishes is on the shovel head of the front end of described upper stripper, described band steel lower surface is except liquid organization establishes is on described lower stripper, described band steel upper surface blowing mechanism is fixed in frame and the rear be arranged at along upper stripper described in the band steel direction of motion.
Preferably, the pipeline that described band steel upper surface sealing liquid mechanism comprises multiple nozzle and is communicated with compressed gas source, described pipeline is connected with described nozzle through described upper stripper from top to bottom, and described pipeline and described upper stripper adopt seamless link.
Preferably, described top working roll surface liquid removing mechanism comprises air cleft, gas-flow deflector, balancing gate pit, feeder and the pipeline be communicated with compressed gas source, the front end shovel head that described air cleft is arranged at described upper stripper is arranged along described top working roll length direction, described gas-flow deflector is arranged at described air cleft opening part, described balancing gate pit is the cavity being positioned at shovel head inside, described upper stripper front end, described feeder is the cell body that described upper stripper front end shovel head and described gas-flow deflector are formed, described upper stripper front end shovel head is the recessed cylinder matched with described top working roll external cylindrical surface with the surface that described top working roll is close to.
Preferably, described band steel lower surface removes liquid mechanism and comprises multiple negative-pressure ward suction nozzle and multiple nozzle, described suction nozzle to be arranged on the shovel head of lower stripper front end and to be parallel to the arranged in a straight line of strip width direction in many, described nozzle is positioned at the below of band steel lower surface both sides edge, and described nozzle is connected with compressed gas source by pipeline.
Preferably, described suction nozzle is air amplifier structure, described suction nozzle is connected with compressed gas source by pipeline, and described suction nozzle is connected by fast insertion type joint with the pipeline of transporting compressed gas body, and described suction nozzle and described nozzle are parallel on the straight line in strip width direction at same to be arranged.
Preferably, described band steel upper surface blowing mechanism comprises purging beam and multiple edge purge nozzle, described edge purge nozzle is arranged at the rear of described purging beam along the band steel direction of motion, described purging beam is provided with multiple nozzle, and described purging beam nozzle is connected with compressed gas source by pipeline with described edge purge nozzle.
Preferably, described upper backup roll surface liquid removing mechanism is scraping fluid plate or roller wiper, is provided with clearance automatic compensation mechanism in described scraping fluid plate or roller wiper.
Preferably, described upper stripper is being provided with baffle plate away between the end face of described top working roll and described feeder, and described baffle plate is 45 ° ~ 135 ° with the band steel direction of motion.
A kind of Cold-strip Steel Surface emulsion sweep-out method, comprises the following steps:
(1). open emulsion cleaning device, then open emulsion spraying system, rolled band steel starts;
(2). by top working roll and upper backup roll roll gap place blowing mechanism, blow Compressed Gas to the roll gap place between top working roll and upper backup roll, by between top working roll and upper backup roll roll gap place pile up emulsion remove;
(3). by upper backup roll surface liquid removing mechanism, the emulsion on upper backup roll surface is removed, the emulsion droplet removed drops on inlet of rolling mill side, the gap occurred between auto-compensation upper backup roll surface liquid removing mechanism of clearance automatic compensation mechanism and upper backup roll;
(4). by band steel upper surface sealing liquid mechanism, Compressed Gas is blowed to the band steel upper surface between top working roll and upper stripper, by emulsion shutoff in the region near roll gap between top working roll and band steel, excessive emulsion flows out from band steel both sides edge;
(5). Compressed Gas removes the balancing gate pit in liquid mechanism by the supreme work roll surface of Cemented filling, Compressed Gas is sprayed by air cleft by after balancing gate pit's voltage stabilizing, make jet-impingement direction tangent with the top working roll face of cylinder and identical with top working roll rotation direction by gas-flow deflector, and then the emulsion on top working roll surface is peeled off by Compressed Gas, and emulsion is brought to feeder, emulsion flows out from feeder both-side opening, the recessed cylinder of upper stripper front end shovel head and top working roll outer circumference surface are kept a fixed gap, Compressed Gas is after described air cleft ejection, a negative pressuren zone is formed in air cleft exit, the emulsion on top working roll surface is maintained when starting to enter space and is adsorbed on top working roll on the surface,
(6). by band steel lower surface except the suction nozzle negative-pressure ward in liquid mechanism removes the emulsion being with steel lower surface, by band steel lower surface except the nozzle in liquid mechanism, both sides edge to band steel lower surface blows Compressed Gas, removes the emulsion of band steel lower surface both sides edge;
(7). being removed being with the residual emulsion of steel upper surface to carry out purging behind step (1) ~ (6) by the multiple nozzles on the purging beam in band steel upper surface blowing mechanism, by the edge purge nozzle in band steel upper surface blowing mechanism, the emulsion remaining in band steel both sides edge after purging beam and purging being carried out purging and removing;
(8). the emulsion that baffle collected is splashed, the emulsion after collection flow to the feeder on stripper, flows out from feeder both-side opening;
(9). rolled band steel terminates, and closes emulsion spraying system, then closes emulsion cleaning device.
Preferably, in described step (5), the gas pressure of air cleft ejection is 0.2MPa ~ 0.25MPa, and the space between the recessed cylinder of described upper stripper front end shovel head and described top working roll external cylindrical surface is 3mm ~ 5mm.
The invention has the beneficial effects as follows:
1., in production reality, the emulsion that most of emulsion spraying system sprays accumulates in top working roll and gap place and the top working roll surface of being with steel upper surface.The present invention sprays Compressed Gas by air cleft, utilizes the high pressure of Compressed Gas, is formed " air knife ", and peeled off by the emulsion on top working roll surface, the emulsion after stripping is brought to the feeder being positioned at air cleft back upper place by air-flow, flow out along feeder both sides, the front end of upper stripper shovel head is transformed into the recessed cylinder matched with top working roll external cylindrical surface and keeps a fixed gap, Compressed Gas is after described air cleft ejection, a negative pressuren zone is formed near gap in air cleft outlet, the emulsion on top working roll surface is maintained when starting to enter space and is adsorbed on top working roll on the surface, emulsion is adsorbed to " air knife " workspace and implements to peel off by the rotation with top working roll, the effect of emulsion is peeled off in further raising " air knife ", thus solve adopt negative-pressure ward method top working roll surfactant emulsion liquid is aspirated existing for defect, emulsion is effectively prevented to drop onto belt steel surface from top working roll surface, greatly reduce band steel upper surface middle part, the strip Coolant Stains of edge.
2. will accumulate on basis that top working roll and the gap place of band steel upper surface and most of emulsion on top working roll surface remove in top working roll surface liquid removing mechanism, the present invention adopts Compressed Gas by the region of remaining emulsion shutoff roll gap between close top working roll and band steel further, excessive emulsion flows out from band steel both sides edge, thus solves in conventional method the problems such as the emulsion adopting high pressure air to purge generation splashes, waste compressed air, energy consumption are high.Binding protein steel upper surface sealing liquid mechanism of top working roll surface liquid removing mechanism can remove accumulating in top working roll totally with the gap place of band steel upper surface and a large amount of emulsions on top working roll surface effectively.
3. by arranging baffle plate on upper stripper, the space of a relative closure can be formed between frame and baffle plate, stop, collect because Compressed Gas purges the splashing emulsion produced, the belt steel surface completing clear operation after avoiding the emulsion splashed to drop on stripper, cause secondary pollution, emulsion after collection flow to the feeder on stripper, takes full advantage of existing equipment.
4. the suction nozzle self be arranged on lower stripper can produce negative pressure, without the need to connecting negative pressure generating device, improve suction capactity, whole system structure is simple, failure rate is low, and maintenance is convenient, and while negative-pressure ward, increase Compressed Gas to purge, the two combines and substantially increases the emulsion remained elimination effect of band steel lower surface, solves the simple defect adopted existing for negative-pressure ward method.
5. the present invention is while being optimized improvement to the scavenge unit on milling train outlet side stripper, set up at upper stripper rear again and purge beam and edge purge nozzle, multiple sweep-out method is made to form gradient coordinated, form an entirety, effectively reduce take the lead, the privileged sites emulsion such as magnetic tape trailer, edge residual, thus entirety improves the surface quality of finished strip.
Accompanying drawing explanation
The structural representation of the Cold-strip Steel Surface emulsion cleaning device that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the top working roll surface liquid removing mechanism in the Cold-strip Steel Surface emulsion cleaning device that Fig. 2 provides for the embodiment of the present invention;
Band steel lower surface in the Cold-strip Steel Surface emulsion cleaning device that Fig. 3 provides for the embodiment of the present invention is except the structural representation of liquid mechanism.
In figure: 1 band steel, 2 top working rolls, 3 upper backup rolls, stripper on 4,5 times strippers, 6 top working rolls and upper backup roll roll gap place blowing mechanism, 7 band steel upper surface sealing liquid mechanisms, 8 top working roll surface liquid removing mechanisms, 9 band steel lower surfaces remove liquid mechanism, 91 nozzles, 92 suction nozzles, and 10 purge beams, 11 edge purge nozzle, 12 baffle plates, 13 upper backup roll surface liquid removing mechanisms, 14 pushing mechanisms, 15 front end shovel heads, 16 air clefts, 17 gas-flow deflectors, 18 balancing gate pits, 19 feeders.
Detailed description of the invention
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just for further illustrating characteristic sum of the present invention a little, instead of limiting to the claimed invention.
The invention provides a kind of Cold-strip Steel Surface emulsion cleaning device, comprise stripper 4, lower stripper 5, the top working roll being positioned at milling train outlet side and upper backup roll roll gap place blowing mechanism 6, be with steel upper surface sealing liquid mechanism 7, top working roll surface liquid removing mechanism 8, be with steel lower surface except liquid mechanism 9, be with steel upper surface blowing mechanism and be positioned at the upper backup roll surface liquid removing mechanism 13 of inlet of rolling mill side.
Be arranged on the lower surface of upper stripper 4 with steel upper surface sealing liquid mechanism 7, the pipeline comprising multiple nozzle and be communicated with compressed gas source, pipeline is connected with nozzle through upper stripper 4 from top to bottom, and pipeline and upper stripper 4 adopt seamless link.Pipeline and upper stripper 4 adopt seamless link, do not have gap, and this kind of design can make stripper 4 form one not have apertured plate body, prevent the emulsion of stripper upper surface from flowing out from gap, drop to band steel upper surface.
Top working roll surface liquid removing mechanism 8 is arranged on the front end shovel head of stripper 4, the pipeline that top working roll surface liquid removing mechanism 8 comprises air cleft 16, gas-flow deflector 17, balancing gate pit 18, feeder 19 and is communicated with compressed gas source, the front end shovel 15 that air cleft 16 is arranged at stripper 4 is arranged along top working roll 2 length direction, gas-flow deflector 17 is arranged at air cleft 16 opening part, balancing gate pit 18 is for being positioned at the cavity of shovel 15 inside, upper stripper front end, and feeder 19 is upper stripper front end shovel 15 cell body formed with described gas-flow deflector 17.Upper stripper front end shovel 4 is the recessed cylinder matched with top working roll 2 external cylindrical surface with the surface that top working roll 2 is close to.
Band steel lower surface removes liquid mechanism 9 and is arranged on described lower stripper 5, band steel lower surface removes liquid mechanism 9 and comprises multiple negative-pressure ward suction nozzle 92 and multiple nozzle 91, suction nozzle 92 to be arranged on the shovel head of lower stripper 5 front end and to be parallel to the arranged in a straight line of band steel 1 width in many, nozzle 91 is positioned at the below of band steel 1 lower surface both sides edge, and nozzle 91 is connected with compressed gas source by pipeline.Preferably, suction nozzle 92 is for self producing the air amplifier structure of negative pressure, and suction nozzle 92 is connected with compressed gas source by pipeline, and suction nozzle 92 and nozzle 91 are parallel to strip width direction straight line at same is arranged.Suction nozzle 92 is connected by fast insertion type joint with the pipeline of transporting compressed gas body, shortens the clean and maintenance time of suction nozzle.
In frame and the rear be arranged at along upper stripper 4 described in the band steel direction of motion is fixed on steel upper surface blowing mechanism, comprise and purge beam 10 and multiple edge purge nozzle 11, edge purge nozzle 11 is arranged at and purges the rear of beam 10 along the band steel direction of motion, purge on beam 10 and be provided with multiple nozzle, purge beam 10 nozzle and be connected with compressed gas source by pipeline with edge purge nozzle 11.In the present embodiment, purging beam 10 is V-shaped.
Upper backup roll surface liquid removing mechanism 13 is scraping fluid plate or roller wiper, is provided with clearance automatic compensation mechanism in scraping fluid plate or roller wiper.
Upper stripper 4 is being provided with baffle plate 12 away between the end face of top working roll 2 and feeder 19, and baffle plate 12 is 45 ° ~ 135 ° with band steel 1 direction of motion.
Upper stripper 4 and lower stripper 5 promote by pushing mechanism 14 and can along rolling direction away from or near corresponding upper and lower working roll, be provided with position sensor in pushing mechanism 14, the gap between upper and lower stripper with corresponding upper and lower working roll can be monitored.
Present invention also offers a kind of Cold-strip Steel Surface emulsion sweep-out method, comprise the following steps:
(1). first open emulsion cleaning device, then open emulsion spraying system, rolled band steel starts.The strict sequencing controlling unlatching emulsion cleaning device and emulsion spraying system, can avoid a large amount of emulsion to stick to belt steel surface, but band steel moves across scavenge unit, the problem that emulsion cannot be removed.
(2). by top working roll and upper backup roll roll gap place blowing mechanism 6, carry out purging to the emulsion at roll gap place between top working roll 2 and upper backup roll 3 to remove, reduce the alluvial of emulsion between upper backup roll and top working roll, prevent emulsion from entering outlet side from the entrance side of milling train, reduce emulsion droplet and fall on stripper 4.
(3). by upper backup roll surface liquid removing mechanism 13, the emulsion on upper backup roll 3 surface is removed, the emulsion droplet removed drops on inlet of rolling mill side, avoids a large amount of emulsion to be taken to milling train outlet side by upper backup roll 3, is dropped in band steel 1 surface completing rolling.In the present embodiment, arrange clearance automatic compensation mechanism in scraping fluid plate or roller wiper, when scraping fluid plate or roller wiper because attrition etc. occur gap between reason and upper backup roll 3, compensation mechanism can this gap of auto-compensation.
(4). by multiple nozzles of band steel upper surface sealing liquid mechanism 7, Compressed Gas is blowed to band steel 1 upper surface between top working roll 2 and upper stripper 4, the flow of conservative control Compressed Gas, pressure, and preferably use the nozzle with fan-shaped purging face, by emulsion shutoff in the region near top working roll roll gap, excessive emulsion can flow out from band steel both sides edge, thus solves in conventional method the problems such as the emulsion adopting high pressure air to purge generation splashes, waste compressed air, energy consumption are high.
(5). Compressed Gas removes the balancing gate pit 18 in liquid mechanism 8 by the supreme work roll surface of Cemented filling, Compressed Gas is sprayed by air cleft 16 by after balancing gate pit 18 voltage stabilizing, make jet-impingement direction tangent with top working roll 2 face of cylinder and identical with top working roll 2 rotation direction by gas-flow deflector 17, formed " air knife ", and then the emulsion on top working roll surface 2 is peeled off by Compressed Gas, and emulsion is brought to feeder 19, emulsion flows out from feeder 19 both-side opening, in the present embodiment, the gas pressure that air cleft 16 sprays is 0.2MPa ~ 0.25MPa, recessed cylinder and top working roll 2 outer circumference surface of upper stripper front end shovel 15 keep a fixed gap, after Compressed Gas sprays from described air cleft 16, export at air cleft 16 and form a negative pressuren zone near gap, the emulsion on top working roll 2 surface is maintained when starting to enter space and is adsorbed on top working roll 2 on the surface, increase and peeled off by " air knife " the emulsification liquid measure taken away, in the present embodiment, space between the recessed cylinder of the front end shovel 15 of upper stripper 4 and described top working roll 2 external cylindrical surface is 3mm ~ 5mm.The method solve adopt negative-pressure ward method top working roll surfactant emulsion liquid is aspirated existing for defect, effectively prevent emulsion to drop onto band steel upper surface from top working roll surface, greatly reduce the strip Coolant Stains of band steel upper surface middle part, edge.
(6). by the emulsion of band steel lower surface except multiple suction nozzle suction belt steel lower surfaces of liquid mechanism 9, by the multiple nozzles of band steel lower surface except liquid mechanism, both sides edge to band steel 1 lower surface blows Compressed Gas, removes the emulsion of band steel lower surface both sides edge.Preferably, suction nozzle is the air amplifier structure that self can produce negative pressure, and suction nozzle and nozzle coexist to be parallel to be with on the straight line of steel 1 width and arrange.In the present embodiment, nozzle is SILWENT710 type air nozzle.Due on lower stripper 5 suction nozzle self can produce negative pressure, without the need to connecting negative pressure generating device, improve suction capactity, whole system structure is simple, failure rate is low, and maintenance is convenient, and while negative-pressure ward, increase Compressed Gas to purge, the two combines and substantially increases the emulsion remained elimination effect of band steel lower surface, solves the simple defect adopted existing for negative-pressure ward method.
(7). band steel moves across above-mentioned steps (1) ~ (6), the emulsion of overwhelming majority belt steel surface is eliminated, but unavoidably have splashing, the emulsion residue that the reasons such as drippage cause, the present invention takes into full account and produces reality, band steel upper surface blowing mechanism is set at upper stripper rear further, removed being with the residual emulsion of steel upper surface to carry out purging behind step (1) ~ (6) by the multiple nozzles purged on beam 10, by edge purge nozzle 11, the emulsion remaining in band steel both sides edge after purging beam 10 and purging is carried out purging to remove, in the present embodiment, purging beam 10 is V-shaped, purge beam 10 to be connected with compressed gas source by pipeline, purging beam 10 top nozzle with band steel upper surface angle is 30 ° ~ 45 °, it is simultaneously 10 ° ~ 20 ° with being parallel to the band steel vertical plane angle being with steel center line, namely nozzle purges direction is not completely contrary with the band steel direction of motion, but deflection steel edge portion certain angle, be positioned at edge on the left of the nozzle deflection band steel on the left of band steel upper surface center line, be positioned at edge on the right side of the nozzle deflection band steel on the right side of band steel upper surface center line, nozzle purges face can cover whole band steel upper surface in the direction of the width.Due to on-the-spot bleed pressure and stability of flow, select according to actual service condition the SILWENT705 type air nozzle that air consumption is low, purging power is large.In the present embodiment, edge purge nozzle is SILWENT710 type air nozzle.This improves the emulsion remained problem of tail part of band steel at the end of head takes emulsion, rolling out of when efficiently solving band steel threading.
While the sweep-out method that the present invention mentions in step (2) ~ (6) is optimized improvement, set up step (7), make the abundant coordinated of multiple sweep-out method, form an entirety, effectively reduce take the lead, the privileged sites emulsion such as magnetic tape trailer, edge residual, thus entirety improves the surface quality of finished strip.
(8). on upper stripper 4, be provided with baffle plate 12 away between the end face of top working roll 2 and feeder 19, baffle plate 12 be 45 ° ~ 135 ° with the band steel direction of motion, preferably 90 °.By baffle plate 12, the space of a relative closure can be formed between frame and baffle plate 12, stop, collect because Compressed Gas purges the splashing emulsion produced, the belt steel surface completing clear operation after avoiding the emulsion splashed to drop on stripper, cause secondary pollution, emulsion after collection flow to the feeder 19 on stripper, takes full advantage of existing equipment.
(9). rolled band steel terminates, and closes emulsion spraying system, then closes emulsion cleaning device.Similarly the strict sequencing controlling closedown emulsion cleaning device and emulsion spraying system, a large amount of emulsion can be avoided to stick to belt steel surface, but scavenge unit cuts out, the problem that emulsion cannot be removed.
Above a kind of Cold-strip Steel Surface emulsion cleaning device provided by the present invention and method are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a Cold-strip Steel Surface emulsion cleaning device, comprise stripper, lower stripper, top working roll and upper backup roll roll gap place blowing mechanism, it is characterized in that, also comprise be positioned at milling train outlet side band steel upper surface sealing liquid mechanism, top working roll surface liquid removing mechanism, band steel lower surface is except liquid mechanism, band steel upper surface blowing mechanism and the upper backup roll surface liquid removing mechanism being positioned at inlet of rolling mill side; Described band steel upper surface sealing liquid organization establishes is on the lower surface of described upper stripper, described top working roll surface liquid removing organization establishes is on the shovel head of the front end of described upper stripper, described band steel lower surface is except liquid organization establishes is on described lower stripper, and described band steel upper surface blowing mechanism is fixed in frame and the rear be arranged at along upper stripper described in the band steel direction of motion.
2. Cold-strip Steel Surface emulsion cleaning device according to claim 1, it is characterized in that, the pipeline that described band steel upper surface sealing liquid mechanism comprises multiple nozzle and is communicated with compressed gas source, described pipeline is connected with described nozzle through described upper stripper from top to bottom, and described pipeline and described upper stripper adopt seamless link.
3. Cold-strip Steel Surface emulsion cleaning device according to claim 1, it is characterized in that, described top working roll surface liquid removing mechanism comprises air cleft, gas-flow deflector, balancing gate pit, feeder and the pipeline be communicated with compressed gas source, the front end shovel head that described air cleft is arranged at described upper stripper is arranged along described top working roll length direction, described gas-flow deflector is arranged at described air cleft opening part, described balancing gate pit is the cavity being positioned at shovel head inside, described upper stripper front end, described feeder is the cell body that described upper stripper front end shovel head and described gas-flow deflector are formed, described upper stripper front end shovel head is the recessed cylinder matched with described top working roll external cylindrical surface with the surface that described top working roll is close to.
4. Cold-strip Steel Surface emulsion cleaning device according to claim 1, it is characterized in that, described band steel lower surface removes liquid mechanism and comprises multiple negative-pressure ward suction nozzle and multiple nozzle, described suction nozzle to be arranged on the shovel head of lower stripper front end and to be parallel to the arranged in a straight line of strip width direction in many, described nozzle is positioned at the below of band steel lower surface both sides edge, and described nozzle is connected with compressed gas source by pipeline.
5. Cold-strip Steel Surface emulsion cleaning device according to claim 4, it is characterized in that, described suction nozzle is air amplifier structure, described suction nozzle is connected with compressed gas source by pipeline, described suction nozzle is connected by fast insertion type joint with the pipeline of transporting compressed gas body, and described suction nozzle and described nozzle are parallel on the straight line in strip width direction at same to be arranged.
6. Cold-strip Steel Surface emulsion cleaning device according to claim 1, it is characterized in that, described band steel upper surface blowing mechanism comprises purging beam and multiple edge purge nozzle, described edge purge nozzle is arranged at the rear of described purging beam along the band steel direction of motion, described purging beam is provided with multiple nozzle, and described purging beam nozzle is connected with compressed gas source by pipeline with described edge purge nozzle.
7. Cold-strip Steel Surface emulsion cleaning device according to claim 1, is characterized in that, described upper backup roll surface liquid removing mechanism is scraping fluid plate or roller wiper, is provided with clearance automatic compensation mechanism in described scraping fluid plate or roller wiper.
8. Cold-strip Steel Surface emulsion cleaning device according to claim 1, it is characterized in that, described upper stripper is being provided with baffle plate away between the end face of described top working roll and described feeder, and described baffle plate is 45 ° ~ 135 ° with the band steel direction of motion.
9. a Cold-strip Steel Surface emulsion sweep-out method, is characterized in that, comprises the following steps:
(1). open emulsion cleaning device, then open emulsion spraying system, rolled band steel starts;
(2). by top working roll and upper backup roll roll gap place blowing mechanism, blow Compressed Gas to the roll gap place between top working roll and upper backup roll, by between top working roll and upper backup roll roll gap place pile up emulsion remove;
(3). by upper backup roll surface liquid removing mechanism, the emulsion on upper backup roll surface is removed, the emulsion droplet removed drops on inlet of rolling mill side, the gap occurred between auto-compensation upper backup roll surface liquid removing mechanism of clearance automatic compensation mechanism and upper backup roll;
(4). by band steel upper surface sealing liquid mechanism, Compressed Gas is blowed to the band steel upper surface between top working roll and upper stripper, by emulsion shutoff in the region near roll gap between top working roll and band steel, excessive emulsion flows out from band steel both sides edge;
(5). Compressed Gas removes the balancing gate pit in liquid mechanism by the supreme work roll surface of Cemented filling, Compressed Gas is sprayed by air cleft by after balancing gate pit's voltage stabilizing, make jet-impingement direction tangent with the top working roll face of cylinder and identical with top working roll rotation direction by gas-flow deflector, and then the emulsion on top working roll surface is peeled off by Compressed Gas, and emulsion is brought to feeder, emulsion flows out from feeder both-side opening, the recessed cylinder of upper stripper front end shovel head and top working roll outer circumference surface are kept a fixed gap, Compressed Gas is after described air cleft ejection, a negative pressuren zone is formed in air cleft exit, the emulsion on top working roll surface is maintained when starting to enter space and is adsorbed on top working roll on the surface,
(6). by band steel lower surface except the suction nozzle negative-pressure ward in liquid mechanism removes the emulsion being with steel lower surface, by band steel lower surface except the nozzle in liquid mechanism, both sides edge to band steel lower surface blows Compressed Gas, removes the emulsion of band steel lower surface both sides edge;
(7). being removed being with the residual emulsion of steel upper surface to carry out purging behind step (1) ~ (6) by the multiple nozzles on the purging beam in band steel upper surface blowing mechanism, by the edge purge nozzle in band steel upper surface blowing mechanism, the emulsion remaining in band steel both sides edge after purging beam and purging being carried out purging and removing;
(8). the emulsion that baffle collected is splashed, the emulsion after collection flow to the feeder on stripper, flows out from feeder both-side opening;
(9). rolled band steel terminates, and closes emulsion spraying system, then closes emulsion cleaning device.
10. Cold-strip Steel Surface emulsion sweep-out method according to claim 9, it is characterized in that, in described step (5), the gas pressure of air cleft ejection is 0.2MPa ~ 0.25MPa, and the space between the recessed cylinder of described upper stripper front end shovel head and described top working roll external cylindrical surface is 3mm ~ 5mm.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268751A (en) * | 2015-11-30 | 2016-01-27 | 武汉钢铁(集团)公司 | Cold rolling emulsion purging method and purging system thereof |
| CN106734265A (en) * | 2017-01-09 | 2017-05-31 | 中冶南方工程技术有限公司 | The wet jetting piles pattern planisher strip cleaning device and its method of high-speed rolling |
| CN107309284A (en) * | 2017-06-28 | 2017-11-03 | 柳州钢铁股份有限公司 | Remove the emulsion remained device of Cold tandem mill strip steel edge |
| CN108465706A (en) * | 2018-03-15 | 2018-08-31 | 包头钢铁（集团）有限责任公司 | The control method of emulsion sweep module and emulsion sweep module |
| CN110877051A (en) * | 2019-11-28 | 2020-03-13 | 姚仿英 | Cold rolling equipment for steel plate production |
| CN113579003A (en) * | 2021-05-06 | 2021-11-02 | 中冶南方工程技术有限公司 | Leveling machine and blowing process thereof |
| CN113843292A (en) * | 2021-09-26 | 2021-12-28 | 张家港扬子江冷轧板有限公司 | Single-rack cold rolling equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268751A (en) * | 2015-11-30 | 2016-01-27 | 武汉钢铁(集团)公司 | Cold rolling emulsion purging method and purging system thereof |
| CN106734265A (en) * | 2017-01-09 | 2017-05-31 | 中冶南方工程技术有限公司 | The wet jetting piles pattern planisher strip cleaning device and its method of high-speed rolling |
| CN106734265B (en) * | 2017-01-09 | 2018-08-17 | 中冶南方工程技术有限公司 | The wet jetting piles pattern planisher strip cleaning device and its method of high-speed rolling |
| CN107309284A (en) * | 2017-06-28 | 2017-11-03 | 柳州钢铁股份有限公司 | Remove the emulsion remained device of Cold tandem mill strip steel edge |
| CN108465706A (en) * | 2018-03-15 | 2018-08-31 | 包头钢铁（集团）有限责任公司 | The control method of emulsion sweep module and emulsion sweep module |
| CN110877051A (en) * | 2019-11-28 | 2020-03-13 | 姚仿英 | Cold rolling equipment for steel plate production |
| CN110877051B (en) * | 2019-11-28 | 2021-03-23 | 德清县荣昌冷轧带钢有限公司 | Cold rolling equipment for steel plate production |
| CN113579003A (en) * | 2021-05-06 | 2021-11-02 | 中冶南方工程技术有限公司 | Leveling machine and blowing process thereof |
| CN113579003B (en) * | 2021-05-06 | 2023-06-23 | 中冶南方工程技术有限公司 | Levelling machine and purging process thereof |
| CN113843292A (en) * | 2021-09-26 | 2021-12-28 | 张家港扬子江冷轧板有限公司 | Single-rack cold rolling equipment |
| CN113843292B (en) * | 2021-09-26 | 2024-03-29 | 张家港扬子江冷轧板有限公司 | Single-frame cold rolling equipment |
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