Composite pulse dust collector

1、 Introduction to composite pulse dust collector

Combined dust collector combines the working principles of cyclone dust collector and pulse bag-type dust collector, and uses the pre-dedusting function of cyclone dust collector to fully mix the dust-bearing air flow, pre-treat the dust particles and separate the coarse dust in advance. It not only effectively protects the dust removal equipment and reduces the wear of equipment parts, but also enables the pulse bag-type dust collector to give full play to its special features of precision filtration, achieve the dedusting and purification capacity, and achieve the dedusting effect of 99.99%.

Img alt="Composite pulse dust collector is installed at the customer's plant" src=“ https://www.zzphkj.com/uploads/allimg/200907/2-200ZG60052A1.webp Composite pulse bag-type dust collector equipment is installed in the customer's plant

2、 Performance characteristics of composite pulse dust collector

Composite dust collector adopts combined structure, with reasonable matching, compact structure, small floor area and low overall energy consumption;

The composite dust collector is equipped with a famous brand pulse valve blowing device, with good dust removal effect, low equipment operation failure and long service life;

The composite dust collector also adopts automatic electrical control system with high degree of automation, and a variety of ash removal methods are selected by customers;

The purification efficiency of composite dust collector is high, and the purification efficiency of 0.5 micron fine dust is up to 99.99%.

3、 Operating principle of composite pulse dust collector

The dusty flue gas first enters the cyclone dust collector cylinder through the openings set on both sides. Affected by the cylinder wall, the gas rotates from top to bottom. Under the action of centrifugal force, the dust particles are thrown to the outer wall and sink to the bottom ash hopper and discharged by the ash discharge valve for collection. As the rotating downward airflow is gradually converged to the center due to the influence of the cone shape, the airflow center will form the reverse airflow from bottom to top, which is called internal swirl. Due to centrifugal action, the internal circulation often contains only small particles of dust.

The internal cyclone carries fine dust into the main body of the pulse bag-type dust collector. Due to the sudden increase of the sectional area, the airflow is dispersed and the speed is reduced, part of the dust automatically settles to the ash hopper at the bottom of the dust collector under the action of its own gravity, and the finer dust is absorbed and blocked on the surface of the filter bag under the action of negative pressure. With the accumulation of dust on the surface of the filter bag, a dust layer is gradually formed to block the later dust together with the filter bag, improving the filtration effect and increasing the resistance of the dust collector.

When the internal resistance of the dust collector reaches the set limit value, the injection controller controls the electromagnetic pulse valve and opens the injection and blowing dust removal system. The regulated high speed compressed gas vibrates and swells the filter bag, forcing most of the dust on the surface of the filter bag to fall off and fall into the ash hopper below to be discharged and collected through the ash discharge valve. The residual thin dust layer continues to assist the filter bag for filtration, so that the purpose of continuous and automatic dust removal of the dust collector is realized.

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