Solutions · Mineral Filler Storage
Barium sulfate is a very heavy mineral filler, dolomite a hard, fine mineral powder. Both dust, can bridge, and must reach dosing in the right amount. PW Silo Systems designs aluminum and stainless steel silos for barium sulfate and dolomite with you – with mass-flow discharge, discharge aids, and dust collection.
Barium Sulfate & Dolomite Storage at a Glance
A barium sulfate silo stores barium sulfate close to production – for paints and coatings, plastics, rubber, or other compounds. A dolomite silo stores ground dolomite for glass, building materials, ceramics, fillers, or other industrial processes. Both feed the mineral in a controlled way to dosing, weighing, and mixing.
Barium sulfate has a very high density, which affects silo structure, filling, and discharge. Dolomite is hard and wears the outlet and conveying equipment. Fine grades of both dust and can bridge. Silo geometry, discharge aids, and dust collection are therefore designed together with you for your mineral and your site.
Why Heavy Mineral Fillers Are Demanding
Weight, abrasion, fine particles, and dust decide whether a mineral filler silo runs reliably.
Barium sulfate is a very heavy mineral. The silo, its support structure, and the discharge equipment must be designed for the weight of the full silo.
Dolomite and other hard minerals wear the outlet, discharge equipment, and conveying lines.
Fine mineral powders compact under their own weight and build bridges or narrow flow channels above the outlet.
During pneumatic filling and conveying, fine mineral dust spreads quickly and settles on equipment and surroundings.
Particle size and whiteness can vary from delivery to delivery – and show up in the coating or compound.
Barium sulfate, dolomite, calcium carbonate, and other fillers must not be mixed by accident.
Silo Materials
We build silos exclusively in aluminum and stainless steel. Carbon steel is not an option for us: its coating is the only protection against corrosion – and flaking coating or rust can end up in a white filler.
Which of our two materials fits your barium sulfate or dolomite silo depends on the product, its abrasiveness, your process, and your site. We select the material and the design with you.
Your Mineral Filler Silo System
Silo, discharge, blending, filtration, and monitoring are engineered as one system. That means fewer interfaces for your team and components that are designed to work together.
Storage
Concentric mass-flow discharge without asymmetric flow zones – as standard, site-assembled, indoor, or multi-compartment silos.
Learn moreBlending
Gravity blending and homogenizing with four technologies, including PW ConeBlend with a hopper that is quick to clean.
Learn moreDischarge
Air fluidization for uniform discharge of poorly flowing products – prevents bridging and can be retrofitted to existing silos.
Learn moreDischarge
Vibration from unbalanced motors breaks up cohesive forces, resolves caking, and keeps the outlet clear.
Learn moreFiltration
Dust separation during pneumatic filling and conveying – sized for fine powders.
Learn moreMonitoring
Level measurement for reliable monitoring of the silo content – so you know when to reorder.
Learn moreHeavy & Hard Mineral Fillers
Products marked “Tested in our lab” are on our list of bulk materials. The others we review with you based on your material data before designing the silo.
Tested in our lab
Barium sulfate, BaSO₄
Barium sulfate is on our list of bulk materials tested in our lab. Silo structure and discharge are designed for its high density.
Tested in our lab
Dolomite, ground dolomite, dolomitic limestone
Dolomite is on our tested list. Its hardness is considered at the outlet and in conveying.
Tested in our lab
Calcium carbonate, ground calcium carbonate, GCC
Calcium carbonate is on our tested list. Discharge aids are planned for fine, cohesive grades.
Tested in our lab
Chalk, whiting
Chalk is on our tested list. Silo and discharge are designed for its fine particles.
Review with us
Barite, baryte, ground barite
Ground barite is used in drilling fluids and as a weighting material. We review your product data with you before designing the silo.
Review with us
Calcined dolomite, dolime, burnt dolomite
Calcined dolomite reacts with moisture and has specific storage requirements. We review them with you.
Also tested in our lab:
Send us your material data and we will review the right solution with you:
Mineral Check
Type in your mineral or any other bulk material to see whether it has already been tested in our lab. The list covers 287 bulk materials.
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Service in the U.S.
With more than 40 years of experience in silo engineering, we support your barium sulfate or dolomite silo project from the first design discussion to commissioning. We deliver to every U.S. state and install with our own qualified personnel.
FAQ
Answers to the questions plant managers, engineers, and buyers ask most often about storing barium sulfate, dolomite, and other heavy mineral fillers in silos.
Dry mineral fillers can be stored in a properly designed silo. These products are on our list of bulk materials tested in our lab:
Barite, calcined dolomite, and other minerals we review with you based on your material data.
Barium sulfate has a very high density. The weight of the full silo affects the silo structure, the foundation, and the discharge equipment. We design silo size, structure, and discharge with you for the bulk density of your product.
Dolomite is a hard mineral. Wear at the outlet, in discharge equipment, and in conveying is considered in the design – we review the right solution with you for your grade and your throughput.
Integrated filters and PW FilterLine dust collectors separate dust during pneumatic filling and conveying. Filter size and venting are matched to your filling rate and your product.
In mass flow, the entire silo content moves downward when material is discharged – not just a channel in the center. Your mineral fillers leaves the silo in the order it came in (first in, first out), and no product is left behind in dead zones. Our PW StoreLine silos are designed for concentric mass-flow discharge without asymmetric flow zones.
We build silos exclusively in aluminum and stainless steel – never in coated carbon steel, so no flaking coating or rust can contaminate your filler. Which of our two materials fits depends on the product, its abrasiveness, your process, and your site. We select it with you.
The right size depends on your daily consumption, delivery intervals, the number of products, and the space available at your site. PW StoreLine silos are available in a wide range of sizes and diameters, and silos too large for road transport are assembled on site. We size the system with you – without oversized investment.
Yes. We deliver to every U.S. state and support your project with silo transport, field assembly, silo installation and supervision, and site relocation of existing systems.
Very likely. Our silo systems are designed for nearly all free-flowing, granular, and powdered bulk solids. Send us your material details – particle size, bulk density, moisture, and how the product is filled and discharged – and we will review the right storage solution with you.
Tell us about your products, required storage capacity, how the silo is filled and discharged, and your site conditions. Based on this, we work out the material, silo type, and configuration with you and send you a detailed quote.
