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2008-01-07_REVISION - C1982056
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2008-01-07_REVISION - C1982056
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Entry Properties
Last modified
8/24/2016 3:20:42 PM
Creation date
5/6/2009 1:17:06 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
REVISION
Doc Date
1/7/2008
Doc Name
Email Regarding Emergency Shaft Heater Installation
From
Dan Hernandez
To
Janet Binns
Type & Sequence
MR227
Media Type
D
Archive
No
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Binns, Janet <br />From: Hernandez, Daniel <br />Sent: Monday, January 07, 2008 11:43 AM <br />To: Binns, Janet <br />Subject: FW: Twentymile Coal Company - Emergency Shaft Heater Installation <br />-----Original Message----- <br />From: Jerry Nettleton [mailto:JNettleton@peabodyenergy.comI <br />Sent: Friday, January 04, 2008 4:13 PM <br />To: Hernandez, Daniel <br />Cc: mberdine@peabodyenergy.com <br />Subject: Twentymile Coal Company - Emergency Shaft Heater Installation <br />Dan - <br />As a follow-up to my phone call this morning; <br />We are experiencing severe icing problems in the 6-Main North Air Intake Shaft that have <br />the potential to interfere with operation of the 6MN Emergency Escape Hoist. Given the <br />potential mine safety issue, we need to proceed quickly to address this problem. Our <br />current plan is to move two portable skid-mounted propane air heaters (15' long, 7' wide, <br />and 7.5' <br />high) onto the existing 6MN Shaft Pad (would be located adjacent to and immediately west <br />of the Escape Shaft Hoist-House (see MR07-218) approximately 50' from the shaft opening), <br />and connect them to a portable propane tank and the existing electrical lines, and to the <br />shaft opening with pre-fabricated vent tubing. <br />In order to address the immediate icing problems, the volume of ventilation air moving <br />down the shaft will be temporarily reduced by adjusting ventilation doors at the shaft <br />bottom, and the remaining air-flow warmed with the portable heaters to thaw the water-ring <br />and associated piping within the shaft collar and liner. TCC may make modifications to <br />the water-ring and piping to reduce future potential for freezing and icing. The <br />temporary heaters will remain in-place until the immediate icing problems are addressed <br />(projected at up to 45 days), then full air flow will be restored to determine if there <br />will be a continuing problem. If problems persist, the temporary heaters could remain in- <br />place for the remainder of the winter (up to 4 months). <br />All system components will be portable (heaters, propane tank, and connecting vent <br />tubing), so there is some question as to whether or not a revision to the permit is <br />needed. Please review and let me know your thoughts - <br />Best regards, <br />Jerry <br />------------- <br />E-mail Disclaimer: <br />The information contained in this e-mail, and in any accompanying documents, may <br />constitute confidential and/or legally privileged information. The information is <br />intended only for use by the designated recipient. If you are not the intended recipient <br />(or responsible for the delivery of the message to the intended recipient), you are hereby <br />notified that any dissemination, distribution, copying, or other use of, or taking of any <br />action in reliance on this e-mail is strictly prohibited. If you have received this email <br />communication in error, please notify the sender immediately and delete the message from <br />your system.
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