Screening machines for fertilizers

What is screening technology used for in fertilizer production?

Quality & environmental protection

Screening machines in fertilizer production make an important contribution to quality assurance. They also help to ensure that the legal requirements for fertilizers are met. They are therefore essentially used for

• Control screening and protective screening (impurities, lumps, adhesions)
• Dedusting of the fertilizer
• Classification by size
• used as granulate screening machines.

Design and equipment of fertilizer screening machines

Modular design for your application

Different types of screening machines and machine configurations can be used for screening fertilizers. These include, among others:

• Single-deck flip-flow screening machines
• Double-deck flip-flow screening machines
• Screening machines with wire mesh
• Dedusting screening machines
• Screening machines with special mesh or screen mats against abrasion
• Screen technology with cover
• Directly excited or linear vibrating screens

Optimized and adaptable to different pellet sizes

Classification of the fertilizer

As a manufacturer of screening machines, we build machines tailored to your application. It is usually possible to enable pre-planned product changes of the granulate sizes by adapting the screening machine.

One example of this is a flip-flow screening machine. Their screen mats can be quickly adjusted when the batch is changed.

For example, fertilizer granules with a grain size of 0-3 mm and 3-8 mm can be sieved in one batch. With a different type of fertilizer, for example, 0-2 mm, 2-6 mm and 6-9 mm. In this case, the sieve mats are simply changed accordingly. You can find a video on how this works at www.spaleck.de/videos.

Designed for high tonnages

Scalable production quantities

Our fertilizer screening machines are often designed for a high tonnage. The material is usually very demanding. It can be sticky, moist and also abrasive. Typical processing quantities are 100t/h or even 150t/h. Of course, we also realize smaller or larger machines with our plant engineering.

Precise separation of fertilizer

Application example: Lime fertilizer

With the help of SPALECK screening technology, the precise screening of unwanted fine dust and oversized particles from mineral lime fertilizers is child’s play. In this case, a flip-flow screen was used to maximize the quality of the end product.