Steel slag thermally stewing device with anti-explosion valve

Abstract

The invention discloses a steel slag thermally stewing device with an anti-explosion valve. The device comprises a slag stewing pit and a horn-shaped slag stewing cover with an aperture gradually increased from top to bottom, wherein a large-aperture gas inlet end of the horn-shaped slag stewing cover hermetically covers the top of the slag stewing pit via water seal mechanisms, and a small-aperture gas outlet end of the horn-shaped slag stewing cover is communicated with a steam pipeline; the anti-explosion valve is installed on the steam pipeline and comprises a pipe-shaped valve body communicated with the steam pipeline; a cover plate capable of covering an upper pipe orifice of the pipe-shaped valve body downwards is hinged on the pipe-shaped valve body; a stop block is installed at the hinge end of the cover plate; when the cover plate is turned upwards, the stop block at the hinge end of the cover plate just pushes against the outer side wall of the pipe-shaped valve body. 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 steel slag heating device with an explosion-proof valve. Background technique [0002] In the steelmaking industry, the steel slag after steelmaking is generally processed by the steel slag heating device. The structure of the currently used steel slag heating device is: including the slag pit, and the slag pit is covered with a slag The cover is provided with an air outlet on the side wall of the stewed slag cover, and the stewed slag pit is connected with the steam pipeline through the air outlet on the side wall of the stewed slag cover. The working principle of this steel slag heating device is as follows: first, the steel slag after steelmaking is stacked 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, thereby The purpose of cooling and pulverizing steel slag is achieved. The disadvantages of this steel slag heating device are: (1)...

AI Technical Summary

Problems solved by technology

The disadvantages of this steel slag heating device are: (1) 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 side wall of the slag cover and steam The pipeline is discharged into the atmosphere, but 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 meet the open fire in the slag pit and cause the pit to explode, which has buried hidden dangers for safe production; (2) The sealing between the slag cover and the slag pit is poor, and high-temperature steam is easy to flow from the slag cover to the slag pit. (3) When the amount of high-temperature steam generated by hot steel slag is too large, the steam pipeline is easily damaged due to excessive instantaneous pressure

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