Sulfur coating production line installed for Vietnamese clients

Sulfur coating production line installed for Vietnamese clients

The sulfur coated urea production line installed for Vietnamese customers is an inorganic slow-release fertilizer that uses sulfur as the main wrapping material to coat urea particles. It achieves continuous nitrogen release through microbial decomposition, and its characteristics mainly revolve around automation, precision, and adaptability. The installation of this equipment by the customer greatly improves production efficiency and product quality, creating greater value for the company.

The sulfur coated urea production line is a specialized equipment system used for producing sulfur coated urea (SCU). Its core process is to wrap molten sulfur on the surface of urea particles to form slow-release fertilizers. ‌
The production line usually includes the following key links:
Preheating treatment: Heat the urea particles to a certain temperature to facilitate the uniform adhesion of sulfur in the subsequent process. ‌
Molten sulfur spraying: After heating and melting the sulfur, it is evenly wrapped on the surface of preheated urea particles by spraying equipment to form a basic coating layer. ‌
Sealing and adjustment: Outside the sulfur layer, microcrystalline wax, polymer wax, etc. are usually applied as sealants, and modifiers such as silicon magnesium soil are added to form a multi-layer coating structure to precisely control the nutrient release rate. ‌
Drying and cooling: Dry and cool the coated particles to solidify the coating and ensure product stability. ‌
The nitrogen content of sulfur coated urea is generally between 32% -37%, and the sulfur content is about 10% -30%. This fertilizer achieves slow release of nitrogen through microbial decomposition of sulfur film, which can increase nitrogen utilization efficiency by 15% -20%, reduce fertilization frequency, and have the effects of supplementing sulfur elements and improving soil. ‌

Advantages of sulfur coated urea
Compared to ordinary urea, sulfur coated urea has the following advantages:

1. Reduce ammonia volatilization and improve fertilizer efficiency.

2. The controlled release effect is better, which can reduce the frequency of frequent fertilizer application.

3. Reduced environmental pollution and minimized nitrogen fertilizer losses.

Sulfur coated urea is a commonly used fertilizer, and the choice of coating material has a significant impact on the fertilizer’s effectiveness and environmental performance. Common coating materials include polysaccharides, fatty acids, proteins, etc. It has the advantages of reducing ammonia volatilization, good controlled release effect, and reducing environmental pollution, and is worthy of further promotion and use.