First, the working principle of the coating machine
Coating machine is a kind of mechanical equipment widely used in medicine, food, chemical industry and other fields. It can wrap solid particles or granules in a protective film, thereby improving the stability of products such as drugs, food, chemicals, and making them easier for consumers to take. The coating principle of the coating machine mainly includes the following steps:
1. Spray the coating liquid: spray the drug or food coating liquid evenly on the surface of the particulate matter to form a wet film.
2. Drying: The particles containing drug or food coating liquid are dried under specific temperature and humidity conditions, so that they gradually form a dry, symmetrical film.
3. Bonding: For multi-layer coating, a covering layer can be sprayed on the surface of the particle to strengthen the adhesion of the film, or a small layer of adhesive can be spread on the surface of the particle.
4. Hardening: hardening with steam or other chemical reactions to cure the coating steam.
Second, the work flow of the coating machine
The work flow of the coating machine mainly includes the following steps:
1. Spray: The liquid coating agent is evenly sprayed to the surface of the particulate matter through the spraying system.
2. Drying: The particles are dried in a high temperature and low humidity environment, so that a dry, symmetrical film is formed outside the particles.
3. Bonding: Add adhesive, etc., to form a covering layer or disperse a small layer of adhesive on the surface of the particulate matter to strengthen the adhesion of the film.
4. Hardening: For the coating layer that needs to be hardened, use steam or chemical reaction to harden and cure the coating.
5. Surface shaping: surface dressing for poorly formed particles to meet the requirements.
Third, the application field of coating machine
Coating machine has a wide range of applications in medicine, food, chemical and other fields. The details include:
1. Pharmaceutical field: The coating machine is widely used in the pharmaceutical industry, which can prepare sustained release agents, oral preparations, controlled release preparations, enteric-soluble preparations, etc. At the same time, it can also improve the stability, moisture-proof, shading and other characteristics of the drug, and extend the storage life of the drug.
2. Food field: The coating machine can cover food on its surface, thereby improving the appearance and taste of particles, and enhancing their retention.
3. Chemical field: The application of coating machine in the chemical field includes waterproof, sealing, moisture-proof, anti-oxidation, etc., and can also improve the stability and quality of chemical products.
Iv. Conclusion
This paper introduces the working principle and application technology of the coating machine in detail, so that readers can have a deeper understanding of the use and maintenance of the equipment. At the same time, the application of coating machine is not only limited to medicine, food, chemical and other fields, but also will bring more improvements and innovations to a wider range of industrial fields.
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