Organic fertilizer production technology

I. The current state of the domestic organic fertilizer production process

China's organic fertilizer system started late and has not yet formed a complete stereotyped production process technology. Currently, there are mainly two kinds of processes: one is the extrusion granulation process from the transition of feed production, and the other is the disc borrowed from fertilizer production. The advantages and disadvantages of the granulation process and the two processes are as follows:

1 Extrusion granulation

The main advantages are low moisture content of raw materials, easy drying of products, high extrusion density, and high strength of fertilizer particles. The main drawback is that the extruded fertilizer is columnar and it is difficult for the machine to broadcast. In addition, there are problems such as small output and high cost of wearing parts.

2 Disc Granulation

The advantage is that the product is pellets, suitable for machine broadcasting, and the yield is relatively high. Disadvantages are that the size of the material is unavoidable, the yield of the target product is low, and the amount of moisture added during the granulation of the disc is large (usually 30-50%). Therefore, the drying is difficult, the drying cost is high, and the loss of drying nitrogen is large.
Although there are many disadvantages in the disc pelletizing process, it is still the current domestic leading process. Therefore, it is imperative to say that organic manufactur- ing technology is innovative.

Second, an overview of organic fertilizer manufacturing process technology

Set out the advantages of extrusion granulation and disk granulation, avoiding the shortcomings of the two to create a new process technology for organic fertilizers that has its own intellectual property rights. The main technical features are:
1 Ball pellets can be manufactured directly in one step, no size, no return, and balling rate is more than 95%, so the production cost is low and it is suitable for machine broadcast.
2 The raw material moisture requirement is low (average 10-20%), drying and post-processing are easy, and the drying cost is low. Since it can be dried or dried at low temperature, it will not affect the bacterial activity of biological bacteria.
3 wet granulation, wearing parts wear small, low cost.
4 Successfully solved the problem of sticky disks when the urea content was high in the green fertilizer formula.
5 Wide adaptability to various materials when granulating organic fertilizers.

Third, the new process is mainly produced by three major components

[Kneading process]

1 For various materials, enhancers function to efficiently disperse.
2 is a strong reaction between enhancer and material.
3 Modification of organic materials, reducing plasticity, increasing density, favoring granulation, and reducing mechanical wear.

[Pelleting, Rounding Process]

This is the core of this process. It is a patented technology that rolls the kneaded material into a ball at one time, without refeeding, with high efficiency and good strength.
1 beautiful appearance, reasonable structure, safe and reliable, easy to operate.
2 The machined granules have a strong anti-super-power capability, and do not have to be equipped with a separate feeding device even if they are not boring at full load.
3 It has low power and high output and can be widely used in granulation for industries such as organic fertilizer, feed, agriculture and animal husbandry, and sewage treatment.

[Enhancer Technology]

1 The fertilizer can be used for early enhancement, densification, and reduced drying costs. It is suitable for machine broadcasting.
2 The main component of the enhancer comes from the 16 elements required for plant growth. The country says enhancers can increase fertilizer efficiency and have no side effects.
3 Adaptability to different raw material enhancer formulations, so it can be widely used in organic manure, straw, peat, weather coal and other organic, organic - inorganic compound fertilizers.
4 It has a coating effect on the fertilizer particles to avoid the adhesion of urea to the machinery in the formula and reduce nitrogen loss.
5 The reaction between the enhancer and the material should be carried out at room temperature, and the reaction speed increases as the temperature increases.

In summary, the new organic manu-facturing process is the overall process of the above three new distribution sets, and some of them lack satisfactory results. Therefore, the establishment of new enterprises and the transformation of old ones must be designed in accordance with the new process and installed and debugged as a whole.
Song Jifu

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