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A driving control method for a belt conveyor

A technology for belt conveyors and conveyor belts, applied in the field of variable frequency drive of belt conveyors, can solve problems such as energy waste, and achieve the effects of reducing start-up time, shortening start-up time, and shortening the start-up process.

Active Publication Date: 2021-08-24
TIDFORE HEAVY IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the operation process of the conveyor, it is not allowed to load materials during the start-up process, which will lead to waste of energy during the start-up process

Method used

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Embodiment Construction

[0026] A driving control method for a belt conveyor provided by the present invention will be further described in detail and completely below in conjunction with an embodiment. The embodiments described below are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0027] A driving control method for a belt conveyor, which defines a standard state range: the belt conveyor starts within a standard start time t, and the power required for the normal operation of the conveyor is P0, then P 标2 标1 , t 0 1 , where t 0 , t 1 is a fixed value, respectively the lower limit and upper limit of t; P 标2 标1 , P 标1 ,P 标2 is a fixed value, respectively the upper limit and lower limit of P0;

[0028] The belt conveyor is connected to three motors, which jointly drive the conveyor, and the three motors are connected to the PLC. Further, each of the three motors is equipped with a power detection device, and the power detecti...

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Abstract

The invention provides a drive control method for a belt conveyor, the belt conveyor starts within the standard start time t, and the power required for normal operation is P0, P 标2 <P0<P 标1 , the three motors connected to the belt conveyor are connected to the PLC, and the control method includes: Step a: P n1 ,P n2 and P n3 Input PLC; P n1 ,P n2 and P n3 are respectively the active powers of the three motors started for the nth time; step b: calculate P=P n1 +P n2 +P n3 ; Step c: if P>P 标1 , then make t’>t 0 ; if P <pMark 2, then make t'<t1; step d: Start the three motors for the n+1th time, so that they can complete the start within time t'. The PLC of the present invention calls the real-time power of the last conveyor operation, and uses it as the input of the derivation relationship between real-time power and start-up time inside, and deduces the optimized start-up time to reduce the energy loss in the start-up process.< / p

Description

technical field [0001] The invention relates to the technical field of frequency conversion driving of belt conveyors, in particular to a driving control method of belt conveyors. Background technique [0002] When the conveyor is running, the start time of the conveyor in a certain process state is usually set to a fixed value, that is, the start time of the conveyor in this process state is fixed, and the time from the stop of the conveyor belt to the set transmission rate is a fixed value. However, due to the different climatic environments in different seasons, the power loss will be different, resulting in different start-up times under different conditions. The start-up time under the standard state (non-bad state) can be taken as the standard start-up time range. In the worse working condition, the start-up time of the conveyor is greater than the value within the standard start-up time range, that is, the start-up acceleration of the conveyor in the worse working co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G23/22
CPCB65G23/22Y02P70/10
Inventor 马杰李超
Owner TIDFORE HEAVY IND
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