Universal spiral air inlet type molten pool smelting furnace

Abstract

The invention discloses a universal spiral air inlet type molten pool smelting furnace and aims to overcome the defects that an existing smelting furnace is poor in air inlet effect, short in furnace body slag removal period and high in production cost. An air inlet assembly is installed on the lower portion of the furnace body, and a material adding opening is formed in the upper portion of the furnace body. The air inlet assembly comprises an air inlet main pipe and a plurality of air inlet branch pipes installed between the air inlet main pipe and the furnace body, one ends of the air inlet branch pipes are installed on the furnace body in a universal rotating mode, the other ends of the air inlet branch pipes are installed on the air inlet main pipe in a universal rotating mode, and the air inlet main pipe moves to drive the air inlet branch pipes to swing so as to adjust the air inlet angles of the air inlet branch pipes into the furnace body. The air inlet branch pipe obliquely feeds air into the furnace body, so that spiral airflow is generated in the furnace body; a flue gas pipe and a dust pipe are respectively connected above and below the feeding port on the furnace body, the flue gas pipe is connected with an air suction pipe, and a dust removal unit is connected between the dust pipe and the air suction pipe. According to the universal spiral air inlet type molten pool smelting furnace, the cleaning period of the molten pool smelting furnace is greatly prolonged, and cost reduction is facilitated.

Description

technical field [0001] The invention relates to a smelting technology, more particularly, to a universal screw-inlet type molten pool smelting furnace. Background technique [0002] Molten pool smelting is a smelting method in which the charge is directly added to the blasted molten pool to quickly complete the main reactions between gas, liquid and solid phases. This enhanced smelting metallurgical method is suitable for metallurgical processes such as melting, sulfidation, oxidation, reduction, matte making and fuming of non-ferrous metal raw materials. The molten pool melting furnace needs to be cleaned after being used for a period of time, and its cleaning cycle directly affects the production cost and efficiency. Many molten pool melting furnaces currently used have short cleaning cycles and high frequency, which greatly increases the cost and reduces the production efficiency. Moreover, during the feeding process of the molten pool furnace, aeration is prone to occur...

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Problems solved by technology

[0003] In order to overcome the above disadvantages, the present invention provides a universal spiral air-intake melting pool melting furnace, which greatly prolongs the cleaning cycle of the melting pool melting furnace, which is beneficial to reduce costs and improve work efficiency, and is not prone to aeration during the feeding process The phenomenon of aeration avoids the damage to the furnace body caused by aeration, and the exhausted flue gas will not be mixed with dust to pollute the environment

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