The particles generally have the corresponding size requirements, general said that the above lower bound of the form, exceeds the specified diameter and diameter insufficient particles do not meet the requirements. And after the rolling processing, the maximum size of pre press sheet is obviously larger than that of the final particles, and only after granulation system to produce the final particle crushing. Moreover, the downstream processing of the final particles (such as compressed into a tablet) requirements for particle size fluctuation in a small range.
To solve this problem, two diagonal design using the new dry granulator granulation system, the first class for the precast grain device, the second level for the final granulation device, the control system of two levels of granulation system were adjusted so as to produce the grain size and relatively stable particles.
The basic principle of roll process dry granulating machine working process is very simple, dry powder or fine crystalline materials by roller pressing into thin slices, and the sheet quality determines the quality of the final particles.
Clearance of ordinary dry granulator rolling pressure and pressure roller is relatively fixed, and can not take into account the different material and same material differences between batches. And the new dry granulating machine using the latest rolling control technology, control equipment, the equipment can adjust different materials and the volatility of any physical properties of the same material between the different number (such as local uneven), the process parameters of dry granulating (such as throughput, sheet density, rolling pressure, speed etc.) to be accurately, repeated adjustment, so as to efficiently produce high quality particles.
In addition, a separation module clear, between feeding and rolling process of dry granulator, screw feeding system directly to the powder sent to the roller, the initial pressing process rolling process does not affect the screw feed system. |
