Copper smelting waste heat using boiler

Abstract

The invention discloses a copper smelting waste heat using boiler. The copper smelting waste heat using boiler comprises a boiler barrel (1) for storing boiler water, a first circulating pipeline and a second circulating pipeline connected with the boiler barrel (1), a radiation hearth (2) and a low-temperature section wall wrapped pipe (6) connected with the first circulating pipeline, and a convection evaporation pipe bundle (3) connected with the second circulating pipeline; after heat exchange is carried out on the water in the first circulating pipeline, the water enters the boiler barrel (1) through the radiation hearth and the low-temperature section wall wrapped pipe (6) to perform steam-water separation, after heat exchange is carried out on the water in the second circulating pipeline, the water enters the boiler barrel (1) through the convection evaporation pipe bundle (3) to perform steam-water separation. According to the copper smelting waste heat using boiler, the heat exchange is performed between the boiler water and high-temperature exhaust gas, the water is formed into super-heated steam, and the super-heated steam is supplied to a power station for generating power or a user to supply steam; the heat energy in the high-temperature exhaust gas is recycled effectively and reasonably, and accordingly the energy is greatly saved; the high-temperature corrosion and low-temperature corrosion to the waste heat boiler due to the high-temperature exhaust gas and boiler water are avoided.

Description

technical field [0001] The invention relates to the technical field of thermal energy and environmental protection, in particular to a copper smelting waste heat utilization boiler. Background technique [0002] The pyrometallurgical copper smelting process produces a large amount of waste heat resources. At present, the recovery and utilization of waste heat is mainly to produce saturated steam for production, domestic use or saturated steam power generation, and the level of waste heat utilization is low. [0003] The main problem of low recovery and utilization rate of waste heat in copper smelting is that the superheater of the waste heat boiler is prone to high-temperature corrosion, resulting in superheater tube burst accidents; the heating surface at the tail is prone to low-temperature corrosion, so saturated steam without superheater and economizer is basically used With waste heat boiler recovery mode, the recovery rate and utilization rate of waste heat are greatl...

AI Technical Summary

Problems solved by technology

[0003] The main problem of low recovery and utilization rate of waste heat in copper smelting is that the superheater of the waste heat boiler is prone to high-temperature corrosion, resulting in superheater tube burst accidents; the heating surface at the tail is prone to low-temperature corrosion, so saturated steam without superheater and economizer is basically used Waste heat boiler recovery mode, waste heat recovery rate and utilization rate are greatly reduced

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