Material guiding device, cupola furnace body, and cupola furnace body provided with material guiding device

Abstract

The invention discloses a cupola furnace body provided with a material guiding device, which comprises two parts: the cupola furnace body and the material guiding device. The cupola furnace body is a lateral charging type furnace body and comprises a furnace bottom part, a furnace cylinder part, a furnace body part and a chimney part sequentially from the bottom up. The charging opening of the furnace body is located at the lower part of the chimney part, and has a height of 400mm to 1500mm and a width equal to 80% to 100% the inner diameter of a hearth body of the furnace body. The material guiding device comprises a supporting structure piece and a material guiding structure piece, the material guiding structure piece comprises a material guiding groove opened upwards and rearwards and fixedly connected to the supporting structure piece, so that the material guiding groove is overall arranged in an inclined way higher at the front part and lower at the rear part. A sealing structure is formed between the material guiding groove of the material guiding device and the charging opening of the furnace body on the left side, the lower side, and the right side; and material in a hopper can be introduced into the furnace body through the material guiding groove from the outside.

Description

technical field [0001] The invention relates to the field of manufacture of cupolas, in particular to a furnace body of a cupola and corresponding auxiliary devices. Background technique [0002] Cast iron melting is one of the important links to obtain high-quality castings. Cast iron melting equipment includes mixing furnace, three-section furnace, electric furnace (electric arc furnace or induction furnace), cupola and so on. Among them, the cupola furnace is the most widely used, and the total output of cast iron parts exceeds 90%. This is because the cupola melting is characterized by simple equipment, convenient operation, high production efficiency, continuous production, and low cost. Although the temperature and composition control of the cupola furnace is not as easy as that of the electric furnace, it can basically meet the production requirements of general iron castings. Therefore, the cupola furnace is still the main equipment for casting iron melting. The cu...

AI Technical Summary

Problems solved by technology

The process of feeding the cupola in the above-mentioned prior art has obvious disadvantages: firstly, the feed barrel of this kind of feeder enters into the cupola through the feed port on the side, and because the height and diameter of the feed barrel are usually large, Coupled with the height of the frame-shaped beam frame of the traveling mechanism of the monorail feeder, the steel rope and the hook, not only the height and width of the feeding port on the side of the cupola are larger (for example, the melting rate is 10 per hour. The feeding port of the cupola up to 12 tons is about 4 to 5 meters high and 1.6 to 1.8 meters wide, and the feeding port of the cupola with a melting rate of 3 tons is 2.5-2.6 meters high, and the width is basically the same as the inner diameter of the furnace) , resulting in more external air being sucked into the inner cavity of the furnace body from the upper space of the charging port during operation of the cupola, and the suction generated by the hot air flow and the fan of the dust removal device is consumed by the entry of the external air at the upper part of the charging port Lose

This type of feeder must cooperate with the transformation of the furnace chimney. It is necessary to install an air induction device on the upper part of the furnace chimney that emits smoke from the side. Although the problem of smoke entering the workshop can be avoided during operation, the structure of this structure The cupola furnace not only requires a large investment and high energy consumption during operation, but also because the position of the feeding port is relatively high (it can reduce the height of the chimney, but it is still higher than the position of the feeding port of ordinary cupolas), it is easy to cause damage to the furnace when feeding. Damage and breakage of coke

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