There is no shuttle bus from wenxi county to Sanmenxia. You have to take a bus to Yuncheng Central Station first, and then transfer to Sanmenxia. Wenxi's arrival in Yuncheng is 10 yuan. Yuncheng to Sanmenxia was originally 25 yuan, but now the price will be raised, and it will arrive in 40 yuan at 30.
It is really tight to catch the 9: 30 train. If not, you can arrive at Sanmenxia one day in advance or take a taxi, but the car rental fee may cost more than 200 yuan.