B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/32
B23B 51/00 (2006.01) B23B 51/04 (2006.01) B25H 1/00 (2006.01) B28D 1/04 (2006.01) B28D 1/14 (2006.01)
Patent
CA 1198914
Abstract of the Disclosure An apparatus for drilling vertical temperature measuring holes in the top brick of coke ovens includes a guide support vertically fixedly mounted on a horizontal frame on the top surface of a coke oven proper, and a guide pipe shaft connected at its upper end to a rotary drill, having a freely replaceable drilling bit attached to its lower end and including therein a cooling gaseous body passage is vertically movably mounted on the guide support in parallel thereto. In drilling operation, a first core bit with square chips is attached to the lower end of the guide pipe shaft and the top brick is first drilled to a depth of at least five times of diameter of the hole to be drilled while jetting a cooling gaseous body and cooling the core bit. Then, the bit is replaced with a second core bit with circular chips and the hole is drilled further down to near the desired depth while similarly cooling the bit and then the second bit is again replaced with a planer type drill bit with ventilation holes thus plaining the hole bottom while cooling the drill bit and thereby vertically drilling the high temperature brick without greatly damaging the inner wall of the drilled holes.
436764
Macrae & Co.
Nippon Kokan Kabushiki Kaisha
LandOfFree
Method for drilling coke oven top brick does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for drilling coke oven top brick, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for drilling coke oven top brick will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1193299