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UHT Milk Processing Line
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UHT Milk Processing Line

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Introduction


UHT Milk Processing Line(ultra-high temperature processing line) is a modern dairy processing system that processes raw milk through ultra-high temperature sterilization technology and achieves a shelf life of dozens of times under refrigerated production conditions.

UHT milk, or ultra-high temperature milk, is a type of milk that has been treated to extend its shelf life significantly. The milk is heated to at least 135°C (275°F) for a few seconds, which kills harmful bacteria and allows it to be stored without refrigeration until opened.


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Feature And Advantage


Benefits of UHT Milk Processing Line:

  • Convenience: Its long shelf life makes UHT milk a practical choice for households, travel, and emergency supplies.

  • Safety: The UHT Milk Processing Line process effectively eliminates pathogenic bacteria, enhancing food safety.

  • Cost-Effectiveness: The UHT Milk Processing Line ability to store without refrigeration reduces storage costs.


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>> Production Process

1. Per hr capacity considered is 2000LPH as mini, average 100,000l-200,000l daily.

2. Fresh milk by selection (Fat content 4% / SNF 8.5%) to ensure quality and safety.

3. Milk is received either weighbridge or flowmeter to calculate quantity,

4. Incoming milk fast cool to 4℃ and storage by insulation tank to further process

5. Milk is initially filtered to remove impurities. This step may also include cream separation, depending on the desired fat content.

6. During milk standard processing, degassor could be considered to remove air and prevent oxidation, and homogenizer to improve the milk texture and stability.

7. Homogenized milk is rapidly heated to an ultra-high temperature (at least 135°C or 275°F) for a few seconds. This process effectively kills harmful bacteria and extends shelf life.

8. The sterilized milk is transferred into sterile packaging containers in a controlled hygienic environment and immediately sealing to maintain sterility and prevent any external contamination.

9. After each production, full system will get washing by recycle CIP for sanitary.


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Main Equipments


>> Main Equipments of Pasteurized Milk Processing Line:

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UHT Milk Processing Line undergoes a series of steps such as raw material preparation, pretreatment, homogenization, ultra-high temperature sterilization, aseptic filling, and packaging. Here are the main steps and equipment involved:


1. Raw Material Preparation

Equipment: pump, filter, PHE, milk tank

Process: Normally receive milk 1-2bath /day at morning(6-8am)/ afternoon(4-6pm), fast collect and store into bigger jacket milk tank, filter out impurities, and fast cooling to ensure milk quality.


2. Milk Standard Process

Equipment: Centrifuge, Blending tank, Degassor, Homogenizer

Process: to guarantee each product same protein, fat content, flavor etc data. Should by mixing system for standard, then by homogenizer, the fat globules in milk are broken down into smaller particles under high pressure to improve uniformity and enhance product stability. This process typically occurs at temperatures between 55°C and 65°C.


3. Ultra-high Temperature Sterilization

Equipment: UHT sterilizer such as tube heat exchanger or steam injection.

Process: Heat milk to 135°C-145°C for 2 to 5 seconds. This high-temperature, short-time sterilization method can effectively kill microorganisms while retaining the nutrients and flavor of milk as much as possible and fast cool the milk to below 25°C to maintain quality.


4. Packaging and Distribution

Equipment: Aseptic Filler such as aseptic brick carton, or aseptic bag in box.

The milk is then put into cartons, plastic bottles or Tetra Pak packs in a sterile environment. Once packaged, UHT milk can be stored at room temperature for long periods of time, with a typical shelf life of 3 to 6 months. easy to transport and distribute.


5.CIP System

A CIP system is provided cleaning function for milk handling equipments including heat exchangers, pumps, interconnecting pipes & valve fittings. The system is designed for both acid / alkali and water washing by loop circulation. 

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To guarantee the aseptic, there is two point:

1.Sterilization for Packaging Material:

The inside of the carton boxes is sterilized using hydrogen peroxide(H₂O₂) or steam, ensuring that the packaging is free from any bacteria or contaminants before filling.


2.Aseptic Chamber and process for Filling:

Before filling, full system will do SIP process to guarantee all pipping and chamber in a aseptic environment, then UHT milk is pumped into the sterile cartons without exposure to air or any potential contaminants.


Equipment List and Technical Parameters


Customizable UHT Milk Processing Line. The UHT Milk Processing Line capacity range is 500l/h-20000L/h. The following data takes the UHT Milk Processing Line capacity of 3000l/h as an example for reference.


Equipment

Capacity

Material

Powder(KW)

Size(mm³)

QTY

Centrifugal Pump

10000L/H

SUS304

0.75

350x300x320

1

Flowmeter

10000L/H

SUS304

-

300x200x300

1

Plate heat exchange

10000L/H

SUS304

-

1600x600x1500

1

Storage tank

12000L

SUS304

2.2

2200x2200x5000

2

Centrifugal Pump

3000L/H

SUS304

0.75

350x300x320

2

Mixing tank

3000L

SUS304

1.5

1350x1350x2100

3

Centrifuge

3000L/H

SUS304

11

1800x1200x1750

1

Degasser

3000L/H

SUS304

2.2

1300x1450x2350

1

Homogenizer

3000L/H

SUS304

22

1500x1100x1200

1

UHT sterilizer

3000L/H

SUS304

12

5000x2200x2500

1

Aseptic filler

4000-9000Bag/H

SUS304

43

5800x1800x3400

1


Utilities: In this proposal, energy data as below:

Total power: 95kw

Cooling water consumption: 10T/h, temperature: 2℃

Compressed air : 0.6m3/min, 0.6Mpa

Steam consumption: 240kg/hour


>> Common Parameters:

Raw material

Raw milk

Final product

Whole milk, semi-skimmed milk, skimmed milk

Capacity

2000L-20000L/H

Final product package

Bag/Tetra Pak etc

Filling temperature

Normal temperature

Storage conditions

Normal temperature

Shelf life

3-6months


Service


  1. Providing professional solutions as project consultant

  2. Cooperate with top manufacturers to provide reliable product for customers

  3. UHT Milk Processing Line have own engineer team focused on mechanical design and solve various mechanical problems

  4. UHT Milk Processing Line have site engineer team focused on project installation and commissioning

  5. UHT Milk Processing Line will be tested before the delivery

  6. Long-term accessories supply


>> FAQ

Q:What’s this UHT Milk Processing Line suitable for ?

A:fresh milk, yoghurt, cream, soybean milk, etc dairy proces.

 

Q:how about the invest budget?

A:We need to know the end product type and package for market,

      Raw material feeding, capacity for the plant then help u analyse the feasibility.

 

Q:How about the after sale service ?

A:our own engineer guide and match with local engineer team.


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