May I ask what the current mainstream coking process in China is?

You say it’s too general; the process in question is chamber coking, and the technology for chamber coking is already quite mature

The best coking technology available today is still German-based. In China, there are 3 coke ovens with a capacity of 7.63 tons each, all using German technology; one is at Taiyuan Iron and Steel Group, another at Maanshan Iron and Steel Group, and the third seems to be at Shougang. As for those under construction, I’m not entirely sure. In fact, Germany’s latest technology involves coke ovens with a capacity of 8.3 tons

The best coking technology available today is still German technology; in China, there are 3 coke ovens with a capacity of 7.63 tons each, and all of them use German technology – the first one was installed at Yankuang； The second one is at Taiyuan Iron and Steel, the third one at Maanshan Iron and Steel; Shougang and Wuhan Iron and Steel are in the process of construction. Judging from the progress, Wuhan Iron and Steel should be ahead. In fact, the latest technology available in Germany is that of coke ovens with a capacity of 8.43, and this can be seen at the Schwelgen Coke Plant in Duisburg, Germany

Guys, the question on the first floor is about domestic situations. Currently, coking in China is divided into ramming coking and top-charging coal coking. For ramming coking, China now has its own designed 5.5-meter side-loading ramming units; the Yunnan Qujing Yunwei Group has already put such units into operation (06.12). 6.25-meter side-loading ramming units utilize German technology and are currently under construction. 4.3-meter rammed coke ovens are quite common, and currently **the development of such ovens is encouraged. For independent coking plants, ramming coking is the best option. Top-mounted coke ovens have a height of 6 meters, and many large steel plants in China use this type of oven. Dry quenching of coke has only been adopted in China in recent years, and it offers many advantages in terms of environmental protection and energy savings. However, wet quenching is still widely used in China, and recently there has been a renewed interest in using low-water-level quenching. The effect is also pretty good.

There is no need in China to blindly pursue coke ovens with high carbonization chambers; aside from saving space, they offer no other advantages. Tamped coking is suitable for China’s national conditions. To produce coke of the same quality, ramming can reduce the requirements regarding the quality of the coal raw material; meanwhile, coke produced using high-quality coal in coke ovens of 7.63m scale is also ordinary coke.

I have come here to study* and listen to the experiences shared by my senior peers. :handshake

Coals with high degrees of metamorphism, such as anthracite, are not discussed. For coal with moderate degree of transformation, such as coking coal, 1/3 coking coal, bituminous coal, and gas coal, the primary method of use is coking. This process is already well-developed, and even the largest coking plants operate within this framework. Packing coking (using low-quality coal and coal with low bonding properties), dry quenching of coke (water conservation, environmental protection, recovery of waste heat), gas purification (further processing of tar and heavy oils, desulfurization, decyanidation, denitration, dephenolization), production of methanol from residual gas, power generation using residual gas, and biological treatment of wastewater. However, the type of coal used in coal liquefaction and gasification differs significantly from that used in coking; low-grade coals are primarily utilized, with lignite being the main component, along with small amounts of bituminous coal and subbituminous coal. The conversion rate is closely related to the quality of the raw material, and it is quite difficult to achieve a conversion rate of over 65% in our case.

Please, teachers, point out any mistakes in what I have said. My QQ: 345902861

Coke ovens are used in conjunction with blast furnaces. In China, there are 3 coke ovens of 7.63 meters in size, all built using German technology; the cost associated with this is very high. Currently, 7-meter coke ovens are sufficient for use with blast furnaces in China, as seen in the Ansteel Bayuquan plant

If you really want to understand the coking process, please consult an engineer or teacher specializing in coking. Your question is too vague to answer; it’s not clear what you’re trying to achieve. Answering such questions is like a university professor trying to explain what \"1\" is to preschool children – it’s difficult to explain!

Although the 8th floor is described simply, it refers to true craftsmanship.

Dry quenching of coke is generally used in large-scale coking plants. Currently, there is a demonstration project at MaSteel; the equipment at Pansteel is more advanced, offering better automatic control and operational performance compared to that at MaSteel.