A quick drain valve for molten tin melting furnace

Abstract

The invention relates to a fast liquid discharging valve of a molten tin melting furnace. The fast liquid discharging valve comprises a valve body, a valve element, a valve rod, a shaft pin and a passive valve sleeve. The fast liquid discharging valve is characterized in that an inverted-cone-frustum-shaped inner cavity is formed in the valve body and is sealed through the valve element arranged in the valve body; the upper end of the valve element is connected with the valve rod capable of vertically moving through the shaft pin; the outer portion of the valve rod is provided with the passive valve sleeve capable of moving vertically along with the valve rod; and the inner wall face of an opening in the lower periphery of the passive valve sleeve is connected with the upper edge of the valve body so that double sealing can be formed between the passive valve sleeve and the valve body. According to the fast liquid discharging valve of the molten tin melting furnace, the technical problems that in the prior art, the quality of large casting products is hard to ensure, and consequently the environment of a workshop becomes severe, harm is caused to the body of an operation worker, and the energy utilization rate is low are solved. The fast liquid discharging valve is simple in structure, convenient to operate and capable of saving energy.

Description

technical field [0001] The invention relates to a quick drain valve of a molten tin melting furnace, which belongs to the field of mechanical manufacturing technology. Background technique [0002] At present, domestic tin liquid melting furnaces mostly use the tin liquid to be melted and poured out the liquid manually for casting, that is, the upper mouth of the equipment is fully opened, and the tin liquid is manually filled in the upper part with a spoon body, and then moved to the casting mold, and the tin liquid is manually poured out. The liquid is poured into the mould. If the volume of the cast body is too large, continuous casting is required for multiple times. Since the melting point of tin liquid is low and it is easy to solidify, it is difficult to guarantee the quality of the casting for multiple castings. Such a structure has many defects; for example: firstly, manual casting is difficult to guarantee the product quality of large castings; secondly, manual fi...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a quick discharge valve for molten tin melting furnace, which solves the technical problems in the prior art that the product quality of large castings is difficult to guarantee, resulting in harsh workshop environment, unfavorable health for operators, and low energy utilization rate.

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