Fixing device and method of steel billet in stuffy slag pit

Abstract

The invention provides a fixing device and method of a steel billet in a stuffy slag pit and relates to the technical field of steel slag treatment. The steel billet fixing device is formed by piling steel billet fixing units up, each steel billet fixing unit is composed of four steel billet single bodies in an inserted mode, and an inserted groove is formed in each steel billet single body; and the widths of the inserted grooves are the same with the thicknesses of the steel billet single bodies. The fixing device is simple in structure and convenient to machine and install; the steel billet fixing units cancel design of fastening bolts in the prior art, the smooth degree and no slag hanging on the inner walls of the steel billet fixing units are guaranteed, the steel billet single bodies are connected in an inserted mode, and the connecting strength among the steel billet single bodies is guaranteed. The groove widths are same with the thicknesses of the steel billet single bodies, and thus reliability of inserting can be reinforced; meanwhile, the steel billet is a waste material which is common in a steel mill, material drawing is convenient, and the steel billet is used for manufacturing the steel billet fixing device so that manufacturing cost can be greatly reduced; and the device is durable in service, so that maintenance cost is effectively reduced, and the good practicability and economic benefits are achieved.

Description

technical field [0001] The invention provides a slag pit billet fixing device and a fixing method, which relate to the field of steel slag treatment technology. Background technique [0002] In the field of steel slag treatment, the boring slag treatment process is widely used due to its strong applicability and wide range of destinations for finished slag. The billet is in direct contact with the red slag during use, and the high-temperature steam generated in the stuffy slag causes high-temperature corrosion, which causes the billet on the inner wall to often fall off, and the billet and fastening bolts are thermally deformed, or occur during repeated thermal expansion and contraction. Fracture will affect the service life of the slag pit. [0003] When repairing, because the steel billet is located 4-5m underground and has a large weight, and there is no suitable foothold underground, large-scale machinery such as excavators are often used for excavation, and it usually ...

AI Technical Summary

Problems solved by technology

[0002] In the field of steel slag treatment, the boring slag treatment process is widely used due to its strong applicability and wide range of destinations for finished slag. The billet is in direct contact with the red slag during use, and the high-temperature steam generated in the stuffy slag causes high-temperature corrosion, which causes the billet on the inner wall to often fall off, and the billet and fastening bolts are thermally deformed, or occur during repeated thermal expansion and contraction. Fracture, affecting the service life of the slag pit

[0003] When repairing, because the steel billet is located 4-5m underground and has a large weight, and there is no suitable foothold underground, large-scale machinery such as excavators are often used for excavation, and it usually takes about a week to complete the repair. Greatly affected the progress of the project, and the existing steel billets fixed by fastening bolts need to be customized, the cost is high, and the failure rate is high, which increases the construction cost

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