Survey on the usage of sulfuric acid desiccant-lined brick towers
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This post was last edited by in the blink of an eye on 2021-6-25 at 14:02. Recently, a policy allowing three children per family was introduced, which is truly great news: lol! However, the post-70s generation, which has the strongest desire to have children, is no longer able to do so: L. As our country moves toward an aging society, those working in the construction and maintenance of the sulfuric acid industry in China are mostly people born in the 1960s. Due to the low profits in the sulfuric acid industry, which make it difficult to afford high labor costs, leakage problems in dry-suction lined brick towers have become increasingly severe over the past 20 years. In China’s sulfuric acid industry, it’s almost unheard of to find a dry absorption lining tower that doesn’t leak. Please list those dry absorption lining towers that have been in use for 10 years without any leaks.
By chance, while on the phone with a colleague in the industry this morning, I asked about it; for an acid production plant with a capacity of 500,000 tons per year that was put into operation around 2010, leaks occurred in the three dry absorption towers, and glue injection was used to address those issues – quite a bit of money has been spent on this over the years.
There are also factories that inject glue into the dry scrubber during operation; as the glue enters the circulating acid and is carried to the acid cooler, this reduces the heat transfer capacity of the acid cooler, causing difficulties in summer.
It’s all due to the pressure to meet deadlines; strict construction standards are followed
It’s also difficult these days to find experienced tile-setting craftsmen
Based on what was observed during the construction process, the main reasons are the unprofessionalism of the workers, poor management by the manufacturer (whose name will not be mentioned), and the lack of qualified supervisors and management teams. Although they are all experienced workers, there’s no choice but to manage things; the construction company doesn’t understand the situation and thinks it’s just like building walls – simply sticking bricks in place is enough, but that’s not the case. It was observed that during construction, the workers did not have the proper tools; when half of the head had been built, it was found that the center was offset, so the bricks had to be cut. For the half brick needed at the junction between the cylinder and the head, a hammer was used to break the brick. Moreover, the gaps between the bricks forming the cylinder are quite large; there are air pockets, and some bricks do not fit tightly against the cylinder, creating gaps. All of these issues pose potential hazards during subsequent operation.