详情

DH Series Dry Roll Press Granulator

Part One:Technical information
A. Working Principle:
DH series dry roll press granulator adopts dry rolling technology to compress the powdery materials with moisture content ≤ 5% into pieces or tablets, then going through the processes of breaking into granules and screening to make the lump materials into granules that meet the requirements of application. Dry roll press granulator mainly depends on the manner of external pressure to force the material going through the gap between two relatively turning rollers to compress into laminar particles. During course of roller pressing, the real density of materials
can increase 1.5~3 times thus reaching certain demands of granular strength.
Further explanation-----
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 rolls by their gravities and a forced charger, the two rollers rotate in reverse, and materials between rollers are extruded by mechanical pressure. The intermediate products are bar shape,then the crusher will crush the bar shape products into irregular granules, finally using rotary screen to sieve the final products, qualified products will be put into bags, unqualified products will be recycled mix with new material for the next granulating process.

B. These are our DH series different types granulators:
This type machine has hydraulic system which can protect the machine well. The main granulator body was composed of three parts: dosage screw feeder, forced feeder and flaking
machine.
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.
Features of our granulator:
1.Wear resistant systems for roller surfaces are adapted to the individual requirements.
2.The easy-to-maintain and -repair design provides for maximum availability.
3.Efficient and safe operation by means of modern monitoring and control system.
4.Roller pulling with roller removal device
5.Roller with cross beam
6.Hinged frame for quick roller exchange

C. Technical Parameters (for irregular shape):

Model	DH240	DH360	DH450	DH650	DH850	DH1050	DH1500	DH1700
Roller diameter (mm)	φ240	φ360	φ450	φ650	φ850	φ1050	φ1500	φ1700
Valid usable width (mm)	300	170-230	190-280	290-330	420	500	650	650
Roller speed (rpm)	50-100	10-25	10-25	10-25	9-16	8.5-14.5	6-13	5-12
Max rolled sheet thickness (mm)	4	8	12	16	25	36	36	46
Rolled sheet output*(kg/h)	\	1300-2300	2500-3500	5000-7000	12000-16000	22000-38000	32000-100000	50000-1600000
Finished product output (Kg)	2000-3000(扁圆)	900-1300	1800-2500	3500-4000	6000-8000	12000-16000	15000-50000	28000-80000
Granular size (mm)	3.5 4.2 4.5 5.5 6.5 等	2-5	2-5	2-5	2-5	2-5	2-5	2-5
Main unit power (KW)	45	30-37	55-75	90-110	220-250	400	400×2	560×2
Total installed capacity (KW)	55	55	90	175	400	850	1500-1800	2000-3000
External dimension (mm)	2300×1700×1860	2350×2000×2600	2600×2200×2900	3600×2800×3200	5000×3800×4100	7000×5000×6000	9700×5600×7700	10500×6000×8100
Total weight (t)	5	7	10	21	46	75-85	120-150	200-220