Follow-up water spraying and scrap removing device used before hot rolling strip steel coiling

Abstract

The utility model relates to a follow-up water spraying and scrap removing device used before hot-rolled strip steel coiling. The follow-up water spraying and scrap removing device comprises a main pipeline, a side water spraying pipeline and a follow-up pipeline. The side water spraying pipeline and the follow-up pipeline are connected into the main pipeline in parallel, a spray head is arranged at the tail end of the side water spraying pipeline, a nozzle of the spray head is aligned to the surface position of a steel plate in front of a guide ruler of the coiling machine, and the tail end of the follow-up pipeline is connected with at least two follow-up spray heads through a hose. Nozzles of the follow-up sprayers are respectively aligned with two side parts of a steel plate in front of a guide ruler of the coiling machine; the device has the advantages that the structure is simple, application is convenient, practicability is high, the problem that scrap iron on the surface of strip steel is pressed in is solved, the surface quality of strip steel products is improved, ordered production of downstream cold rolling is guaranteed, production efficiency is improved, and production cost is reduced. And comprehensive benefits of steel rolling are increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel rolling technology especially relates to a hot-rolled strip steel coiling front follow -up type water -jet scrap removing device. BACKGROUND

[0002] The strip steel product of the hot-rolled strip steel production line is often produced after the coiler, and the foreign matter is pressed into the quality defect on the surface of the steel plate, especially after replacing the wear-resistant lining plate, which is particularly prominent, which not only causes great trouble to the downstream cold rolling production, but also causes great economic loss.

[0003] The method of removing the impurities on the surface of the steel plate in front of the coiler can remove the impurities on the surface of the strip steel to a certain extent, but there is still the phenomenon of iron chips being pressed into the area near the friction between the edge of the strip steel and the lining plate of the guide ruler. The large particle high-temperature iron chips generated by the friction between the edge of the strip steel and the wear-resistant lining plate of the guide ruler are adhered to the surface of the strip steel, and the sweeping equipment cannot completely blow off the wear-resistant lining plate iron chips, which leads to the generation of surface quality defects such as foreign matter being pressed into the strip steel product, and finally leads to the surface quality defects of the steel coil product, resulting in great economic loss.

[0004] The utility model discloses a "hot-rolled coiler front roller blowing device" with the application number CN211386044U, which mainly solves the problem of timely blowing off the iron chips between the roller in front of the coiler and the intermediate guard plate in the hot-rolling production process, avoids the roller jam caused by the iron chip impurities blocking the gap between the intermediate guard plate and the roller, prevents the roller jam from scratching the lower surface of the strip steel, and does not involve the removal of the iron chips and other impurities on the surface of the front end of the coiler pinch roll, and the blowing method cannot remove the iron chips and other impurities adhered to the surface, cannot guarantee the cleanliness of the surface of the hot-rolled strip steel during the coiling process, and cannot avoid the quality defects caused by the foreign matter being pressed into the surface of the strip steel. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a hot-rolled strip steel coiling front follow -up type water -jet scrap removing device, adopts fixed -type nozzle and follow -up nozzle combination, fixed -type nozzle removes the impurities on the surface, follow -up nozzle removes the adhered iron chips generated by the friction between the edge of the strip steel and the lining plate of the guide ruler, solves the problem of the iron chips being pressed into the surface of the strip steel, eliminates the phenomenon of the iron chips being pressed into the area near the friction between the edge of the strip steel and the lining plate of the guide ruler, improves the surface quality of the strip steel product, guarantees the downstream cold rolling production, and increases the comprehensive benefits.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A hot-rolled strip steel before coiling follow-up type water jet cleaning device, including main pipeline, side water jet pipeline and follow-up pipeline, the side water jet pipeline and follow-up pipeline are connected in parallel into the main pipeline, the end of the side water jet pipeline is provided with a spray head, the nozzle of the spray head is aligned with the position of the plate surface in front of the guide ruler of the coiler, the end of the follow-up pipeline is connected with follow-up spray heads through hoses, the follow-up spray heads are at least two, and the nozzles of the follow-up spray heads are respectively aligned with the two side edges of the plate in front of the guide ruler of the coiler, each follow-up spray head is arranged on a spray head support, and the spray head support is arranged on the two side edges of the guide ruler moving trolley push-pull device.

[0008] Further, the side water jet pipeline and the follow-up pipeline are both provided with a manual stop valve.

[0009] Further, the side water jet pipeline and the follow-up pipeline are both provided with an electromagnetic pneumatic control plunger valve.

[0010] Further, the hose connected with each follow-up spray head is connected in parallel into the follow-up pipeline.

[0011] Further, the hose connected with each follow-up spray head is connected in parallel into the follow-up pipeline.

[0012] Compared with the prior art, the hot-rolled strip steel before coiling follow-up type water jet cleaning device has the advantages that:

[0013] The follow-up spray head + fixed spray head structure can effectively remove the quality defects of foreign matters pressed into the surface of the hot-rolled strip steel plate, has the advantages of simple structure, convenient application, strong practicability, good cleaning effect, no influence on the coiling work of the coiler, guarantee of the surface quality of the plate, guarantee of the orderly production of the downstream cold rolling and increase of the comprehensive benefits of the steel rolling.

[0014] The follow-up spray head can blow away the adhered iron scraps generated by the friction between the edge of the strip steel and the guide ruler wear-resistant lining plate, solve the problem of the iron scraps pressed into the surface of the strip steel, eliminate the phenomenon of the iron scraps pressed into the area near the friction between the edge of the strip steel and the guide ruler lining plate, make up the defects of the insufficient blowing of the iron scraps in the steel rolling, improve the surface quality of the strip steel product and increase the economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The hot-rolled strip steel before coiling follow-up type water jet cleaning device is shown in the schematic view.

[0016] In the drawing: 1. main pipeline; 2. side water jet pipeline; 3. follow-up pipeline; 4. spray head; 5. follow-up spray head; 6. hose; 7. manual stop valve; 8. electromagnetic pneumatic control plunger valve. DETAILED DESCRIPTION

[0017] The specific implementation manner of the hot-rolled strip steel before coiling follow-up type water jet cleaning device will be further explained as follows:

[0018] In the description of the present patent, it is to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0019] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0020] As Figure 1 shown, the working principle of a hot-rolled strip steel coiling front follow-up water jet cleaning device: the main pipeline 1 provides water for the side water jet pipeline 2 and the follow-up pipeline 3, the nozzle 4 at the end of the side water jet pipeline 2 is fixed, the nozzle is directly opposite to the surface of the strip steel in front of the roll gauge before the push-pull device of the roll gauge moving trolley, the nozzle 4 of the side water jet pipeline 2 cleans the impurities such as iron filings on the surface of the strip steel; the follow-up nozzle 5 on the follow-up pipeline 3 is arranged on the push-pull device of the roll gauge moving trolley, and follows the movement of the roll gauge. The adherent impurities such as iron filings generated by the friction between the strip steel edge and the wear-resistant lining plate of the roll gauge during the process of the roll gauge guiding the strip steel into the pinch roll are cleaned by the follow-up nozzle 5. The combination of the nozzle 4 of the side water jet pipeline 2 and the follow-up nozzle 5 can ensure that all impurities and iron filings on the surface of the strip steel are cleaned, solve the problem of impurities being pressed into the surface of the hot-rolled strip steel, improve the quality of the surface of the hot-rolled strip steel, and ensure the orderly production of the downstream cold rolling, thereby increasing the comprehensive benefits of steel rolling.

[0021] As Figure 1As shown, a hot-rolled strip steel before coiling follow-up type water jet descaling device, including main pipeline 1, side water spray pipeline 2 and follow-up pipeline 3, the side water spray pipeline 2 and follow-up pipeline 3 are connected in parallel into the main pipeline 1, the main pipeline 1, side water spray pipeline 2 and follow-up pipeline 3 are made of stainless steel pipe, the end of the side water spray pipeline 2 is provided with a spray head 4, the nozzle of the spray head 4 is aligned with the front plate surface position of the coiler pinch roll guide ruler, the end of the follow-up pipeline 3 is connected with a follow-up spray head 5 through a hose 6, the follow-up spray head 5 is provided with at least two, the nozzles of the follow-up spray head 5 are respectively aligned with the two side edge portions of the steel plate in front of the coiler pinch roll guide ruler, when the coiler guide ruler clamps the steel plate, the follow-up spray head 5 moves with the guide ruler, can always align with the edge area of the strip steel, the high-pressure water flow sprayed by the follow-up spray head 5 of the follow-up pipeline 3 can accurately blow all the edge area of the product strip steel, each follow-up spray head 5 is respectively arranged on a spray head support, the spray head support is arranged on the two side edge portions of the mill guide ruler moving trolley push-pull device, the guide ruler moving trolley push-pull device moves the spray head support at the same time, the follow-up spray head 5 installed on the spray head support moves with the guide ruler.

[0022] Further, the side water spray pipeline 2 and the follow-up pipeline 3 are provided with a manual stop valve 7, which can be manually and quickly closed when a fault state or the water spray on both sides of the edge is stopped, without affecting the separate use of the side water spray pipeline 2 of the coiler descaling device.

[0023] Further, the side water spray pipeline 2 and the follow-up pipeline 3 are provided with an electromagnetic pneumatic control plunger valve 8, which is controlled by an electromagnetic pneumatic automatic program, and the side water spray pipeline 2 and the follow-up pipeline 3 share the automatic control program.

[0024] Further, the hose 6 is a steel woven rubber hose, which can stretch and contract with the guide ruler, is strong in rigidity and is not easy to be damaged, and is suitable for most rolling environments.

[0025] Further, the hose 6 connected with each follow-up spray head 5 is connected in parallel into the follow-up pipeline 3.

[0026] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A follow-up water jet cleaning device for hot-rolled strip steel before coiling, comprising a main pipe line, a side water jet pipe line and a follow-up pipe line; characterized in that, The side water spraying pipeline and the follow-up pipeline are connected in parallel to the main pipeline, the end of the side water spraying pipeline is provided with a spray head, the nozzle of the spray head is aligned with the position of the steel plate in front of the guide ruler of the coiler, the end of the follow-up pipeline is connected with a follow-up spray head through a hose, the follow-up spray head is provided with at least two, and the nozzles of the follow-up spray heads are respectively aligned with the two side edges of the steel plate in front of the guide ruler of the coiler; each follow-up spray head is arranged on a spray head support, and the spray head support is arranged on the two side edges of the push-pull device of the guide ruler moving trolley.

2. The follow-up water jet descaling device before the hot strip rolling is coiled according to claim 1, characterized in that, Manual stop valves are arranged on the side water spraying pipeline and the follow-up pipeline.

3. The follow-up water jet descaling device before the hot strip rolling is coiled according to claim 1, characterized in that, Electromagnetic pneumatic control plunger valves are arranged on the side water spraying pipeline and the follow-up pipeline.

4. The follow-up water jet descaling device before the hot strip rolling is coiled according to claim 1, characterized in that, The hose is a steel wire rubber hose.

5. The follow-up water jet device for removing scale before coiling of a hot-rolled strip according to claim 1, wherein The hose connected with each follow-up spray head is connected in parallel to the follow-up pipeline.

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