課題
鉱山システムにおいて、インバータは「選択装備」から「必須装備」へと進化しました。その適用は、電源周波数直結駆動の「高消費エネルギー・高摩耗・低効率」問題を解決するだけでなく、鉱山のインテリジェント化の中核支柱にもなっています。// 今後、防爆技術、IoT技術、省エネアルゴリズムの進歩に伴い、インバータは鉱山の「無人化・インテリジェント管理」システムに深く統合され、「安全・効率・グリーン」な生産を実現するための重要な技術支援となります。
ソリューション
The main underground ventilator in coal mines is a core auxiliary equipment for ensuring underground air quality and diluting gas concentration, which requires 24-hour continuous operation. Traditional power-frequency drives have pain points such as "high energy consumption for air volume adjustment (air door throttling loss reaches 30%-50%), large starting impact (inrush current is 5-7 times the rated value), and slow gas linkage response". For this scenario, inverter application solution takes "safety and explosion prevention as the premise, on-demand air supply for energy conservation as the core, and intelligent linkage to ensure safety" as its goals, so as to achieve efficient and safe operation of the ventilator. The basic plan is as follows:
inverter selection: Focus on explosion prevention and stability, and select flameproof vector control inverters.
Control logic: Dynamic speed regulation with gas linkage, which is deeply linked with the underground gas monitoring system and PLC control cabinet to build a "gas concentration - air volume" closed-loop control.
Installation and protection: Adapt to the harsh underground environment to avoid causing safety risks.