Cartridge dust collector

Stand-alone Cartridge Dust Collector Specifications

Calculation Formulas for Key Technologies of Cartridge Dust Collectors

1. Filtration Velocity (v)

Filtration velocity is the volume of gas passing through the effective filtration area of ​​a filter cartridge per unit time and is a core design parameter:
v = \frac{Q}{60 \times A}

- v: Filtration velocity (m/min), typically selected based on the dust properties (e.g., 1.0-2.0 m/min for dry, non-sticky dust, 0.5-1.0 m/min for sticky dust);
- Q: Processing air volume (m³/h);
- A: Total effective filtration area (m²).

2. Total Effective Filtration Area (A)

A = n \times A_1

- n: Number of filter cartridges;
- A_1: Effective filtration area of ​​a single filter cartridge (m²), calculated from the cartridge dimensions: A_1 = \pi \times D \times L (D is the cartridge diameter, m; L is the cartridge length, m).

3. Number of Filter Cartridges (n)

Derived from the air volume and filtration velocity:
n = \frac{Q}{60 \times v \times A_1}

4. Equipment Resistance (ΔP)

The total resistance of a cartridge dust collector is composed of the resistance of the filter media itself and the resistance of the dust layer. The empirical formula (estimated) is:
\Delta P = \Delta P_0 + \Delta P_d

- \Delta P_0: Clean filter cartridge resistance (Pa), typically 100-200 Pa;
- \Delta P_d: Dust layer resistance (Pa), which is related to dust layer thickness and filtration velocity. During operation, the total resistance is generally controlled between 1000-1500 Pa.

5. Pulse Injection Parameters (for pulse cleaning models)

- Injection Pressure: Typically 0.4-0.6 MPa (compressed air);
- Injection Time: 0.1-0.2 seconds per filter cartridge;
- Injection Cycle: Depending on the resistance setting, typically 30-120 seconds (automatically adjustable via a differential pressure controller).

The above formula should be adjusted based on actual operating conditions (such as dust concentration, particle size, and temperature) to ensure efficient and stable equipment operation.