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SIDE DISCHARGE LOADER MACHINE (SDL) IN UNDERGROUND MINES

SIDE DISCHARGE LOADER MACHINE

It is a popular coal loading machine of u/g mines. Which is mounted on the crawler track and is designed for loading the broken rocks on to a conveyor, in tub or to unload coal to the right or left of the machine.

Being crawler mounted the SDL can work in gradient up to 1 in 4.

It is totally flameproof machine, which make them suitable for operation in gassy mines.

 Side Discharge Loader Machine

A SDL has a bucket at front, which load the coal /ore from the face and transport or dump onto the chain conveyor, belt conveyor  which is installed near the faces or in tub and mine cars.
All the movements of bucket are done hydraulically for which hydraulic pack is mounted on machine itself.
The bucket capacity of SDL is 1𝒎^𝟑.
The Motor capacity is 65 HP/ 550 V. the motor shall be DGMS approved and ISI marked.
The SDL can work in distance upto 10m. Due to its crawler mounted it is not use for long distances.
The SDL is used where the gallery width is more than 3m.

Safety Features of SDL Machine.

Pilot circuit/switch is provided with the machine keeping the gate end box at far end.
Cut of switch is provided with machine this feature prevent the machine to overheating and over temperature.
The machine has provided suitable lights both at from and rear ends to ensure good visibility.
The machine has provision for lock and key to prevent unauthorized operation.
Suitable operator’s canopy is provided which protect the operator from, if any fall of roof or any stone, and due to this feature the SDL machine can be work in watery mines and in weak roof also.
It has audio visual alarm which alert the workers when the machine is on.
Foot switch, if for some reason the operator’s leg is removed from the switch, the machine automatically turns off.

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