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Gao Dengbang called on cement enterprises to actively participate in the cause of double carbon, dare to explore, dare to innovate, and be aggressive. While carrying out the mission of double carbon, it will transform the pressure of environmental protection into green power, and promote enterprises to achieve new breakthroughs in the transformation and development. The industry should closely integrate the development of enterprises with the concept of building a community of human destiny, achieve deeper mutual benefit and win-win situation, and help the cement industry achieve higher quality and sustainable development.
Conch Focus on Carbon Reduction Action.". After the national "double carbon" goal was put forward, it immediately formulated and implemented the carbon peak, carbon neutral action plan and the "14th Five-Year Plan" energy saving and carbon reduction plan, and defined six specific carbon reduction paths and group carbon neutral road map, including energy saving and consumption reduction, fuel substitution, raw material substitution, carbon capture and utilization, and plant carbon sequestration. Conch plans to take the lead in achieving carbon neutrality for its subsidiaries in the eastern region by 2050; by 2060, non-fossil energy consumption will reach more than 80%, and the whole group will achieve carbon neutrality.
Conch will focus on tackling key scientific and technological problems of carbon emission reduction. To give full play to the comprehensive advantages of "industry-university-research fund", Anhui Cement Carbon Capture and Conversion Application Innovation Consortium, one technology innovation center and four joint laboratories for energy saving and carbon reduction have been jointly established, and three carbon research institutes and China Carbon Company have been established, thus forming a "double-carbon" R & D and transformation system of "multi-linkage and collaborative innovation".
At present, Conch is relying on the above innovation system to accelerate the research and development of more cutting-edge carbon emission reduction technologies from the aspects of source emission reduction, process emission reduction and end emission reduction, and has also harvested a number of major scientific and technological innovations such as carbon capture, purification and utilization of cement kilns, carbon dioxide energy storage, etc. Some technologies are the first in China and even in the world.
This conference will bring together many experts, scholars and business representatives in the industry, focus on the core issues of low-carbon development and green upgrading in the cement industry, discuss the application of energy efficiency improvement and energy-saving and carbon reduction technologies, and how the cement industry can use the carbon trading mechanism to promote its own low-carbon transformation, which will inject strong impetus into the development of the industry.
In recent years, China Cement Network has also actively exerted its platform advantages, relying on digital services such as cement big data and industry "brain", to provide all-round support for the green development, digitalization and low-carbon transformation of the industry, and to work hand in hand with the industry. In
2023, we also launched the photovoltaic digital new energy sector, focusing on building a new energy industry big data platform, covering photovoltaic, hydrogen energy, energy storage and other new energy fields, providing industry information, market index, industry reports, project industry big data and other services. The integration of new quality productivity and traditional productivity is an important issue for the next development of the industry.
Here, I call on all guests and delegates to take this conference as an opportunity to actively exchange, discuss and cooperate with each other, so as to contribute wisdom and strength to the green transformation of the cement industry. Let us work hand in hand to practice the concept of green development and promote the green transformation of the industry.
In view of the ultra-low emission of the cement industry, Li Jian put forward three suggestions:
1. Overall planning of ultra-low emission and pollution reduction and carbon reduction transformation, from the perspective of the whole process control, through multi-dimensional analysis, overall planning of the whole process, all-factor diagnosis, optimization of the whole process, intelligent control and digital management and control. To explore the optimal meeting point of carbon emission reduction synergy under ultra-low emissions.
2. Time is subject to quality, and the transformation is completed with high quality. Seek truth from facts from top to bottom and strive for "four truths". That is, the leaders really attach importance to it, the capital is really invested, the project is really implemented, and the management level is really improved.
3. Enterprises carry out evaluation and monitoring in strict accordance with the requirements, and enterprises and evaluation institutions form a joint force to achieve "true" standards.
1. The cost of quota clearance. Cement production is a high carbon emission industry. With the promotion of the carbon market, enterprises need to purchase carbon emission rights for the part exceeding their own carbon emission quotas, which will increase the operating costs of enterprises. For example, if the carbon price is 100 yuan/ton, and a cement enterprise's annual carbon emissions exceed the quota by 100000 tons, then the enterprise needs to spend an additional 10 million yuan per year to buy carbon quotas.
2. The cost of technological upgrading and transformation. In order to reduce carbon emissions, enterprises need to upgrade and transform production equipment and processes, such as adopting new energy-saving equipment and improving production processes. These technological upgrades and transformations require a large amount of capital investment, and the return on investment cycle may be long. For example, the construction of waste heat power generation systems and carbon capture, utilization and storage (CCUS) projects require huge financial support.
3. For the cost of energy transformation, cement enterprises may need to increase the use of clean energy, such as purchasing green power, but the cost of green power is relatively high at present, which will also increase the energy cost of enterprises. Ye Jiayuan, Vice President of Cement New Materials Institute of
China Building Materials Research Institute, presented the Technical Path and Prospect of Low Carbon Development in Cement Industry and pointed out that the key technologies for carbon reduction in China's cement industry in the future will mainly include: high energy efficiency firing, high efficiency grinding (roller press final grinding) technology and equipment; low carbon cement system development, preparation and application technology; Key technologies for pretreatment and calcination of alternative fuels (biomass) in cement kilns; key technologies for oxy-fuel combustion and CO2 capture and utilization in cement kilns; key technologies for burning zero-carbon energy such as hydrogen energy into cement clinker;
In view of the carbon neutrality of the domestic cement industry, Ye Jiayuan put forward five suggestions:
1. Find out the family background accurately and strengthen the data base (get rid of the dependence on foreign data);
2. Improve the standard and accounting verification system, which is scientific, objective, fair and equitable; 3;
3. Multi-industry collaboration to find a reasonable and economical way out for massive CO2 ;
4.The energy structure must be changed as soon as possible to support the zero carbon emission of energy in cement industry;
5.
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Wu Xiaomei also put forward four considerations:
(1) Alternative fuels, Alternative raw materials and co-disposal are effective measures for cement industry to reduce carbon emissions, transform the industry green and assume more social responsibilities, which not only have social benefits, but also have certain economic benefits. Cement production enterprises should actively create conditions for implementation.
(2) After the use of alternative fuels, the standard coal consumption of clinker decreases and the total heat consumption increases. How to increase the decrease of standard coal consumption and reduce the increase of total heat consumption is a problem that cement production enterprises should seriously consider. This is related to many factors, such as the quality and quantity of alternative fuels, the process equipment conditions of cement kilns, the performance and quality of cement products, etc. Cement production enterprises should make reasonable positioning and take corresponding measures according to their own process equipment conditions, the characteristics of alternative fuels available, safe and continuous operation of production, emission up to standard and product quality and safety. (For example, the problem of chloride ion balance or direction)
(3) The situation of alternative raw materials or co-disposal of solid hazardous waste is more complex, so it is necessary to understand the nature of the solid hazardous waste disposed, where is the "danger" and "harm"? In the process of application, we should first pay attention to the influence of conventional volatile components such as alkali, chlorine and sulfur on the production and product quality, and the influence of fluorine and phosphorus components on the setting time, and make good use of the improvement of various trace components brought by them on the burnability of raw meal, and reduce their negative effects by adjusting the clinker modulus value and other means, so as to play their positive role as far as possible.
(4) The alternative fuels, alternative raw materials and solid hazardous wastes for co-disposal that can be used by cement enterprises are changeable, so the production control technology should be flexible and changeable, and the automatic control and intelligent adjustment in this respect also need to be put on the agenda.
Zhai Guanjie said that compared with traditional cement production technology, The production technology of geopolymer cement with fly ash as raw material has the following characteristics:
1. Normal temperature and pressure production, no high temperature roasting process, simple operation.
2, no three wastes, no PM2.5 dust emission, production of 1 ton of geopolymer cement, the whole process emission is less than
0.3, low cost, high strength, significant energy saving and emission reduction effect, strong technical universality, wide adaptability of raw materials. The characteristics of geopolymer
cement can be summarized as "one solid, two high, three resistant and four resistant"
. One solid: solid sealing + bonding heavy metal and radioactive waste (molecular sieve + chemical bond)
. Two high: high strength. High density (24-hour compressive strength up to 20-100MPa)
Three resistance: acid corrosion resistance, weathering resistance, high temperature resistance (1750 ℃)
Four resistance: freeze-thaw resistance, salt corrosion resistance, radiation resistance, (steel) corrosion resistance.
the core elements of the national carbon market trading system include:
trading platform National carbon emissions trading institutions are responsible for organizing and carrying out centralized and unified trading of carbon emissions throughout the country;
trading entities: key emission units and institutions and individuals that meet the relevant trading rules of the state;
Transaction type: carbon emission quota (CEA), the Ministry of Ecology and Environment may add other transaction products in accordance with relevant national regulations;
transaction mode: listing agreement transaction: the maximum declared quantity of a single transaction shall be less than 100,000 tons of carbon dioxide equivalent; Bulk agreement trading: the minimum declared quantity of a single transaction shall not be less than 100,000 tons of carbon dioxide equivalent;
trading time: listing agreement trading: 9: 30-11: 30 and 13: 00-15: 00 every Monday to Friday; bulk agreement trading: 13: 00-15: 00 every Monday to Friday.
Li Jin suggested that enterprises should establish cross-sectoral carbon asset management teams, including internal carbon asset management system and decision-making system, cross-sectoral coordination mechanism-energy, legal, financial, compliance, trading and other teams; open trading accounts, registration accounts, bank accounts; To formulate a carbon asset management strategy in line with their own reality, which should include management objectives, management measures, management processes and so on.
online is the control of each link based on the online analyzer to improve stability." Reduce fluctuations. Pecially the improvement of stability brought by the cement batching analyzer, the reduction of fluctuation and the cost reduction brought by the reduction of clinker consumption.
Intelligence is to replace artificial intelligent control with intelligent equipment and intelligent system.
Fusion is the fusion application of software-based business and data.
Miao Runkang also pointed out that the benefits brought by intelligent factories include: 1. Improve the utilization rate of mineral resources and extend the service life of mines; 2. Promote visualization and informatization simultaneously to achieve fine management; 3. Save energy, reduce consumption and reduce emissions, and reduce the pressure of carbon emissions for enterprises; 4. Improve the level of enterprise informatization and intellectualization to achieve green factories; 5. Achieve quality control of the whole process of cement production; 6. Achieve unmanned and less people in the production process, and streamline production posts; 7. Significantly improve production efficiency and equipment commissioning rate.
In 2022, Shijing Science and Technology cooperated strategically with a cement plant in Henan Province to build the world's first steel slag capture cement kiln flue gas CO2 production line for carbon sequestration auxiliary cementitious materials and low-carbon cement, with an annual output of 300000 t ons of carbon capture steel slag. CO2 capture utilizes about 1.
The titanium-aluminum ceramic composite material combines the characteristics of high strength and high corrosion resistance of a ceramic material in a high-temperature environment and high tensile strength of a titanium-aluminum alloy fiber at a long-term service temperature of 1450 deg C, and has the advantages of a metal material and a ceramic material.
The microcrystalline ceramic material is prepare by sintering large crystal petroleum coke silicon carbide as a main raw material at that high temperature of 1500 deg C, can resist wat cooling destructive tests at the temperature of 1100 deg C for more than 50 times, has strong adaptability, can resist acid and alkali erosion at high temperature, doe not chemically react with materials, has low porosity and smooth surface, and is not easy to adhere to the materials; The nano thermal insulation material with that abrasion Los of 0.
5% can reduce the use thickness of the nano plate to a large extent under the same shell temperature; when the nano thermal insulation material is use in a decomposing furnace, the volume of the decomposing furnace can be increased, and the yield can be improved; and compare with a calcium silicate plate, the thinner nano thermal insulation material can achieve a better cooling effect, the heat loss is reduced, and the energy-saving effect is remarkable.
Gold high-grade spinel bricks have outstanding corrosion resistance, thermal stress resistance, penetration resistance, kiln skin adhesion, mechanical and thermal stress resistance, which effectively eliminates the impact of co-processing on cement kilns.
of Zhuji Hechuang Electric Machinery Co., Ltd., shared "Energy-saving transformation and application of permanent magnet direct-drive motor system in cement industry". Li Jiahui said that the common characteristics of cement equipment transmission chain are as follows: 1. Long equipment transmission chain: low transmission efficiency. Heavy structure 2. Main object of equipment maintenance: gear related equipment 3. It replaces the traditional driving form of "asynchronous motor + hydraulic coupler + reducer", simplifies the transmission chain, and increases the reliability and economy.
The permanent magnet direct-drive motor has the advantages of high efficiency and energy saving, low speed and high torque, environment friendliness, low maintenance cost, compact structure, small volume and digital monitoring.
Liu Hanqing believes that the traditional dust removal equipment can not effectively remove the flocculent dust of alternative fuels. Suzhou Aikin flocculent dust removal unit can be a good solution to the problem of flocculent dust of alternative fuels. So far, Suzhou Aikin has been involved in Sinoma Environment, Red Lion Cement, Huaxin Cement, Conch Cement, < a href = "https://price.ccement.com/brandnewslist-1-1000068.".
