Introduction In underground mining operations, electrical safety is non-negotiable. Harsh environments—filled with flammable gases, dust, and moisture—demand robust protection against explosions and electrical faults. This is where Expolsion-Proof Intrinsically Safe Permanent Magnet Vacuum Feed Switch come into play. These advanced switching devices combine flameproof enclosures (Ex d) with intrin...

Introduction In the mining and bulk material handling industries, belt conveyors are the backbone of efficient material transport. One critical component that ensures smooth operation is the tensioning system, which maintains optimal belt tension to prevent slippage, reduce wear, and improve energy efficiency. Traditional tensioning methods—such as hydraulic, counterweight, and screw tensioning—ha...

Introduction In hazardous mining environments, electrical safety and reliability are critical. The Explosion-Proof and Intrinsically Safe Permanent Magnet Vacuum Feeder Switch is an advanced electrical protection device designed for underground coal mines, metal mines, and other explosive gas/dust environments. Combining flameproof enclosure, intrinsically safe circuits, and permanent magnet vacuu...

Introduction The GGD type AC low-voltage switchgear is a widely used power distribution and control device in industrial and commercial electrical systems. Designed for reliability, safety, and ease of maintenance, it is commonly applied in power distribution stations, manufacturing plants, and building electrical rooms. 1. Overview of GGD Switchgear 1.1 Definition GGD is a fixed-mounted, enclosed...

Introduction In modern mining operations, the efficient and stable performance of large-scale equipment such as belt conveyors, hoists, pumps, and fans is crucial. Traditional fixed-speed motor drives suffer from high starting currents, excessive energy consumption, and strong mechanical shocks. The advent of mining high-voltage explosion-proof frequency converters has revolutionized the industry ...

In the wave of industrial automation, Wantai Co., Ltd. uses innovation as its sail and quality as its rudder to launch a series of impressive PLC products, injecting strong impetus into the intelligent development of various industries. 01. Universal control products: precise control, unlimited possibilities Wantai's general control products are like an all-round commander, able to flexibly cope w...

Introduce The occurrence of rockburst will result in casualties, production shutdowns, and rectification, greatly affecting the safety of mining operations. In order to predict and prevent the hazards of rockburst, various rockburst monitoring systems (microseismic monitoring system, stress monitoring system, drilling cuttings monitoring system, hydraulic support monitoring system, etc.) have been...

1. Introduction Under the background of the rapid development of industrial production today, the demand for the transportation of various materials such as coal and ore is growing. As the core equipment for material transportation, the stable operation of the conveyor is crucial. The BPQJ-(400, 250)/1140S explosion-proof and intrinsically safe combined frequency conversion starter for conveyor te...

Product Introduction This series of products are mainly used in coal mines and other explosive gas environments containing methane and coal dust mixtures in AC 50Hz voltage 1140V or 660V or 380V three-phase neutral point ungrounded lines to control the start and stop of three-phase asynchronous motors locally or remotely, and can perform reversing when the motor is stopped. (Models with N can cont...