Screen Changer - Continuous Polymer Filtration

The continuous screen changer, as the name implies, is to easily realize automatic screen change without stopping the machine. This breakthrough saves the generation of waste (traditional screen changers need to be stopped to change the screen, and a large amount of raw materials will be scrapped when the machine is stopped. ), also saves labor costs and time (traditional manual screen changers require staff to manually change the screen every time, and it takes ten to twenty minutes each time).

The non-stop screen changer has the characteristics of continuous production and convenient screen change, and is an ideal supporting device for the extrusion granulator. The non-stop screen changer is generally composed of a screen changer body, a filter screen, a porous plate, a plunger and a heater. The plastic melt flows through the filter screen on the plunger, and impurities gradually accumulate in the filter screen. The melt pressure rises with the accumulation of time, and the filter screen should be replaced in time when it reaches the load that the equipment can bear. When replacing the filter screen, first pull out the upper plunger until the filter screen is exposed from the body, and then replace the filter screen. After the upper plunger returns to its original position, replace the filter screen in the lower plunger in the same way to complete a screen change process. This type of non-stop screen changer has a simple structure and is suitable for extrusion production with relatively clean raw materials.

Non-stop dual-channel screen changer is an improved technical scheme for non-stop screen changing device for plastic machinery. Including the front and rear platens and the corresponding inlet and outlet ports, which are characterized by the cavity formed by the cooperation of the front and rear platens has two material channels, and correspondingly has two slides up and down, and a set of shunt filter plates are arranged in the upper and lower slide lanes. The screen changer has scientific design and reasonable structure. The structure of dual channels is adopted to ensure the relative balance of material flow in the process of screen change, and improve product quality and production efficiency.

screen changers are a high-quality solution for melted material filtration in granulation lines.

TIPS: Continuous screen changer is suitable for materials with relatively large fluidity such as elastomers, but not for fillers.