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On-line Diagnosis Method of Air Leakage Fault of Sintering Machine

A diagnostic method and technology for sintering machines, which can be used to detect the appearance of fluids, furnaces, and instruments at leakage points, and can solve the problems of exhaust fan energy waste, complex structure, and air leakage, and achieve low occupancy of computing resources and memory resources. The effect of low computational complexity and improved reliability

Active Publication Date: 2019-12-13
HUATIAN ENG & TECH CORP MCC +1
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Problems solved by technology

Due to the sealing structure of the sintering machine and the maintenance problems of long-term use, air leakage will occur during the sintering production process, resulting in insufficient combustion and waste of exhaust fan energy.
Due to the complex structure of the sintering machine and its attached bellows, air pipes, valves, etc., and working at high temperature, the detection of air leakage rate has always lacked effective means

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  • On-line Diagnosis Method of Air Leakage Fault of Sintering Machine
  • On-line Diagnosis Method of Air Leakage Fault of Sintering Machine
  • On-line Diagnosis Method of Air Leakage Fault of Sintering Machine

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Embodiment Construction

[0047] The present invention aims to provide an online diagnosis method for air leakage faults of sintering machines, which realizes comprehensive monitoring of various air leakage conditions of sintering machines through online collection and analysis of sound signals at the sintering production site. Due to the complex structure of the sintering machine, it will cause frequent and frequent air leakage failures. In other words, the sintering machine is prone to air leakage faults, but because the fault involves the airtightness of the structure, for large equipment, there are many fault points and fault causes with different mechanisms, so it is difficult to correct the air leakage of the sintering machine Comprehensive fault monitoring. The sound signal has the characteristics of fast propagation speed and not easy to be blocked. According to the long-term production experience, an important phenomenon of air leakage failure of the sintering machine is the howling sound caus...

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Abstract

The invention discloses an online diagnosis method for an air leakage fault of a sintering machine. The method comprises the following steps of establishing an offline model of the air leakage fault of the sintering machine on the basis of sound source characteristics; performing online diagnosis on the air leakage fault of the sintering machine according to the offline model. Sound signals have the characteristics of being high in propagation speed and unlikely to be blocked. According to the summary of long-term production experience, an important phenomenon of the air leakage fault of the sintering machine is that a whistling sound caused by wind passing through a narrow space can be generated. The sound generated by air leakage is generally sharp and has certain discrimination from background sounds of a factory. Therefore, according to the characteristic of the air leakage phenomenon of the sintering machine, the method of analyzing the sound signals of a workshop is adopted for achieving comprehensive online detection and fault diagnosis of the air leakage fault of the sintering machine.

Description

technical field [0001] The invention relates to an online diagnosis method for an air leakage fault of a sintering machine. Background technique: [0002] Iron ore sintering is an important link in the modern iron and steel metallurgical process. Its main production link is to ignite and burn evenly mixed small granular raw materials on a trolley-type sintering machine to fuse them into massive sinter. In order to ensure the strength and chemical composition of sinter agglomerates, the raw materials need to be fully burned on the sintering machine. The evenly mixed small granular raw materials are uniformly distributed in the form of a thick material layer on the sintering machine. In order to ensure the full combustion of the raw materials, the sintering machine installs a bellows under the raw material layer and connects with an exhaust fan. Through the negative pressure generated by the exhaust fan, the Fresh air is brought into the bed of burning material. Due to the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H17/00G01M3/24F27B21/14
CPCF27B21/00
Inventor 方田叶学农凌云
Owner HUATIAN ENG & TECH CORP MCC
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