Automatic coking control system

Sadaki, Jun; Tanaka, K.; Naganuma, Y.

doi:10.1109/cca.1993.348348

Cited by 10 publications

(7 citation statements)

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“…O tempo líquido de coqueificação é obtido por uma inspeção individual dos fornos, baseado em um conhecimento pessoal do Operador, através da visualização dos gases gerados pelo processo. Tanaka et alli [18], mostraram que o gás produzido pelo processo de coqueificação sofre uma variação característica da sua temperatura momentos antes do tempo líquido de coqueificação. Como relatado por Costa e Ramirez-Fernandez [19][20], a determinação do tempo líquido de coqueificação é feita no ponto onde as curvas das temperaturas dos vários termopares da carga começam a ter uma mesma inclinação, ou seja, o processo de coqueificação, endotérmico, já terminou e a carga do forno começa a ter elevação de temperatura na mesma velocidade.…”

Section: Resultsunclassified

Sistema De Controle Da Produção Siderurgica Baseado Em Transferência Do Conhecimento

Matsumota¹,

Costa²,

Costa³

et al. 2014

ABM Proceedings

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ResumoEste trabalho aborda um estudo de caso sobre a transferência do conhecimento siderúrgico de colaboradores da empresa para o sistema que realiza o controle de produção da Usina de Cubatão. Este processo de transferência foi realizado em etapas até a implantação do sistema que registra os principais eventos realizados pelas máquinas operacionais. Estes registros são armazenados em banco de dados e com o uso de ferramentas, podem ser apresentados em relatórios e gráficos. Com isso, a empresa possui um sistema de produção muito confiável, por ter condição de analisar e diagnosticar cada etapa do processo de produção e acompanhar com precisão as falhas e acertos operacionais. Quando há estabilidade no processo e todos os eventos acontecem de acordo com a condição normal de operação, o sistema possibilita um controle aprimorado no consumo de gás e da produtividade. O método utilizado é baseado em um projeto de experimentos que examina a influência dos principais parâmetros de controle no processo de produção industrial.

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Section: Resultsunclassified

Sistema De Controle Da Produção Siderurgica Baseado Em Transferência Do Conhecimento

Matsumota¹,

Costa²,

Costa³

et al. 2014

ABM Proceedings

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“…In this process, a solid carbon unit (i.e., blast furnace coke) is formed from the coal, and gaseous carbonation products escape. Coal is converted into coke by heating the prepared coal blend charge in the coke ovens in the absence of air at a temperature of 1000-1050°C for [16][17][18][19] hours [29,33].…”

Section: Understanding Coke Makingmentioning

confidence: 99%

“…Sadaki et al [29] have proposed an automatic coking control system that stabilizes coke production in a coke-oven battery. The proposed optimal control minimizes the energy problem by minimizing the objective function [29].…”

Section: Overview Of Coking Controlmentioning

confidence: 99%

Heuristic Adaptive Control of Waste Gas Exhausting in Coke Making

Kačur¹,

Flegner²,

Durdán³

et al. 2020

Adv. Sci. Technol. Res. J.

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Stabilization of the carbon monoxide (CO) in the waste gas is a common technical problem in many industrial plants. Stabilization can be performed continuously by regulating the fuel input or by regulating the exhaust gas draught. This paper proposes an adaptive control system for CO stabilization in waste gases based on a discrete controller. Heuristic adaptation of a discrete controller is based on continuous optimization of controller parameters. The advantage of this solution is that the control system does not need to perform the identification of the controlled system repeatedly. The parameters of the controller are dynamically optimized during the production process. By regulating the under-pressure, we change the amount of air supplied to the combustion chambers, which affects the combustion of gaseous fuel and also the concentration of CO in the waste flue gas. The control algorithm was verified for the combustion process in coke making. The proposed control achieved good stabilization quality when verified in simulation and also in an industry operation. The CO level at which the waste gas temperature was highest was selected as the setpoint. It was found that the stabilization of CO in waste gas to lower values is possible to achieve higher waste gas temperature and by that, higher temperatures in heating chambers.

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“…The heat input control [14] in combination with a planned production strategy has an important impact on the cost and quality of coke. The most important objective in the operation of a coke plant is to produce the planned coke quantity with good quality at the lowest cost, hence, heating control [15,16] is the most important function of 'CHCS'. The heat input control for coke oven batteries is done by changing/ controlling of pause time set point that is used during reversion.…”

Section: Heating Controlmentioning

confidence: 99%

Combustion control system for coke ovens embedded with auto positioning systems

Patra

Kundu

Agrawal

2017

Ironmaking & Steelmaking

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A good grade coke produces highest thermal energy and it is highly efficient in hot metal reduction. In order to concentrate the carbon in coke, the coke making process involves carbonisation of coal to high temperature (1100°C) in an oxygen-free atmosphere. There is always a need to efficiently automate the coke oven operations as much as possible. In order to improve the level of control and management of coke oven, the research on intelligent control system is carried out. In modern advanced control system of coke oven, the control scheme of combination of feedback and feedforward merged with management is widely utilised. The integrated management and control system of coke oven is introduced systematically, including the production plan and scheduling management (dynamic scheduling) and heating control system (mathematical modelling) i.e. evaluating battery temperature, intelligent combustion control system and the pressure control of gas collector of coke oven battery.

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Automatic coking control system

Cited by 10 publications

References 0 publications

Sistema De Controle Da Produção Siderurgica Baseado Em Transferência Do Conhecimento

Sistema De Controle Da Produção Siderurgica Baseado Em Transferência Do Conhecimento

Heuristic Adaptive Control of Waste Gas Exhausting in Coke Making

Combustion control system for coke ovens embedded with auto positioning systems

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