Coal spontaneous combustion characteristic testing device under thermal radiation condition

By designing a coal self-ignition characteristic test device under thermal radiation conditions including thermal resistance and temperature recorder, the problem that the existing technology cannot accurately reflect the overall self-ignition characteristics of coal samples is solved, real-time monitoring of temperature changes in various areas of coal samples and research on the self-ignition characteristics under thermal radiation conditions is achieved.

CN222636105UActive Publication Date: 2025-03-18XIAN UNIV OF SCI & TECH +1
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Patent Information

Application Number
CN202421060861.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-15
Publication Date
2025-03-18
Estimated Expiration
2034-05-15

AI Technical Summary

Technical Problem

The existing devices that study the self-ignition characteristics of coal under thermal radiation conditions can only study the surface temperature of the coal sample and cannot accurately reflect the self-ignition characteristics of the coal sample under thermal radiation conditions.

Method used

A test device for self-ignition characteristics of coal under thermal radiation conditions was designed, including a base plate, a top plate, a thermal radiation source, a guide rail assembly, a mobile platform, a pallet, a thermal resistance, a temperature recorder, a radiant bolometer and a data acquisition control mechanism. At least three thermal resistors are inserted from the top surface to the bottom surface of the coal sample and connected to the temperature recorder to obtain the temperature changes in each area of ​​the coal sample in real time.

Benefits of technology

It can truly simulate the spontaneous combustion characteristics of coal combustion under thermal radiation conditions under mines. The research data is accurate and reliable, and accurately reflect the spontaneous combustion characteristics of the coal sample as a whole under thermal radiation conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222636105U_ABST
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Abstract

The utility model discloses a coal spontaneous combustion characteristic testing device under a thermal radiation condition, and belongs to the field of mine fire thermal radiation testing. The test device comprises at least two groups of guide rail assemblies, and the at least two groups of guide rail assemblies are arranged in an annular array; the top plate and the bottom plate are arranged at the top end and the bottom end of the guide rail assembly respectively. The heat radiation source is hung on the top plate and is connected with the radiation heat flow meter; the moving platform is slidably connected to the at least two guide rail assemblies. The tray is arranged on the movable platform; the coal sample is arranged on the tray; the number of the thermal resistors is at least three, and the at least three thermal resistors are sequentially inserted from the top surface to the bottom surface of the coal sample; the at least three thermal resistors are electrically connected with the temperature recorder; and the temperature recorder and the radiation heat flow meter are connected with the data acquisition control mechanism. According to the application, the temperature change condition of each area from the top surface to the bottom surface of the coal sample can be obtained in real time according to requirements, so that the spontaneous combustion characteristic of the whole coal sample under the thermal radiation condition can be accurately reflected.
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