A slag stewing device for hot stewing steel slag

Abstract

The invention discloses a slag stewing device used for thermally stewing steel slag. The device comprises a slag stewing pit and a horn-shaped slag stewing cover with an aperture gradually increased from top to bottom, wherein the top of the slag stewing pit is covered by a large-aperture gas inlet end of the horn-shaped slag stewing cover; a small-aperture gas outlet end of the horn-shaped slag stewing cover is communicated with a steam pipeline; water storage tanks with water on the periphery are arranged around the slag stewing pit; a plurality of cushion blocks immersed in the water are installed in the water storage tanks at intervals; a circle of convex ring integrally extends downwards from each edge of the large-aperture gas inlet end of the horn-shaped slag stewing cover; when the horn-shaped slag stewing cover is used for covering the slag stewing pit downwards, the convex rings of the horn-shaped slag stewing cover just push against the cushion blocks in the water storage tanks downwards; water fenders are also arranged around the slag stewing pit. The device has the advantages of good sealability, capability of effectively preventing the phenomenon of pit explosion during slag stewing, and high safety in use.

Description

technical field [0001] The invention relates to a slag stewing device for hot stewing steel slag. Background technique [0002] In the steelmaking industry, the steel slag after steelmaking is generally processed through a slag stewing device. The structure of the currently used slag stewing device is: a stewing slag pit is covered with a stewing slag cover. An air outlet is provided on the side wall of the stewed slag cover, and the stewed slag pit is communicated with the steam pipeline through the air outlet on the side wall of the stewed slag cover. The working principle of this kind of slag stewing device is: first, the steel slag after steelmaking is piled up in the slag pit, and then the slag cover is buckled on the top of the slag pit, and then water is periodically pumped into the slag pit, so as to achieve The purpose of cooling and pulverizing steel slag. The disadvantages of this slag stewing device are: on the one hand, since the steel slag will emit a large a...

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Problems solved by technology

The disadvantages of this slag stewing device are: on the one hand, since the steel slag emits a large amount of high-temperature steam containing hydrogen and other flammable and explosive gases during the cooling process, most of these steam will pass through the gas outlet on the side wall of the slag slag cover and the steam pipe. However, due to the low density of flammable and explosive gases such as hydrogen, these flammable and explosive gases such as hydrogen will rise and gather at the bottom of the slag cover. When these flammable and explosive gases are enriched to a certain concentration, It is very easy to encounter an open flame in the slag pit and cause the pit to explode, which has buried hidden dangers for safe production; on the other hand, the sealing between the slag cover and the slag pit is poor, and high-temperature steam is easy to flow Dissipate out of the gap between and scald the operator

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