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Method for measuring thickness of slag layer for fly ash fusion treatment

A technology of thickness measurement and slag layer, applied in the field of thickness measurement, can solve problems such as misreading, and achieve the effect of improving accuracy and reliable interpretation

Active Publication Date: 2019-09-24
JIANGSU TIANYING ENVIRONMENTAL PROTECTION ENERGY COMPLETE EQUIP CO LTD
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  • Description
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Problems solved by technology

Using the method of data interpretation of the aforementioned patents will lead to misinterpretation

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  • Method for measuring thickness of slag layer for fly ash fusion treatment
  • Method for measuring thickness of slag layer for fly ash fusion treatment
  • Method for measuring thickness of slag layer for fly ash fusion treatment

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Embodiment Construction

[0024] The present invention will be described in further detail below through examples, and the following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0025] Such as figure 1 As shown, a method for measuring the thickness of a slag layer for fly ash melting treatment of the present invention comprises the following steps:

[0026] Step 1: Build an arc voltage measurement device; the arc voltage measurement device includes a DC power supply 1, a voltage measurement unit 2, a cathode electrode 3, an anode electrode 4, a furnace body 5, a slag layer 6 and a metal layer 7, and the upper end of the cathode electrode is connected to the DC power supply The lower end of the anode electrode is connected to the positive electrode of the DC power supply, and the two ends of the voltage measurement unit are respectively connected to the upper end of the cathode electrode and the lower end of the anode electrode....

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Abstract

The invention discloses a method for measuring the thickness of a slag layer for fly ash fusion treatment. Voltage data are collected every 0.5s and a trench of voltage changes with time is depicted; whether an electrode voltage is larger than a set value is determined cyclically; bottom height determination of a slag layer is performed; the number N of times of changing of the voltage from a rising state to a declining state is determined cyclically; when the N is larger than a set number of times, voltage changing amplitudes from the rising state to the declining state are calculated successively and whether the voltage changing amplitude exceeds an amplitude changing preset value within the time interval is determined; if so, upper height determination of the slag layer is performed; and the thickness of the slag layer is calculated based on the data of the upper height of the slag layer and the bottom height of the slag layer. Therefore, the precision of the thickness measurement of the slag layer is improved.

Description

technical field [0001] The invention relates to a method for measuring thickness, in particular to a method for measuring the thickness of a molten slag layer used in the melting treatment of fly ash. Background technique [0002] The invention patent with the patent number CN201710305547.6 discloses a new double-electrode DC arc system for fly ash melting, which discusses the method of processing fly ash in a DC arc melting furnace. The Joule heat in the slag layer is mainly distributed in the depth range of several centimeters below the surface of the molten pool. It has been discussed in the patent "A Method for Measuring the Thickness of the Slag Layer of a Hazardous Waste Furnace", in order to judge that the thickness of the slag layer is lower than the critical thickness, the method was developed for real-time measurement of the slag layer thickness. [0003] This method needs to manually judge the moment when the tip of the electrode separates from the metal layer an...

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Application Information

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IPC IPC(8): G01B7/06
CPCG01B7/06
Inventor 钟雷李申杰吕浩孙钟华田君国李要建
Owner JIANGSU TIANYING ENVIRONMENTAL PROTECTION ENERGY COMPLETE EQUIP CO LTD
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