Connect an streaming server to Spotify

[EplanetMarkets]

Hi experts

I have a question. 

We have a live internet radio. An audio studio, a broadcast software (Virtual DJ), an streaming server as a service (Airtime.pro) and a radio app. 
And now we want to connect our spotify account directly to our streaming server. I mean we want to have our radio on spotify. 
How should I do it? I did not see a setting for connect to a streaming server.

Thank you 
Mohammad