I live on a 7-acre alpaca farm (we are helpers on the ranch, but it is not OUR ranch per se). We just sheared last Monday--33 alpacas and a llama! It was quite a process. Man... that alpaca spit smells somethin' awful, doesn't it?
We can't really do anything with the llama's fleece/fiber. She mostly gets shorn along with everyone else for her own comfort in these hot California foothill summers.
We are new to all this and have been here less than 2 months, but I have learned a LOT. On shearing day, this one lady came from out of town and had these two big wooden frames with what looked like deer netting (but sturdier) underneath. She spread the frame out between two saw horses, and then she "skirted" the fleece after it was shorn, taking extra care with the show blankets first. As she went through and gently shook the blanket/fleece over the frame, all the grass, dirt, and other detritus that had been caught up in the fiber fell to newspapers that had been spread out on the ground below. Part of the process also included pulling out some hairs with a special name (I can't remember--I'm very new to all this), but they're like straight hairs that are sorta like "baby hairs", and they stick up and cause issues with the machines that process the fiber when it's sent to be processed. She takes her time and does a good job, and when she packs it back up after skirting it, it's ready to go be processed.
Some local alpaca folks have spinning wheels and spin at least some of their own fiber into yarn. Neither my landlady nor myself has the patience to do that long-term, but I might like to try it once or twice. Never know--I might find out I enjoy it. We certainly have enough fiber sitting around here... you would not BELIEVE...