中文
Hazardous Dust

Open-Space Dust Explosion

The source of dust in open-space is mainly dust produced in workshops during production, fluidized bed and transportation processes.

In the sense of labor safety and hygiene, dust does harm to the health of site workers and seriously pollutes the working environment. High concentration of dust decreases the air quality; it brings health hazards to workers, but it also accelerates the wear of machine parts and decreases the life-span of machines and equipment. When falling onto electrical components, dust may damage insulation and cause accidents. The building structure will also suffer from corrosion and damage due to excessive dust deposits.

In terms of safety, due to the large space of the factory, the indoor dust is huge in scale and dispersed in distribution. The dust in the center may not be removed to the outside of the factory by the ventilation system in a timely manner; therefore, the large amount of accumulated dust may cause a risk of dust explosion when reaching the concentration limit. The usual explosion process includes the early phase, spreading, scale-up and the end of conflagration.

Preconditions to Dust Explosion

 Precaution & Prevention of Dust Explosion

 Control of Ignition Source
       -Application of Explosion-Proof Electric Devices and Tool


 Control of Oxygen Concentrations
      - Gas Inerting


 Dust Control

      A.On-line monitoring of the operation of dust removers 
      B.On-line monitoring of dust deposition in ventilation system
      C.On-line monitoring of dust concentration of the dispersing sites in open space

 

Challenges to Online Dust Monitoring

A.The relative fluidity of suspended particles is poor in open space, and dust movement is irregular (Brownian motion);
B.There is rapid dust concentration change at the dust emission site, which requires high sensitivity and accuracy of monitoring equipment;
C.The production conditions are quite different, different ventilation system and factory lay-out impose different requirements to dust monitoring;
D.The holistic dust monitoring solution is highly professional;
E.The domestic dust monitoring and management equipment is lagging behind the industry standards.

According to the monitoring characteristics of dust explosion industry and integrating its patent Open-Space Micro-charge Particle Detector, Tang'An Industry has developed ATB PreventSys Early-Warning Dust-Explosion System which is designed to assist our customer in solving a series of dust monitoring and explosion problems.


If you need to know specific application cases, please contact us.
GO BACK