Application
This machine is one of the process equipment commonly used in the production of solid preparations in the pharmaceutical industry. It has many functions such as mixing, drying, granulating and coating. At the same time, it is widely used in the pharmaceutical, chemical, food and other industries.
Working principle
The machine is composed of a top spray system, a bottom spray system, an air treatment system, a heating system, a control system, an exhaust dust removal system and the like. The top spray is a granulation drying function, and the bottom spray is a coating function. The above functions are all realized on the same boiling granulator, and the user can select the functional requirements according to the actual production process. When the top spray is sprayed, the adhesive is sprayed from top to bottom through the nozzle of the spray gun, and the adhesive is atomized into a very fine droplet sprayed in the opposite direction to the movement of the material. The adhesion of the material and the material is through the adhesive. The liquid bridge adhesion force is bonded together to form a volume that is continuously enlarged to eventually form particles of a certain size.
When coating, the spray gun is installed in the center of the bottom sieve plate, the gun head is upward, and the spray is sprayed from bottom to top. The direction of the spray is in the same direction as the direction of movement of the material. The bottom spray process is the same direction spray, and the spray direction of the coating liquid is consistent with the direction of particle movement. Generally, the movement is fast, continuous, and uniform. Since the coating liquid sprays the surface of the ordered particles in the vicinity of the nozzle, the distance from the nozzle opening to the object to be coated is very close, and the formed film is excellent, and a continuous and tight film can be obtained.
Features
The machine is a new machine researched and developed successfully by our company according to China's actual conditions after absorbing and digesting internationally advanced technology. It has such features as reasonable structure, stable performance, convenient operation, no dead corners, and no exposed bolts. The machine adopts PLC automatic control. All operations are completed automatically according to the process parameters set by users. All process parameters can be printed and the original records are true and reliable. It fully meets GMP requirements for medicine production.
The main features are as follows:
1. Integrated with mixing, drying, granulation and coating, it can directly dry liquid materials and has various functions such as rapid drying of particles, powdery materials, granulation and coating
2. The equipment works under closed negative pressure, and the internal surface of the whole equipment is bright and clean, without dead Angle, easy to clean, in line with the requirements of "GMP".
3. PLC+ touch screen control is adopted, all operations can be completed automatically according to the set parameters, and process data can be recorded for analysis.
4. Function description (FS)
| Feature | Description |
| Feeding | |
| Negative pressure feeding | The negative pressure generated in the fluidized bed during the system operation is used to directly suck the material from the wet mixed granulation or the swaying granulation |
| To the wind | |
| Three-way filter | The system has the filtering functions of primary effect (G4), medium effect (F8) and high efficiency (H13) |
| Efficient differential pressure detection | Detect the differential pressure at both ends of the high temperature hepa filter |
| Inlet air temperature control | Inlet air temperature at room temperature to 120 ℃ range adjustable and controllable, plus or minus 2 ℃ temperature precision |
| Emergency truncation | When the negative pressure disappears in the system, the air inlet handling system and the drying system are cut off |
| Material drying | |
| Material temperature measuring | A temperature sensor is placed in the hopper to detect the material temperature; The feed temperature is displayed on the touch screen |
| Explosion-proof sampling | Explosion-proof sampler is set on the hopper for sampling materials |
| Terminal decision | Compare the material temperature with the air outlet temperature to determine the end point of granulation |
| Continuous shaking bag | The left and right groups of bag shaking devices are set to realize the continuity of granulation/drying |
| Hopper differential pressure detection | Measure the pressure of the hopper to monitor the state of the screen |
| Pressure difference detection of catcher bag | The pressure difference between the upper and lower pressure of the bag is detected to determine whether the bag is blocked or broken |
| Granulating coating | |
| Step granulating | Spray mucus from the top system and glue it into particles |
| Coating | Spray mucus from the base spray system and coat |
| Air handling | |
| Air volume control | Control the opening of the air valve to achieve air flow control, adjust the fluidized bed material boiling intensity |
| Dust removal | Dust removal devices are designed to remove dust from the air before it is discharged into the atmosphere |
| Secondary dust removal | Pulse back blowing bag (or polyester) filter cartridge dust remover, stainless steel shell, filter cartridge washable, pressure difference detection automatic powder cleaning. |
| Temperature detection | The wind temperature is detected and displayed on the touch screen |
| Process automation | |
| Process storage | Can store 50 sets of different formula process |
| System security access | Factory set four access passwords with different permissions to ensure system data security and data integrity |
| Record | Record the names (English/spelling), process procedures and operators (English/spelling/code) of nearly 50 groups of drugs produced for retrospective inquiry; |
| Nearly 50 groups of drug manufacturing failures and their status were recorded. | |
| Equipped with A4 laser printer, it can print the records produced during drug production, including drug name, process procedure, operator, production time, etc. | |
| Print real-time temperature curve. | |
| Print fault record | |
| Fault alarm | Missing alarm for normal production condition |
| Overload alarm | |
| Delayed alarm | |
