Pretreatment System

Pretreatment system

The pretreatment system is specially designed to produce juice, tea drinks, lactic drinks, aerated drinks, etc, which includes types of equipment, such as hot-water system, sugar melting system, recovery system, extraction system, milk power reconstitution system, monosaccharide system, saccharide system, mixing and allocating system, CIP system, plate or tube UHT sterilizers, mixers, vacuum degassing and aroma recycling system, homogenizing system, and control system.

As a long-standing supplier of various single-machines and complete-line equipment for beverage treatment to beverage companies at home and abroad, TECH-LONG can offer engineering consulting and technological design services tailored to the needs of clients, such as planning of equipment configuration, layout, process and auxiliary equipment for manufacturing shops.

no data

CIP system

CIP (Clean in Place) refers to the cleaning and sterilization of various equipment, including tanks and tubes, without the need for disassembly, which is achieved by alternately applying cleansing water and liquid detergent. The CIP cleaning solution or water stored in the tank is heated circularly through the heat exchanger. After reaching the cleaning process requirements (temperature and concentration) and under the joint action of acid, alkali and heat, the tank, pipeline and other equipment are washed by the pump at high pressure through the cleaning pipeline to meet the requirements of providing a safe and hygienic environment for production.


● According to different heating media, it can be divided into steam heating and electric heating;
● According to the number of tanks, it can be divided into single tank, double tanks (water tank, alkali tank), three tanks (water tank, alkali tank, acid tank), four tanks (water tank, alkali tank, acid tank, recycled water tank) and five tanks (water tank, alkali tank, acid tank, recycled water tank, hot water tank).
● According to the number of cleaning targets, it can be divided into single channel, double channels and multiple channels.

Sugar dissolving system

To prepare syrup, sugar is dissolved in a specific amount of hot water to create a syrup with a predetermined concentration. Afterward, the syrup is preserved through heat treatment and sterilization if required, followed by filtration and cooling. Sugar can be added directly into the storage tank through the manhole or by utilizing a circulating pump or spiral conveyor.

The filtration of syrup can be bag filtration, plate-frame diatomite filtration and vertical (or disc) diatomite filtration. In the case of sulfide sugar, activated carbon can be added to the syrup prior to diatomite filtration to remove color. 

Syrup cooling can be achieved through the heat recovery design, that is, using a plate heat exchanger where the product water is initially directed to the first stage to cool the syrup. The cooled syrup then enters the hot water tank, resulting in the reduction of syrup temperature and an increase in product water temperature to minimize energy consumption.

Extraction system

Extraction is to put tea leaves (or Chinese herbal medicines) in an extraction tank that stores water at a certain temperature for a period of time. The resulting mixture is then filtered, cooled, and separated for later use.

Extraction methods: 
● Hanging basket lifting
Bottom opening and overturning

Blending system

The blending system plays the role of final mixing, reaction, stability and uniformity of products. In adherence with the blending protocol, the blending tank is sequentially infused with syrups, primary and ancillary components, fruit juices, product water, and the like, thoroughly agitated and combined within the tank, minutely inspected for quality control, and left to stabilize before being conveyed to the following phase of the production process.

Control methods: manual swing arm type and automatic anti-mixing valve array type, etc.
Stirring methods: tank top mechanical stirring and jet pump circulating stirring, etc.

Sterilization machine

The sterilization machine utilizes a rapid high temperature process to kill the microorganisms that cause spoilage and deterioration of materials, while preserving the original taste and nutrients of the products. This precise method effectively prevents secondary contamination and significantly prolongs product shelf life.

Our sterilization machine uses the indirect heat treatment method for sterilization, where steam heats water to generate high-temperature hot water for product sterilization. By selecting bellows with high heat exchange efficiency and reasonable temperature difference between hot water and sterilization, our sterilization function can maintain its effectiveness for extended periods of time.

A heat recovery section is set up after the holding tube, where the product is cooled by low-temperature hot water. This process simultaneously increases the temperature of the hot water while reducing the temperature of the product, thereby saving energy.

The tubular heat exchanger adopts floating design to avoid the risk of rupture caused by thermal expansion and cold contraction. That is, the shell and inner tube are equipped with an O-ring structure that achieves a tight seal and eliminates thermal stress. The frame allows the pipe to move freely, preventing thermal stress when different parts experience varying degrees of heating. Moreover, an expansion joint tube heat exchanger is also available as an alternative.

Brazing heat exchanger is selected for the hot water system, which is composed of corrugated thin metal plate with high heat transfer efficiency and compact structure. his equipment is entirely gasket-free, so it is suitable for applications with high temperature and/or pressure. In addition, there is also a tube heat exchanger for option.

Mixing machine

The mixing machine is the core equipment for the processing of carbonated drinks,  responsible for ensuring thorough mixing and carbonation of treated water and the final syrup (containing various additives) in a certain proportion.

In 2004, our company developed an electronic flowmeter mixing machine. Compared with the traditional gravity mixing machine, it has the advantages of online adjustment of main technical indexes (Brix and gas content of products), simple operation, high precision and less material loss.

The working principle of the mixing machine is that the product water enters the degassing tank and is discharged by the water pump after vacuum degassing (deoxygenated water with lower oxygen content can be obtained by combining secondary degassing and increasing carbon dioxide replacement).The final syrup enters a syrup tank, and is mixed with deoxygenated water on-line by a syrup quantitative supply system (consisting of a syrup pump, a flowmeter and a regulating valve, etc.) according to a set ratio. The mixed solution is cooled by a heat exchanger, then transported to a jet device, where carbon dioxide is quantitatively added by a carbonation system (consisting of a pressure reducing valve, a filter, a flowmeter and a regulating valve, etc.). The product is then sent to carbonization tank, stored by cylinder pressure constant system, and finally sent to filling machine.

Key technology

To enhance product excellence, augment precise sugar and gas content, and minimize waste, our mixing machine can be equipped with an on-line detector for detecting sugar content and carbon dioxide.

A.Through the automatic correction control technology, the Brix and gas content of products that deviate from the set value automatically return to the set value, basically realizing the "zero" discharge of syrup and products in the whole process; 

B. In the event of prolonged production line downtime, the temperature of the product in the filling tank may rise. However, our product return control technology enables the product in the tank to be transported back to the mixing machine for cooling and gas level correction, and then sent to the filling machine to reduce the discharge.
Key technology
Water containing air is atomized through a nozzle and sprayed into a horizontal degassing tank under vacuum, which is then removed by a vacuum pump. During this process, some CO2 replacement can be added for better results. In order to obtain a lower oxygen content, a two-stage degassing system is optional.
Mixing ratio
The implementation of mixing ratio is based on the ratio of water to syrup, which is accurately and quickly automatically adjusted through a proportional valve under the continuous monitoring of an accurate flow meter.
Note: Automatic correction of product Brix sugar content can be achieved when equipped with a sugar meter
The mixed product is pressurized by a pump to form a local vacuum in the injector (Venturi tube), and CO2 is sucked into the injector, ensuring the uniformity and stability of CO2 in the product during filling. The carbon dioxide is controlled by a mass flow meter and a proportional valve, which makes the product's gas content more accurate and convenient to adjust.
Get in touch with us
Would you like to ask us a question, are you looking for a contact person or do you need help with a problem? Then simply fill in our contact form. We will get in touch with you as soon as possible.
Ready to work with us ?
Stock Code: 002209
Customer service