I need to travel from Tianjin Xingang port to Beijing.

I need to travel from Xingang port to Beijing. I have read many of your questions and answers but have not seen any mention of using the Jinbin Light Railway which appears to run from very close to the port through to Tianjin Station. From the map it would seem simple to get a taxi to the nearest station (what is the name of it ?)(about 3 miles) and take this train to Tianjin Station to get a fast train to Beijing.
This would save a large taxi fare to Tianjin - and for me, would be more interesting.
Is this as simple as it appears or have I missed something here ?
Please advise.