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 make organic fertilizer granules by drum granulation equipment?

Granulators used to convert organic fertilizer into thread and teeth can make various materials into specific shapes. This is a special molding equipment. The equipment uses the aerodynamic force formed by the internal high-speed rotating mixer to realize the mixing, spheroidizing and densification process of fine powder in the machine.

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

Conversion granulation is the wet granulation of agglomerates by a certain amount of water or steam, so after adjusting the humidity, the basic fertilizer will have a complete chemical reaction in the barrel. Under certain liquid conditions, the rotation of the barrel will squeeze the material particles. The pressure condenses back into a ball.

The combination of the two granulation methods makes the prepared particles have higher sphericity and more beautiful appearance. At the same time, it saves energy and has high energy efficiency.

Main features of drum granulator:

1) Low investment, good economic benefit and reliable performance;

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

2) Low energy consumption, no three wastes emission, stable operation, convenient maintenance, reasonable process layout, advanced process and low production cost;

3) The ball has high strength, good appearance quality, corrosion resistance, wear resistance and low energy consumption;
The working principle of the drum granulator is that the belt and pulley are driven by the main motor and transmitted to the drive shaft through the reducer. The driving gear meshed with the big gear ring is fixed on the vehicle body. Work with each other.

Material is added from the feed end through the cylinder. Through the function of the special structure inside the cylinder, it is made into particles, and then flows out through the outlet. Due to the continuous entry of materials and continuous rotation of granulator, mass production can be realized.

Drum Granulation Machine
Drum Granulation Machine

The whole fertilizer granulator can be divided into five parts

1) Support: the whole rotating part of the organic fertilizer drum granulator is supported by the support, which bears greater force. Therefore, the supporting wheel frame of the machine is welded with medium carbon steel plate and channel steel, which has passed the strict quality control and special process requirements and achieved the purpose of the machine.

In addition to fixing the bracket on the shelf, considering that it will cause greater friction with the rolling belt of the car body, our factory specially selects anti-corrosion and wear-resistant materials to greatly extend the service life of the machine. Casting integration technology is also used. In addition, there are hooks on the four corners of the roller carrier, which is convenient for loading and unloading.

Drum Granulation Equipmet Inner Structure
Drum Granulation Equipmet Inner Structure

2) Transmission part: the transmission part of the whole granulator is very important to the whole body. The transmission frame is welded by channel steel and has passed the strict quality requirements. Installed on the gearbox, the main motor and reducer of our company use ISO products with reliable performance and reliable quality. The motor drives the pulley, V-belt and reducer to the spindle to make the body work. The transmission reducer is connected with the working parts of the main shaft through a nylon shaft pin connector.

3) Big gear: fixed on the body, with gear pinion, the opposite drive body work, using high-tech wear-resistant materials, so that the service life of the machine is longer.

4) Rolling belt: fixed on both sides of the fuselage, supporting the whole fuselage.

5) Body part: the body part of the whole granulator is particularly important. It uses high-quality medium carbon steel plate, built-in special rubber lining or acid resistant stainless steel lining for welding, in order to achieve automatic scar removal and tumor removal, eliminating the traditional scraper equipment, and through strict quality control and special process requirements, to achieve the purpose of this machine.

How to make bio fertilizer pellets with rotary drum granulator?

Biological organic fertilizer rotary drum granulator can make organic fertilizer from rice straw, rice husk, manure and other wastes. It is an important granulation equipment for processing agricultural waste into organic fertilizer. Burning a large number of rice straw causes serious pollution to the environment and affects people’s health. In addition, the effect of straw burning on soil fertility was very low. Processing straw into organic fertilizer with high nutrient content not only avoids environmental pollution, but also has high return, high product quality and low production cost. It is of great theoretical and practical significance to develop biomass fuel and reduce environmental pollution.

Working principle of rotary drum granulator for bio organic fertilizer

Under certain pressure and temperature, the bio organic fertilizer powder is compressed into cylindrical fertilizer by rotary drum granulator. The granulator uses extrusion force and friction force to compact sawdust and straw under high pressure and high temperature in the process of roller and drum movement. The material enters between the drum and the roller. The rotary drum is driven by a motor through a current reducer to rotate and extrude the die hole, and finally form the granular material. The main parts of rotary drum granulator are granulation roller and rotary drum. There are two kinds of granulator in our factory: single mode and ring mould.
Characteristics of rotary drum granulator for bio organic fertilizer
Organic fertilizer granulator has the advantages of low consumption, simple structure and convenient operation.

The rotary granulator has many functions and can be used in one machine. It can not only produce organic fertilizer, but also can be used for pellet processing such as feed.

3 organic fertilizer rotary drum granulator has small volume, small power and large output. It can be customized according to the user’s output.
4 rotary drum organic fertilizer production line can save drying and cooling treatment and save cost.

Application range of rotary drum granulator

Rotary drum granulator can be used for organic fertilizer granulation, such as organic fertilizer sludge, straw, peat, etc.
Cake, vegetable cake, sesame cake and peanut cake were used as the main raw materials.
The rotary drum granulator can use corn, beans, rice straw, chicken manure as raw materials for feed and mixed feed. More info on the rotary drum granulator welcome to https://www.wastetofertilizer.com/rotary-drum-granulator/