Latest ArticlesIn the paper, the experiences of flushing the hydraulic system on furnace top when overhauling blast furnace of Baotou Steel are summarized based on such characteristics as the great fall of height for hydraulic pipeline and long hydraulic pipeline on blast furnace top. The reasonable flushing scheme is formulated by calculating the component parameters in flushing.
In the paper, the demodulation method with differential-based empirical mode decomposition combining with the autocorrelation noise reduction and wavelet packet decomposition is proposed aiming at the problems that the nonlinearity and nonstationarity of vibration signal for rolling bearing of booster fan for desulfurization of sintering cause the fault features are difficult to be extracted and identified, which provides a new approach for fault diagnosis for rolling bearing of booster fan.
In the paper, the main influence factor for the large scrap quantity and low output per machine-hour when milling with HP type medium-speed mill of Iron-making Plant of Baotou Steel is determined to be the air inlet of nozzle ring through the research analysis on site. The scrap quantity is greatly reduced with three times of modifying nozzle ring so that the goals of increasing the output per machine-hour as well as energy saving and consumption reduction are achieved.
In the paper, the technological process and running state for the cooling system of 6# blast furnace of Baotou Steel are introduced. The causes of damage for the cooling stave are elaborated combining with its applications. The service life of blast furnace is prolonged by such measures as strengthening daily management of cooling system, adjusting cooling parameters in time, strictly controlling the cooling wall temperature and careful maintenance of cooling stave.
In the article, the existing problems of SUPCON distributed control systems (DCS), JX-300X and ECS-100 are introduced respectively as well as they are analyzed in detail based on the relevant theories combining with the actual on-site situations. As a result, different solutions are put forward, the relevant hardware is replaced and software system is upgraded so as to eliminate the hidden troubles of system and achieve the desired effects.
The blast furnace top gas recovery turbine unit (TRT) is one of the technologies for energy recovery in modern iron and steel plants. The top pressure of blast furnace is controlled by the angle of stator of turbine and the turbine drives the generator to generate electricity at the same time so that the potential energy of high-temperature and high-pressure gas is converted to electric energy as well as the wasted energy of blast furnace gas in the pressure reducing valves is recovered. This technology is with good environmental protection benefit and remarkable economic benefit.
With the increasingly serious form of environmental protection, it is extremely urgent to enhance the awareness of environmental protection and increase the environment protecting management level. As a large polluter, the pollutant discharged by Iron-making Plant accounts for more than half of that for the whole company each year. It has become a problem that needs deep thinking for environmental protection practitioners how to realize clean productions. The Iron-making Plant has established and perfected the environmental protection management system through years of efforts and explorations. As a result, a green iron-making plant with pollutant discharge amount reduced year by year and all the daily mean values of online state-controlled pollution sources met the standard has been created.
In the paper, it is discussed how to reduce the labor costs in Iron-making Plant of Baotou Steel under the condition of reducing excess capacity. The labor costs for per ton of iron are greatly reduced and the per capita output of iron is greatly increased with a series of effective measures such as reducing excess capacity, organizational restructuring, improving management concept, optimizing personnel, post, age structure and fund allocation.
In the paper, the design and implementation of overtime workflow statistics platform based on ASP. NET are introduced. It is designed and developed in view of the procrastination and inefficiency in the approval process of the OA workflow in Iron-making Plant based on the current information construction situations. The efficiency of workflow approval could be improved through establishing the management assessment methods based on the statistical data of the platform.
In the paper, the effects of different inlet air modes on the pulverized coal conveying speed are studied by studying the existence form of pulverized coal in cone pump with what-if analysis of theory after charging. With many field tests, it is found out that the pulverized coal conveying speed of cone pump is related to the inlet air modes, relative position of its air inlet pipe and discharge tube, so the pulverized coal conveying speed and operation efficiency of cone pump could be increased by improving the form and position of its air inlet pipe and discharge tube.
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