Single-color-group RST circulating thickening and emission reduction heat treatment equipment and system

The utility model provides a single-color group RST circulating thickening and emission reduction heat treatment device and system, relates to the field of organic waste gas treatment, solves the problem that thickening and emission reduction cannot be really realized in the prior art, and comprises a first fan, a color group heat oven, a VOCs concentration sensor and a second valve which are sequentially connected through a pipeline, the air inlet end of the first valve communicates with the external environment, the air outlet end of the first valve is connected into a pipeline from the air outlet end of the second valve to the air inlet of the first fan, and the air inlet of the second fan is connected into a pipeline from the air outlet of the color cell heat drying oven to the air inlet end of the second valve through a pipeline. An air inlet end and an air outlet end of the third valve are respectively connected with an air outlet of the second fan and waste gas treatment equipment through pipelines; a