1. According to the composition, fineness, viscosity, humidity, temperature and other characteristics of the powder, the water content of the powder is controlled at about 30-28%.
（1）The water content is too large, too many balls, the surface of the ball is very sticky, easy to block the screen surface;
（2）How to determine the volume of particle water in the production process of organic fertilizer equipment: the most simple and practical method - feel method: grab a ball from the disk granulator, the hand can be a ball, and the finger can be released. In this way, the particles are more, the yield is high, and it is not easy to plug the screen surface.
2. Strictly control the quality of various raw materials such as fertilizers in accordance with the formula of compound fertilizers.
（1）Raw material discharge, feed strictly prohibit the use of iron blocks, stones greater than 10mm, wood blocks greater than 10mm. The quality index of rice bran and rice sand is not much, which seriously affects the yield.
（2）The powder size used as a compound fertilizer is 70-90 mesh.
（3）Do a good job in technical training, improve the technical quality of workers and operational skills.
3. The working mechanism of the nozzle must be mastered when selecting the nozzle: according to the theory of fluid mechanics, it has been proved that the greater the pressure, the smaller the through hole, and the larger the droplet diffusion surface. Under the same pressure, the nozzle hole is small and the droplet density is small. The spray hole is large and the droplet density is large.
（1）The smaller (or larger) the feed droplet size, the lower (or higher) the yield.
（2）The denser (or thinner) the feed drop, the more (or less) the feed liquid, and the higher (or lower) the discharge volume.
（3）In general, B type spherical spiral or B1 type basic spiral nozzle is the best choice for disk feeder.
Good blade, uniform particle size beautiful, blade material must be 16m, the blade is divided into two before and after, there is no gap between the two blades.