Dry powder to granules pellet mill

Working method

       Raw materials are sent into hopper by fixed quantity feeder, when two rolls parallel each other horizontally, powder materials are continuously and evenly fed in the gap between two rollers by their gravities and forced compression. Then we get the round shape granular, but in order to get the better results, we suggest using a rotary screen to sieve the final products, qualified products will be put into bags, and unqualified products will be recycled mix with new material for the next granulating process.

Unit structure

1)  Pre-feeder: Equipped with mechanical vibrating feed hopper with automatic control and timing vibration

2)  Quantitative feeder: Adopts frequency conversion adjusting speed to ensure the feeding accuracy.

3)  Force-feeding screw hopper: It is composed of variable frequency motor, cone helix, stirring knife tooth and cone feeding hopper with visual glass window as well as feeding mouth assemblies and so on. Its function is to further achieve degassing and perform pressure feeding.

4)  Flaking machine: it is composed of left and right fixed bearing seats, frame structure, two alloy steel rollers, two hydraulic oil cylinders, electric automatic pump station as well as hard tooth surface dedicated reducer and main driving motor.

5)  Crushing&Granulating machine: it is composed of cutting-up box, cutting-up main shaft and special rotating cutting blades and the main shaft is driven at high speed by the motor to break the extrusion forming materials and dress into pellets.

 6)   Vibration screen: It is equipped with screen block-proof device and convenient to clean the screen. The broken pellet and powder materials from the breaking and dressing machine is divided into pellet product and recycling powder.

7)   Material return auger: It sends the unaccepted powder material returned from vibration classification screen to the feeding elevator.

8)   Bucket elevator: HLType, used for feeding materials.

9)   Control cabinet: It is composed of the electrical components such as electric control box, frequency conversion controller, ammeter, voltage meter, light, button switches, voltage switch and so on. All the electrical equipment is controlled and operated concentratedly.

Technical parameter

Production line of pelleting mill (we can design differetn line for our customers)

Examples of applied materials

1. Fertilizers:

     potassium sulfate(SOP), potassium chloride, the Russian red potassium, NPK fertilizer, ammonium chloride, potassium nitrate, Ammonium Phosphate Monobasic(MAP), Diammonium phosphate(DAP), ammonium sulfate, ammonium bicarbonate, cow manure plus sulfur, humid acid etc.

2. Powders:

     zinc oxide,Bentonite, benefication agent, phosphate rock, aluminum fluoride Calcium Hypochlorite, calcium chloride, calcium phosphate, cryolite, TSP, SSP, antioxidant, potassium carbonate, rubber additives, metal powder, fillers, feed additives, silica, pharmaceutical intermediates, steel-making additives, lead oxide, melting agent, clay , steelwork dusts, etc.

3. Carbon Black / Graphite

4. FGD gypsum

5. Chemical powder: Sodium formateHCOONa, Magnesium acetate

Rollers available in various materials and Final shape granular

Advantages of fuyi pellet mill

• Adopting increased shafts output dedicated reduce and drum gear shaft coupling effectively protects the rolls and the main bearing from damage, increase the driving efficiency and further improving the production of products. One roller’s bearing seat is fixed and the other roller’s bearing seat is sliding. 
• In the surface of the roller, many holes are arrayed. According to the different compression rate of the materials, choose the trough of one roller aiming at the trough of another roller, or peak to trough. Two rollers are arranged in horizon.
• With the supporting pressure of hydraulic cylinder, they are close to each other and the hydraulic system can has the multiple and automatic protection function.The optimized hydraulic system makes the motion flexibility of dynamic rollers stronger and be able to reject the iron lumps mixed in unexpectedly and protect the equipment to run safely.
• Roller pulling with roller removal device, it’s more easily and quickly for you to change the rollers, and save your costs of changing.  

Customers Installation Site

Automatic control  Electric Cabinet

Services

Fuyi has designed and manufactured roller presses and equipments for briquetting and compacting NPK fertilizer, powder, chemical, minerals, etc, since 2006. We take care of green field projects as well as of existing plants. Our services cover material tests, process layout, engineering, and supply of complete granulating plants or key equipments, guidance of installation and commissioning, training.

Also, the company manufactures and supplies equipment for drying equipments and dust collector machines.

Extensive experience and best quality production facilities guarantee a smooth workflow from start to finish.

Welcome our sincere clients come to visit out factory.