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.

Detailed info on rotary drum dryer from sx, go to https://fertilizerplantequiment.com/rotary-drum-drying-machine/

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.

How to dry organic fertilizer for easy storage?

SX organic fertilizer dryer greatly improves the energy-saving concept on the premise of ensuring the drying quality, and its use effect has a great breakthrough in practical application. Good organic fertilizer dryer should achieve the following three points:

Rotary Drum Pellet Compost Production Equipment
Rotary Drum Pellet Compost Production Equipment

Firstly, the drying operation should ensure the product quality; secondly, the drying operation should not cause environmental pollution. Finally, environmental protection and energy conservation should be carried out.
SX organic fertilizer dryer with high efficiency and energy saving

Drum dryer as a professional organic fertilizer manufacturing machine, using fresh chicken manure and cow manure as raw materials, does not contain any chemical components. Due to the poor digestion ability of chicken and cattle, only 25% of the nutrition can be consumed, while the remaining 75% of the nutrition in the feed is excreted with feces. Therefore, the dried products contain nitrogen, phosphorus, potassium, organic matter, amino acids, protein and other components.

What kind of heat source can the dryer use and what are the requirements for drying temperature? How much is a small dryer? What is the price of the whole set of organic fertilizer equipment? As an enterprise of NPK fertilizer granulation equipment, we can answer for you. The dryer of organic fertilizer equipment not only creates economic benefits for enterprises, but also makes great contributions to human environmental protection projects.

As the supporting equipment of organic compound fertilizer production line, our company’s organic fertilizer dryer meets the drying demand of drum granulator. The finished product has fine particles and is composed of heating equipment, main engine, environmental protection equipment and new control system. According to the gravity drop of the material, the adjustable damping coefficient can not only control the dust and avoid the wind tunnel, but also save a lot of power of the rotating and environmental protection system.

SX organic fertilizer dryer has high efficiency and energy saving. According to the material drying detection system, the material is controlled by CVT unloading system to achieve quality control and output coordination. The drying requirements can be changed at any time to control the drying quality.

Drying Process in Fertilizer Production

With the development of economy, the agricultural industry is also developing, driving the development of some agricultural equipment. The dryer of organic fertilizer production line is one of them. The rotary drum dryer has reasonable design, excellent production performance, advanced technology, high output and small floor area.

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

The technology and adaptability of bio organic fertilizer dryer are constantly improved.

The dryer with electricity as fuel has environmental protection technology. The smaller, the more uniform. This is a better dryer. Fuel makes fuel fuller and dry material better. But in this case, the cost of fuel will increase. Therefore, some customers add the quality of this coal to some inferior coal, which can reduce the investment cost. However, in this case, the temperature in the machine will fluctuate and uneven, which will affect the quality of the dried material and achieve the desired effect, so it is not worth paying for this.

But we have to add inferior coal. Experts said that some inferior coal can be added to high-quality coal, but not too much, so the consequences are not obvious and fuel costs can be saved. Therefore, the use of coal as fuel drying equipment, the correct use of coal will produce unexpected results.

Rotary drum dryer is a special drying equipment with high moisture content, high viscosity, high water holding capacity and low calorific value specially designed for NPK fertilizer production process. The internal structure of the dryer has been specially designed, which not only improves the thermal efficiency, but also has the advantages of simple process design, low investment and operation cost. It is more suitable for users who need long-term storage of the granules treated by drum granulator

Increasing the inlet air temperature of the dryer can improve the thermal efficiency of the dryer, and the inlet air temperature is limited by the allowable temperature of the product. In the parallel flow particle suspension dryer, the surface temperature of the particles is low, so the inlet temperature of the drying equipment may be much higher than the allowable temperature of the product.

More details go here.