Latest ArticlesIn the paper, it is introduced the implementation process of ERP cost management module system in the new system of Baotou Steel and partial function of the system. The analysis is given from aspects such as application of activity-based costing theory, system flow of the cost accounting, responsibility of cost accounting. From sales order, implement production and sales integration, ERP information system plays a guiding role in production and operation and product sales of the company.
This paper summarizes the effects of rare earth on steel, puts forward a definition of rare earth microalloyed steel, comparatively analysis different rare earth adding processes. The study shows that the process of feeding cladded rare earth wire into mould is currently the most reasonable adding process for rare earth microalloyed steel production.
In the paper, the main factors influencing the effect of dedusting are obtained through the exploration in dedusting effect of coal charging for the top coal coke oven JN60 in Baotou Steel, and the effective measures to improve the operation effect of coal charging dedusting are put forward. Coal dusts are eliminated during the process of coal charging in coke oven through the improvement of dedusting equipment and optimization of operation management, achieving a good effect, providing a technical reference for the same type of coke oven.
Due to the constraints in the production process of mining system, the raw materials used in the lime kiln are sometimes insufficient. By expanding the particle size range of the raw materials, the most suitable raw material particle size ratio is found. Practice of grading calcination is applied on the two production lines to ensure the yield and quality of the lime kiln, receiving better results.
The SULTAN series of high-energy sound wave level meter can penetrate dust, steam, foam or other interference objects, and its measurement can be continuous, accurate and stable under the harsh condition of coking. In the paper, its application in rare earth steel coking project of Baotou Steel is introduced, and the energy loss in acoustic wave propagation can be reduced and the intensity of reflected echo can be ensured by applying low frequency technology. Advanced echo processing technology and unique low-frequency processing technology making it has a strong ability to identify the echo, which can greatly improve the accuracy of scene level detection, reduce the accident rate of automatic control operation and ensure the normal production.
Furnace condition of 4 150m3 blast furnace in Baotou Steel disorders by the impact of equipment accidents after blow-in. Through analysis, the main reason is the hearth deposition and the thickness in middle part of stack which caused by the long-term slow blast and continuous damping down. The furnace condition can be restored by raising the temperature of the furnace, stabilizing the blast volume, using the charging system of the open center and the stable edge, adjusting the water and water temperature in the middle part.
According to the mechanism of phosphorus reduction in the process of blast furnace smelting, and the existence favorable conditions for phosphorus reduction in blast furnace, it is analyzed from the aspects of current hot metal in Baotou Steel and phosphorus levels of crude fuel etc. By measuring and improving raw material structure into the blast furnace, regulating furnace temperature and other measures to reduce w [P] in hot metal, so as to meet the requirement of smelting bainite steel.
Nitrogen is a kind of harmful element for most steel grade, and the precipitation of nitrides seriously affects the various performance of steel. In the paper, based on the analysis for the nitrogen solubility change in the process of converter smelting, and through optimizing the converter charging system, bottom blown pattern, slagging system, end point control system and alloying system of tapping deoxidation, can effectively control w [N] of molten steel in the process of converter smelting. After the tapping of converter, the average w [N] is reduced from 29.4 × 10-6 to 20.2 × 10-6 after the process optimization, which is a good foundation for smelting low nitrogen steel.
In the paper, it is introduced the effect of hydrogen on the steel quality and the damage to bainite steel. Through the actual production test data, it is studied the source of hydrogen in steel and w [H] during the process of bainite steel smelting in 150 t converter of Baotou Steel. And the measures and effects to effectively control w [H] in bainitic steel are put forward.
In the paper, present situation of truck static lode is expounded and the significance of improving the static load of truck is introduced, meanwhile the factors affecting the static load of truck are analyzed in detail. Combining the present situation of Baotou Steel, the corresponding improvement measures are put forward, which can provide reference for further improving the static load of truck and saving transportation resources.
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