Ceramic Multi-tube Cyclone Dust Collector for Flue Gas in Fluidized Bed Boilers

Fluidized Bed Boiler Flue Gas Ceramic Multi-Tube Cyclone Dust Collector

     The Fluidized Bed Boiler Flue Gas Ceramic Multi-Tube Cyclone Dust Collector is a high-efficiency dust removal device specifically designed for the flue gas characteristics of circulating fluidized bed boilers (fluidized bed boilers). Its core function is to achieve the separation of dust and flue gas through a multi-tube cyclone structure made of ceramic material. The following analysis is conducted from five dimensions: structural features, working principles, performance advantages, application scenarios, and optimization directions:

    I. Core Structural Features

1. Innovative Application of Ceramic Material
   • Cyclone tubes are manufactured using high-purity alumina ceramic or silicon carbide ceramic, featuring high-temperature resistance (withstand over 1000°C) and corrosion resistance (resistant to acid and alkali erosion), significantly extending the equipment lifespan to over 10 years, far exceeding traditional metal materials.
   • The ceramic surface smoothness reaches Ra0.2μm, reducing dust adhesion rates and minimizing clogging risks.
2. Modular Design with Multiple Tubes in Parallel
   • A single unit integrates 24-96 cyclone tubes, with each tube handling a gas flow of 500-2000 m³/h. The total processing capacity ranges from 10,000 to 300,000 m³/h, meeting the needs of boilers of various scales.
   • The modular structure supports online maintenance, allowing individual replacement of faulty tubes, improving maintenance efficiency by 40%.
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II. In-Depth Analysis of Working Principles

1. Enhanced Separation via Three-Dimensional Centrifugal Force Field
   • Flue gas enters the cyclone tube at a tangential velocity of 15-25 m/s, forming a three-dimensional rotational flow field under the action of spiral guide vanes, with centrifugal forces reaching 500-800 times the acceleration due to gravity.
   • Particles larger than 0.5μm are thrown toward the wall by centrifugal force and slide down the spiral groove into the ash hopper, increasing separation efficiency by 20%-30% compared to traditional cyclone dust collectors.
2. Multi-Stage Purification Synergy Mechanism
   • Pre-Dust Removal Stage: Removes over 80% of coarse particles, reducing wear on subsequent equipment.
   • Fine Dust Removal Stage: By optimizing the length-to-diameter ratio of the cyclone tubes (L/D=4-6), the separation efficiency for 0.5-10μm particles is enhanced to over 98%.
   • Airflow Uniform Distribution Technology: Utilizes a tapered intake chamber and guide cone to ensure the inlet velocity deviation of each cyclone tube is ≤5%, avoiding short-circuit flow.