– Fixed mine wagon:
– A transportation tool used for moving coal, ore, waste rock, and materials during mining operations.
– Typically dragged by a locomotive or winch.
– Size is determined by the physical conditions of the mine, with factors such as low-coal seams, poor roof conditions, and curve radius influencing dimensions.
– Low-coal seams necessitate low-height cars, while poor roof conditions may limit wagon width.
– Length of the car may be restricted by the radius of the smallest curve.
– Large capacity in low-coal mines is achieved by increasing length and width or utilizing special designs with low car bottoms.