19. High-efficiency fiber mist eliminator
We have always been committed to the research and development and promotion of acid and environmental protection technologies. The developed zero-discharge wastewater technology, high-temperature cracking and recovery of refractory waste acid, high-arsenic ore treatment and arsenic recovery, and sulfur downstream product production technology have been widely used in the industry. The promotion and application of these technologies have enabled the project device to meet the strict national emission standards and also achieved the goal of energy saving and consumption reduction.
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Fiber mist eliminator in the production of sulfuric acid, mainly used in the drying tower and two-turn two-suction process of a suction tower and the final absorption tower, to protect the fan, heat exchanger, catalyst and protect the environment. High efficiency type and high speed type two.
The equipment commonly used for demisting includes electric demister, wire mesh and fiber demister. Wire mesh mist eliminators are widely used in chemical production plants because of their low investment, compact structure and easy installation. Wire mesh demister pair diameter greater3μmThe defogging efficiency of the mist particles is relatively high,And3μmThe removal efficiency of the following mist particles is not satisfactory. Although the electric mist eliminator has high mist removal efficiency for different particle sizes,However, due to high investment costs and operating costs,Its application is limited. Fiber mist eliminator is a device specially used to remove all kinds of mist particles in the air flow,Not only can remove the large particles in the air flow（ Diameter> 3μm) is also very effective for removing sub-particles.
Fiber mist eliminator mechanism
When the fiber defogger is workingIts fiber bed layer is mainly through.Inertial collision, direct interception, Brownian motion and electrostatic interaction mechanism to achieve the purpose of trapping fog particles.
（11) Inertial collision
diameter greater3μmThe fog particles have a large inertial force,The momentum causes it to break away from the airflow and hit the fiber directly.Arrested set;
（21) Direct Interception
diameter1～3μmThe fog grainalong the airflowstreamline motion,It is captured when it is close to the fiber;
（3）Brownian motion
Collisions between very small particles and gas molecules produce random motion, which may either follow the direction of the gas flow,It may also be opposite to or in the direction of airflow.Vertical. Brownian motion increases with the decrease of fog particles. Diameter0.1μmBrownian motion of fog particles is the diameter1μmof the fog grain5times,thus beingThe chances of fiber capture are greatly increased.
The trapping of fog particles by the fiber bed is the result of the simultaneous action of several mechanisms. Inertial collision requires a certain airflow speed to achieve a better trapping effect,For the two mechanisms of direct interception and Brownian motion, the airflow velocitythe lower,The better the effect.
Structure and performance of fiber mist eliminator
Fiber demisters consist of single or multiple defogging elements mounted on a plate in a container or trough. When the gas containing the mist particles level through the fiber bed,Fog particles through the above three defogging mechanismtrapped on individual fibers,and gradually agglomerate into large particles or liquid films,Under the action of the driving force of the airflowacross the fiber bed and along the bed'sThe inner surface drains the bed under the action of gravity.
There are two criteria to measure the performance of the fiber mist eliminator: one is the defogging efficiency of the fiber mist eliminator; the other is the bed resistance drop of the fiber mist eliminator. The fiber bed of the fiber mist eliminator is a collection of countless fibers,species of fiberfiber diameter, arrangement, packing density, bed thickness and structure are the main factors that determine the performance of defogging.
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19. High-efficiency fiber mist eliminator
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Yangzhou Jiaming Environmental Protection Technology Co., Ltd.
Address: Fangxiang Industrial Park, Hanjiang District, Yangzhou City, Jiangsu Province
Contact: Tang Jiafu13951439212
Contact: Wu Weimin13952058396
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