Tag: compound fertilizer process

Organic Compound Fertilizer Production

The composition of organic fertilizer is complex, and rational application is very important. Fertilizer granulator equipment manufacturers suggest that we pay attention to the following two points.

1. Organic fertilizer should be fully decomposed before application. If some animal manure, such as pig manure, cow manure and sheep manure, is directly applied to the soil without fermentation and decomposition, the decomposed organic fertilizer in the soil will be decomposed and fermented by microorganisms, and the ammonia produced is easy to cause crop root burning, and some will breed weeds and spread diseases and pests.

NPK Drum Granulation Line
NPK Drum Granulation Line

We advocate using a dumper to fully ferment manure before application. After the compost is wetted with water, it is put into the fermentation tank to make the temperature reach 35-40 ℃. When feces are fully fermented at high temperature, it can kill insect eggs and weed seeds in compost, which is safer and more effective.

2. Organic fertilizer should not be too thick or applied too much. Especially when fertilizing dry land crops, if organic fertilizer is applied directly between rows or near the roots of crops, the concentration around the roots is too high due to the small water holding capacity of dry soil.

After the root system contacts the fertilizer pile, it will cause physiological water loss of crops and form reverse osmosis. Crops not only do not absorb nutrients, but also make water and nutrients in roots exude, resulting in poor growth or withering of crops, but water loss and dead seedlings cause soil nutrient imbalance.

The fertilizer made by NPK fertilizer manufacturing process can not alleviate soil problems, while organic fertilizer plays a great role in soil fertilization.

Therefore, organic fertilizer should be used as the base fertilizer, evenly mixed in the soil and integrated with the soil. When applying organic fertilizer in the growth period, ditch application or hole application should be adopted. Do not spread the pesticide on the ground. Foliar vegetables generally should not be sprayed with high concentration liquid organic fertilizer as foliar fertilizer.

7 detailed process to make compound fertilizer

Process design description of NPK fertilizer production line:
1. Batch processing:
Electronic batching or disc batching.
2. Crushing process:
The mixed fertilizer proportioned according to the design requirements is sent to the raw material crusher for raw material crushing. The purpose is to crush various raw materials to a certain fineness. Basically, the particle size of raw materials is less than 1mm, which is conducive to the material in the granulator. Roll inside to meet the standard ball.

20t per hour drum granulation plant layout
20t per hour drum granulation plant layout

3. Granulation process:
The crushed mixture is conveyed to the fertilizer granulator through the conveyor. The liquid phase provided by the slurry or water in the extrusion granulator makes use of the centrifugal force brought by the rotation of the fertilizer granulator to turn the material into organic fertilizer. At present, it is better to use the disc granulator to produce organic fertilizer. The granulation rate of disc granulator can reach more than 90%, but the table output is low.
4. Drying process:
The granular materials are transported to the rotary three drum dryer through the conveyor. The hot blast stove is set at the inlet of the dryer to provide heat for the drying of materials in the dryer and evaporate the water in the formed materials into water. The steam is introduced into the dust collection chamber through the fan to remove dust. After the material enters the dryer, the liquid phase of the material is high and the ball strength is low. In order to ensure the sphericity of the material, we used it in the design of the dryer.
5. Cooling process:
The moisture content of materials after drying generally can not meet the water content requirements of organic fertilizer. Cooling in the cooler is very important for the NPK fertilizer manufacturing process.
6. Screening process:
The cooled organic fertilizer still has a certain temperature. After the organic fertilizer material enters the screening machine, the organic fertilizer material is roughly classified, and the screened fine powder is directly returned to the granulator for granulation. After screening, the screened coarse material is crushed by the return chain crusher, and then returned to the granulator for re granulation. The finished product is directly sent to the silo of the packaging scale. On the other hand, compound fertilizer materials are also used for screening projects. Cooling engineering plays a certain role in reducing temperature and preventing material caking.
7. Packaging process:
The coated finished organic fertilizer enters the silo of the packaging scale, automatically counts according to the set quantity, then puts it into the packaging bag, and then through the automatic sewing system, the sewn compound fertilizer can be stacked in the silo. Warehouse. In principle, the height of each stack shall not exceed 8 bags and the height shall not exceed 10 bags. The ground must be damp proof.

More detailed info, go to https://fertilizerproductionlines.com/npk-fertilizer-production-line/