As of my experience you can submit multiple blogs a day but it's good to submit 3 to 4 post a day if you are new to blog posting. And then increase your blog posting. Bulk submission may go to spam with some of directory like hubpage.
Content quality is matter on your blog if you write 1 one post on your blog with quality then visitor automatically comes so focus on your content quality not on bulk post.
I see some blogs that have gibberish posts. Some of the material does not even read as though a human wrote it.
i write only 1 post per day and i dont get traffic from search engine too but some one must guide me to do it better
yep.No matter how many post you write for a day but how much quality content you post at your blog is matter.
I'm writing 5 original articles a week, but I spin all my articles and distribute them to drive more traffic.