"The 14th China Cement Energy Conservation and Environmental Protection Technology Exchange Conference and the 6th Intelligent Summit Forum" was solemnly held

On September 23, the 14th China Cement Energy Conservation and Environmental Protection Technology Exchange Conference and the 6th Intelligent Summit Forum were held in Zibo, Shandong Province. Lv Guixin, former first-level inspector of the Raw Materials Department of

the Ministry of Industry and Information Technology, Liu Zonghu, Vice President

of Tianshan Materials Co., Ltd., Teng Yongjun, Chairman of

Shandong Shanshui Cement Group Co., Ltd.,

Shandong Cement Industry Association Member of the Party Committee of Shanshui Cement Group, Vice President Feng Cunwei, Vice CEO of

Asia Cement (China) Holding Company, Yu Jianping, Executive Chairman of

Hubei Cement Industry Association, Wang Xuejun, Chairman

of 0CC, Ma Weiping, Vice President and Secretary-General of

China Building Material Industry Economic Research Association, Wang Gang

, Vice President of China Building Materials Industry Planning and Research Institute, Secretary-General of Shandong Cement Industry Association, Vice President of China United Cement Group Co., Ltd., Yin Qunhao

, General Manager of Marketing Department of Tianshan Materials Co., Ltd., Dai Haojun

, Secretary of the Party Committee of Queshi Group, Chairman Wei Huashan

Chairman of Hubei Century Xinfeng Technology Group Co., Ltd. Zhuge Wenda General Manager of

China Railway Materials Anhui Tiepeng Cement Co., Ltd. Wang Degui Deputy General Manager of

China Gezhouba Group Cement Co., Ltd. Zhou Shanjian

Anhui Shunyue Cement Co., Ltd. Liu Bo

, Chairman of Limited Liability Company Zhang Shiwei, Vice Sales Director of Anhui Conch Cement Co., Ltd. Xiong Ke

, Secretary-General of

Chongqing Cement Association Yang Mingqiu, General Manager of Zhejiang Xindu Cement Co., Ltd. NK23 Assistant General Manager of Shandong Quanxing Energy Group Co., Ltd. Wu Weicheng 0 HTML0 UNK2 4 Deputy General Manager of China Railway Materials Anhui Tiepeng Cement Co., Ltd. Zha Defang 0 HTML0 UNK2 5

Qingzhou Zhonglian Cement Co., Ltd. has an annual output of 200000 tons of carbon dioxide oxygen combustion enrichment and purification demonstration project, which is the largest cement industry in China, the first set in Shandong Province and the first cement plate carbon capture and utilization project of China Building Materials Group. It has been listed in the first batch of major scientific and technological projects in the national building materials industry and the National Development and Reform Commission's "Green Low Carbon Advanced Technology Demonstration Project". The liquid carbon dioxide production capacity of the project is 200,000 tons/year. Among them, the industrial grade CO2 is 150000 tons per year, and the food grade CO2 is 45000 tons per year. Dry ice is 0.

Ye Jiayuan mainly introduced the high belite sulphoaluminate cement. The cement is suitable for projects such as ports, seawalls, crack-free corrosion-resistant floors, rapid repair and the like; compared with the traditional cement, the cement accelerates the construction progress, improves the corrosion resistance, reduces the cracking risk, reduces the carbon emission by 30%, has a relatively high price, but is about 30% lower than that of the sulphoaluminate cement, has stable growth of the strength in the later period, has better cost performance in the whole period, and needs to pay attention to mechanized rapid construction. It has been successfully applied in the reconstruction of Zhoushan Port wharf and Shenzhen seawall.

In addition, the new low carbon cement clinker of sulfur silicate has solved the problem of high temperature coexistence and conflict of multiple low calcium mineral phases, overcome the international technical bottleneck of industrial one-time firing, and take the lead in realizing industrial production demonstration on 500 t/d new dry cement kiln; Compared with Portland cement clinker, the clinker CO2 emission is reduced by more than or equal to 25%, and the energy consumption is reduced by more than or equal to 10%.

Ultra-low emission transformation is the main content of social responsibility of cement enterprises. At present, our cement enterprises are facing enormous difficulties. In this severe economic situation, we still need to invest in ultra-low emission technology transformation. I still suggest that cement entrepreneurs should take a long-term view in the ultra-low emission transformation. According to their own conditions, they should choose the technical route suitable for their own enterprise conditions and stop taking detours. Especially for the technical route selection of cement kiln tail out-of-stock, the technology with long-term and reliable operation, low ammonia escape and long service life of catalyst must be selected.

Drying mainly includes belt drying, rotary drying and flash drying, which should be selected according to the characteristics of alternative fuels and the heat source in the plant.

Pyrolysis uses the heat of the hot raw material itself to heat the alternative fuel, and then sends it to the decomposition furnace for combustion, which improves the fuel efficiency and denitrification effect. The

commonly used gasifier is fluidized bed. Foreign cement enterprises first used CFB gasification in 1995, which has the functions of high combustion efficiency, coordinated denitrification and impurity discharge, but the complete gasification equipment is large and the heat and power consumption is high. The Institute of Engineering Thermophysics of

the Chinese Academy of Sciences has developed the activation technology of alternative fuels. After partial gasification, the alternative fuels are sent to the decomposition furnace for combustion, which achieves high combustion efficiency, coordinated denitrification and impurity discharge, reduces the scale of equipment and investment costs, and reduces the increase of heat and power consumption.

From the point of view of enterprises, the total carbon emissions of cement enterprises show a downward trend in most enterprises, and Chaoke Cement still has a significant growth. Overseas enterprises contribute more to the substitution of raw materials and fuels.

In the future, Ormond Group will continue to provide customers with high-quality products and services with the technology and experience accumulated over the past century. Continuously innovate, promote technological progress and contribute to the development of the industry. The concept of "housekeeping" service will be carried out to the end to help customers achieve productivity improvement and sustainable development.

of Shijing Science and Technology uses steel slag to capture and solidify CO2 in flue gas of steel, cement and power industries. Olves the problem of the stability of the steel slag and realizes the resource utilization of the solid waste. The prepared carbon fixation auxiliary cementing material can be used as a novel carbon fixation high-quality admixture for cement production. Realize the substitution of low-carbon cement production and related products, prepare carbon fixation high-efficiency composite admixture in cooperation with other low-cost industrial solid wastes, replace mineral powder in concrete production, and improve the performance and quality of concrete.

, Luzhong Refractory has introduced the only hercynite reaction sintering synthetic material at home and abroad, which has opened the process of chromium-free cement in China. In addition, Luzhong Refractory 5S Super Thermal Insulation Material has been applied to many cement and alumina rotary kilns in China, and the cylinder temperature has been reduced by more than 100 C compared with the same period last year. However, the application of other materials and technologies at home and abroad shows that the cylinder temperature can only be reduced by about 30 ℃.

Dongfang Measurement and Control Intelligent Engineering has brought remarkable benefits to enterprises. 1. Improve the utilization rate of mineral resources and prolong the service life of mines; 2. Promote visualization and informatization simultaneously to realize fine management; 3. Save energy, reduce consumption and reduce emission to reduce the pressure of carbon emission for enterprises; 4. Improve the level of enterprise informatization and intellectualization to realize green factories; 5. Control the quality of the whole process of cement production; 6. The production process was unmanned and less manned, and the production posts were streamlined; 7. The production efficiency and equipment commissioning rate were significantly improved. According to

https://img7.ccement.com/news/2509/richtext/img/zsboxcleuag1758633637417.

Li Xiang, Castables are prone to wear, burst and other problems in the use of key parts, non-standard construction, drying and baking lead to more unstable service life, unable to hit the industry's advanced indicators of five-year service life outside the kiln.The ceramic material has high strength and high corrosion resistance in a high-temperature environment, the tensile strength of the titanium-aluminum alloy fiber is high at a long-term service temperature of 1,450 deg C, and the content of the steel fiber of the titanium-aluminum ceramic material is as high as 30%, so that the problems can be perfectly solved.

In addition. Compared with the calcium silicate plate, the nanometer material enables the thinner nanometer thermal insulation material to have better cooling effect, reduce heat loss and have remarkable energy-saving effect. At that same shell temperature, the use thickness of the nano plate can be greatly reduced, and when the nano plate is use in a decomposing furnace, the volume of the decomposing furnace can be increased, and the yield can be improved.

The platform realizes the visualization of the whole process of production, management and transportation, and a screen overview, so that enterprise managers can grasp the overall operation in real time. At the same time, the intelligent early warning system can automatically identify abnormal situations and alarm, timely disposal of closed-loop management, effectively improve management efficiency and emergency response capabilities.

Chen Deyu pointed out that through digital transformation, the cement industry will transform from "grey manufacturing" to "green intelligent manufacturing", from "large energy consumers" to "energy-saving pioneers", and from "pollution sources" to "environment-friendly enterprises". Digitalization enables green transformation and intellectualization leads the future of the industry. The whole industry works together to create a new ecology of green, intelligent and sustainable cement industry, contributing to the realization of the goal of "double carbon" and promoting the high-quality development of the industry.

Ma Enqun believes that in view of the flue gas treatment under some special working conditions in the cement industry, the filter material of the dust collector should be upgraded to meet the needs of "energy saving and emission reduction" and prolong the service life.

In the future, for some ultra-high temperature and harsh dust removal parts of flue gas, such as ultra-high temperature dust removal before high temperature and low dust SCR denitrification, bypass dust removal, conventional high-temperature filter materials can not meet the requirements of application scenarios, and South Glass Institute is also continuing to develop and develop special filter materials for such special working conditions. Look forward to the future to help customers solve the difficult problems in the practical application process.

Gao Yuzong said that 1.6 tons of cotton stalks = 1 ton of coal, burning 1 ton of cotton stalks can reduce emissions. 1. Gao Yuzong believes that cotton stalks are broken and burned directly. Under the microscope, cotton stalks are porous materials, which are very flammable when the temperature and oxygen are appropriate. Cotton stalks burn quickly and can release heat accurately and steadily. It is not recommended to dispose of cotton stalks in the form of particles, which not only greatly increases the cost, but also causes uncontrollable combustion and dust problems in the production process.

The system can be widely applied to industries such as cement, fertilizer, feed, grain and the like, and can effectively solve a series of problems faced by enterprises of bagged materials such as cement and the like, such as large dust on a loading site, easy occurrence of occupational diseases, high pressure of environmental protection management, high labor intensity of manual loading, difficulty in recruiting workers, high cost and the like.

of oxygen-enriched combustion mainly comes from compressed air, Zheda Super Level I Energy Efficiency Intelligent Air Compression Station, which has digitalization (digitalization of life cycle management and control of compressed air system), visualization (comprehensive visualization of energy efficiency, energy consumption, well-being and carbon emission), intellectualization (multi-link, multi-equipment, multi-working condition, multi-factor and multi-process). High efficiency (high efficiency of main engine, integration of gas and water, optimal system energy efficiency) and other advantages. The average standard coal consumption of a

project before adopting Zheda oxygen-enriched combustion technology is 103.3kg/t. C, and the average standard coal consumption after oxygen-enriched combustion is 98.2kg/t. Cl. Coal saving: 5.1 kg/t.

In contrast, The low-speed direct-drive permanent magnet motor drive system developed by Rizhao Dongfang has high power factor (0.95 ~ 0.

Guo Hongjun said that the successful transformation of the above 10000-ton line shows that all production lines can greatly increase production, reduce consumption and reduce resistance without expanding the diameter and volume of the decomposition furnace, the size and diameter of the preheater and the increase of the primary preheater. It also shows that the burner with advanced structure can not give full play to its excellent performance if it can not adopt advanced calcination system and operate correctly. It verifies again that there is a large optimization space for the quenching structure of the fourth generation grate cooler.

Shandong Coley's solution relies on the upgrade of the storage and transportation system and the metering and pre-combustion system to solve the problems of material blockage, flow fluctuation, serious dust, insufficient combustion and impact on kiln conditions in the transportation process, so as to realize the reliable control of the whole process of fuel from transportation to combustion.

by Wuhan Lanhaiyan Intelligent Loading Equipment Co., Ltd. integrates machinery, electricity, vision and AI, and can automatically load bagged products onto vehicles of various specifications, which can completely replace manual loading. It can also connect with the enterprise ERP management system to realize the unmanned and paperless sales and loading links.

Haokai metal filter bag and alkali-free glass fiber membrane filter bag have excellent performance in high temperature resistance, thermal stability, fire retardant, filtration accuracy and other aspects, effectively solving various problems of ultra-low dust emission in cement enterprises. According to

https://img7.ccement.com/news/2509/richtext/img/u7m58w9mfpc1758633793663. Huang Guobao, The Opinions on Promoting the Implementation of Ultra-low Emission in Cement Industry points out that mature and applicable environmental protection technologies should be selected according to the conditions of the plant. To strengthen source control, cement kilns are equipped with low-nitrogen burners, low-nitrogen combustion technologies such as staged combustion and fine control of oxygen content in other decomposition furnaces are adopted, and combined denitrification technologies such as selective non-catalytic reduction (SNCR) and selective catalytic reduction (SCR) are adopted for kiln tail waste gas. The special flat-plate denitration catalyst

for Puli Environmental Cement has good anti-clogging performance, which can minimize the operation frequency of rake-type soot blower and reduce the operation cost. It has strong resistance to alkali-earth/alkali metal poisoning. It has good wear resistance and ensures stable operation for a long period.

a cement plant before and after it was put into operation, the coal saving amount of the firing system is 14.1 t/h-13.1 t/H = 1. Coal saving rate 7.

Due to the lack of industry standards and design specifications for the application of oxygen-enriched combustion technology in cement industry. At present, CFD numerical simulation technology is an effective means (the only one) to determine the oxygen consumption scheme and oxygen production scheme.

It is understood that," The product released this time is a revolutionary achievement, which embodies the seven-year research and development efforts of Ormond's global engineering team, completely changes the limitations of traditional traction mode by adopting innovative driving and chain structure design, and achieves major breakthroughs in key dimensions such as energy efficiency improvement, safety enhancement and adaptability to complex working conditions. It provides a new solution for the upgrade of material conveying efficiency and operation stability in the cement industry.

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