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Control of refractory wear

A refractory material and loss control technology, applied in the field of refractory material wall, can solve the problems of output loss, installation difficulty, expensive refractory material, etc., and achieve the effect of prolonging the service life of the furnace

Inactive Publication Date: 2009-09-02
XSTRATA QUEENSLAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Replacing refractories represents a significant expense due to expensive refractories, difficult installation and loss of production during furnace shutdowns

Method used

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  • Control of refractory wear
  • Control of refractory wear
  • Control of refractory wear

Examples

Experimental program
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Effect test

Embodiment Construction

[0039] see figure 1 , the refractory melting furnace 100 consists of a steel shell 101 enclosing a refractory lining 102 . The temperature of the melt 106 is measured by a thermocouple 105 extending from the shell 101 into the interior of the furnace to "look" at the melt 106 .

[0040] The temperature of the refractory layer 102 is monitored with thermocouples "in the brick" as shown at locations 104a, 104b, 104c. The thermocouples inside the brick are embedded in the refractory material at a defined depth. The temperature sensors used are typically type N thermocouples, but other types of thermocouples as well as optical pyrometers can also be used. The thermocouples within the bricks were carefully positioned because the distance at which they were inserted from the outer surface of the furnace affected the calculation of the heat transfer to the material.

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Abstract

Control the refractory material (102) in the furnace ( 100), the optimum set point temperature is determined by a predetermined relationship between the refractory temperature and the viscosity of the melt, wherein the optimum set point temperature is one that can be removed from the melt (106) from the furnace ( 100) The minimum temperature at which the desired velocity is maintained during discharge.

Description

technical field [0001] The present invention relates to refractory linings and refractory walls for containing melts in the production of ferrous and non-ferrous / non-ferrous metals. Background technique [0002] Any discussion of prior art throughout this specification should in no way be considered as an acknowledgment of the fact that such prior art is widely known or forms part of the common general knowledge in the field. [0003] Refractory linings and walls are used in the production of iron, steel and non-ferrous metals. The purpose of the refractory lining or walls is to contain the "melt" in the furnace. The melt may include molten metals, oxides, slag, and molten sulfides. The furnace is usually a steel shell lined with refractory material. Refractories are typically crystalline solids, carbides, carbon or graphite, designed to resist the high temperature and corrosive environment within a furnace and to accommodate the high freezing point of the melt. [0004]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D21/04F27D23/00C21C5/46C21C5/44F27D1/00F27D3/15F27D3/16F27D19/00F27D21/00F27D99/00
CPCF27D2019/0087F27D2019/0056C21C2005/448C21B7/24F27D21/0021F27D21/00C21C5/46C21B7/06C21C5/4673C21C5/44F27D3/1509C21C2005/5288F27D2003/168F27D2019/0003Y02P10/20
Inventor J·S·爱德华兹J·图普赖宁
Owner XSTRATA QUEENSLAND