CN212216612U - Strip steel descaling production line and strip steel descaling system - Google Patents
Strip steel descaling production line and strip steel descaling system Download PDFInfo
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- CN212216612U CN212216612U CN202020803622.9U CN202020803622U CN212216612U CN 212216612 U CN212216612 U CN 212216612U CN 202020803622 U CN202020803622 U CN 202020803622U CN 212216612 U CN212216612 U CN 212216612U
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Abstract
The utility model provides a belted steel descaling production line and belted steel descaling system, this belted steel descaling production line includes: the uncoiler, the straight head straightener, the strip steel descaling system, the strip steel cleaning device, the drying equipment, the coiling steering roller and the coiler are sequentially arranged along the advancing direction of the strip steel; the strip steel descaling system comprises: the strip steel can enter the scale breaking and withdrawal straightening machine after passing through the first S-shaped tension roller mechanism, enter the second S-shaped tension roller mechanism after passing through the scale breaking and withdrawal straightening machine, and enter the sand throwing and descaling machine after passing through the second S-shaped tension roller mechanism. Through the utility model discloses, to the hot rolling belted steel of 0.8mm ~ 4 mm's thin specification among the prior art, the lower technical problem of descaling treatment efficiency who exists has been alleviated.
Description
Technical Field
The utility model relates to a technical field of rolling belted steel especially relates to a belted steel descaling production line and belted steel descaling system.
Background
The hot rolled plate coil is produced by adopting conventional hot continuous rolling, short-flow casting and rolling processes such as ESP (ESP), CAStrip and the like appear, the cast and rolled steel plate is thinner, and the plate shape is poorer than that of the conventional hot continuous rolling. However, the short-flow casting and rolling process saves the occupied area of a factory and the equipment investment due to the short flow. The thickness of the produced thin gauge hot rolled steel strip is usually in the range of 0.8mm to 4 mm.
The surface of the hot-rolled strip steel has iron scales, the iron scales need to be taken out through descaling treatment before being coiled, and the adopted technical scheme mainly comprises the following steps: uncoiling, transverse shearing, straightening, descaling, high-pressure water cleaning, squeezing, drying, oiling and coiling are sequentially carried out. There are two general methods for descaling: carrying out acid washing treatment by adopting an acid washing machine set; and (4) adopting a sand throwing descaling machine to descale by striking steel grit on the surface of the strip steel. Before descaling by using an acid washing unit or a sand blasting descaling machine, a scale breaking withdrawal straightening machine can be used for pre-descaling, and CN109500106A discloses a scale breaking withdrawal straightening machine, wherein the strip steel is repeatedly bent by a bending roller set of the scale breaking withdrawal straightening machine, so that oxide scales on the surface of the strip steel are cracked or fall off, and subsequent acid washing descaling or sand blasting descaling is facilitated.
At present, the sand throwing descaling machine is more and more widely applied to the descaling treatment of strip steel. In a descaling production line of thin hot-rolled strip steel, under the normal condition, the scale is removed mainly by sand blasting and descaling, and the requirement on pre-descaling performed by a scale breaking withdrawal and straightening machine is low; in order to improve the descaling effect, the angle of a throwing impeller, the rotating speed of a sand thrower and the opening degree of a particle control valve in the sand throwing descaling machine are generally regulated and controlled, so that the sand throwing and descaling power is increased. However, in terms of actual operation, the descaling unit speed is slow and the production efficiency is low for hot-rolled steel strips with thin gauge of 0.8mm to 4 mm.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a belted steel descaling production line and belted steel descaling system to alleviate among the prior art to the hot rolling belted steel of 0.8mm ~ 4 mm's thin specification, the lower technical problem of descaling treatment efficiency who exists.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a strip steel descaling production line, include: the uncoiler, the straight head straightener, the strip steel descaling system, the strip steel cleaning device, the drying equipment, the coiling steering roller and the coiler are sequentially arranged along the advancing direction of the strip steel;
the strip steel descaling system comprises: the strip steel can enter the scale breaking and withdrawal straightening machine after passing through the first S-shaped tension roller mechanism, enter the second S-shaped tension roller mechanism after passing through the scale breaking and withdrawal straightening machine, and enter the sand throwing and descaling machine after passing through the second S-shaped tension roller mechanism.
In a preferred embodiment, the strip descaling production line comprises a welding machine, and the welding machine is arranged between the straight-head straightening machine and the strip descaling system.
In a preferred embodiment, the strip descaling line includes a leveler disposed between the drying apparatus and the take-up turning roll.
In a preferred embodiment, the strip descaling production line comprises a surface inspection instrument, and the surface inspection instrument is arranged between the planisher and the winding steering roller.
In a preferred embodiment, the strip steel descaling production line comprises a trimming circle shear arranged between the surface inspection tester and the winding steering roller, and the trimming circle shear is connected with a slitter edge winder.
In a preferred embodiment, the strip steel descaling production line comprises a three-roller tension roller mechanism arranged between the trimming rotary shears and the coiling steering roller.
The utility model provides a belted steel descaling system is applied to foretell belted steel descaling production line, include: the strip steel can enter the scale breaking and withdrawal straightening machine after passing through the first S-shaped tension roller mechanism, enter the second S-shaped tension roller mechanism after passing through the scale breaking and withdrawal straightening machine, and enter the sand throwing and descaling machine after passing through the second S-shaped tension roller mechanism.
In a preferred embodiment, the first S-shaped tension roller mechanism comprises a first roller and a second roller which are sequentially distributed along the forward direction of the strip steel, and the second S-shaped tension roller mechanism comprises a third roller and a fourth roller which are sequentially distributed along the forward direction of the strip steel;
the first roller is positioned below the second roller, and the fourth roller is positioned below the third roller; or, the first roller is positioned above the second roller, and the fourth roller is positioned above the third roller.
In a preferred embodiment, the diameter of each roller in the first S-shaped tension roller mechanism is in a range of 800mm to 1200mm, and the diameter of each roller in the second S-shaped tension roller mechanism is in a range of 800mm to 1200 mm.
In a preferred embodiment, the scale breaking withdrawal and straightening machine comprises a bending unit, wherein the bending unit comprises an upper bending roller group and a lower bending roller group; the upper bending roller group comprises at least two upper bending working rollers which are sequentially arranged at intervals along the advancing direction of the strip steel; the lower bending roller set is arranged below the upper bending roller set and comprises at least two lower bending working rollers, and the at least two lower bending working rollers and the at least two upper bending working rollers are arranged in a staggered mode.
In a preferred embodiment, the scale breaking withdrawal and straightening machine comprises an inlet steering roll and a straightening roll, wherein the inlet steering roll, the bending unit and the straightening roll are sequentially distributed along the advancing direction of the strip steel.
0.8mm ~ 4 mm's thin specification hot rolling belted steel is in the utility model provides a when descaling in the belted steel descaling production line, belted steel is in proper order through decoiler, straight first straightener, belted steel descaling system, belted steel belt cleaning device, drying equipment, batch steering roll and coiling machine. In the strip steel descaling system, a first S-shaped tension roller mechanism and a second S-shaped tension roller mechanism which are arranged in front of and behind the scale breaking withdrawal straightening machine provide larger tension for the scale breaking withdrawal straightening machine, so that in the process of repeatedly bending the strip steel in the scale breaking withdrawal straightening machine, oxide scales on the surface generate more cracks, and the pre-descaling effect on the strip steel is obviously enhanced; at the same time, a first S-shaped tension roller mechanism and a second S-shaped tension roller mechanism
The tension control device can generate larger tension to enable the strip steel to move more stably by participating in the tension control of the whole line of the strip steel production line, and particularly in a sand-throwing descaling machine, the larger tension generated by the first S-shaped tension roller mechanism and the second S-shaped tension roller mechanism can play a role in stabilizing the strip steel, reduce the vibration of the strip steel and enable the sand-throwing energy to be consumed as much as possible in removing the iron oxide scales on the surface of the strip steel. In the strip steel descaling production line, the scale on the surface of the strip steel entering the sand throwing descaling machine has more cracks, the sand throwing energy acts on the scale more efficiently, the iron oxide slope is more efficiently beaten and washed away, the sand throwing and descaling effects are effectively improved, the time of the strip steel being beaten by the sand throwing in the sand throwing descaling machine can be shortened, the descaling efficiency is improved, the production speed is accelerated, the consumption is reduced, and the operation cost is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a strip steel descaling production line provided by the present invention;
FIG. 2a is a schematic view of a first embodiment of a strip descaling system according to the present invention;
FIG. 2b is a schematic view of a second embodiment of a strip descaling system according to the present invention;
FIG. 3 is a schematic structural diagram of a scale breaking withdrawal and straightening machine in the strip steel descaling production line shown in FIG. 1;
FIG. 4 is a schematic view of a strip steel descaling method of the strip steel descaling production line provided by the utility model;
FIG. 5a is a front view of the strip steel cleaning device provided by the present invention;
FIG. 5b is a top view of the strip cleaning apparatus shown in FIG. 5 a;
FIG. 5c is a schematic view showing a brush roll mechanism in the strip steel cleaning apparatus shown in FIG. 5 a;
FIG. 5d is an enlarged view of a portion of the scrubber in the strip cleaning apparatus shown in FIG. 5 b;
FIG. 5e is a partially enlarged view of the scrubber in the strip cleaning apparatus shown in FIG. 5 a.
The reference numbers illustrate:
1A, an uncoiler; 100A, the advancing direction of the strip steel; 2A, turning a pinch roll; 3A, straightening the machine with straight head;
41A, first crop shears; 42A, second crop shears;
5A, a welding machine;
60A, a strip steel descaling system;
6A, a scale breaking withdrawal and straightening machine; 67A, a frame; 68A, a bending unit;
610A, an upper bending roller group; 61A, an upper bending roller system; 611A, an upper bending work roll; 63A, an upper bending roller set lifting mechanism;
620A, a lower bending roller group; 62A, a lower bending roll system; 621A, a lower bending work roll; 64A, a lower bending roller set lifting mechanism;
65A, an inlet turning roll; 651A, an upper press roll;
660A, an upper straightening roller group; 66A, an upper straightening roll;
71A, a first S-shaped tension roller mechanism; 711A, a first roller; 712A, a second roller;
72A, a second S-shaped tension roller mechanism; 721A, a third roller; 722A, a fourth roller;
8A, a sand throwing and descaling machine;
a9, a strip steel cleaning device; 10A, drying equipment;
11A, a surface inspection tester; 12A, a deviation rectifying system; 13A, trimming circle shears; 14A, a slitter edge coiler; 15A, a three-roller tension roller mechanism; 16A, an oiling machine; 17A, a coiling machine; 18A, a leveling machine; 19A, a winding steering roller;
100. a box body; 11. a strip steel feed inlet; 12. a strip steel discharge port; 13. the direction of feed;
200. a brush roll mechanism; 201. a first brush roller mechanism; 202. a second brush roller mechanism;
21. an upper brush roll; 211. brushing a sand rod; 2111. a connecting rod; 212. collecting tank;
22. a lower brush roll; 221. brushing a sand rod;
23. a brush roll drive mechanism; 231. a brush roll motor; 24. a first cylinder; 25. a lifting mechanism; 251. a screw elevator; 26. a synchronizing shaft;
300. a first liquid spraying mechanism; 31. a first upper spray pipe; 32. a first lower spray pipe;
400. a second liquid spraying mechanism; 41. a second upper spray pipe; 42. a second lower spray pipe;
500. scrubbing and brushing; 51. a bristle group; 52. a second cylinder;
600. a wringing roller mechanism; 61. an upper wringing roller; 62. a lower wringing roller; 63. a wringing drive mechanism; 64. a third cylinder;
71. a carrier roller; 72. a guide plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
The utility model provides a strip steel descaling production line, as shown in figure 1, this production line includes: the uncoiler 1A, the straight head straightener 3A, the strip steel descaling system 60A, the strip steel cleaning device A9, the drying equipment 10A, the coiling steering roller 19A and the coiler 17A are sequentially arranged along the strip steel advancing direction 100A; the strip descaling system 60A includes: the first S-shaped tension roller mechanism 71A, the scale breaking withdrawal and straightening machine 6A, the second S-shaped tension roller mechanism 72A and the sand throwing and descaling machine 8A are sequentially arranged along the strip steel advancing direction 100A, the strip steel enters the scale breaking withdrawal and straightening machine 6A after passing through the first S-shaped tension roller mechanism 71A, enters the second S-shaped tension roller mechanism 72A after passing through the scale breaking withdrawal and straightening machine 6A, and enters the sand throwing and descaling machine 8A after passing through the second S-shaped tension roller mechanism 72A.
When thin hot-rolled strip steel with the thickness of 0.8 mm-4 mm is descaled in the strip steel descaling production line, the strip steel sequentially passes through an uncoiler 1A, a straight head straightener 3A, a strip steel descaling system 60A, a strip steel cleaning device A9, a drying device 10A, a coiling steering roller 19A and a coiling machine 17A. In the strip steel descaling system 60A, a first S-shaped tension roller mechanism 71A and a second S-shaped tension roller mechanism 72A which are arranged in front of and behind the scale breaking withdrawal straightening machine 6A provide larger tension for the scale breaking withdrawal straightening machine 6A, so that in the process of repeatedly bending the strip steel in the scale breaking withdrawal straightening machine 6A, oxide scales on the surface generate more cracks, and the pre-descaling effect on the strip steel is obviously enhanced; meanwhile, the first S-shaped tension roller mechanism 71A and the second S-shaped tension roller mechanism 72A participate in tension control of the whole line of the strip steel production line, so that larger tension can be generated, the strip steel can move more stably, and particularly in the sand-throwing descaler 8A, the larger tension generated by the first S-shaped tension roller mechanism 71A and the second S-shaped tension roller mechanism 72A can play a role in stabilizing the strip steel, reduce the vibration of the strip steel, and enable the sand-throwing energy to be consumed as much as possible in removing the iron oxide scales on the surface of the strip steel. In the strip steel descaling production line, the scale on the surface of the strip steel entering the sand throwing descaling machine 8A has more cracks, the sand throwing energy acts on the scale more efficiently, the iron oxide slope is more efficiently brushed, the sand throwing and descaling effects are effectively improved, the time of the strip steel being hit by the sand throwing in the sand throwing descaling machine 8A can be shortened, the descaling efficiency is improved, the production speed is accelerated, the consumption is reduced, and the operation cost is saved.
As shown in figure 1, the utility model provides a belted steel descaling production line is including turning to pinch roll 2A, and straight head straightener 3A locates to turn to behind pinch roll 2A, and straight head straightener 3A can be with belted steel head straightening, the follow-up area of wearing of being convenient for reduces the card and hinders.
An acid-free descaling production line of a common thin hot-rolled strip steel usually adopts a push-pull type single-roll production process, and each roll of strip steel needs to be threaded, so that an S-shaped tension roller set with a large wrap angle is difficult to configure, and a machine set cannot establish large tension and is not beneficial to mechanical descaling and tension control of the machine set. When the front end of each roll of strip steel enters equipment, the front end of each roll of strip steel is generally guided by manpower or by a threading guide rod; the thin strip steel is easy to break down in the threading process and difficult to ensure smooth operation.
Further, the strip steel descaling production line comprises a welding machine 5A, the welding machine 5A is arranged between the straight-head straightening machine 3A and the strip steel descaling system 60A, the welding machine 5A can connect the front and the rear rolls of strip steel end to form a continuous state, so that the strip steel continuously moves among various process devices, strip threading faults are reduced, the strip steel is guaranteed to smoothly run in the sand throwing and descaling machine 8A, the damage to the devices caused by strip threading accidents is avoided, and the operation rate of the machine set is improved. As shown in fig. 1, the strip steel descaling production line includes a first crop shear 41A, the first crop shear 41A is disposed before the welding machine 5A, and the first crop shear 41A makes the end of the strip steel flat for welding.
In order to ensure the surface quality of the finished strip steel and eliminate the plate shape defects of the hot-rolled thin strip steel, and control the surface roughness of the strip steel, the strip steel descaling production line comprises a flattening machine 18A arranged between a drying device 10A and a coiling steering roller 19A, so as to reduce the surface roughness of the strip steel and improve the mechanical property.
In one embodiment of the present invention, the strip steel descaling production line includes a surface inspection instrument 11A, and the surface inspection instrument 11A is disposed between the leveler 18A and the winding turn roll 19A. After the surface of the strip steel is leveled by the leveling machine 18A, the surface quality of the strip steel is checked by the surface inspection instrument 11A, so that the running state of the sand-throwing descaling machine 8A can be adjusted according to the detected surface quality condition of the strip steel, and the descaling effect is improved. The surface inspection tester 11A comprises high-definition cameras arranged on the upper surface and the lower surface of the strip steel, and the high-definition cameras can scan the surface of the strip steel in real time; the existing production line usually adopts a gray level meter for detecting the brightness of the surface of the strip steel, the detection of the brightness of the surface of the strip steel cannot reflect the specific degree of cleaning of iron scales, and the gray level meter generally only detects the central area of the strip steel; the surface inspection instrument 11A can inspect the quality of the surface of the strip steel in the full-width range, and more comprehensively reflect the surface state of the strip steel. The surface inspection instrument 11A may be configured with a defect database, which stores the surface topography of the normally cleaned strip steel, and compares the picture with the defects in the database, so as to analyze the cleaning state of the strip steel surface and judge the strip steel surface state. The surface inspection instrument 11A can perform closed-loop control with the sand throwing descaler 8A, and controls the rotation speed of a thrower, the angle of a throwing impeller, and the opening degree of a particle control valve in the sand throwing descaler 8A according to the detected surface state of the strip steel. In the sand-throwing descaler 8A, the flow rate of sand water can be controlled by adjusting the rotation speed of the sand-throwing device, and the proportion of the sand water can be controlled by the particle control valve. The surface inspection instrument 11A detects the state of the full-width plate surface strip steel to control the rotating speed and the casting angle of the sand thrower of the sand-throwing descaler 8A in a closed-loop mode, so that the water-sand ratio is reasonably adjusted, and unnecessary energy consumption is reduced. For example: if the detected surface topography shows that the sand throwing is excessive, a transmission signal is sent to the sand throwing device to reduce the rotating speed so as to reduce the consumption of steel sand and electric energy, or the speed of the unit is increased so as to improve the yield, so that the aim of reducing the consumption of ton steel is fulfilled.
As shown in FIG. 1, the strip steel descaling production line further comprises a second crop shear 42A, the second crop shear 42A is arranged behind the surface inspection tester 11A, and the second crop shear 42A segments the continuous strip steel so as to facilitate the subsequent coiling of the coiling machine 17A
In order to realize the function of edge cutting, the strip steel descaling production line comprises an edge cutting circle shear 13A arranged between a surface inspection instrument 11A and a coiling turning roll 19A, and the edge cutting circle shear 13A is connected with a slitter edge coiling machine 14A. Through the edge cutting treatment, various requirements of users can be met. Preferably, the strip steel descaling production line comprises a deviation correcting system 12A, a surface inspection instrument 11A, a second crop shear 42A, a deviation correcting system 12A and a trimming circle shear 13A which are sequentially arranged along the strip steel advancing direction 100A.
In order to keep the strip steel tension stable at the outlet, the strip steel descaling production line comprises a three-roller tension roller mechanism 15A arranged between the trimming circle shear 13A and the coiling steering roller 19A so as to provide stable post tension for the coiling machine 17A and ensure the coiling effect. Further, an oiling machine 16A is provided between the three-roll tension roll mechanism 15A and the take-up steering roll 19A.
The strip descaling line shown in fig. 1 can be operated according to the following steps: after being uncoiled by an uncoiler 1A, strip steel enters a straight head straightener 3A along the uncoiler 1A and a steering pinch roll 2A, the straightened strip steel runs to a first head cutting shear 41A to cut out an out-of-tolerance or damaged strip head, and continuously runs to a welding machine 5A to be welded with the tail part of the previous strip steel; after welding, the strip steel runs at the designed process speed, and is subjected to pre-descaling through a first S-shaped tension roller mechanism 71A, a scale breaking withdrawal and straightening machine 6A and a second S-shaped tension roller mechanism 72A; then the strip steel enters a sand-throwing descaler 8A to remove the iron scale on the surface of the strip steel; then, the strip steel enters a strip steel cleaning device A9 to remove steel grit and iron scale remained on the surface of the strip steel, and the water remained on the surface is squeezed out, and then the water on the surface of the strip steel is dried by a drying device 10A; the processed strip steel enters a planisher 18A for surface planishing, and then is subjected to surface quality inspection through a surface inspection instrument 11A; the weld is slit at the second crop shear 42A. The tail of the previous coil of strip is thrown through a deviation correcting system 12A, a trimming circle shear 13A, a slitter edge coiling machine 14A, a three-roller tension roller mechanism 15A and an oiling machine 16A, and enters a coiling machine 17A to be coiled, the coil of strip is conveyed away through a coil stripping trolley, and the head of the next coil of strip is threaded to the coiling machine 17A to be produced.
After the thin hot-rolled strip steel with the thickness of 0.8-4 mm is processed by the strip steel descaling production line, the surface cleanliness can reach Sa.2.5, and the unit speed can be greatly improved under the condition of the same number of sand throwing and descaling machines. The first S-shaped tension roller mechanism and the second S-shaped tension roller mechanism can control the tension of the whole production line, and are favorable for accelerating and reducing the consumption of the sand-throwing descaler 8A.
Example two
The utility model provides a belted steel descaling system is applied to foretell belted steel descaling production line, as shown in figure 2a and figure 2b, this belted steel descaling system includes: the first S-shaped tension roller mechanism 71A, the scale breaking withdrawal and straightening machine 6A, the second S-shaped tension roller mechanism 72A and the sand throwing and descaling machine 8A are sequentially arranged along the strip steel advancing direction 100A, the strip steel enters the scale breaking withdrawal and straightening machine 6A after passing through the first S-shaped tension roller mechanism 71A, enters the second S-shaped tension roller mechanism 72A after passing through the scale breaking withdrawal and straightening machine 6A, and enters the sand throwing and descaling machine 8A after passing through the second S-shaped tension roller mechanism 72A.
In the strip steel descaling system, a first S-shaped tension roller mechanism 71A and a second S-shaped tension roller mechanism 72A which are arranged in front of and behind the scale breaking withdrawal straightening machine 6A provide larger tension for the scale breaking withdrawal straightening machine 6A, so that in the process of repeatedly bending the strip steel in the scale breaking withdrawal straightening machine 6A, oxide scales on the surface generate more cracks, and the pre-descaling effect on the strip steel is obviously enhanced; meanwhile, the first S-shaped tension roller mechanism 71A and the second S-shaped tension roller mechanism 72A participate in tension control of the whole line of the strip steel production line, so that larger tension can be generated, the strip steel can move more stably, and particularly in the sand-throwing descaler 8A, the larger tension generated by the first S-shaped tension roller mechanism 71A and the second S-shaped tension roller mechanism 72A can play a role in stabilizing the strip steel, reduce the vibration of the strip steel, and enable the sand-throwing energy to be consumed as much as possible in removing the iron oxide scales on the surface of the strip steel. In the strip steel descaling production line, the scale on the surface of the strip steel entering the sand throwing descaling machine 8A has more cracks, the sand throwing energy acts on the scale more efficiently, the iron oxide slope is more efficiently brushed, the sand throwing and descaling effects are effectively improved, the time of the strip steel being hit by the sand throwing in the sand throwing descaling machine 8A can be shortened, the descaling efficiency is improved, the production speed is accelerated, the consumption is reduced, and the operation cost is saved.
As shown in fig. 1, in order to ensure the descaling effect of the strip steel, one or more sand-throwing descalers 8A may be sequentially disposed along the strip steel advancing direction 100A in the strip steel descaling system, and the strip steel may sequentially pass through the two sand-throwing descalers 8A at a high speed.
In order to enable the first S-shaped tension roller mechanism 71A and the second S-shaped tension roller mechanism 72A to be matched with each other and provide stable tension for the scale breaking withdrawal and straightening unit 6A, the first S-shaped tension roller mechanism 71A comprises a first roller 711A and a second roller 712A which are sequentially distributed along the strip steel advancing direction 100A, and the second S-shaped tension roller mechanism 72A comprises a third roller 721A and a fourth roller 722A which are sequentially distributed along the strip steel advancing direction 100A; as shown in fig. 2A, the first roller 711A is positioned below the second roller 712A, and the fourth roller 722A is positioned below the third roller 721A; alternatively, as shown in fig. 2b, the first roller 711A is positioned above the second roller 712A, and the fourth roller 722A is positioned above the third roller 721A.
The scale breaking withdrawal and straightening machine 6A may be a scale breaking withdrawal and straightening machine of the prior art, for example, a scale breaking withdrawal and straightening machine disclosed in CN 109500106A. In one embodiment of the present invention, the scale breaking withdrawal and straightening machine in the strip steel descaling system includes a frame 67A and a bending unit 68A, as shown in fig. 2A, 2b and 3, the bending unit 68A includes an upper bending roller system 61A and a lower bending roller system 62A; the upper bending roll system 61A includes at least two upper bending work rolls 611A, and the at least two upper bending work rolls 611A are sequentially arranged at intervals along the strip steel advancing direction 100A; the lower bending roll system 62A is arranged below the upper bending roll system 61A, the lower bending roll system 62A comprises at least two lower bending work rolls 621A, the at least two lower bending work rolls 621A and the at least two upper bending work rolls 611A are arranged in a staggered mode, the upper bending roll system 61A and the lower bending roll system 62A are correspondingly matched, the upper bending roll system 61A can move up and down under the driving of the upper bending roll group 610A, and the lower bending roll system 62A can move up and down under the driving of the lower bending roll group 620A, so that the strip steel is bent. Preferably, the scale breaking withdrawal and straightening machine 6A is a wet scale breaking withdrawal and straightening machine.
As shown in fig. 3, the upper bending roller group 610A includes an upper bending roller group lifting mechanism 63A for driving the upper bending roller system 61A to ascend and descend, and the lower bending roller group 620A includes a lower bending roller group lifting mechanism 64A for driving the lower bending roller system 62A to ascend and descend. When the strip steel needs to be bent, the lower bending roller group lifting mechanism 64A drives the lower bending roller system 62A to move upwards, and the upper bending roller group lifting mechanism 63A drives the upper bending roller system 61A to move downwards; when the scale breaking withdrawal and straightening unit 6A is in a non-working state or a roll changing state, the lower bending roll group lifting mechanism 64A drives the lower bending roll system 62A to descend.
The lower bending roll system 62A and the upper straightening roll 66A are adjusted to set positions; when the weld passes through the scale breaking withdrawal and straightening machine 6A, the upper bending roller system 61A of the scale breaking withdrawal and straightening machine 6A is pressed down. After the upper bending roller system 61A contacts with the strip steel, the nozzles in the roller set spray water to the surface of the strip steel, so that iron oxide powder is prevented from flying around to affect the environment, and in addition, the water can be sprayed to clean the iron oxide scales on the surface of the strip steel, so that the burden of circular filtration caused by entering a sand throwing descaler is avoided.
As shown in fig. 3, the scale breaking withdrawal straightening machine 6A includes an entrance turning roll 65A and an upper straightening roll 66A, and the entrance turning roll 65A, the bending unit 68A, and the upper straightening roll 66A are sequentially distributed in the strip advancing direction 100A. The upper straightening rollers 66A can move up and down under the drive of the upper straightening roller group 660A. In one embodiment, a cooperating upper press roller 651A is provided above the inlet turn roller 65A.
In the descaling process of the thin hot rolled strip of 0.8mm to 4mm, in order to provide a large tension to the scale breaker withdrawal and straightening unit 6A, the diameter of each roll in the first S-shaped tension roll mechanism 71A is in the range of 800mm to 1200mm, and the diameter of each roll in the second S-shaped tension roll mechanism 72A is in the range of 800mm to 1200 mm. The wrap angle of each roller in the first S-shaped tension roller mechanism 71A and the wrap angle of each roller in the second S-shaped tension roller mechanism 72A are preferably 210 °, and the tension range of the first S-shaped tension roller mechanism 71A and the tension range of the second S-shaped tension roller mechanism 72A are 50kN to 180kN, respectively.
The sand throwing and descaling machine 8A adopts wet sand throwing, and the sand throwing and descaling machine 8A comprises a sand throwing head, a box body, a collecting box, a sand-water separator, a circulating filtering system, a mist discharging system and a circulating cooling system. The sand throwing can be that the steel sand and the water are mixed together and thrown to the surface of the strip steel or that the sand and the water are separately thrown to the surface of the strip steel. The sand throwing descaler 8A has no acid liquor pollution, and steel grit and water can be recycled, so that waste gas and waste water are reduced, and the sand throwing descaler is more environment-friendly.
The strip steel cleaning device A9 can remove the iron oxide powder and steel grit remained on the surface of the strip steel through brushing, washing, water retaining and squeezing, thereby ensuring the surface cleanliness of the strip steel.
EXAMPLE III
The inventor researches a steel strip descaled by a steel grit spraying mode, and finds that: during descaling, after steel grit is stripped of iron scale of the strip steel, some tiny steel grit is inlaid on the surface of the strip steel. The high-pressure water pressure is very high, most of surface steel grit and dirt can be removed, but the jet force is very high when the steel grit is used for removing the oxide on the surface of the strip steel during descaling, a plurality of tiny particles are embedded into the surface of the strip steel, and the particles are difficult to clean out by washing water flow.
Therefore, the utility model provides a belted steel belt cleaning device, as shown in fig. 5a and 5b, this belted steel belt cleaning device includes: the strip steel feeding device comprises a box body 100, a strip steel feeding port 11 and a strip steel discharging port 12, wherein a strip steel feeding direction 13 of strip steel entering the box body 100 points to the strip steel discharging port 12 along the strip steel feeding port 11; the brush roll mechanism 200 comprises a brush roll driving mechanism 23, an upper brush roll 21 and a lower brush roll 22 which are oppositely arranged, strip steel can pass through the space between the upper brush roll 21 and the lower brush roll 22, and the brush roll driving mechanism 23 is used for driving the upper brush roll 21 and the lower brush roll 22 to rotate.
The strip steel after the descaling step enters the box 100 through the strip steel feed opening 11 and passes through between the upper brush rolls 21 and the lower brush rolls 22. The upper brush roller 21 and the lower brush roller 22 are driven to rotate by the brush roller driving mechanism 23, and the moving direction of the contact part of the upper brush roller 21 and the strip steel is kept opposite to the moving direction of the strip steel; the moving direction of the contact part of the lower brush roll 22 and the strip steel is kept opposite to the moving direction of the strip steel, the bristles of the upper brush roll 21 and the bristles of the lower brush roll 22 can generate a strong cleaning effect on the strip steel, and can respectively clean out impurity particles such as steel sand embedded in the surface of the strip steel, so that the cleaning effect is improved, and the technical problem that the strip steel after the descaling step in the prior art is easy to be cleaned unclean is solved.
Both ends of the upper brush roller 21 and both ends of the lower brush roller 22 are respectively mounted to bearing housings. The brush roller driving mechanism 23 includes a brush roller motor 231 drivingly connected to the upper brush roller 21 and a brush roller motor 231 drivingly connected to the lower brush roller 22. Preferably, the brush roller motor 231 is a variable frequency motor, which facilitates adjustment of the rotation speed of the upper brush roller 21 and the rotation speed of the lower brush roller 22 according to the speed of the production line. Preferably, the bristles of the upper and lower brush rollers 21 and 22 are made of nylon.
In an embodiment of the present invention, the strip steel cleaning apparatus includes at least one set of first liquid spraying mechanism 300 disposed in the case 100, and the first liquid spraying mechanism 300 includes a first upper liquid spraying pipe 31 for spraying liquid to the bristles of the upper brush roller 21 and a first lower liquid spraying pipe 32 for spraying liquid to the bristles of the lower brush roller 22. The first upper liquid spraying pipe 31 is located above the strip steel, the first lower liquid spraying pipe 32 is located below the strip steel, the first upper liquid spraying pipe 31 and the first lower liquid spraying pipe 32 respectively extend along the axial direction of the upper brush roller 21, and a plurality of spraying openings distributed at intervals are formed in the pipe wall. The liquid sprayed from the first liquid spraying mechanism 300 can clean the cleaned foreign particles and dirt, and can take away the heat of the bristles in the brush roller mechanism 200 to cool the bristles, thereby prolonging the service life of the upper brush roller 21 and the lower brush roller 22. Preferably, the liquid sprayed from the first upper spray pipe 31 is sprayed to the position of the upper brush roller 21 contacting the strip steel, and the liquid sprayed from the first lower spray pipe 32 is sprayed to the position of the lower brush roller 22 contacting the strip steel.
Further, at least one group of brush roller mechanisms 200 comprises a first brush roller mechanism 201 and a second brush roller mechanism 202 which are sequentially distributed along the feeding direction 13; at least one set of the first liquid spraying mechanisms 300 includes the first liquid spraying mechanism 300 for spraying liquid to the first brush roll mechanism 201 and the first liquid spraying mechanism 300 for spraying liquid to the second brush roll mechanism 202, so as to enhance the cleaning effect on the strip steel.
As shown in fig. 5a, the first brush roller mechanism 201, the first liquid spraying mechanism 300 which sprays liquid to the first brush roller mechanism 201, the second brush roller mechanism 202, and the first liquid spraying mechanism 300 which sprays liquid to the second brush roller mechanism 202 are sequentially distributed along the feeding direction 13. The first liquid ejection mechanisms 300 eject the liquids toward the brush roller mechanisms 200 in the reverse directions of the feeding direction 13, respectively. Specifically, the first upper spray pipes 31 spray the liquid in a direction inclined from the top downward in the direction opposite to the feeding direction 13, and the first lower spray pipes 32 spray the liquid in a direction inclined from the bottom upward in the direction opposite to the feeding direction 13. By arranging the first upper spray pipes 31 and the first lower spray pipes 32 in the above manner, the spray flow can better clean impurities from the surface of the strip and reduce the temperature of the brush roller.
In one embodiment of the present invention, the strip steel cleaning apparatus includes at least one set of second liquid spraying mechanisms 400 disposed in the box 100, and the second liquid spraying mechanisms 400 are used for spraying liquid toward the strip steel to wash the surface of the strip steel. Specifically, the second liquid ejection mechanism 400 includes a second upper liquid ejection tube 41 and a second lower liquid ejection tube 42. The second upper liquid spraying pipe 41 is located above the strip steel, the second lower liquid spraying pipe 42 is located below the strip steel, the second upper liquid spraying pipe 41 and the second lower liquid spraying pipe 42 respectively extend along the axial direction of the upper brush roller 21, and a plurality of spraying openings distributed at intervals are formed in the pipe wall. Further, the spraying direction of the second upper spraying pipe 41 and the spraying direction of the second lower spraying pipe 42 are perpendicular to the feeding direction 13, so that the washing effect on the strip steel is enhanced.
In order to facilitate control of the separation and approach between the upper brush roller 21 and the lower brush roller 22, bearing housings at both ends of the upper brush roller 21 are slidably coupled to the case 100, so that the upper brush roller 21 can slide up and down with respect to the case 100; the brush roller mechanism 200 includes a first air cylinder 24 connected to the upper brush roller 21, and the first air cylinder 24 is used to drive the upper brush roller 21 to move in the up-and-down direction. Specifically, the piston rod of the first cylinder 24 is connected to the bearing housing of the upper brush roller 21.
Further, the brush roll mechanism 200 comprises a lifting mechanism 25 connected with the upper brush roll 21, the lifting mechanism 25 is used for adjusting the distance between the upper brush roll 21 and the lower brush roll 22, fine adjustment of the position of the upper brush roll 21 is achieved, and after bristles of the upper brush roll 21 or bristles of the lower brush roll 22 are worn, the upper brush roll 21 can be driven to move downwards with high precision, the stability of the cleaning strength of the upper brush roll 21 and the lower brush roll 22 to the steel is guaranteed, the cleaning effect is improved, the service life of the upper brush roll 21 and the lower brush roll 22 is prolonged, and the replacement frequency is reduced. Preferably, the elevating mechanism 25 employs a screw elevator 251, and the screw elevator 251 is connected to a cylinder body of the first cylinder 24 to drive the first cylinder 24 and the upper brush roller 21 to move together.
More preferably, the bearing seats at both ends of the upper brush roller 21 are respectively connected with first cylinders 24, and each first cylinder 24 is respectively connected with a spiral elevator 251; the spiral lifters 251 of both ends of the upper brush roller 21 are coupled by a synchronizing shaft 26, the spiral lifter 251 of one end is provided with a motor for driving the lifting, and the spiral lifter 251 of the other end is provided with an encoder for calculating the amount of the lifting displacement to ensure the accuracy of the amount of the pressing down.
When the strip steel cleaning device operates, strip steel moves forwards along the feeding direction 13, impurities on the surface of the strip steel can be brushed away from the strip steel by the reverse motion of the lower surface of the upper brush roll 21 along the feeding direction 13, and part of the impurities can be attached to bristles; in order to reduce the foreign matters attached to the upper brush roller 21 and move again to the strip steel with the rotation of the upper brush roller 21, the inventor modified the strip steel cleaning apparatus: as shown in fig. 5a and 5c, the brush roller mechanism 200 includes an upper sanding bar 211, the upper sanding bar 211 contacts with the outer circumferential surface of the upper brush roller 21, and when the upper brush roller 21 rotates, the bristles collide against the upper sanding bar 211, which is advantageous for separating foreign substances attached to the bristles from the bristles. Preferably, the upper brush bar 211 extends along the axial direction of the upper brush roller 21, and both ends are respectively fixedly connected with the bearing seats of the upper brush roller 21 through the connecting rods 2111.
The upper brush bar 211 can be installed at any position of the circumferential direction of the upper brush roller 21, the upper brush roller 21 and the upper brush bar 211 move relatively, and when the bristles collide with the upper brush bar 211, impurities can be promoted to be separated from the bristles under the action of centrifugal force. However, the inventors found that: impurities can continue to move under the action of inertia and gravity after being separated from the bristles, and part of impurities can fall onto the surface of the strip steel again. For this purpose, the inventor arranges the upper sand brushing rod 211 at one side of the upper brush roller 21 close to the strip steel feed inlet 11 and above the axis of the upper brush roller 21; and, the brush roll mechanism 200 includes a collecting groove 212, and the collecting groove 212 is disposed above the upper brush bar 211, so that the impurities are separated from the bristles and then continuously move upward and fall into the collecting groove 212.
The upper surface of the lower brush roll 22 moves in the reverse direction of the feeding direction 13, impurities on the lower surface of the strip steel can be brushed away from the strip steel, and part of the impurities can be attached to the bristles; in order to reduce the foreign matters attached to the lower brush rolls 22 and move again to the strip steel with the rotation of the lower brush rolls 22, the inventors modified the strip steel cleaning apparatus: as shown in fig. 5a and 5c, the brush roller mechanism 200 includes a lower brush sand bar 221, the lower brush sand bar 221 contacts with the outer circumferential surface of the lower brush roller 22, and the bristles collide against the lower brush sand bar 221 when the lower brush roller 22 rotates, thereby facilitating the foreign substances attached to the bristles to be separated from the bristles by centrifugal action. Preferably, the lower sand brushing rod 221 extends along the axial direction of the lower brush roller 22, and two ends of the lower sand brushing rod are fixedly connected with bearing seats of the lower brush roller 22 through connecting rods respectively.
The lower sand brushing rod 221 may be installed at any position in the circumferential direction of the lower brush roll 22, and preferably, the inventor sets the lower sand brushing rod 221 at a side of the lower brush roll 22 close to the strip steel feed inlet 11 and below the axis of the lower brush roll 22, and after the bristles collide with the lower sand brushing rod 221, the impurities are separated from the bristles and fall to the bottom of the box 100.
In one embodiment of the present invention, the strip steel cleaning apparatus includes a scrubber 500 for contacting with the upper surface of the strip steel, the scrubber 500 is disposed on one side of the second liquid spraying mechanism 400 close to the strip steel discharge port 12; the scrubbing brush 500 is provided with at least one group of brush bristles 51 for contacting with the upper surface of the strip steel, and the brush bristles in the brush bristles 51 are arranged along a path inclined from the center to the outer side along the feeding direction along the width direction of the upper surface of the strip steel. As shown in fig. 5b and 5d, the width direction of the upper surface of the strip steel is parallel to the axial direction of the upper brush roller 21; the strip steel moves along the feeding direction 13, the bristles in the bristle group 51 are in contact with the upper surface of the strip steel, and liquid such as water on the upper surface of the strip steel moves forwards along with the strip steel and can move outwards under the guidance of the bristle group 51, so that the liquid is brushed away from the strip steel. Preferably, the bristles of the bristle group 51 are arranged in series along the arrangement path thereof, and the bristles are natural bristles.
Further, as shown in fig. 5d, the bristles of the bristle group 51 are arranged in a path inclined from the center to both sides along the feeding direction 13, and the arrangement path of the bristles of the bristle group 51 is bent in a convex shape in the opposite direction to the feeding direction 13, so as to guide the liquid on the surface of the strip steel to sweep to both sides. Preferably, the scrubbing brush 500 is provided with a plurality of bristle groups 51 spaced along the feeding direction 13 to reduce the residual liquid on the surface of the strip.
Further, as shown in fig. 5a and 5e, the strip cleaning apparatus includes a second cylinder 52 connected to the scrubber 500, and the second cylinder 52 is used to drive the scrubber 500 to move up and down so as to make the scrubber 500 close to or far away from the strip.
In an embodiment of the present invention, the strip steel cleaning device includes a wringing roller mechanism 600, the wringing roller mechanism 600 includes an upper wringing roller 61, a lower wringing roller 62 and a wringing driving mechanism 63 connected with the lower wringing roller 62, the upper wringing roller 61 and the lower wringing roller 62 are arranged oppositely, and the strip steel can pass between the upper wringing roller 61 and the lower wringing roller 62 along the feeding direction 13; the wringing drive mechanism 63 is used to drive the lower wringing roller 62 to rotate. When the device is in operation, the upper wringing roller 61 is in contact with the upper surface of the strip steel; the lower wringing roller 62 is in contact with the lower surface of the strip steel, the lower wringing roller 62 is driven by the wringing driving mechanism 63 to rotate, and the moving direction of the contact surface of the lower wringing roller 62 and the strip steel is kept to be the same as the moving direction of the strip steel. The upper wringing roller 61 and the lower wringing roller 62 cooperate to wring away liquid on the surface of the strip steel, so that the moisture on the surface of the strip steel is greatly reduced, the burden of the subsequent drying step is reduced, and the generation of surface defects of the strip steel can be effectively inhibited. Preferably, the wringing drive mechanism 63 includes a variable frequency gear motor and an encoder to control the rotational speed of the lower wringing roller 62 to match the travel speed of the strip.
Further, the upper drying roll 61 is connected with a third cylinder 64, and the third cylinder 64 is used for driving the upper drying roll 61 to move up and down so as to control the separation and approach of the upper drying roll 61 and the lower drying roll 62 and apply pressure to the strip steel. Preferably, the strip cleaning apparatus includes two wringer roller mechanisms 600 distributed along the feed direction 13.
In order to ensure the cleaning effect of the strip steel cleaning device, as shown in fig. 5a, the first brush roll mechanism 201, the first liquid spraying mechanism 300 for spraying liquid to the first brush roll mechanism 201, the second brush roll mechanism 202, the first liquid spraying mechanism 300 for spraying liquid to the second brush roll mechanism 202, the second liquid spraying mechanism 400, the scrubbing brush 500 and the wringing roll mechanism 600 are sequentially distributed along the feeding direction 13.
In an embodiment of the present invention, as shown in fig. 5a, a plurality of rollers 71 and a plurality of guide plates 72 for supporting the strip steel are disposed in the box 100, the plurality of rollers 71 are distributed along the feeding direction 13 at intervals, and the plurality of guide plates 72 are distributed along the feeding direction 13 at intervals, so as to ensure the smooth threading of the strip steel, so that the strip steel moves more stably, and the effects of cleaning steel grit particles and sweeping away moisture by the scrubbing brush are further improved.
Example four
The strip steel descaling production line comprises a welding machine, wherein the welding machine is arranged between a steering pinch roll and a strip steel descaling system; as shown in fig. 4, the strip descaling line may be operated according to the following strip descaling method, which includes:
step S10, uncoiling;
step S20, welding the front and the rear coils of strip steel together end to end;
step S30, descaling;
step S40, cleaning and drying;
and step S50, coiling.
The strip steel descaling method can be used for descaling thin hot-rolled strip steel with the thickness of 0.8-4 mm. Specifically, step S10, uncoiling and conveying the strip steel by the uncoiler 1A and the straight-head straightener 3A; step S20, welding the front and the rear coils of strip steel together end to end by using a welding machine 5A; step S30, descaling by using a strip steel descaling system; step S40, cleaning and drying the strip steel by using the strip steel cleaning device A9 and the drying equipment 10A; in step S50, winding is performed by the winding turn roller 19A and the winder 17A.
Through the first S-shaped tension roller mechanism 71A and the second S-shaped tension roller mechanism 72A, iron oxide scales on the surface of the strip steel entering the sand-throwing descaling machine 8A have more cracks, the sand-throwing energy acts on the iron oxide scales more efficiently, iron oxide slopes are more efficiently beaten and washed away, the sand-throwing descaling effect is effectively improved, the time of the strip steel being beaten by the sand-throwing in the sand-throwing descaling machine 8A can be shortened, the descaling efficiency is improved, the production speed is accelerated, the consumption is reduced, and the operation cost is saved. And step S20, welding the front and the rear coils of strip steel together end to end by using the welding machine 5A, and connecting the strip steel divided into a plurality of sections end to form a continuous state, so that each process device of the strip steel continuously moves, the strip threading fault is reduced, the strip steel is ensured to smoothly run in the sand throwing descaler 8A, the damage of the device caused by the strip threading accident is avoided, and the operation rate of the unit is also improved.
In one embodiment, as shown in fig. 4, the strip descaling method includes: step S60, segmenting the strip steel; step S60 is provided between step S40 and step S50. As shown in fig. 1, the strip steel descaling line further includes a second crop shear 42A, and the second crop shear 42A segments the continuous strip steel after being subjected to the descaling process, and the cleaning and drying processes, so as to facilitate subsequent coiling.
The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (11)
1. The utility model provides a strip steel descaling production line which characterized in that includes: the uncoiler, the straight head straightener, the strip steel descaling system, the strip steel cleaning device, the drying equipment, the coiling steering roller and the coiler are sequentially arranged along the advancing direction of the strip steel;
the strip steel descaling system comprises: the strip steel can enter the scale breaking and withdrawal straightening machine after passing through the first S-shaped tension roller mechanism, enter the second S-shaped tension roller mechanism after passing through the scale breaking and withdrawal straightening machine, and enter the sand throwing and descaling machine after passing through the second S-shaped tension roller mechanism.
2. The strip steel descaling production line of claim 1, wherein the strip steel descaling production line includes a welder, and the welder is disposed between the straight-head straightener and the strip steel descaling system.
3. The strip steel descaling line of claim 1, wherein the strip steel descaling line includes a leveler disposed between the drying apparatus and the take-up turning roll.
4. The strip steel descaling production line of claim 3, wherein the strip steel descaling production line includes a surface inspection gauge, and the surface inspection gauge is disposed between the leveler and the take-up turning roll.
5. The strip steel descaling production line of claim 4, wherein the strip steel descaling production line comprises a trimming circle shear arranged between the surface inspection tester and the winding steering roller, and the trimming circle shear is connected with a slitter edge winder.
6. The strip steel descaling production line of claim 5, wherein the strip steel descaling production line comprises a three-roll tension roll mechanism arranged between the trimming circle shear and the coiling steering roll.
7. A strip steel descaling system for use in the strip steel descaling line according to any one of claims 1 to 6, comprising: the strip steel can enter the scale breaking and withdrawal straightening machine after passing through the first S-shaped tension roller mechanism, enter the second S-shaped tension roller mechanism after passing through the scale breaking and withdrawal straightening machine, and enter the sand throwing and descaling machine after passing through the second S-shaped tension roller mechanism.
8. The strip steel descaling system according to claim 7, wherein the first S-shaped tension roller mechanism comprises a first roller and a second roller which are sequentially distributed along the strip steel advancing direction, and the second S-shaped tension roller mechanism comprises a third roller and a fourth roller which are sequentially distributed along the strip steel advancing direction;
the first roller is positioned below the second roller, and the fourth roller is positioned below the third roller; or, the first roller is positioned above the second roller, and the fourth roller is positioned above the third roller.
9. The strip descaling system of claim 7, wherein the diameter of each roller of the first S-shaped tension roller mechanism is in the range of 800mm to 1200mm, and the diameter of each roller of the second S-shaped tension roller mechanism is in the range of 800mm to 1200 mm.
10. The strip steel descaling system of claim 7, wherein the scale breaking withdrawal straightening machine comprises a bending unit, the bending unit comprising an upper bending roller set and a lower bending roller set;
the upper bending roller group comprises at least two upper bending working rollers which are sequentially arranged at intervals along the advancing direction of the strip steel;
the lower bending roller set is arranged below the upper bending roller set and comprises at least two lower bending working rollers, and the at least two lower bending working rollers and the at least two upper bending working rollers are arranged in a staggered mode.
11. The strip steel descaling system according to claim 10, wherein the scale breaking withdrawal straightener includes an entry turning roll and a straightening roll, and the entry turning roll, the bending unit and the straightening roll are sequentially distributed in a strip steel advancing direction.
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| CN202020803622.9U CN212216612U (en) | 2020-05-14 | 2020-05-14 | Strip steel descaling production line and strip steel descaling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482471A (en) * | 2020-05-14 | 2020-08-04 | 中冶京诚工程技术有限公司 | Strip steel descaling production line, strip steel descaling system and strip steel descaling method |
| CN117732982A (en) * | 2024-02-19 | 2024-03-22 | 四川腾邦科技有限公司 | Multifunctional stamping system and stamping method for magnetic rotating motor iron core |
-
2020
- 2020-05-14 CN CN202020803622.9U patent/CN212216612U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482471A (en) * | 2020-05-14 | 2020-08-04 | 中冶京诚工程技术有限公司 | Strip steel descaling production line, strip steel descaling system and strip steel descaling method |
| CN117732982A (en) * | 2024-02-19 | 2024-03-22 | 四川腾邦科技有限公司 | Multifunctional stamping system and stamping method for magnetic rotating motor iron core |
| CN117732982B (en) * | 2024-02-19 | 2024-05-10 | 四川腾邦科技有限公司 | Multifunctional stamping system and stamping method for magnetic rotating motor iron core |
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