This equipment adopts a rotary drum structure with a special internal lifting plate design, which can make the fertilizer granules roll evenly in the drum, ensuring that the coating agent is uniformly coated on the surface of each granule. The coating uniformity rate is over 95%, and the coating film has good adhesion and is not easy to fall off. It is equipped with a precise temperature control system and a spraying system. The temperature can be adjusted between 40℃ and 120℃ according to the type of coating agent, and the spraying amount of the coating agent can be accurately controlled to meet the coating requirements of different fertilizers. The equipment has a high degree of automation, with automatic feeding, spraying, drying, and discharging functions, which can realize continuous production. The inner wall of the drum is made of anti-sticking material, which can prevent the fertilizer granules from sticking to the wall and ensure the smooth progress of the coating process.
The main body of the coating machine is made of 304 stainless steel, which has good corrosion resistance and can resist the corrosion of coating agents and fertilizers. The diameter of the rotary drum is 800 mm to 3000 mm, and the length is 1500 mm to 8000 mm. The rotating speed of the drum is 5 r/min to 30 r/min, which can be adjusted steplessly. The motor power is 2.2 kW to 30 kW, and the production capacity is 0.3 t/h to 30 t/h. The temperature control range is 40℃ - 120℃, and the temperature control accuracy is ±1℃. The spraying system is equipped with a pneumatic nozzle, and the spraying pressure is 0.2 MPa to 0.8 MPa. The overall dimension of the equipment is 2500×1200×2000 mm to 9000×3500×4000 mm, and the weight is 800 kg to 15000 kg. It complies with the industry standards for controlled-release fertilizer equipment and has passed ISO9001 and SGS certifications.
This coating machine is widely used in the production of controlled-release and slow-release fertilizers in fertilizer enterprises, and can coat various granular fertilizers such as urea, compound fertilizers, and organic fertilizers. The coated controlled-release fertilizers are suitable for the planting of various crops, especially for cash crops with long growth cycles such as fruit trees, cotton, tobacco, and vegetables, as well as for field crops such as corn and wheat. The slow-release film can control the release of nutrients according to the growth needs of crops, avoid the phenomenon of seedling burning caused by excessive initial fertilizer concentration, and reduce the number of fertilizations, saving labor costs. In addition, the equipment can also be used for coating pesticides, herbicides, and other functional ingredients on fertilizer granules to produce multi-functional fertilizers with both fertilizer efficiency and pesticide effect.
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