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An application is a job, not a machine.
Each page here takes one job in one industry, explains what makes it difficult, and shows which equipment combinations solve it.
127 published
Application
In pharmaceutical production the blend is only as good as what reaches the press.
A blend that passes in the mixer can fail at the tablet if it segregates on the way, and more mixing is as likely to cause that as to cure it.
Application
Dry blending and separate feeding solve the same problem in different places.
A PVC dry blend absorbs additives into the resin before extrusion; separate gravimetric feeding keeps flexibility for recipe changes.
Application
Powder sampling is the controlled collection of material for testing.
The sampling plan determines whether the result can represent the lot or process.
Application
Grain and feed plants route one intake line to many bins, and the diverter decides whether the right product reaches the right bin.
Foreign objects jam the junction, and a jammed diverter sends material where nobody intended.
Application
In battery production the diverter is a containment component that happens to change direction.
Carryover between chemistries is a quality failure and a leak at the junction is an exposure event.
Application
In a cement or lime plant the diverter sends one conveying line to several silos, and the junction is where the abrasion concentrates.
Wear here does not announce itself; it appears as material reaching the wrong silo or as a conveying line that no longer holds pressure.
Application
One source feeding several reactors or silos is normal in chemical plants, and the junction is where products meet.
Residue left at a diverter after a changeover is the most common route for cross-contamination in an otherwise closed system.
Application
A power plant routes ash from several collectors to several silos, and the diverters run continuously in abrasive service.
Aerated ash finds every leak path, and a worn junction quietly fills a silo nobody selected.
Application
In a food plant the diverter is an allergen control point.
Whatever stays in the junction goes into the next product, and that is as true for a sealed pressure line as for an open chute.
Application
In mineral plants the diverter takes the full abrasive stream at the point where it changes direction.
Wear concentrates there, and the liner is the part that decides the interval between shutdowns.
Application
Pet food lines route finished kibble to several packers and premixes to several mixers, and the junction sees both.
Fat builds up where the stream changes direction, and that build-up is both a hygiene finding and a flow problem.
Application
A plastics plant routes many grades through few lines, so the diverter is where grades meet.
A pellet left in the junction appears in the next product as a colour speck or a property deviation.
Application
Discharge continuously through a rotary valve or double-flap gate — the same device that acts as the explosion barrier — into a sealed drum interface: clamped covers with flexible sleeves, or continuous-liner systems that are crimped and cut at every change.
The collected dust is the finest, most concentrated fraction on site; the drum change is where containment is either engineered or lost.
Application
On a fuel bin the gate is part of the fire and entry safety case, not just a flow control.
Ash erodes the seat, biomass fibre wedges the blade, and anyone entering the bin depends on that gate being genuinely closed.
Application
A gate on a pellet silo is simple until a pellet gets caught in the seat.
A trapped pellet keeps the gate from closing fully, which matters most when the gate is the isolation point for work below.
Application
Under a cement or lime silo the gate faces a powder that behaves like a liquid when aerated and like rock when it is not.
Aerated powder finds every gap in a closed gate, and consolidated powder resists the blade that has to cut through it.
Application
Under a mineral silo the gate has to close against a column that is heavy, abrasive and sometimes consolidated.
The force required is far higher than the empty-silo figure, and the blade is a wear part from the first operation.
Application
The gate under a mixer or coater has to empty the batch completely and then be cleanable.
Fat and fines collect at the seat, and what stays behind is both a hygiene finding and the first ingredient of the next recipe.
Application
The gate under a chemical silo exists so that someone can open the equipment below it.
That makes it a safety component, and a gate that cannot be proven closed is not one.
Application
Vacuum conveying moves battery powders through an enclosed line, which helps with dust and contamination control — but the enclosure alone proves nothing.
The design has to match the actual powder: its moisture sensitivity, electrostatic behavior, cohesion and quality limits, verified with representative material before the duty is accepted.
Application
Vacuum conveying moves powder from a bulk bag through a pickup point into a receiver that discharges to the process.
The transfer works as a system: bag discharge sets the feed, the line moves it, and the receiver sequence protects the batch.
Application
In battery production a valve has to keep the powder in and everything else out.
The materials carry real occupational exposure limits, and metallic contamination from a worn valve ruins the electrochemical value of the batch.
Application
In a cement or lime plant the valve is a wear part, and the only question is how long it lasts and how quickly it can be changed.
Fine mineral powders open rotor clearances steadily, and the first symptom is not a leak you can hear but a conveying line that no longer reaches its rate.
Application
In chemical plants the valve is rarely chosen for throughput; it is chosen for what the powder does to it and for what it must not let past.
Corrosive and hygroscopic solids attack seats and clearances, and most lines cross a pressure boundary somewhere between the silo and the reactor.
Nobody buys a rotary valve. They buy a way to get flour out of a silo without losing air pressure.
Equipment catalogues are organised by machine, because that is how machines are built and sold. Plants are organised by job, because that is how problems arrive. Somebody has to unload a tanker, feed a press, keep a baghouse from blinding or stop dust escaping at a transfer point.
This section follows the second order. Each page names a job, in a named industry, and works from the duty to the equipment.
A conveying line sized for the average rate fails at the peak. A feeder sized for the nominal recipe cannot hold tolerance at the smallest addition. The first question on any application page is therefore the range, not the figure: the lowest rate, the highest rate, and how often each occurs.
Most jobs need a chain, and the weakest link decides the result. A vacuum receiver that cannot clean its filter will starve the feeder below it, whatever the feeder is capable of. A silo that bridges makes the discharge equipment irrelevant.
Where a page recommends equipment, it names the interface as well: what has to be true upstream and downstream for the machine to perform as specified.
The same job has different constraints in different industries. Bulk bag discharge in a food plant has to be cleanable and allergen-segregated. In a cement works, the same job is about wear and dust. In pharmaceuticals, it is about containment and validation.
That is why the pages are written by job and industry together, rather than by job alone.
If you know the job, start here and follow the links into the technologies it uses. If you know the material, start from the material pages and arrive at the same place from the other side. If you know the machine, the technology pages are the way in.
Every application page carries the same structure: the problem as operators describe it, the result a good design delivers, how the job is normally arranged, the factors that decide the selection, and the failure modes that show up when one of them was missed.
They do not size equipment. Sizing needs measured material properties, the real duty cycle and the plant layout, and it belongs with the supplier who will stand behind the result.
What they do is shorten the distance between a problem and the right question. Most bad installations are not bad machines; they are machines selected against the wrong duty, or installed without the condition that made them work in the reference plant.
Most arguments between a plant and a supplier come from a duty that was never written down properly. Five lines prevent them.
Dilute phase conveying carries material suspended in air and needs a velocity above the saltation point, which for most powders puts it in the range of roughly fifteen to thirty metres per second. Dense phase moves material as slugs at a fraction of that, typically single digits.
The difference is not a preference. High velocity breaks fragile product and erodes bends; low velocity needs more pressure and a vessel rather than a blower. Fragile or abrasive material pushes the choice towards dense phase, long distances and high rates towards dilute.
A volumetric feeder meters a volume and assumes a density. A gravimetric feeder weighs, and therefore holds tolerance when the density changes. Wherever the recipe tolerance is tighter than the density variation of the material, the question is already answered.
Capture happens at the source or it does not happen. Extraction volume follows the open area and the face velocity needed to hold dust in, not the size of the machine, and a hood that is too far away cannot be fixed with a bigger fan.
Across every job on this site, the same four causes account for most of what goes wrong after commissioning.
None of these is exotic, and all four are cheap to prevent at the specification stage and expensive to fix afterwards. Each application page names the ones that apply to that job.
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