Granulator is one of the main equipment for processing finished fertilizer. And in the face of all kinds of granulating machines on the market nowadays, how to choose fertilizer granulator becomes a heated issue for the new investors who are involved in the fertilizer production business. This page will provide references for the initiates in the fertilizer industry.
What Factors Do You Need to Take Into Account in The Selection of A Pelletizer?
Ⅰ. Focus on Granulation Techniques— Dry Granulation vs Wet Granulation
1. Dry Granulation Machines
The moisture of the material is the primary control index for the pelletizing process. Bir narsa uchun, dry granulation manufactures fertilizer pellets with relatively low material moisture. In general, the moisture content is less than 10% as a critical value, and there are very few materials can reach 16%.
Masalan; misol uchun, extrusion granulators (tekis qolipli granulyator va roller extrusion granulator) apply this method for the production of pellets in variable shapes. Compared with the wet granulation, it has lower energy consumption and equipment cost. Bundan tashqari, it doesn’t require the quritgichs or binders to affect the nature of the materials.
2. Wet Granulation Machines
For another thing, wet granulators are equipped with sprinkle system. Bundan tashqari, we greatly recommend conditional fertilizer plants to utilize steam humidification for better granulation effect. Keyin, the following way is hot water granulation, which is superior than cold water granulation.
Eng muhimi, wet granulation refers to the production of fertilizer particles containing 20-40% moisture, which are mostly in the form of balls. Bundan tashqari, wet granulation has a variety of equipment: new type organic fertilizer granulator, rotary drum churning granulator, diskli granulyator va rotary baraban granulyatori.
Eslatma: High moisture of materials easily produce big spherical particles, while low moisture obviously cause fertilizer powder loose or sandy and lower granulation rate.
Ⅱ. Focus on Physical Properties of Raw Materials
Umuman, before granulating, the size of feeding material should be less than 300 meshes which can be pelletized by rotary type granulators, kabi chayqaladigan granulyator, baraban granulyatori va diskli granulyator.
Flat die granulator yoki rotary roller ekstruziya granulyatori can make granules from materials with large size, forming difficulty and great hardness.
Light powder materials, such as livestock manure, coal dust, clay, va kaolin, require the addition of water or a binder to be formed granules. They can be granulated by a new type organic fertilizer granulator, diskli granulyator, yoki aylanuvchi barabanli granulyator. All of these machines have liquid spraying device.
Bundan tashqari, the extrusion granulator is suitable for granulation of non-viscous particles to avoid clinging to the roller sheet and affecting the working situation. Masalan, the equipment can use to dispose crude fiber materials, which are difficult to form with low adhesion, such as sawdust, rice husk, cotton stalks, cottonseed skins, weeds and other crops, straw and plant waste.
Ⅲ. Focus on Finished Products Requirements
1. Fertilizer Category
2. Fertilizer Granular Size
The particle size of the product obtained varies greatly depending on the granulation method. Masalan, rolling granulation commonly make pellets in the small and uneven size, usually 0.3-3mm, kabi baraban granulyatori va pan granulator. Nevertheless, the extrusion granulator make the size of the particles small and uniform through the mold, generally 2-10mm.
Bundan tashqari, other granulators can change the particle sizes by adjusting different parameters. Let’s take the diskli granulyator as an example!
How to Control The Particle Size of Disk Granulator?
3. Fertilizer Shape
Spherical pellets are processed by disk granulator, new type organic fertilizer granulator va chayqaladigan granulyator with high granulation rate, but baraban granulyatori’s pelleting rate is low, faqat 70%. At present, large and medium scale fertilizer production factories mostly use rotary drum granulation machine. There are also some factories will connect disk granulator with baraban granulyatori for secondary granulation, with better results.
Yassi granulyator produces columnar granules.
Rotary roller extrusion granulator can make pillow shape, semicircle shape, stick shape, pill shape, walnut shape, flat ball shape and square bar shape. If you want spherical fertilizer granules, we recommend you to add organic fertilizer polishing machine.
Ⅳ. Focus on Capacity
If the output is 1-3 soatiga tonna, we suggest to choose tekis qolipli granulyator yoki rotary roller extrusion granulator. If you require high effect of granules, you may choose the latter one.
For small production lines with an output of 4-8 soatiga tonna, we recommend choosing chayqaladigan granulyator yoki diskli granulyator. If you want better effect on the granules, you should choose the former. If you prefer high production efficiency, we advise you to install more than two disc pelletizers because of the low cost.
The drum pelletizer is generally ideal for professional medium and large organic fertilizer manufacturing plants with output requirements ranging from 9 uchun 30 soatiga tonna. If you require high capacity and good shape of the pellets, you can choose the rotary drum churning granulator.
In other words, if you own a small or medium scale fertilizer factory with an annual capacity of 5,000-20,000 tonnani tashkil etadi, we propose a high-quality, low-cost tekis qolipli granulyator va diskli granulyator. Bundan tashqari, if you run a large fertilizer plant with an annual output of more than 50,000 tonnani tashkil etadi, we recommend purchasing a aylanuvchi barabanli granulyator directly. Because it is specifically designed to produce fertilizer granules on a greatly large scale and is more time-saving, efficient, and energy-efficient than several churning granulators working at the same time.
Ⅴ. Focus on Investment Costs
Ve strongly recommend you to choose flat die pelletizer va roller extrusion pelletizer because they are small in size, save civil construction cost and have good economic efficiency. They produce pellets in room temperature, without dryer and cooler, and have no environmental pollution. Ayni paytda, they have high granulation density, high organic matter content and good fertilizer efficiency.
If you do not have a large budget and have severe environmental protection standards, we recommend that you choose a disc pelletizer, which has a low cost, low civil construction cost, a specific output, and can work more than one at the same time.
In conclusion, when choosing a right granulator, the fertilizer manufacturers need to consider their output and production cost. The granulation production process, in addition to the physical properties of the materials, is also closely related to the type and mechanical features of the granulation equipment.
Hozir bepul taklif oling!
