| A lot of industrial and domestic wastewater is produced in China every year. It costs a big deal of money to treat wastewater.In some wastewater, some component can be used as the additive to manufacture CWS. So wastewater and pulverized coal can be mixed to manufacture CWS, which we call coal wastewater slurry. It is a new technology In China, so that few scholars are studying it. Since this technology is at the beginning of pilot study, it is not applied in industry.In this paper, the test fuel is organic waste water slurry. We introduce the 20t/h steam chain boiler and the boiler's operating characters. As the first industrial application of coal organic waste water slurry in China, the project was very successful. Under 50% load, heat efficiency and combustion efficiency could reach to 85.234% and 97.034%. In operating condition, we observed the following result: the coal organic wastewater slurry flame was steady, integrated, centered. The color of the flame was saffron and bright. There were not large spark particles in flame. Stack gas was white. The boiler could steadily, safely, continuously run.In this paper, we introduce the combustion characteristics, heat transfer characteristics. We measure the temperature, flame emissivity, exhaust gas temperature and composition. The particles in combustion chamber are analyzed. We also do some fundamental experiment including static stability, rheological properties and thermal analysis. At last contrast experiment is studied.
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