Using a wide (Y-shaped) vegetable peeler, peel the carrots vertically in ribbons until you get to the point where you can’t peel anymore. Laying the carrot flat on a cutting board helps to get the most ribbon. Save any inner carrots for snacks or for another recipe (such as pickled carrots).
In a bowl, combine the carrot ribbons with the mint, parsley, scallions, and oranges. Sprinkle with a pinch of salt.
Make the vinaigrette: In a bowl, whisk together the lemon juice, maple syrup, preserved lemon, garlic, and shallot. Stream in the olive oil, whisking as you go. Stir in the chopped mint and season with the salt and pepper to taste. Or, add all of the ingredients to a jarred lid and shake vigorously until emulsified.
Drizzle the vinaigrette on top of the carrot salad and toss gently.