Cement Dust
As far as your cement dust goes you will always have a problem unlees you filter the container with a set of filters of of some type as you are displacing atmosperic air with solids.
Save your money and invest what you would have in a new truck towards the suggestion below.
It would be simpler to blow the material into a large cyclone over a closed hopper/bin over the roll off container to slow the dust down while it is discharged via gravity service into the sealed container.
This would allow you to have a number of holes in the cover to dump material to maximise filling the container or have a (donkey dick), An automatic loading tube that retracts as it fills) as it is referred to in the trade. it allows for filling it with almost zero dust and eliminates needing a sealed container. ■
Dustless vacuum truck unloading?
This is in regards to a cement plant. We use a vacuum truck for dust cleanup. The types of materials are mostly fine dust (cement, clinker dust, etc.) This vacuum truck offloads into a open top roll away dumpster style container via dumping the hopper. As you can image this creates quite a bit of dusting into the atmosphere. The dumping station is located in a central region of the plant.
What I am looking at is purchasing a new vacuum truck, Guzzler/ACE, that has dense phase offloading via a flex hose. I will discharge this into a closed top roll away container. Does anyone have any experience with this that can offer some advice? The problem is finding the right kind of offloading container.
I do not want to use a vacuum box between the suction point and the vacuum truck, because I do not want to add to the setup time of moving around a vacuum box. I would like to keep a centralized dumping area. ■