Small simulation device for testing spontaneous combustion period of coal

Abstract

The invention discloses a small simulation device for testing a spontaneous combustion period of coal. The device comprises a spontaneous combustion reaction furnace, a sand bath device, a temperature acquisition system, a temperature compensation system, a gas supply system and a gas analysis system, wherein the spontaneous combustion reaction furnace is provided with a dual-layer coal oxidation furnace nested structure for the first time, and the problem of heat loss of the existing coal spontaneous combustion simulation device is actually solved; the sand bath device has wider temperature control range and higher temperature control accuracy, realizes uniform heat conduction, is suitable for high-temperature work and avoids potential safety hazards; and as another temperature protection structure outside the dual-layer coal oxidation furnace nested structure, the sand bath device provides good temperature protection to the entire simulation process of spontaneous combustion of coal. The device disclosed by the invention works stably, has high simulation similarity, can perfectly simulate the spontaneous combustion process of coal, and can be used for testing the shortest spontaneous combustion period of coal as well as judging and predicting the condition, place and time of the spontaneous combustion of coal under actual conditions and the like.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes how it can prevent damage caused during high temperatures when burning raw materials like coals or bituminous sands into energy production processes such as power generation plants. It involves controlling the temperature within the furnaces used to combust those fuels while ensuring their quality meets specifications. By monitoring both the interior and exterior surfaces of each furnace separately, any changes made overall ensure accurate results.

Problems solved by technology

This patented technical problem addressed in previous researches relates to improving the accuracy of simulating coal burning during experiments while minimizing any damage caused due to high temperatures or insufficient cooling.

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