TXT

CLEANING IN PLACE (CIP)

By Samuel Murphy,2014-05-28 14:39
5 views 0
CLEANING IN PLACE (CIP)

     ??ÎÄÓÉlainhatle??Ï×

    pptÎĵµ?ÉÄÜÔÚWAP?Ëä?ÀÀÌåÑé???Ñ????ÒéÄúÓÅÏÈÑ?ÔñTXT???òÏÂÔØÔ?ÎÄ?þµ????ú?é????

     CLEANING IN PLACE (CIP)

     ???͵ØÇåÏ???

     1. What is CIP?

     As we know, hygiene considerations are of utmost importance in the food manufacturing process, so cleaning is considered as an integral part of food production.

     1. What is CIP?

     In closed equipment consisting of pipe systems??tanks??process apparatus, and so on. The single step of the cleaning procedure can be carried out by pumping the different cleaning solutions through the equipment. The equipment in the production line need not to be taken apart.

     2. Three types in CIP systems.

     single-use CIP systems ??µ??ÎÊ?ÓõÄCIPϵÍ??? reuse CIP systems ??ÖØ??Ê?ÓõÄCIPϵÍ??? multi-use CIP systems ???à?ÎÊ?ÓõÄCIPϵÍ???

     2. Three types in CIP systems.

     In CIP systems, the solutions are used only once in the single-use CIP system; If the solutions are recovered and stored, it is the reuse CIP system; and the multi-use CIP is a combination of both systems.

     2.1 single-use CIP systems

     2.1 single-use CIP systems

     Advantages: lower investment shorter feeding pipeline Disadvantages: higher running cost

     2.2 Reuse CIP system

     2.2 Reuse CIP system

     2.2 Reuse CIP system

     Advantages:

     lower running cost Better personal safety

     Disadvantages:

     higher investment long pipe work for supply and return has to be installed

     2.3 multi-use CIP system

     These disadvantages of single-use and reuse CIP systems can be overcome by the use of decentralized multiuse CIP systems in which local small standard units are placed close to groups of equipment to be cleaned, but they are fed with detergents from a centrally placed storage unit. After having been used in the local multiuse CIP unit, the detergent is returned to storage.

     2.3 multi-use CIP system

     3. CIP procedure

     water wash?úbase wash?úwater wash ?úacid cleaning ?ú water wash

     Water wash: when about to finish conveying materials, the water wash starts. The purpose is to discharge remainders. when water flown from equipment becomes clean, end this procedure.

     3. CIP procedure

     Base wash: Making up 2%NaOH in the lye tank, then 2%NaOH heated to 80?æby the plate heat exchanger (PHE) flows through the equipment about 30min.The aim is to solute protein and milk fat. Water wash after the lye is discharged, clean the wash: equipment with water about 15min. Acid cleaning: Making up 2% HNO3 in the pickling tank, then 2% HNO3 heated to 80?æ by PHE circulates in equipment about 30min. - Water wash: After the acid is discharged, clean the equipment with water about 15min.

     4. Detergents

     The process of soil detachment is rather complex in nature, which means that there is no single chemical compound able to perform each step perfectly. In practice, a blend detergents will be used, made of the following components:

     4. Detergents

     ?? 1 ?? Alkalies: sodium hydroxide, Nacarbonate, Na-hydrogen carbonate, and trisodium phosphate are the main components to detach organic soil such as protein, carbohydrates, and fat. ?? 2 ?? Acid: nitric, phosphoric, sulfamic, hydroxyacetic, glucomic, citric, lactic are used to clean surfaces from inorganic soil.

     4. Detergents

     ??3??Complexing and sequestering agents: orthophosphates polyphosphates, and its salts, and glucomic acid and its salts will bind calcium and magnesium ions in the solution, avoiding deposits on the surfaces, and will loose and disperse the soil. (4) Surface-active agents: anionic surfactants, and nonionic surfactants are used to eliminate fatty soils which are not soluble in water.

     4. Detergents

     (5) Other components: suspending agents, corrosion inhibitors, antifoaming agents, and enzymes are other parts of modern tailormade cleaner.

     5. CIP circuit

     The decentralized multiuse CIP system is a volume-controlled CIP unit incorporating a batch tank to which cleaning media is added. The volume of each cleaning media corresponds to the required volume of each cleaning circuit. The batch of cleaning media is pumped through a plate heat exchanger, where it is heated and then circulated through this short cleaning circuit at a high flow rate up to 50000 L/h.

     5. CIP circuit

     When cleaning pipelines, the batch tank is used as a header. If the capacity of batch tank is insufficient, liquid is added to it while

the circuit is being filled.

     6. CIP equipment

     The multiuse CIP unit is designed for cleaning in place (CIP) of tanks and pipelines. It works with automatically controlled programs comprising different combination of cleaning sequences, in which water, lye,acid, and highly diluted acid solution (acidified rinse)are circulated through the cleaning object for varying lengths of time and at varying temperatures.

     Summary

     What is CIP? Three types in CIP systems CIP procedure Detergents CIP circuit CIP equipment

??TXTÓÉ??ÎÄ?â????ÏÂÔØ:http://www.mozhua.net/wenkubao

Report this document

For any questions or suggestions please email
cust-service@docsford.com