double roller NPK compound fertilizer making machine

Double roller NPK compound fertilizer making machine

Working Principle

Raw materials are sent into hopper by quantitative feeder , compactors use the pair of roller with the hole roll, leaving certain gap and rotation with the same speed reversely. Shaft holders of one group of rolls are fixed, and the other one of group can slide to help the hydraulic cylinder press the rolls for abutting closely against each other. Many arc grooves with the same shape and size are arrayed regularly on the roll surface. In accordance with different compressing ratios of target materials, the wave trough of arc groove of one roll shall be directed at that of one roll. When two rolls parallel each other horizontally, powder grained materials are, continuously and evenly fed in the gap between two rolls by means of their gravities and through a forced charger from above of two rolls. After entering the nip area, the materials are gradually nipped by the rolls. With continuous rotation of the rolls, the space that the materials occupy reduces gradually and is compressed step by step and reaches the maximum shaping pressure. And then, as the pressure reduces gradually later, pressed blocks drop off the arc grooves of the rolls for recovered elasticity and gravity of the flaking machine and enter a crushing device for crushing and then enter a sieving device for sieving. At last, grained products are obtained. The powder materials and large particles which are substandard will return to bucket elevator and enter into the next process with new products.

Technical Parameters

A completely dry granulating process includes the following equipments

1. Automatic feeding system

2. Auto-measuring batching and mixing system

3. Extruding and pelletizing system

4. Complete pellet smashing system

5. Screening and materials returning system

6. Auto-packaging and control system

7. Dust collector system

Examples of briquetting 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

Different Granulation Line we designed for customers

Granulation machine production line( 9-12TPH Capacity)

Clients Installation site

Delivery every month

Automatic electric control system

Service

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.