LCM-D/G type long bag pulse bag dust collector

The LCM-D/G type long bag pulse bag dust collector is a new type of bag filter developed on the basis of conventional short bag pulse dust collectors. It not only combines the advantages of chamber back blowing and pulse blowing for dust cleaning, but also extends the filter bag, fully utilizing the role of compressed air blowing for dust cleaning. Overcoming the disadvantages of low intensity of chamber back blowing and simultaneous pulse blowing and dust filtration, it prevents dust reattachment and loss of control, thereby improving filtration speed, saving dust cleaning energy consumption, and extending the life of filter bags. The electrical control of the dust collector adopts a PLC programmable controller.

The LCM-D/G type long bag pulse bag dust collector adopts a PLC control system. Depending on the processing technology, pressure difference control and timing control can be selected for back blowing and dust cleaning. The pressure difference control mechanism is based on the resistance value of the dust collector to open and close the reverse blowing process. When the resistance of the dust collector reaches the preset value for dust cleaning start-up, usually 1200-1500Pa, a control signal for starting the reverse blowing cycle is sent out, and the dust collector repeats the process one by one; Dust removal - sedimentation - filtration; The cycle continues until the resistance of the dust collector decreases to the set lower limit of resistance, which is generally 1000Pa. The pressure difference control mechanism can keep the resistance of the dust collector within a certain range, ensuring optimal dust removal efficiency and low operating energy consumption.

The LCM-D/G type long bag pulse bag dust collector is mainly composed of an upper box, a middle box, an ash hopper, an inlet air equalizing pipe, a bracket, a filter bag and blowing device, an ash unloading device, etc. The dusty air enters the ash hoppers of each compartment from the inlet air equalizing pipe of the dust collector, and under the guidance of the ash hopper guide device, the large particle dust is separated and directly falls into the ash hopper, while the finer dust uniformly enters the middle box and is adsorbed on the surface of the filter bag. The clean air enters the upper box and is discharged into the atmosphere through various offline valves and exhaust pipes. As the filtration process progresses, the dust on the filter bag accumulates more and more. When the equipment resistance reaches the limited resistance value (usually set at 1500Pa), the cleaning device automatically closes the offline valve of one room according to the differential pressure setting value. Then, the electromagnetic pulse valve is opened according to the set program to stop air blowing. Compressed air is used to instantly blow the pressure increase inside the filter bag, shaking off the dust on the filter bag into the ash hopper and discharging it through the ash discharge valve.

Characteristics of LCM-D/G type long bag pulse bag dust collector:

1. The LCM-D/G type long bag pulse bag dust collector adopts the technology of dividing the room and stopping the air pulse blowing to clean the dust. The dust is cleaned with low emission concentration, low air leakage rate, low energy consumption, low steel consumption, small footprint, stable operation, and good economic benefits. Suitable for the purification of dusty gases and material recovery in metallurgy, building materials, cement, machinery, chemical, power, and light industry industries.

2. Due to the use of segmented air stop pulse spraying for dust cleaning, the cleaning cycle is extended and the energy consumption for dust cleaning is reduced, resulting in a significant decrease in compressed air consumption. At the same time, the fatigue level of the filter bag and pulse valve is correspondingly reduced, thereby doubling the service life of the filter bag and valve plate.

3. The maintenance and bag replacement can be carried out in separate rooms without stopping the system fan and under normal operating conditions of the system. The bag mouth of the dust collector bag adopts an elastic expansion ring, which has a strong seal. The filter bag keel adopts a polygonal shape, which reduces the friction between the bag and the keel, extends the life of the bag, and is easy to unload.

4. Adopting the upper bag extraction method, after removing the skeleton when replacing the dust removal bag, the dirty bag is put into the lower ash hopper of the box and removed from the manhole, improving the operating conditions for bag replacement.

5. The box adopts an airtight design with good sealing performance. The inspection door uses excellent sealing materials, and during the manufacturing process, kerosene is used for leak detection, resulting in a very low air leakage rate.

6. The LCM-D/G type long bag pulse bag dust collector has a compact layout of inlet and outlet air ducts and low airflow resistance.