水泥厂智能控制经济效益知多少?浙大教授精彩剖析

2023-11-11 13:21:23

对水泥行业来说如何选择使用智能控制系统呢?

近年来,水泥行业不断依托数字化、智能化手段提质增效、节能减排,加速实现水泥“智造”。那么水泥工业智能控制总体处于什么水平?又能给水泥企业带来多大效益呢?对此,中国水泥网采访了浙江大学控制系教授朱豫才。

“水泥厂做好智能控制经济效益很明显,不仅可以节煤节电分别为1%-5%,还能提高整个生产过程安全性和稳定性。”朱豫才表示,不过中国水泥行业的智能化还处于起步阶段,全国的熟料水泥生产线已做智能控制的生产线只有一百多条,占比不超过10%。

朱豫才认为,做智能控制基本的要求是要先达到自动化水平,但全国90%的熟料生产线都达不到先进自动化生产水平,还存在不少问题。

据了解,目前在水泥行业见到的智能操作系统主要有PID、专家控制系统、模型预测控制系统等,对水泥行业来说如何选择使用智能控制系统呢?

朱豫才表示,PID是单变量的控制方法,而水泥生产系统是受煤、风、料等多因素影响,在水泥厂使用效果并不好,所以很多人也都不用了。专家控制系统是把一个有经验的师傅计算机化,然后代替有经验的人,这样会比一些没有经验的操作者好一些。然而实际上,专家无法定量描述自身所具备的经验,很难准确计算机化,所以这种专家控制系统在国内做了三十年还不是很成功。

“模型预测控制系统是先通过系统辨识的方法建立起一个模型,也叫传递函数矩阵,然后再基于这个模型对装置的未来走势进行在线预测,然后再制定控制方案。”朱豫才介绍,目前这种控制技术在石化和化工行业应用比较普及。

据朱豫才介绍,对水泥厂来说,模型预测控制系统上线后,原来生产系统波动大的节能减排空间很大,原系统比较稳定的节能减排幅度较小。

“分解炉温度波动30-40度,我们就可以节煤3%-5%。如果波动在10度,节煤也会有1%左右。”朱豫才称,模型预测智能操作系统用好了节煤节电都在1%-5%,按照日产五千吨生产线计算每年能节约400万元-800万元。“为了发挥模型预测控制技术的潜力,建议安装烟室气体分析仪、窑内温度测量等在线检测仪器。如果能够安装生料和游离氧化钙在线分析仪,效果更佳。”朱豫才建议。

为此,中国水泥网将于2023年11月29日,在杭州举办以“数据驱动决策 智能引领未来”为主题的“第五届中国水泥智能化高峰论坛”。届时特邀浙江大学朱豫才教授做《水泥生产线的模型预测控制与运行优化》主题报告,欢迎大家积极参会交流探讨,共同推动水泥行业的智能化进程。

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At the meeting, Yan Haochun brought the theme report "Dream of Blue Sky: Exploring the Green Footprint of Cement Industry in the Context of Carbon Market". She pointed out that the cement industry faced the risk of rising costs in the context of the carbon market.

2024-11-01 16:10:56

Li Jian suggested that from the perspective of overall planning of ultra-low emission and pollution reduction and carbon reduction transformation, through multi-dimensional analysis, overall planning of the whole process, diagnosis of all factors, optimization of the whole process, intelligent control and digital management and control, the optimal fit point of carbon emission reduction under ultra-low emission should be explored.

2024-10-30 16:20:00

Based on the market situation of the cement industry and the demand for high-quality and low-carbon development of Conch Cement, Conch will strengthen the research and development of technologies such as energy saving and carbon reduction, green environmental protection, clean energy and low-carbon cement. The main research directions of Conch's scientific and technological innovation in the future are as follows: 1. Research and development project of raw material and fuel substitution in the cement industry; 2. Research and development project of cement clinker quality improvement; 3. Energy-saving and carbon-reducing technical equipment R & D project; 4. Clean and green energy R & D and manufacturing project; 5. Future carbon technology industry exploration project.

2024-10-29 16:34:25

On October 24, the "2024 China Cement Double Carbon Conference and the 12th Energy Conservation and Environmental Protection Technology Exchange Conference" was held in Wuhu, Anhui Province. Gao Dengbang, President of China Cement Association, Zhu Shengli, General Manager of Anhui Conch Group Co., Ltd., Lv Zhijian, President of Xinjiang Building Material Industry Association, Ma Weiping, Chairman of OCC, Jiang Dehong, Vice President and Chief Engineer of Tianshan Materials Co., Ltd., Li Jian, Associate Researcher of Chinese Academy of Environmental Sciences, Fan Yueming, Professor of South China University of Technology, Zhuge Wenda, Chairman of Leishan Cement Co., Ltd., Century Xinfeng, Hubei, Yan Haochun, Technical Director of China National Inspection and Testing Holding Group and General Manager of Certification and Evaluation Center.

2024-10-24 16:55:38

Eliminating backward and inefficient production capacity is one of the important measures for the structural adjustment, transformation and upgrading of the cement industry, as well as the needs of the enterprise's own development. Generally speaking, this will help the cement industry to promote structural optimization, improve production efficiency, reduce resource consumption and enhance brand image, and will also have a positive impact on the green development and competitiveness of the industry.

2024-10-15 10:17:37

In the first half of 2024, Conch Cement earnestly implemented the relevant policy requirements of national carbon peak and carbon neutralization, and orderly promoted the implementation of carbon emission reduction projects in accordance with the company's medium and long-term carbon emission reduction route. As of August 2024, Conch Cement has built 27 state-level green factories and 44 green mines. In addition, Conch Cement vigorously develops photovoltaic, wind power, energy storage and other projects, and the installed capacity of green energy is nearly 900 MW.

2024-10-14 14:12:16

"The project relies on the national technology center of Conch Group and the joint innovation system of" one center, multiple platforms ", and uses high-efficiency cement grinding AIDS to reduce the amount of cement clinker, and the process is in the leading level in the world." Wang Peilin, deputy general manager of the company, introduced that the project uses advanced technologies such as mobile Internet of Things to improve production efficiency. It is estimated that it can reduce electricity consumption by about 23.8 million degrees per year, save 2925 tons of standard coal per year, and reduce carbon dioxide emissions by 7925 tons per year. The effect of energy saving and emission reduction is in the forefront of the industry.

2024-09-29 15:03:33

By 2027, the energy consumption of more than 30% of cement production lines will be better than benchmark level, and all production lines in the industry will reach the benchmark level of energy efficiency standards. More than 70% of cement enterprises have achieved a high degree of automation in the whole production process, and the proportion of enterprises with digital transformation maturity level 3 or above has reached more than 20%, and the level of greening and digitalization of the industry has been significantly improved.

2024-09-23 10:29:16

Technological innovation is the engine of low-carbon transformation and development of cement industry. In recent years, Century Xinfeng Group has transformed and developed agricultural modernization projects based on building materials, and Hubei Zhongxin Kaiwei Modern Animal Husbandry Project in the agricultural modernization sector produces a large amount of manure every day. Zhuge Wenda, the chief scientist of Century Xinfeng Group, personally designed and guided the implementation of the collaborative utilization process of Hubei Zhongxin Kaiwei Modern Animal Husbandry and Century Xinfeng Leishan Cement Plant to dispose of resources harmlessly and build a closed-loop industrial chain around modern agriculture, which has achieved remarkable results and formed its own unique competitiveness and new development advantages.

2024-09-15 20:08:57

On September 13, the Shanxi Provincial Department of Industry and Information Technology issued the Announcement on the Demolition of Capacity Withdrawal Equipment of Witton Cement Group Co., Ltd. The announcement shows that according to the relevant provisions of the Ministry of Industry and Information Technology's "Measures for the Implementation of Capacity Replacement in the Cement and Glass Industry", the acceptance and confirmation of the Xinjiang County Bureau of Industry and Information Technology, the Yuncheng Bureau of Industry and Information Technology, and the expert verification procedures. One Φ3.2m × 50m rotary kiln and two Φ4.0m × 60m rotary kilns have been removed from the main equipment of the withdrawal production line of the digital intelligent green factory technical transformation project of Witton Cement Group Co., Ltd.

2024-09-14 16:36:41

In order to make preparations for being incorporated into the national carbon market, we should actively establish and improve the dual-carbon planning system, management system, system, innovation system, trading system and capacity system, do a good job in the research of dual-carbon policy, find out the family background, consolidate the quality of data, decompose and implement the goal of carbon reduction, and strive to achieve the goal of carbon reduction. We will continue to promote the substitution of raw materials, the transformation of energy consumption structure, the acceleration of technological innovation, the promotion of green manufacturing and intelligent leadership, and the coordinated promotion of carbon reduction, pollution reduction and green expansion. Growth.

2024-09-13 16:07:12

The semi-annual report of Tapai Group shows that in terms of operating conditions, the cost of cement sales per ton of Tapai Group is 194 yuan, down 33 yuan from the same period last year. On September 12, Tapai Group said that in recent years, cement market demand has been declining, competition has further intensified, and cement prices are low. In order to cope with the market competition, the company strengthened market research and judgment, responded scientifically and implemented precise policies, continued to promote cost reduction and efficiency enhancement, continued to streamline the organization and optimize personnel, continued to slim down and strengthen the body, lightened the burden, went into battle lightly, and paid close attention to cost control.

2024-09-13 11:55:23

Recently, the Natural Resources and Planning Bureau of Zaozhuang City, Shandong Province, issued the "Shandong United Wangqi Cement Co., Ltd. 4000t/d New Dry Process Cement Clinker Production Line and Waste Heat Power Generation Project Planning Approval Announcement". It is understood that the total investment in the technical renovation of the 4000t/d cement clinker new dry process production line project of Shandong United Wangqi Cement Co., Ltd. is 1 billion yuan. On the basis of the daily production of 2500t/d, the technical renovation of equipment has been upgraded to the 4000t/d new dry process cement clinker production line and the supporting construction of 6MWh waste heat power generation system. To realize the intellectualization, digitalization, energy saving and environmental deepening of production process and equipment level.

2024-09-02 09:58:33

We will jointly discuss and analyze the practice path of ultra-low emission in the cement industry, and promote the industry to move towards a more energy-efficient and environmentally friendly future.

2024-07-23 18:02:53

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2024-07-23 16:45:00

We will strive to build an ecological, environmentally friendly, green and intelligent garden-style factory to enable enterprises to develop with high quality through green development.

2024-07-23 15:12:33

On July 10, the promotion meeting of the 4000t/d cement clinker new dry process production line project of Shandong Lianhe Wangqi Cement Co., Ltd. was held.

2024-07-12 09:59:46

"Integrated transformation and development, overseas development, new building materials business development, traditional industry + digital innovation".

2024-07-02 10:27:00

"Wa Stone" implies the spirit of Nuwa mending the sky and the quality of five-color stone. Wei Huashan said: "The name of Queshi Group is to show the pragmatic spirit of constantly surpassing oneself, vigorous progress and down-to-earth."

2024-07-02 10:02:35

Huaxin Cement has formulated the action plan of "improving quality, increasing efficiency and emphasizing returns" in 2024, aiming at implementing the spirit of the Central Conference, responding to the initiative of the Shanghai Stock Exchange, improving the company's quality, investment value and market competitiveness, optimizing its operation and governance, actively returning investors and creating a good image of the capital market.

2024-07-01 17:06:15

Shandong Province issued the Action Plan for Upgrading the Building Materials Industry (2024-2026), which aims to promote the green, low-carbon and high-quality development of the building materials industry. The action plan focuses on the cement industry and puts forward the tasks of stable growth, structural adjustment, digital transformation, green manufacturing and safety improvement.

2024-07-01 17:05:09

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2024-06-28 17:09:41

It can be said that Zhejiang cement industry has always stood at the forefront of the national environmental protection action, demonstrating its determination and courage on the road of green development.

2024-06-28 09:55:09

Wang Jianchao believes that there are objective and subjective reasons for the current predicament of the cement industry.

2024-06-26 10:23:37

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2024-06-21 09:51:54

Energy saving and consumption reduction is not only a response to environmental responsibility, but also the only way for the cement industry to break the cocoon and enter high-quality development.

2024-06-20 16:33:57

Green is the background of high-quality development of cement industry.

2024-06-18 14:36:10

Strict implementation of off-peak production is an important reason for the rise of local cement prices.

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According to China Cement Market Data Center, cement prices in Northwest China continue to rise under the influence of the new national standard and the policy of staggering peak and stopping kilns.

2024-06-14 17:35:49

On June 13, the 11th China Cement Energy Conservation and Environmental Protection Technology Exchange Conference and Equipment Renewal Forum, sponsored by China Cement Network, was held in Nanjing, Jiangsu Province.

2024-06-13 16:36:33

Leading cement enterprises are encouraged to carry out cross-regional and cross-ownership mergers and reorganizations.

2024-06-07 16:28:47

It is not a day's work for the cement industry to reduce carbon. It needs to start from technology, raw materials, fuel, production management and policy response to form a comprehensive strategy to promote the industry's transformation to low carbon and contribute to the global carbon neutrality goal.

2024-06-03 10:04:44

Under the background of the current downturn in the cement market and the tightening of the mine transfer policy, it is extremely difficult to solve the mine problem in the short term, and ultimately waiting for such enterprises, I am afraid they will withdraw from the market.

2024-05-22 09:17:44

The cost of purchased limestone is basically more than 40 yuan/ton, and the cost of limestone purchased by some enterprises is even 50-60 yuan/ton, which is more than 30 yuan/ton higher than the cost of limestone per ton of self-owned mining enterprises. Converted to clinker, the cost of raw materials per ton of clinker is almost 40 yuan/ton higher.

2024-05-21 17:34:42

In 2023, the cumulative cement output of Enterprises above the national scale was about 2.023 billion tons, ranking first in the world for 38 consecutive years. Cement production accounts for more than 50% of global production, and annual carbon dioxide emissions exceed 1.2 billion tons.

2024-05-20 10:06:04

"Standing at the new historical starting point of the development of ecological civilization, only by anchoring the new track of green and low-carbon development and protecting the green mountains and rivers can we win Jinshan and Yinshan." Xiao Zhanding, party secretary and chairman of Qianye Cement, said.

2024-05-11 10:11:27

Jidong Cement Tongchuan Company actively responded to the call of the national new energy system construction, using the existing plant top resources of 10000t/d clinker cement production line in Huiyuan Industrial Park, the construction of 3.26 MW distributed photovoltaic power generation project has been successfully connected to the grid recently, opening a new chapter of green low-carbon development.

2024-05-09 09:30:02

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2024-05-07 11:29:18

In the next step, enterprises at all levels of China National Building Material Co., Ltd. will continue to implement Xi Jinping's ecological civilization thought, uphold the enterprise mission of "materials create a better world" of China National Building Material Co., Ltd., further restore green, expand green and increase green, actively carry out the construction of green factories and ecological factories, build garden factories and beautiful factories, and promote the harmonious coexistence of enterprises and nature, man and nature.

2024-05-06 09:24:59

On the afternoon of April 24, the research team visited Shanya South, visited the industrial Internet digital platform, safety experience hall, intelligent central control building and fully automatic laboratory, and got a detailed understanding of the achievements of Zhejiang Cement and Shanya South in greening, digitalization and characteristic safety management. It also conducted in-depth exchanges with the management of Zhejiang Cement and Shanya South on industry development, three fine management, transformation and upgrading.

2024-04-29 17:27:49

Nowadays, with the application of digital and intelligent technology, the production of cement building materials is another picture.

2024-04-28 09:24:57

In 2023, about 110 million tons of cement were sold in the United States, with a total value of about 16 billion US dollars, or about 115.9 billion RMB.

2024-04-25 16:14:35

Deqing Nanfang Cement Co., Ltd. is a "waste-free factory" selected by Huzhou City. In recent years, the enterprise has gone green and found a new way of sustainable development in which the construction of ecological civilization and the upgrading of traditional manufacturing industry complement each other.

2024-04-25 09:21:02

In 2023, the company achieved an output value of 5.6 billion yuan and a profit of 400 million yuan, an increase of 5.6% and 3.1% respectively over the previous year.

2024-04-22 15:40:55

The Implementation Plan for Promoting Equipment Renewal in the Industrial Field aims to expand effective investment, promote technological transformation and upgrading of manufacturing industry, and realize digital transformation and green upgrading through large-scale equipment renewal. The plan puts forward four key tasks: the implementation of advanced equipment renewal action, digital transformation action, green equipment promotion action and intrinsic safety level promotion action. Increase fiscal and taxation support, strengthen standard guidance, strengthen financial support and factor guarantee as safeguard measures. The goal is to increase the investment scale of industrial equipment by more than 25% by 2027 compared with 2023, increase the popularization rate and the coverage rate of digital transformation, and improve the level of environmental protection and safety.

2024-04-10 09:26:17

Southern Cement upholds the spirit of General Secretary Xi Jinping's "Congratulations Letter", adheres to the Party's overall leadership, deepens the reform of state-owned enterprises, and promotes high-quality development. The company is committed to the deep integration of Party building and operation, and strengthens the core competitiveness of enterprises through digital transformation. Through the establishment of a digital platform, covering party building, production, logistics and other fields, to achieve the modernization of party affairs management. At the same time, Southern Cement has also made remarkable achievements in intelligent manufacturing and green development, such as the construction of intelligent factories and the development of green mines, and is committed to becoming a world-class enterprise.

2024-04-01 09:27:25

Therefore, when publicizing the capacity replacement plan, the provincial government should clearly indicate whether the replacement has the qualification of inter-provincial capacity replacement. Only with the qualification of cross-provincial placement, can we have the "next step".