DH Series Dry Roll Press Granulator
    Our company  offers a wide range of machine sizes for high pressure granulating, which covers nearly all requirements of the clients.If your production is low,you can choose small type machine, if you have high production, you can choose one or more sets of machines according to your requirements.And certainly the process of granulating is dry.
Features
Granular strength can be adjusted by adjusting the pressure of roller, control strength of final products.
1. Cycle operations to achieve continuous production. High yield of finished products.
2. Materials are force to compress molding by mechanical pressure, without any additives, the product's purity is guaranteed.
3. Dry powders are granulated directly without follow-up drying process, the existing production process is easy to convergence & transformation.
4. Granular strength is high, compared with other granulating methods, the improvement sof bulk density are significant,especially for the occasion where increase the proportion of product accumulation.
5. A wide range of raw materials can be used, granular strength can be freely adjusted according to different materials.
6. Compact structure, easy maintenance, simple operation, short process, low energy consumption, high efficiency, low failure rate.Â
7. Control environmental pollution, reduce waste and powder packaging costs, and improve product transport capacity.
8. Feeding device adopts frequency adjustment control, high automation ,one can control multi-machine, low labor intensity and long term continuous operation,etc.
9. Major transmission components use high quality alloy material. Stainless steel, titanium, chromium and other surface alloys which greatly improved wear resistance, corrosion resistance, high temperature and pressure capabilities, so that this machine has one long service life.
Â| Model | DH240 | DH360 | DH450 | DH650 |
| Roller diameter (mm) | φ240 | φ360 | φ450 | φ650 |
| Valid usable width (mm) | 300 | 170-230 | 190-280 | 290-330 |
| Roller speed (rpm) | 50-100 | 10-25 | 10-25 | 10-25 |
| Max rolled sheet thickness(mm) | 4 | 8 | 12 | 16 |
| Rolled sheet output*(kg/h) | / | 1300-2300 | 2500-3500 | 5000-7000 |
| Finished product output (kg/h) |
2000-3000 (Oblate) |
900-1300 | 1800-2500 | 3500-4000 |
| Granular size (mm) | 3.5/4.2/4.5/ 5.5/6.5 etc. |
2-5 | 2-5 | 2-5 |
| Main unit power (KW) | 45 | 30-37 | 55-75 | 90-110 |
| Total installed capacity (KW) | 55 | 55 | 90 | 175 |
| External dimension (mm) | 2300×1700 ×1860 |
2350×2000 ×2600 |
2600×2200 ×2900 |
3600×2800 ×3200 |
| Total weight (t) | 5 | 7 | 10 | 21 |
| Model | DH850 | DH1050 | DH1500 | DH1700 |
| Roller diameter (mm) | φ850 | φ1050 | φ1500 | φ1700 |
| Valid usable width (mm) | 420 | 500 | 650 | 650 |
| Roller speed (rpm) | 9-16 | 8.5-14.5 | 6-13 | 5-12 |
| Max rolled sheet thickness(mm) | 25 | 36 | 36 | 46 |
| Rolled sheet output*(kg/h) | 12,000-16,000 | 22,000- 38,000 |
32,000- 100,000 |
50,000- 1,600,000 |
| Finished product output (kg/h) |
6,000-8,000 | 12,000- 16,000 |
15,000- 50,000 |
28,000- 80,000 |
| Granular size (mm) | 2-5 | 2-5 | 2-5 | 2-5 |
| Main unit power (KW) | 220-250 | 400 | 400×2 | 560×2 |
| Total installed capacity (KW) | 400 | 850 | 1,500-1,800 | 2,000-3,000 |
| External dimension (mm) | 5,000×3,800 ×4,100 |
7,000×5,000 ×6,000 |
9,700× 5,600 ×7,700 |
10,500× 6,000 ×8,100 |
| Total weight (t) | 46 | 75-85 | 120-150 | 200-220 |
Applied materials:
| 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 |
 \Flow chart-Dry Roll Press Granulator
- This process is DH650 and the following models of the conventional process
- This process is DH850 and the above model of conventional process
2.Multiple sets of processes
    This process is the process of multiple sets of equipment, can be designed according to the site and customer demand, single bucket elevator can be used for loading and granulating, or lifting to the feed hopper, use hopper to feed. After the process of crushing and screening, the materials are crushed and screened.
    "Mixing - granulation - pre crushing - concentrated crushing - Screening - polishing - second screen - packaging", After the screening ,fine powder material to return to the raw material mixing again into the granulation system to form a granulation cycle, improve the granulation efficiency of the granulation process.
    According to the demand, the granulation of the preceding paragraph can be added batching or drying system,in this process, due to the larger strip produced by the tablet, the lower end of the granulation machine is equipped with a pre crushing machine, pre crushing and then concentrated crushing. The qualified material produced by the screening enters into the next polishing, second screening and the packing process, and the screening out of the unqualified large particles are returned to the impact crusher for re broken, the unqualified fine powder is returned to the raw material place to carry on the re granulation.
Parts of one whole set of granulating lineEquipped with mechanical vibrating feed hopper with automatic control and timing vibration. 2.Quantitative feeder
Adopts frequency conversion adjusting speed to ensure the feeding accuracy.Â
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.
Services
    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.Â
We welcome customers to visit our factory
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