tamann, welcome to the forum. Couple of things: first, please add your location in your profile settings. A lot of information is region-specific, and you might also be able to connect with other forum members in your area. Second, you'll find that almost every question you can think of has been asked and answered already, sometimes many times over. Take some time to search the various categories, subcategories, and threads before asking a question; if you can't find an answer that way, at least you'll know more and will be able to ask more informed questions.
That said, a shop blower puts out too much air for most kinds of forging. If you have some way to regulate the airflow (a gate valve or even aiming the vac hose partially past your air intake), you'll have a lot more success. (This is me speaking as someone who used a shop vac to blast an anthracite forge for quite a while, so I'm speaking from experience!)