Water beam stand column plug of steel rolling heating furnace
By designing a water beam column plug structure including seamless steel parts, seamless steel pipe fittings, steel plate parts, flange parts and flange end covers, the water leakage problem of water beam column plug plate of rolled steel heating furnace is solved, and rapid sealing is achieved, reducing production shutdown time and cost.
Patent Information
- Application Number
- CN202422358660.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, the water leakage phenomenon in the blocking position of the water beam column of the steel rolling furnace can only be repaired after cooling, resulting in a long production shutdown time and a great impact.
A water beam column plug structure including seamless steel parts, seamless steel pipe fittings, steel plate parts, flange parts and flange end caps is designed to quickly seal the leaking position through full welding connection, and a combined seal between curved plate parts and flange end caps is simplified.
It shortens maintenance time and reduces the impact on production, with a simple structure and low cost.
Smart Images
Figure CN223121914U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of the design of the plug for the water beam column, in particular to a plug for the water beam column of a rolling mill heating furnace. Background Art
[0002] The water beam columns of a rolling mill heating furnace are used to support the slab in the furnace to complete the stepping cycle. Since the temperature in the heating furnace is relatively high, cooling water needs to be introduced into the water beam columns to maintain their structural strength. The cooling medium in the water beam columns is 1.6 MPa saturated steam water. There is an end plug plate at the bottom of each water beam column. The main function of this end plug plate is to clean the water slag and scale in the water beam column during the shutdown and maintenance of the heating furnace. However, the reduced-diameter pipeline of the end plug plate is prone to corrosion, perforation, air leakage and water leakage. At the same time, the flange seal of the plug plate is also prone to air leakage and water leakage during the daily production process.
[0003] When the phenomenon of air leakage and water leakage occurs, if it is not blocked in time, the phenomenon of air leakage and water leakage may expand, ultimately leading to the shutdown of the heating furnace, which has a serious impact on production. However, it is relatively difficult to block the position of air leakage and water leakage. First, the pressure inside the water beam column is relatively high. Since the furnace cannot be shut down for cooling, even if it operates at reduced pressure, there is still a relatively high pressure, and it is impossible to directly weld and repair the leakage. Therefore, the leakage at the plug plate position of the column can only be repaired by stopping the water supply of the water beam column after the furnace is shut down and cooled. However, this solution takes a relatively long time, generally 4 days, which has a greater impact on production. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is that the leakage at the plug plate position of the column can only be repaired by stopping the water supply of the water beam column after the furnace is shut down and cooled. However, this solution takes a relatively long time, generally 4 days, which has a greater impact on production.
[0005] To solve the above problems, the following technical solutions are adopted in the utility model: The utility model is a plug for the water beam column of a rolling mill heating furnace, including a seamless steel part, a seamless steel pipe part, a steel plate part, a flange part, a flange end cover and an arc plate part. The seamless steel part is welded to the end of the water beam column. The seamless steel pipe part is welded to the seamless steel part. The steel plate part is welded to the bottom of the seamless steel part. The flange part is welded to the seamless steel pipe part. The flange end cover is installed on the flange part by bolts with a gasket. The arc plate part is welded to the seamless steel part and the end of the water beam column.
[0006] Further, the seamless steel part and the arc plate part enclose a circular structure.
[0007] Further, all the welded connections between the components are full-weld connections.
[0008] The beneficial effects obtained by the utility model with the above structure are as follows:
[0009] 1. The maintenance time is greatly shortened, minimizing the impact on production.
[0010] 2. Simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of a plug for the water beam column of a rolling mill heating furnace proposed by the present utility model;
[0012] Figure 2 It is a top view of a plug for the water beam column of a rolling mill heating furnace proposed by the present utility model;
[0013] Figure 3 It is a schematic diagram of the installation steps of a plug for the water beam column of a rolling mill heating furnace proposed by the present utility model.
[0014] Among them, 1. seamless steel part, 2. seamless steel pipe part, 3. steel plate part, 4. flange part, 5. flange end cover, 6. arc plate part. DETAILED DESCRIPTION OF THE INVENTION
[0015] As shown in the attached specification Figures 1 to 3 The present utility model is a plug for the water beam column of a rolling mill heating furnace, including a seamless steel part 1, a seamless steel pipe part 2, a steel plate part 3, a flange part 4, a flange end cover 5 and an arc plate part 6. The seamless steel part 1 is welded to the end of the water beam column. The seamless steel pipe part 2 is welded to the seamless steel part 1. The steel plate part 3 is welded to the bottom of the seamless steel part 1. The flange part 4 is welded to the seamless steel pipe part 2. The flange end cover 5 is installed on the flange part 4 using bolts and gaskets. The arc plate part 6 is welded to the seamless steel part 1 and the end of the water beam column.
[0016] During specific use: When it is found that the reducer pipe or the plug plate at the end of the water beam column has steam-water leakage, the heating furnace stops charging, the walking beam stops running, and the vaporization system operates at reduced pressure. First, the plug is put on the end of the column. The seamless steel part 1 is fully welded to the end of the water beam column. The arc plate part 6 is not installed first. The steam-water leaking from the water beam column is discharged through the seamless steel pipe part 2. After welding the seamless steel part 1, the arc plate part 6 is installed. The seamless steel part 1, the arc plate part 6 and the end of the water beam column are all fully welded. After welding, the flange end cover 5 is installed, and the flange 4 and the flange end cover 5 are connected and fastened using bolts and gaskets.
[0017] It should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A plug for the water beam column of a steel rolling heating furnace, characterized in that: It includes seamless steel parts, seamless steel pipe parts, steel plate parts, flange parts, flange end covers and arc-shaped plate parts. The seamless steel parts are welded to the end of the water beam column, the seamless steel pipe parts are welded to the seamless steel parts, the steel plate parts are welded to the bottom of the seamless steel parts, the flange parts are welded to the seamless steel pipe parts, the flange end covers are installed on the flange parts using bolts with gaskets, and the arc-shaped plate parts are welded to the seamless steel parts and the end of the water beam column.
2. A plug for the water beam column of a rolling mill reheating furnace according to claim 1, characterized in that: The seamless steel parts and the arc-shaped plate parts enclose a circular structure.
3. A plug for the water beam column of a rolling mill heating furnace according to claim 1, characterized in that: All welded connections between components are full penetration welds.