Baghouse dye test for leak detection - 2

 

In a periodic test of a baghouse dust collection system, dye test for leak detection was done to the baghouse by following the test procedure.

The system collects wood dust, and the bags were installed 4 years ago. The air after the baghouse is recirculated back to the workshop to save energy, especially in winter.

The dye test easily found glowing spots on some bags adjacent to the tubesheet with the help of a black light wand (Figure 1&2) . These spots were thought to be caused by the bleed-through of the green dye powder; they were not indicators of broken bags. 

We put the dye test results in the comprehensive report for this periodic system test and explained our concerns to the customer. 

Figure 1 Glowing spots under black light on bags, image 1

Figure 2 Glowing spots under black light, image 2

Leak Test, Air Balancing, Trouble-shooting, and System Evaluation services by Airvate

• Dye test for bag/cartridge leak 

• Dust collection system and industrial ventilation system Testing and Air Balancing

• Technical services: field survey and dust collection system evaluation and trouble-shooting

• New system start-up

• Dust sample analysis

• Dust collector selection and sizing: baghouse, wet scrubber, cyclone, settling chamber, drop-out box, etc.