System to prevent spontaneous combustion in coal shed

• Main Authors: LEE WON JI, SON IN HO, KIM CHI HWAN, JEONG GYU YANG, EOM CHANG SUP, LEE SEUNG HWAN, CHANG HWAN LIM
• Format: Patent
• Language: English; Korean
• Published: 15.07.2019
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BLASTING; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; NOZZLES; PACKING; PERFORMING OPERATIONS; PIPE-LINE SYSTEMS; PIPE-LINES; PNEUMATIC TUBE CONVEYORS; SHOP CONVEYOR SYSTEMS; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; STORING; STORING OF DISTRIBUTING GASES OR LIQUIDS; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING; WEAPONS

The present invention discloses a system for preventing spontaneous combustion in a coal yard indoors. The disclosed system for preventing spontaneous combustion in a coal yard indoors includes: an indoor coal yard on which stacks of coal is loaded; an inert gas spraying device spraying inert gas into an opening of the stacks of the coal from a floor of the indoor coal yard and replacing air of the stacks of the coal with the inert gas. The present invention installs a spraying device for nitrogen gas (N2) which is the inert gas in the indoor coal yard, supplied the inert gas with a specific cycle, and suppress inner and surface temperature increases of the coal, thereby being possible to prevent spontaneous combustion by the temperature increase while moisture and oil components in the coal react to oxygen of the air. 본 발명은 옥내 저탄장 자연발화 방지시스템을 개시한다. 개시된 옥내 저탄장 자연발화 방지시스템은 석탄더미가 적재되는 옥내저탄장과, 옥내저탄장의 바닥에서 석탄더미의 공극으로 비활성가스를 분사하여 석탄더미의 공기를 비활성 가스로 치환하는 비활성 가스 분사장치를 포함하므로, 옥내저탄장에 비활성 가스인 질소가스(N2) 분사장치를 설치하고, 특정 주기로 비활성가스를 공급하여 저탄의 내부 및 표면 온도상승을 억제함으로써, 저탄의 수분 및 오일 성분이 공기 중의 산소와 반응하면서 온도상승으로 인한 자연발화를 방지할 수 있다.