Dedusting structure of stokehold scrap iron runner of medium- and small-sized blast furnaces

Abstract

The invention discloses a dedusting structure of a stokehold scrap iron runner of medium- and small-sized blast furnaces. The dedusting structure comprises a blast furnace and a plurality of molten iron tank positions, wherein the blast furnace is connected with a main runner which is connected with a skimmer; the skimmer is connected with a slag runner and a straight runner; each molten iron tank position is respectively connected with the straight runner by virtue of a branch runner; leveling layers are respectively formed on the top of the straight runner and each branch runner; a straight runner seal hood is arranged on the leveling layer on the top of the straight runner; a branch runner seal hood is respectively arranged on the leveling layer on the top of the branch runner; a skimmer seal hood is arranged on the top of the skimmer; the straight runner seal hood and the branch runner seal hood as well as the straight runner seal hood and the skimmer seal hood are respectively sealed by virtue of annular hoop bars; air outlets are formed on the tops of the straight runner seal hood, the branch runner seal hood and the skimmer seal hood, the air outlets are connected with a dedusting system, and inspection doors are formed on the branch runner seal hood in a branch runner work station and the straight runner seal hood in a straight runner work station. The dedusting structure provided by the invention has the advantage that the content of soot which is discharged to atmosphere is reduced.

Description

technical field [0001] The invention relates to a dust removal structure for a slag-iron ditch in front of a small and medium-sized blast furnace. Background technique [0002] The current structure of the slag-iron ditch in front of the blast furnace in the casthouse is as follows: including the blast furnace and a number of molten iron tank positions, the taphole of the blast furnace is connected to the main ditch, the main ditch is connected to the inlet of the skimmer, and the skimmer The overflow port of the skimmer is connected to the slag ditch, the molten iron outlet of the skimmer is connected to the straight ditch, and each molten iron tank position is connected to the straight ditch through a branch ditch, and all the main ditch, straight ditch and branch ditch are in the direction of the molten iron The trend distribution of the flow direction gradually decreases; the sealing cover on each molten iron car tank is equipped with a top suction cover for the tank pos...

AI Technical Summary

Problems solved by technology

The shortcoming of this kind of slag-iron ditch in front of the blast furnace is: since the skimmer, straight ditch and branch ditch are open structures, on the one hand, a large amount of high-temperature smoke and dust generated by the skimmer, straight ditch and branch ditch will be directly discharged into the atmosphere, and then Pollution to the environment. On the other hand, the slag and iron in the skimmer, straight ditch and branch ditch are susceptible to cold adhesion, which greatly increases the difficulty of cleaning

Images