Dry granulating machine technology is the powder made of granular products directly to meet user requirements, bulk density increased significantly after granulation, can not only control the pollution, but also reduce the waste of powder, improve the apperance and liquidity, easy storage and transportation, can control the solubility, porosity and specific surface area.
Powder raw material by the dry granulating machine without any additives can be processed into the 0.5-6mm irregular particles, the packing density of the material is greatly improved, thereby reducing consumption, environmental pollution control, and reduce packaging costs, improve the operating environment of the workers. The powdery material from the hopper feeder, the quantitative evenly added rolling material hopper, the sheet material bucket to maintain the stability of the material, and then by the rolling material hopper longitudinal cone spiral of powder pre compression and the arc-shaped notch is transported to the two roller; arc groove or grooves are evenly distributed on the surface of two roll wave the same shape, the meshing transmission, so that two roll uniform, reverse rotation, the material will be transported to the notch bite into the groove and forced compression, pressure material by compression molding after bear decreases gradually, in its elasticity and gravity, fall off from the tank, enter a grain crushing system, then according to the user's grain size sieving, grading, get the granular product quality requirements. Sieve powder returning hopper recycling.
Dry granulating machine has been used in traditional Chinese medicine industry, the technology through the roller press granulating machine to complete. With traditional Chinese medicine the relative density of extract, the spray drying to obtain dry extract powder, add some accessories, to squeeze dry granulating machine pressed into thin slices, and then crushed into particles. The method needs less materials, is helpful to improve the stability of the particles, disintegration and soluble powder. General dry extract powder and supplementary material 0.5-1 times. Should pay attention to but also, by spray drying of the dry extract hygroscopicity strong. Therefore, application of key application of this method is to find suitable accessories, accessories should be adhered to some extent, also not easy absorption of moisture, such as lactose, mannitol, pregelatinized starch, water-soluble acrylic resin and cellulose derivatives, etc.. Dry granulator granulation powder directly, without any binder, without the need of two drying. The strength of the particles can be adjusted by adjusting roller, pressure, control the intensity of particles. Products for the sand like irregular particles. Not only reduce the cost of the granulation, and reduce dust pollution, dry granulating machine design into two large pieces inside the body and the operation panel Work Department, all driving parts and auxiliary facilities design in the interior of the body, in contact with the material work part is arranged on the operation panel, the middle has multiple sealing isolation, work is work in the state of complete seal, and all contact with the material components, convenient dismounting and cleaning, effectively prevent dust leakage, reducing the possibility of contamination, reduce the cleaning area, fully meet the requirement of pharmaceutical production GMP. Improve labor environment. |
