beverage filling machine ——Take you to a deeper understanding of the 500ml Coca Cola carbonated beverage production line

At present, there are 350ml, 500ml, 1L and 1.5L common carbonated beverage bottles in the market. We will design corresponding bottle types and capacities according to user requirements. The main ingredients of soda water are purified water, white granulated sugar and carbon dioxide gas. We mainly use purified water for blending, because the taste after blending should be better. Therefore, the customer needs to configure a complete RO reverse osmosis water treatment system, mainly including multiple filters for pretreatment and RO reverse osmosis. The source water can be tap water, groundwater, lake water, mountain spring water, etc. The pretreatment mainly includes quartz sand filter, activated carbon filter, ion softener, and precision filter. The tank body is made of 304 high-quality stainless steel, which is corrosion resistant and easy to clean. The finished purified water obtained through water treatment is mainly used for two purposes: batching and washing of empty bottles.


Next, we will explain the batching process. The main equipment includes high shear sugar pot, syrup filter, batching tank, chiller, plate heat exchanger, vacuum degassing tank, and carbon dioxide mixer. The motor of the high shear sugar melting pot has fast speed, and the sugar melting speed is fast under the high temperature environment, which can melt the white granulated sugar more finely and taste better. The batching process adopts cold blending, without heating the materials, and the auxiliary materials such as purified water, syrup, essence, etc. are added in proportion. Except for carbon dioxide gas, the rest of the ingredients are in place. Two batching tanks are required, one for batching, and one for the transportation of finished materials, which can ensure the normal and continuous operation of the entire assembly line.


There are several requirements for blending well prepared materials into carbon dioxide. First, the lower the temperature of the material, the better, close to 0 , as long as it does not freeze. Secondly, the purity of the material is that the less oxygen it contains, the better. Finally, the pressure during mixing must be high. Based on the above points, we need to configure a complete set of cooling system and carbon dioxide mixing system. The chiller cooperates with the plate heat exchanger to make the materials and cold water conduct heat exchange in the plate exchange. When the temperature of cold water rises, it returns to the chiller for cooling again. Continuous circulation can ensure that the temperature of cold water reaches constant temperature. The vacuum deoxidizer and mixing tank are generally built on the same machine body. After the materials are cooled, vacuum degassing is carried out immediately, and then carbon dioxide is mixed. The inlet end of the mixing tank is equipped with an atomization device. Under the strong pressure of the high-pressure feed pump, the material flows through the atomization device and becomes a fog instantly, increasing the contact area with carbon dioxide, so that carbon dioxide can be more effectively incorporated into the material.


The shorter the distance between the beverage mixer and the three in one equal pressure filling machine, the better, so as to minimize the temperature return of finished materials. The mixing tank is connected with the hydraulic cylinder of the filling machine through a pipeline, and the outer wall of the pipeline will be designed with a thermal insulation layer. A liquid level detector is installed inside the hydraulic cylinder. When the liquid level is low, a certain pressure will be released inside the hydraulic cylinder to make the internal pressure of the mixing tank higher than the internal pressure of the hydraulic cylinder, and the finished materials will flow into the isobaric hydraulic cylinder under the effect of pressure difference. When the liquid level is high, air intake operation will be carried out, the internal pressure of the hydraulic cylinder will increase, and the internal pressure of the mixing tank and the internal pressure of the hydraulic cylinder will reach a balance, and no material transmission will be carried out. The hydraulic cylinder is also equipped with a pressure detector. Before starting up, the pressure value will be set in advance. If the pressure value is lower than or higher than the pressure value, the air will automatically enter and exhaust to ensure the normal operation of the three in one equal pressure filling machine. Flushing, isobaric filling and capping are carried out inside the three in one filling machine. First, the high-pressure spray head is used to wash the inside of the empty bottle with pure water to remove the wind dust particles generated by the contact with the air inside the bottle. Then the isobaric filling is carried out. After the bottle mouth is in close contact with the sealing gasket of the filling valve, the bottle is inflated. When the pressure in the bottle is consistent with the internal pressure of the hydraulic cylinder, the isobaric filling valve automatically opens, and the carbon dioxide steam and water materials in the hydraulic cylinder slowly flow along the bottle wall to the bottom of the bottle, mainly to avoid foam during the filling process. This is why, with the same number of filling heads, filling soda is slower than filling ordinary non aerated drinks, such as pure water and fruit juice drinks. When the bottle is filled to the specified liquid level, the gas at the bottle mouth will be discharged before the bottle mouth leaves the filling valve to prevent the liquid in the bottle from spraying out due to the pressure difference. Then the bottle mouth leaves the filling valve and enters the next capping operation.


Because the filling temperature is generally 0-3 , a layer of fog water will appear on the surface of the bottle wall due to temperature difference under normal air environment, which is also called “sweating”. If self-adhesive labels and cartons are used for packaging, the water on the bottle surface must be removed first, otherwise the labels after labeling will fall off and the cartons will be wet. Under the condition of the user’s factory and sufficient funds, a bottle warming machine can be configured, which is similar to a small tunnel in shape. The bottle moves slowly along the conveyor chain. The upper spray head will continuously spray hot water. In about 20 minutes, the temperature of the materials in the bottle will slowly rise to normal temperature. With a dryer, the surface and bottom of the bottle can be dried. If it is a glass bottle, the bottle warming machine needs to be heated in sections, otherwise the bottle will burst due to excessive temperature difference.

Some people will say that it is OK to blow dry without a thermos machine? The experiment tells us that if the bottle is dried directly, there will still be fog on the surface of the bottle due to the temperature difference. Therefore, in order to dry the surface, a thermos machine must be equipped. If the back section is packaged with nested label and PE film, the water on the bottle surface will not affect it too much, so we can consider not configuring a bottle warming machine.


The laser printer is more and more popular with the majority of users. It can print the current production date on the surface of the plastic bottle, usually 1-2 lines. The quality of the printing depends on the clarity of the characters printed and whether the outline is rough. Although the equipment price is slightly higher than that of ink ink-jet printer, the cost of consumables in the later stage is low, and there will be no trouble of clogging the nozzle.

The glass bottles are generally labeled with self-adhesive labels. Select the model of the labeling machine according to the number of labels, including one label, two labels, three labels, etc. Labels are long-term consumables, while the cost of self-adhesive labels is slightly higher than that of PVC labels, but the self-adhesive labels do not need heat shrinkage, the text on the labels will not be deformed, and the appearance effect is a little higher.


The packaging machine is a machine for final packaging of finished products of aerated beverages after labeling. There are mainly two types of packaging available: film packaging and carton packaging. The fully automatic PE film heat shrinkable packaging machine is used to pack the labeled finished soda drinks, 9 bottles/pack, 12 bottles/pack or 24 bottles/pack. PE high temperature heat shrinkable roll film is a consumable for long-term use. According to the type of film wrapping machine, it can be divided into upper and lower roll film and single roll film, as well as color film wrapping machine.




Post time: Dec-02-2022