The mining industry is a global sector focused on extracting valuable geological materials from the Earth, including metals (e.g., gold, copper), industrial minerals (e.g., limestone, phosphate), and energy minerals (e.g., coal, uranium). It excludes petroleum, which falls under the oil and gas sector. Mining provides essential raw materials for construction, manufacturing, technology, and energy production, forming the backbone of modern infrastructure and innovation.
1. Surface Mining: Includes open-pit and strip mining, used for near-surface deposits.
2. Underground Mining: Accesses deeper resources via tunnels, common for coal and metals.
3. Placer Mining: Extracts minerals from sediment, often used for gold.
4. In-Situ Mining: Dissolves minerals in place, typically for uranium.
1. Knife Gate Valves
Function: Designed to handle viscous fluids, slurries, and solids-laden media. Their sharp-edged gate cuts through thick or abrasive materials.
Features: Compact design for high-pressure and high-wear environments.
Applications: Slurry pipelines, wastewater systems, and heavy ore processing.
2. Slurry Valves
Function: Specialized for abrasive slurries, offering anti-scaling and anti-blocking properties.
Features: Spherical sealing surfaces for reliable line-contact sealing. Separable valve seat and body for easy maintenance.
Applications: Alumina processing, metallurgy, and mining slurry systems.
3. Ball Valves (Metal-Sealed)
Function: Tight shut-off in high-pressure or corrosive environments.
Features: Fire-safe designs (e.g., API 607/6FA certifications). Full-bore options for minimal flow restriction.
Applications: Gas lines, chemical dosing, and high-pressure ore transport.
4. Diaphragm Valves
Function: Isolate fluids from valve components to prevent contamination.
Features: PTFE or rubber diaphragms for chemical resistance. Maintenance-free operation in corrosive or hygienic processes.
Applications: Acid handling, polymer transport, and tailings management.
5. Pinch Valves
Function: Ideal for powders, granules, or highly abrasive media.
Features: Rubber sleeves that pinch to control flow, isolating mechanical parts from the fluid. Used in pneumatic conveying and chemical dosing systems.
6. Check Valves
Function: Prevent backflow in pipelines.
Types: Swing, lift, or dual-plate designs for slurry or high-pressure systems.
Applications: Pump discharge lines and reactor outlets.
