Anti-perforation type tundish dam wall

By introducing flow guiding and anchoring structures into the slag retaining wall of the tundish, the flow direction of molten steel is changed and the bonding strength is enhanced, thus solving the problem of eddy current erosion, extending the service life of the slag retaining wall, and improving the purity of molten steel.

CN224543122UActive Publication Date: 2026-07-24SHANGHAI LIER REFRACTORY MATERIAL +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI LIER REFRACTORY MATERIAL
Filing Date
2025-08-19
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional slag retaining walls develop perforations due to eddy currents when molten steel flows, leading to accelerated erosion at the joints, which affects service life and increases maintenance costs. Existing technologies have failed to effectively solve the problem of eddy current energy accumulation.

Method used

The tundish retaining wall designed to prevent puncture employs a flow guiding structure and an anchoring structure. It changes the direction of molten steel flow through a convex ridge, a flow guiding slope, and an arc-shaped channel to form a stable vortex. It is also secured to the working layer with anchor plates to enhance the bonding strength.

Benefits of technology

It effectively avoids the direct impact of eddies on the joint, improves the bonding strength between the slag retaining wall and the working layer, extends the service life, improves the purity of molten steel and the flotation efficiency of inclusions, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224543122U_ABST
    Figure CN224543122U_ABST
Patent Text Reader

Abstract

This utility model discloses a perforation-resistant tundish slag-blocking wall, relating to the field of tundish refractory material technology. It includes a tundish body, with first working layers on both sides of the interior and a second working layer on the bottom side of the interior. A slag-blocking wall is fixed between the first and second working layers. A flow-guiding structure is provided at the connection between the slag-blocking wall and the first working layers on both sides. The flow-guiding structure includes a turning ridge, a flow-guiding slope, and an arc-shaped channel. The turning ridge is located on the left side of the slag-blocking wall, serving as the flow-facing end of the flow-guiding structure. The flow-guiding slope is located at the rear end of the turning ridge. The arc-shaped channel is located on the right side of the turning ridge, and an arc-shaped cavity is formed within the arc-shaped channel. An anchoring structure for securing the flow-guiding structure is provided at the connection between the flow-guiding structure and the first working layer. This utility model has a reasonable design, can actively resist eddy current erosion of molten steel, strengthens the interface structure between the slag-blocking wall and the working layers, and improves the service life of the slag-blocking wall.
Need to check novelty before this filing date? Find Prior Art