Overview of Organic Fertilizer Manufacturing Technology
I. The current basic situation of domestic organic fertilizer production technology
my country’s organic fertilizer production started late, and has not yet formed a complete and stereotyped production technology. There are currently two main processes: one is the extrusion granulation process transitioned from feed production, and the other is chemical fertilizers. The advantages and disadvantages of the two processes are as follows:
1 Extrusion granulation
The main advantage is that the moisture content of the raw material is low, and the product is easy to dry , The extrusion density is high, and the fertilizer grain strength is high. The main disadvantage is that the extruded fertilizer is columnar, and machine planting is difficult and unpopular. In addition, there are problems of small output and high cost of wearing parts.
2 disc granulation
The advantage is that the product is round, suitable for machine sowing, and the output is relatively high. The disadvantage is that the size of the material is unavoidable, the yield of the target product is low, and the amount of water added during disc granulation is large (usually 30-50%), so drying is difficult, drying costs are high, and drying nitrogen loss is large. Although the disc granulation process has many drawbacks, it is still the dominant process in China. Therefore, the innovation of organic fertilizer manufacturing technology is imperative.
II. Overview of organic fertilizer manufacturing technology
Combine the advantages of extrusion granulation and disc granulation, and avoid the shortcomings of the two The new process technology of organic fertilizer manufacturing with completely independent intellectual property rights created by the company. The main technical features are:
1 One step can directly produce spherical particles, no size and no return, and the ball formation rate is more than 95%, so the production cost is low, and it is suitable for machine sowing.
2 Low requirement on raw material moisture (average 10-20%), easy drying and post-processing, and low drying cost. Because it can be dried or air-dried at low temperature, it will not affect the bacterial count of the biological fertilizer.
3 Wet granulation, less wear of wearing parts and low cost.
4 successfully solved the problem of sticking when the urea content in the green fertilizer formula is high.
5 has a wide range of adaptability to various materials in organic fertilizer granulation.
Third, the new process mainly consists of three parts
[Kneading process]
1 For various materials, the reinforcing agent has the function of efficient dispersion.
2 is the strong reaction between the reinforcing agent and the material.
3 Modifies organic materials, reduces plasticity, increases density, is beneficial to granulation, and can reduce mechanical wear.
[Pelletizing and Rounding Process]
This is the core of this process, which is a patented technology, which rolls the kneaded materials into a circle at one time Ball, no return material, high efficiency and good strength.
1 Beautiful appearance, reasonable structure, safe and reliable, easy to operate.
2 The machined pellets have a strong anti-overload ability, even under full load conditions, the car will not be stuffy, and there is no need to set up a separate feeding device.
3 With low power and high output, it can be widely used for granulation in organic fertilizer, feed, agriculture and animal husbandry, sewage treatment and other industries.
[Enhancing agent technology]
1 It can enhance and densify fertilizer grains early, reduce drying costs, and is suitable for machine sowing.
2 The main components of the enhancer come from 16 elements required for plant growth. It is said that the enhancer can increase fertilizer efficiency without side effects.
3 has adaptability to different raw material enhancer formulations, so it can be widely used in the manufacture of organic and organic-inorganic compound fertilizers such as livestock manure, straw, peat, and weathered coal.
4 It has a coating effect on the fertilizer granules, avoiding the mechanical bonding of urea in the formula and reducing the loss of nitrogen.
5 The reaction between the enhancer and the material should be carried out at room temperature. The reaction rate increases as the temperature increases. To sum up, the new organic fertilizer manufacturing process is the overall process of the above three new distribution sets, and the lack of a part cannot achieve satisfactory results. Therefore, the establishment of new enterprises and the transformation of old enterprises must be based on the overall design of the new technology, and the overall installation and commissioning.
