Amplification method for metallurgical process

Patent metadata

Field	Value
Publication number	US-2022019719-A1
Application number	US-201817298497-A
Country	US
Kind code	A1
Filing date	Dec 10, 2018
Priority date	Dec 6, 2018
Publication date	Jan 20, 2022
Grant date	—

Abstract

An amplification method for a metallurgical process includes the following steps: determining a general rate equation by a metallurgical macrokinetics research method, and determining the most critical technology steps which affect a reaction rate to obtain reaction characteristics; determining physical field characteristics of a reactor to optimize the reactor by a physical simulation method and/or a numerical simulation method; according to the reaction characteristics and the physical field characteristics of the reactor, determining a single factor of a reaction period; according to an affection relationship in a metallurgical reaction process, determining a single factor amplification number; and solving pilot-scale test results by a hot state experiment or a simulation means, verifying an amplification criterion, obtaining an amplification scheme, performing industrialization, and completing metallurgical process amplification.

First claim

What is claimed is:

1 . An amplification method for a metallurgical process, comprising the following steps:
step I, determining a relationship between a metallurgical reaction process and a pressure, a concentration, and a temperature by a metallurgical macrokinetics research method, wherein a relationship formula is: R=f(P, T, C, X), R represents a reaction rate of the metallurgical reaction process, f represents a functional relationship, P represents the pressure, T represents the temperature, C represents the concentration, and X represents other affecting factors, and determining the most critical technology steps which affect the reaction rate in the metallurgical reaction process to obtain reaction characteristics; step II, determining physical field characteristics of a reactor to optimize the reactor by a physical simulation method and/or a numerical simulation method, and determining the reactor and a structure thereof suitable for metallurgical reaction characteristics; step III, according to the reaction characteristics determined in the step I and the physical field characteristics of the reactor determined in the step II, determining a single factor of a reaction period, wherein the single factor is a decisive factor existing in a specific metallurgical reaction period; step IV, according to the determined single factor, and an affecting relationship of the single factor on the metallurgical reaction process, determining a single factor amplification number; and step V, according to an amplification criterion that the single factor amplification number remains unchanged in an amplification process, solving pilot-scale test results by a hot state experiment or a simulation means, verifying the amplification criterion, obtaining an amplification scheme, performing industrialization, and completing metallurgical process amplification.

2 . The amplification method according to claim 1 , wherein in the step I, the determined relationship between the metallurgical reaction process and the temperature, the pressure, the concentration or other factors is irrelevant to the structure of the reactor, and is only related to a certain key factor in a specific time period.

3 . The amplification method according to claim 1 , wherein in the step I, in the metallurgical macrokinetics research method, one method or a combination of several methods including differential thermal analysis, thermogravimetric analysis, differential scanning calorimetry, particle concentration measurement and component analysis can be selected to obtain a general rate equation, namely R=f(P, T, C, X), and a reaction control step is determined.

4 . The amplification method according to claim 1 , wherein in the step II, physical fields of the reactor comprise pressure field, flow field, concentration field, magnetic field, stirring physical field and other physical fields affecting the metallurgical reaction process.

5 . The amplification method according to claim 1 , wherein in the step II, the reactor and the structure thereof suitable for metallurgical reaction characteristics are determined, and the physical field characteristics of the reactor and the structure thereof are required to correspond to requirements of metallurgical reaction rules in the metallurgical process amplification.

6 . The amplification method according to claim 1 , wherein in the step II, the physical simulation method and the numerical simulation method are used to determine the physical field characteristics of the reactor; wherein the physical simulation method is particle velocimetry, high-speed photography, Doppler and infrared imaging, and a water model experiment is obtained; and wherein the numerical simulation method is detailed simulation obtained by ANSYS/FLUENT simulation.

7 . The amplification method according to claim 1 , wherein in the step II, according to the physical simulation method and the numerical simulation method, a material transmission rule is obtained, and a phenomenological equation is determined according to phenomenology.

8 . The amplification method according to claim 1 , wherein in the step III, the single factor is a decisive factor which needs to exist in a specific metallurgical reaction period.

9 . The amplification method according to claim 1 , wherein in the step IV, determination of the single factor amplification number is a single factor amplification criterion based on the single factor which can be established in a specific period for metallurgical process amplification.

10 . The amplification method according to claim 1 , wherein determination of the reactor and the structure thereof suitable for metallurgical reaction characteristics and determination of the single factor are established on the basis of a metallurgical process amplification research platform coupled with the metallurgical macrokinetics research method, the physical simulation method, the numerical simulation method and the hot state experiment for verification, and the metallurgical process amplification can be accurately completed according to the steps of the amplification method for the metallurgical process.

Assignees

• Univ Northeastern

Inventors

• Zhang Tingan
• Dou Zhihe
• Liu Yan
• Zhang Zimu
• Zhao Qiuyue
• Lv Guozhi
• He Jicheng

Classifications

• B01J19/087

  employing electric or magnetic energy · CPC title

• B01J19/0066

  Stirrers (mixing per se B01F) · CPC title

• B01J8/007

  by sedimentation · CPC title

• G06F30/23 Primary

  using finite element methods [FEM] or finite difference methods [FDM] · CPC title

• G06F2119/14

  Force analysis or force optimisation, e.g. static or dynamic forces · CPC title