Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (1)

Search Parameters:
Keywords = CH4/coal dust explosion

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
18 pages, 5119 KiB  
Article
Study on the Inhibitory Effect and Mechanism of Modified Ultrafine ABC Powder on CH4/Coal Dust Coexistence Explosions
by Youwei Guo, Pengjiang Deng, Bingbing Zhang, Xiancong Liu, Yansong Zhang and Xiangrui Wei
Processes 2025, 13(3), 858; https://doi.org/10.3390/pr13030858 - 14 Mar 2025
Viewed by 645
Abstract
This study investigated the inhibitory effect and mechanism of modified ultrafine ABC powder on the explosion of a methane (CH4)/coal dust mixed system. Through experiments, it was found that the addition of ABC powder significantly weakened the deflagration characteristics of the [...] Read more.
This study investigated the inhibitory effect and mechanism of modified ultrafine ABC powder on the explosion of a methane (CH4)/coal dust mixed system. Through experiments, it was found that the addition of ABC powder significantly weakened the deflagration characteristics of the CH4/coal dust mixture system. During decomposition, heat was absorbed to generate ammonia and phosphoric acid. Inert gases such as CO2 and water vapor produced during decomposition could dilute the oxygen concentration. Phosphate ions produced during the decomposition of ammonium phosphate would bind with free radicals during combustion, reducing their reactivity. The explosion reaction was suppressed through a dual mechanism of physical cooling and chemical consumption of free radicals. The experimental results showed that the weight loss rate of modified ABC powder was 49% at 800 °C, while the weight loss rate of unmodified ABC powder was 78%. The modified ABC powder had better thermal stability and could absorb more heat at high temperatures, further suppressing explosive reactions. This study provides a new modification scheme for explosion suppressants for coal mine safety, which has important theoretical and practical application value. Full article
(This article belongs to the Section Particle Processes)
Show Figures

Figure 1

Back to TopTop