In fertilizer production, we often consider various factors such as capacity, shape, and material moisture, which will affect the final selection of fertilizer equipment. Common organic fertilizer granulators include: roller extrusion granulator, drum granulator, disc granulator machine, new organic fertilizer granulator, flat die granulator, ring die granulator, fertilizer granulator machine price vary.
1. Twin-roll extrusion granulator: It adopts physical extrusion granulation method to granulate, and the investment is low. It does not require the addition of adhesives. The particle hardness is high. And the processing of particles is simple and convenient, without the three wastes. The disadvantage is that the water content is low when processing and producing fertilizers, and generally requires a water content of about 5%-10%. Twin roll extrusion granulator is commonly used in npk production line.
2. Organic fertilizer wet mixing granulator: adopts the way of stirring teeth rotating and cylinder wall friction granulation. The ball forming rate is as high as 95%. The hardness of the particles is good, and the moisture content of the prepared particles is generally 30% to 40%. When the output is small, the later granules can be dried naturally without drying equipment. The disadvantage is that when the annual output exceeds 30,000 tons, the production cost is not directly proportional to the energy consumption.
3. Disc granulator: The raw powder is uniformly wetted by atomized water in the twin-shaft mixer to form a ball core with a very uniform particle size, and then sent to the ball forming disc to form a ball. The tilt angle of the pan can be adjusted to control particle size. The disadvantage is that the dust is large and the particle strength is small. High moisture (close to 50% to 60%). Therefore, drying must be configured to enhance the hardness of the particles. The disc granulator can be used in both organic fertilizer production process and npk fertilizer production line.
4. New organic fertilizer granulator: On the basis of the wet mixing granulator, the barrel wall also rotates accordingly, which greatly improves the production capacity. The ball forming rate is as high as 97%, and the moisture requirement is 30% to 40%. The disadvantage is that the particles need to be screened, and the investment is relatively high. Suitable for large organic fertilizer production lines.