Advantages and application of frequency converter in driving system of pipe belt conveyor 3

Advantages and application of frequency converter in driving system of pipe belt conveyor (3)

If the drive of the belt conveyor is configured to be non-adjustable, in order to avoid the risk of belt jumping and torsion damage in the commissioning process, it is necessary to start and stop frequently by inching at the initial stage of equipment commissioning, which will greatly prolong the commissioning period and bring great uncontrollable to the project execution period. According to the statistical analysis of the project implementation, the commissioning cycle of the pipe belt conveyor with liquid coupling is 3-5 times longer than that of the pipe belt conveyor with frequency converter. When the non-adjustable pipe belt conveyor is put into production and operation, such as twisting and deviation, it will take longer to deal with the stubborn belt running. Moreover, after the heavy-load shutdown in the production process, the vibration of the driving system, the beating and tearing of the belt may be caused during the restart process, which will cause unpredictable damage to the equipment. The application of frequency converter is of great significance to improve the commissioning efficiency, safety and operation and maintenance efficiency of pipe belt conveyor equipment.

The acceleration of the belt conveyor can be adjusted during the start-stop process, which can realize the smooth start-stop of the S-shaped curve, improve the transmission and dynamic characteristics of tension waves, and reduce the mechanical jump impact. This can reduce the strength of the core components such as the belt, shaft, bearing, gear, etc., and reduce the one-time investment cost of the equipment. The research shows that the combined resistance force of the head drive pipe belt is more than 12 times larger than that of the head drive pipe belt and the tail drive pipe belt, so the long-distance pipe belt conveyor can further optimize the running resistance by adopting the head drive and tail drive layout design. Reduce the investment cost. 

Considering energy saving and investment economy, multi-drive at the head and tail is the inevitable direction of long-distance pipe belt line design. However, multi-drive dragging, such as unbalanced output power between drives, will also cause load impact, drive vibration, roller slippage, belt torsion, mechanical fatigue accumulation and so on. For long-distance pipe belt conveyor, the realization of multi-drive balance is an unavoidable technical problem, and it is also the key to the successful operation of the equipment.