Pasteurized milk
Pasteurized milk takes fresh milk as ingredient, pasteurized then get final products. The pasteurized temperature is 72-85ºC, bacteria are killed but still keep milk nutrition and good taste at the same time. After centrifugal,filter,fat standardization,homogenizer,pasteurization and cooling, then filled and supply to consumers through cold chain.
General processing as below,
1.Raw milk reception and cooling
Milk tanker transport raw milk to raw milk reception station, raw milk reception pump connected to tanker with hygienic hose for milk shifting. Normally the line equipped with sight glass, filer,buffer tank, inline sampling valve, fine filter, PHE etc.
2.Raw milk storage
Milk silos used for raw milk storage, normally they're outdoors. Each silo could receive raw milk from reception line. Mixing-proof valve block makes it's possible that when one silo is feeding, another one could pumping to pasteurizer, and third one be CIP at the same time. No mixing
3.Milk pasteurization
Raw milk pumped into PHE from a buffer tank, the PHE include two sections which supply best centrifugal and standardization temperature.
Centrifugal separate fat at 55ºC, and fat standardization line feed a certain amount cream back into skimmed milk.
73-75ºC whole milk supplied to evaporator, solid proportion no less than 11.4%, evaporator working temperature is 64-66ºC.
In pasteurization section, milk is heated to 85ºC, and keep in holding tube for 15 seconds.
When pasteurization temperature lower than set value, shuttle valve shift milk back to buffer tank.
At final section, milk is cooled to 4ºC
90% heat exchange efficiency design reduce ice water and steam consumption remarkably.
The rest cream cooled down to 8ºC through cold milk.
Pasteurization temperature is 75-85ºC, it's stepless and adjustable, it could run stable at certain temperature of the range.
4.Pasteurized milk storage
Pasteurized milk stored in several tanks, each one could feed from pasteurizer, and discharged to filling machine or mixing system.
5.Cream storage and dispatch
Cream stored in several jacketed tanks, ice water used to keep tanks temperature. Cream could dispatched through discharge pump.
about STB
As a technology-based engineering company, STB focus on dairy,beverage,foods and cosmetic industries components and processing line design,manufacture,installation and commissioning.
STB team has powerful processing line design capacity and extensive project experience. All our project and process engineers are used to work in international engineering and products companies.
We use European project management system to ensure project implementation. Not just new components & line design, we also help clients to improve their existing process line to rise manufacturing ability as well as get better final products quality.
Service & Support:
STB also provide clients process suggestion which involved in engineering design. We have strict schedule during project implementation, after equipment delivered to clients site, we arrange installation and commissioning according to clients requirement till all parts run smoothly. But it's not the end, we are ready to provide technical support at any time after that, and arrive client' sites if required.