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Low-resistance forced water cooling drip pipe type demister and demisting method

A water-cooled drop type, mist eliminator technology, applied in chemical instruments and methods, separation methods, combined devices, etc., can solve the problems of insufficient flushing, low dust removal efficiency, large flue gas flow resistance, etc., and is not easy to block and scale. , The effect of uniform flow and high heat exchange efficiency

Inactive Publication Date: 2016-02-03
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low efficiency of mist removal and dust removal, large resistance to flue gas flow and insufficient flushing of traditional mist eliminators, and to provide a low-resistance forced water-cooled drop-type tubular mist eliminator and a mist removal method

Method used

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  • Low-resistance forced water cooling drip pipe type demister and demisting method
  • Low-resistance forced water cooling drip pipe type demister and demisting method
  • Low-resistance forced water cooling drip pipe type demister and demisting method

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Embodiment

[0029] Such as Figures 1 to 3 shown. The invention discloses a low-resistance forced water-cooled drop-type tube-type demister, which includes a water-cooled drop-type tube bundle demist system arranged on the top of a desulfurization tower, and a forced cooling system for passing cooling water into the water-cooled drop-type tube bundle demist system. water circulatory system;

[0030] The water-cooled drop-type tube bundle defogging system is a tube row array composed of tube bundles 1 with drop-shaped cross-sections arranged in a multi-layer dot matrix staggered in the tube box 2;

[0031] The forced cooling water circulation system includes a water storage tank 5, a circulation pump 6, a water inlet tank 7, a water outlet tank 8, and an air cooler 9; The pump 6 and the water inlet tank 7; the water inlet end of the pipe row array is connected to the water inlet tank 7, and the water outlet end is connected to the water outlet tank 8.

[0032] The upper part of the cros...

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Abstract

The invention discloses a low-resistance forced water cooling drip pipe type demister and demisting method. The demister comprises a drip pipe bundle demisting system arranged on the top of a desulfuration tower and a forced cooling water circulation system used for introducing cooling water into a pipe bundle. The drip pipe bundle demisting system comprises multiple layers of pipe row arrays with water-drop-shaped sections and multiple nozzles achieving upward and downward flushing, wherein the pipe row arrays are arranged in a pipe box in a lattice and staggered mode, and the nozzles are arranged between pipe bundles in a layered and array mode. The forced cooling water circulation system comprises a water storage box, a circulation pump, a water inlet box, a water outlet box and an air cooler. The water storage box is sequentially connected with the circulation pump, the water inlet box, the water outlet box and the air cooler through a circulation pipeline. The demister combines inertial separation with condensation separation, has the significant effect on removing fine particles, has the advantages of being high in demisting and dust removal efficiency, high in cooling efficiency and low in resistance, saving water and the like, and can effectively reduce gypsum rain produced after flue gas desulfurization.

Description

technical field [0001] The invention relates to flue gas demisting in a wet flue gas desulfurization device, in particular to a low-resistance forced water-cooled drop-type tubular demister and a demisting method. Background technique [0002] With the intensification of smog, coal-fired enterprises are facing great pressure on flue gas treatment and pollutant control, and gradually increased the emission control of colloidal particles, fine mist droplets, heavy metal vapor and other complex pollutants in flue gas. . Therefore, it is of great significance for the sustainable development of coal-fired enterprises to build supporting demisting devices and improve demisting and dust removal technology. [0003] Mist eliminators usually use the principles of inertial separation, centrifugal separation, sedimentation separation, phase change separation, etc. to remove moisture, sulfuric acid, sulfate, SO 2 And other fine particles to reduce the blockage and corrosion of subsequ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D45/04B01D45/08B01D5/00
Inventor 刘定平袁丹珏周俊
Owner SOUTH CHINA UNIV OF TECH
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