Hot Selling Bio Fertilizer Granulator Machine High Productivity Machine Die Pellet Mill Die From China
Hot Selling Bio Fertilizer Granulator Machine High Productivity Machine Die Pellet Mill Die From China
Fertilizer formula is mainly composed of inorganic fertilizer, organic fertilizer, mineral and so on. The inorganic fertilizer in compound fertilizer, such as urea is corrosive to the ring mold,the ring die hole and inner cone hole are weared severely by mineral ,so the material of the ring mold should be selected stainless steel X46Cr13. Compound fertilizer ring die aperture is generally large, range between 3.0-6.0mm, due to the large friction coefficient ,the hole is difficult to discharge, so the compression ratio is small, generally between 1:4-1:6. At the same time, because the compound fertilizer contains bacteria, the temperature can not exceed 50-60 degrees, otherwise the vaccine will be easily killed. Therefore, the compound fertilizer requires low granulation temperature, the ring mold thickness is general be thin. Due to the compound fertilizer wear seriously to the ring die hole, it is easy to blocking machine in production, and also seriously corrode the ring die, which directly affects the production efficiency and the service life of the ring die. Happy Mould use the special production process and composite surface treatment to improve the production efficiency and the final service life of the Fertilizer pellet mill die.
What is the opening hole rate of pellet mill die?
Pellet mill die opening rate = [(R/2)2×π×n] / ring die working area（The inner circumferential surface of the innercircle of the pellet die and the press roll extruded each other is the working face of the ring die）
R: hole size of ring die, n: total number holes of ring die
From this formula, we can understand that when the hole size is determined, the more holes in the ring die, the higher opening hole rate of the ring die.
What is a release hole?
A concentric hole with a diameter slightly larger than the pelleting hole and uniformly distributed on the outer circumferential surface of the pellet mill die.
Note: When the compression ratio multiplied by the aperture cannot reach the minimum design thickness of the ring die, the ring die thickness must be increased to meet the safety requirements of the ring die.The increased part of the ring die thickness must be processed into release holes.
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China Manufacture Granulator Ring Die