LFEF type fiberglass bag filter

The LFEF type fiberglass bag filter adopts microcomputer control, chamber back blowing, timed and fixed resistance dust cleaning, temperature detection display and other measures, which enables the fiberglass bag filter to operate stably in the dust removal of mechanical shaft kiln exhaust gas. The chimney outlet emission concentration is lower than the specified 100mg/mn3 emission standard and can reach (＜ 50mg/mn3).

The main structural characteristics of LFEF fiberglass bag filter are:

a、 The upper opening of the filter bag has removed the spray pipe device, resulting in low equipment resistance and easy installation, maintenance, and bag replacement;

b、 Adopting side spraying in separate chambers, one pulse valve can simultaneously spray 16 dust removal filter bags. Reducing the number of pulse valves by nearly two-thirds compared to other pulse dust collectors;

c、 The ideal dust cleaning can be achieved with a low blowing pressure of only 120-180Kpa, and a low-pressure straight through valve structure is adopted. The service life of vulnerable parts exceeds two years;

d、 The inlet concentration can reach 100g/Nm3, with the primary settling effect of large particle dust, which can replace secondary dust removal;

e、 The filter bag cage can be divided into two forms: hard skeleton and spring skeleton, which can be adapted to various needs of different users;

f、 The top adopts a small liftable cover, which can be opened flexibly and freely under the premise of sealing.

The structural composition of LFEF fiberglass bag filter:

The LFEF type fiberglass bag filter consists of a dust containing gas inlet to a purified flue gas outlet, and the main structure is composed of an inlet pipeline, an inlet chamber, a bag chamber, an ash hopper, an ash discharge valve, an outlet pipeline, a reverse air blowing system, and an ash cleaning control system. The dust collector body is made of all steel structure and designed with anti thermal expansion mechanism measures. The outer shell is made of LBY type lightweight rock wool board double-layer insulation, and the outer surface is protected by #=0.5 galvanized sheet. It is installed using a new process of pulling rivets, and the flower board is formed by cold stamping, rolling and rolling, which increases strength and equipment quality.

The working principle of LFEF fiberglass bag filter:

The dusty flue gas enters the intake chamber from the upper part, and some coarse particles fall into the ash hopper due to inertia. During dust cleaning, the direction of the airflow is consistent with the direction of dust settling, preventing secondary dust flying. Moreover, because the intake chamber ensures uniform airflow distribution and no sudden changes in airflow velocity, the pressure drop in each bag chamber is balanced, which is beneficial for improving the service life of the filter bag. This type of fiberglass bag filter has its exhaust valve and blowback valve located at the exhaust pipe below. The dusty gas is sucked into the intake manifold by the exhaust fan; Enter the intake chamber through each intake manifold; Uniformly pass through the upper flower board; Then it flows into the filter bag, and a large amount of dust is trapped on the filter bag; Part of the dust directly passes through the lower flower board and falls into the ash hopper, while the airflow is purified through the filter bag. The purified airflow enters the induced draft fan through the exhaust valve and is discharged into the atmosphere.