Water-cooled sliding slag outlet of a metallurgical waste slag smelting furnace

Abstract

Disclosed is a water-cooled sliding slag outlet for a metallurgical slag smelting furnace. The water-cooled sliding slag outlet for the metallurgical slag smelting furnace comprises a furnace shell, a refractory material layer and a slag liquid outlet hole prefabricated part, wherein the refractory material layer is arranged in the furnace shell, and the slag liquid outlet hole prefabricated part is formed in the furnace shell. A slag liquid outlet hole is formed in the center of the slag liquid outlet hole prefabricated part. The slag liquid outlet hole prefabricated part is embedded into a groove formed in the top end of a first water-cooled slag tapping sleeve, and a corresponding second water-cooled slag tapping sleeve is arranged at the bottom end of the first water-cooled slag tapping sleeve. The first water-cooled slag tapping sleeve comprises a hollow basic body and a center hole which is formed in the hollow basic body. The second water-cooled slag tapping sleeve comprises a hollow basic body and a center hole which is formed in the hollow basic body. The center holes correspond to the slag liquid outlet hole in a coaxial mode. One end of the second water-cooled slag tapping sleeve is connected with a push rod, the push rod is connected with an oil cylinder sliding device, and disk spring jacking devices are arranged at the bottom end of the second water-cooled slag tapping sleeve. The strength is high, the thermal conductivity is high, heat dissipation is quick, the sliding contact surfaces are smooth, the fit clearance is good, and the overall service life is long.

Description

technical field [0001] The invention relates to the field of metallurgical waste slag smelting, in particular to a slag outlet of metallurgical waste slag smelting furnace equipment. Background technique [0002] At present, the sliding slag outlet of metallurgical waste slag smelting furnace equipment in my country mostly adopts sliding refractory brick slag outlet, which is a mechanism that controls the flow of slag liquid by the relative displacement of the upper and lower two perforated refractory bricks. [0003] Disadvantages of sliding refractory brick slag outlet: [0004] 1. Sliding refractory bricks are subject to long-term erosion, erosion, and rapid temperature changes of slag liquid, resulting in the expansion of the slag outlet, cracking and breaking of the refractory bricks, and low service life. [0005] 2. The matching precision of the contact surfaces of the upper and lower sliding refractory bricks is not high, and the hardness is low. Under long-term fri...

AI Technical Summary

Problems solved by technology

[0004] 1. Sliding refractory bricks will expand the slag outlet, crack and break the refractory bricks under the long-term erosion, scouring and rapid temperature changes of the slag liquid, and the service life is low

[0005] 2. The matching precision of the contact surfaces of the upper and lower sliding refractory bricks is not high, and the hardness is low. Under long-term friction, wear and gaps are prone to appear between the two refractory bricks, resulting in leakage of slag and water, which is likely to cause safety production accidents

Images