In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft. Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters ( thyristors ), although modern large hoists use alternating current ...

The performance of a mine largely depends on the perfor-mance of the shaft hoisting system. The mine shaft with its hoisting equipment can be a bottleneck for the mine’s production – a place where maximum transportation of people and material in compliance with the highest safety standards is required. Consequently, the demands placed

Zitrón designs and supplies complete mine shaft equipment such as guide rope systems, headframes, access doors, gates, counterweights, safety guides, arrestors, etc. Zitrón provides the integration of the mine hoist system with the mine ventilation system.

The mine shaft hoist system (mine winder) is wildly used in underground coal mine, metal mine and non-metal mine for lifting underground personnel, ores, materials, and equipment, with the features of safety and efficiency, no matter in inclined shaft, or in vertical shaft.

provides guidance on eliminating or minimising risks associated with winder control systems , and identifies the essential safety and functional requirements that must be included in the design of control systems for the safe operation of a PWS. As outlined in the table below, Part 5 applies to the control systems on all mine winders.

Jun 25, 2024 · The hoist, also known as the winder, is a robust machine that winds and unwinds steel cables to raise and lower the mine elevator (cage or skip). Hoists are typically powered by electric motors, although in historical mining operations, steam or hydraulic power was common.

Shaft sinking winders (refer to clause 2.1.3.) are a type of vertical shaft drum winder. Vertical shaft drum winders wind people and/or materials in vertical mine shafts, using one or two ropes coiling typically onto a single drum.

The document discusses the mechanical braking system of mine winders, focusing on the classification and different types of mechanical brakes used. 2. Mechanical braking systems dissipate the kinetic energy of the system through frictional forces and heat, and are used as a backup to electrical braking systems.

This review paper is the first of its kind information source provider for mine winder drives to be useful for researchers, designers and application engineers in the mining industry. Keywords: Mine hoist drives, induction motor, DC motor, inverter, cycloconverter, AFE.

Mine winders - is the most long-standing product manufactured by PJSC NKMZ. Possibility of huge drum winders fabrication at our plant is assured by availability of production facilities, providing