Research on Energy Saving of Frequency Converter in Coal Mine Belt Conveyor

Belt conveyor transport is not only convenient, but also to protect the safety of coal transportation. However, in the practical application process, due to technical problems, coal mine belt conveyor machine always has a characteristic of high energy consumption, deviating from the concept of energy saving and environmental protection. After the application of the frequency converter in the coal mine belt conveyor, both in its life span or energy saving has it achieved good effects.

1.1 adjust the speed and protect the belt

After the coal mine belt conveyor equipment applies the frequency converter, the starting of motor gets soft, the coal belt conveyor can be slow to the fast operation to avoid the damage to the belt in case of a sudden start of the coal belt conveyor. Besides, the frequency converter can also adjust the parking speed, parking from fast to slow to protect the belt conveyor.

1.2 running stable and lower the intensity

The frequency converter has changed the original start time of the coal belt conveyor so that the start of the coal belt conveyor can experience a gradual process to avoid a sudden start of the coal belt conveyor which brings the negative impact.

1.3 power balance

The common type of the coal belt conveyor is one-pulley type and two-pulley type. These two kinds of coal belt conveyor are different in the drive form, but also different in the drive selection. After the application of the frequency converter in the coal belt conveyor, no matter what the drive form is of the belt conveyor, it will adjust the power well. The frequency converter can make the motor application more reasonable to reduce the power output.

1.4 protect the equipment and reduce the expenses

After the coal belt conveyor uses the frequency converter, it will reduce the harmful effects when starting and stopping the belt conveyor machine to achieve the purpose of extending the service life of the equipment. At the same time, the converter can guarantee the operating state of the coal belt conveyor, reducing the work intensity of maintainer and maintenance costs.

1.5 save energy

After using the frequency converter, the running speed of the coal belt conveyor is related to its loading capacity. The frequency converter will adjust the running speed according to how much it loads, and keep the speed of the conveyor the slowest speed when there is no loading task to minimize the power consumption.

About the coal mining, we not only need to protect the quality of mining, but also to work hard in energy conservation efforts. we achieve the energy conservation purpose by improving the work methods, innovative application technology and other methods. Applying the frequency converter to the belt conveyor very significant to improve the working efficiency and reduce the energy waste of the conveyor.

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