The bag centrifuge is characterized by good adaptability, high degree of automation, stable operation, strong technology, good corrosion resistance, good operating environment, complete reliable safety protection devices beautiful appearance. The centrifuges used in the refining process such as drug purification are generally low-speed centrifuges, with a rotating speed of less than 4000 rpm a large processing capacity. In order to meet GMP specifications requirements in drug production, they are generally made of flat stainless steel materials.
There are many kinds of medical centrifuges.
According to the purpose of separation, it can be divided into laboratory pharmaceutical centrifuge industrial pharmaceutical centrifuge.
According to the structure, it can be divided into: tabletop medical centrifuge floor type medical centrifuge.
According to the temperature control, it can be divided into: Frozen medical centrifuge normal temperature medical centrifuge.
According to the separation components, it can be divided into: Medical solid-liquid separation centrifuge medical liquid-liquid separation centrifuge.
According to the capacity, it can be divided into micro medicine centrifuge, small medicine centrifuge large medicine centrifuge.
In terms of function, pharmaceutical centrifuge has the following advantages:
1. The adaptability of the material is strong. With proper filter medium, it can separate fine particles of millimeter level, also can be used for dehydration of finished articles. The articles can be cleaned through water washing pipe.
2. The manual upper discharge type has the advantages of simple structure, convenient installation, low cost, easy operation, can keep the grain shape of the product.
3. The machine adopts advanced elastic support structure, which can reduce the vibration caused by uneven load, the machine runs smoothly.
4. The whole high-speed operation structure, concentrated in a closed shell, can achieve sealing avoid material pollution.
For low-speed centrifuges, due to the strict specifications of the pharmaceutical industry, they are basically flat airtight type. In order to reduce possible pollution damage improve health, stainless steel materials are used for the parts contacting with materials the whole machine is made of stainless steel materials. The whole machine is clean easy to use. This type of centrifuges has basically spread throughout the pharmaceutical industry, plus 3 for blood separation The small centrifuges with a speed of about 1000 revolutions constitute the whole low-speed industrial centrifuge system, at the same time penetrate into other industries related to biomedicine. Such centrifuges can only be used if they meet the national GMP specifications.
The high-speed centrifuge adopts DC brush free motor, maintenance free; microcomputer control, preselected speed, time, centrifugal force, LCD display, easy to operate; 10 kinds of up down speed for selection, fast start stop; stainless steel container room, electronic door lock, early warning alarm function, multiple protection, safe reliable.
The technology of this kind of centrifuges is relatively simple. Generally, the multi-purpose zone centrifuges are used to separate collect cells, viruses DNA molecules according to the density gradient of the sample solution. The continuous way is used for adding dropping samples, which is widely used in the production process, now also widely used in laboratory equipment.
In the pharmaceutical industry, due to the stricter requirements on production quality safety, there are also high requirements on the main process equipment of raw material drug production process in the pharmaceutical production field such as centrifuge. In addition to maintaining its own separation characteristics, centrifuge also needs to meet the relevant norms standards in the field of medicine. The pharmaceutical centrifuge needs to consider the material, structure, material input output mode, safety, labor intensity, control, cleaning sterilization the perspective of meeting the requirements of pharmaceutical production process.
There are cleaning sterilization requirements for batch changing variety changing in the production of pharmaceutical centrifuge, so as to prevent various pollution sources avoid being polluted again. In order to improve the function, control aseptic operation level, it is necessary to make great efforts in program automatic control, man-machine isolation operation, easy cleaning, sterilizable structure, on-line analysis research improvement of material separation methods of different properties.
As the centrifuge in the medical field needs to be removed the medicine, the surface of the centrifuge equipment must be smooth, flat free of dead angles, so it is necessary to ensure that the sharp corners, corners welds of the centrifuge are grinded into smooth transitional fillets during the manufacturing process. Due to the need to contact with the drug, the centrifuge needs to be corrosion-resistant, does have chemical changes with the drug absorb the drug.
With the development of the bag centrifuge, the relevant technology of the centrifuge has been improved. However, the pharmaceutical machinery industry cannot be content with the current situation. It must continue to develop. With the support of national policies, centrifuge enterprises should make continuous efforts to promote the wider application of centrifuge in the pharmaceutical industry.