Coke and Chemistry最新文献

The introduction of charge stamping requires preliminary laboratory research to determine the parameters with the most influence on the strength of the stamped coal cake and the quality of the final coke. The influence of coal of different metamorphic development on the strength of the stamped briquet is determined. The optimal characteristics of the unstamped batch are established, and the quality of coke produced from stamped batch with an elevated content of poorly clinkering KO coal is assessed in terms of the reactivity CRI and hot strength CSR.

Abstract

Blast furnace operators have achieved a remarkable reduction in coke usage, reaching an optimal level by boosting PCI injection alongside superior coke quality in expansive blast furnace capacities. Technological advancements in blast furnaces have left a profound impact on coke quality. Achieving high injection rates of pulverized coal, maintaining an optimal coke rate, ensuring consistent coke quality, and managing coke costs effectively are achievable only through cutting-edge cokemaking technology. The current landscape of the metallurgical coal market reflects significant technological and techno-commercial shifts compared to past decades. These changes have been diverse over recent decades and will continue to evolve in the future. Thus, it’s imperative to produce desired coke attributes such as coke strength after reaction, coke reactivity index, and M40/M10 ratio to optimize costs and enhance hot metal productivity through the application of appropriate cokemaking techniques. Consequently, selecting the right cokemaking technology stands as a crucial factor in staying competitive within the dynamic global steel market. This study aims to delve into the criteria guiding the selection of optimal cokemaking technology, aiming for high-quality coke production at the most favourable costs, thereby optimizing hot metal expenses. Furthermore, the comparative analysis of various cokemaking technologies, elucidating their pros and cons impacting coke quality and cost, is thoroughly presented. The paper underscores the paramount importance of selecting the right cokemaking technology to yield economically desirable coke quality for effectively operating larger blast furnace capacities.

A construction and installation department has been established at PAO Koks so as to eliminate the need for external contractors during construction, repair, and upgrading of the facilities.

The large-scale automation of production at PAO Koks is described.

At a certain stage, any large industrial exercise faces the problem of keeping its equipment operational in order to maintain production. Most often, internal maintenance services fill this role, although sometimes the work is outsourced. The approaches adopted at OAO Koks today and during its history are considered.

Information security in the automated production control system at PAO Koks is discussed. Organizational and engineering aspects of security required to ensure accessibility, integrity, and confidentiality of data in the critical information infrastructure are noted.

The correct choice of a profession and appropriate career guidance are important not only for the prospects of young people but for the development of society. Experience with career guidance for schoolchildren as part of a long-term strategy for cooperation with the region’s educational institutions is described here. The system of career guidance established today at PAO Koks will improve the prestige of the engineering professions in the Kemerovo region of Kuznetsk Basin, attract students to work at the plant, and provide high-quality professional training for young scientists.

Experience at PAO Koks in the upgrading or replacement of equipment and in the in-house manufacture of new equipment is described. Changes in the equipment design improve its engineering quality and its performance: productivity, durability, precision, operational safety, and ease of maintenance.

Operating experience with coke batteries at PAO Koks is described. Measures are in place to maximize coke battery life. Features of extended battery operation are noted.

The following measures are taken to increase the output of crude benzene, which is produced commercially at PAO Koks, and to decrease the consumption of absorbing oil: redesign of absorbing oil delivery to the washing system in the final gas cooling units; and modernization of the separating column.