Dry Granulation Roll compactor Machine 

        Our company  offers a wide range of machine sizes for high pressure granulating, which covers nearly all requirements of the clients.

 

         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.

 

 

            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

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.

Technical Parameters

 

 

Model	DH240	DH360	DH450	DH650	DH800	DH1000
Roller diameter(mm)	?240	?360	?450	?650	?800	?1000
Valid usable width(mm)	80	170-230	190-280	290-330	380-450	500
Roller speed(rpm)	15,20,26,32	14,18,24,30	10-25	10-25	10-25	10-20
Max forming pressure(KN)	320	800	1300	2100	2900	3500
Max rolled sheet thickness(mm)	4	8	12	16	25	35
Rolled sheet output*(kg/h)	300	1600	3000	6000	10000-16000	26000
Granular Size(mm)	0.5-6	0.5-6	0.5-6	0.5-6	0.5-6	0.5-6
Finished product output*(kg/h)	180	900-1300	1800-2500	3500-4000	6000-8000	13000-16000
Main unit power(KW)	7.5	30-37	55-75	90-110	210-250	315
Total installed capacity(KW)	20	55	90	175	298	450
External dimension(mm)	1500*1300*2500	2350*2000*2600	2600*2200*2900	3600*2800*3200	4200*3500*3500	3800*3500*3800
Total weight(t)	7	10	15	25	33	45
Notes:Rolled sheet output, finished product output are just for reference and the screen is determined according to the nature of materials.

 Welcome to visit our company.

 

 

Notes: Rolled sheet output, finished product output are just for reference and the screen is determined according to the nature of materials.

 

 

       Applicable examples

 

 

Applicable examples:
Name of material	Specification	Granular size(mm)	Output(kg/h)
Potassium chloride, Russian red potassium	DH360	2.0~4.75	1000~1500
	DH450		2000~2600
	DH650		3200~4500
Potassium sulfate	DH360	2.0~4.75	1000~1300
	DH450		2000~2500
	DH650		3000~4500
NPK fertilizer	DH360	2.0~4.75	900~1500
	DH450		1800~2600
	DH650		3000~4500
Ammonium chloride	DH360	2.0~4.75	800~1000
	DH450		1800~2500
	DH650		3100~4600
Ammonium sulfate	DH360	2.0~4.75	800~1000
	DH450		1800~2500
	DH650		3100~4600
Cryolite	DH360	2.0~6.0	1000~1500
	DH450		2000~2600
	DH650		3200~4500
Antioxidant	DH360	0.3~2.0	300~400
Zinc oxid	DH360	1.5~2.5	350~500
Sodium cyanide	DH360	1.5~6.0	800~1000
Steel making flux	DH360	Olive shape	1000~1200
Snow melt agent	DH360	2.0~7.0	800~1000
Bromine chlorine hydantotin	DH240	1.5~6.0	~300
Medical intermediate	DH240	0.5~2.0	~200
Environment protection	DH240	8.0~15.0	~500