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Experimental device for simulating condensate layer of blast furnace hearth

An experimental device and blast furnace technology, applied in the field of blast furnace ironmaking, can solve the problems of inability to simulate the temperature and pressure conditions of a blast furnace hearth, and achieve the effects of ensuring safety and punching effect, convenient use and reasonable design.

Active Publication Date: 2019-02-01
SHANGHAI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Experimental device for simulating condensate layer of blast furnace hearth
  • Experimental device for simulating condensate layer of blast furnace hearth

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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 iron making, and particularly relates to an experimental device for simulating the condensed iron layer of a blast furnace hearth. The experimental device comprises a heating sleeve, a thermocouple, and a gas cylinder communicates with an air inlet. The top of the heating sleeve is provided with the air inlet and an air outlet. A bottomrefractory brick layer, a sample crucible, a melting funnel communicating with the sample crucible, and a top gas permeable refractory brick layer are arranged inside the heating sleeve from bottom to top. The top gas permeable refractory brick layer is provided with an air inlet passage, and the air inlet, the air inlet passage, and the melting funnel communicate in sequence. The thermocouple runs through the air outlet and the top gas permeable refractory brick layer, is inserted into the funnel wall of the melting funnel, and is electrically connected to a temperature control display. According to the experimental device for simulating condensate layer of blast furnace hearth, the experimental device is heated to make the metal particles to their melting points, at the high pressure ofthe shielding gas, the metal enters the sample crucible along the melting funnel, thereby filling the coke and coke, and the coke and the inside of the coke pores with metal, and preparing the desired sample of the iron oxide layer.

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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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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