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Energy saving management method for motor in conveyor belt

A management method and conveyor belt technology, applied in the management field, can solve problems such as power loss and waste, and achieve the effects of energy saving, strong practicability and remarkable effect.

Inactive Publication Date: 2013-01-16
WUHAN IRON & STEEL (GROUP) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the motor runs in a low-efficiency state (no-load or light-load) for a long time, it will cause a great waste of power loss

Method used

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  • Energy saving management method for motor in conveyor belt
  • Energy saving management method for motor in conveyor belt
  • Energy saving management method for motor in conveyor belt

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Embodiment Construction

[0029] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation and working principle of the energy-saving management method for the motor in the conveyor belt proposed according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. illustrate.

[0030] Depend on figure 1 It can be seen that the energy-saving management method of the motor in the conveyor belt provided by the present invention includes:

[0031] Calculate the demand power P of the load 负 ; Specifically, through the formula The required power of the load is calculated; among them, m is the mass of the load, g is the gravity coefficient, t is the time for the load to do work, and h is the height of the vertical rise of the load.

[0032] Then the output power P of the motor at no load is obtained through the smart meter 0 .

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Abstract

The invention relates to the technical field of a management method, and discloses an energy saving management method for a motor in a conveyor belt. The method comprises the steps as follows: calculating to obtain a demanded power P (load) of a load; calculating to obtain a total output power P (total) of a motor; comparing the P (load) with the P (total), switching the working state of the motor according to a comparison result; if the P (load) is less than the P (total), reducing the number of the working motors to obtain a total output power P' (total) of the rest working motors; comparing the P (load) with the P' (total); recovering to a state of the motor before switching the working state if the rest working motors fail to meet the working demand when the P (load) is greater than the P' (total). According to the management method, the number of the working motors is properly reduced on a basis of meeting a conveying demand according to the comparison result between the demanded power of the load and the total output power of the motor, thereby achieving the purposes of reducing the consumption of the motor and saving the energy.

Description

technical field [0001] The invention relates to the technical field of management methods, and is mainly applicable to the energy-saving management method of motors in conveyor belts. Background technique [0002] The port conveyor belt system is an important part of the bulk cargo terminal of the port. In our country, the operating efficiency of the general conveyor belt system is low, the main reason is that the load characteristics do not match the torque characteristics of the motor. Compared with foreign countries, the overall operating conditions of electric motors in my country are quite different. The unit efficiency is about 75%, which is about 10% lower than that of foreign countries; the system operating efficiency is 30-40%, which is 20-30% lower than the international advanced level. When the load carried by the motor is small, the operating efficiency of the motor is low; when the load carried by the motor is large, the motor may run with higher efficiency. T...

Claims

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Application Information

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IPC IPC(8): H02P5/00
Inventor 方建华胡雯马云飞唐伟凯梁国林
Owner WUHAN IRON & STEEL (GROUP) CORP
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