The cement industry has broken a new path in adversity by tapping the potential of energy conservation and energy transformation and upgrading.

2023-07-08 14:37:05

Under the predicament, we should seek a new way out for the development of cement industry.

The situation of cement

market downturn and overcapacity is still grim. Under the situation of imbalance between supply and demand, complacency has been unable to support enterprises to base themselves on the current complex market situation. Energy saving and carbon reduction, cost reduction and efficiency enhancement, industrial transformation and upgrading, optimization of asset allocation and enhancement of core competitiveness can maintain the healthy and long-term development of the cement industry.

Recently, the National Development and Reform Commission and other departments issued the Benchmarking Level and Benchmarking Level of Energy Efficiency in Key Industrial Areas (2023 Edition), and the development direction and objectives of energy saving and consumption reduction in cement clinker and other fields were once again clarified. The cement industry has entered the stage of deeply tapping the potential of energy conservation, and enterprises have also accelerated the pace of promoting technological transformation projects, and started from expanding the application of photovoltaic, energy storage and other technologies, promoting the transformation of green electricity and alternative fuels instead of traditional energy, constantly looking for key breakthroughs to enhance comprehensive strength and market competitiveness.

In order to help enterprises save energy, reduce consumption, improve quality and increase efficiency, and promote the high-quality development of cement enterprises, China Cement Network held the "2023 China Cement Energy Conservation and New Energy Development Conference" in Chongqing on July 6-7, inviting government leaders, industry technical specialist, scientific research institutions, universities, cement enterprises and equipment suppliers, etc. Explore new ways of energy saving and consumption reduction in cement industry. The theme of this

conference is "energy saving and cost reduction, green energy helps to improve quality and efficiency". Chairman of Sichuan Cement Association, , At present, the

cement industry is facing great uncertainty, and the healthy development of the cement industry is restricted by the continuous bottoming of real estate, the pressure of high inventory, the aggravation of overcapacity and the continuous decline of prices. Xiong Ke, Secretary-General of Chongqing Cement Association, said that the industry is also facing the pressure of tightening energy efficiency standards and emission standards, and the pressure of carbon emission reduction. In particular, the cement industry will soon be incorporated into the national carbon trading system. It is urgent for the cement industry to make more substantive breakthroughs in the field of carbon emission reduction. These problems and pressures need to be solved and resolved by the wisdom of cement workers.

, Bo Kegang, Secretary of the Party Committee and President of Southwest Cement Co., Ltd., also said at the meeting that we should constantly tap the potential of energy saving and consumption reduction from within the enterprise and reduce the comprehensive cost in order to tide over the difficulties.

In the future, cement plants will change from "quantity" competition to "quality" competition, and realize the survival of the fittest in the fierce competition.

energy saving and carbon reduction, As the largest energy consumption industry in the building materials sector,

cement will produce about 1.43 billion tons of clinker in 2022, and the coal consumption will exceed 1. The carbon dioxide produced by the cement industry will account for about 7% of global emissions. The emission of CO2 from cement industry in China accounts for about 12-14%, ranking the third in the country.

The cement industry has a great responsibility in energy conservation and carbon reduction. Zhang Shuangqing, senior engineer of the National Energy Solar Power Research and Development (Experimental) Center, said that the carbon emission sources of the cement industry mainly include: raw materials (process emissions), fuel (combustion emissions) and electricity consumption (indirect emissions). How to improve the energy efficiency level of cement industry and reduce carbon emissions has always been an important task for the industry to achieve high-quality development, but also an important guiding point of policy.

is to upgrade energy-saving technology and equipment. The technical transformation of preheater, fan, motor frequency conversion and kiln burner is carried out to save electric energy and improve the combustion speed of pulverized coal.

The third is to build an energy management and control center to monitor and control all energy-using equipment in each production process, and to refine the analysis of energy use.

Fourth, vigorously promote the co-disposal of solid waste, cement kiln co-disposal of domestic waste, municipal sludge, hazardous waste, etc., to improve the fuel substitution rate.

Gao Yuzong pointed out:" The difficulty of the alternative fuel technology scheme lies in the mode of collecting and storing biomass. The key point is that the type of furnace used to incinerate biomass depends on the type of long-term main disposal.

In fact, the cement industry is not only a simple traditional building materials manufacturing industry, but also a future ecological industry with environmental protection, energy transfer and other functions. Cui Cheng, a researcher at the Macroeconomic Research Institute of

the National Development and Reform Commission, said that the proportion of renewable energy in China's primary energy consumption is not high, but non-water renewable energy such as wind power and photovoltaic power is growing rapidly, and the demand for energy storage regulation will be growing.

Distributed photovoltaic has broad prospects. First, the filing procedures of industrial and commercial distributed photovoltaic are simpler, the voltage level is lower and it is not controlled by the index scale. Second, industrial energy consumption is constrained. Third, the rate of return is higher. Fourth, tax incentives.

At the same time, the construction of new energy projects also needs attention. Cui Cheng said that wind, solar, energy storage, hydrogen, ammonia, high-temperature gas-cooled reactor, small reactor, CCUS and other future technologies are highly uncertain; it is extremely necessary to strengthen R & D and demonstration, but it is not appropriate to carry out construction everywhere; different stages have different characteristics, so it is necessary to make overall strategic consideration. Special attention should be paid to the sunk cost of existing equipment and personnel transfer; early transformation or merger and acquisition of similar industries is a favorable way.

In addition to projects such as photovoltaic energy storage, turning buildings into micro-power plants (urban emergency power systems) is also one of the trends of the industrial revolution. The development of BIPV helps to achieve carbon peak and carbon neutralization, and the potential market scale will reach 1.7-3. Pan Jingong, general manager and doctor of Chengdu CNBM Photoelectric Materials Co., Ltd., introduced that cadmium telluride power generation glass has strong light absorption ability (absorbing 94% of visible light), which can solve the light pollution of glass curtain wall; the cost is low (the material is 2 microns thick), and the direct bandgap semiconductor cadmium telluride; Curtain walls are profitable (create economic value), indirect band gap semiconductor crystalline silicon. The development of cadmium telluride power generation glass has solved four major problems in the domestic industrial field, namely, the purification of elemental materials, the preparation of semiconductor alloys, the development of coating processes, and the design of complete sets of equipment.

Taiwan Cement Co., Ltd. said at the meeting that after the launching ceremony of the intelligent mine project, from November 8, 2022 to the present, it has been running for more than six months, totaling more than 2000 hours. The application of driverless technology of new energy pure electric mine car has reduced the number of mining workers and increased the production efficiency by 4%, which is better than driverless production efficiency in the same period. At the same time, compared with fuel vehicles, electric mine vehicles have obvious advantages in power cost and maintenance cost, and the transportation cost of limestone in mines is significantly reduced.

< IMG SRC = "The clarion call for energy conservation, carbon reduction, transformation and upgrading of https://img7.ccement.com/richtext/img/bp223s7r9pp1688719474397. has been sounded, and enterprises that hesitate will eventually be abandoned by the times.". Next, we believe that with the joint efforts of colleagues in the industry, the cement industry will continue to make breakthroughs on the road of energy saving, carbon reduction and new energy transformation and upgrading. < a href = "https://price.ccement.com/brandnewslist-1-1000021.".

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Under the predicament, we should seek a new way out for the development of cement industry.

2023-07-08 14:37:05