一种中间包浸入水口插入深度的检测装置
By designing a detection device for the insertion depth of the tundish immersion nozzle, the problem of inaccurate measurement of the insertion depth of the tundish immersion nozzle was solved, realizing a fast and convenient measurement method, avoiding production accidents, and improving production stability and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HBIS LAOTING STEEL CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the method for measuring the insertion depth of the tundish immersion nozzle is not accurate enough, which leads to unstable production process control and is prone to accidents such as slag entrapment or steel leakage in the crystallizer.
A device for detecting the insertion depth of the tundish immersion nozzle was designed, including a mounting plate, a detection sleeve, a handle, fastening bolts, and a detection rod. It is fixed by sliding fit and locking bolts, and can accurately measure the insertion depth of the nozzle.
It enables rapid and convenient measurement of the insertion depth of the tundish immersion nozzle, avoiding slag entrapment or steel leakage accidents in the crystallizer caused by incorrect depth, and ensuring the stability of the production process and product quality.
Smart Images

Figure CN224517637U_ABST
Abstract
Claims
1. A device for detecting the insertion depth of a tundish submerged entry nozzle, characterized by: It includes a mounting plate (1), a detection sleeve (2), a handle (3), fastening bolts (4), and a detection rod (5). The mounting plate (1) is a rectangular plate, and the width of the mounting plate (1) matches the width of the sprue slide (10). The mounting plate (1) is placed on the sprue slide (10), and the mounting plate (1) and the sprue slide (10) are in sliding fit. The detection sleeve (2) is placed vertically in the sprue slide (10), and the upper side of the detection sleeve (2) is welded to the outside of the mounting plate (1). A horizontal handle (3) is welded to the detection sleeve (2). The handle (3) is located below the nozzle slide (10) of the test sleeve (2) and away from the nozzle body (8). There is a locking screw hole on the lower part of the tube wall of the test sleeve (2). The fastening bolt (4) is installed in the locking screw hole. The test rod (5) is a long rod. The diameter of the test rod (5) matches the inner diameter of the test sleeve (2). The test rod (5) is inserted into the test sleeve (2). The lower end of the test rod (5) extends out of the test sleeve (2) and is inserted into the molten steel surface (14). The front end of the fastening bolt (4) is tightly connected to the test rod (5).
2. The apparatus for detecting the insertion depth of a tundish submerged entry nozzle according to claim 1, characterized by: A horizontal push rod (6) is welded to the outer wall of the detection sleeve (2). The push rod (6) is located below the sprue slide (10). The rear end of the push rod (6) is vertically welded to the detection sleeve (2). The front end of the push rod (6) is welded to the sprue support plate (7). The sprue support plate (7) is an upright rectangular plate. The plate surface of the sprue support plate (7) has an inclination in the vertical direction and a curvature in the horizontal direction. The inclination and curvature of the plate surface of the sprue support plate (7) match the inclination and curvature of the outer wall of the sprue, respectively. The sprue support plate (7) is pressed against the outer wall of the sprue.