Underground mine drainage water treatment system - Tianjin MeiTeng Technology Co., Ltd.

Dewatering

Underground mine drainage water treatment system

Targeting the root cause of sediment removal in underground sumps, the system adopts China’s first patented underground mine drainage water treatment process, featuring the self-developed QCD scraper-type sump cleaner as the core equipment. By using a multi-stage treatment approach to pre-treat coarse particles above 325 mesh before they enter the sump, the system indirectly reduces sump workload and significantly decreases the frequency and duration of manual sump dredging. Ultimately, it enables sump cleaning only once every 5 to 10 years, fundamentally resolving the sump dredging problem.

How It Works

The system adopts a deep-feed design, allowing coal slurry to flow by gravity from the feed inlet into the settling tank. The elongated tank dissipates the slurry’s horizontal kinetic energy, promoting rapid natural sedimentation. Inclined plate settling and stepped overflow technologies further enhance the settling process.

Coarse particles gradually settle at the bottom of the tank. Once the sediment reaches a predetermined thickness, it is continuously discharged by a bottom scraper conveyor using a progressive discharge mechanism and transferred onto the raw coal conveyor. Fine particles overflow through the rear overflow weir for subsequent treatment.

Applications

Applicable to underground coal mine working areas, including coal mining roadways, transportation roadways, sedimentation tanks in front of water storage chambers, main shaft conveyor belt head, machine tail, transfer points, side sedimentation tanks, above-belt areas, and main shaft hoisting openings.

Advantages

Intelligent Automation

–Replaces manual cleaning with intelligent automated equipment, significantly reducing labor intensity

– System runs automatically and periodically, operating once every 1‑2 hours, with each cycle lasting only 5‑10 minutes
Safety Enhancement

-Minimizes manual intervention, reducing exposure to hazardous underground tasks

-Continuous dredging maintains sump capacity and enhances flood resilience

-Fundamentally improves underground safety
Energy Saving & Efficient Discharge

-Water‑free process reduces water consumption

-Improves operational efficiency and adaptability in underground environments
Cost Savings

-Compared with conventional methods, reduces dredging costs by over USD 738,000 on average
Advanced Technology

-China’s first innovative underground coal slurry treatment process, featuring a multi‑stage pre‑sump dewatering system

-Enables indirect sump cleaning, extending the dredging cycle to 5 years or more

-Achieves pre‑treatment before material enters storage silos , eliminating the need for manual in‑silo cleaning
Intellectual Property & Technical Recognition

– Independently developed with proprietary intellectual property rights, including 3 invention patents and 28 utility model patents.

– MeiTeng is currently the only company in China to obtain the Mining Safety Certificate (MA Certificate) for this product, with 5 valid MA certificates issued.

– The product has passed the technical appraisal by the China National Coal Association, achieving an internationally advanced level.

See Other Products

Ultra-high Pressure Elastic Frame Filter Press

MeiTeng's Ultra-high Pressure Elastic Frame Filter Press features an innovative frame-free design that replaces conventional filter plates with U-shaped elastomer-sealed filter bags, creating fully enclosed filtration chambers. By transferring compression force through the filter cake, the system achieves a higher compression ratio, significantly enhancing dewatering efficiency and increasing slurry processing capacity. Equipped with an active automatic cake discharge system, the filter press achieves a 100% discharge success rate, enabling reliable, fully unattended operation with minimal maintenance requirements.

Hyperbaric Disc Filter

Our Hyperbaric Disc Filter is an intelligent pressure filtration system engineered for continuous, high-capacity solid-liquid separation across mining and industrial processes.