Self-sinking filter residue device of slag extractor

Abstract

The invention provides a self-sinking type slag filtering device of a slag conveyor. The self-sinking type slag filtering device mainly comprises a bottom plate (1), a front end plate and a rear end plate (3), wherein the front end plate and the rear end plate (3) are fixedly connected to the front end and the rear end of the bottom plate (1) respectively. The self-sinking type slag filtering device further comprises a grid located above the bottom plate (1) and between the front end plate and the rear end plate (3). The grid comprises a grid support (8) and a plurality of vertical strips (4). The vertical strips (4) are independently and movably installed in positioning grooves of the grid support (8). The side faces of the vertical strips (4) are coated with a fireproof and slag bonding preventing coating. By means of the device for slag filtering, molten iron can be filtered through gaps of the grid, the slag filtering efficiency is high, and the effect is good. Meanwhile, after the lower ends of the vertical strips (4) are molten, the vertical strips (4) can automatically sink under the effect of gravity and impact vibration, and it is ensured that the bottoms of the vertical strips (4) make contact with the bottom plate (1) all the time. The slag filtering effect is stable, and reliability is high. The slag filtering device does not need to be frequently replaced, and the maintaining workload is small.

Description

technical field [0001] The invention relates to a slag filter device of a slag extractor, belonging to the field of metallurgical equipment. It is mainly used for slag removal of molten iron in iron and steel enterprises, and can also be used for other solid-liquid separation operations of horizontal filtration. Background technique [0002] The function of the molten iron slag extractor is mainly to remove the scum in the molten iron and realize the solid-liquid separation of the scum and the molten iron. The slag removal methods in the prior art include: (1) using steel plates or steel castings without holes as the slag removal rake, the disadvantage is that the slag and iron cannot be separated in time and effectively, and part of the residue will flow away with the molten iron; (2) ) using a slag rake with holes, although the separation of slag and iron can be achieved in the early stage of use, but due to the erosion of high-temperature molten iron, the holes expand ra...

AI Technical Summary

Problems solved by technology

The slag removal methods in the prior art include: (1) using steel plates or steel castings without holes as the slag removal rake, the disadvantage is that the slag and iron cannot be separated in time and effectively, and part of the residue will flow away with the molten iron; (2) ) using a slag rake with holes, although the separation of slag and iron can be achieved in the early stage of use, but due to the erosion of high-temperature molten iron, the holes expand rapidly and cause slag leakage, or are blocked by slag and lose their effect; (3) replaceable filter As a filter device, the screen also has the problem of hole expansion and blockage. After a period of use, the filter screen needs to be replaced, resulting in increased maintenance workload and increased costs.

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