The Trial Operation of Wanren Thermoelectric 3×35t/h Stoker-feed Boiler Overall Transformation Inclu

Wanren Thermoelectric 3×35t/h Stoker-feed Boiler Overall Transformation Including FGD, Denitration, and Dust Collection Project conducted by Shandong Greenism Environmental Protection Co., Ltd. completed the trail operation successfully for one-off after the full-loaded operation and was handed over officially for its perfect index on November 28th, 2017.

The working process, electric equipment, meters and instruments worked normally and regularly with the overall system involved into commissioning during the full-loaded trial operation and inspection. By December 27th, all the data from the monitoring system after one-month operation showed that all the critical working processes such as FGD, NOx-control & Denitration, Dust Collection passed the major national standards about ultra-low emission.

This project is a transformation project that shall be completed within a short time limit by finishing a large amount of tasks and overcoming a great deal of difficulties because the site is small with many paralleled working face. Our company took innovative measures and made over-all working program to ensure the quality and schedule. The integrated solution owned by Shandong Greenism Environmental Protection Co., Ltd exclusively was taken: an integrated full-packed tower to desulfurize, denitrate, and collect dust simultaneously. From the bottom to the top is grade one circling FGD system, grade two circling denitration reaction system and grade three circling denitration absorbent system, and ultra –clean demister. The flue gas can be discharged and get all the systems worked from the lower part to the high one.

The above solution adheres to the national air-pollution emission standards: SO2≤35mg/Nm3; NOX≤50mg/Nm3; Particulate Matter ≤5mg/Nm3. The hard nut of controlling NOx in stoker-feed boiler has been cracked since its low and unstable temperature in both of the furnace inside and the flue gas itself. A break through had been made by our company in integrated full-packed solution to carry out FGD, Denitration and Dust Collection for stoker-feed boilers, kilns, and incinerators with a limited area and capital. It only took 88 days to hand over the project efficiently after the mobilization. The employer was completely satisfied with the quality, efficiency and stable performance and working data and highly praised and approved the performance of our company. We feel proud as an employee of Shandong Greenism for its good reputation and core competence.