The invention provides a method and a
machine for calcining materials, comprising feeding equipment, a preheating chamber, a calcining chamber, a
cooling chamber, discharging equipment and an
exhaust emission system, wherein the calcining chamber is provided with 1-10 rows of
peripheral burners, and the preheating chamber and the
cooling chamber are transversely arranged. The preheating chamber and the
cooling chamber are respectively divided into a high-temperature preheating chamber and a low-temperature preheating chamber as well as a high-temperature cooling chamber and a low-temperature cooling chamber by partition walls. The materials of the preheating chamber and the cooling chamber transversely move under the push of a pusher; higher-temperature air after the high-temperature cooling chamber cools products is used as
combustion air; higher-temperature air after the low-temperature cooling chamber cools the products is used for preheating limestone materials in the preheating chamber. In the invention,
heat energy is well utilized to save heat-exchange equipment and reduce equipment investments and operating costs, which reduces the
discharge of
greenhouse gases and is beneficial to
environmental protection. The machinery is a detachable
assembly, and all component equipment is manufactured separately and is assembled on site, thereby facilitating transportation, installation, overhauling and replacement and being beneficial to serialized production of calcining machinery.