screen changer network group replacement mode

screen changer network group replacement mode

There is no need to shut down and spend labor. According to its design, it can be divided into two main types: interchangeability screen changer and continuous screen changer.

The interchangeability screen changer has two identical groups. One of them is installed on the melt flow path. When the net group becomes dirty, replace it with another set of clean groups. At the same time, the old same group was replaced. The two sets of nets are mounted on the same steel plate, revolve around one axis, or slide along the guide rail in a straight line. The former is operated manually by lever, while the latter uses hydraulic pressure to move back and forth from one side to the other. Another way to replace the net is to use a valve to make the solution flow from the blockage of the same group to the new group.

Continuous mesh screen changer: the continuous net changer moves the new network gradually to the melt flow while removing the old network. The speed of changing the network can be automatically adjusted according to the impurity quality. The continuous net changer can eliminate the pressure and melt temperature changes caused by intermittent operation.

A group of continuous mesh screen changer is designed according to the rotating skateboard. Some nets are arranged on the periphery of the ratchet mechanical driven turntable. Turn the turntable, the old used group will move out of the melt flow and replace it with the hand before touching the melt flow.

There are also some machines that use long strip nets (usually 120 feet long). When a long strip net enters or leaves the machine part, a small amount of plastic is cooled and hardened to prevent polymer leakage. The machines are pulled out of the filter with external hydraulics. Another design is to use the pressure in the head to pull the screen out without external force.