What equipment do you need for establishing a fertilizer granulation line?

Setting up a fertilizer granulation line is easy, provided that you know what kind of equipment to buy. Here are the main machines this production process requires, with details on their importance and on their role in the overall setup of your production line.

The first process is the mixing of the raw material into a homogeneous compound. This step requires a horizontal mixer. The horizontal mixer is a machine that features two opposing rotors that generate a compound motion of the material. The result of this fast and soft mixing process is a continuous loop of material inside the machine. At this stage of the production process, the shape, the size and the density of the raw material make no difference to the outcome. Different horizontal mixers have different stirring speed, motor power, and production capacity.

The granulator is another essential device. A double roller extrusion granulator is probably one of the best solutions, as it enables the production of high quality granules, at the room temperature, and without drying. This type of granulator is compact and efficient. It can help you achieve a continuous production at a specific rate. It can produce high, medium and low concentration fertilizer. If needed, it can allow you to choose the shape and the size of the fertilizer granules by customizing the shape and the size of the ball socket. This feature can be useful in case you want to switch between different types of fertilizer granules to cater to the needs of your different clients.

NPK fertilizer dry roller press granulating line
NPK fertilizer dry roller press granulating line

This type of granulator works at room temperature and it doesn’t dry the material. This is an eco-friendly method, much better than wet granulation. However, each of these methods has its own pros and cons. You need to carefully weigh their benefits and their drawbacks before making your final decision. In your different fertilizer granulation plants, you can choose different granulators for manufacturing.

The rotary screening machine is another important component of the production line. Although the double roller extrusion granulator has good accuracy, there will always be granules that are too big or too small. As this isn’t something your clients will be happy with, you need this screening machine to allow only good granules to pass through. The other ones will return to the beginning of the production process, so you won’t need to put up with any material loss. This step of the fertilizer granulation process is required to ensure the desired quality standard.

The last stage of the process is the packaging of the fertilizer granules. This is an automatic process which requires a double bucket packing scale. This scale weighs the right quantity of product and packs it in accordance with your instructions. This machine allows you to choose the weight and the size of the packs. This makes storage and transportation much easier, and it allows you to offer your clients the type of product that suits their needs.

This is the basic equipment you need to establish a fertilizer granulation line. Depending on your specific requirements, you may need to add some auxiliary devices and machines.

How Does A Cow Dung Screw Press Dewatering Machine Separate The Liquids From The Solid Manure?

Screw presses have been in use for various types of industrial applications, which includes handling materials such as sludge (biomass slurry), cattle-dung slurries such as cow and chicken manure. This approach is an effective means to reduce waste such as animal manure. The materials are fed into a screw from overhead, which is then pushed between a strainer and the screw where the water drains out. The solid waste is then collected from the screw-thread.

The Cow Dung Screw-Press is a continuous, horizontal operation screw that serves the purpose of dewatering or solid-liquid separation for a variety of different applications.

Liquids are extracted from 3 areas of a screw press in order to maximize recovery and output. The free liquids are immediately drained to lower the imposed hydraulic-load. The screw press comes equipped with cone motors and a separate main-drive for independent control of retention time and speed in the press.

The Cow Dung Dewatering Screw Press Machine serves the purpose of separating solids from the liquids. Around 60% to 80% of the liquids are separated from solids during these processes. These machines have been proven to be effective when it comes to dewatering waste such as cow dung.

screw presss solid liquid separation machine for cow dung processing
screw presss solid liquid separation machine for cow dung processing

The Dewatering Screw Press Machine For Cow Dung comes with these features:

Structure

– A filtering-drum (cylindrical) that comes with a diameter changing screw that creates a closed compressed space.

– During these processes, the inner-diameter will increase gradually.

– To arrive at automatic control and shaft dewatering, a pneumatic-backpressure disc is attached to one side of this screw.

– The extrusion spiral consists of twin-wing blades. These blades are made from stainless steel which is both wear and corrosion-resistant.

– The filter sieve is also made from stainless steel and made up according to the specifications and requirements of the client.

The Working Principle Of Dewatering Screw Press Machine

– When the screw shaft is in operation the cow manure is automatically pushed forward, as soon as it passes into the screw-press.

– As the area within this closed room starts to become smaller, the filtrates start to squeeze out, due to the backpressure disc that pushes the cow manure. The dung is then discharged from the end of the screw.

– As the filtrate passes through the stainless steel screen, it will flow out (discharge) into a collecting box.

– The end product (dry cow dung) that is obtained is efficient and effective due to the absence of moisture.

– The dryness consistency of the dung is easy to achieve thanks to the automatic control function associated with the pneumatic-backpressure disc. This pneumatic disc controls the overall discharging pressure, which results in a steady and uniform dryness associated with the final product (cow dung).

The Uses Of The Final Cow Dung

– The liquid materials are used directly as a type of organic fertilizer.

– The solid waste is often used as fertilizer to improve the structure of the soil.

– The dried cow dung is also made in a granular feed such as fish food.