Jida Machinery: The gap in domestic cement grinding technology is not in equipment performance
Currently, in the context of promoting green and scientific development, the energy conservation and emission reduction efforts in the cement industry are constantly increasing. With the implementation of the new version of the "Energy Consumption Limit for Cement Unit Products", the energy conservation and emission reduction of the cement industry will face more severe challenges. As one of the most important energy consuming links in cement production, energy conservation in the grinding system has attracted much attention.
According to statistical data, the energy consumption of grinding reaches about 70% of the entire cement production process, indicating a huge potential for energy conservation. In view of this, in recent years, process modes and equipment such as vertical mill final grinding, roller press final grinding, and combined grinding have been widely applied in China, which has to some extent reduced the energy consumption per unit of grinding in the domestic cement industry. However, compared with foreign technological levels, the current situation of high cement production capacity consumption in China has not been reversed.
Compared with foreign countries, there is no significant gap in domestic grinding equipment and manufacturing processes, and some products have even led the way. However, the energy consumption of grinding is still high, and the fundamental reason is that the grinding process system is unbalanced, which cannot truly achieve system optimization. "Recently, Zhu Shunming, General Manager of Yancheng Jida Machinery Manufacturing Co., Ltd. (hereinafter referred to as Jida Machinery), said during an exchange with the" China Cement Industry Top 100 Tour "team composed of Chen Yongjun, Executive Director of the Brand Center of China Cement Network, and He Xuelu, Brand Center Manager of China Cement Network.
Yancheng Jida Machinery Manufacturing Co., Ltd
Jida Machinery is a private technology enterprise restructured from the state-owned medium-sized enterprise Yancheng Building Materials Machinery Factory. As a member unit of the Building Materials Machinery Standardization Technical Committee and an important building materials machinery production base in Jiangsu Province, the company always adheres to the quality policy of "providing customers with satisfactory products and striving for zero defect management". The products are strictly organized according to the standards and have been tested as excellent products by the Building Materials Machinery Quality Inspection Center multiple times.
Over the years, Jida Machinery has relied on its strong independent research and development capabilities, attached great importance to new product development and technological innovation, and developed products such as SM series grinding, Sepax Jida high-efficiency eddy current powder selection machine, JD series roller press, O-Sepa powder selection machine, dual rotor powder selection machine, and closed-loop high-precision grinding internal transformation supporting equipment. Jida Machinery is deeply involved in the field of cement grinding machinery. With excellent quality and comprehensive services, its products are sold well in China and exported to more than ten countries such as Sudan, South Africa, and Greece, establishing its industry position as an important supplier of cement powder equipment in China.
Zhu Shunming: "Nowadays, many people are debating the advantages and disadvantages of vertical mills, roller mills, and ball mills, as well as discussing the spheroidization of cement grinding. In fact, in terms of equipment, there are no advantages. Various grinding equipment itself has corresponding shortcomings. The key is whether cement companies integrate equipment with the actual situation of the production line to achieve system balance
According to the introduction, the cement grinding process itself is not simply crushing, and its technical process is extremely complex. The energy consumption constraints of a single grinding system during operation are not limited to the equipment itself. Due to factors such as different ore quality, personnel operation, and supporting equipment, there are often significant differences in equipment usage.
Zhu Shunming mentioned an example to a reporter from China Cement Network. A few years ago, a well-known cement enterprise in China imported a set of vertical grinding equipment from abroad as the final grinding machine for cement. The system performed well in foreign countries and during production trial operation, but in actual production, due to too many problems in operation and management, it ultimately failed to meet the design intention and had to be used as a semi final grinding system.
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