Low-emission hot-in-place asphalt recycling equipment train system

A low-emission hot-in-place asphalt recycling equipment train system, wherein at least three heating units, a milling unit, a centralized hot mix heating unit, a mixing unit, and compatible paving and compacting units are included;

• the heating unit comprises a heating body, with a heating console, a fuel tank, a hot air blast stove and a fan installed on the heating body and a heating system arranged at the bottom of the heating body;
• the hot blast stove comprises an inner shell and an outer shell that are mutually inlaid;
• inside the inner shell is a combustion chamber, and a degradation chamber is formed between the inner shell and the outer shell;
• a burner in the hot blast stove extends into the combustion chamber;
• an air supply port of the combustion chamber is connected to one end of a bellows of the heating system, an air inlet of the fan of the heating unit is connected to the other end of the bellows, the air outlet of the fan of the heating unit is connected to the degradation chamber, and the heating console is connected to the hot blast stove and the fan of the heating unit through a circuit;
• the milling unit comprises a milling body, with a hot mix heating console, a fuel tank, a burner and a fan installed on the hot mix heating body and a bellows and a milling mechanism arranged at the bottom of the hot mix heating body;
• the milling mechanism comprises two rows of milling bit tools respectively located at a front and a back of the milling mechanism, with a fume collecting hood and a fume extractor installed above the milling bit tools;
• the centralized hot mix heating unit comprises a hot mix heating body, with a hot mix heating console, a new material feeding hopper, a fuel tank, a hot blast stove and a fan installed on the hot mix heating body and an upender arranged at the bottom of the hot mix heating body;
• a hot mix heating chamber is in the centralized hot mix heating unit, with its top extending into the burner and its bottom connected to one end of the upender;
• the air inlet of the fan installed on the hot mix heating unit is connected to the other end of the upender, and the air outlet of the fan installed on the hot mix heating unit is connected to the hot mix heating chamber;
• the mixing unit comprises a mixing body, with a new material feeding hopper, a heater, a lifting mechanism, a weighing bin and a mixer installed on the mixing body;
• the inlet of the lifting mechanism is connected to the heat preservation device, the feeding end is connected to the weighing bin, and the lower part of the weighing bin is connected to the mixer.