The 120t/h waste heat boiler demolition and installation project of Liugongbu Sanhuan Sinochem was successfully completed.

1 Month 19 Morning of the day 8 o'clock, after an all-night 8 hours of difficult hydrostatic testing, Yunnan Sanhuan Sinochem Fertilizer Co., Ltd. sulfuric acid II Phase device 120t/h The test indicators of the waste heat boiler system of the unit fully meet the requirements and are fully prepared for the furnace drying. Through our 13 days and nights of unremitting persistence and efforts, we have submitted a satisfactory answer to the owner.

Looking back on this period of time, it can be summarized as uneasy eating and restless sleep. Today, the news of the successful hydrostatic test has spread, and everyone has breathed a sigh of relief, relieved the burden on their hearts, but it is approaching the Spring Festival, and the expectation of returning home is written on everyone's face. Putting aside the busy mood, we pack our bags to go home. We have fulfilled the promise of giving all the participants in this construction a holiday before the festival, 3 and we also fulfilled the promise to the owner that the car could be successfully started before the festival.

In this boiler construction, the project department overcame the time difficulties of delayed equipment arrival, the technical difficulties of the deviation in the installation positions of the old steam drum and the new drum, the difficulties of the floating hearts approaching the Spring Festival, and the difficulties of major temporary changes in the downcomer and drain pipes. The successful commissioning of the boiler system has solved the owner's concerns about the Phase I sulfuric acid device facing a complete shutdown and collapse due to operation with defects, and solved the anxiety of the owner's employees caused by the inability to take a holiday on time due to boiler construction.

This construction, X X-ray weld radiography totaled 487 pieces, qualified at once 483 pieces, partial rework 4 pieces, weld qualification rate reached 99% above. Due to the careful organization and control of the project department in personnel organization, quality control, and safety management, it fully demonstrates the company's strong strength in the installation of pressure pipelines and pressure vessels. The Sanhuan Chemical Repair Project Department of the Sixth Construction Department also lived up to its mission and was not afraid of difficulties. In the most beautiful time of the year, it submitted a satisfactory answer to the company and the owner.

Sixth Construction Department / Chu Wenlin