Detailed structure of single plate hydraulic screen changer

The Single Plate Type Hydraulic Screen Changer is a widely used device in plastic extrusion production lines. Below is a detailed introduction to it:

I. Basic Structure

The single plate type hydraulic screen changer primarily consists of a single filter plate, a hydraulic drive system, a melt channel, and related control systems. Its structure is compact with a reasonable design, facilitating easy installation and disassembly on extruders.

II. Operating Principle

During the plastic extrusion process, the melt passes through the melt channel of the single plate type hydraulic screen changer. When impurities are carried in the melt or when the filter screen needs replacing, the hydraulic drive system activates, pushing the filter plate to move, thereby achieving the replacement of the filter screen. The entire process is rapid and continuous, without the need to interrupt extrusion production.

III. Main Characteristics

High Pressure Resistance: The single plate type hydraulic screen changer can withstand high melt pressures, ensuring stable operation during high-pressure extrusion processes.

Continuous Production Capability: Rapid screen changes are achieved through the hydraulic drive system, eliminating the need to interrupt production and enhancing production efficiency.

Broad Application Scope: Suitable for almost all types of polymer extrusion production, such as films, sheets, pipes, and wire and cable products.

Ease of Maintenance: The structural design is reasonable, facilitating routine maintenance and care.

IV. Application Examples

Single plate type hydraulic screen changers are widely used in drip irrigation tube extrusion production lines. Due to the high melt pressures during drip irrigation tube extrusion and the requirement for continuous and stable production processes, the single plate type hydraulic screen changer meets these requirements. Additionally, its ease of maintenance and filter screen replacement reduces production costs.

V. Precautions

When using the single plate type hydraulic screen changer, regularly check the oil level and oil quality of the hydraulic system to ensure its normal operation.

The selection of filter screens should be determined based on the characteristics and requirements of the extruded material to ensure filtering effectiveness and production efficiency.

When replacing the filter screen, strictly follow operating procedures to avoid damaging the filter plate and melt channel.

In summary, with characteristics such as high pressure resistance, continuous production capability, broad application scope, and ease of maintenance, the single plate type hydraulic screen changer plays an important role in plastic extrusion production lines.

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