Latest ArticlesIn the paper, it is introduced the two-sided threading cutting head is designed with two sides and multi style to realize the two-sided threading and utilization through reforming the threading cutting head aiming at the problems in threading productions of Steel Tube Co. of Baotou Steel, with which 4.23 million yuan can be saved for one year so that good economic benefits are created for the enterprise.
In the paper, the faults of impact hammer mill are analyzed, the main causes for rotor vibration are rectified and reformed as well as the optimization and improvement measures for impact hammer are proposed, with which the effects are good.
The coiler for trimmings is an important equipment for the rewinding unit of silicon steel production line of CSP Plant. At the beginning of constructing the production line, there were such equipment problems of coiler for trimmings in the process of rewinding silicon steel as guard dise of mandrel blocking belt, oversize bounce of press roll and abrasion of copper slider for winding device. They are solved through redesigning and improving the relevant functions of coiler for trimmings so that the equipment failure rate is effectively decreased, service cycle of spare parts and the production capacity of rewinding production line are improved.
In the paper, it is analyzed the process for scrap caused by off tracking of hot continuous rolling strip steel when entering rolling mill and passing through belt as well as the camber of head impacting the guide plate at inlet side. The physical process and influencing factors of scrap caused by impacting guide plate are determined through detailed analysis on the data of heating, rough rolling and finish rolling processes. The main preventive measures are determined from the aspects of heating temperature, plate shape of rough rolling, operation and equipment accuracy so that its probability is reduced.
In this paper, it is introduced the working principle and advantages of oil-gas lubrication as well as analyzed the exsiting problems in the applications of oil-gas lubrication system of withdrawal straightener of 6# continuous casting machine. Moreover, the improvement measures are put forward and applied successfully.
In the paper, the system of shipment and write off for ERP of Baotou Steel based on J2EE is discussed. The company's business model of shipment with railway and highway is as the research object aimed at providing a friendly management platform of shipment and write off for users. The system is developed with MVC development mode, two functional modules, the management modules of railway shipment and write off as well as the highway shipment and write off are designed to meet the current demand for shipping management system through in-depth study of shipping management mode.
In this paper, it is introduced the composition of supply unit for 25 kg and 100 kg medium frequency induction furnace in a laboratory and the specific functions of each device, analyzed the changing rules of medium-frequency power supplies with parallel resonance and series resonance in rectification and contravariance, given the calculation formulas of main parameters as well as compared and analyzed combining with the actual use. The results showed that the medium-frequency power supply with series resonance was easy to be started, which was more suitable in workplace with frequent start; while the medium-frequency power supply with parallel resonance was more difficult to be started, which was not suitable to be used in workplace with frequent start, but it was with strong adaptive capacity to the load so that it was more used in workplace where the smelting steel grade changed at any time.
In this ppaer, the main problems of sewage treatment plant in industrial park concerned in environmental impact assessment process including such as the analysis on process plan of sewage treatment and treatment measures of foul gas are discussed aiming at the complexity of sewage in industrial park by taking a Sewage Treatment Plant in an industrial park as an example, which can be as reference for fraternities.
The chromium-containing wastewater in galvanization is a kind of wastewater with larger discharge amount in the electroplating industry. It contains the heavy metal chromium, which can cause serious pollution to the environment if discharged arbitrarily. In this paper, the treatment process of chemical precipitation method + biological active carbon + ultrafiltration + reverse osmosis + evaporation crystallization is adopted for chromium-containing wastewater. It is mature as well as the treatment effect is stable and reliable, which could meet the requirements for zero discharge of chromium-containing wastewater and be as the reference for fraternities.
With the enhancement of national environmental requirements, it is necessary to change the mode of open－air coal piling and it is urgent to seal the coal yard. After the coal yard is sealed, the working environment of staff is sealed and with more coal dust, so the safety issue needs to be paid urgent attentin. In the paper, the gas, dust and temperature monitorings in coal yard are realized as well as the early warning is given combining with the design and applications of safety monitoring system in a sealed strip-type coal yard so as to ensure the safety of personnel and coal yard.
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