Pills refer to the pill made of fine powder of decoction pieces with water as the binder. The preparation process requires batching, crushing, sieving, mixing, drying, packaging, etc. After the pill is made successfully, the classification of the pill needs to be processed by the supporting equipment for pill production-the vibrating pill sieving machine, to screen out the pills of different purposes and different levels, and to remove the continuous pill and residual pill.
The principle of the vibrating sieving pill machine is to use a vibrating motor to excite the source of vibration power, so that the material is thrown on the screen while making a linear motion, and the material enters the inlet of the screening machine evenly from the feeder and passes through the multi-layer screen. Produces various specifications of oversize and undersize material, and discharges them from their respective outlets.
It is understood that the vibrating sieving pill machine will not cause pollution during the drug production process, and it is the standard choice for material screening and grading in the pharmaceutical industry. Because GMP has very high requirements for the material and selection of medical production equipment, the medical vibrating sieving equipment needs to be built in strict accordance with GMP requirements to ensure the quality and safety of the screened drugs.
For example, in material selection, the vibrating sieving equipment used for pills must be made of stainless steel 304 or even 316, and no impurities are allowed in the parts that contact the material. The equipment must be carefully cleaned with alcohol before leaving the factory. The internal polishing of the equipment must be smooth, and the inside and outside of the whole machine must be polished. , No black spots, no burrs; in terms of accessories, rubber accessories must meet medical-grade sanitary standards (silica gel), and medical screening equipment must pass GMP production standards.
In recent years, in response to strict GMP standards, some manufacturers of vibrating pill sieving machines have continuously improved and upgraded their equipment to meet the requirements for pill sieving. At present, the vibrating screen pill machine has been widely used in scientific research units, laboratories, inspection rooms, etc. in the pharmaceutical and other industries for the inspection, screening, classification, particle size analysis, and debris content analysis of solids, powders, slurry materials and other materials.
It is worth mentioning that although the vibrating sieving pill machine can basically meet the needs of the pharmaceutical industry, many users often encounter some problems during use, which may be the quality problems of the equipment itself, or the equipment has been used. A series of adverse reactions caused over time.
For enterprises, when choosing vibrating sieving pill machine equipment, they should look for the supplier’s qualification and brand. In addition, in the process of using the equipment, the operators need to pay attention to maintenance on the one hand; on the other hand, for the stability of production and operation, the operators also need to master some common failure methods of the equipment.
For example, the material may be discharged too fast or not discharged on the sieve, or the material may jump too high on the sieve. Don't worry when this kind of situation occurs. The technician pointed out that in fact this is not a fault of the vibrating screen, and the phase angle of the motor in the vibrating sieving pill machine is not adjusted well. In this regard, the operator can adjust the angle between the upper and lower ends of the vibrating sieving motor, so that the material can be discharged on the screen faster or slower. In general, the larger the angle, the longer the material stays on the screen surface, and vice versa. In addition, the weight of the vibrating motor can also change the height of the material jumping on the surface of the screen.
The maintenance of the vibrating sieving pill machine is also very necessary, which is related to the life of the equipment. When maintaining the vibrating siever, the operator should feed the material along the screen surface in the direction of material movement, and control the material to be evenly distributed on the entire plug surface without overloading. At the same time, it is necessary to regularly check the fever of the main bearing, and it should not be too high; check whether the linear vibrating sieving equipment is stable, if there is abnormal vibration, impact, or shaking of the fixed frame, it should be adjusted properly after shutdown.