الوصف

The DH series Granulator also called pelletizer, Gypsum briquetting machine, Briquetting machine, carbon black granulator, graphite granulator machine, gypsum pelletizer.The importance of powder granulating technology as one of the most important branches of powder particles processing treatment is increasingly clear with the demand of environment protection and improvement of automation of the production process. "Powder products will become granules" has become the necessary trend of powder-after-processing technology in the world.

Working principle:

      DH series dry roll press granulator machine adopts dry rolling technology to compress the powdery materials with moisture content ≤ 1% 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 pelletizer 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.

â—†Without any additives, dry powders are granulated directly.

â—†Granular strength can be adjusted by adjusting the pressure of roller, control strength of final products.

â—†Cycle operations to achieve continuous production.

â—†High yield of finished products.

â—†Materials are force to compress molding by mechanical pressure, without any additives, the product's purity is guaranteed.

â—†Dry powders are granulated directly without follow-up drying process, the existing production process is easy to convergence & transformation.

◆Granular strength is high, compared with other granulating methods, the improvement soft bulk density are significant，especially for the occasion where increase the proportion of product accumulation.

â—†A wide range of raw materials can be used, granular strength can be freely adjusted according to different materials.

â—†Compact structure, easy maintenance, simple operation, short process, low energy consumption, high efficiency, low failure rate.

â—†Control environmental pollution, reduce waste and powder packaging costs, and improve product transport capacity.

â—†Feeding device adopts frequency adjustment control, high automation ,one can control multi-machine, has the features of low labor intensity and long term continuous operation, etc.

â—†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. 

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 are 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, switches, voltage switch and so on. All the electrical equipment is controlled and operated concentratively.

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. Graphite, Carbon black

4. FGD gypsum

5. Chemical powder: Sodium formate HCOONa, Magnesium acetate
 

Technical parameters:

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