The LHC is indeed just another particle accelerator. The speeds that the scientists are hoping to achive are really quite high: .9999 x the speed of light when it's running flat out.
Any black holes that do form, if they form, will be so small and unstable that they will collapse after a few millionths of a second. In that time, they would start attracting matter, but 1/1000000 sec is too small a time for it to do harm.
Any black holes that do form, if they form, will be so small and unstable that they will collapse after a few millionths of a second. In that time, they would start attracting matter, but 1/1000000 sec is too small a time for it to do harm.