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In a whole set of organic fertilizer production line, granulation is a key process in the whole production process. The productivity of the organic fertilizer granulator, the strength and shape of the granules produced directly affect the quality of the product.

Rotary Drum Fertilizer Granulating Machine

Among the many organic fertilizer production enterprises, the most used organic fertilizer granulation equipment includes drum granulator, extrusion granulation machine and disk granulator machine. Among the three granulation methods, the disc granulator is more suitable for the granulation of organic-inorganic compound fertilizer, and the effect is more ideal. The disc granulator is mainly composed of granulation disc, spray system, transmission device, bracket and so on.

Pig Manure Granulation Machine

During production, the powder raw materials are conveyed by the belt conveyor to the granulation disc in the disc granulator, and the rotating disc with an inclination of 50° rotates the animal material. When the material is brought to a certain height, under the action of its own gravity and inertial force, it breaks away from the disc and slides down along the arc-shaped trajectory to complete the rolling required for granulation. At the same time, the liquid injected by the spray system will be evenly sprayed on the rolling materials to agglomerate them into granules, thus completing the entire granulation process. According to the principle applied in this granulation process, we can call it agglomerate granulation process. With the continuous addition of raw materials, the manufactured particles fall across the edge of the disk under the action of centrifugal force and fall into the belt conveying equipment below.

Double Roller Powder Granulator

As an old model, the disc granulator has experienced the test of various materials, but any equipment has advantages and disadvantages. With the diversification of raw materials, organic fertilizer equipment manufacturers are constantly developing new granulation equipment. In the production of ordinary organic fertilizers, there is a new type fertilizer stirring tooth granulator, which has high production efficiency and good product quality. In terms of organic-inorganic compound fertilizer, there is also a new type compound fertilizer granulator, which is improved on the basis of the stirring tooth granulator, but it has solved the problem of material sticking to the wall. It’s also very beautiful. The diversification of raw materials has promoted the diversification of organic fertilizer granulation equipment. Only by purchasing equipment suitable for your own materials can the whole set of organic fertilizer equipment be effective.

The process steps of using livestock manure to make round granular organic fertilizer:

Step 1: Fermentation is mature. Collect the liquid of livestock and poultry manure, mix it with straw, hay, etc. to control the water content of about 65%, and then transport it to the fermentation tank, sprinkle with aerobic fermentation bacteria, and use a hydraulic trough turning machine to fully mix it and let it In the fermentation process, a pile turning machine is used to turn the material into a pile and cool down during the fermentation process.

crawler type compost turner machine

Step 2: Material crushing. The materials decomposed through high temperature are processed by organic fertilizer crusher equipment. The organic fertilizer wet material crusher is a professional crushing equipment for crushing high humidity and multi-fiber materials. The high-speed rotating chain is used to crush the fiber with a good particle size.

semi wet material crusher details

Step 3: Mix and stir. Add trace elements, auxiliary materials, humic acid, clay, etc. to mix and stir. The vertical mixer has a fast mixing speed and good uniformity. It can mix and add 30% viscous materials with liquid. When working, there are two oppositely rotating blades and rotors that are stirred in the middle. The bottom opening door is adopted for fast unloading speed and less residual quantity.

mixng machine

Step 4: Forming and granulating. Use organic fertilizer disc granulator, organic fertilizer stirring teeth pelletizer or new type gear drum three-combination granulator to granulate the material.

Pig Manure Granulation Machine

Step 5: Tumble drying. The organic fertilizer dryer further removes water from the granulated particles to meet the standard requirements of organic fertilizer moisture content.

manure rotary dryer machine in organic fertilizer production line

Step 6: Drum cooling. Use a cooler to cool the dried granular material, which is helpful for the storage and quality of the granules.

Step 7: Screening and material return system. Due to the granular material output by the granulation molding system, the particle size has a certain difference, which needs to be sieved and classified. The selected drum screening machine requires low vibration, low noise, convenient screen change, and is equipped with a screen surface cleaning device.

Customized Fertilizer Screening Machine in ShunXin

Step 8: Particle coating equipment. The coating machine is composed of a screw conveyor, a stirring tank, an oil pump, a main engine, etc., with a powder coating or liquid coating process. It can effectively prevent the agglomeration of fertilizers. The main machine adopts polypropylene lining or acid-resistant stainless steel.

fertilizer granules coating machine

Step 9: Pack the equipment. The granular material is packaged and enters the finished product warehouse through the conveying equipment. Granular materials can be quantitatively weighed and packaged through automatic packaging scales.

single bucket powder fertilizer automatic packing machine