SELF-CLEANING SEPARATOR

What is a Self-Cleaning Separator?

A self-cleaning separator is a device that can separate different phases of a mixture without the need for manual intervention, commonly used for separating liquids and solids. These separators typically feature a disk separator design and are equipped with automatic or continuous cleaning mechanisms to effectively remove accumulated particles or contaminants from the separation elements. Such devices are widely used in industries such as oil and gas, wastewater treatment, food processing, and pharmaceuticals.

Structure and Working Principle of Self-Cleaning Separators

In many industrial processes, especially those involving liquids with a high solid content (up to approximately 10%), it is necessary to periodically discharge accumulated solids during operation. The self-cleaning separator uses a drum-based design combined with an automatic discharge mechanism to achieve efficient solid-liquid separation and continuous processing.

Structural Composition

• Drum and Disc Stack: The feed suspension enters the drum from the top through a feed pipe and flows into the disc stack. Typically, a set of conical discs is used to create a large clarification area within the relatively small volume of the drum.
• Solid Discharge System:Multiple solid discharge outlets are evenly distributed around the drum. These outlets are controlled by a movable sliding piston located at the bottom of the drum. The opening mechanism is hydraulically driven, with water generally used as the control medium, and low-viscosity organic fluids used in special cases.

Working Principle

• Separation Process: The feed suspension enters the drum, where solid particles are forced to settle into a solid containment space within the disc stack. The heavy liquid phase and solid phase flow to the outer periphery of the drum, while the light phase flows towards the center of the drum and is pumped out under pressure for further processing.
• Solid Discharge Mechanism: The hydraulically driven sliding piston descends at preset time intervals, forcing the solid discharge outlet at the bottom of the drum to open, thereby enabling intermittent discharge of solids. Discharge can occur in two modes:
  • Complete Discharge: When the feed valve is closed, all materials in the drum are discharged.
  • Partial Discharge: When the feed valve is open, only a portion of the materials in the drum is discharged.
• Automatic Cleaning Function: At the end of the production cycle, the separator will automatically perform on-site cleaning. With the installation of appropriate control devices, full automation of the operation is achievable.

Types of Huading Self-Cleaning Separators

Self-Cleaning Disk Separators

These separators feature a disk-based structure that efficiently separates solids and liquids or two immiscible liquid phases. The disk design allows for a high surface area in a compact space, particularly in applications where the solids content is relatively high.

Self-Cleaning Centrifuges

Self-cleaning centrifuges can be divided into two categories based on the type of separation they perform:

• Purifiers: These are designed for the separation of solids and two immiscible liquid phases in a single continuous process. They are used when there is a need to efficiently separate two liquid phases along with solids, making them suitable for applications in industries like chemical processing or oil refining.
• Clarifiers: These are used to separate solids from a single liquid phase, primarily for clarifying liquids. They are commonly employed in wastewater treatment, food processing, and other applications where the goal is to clarify the liquid by removing suspended solids.