Slag blocking system for steel smelting

Abstract

The invention provides a slag-retaining system for iron and steel smelting, which includes a machine body and a main body of a filter screen, a frame is arranged around the main body of the filter screen, a handle is provided on the frame, an upper filter layer and a lower filter layer of the machine body, and the upper filter layer and the lower filter layer are composed of The interlayers are separated from each other, the upper left corner of the interlayer is provided with a lower drain hole, the middle of the body is provided with a filter screen fixed slideway, the upper right corner of the body is provided with a material inlet, the lower right corner of the body is provided with a discharge port, and the mesh of the upper filter net The shape of the hole is square. Compared with the prior art, the present invention has the following benefits: the reasonable design of the size and shape of the mesh hole of the present invention can completely block the debris distributed in molten steel, and the main body of the filter screen can be removed from the Take it out from the body, clean or replace it, and keep the main body of the filter screen clean. The inner surface and outer surface of the body are each attached with a layer of fireproof and heat-resistant coating, which can increase the service life of the invention. The invention has simple structure, simple operation and convenient cleaning.

Description

technical field [0001] The invention relates to a slag blocking system for iron and steel smelting, which belongs to the technical field of iron and steel smelting. , Background technique [0002] In the prior art, in the iron and steel smelting process, due to the uneven flow of molten steel in the tundish, some places are slow and some places are fast, especially there is an inactive molten steel stagnation zone in the bottom area of ​​the tundish, which makes the inclusions float difficulty. In order to fully and effectively utilize the volume of the tundish and promote the floating of inclusions, people usually set up a slag blocking system in the tundish. The traditional slag blocking system is generally a flat wall, and there is no or only one flow steel hole on the wall. The setting is unreasonable. In the actual use process, the flow direction of molten steel cannot be reasonably distributed, and the flow trajectory of molten steel cannot be effectively improved. I...

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Problems solved by technology

[0002] In the prior art, in the iron and steel smelting process, due to the uneven flow of molten steel in the tundish, some places are slow and some places are fast, especially there is an inactive molten steel stagnation zone in the bottom area of ​​the tundish, which makes the inclusions float difficulty

In order to fully and effectively utilize the volume of the tundish and promote the floating of inclusions, people usually set up a slag blocking system in the tundish. The traditional slag blocking system is generally a flat wall, and there is no or only one flow steel hole on the wall. The setting is unreasonable. In the actual use process, the flow direction of molten steel cannot be reasonably distributed, and the flow trajectory of molten steel cannot be effectively improved. It is easy to cause surface fluctuations caused by turbulent flow diffusion and slag is involved in the molten steel, and some residues are difficult to be cleanly removed. , it is difficult to meet the production demand

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