Asphalt concrete mixing equipment refers to equipment that dries, heats, screens, and measures sand and gravel, and adds an appropriate amount of filler (stone powder), and mixes it with hot asphalt liquid evenly according to a certain mixing ratio to form an asphalt mixture. The production process is automatically controlled by a computer; the mixing process is improved to reduce fuel consumption; efforts are made to eliminate waste gas and dust and other public hazards, and to strengthen environmental protection. Since the 1970s, the recycling of old asphalt mixtures and the development of corresponding production equipment have been generally emphasized.