Abstract:

Mine hoist system on the saving, People think there is energy-efficient speed. The purpose of this article is to DC and variable frequency drive system energy calculation and analysis。Argumentation in hoist auxiliary device, deflector, under the same motor and The same acceleration and deceleration, power consumption per ton of coal and lifting height, lifting speed and enhance the relationship between the load and the following conclusions For a given lift height and capacity building to enhance the system, Whether using a large amount of lift Q, a smaller increase speed V; still use a larger increase speed V, a small amount of lift Q, its electricity consumption per ton of coal will not change. Power consumption per ton of coal and lift height only, but no with lifting speed and lifting loads are irrelevant.

Key words: Increase speed, DC or frequency, tons of coal power consumption, imbalance upgrade, economic operation