Chemical blending, dilution, polymer preparation and activation, and slurry suspension all depend on keeping a batch moving. A solution left still separates, stratifies, or drops its solids to the tank floor; the result: batches that are inconsistent, incomplete, or unusable.
Solution tank agitation is typically achieved in one of three ways:
- Overhead mixers and rotating impellers.
- Recirculation loops pulling and returning solution.
- Air sparging for gaseous agitation from below.
Each blending option puts load somewhere. An overhead mixer hangs weight, torque, thrust, and a bending moment off the tank top. A recirculation loop requires structural penetrations in the wall, and air sparging can add additional pipe weight. A tank that was not built to carry the load can experience: a flexing top that cracks around the mount, a side bulkhead that works loose and tears out, a mount that deflects and pulls the mixer shaft out of alignment.
The fix is a tank built around the agitation it will run, with wall thickness, reinforcement, mounting, and penetrations to match the load. Protank builds custom blending and mixing tanks to your work specifications, in polypropylene through PVDF, built in-house, made in the USA, and delivered nationwide.
Send us your specs for a free quote from Protank’s fabrication team, or see what we build below.
Custom Blending & Mixing Tanks Built to Spec
Protank builds custom blending and mixing tanks made to your specifications and agitation method. Commonly requested by chemical formulators and blenders, coatings and adhesives producers, fertilizer and ag chemical operations, water treatment plants running polymer and dry chemical make-down, and biofuel and distillery operations. Backed by 20+ years of custom tank fabrication experience.
Tanks are made-to-order, with the customization options to match the solution being blended, specific gravity, operating temperature, batch volume, and the mixing equipment to be installed. Wall thickness and structural reinforcement are available when needed per mixer load, solution SG, and thermal load stress. Mounting setups are built to your equipment specifics. Internal baffles, recirculation penetrations, and air sparging lines are fabricated in place rather than retrofitted. Single blending tanks, activation and holding pairs, and multi tank batch setups are all options. Every tank is hydrostatically leak tested before it ships and arrives ready to integrate.
How Blending & Mixing Tanks Are Used
A mixing tank completes the route from chemicals received to the solution the process actually uses. When concentrate arrives in IBC totes (product link), drums, or bulk, and chemicals arrive in bags or supersacks, they don’t go into processes as delivered. It gets added to a tank, brought to strength or mixed to spec, and then held or transferred to the point of use.
Most blending runs as a single tank or as a blend-and-hold pair. Batches are usually made in one vessel and drawn from another so mixing and dispensing do not compete for the same tank.
Protank’s specialty is the container and the setup built into it: the tank, its size, shape, slope and drainage, sumps, ports, bulkheads, gaskets, and valves, mixer mounting and structural reinforcement, welded internal baffles, recirculation and sparge penetrations, monitoring add-ons, and secondary containment. Mixers, blowers, pumps, controllers, and instrumentation are typically client supplied if beyond our catalog. Bring the equipment and its load and connection requirements, and Protank builds the tank to carry them.
We do not provide stamped engineering calculations. We build from your drawings, STEP files, datasheets, and dimensional specifications, and reinforce to the load they describe. Where a detail is unspecified, we can recommend an approach for your approval before proceeding. (See also: Custom Day Tanks & Dosing Tanks.)
