Hot filling technique: “Liquid filling at room temperature is easier because the contact area of ​​the material does not change with the temperature difference of the material, and it is constant in terms of filling accuracy and filling speed. However, there are many constant adjustments in practice . Material media, sometimes they are relatively high, so that the equipment will have a certain expansion rate, which is taken into account at the beginning of the design of the equipment, so that the equipment has a certain elasticity. This is called mechanical production: The first design method. Predict the situation in advance and make specific corrections. Another is that the material starts at a high temperature, but slowly cools down during the filling process, and the beginning is low temperature, in the filling process. The temperature will slowly rise again. These conditions are difficult to solve by the filling equipment itself. This relies on some sponsored equipment to complete the filling process, such as the use of thermostatic tanks and holding tanks, so that the materials can be filled in the specific Maintain a certain temperature difference within the time, not too large and undulating, resulting in unstable filling. This is called "sponsored peripheral design method" in mechanical production. Although there are two Mechanical production theory, but to fundamentally solve the problem of hot filling accuracy and speed, but also need more advanced scientific theory and design methods. Swift Machinery is relying on the "first design method" and "sponsored peripheral design method", research and development More comprehensive filling of mechanical products.

Hot filling technology: the use of hot filling technology in PET bottled beverages on high-speed production lines

Since the warm filling technique in PET bottled beverages has been born in China, the filling production line using this technology has matured in just a few years and has formed a certain market scale. This technique is based on the temperature limit of ordinary PET bottles. Through the matching filling production line, filling environment and subsequent processes, the goal of product preservation is achieved without adding any preservatives. Through production practice, it has been shown that the beverages produced by non-heat-resistant PET bottles have reached the hygiene technical indicators of heat-resistant PET bottled beverages and the relevant national standards. The shelf life of the products has reached more than one year. This skill relies on the rational design of the filling system, the establishment of a complete packaging disinfection system and air purification system, a comprehensive and thoughtful SIP system and CIP system, and a comprehensive management of raw products.

With the rapid development of China's beverage industry, the development of high-temperature filling production lines for PET bottled beverages has become a must. Achieving high-speed heating and filling lines in PET bottled beverages is not a simple device amplification. Compared with the previous medium and low speed production lines, it is necessary to innovate and break through the empty bottle sterilization before filling and the inverted bottle sterilization process and equipment after filling. After several years of unremitting research and exploration, the PET bottled beverage medium-temperature filling production line has made a breakthrough leap in achieving high-speed, and the level of the whole line equipment is close to the current world advanced level.

1. The empty bottle sterilization of the medium and low speed production line adopts the conservative method of perfusion, maintenance and dumping of disinfectant. This method has many equipment links and large area, which is not suitable for the high speed of the production line. It is necessary to optimize the sterilization process of the empty bottle and simplify the sterilization equipment to meet the request for high speed of the production line. To this end, Jiangsu Xinmeixing cooperated with internationally renowned disinfectant production enterprises to replace the disinfectant used in the early stage with safer and more efficient disinfectant, and changed the sterilization process of the original packaging materials (bottle and bottle cap). That is, the original disinfectant infusion, retention, and pouring method is changed to the disinfectant spray method. The empty bottle sterilization adopts the method of inserting the nozzle into the bottle mouth to move the spray disinfection liquid, and is equipped with a high-efficiency spray nozzle imported from the United States, and the sterilization is thorough and safe. At the same time, the consumption of the disinfectant of the equipment is greatly reduced, which is only 1/3 of the original process consumption, and has the advantage of large thrift running cost. It simplifies the packaging material sterilization equipment, reduces the equipment footprint, and most importantly, is more suitable for high-speed medium-temperature hot filling production line. In addition, the sterilization of the bottle is carried out in a closed environment, the microorganisms are easy to handle, and the operating environment is sufficiently improved. It is easier to collect and treat the exhaust gas, which is beneficial to the environment and can protect the operator from the disinfectant.

2. The bottle sterilizing of the low- and medium-speed production line adopts the method of the chain conveyor belt with a long pouring time. The method covers a large area and needs to be supplemented with artificial righting bottles, which is not suitable for the initiative and high speed of the production line.