An experimental device for simulating the iron-condensed layer in the hearth of a blast furnace

An experimental device and blast furnace technology, applied in the field of blast furnace ironmaking, can solve the problems that the temperature and pressure conditions of the blast furnace hearth cannot be simulated, and achieve the effects of low cost, convenient use, and prolonging the life of the blast furnace

Active Publication Date: 2021-04-30
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the density difference of the constituent materials reaches 5 times, it is impossible to prepare coke and iron by uniform mixing under the conditions of completely simulating the temperature and pressure of the blast furnace hearth

Method used

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  • An experimental device for simulating the iron-condensed layer in the hearth of a blast furnace
  • An experimental device for simulating the iron-condensed layer in the hearth of a blast furnace

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Embodiment Construction

[0037] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0038] In a specific embodiment, such as figure 1 As shown, the experimental device for simulating the congealed iron layer in the hearth of a blast furnace includes: a heating sleeve, a thermocouple 10 , a temperature control display device 17 and a gas cylinder 16 .

[0039] The heating sleeve includes a sleeve body 2, a lower cover 1 detachably fixedly connected to the sleeve body 2, and a detachably fixedly connected sleeve body 2. The upper cover 8 is provided with an air inlet and an exhaust port. 7. Specifically, the upper cover 8 is screwed to the sleeve body 2 , and the lower cover 1 is screwed to the sleeve body 2 . The sleeve body 2 is made of steel.

[0040] The upper cover body 8 is provided with an air inlet and an exhaust port 7, and a bottom ...

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Abstract

The invention belongs to the technical field of blast furnace ironmaking, and in particular relates to an experimental device for simulating the congealed iron layer in a hearth of a blast furnace. The bottom layer of refractory bricks, the sample crucible, the melting funnel connected to the sample crucible and the top breathable refractory brick layer are arranged in sequence from bottom to top. The thermocouple is connected with the melting funnel in turn; the thermocouple runs through the exhaust port and the top air-permeable refractory brick layer and is inserted into the funnel wall of the melting funnel, and the thermocouple is electrically connected to the temperature control display instrument; and, the gas connected to the air inlet bottle. Through this device, the experimental device is heated to make the metal particles reach their melting point. Under the high pressure of the protective gas, the metal will enter the sample crucible along the melting funnel, so that the space between coke and coke and the inside of the coke pores will be filled with metal. The desired simulated iron layer samples can be prepared.

Description

technical field [0001] The invention belongs to the technical field of blast furnace ironmaking, and in particular relates to an experimental device for simulating a congealed iron layer in a hearth of a blast furnace. Background technique [0002] Blast furnace is the main equipment for ironmaking production. With the development of large-scale and long-life blast furnaces, the life of blast furnaces is a key factor restricting the development of blast furnaces. In the harsh working environment of the blast furnace, the hearth and bottom are the most prone to damage. The furnace bottom brick lining arrangement and its cooling conditions have basically solved the problem of furnace bottom erosion, so the life of the carbon bricks in the hearth area determines the life of the hearth. The core of blast furnace hearth longevity technology is to form a stable solidified iron layer on the surface of blast furnace hearth lining. [0003] Scholars at home and abroad have done a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/48G01N33/00G01N1/28
CPCG01N1/28G01N25/4846G01N33/00
Inventor 余仲达温旭郑少波王炜徐润生
Owner SHANGHAI UNIV
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