What are the pollution sources in the clean workshop

Many customers have built clean workshops in accordance with the standards, but the products produced are still unqualified, and they feel that the effect of clean workshops is not large. In fact, this situation is more due to the lack of a thorough understanding of the definition of clean workshop. At present, there are still many manufacturers who think that the color steel plate is separated, and the ultraviolet lamps, air conditioners, dehumidifiers, ozone machines, etc. are installed, which are clean workshops. In fact, this understanding is very one-sided. First of all, let's understand the difference between the number of dynamic particles and the number of static particles in the clean workshop. Generally speaking, the standard of 10,000-level clean workshop refers to the standard achieved by the entire clean workshop under static conditions. What are static conditions? Simply put, there are no workers in the workshop, the machines are not started, there is no material transportation, etc., and the workshop is completely in a non-production state. In this case, since the particles and bacteria brought in by the outside world are not counted, the cleanliness of the clean workshop is higher and better maintained than that during production. Once the production starts, that is, the workshop is in dynamic production conditions, there will be many potential sources of pollution, and it will be more difficult to maintain the cleanliness of the clean workshop. The following is a brief introduction to the pollution sources in the clean workshop under dynamic conditions? 1. Pollution caused by work clothes After the staff enters the production workshop, the dust and bacteria on their bodies will also be brought into the workshop, and the movement of the staff will bring dust and bacteria pollution. Therefore, the selection of clothing materials and styles is very important. Generally, it is recommended that food factories choose clothing materials with smooth surfaces that are not easy to generate static electricity, such as pure polyester or nylon. The style is best to choose full-cover work clothes. In addition, it is best to change and wash work clothes every day. It is recommended to use a washing product with better decontamination effect to soak for a period of time, which will significantly reduce the bacteria and dust in the work clothes. 2. Pollution brought by the staff The staff themselves are also a major source of pollution in the clean workshop. The staff's hands are unclean, the nails are too dirty and too long, the work shoes are too dirty, the staff's hair and dander fall off, and they speak, cough, Sneezing, inflamed skin wounds, etc. can seriously reduce the cleanliness of the workshop. It is recommended that the personnel in the clean workshop should be arranged reasonably, so that the raw and cooked process personnel do not cross, do not cross posts, and do not arrange too many personnel. The staff should pay attention to personal hygiene, cut their nails frequently, wash their hair frequently, change their clothes frequently, and wash their hands when entering the pharmaceutical cleanroom. Disinfection, changing work shoes, work clothes, wearing gloves and masks, and re-entering the workshop after leaving the workshop, you need to complete the washing and changing procedures again. 3. Pollution caused by material transportation Material transportation is also an aspect that brings pollution sources. The materials entering the clean workshop must be cleaned or unpacked (woven bags, outer boxes, barrels, etc.) and then enter the workshop through the transfer window to prevent the pollution of the clean workshop decoration due to dirty materials. 4. The production equipment and site are not cleaned up in time and cause pollution. After each production, there will be some product debris and residue left in the production equipment, packaging chain, conveyor belt or site. The staff needs to clean up these pollutants in time. The products produced by food factories are generally very conducive to the growth of microorganisms. Once the product debris is not cleaned up in time, harmful microorganisms such as bacteria and molds will multiply and spread in the air, which may contaminate the products at any time. Therefore, food manufacturers need to carefully clean up before and after each production, leaving no dead ends. After a long period of production, such as about 1 month, the workshop needs to be thoroughly disinfected and cleaned. 5. Pollution caused by the air system and pipelines The air circulation system in the clean workshop, whether it is high-efficiency, medium-efficiency or coarse-efficiency, should regularly find professional manufacturers to clean and disinfect the entire clean system. If maintenance and cleaning are not performed for a long time, the air supply ducts and filters may accumulate condensed water and accumulate dust due to temperature differences, breed various microorganisms, and then blow down on the surface of the product through air transmission, causing secondary pollution. The filters of dehumidifiers, air curtain machines, etc. also need to be disassembled and washed frequently. 6. Pollution caused by mildew on the wall The rainy season or the dripping water level of the air conditioner is the most likely to cause damp and mildew on the wall, especially in the southern coastal areas. Many manufacturers disapprove of it, but ignore that this is the main source of pollution that causes a large number of products to grow mildew. If there is a large area of u200bu200bmold on the wall, it is recommended to stop production immediately for rectification, repaint the wall with lime water or change it to a tile wall, and arrange for production after formaldehyde fumigation and disinfection. The cleanliness of the clean workshop is mainly reflected in the maintenance of the air system and the management of hygiene details. If there is negligence, it will have an adverse impact on the quality and safety of the product.

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