Purging device for lower step pad of hot-rolled strip rolling mill
By designing the lower step pad purge device of hot-rolled strip rolling mill, high-pressure water is used to remove debris such as iron oxide powder and iron oxide sheet, the problem of debris on the surface of the lower step pad affecting the rolling force, extending the service life of the gasket and improving the stability of the rolling force.
Patent Information
- Application Number
- CN202422428680.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-09
AI Technical Summary
During the hot-rolled strip process, iron oxide powder and iron oxide sheet on the surface of the lower step pad affect the rolling force, resulting in deviations in the rolling force on the operation side and transmission side of the rolling mill, and damage the lower step pad.
A down-step pad purge device for hot-rolled strip rolling mill is designed, and the lower step pad is slidly connected by the transmission side and the operation side, combined with the purge water header and nozzle, and the iron oxide powder and iron oxide sheet are used to remove debris such as iron oxide powder.
Effectively remove debris from the surface of the lower step pad, ensure cleanliness, extend service life, avoid rolling force deviation, and ensure strip rolling quality.
Smart Images
Figure CN223197743U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a lower step pad blowing device for a hot-rolled strip steel rolling mill, belonging to the technical field of hot-rolled strip steel production equipment in the metallurgical industry. Background Art
[0002] The lower step pad is installed on the operating and drive sides of the hot strip mill. Its main function is to adjust the elevation of the operating and drive sides of the rolls, ensure the roll gap value, and avoid deviations in the rolling force on the operating and drive sides of the mill, which could affect the rolling of the strip. However, during the hot strip rolling process, debris such as iron oxide powder and iron oxide scale remaining on the surface of the lower step pad can damage the pad under the action of rolling force, resulting in a large deviation in the rolling force on the operating and drive sides of the mill, affecting production. Utility Model Content
[0003] The purpose of the utility model is to provide a lower step pad blowing device for a hot-rolled strip mill, which can effectively blow away iron oxide powder, iron oxide scale and other debris on the surface of the lower step pad, ensure the cleanliness of the step pad surface, extend the service life of the step pad, avoid deviation in the rolling force between the operating side and the transmission side of the mill, and solve the problems existing in the background technology.
[0004] The technical solution of the utility model is:
[0005] A lower step pad purging device for a hot-rolled strip mill comprises a transmission side lower step pad, an operating side lower step pad, a connecting plate, a transmission side upper cover, an intermediate upper cover, an operating side upper cover, a lower step pad slide, a purging water manifold and a nozzle. The transmission side lower step pad and the operating side lower step pad are respectively slidably connected to the lower step pad slide, and the transmission side lower step pad and the operating side lower step pad are connected together by a connecting plate; the transmission side upper cover, the intermediate upper cover and the operating side upper cover are respectively fixed on the lower step pad slide, and the transmission side upper cover, the intermediate upper cover and the operating side upper cover are respectively provided with a purging water manifold, and the purging water manifolds on the transmission side upper cover, the intermediate upper cover and the operating side upper cover are all provided with a number of nozzles facing the transmission side lower step pad or the operating side lower step pad.
[0006] There is a certain interval between the transmission side upper cover and the middle upper cover, and between the middle upper cover and the operation side upper cover.
[0007] Part of the steps in the lower step pad on the transmission side is exposed between the transmission side upper cover and the middle upper cover; and part of the steps in the lower step pad on the operation side is exposed between the middle upper cover and the operation side upper cover.
[0008] There is one purge water collecting pipe on the transmission side upper cover and the operation side upper cover, and there are two purge water collecting pipes arranged in parallel on the middle upper cover.
[0009] The purge water headers on the transmission side upper cover, the middle upper cover and the operation side upper cover are respectively connected to the water supply pipeline.
[0010] The transmission side lower step pad is driven by a hydraulic cylinder.
[0011] The beneficial effects of the utility model are: it can effectively blow away iron oxide powder, iron oxide scale and other debris on the surface of the lower step pad, ensure the cleanliness of the step pad surface, extend the service life of the step pad, avoid deviation in the rolling force between the operating side and the transmission side of the rolling mill, and affect the rolling of the strip. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the installation of the purge water header of the utility model;
[0014] Figure 3 This is a schematic diagram of the installation structure of the lower step pad of the utility model;
[0015] In the figure: transmission side lower step pad 1, operating side lower step pad 2, connecting plate 3, transmission side upper cover 4, middle upper cover 5, operating side upper cover 6, lower step pad slide 7, water supply pipeline 8, purge water manifold 9, nozzle 10, manifold protective cover 11, hydraulic cylinder 12. DETAILED DESCRIPTION
[0016] The present invention will be further described below with reference to the accompanying drawings and examples.
[0017] Refer to the attached Figure 1-3 , a lower step pad purging device for a hot rolling strip mill comprises a transmission side lower step pad 1, an operating side lower step pad 2, a connecting plate 3, a transmission side upper cover 4, an intermediate upper cover 5, an operating side upper cover 6, a lower step pad slide 7, a purge water manifold 9 and a nozzle 10. The transmission side lower step pad 1 and the operating side lower step pad 2 are respectively slidably connected to the lower step pad slide 7, and the transmission side lower step pad 1 and the operating side lower step pad 2 are connected together by a connecting plate 3; the transmission side upper cover 4, the intermediate upper cover 5 and the operating side upper cover 6 are respectively fixed on the lower step pad slide 7, and a purge water manifold 9 is respectively provided on the transmission side upper cover 4, the intermediate upper cover 5 and the operating side upper cover 6, and the purge water manifold 9 on the transmission side upper cover 4, the intermediate upper cover 5 and the operating side upper cover 6 are all provided with a number of nozzles 10 facing the transmission side lower step pad 1 or the operating side lower step pad 2.
[0018] In this embodiment, refer to the attached Figure 1-3Part of the steps in the transmission side lower step pad 1 are exposed between the transmission side upper cover 4 and the middle upper cover 5, and part of the steps in the operating side lower step pad 2 are exposed between the middle upper cover 5 and the operating side upper cover 6, which are used to install the rollers. The transmission side lower step pad 1 and the operating side lower step pad 2 are driven by the hydraulic cylinder 12 to adjust the roller elevation.
[0019] There are four purge water manifolds 9, which are respectively connected to the water supply pipes 8. There is one purge water manifold 9 on the transmission side upper cover 4 and the operation side upper cover 6, and two purge water manifolds 9 on the middle upper cover 5. The four are arranged in parallel, and 5-6 transverse cuts are evenly opened on each purge water manifold 9 as nozzles 10 to evenly spray the turbid ring high-pressure water onto the surface of the lower step pad, thereby cleaning the debris on the surface of the lower step pad.
Claims
1. A hot strip mill lower step pad blowing device, characterized in that: The invention comprises a transmission side lower step pad (1), an operating side lower step pad (2), a connecting plate (3), a transmission side upper cover (4), an intermediate upper cover (5), an operating side upper cover (6), a lower step pad slide (7), a purge water header (9) and a nozzle (10), wherein the transmission side lower step pad (1) and the operating side lower step pad (2) are respectively slidably connected to the lower step pad slide (7), and the transmission side lower step pad (1) and the operating side lower step pad (2) are connected to each other via a connecting plate (3). Together; the transmission side upper cover (4), the middle upper cover (5) and the operating side upper cover (6) are respectively fixed on the lower step pad slide (7); the transmission side upper cover (4), the middle upper cover (5) and the operating side upper cover (6) are respectively provided with a purge water header (9); the purge water headers (9) on the transmission side upper cover (4), the middle upper cover (5) and the operating side upper cover (6) are each provided with a plurality of nozzles (10) facing the transmission side lower step pad (1) or the operating side lower step pad (2).
2. The hot strip mill lower step pad blowing device according to claim 1, characterized in that: A certain interval is provided between the transmission side upper cover (4) and the middle upper cover (5), and between the middle upper cover (5) and the operation side upper cover (6).
3. The hot strip mill lower step pad blowing device according to claim 2, characterized in that: A portion of the steps in the transmission side lower step pad (1) is exposed between the transmission side upper cover (4) and the middle upper cover (5); and a portion of the steps in the operation side lower step pad (2) is exposed between the middle upper cover (5) and the operation side upper cover (6).
4. The hot strip mill lower step pad blowing device according to claim 1, characterized in that: There is one purge water header (9) on the transmission side upper cover (4) and the operation side upper cover (6), and two purge water headers (9) on the middle upper cover (5) are arranged in parallel.
5. The hot strip mill lower step pad blowing device according to claim 4, characterized in that: The purge water headers (9) on the transmission side upper cover (4), the middle upper cover (5) and the operating side upper cover (6) are respectively connected to the water supply pipeline (8).
6. The hot strip mill lower step pad blowing device according to claim 1, characterized in that: The transmission side lower step pad (1) is driven by a hydraulic cylinder (12).