CN101433921B - Method for improving product surface quality of hot rolling and leveling machine group - Google Patents
Method for improving product surface quality of hot rolling and leveling machine group Download PDFInfo
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- CN101433921B CN101433921B CN2008102368629A CN200810236862A CN101433921B CN 101433921 B CN101433921 B CN 101433921B CN 2008102368629 A CN2008102368629 A CN 2008102368629A CN 200810236862 A CN200810236862 A CN 200810236862A CN 101433921 B CN101433921 B CN 101433921B
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Abstract
The invention relates to a method for improving the surface quality of a hot-rolling planishing mill set product, which is applied to the hot-rolling planishing mill set and can also be applied to an acid washing machine set. The method for improving the surface quality of the hot-rolling planishing mill is characterized in that strip steel between an uncoiler and an inlet steering pinch roll is transversely curved first in the planishing process of the hot-rolling planishing mill set on the strip steel, and iron scales attached to the surface of the strip steel are peeled off; and the surface of the strip steel is subjected to air blowing on one side of the strip steel, and the peeled iron scales are blown to the other side of the strip steel and sucked away by a dust suction hood which is arranged on the other side of the strip steel. The method obviously improves the surface quality of products, is simple and has low cost.
Description
Technical field
The present invention relates to improve the method for product surface quality of hot rolling and leveling machine group, be applied to the hot-rolled leveling unit, also can be applicable to the pickling unit.
Background technology
In hot-rolled leveling unit and pickling unit production process, the surface attachment of product tape steel (being hot rolled plate) has iron scale, not only reduced the surface quality of finished product, and the high loss of equipment that causes jointly by iron scale and dust, not only increased the cost consumption of manufacturing enterprise, and caused environmental pollution and operating personnel's Health cost, be the another difficult problem of puzzlement steel production enterprise.Though all disposed expensive dust pelletizing system on most hot-rolled leveling units, because the dust matching degree that produces when dust pelletizing system that is disposed and unit are produced is low, and owing to all produce iron scale fragment and dust in many places such as uncoiler, straightener, planishers, the dust pelletizing system configuration lacks specific aim, causes and drops into the situation that substantial contribution but can't be dealt with problems.
Summary of the invention
The object of the present invention is to provide a kind of method that improves product surface quality of hot rolling and leveling machine group, this method can improve product surface quality.
To achieve these goals, technical scheme of the present invention is: the method that improves product surface quality of hot rolling and leveling machine group, it is characterized in that: the band steel is carried out in the formation process at the hot-rolled leveling unit, earlier the band steel between uncoiler and the inlet turning, clamping and conveying roller is carried out transverse curvature, the iron scale that belt steel surface is adhered to peels off; In a side of band steel belt steel surface is blown then, the iron scale that peels off is blowed to the opposite side of being with steel, the iron scale that peels off is siphoned away by the dust shield that is arranged on the opposite side of being with steel.
Described band steel between uncoiler and the inlet turning, clamping and conveying roller is carried out transverse curvature after, and before belt steel surface is blown, the band steel is carried out buckling, the iron scale that belt steel surface is adhered to peels off.
The invention has the beneficial effects as follows: the present invention utilizes steel matrix and iron scale clad material to have greatest differences on performance, the stressed back of matrix material produces certain elastic-plastic deformation, scale on surface is not then owing to have plasticity and breakdown strength is lower, simultaneous oxidation iron sheet and iron-based body poor adhesive force, in the following process process, iron scale peels off, and causes product and equipment damage characteristics.The present invention changes hot-rolled leveling unit mentality of designing, change the passive of iron scale in process comes off into iron scale treatment process section is set before processing, mechanical system by stretching, bending, iron scale is come off from the band steel, utilize Blowing and sucking dust remover again, the iron scale dust of size particles is removed; The present invention has alleviated iron scale effectively to the influence of plate face quality and to the infringement of equipment with to the pollution of environment; The present invention effectively solves the harm that iron scale causes aspects such as product quality, devices consume, ambient influnences.Method of the present invention has significantly improved product surface quality, and method is simple, cost is low.
Description of drawings
Fig. 1 is iron scale scavenge unit of the present invention, a standard pressure-vaccum dust removing apparatus residing position view in the hot-rolled leveling unit;
Fig. 2 is the structural representation of iron scale scavenge unit of the present invention, standard pressure-vaccum dust removing apparatus;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the schematic diagram of transverse curvature pressure roller of the present invention;
Fig. 5 is that the A of Fig. 4 is to view;
Fig. 6 is the schematic diagram of buckling pressure roller of the present invention;
Fig. 7 is the cutaway view of Fig. 6 along the B-B line;
Among the figure: the 1-uncoiler, 2-is with steel, 3-inlet turning, clamping and conveying roller, the 4-straightener, 5-planisher, 6-are cut and are cut, 7-outlet turning, clamping and conveying roller, 8-coiling machine, 9-iron scale scavenge unit, the 10-standard pressure-vaccum dust removing apparatus, the 11-iron scale is removed support, 12-hydraulic cylinder (or cylinder), the 13-bracing frame, 14-transverse curvature pressure roller, 15-dust shield, the 16-blowing nozzle, 17-buckling pressure roller.
The specific embodiment
As shown in Figure 1, existing hot-rolled leveling unit comprise uncoiler 1, inlet turning, clamping and conveying roller 3, straightener 4, planisher 5, cut cut 6, outlet turning, clamping and conveying roller 7, coiling machine 8.
Embodiment 1:
As Fig. 1, Fig. 2, shown in Figure 3, improve the method for product surface quality of hot rolling and leveling machine group, at the hot-rolled leveling unit band steel is carried out in the formation process, earlier the band steel between uncoiler 1 and the inlet turning, clamping and conveying roller 3 is carried out transverse curvature (as Fig. 4, shown in Figure 5, the strip width direction is horizontal, band steel length direction is vertical), the iron scale that belt steel surface is adhered to peels off; In a side of band steel belt steel surface is blown then, the iron scale that peels off is blowed to the opposite side of being with steel, the iron scale that peels off is siphoned away by the dust shield that is arranged on the opposite side of being with steel.
Transverse curvature is realized by the iron scale scavenge unit, the iron scale scavenge unit comprises iron scale removing support 11, hydraulic cylinder 12, bracing frame 13, transverse curvature pressure roller 14, it is hinged that the left part of bracing frame 13 and iron scale are removed support 11, hinged above the right part of bracing frame 13 with the piston rod of hydraulic cylinder 12, it is hinged that the cylinder body of hydraulic cylinder 12 and iron scale are removed support 11, the two ends of transverse curvature pressure roller 14 are provided with on the bearing block by bearing respectively, bearing block is fixed on below the right part of bracing frame 13, and the roller length of transverse curvature pressure roller 14 is more than or equal to the width of band steel.The piston rod of hydraulic cylinder 12 stretches out, and transverse curvature pressure roller 14 is depressed, and the band steel is carried out transverse curvature.
Belt steel surface is blown by blowing nozzle 16 realizations, and blowing nozzle 16 is linked to each other with air compressor machine by tracheae.Dust shield 15 is linked to each other with air exhauster by tracheae.
Embodiment 2:
Substantially the same manner as Example 1, difference is: described band steel between uncoiler 1 and the inlet turning, clamping and conveying roller 3 is carried out transverse curvature after, and before belt steel surface was blown, to band steel buckling (as Fig. 6, shown in Figure 7), the iron scale that belt steel surface is adhered to peeled off.
Laterally (strip width direction for laterally) both ends that the band steel is carried out that buckling is are provided with short buckling pressure roller 17, make the buckling of band steel, and iron scale is come off from the band steel.
Claims (1)
1. improve the method for product surface quality of hot rolling and leveling machine group, it is characterized in that: the band steel is carried out in the formation process at the hot-rolled leveling unit, earlier the band steel between uncoiler and the inlet turning, clamping and conveying roller is carried out transverse curvature, the iron scale that belt steel surface is adhered to peels off; The band steel is carried out buckling, and the iron scale that belt steel surface is adhered to peels off; In a side of band steel belt steel surface is blown then, the iron scale that peels off is blowed to the opposite side of being with steel, the iron scale that peels off is siphoned away by the dust shield that is arranged on the opposite side of being with steel;
Transverse curvature is realized by the iron scale scavenge unit, the iron scale scavenge unit comprises iron scale removing support (11), hydraulic cylinder (12), bracing frame (13), transverse curvature pressure roller (14), it is hinged that the left part of bracing frame (13) and iron scale are removed support (11), hinged above the right part of bracing frame (13) with the piston rod of hydraulic cylinder (12), it is hinged that the cylinder body of hydraulic cylinder (12) and iron scale are removed support (11), the two ends of transverse curvature pressure roller (14) are provided with on the bearing block by bearing respectively, bearing block is fixed on below the right part of bracing frame (13), and the roller length of transverse curvature pressure roller (14) is more than or equal to the width of band steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102368629A CN101433921B (en) | 2008-12-16 | 2008-12-16 | Method for improving product surface quality of hot rolling and leveling machine group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102368629A CN101433921B (en) | 2008-12-16 | 2008-12-16 | Method for improving product surface quality of hot rolling and leveling machine group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101433921A CN101433921A (en) | 2009-05-20 |
| CN101433921B true CN101433921B (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102368629A Active CN101433921B (en) | 2008-12-16 | 2008-12-16 | Method for improving product surface quality of hot rolling and leveling machine group |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642784B (en) * | 2009-08-28 | 2011-08-31 | 中冶南方工程技术有限公司 | Deep bending roll dust remover |
| CN102626726B (en) * | 2012-04-13 | 2014-08-13 | 中冶南方工程技术有限公司 | Straightening and leveling process for hot-rolled high-strength steel |
| CN104624722B (en) * | 2015-01-29 | 2017-04-19 | 浙江富日进精密金属股份有限公司 | Pulling and conveying device for unreeling strip steel coil |
| CN106077148B (en) * | 2016-06-27 | 2017-11-24 | 中冶赛迪工程技术股份有限公司 | A kind of strip back-flexing control method |
| CN111687161B (en) * | 2020-06-22 | 2022-02-25 | 中冶赛迪上海工程技术有限公司 | Dust collection method for strip steel uncoiler |
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2008
- 2008-12-16 CN CN2008102368629A patent/CN101433921B/en active Active
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| Publication number | Publication date |
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| CN101433921A (en) | 2009-05-20 |
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