Innovative Application Case Of High-Strength Crimped Wire Mesh In Iron Ore Dry Screening Systems

Technical Solution Innovation

Special Alloy Formula: Utilizes 65Mn spring steel with special heat treatment, achieving a surface hardness of HRC55-60 and 3 times improved wear resistance.

Three-Dimensional Weaving Process: Innovative 5-layer composite structure:

Load-bearing layer: 8mm diameter main warp threads, tensile strength ≥1800MPa

Wear-resistant layer: 4mm weft threads, surface overlaid with tungsten carbide particles

Elastic layer: 2mm spring steel wire mesh sandwiched in the middle

Anti-clogging layer: 0.5mm stainless steel fine wires interwoven in the weave

Noise reduction layer: High-polymer damping material bonded to the back

Modular Design: 1.5m×3m standard modules equipped with a quick-locking device, reducing replacement time from 1... Reduced from 2 hours to 90 minutes

Economic Benefit Analysis

Direct Benefits:

Water Saving Benefits: Annual water saving of 6.4 million m³, valued at 11.52 million yuan

Increased Production Benefits: Improved fine powder recovery rate increases annual output by 192,000 tons, valued at 57.6 million yuan

Energy Saving Benefits: Annual electricity saving of 11.2 million kWh, saving 6.72 million yuan in electricity costs

Reduced Consumption Benefits: Annual reduction in screen replacement costs of 2.8 million yuan, and reduction in labor costs of 800,000 yuan

Indirect Benefits:

Continuous production is possible in winter, increasing effective production time by 45 days annually

Reduced tailings discharge, extending the service life of tailings ponds by 3.2 years

Improved working environment, lower equipment failure rate 60% Reduction

Environmental and Social Benefits

Zero Wastewater Discharge: Completely solves the problem of wastewater pollution in mineral processing.

Dust Suppression Innovation: Equipped with a micro-mist dry dust suppression system, dust concentration ≤10mg/m³.

Noise Control: Noise levels in the work area meet standards, improving the working environment for employees.

Resource Utilization: The comprehensive ore recovery rate increases from 81% to 94%.

Technology Promotion and Application

Based on the successful experience of this project, a series of products have been developed:

Coal Industry: Development of anti-static crimped wire mesh for screening in high-gas mines.

Non-ferrous Metals: Acid and alkali resistant crimped wire mesh for pretreatment in hydrometallurgical processes of copper and gold mines.

Building Materials: High-temperature crimped wire mesh for cement clinker. Material Cooling and Screening

Recycled Resources: Wear-resistant Crimped Wire Mesh for Construction Waste Crushing and Screening

Innovation Value Summary

This case successfully achieved four breakthroughs:

Material Innovation: Development of a composite material combining high wear resistance and moderate elasticity

Structural Innovation: Multi-layer composite design solves the problems of short lifespan and easy clogging of traditional screens

Process Innovation: Modular quick-change system significantly improves operational efficiency

Management Innovation: Intelligent monitoring enables predictive maintenance, changing the traditional passive maintenance model

This project not only solved the screening problem of a specific mine, but more importantly, it provided a brand-new technical route for mining in arid and water-scarce regions and high-altitude cold regions worldwide. As of 2023, this technology has been promoted and applied in 32 large mines at home and abroad, generating a cumulative economic benefit of over 1.8 billion yuan and reducing water consumption by 210 million cubic meters, becoming a model case for resource-saving mine construction.