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Waste heat boiler used for scrap copper smelting furnace

A waste heat boiler and smelting furnace technology, applied in the field of waste heat boilers, can solve the problems of high-temperature corrosion of metal heating surfaces, shorten the service life of waste heat boilers, etc., and achieve the effects of ensuring safe operation, preventing erosion, and prolonging service life

Inactive Publication Date: 2012-11-21
CHINA NERIN ENG
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] However, when the smelting furnace is applied to the recycling process of scrap copper resources, that is, the raw materials used are scrap copper, some of which are electronic scraps, there will be a small amount of halogen elements such as Cl, F, Br and their gases in the flue gas generated by smelting. Such substances cause high-temperature corrosion to the metal heating surface in the high-temperature zone of the inlet of the waste heat boiler, shortening the service life of the waste heat boiler

Method used

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  • Waste heat boiler used for scrap copper smelting furnace
  • Waste heat boiler used for scrap copper smelting furnace

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention provides a waste heat boiler. The waste heat boiler comprises a boiler body. A smoke channel is arranged in the boiler body; the smoke channel is provided with a smoke inlet and a smoke outlet; the boiler body consists of a membrane wall. A corrosion-resistant material layer is formed on the inner surface of the boiler body in the manner of build up welding from the smoke inlet for a scheduled length. Thus, according to the waste heat boiler used for a scrap copper smelting furnace, build up welding treatment is performed on the inner surface of the boiler body from the smoke inlet for the scheduled length so as to form a compact protective layer, therefore, the erosion effect of high-temperature smoke on the inner surface of the boiler body can be effectively prevented, so that the safe operation of the waste heat boiler is ensured, and the service life of the waste heat boiler is prolonged.

Description

technical field [0001] The invention relates to a waste heat boiler used in a scrap copper smelting furnace. Background technique [0002] In order to meet the current market demand, that is, to use waste copper resources to refine refined copper products, the top-blown converter smelting process came into being, and the waste heat boiler is one of the key equipment in this process. The flue gas generated during the non-ferrous metal smelting process has a high temperature and contains a lot of heat energy, which usually needs to be recovered. Waste heat boilers are usually used to recover the heat energy in the high-temperature flue gas produced by smelting furnaces (for example, top-blown converters), produce saturated steam, and cool the flue gas. Therefore, it not only meets the process needs, but also recovers heat energy for production needs, saving energy. [0003] However, when the smelting furnace is applied to the recycling process of scrap copper resources, that...

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Application Information

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IPC IPC(8): F23M5/08F24H9/00F27D17/00
CPCY02P10/25
Inventor 杨平宋冬根廖祚洗
Owner CHINA NERIN ENG
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