Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method used for detecting assimilation temperature based on iron ore powder temperature-electric signal curve

An electrical signal, iron ore powder technology, applied in the field of iron ore powder sintering characteristic detection, can solve problems such as large influence of subjective factors and inaccurate detection results, and achieve the effect of improving accuracy

Active Publication Date: 2018-05-08
ANHUI UNIVERSITY OF TECHNOLOGY
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the shortcomings of the prior art that the detection of iron ore powder assimilation temperature is greatly influenced by human subjective factors and the detection results are inaccurate, and provide a method for detecting the assimilation temperature based on the iron ore powder temperature-electrical signal curve, In the process of heating up, detect the electrical signal and temperature changes of the iron ore powder sample, and draw the temperature-electrical signal curve of the iron ore powder sample, and find the corresponding temperature value according to the sudden change of the electrical signal of the curve, and detect the iron ore powder assimilation temperature, which can improve the accuracy of assimilation temperature detection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method used for detecting assimilation temperature based on iron ore powder temperature-electric signal curve
  • Method used for detecting assimilation temperature based on iron ore powder temperature-electric signal curve
  • Method used for detecting assimilation temperature based on iron ore powder temperature-electric signal curve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method of detecting the assimilation temperature based on the iron ore powder temperature-electrical signal curve in this embodiment detects the electrical signal and temperature changes of the iron ore powder sample 400 during the heating process, and determines the relationship between the electrical signal and the temperature. And draw the temperature-electric signal curve of iron ore powder sample 400, find the corresponding temperature value according to the sudden change of the electric signal of the curve, and detect the assimilation temperature of iron ore powder, especially creatively propose the use of temperature-electric signal curve to judge the iron ore The assimilation temperature of the mineral powder sample 400 greatly improves the detection efficiency and detection accuracy. Specific steps are as follows:

[0046] Step 1. Equipment assembly

[0047] A. Weigh 2g of CaO powder with a purity of 98.0% with a balance, and press it into a convex mold unde...

Embodiment 2

[0080] like Figure 4 As shown, the basic content of this embodiment is the same as that of Embodiment 1, except that the first electrode 221 and the second electrode 222 are arranged in parallel, and the horizontal distance between the first electrode 221 and the second electrode 222 is d, where d≤ R / 2, the present embodiment takes d=R / 2, and R is the diameter of the accumulation surface of the iron ore powder sample 400 on the calcium oxide tablet 130 . The first electrode 221 and the second electrode 222 run through the calcium oxide tablet 130, thereby improving the accuracy of detection, so that as long as the iron ore powder is assimilated in one place, the change of the electrical signal can be detected in time, thereby improving the detection accuracy. accuracy. In this embodiment, the thickness between the top of the electrode hole 131 and the upper surface of the calcium oxide sheet 130 is δ, and δ is 0.2-2mm. In this embodiment, δ=0.5mm.

Embodiment 3

[0082] like Figure 7 As shown, the basic content of this embodiment is the same as that of Embodiment 1, except that the first electrode 221 of this embodiment is placed in the calcium oxide pellet 130 , and the second electrode 222 is placed in the iron ore powder sample 400 . The detection unit 200 is located on the upper part of the iron ore powder sample 400, and the detection unit 200 is located directly above the first electrode 221, and the temperature measurement end 211 of the detection unit 200 is close to the iron ore powder sample 400, so that the temperature measurement end 211 can promptly and quickly detect the temperature when the assimilation reaction of iron ore powder occurs, and improve the accuracy of detection.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method used for detecting assimilation temperature based on an iron ore powder temperature-electric signal curve, and belongs to the detection field of iron ore powder sintering characteristics. According to the method, an iron ore powder sample is placed on a calcium oxide tablet of a detection device, and is arranged between a first electrode and a second electrode in series connection; in temperature increasing process, a detection unit of the detection device is used for detecting change situations of the electric signals of the iron ore powder sample with the time, and the change situations of the temperature with the time, obtaining the corresponding relationship of the electric signals with the temperature based on time medium, and drawing the temperature-electric signal curve of the iron ore powder sample; the temperature value of a corresponding coordinate axis is determined based on the electric signals and the electric signal abrupt change in the temperature curve, and the iron ore powder assimilation temperature is obtained via detection. According to the method, deformation such as wetting angle is adopted for determination of the iron ore powder assimilation temperature, so that determination accuracy of iron ore powder assimilation temperature is increased, and detection efficiency is increased.

Description

technical field [0001] The invention relates to the field of detection of sintering characteristics of iron ore powder, in particular to a method for detecting assimilation temperature based on iron ore powder temperature-electrical signal curve. Background technique [0002] The iron and steel industry is an important pillar industry for economic and social development and occupies an important position in the national economy. Among them, iron ore powder sintering is an indispensable process in modern large-scale iron and steel complexes. It is a method of heating powdery materials at high temperatures under the condition of incomplete melting to sinter into blocks. In the iron charge, the proportion of sintered ore reaches more than 80%. [0003] With the pursuit of the quality of blast furnace products and the economic benefits of enterprises, iron and steel enterprises need to expand the source of raw materials to reduce production costs. However, there are great diff...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/12
CPCG01N25/12
Inventor 龙红明王欢钱立新余正伟春铁军李家新王平孟庆民狄瞻霞魏汝飞王凯祥王毅璠李宁
Owner ANHUI UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com