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Hao Laiyin speaks at the Guangdong cement industry technical exchange
On 27 September 2025, Chairman Hao Laiyin spoke at the Guangdong cement industry technical exchange in Zhaoqing, in a report titled “A brief analysis of the special performance requirements placed on refractories when cement rotary kilns adopt rotary masonry, with application cases, results and advantages.”
Hao Laiyin, chairman of Zhengzhou Jinxing Refractory Co., Ltd., gave a report titled “A brief analysis of the special performance requirements placed on refractories when cement rotary kilns adopt rotary masonry, with application cases, results and advantages.” He presented the current state of cement rotary-kiln production and the background to the development of rotary masonry; problems still to be resolved in kiln operation; the development and characteristics of Jinxing JX special corundum composite brick; and application cases and results of Jinxing rotary masonry on various rotary kilns.
On the morning of 27 September, the 2025 Guangdong cement industry technical exchange and inspection-capability comparison summary meeting was held successfully in Zhaoqing. More than 170 managers, engineers, technicians and experts from cement production, distribution, research, teaching and service organisations in Guangdong, Guangxi and Hainan took part. The meeting was chaired by Chen Yuexun, chief engineer of the Guangdong Cement Industry Association.
In the closely watched technical-exchange session, participants discussed key technologies for energy saving and carbon reduction, the quality-management situation, and experience in building intelligent plants, bringing together ideas of both theoretical and practical value for high-quality development of the industry.
Professor Yin Suhong of South China University of Technology gave a report on “An exploration of calcining clinker from solid waste based on low-carbon cement.” She introduced the research background and current situation, analysed from a professional perspective the effects of pyrite tailings/phosphogypsum as mineralisers, and of carbide slag/yellow phosphorus slag as a substitute for limestone, on the formation and performance of cement clinker, and shared her research findings with the meeting.
Wu Jinfeng, deputy chief engineer of the Guangdong Cement Industry Association, gave a report on “Guarding against a downward trend in cement quality under involuted market competition.” He analysed current market conditions and problems at enterprises themselves, drew on supervision and inspection by the market-regulation authorities and on commissioned testing, offered a number of useful suggestions for enterprise development, and stressed that product quality must never be sacrificed as a way to cut costs and raise efficiency, and that quality should become a habit.
Li Hong, former chief engineer of Tapai Group, gave a report on “Homogeneity and stability as the foundation for building a new dry-process intelligent plant.” He set out his understanding of “homogeneity and stability” and its importance, pointed to the bottlenecks in the new dry-process cement process, and discussed how to achieve homogeneity and stability of the material after it enters the rotary kiln and before it reaches the burning zone.
At the inspection-capability comparison summary meeting, Xiao Huiyu, deputy secretary-general of the association, delivered the 2025 summary report on the “Guangdong Corps Standard Sand Cup” inspection-capability comparison. In line with work requirements on building a pattern of quality-and-safety social co-governance in the circular of seven Guangdong departments transmitting the national opinion on improving cement product quality and regulating the cement market (Yue Shi Jian [2021] No. 56), the association continued the 2025 comparison, with 363 organisations taking part. Xiao summarised the work from four angles — background, progress, analysis and recommendations — and analysed abnormal data, non-conformities and quality traceability. Xu Richang, vice president and secretary-general, then read out the announcement of the selection results: 112 “all-excellent” units, 52 “all-qualified” units, 130 units qualified in physical properties and 8 units qualified in chemical analysis. Plaques were presented to the honoured units, and certificates and souvenirs were awarded to those named “outstanding laboratory director.”
At the subsequent second membership meeting of the ninth council of the Guangdong Cement Industry Association, Secretary-General Xu Richang delivered the report on the association’s work in the first half of 2025 and its main tasks for the second half. The membership meeting then completed its agenda.
The meeting provided a platform for sharing technology and experience, and, through the inspection-capability comparison, further raised the industry’s quality-management level and reinforced enterprises’ attention to product quality.
