Die Entwickelung Des Niederrheinisch -Westfälischen Steinkohlen-Bergbaues in Der Zweiten Hälfte Des 19. Jahrhunderts: VII. Berieselung, Grubenbrand, R
Imported Edition - Ships in 12-14 Days
Free Shipping in India on orders above Rs. 500
Imported Edition - Ships in 12-14 Days
Free Shipping in India on orders above Rs. 500
Der schädliche Einfluss des feinen Kohlenstaubes bei der Entstehung und Verbreitung von Schlagwetterexplosionen in Steinkohlenbergwerken ist zuerst vor etwa 50 Jahren von englischen und französischen Ingenieuren mit Sicherheit konstatiert worden. Ende der 70er Jahre fanden so- dann namentlich in Englalld eingehende Versuche über die Entzündungs- fähigkeit des Kohlenstaubes statt, durch deren Resultate die Preussische Schlagwetterkommission hauptsächlich veranlasst wurde, sich ebenfalls mit dieser Frage zu beschäftigen. Durch zahlreiche Versuche in der Versuchs- strecke zu Neunkirchen, bei denen auch verschiedene Staubsorten von westfälischen Gruben zur Verwendung kamen, wurde die Gefährlichkeit des Kohlenstaubes bei Anwesenheit von Grubengas vollauf bestätigt und festgestellt, dass in Schlagwettergruben selbst an solchen Betriebspunkten, die bei der Untersuchung mit der Sicherheitslampe als wetterfrei befunden werden, in der Regel noch hinlängliche Mengen von Gas vorhanden sind, um in Verbindung mit einem feinen und leicht zersetzbaren Kohlen- staub beim Zusammentreffen ungünstiger Umstände unheilvolle Explosionen zu veranlassen. Ferner ergab sich, dass ausblasende Sprengschüsse den Staub gewisser Fettkohlensorten, z. B. denjenigen der Zechen Pluto und Neu-Iserlohn, auch ohne Mitwirkung schlagender \Vetter zur Explosion bringen können. *) Wie schon im Jahre 1875 von Vital betont wurde, sind als die gefährlichsten Staubsorten diejenigen anzusehen, welche entsprechende physikalische Eigenschaften besitzen, d. h. welche fein, trocken und imstande sind, die eingeschlossenen Gase leicht abzugeben. Denn das Zustandekommen einer Kohlenstaubexplosion ist so zu erklären, dass durch die bei einer Schlagwetterexplosion oder durch einen Loch- *) Anlagen zum Hauptbericht der Schlagwetterkommission, Bd. IV. 1* Berieselung.
• Author(s): Clear | James • Publisher: Penguin • Publisher Imprint: Penguin Random House • Subject: General Books
• Author(s): Jeff Kinney • Publisher: Penguin Random House Children's UK • Publisher Imprint: Penguin Random House Children's UK • BISAC: Comics & Graphic Novels - Humorous
• Author(s): Ichiro Kishimi • Publisher: GROVE ATLANTIC • Publisher Imprint: Allen & Unwin • BISAC: Personal Growth - SuccessIchiro Kishimi lives in Kyoto. He writes, lectures and teaches in psychiatric clinics as a certified counsellor and c...
View full details• Author(s): Chetan Bhagat • Publisher: HarperCollins Publishers India • Publisher Imprint: HarperCollins Publishers India • BISAC: GeneralFrom India's top-selling writer Chetan Bhagat comes a powerful new love story that will make you laugh, cry...
View full details• Author(s): Brianna Wiest • Publisher: Manjul Publishing • Publisher Imprint: Amaryllis • BISAC: Body Mind And SpiritThis is a book about self-sabotage. Why we do it, when we do it, and how to stop doing it—for good. Coexisting but conflicting n...
View full details• Author(s): Morgan Housel • Publisher: Pan Macmillan • Publisher Imprint: Pan Macmillan • BISAC: Finance - Wealth ManagementA third book from the International bestselling author of The Psychology of Money and Same as Ever, lessons on harnessing...
View full details• Author(s): Arundhati Roy• Publisher: PRH INDIA LOCAL PRINT• Publisher Imprint: Penguin Hamish Hamilton• BISAC: Literary FiguresArundhati Roy’s first work of memoir, this is a soaring account, both intimate and inspiring, of how the author became...
View full details• Author(s): Acharya Prashant • Publisher: HarperCollins Publishers India • Publisher Imprint: HarperCollins Publishers India • BISAC: GeneralIn a world where vagueness is mistaken for depth and obscurity passes for wisdom, Truth without Apology ...
View full details• Author(s): Sudha Murthy • Publisher: India Puffin • Publisher Imprint: India Puffin • BISAC: Short StoriesWho can resist a good story, especially when it's being told by Grandma? From her bag emerges tales of kings and cheats, monkeys and mic...
View full details• Author(s): Satoshi Yagisawa • Publisher: Bonnier Books Ltd • Publisher Imprint: Bonnier Books Ltd
• Author(s): Newport, Cal • Publisher: Little, Brown Book Group • Publisher Imprint: Piatkus
• Author(s): Shrijeet Shandilya • Publisher: Ebury Press • Publisher Imprint: Ebury Press • BISAC: Romance - GeneralIn the electric haze of college life, three friends are bound by laughter, late-night talks and unspoken promises. But when two of...
View full details• Author(s): Dan Brown • Publisher: Transworld Publishers Ltd • Publisher Imprint: Transworld Publishers Ltd • BISAC: Thrillers - EspionageDan Brown is the bestselling author of Digital Fortress, Deception Point, Angels and Demons, The Da Vinci C...
View full details• Author(s): Sudha Murty • Publisher: India Puffin • Publisher Imprint: India Puffin • BISAC: Action & Adventure - General
Rich Dad Poor Dad: What the Rich Teach Their Kids about Money That the Poor and Middle Class Do Not!
• Publisher: Penguin • Publisher Imprint: Penguin Random House • Subject: General Books • BISAC: Personal Finance - GeneralApril of 2022 marks a 25-year milestone for the personal finance classic Rich Dad Poor Dad that still ranks as the #1 Pers...
View full details• Author(s): Dale Carnegie | Napoleon Hill • Publisher: Fingerprint • Publisher Imprint: Fingerprint • Subject: General Books
• Author(s): Freida Mcfadden • Publisher: Penguin Select Print • Publisher Imprint: Penguin Select Publishing"Multi-Million Copy Bestselling Series •Now Being Made Into a Major Motion Picture Starring Sydney Sweeney and Amanda Seyfried #1 New Yor...
View full details• Author(s): Wonder House Books • Publisher: Wonder House Books • Publisher Imprint: Wonder House Books • BISAC: Comics & Graphic Novels - Fairy Tales, Folklore, Legends & MTimeless Wisdom, Talking Animals & Life Lessons for Young Min...
View full details• Author(s): Viktor E. Frankl • Publisher: Random House • Publisher Imprint: Random Hou • Subject: Medical, Nursing and Health Sciences
• Author(s): Madhavi Bharadwaj • Publisher: PRH India • Publisher Imprint: Penguin Ebury Press • BISAC: Parenting - MotherhoodWelcome to the wild, messy, wonderful world of parenting--where the nights are long, the diapers are explosive, and unso...
View full details• Author(s): Vir Das • Publisher: HarperCollins Publishers India • Publisher Imprint: HarperCollins Publishers India • BISAC: Entertainment & Performing ArtsComedian and actor Vir Das is beloved (by some, tolerated by others, blocked by a few...
View full details• Author(s): Eric Carle • Publisher: Penguin Books, Limited (UK) • Publisher Imprint: Penguin Books, Limited (UK) • BISAC: Animals - Butterflies, Moths & CaterpillarsEric Carle's The Very Hungry Caterpillar is a perennial favourite with child...
View full details• Author(s): Prajakta Koli • Publisher: Harper Fiction India • Publisher Imprint: Harper Fiction India • BISAC: Romance - ContemporaryWinner of the Amazon India Popular Choice Debut Book 2025 Award. From one of India's most-loved creators comes s...
View full details