Attrezzature per la lavorazione dei fertilizzanti

The stages that decide whether the line works

In a fertilizer plant the granulator gets the attention, but the machines around it decide the result. A granulator fed with material that has not been crushed below 3 mm produces rough, weak pellets no matter how it is set. A mixer that leaves the batch uneven produces bags whose analysis does not match the label. And a dryer that delivers pellets at 18% moisture instead of 12% produces stock that cakes in the warehouse within a month.

These processing stages are also where most of the running cost sits, because crushing and drying consume far more power than granulation. Sizing them correctly — rather than oversizing for safety — is the main lever on the energy cost per tonne of finished fertilizer.

Processing equipment by function

Horizontal mixer machine

Single-shaft, double-shaft and traditional horizontal mixers for blending compost with binders, additives and chemical nutrients evenly.

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Macchina miscelatrice per granuli

Precision blending of finished fertilizer granules for BB fertilizer production, with accurate dosing and gentle mixing.

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Fertilizer crusher

Vertical, horizontal, chain and semi-wet crushers for compost, urea and chemical raw materials, reducing material below 3 mm.

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Cage mill crusher

Impact-breaking cage mills for compound fertilizer materials, with 10 t/h class capacity and dust-controlled operation.

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Rotary dryer machine

Drying and cooling to bring pellets to 12–14% moisture, plus the dust-removal and packing stages that follow.

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Where each machine sits in the line

Stage	Machine	Purpose	Typical specification
Frantumazione	Fertilizer crusher, cage mill	Reduce compost and chemical lumps below 3 mm	1–20 t/h, 7.5–45 kW
Batching	Automatic batching system	Weigh each raw material for an accurate formula	3–6 ingredients, ±0.5% accuracy
Miscelazione	Horizontal mixer, granules mixer	Blend nutrients, binder and additives evenly	3–5 min cycle, 1–20 t/h
Essiccazione	Rotary dryer machine	Reduce pellet moisture from 30% to 12–14%	1–30 t/ora, 7.5–75 kW
Cooling	Rotary cooler	Stabilise the pellet and prevent caking	Matched to dryer capacity
Screening	Rotary screener	Separate correct pellets, recycle oversize and fines	1–30 t/ora
Coating	Drum coater	Apply anti-caking film or microbial inoculant	1–20 t/h
Imballaggio	Automatic packing machine	Weigh and seal 25/40/50 kg bags or jumbo bags	200–600 bags/hour

Processing equipment FAQ

Why does the feed particle size matter so much?

Because pellets are built from particles. If the feed contains lumps above 3 mm the binder cannot wet them evenly, the pellet forms a rough surface, and it breaks during drying and handling. Crushing is the cheapest way to improve pellet quality in any fertilizer line.

How long should a batch take to mix?

A horizontal or double-shaft mixer normally needs a 3–5 minute cycle to reach uniformity: 1–2 minutes of loading, 2–3 minutes of mixing and 1 minute of discharge. Mixing much longer does not improve uniformity and reduces plant throughput.

What moisture should fertilizer be dried to?

12–14% for organic fertilizer pellets and below 2% for chemical compound fertilizer where the product is very hygroscopic. Above 15% there is enough free water for mould and caking during storage; below 10% organic pellets become brittle and produce dust.

Can processing equipment be shared between an organic and a compound line?

SÌ, and it is a common design. The batching, miscelazione, screening, coating and packing sections are shared, while the crusher and the granulator may be duplicated because organic compost and chemical salts need different machine types.

Equipment gallery

Fotografato nel nostro laboratorio di Xingyang e presso i siti dei clienti. Senza filigrana, nessun numero di telefono.

Fertilizer Processing Equipment — Shunxin Processing Equipment photo 1

Fertilizer Processing Equipment — Shunxin Processing Equipment photo 2

Fertilizer Processing Equipment — Shunxin Processing Equipment photo 3

Fertilizer Processing Equipment — Shunxin Processing Equipment photo 4

Fertilizer Processing Equipment — Shunxin Processing Equipment photo 5

Domande frequenti

How much of a fertilizer plant's cost is processing equipment?

In a wet granulation line the dryer, cooler and dust-collection system together typically account for a large share of both capital and running cost, because drying is the most energy-intensive stage. In a dry granulation or BB line, processing equipment is a much smaller proportion.

Do I need a dust collector?

Yes in almost all cases. Crushers, screeners and packing stations all generate dust, and local regulations usually require capture at source. A dust-collection system also recovers product that would otherwise be lost, so it partly pays for itself.

What is the right way to size a dryer?

From the water that has to be evaporated, not from the tonnage alone. We calculate the incoming and target moisture, the tonnage per hour, the inlet and outlet air temperatures and the fuel type, then select the drum diameter, length and burner accordingly.

Can these machines be supplied separately?

SÌ. Customers upgrading an existing plant regularly buy just a crusher, miscelatore, dryer or screener. We size the unit to match your existing equipment and confirm the connection dimensions before manufacture.

The stages that decide whether the line works

Processing equipment by function

Where each machine sits in the line

Processing equipment FAQ

Equipment gallery

Domande frequenti

Attrezzature e soluzioni correlate