Remembering the Glorious Moments – To the Model Worker in My Heart, “Xiao Zhu”

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Remembering the Glorious Moments – A Tribute to My Role Model, Xiao Zhu. Since graduating from university, Xiao Zhu has been working at the company and continuously growing and improving. I am currently a process engineer at the company, as well as its youngest management member. I have extensive knowledge of alkylation, MTBE, aromatization, and isomerization processes, and I am able to offer unique insights in my work. Moving forward step by step along the way, the achievements achieved are truly remarkable. During inspections, the skills of touching, smelling, listening, and observing cannot be limited to just knowing how to do them – they must be put into practice. “There are many cases where problems are detected through sight, hearing, or touch, but it is rare to detect potential hazards by smell. Now, let’s talk about a potential safety hazard that Xiao Zhu detected through smell during his inspection. It was shortly after the aromatization unit was put into operation, during one of the routine inspections. One day, while on shift, Xiao Zhu was inspecting the area near the intermediate feed heat exchanger when he suddenly smelled a smell of burning wood. In an aromatization unit, there are only steel structures and oil and gas – how can there be a smell of wood? It was a north wind at the time; could it be that the smell came in from outside the factory? However, when checking the windward side of the device on the north side, there was no smell of burning. It must be a problem with the device; the burnt smell indicates that there is an open flame or a hidden flame. This is an aromatization unit; the amount of oil and gas involved is several hundred tons, and even a slight leak can cause problems. Immediately inform other personnel to locate the source of the fire and check for any oil or gas leaks. Xiao Zhu carefully inspected the inside and outside of the central heat exchanger, and ultimately identified that there was a problem with the insulation of the heat exchanger’s head. Everyone is also wondering that since insulation foam is being used, it shouldn’t catch fire. Let’s start by conducting an inspection first; we prepared the fire hoses and extinguishers, then removed the insulation. The insulation was removed, revealing its true nature. When the insulation company was carrying out the insulation work, in order to ensure that the insulation material was fixed in place neatly, they wrapped wire around wooden blocks. Due to the high temperature of the heat exchanger inside, some of these wooden blocks became carbonized; when the insulation was removed, the carbonized and hot wooden blocks caught fire due to the presence of oxygen. Fortunately, fire extinguishing water was ready, and the flames were put out. The careless mistake made by the insulation company created a risk of an open flame in the production equipment; fortunately, Xiao Zhu’s keen sense of smell helped to eliminate this threat. If there is a leak in the device before this hazard is eliminated, or if processing takes place, or even during sampling when exhaust gas is displaced, there is a risk of combustion and explosion if that gas happens to drift over. To determine whether knowledge has been acquired, it must be tested by solving problems in actual production. During the initial operation phase of the boiler desulfurization and denitration system, very little ash is discharged by the cyclone dust collector, and the technical team says there is no problem with this. But the coal we use contains a high amount of dust; where does all this dust go? Xiao Zhu carefully compared the process data with the actual conditions on site and determined that the cyclone dust collector was blocked, preventing dust from being discharged. So hammers and clubs were used in turn to remove the blockage and ensure smooth ash discharge. Of course, Xiao Zhu also has many unique and valuable insights regarding process innovation for energy savings and consumption reduction, as well as safe production management. Here, only a few examples are listed for everyone to share.