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furnace

A furnace and hearth technology, applied in the field of furnaces and their operation, can solve problems such as inability to fully utilize the smelting power

Inactive Publication Date: 2011-12-14
PRIMETALS TECH GERMANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A disadvantage of such a fixed operating chart or operating program for controlling an electric arc furnace is that it is designed either not to fully utilize the available melting power, Either fire wear resistance and heat loss tolerance must be improved

Method used

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Embodiment Construction

[0030] For the sake of clarity, the same reference signs are always used in the figures for identical or similar components.

[0031] exist figure 1 A furnace 10 with a hearth 20 can be seen in the figure. Three vibration exciters 40 , 41 and 42 are arranged on the outside of the furnace wall 30 of the furnace hearth 20 . The vibration exciters 40 , 41 and 42 are preferably arranged rotationally symmetrically on the furnace wall 30 at angles of rotation of 120° and 240°.

[0032] The vibration exciters 40 , 41 and 42 are preferably referred to as inertial vibration exciters or inertial exciters.

[0033] exist figure 1 It can also be seen in FIG. 3 that three sensors 50 , 51 and 52 are arranged externally on the furnace wall 30 of the furnace hearth 20 . The three sensors 50, 51 and 52 are also rotationally symmetrically arranged on the furnace wall 30 at angles of rotation of 120° and 240°, as in figure 2 As can be seen in (B=120°, A=60°).

[0034] The arrangement of t...

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Abstract

In a melting furnace, a vibration inducer is installed on a furnace vessel, a sensor is arranged opposite or at another place on the furnace vessel and a signal recording and calculation unit is connected to the vibration inducer and the sensor. The melting process can be monitored and the progress of melting can be measured by measuring the signals of the vibration inducement after having passed through the interior of the furnace by this sensor and evaluating the signals of the signal recording and calculation unit. Thus, process-controlled, state-oriented regulation of the melting process can be carried out and the electric arc power is optimally matched to the respective state of the melting process. The signal of the sensor is preferably correlated with the excitation signal of the vibration inducer and / or conclusions are drawn about the melting process by combined evaluation of the vibration inducement and the measured vibration.

Description

technical field [0001] The present invention relates to a furnace and a method for its operation. Background technique [0002] Furnaces and their operating methods are known, for example, from the German publication DE 10 2005 034 378 A1 and the German patent publication DE 10 2005 034 409 B3. [0003] When steel is manufactured in a furnace, the temperature and harsh environment prevent the measurement and characterization of the furnace contents during the melting process. If an electric arc furnace is used for melting different types of steel scrap, the scrap is melted in the area of ​​action of an electric arc (radiation), which is usually generated by means of three electrodes. Since the arc length is generally kept constant during operation of the arc furnace, the arc / electrode will drill holes in the scrap. All scrap can be melted continuously by sliding off from the sides and collapsing the scrap. The process is very inhomogeneous in time and space, since the fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46C21C5/52F27B3/28F27D19/00F27D21/00
CPCC21C5/5211F27D19/00F27D21/00F27B3/28C21C5/4673Y02P10/20C21C5/46C21C5/52
Inventor K.克吕格尔S.利德贝特尔D.里格尔
Owner PRIMETALS TECH GERMANY