Uniform air-distributing cupola furnace

Abstract

The invention belongs to the technical field of fusing smelting, in particular to a uniform air-distributing cupola furnace. In order to overcome the defect that in an existing cupola furnace, tuyeresare not reasonably designed, and the temperature in the hearth is hardly distributed uniformly and reasonably regardless of large tuyeres or small tuyeres, the technical scheme is as follows: the uniform air-distributing cupola furnace comprises a furnace body, wherein the tuyeres which are cone-shaped are arranged on the furnace body, and the air inlet of the diffuser is larger than the air outlet; the tuyeres arranged in multiple rows are arranged on the furnace body in a surrounding manner, and the setting directions of the tuyeres are inclined downward; the tuyeres comprise three specifications: a first tuyere, a second tuyere and a third tuyere, the first, second and third tuyeres are separately arranged in three rows, are arranged from top to bottom, and are arranged in a staggeredmanner. The inclining angles of the tuyeres and the specifications of the tuyeres can be also adjusted. A circular water cooling system is arranged. The uniform air-distributing cupola furnace provided by the invention is suitable for high-temperature casting.

Description

technical field [0001] The invention belongs to the technical field of melting and smelting, and in particular relates to a cupola with uniform air distribution. Background technique [0002] The cupola is an important equipment for melting cast iron or producing cast stone materials in foundry production. The cupola structure mainly includes a furnace top part, a furnace body part, a support part and a forehearth, wherein the furnace body part is provided with tuyeres. The way the tuyere is set determines the combustion status of the bottom coke in the cupola, thereby determining the melting and heating status of the molten iron. [0003] When a large tuyere is selected, the speed of air entering the furnace from the tuyere is relatively slow. In this case, the air is evenly distributed around the furnace, but it is difficult to penetrate into the center of the furnace. As a result, the bottom coke burns unevenly and the center temperature is low. The surrounding temperat...

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Problems solved by technology

[0005] In view of the defect that the design of the tuyere is unreasonable in the above-mentioned existing cupola, no matter whether a large tuyere or a small tuyere is selected, it is difficult to make the temperature distribution in the furnace uniform and reasonable. The purpose of the present invention is to provide a cupola with uniform air distribution. By adopting conical tuyeres and adopting reasonable azimuth settings, the distribution of air in the furnace is improved, and the effect of uniform combustion temperature in the furnace is achieved.

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