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Jidong Cement Group Haitian Wenxi Subsidiary Company 5000t/d Cement Production Line

  • Time of issue:2021-06-04
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(Summary description)Jidong Haitian Wenxi Cement Co., Ltd. is a joint venture joint-stock company by Jidong Cement Co., Ltd., Shanxi Haixin Xinguang Cement Co., Ltd. The two joint venture companies signed a cooperation agreement in the end of September 2007, and the project company was registered in January 2008. According to the development plan of Jidong Cement Co., Ltd., it actively planned for the use a large number of industrial waste of Shanxi Haixin Iron and Steel Co., Ltd., with overall planning, step by step, the initial preparations for the construction of a 5000t/d clinker line, and commissioned Nanjing Kisen international Engineering Co., Ltd. as the design company for the project. After a lot of preliminary work, the project achieved “the approval of Jidong Haitian Wenxi Cement Co., Ltd. 4500t/D Clinker Cement Production Line and Resources Comprehensive Utilization Project ” with official code Jinjingtouzizi [2008] No.5 by Shanxi Province Economic Commission on January 10, 2008.

Jidong Cement Group Haitian Wenxi Subsidiary Company 5000t/d Cement Production Line

(Summary description)Jidong Haitian Wenxi Cement Co., Ltd. is a joint venture joint-stock company by Jidong Cement Co., Ltd., Shanxi Haixin Xinguang Cement Co., Ltd. The two joint venture companies signed a cooperation agreement in the end of September 2007, and the project company was registered in January 2008. According to the development plan of Jidong Cement Co., Ltd., it actively planned for the use a large number of industrial waste of Shanxi Haixin Iron and Steel Co., Ltd., with overall planning, step by step, the initial preparations for the construction of a 5000t/d clinker line, and commissioned Nanjing Kisen international Engineering Co., Ltd. as the design company for the project. After a lot of preliminary work, the project achieved “the approval of Jidong Haitian Wenxi Cement Co., Ltd. 4500t/D Clinker Cement Production Line and Resources Comprehensive Utilization Project ” with official code Jinjingtouzizi [2008] No.5 by Shanxi Province Economic Commission on January 10, 2008.

Information

1. Basic information

Jidong Haitian Wenxi Cement Co., Ltd. is a joint venture joint-stock company  by Jidong Cement Co., Ltd., Shanxi Haixin Xinguang Cement Co., Ltd. The two joint venture companies signed a cooperation agreement in the end of September 2007, and the project company was registered in January 2008. According to the development plan of Jidong Cement Co., Ltd., it actively planned for the use a large number of industrial waste of Shanxi Haixin Iron and Steel Co., Ltd., with overall planning, step by step, the initial preparations for the construction of a 5000t/d clinker line, and commissioned Nanjing Kisen international Engineering Co., Ltd. as the design company for the project. After a lot of preliminary work, the project achieved “the approval of Jidong Haitian Wenxi Cement Co., Ltd. 4500t/D Clinker Cement Production Line and Resources Comprehensive Utilization Project ” with official code Jinjingtouzizi [2008] No.5 by Shanxi Province Economic Commission on January 10, 2008.

Relying on the effective management of Jidong Cement Co., Ltd., the actual operation situation after production not only exceeded the design guarantee requirements, but also gained the main production indicators ranking the forefront of the Jidong Cement similar enterprises. Based on the actual effectiveness after commissioning, the project won the first prize of Fifteenth Outstanding Engineering Achievement Award in Building Material Industry by China Building Materials Construction Association in 2011.

2. Main technical difficulties and outstanding features

1) The project most significant feature is to realize the comprehensive utilization of local large amounts of magnesium slag, furnace slag, fly ash, slag, steel slag as auxiliary materials and cement admixture, and proposes the practical and feasible, safe and reliable, practical and rational technical scheme, and applies anti blocking technology measures for storage, loading and unloading, transshipment in production sector. The annual total design physical consumption amount is nearly 1300000 tons, which is extremely rare to use such a large number of industrial waste residue in previous projects, it also opens up a new way to comprehensive use of raw material resources in the cement industry.

2) The main technical difficulty of the project is the foundation treatment of collapsible loess site, and each regions have not same collapsible grade, the importance of each type of buildings and different. According to the collapsible feature of each area of construction site, properly divided the general layout pattern of each production area, considering the supporting simultaneous construction of waste heat generation and reserving second line area; in the premise of ensuring the engineering safety, reliability, economy, emphasized the optimization foundation design, comprehensively considering the cross of civil investment and the safety of the project.

3) Another significant feature of the project is the clinker burning and cooling system is composed of Nanjing Kisen preheater and calciner, Nanjing Kisen four channel coal burner, Tangshan Dunshi kiln and Jidong fourth generation grate cooler. This engineering design fully grasps the particularity of the whole system and the balance of the products of different companies, organically play optimal production efficiency of the whole system. This is also technical landmark engineering in Jidong Cement technical and construction mode by Nanjing Kisen.

4) The project uses two sets of roller mills and two sets of cement combination grinding systems, which was seldom applied at that time, at the same time, separate slag grinding system used at the time belongs to the energy saving vertical mill. Innovative applications of these new technologies, new equipment, new model, created the prerequisite for maximum use of a large number of local industrial waste, eventually achieved good effects.

3. Main production operation status

In August 2009, this project was formally completed and put into production, the maximum capacity of kiln system had reached ~5960t/d, but because the kiln main drive current was too large, the temperature of clinker out of cooler was too high, the annual output of kiln has been maintained at 5300~5400t/d, cyclone 1 outlet temperature was 284~295℃, output pressure was 4820~5000Pa, f-CaO less than 1.5% in the clinker qualification rate was not less than 90%.

According to statistics of production: when using ~10% magnesium slag as a calcium supplement materials of limestone, coal consumption standard of kiln system is 104~105kg/t-cl; when the calcareous materials all adopt the limestone, coal consumption standard of kiln system was 107~108kg/t-cl; unit clinker consumption was 58.2~59kWh/t-cl; 3 days of clinker strength was 30~32MPa, but the 28 day clinker strength fluctuated around 54~58MPa. In addition, due to the influence of local product sales market, the comprehensive utilization of local large amounts of magnesium slag,  furnace slag, fly ash, slag, steel slag and other industrial waste as auxiliary raw material and cement admixture, the total amount of annual average real in general was about 1100000 tons.

Because this production line is stable and reliable, the technical indicators are currently one of best of the Jidong Cement subordinate Enterprises of the same scale, the leaders at all levels of the Jidong Cement Co., Ltd. have repeatedly to visit and inspect Jidong Haitian Wenxi Cement Co., Ltd. and gave high evaluation on this cement clinker line. 

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