Multi-Stage Filtration Module for Molten Metal

Product Specifications

Technical details and manufacturing context for Multi-Stage Filtration Module

Definition

The Multi-Stage Filtration Module is a critical component within the Smart Molten Metal Degassing and Filtration System. It employs multiple filtration stages with progressively finer media to effectively remove non-metallic inclusions, oxides, and other contaminants from molten metal, ensuring high-quality metal output for casting and manufacturing processes. The module is designed for the basic metal manufacturing industry and is typically used in applications where stringent cleanliness of molten metal is required. It features a refractory steel casing, high-temperature insulation, and ceramic foam filters. The filtration stages range from 3 to 5, with filtration efficiency of 99.5–99.9% for particles larger than 10 μm, as per ISO 16889. The maximum operating temperature is 800–1200°C, and the operating pressure is 1.0–1.6 MPa. The flow rate ranges from 5 to 50 L/min, with a pressure drop of 0.05–0.3 MPa. Media pore size is 5–50 μm (ISO 16889). The housing material is SS316L (ASTM A240), filter media material is SiC, and seal material is graphite. Dimensions are 300–600 × 200–400 × 200–400 mm, weight 50–150 kg, and connection size DN50–DN150 (ISO 7005). These values are reference ranges and must be verified with the legal manufacturer or supplier for the specific model and application. The module is not a standalone product but a component of a larger system; its performance depends on proper integration and maintenance.

Working Principle

Molten metal flows sequentially through multiple filtration stages, typically starting with coarse ceramic foam filters to capture larger inclusions, followed by finer mesh or porous media filters to remove smaller particles. Each stage targets specific impurity sizes, with the filtration efficiency increasing as the metal passes through the system. The progressive reduction in pore size allows for effective removal of contaminants while balancing pressure drop. The module is designed to operate within specified temperature and pressure ranges, and the media must be replaced when pressure drop exceeds the recommended limit, indicating clogging.

Common Materials

Ceramic foam, Refractory steel casing, High-temperature insulation

Technical Parameters

Parameter	Typical range	Notes & selection driver
Filtration Stages	3–5 stages	Higher stages improve impurity removal but increase pressure drop.
Filtration Efficiency	99.5–99.9 %	For particles > 10 μm; lower efficiency may allow inclusions.ISO 16889
Maximum Operating Temperature	800–1200 °C	Above 1200°C, ceramic media may degrade.
Flow Rate	5–50 L/min	Higher flow reduces residence time and may lower efficiency.
Pressure Drop	0.05–0.3 MPa	Excessive drop indicates clogging; replace media.
Media Pore Size	5–50 μm	Smaller pores capture finer particles but increase pressure drop.ISO 16889
Housing Material	SS316L	Corrosion-resistant; suitable for high-temp molten metal.ASTM A240
Filter Media Material	SiC	Silicon carbide ceramic; thermal shock resistant.
Seal Material	Graphite	High-temperature seals; PTFE not suitable above 260°C.
Dimensions (L×W×H)	300–600 × 200–400 × 200–400 mm	Custom sizes available; footprint affects installation.
Weight	50–150 kg	Heavier units require structural support.
Connection Size	DN50–DN150 mm	Flange or threaded; must match piping.ISO 7005

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Primary Coarse Filter Part
Initial filtration stage that removes large inclusions and slag particles

Material: Ceramic foam
Secondary Medium Filter
Intermediate filtration stage that captures medium-sized impurities

Material: Ceramic foam with finer pores
Tertiary Fine Filter Part
Final filtration stage that removes microscopic inclusions

Material: High-density ceramic or mesh
Filter Housing
Structural enclosure that holds all filtration stages and directs metal flow

Material: Refractory steel
Thermal Insulation Layer Part
Maintains optimal temperature of molten metal during filtration process

Material: High-temperature ceramic fiber

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Smart Molten Metal Degassing and Filtration System

View system integration details

Manufacturers of Multi-Stage Filtration Module

Manufacturer profiles associated with Multi-Stage Filtration Module.

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Frequently Asked Questions

What is the typical number of filtration stages in this module?

The module typically has 3 to 5 filtration stages. The number of stages affects impurity removal and pressure drop; higher stages improve removal but increase pressure drop. The exact number should be confirmed with the supplier for the specific model.

What is the filtration efficiency for particles larger than 10 μm?

The filtration efficiency is 99.5–99.9% for particles larger than 10 μm, as per ISO 16889. Lower efficiency may allow inclusions to pass, so it is important to verify the actual efficiency for your application.

How do I know when to replace the filter media?

Monitor the pressure drop across the module. The normal pressure drop is 0.05–0.3 MPa. An excessive drop indicates clogging, and the media should be replaced. Regular maintenance is essential to ensure consistent filtration performance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0.1 to 2.0 bar (gauge)
flow rate:	0.5 to 20 m³/h
temperature:	600°C to 1200°C
slurry concentration:	Up to 15% solids by volume

Multi-Stage Filtration Module

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

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