Reducing smelting furnace for regenerating metals

Abstract

The invention provides a renewable metal reduction smelting furnace, which is environment protective and energy saving, and belongs to the melting facility for non-ferrous metal smelting. The smeltingfurnace comprises furnace bodies, an agitation device, an exhaust gas treatment installation and a smoke and dust recovering device, the quantity of the furnace bodies is at least two, and a fire duct is connected between the furnace bodies; the agitation device is positioned at the upper end of the furnace body, and the exhaust gas treatment installation and the smoke and dust recovering deviceare positioned on the side of the furnace bodies. The smelting furnace of the invention has the following advantages: firstly, precipitation smelting and reaction smelting are performed in one furnace, thus the product quality is improved, and the recovery efficiency is enhanced; secondly, thermal storage function and heat quantity circulation can be used alternatively, and the thermal efficiencyis high; thirdly, the production capacity per unit time can be promoted greatly through the whole course mechanized operation; fourthly, the adoption of the multi-room structure and the hot air combustion-supporting process ensure that energy consumption is reduced greatly; fifthly, the labor intensity of workers can be reduced greatly after the adoption of the whole course mechanized operation; sixthly, the material can be fed from the furnace top, the speed is fast, thus the production efficiency of the device can be improved greatly, and the operating environment for workers can be protected in hermetic condition.

Description

technical field [0001] The invention relates to a smelting equipment for reducing and smelting non-ferrous metals such as regenerated lead, regenerated waste batteries, tin sand and the like, in particular to a reduction smelting furnace for regenerated metals. Background technique [0002] At present, the recycled metal reduction smelting furnaces used internationally and domestically can be divided into two categories according to the principle: [0003] 1. Precipitation smelting, such as tunnel reverberatory furnace, etc.; tunnel reverberatory furnace, the furnace body is tunnel-shaped, most of which are artificially fed on the side of the furnace body, and lead and slag are placed on the other side. The exhaust gas temperature is as high as 1100 ° C, without mechanical stirring device; the thermal efficiency of the reverberatory tunnel furnace is low, so that 80% of the heat is lost. [0004] 2. Reaction smelting, such as short kiln; the short kiln is a horizontal rotar...

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Problems solved by technology

[0006] Due to structural reasons, the above two types of equipment have the disadvantages of open feeding and flue ash can only be returned to the furnace indirectly, making the material particles diffuse into the surrounding environment, which has a great impact on the environment, and it is not easy to realize in the production process. Fully mechanized operation and poor working environment

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