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Smoke purification and tail gas cleaning treatment device in acid making process

A treatment device and exhaust gas cleaning technology, applied in the directions of gas treatment, combined device, filtration loop, etc., can solve the problems of high cost of acid-making exhaust gas treatment, high energy consumption of exhaust gas treatment, and pollution of exhaust gas to the environment, and achieve harmless treatment. , the effect of reducing pollution and high purification efficiency

Inactive Publication Date: 2019-10-22
YIMEN COPPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a flue gas removal and tail gas cleaning treatment device in the process of acid production to solve the problems of high cost of tail gas treatment, pollution of the environment by tail gas and high energy consumption of tail gas treatment, and the problems of not being energy-saving and environmentally friendly

Method used

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  • Smoke purification and tail gas cleaning treatment device in acid making process
  • Smoke purification and tail gas cleaning treatment device in acid making process
  • Smoke purification and tail gas cleaning treatment device in acid making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A flue gas removal of impurities and tail gas cleaning treatment device in the acid production process, a spherical flue is arranged at the rear end of the bottom blowing furnace, the spherical flue is connected to an electric dust collector, the electric dust collector is connected to a high-temperature fan, and the high-temperature fan is connected to a purification system; There is an electrostatic precipitator ash hopper at the bottom of the electrostatic precipitator, and the ash hopper of the electrostatic precipitator is connected to the screw conveyor, and the screw conveyor is connected to the smoke and dust intermediate warehouse; there is a valve A between the electric precipitator and the high-temperature fan, and between the high-temperature fan and the purification system. A valve B is set, and a valve C is set between the electrostatic precipitator and the purification system, which can realize the inclusion of about 25g / Nm in the flue gas from the smelting...

Embodiment 2

[0032] On the basis of Example 1, the flue gas from the purification system is transported to the power wave, the power wave is connected to the packed tower, and the packed tower is connected to the drying tower through the electrospray section; the power wave is provided with a bypass connected to the settling tank, and the settling tank is connected to the FBL filter. The FBL filter is equipped with a return pipeline connected to the power wave, the FBL filter and the settling tank are connected to the sewage acid treatment device; the electric fog section is connected to the underground tank; the underground tank is connected to the desulfurization tower, and the desulfurization tower is connected to the sewage acid treatment device, and the desulfurization tower is equipped with a loop Connecting the packed tower can realize that the flue gas from the electric dust collector enters the sulfuric acid system for power wave washing to remove a large amount of impurities in the...

Embodiment 3

[0034] On the basis of Example 2, the drying tower is connected to the first-level conversion section through the fan, the first-level conversion section is connected to the first-level absorption tower, the first-level absorption tower is connected to the second-level conversion section, and the second-level conversion section is connected to the second-level absorption tower. The suction tower is connected to the first-level desulfurization tower; the first-level suction tower and the second-level suction tower are provided with a split pipe to connect to the acid storage; a pre-reformation device is installed between the fan and the first-stage conversion section, and the pre-reformation device is connected to the pre-absorption device, and the absorption device is connected to the Relay fan.

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Abstract

The invention relates to a smoke purification and tail gas cleaning treatment device in an acid making process. A spherical flue is arranged at the rear end of a bottom blowing furnace and connected with an electrical precipitator; the electrical precipitator is connected with a high temperature fan; the high temperature fan is connected with a purification system; smoke of the decontamination system is conveyed to a dynamic wave; the dynamic wave is connected with a packing tower; the packing tower is connected with a drying tower through an electric mist section; the drying tower is connected with a primary conversion section through a fan; the primary conversion section is connected with a primary absorption tower; the primary absorption tower is connected with a secondary conversion section; the secondary conversion section is connected with a secondary absorption tower; and the secondary absorption tower is connected with a primary desulfurizing tower. The device solves the problems of high acid making tail gas treatment cost, environmental pollution due to tail gas, higher energy consumption for the tail gas treatment, high energy consumption and environmental pollution.

Description

technical field [0001] The invention relates to the technical field of acid-making tail gas treatment, in particular to a flue gas removal and tail gas cleaning treatment device in the acid-making process. Background technique [0002] With the continuous mining of copper concentrates, the reserves of rich ore are getting less and less. At present, the raw materials used by copper smelting enterprises tend to be low-coarse and hybrid. The phase composition is complex. During the smelting process, the smelting flue gas generated by the smelting reaction of the raw materials enters the acid system to produce sulfuric acid; a large number of volatile impurities and small dust particles in the raw materials are entrained into the flue gas, which brings great difficulties to the dust removal and purification of the flue gas in the later stage. big impact. After the flue gas passes through the acid system, the SO in the flue gas 2 Eventually becomes sulfuric acid, but still con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D53/78B01D53/75B01D53/50B01D53/26B01D36/04C01B17/74
CPCB01D50/00B01D53/26B01D53/78B01D53/50B01D53/75B01D36/04C01B17/74B01D2251/106B01D2258/0283
Inventor 戚永辉张体富杨应宝张万勇孔祥玉陈全坤杨洪明郎学云
Owner YIMEN COPPER CO LTD
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