DMC Series Pulse-Jet Unit Bag Dust Collector

Introduction

The DMC pulse-jet unit bag dust collector is a compact unit developed by our factory through the improvement and adaptation of advanced technologies found in similar domestic and international products. It utilizes a high-pressure (0.5–0.7 MPa), high-flow pulse valve system to clean filter bags sequentially via air jets. Key features include high cleaning energy and efficiency, compact size, lightweight construction, a simple and space-saving design, ease of installation, and convenient maintenance (external filtration type). It is widely used in dust purification systems across industries such as building materials, metallurgy, mining, chemicals, coal, and the processing of ultrafine non-metallic mineral powders.

Working Principle

Dust-laden gas enters the dust hopper through the inlet or the filter bag chamber via an open flange. The gas passes through the filter bags, where dust is captured, and the cleaned air enters the clean air chamber before being exhausted by a fan. As dust accumulates on the outer surface of the filter bags, the resistance of the dust collector rises. To maintain resistance below 1200 Pa and ensure continued operation, the accumulated dust must be removed periodically. Cleaning is triggered by a programmable controller that sequentially activates the pulse valves. Compressed air (0.5–0.7 MPa) is released from the blowpipe nozzles (primary air) and passes through a Venturi tube, inducing a volume of surrounding air (secondary air) several times larger than the primary air to enter the filter bag. This causes the bag to expand rapidly and momentarily, shaking off the dust through the reverse airflow effect.

Technical Specification