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Grain Rain is the sixth solar term in the twenty-four solar terms，which is from an old Chinese saying - Rain aids the growth of countless grain. This means the rain is very important for the growth of grain at this time of year.

On March 21, 2024, the flower viewing launch ceremony of the 41st China Luoyang Peony Cultural Festival was held in the Sui and Tang Dynasty Relics Botanical Garden. On April 1, the 41st China Luoyang Peony Cultural Festival opened.

Our company has been recognized as a "SRDI Enterprise". We have been focusing on the development of integrated solutions for raw material preparation, batching, solid waste, residual material and recycled material processing. Our goal is to help clients process all kinds of materials more effectively and produce value from them.

The winter solstice has both natural and humanistic connotations. It is not only an important solar term among the 24 solar terms, but also a traditional ancestor worship festival among Chinese people. The winter solstice is one of the four seasons and eight festivals, and is regarded as a major festival in winter. In ancient times, there was a saying among the people that "the winter solstice is as important as the new year." Winter Solstice customs vary in content or details depending on the region. In southern China, there is a custom of worshiping ancestors and feasting during the Winter Solstice. In northern China, there is a custom of eating dumplings on the winter solstice every year.

White Dew, is the 15th solar term in the "Twenty-Four Solar Terms" and the third solar term in autumn. When it comes to White Dew, the summer monsoon is gradually replaced by the winter monsoon. In addition, the point of direct sunlight moves southward, the sunshine time in the northern hemisphere becomes shorter, the light intensity weakens, and the ground radiates heat faster, so the temperature drop speed gradually accelerates, and the temperature difference between day and night gradually widened. White Dew has basically ended the sweltering heat of the summer, the weather is gradually getting cooler, and autumn is beginning to enter in various places.

Luoyang (ancient name——Zhen xun, Xi Bo, Luo Yi, Luo Jing, Jing Luo, Shen Du, Luo Cheng) is also called Yi Luo because of the two rivers of Yi and Luo in its territory. Luoyang, in central China's Henan Province, was named in honor of its situation north of the Luohe River–a tributary of the Yellow River. In ancient China, such a location, or one at the southern foot of a mountain, was deemed to be yang (meaning the sunny side as opposed to yin). Luoyang was thus named. It is one of the first national historical and cultural cities announced by the State Council, one of the four ancient capitals of China, and a world cultural city.

It has been found through practice that the finished ore produced by the grate machine rotary kiln process has the characteristics of uniform quality, good metallurgical properties, more usable fuels, and strong adaptability to raw materials. This article introduces what equipment should be equipped with this production line equipment.

The results show that the optimal drying, preheating, and roasting temperatures of limonite pellets are 200 °C, 700 °C, and 1250 °C, respectively, and the optimal roasting time is 20 min, when the diameter of the pellets is 8–13 mm. The compressive strength of limonite pellets with the addition of 1.5% bentonite was the highest, meeting the demands of a general blast furnace, based on which the iron grade of limonite pellet ore was increased by 10.63%.

In this experiment, a pellet preparation method was investigated to study the drying, preheating, and roasting properties of limonitic iron ore from a plant in Yunnan. The aim was to improve the subsequent iron-making process of limonitic iron ore and make it a substitute for sintered ore. This substitution would reduce the amount of blast furnace slag in the iron-making process. Bentonite is commonly used as a primary binder in many pelletizing plant operations. However, its excessive usage leads to a higher risk of slagging and coking in the furnace.

First, amine-based post-combustion capture with a 95% capture rate was considered as the benchmark, as it is currently commercially available. A second, novel configuration integrated the Midrex process with pressurized chemical looping—direct reduced iron (PCL-DRI) production. The amine capture configuration is most sensitive to the cost of steam generation, while PCL-DRI is more sensitive to the cost of electricity and the makeup oxygen carrier. An iron-based natural ore is recommended for PCL-DRI due to the low cost and availability. Based on the lower costs compared to amine-based post-combustion capture, PCL-DRI is an attractive means of eliminating CO2 emissions from DRI production.

The replacement of the blast furnace—basic oxygen furnace (BF-BOF) steelmaking route with the direct reduced iron—electric arc furnace (DRI-EAF) route reduces the direct CO2 emissions from steelmaking by up to 68%; however, the DRI shaft furnace is one of the largest remaining point source emitters in steelmaking. The capital and operating expenses of two potential nearly carbon-neutral DRI process configurations were investigated as a modification to a standard Midrex DRI facility.

To overcome the limitations of the above two processes, and to achieve a more efficient direct reduction process of iron ore, the possibility of combining these two methods was investigated. The experiments focused on performing an initial direct reduction using ore-coal composite pellets followed by a second stage gas reduction. It was assumed that the initial reduction of the carbon composite pellets would enhance the efficiency of the subsequent reduction by gas and the total reduction efficiency. The porosity, as well as the carbon efficiency for direct reduction, were measured to determine the optimal conditions for the initial reduction, such as the size ratio of ore and coal particles. Thereafter, further reduction by the reducing gas was carried out to verify the effect of the preliminary reduction. The reduction kinetics of the reducing gas was also discussed.