Screen changer, as a key filtration device, is widely used in the extrusion and polymerization reaction process of plasticized materials, and its main function is to filter out foreign particles and impurities to ensure the purity of materials. According to different classification criteria, screen changers can be subdivided into various types.

Structurally, screen changers mainly include plate screen changers and column screen changers. Among them, plate screen changer can be further subdivided into single-plate screen changer and double-plate screen changer; column screen changer includes single-column screen changer and double-column screen changer and other types. In addition, according to the different shapes of the screen, the column screen changer can also be subdivided into round mesh, oblong mesh, curved mesh and cylindrical mesh.

From the driving source, screen changers can be divided into manual screen changers and non-manual screen changers. Manual screen changer is compact, easy to install and more energy efficient, but the operation is relatively laborious and needs to be carried out manually; while non-manual screen changer, such as hydraulic screen changer, can be realized through the accumulator hydraulic station to change the net quickly, and there are many kinds of them, which can be chosen by the users according to the actual needs.

In addition, according to the process of changing the net whether you need to stop, net changer can also be divided into two categories of downtime net and non-stop net. Generally speaking, single-position screen changer needs to stop when changing the screen, such as single-plate single-position screen changer, single column single-position screen changer, etc.; and double-position or four-position screen changer can be realized without stopping to change the screen, to ensure the continuity of the production process.

When choosing the right type and model of screen changer, it is necessary to take into account a number of factors, such as material properties, output, pressure, material viscosity, continuous production time and the degree of automation. If you need, you can contact professional screen changer manufacturers, experienced engineers according to your specific working conditions for your selection and recommendation.