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.

How to dry compound fertilizer granules?

Drying process is also the key of NPK fertilizer production line. The fertilizer should be dried after granulation to reduce the moisture in the particles and increase the hardness of the particles, which is very important to the quality of the fertilizer.

1. The installed dryer shall be subject to an empty machine test for not less than 4 hours. In case of any abnormality during commissioning, it shall be handled in time.

Rotary Drum Dryer Used in Fertilizer Production Line
Rotary Drum Dryer Used in Fertilizer Production Line

2. After commissioning, retighten all connecting bolts, check and supplement lubricating oil. After the test is normal, the load test can be carried out.

3. Before load test run, single air test run shall be conducted for each auxiliary machine. After the single machine test is successful, transfer to the joint test.

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4. Ignite the hot air oven to preheat the dryer and start the dryer at the same time. Do not rotate the cylinder to prevent the cylinder from bending.

5. According to the preheating condition, the wet material is gradually added into the drying cylinder, and the feeding amount is gradually increased according to the moisture content of the discharged material.

6. The preheating of the dryer needs a process, and the hot blast stove should also have a preheating process. Sudden fire is prohibited. Prevent local overheating and uneven thermal expansion and damage.

7. Fuel combustion value, thermal insulation quality of each part, moisture content of wet material and uniformity of feeding amount affect dry product quality and fuel consumption. Therefore, it is an effective way to improve economic benefits to make each part reach the state as much as possible.

8. In the working state, the roller frame shall be filled with cooling water.

9. All lubricating parts shall be filled in time.

10. During shutdown, the hot blast stove shall be closed first, and the drying cylinder shall continue to rotate until it is cooled to close to the outside temperature.

11. It is forbidden to stop at high temperature to prevent the cylinder from bending and deformation.

12. In case of sudden power failure, close the hot blast stove immediately, stop feeding, and turn the cylinder half a circle every 15 minutes until the cylinder cools down.

The operating procedures of this fertilizer manufacturing process should be careful and professional. Failure to follow this procedure will cause the cylinder to bend.