COMPUTER CONTROLLED MEASUREMENT OF SPONTANEOUS COMBUSTION IN THE COAL STOCKPILES -OF WESTERN LIGNITE CORPORATION (WLC)

GARP LiNYiTLERi (GLi) iSLETMESiNiN KÖMÜR STOKLARININ KENDiLiĞiNDEN YANMASININ BiLGiSAYAR KONTROLLU OLARAK ÖLÇÜLMESİ

Abstract

Abstract. Spontaneous combustion is inevitable in case the coal meets suitableenvironmental conditions. Therefore, in the measurement system with computer, itis aimed to take the temperature changes automatically occurring in the stockpiles.In order to realise this scope, a total of 20 heat sensors were located inside the pilewhich is excess of produced coal in WLC. The signals obtained from these sensorsare changed into electrical signals. After processing these signals with necessaryfiltering, then temperature data are taken into the computing media by theutilisation of analogue - digital transforming unit and recorded in a data log.Hereafter, the graphs formed from these time - temperature data are presented to the usage of mine management.

Özet

Kornurler uygun ~evre kosullanrn bulduklan zaman, kendiliginden yanma olaytkacmrlmazdir. Bu nedenle, bilgisayarli oleum sisteminde, yigm icerisindeolusan sicakhklann bilgisayar yardrrruyla otornatik olarak olculmesiamaclanrrusnr. Bu amacla, 20 adet sicakhk sensorunun, kornur yiguuicerisinde belirtilen noktalarda algiladigr sicakhklann elektrik sinyalinedonusturulmesi ve bu elektriksel sinyallerin gerekli filtreleme ve yukseltrneislemleri yapildiktan sonra, analog - dijital donusturme unitesi ku IIan IIarak,bilgisayar ortarruna almmasi ve bu bilgilerin istenen zaman arahklanyla birveri tabanma kaydedilrnesi saglanrrusnr. Daha sonra bu zaman-sicakhkverilerinin grafikleri cikanlrrus ve kornur ocagi yonetiminin kullarnrrunasunulmustur,