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Iron ore powder assimilation temperature detection method

A detection method and technology for iron ore powder, which are applied in the direction of measuring device, strength characteristics, and the strength of materials using a stable tension/pressure test, can solve the problems of high subjectivity in the detection of assimilation temperature, and achieve the effect of improving accuracy

Active Publication Date: 2017-07-14
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problem that the assimilation temperature of iron ore powder is relatively subjective at present, and to provide a detection method for the assimilation temperature of iron ore powder. The displacement mutation during the heating process can judge the assimilation temperature of iron ore powder according to the displacement mutation

Method used

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  • Iron ore powder assimilation temperature detection method
  • Iron ore powder assimilation temperature detection method
  • Iron ore powder assimilation temperature detection method

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Embodiment 1

[0041] combine figure 1 , figure 2 with image 3 , a device for detecting assimilation temperature of iron ore powder based on displacement mutation in this embodiment includes a heating unit 100 and a detection unit 200; wherein the heating unit 100 includes a sample stage 110 and a heating furnace 120, and the sample stage 110 is arranged in the heating furnace In 120, the heating unit 100 is used for heating the iron ore powder sample 400 on the sample stage 110; figure 1 shown), of course, the heating furnace 120 can also be heated in other ways, for example: infrared heating and the like.

[0042] The detection unit 200 includes a measuring rod 210, a displacement sensor 220 and a force applying mechanism 230; the top of the measuring rod 210 is connected with the force applying mechanism 230, and the force applying mechanism 230 is used to drive the measuring rod 210 to apply pressure to the iron ore powder sample 400; The bottom of the rod 210 is provided with a sam...

Embodiment 2

[0053] The basic content of this embodiment is the same as that of Embodiment 1, and the difference is that the temperature-measuring thermocouple 240 is provided with a thermocouple horizontal section 241, and the temperature-measuring end 243 is arranged at the end of the thermocouple horizontal section 241 (such as figure 2 As shown), the thermocouple horizontal section 241 is arranged in the sample pressing part 211, and the temperature measuring end 243 is located at the edge of the sample pressing part 211, that is, the end of the thermocouple horizontal section 241 extends to the iron ore powder sample The edge position of 400, the temperature measuring end 243 of the temperature measuring thermocouple 240 is close to the edge position of the iron ore powder sample 400, thereby improving the accuracy of the temperature detection around the iron ore powder sample 400, and then improving the iron ore powder assimilation temperature The accuracy of detection provides relia...

Embodiment 3

[0055] The basic content of this embodiment is the same as that of Embodiment 1, the difference is that: the temperature measuring end 243 is connected with the auxiliary temperature measuring rod 242, the auxiliary temperature measuring rod 242 is arranged at the edge position of the sample pressing part 211, and the auxiliary temperature measuring rod 242 is set along the vertical direction; the distance between the auxiliary temperature measuring rod 242 and the edge of the iron ore powder sample 400 is L, then 1mm<L<2mm, the present embodiment L=1.5mm, the material of the auxiliary temperature measuring rod 242 is carbonization Silicon; the auxiliary temperature measuring rod 242 is arranged parallel to the edge of the iron ore powder sample 400 , and the bottom of the auxiliary temperature measuring rod 242 is in contact with the surface of the CaO pressure sheet 111 . The auxiliary temperature measuring rod 242 of this embodiment is close to the edge of the iron ore powde...

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Abstract

The invention discloses an iron ore powder assimilation temperature detection method and belongs to the field of detection of ore powder sintering characteristics. The iron ore powder assimilation temperature detection method comprises the following steps: applying a pressure on an iron ore powder sample by a measuring rod in a heating process, and detecting temperature of the iron ore powder sample and sudden change of displacement of the measuring rod in a temperature rising process, wherein the temperature when the displacement of the measuring rod is suddenly changed is namely the assimilation temperature of iron ore powder, and the sample is heated by virtue of a heating unit in the detection process. The detection method disclosed by the invention has the advantages that sudden change of displacement of the iron ore powder in the heating process is detected by virtue of a detection unit, and the temperature when the displacement of the measuring rod is suddenly changed is namely the assimilation temperature of the iron ore powder, so that the assimilation temperature of the iron ore powder is accurately and objectively detected.

Description

technical field [0001] The invention relates to the field of detection of sintering characteristics of iron ore powder, in particular to a detection method of iron ore powder assimilation temperature. Background technique [0002] Nowadays, in my country's steel production process, iron ore sintering is an important process to provide ironmaking raw materials with excellent metallurgical properties for blast furnaces. With the pursuit of blast furnace product quality and corporate economic benefits, iron and steel enterprises need to expand the source of raw materials to reduce production costs. However, the performance of iron ore powder from different sources is very different, and it needs to be used in a reasonable combination to meet the impact of blast furnace production on sintering. mine requirements. If a sintering cup is used to simulate the sintering process, the workload will be large and the experiment period will be long. The rational use of different iron or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/60G01N3/18
CPCG01N3/18G01N3/60G01N2203/0019G01N2203/0226G01N2203/0694
Inventor 钱立新王欢龙红明春铁军李家新余正伟王平孟庆民狄瞻霞魏汝飞李杰民王毅璠刘在春
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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