Round-table-type dense rib hot-blast furnace

Abstract

The invention discloses a round-table-type dense rib hot-blast furnace which comprises a furnace body composed of an upper round table and a lower round table; the lower part of the furnace body is provided with an air blower pipeline; the middle part of the furnace body is provided with a left material feed gate and a right material feed gate which are respectively communicated with a respective cupola furnace; the upper part of the furnace body is provided with a left air pipe and a right air pipe; the left air pipe is provided with a left valve and is communicated with the left cupola furnace; and the right air pipe is provided with a right valve and is communicated with the right cupola furnace. According to the invention, furnace gas and air entering from a charging opening are mixed and ignited, heat released from the ignition is used for heating cold air blown by the air blower, and heated hot air is introduced into a hearth of each cupola furnace, so that energy sources are saved, meanwhile, the quality of a cast product can be ensured, and the round-table-type dense rib hot-blast furnace has high popularization value.

Description

technical field [0001] The invention relates to the technical field of cupola hot blast system, in particular to a round table type dense rib hot blast stove. Background technique [0002] At present, the cupolas used in foundries (workshops) in my country generally do not use hot air, but cold air, and the temperature of the molten iron obtained is not high. Some manufacturers use hot blast stoves, which are installed at the lower end of the cupola charging port, and some are installed at the upper end of the charging port. Improper use will heat and deform the cupola furnace, causing hanging materials, or even burning through and leaking air. Cupolas in developed countries use an external heating air system, which is expensive and wastes energy, so it is not suitable for domestic promotion. Contents of the invention [0003] In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provide a round table-type dense-reinf...

AI Technical Summary

Problems solved by technology

[0002] At present, the cupolas used in foundries (workshops) in my country generally do not use hot air, but cold air, and the temperature of molten iron obtained is not high.

Some manufacturers use hot blast stoves, which are installed at the lower end of the cupola charging port, and some are installed at the upper end of the charging port. Improper use will heat and deform the cupola furnace, causing hanging materials, or even burning through and leaking air.

Cupolas in developed countries use an external heating air system, which is expensive and wastes energy, so it is not suitable for domestic promotion

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