Xinjiang Xinlianxin Energy and Chemical Industry’s coal washing and processing technology gets further upgraded

Thread Content

Further Upgrade to Coal Washing Processes at Xinjiang Xinlianxin Energy Chemical Co., Ltd. Author/Source: Xinjiang Xinlianxin Energy Chemical Co., Ltd. Date: November 27, 2021 Clicks: 14 In order to increase the recovery rate of refined coal and improve the efficiency of coal washing, Xinlianxin Xinjiang Company planned to carry out technical upgrades to its coal washing facilities in April this year, by adding an additional flotation unit. Following preliminary investigations, evaluations, construction, and commissioning, the flotation unit was successfully put into operation on November 19. Currently, the load of the raw coal flotation system meets the requirements, and the equipment is in a stable operating state. The successful operation of the flotation unit has enabled Xinjiang Company to carry out a second extraction of high-quality coal from coal slurry, achieving a recovery rate of over 75% for this high-quality coal. This has allowed for more efficient use of coal and reduced the company’s production costs. As the project enters its critical construction phase, due to the impact of the pandemic, technicians from equipment manufacturers and chemical suppliers are unable to come to the site for guidance. To overcome this difficulty, Zhang Shengjia, the head of the raw coal washing section, Wang Yapeng from the technical department, and others took the initiative to undertake this task. They studied the relevant books carefully, communicated with the equipment manufacturers’ technical staff on multiple occasions, and used their free time to search the Internet for relevant information in order to understand the manufacturing process of each piece of equipment, thereby providing reliable technical support for the successful operation of those devices. During the operation of the equipment, its load could not be increased, failing to meet the energy-saving requirements. The raw material processing workshop actively investigated the causes, carefully checking each piece of equipment and each valve, and conducting repeated adjustments. At the same time, in collaboration with the Technical Management Department, they conducted a thorough analysis of the equipment’s operating conditions and carried out repeated evaluations. It was found through analysis that a single filter press was simply not sufficient to meet the production demands; therefore, they pursued innovation by adding an additional section to the existing inlet pipe, enabling the two filter presses to be used alternately and thus increasing the production capacity. Ultimately, through the joint efforts of everyone, the raw coal flotation project was successfully put into operation on November 19. The production capacity remained at the required level; the raw coal processing plant was able to produce more than 200 tons of refined coal per day compared to before, with a refined coal recovery rate of over 75%. This effectively reduced the company’s costs associated with coal usage and improved the efficiency of coal utilization. In the future, Xinlianxin Company will take practical actions to drive efforts in energy conservation and consumption reduction, continuously uphold the concept of green and high-quality development, and contribute to achieving the goals of \"carbon peak\" and \"carbon neutrality\".