[Haichuan Chemical Salary News] Huangling Coal Chemical Industry: “Three rounds of renovations” ensure that the exhaust gases from the sulfur melting furnace unit have nowhere to escape
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Recently, the chemical production workshop of Huangling Coal Chemical Company, through three rounds of technical upgrades, managed to capture the unpleasant odors emitted by the sulfur release devices in 5 sulfur melting reactors, preventing the emission of these odorous exhaust gases. This is not only an important measure for this workshop to protect the ecological environment and improve the control of unpleasant odors in the area, but it also represents the staff’s efforts in pursuing innovation, optimizing process equipment, and upholding a culture of excellence through dedication and skill. It is understood that sulfur-emitting exhaust gas is the gas emitted during the sulfur release process in the sulfur melting tank; it has a pungent odor, is harmful to health, and can cause severe corrosion of equipment. To address this issue, the company’s chemical production workshop installed an \"open-type fixed recovery hood\" above the sulfur release tank for the first time, using exhaust fans to draw the exhaust gases into a purification tower for purification and to eliminate unpleasant odors. Due to the characteristic of gases dissipating in a disorganized manner, the results were not very good this time. The chemical production workshop carried out a second upgrade, replacing the exhaust gas recovery hood with a \"closed-type cover recovery hood\" that is 4 meters long and 2 meters wide, which was placed over the discharge channel; as a result, the unpleasant odors at the site were effectively reduced. After some time of use, new problems arose. The \"closed-type cover recycling hood\" posed difficulties in the sulfur discharge process; to clean the sulfur, workers had to remove the exhaust gas hood. The iron cover, which was 4 meters long and 2 meters wide, weighed hundreds of kilograms, and it required two people to move it. This not only increased the workload for the workers but also led to deformation of the cover due to frequent manual handling, thereby affecting the efficiency of exhaust gas treatment.
“ Difficulties are like springs: the stronger you push them, the weaker they become. The two previous technical upgrades both had defects to varying degrees, but this did not affect the determination of the staff in the chemical production workshop to protect the ecological environment and to intensify efforts to address odor problems in the area. They established another team dedicated to improving the technology for recycling sulfur-containing exhaust gases; workshop managers, technical personnel, and maintenance workers gathered to discuss the details of designing this device. Based on the previous upgrades, it was decided to install pulleys between the sulfur discharge tank and the cover, which would help solve the problem of difficulty in moving the cover； At the same time, water seals were installed at the connections between the sulfur release tank and the cover plate, as well as between the cover plate and the exhaust gas recovery pipeline, to further prevent the spread of unpleasant odors and ensure that such odors have no way to escape. Once the plan was finalized, the workshop immediately assigned 5 maintenance workers to work tirelessly; it took only 7 days to complete the technical upgrade of the \"closed-track recovery hood\" for the third exhaust gas recovery system. “The sulfur melting exhaust gas recovery device has undergone three rounds of technical upgrades: from an \"open fixed recovery hood\" to a \"closed cover-type recovery hood\" and then to a \"closed slide rail-type recovery hood\". These upgrades have resolved the issue of exhaust gas leakage during the sulfur release process, improved the convenience of operation, and reduced the workload for the staff. “It wasn’t exactly a difficult journey, but these trials and tribulations taught us one thing: as long as we approach problems with an innovative mindset, keep exploring through practice and applying what we learn from that exploration, we will surely be able to overcome any challenge. ”Zhang Pengpeng, the inventor of this device, said with a smile. (Huangling Coal Chemical, Qiu Lijun)
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Front-line workers and technicians have a good understanding of the situation on site; generally speaking, they also have many ideas for handling it, and as long as those ideas are put into practice and further improved over time, the desired results can be achieved. The key is to encourage such innovation and invention, motivating them to take the initiative to solve real-world problems
Must like it! No one is strong enough to achieve success overnight; the problems are solved through step-by-step practice.
What is the quality of the clear liquid from the sulfur melting tank? Salt extraction operation?
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How is the residue treated after sulfur release?