With the development of mechanical technology, the current new brick making machine can efficiently use fly ash, slag, stone powder, desulfurization ash, slag, coal gangue, phosphogypsum, tailing sand and other new wall materials, such as autoclaved fly ash brick, autoclaved sand brick, aerated concrete products.On the one hand, the new wall material can effectively use fly ash, slag, and even industrial waste residue to carry out waste recycling.On the other hand, its environmental protection and energy saving, the new wall material has also been strongly supported and affirmed by the country.