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Nowadays, mining exploitation, urban infrastructure construction and urban renewal projects are booming nationwide, generating a wide range of solid waste including mine tailings, construction waste, waste concrete blocks, mine waste rock and industrial residues. Random stockpiling and open landfill will not only damage mountain ecology and occupy land resources, but also fail to meet environmental assessment requirements across the country. Carrying out standardized and efficient solid waste disposal has become an essential demand for mining enterprises, construction engineering contractors and solid waste treatment companies. To meet the differentiated processing requirements of various waste materials, Shanghai Dongmeng, a professional solid waste disposal equipment supplier, relies on years of R&D experience in solid waste recycling, equips a full range of solid waste processing equipment, builds an integrated processing chain covering mine tailings, construction waste and concrete blocks, and customizes solid waste disposal solutions suitable for working conditions nationwide. Supported by mature solid waste disposal technologies, we realize the reduction, harmless treatment and high-value comprehensive utilization of all types of solid waste.

I. Characteristics and Disposal Difficulties of Main Solid Waste Types

1. Mine Tailings: Fine tailings, slag and tail sand left after mineral separation of iron ore, copper ore, aggregate mines and non-metallic mines feature uneven hardness, and some contain trace valuable minerals. Open stockpiling easily causes soil and water pollution with extremely low comprehensive utilization rate, while centralized screening, grinding and forming face many technical barriers.

2. Construction Waste: Demolition of villages in cities and road reconstruction produce red bricks, mixed construction residues mixed with steel bars, plastic and wood scraps. Such waste comes from scattered construction sites with limited operation space, and urban construction is subject to strict environmental supervision.

3. Waste Concrete Blocks: Hard concrete materials generated from old road breaking and building demolition have high hardness and integrity, requiring multi-stage crushing and shaping. Processed products can be used as road base aggregate and brick-making raw materials, which places high requirements on the wear resistance of crushing equipment.

II. General Disposal Logic for Various Solid Waste

The whole closed-loop operation covers waste classification and sorting, crushing and screening, impurity separation and purification, deep processing of finished products, goaf backfilling and building material recycling, abandoning the extensive single landfill model. Based on standardized solid waste disposal technologies, we distinguish soft solid waste and hard solid waste, match corresponding processes and equipment, customize exclusive solid waste disposal solutions, and balance three core demands: environmental compliance, controllable cost and efficiency improvement with extra revenue.

Shanghai Dongmeng Exclusive Solid Waste Disposal Solutions

1. On-site Backfilling Disposal Solution for Mine Tailings

Aiming at stockpiled tailings in open-pit mines and underground mining areas, we match Shanghai Dongmeng tyre mobile cone crushing stations and mobile screening equipment to finely crush and screen tail sand on-site, process qualified filling aggregate and directly backfill mine goafs. This reduces the storage pressure of tailings ponds without long-distance waste transportation, suitable for mobile operation in remote mountain mines.

2. Resource Recycling Solution for Mixed Solid Waste

Applicable to mixed raw materials of mine tailings, construction waste and concrete blocks, the combined operation of mobile jaw crusher and mobile impact crusher is adopted. Large concrete and waste ore are coarsely crushed first, followed by medium-fine crushing, shaping and impurity separation to separate steel bars and sundries. Multi-specification recycled sand and aggregate are classified and produced, which can be used for permeable brick manufacturing and road base stabilizing layer mixing.

3. Large-scale Centralized Deep Processing Solution for Solid Waste

For regional solid waste industrial parks and large mineral separation plants, we customize fixed solid waste crushing and screening production lines integrated with dust removal, magnetic separation and air separation modules to purify valuable minerals in tailings and finely process high-grade building aggregate. It fits large-scale and long-term solid waste processing projects, supports inspection and acceptance under CNAS certification, and finished products are qualified for bidding projects.

III. Matching Selection of Core Solid Waste Processing Equipment from Shanghai Dongmeng

IV. Four Core Advantages of Shanghai Dongmeng Solid Waste Comprehensive Utilization Solutions

1. Multi-purpose equipment, compatible with all types of solid waste processing

A single set of solid waste equipment can be switched to process mine tailings, construction waste, waste concrete blocks and mine waste rock without repeated equipment procurement. The crushing cavity type and discharge parameters can be freely adjusted to adapt to solid waste materials of different hardness from all regions nationwide, featuring strong universal applicability of solutions.

2. Mobile operation to cut solid waste disposal costs

All tyre-mounted solid waste processing equipment can be transferred freely on highways and switched between mines and urban construction sites. No fixed foundation pouring is required, solid waste can be processed on-site to eliminate high costs of waste outward transportation, landfill and tailings pond management, greatly reducing overall project disposal costs.

3. Eco-friendly processes complying with national environmental inspection standards

The equipment is standardly equipped with pulse dust removal, sealed noise reduction and closed conveying structures. Dry crushing generates zero sewage discharge, and dust suppression & noise reduction effects meet provincial and municipal environmental protection standards. The whole processing of tailings and construction waste produces no pollution, easily passing mine environmental impact assessment and urban construction environmental inspections.

4. Original equipment manufacturer providing one-stop full-process landing service

Shanghai Dongmeng owns a CNAS-certified quality inspection laboratory, all solid waste processing equipment undergoes full-item testing before delivery with true and compliant parameters. We provide free on-site survey, customized solid waste disposal solutions, equipment installation, operation training and full coverage after-sales maintenance services for mining, infrastructure and solid waste projects nationwide.

V. Full-range Applicable Scenarios of the Solutions

Resource utilization of tailings from metallic and non-metallic mines, goaf backfilling, construction waste treatment from urban demolition, recycling of waste concrete from road reconstruction, industrial solid waste disposal in industrial parks, centralized resource processing of solid waste in counties, recycling of tailings from aggregate plants and other national solid waste treatment projects.

VI. Conclusion

With the comprehensive promotion of national mine ecological governance and zero-waste city construction, the extensive solid waste stockpiling model has been fully restricted. Professional solid waste disposal technologies and customized solid waste disposal solutions have become rigid industry demands. Rooted in solid waste recycling, Shanghai Dongmeng provides a full range of solid waste processing equipment and rich experience in landed projects, building a closed-loop processing system covering mine tailings, construction waste and concrete blocks. We assist mining enterprises and engineering contractors nationwide to dispose solid waste in compliance with regulations, turn waste into resources and realize green quality improvement and efficiency growth.