Auto closure process for Incident (SMIN) ?

Hi ITSM expert!   

We are using Incident Management (ZMIN ticket by copy of SMIN standard ticket), and a lot of our ticket remain in "Proposed Solution"  status.

Even if the requester should check the resolution or solution and confirm it .. he/she -most of the time- does not confirm technically the incident. They remain in the worklist indefinitely ...

Is there a way to confirm automatically  these ZMIN document ?

for example, after 10 days of "propose solution" status, a background process will close the Incident automatically ?

I tried the report CRM_SOCM_SERVICE_REPORT ..which works fine with Charm document, but seem not working with incident management.

Thanks!