What granulation equipment is often used in organic fertilizer production
The organic fertilizer production line is generally equipped with disc granulator and agitator drum granulator. These two kinds of fertilizer granulating machines have favorable price, simple process and high output, which are deeply loved by users.
The pelletizing rate of organic fertilizer agitating drum granulator is higher than 95%. If the output is small, it can be dried after granulation and drying is avoided.
The drum granulator of organic fertilizer uses the high-speed rotating mechanical stirring force and the resulting aerodynamic force to continuously realize the mixing, granulation, spheroidization, densification and other processes of fine powder materials in the machine, so as to achieve the purpose of granulation. The particle shape is spherical, the sphericity is ≥ 0.7, the particle size is generally between 0.3-3 mm, and the granulation rate is ≥ 90%. The size of the particle diameter can be properly adjusted by the material mixing amount and the spindle speed. Generally, the lower the mixing amount, the higher the rotational speed, the smaller the particles, and vice versa. Application scope: This organic fertilizer granulation machine is especially suitable for granulation of light and fine powder materials. The finer the basic particles of fine powder materials are, the higher the sphericity of particles is, and the better the quality of pellets is. Typical application materials: chicken manure, pig manure, cow manure, charcoal, clay, kaolin, etc.
The disc granulator is composed of inclined pelletizing disc, driving device, disc inclination adjustment mechanism, frame, feeding pipe, feed liquid sprayer, scraper plate and other parts. The fertilizer granulator machine price varies according to specifications and types. The inclination angle of the disc granulator is generally adjusted in the range of 35-55 degrees, and the rotating speed is n = 10-18r / min. The main factors affecting the granulation of the disc granulator are disc direct, disc angle, disc edge height, rotating speed, material liquid spraying device, scraping plate position and so on. The inclination angle of the granulator is determined according to the natural angle of repose of the wetting powder before granulation, such as 36 degrees for potassium chloride, 31 degrees for diammonium phosphate and 32 degrees for calcium carbonate. When the inclination angle is less than the natural angle of repose, the material will adhere to the disc and rotate with the disc. As the inclination angle increases, the rotational speed increases, the residence time of materials becomes shorter, and the particle size of overflow particles becomes smaller. Therefore, it should be determined according to the specific conditions, which is generally 40-60 degrees, which can be adjusted by the angle adjusting hand wheel of the granulator.
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