Compound fertilizer granulating compactor/pellet mill 

       
JIANGSU FUYI MACHINERY TECHNOLOGY CO., LTD. is specialized in manufacturing dry roller compaction for briquetting & granulating powdered material with machanical pressure. As evident in our development history we are in the unique position to have a full mastery of compacting:
 
--Inorganic fertilizer: NPK, KCL, SOP, AS, AC, etc.
--Mineral powder: gypsum, limestone, zeolite, ulexite, lime, coal, dolomite, bentonite, diatomite, bauxite, etc.
--Chemical powder: snow-melting agent,  combustion improver, slag remover, fire retardant, cement retardant, fluorescent agent, battery powder, ceramic, etc.
--Industrial by-product:  FGD gypsum, steel slag, etc.
--Compound organic : coco peat, charcoal, humic acid, animal manure with NPK, straw with NPK, etc.
Especially, we are famous for  compacting almost kinds of FERTILIZER, KCL,AS, SOP,and NPK.

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 though 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

Parts of one whole set of granulating line

     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

Upper and lower sprocket use assembly structure for the transportation of 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.

We welcome customers to visit our factory

 

 Examples of finished products

Layout of Fuyi granulating processes

    We can design different diagram for different clients, we need to design the layout according our clients provide us some basic information about the size of their factory, and how do they want to place the equipments. Our target is making the process more simple , more easy, more economic and more effective.  

 Customers Installation Site

    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 our factory.