Spontaneous combustion ferrous sulfide generation and oxidation experimental system and method

Abstract

The invention provides a spontaneous combustion ferrous sulfide generation and oxidation experimental system and method. The system comprises a ferrous sulfide generation and oxidation reaction in-situ observation chamber arranged on a XRD diffractor; a gas supply subsystem, an environment temperature control subsystem, a temperature and gas parameter monitoring subsystem and a tail gas recyclingsubsystem are connected with the ferrous sulfide generation and oxidation reaction in-situ observation chamber; a parameter setting and control subsystem is electrically connected with each of the gassupply subsystem, the environment temperature control subsystem, the temperature and gas parameter monitoring subsystem and the tail gas recycling subsystem, thereby controlling each subsystem to accomplish the ferrous sulfide generation and oxidation reaction, monitoring and recording the related parameters for ferrous sulfide generation and oxidation reaction. The experimental system realizes the ferrous sulfide generation under a controllable condition and ferrous sulfide oxidation experiment under different atmospheres, initial temperatures and gas flow and like conditions, the sample internal structure real change in the ferrous sulfide generation and oxidation process can be better mastered, and the deep mechanism can be mastered.

Description

technical field [0001] The invention relates to the field of experimental equipment for ferrous sulfide research, in particular to an experimental system and method for generating and oxidizing spontaneous combustion active ferrous sulfide. Background technique [0002] Oxidation and self-heating of iron-sulfur compounds, especially ferrous sulfide, is the main cause of spontaneous combustion and fire accidents in petrochemical plants and stacks of sulfur-containing ores. Although scholars at home and abroad have studied the spontaneous combustion and ignition characteristics of ferrous sulfide, most of them are researching ferrous sulfide sold on the market or ferrous sulfide that has been exposed to oxygen (partially oxidized), mainly focusing on the In terms of the spontaneous combustion characteristics of ferrous sulfide oxidation, there are few studies on ferrous sulfide that has not been exposed to oxygen, and there are few reports on the changes in crystal structure a...

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Problems solved by technology

[0005] Based on the existing problems in the prior art, the purpose of the present invention is to provide a kind of spontaneous combustion active ferrous sulfide generation and oxidation experimental system and method, which can solve the problems of existing in-situ XRD devices and ferrous sulfide oxidation self-heating behavior research devices. To meet the problem of research on the self-heating characteristics of ferrous sulfide oxidation

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