Air seal system to reduce dust accumulation and sticking on water wall of waste heat boiler of silver copper smelting furnace

Abstract

The invention discloses an air seal system capable of reducing dust deposition and adhering of a water wall of a waste heat boiler of a silver copper smelting furnace. Air compression wind is conveyed to the position of a boiler uptake flue through a main pipeline. In the position of preset elevation of the boiler uptake flue, high-pressure controllable spray guns and spray gun holders are mounted in the centered positioned of two sides of the plate tubular type water wall. Two branch pipes are drawn out of the main pipeline and connected with the spray guns on the two sides of the boiler uptake flue through flexible metal tubes. During operation of the boiler under the normal working condition, a valve is opened for air feeding, the air amount of the main pipeline is adjusted, and the air seal system starts to work. The air seal system has the beneficial effects that high-pressure gas enters a descending flue and a radiation chamber through the uptake flue, the smoke content of a convection chamber is greatly lowered, the dust deposition degree of the water wall of the boiler can be effectively lowered, the dedusting labor intensity of firemen is relieved, and the production efficiency of a boiler system is improved.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metallurgy, and relates to an air seal system for reducing ash accumulation and adhesion on a water wall of a waste heat boiler of a silver copper smelting furnace. Background technique [0002] Limited to economic and technical conditions and the particularity of the silver furnace's own structure, the waste heat boiler used in the silver furnace must be designed with a special structure, and because the silver copper smelting furnace is bulky and the smelting system is complex, there is no ready-made mature technology for reference. Under the conditions of high-load production (high concentration of oxygen, high feeding amount), the soot on the inner water wall of the boiler is seriously bonded, and the boiler system cannot guarantee the continuous high-load production of the silver copper smelting furnace, which has become a bottleneck problem that restricts the process system from improving...

AI Technical Summary

Problems solved by technology

[0002] Limited to economic and technical conditions and the particularity of the silver furnace's own structure, the waste heat boiler used in the silver furnace must be designed with a special structure, and because the silver copper smelting furnace is bulky and the smelting system is complex, there is no ready-made mature technology for reference. Under the conditions of high-load production (high concentration of oxygen, high feeding amount), the soot on the inner water wall of the boiler is seriously bonded, and the boiler system cannot guarantee the continuous high-load production of the silver copper smelting furnace, which has become a bottleneck problem that restricts the process system from improving production efficiency

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