Foam concrete and preparation system and preparation method thereof

The invention relates to foam concrete and a preparation system and a preparation method thereof. The foam concrete is prepared from the following components in parts by weight: 10 parts of cement, 8parts of an aggregate, 4 parts of graphite powder, 1 part of a fortifier, 1 part of a foamer, 2 parts of an additive and 1 part of carbon fibers. The preparation method comprises the following steps of 1, putting a foam concrete raw material and water to be stirred in a semicircular box; 2, starting two scraper driving parts to drive two scraper assemblies to rotate, and driving, by the two scraper assemblies, a stirring plate assembly to rotate in a reciprocating to stir; 3, after stirring, starting a height adjusting part to drive the stirring plate assembly, the scraper assemblies and the scraper driving parts to raise to be separated from the semicircular box; 4, starting the two scraper driving parts to drive the two scraper assemblies to move outward to scrape concrete left on the stirring plate assembly to