So I had a half fleshed out thought for reducing noise... Correct me if I'm wrong but the noise is coming from the fans no? The sole purpose of the fans are to pull the heated air off the miner. I think you can remove them in this application. The dryer already has a system to pull the hot air into the drum, all you need to do is tap into it. Since you're already pulled the back off the dryer, you could just build a box and attach it directly over the hole. Take the case and the fans off the miner and stick it in the box. The existing system the dryer uses to pull hot air into the drum will simply pull it from the bare miner. You'd have a silent miner but it can only run while the dryer is running...