Mini Dry Type Compound Fertilizer Granulation Line
The reason why we call this line as dry type or non-drying compound fertilizer production line is because roll extrusion technology is adopted. In granulation process,double roller extrusion granulator machine is used, therefore, the moisture content of raw materials should be under 6% and no need adding water in the whole granulation procedure. That is the special character of Extrusion Technology.
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Whirlston Fertilizer Machinery is specialized in designing compound fertilizer plant and providing advanced compound fertilizer making machines. Mini NPK compound fertilizer production line can produce about 5,000 tons fertilizer annually. The whole layout and plant design are compact, reasonable and land-saving,which makes it become the most popular NPK fertilizer production line among the worldwide new investors.Because of small production scale, production of NPK compound fertilizer on the roll extrusion technology is with lower eneray consumption. less accessories. thus with lower production cost.
1. Cage crusher
No-dust cage mill, also called no-dust urea crusher, is a fertilizer crusher machine that used for crushing of hard materials, like urea, MAP, DAP, etc. It uses belt
conveyor to send compound fertilizer materials to cage mill. And then the materials are sent to cyclone type dust collector, so that dust problem is solved. It is an
inevitable part in small scale NPK fertilizer production.
2.Horizontal Fertilizer Mixer
Chemical fertilizer components should be at a certain mixing ratio.Horizontal mixer is specially designed to mix N, P, K elements and other chemical elements in NPK compound fertilizer production process.
3. Double Roller Granulator
After mixing process, the mix is transported to double roller extrusion granulator for shaping into the fertilizer form prior to drying.
Adoptina normal temperature production technology, double roller extrusion granulator machine is a one-step forming machine that produces compound fertilizer granules. It is especially applicable to small scale fertilizer production line.
4. Fertilizer Screening Machine
After being granulated, the extruded granular NPK fertilizer is screened to remove oversize material or any fines or dust associated with the fertilizer. The oversized fertilizers are returned to the crusher machine for further processing. The dust is similarly returned to the mix and added to the first mixer in the process. By recovery of said by products there is no waste from this process.
