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Measuring and controlling device for roasting quality of self-baking electrode of calcium carbide furnace and method

A technology of self-baking electrodes and measurement control, which is applied in measuring devices, using electrical devices, measuring heat, etc., can solve problems such as unpredictable electrode baking temperature and quality, soft breakage of electrodes, and over-baked iron sheets of electrodes, so as to prevent over-baking Iron sheet burning accidents, preventing electrode soft breakage, and improving operating efficiency

Active Publication Date: 2013-12-18
NANTONG ZHI HANG MECHANICAL & ELECTRICAL TECH CO LTD
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AI Technical Summary

Problems solved by technology

When the electrode is pressed and released, the operator cannot predict the roasting temperature and quality of the electrode. It often occurs that the electrode roasting quality does not meet the requirements and the electrode is pressed and released in advance, resulting in soft breakage of the electrode, or the electrode is not pressed and released in time, causing the electrode to over-roast the iron sheet.

Method used

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  • Measuring and controlling device for roasting quality of self-baking electrode of calcium carbide furnace and method

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Embodiment Construction

[0017] A measurement and control device for the baking quality of self-baking electrodes of calcium carbide furnaces, such as figure 1 As shown, it includes an electrode 1, an electrode shell 2, an electrode shield 3, a conductive rib 4, an inner thermocouple 5, an outer thermocouple 6, and a high-temperature insulating support 7, etc. in:

[0018] Between the two conductive ribs closest to the high temperature zone 8 in the center of the electric furnace, two inner thermocouples (i.e. temperature sensors) 5 are arranged, which are respectively arranged near the horizontal position of the upper end and the horizontal position of the lower end of the ribs, respectively called Inner upper thermocouple, inner lower thermocouple.

[0019] Between the two conductive ribs farthest from the high temperature zone 8 in the center of the electric furnace, there are two outer thermocouples (i.e. temperature sensors) 6, which are respectively arranged near the horizontal position of the ...

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Abstract

The invention discloses a method for measuring the roasting temperature of a self-baking electrode of a calcium carbide furnace and controlling slipping of the electrode. The method has the advantages that more than four temperature sensors are mounted at corresponding positions of the electrode, accordingly, the roasting temperature of the electrode is measured in real time, the roasting quality and the speed of the electrode are computed and judged, slipping operation is automatically controlled according to the roasting quality and the speed, the smelting requirement on the length of the electrode is met assuredly, accidents of soft breakage of the electrode and overburning of a coiled iron sheet are stopped, and purposes of improving running efficiency of the calcium carbide furnace, reducing smelting power consumption and enhancing yield are achieved.

Description

technical field [0001] The invention relates to a device and method for measuring and controlling the baking quality of a self-baking electrode of a calcium carbide furnace. Background technique [0002] Calcium carbide furnace is a kind of submerged arc furnace series. The smelted product is calcium carbide. The core theory of its smelting is: through ionized air to form a directional high-temperature ion flow-arc, convert electrical energy into heat energy, and provide a high enough temperature for the reduction reaction field. [0003] The length of the electrode depends on the balance between the firing speed of the electrode and the consumption speed of the electrode tip. During the smelting process, as the liquid level (or slag level) of the molten pool at the bottom of the furnace continues to rise, the charge often stays down, the electrode tip moves up due to burning loss, and the conductivity of the molten pool changes. It is necessary to adjust the electrode temp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B3/28G01K7/04
Inventor 崔存生
Owner NANTONG ZHI HANG MECHANICAL & ELECTRICAL TECH CO LTD
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