The waste heat recovery system of industrial boiler is a process of heating the feed water of the boiler by using the waste flue gas released by the traditional industrial boiler, and then raising the temperature of the feed water of the boiler, or using the waste flue gas discharged by the boiler. heating the combustion air of the boiler to increase the air supply temperature, and finally achieve the purpose of saving fuel consumption and improving economic benefits.

In the new dry process cement production process, rotary kiln and calciner are the two key equipment for cement material burning, and they are also the main sources of NOx generation. There are two main ways to solve the high NOx emission, one is through staged combustion and four-channel coal injection burner with low nitrogen efficiency in the furnace, and the other is flue gas treatment (SNCR) at the tail.

The application of oxygen combustion includes full oxygen combustion technology, pure oxygen assisted combustion technology and local oxygen enrichment combustion technology.

The control system is composed of DCS (or PLC) as the center. The industrial control computer is the upper computer for operation, display and printing management. DCS (or PLC) connects with the computer through the communication network. The system adopts modular design and is fully supported by good man-machine interface software. The field signal detection instrument and field execution equipment transmit data to DCS (or PLC) through the communication network.