Fluidizing Plate (Fluidizer)

Analysis of Fluidization Plate (Fluidization Disc) Technology

The fluidization plate (fluidization disc) is a critical component of dense-phase powder conveying systems, primarily installed at the bottom of injection tanks or pulverized coal bunkers. By uniformly mixing compressed air with powdered materials (such as coal powder), it creates a stable fluidized state, enabling efficient and long-distance transportation. Below is a detailed explanation of its core design features and working principles:

• Material: Made of 1Cr18Ni9Ti stainless steel plate (approximately 3mm thick), offering excellent high-temperature resistance (up to 800°C), corrosion resistance (suitable for harsh environments such as chemical and metallurgical industries), and high mechanical strength.
• Pore Structure:
  • Elongated Slits: Arranged in a cross-shaped pattern, with slits perpendicular to the central cross lines to ensure uniform airflow distribution.
  • Slit Parameters:
    • Gap: 0.5mm (controls airflow precision)
    • Length: 20mm
    • Spacing: 10mm (optimizes airflow permeability)
  • Chamfering Treatment: A 1×45° chamfer is applied to the lower edge of the slits, concentrating compressed air toward the center to enhance the suspension and fluidization of coal powder, improving conveying stability.

2. Core Functions and Advantages

• Efficient Fluidization: The precisely designed slit structure ensures uniform airflow penetration through the powder layer, forming a stable solid-gas two-phase flow and preventing localized accumulation or blockage.
• Energy Saving and Consumption Reduction: Optimized airflow distribution reduces compressed air consumption and lowers operational costs.
• Strong Adaptability:
  • Suitable for new injection systems or retrofitting existing systems.
  • Can be designed as fixed welded type (for long-term stable conditions) or removable type (bolted fastening) (for easy maintenance and replacement).

3. Application Scenarios

• Blast Furnace Pulverized Coal Injection Systems: Ensures stable transportation of coal powder to the blast furnace, improving combustion efficiency.
• Pneumatic Ash Conveying Systems: Used for fly ash transportation in power plants and chemical plants.
• Other Powder Conveying Systems: Such as dense-phase or dilute-phase conveying systems for cement, lime, mineral powder, etc.

4. Technical Optimization Directions

• Porosity Adjustment: Slit parameters can be customized based on different powder characteristics (particle size, density) to optimize fluidization effects.
• Wear-Resistant Coating: For high-wear conditions, a wear-resistant coating can be added to the stainless steel surface to extend service life.

For more detailed technical parameters (such as pressure-bearing capacity, flow rate calculations) or industry application cases, further discussion is available!