In the paper, it is introduced the supermatic and informationized solution of intelligent unmanned warehouse with collaborative operation of various unmanned equipment such as crane and ground equipment, intelligent scheduling, intelligent storage location recommendation and trace of the entire process of materials is established aiming at how to effectively improve warehouse management and reduce warehouse cost by exploring the establishment of intelligent unmanned warehouse, analyzing such links of the whole process of warehouse as inbound of coils, swing, classified storage and delivery of cargo from storage as well as taking the new technology of unmanned and automatic equipment as supporting point, informationized and intelligent decision making of warehouse management system as support.

In the paper, it is mainly introduced how the heating zone, soaking zone, slow cooling section, fast cooling section, over aging section and exit section combine such equipment as gas-fired radiant tube, electric radiant tube, draught fan, thermocouple and infrared thermometer to conduct the temperature control of radiant tube and strip steel so that the heating or cooling temperature of strip steel in annealing furnace desired by process could be reached through this two temperature control modes.

In the paper, it is introduced the more elaborate distinction and logic control of different materials, categories, widths, thicknesses, coiling diameters and surface treatment methods with automatic control system through the accurate calculation of model aiming at the “heart-shaped” collapse of coil with thinner strip steel as well as the causes of collapse core for steel coil are analyzed through the change of interlaminar stress for steel coil. Moreover, the cone gradient of coiling tension is realized step by step with the change of coiling diameter as well as the realization and application of tension control scheme of hard core for preventing collapse core are discussed comprehensively.

In the paper, it is expatiated the characteristics and mechanism of cold rolled phosphorous high-strength steel, analyzed various production difficulties of such processes as cold rolling and pickling combining with the chemical compositions and physical properties as well as summarized the countermeasures for such various processes as welding machine, pickling and rolling mill of producing phosphorous high-strength steel through a large number of production practices and optimization of process parameters so that the production line could be with continuous and stable production.

The effects of the scratch defect at rail bottom on fatigue life of rail are studied by MTS100T fatigue testing machine. The results showed that the ability of bearing load for rail was declined and its fatigue life was shortened with the transverse scratch defect at rail bottom. The depth of scratch defect at rail bottom obviously influences the fatigue life of rail. With the scratch defect at rail bottom of 75 mm long, if its depth is 0.3 mm, the fatigue life decreases by 27.2% on average, while if its depth is 0.5 mm, the fatigue life decreases by 31.4% on average.

In this paper, the improvement is from the point of view of deformation process by increasing the number of roll in finished pass to form four-roll finished pass, increasing the constraint in direction of depth of rail and limiting free spread of rail surface so as to improve dimensional accuracy of depth of rail aiming at the existing problems in universal rolling of rail. The numerical calculation is performed using ANSYS/LS-dyna, deformation states in different conditions are analyzed, defects are amended so that the optimal solution is obtained. The better effects are obtained by applying it in production line of rail, fluctuation range of depth within the full length range of rail is reduced and defect of “high zone” caused by local depth fluctuation is solved so that the safety of running for high-speed train is improved.

The Yangliugebu Iron Ore occurs in the amphibolite gneiss of Eastern pentamolecular formation of Seltengshan (rock) group in Neoarchean and the ore body is composed of magnetite quartzite. The amphibolite gneiss and magnetic anomaly are direct indicators for deposit. The iron ore in this area is with stronger magnetic properties, so it can be as an indirect indicator for deposit.

In order to improve the grade of iron concentrate and reduce the contents of other gangue minerals in iron concentrate, the concentration with wash mill is added after finely sieving in Concentration Plant of Baotou Steel. Moreover, such tests as feeding concentration of wash mill, magnetic field intensity, opening of water valve and bottom valve are carried out. Finally, the grade of iron concentrate increases from 56.8% to 67.0%, recovery rate of iron is 93.42% so that the effects of quality improvement and impurity reduction are achieved.

The distribution law of apatite mineral in a tailing of Inner Mongolia is 9.25% and content of P₂O₅ is only 3.73% so that it is low-grade phosphorus mineral. Based on the condition experiment, the open circuit test of primary rougher flotation and secondary concentration is carried out with sodium carbonate as the pH adjusting agent, water glass and HSL as the depressor as well as modified fatty acid TQHY as the collecting agent aiming at the difficult problems of low grade of apatite, many types of gangue mineral containing calcium and similar floatability. Finally, the phosphate concentrate with the grade of P₂O₅ of 33.02% and recovery rate of 78.67% is obtained as well as good separating indexes are obtained.

In the paper, the technical plan of applying high silicon fluxed limonite in sintering of Baotou Steel is proposed through carrying out the sintering experiment of replacing serpentine with high silicon fluxed limonite aiming at the characteristic of low content of SiO₂ in Bayan Obo iron concentrate, which could provide technical support for optimizing the structures of iron charge and flux as well as greatly reducing production costs of sintering production of Baotou Steel. The experiment results showed that the cost of ore proportioning of sintering reduced, but drum strength of sinter decreased by 1.87 percentage points and burn-up increased by 1.06 kg/t by adding 10.2% high silicon fluxed limonite after washing and re-separation into sintering; the cost of ore proportioning of sintering reduced and there were no obvious changes for quality index of sinter by adding 3.4% high silicon fluxed limonite (raw ore), so it was suggested to adopt high silicon fluxed limonite (raw ore) for adjusting the content of SiO₂ in sinter.