CN214719419U - Device for reducing emulsion residue on surface of strip steel after rolling of 20-roller mill - Google Patents
Device for reducing emulsion residue on surface of strip steel after rolling of 20-roller mill Download PDFInfo
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- CN214719419U CN214719419U CN202120538114.7U CN202120538114U CN214719419U CN 214719419 U CN214719419 U CN 214719419U CN 202120538114 U CN202120538114 U CN 202120538114U CN 214719419 U CN214719419 U CN 214719419U
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- spray beam
- speed nozzle
- strip steel
- steel
- protection
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 45
- 239000010959 steel Substances 0.000 title claims abstract description 45
- 238000005096 rolling process Methods 0.000 title claims abstract description 30
- 239000000839 emulsion Substances 0.000 title abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 42
- 238000007790 scraping Methods 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims description 46
- 238000005507 spraying Methods 0.000 claims description 14
- 238000010926 purge Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000010408 sweeping Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a reduce the remaining device of 20 rolling mill rolling back belted steel surface emulsion, the device sets up at 20 rolling mill export frizing roller rear, including last sweeping spray beam, sweep spray beam down, high-speed nozzle, protection dog, on sweep spray beam, sweep spray beam down and set up respectively in the belted steel top, below, high-speed nozzle is fixed at last sweeping spray beam, sweeps spray beam down on, and high-speed nozzle arranges along perpendicular to belted steel traffic direction, on sweep spray beam, sweep spray beam down and spout fixedly connected with protection dog on the beam, high-speed nozzle sets up between the protection dog. The advantages are that: the device is simple in structure, the device is arranged behind an outlet oil scraping roller of a 20-roller rolling mill, and compressed air blown out by the high-speed nozzle forms an air curtain on the surface of strip steel to prevent residual emulsion from being involved into the strip steel, so that waste products generated by emulsion spots of the strip steel are reduced. The high-speed nozzle can be protected by the arrangement of the protection stop block, and the high-speed nozzle is prevented from being scratched by the warping head of the strip steel.
Description
Technical Field
The utility model belongs to the rolling belted steel field of 20 high rolling mill relates to a reduce the remaining device of 20 high rolling mill rolling back belted steel surface emulsion.
Background
20 the emulsion of the strip steel is remained after rolling by a rolling mill is an important index influencing the cleanness of the plate surface, after the strip steel is rolled by the rolling mill at a high speed, in order to prevent the emulsion from remaining on the surface of the strip steel, oil scrapers are arranged at the outlets of the rolling mill, most of the emulsion remaining on the surface of the strip steel is squeezed out through the squeezing of the upper and lower rollers of the oil scrapers, because the oil scrapers are worn when in use and the strip steel is easy to generate edge waves and the like in the rolling process, the oil scraping effect is poor, the emulsion on the upper and lower surfaces of the strip steel is more remained, and therefore the problems that the surface of the strip steel is easy to generate rusting before annealing, spots which cannot be cleaned and the like are caused, and the surface quality of the strip steel is seriously influenced.
Disclosure of Invention
For overcoming the deficiency of the prior art, the utility model aims at providing a reduce the remaining device of 20 rolling mill rolling back belted steel surface emulsion, reduce rolling back belted steel upper and lower surface's emulsion and remain, reduce the operating pressure when next process washs belted steel, improve the surface quality of final products.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
the utility model provides a device that reduces 20 rolling mill rolling back belted steel surface emulsion is remained, the device sets up in 20 rolling mill export frizing roller rear, including upper blowing spray beam, lower blowing spray beam, high-speed nozzle, protection dog, upper blowing spray beam, lower blowing spray beam set up respectively in belted steel top, below, high-speed nozzle is fixed at upper blowing spray beam, on blowing spray beam down, and high-speed nozzle arranges along perpendicular to belted steel traffic direction, upper blowing spray beam, blow fixedly connected with protection dog on the spray beam down, high-speed nozzle sets up between the protection dog.
Compressed air is introduced into the upper blowing spray beam and the lower blowing spray beam.
The upper blowing spray beam and the lower blowing spray beam are made of stainless steel pipes.
And the upper blowing spray beam is fixed on the thickness gauge protection frame.
And the lower blowing spraying beam is fixed on the threading guide plate table.
The upper blowing spray beam and the lower blowing spray beam are connected with a compressed air pipeline.
And the compressed air pipeline is connected with an electromagnetic valve connected with a PLC rolling mill control system.
The included angle between the air curtain formed by the air sprayed by the high-speed nozzle and the strip steel is 60-75 degrees.
Compared with the prior art, the beneficial effects of the utility model are that:
the device for reducing emulsion residues on the surface of the strip steel after rolling by the 20-roller mill is simple in structure, the device is arranged behind an outlet oil scraping roller of the 20-roller mill, compressed air blown out by a high-speed nozzle forms an air curtain on the surface of the strip steel to block the residual emulsion from being rolled into the strip steel, emulsion residues on the upper surface and the lower surface of the strip steel in a finished product pass during rolling by the 20-roller mill can be effectively solved, the working pressure during cleaning the strip steel in a next process is reduced, the surface quality of a final product is improved, and waste products generated by emulsion spots of the strip steel are reduced. The high-speed nozzle can be protected by the arrangement of the protection stop block, and the high-speed nozzle is prevented from being scratched by the warping head of the strip steel.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of a purge line arrangement.
Fig. 3 is a schematic view of a connection structure of the protection block.
In the figure: the method comprises the following steps of 1-strip steel 2-upper blowing spray beam 3-lower blowing spray beam 4-thickness gauge protection frame 5-threading guide plate table 6-plate roller 7-steel coil 8-compressed air pipeline 9-electromagnetic valve 10-oil scraping roller 11-protection check block 12-high-speed nozzle.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
Referring to fig. 1-3, the device for reducing emulsion residue on the surface of a strip steel after rolling by a 20-roll mill is arranged behind an oil scraping roller 10 at the outlet of the 20-roll mill and in front of a plate type roller 6 and comprises an upper blowing spray beam 2, a lower blowing spray beam 3, a high-speed nozzle 12 and a protection stop block 11, wherein the upper blowing spray beam 2 and the lower blowing spray beam 3 are respectively arranged above and below the strip steel 1, the high-speed nozzle 12 is fixed on the upper blowing spray beam 2 and the lower blowing spray beam 3, and the high-speed nozzle 12 is arranged along the direction vertical to the running direction of the strip steel 1, so that blowing of the upper surface and the lower surface of the strip steel 1 is realized. The upper blowing spraying beam 2 and the lower blowing spraying beam 3 are fixedly connected with protection check blocks 11, and the high-speed nozzle 12 is arranged between the protection check blocks 11 and protects the high-speed nozzle 12 from being damaged by the warping of the strip steel 1. The protection block 11 can be made of steel plates and is directly welded on the upper blowing spray beam 2 and the lower blowing spray beam 2. The upper blowing spraying beam 2 and the lower blowing spraying beam 3 are made of stainless steel pipes, so that the service life of the blowing spraying beam is prolonged. The high-speed nozzle 12 can be a Switzerland Schwant 705PPL high-speed nozzle 12, the speed of compressed air is increased to supersonic speed, the air curtain has larger kinetic energy, and the purging effect is obviously improved. The distance between the high-speed nozzle 12 and the surface of the strip steel 1 is 120-150mm, so that the purging effect is ensured. The air curtain formed by the air sprayed by the high-speed nozzles 12 forms an included angle of 60-75 degrees with the strip steel 1.
Compressed air is introduced into the upper blowing spray beam 2 and the lower blowing spray beam 3, and the emulsion is blown by the compressed air. The upper blowing spray beam 2 is fixed on the thickness gauge protection frame 4, and the stable installation of the upper blowing spray beam 2 is ensured. The lower blowing spray beam 3 is fixed on the threading guide plate table 5, so that field equipment is fully utilized, a bracket is not required to be installed simply, and the cost is reduced.
The upper blowing spray beam 2 and the lower blowing spray beam 3 are connected with a compressed air pipeline 8 to provide an air source for the high-speed nozzle 12. The compressed air pipeline 8 is connected with an electromagnetic valve 9. During actual installation, the electromagnetic valve 9 is a 24V normally closed electromagnetic valve and is directly connected with a PLC rolling mill control system of the rolling mill, the electromagnetic valve 9 does not need to be opened during the first four-pass rolling, and the rolling mill is put into use during the final secondary production, so that unnecessary energy consumption can be reduced.
Claims (8)
1. The device is characterized in that the device is arranged behind an outlet oil scraping roller of a 20-roll mill and comprises an upper blowing spraying beam, a lower blowing spraying beam, a high-speed nozzle and a protection stop block, wherein the upper blowing spraying beam and the lower blowing spraying beam are respectively arranged above and below strip steel, the high-speed nozzle is fixed on the upper blowing spraying beam and the lower blowing spraying beam and is arranged along the running direction of the strip steel, the upper blowing spraying beam and the lower blowing spraying beam are fixedly connected with the protection stop block, and the high-speed nozzle is arranged between the protection stop blocks.
2. The apparatus of claim 1, wherein the upper and lower purge beams are filled with compressed air.
3. The apparatus of claim 1, wherein the upper and lower purge spray beams are made of stainless steel tubes.
4. The apparatus of claim 1, wherein the upper purge beam is fixed to the thickness gauge protection frame.
5. The apparatus of claim 1, wherein the lower purge beam is fixed to the threading shoe.
6. The apparatus of claim 1, wherein the upper and lower purge spray beams are connected to compressed air pipes.
7. The apparatus of claim 6, wherein the compressed air line is connected to a solenoid valve connected to a PLC rolling mill control system.
8. The apparatus of claim 1, wherein the air curtain formed by the air ejected from the high speed nozzles forms an angle of 60 to 75 degrees with the strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120538114.7U CN214719419U (en) | 2021-03-15 | 2021-03-15 | Device for reducing emulsion residue on surface of strip steel after rolling of 20-roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120538114.7U CN214719419U (en) | 2021-03-15 | 2021-03-15 | Device for reducing emulsion residue on surface of strip steel after rolling of 20-roller mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214719419U true CN214719419U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120538114.7U Active CN214719419U (en) | 2021-03-15 | 2021-03-15 | Device for reducing emulsion residue on surface of strip steel after rolling of 20-roller mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214719419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985490A (en) * | 2022-05-30 | 2022-09-02 | 首钢京唐钢铁联合有限责任公司 | Eighteen-roller cold rolling equipment and control method |
-
2021
- 2021-03-15 CN CN202120538114.7U patent/CN214719419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985490A (en) * | 2022-05-30 | 2022-09-02 | 首钢京唐钢铁联合有限责任公司 | Eighteen-roller cold rolling equipment and control method |
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