Go to your campaigns screen and find the desired campaign with the non-openers.
Click the "View report" button
Navigate to the "Overview" tab
Click the "Create list" button. The resulting popup will give you the option to filter non-openers, non-clickers, openers or clickers:
In here you can also either choose an existing list or create a new one for these non-opener contacts.
Go to your Contacts screen, find the specified (or newly generated) list and select icon of an arrow facing right on the side of the list name in order to create a campaign using this list:
Send your campaign!