Method and device for automatically adjusting belt conveyor speed

Abstract

The invention discloses a method for automatically adjusting belt conveyor speed. The method comprises the steps of S1, collection, S2, material weight determination, and S3, belt conveyor speed adjustment. In S1, the real-time operation speed of the belt conveyor and the material information of the belt conveyor are collected by cameras located at two sides of the belt conveyor, wherein the material information comprises the material height information and material width information. In S2, the material size is calculated based on the material information, and the material weight information is obtained based on the material size and a preset material density. In S3, a target operation speed of the belt conveyor is calculated based on the material weight information, and the operation speed of the belt conveyor is calculated based on the target operation speed and the real-time operation speed. According to the method and device for automatically adjusting the belt conveyor speed, the goal of saving energy and reducing emission is achieved through the real-time adjustment of the operation speed of the belt conveyor and reduction of the drive power of the belt conveyor.

Description

technical field [0001] The invention relates to the field of mining equipment, in particular to a method and a device for automatically adjusting the speed of a belt conveyor. Background technique [0002] With the development of the coal industry, the high-power belt conveyor system is used as the main transportation method, and this system accounts for a very high proportion of the power consumption of the entire coal mine. In addition, during the design, the production capacity of the transportation system will be planned in advance, that is, the newly built or expanded system can meet the load required to increase the production capacity of the entire mine in the next few years, that is, the excess transportation capacity will be allocated to meet the increased demand for future production capacity. So as to obtain greater economic benefits. As a result, the following problems will arise: because the production capacity has not reached the maximum production capacity, t...

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Problems solved by technology

As a result, the following problems will arise: because the production capacity has not reached the maximum production capacity, the belt conveyor system of the entire mine will be in no-load or light-load operation for a long time, and the whole state will be a normal state, which will undoubtedly cause a waste of electric energy and equipment loss, so it is necessary to carry out reasonable upgrading and transformation of the existing transportation system

However, the soft start only solves the problem of starting. When the system runs smoothly, it still runs at the maximum power, and does not achieve effective energy saving.

[0005] Due to the inhomogeneity of the amount of coal on the belt conveyor system, it is difficult to calculate the load on the equipment. How to realize the control efficiently is a problem that needs to be solved at present

Conventionally used scales calculate the amount of coal at a fixed location, but cannot calculate the amount of coal transported on the transportation system, and the real-time performance is poor. In the prior art, in order to obtain the weight of the incoming material on the belt conveyor, it is usually necessary to increase the weight on the 1# belt conveyor. An electronic belt scale, and then a comprehensive protection controller is installed on the 2# tape machine, and the instantaneous quantity M1S of the incoming material of the 1# tape machine collected is transmitted to the 2# tape machine comprehensive protection controller in real time through the electronic belt scale, and the 2# tape machine The comprehensive protection controller of the machine reads the M1S in real time, and then obtains the running speed of the tape machine through calculation, and adjusts the running speed of the tape machine. Although this method can reduce the energy consumption of the tape machine transportation system, this method in the prior art It only calculates a single instantaneous coal volume, but cannot calculate the coal volume on the transportation system, and the real-time performance is poor

At the same time, the existing technical solution requires coordination and cooperation through the simultaneous operation of two tape machines, and the energy consumption required by the two tape machines is also very large, and the effect of energy saving and emission reduction is limited.

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