System and method for treating abnormal exhaust gas in metal sulfide ore smelting

A flue gas treatment system and flue gas treatment technology, applied in the metallurgical field, can solve problems such as being unable to be used for acid production, unable to better meet process requirements, etc., and achieve the effects of reducing energy consumption, low environmental pollution, and strong adaptability

Active Publication Date: 2015-08-12
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the treatment of this part of flue gas, not only cannot be used for acid production, but also common low-concentration flue gas treatment technologies such as activated coke desulfurization cannot better meet the process requirements

Method used

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  • System and method for treating abnormal exhaust gas in metal sulfide ore smelting

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Embodiment Construction

[0021] like figure 1 As shown, a system for treating abnormal flue gas in the smelting of metal sulfide ores includes a turbulence tower 1, a washing tower 2, an electric demister 3 and a primary absorption tower 4 connected in sequence, and also includes a first plate exchanging Heater 8, second plate heat exchanger 9 and desorption tower 10, the top of the primary absorption tower 4 communicates with the secondary absorption tower 6 through the first exhaust pipe 5, and the bottom connects with the first through the rich liquid delivery pipe 7 in turn. The plate heat exchanger 8, the second plate heat exchanger 9 and the desorption tower 10 are connected, the bottom of the desorption tower 10 is connected with a reboiler 11 and a lean liquid delivery pipe 12, and the top is connected with the fan 13 through a second exhaust pipe 16. Connection, the other end of the lean liquid delivery pipe 12 is connected with a liquid storage tank 15 through the first plate heat exchanger ...

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Abstract

The invention provides an irregular exhaustion flue gas treatment system in metal sulphide ore smelting and an irregular exhaustion flue gas treatment method in metal sulphide ore smelting by utilizing the system. The system comprises a turbulent rushing tower, a washing tower, an electric demister and a primary adsorption tower, which are connected in sequence; the system further comprises a first plate type heat exchanger, a second plate type heat exchanger and an analyzing tower, wherein the top of the primary adsorption tower is communicated with the secondary adsorption tower by a first flue exhaustion pipeline; the bottom of the primary adsorption tower is in sequence connected with the first plate type heat exchanger, the second plate type heat exchanger and the analyzing tower by a rich liquor conveying tube; the bottom of the analyzing tower is connected with a re-boiler and a poor liquor conveying tube; the top of the analyzing tower is connected with an air blower. The system disclosed by the invention is strong in adaptability to the SO2 flue gas concentration and capable of effectively treating the stray SO2 flue gas, so that the SO2 exhaustion flue gas in the metal sulphide ore smelting process is utilized to the greatest extent.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and relates to a treatment system for abnormally exhausted flue gas in metal sulfide ore smelting and a treatment method for abnormally exhausted flue gas in metal sulfide ore smelting using the system. Background technique [0002] The pyrometallurgical smelting process of metal sulfide ore will produce a large amount of sulfur dioxide flue gas. The most common and mature method for the treatment of sulfur dioxide flue gas is the sulfuric acid flue gas acid production process. When smelting flue gas is used for acid production, it is required that the concentration of flue gas is appropriate, and the flue gas is continuous and stable. However, for metal sulfide ore smelting converters that operate intermittently, the SO produced during the normal blowing process 2 The flue gas can be used to make acid, but the abnormally evacuated SO 2 Flue gas, due to its unstable concentration, cannot mee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14B01D53/18B01D50/00
Inventor 常全忠刘玉强冯拥军刘陈刘世和迟建唐照勇何春文苏青天王金峰瞿尚君
Owner JINCHUAN GROUP LIMITED
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