Overview of Non-Metallic Minerals

What are Non-Metallic Minerals?
Non-metallic minerals refer to mineral resources that have economic value and can be developed and utilized directly based on the chemical properties, physical attributes, and processing performance of minerals and rocks.
The main varieties of non-metallic minerals include diamond, graphite, native sulfur, pyrite, quartz, corundum, and kyanite. The formation of non-metallic minerals is diverse, but the most important types are magmatic, metamorphic, sedimentary, and weathered. Additionally, submarine hydrothermal activity is also significant, with pyrite primarily belonging to this formation type.

Common Non-Metallic Minerals

Bentonite

Kaolin

Barite

Quaratz

Bauxite

Gypsum

Basalt

Graphite

Sillimanite

Classification and Applications of Non-Metallic Minerals

Due to the diversity of their formation, complexity of chemical composition, and overlapping uses, the classification system for non-metallic minerals exhibits multidimensional characteristics. Currently, they are primarily classified based on three main principles: geological origin, product value, and industrial applications.

  • CHEMICAL FUELS

    Rock salt, Glauber's salt, natural soda, alum stone, native sulfur, phosphate rock, barite, celestine, fluorite, etc.

  • PETROLEUM INDUSTRY

    Barite, ilmenite, bentonite, attapulgite, sepiolite, montmorillonite, quartz sand, kaolin.

  • BUILDING MATERIALS

    Asbestos, slate, granite, marble, quartzite, limestone, diatomaceous earth, sand and gravel, clay, etc.

  • GLASS

    Quartz sand and quartzite, feldspar, nepheline syenite, vein quartz, etc.

Deep Grinding Processing of Non-Metallic Minerals

With the global industrial upgrade, the application of non-metallic minerals has shifted from extensive raw material supply to refined material services. Deep processing through grinding has become the core link in unlocking their value potential. This process involves crushing, grinding, and classification of the raw ore, endowing the mineral powder with specific particle size distribution, purity levels, and functional characteristics to meet the stringent demands of high-end manufacturing, green building materials, and new energy sectors.

  • MTW Trapezium Mill Process Flow

  • LM Vertical Roller Mill Process Flow

  • XZM Ultrafine Mill Process Flow

Selection of Grinding Equipment

The functionality of non-metallic minerals highly depends on the particle size, distribution, and morphology of the powder. These parameters directly affect core indicators such as specific surface area, chemical reactivity, and filling performance.

As a global leader in grinding equipment supply, Shanghai Zenith leverages over 30 years of technological accumulation to address the deep processing needs of non-metallic minerals. We have launched several efficient, intelligent, and environmentally friendly grinding equipment and provide a comprehensive solution from process design to equipment selection based on our extensive application experience.

  • MTW Trapezium Mill
  • LM Vertical Roller Mill
  • LUM Ultrafine Vertical Mill
  • XZM Ultrafine Grinding Mill

MTW European Version Trapezium Grinding Mill

High output and low consumption

Smooth transmission

Thin Oil Lubrication

Applicable fields: Fine grinding of medium-hard materials such as coal gangue, petroleum coke, and barite, especially suitable for industries like environmental desulfurization, carbon, and metallurgy.

Technical Advantages:
The curved shovel blade design expands the grinding area, and the resistance-free air inlet spiral shell design reduces energy consumption, achieving energy-saving effects.
The high-efficiency cage classifier allows for flexible adjustment of fineness from 80 to 325 mesh, effectively avoiding the "coarse powder leakage" phenomenon, ensuring stable and reliable product quality.
The dilute oil lubrication system extends bearing life, ensures smooth rotation, and reduces maintenance costs.

LM Vertical Roller Mill

Function Integration

Cost-Effective Investment

Energy Saving and Environmental Protection

Applicable fields: Specifically designed for industries such as metallurgy, power, and chemical engineering, suitable for large-scale industrial powder production, including coal powder preparation, slag micro powder, and non-metallic mineral grinding (such as limestone, barite, and marble).

Technical Advantages:
Integrates five major functions: crushing, grinding, classification, drying, and conveying, with a compact footprint and high efficiency, energy-saving, and environmentally friendly.
Fully sealed negative pressure operation, low equipment vibration, meeting modern industrial production environmental protection requirements.
Effectively controls product particle size and purity, meeting high-quality production demands.

LUM Ultrafine Vertical Mill

Excellent Finished Products

Precise Fineness

Safe and Stable

Applicable fields: Specializing in the coatings, plastics, and rubber industries, suitable for the preparation of ultrafine powders such as calcite, heavy calcium, and talc.

Technical Advantages:
The uniquely designed grinding curve of the roller sleeves and liners, along with a special pre-compression device and material layer grinding principle, results in high grinding efficiency and superior product quality.
Utilizes ultrafine grinding and multi-head classification, with an intelligent control system and advanced classification technology, achieving high efficiency and energy savings.
The grinding rollers do not directly contact the grinding plate, made from high-quality materials, and the rollers can be flipped out for maintenance.
Fully sealed structure, with dust emissions far below national standards.

XZM Ultrafine Grinding Mill

Advanced Technology

Stable and Reliable

Green and Environmentally Friendly

Applicable fields: Production of ultrafine powders from non-metallic minerals such as calcite, talc, and barite, used in papermaking and chemical industries.

Technical Advantages:
At the same fineness and power, the output is 40% higher than that of air jet mills, with energy consumption reduced by 20%.
Product fineness is adjustable from 325 to 2500 mesh, and can achieve a d97 ≤ 5 μm standard in a single pass.
Equipped with an efficient pulse dust collector and silencer, operations are free from dust and noise pollution.

Classic Cases of Non-Metallic Minerals

Annual 120 Kilotons Bentonite Grinding Plant

Material: Bentonite
Daily Operation: 10h
Finished Product: 200-325mm
Equipment: MTW175 Grinding Mill

Annual 60 Kilotons Gypsum Powder Grinding Plant

Material: Gypsum
Capacity: 60,000t/y
Fineness: 100mesh
Equipment: 2 MTW138 European Trapezium Grinding Mills

5TPH Gypsum Powder Grinding Linet

Material: Gypsum
Capacity: 5TPH
Fineness: 400mesh
Equipment: XZM Ultrafine Grinding Mill

20TPH Quartz Powder Grinding Plant

Material: Quartz
Capacity: 20TPH
Fineness: 200mesh
Equipment: LM Vertical Roller Mill

ABOUT ZENITH

Shanghai Zenith Machinery Co., Ltd. is a hi-tech enterprise specializing in the research, development and production of industrial powder grinding equipment. We focus on the needs of customers in different fields, and our product processing range covers 1-3mm coarse powder, 20-400mesh fine powder, 400-1250mesh ultrafine powder and 1250-3250 mesh micro powder. Our equipment have got ISO international quality system certification, European Union CE certification and Customs Union CU-TR certification.

Non-metallic mineral grinding is an important cornerstone of industrial development. Shanghai Zenith focuses on technological innovation, dedicating itself to providing a one-stop solution for the non-metallic mineral grinding industry, covering everything from rough processing to ultrafine deep processing through efficient equipment development, breakthroughs in environmental technology, comprehensive industry chain coverage, and global services.

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