If you are looking for a reliable and efficient machine to produce NPK fertilizer granules, you may want to consider the double roller extrusion granulator. This machine is a novel researched granulating machine in fertilizer industry, which can make use of the physical extrusion force between two rollers to turn chemical powder into pellets. It is especially suitable for the production of NPK fertilizer granules, which can provide balanced nutrients of nitrogen, phosphorus and potassium to crops.
In this blog post, we will introduce the features, advantages and working principle of the double roller extrusion granulator in fertilizer granules NPK production line. We will also give you some tips on how to choose a suitable machine for your fertilizer business.
Features of Double Roller Extrusion Granulator
– It adopts dry granulation method, which does not need water or binder in the granulation process. This can save energy and reduce cost.
– It can produce various shapes and sizes of NPK fertilizer granules, such as pillow, semicircle, stick, pill, walnut, flat ball and square bar. You can customize the shape and size of the ball socket on the roller sheet according to your needs.
– It can produce high-quality NPK fertilizer granules with high, medium and low concentration. The hardness of the granules can reach 15-20N, which is good for storage and transportation.
– It can also be used to produce other kinds of compound fertilizer granules, such as urea, zinc sulfate, potassium chloride, ammonium bicarbonate, ammonium sulfate, magnesium sulfate and sodium chloride. It can also granulate raw materials of chemical, pharmaceutical and metallurgical industries.
Advantages of Double Roller Extrusion Granulator
– It has a simple structure and easy operation. It only needs two counter-rotating rollers to squeeze the mixed materials into cake shape, and then crush them into granules by a conveyor chain.
– It has a high granulation rate and low power consumption. The granulation rate can reach 95% or more, and the power consumption is only 7.5kw/h.
– It has a long service life and low maintenance cost. The roller sheet is made of alloy steel with anti-corrosion and wear-resistant properties. The roller shaft is made of forged steel with high strength and durability.
– It has a wide applicability and flexible configuration. It can work independently or in combination with other fertilizer equipment, such as batching machine, mixer, crusher, dryer, cooler, screener, coating machine and packing machine.
Working Principle of Double Roller Extrusion Granulator
The working principle of the double roller extrusion granulator is as follows:
1. You need to prepare the raw materials according to the formula of NPK fertilizer. The moisture content of the raw materials should be less than 10%.
2. You need to feed the mixed materials into the hopper of the double roller extrusion granulator. The two counter-rotating rollers will press the materials with strong extrusion force.
3. The materials will be squeezed into cake shape under the action of the rollers. The cake shape materials will be sent to the crushing device by a conveyor chain.
4. The crushing device will break the cake shape materials into granules with uniform size and shape. The granules will be discharged from the outlet of the machine.
5. You can collect the finished NPK fertilizer granules and pack them for sale or storage.
Tips on Choosing a Suitable Double Roller Extrusion Granulator
If you want to buy a double roller extrusion granulator for your fertilizer business, you need to consider some factors before making a decision. Here are some tips for you:
– You need to consider your production capacity and budget. The double roller extrusion granulator has different models with different production capacity and price. You should choose a suitable model according to your actual needs and budget.
– You need to consider your raw materials and product specifications. The double roller extrusion granulator can process various kinds of raw materials and produce various shapes and sizes of NPK fertilizer granules. You should choose a suitable machine that can meet your requirements on raw materials and product specifications.
– You need to consider your production site and installation space. The double roller extrusion granulator has a compact structure and small footprint. However, you still need to reserve enough space for installation and operation. You should measure your production site and choose a suitable machine that can fit in your space.
The double roller extrusion granulator is a great choice for producing NPK fertilizer granules in a dry way. It has many features and advantages that make it stand out among other fertilizer machines. If you are interested in this machine, you can contact us for more details. We are a professional fertilizer equipment manufacturer with rich experience and high reputation. We can provide you with high-quality machines, customized service and technical support. We are looking forward to hearing from you soon.