I mentioned previously that we were disappointed to discover that this bag house had been used in some kind of a stone crushing operation. We had hoped that the bags, which have a reputation for lasting quite a long time and can be washed and repaired, would be useable. But they are caked heavy with talcum powder fine stone dust. The equipment dealer is selling us replacement bags at wholesale cost, but we were concerned about the labor involved with exchanging 124 bags. We were also concerned that having the bag house transported on it’s side may have bent or damaged the bag cages.
Here you can see the bottom of the bags, with several removed
It turns out that our bag house cages are not screwed into place as previously thought (and feared that the hardware would be rusted). Rather, this system uses a lip in the bag to snap into the plate hole, and then when the cage is inserted, the bag is pressed and held into position.
Here’s a detailed view of the double lip on the bag
Here’s a detail of the cages, bottom is closed off, and top has funnel shaped air baffle
And here’s the growing stack of cages, which appear to be made from galvanized metal wire
We used a man lift on a fork truck to get up on top of the bag house and into the access door for a look see yesterday. The upper (clean air) section is in pretty good shape with just a small amount of preservation needed.
The reverse air cleaning mechanism is robustly constructed and in good condition. I’ll try to post a pick of that soon.
If you ever get into a project like this, make sure you know exactly what materials the system was being used for. While I believe we will be fully functional, there is the real likely hood that some of the baffles and walls exposed to the high velocity dirty air are abraded thin by the stone dust.
-- Pine is fine, but Oak's no joke!