Organic fertilizer double axis mixers are key equipment in organic fertilizer production, ensuring uniform mixing and stable output. Proper material pretreatment significantly improves mixing uniformity, reduces equipment wear and malfunctions, and guarantees stable operation of the fertilizer making machine.

Raw materials must be pre-treated by category before entering the plant. High-moisture raw materials such as livestock and poultry manure and sludge should be pre-dried or mixed with auxiliary materials to adjust moisture content, controlling the moisture content to 50%-65%. This prevents excessive moisture, adhesion, and clumping, which can lead to uneven mixing or equipment overload. Coarse-fiber raw materials such as straw, rice husks, and branches must be pre-crushed to a particle size ≤2cm to prevent entanglement on the mixing shaft and jamming of the blades.

Clumpy raw materials must be crushed separately. Large pieces of material easily create mixing dead zones, reducing the uniformity of the finished product. Stones, metal, plastic bags, and other debris must not be mixed into the raw materials. A grid or iron separator can be installed at the feed inlet to prevent hard objects from entering the machine and damaging the blades and reducer.

Precisely proportion ingredients according to the formula, using an automatic batching system or manual quantitative feeding to ensure accurate ratios of nitrogen source, carbon source, microbial agent, and auxiliary materials. Feeding should follow the principle of small, frequent, uniform, and continuous feeding to avoid overloading caused by large-scale feeding at once. Add the main ingredients first, then the auxiliary materials, and finally the microbial agent to ensure effective mixing.

Before stopping the machine, stop feeding and wait until all material inside is completely emptied before stopping to avoid starting with material and increasing the load. Regularly clean residual material inside the machine, check blade wear, and tighten or replace as needed. Proper material pretreatment can significantly improve the efficiency of the twin-shaft mixer, extend equipment life, and ensure stable quality of the finished organic fertilizer.