Industrial Disc Filter System Equipment removes suspended solids from raw water and industrial process water through a compressed stack of precision-grooved filter discs. As water flows through the three-dimensional channels formed between the stacked discs, suspended particles are effectively captured, delivering consistent filtrate quality.
Configurable with either manual intervention or automated self-cleaning mechanisms, the system adapts to varying water quality, flow requirements, and maintenance schedules. It operates either as an independent mechanical filtration unit or as an integrated pretreatment stage within a larger industrial water treatment system.
Technical Specifications & Selection Parameters
|
Parameter |
Selection Criteria / Evaluation Factor |
|
Equipment Type |
Manual / Automatic Backwash |
|
Primary Application |
Raw Water Pretreatment / Process Water / Cooling Water Loop |
|
Rated Treatment Capacity |
Project-specific (m3/h) |
|
Filtration Rating |
Standard micron ratings (e.g., 20um to 200um) |
|
Operating Pressure |
Typically 0.2 - 0.8 MPa (Model dependent) |
|
Disc Material |
PP (Polypropylene) or specialized engineering plastics |
|
Housing Material |
Glass-reinforced polyamide, coated carbon steel, or stainless steel options |
|
Control Logic |
Differential pressure (Delta P) / Timer / Manual override |
Application Boundaries & Suitability
|
Application Environment |
Technical Suitability |
Critical Design Consideration |
|
Industrial Raw Water Pretreatment |
High Suitability |
Analyze Total Suspended Solids (TSS) and particle size distribution. |
|
Process Water Filtration |
High Suitability |
Match filtration rating to downstream equipment tolerance limits. |
|
Cooling Water Side-Stream |
Suitable |
Evaluate biological growth and scaling tendency. |
|
High Sand-Content Water |
Cautious (Requires Pre-separation) |
Heavy sand accumulation may cause disc wear; cyclone separation recommended upstream. |
|
RO / UF Membrane Safeguard |
Pretreatment Stage |
Acts as a mechanical barrier; does not replace fine ultrafiltration/membrane stages. |
Working Principle
The filtration process utilizes depth-surface interception combined with calibrated disc compression.
Filtration Phase: Raw water enters the housing inlet and is distributed across the exterior of the disc stack. Water passes through the intersecting grooves from outside to inside, retaining suspended solids along the multi-point channels while clean water discharges through the central core.
Backwash Phase: When differential pressure reaches the preset threshold (or the timer expires), the system initiates an automated backwash sequence. Hydraulic pressure releases the compression on the discs, and high-velocity reverse flow flushes out trapped particulates through the drain outlet.
Quality Control & Manufacturing Standards
1. Manufacturing & Processing Capabilities
Precision Molding: Filter discs are manufactured using high-precision molds to ensure uniform groove dimensions and consistent micron-rated filtration performance.
Component Machining: Structural housings and manifolds are produced using advanced CNC machining equipment to maintain precise dimensional tolerances for leak-free sealing and pressure integrity.
2. Factory Testing & Quality Inspection
Pressure Testing: Assembled housings and filter units undergo factory hydrostatic testing to verify pressure-bearing capacity and ensure zero leakage under rated operating conditions.
Functional Testing of Automated Valves: Automatic backwash systems undergo rigorous dry and wet testing to ensure reliable valve switching, correct differential pressure sensor calibration, and seamless PLC integration prior to dispatch.
Material Traceability: Raw materials for housings, seals, and filter elements are sourced from certified suppliers with material test reports (MTR) available upon request.
3. Compliance & Documentation Support
Engineering Documentation: Each delivery includes comprehensive technical manuals, General Arrangement (GA) drawings, piping and instrumentation diagrams (P&ID) where applicable, and maintenance instructions.
International Standards: Design and manufacturing practices adhere to recognized industrial engineering standards to ensure compatibility with global project specifications.
FAQ
Q: What is the primary advantage of a disc filter over a screen filter?
A: Disc filters provide a three-dimensional depth-surface filtration path via grooved channels, offering a higher dirt-holding capacity and more reliable particle retention compared to simple 2D wire mesh screens.
Q: Can an industrial disc filter remove dissolved solids or organic matter?
A: No. Disc filters are mechanical solid-liquid separation devices designed exclusively for suspended solids and particulate matter. Dissolved minerals or organics require chemical treatment or membrane separation.
Q: How is backwash water supplied in automated systems?
A: Backwashing can be executed using filtered water from adjacent operating units in a multi-unit system, or via an external clean water booster pump if a single-unit configuration is used.
Q: What data is required to request an accurate equipment proposal?
A: Engineers need the required flow rate (m3/h), raw water source, TSS concentration, particle size distribution, target micron rating, and available system operating pressure.
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