Method for measuring noise of smelting fused magnesium in arc furnace

A technology of electric arc furnace and fused magnesium, which is applied in measuring devices, radio wave measuring systems, measuring ultrasonic/sonic/infrasonic waves, etc., can solve the problems of inability to track noise data, data cannot be used for noise source location, etc., to reduce work energy, suppressing noise, and reducing energy consumption

Inactive Publication Date: 2014-09-24
营口东吉科技(集团)有限公司 +1
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Problems solved by technology

The above method has limitations in describing the noise distribution of electric arc furnace smelting fused magnesium. On the one hand, the data measured at a single measurement point cannot be used to locate the noise source; And after a week of cooling, monitoring the noise inside the fused mass during this process can effectively judge the state of the molten pool and the crystallization of fused magnesium, but the measurement points fixed on the furnace table cannot track the noise data of the fused mass to measure the cooling process

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  • Method for measuring noise of smelting fused magnesium in arc furnace
  • Method for measuring noise of smelting fused magnesium in arc furnace
  • Method for measuring noise of smelting fused magnesium in arc furnace

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Embodiment Construction

[0029] The present invention will be described in detail with reference to the accompanying drawings for a deeper understanding of the objects, features and advantages of the present invention.

[0030] The detection equipment involved in the present invention mainly includes a noise collecting device and a noise signal receiving and processing device. Such as figure 1 As shown, the noise collection device mainly includes a thermoelectric power generation module 12 , a hot-swappable power interface 14 , a lithium battery power supply module 19 , a microphone array module 17 and a wireless router 16 . The arrangement height of the thermoelectric power generation module 12 is located in the middle of the furnace shell 11, because the surface temperature of the furnace shell there is the highest, which is conducive to improving the power generation efficiency. The thermoelectric power generation module 12 and the lithium battery power supply module 12 are connected through a pow...

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Abstract

The invention relates to a method for measuring the noise of smelting fused magnesium in an arc furnace, and the method belongs to the technical field of testing of arc furnace smelting of fused magnesium. The method comprises: (1) a microphone array is arranged; (2) analog-to-digital conversion is conducted; (3) data is transmitted to a host computer; (4) the host computer saves a noise signal into a hard disk in the form of a data flow disk; (5) the signal is extracted from the hard disk for replay; (6) the replayed signal is subjected to FFT and 1 / 3 octave band conversion and obtained results are displayed in the form of images; (7) according to recorded starting and ending time of each production stage and sample time parameters bound with noise in step (2), the image is divided into six stages; (8) data is subjected to filtering and the image data is subjected to operation; (9) noise of a certain frequency band is picked from the 1 / 3 octave band conversion image for research; (10) the source of the noise is located. The method is low in power consumption and convenient for wiring. The method can display the source of the noise, investigate the cause of the noise, suppress the noise, and reduce energy consumption.

Description

technical field [0001] The invention relates to a method for measuring the noise of electric arc furnace smelting fused magnesium, and belongs to the technical field of electric arc furnace smelting electric fused magnesium detection. Background technique [0002] Smelting fused magnesium in an electric arc furnace needs to go through processes such as feeding, spreading, opening the dust collector, starting the furnace, smelting, stopping the furnace, closing the dust collector, cooling, breaking the shell, and sorting. In the process of furnace start-up, smelting, and shutdown, the operating status of transformers, conductive cross arms and electrodes can be monitored by means of noise, the shape of the molten pool can be explored, and the dynamics of the arc can be inferred. During the cooling process of the fused lump, the shape and density of the molten pool after crystallization can also be deduced by using the noise of the fused magnesium crystallization. [0003] We...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G01S5/20
Inventor 付友崔军崔俊峰王宁会
Owner 营口东吉科技(集团)有限公司
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