how to apply free temporary stay permit

sorry for ask many question to u, may i ask how to apply free temporary stay permit at shanghai airport? will it takes long time? coz after arrival, i just have about 2 hrs only to take my luggage and pass the immigration then fo check in for next destination, i don't have any idea, whether enough time to do all that, since i know shanghai airport is also one of the busiest terminal,thanks for help.