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Electronic belt weigher weight accumulation method based on DCS/PLC

An electronic belt scale and weight technology, which is applied in the direction of continuous material flow weighing equipment, weighing, and measuring devices, can solve the problems of large calculation errors in the weighing results of electronic belt scales, achieve accurate total weight, and solve calculation errors Larger, more accurate results

Inactive Publication Date: 2021-06-18
PANGANG GRP PANZHIHUA STEEL & VANADIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a DCS / PLC-based electronic belt scale weight accumulation method to solve the problem of large calculation errors in the weighing results of the electronic belt scale

Method used

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  • Electronic belt weigher weight accumulation method based on DCS/PLC

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Experimental program
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Effect test

Embodiment

[0042] An embodiment of the electronic belt scale weight accumulation method based on DCS / PLC of the present invention comprises the following steps:

[0043] Step 1: DCS / PLC receives the operation signal of the electronic belt scale, and the operation signal is a continuous high level, which is fitted with a continuous high level to form a pulse signal. Reset to 0, DCS / PLC controls the operation of the electronic belt scale;

[0044] The second step: DCS / PLC scans the electronic belt scale in a cycle of 50ms to obtain the instantaneous value of weight in each cycle;

[0045] The third step: DCS / PLC records the instantaneous value of weight in each cycle, and uses the formula: weight=instantaneous value × cycle to calculate the weight in one cycle, and complete the weight calculation in each scanning cycle;

[0046] Step 4: Every time the electronic belt scale runs for a cycle, the DCS / PLC will accumulate the weight to obtain the current total weight until the electronic belt...

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Abstract

The invention relates to the field of electronic belt weighers, and in particular relates to an electronic belt weigher weight accumulation method based on DCS / PLC. The method comprises the steps of periodically acquiring analog signals of an electronic belt weigher, calculating the weight in the same period, and accumulating to obtain the weight of this time. The problem that the calculation error of the weighing result of the electronic belt weigher is large is solved, furthermore, the set value is corrected by calculating the correction value, the total weight obtained during multiple times of weighing is more accurate, and the method is suitable for the electronic belt weigher based on DCS / PLC.

Description

technical field [0001] The invention relates to the field of electronic belt scales, in particular to a method for accumulating the weight of electronic belt scales based on DCS / PLC. Background technique [0002] The electronic belt scale is widely used in the batching system, mainly for the dynamic conveying of the pellets, the amount of coke, and the amount of coal powder. Although the models and specifications of the electronic belt scales shipped by various factories are different, the principle is basically the same. They are all based on measurement The heavy sensor detects the instantaneous flow, the speed sensor detects the speed (or the default speed), and the instantaneous flow × speed is used to accumulate the weight. The control of the weight is concentrated on the flow accumulation instrument. The dynamic flow error is about 5%, and the control weight needs to be It is set on the instrument, and the instrument outputs upper and lower limit contact signals for co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G11/18
CPCG01G11/18
Inventor 衡旭东韦东蔡晓东李刚
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM
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