Water cooling device for oxygen lance of bottom blowing lead smelting furnace

Abstract

The invention discloses a water cooling device for an oxygen lance of a bottom blowing lead smelting furnace. The water cooling device comprises two semicylindrical water jackets which consists of bottom plates, arc-shaped web plates, vertical plates and top plates and have a hollow structure, wherein the diameter of each water jacket bottom plate is greater than that of each top plate; centers of the vertical plates of the two semicylindrical water jackets sink towards inner cavities of the water jackets to form arc-shaped notches; after the two water jackets are in butt joint to form a cylinder, the two arc-shaped notches form a circular oxygen lance hole through which the oxygen lance passes; and a water inlet pipe and a water outlet pipe which are communicated with the inner cavities of the water jackets are arranged on the top plates of the two water jackets. The water cooling device has a simple structure and a novel concept, softened water is used as a cooling medium, and the aim of protecting the oxygen lance is fulfilled by reducing the temperature of the oxygen lance and refractory materials on the periphery of the oxygen lance to prolong the service life of the oxygen lance.

Description

technical field [0001] The invention belongs to the field of lead bottom blowing smelting equipment, in particular to a water cooling device for an oxygen lance of a bottom blowing lead smelting furnace. Background technique [0002] At present, the Shuikoushan lead smelting method and the Yuguang lead smelting method are widely used in my country to smelt lead. The materials in the lead smelting process need to go through two smelting processes of oxidation and reduction, and the oxidation process is completed in the bottom blowing lead smelting furnace. . The furnace body of the bottom blowing lead smelting furnace is a cylindrical structure, with a feeding port and a smoke outlet at the top, a siphon lead outlet, a slag outlet and a burner at both ends of the furnace body, and an oxygen lance at the bottom of the furnace body. The material is fed from the top feeding port, and the oxygen is blown in under high pressure from the bottom oxygen lance. The material and oxygen...

AI Technical Summary

Problems solved by technology

The oxygen lance installed at the bottom of the furnace body is inserted into the furnace body by the bottom oxygen lance base, and the ambient temperature in the furnace body is as high as 1000°C, and the working conditions are very harsh, resulting in a short service life of the oxygen lance and frequent replacement, which seriously affects the smooth production conduct

[0003] At present, the replacement rate of the oxygen lance in the bottom-blowing lead furnace of each lead smelting plant is relatively high, and no effective solution has been found so far to solve this problem

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