What is the Single pulse jet filter?
The single pulse jet filter is a small baghouse dust collector that employs high-pressure (0.5 to 0.7 MPa) large-flow pulse valves for sequential filter bag cleaning. This pulse jet filter has two cleaning methods: online pulse cleaning and offline pulse cleaning.
Working Principle of the Single pulse jet filter
Dust-laden air enters the hopper or the filter bag chamber through the inlet. The contaminated air passes through the filter bags, where dust is filtered out, allowing clean air to enter the clean air chamber and exit through the outlet via a fan. Dust accumulates on the outer surface of the filter bags, increasing resistance. To ensure the equipment operates without exceeding 1200 Pa of resistance, regular dust cleaning is required.
Cleaning is controlled by a program controller that sequentially activates pulse valves, releasing compressed air (0.5 to 0.7 MPa) through the spray nozzle (referred to as primary air). This primary air induces several times its volume of surrounding air (referred to as secondary air) into the filter bag, expanding rapidly in an instant. The reverse airflow dislodges the dust, achieving the cleaning purpose.
Performance Model | HMC-32 | HMC-48 | HMC-64 | HMC-80 | HMC-96 | HMC-112 | |
Processing air volume(m3/h) | 1500-2100 | 2100-3200 | 2900-4300 | 4000-6000 | 5200-7000 | 6000-9000 | |
Total filter area(m2) | 24 | 36 | 48 | 60 | 72 | 84 | |
Filter wind speed(m/min) | 1.00-1.50 | 1.00-1.50 | 1.00-1.50 | 1.10-1.70 | 1.20-1.70 | 1.20-1.80 | |
Number of filter bags (bars) | 32 | 48 | 64 | 80 | 96 | 112 | |
Inlet gas temperature (℃) | ≤120℃ | ||||||
Dust collector resistance (Pa) | ≤1200 | ||||||
Import dust concentration (g/m3) | <200 | ||||||
Import emission concentration (mg/m3) | ≤100 | ||||||
Compressed air for cleaning | Pressure(Pa) | 5~7×10⁵ | |||||
Air consumption (m3/min) | 0.10 | 0.14 | 0.20 | 0.24 | 0.29 | 0.34 | |
Withstand negative pressure (Pa) | 5000 | ||||||
Pulse valve quantity (pieces) | 4 | 6 | 8 | 10 | 12 | 14 | |
Fan motor power (KW) | 1.5 | 3.0 | 3.0 | 5.5 | 5.5 | 7.5 | |
Weight(kg) | Type A (with ash hopper) | 1350 | 1620 | 1850 | 2360 | 2800 | 3200 |
Type B (without ash hopper) | 1220 | 1470 | 1670 | 2150 | 2540 | 2880 | |
Advantages of the Single Pulse Jet Filter
The single pulse jet filter has strong dust cleaning capability, low emissions concentration, low leakage rate, low energy consumption, low steel consumption, small footprint, stable operation, and good economic benefits. It is suitable for the purification of dust-laden gases and material recovery in industries such as metallurgy, building materials, cement, machinery, chemicals, power, and light industry.
The single pulse jet filter can achieve the purpose of dust cleaning with one blowing, thus extending the cleaning cycle and reducing cleaning energy consumption. The consumption of compressed air can be greatly reduced. Meanwhile, the fatigue level of the filter bag and pulse valve is also correspondingly reduced, thereby greatly extending the lifespan of the filter bag and valve components.
The filter bag’s opening uses an elastic expansion ring, which has good sealing performance and is firm. The filter bag support frame adopts a multi-angular shape, which reduces the friction between the bag and the frame, extends the bag’s lifespan, and facilitates bag removal.
The top bag extraction method is adopted; when changing bags, the skeleton is pulled out, and the dirty bag is placed into the lower ash hopper of the housing, where it can be removed through the manhole, thus improving the bag changing operation conditions.
The single pulse jet filter features a gas-tight design with good sealing performance. The inspection doors use high-quality sealing materials, and during the manufacturing process, kerosene is used for leak detection, resulting in a very low leakage rate.
The layout of the inlet and outlet ducts is compact, resulting in low air resistance.
Application of the Single pulse jet filter
The single pulse jet filter, designed specifically for handling small air volumes and moderate temperatures, is an excellent piece of equipment that demonstrates outstanding performance and wide application value across various industrial fields. Whether it’s controlling dust during coal mining, purifying flue gas in steel smelting, recovering fly ash in the power industry, or capturing fine particles in chemical production, the single-unit pulse bag dust collector can serve as an indispensable environmental protector in these areas, thanks to its efficient and stable dust removal capabilities.
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