Flue gas purification device

A flue gas purification and washing tower technology, applied in gas treatment, chemical instruments and methods, using liquid separation agents, etc., can solve the problems of large flue gas treatment capacity, affecting production efficiency, increasing system pressure drop, etc., to achieve threshing Reduced energy consumption, improved threshing effect, and reduced system resistance

Pending Publication Date: 2020-04-21
TONGLING NON FERROUS METAL GROUP CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the large flue gas treatment capacity of the power wave scrubber, the dust particles will soon block the demister, which will increase the pressure drop of the system and greatly increase the energy consumption. It is necessary to stop production frequently to clean the demister, which is not only time-consuming Consumption of labor, but also affects production efficiency

Method used

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  • Flue gas purification device

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Embodiment Construction

[0009] The specific implementation manner of the present invention will be further described in detail below by describing the embodiments in conjunction with the accompanying drawings.

[0010] A flue gas purification device, comprising a washing pipe 10 with the mouth facing upwards, the washing pipe 10 is provided with a nozzle 20, the outlet of the nozzle 20 points to the mouth of the washing pipe 10, and the end of the washing pipe 10 communicates with the washing tower 30 , The top of the washing tower 30 is provided with a flue gas outlet 31 , and the flue gas circulation path in the washing tower 30 is provided with a reduced diameter portion 32 . The flue gas enters the washing tower 30 after fully mixing and reacting with the liquid ejected from the nozzle 20 in the washing pipe 10, and accelerates to generate turbulent flow at the narrowing part 32, and the dust particles entering the washing tower 30 with the air flow collide at the turbulent flow When it falls, th...

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Abstract

The invention belongs to the technical field of copper smelting, and particularly relates to a flue gas purification device which comprises a washing pipe with an upward pipe opening, a nozzle is arranged in the washing pipe, a spraying opening of the nozzle points to the direction of the pipe opening of the washing pipe, the tail end of the washing pipe is communicated with a washing tower, a flue gas outlet is formed in the top of the washing tower, and a reducing part is arranged on a flue gas circulation path in the washing tower. According to the invention, the reducing part is adopted toreplace the original demister, so that the system resistance is reduced, the particle removal energy consumption is greatly reduced, the demister is replaced or cleaned without stopping production, the production efficiency is guaranteed, in addition, after dusty smoke flows through the reducing part, the removal rate of particles with the particle size of 30 microns or more is greatly improved,and the particle removal effect is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of copper smelting, in particular to a flue gas purification device. Background technique [0002] A large amount of SO2 flue gas will be produced during the copper smelting process, and direct emission will seriously pollute the air. At present, power wave scrubbers are usually used to wash the flue gas, and the flue gas is used to produce sulfuric acid after cooling and dust removal. During the washing process, the flue gas enters the washing tank from top to bottom, and the washing liquid is sprayed into the airflow from bottom to top. The gas-liquid two-phase high-speed reverse collision forms a highly turbulent foam area. The contact surface area at the foam area is Large and updated quickly, the flue gas temperature drops sharply. After passing through the demister, most of the dust particles in the original flue gas are separated and settled, and the gas is exported from the top of the scrubber. Howe...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/50B01D47/06B01D47/00
CPCB01D47/00B01D47/06B01D53/50B01D53/78B01D2258/0283
Inventor 张志国仝瑞玺施章铨章健
Owner TONGLING NON FERROUS METAL GROUP CORP
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