Dry granulation technology is fast, good effect, filter design special hole, careful screening, the friction filter rod can crushing sieving solid particle, is widely used in pharmaceutical, chemical, food industry. And it can substitute for swing granulator, is a new generation of particle equipment.
The main structure of dry granulator.
Composition of dry granulator is mainly composed of feeding, mixing, granulating, transmission and lubrication system. Its work process is combined with powder less than 15% moisture content, from the hopper into the feeding auger, by adjusting the stepless speed regulation motor speed, obtain material flow right, then into the blender, tempering the stirring rod stirred and mixed with steam, if need to add molasses or grease, also from the added and together with the mixing drum steam, oil content of less than 3%, otherwise it is difficult to form, after quenched and tempered with powder temperature can reach 64 ~ 85 ℃, relative humidity 14 ~ l6%. And then through the chute through the iron absorption device can select the powder to remove iron impurities mixed in, and finally into the press room.
Use of dry granulator.
1, dry granulator is a rotating cylinder with a swing function, through the wire sieve can research into the wet powder material particles, can be widely used as grinding has become pieces and become used ready-made particles.
2, in the chemicals used as wet and powder grinding into particles, after drying for compressed tablets, and can crush during storage and clot or caking in chemical process industries in pieces, used for processing the sweets and sugar mixture and malted milk products in the food industry, in other industries such as ceramic, plastic mixture become forming particles.
3, it is not suitable for semi solid, liquid, paste or wear with.
The advantages of the technology of dry granulator:
1 can avoid animal picky eaters. Feed formula for a variety of raw materials, nutrition is comprehensive, can prevent the animal from selected their favorite powder, refused to eat other components of the phenomenon. Because grain feed in and feed and can keep the uniformity of feeding process, can reduce feeding loss 8%~10%.
2 feed rate. The granulating process, due to the combined effects of water, temperature and pressure of the feed, some physical and chemical reaction, so that starch gelatinization, enhanced the enzyme activity, can make the feeding animal more efficient digestion of feed, converted to weight gain. Granular feed feed for poultry and swine, compared with powder, can improve the feed conversion rate (i.e. the rate of return) 10%-12%. Granular feed for pigs 4%, average daily gain, feed meat ratio decreased 6%; feeding broiler feed meat ratio, reduced 3%-10%. 3 storage and transportation is more economic. Granulating, tends to feed an increase in bulk density 40%-100%, can reduce the storage, transport cost savings.
4 good fluidity, easy management. Many powder especially fluffy feed the proportion of small, add molasses or high fat and urea feed often adhered to the material library. Because grain feed good fluidity, rarely produces adhesion phenomenon, for the application of automatic feeder scale cattle or poultry farms, feed the most popular.
5 avoid automatic grading of feed composition, reduce the pollution of the environment. In the powder storage process due to the volume of quality of various powder is not a, easily produce classification. Classification of feed composition are not made of particles, and the particles are not easy to dust, in feeding process of particles to air and water pollution are powder less.
Salmonella bacteria to kill 6 in animal feed. Salmonella is animal intake will remain in animal tissues, people eat infected animal will get Salmonella gastrointestinal diseases. Methods using steam high temperature tempering and granulation can kill the presence of Salmonella in animal feed. |
