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FPC disc granulator has the following advantages: high spheroidization rate, high roundness and strength of particles, intuitive operation, convenient maintenance, etc.

The working principle of the disc granulator: The powdered fertilizer is evenly moistened by the atomized water in the double-shaft mixer to form a spherical core with a uniform particle size, and then sent to the spherical disc for granulation. The moisture content of raw materials should be controlled at 12~14%. Most of the water should be added in the double-shaft mixer, and only a small amount of supplemental water should be added to the ball pan, and the supplemental water amount should be controlled at about 0~3%. Dry powder granulation is directly added to the ball-forming disc, and an appropriate amount of water is sprayed. After the raw material ball core enters the ball-forming disc, it moves along a parabola under the action of centrifugal force, friction and gravity in the disc. Due to the cohesiveness and plasticity of the material, the cores adhere to each other and gradually grow up during the movement. When the inclination angle of the ball disc, the high speed of the disc edge and the water content are constant, the material balls of different particle sizes will leave the disc edge and roll down at different detachment angles due to different gravity. The material ball continuously pushes the water out of the surface during the continuous rolling process. Due to the cohesiveness of the material and the natural volatilization of the surface liquid film, the material ball has a certain strength, and then with the rotation of the inclined plate body The edge of the disc is discharged out of the disc.

Stirring-teeth granulator:

The new type of organic fertilizer granulator is also called a spiral stirring tooth structure due to its internal structure , Granulation, spheroidization, densification and other processes, so as to achieve the purpose of granulation. The particle shape is spherical, the particle size is generally between 0.3-3 mm, and the granulation rate is 90%. The size of the particle diameter can be appropriately adjusted by the mixing amount of the material and the spindle speed. Generally, the lower the mixing amount, the higher the rotation speed, and the larger the particle size. Small, and vice versa. Application range: This machine is especially suitable for the granulation of light and fine powder materials. The finer the basic particles of the fine powder material, the higher the sphericity of the particles, and the better the quality of the pellets. It is generally required that the particle size of the material before granulation should be less than 200 mesh. Typical application materials: chicken manure, pig manure, cow manure, carbon black, clay, kaolin, etc.

It is dedicated to the granulation of municipal solid waste organic fermented fertilizer such as manure, compost, green manure, sea manure, cake manure, grass charcoal, soil and miscellaneous manure, three wastes, microorganisms, etc. The particles are spherulites. The granulation rate of the machine is as high as 80-90%, and it is suitable for a variety of different formulas. The compressive strength of organic fertilizer is higher than that of discs and drums. The rate of large balls is less than 15%. The uniformity of particle size can be customized according to user requirements. It is adjusted through the stepless speed regulation function of this machine. This machine is suitable for the direct granulation of organic fertilizer after fermentation, which saves the drying process and greatly reduces the manufacturing cost.

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Belt conveyor is a common equipment used for continuous conveying of goods. There are two types of belt conveyors, fixed and mobile, which are mainly used for loading, unloading, handling and conveying goods or materials. It is the most basic equipment in the manufacturing process of organic fertilizer, which can connect various machines and transport materials. Belt conveyor deviation is one of the common faults in the operation of belt conveyor. There are many reasons for this, including structural design, installation and commissioning. When solving the deviation problem, it needs to be handled flexibly according to the situation.

Harm of belt conveyor deviation

The deviation of belt conveyor means that the conveyor belt deviates from the normal center position to one side of the transmission drum. In this case, if not corrected in time, the edge of the conveyor belt and the frame will rub against each other, and the conveyor belt will wear or even tear over time. In case of serious, the production of nitrogen, phosphorus and potassium fertilizer will stop working, affecting the production efficiency.

Causes of belt conveyor deviation

The reason for belt conveyor deviation is that the forces on both sides of the conveyor belt are unbalanced. If the tension at both ends of the belt is in a balanced state, it is not easy for the newly installed and debugged belt conveyor or the worn old belt conveyor to deviate.

There is a reversing roller at the head and tail of the belt conveyor, which is installed at the head and tail respectively. The head roller is installed and positioned, the central axis is perpendicular to the frame, and the tail roller is equipped with a lead screw as a tensioning device. The perpendicularity between the idler and the frame can be adjusted by adjusting the nut position on the lead screw until the final belt conveyor operates normally.

The reason of wear of the shell of double roller granulator
Zhengzhou SX professional technicians will analyze the reasons for the wear of the roller shell on the compound fertilizer production line on the roller granulator

1. raw material moisture, pH

The roller sleeve is made of stainless steel. It reacts strongly with the pH value of the substance. Improper moisture and pH of the material will cause acid-base corrosion on the roller surface and damage the roller surface.

2. material factors

Roller extruder mainly deals with dry powder materials. Due to the different hardness of the material, uneven forces will be produced during extrusion and ball formation, which will increase the wear of roller skin. From the perspective of material factors, the other factor is the uniformity of the raw material particle size. Different sizes of raw materials also lead to uneven force and wear of roller sleeve.

3. feed uniformity coefficient

The center of the axis of the parallel bar of the extruder is parallel to the surface of the roll skin. If the feed is seriously uneven, one end feeds more and the other end is fed less, it will cause uneven force at both ends of the roller, increase the friction between the roller and the material, and cause the roller to wear.

Measures to reduce the wear of the roller shell in the compound fertilizer production line of the roller extruder:
In the process of pelletizing of the roller extrusion granulator, the roller skin is inevitably worn.

However, if used properly, it can effectively reduce the wear of the roller skin, thus extending the service life of the roller skin. According to the above factors, the following aspects can reduce the wear of the granulator.

1. for materials with high moisture content and high pH value, inspection and adjustment shall be carried out.

2. roller material, it is very necessary to select the cylinder cover with good material, wear resistance, torsion resistance and corrosion resistance.

3. in order to supply working materials, the uniformity of feed must be controlled to avoid wear caused by uneven axial force of roller.
Effective maintenance is an important means to reduce wear.

In conclusion, the damage factors should be avoided in the daily operation of the compound fertilizer production line from to the roller extruder. Therefore, manual and conventional use can reduce the wear of the pelletizing roller of extruder, prolong the service life and reduce unnecessary waste.

1. Material characteristics: whether the material is powder or molten liquid and whether the material has heat sensitivity must be considered when selecting.
2. If the required production capacity is large, many methods can not be applied.
3. Some methods, such as spray drying granulation, can only obtain very fine particles, and the method of not agglomerating the powder can only obtain smaller particles, while other methods such as pressing can obtain large agglomerates.
4. The shape of the pellets is rolled, stirred and drawn to obtain a nearly spherical glume; cooling and solidifying granulation can obtain completely spherical particles; extrusion granulation can produce columnar particles. The possible influence of particles of different shapes on the follow-up work should be estimated.

5. The mechanical strength of the particles obtained by powder agglomeration and shot peening is weak. If high strength particles are needed, they need to be strengthened by pressing or sintering or roasting, and the binder with high strength should be selected for extrusion molding
6. The porosity and density of pellets are closely related to the strength. Some extrusion granulation processes can better control the porosity and density to meet the needs of some applications.

7. Wet granulation and dry granulation need expensive solvent, and drying after taking medicine may cause solvent loss. Some Synergetics may be sensitive to solvent and not suitable for wet granulation, and some materials may recrystallize into different shapes during drying, and wet granulation is not suitable for processing toxic chemicals and other hazardous materials.
8. Space limitation, such as extrusion method, can obtain higher production capacity with smaller devices, while other methods require larger space to install equipment.

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You will discover a molding machine that is called a Rotary drum granulator. It is typically made in the contour from the barrel. It can possess a rubber lining inside, or possibly one which is made of stainless steel which is chemical resistant, and it is typically used for the production of compound fertilizer. When fertilizer is produced, there may be a large amount of phosphoric acid or ammonia included in the drum.

Steam is additionally portion of the process. You will see other materials that will function as the fertilization components. This will be calcium, phosphorus ammonia, and nitrogen that are needed by plants to cultivate effectively. The premise of your machine is always to take every one of these materials and consolidate them into either small sands like components or perhaps pallets. These are then utilized by the farming industry, along with people with gardens, to fertilize the things they are growing. If you are searching for producing compound fertilizer utilizing a Rotary drum granulator, this is what you need to know.

How To Get The Best Manufacturer For These Particular Rotary Drum Granulators? 

The very best manufacturers are generally those that are established. They already have likely been producing this material for years. They can have older models which will be adequate to meet your needs that will be priced at the much lower price point. The true secret is to find out how much fertilizer they are able to make. It needs to be at the very least as much as you require on a regular basis. When you have assessed every one of these, and received quotes back from these companies, then you can produce a logical decision where you might be best for you.

Using a rotary drum fertilizer granulator is the initial step toward avoiding the high price of purchasing fertilizer off their companies. Firms that produce fertilizer all make use of this same sort of equipment. If you wish to come up with a large investment that will pay for itself often over, you should think of obtaining one this coming year. Once done, you are going to have the capability to create almost any compound fertilizer that you might want in a very fast rate.

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