Double roller granulator for compound fertilizer production line

Twin roll granulator is famous in the fertilizer production industry for dry granulation. It requires the moisture content of the material to be less than 5%. In addition, the roller press granulator is suitable for the production of special compound fertilizers of high, medium and low concern, such as the production of diammonium phosphate, nitrogen, phosphorus and potassium, and urea fertilizers.

6 t/h fertilizer production line for making bio fertilizer granules
the design of biofertilizer making plant

Therefore, the double-roll extrusion granulator is the key equipment of the npk production line. Also, you can change the shape of the fertilizer by assembling different rollers. Reasonable design, low energy consumption, perfectly meet your requirements for compound fertilizer granulation process.

In general, a twin roll granulator includes 4 main components.

• The frame part is an integral structure made of high-quality carbon steel plate. All other parts need to be assembled in the rack section. Also, there are holes around the machine. Easy to unload and transport.
• The transmission part refers to the motor drive pulley, V-belt and reducer. This part mainly provides force when the double-roller granulator is working.
• The extrusion granulation part is the key part of the drum granulator. In a complete twin roll granulator there are two rolls which compress the powdered material into large pieces.

• The crushing and separation part is to crush the extruded large flakes into uniform particles. The off-spec fertilizer granules are then separated and need to be returned to the granulation section.
Why choose a twin-roller granulator to produce granular fertilizer?
•Widely applicable to various raw materials. You can not only use twin roll processing machines on npk fertilizer production lines. But it is very applicable in pharmaceutical, chemical, metallurgy, coal, feed and other industries.

• Reduced investment. Extrusion granulators make fertilizer granules at room temperature. So you don’t buy fertilizer dryers and coolers.
• No waste pollution discharge. Our drum granulator uses electricity as the main power. Therefore, the pollution to the environment will be reduced.
• High granulation rate. The ball forming rate of the double-roll granulator is over 90%.

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Pig Manure Organic Fertilizer Production Process

The pig manure organic fertilizer producing line is a series of production equipment that uses pig manure as raw material to ferment and process high-tech equipment to make organic fertilizer. Pig manure organic fertilizer production line adopts advanced production technology to provide 1-100 tons/hour organic fertilizer production line.

The pig manure of the pig farm contains 15% organic matter, low total nutrient content, 0.5 to 0.6% nitrogen, 0.45 to 0.5% phosphorus, and 0.35 to 0.45% potassium (specifically subject to local pig manure testing results). Pig manure has a finer texture and a more complex composition. It contains protein, fat, organic acids, cellulose, hemicellulose and inorganic salts. Pig manure contains more nitrogen and the ratio of carbon to nitrogen is small (14:1). It is generally easily decomposed by microorganisms and releases nutrients that can be absorbed and utilized by crops. It is a good farm manure and a good quality for fertilizing and improving soil. Organic fertilizer resources. However, most pig farms use water to flush the manure to clean the manure, which makes the production of pig manure accompanied by a large amount of sewage. Therefore, it is necessary to separate its solid and liquid, and the manure can be composted. The manure is fermented, and the aerobic and anaerobic microorganisms contained in the external bacterial agent are used to decompose the organic matter in the pig manure that is not easy to be directly used by the crop into small molecular substances. (Inorganic salts and minerals), and achieve the purpose of deodorizing, killing insect eggs and killing diseases during the fermentation of pig manure. The materials obtained in the final fermentation are fully decomposed, and when used as fertilizer, there will be no burning phenomenon, which is safe used as fertilizer.

Double Roller Press Granulation Production Line

Product advantages of pig manure organic fertilizer production line

1) Roller press granulator machine: The equipment adopts advanced production technology and the granules are uniform

2) Tumble dryer machine: adopts counter-current cooling method with high efficiency

3) 20 years of production and processing experience, precise processing equipment, professional installation and maintenance team

Working principle of pig manure organic fertilizer production line

①Fermentation of raw materials—②Automatic batching of raw materials with computer belt scales—-③Crushing and mixing—–④Disc granulation, drum granulation—–⑤Drying machine to dry organic fertilizer granules —⑥The cooler cools the organic fertilizer particles—–⑦The sieving machine screens out the qualified organic fertilizer particles—–⑧The coating machine coating particles are smoother—-⑨Packing scale automatic filling Organic fertilizer particles—⑩Sealing