Just want the ore from your scrap and nothing else? Well I have you covered, this tileable blueprint will pull it out and deal with everything else :).
Little bit of logic to make sure it doesn't get stuck. Other than that, 2 of these will pretty much saturate a full green belt of unstacked scrap.
Small amount of space between the 2 recycler sets is deliberate to allow pulling specific items out if you want them, for example ice for rocket fuel/power.