Editorial Technical Reference

Mineral Filler System

This page explains how Mineral Filler System is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A subsystem within an asphalt mixing plant that stores, meters, and precisely adds mineral filler materials to the asphalt mix.

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Product Specifications

Technical details and manufacturing context for Mineral Filler System

Definition
The Mineral Filler System is a critical component of asphalt mixing plants responsible for handling fine mineral materials (typically smaller than 0.075mm) that are added to asphalt mixtures to improve density, stability, and durability. It consists of storage silos, conveying mechanisms, weighing systems, and discharge controls that work together to ensure accurate proportioning of filler materials according to mix design specifications. The system is designed for integration into batch or continuous asphalt plants, with capacities ranging from 10 to 50 t/h and storage volumes from 20 to 100 m³. Metering accuracy is ±0.5% per GB/T 17808, ensuring consistent mix quality. The system operates on three-phase power at 380 V ±10% (IEC 60038) and 50/60 Hz, with an operating temperature range of -20°C to 50°C. Ingress protection is rated IP54 to IP65 (IEC 60529) for dusty environments. Construction materials include carbon steel, stainless steel, and wear-resistant alloys, with standard grades Q235B/16Mn (GB/T 700, GB/T 1591). The system's weight ranges from 5 to 20 tons, and its footprint varies from 6×3×4 to 12×5×8 meters. Motor power is 5.5 to 22 kW, and screw conveyor speed is adjustable from 20 to 120 r/min. The system includes load cells for precise weighing and computerized controls for automated operation. It is essential to verify model-specific values and standards with the legal manufacturer or supplier, as these are reference ranges. The system is designed for durability and reliability in demanding asphalt production environments, with options for wear-resistant linings for abrasive fillers. Proper maintenance and calibration are necessary to maintain accuracy and extend service life.
Working Principle
Mineral filler is stored in dedicated silos and transported via screw conveyors or pneumatic systems to a weighing hopper. The system uses load cells or similar weighing technology to measure precise quantities before discharging the filler into the asphalt mixer. Computerized controls regulate the entire process based on batch formulas and production requirements. The system ensures accurate proportioning, which is critical for mix quality. Operators can adjust screw conveyor speed to control feed rate, and the system operates within specified temperature and voltage ranges. Regular calibration of weighing components is essential to maintain metering accuracy.
Common Materials
Carbon steel, Stainless steel, Wear-resistant alloys
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Capacity10–50 t/hMatches plant output; higher capacity requires larger silo and screw conveyor.
Storage Volume20–100 Determines continuous operation time without refill.
Metering Accuracy±0.5 %Ensures mix consistency; lower tolerance increases cost.GB/T 17808
Screw Conveyor Speed20–120 r/minAdjustable for feed rate control.
Motor Power5.5–22 kWDepends on capacity and material characteristics.
Operating Voltage380 ±10% V ACThree-phase; other voltages available on request.IEC 60038
Operating Frequency50/60 HzAuto-switching or manual selection.IEC 60038
Operating Temperature-20–50 °CBelow -20°C material may freeze; above 50°C affects motor cooling.
Ingress ProtectionIP54–IP65IP65 for outdoor dusty environments.IEC 60529
Material of ConstructionQ235B/16MnWear-resistant lining optional for abrasive fillers.GB/T 700, GB/T 1591
Weight5–20 tAffects foundation and transport requirements.
Footprint (L×W×H)6×3×4–12×5×8 mVaries with capacity; check site clearance.

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
  • Filler Silo
    Stores mineral filler material, typically equipped with level indicators and aeration systems to prevent bridging
    Material: Carbon steel
  • Screw Conveyor
    Transports filler from storage to weighing hopper using rotating helical flights
    Material: Carbon steel with wear-resistant liners
  • Weighing Hopper
    Measures precise quantities of filler using load cells before discharge to mixer
    Material: Stainless steel
  • Discharge Gate
    Controls the release of filler from weighing hopper to mixer, ensuring accurate timing and quantity
    Material: Carbon steel with rubber seals
  • Pneumatic Systems Optional
    Blow filler to the weigh hopper on pneumatically conveyed plants.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Mineral Filler System.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 0.5 bar (7 psi) - low pressure conveying systems
flow rate: 0.1 to 10 tons/hour - typical mineral filler addition rates
temperature: Ambient to 60°C (140°F) - typical operating range for mineral filler storage and handling
material storage: 5 to 50 tons - silo capacity range
slurry concentration: Not applicable - dry powder handling system
Media Compatibility
✓ Portland cement powder ✓ Limestone dust ✓ Fly ash
Unsuitable: Wet or high-moisture content materials (>5% moisture)
Sizing Data Required
  • Required production capacity (tons/hour of asphalt mix)
  • Mineral filler percentage in mix design (typically 5-15%)
  • Available plant footprint and silo storage requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Abrasive wear in conveying components
Cause: High concentration of fine, hard mineral particles causing erosion in screw conveyors, pumps, and piping, especially at bends and transitions
Material buildup and bridging
Cause: Moisture absorption in mineral fillers leading to agglomeration, compaction, and flow obstruction in hoppers, silos, and transfer points
Maintenance Indicators
  • Abnormal increase in motor amperage or power consumption during material transfer operations
  • Visible dust leakage or audible hissing at connections, seals, or filter points indicating pressure buildup or seal failure
Engineering Tips
  • Implement regular moisture monitoring and controlled drying of mineral fillers before storage to prevent agglomeration and maintain flowability
  • Install wear-resistant liners (ceramic or polyurethane) at high-impact areas and optimize transfer velocities to minimize abrasive erosion

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 3262-20:2021 - Extenders for paints - Specifications and methods of test - Part 20: Fumed silica ASTM D1208-96(2021) - Standard Test Methods for Common Properties of Certain Pigments EN 13263-1:2005+A1:2009 - Silica fume for concrete - Part 1: Definitions, requirements and conformity criteria

Quoted from the published standard.

Manufacturing Precision
  • Particle Size Distribution: D50 +/- 5% of target value
  • Moisture Content: Maximum 0.5% by weight
Quality Inspection
  • X-ray Fluorescence (XRF) Analysis for chemical composition
  • Laser Diffraction Particle Size Analysis

Manufacturers of Mineral Filler System

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Frequently Asked Questions

What is the typical capacity range of a Mineral Filler System?

The rated capacity typically ranges from 10 to 50 t/h, depending on the plant output. Higher capacities require larger silos and screw conveyors. Confirm the exact capacity for your model with the manufacturer.

How is metering accuracy ensured?

The system uses load cells or similar weighing technology to measure filler quantities. Metering accuracy is ±0.5% per GB/T 17808. Regular calibration is necessary to maintain this accuracy.

What materials are used in construction?

Common materials include carbon steel, stainless steel, and wear-resistant alloys. Standard grades are Q235B/16Mn per GB/T 700 and GB/T 1591. For abrasive fillers, wear-resistant linings are optional.

What are the electrical requirements?

The system operates on three-phase power at 380 V ±10% (IEC 60038) and 50/60 Hz. Other voltages may be available on request. Ensure your site meets these requirements.

Data Basis

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

Preliminary Technical Classification
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