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Method for reducing grinding belt fault

A fault and belt technology, applied in conveyor control devices, conveyors, conveyor objects, etc., can solve the problems of short effective sensing time, fast flickering frequency, and low reliability of sensors, and achieve short effective sensing time. The effect of long induction time and low flickering frequency

Inactive Publication Date: 2015-04-08
GUANGXI YUFENG CEMENT
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Problems solved by technology

[0026] The team members confirmed the above 7 factors one by one by using methods such as on-site investigation, verification, and measurement, and finally determined the main reasons for the high failure rate of the 1009 grinding belt as follows: the effective sensing time of the sensor is too short; the sensor control circuit has no isolation protection circuit ;Sensor flashing frequency too fast
[0027] In the process of realizing the present invention, the inventor found that there are at least defects such as short effective sensing time, low reliability and too fast flashing frequency in the prior art

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[0042] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0043] According to an embodiment of the present invention, such as figure 1 As shown, a method of reducing the failure of the grinding belt is provided, including:

[0044] a. At the belt pulley site, finalize the iron sheet to be designed, process and install a new induction iron sheet to ensure that the effective induction time is above the standard value of 0.2s;

[0045] b. On the DCS cabinet, add an isolation circuit to protect the terminals of the FM136 input module;

[0046] c. In the control cabinet and on site, select a sensor with alarm settings, change the signal transmission mode of the sensor, and reduce the damage to the FM136 module and the sensor; ...

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Abstract

The invention discloses a method for reducing the grinding belt fault. The method comprises the following steps: a, shaping an iron sheet to be designed on the belt roller site, processing and mounting a new induction iron sheet, and ensuring that the effective induction time is above a standard valve, namely 0.2 second; b, additionally arranging an isolation circuit on a DCS (Distributed Control System) cabinet and protecting an FM136 input module terminal; c, selecting sensors with alarm setup functions in the control cabinet and on the site, changing a signal transmission mode of the sensor, reducing the damage of an FM136 module and the sensors. According to the method for reducing the grinding belt fault, disclosed by the invention, the defects of short effective induction time, low reliability, too high flash frequency and the like in the prior art can be overcome so as to realize the advantages of long effective induction time, high reliability and low flash frequency.

Description

technical field [0001] The invention relates to the technical field of cement processing, in particular to a method for reducing failures of grinding belts. Background technique [0002] Since the slag vertical mill was put into production, the average number of failures of the 1009 grinding belt per month is 2.7 times. The 1009 belt is the grinding belt that sends the dry slag guided by the 1048 electric three-way valve into the slag vertical mill. Its conveying length is 10.2 meters, and it is equipped with protective devices such as speed sensors. It is an important equipment in the mine mill system. If it fails and stops, it will cause the slag vertical mill to stop. [0003] In order to effectively carry out the activities and determine the target value of the activities, our statistical survey of the records of 1009 grinding belt failures and shutdowns from January 2012 to June 2012 is as follows: [0004] [0005] Note: The downtime refers to the sum of the time ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G43/00
CPCB65G43/00B65G43/02B65G2203/0275B65G2203/042
Inventor 闭忠祥张芳
Owner GUANGXI YUFENG CEMENT
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