The ground is one of the most important parts of the clean maintenance structure of the pharmaceutical factory. In the selection of its ground materials, in addition to meeting the common requirements of the ground, the amount of dust on the ground, the difficulty of construction and the cost should also be considered. The general requirements are:
1. Good wear resistance;
2. It can resist the erosion of acid, alkali and chemical solution, and the material itself is pollution-free;
3. Anti-slip;
4. Antistatic;
5. The secondary construction is simple, and the ground can be processed without joints;
6 .Easy to clean and maintain.
The abrasion resistance of the ground is the main requirement, which is also based on the need to reduce the amount of dust on the ground. At present, several types of floors commonly used in clean workshops of pharmaceutical factories are as follows:
Ground Features Application Scope
Double-layer ground can return air to the ground, good ventilation, high cost, poor flexibility, good comfort, vertical unidirectional flow clean room (large area) in pharmaceutical factories
The terrazzo floor is smooth and wear-resistant, not easy to dust, good integrity, washable, anti-static, non-elastic control area, clean area of pharmaceutical factory
The coating floor has the advantages of terrazzo, which is more wear-resistant but not drag-resistant, requires high substrate treatment, and is easy to curl and peel off the clean area of the pharmaceutical factory
The floor of the coiled material sheet is smooth and wear-resistant, slightly elastic, not easy to dust, easy to clean, easy to construct; easy to generate static electricity, easy to be aging by ultraviolet light, and easy to build up a large area in the control area of the pharmaceutical factory
The acid-resistant porcelain plate is corrosion-resistant on the floor; it is brittle and not impact-resistant, the construction is complicated, and the cost is high. There are corroded parts in the raw material workshop of the pharmaceutical factory
The FRP floor is corrosion-resistant and has good integrity; it is easy to bulge, and it is appropriate to use a small area in the raw material workshop of the pharmaceutical factory. There are corroded parts
Among the above-mentioned grounds, terrazzo ground is the most used before the implementation of GMP transformation in domestic pharmaceutical factories. In recent years, more and more pharmaceutical factories have used epoxy resin to self-level the ground. It is believed that terrazzo ground is prone to dust and construction is difficult. The quality is not easy to control and is not “modern” enough. Among them, easy to produce dust is the main reason why designers abandon the terrazzo floor.
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