Dry granulating method compared with the traditional wet granulation, the powder material is made of granular products directly meet the requirements of the user, without any intermediate and additive, granulating uniform product size, bulk density increased significantly, not only to control pollution, but also reduce the powder material and energy costs, improve the apperance and liquidity, easy storage and transportation, can control the solubility, porosity and specific surface area and so many advantages, especially suitable for wet mixing and granulating, step boiling granulating can not work materials.
Dry granulating machine technology by roller press granulating machine. 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.. The material heat easily decomposed failure or caking wet granulation. Dry granulating machine made of particles can be directly tabletting or filling capsules.
Production of dry granulating machine after the drying section from the top of granulator is added, the pre pressing into sheet rolling machine, rolling machine in the double squeeze, materials into sheet, the sheet material after crushing, whole grain, powder screening process, to obtain granular products need.
Material by mechanical compression molding. Don't destroy the chemical properties of the material, decrease the effective content of product. The whole process is closed, no impurities flow, high product purity, and no pollution to environment. The production process automation, suitable for mass production.
In addition to extrusion friction can cause dangerous explosion, the unit can be directly granulated for most dry powder materials. The rotary joint for water cooling on the roll, this machine can also be suited for granulation of heat sensitive materials.
The characteristics of dry granulator
1, the vacuum automatic feeding, automatic operation of the whole process of closed.
2, all parts in contact with the drug is quickly disassembled, cleaned separately.
3, an eccentric structure pressure wheel side by the computer monitor, the sheet material hardness, thickness uniformity control.
4, double star wheel mesh whole grain, so that the fine powder to a minimum.
5, adapt to the majority of Chinese medicine granule granule
Dry granulating machine can be widely used in dry powder granulation pharmaceutical, food, chemical and other industries. The specific application is as follows:
1) tablet, granule and capsule pharmaceutical industry.
2) all kinds of snacks, food industry, convenience food, seasoning, dairy products and health food particles.
3), electrical appliances, machinery industry in the ferrite steatite, porcelain materials, oil bearings, magnetic materials and other metallurgical particles.
4), plastic industry in the phenol, urea, melamine, epoxy resin and other plastic shaped particles.
5), chemical industry and other industry, chemical fertilizer, catalyst feed, pigments, cosmetics, grinding flour various washing chemical particles. |
