The hot washing machine is the heart of the PET bottle cleaning line. It is capable of removing difficult contaminants such as glues, oils, greases, and residual liquids. For PET bottle recycling, the hot water washing process is an important step in the production of high-quality “hot washed” PET flakes. Hot-washed flakes sell for a much higher price.
Difference between hot and cold washing
Plastic bottle recycling washing line includes cold washing and hot washing in two ways. Cold washing is directly into the rinsing tank for washing after crushing. In this process, the bottle caps that float in water are fished out. Hot washing refers to putting the crushed bottle pieces into the hot washing machine and steaming them. Add alkali or detergent to get out the greasy other stubborn impurities and PVC, etc.
Temperature and time of hot washing machine
The temperature of the hot washing machine and the control of time have a more critical impact on the quality of the bottles. According to the different bottle pieces, the temperature of hot washing in 85-95 ℃, not easy to exceed 100 ℃. Time in 15-25 minutes is appropriate, not easy to exceed 30 minutes. Because of a long time of high-temperature cleaning, the color of plastic bottles may have changed, and their characteristic viscosity will also be reduced.
Importance of hot washing machine
There are three washing processes in the plastic bottle recycling line. Hot washing is the first and the most important step. It is related to the acidity and characteristic viscosity of the bottle flakes. These two criteria determine the quality level of the bottle flakes and whether they can be sold at a good price.
Hot washing machine for sale
Shuliy Group’s hot water tank can be fed and discharged at the same time. In other words, there is no need to stop when adding material or discharging material. This ensures that the production line runs efficiently and reduces production costs. The hot washing machine sold by Shuliy Group has been well received by our customers. If you need high-quality hot washers, please contact us for purchase.
