Mining and petrochemical automation from Danli: smart low voltage distribution, motor control centres, protection and control systems for energy-intensive plants.
Process industries — including mining, petrochemicals, metallurgy, and others — are among the most energy- and resource-intensive sectors. Relying on continuous or semi-continuous production to transform raw materials into high-value-added finished products, these industries demand stable, large-scale operations. The global process industry market is expected to reach $2 trillion by 2027, with a CAGR of 5–6%, driven primarily by sectors such as petrochemicals and new energy equipment. As a result, the need for advanced power solutions has never been more urgent. For companies in these industries, high-voltage electrical systems must do more than just deliver power — they must ensure high reliability, operational safety, environmental resilience, energy efficiency, and intelligent monitoring to support continuous production. DANLI provides tailored electrical solutions that help industrial customers reduce downtime, optimize energy use, and enhance long-term performance.
Mines, concentrators, refineries and chemical plants run large motors, pumps and compressors continuously, often far from the grid and in dusty, corrosive or hazardous atmospheres. Their electrical systems must keep production running, protect people and equipment, and help control one of the biggest operating costs: energy.
Low-voltage products offer higher safety and reliability, ensuring safe and dependable equipment operation to prevent accidents caused by equipment failure.
Respond to increasingly stringent environmental policies, achieve carbon neutrality, and reduce greenhouse gas emissions.
Facilitate real-time monitoring and optimization of production processes through smart power distribution systems, intelligent communication, and digitalization.
| Sector | Typical loads | What we supply |
|---|---|---|
| Open-pit and underground mines | Conveyors, dewatering pumps, ventilation fans, hoists | LV distribution, MCCs, VFD cabinets, PLC control panels |
| Mineral processing | Crushers, mills, flotation cells, slurry pumps, thickeners | MCCs, soft starters and VFDs, process PLC/DCS cabinets |
| Refineries and chemical plants | Process pumps, compressors, agitators, heaters | Switchboards, MCCs, control and marshalling cabinets |
| Utilities on site | Water treatment, air compressors, cooling systems | Distribution boards, motor control, PLC/SCADA |
Motor control centres group the starters, drives and protection for dozens or hundreds of motors in one coordinated line-up. We build fixed and withdrawable MCCs with direct-on-line, star-delta, soft-start and VFD feeders, and intelligent motor protection relays that report current, thermal state and trip history to the control system. Withdrawable units allow a faulty feeder to be replaced in minutes, which matters when a single conveyor or pump can stop a whole process.
Choosing the right starting method matters on weak mine supplies. Direct-on-line starting is simple but draws six to eight times full-load current; soft starters reduce the starting current and mechanical shock; VFDs give the smoothest start and also allow speed control, which is valuable for conveyors, slurry pumps and fans. We size each feeder for the motor, cable length and supply strength, and coordinate protection so that a jammed conveyor trips only its own feeder.
Large induction motors and drives draw reactive power and create harmonics. Without correction this increases cable and transformer losses, reduces available capacity and can lead to utility penalties. Our capacitor banks, detuned filters and static var generators correct power factor and reduce harmonic distortion, freeing capacity on existing transformers and lowering energy costs.
Enclosure, cooling and component choices are confirmed against the site’s ambient temperature, altitude and pollution level at the design stage, so equipment performs to its ratings throughout its life.
We design protection systems so that faults are cleared by the nearest breaker and the rest of the plant keeps running. Internal-arc-tested switchgear, interlocks and clear isolation points protect maintenance staff. For critical loads such as dewatering pumps and ventilation fans, duty/standby arrangements and redundant control power keep operations safe even when equipment fails.
Emergency stop circuits, pull-wire switches on conveyors and gas detection signals from process areas are wired into the control system with clear priority over normal operation. Lock-out points on every motor feeder and well-labelled isolators make it easier for maintenance crews to follow safe work procedures, which is essential on large sites with many contractors.
Smart meters and monitoring software track consumption by area, process and motor. This shows where energy is wasted, supports energy-saving projects such as adding VFDs to fans and pumps, and provides the data needed for energy and carbon reporting.
Dashboards can compare energy per tonne processed between shifts or lines, highlight motors that run unloaded, and flag poor power factor before it leads to penalties. Combined with VFDs and power-quality equipment, monitoring is one of the fastest ways for energy-intensive plants to reduce operating costs and meet sustainability targets.
Related products: low-voltage switchgear, VFD cabinets, PLC/DCS cabinets. See also our oil and gas and metallurgy solutions.
A concentrator brings together most of the equipment described on this page. A typical electrical and control package includes:
Engineering all of these together means protection settings, communication protocols, drawings and test procedures are consistent from the main switchboard to the last motor.
Many mines and refineries run on switchgear and MCCs that are decades old, with obsolete parts and limited monitoring. Replacing everything at once is rarely possible, so we help plan staged upgrades: new MCC sections installed alongside old ones, drives added to existing motors, protection relays replaced, and monitoring connected to central systems. Factory testing and pre-wired sections keep each changeover short.
Every project includes approved drawings, bills of materials with named component brands, routine test and FAT reports, protection settings and operation and maintenance manuals. Our quality and product certifications are listed on our qualifications page, and we can follow client inspection and test plans and third-party witness tests where required.
Typical mine electrical systems include substations and switchgear, low voltage distribution, motor control centres, VFDs for conveyors, pumps and fans, PLC control systems and power-factor correction.
A motor control centre groups the starters, drives and protection for many motors in one assembly, making operation, monitoring and maintenance easier and safer.
Correcting power factor reduces losses, frees transformer and cable capacity and can avoid utility penalties, especially in plants with many large motors.
Yes. Switchgear, MCCs and control cabinets can be installed and tested in a prefabricated electrical room that is shipped to site ready for connection.
From a single control cabinet to full plant-wide automation.
Custom power distribution & automation control systems — high-voltage to intelligent PLC/DCS.
Zhejiang Danli Intelligent Control Technology Co., Ltd.
Est. 2013 · Hangzhou, China · National High-Tech Enterprise
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