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A pre-reduction sintered cup test device and test method

The technology of a test device and test method, which is applied in the field of iron and steel metallurgy, can solve the problems of lack of pre-reduction technology, restrict the research and development of pre-reduction sinter, and cannot solve the problems of re-oxidation and over-melting bonding of pre-reduction sinter, so as to improve Productivity and quality improvement effects

Active Publication Date: 2022-05-20
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the lack of corresponding basic research methods for pre-reduction technology, the general sintering cup test system cannot solve the re-oxidation and over-melting bonding of pre-reduction sintering, as well as the series requirements of pre-reduction sintering on gas properties, temperature, and pressure. Seriously restricting the research and development of pre-reduction sintering, it is urgent to build a set of operable and scalable pre-reduction sintering test equipment and operation methods, so as to promote the development of domestic pre-reduction sintering basic research

Method used

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  • A pre-reduction sintered cup test device and test method

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Embodiment 1

[0023] When carrying out the pre-reduction sintering test, after the sintering mixture is distributed into a diameter of 200mm and a high 700mm pre-reduction sintering cup body 15, the electromagnetic switch 2 and the pressure measuring instrument 3 are controlled by the computer acquisition control system 17 and the display measuring instrument 16. The air flow measurement controller 4 introduces the air 1 at natural temperature into the gas mixer 9, and after being heated to 200°C by the gas heating furnace 10, it is passed into the igniter 14, and the liquefied gas that is passed in is controlled by the measurement controller 12 11 for mixed ignition, the ignition temperature is 1000°C, after ignition, the liquefied gas 11 is closed by the measurement controller 12, then the air 1 is closed by the air flow measurement controller 4, and the gas heating furnace 10 is closed. Then, the igniter 14 is lowered by the lifting and rotating mechanism 13 and is fully sealed with the p...

Embodiment 2

[0025]When carrying out the pre-reduction sintering test, after the sintering mixture is distributed into the pre-reduction sintering cup body 15 with a diameter of 300 mm and a height of 1000 mm, the electromagnetic switch 2 and the pressure measuring instrument 3 are controlled by the computer acquisition control system 17 and the display measuring instrument 16. The air flow measurement controller 4 introduces the air 1 at natural temperature into the gas mixer 9, and then is heated to 600°C by the gas heating furnace 10, and then passes into the igniter 14, and the gas 11 passed in is controlled by the measurement controller 12 Carry out mixed ignition, the ignition temperature is 1100°C, after ignition, the gas 11 is closed by the measurement controller 12, then the air 1 is closed by the air flow measurement controller 4, and the gas heating furnace 10 is closed. Then, the igniter 14 descends through the lifting and rotating mechanism 13 and realizes a fully sealed connec...

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Abstract

The invention discloses a pre-reduction sintering cup test device and a test method. The pre-reduction sintering cup body and the igniter are connected to each other in a sealed manner through a screw buckle, the igniter is driven by a lifting and rotating mechanism; the top of the igniter is sealed , connected to the intake pipe through the rotating shaft provided at the top; the intake pipe is connected to the reducing gas intake pipe and the gas distribution heating system; The direction also connects the oxygen inlet pipe, the nitrogen inlet pipe, the gas mixer and the gas heating furnace in sequence.

Description

technical field [0001] The invention belongs to the field of iron and steel metallurgy, and relates to a pre-reduction test method, in particular to a pre-reduction sintering cup test device and a test method. Background technique [0002] In the steel industry, the energy consumption of ironmaking accounts for more than 50% of the total energy consumption of steel production. How to effectively reduce the energy consumption of blast furnaces has become an important task for enterprises and society. With the development of large-scale blast furnaces, the blast furnace production line is the lifeline for the entire ironmaking system. How to ensure the safe, normal and orderly development of the lifeline while reducing its huge energy consumption has increasingly become the unanimous pursuit of all ironmaking workers . How to reduce the coke ratio and fuel ratio, which account for about 75% of the total energy consumption of the blast furnace and about 85% of the total fuel c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/02
CPCG01N25/02Y02P10/20
Inventor 刘杰周明顺朱建伟宫作岩翟立委张辉徐礼兵李建军马贤国董刚
Owner ANGANG STEEL CO LTD