Rinse the soaked black beans. Cover with water, bring to a boil, and simmer until tender. Bring the stock to the boil and simmer with the ginger. Steam the seafood in a steamer over simmering stock (if you don't have a steamer, place the seafood into a foil envelope, add a swig of water or white wine, and bake in the oven at its highest temperature for 5 to 10 minutes or until the clams open up).
While your seafood is steaming, cook the noodles in boiling salted water until tender and drain. Divide the noodles between 4 deep broth bowls and scatter with the seafood, beans, herbs and chili. Check the seasoning of the broth and serve it from a teapot at the table. Finish with a squeeze of lime juice.