Smelting furnace

Abstract

The invention provides a smelting furnace. The furnace comprises a furnace body and a plurality of spray guns, wherein a cavity with an open upper end is defined in the furnace body, the cavity is provided with a small-diameter area and a large-diameter area located above the small-diameter area, the inner diameter of the large-diameter area is larger than the inner diameter of the small-diameterarea, a discharge port and a plurality of spray gun ports are formed in the small-diameter area, and the plurality of spray gun ports are distributed at intervals along the circular cross section of the small-diameter area; and the spray guns are inserted into the spray gun ports, the plurality of spray guns deviate from the circle center of the circular cross section of the furnace body at the same angle in the same direction, the spray guns are arranged obliquely downwards relative to the horizontal direction, and the included angle between connection lines of the spray-blowing ends of the spray guns and the circle center of the circular cross section of the small-diameter area and the spray-blowing direction of the spray guns is 15 degrees. The smelting furnace has the advantages of lowenergy consumption, good smelting effect, and further being capable of reducing emission of harmful gas and avoiding environment pollution.

Description

technical field [0001] The invention relates to the technical field of casting equipment, in particular to a melting furnace. Background technique [0002] Casting is a kind of metal thermal processing technology mastered by human beings earlier, with a history of about 6,000 years. China has entered the heyday of bronze castings between 1700 BC and 1000 BC, and the craftsmanship has reached a very high level. Casting is a method in which liquid metal is poured into a casting cavity adapted to the shape of the part, and after it is cooled and solidified, the part or blank is obtained. The material to be cast is mostly a metal that was originally solid but heated to a liquid state (eg copper, iron, aluminum, tin, lead, etc.), and the material of the mold can be sand, metal or even ceramics. Depending on the requirements, the methods used will vary. [0003] A relatively common problem in molten pool smelting metallurgical furnaces in the related art is that the materials f...

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Problems solved by technology

[0004] In order to overcome the problems of high energy consumption and low smelting efficiency in the prior art, the present invention provides a smelting furnace

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