Zinc oxide desulfurization method suitable for zinc smelting system

A zinc oxide, zinc smelting technology, applied in chemical instruments and methods, separation methods, gas treatment and other directions, can solve the problems of inability to comprehensively recycle desulfurization products, pipeline blockage, low desulfurization rate, etc., to achieve low desulfurization cost, not easy to block. , the effect of high desulfurization efficiency

Inactive Publication Date: 2017-12-29
HUBEI XUFENG ENVIRONMENTAL TECH
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Problems solved by technology

[0002] Zinc oxide is an intermediate product of the lead-zinc smelting system. Using zinc oxide to remove sulfur dioxide produced in the system can greatly reduce the cost of desulfurization. Therefore, this meth

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  • Zinc oxide desulfurization method suitable for zinc smelting system

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[0022] Such as figure 1 Shown, a zinc oxide desulfurization method suitable for zinc smelting system, the method steps are as follows:

[0023] Step 1). The intermediate product zinc oxide powder produced by the rotary volatilization kiln of the zinc smelting system is transported to the zinc oxide intermediate silo 2 through the gasification jet pump 1, and then passes through the belt scale 3 and spiral feeder installed at the lower part of the intermediate silo 2 The machine 4 sends the zinc oxide powder to the slurry tank 5, in the slurry tank 5, the zinc oxide powder is mixed with water to prepare a suspension, and after stirring, a washing liquid is obtained;

[0024] Step 2). The washing liquid prepared in the slurry mixing tank 5 is injected into the first-level power wave scrubber circulation tank 9 and the second-level power wave scrubber circulation tank 6 through the transfer pump, and then passes through the first-level power wave scrubber The circulating pumps on the...

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Abstract

The invention relates to a zinc oxide desulfurization method for removing sulfur dioxide tail gas produced in a zinc smelting system, which adopts two-stage dynamic wave washing and absorption, forced oxidation of an aeration tower, dechlorination of desulfurization liquid, and returns to the zinc system to comprehensively recover zinc. The method has high desulfurization efficiency, low production cost, and the pipeline is not easy to be blocked, and the desulfurization liquid is used for comprehensive recovery of zinc, and is especially suitable for a zinc smelting system.

Description

technical field [0001] The invention relates to a zinc oxide desulfurization method for removing sulfur dioxide tail gas generated in a zinc smelting system. Background technique [0002] Zinc oxide is an intermediate product of the lead-zinc smelting system. Using zinc oxide to remove sulfur dioxide produced in the system can greatly reduce the cost of desulfurization. Therefore, this method has been studied in China since the 1980s, but due to the low desulfurization rate, Pipeline clogging and desulfurization products cannot be comprehensively recycled and reused, so it has not been applied in industry. Contents of the invention [0003] The purpose of the present invention is to change the deficiencies of the existing zinc oxide desulfurization technology, and provide a zinc oxide desulfurization method suitable for zinc smelting systems. [0004] The technical solution adopted by the present invention to solve its technical problem is: a kind of zinc oxide desulfuriz...

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Application Information

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IPC IPC(8): B01D53/50B01D53/80B01D53/73
CPCB01D53/502B01D53/73B01D53/80B01D2258/025
Inventor 徐文卿
Owner HUBEI XUFENG ENVIRONMENTAL TECH
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