Latest ArticlesIn the paper, the influences of circulating water temperature and water quality on the economic benefits of coke dry quenching are analyzed. It is concluded that the circulating water system for coke dry quenching is fatal to its economic benefits through comparing various process parameter indexes of the system before and after overhaul, which aims to improve the economic benefits of coke dry quenching device by strengthening control of the system.
In the paper, it is comprehensively summarized the process adjustment and implementation of maintenance measures during the overhaul of single system for A/A/O biological reaction tank of sewage biological treatment system in Qinghua Coal Chemical Industry Co., Ltd. of Baotou Steel, which could be as the references for similar overhaul of water treatment system in future.
In this paper, it is introduced the study of corrosion for chain steel with the triethanolamine and ascorbic acid as inhibiter as well as the mixture of desulfurization waste water and slag water from Power Plants as corrosive medium. Its corrosion law is studied by such methods as the weight loss experiment, self-corrosion potential and electrochemical experiment. The experimental results showed that the degree of corrosion for test steel was the lowest and the corrosion-inhibition effect was better after add the inhibiter of triethanolamine into waste water.
In this paper, it is introduced the basic composition of scanning electron microscope and its technical advantages in the field of steel material. The focus is to conclude and analyze the typical application examples of scanning electron microscope in physical analysis and detection.
In this paper, it is introduced the construction method of maintenance with comprehensive method of heat accumulation for concrete in winter based on the thermodynamic calculation of maintenance and construction for concrete, which could be as the reference for the quality control of mass concrete construction in winter.
The prospecting area in Baritu copper polymetallic ore is located between the metallogenic belts in the middle and north section as well as in the southern section of Da hinggan ling metallogenic region. The metallogenic characteristics of this prospecting area are analyzed by comparing with the two metallogenic belts in the north and south. It is considered that the mineralization is mainly related to the strata of Duobao mountains of the Lower-Middle Ordovician, the acidic and alkali granite in the early Yanshan period as well as is quite different from the geological characteristics of the metallogenic belts in the south and north of Da hinggan ling area. Meanwhile, the metallogenic potential of the prospecting area is analyzed and several prospecting targets are determined.
In this paper, it is summarized the coking coal resources used by Baotou Steel in recent years. With the changes of supply and demand for coking coal resources, the characteristics of coal blending structure for 7 m coke oven as well as the changes of it and coke quality with the changes of resources are analyzed from the regional variation and variety variation trends of coking coal resources. Moreover, the coal substitution under the premise that the coke quality meets the manufacture requirements of blast furnace is studied and some suggestions on continuing to optimize the coal blending structure are put forward.
The temperature of upright flue for coke oven is fluctuated with the variations of various factors. In order to make the flue temperature meet the requirement of even heating for every carbonization chamber of the whole coke oven, the temperature of upright flue should be measured frequently and adjusted in time so that it could reach the specified standard temperature range to guarantee the coke cake is evenly mature within the required coking time. In the paper, it is discussed the adjustment and control measures of coke oven temperature for various production states of coke oven, which provide the technical references for adjustment and control of mean flue temperature for the same type of coke oven in the industry.
In this paper, it is proposed a method for constructing a prediction model of coke production quality with the neural network technique using the process and production data accumulated during the coke productions of Baotou Steel.
The coal injection system of 7# and 8# blast furnaces in Rare Earth Steel Iron-making Plant is with three coal injecting tanks, single pipeline and three distributors as well as the discharging is with the direct injection mode of rotary feeder. Since it was put into operation in 2014, there have been such problems as the failure of injection because of small amount of coal, the continuous damages of pressurizing group of coal injecting tank, the blockage of spray gun in the process of cleaning filter grate and the failure of complementation of two blast furnaces. They are gradually improved through improving the automatic coal injection system and optimizing the equipment wear.
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