Dry granulator is used in dry powder directly into granular products meet user requirements, without any additives and intermediates, and granulating uniform particle size, high bulk density, good flowability, not easy to layer, which reduces the powder waste, and prevent environmental pollution, easy storage and transportation, can control of the porosity and specific surface area.
Dry granulating machine applicable to the pharmaceutical, chemical products, chemicals, food, cosmetics and so on, in the pharmaceutical industry are widely involved in various active pharmaceutical raw materials and processing one or more excipients, most of these powder material particles of different size, uneven density, liquidity is not good, easy to dry, so must pass through the granulation in order to tablet, capsule filling. Dry granulation is the advantage of low cost, to pharmaceutical granulation wet instability.
Dry granulating machine adopts horizontal double screw feeding to the pressure roller, can easily adjust the feeding quantity, improve feeding to roller evenness, increases the friction between the material and the roller, roller structure special, not Water Leakage water cooling, and the cooling roll uniform, the powder is not easy adhesion roll. Dry granulating machine vacuum degassing device, the material removal in the air, thereby greatly improving the yield of the rolling mill, efficiency can be increased by 2-4 times. Whole grain mechanism can move in the car, and extruding with certain angle lath, can be very easy to granulation; and replacing the screen easily, machine cavity less heat. Dry granulator machine closed, full automatic operation, no dust. Feeding, flaking, whole grain, disassembly and cleaning is very easy and convenient, meet the requirements of GMP.
Dry granulating machine comprises a feeding mechanism, pressing mechanism, a hydraulic mechanism, a frame and electric control components.
1, the feeding component
A motor reducer, screw, funnel unequal pitch composition, degassing, the material pre pressure, forced into the pressing parts.
2, pressed parts
Composed of a motor, reducer, shaft, bearing, roller etc.. Used roller pressure, wear resistant, acid and alkali resistance, corrosion resistance, high strength stainless steel and through special heat treatment and (solid solution treatment and surface ion nitriding). Sheet material after pressing wheel after extrusion with certain strength, thickness.
The 3 part, granulation
By the motor, reducer, frequency converter, a granulating mechanism and mesh, the sheet material pressing parts out, after two times of granulating to obtain the required particle, the granulation adopts blade, the granulation adopts rotation cage type, particle size is controlled by the mesh mesh. The screen can be matched (phi 1.0mm, Phi 1.2mm, Phi 1.5mm, Phi 2.0mm)
4, hydraulic components
The pressure device: electric hydraulic station, two cylinder, high pressure oil pipe, valve, pressure gauge. After tabletting forming products required hardness is controlled by the pump pressure and feeding speed and wheel speed to.
5, electrical control components
Electrical 220V two-phase power supply, inverter /PLC/ touch screen and other electrical components and circuit, the feeding, tablet, granule for the stepless speed regulation to control. |
