Method for monitoring durability of electronic belt scale

An electronic belt scale and durability technology, which is applied in the field of electronic belt scale durability monitoring, can solve the problems of time-consuming, inability to adjust measurement deviation in time, poor measurement accuracy and durability, and achieve the effect of ensuring measurement accuracy

Inactive Publication Date: 2014-07-02
SAIMO ELECTRIC
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The poor measurement accuracy and durability of electronic belt scales is the main reason that has affected the low accuracy of belt scales for many years. The softness of the belt directly affects the weighing results. Because the belt tension on each belt conveyor and the hardness of the belt itself are different, especially the belt hardness is changed by the influence of the external environment temperature. These factors lead to belt scales Poor measurement accuracy and durability
At present, the current technology to solve this problem is to carry out material calibration or simulation calibration regularly. Since the measurement deviation cannot be adjusted in time due to regular calibration, the measurement accuracy is poor, and the material calibration or simulation calibration is time-consuming, inconvenient and expensive.

Method used

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  • Method for monitoring durability of electronic belt scale
  • Method for monitoring durability of electronic belt scale

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] Embodiment: Test conditions: belt width: 1800mm; belt speed: 3.5 m / s; flow rate: 3800t / h

[0027] Under the operating condition of material flow rate of 3800t / h, 4 sets of independent weighing loaders measure the weight value:

[0028] Rear weighing loader 1: Material weight value 710.1kg

[0029] Rear A weighing load carrier 2: material weight value 708.5kg

[0030] Front A weighing load carrier 3: material weight value 706.9.1kg

[0031] Front weighing load carrier 4: Material weight value 705.3kg

[0032] Difference = Rear weighing loader 1 - Front weighing loader 4 = 710.1-705.3 = 4.8kg

[0033] Difference rate=4.8 / 710.1=0.67%, at this time the number of span calibration is A.

[0034] When the external environment changes, the belt scale instrument 8 detects that the difference rate exceeds B% of the obtained difference rate, and the belt scale instrument 8 uses B% to correct the range calibration number A to obtain the corrected range calibration n...

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Abstract

The invention discloses a method for monitoring durability of an electronic belt scale. The characteristic that the tension of a belt on the tail of a belt conveyor is small, and the tension of a belt along the position close to the head direction of the belt conveyor is larger is utilized, two sets of independent weighing loaders are arranged, due to the fact that the arranged weighing loaders are arranged at the different positions of the belt conveyor, when the same materials pass through the weighing loaders, the influences of the tension of the belt on the detected material weight are different, and therefore the weight difference value of weighing materials of the two sets of weighing loaders can be obtained. The weight difference value is compared with the weight difference value obtained in the correcting process in real time, if the value exceeds a certain error, the external environment, such as hardness and tension, of the belt is changed, the range calibration number of a belt scale instrument is corrected in time, and the accurate metering is ensured.

Description

technical field [0001] The invention relates to a durability monitoring method of an electronic belt scale, belonging to the technical field of dynamic weighing. Background technique [0002] The poor measurement accuracy and durability of electronic belt scales is the main reason that has affected the low accuracy of belt scales for many years. The softness of the belt directly affects the weighing results. Because the belt tension on each belt conveyor and the hardness of the belt itself are different, especially the belt hardness is changed by the influence of the external environment temperature. These factors lead to belt scales Measuring accuracy is poor in durability. At present, the current technology to solve this problem is to carry out material calibration or simulation calibration regularly. Since the measurement deviation cannot be adjusted in time due to regular calibration, the measurement accuracy is poor, and the material calibration or simulation calibrati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G23/01
Inventor 厉达刘志良张兴国
Owner SAIMO ELECTRIC
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