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Method for removing fog droplets in gas with combination of glass ball expansion bed and coalescer

A coalescer and glass ball technology, applied in chemical instruments and methods, gas treatment, separation methods, etc., can solve the problems of poor purification efficiency of fine mist droplets, and achieve fast and efficient adsorption, reproducible materials, and smooth surfaces Effect

Active Publication Date: 2019-07-23
ZHENJIANG JIANGNAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Faced with the complexity of the types of mist contained in the actual industrial gas, and the current situation of poor purification efficiency of fine mist droplets in the actual production and operation process, it is urgent to find a purification system suitable for removing various types of mist droplets in actual working conditions. method

Method used

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  • Method for removing fog droplets in gas with combination of glass ball expansion bed and coalescer
  • Method for removing fog droplets in gas with combination of glass ball expansion bed and coalescer

Examples

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Effect test

Embodiment 1

[0027] like figure 1 Shown, the present invention utilizes glass sphere expanded bed in conjunction with coalescer to carry out the implementation steps of the purifying method that removes mist droplet in gas as follows:

[0028] (1) Pass the industrial airflow (synthetic waste gas from organosilicon monomer) containing droplet size of 1-10 μm and concentration of 200-500ppm into the expanded bed of glass spheres filled with porous glass spheres, and carry out Preliminary adsorption to obtain a preliminary purified gas flow; among them, the velocity of the industrial gas flow in the glass bead expanded bed is at the critical fluidization velocity, so that the glass bead expanded bed is in a slightly expanded state; the glass bead expanded bed is distributed in three layers from bottom to top Porous glass spheres of different particle sizes, the particle diameters of the porous glass spheres are 5mm, 3mm and 1mm respectively, and the corresponding filling heights account for 4...

Embodiment 2

[0031] like figure 1 Shown, the present invention utilizes glass sphere expanded bed in conjunction with coalescer to carry out the implementation steps of the purifying method that removes mist droplet in gas as follows:

[0032](1) Pass the industrial airflow (synthetic waste gas from organosilicon monomer) containing droplet size of 1-10 μm and concentration of 200-500ppm into the expanded bed of glass spheres filled with porous glass spheres, and carry out Preliminary adsorption to obtain a preliminary purified gas flow; among them, the velocity of the industrial gas flow in the glass bead expanded bed is at the critical fluidization velocity, so that the glass bead expanded bed is in a slightly expanded state; the glass bead expanded bed is distributed in three layers from bottom to top Porous glass spheres of different particle sizes, the particle diameters of the porous glass spheres are 5mm, 3mm and 1mm respectively, and the corresponding filling heights account for 40...

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Abstract

The invention discloses a method for removing fog droplets in gas with combination of a glass ball expansion bed and a coalescer. The method comprises the following steps: (1) introducing industrial gas flow into the glass ball expansion bed filled with porous glass balls, and conducting preliminary adsorption to obtain preliminarily purified gas flow; and (2) introducing the preliminarily purified gas flow obtained in step (1) into the coalescer for coalescence and settlement of fine fog droplets, and discharging purified gas flow through the coalescer, wherein if the residual concentration of fog droplet impurities in the purified gas flow is detected to be higher than 30-40 ppm, the glass ball expansion bed and the coalescer needs to be cleaned before being used again. The industrial gas defogging method disclosed by the invention combines the glass ball expansion bed with the coalescer, large-sized fog droplets in industrial gas are separated in the initial adsorption process of the glass ball expansion bed, and small-sized fog droplets in the coalescer are coalesced, thereby effectively reducing the residual concentration of the fog droplet impurities to 30 ppm and improving the yield of target products.

Description

technical field [0001] The invention relates to an expanded bed of glass spheres and a method for adsorbing and purifying mist impurities in industrial gas by using the expanded bed of glass spheres combined with a coalescer. Background technique [0002] In the social production process of medicine, chemical industry, petrochemical, power generation, etc., such as pickling, electroplating, electrolysis, acid making, etc., sulfuric acid, hydrochloric acid, nitric acid, organic solvents and other substances will be used in the gas phase. Different liquid mist droplets are harmful to production and the environment, and it is necessary to try to remove them. Fog droplets are mainly formed due to the evaporation of the liquid surface and condensation with water. In addition, when a chemical reaction occurs, bubbles are generated, which float to the liquid surface and explode, and the droplets also come out; the mist droplets will contain many toxic and harmful substances. The s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/30B01D51/02
CPCB01D46/0036B01D46/30B01D51/02B01D2258/02
Inventor 孟庆曦解清杰周君立王勇孙洁苏洁邵启运王亮
Owner ZHENJIANG JIANGNAN CHEM
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