Method for removing dust by using electric furnace

Abstract

The invention discloses a method for removing dust by using an electric furnace, and belongs to the technical field of dedusting ash recycling in the metallurgical industry. According to the method, the recycled electric furnace dedusting ash is used for replacing a covering agent, the recycled electric furnace dedusting ash is filtered, dried, stored and prepared, when the liquid level of molten steel poured by a bottom pouring steel ingot rises to the elevation of a riser, firstly, carbonized rice husks are put into ingot mould riser molten steel and spread flatly, then prepared electric furnace dedusting ash is directly put into the carbonized rice husks spread flatly on the ingot mould riser molten steel, and the dedusting ash is spread flatly to cover the ingot mould riser end through an iron rake. According to the method, on the premise that the quality of steel ingot products is guaranteed, the electric furnace dedusting ash is used for replacing a covering agent, waste electric furnace dedusting ash generated by enterprises is fully utilized, the production cost can be reduced, and meanwhile smoke pollution can be avoided.

Description

technical field [0001] The invention relates to the technical field of dust removal ash recovery and utilization in the metallurgical industry, in particular to a method for removing dust ash by using an electric furnace, which is used for manufacturers who use an electric arc furnace to smelt molten steel and cast small-tonnage steel ingots. Background technique [0002] Dust removal ash is the dust recovered by the dust removal system from the smoke generated in the electric arc furnace smelting process, and its main component is Fe 2 o 3 ; Dust removal ash belongs to the useless product in the roll factory, and is generally directly treated as waste. [0003] At present, in order to ensure the feeding effect of the riser end after the steel ingot is poured, a covering agent will be added to the riser end of the steel ingot; after the conventional steel ingot covering agent is added, a large amount of smoke and dust and toxic gases will be generated due to combustion and ...

AI Technical Summary

Problems solved by technology

[0003] At present, in order to ensure the feeding effect of the riser end after the steel ingot is poured, a covering agent will be added to the riser end of the steel ingot; after the conventional steel ingot covering agent is added, a large amount of smoke and dust and toxic gases will be generated due to combustion and heat, which will not only pollute the environment, but also cause harm to the staff. There is a serious threat to the health of

[0004] At present, the pressure of environmental pollution in iron and steel enterprises is relatively high, and the dust pollution caused by covering agents used in normal steel ingots is serious, especially for high-efficiency heating agents, which not only pollute the environment, but also increase production costs.