Hearth purging system

Abstract

The invention discloses a hearth purging system which comprises a smelting furnace, a heat insulation cavity in the top of the smelting furnace and a purging mechanism in the heat insulation cavity, the purging mechanism comprises a lifting mechanism at the top end, and the top end of the lifting mechanism is fixedly connected with the inner top surface of the heat insulation cavity; the output end of the lifting mechanism is arranged downwards and fixedly connected with a forward and reverse rotation motor, and an output shaft of the forward and reverse rotation motor is sleeved with an upperlimiting ring and a lower limiting ring and divided into a threaded shaft and a smooth shaft through the lower limiting ring. The threaded shaft is sleeved with a nut seat, the nut seat is fixedly sleeved with a lifting disc, and hinge seats are distributed on the outer edge ring of the lifting disc at equal intervals; the smooth shaft is fixedly sleeved with a turntable, and lower hinge seats are equidistantly distributed on the outer edge ring of the turntable; a rotating rod of each lower hinge seat is provided with a nozzle, and the output end of each nozzle is flexibly connected with theturntable; the top surface of each nozzle is hinged with a connecting rod and connected with a rotating rod of the upper hinge seat through the connecting rod; the purging range of the nozzle is widened, purging of a hearth is more thorough, and the safety of the smelting furnace is guaranteed.

Description

technical field [0001] The invention relates to a smelting furnace, in particular to a furnace purging system. Background technique [0002] The melting furnace refers to the equipment that melts metal ingots and some scrap metals and adds necessary alloy components, and smelts them into the required alloys through operations such as slag removal and refining. The flue gas in the furnace passes through the regenerative burner and becomes low-temperature flue gas, which enters the dust removal equipment for treatment and discharge. When the furnace door is opened, the flue control valve and the flue fan are opened, and the flue gas released from the furnace mouth enters the dust removal equipment through the dust collection hood, exhaust pipe and low-temperature flue gas for treatment. [0003] After the smelting is over, a large amount of smelting residual gas powder will be formed, and the residual gas powder will adhere to the furnace. If it is not cleaned, it will affect...

AI Technical Summary

Problems solved by technology

[0003] After the smelting is over, a large amount of smelting residual gas powder will be formed, and the residual gas powder will adhere to the furnace. If it is not cleaned, it will affect the next smelting

[0004] In the existing furnace cleaning, most of the fans directly blow the inside of the furnace, but it is difficult to sweep the area inside the furnace that is difficult for the fan outlet to reach, the sweeping range is small, the efficiency is low, and it affects the safety of the melting furnace furnace

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