Green development is not a cost, but an opportunity to invest in the future. Meeting Dong Shihong, chairman of Suzhou Shijing Technology Co., Ltd. (Hereinafter referred to as Shijing Technology)
again, he became busier than before. Environmental protection management business blossoms in many places, carbon sequestration business is laid out ahead of schedule, and the expansion of photovoltaic capacity is accelerating. Shijing Technology, which was originally a single R & D and manufacturing enterprise for environmental pollution control, has successfully transformed into a comprehensive environmental protection enterprise integrating the overall solution for industrial pollution control, photovoltaic new energy, carbon sequestration and efficiency enhancement with its forward-looking strategic layout and profound technical background.
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" Shijing Technology has been developing around one thing so far. That is green development. Whether it is to help industrial enterprises reduce pollutant emissions, achieve carbon sequestration and efficiency, or to invest more in the photovoltaic field, Shijing Science and Technology, led by Dong Shihong, has never forgotten its original intention of "green", firmly anchored the concept of green development in the torrent of the development of the times, and painted a magnificent and vibrant panorama of green ecological industry with practical actions.
The
photovoltaic and new energy sectors are the green pulse of the times, and every beat of their beating shows the infinite possibility of harmonious coexistence between human beings and nature.
Shijing Science and Technology has unlocked the possibility of high-quality development of enterprises in this infinite possibility. On December 28,
2023, with a total investment of 11.2 billion yuan, the first phase of the project of producing 24 GW high-efficiency N-type monocrystalline TOPCon battery with an annual output of 18 GW was successfully put into operation, and the first product was offline.
On March 8, Shijing Technologies announced that it would co-invest with Jingke Energy in the construction of an annual output of 20GW silicon wafers + 20GW high-efficiency solar cells project. On the same day, Shijing Technology announced that its subsidiary, Shijing Solar Energy, will sell about 2.5 billion monocrystalline solar cells/Class A solar cells, including but not limited to 182 sizes, to JinkoSolar and its subsidiaries during the contract period from January 1, 2024 to December 31, 2025. The continuous progress of the
project also means that Shijing Technology has gained a firm foothold in the photovoltaic track and taken off against the wind! ccement.com/richtext/img/6n8qoj662t1718847588144.jpg">
"Starting from the treatment of waste gas, we are very familiar with the technological upgrading and industrial layout of the photovoltaic sector." Dong Shihong introduced that as the leading enterprise of environmental protection equipment in the new energy industry, Shijing Technology has the advantages of industrial chain resources in the production of solar cells, supporting photovoltaic modules and the construction and operation of distributed energy power plants.
At the same time, the TOPCon business and the main environmental protection equipment business of Shijing Technology have formed a good synergistic effect. The company has accumulated experience in the design, installation, maintenance and operation of factory electromechanical systems and various professional systems in the field of photovoltaic cells, which helps to improve the operational stability of photovoltaic cell production and optimize operating costs.
In the era of global new energy revolution, not only Shijing Science and Technology, but also many cement enterprises have begun to take the lead in the layout, starting with distributed photovoltaic, energy storage and acquisition of silicon enterprises, actively opening up new tracks.
In Dong Shihong's view, the transformation and upgrading to green and low-carbon is the general trend of the cement industry, but cement enterprises should not rush into the photovoltaic field, "especially in the current complex and severe market, we should do a good job of technology, capital and market reserves, in order to make cement enterprises more prepared." Dong Shihong said.
Whether it is Shijing Science and Technology or the cement industry, their photovoltaic stories are still continuing. With the strong east wind of industrial innovation, we firmly believe that Shijing Science and Technology will grasp the pulse of the times, bravely grasp the precious opportunity of the iterative transition of photovoltaic technology, and become an important promoter and participant of the new generation of photovoltaic technology. To inject new vitality into China's photovoltaic industry.
Continuous "carbon" is expected to further accelerate the pace of carbon reduction in the
cement industry. In February
this year, the State Council promulgated the Interim Regulations on the Management of Carbon Emission Trading (hereinafter referred to as the Regulations), which came into effect on May 1, 2024.
Some insiders said that the promulgation of the Regulations means that the management of carbon trading has been upgraded from the "departmental regulations" issued by the Ministry of Ecology and Environment to the "administrative regulations" approved by the State Council, which is expected to br e stronger policy continuity and binding force, and promote the further healthy development of China's carbon market.
For the cement industry with large carbon emissions, carbon reduction is not only the "sword of Damocles" hanging overhead, but also the catalyst of the green low-carbon revolution, which will open a new realm of ecological civilization construction and high-quality development.
Especially in the current complex and severe market, cement enterprises need more long-term layout, and carbon emission reduction will be one of the powerful weapons to enhance the core competitiveness of cement enterprises.
"At present, the carbon reduction of cement enterprises is more often a false proposition." When communicating with China Cement Network, Dong Shihong pointed out that benefits are fundamental to the survival of cement enterprises. If huge amounts of money are spent on formalistic "carbon emission reduction" without actual benefits, the current cement enterprises will only "die faster".
In Dong Shihong's view, only by combining "carbon reduction" and "profit" can the cement industry go faster and farther on the road of carbon emission reduction.
How to make "carbon reduction" more valuable? Ccement. Com/Price _ list -1-s0-e0-p0-c0-k100059-b0.
The world's first steel slag capture cement kiln flue gas CO2 to prepare carbon sequestration auxiliary cementitious materials and low-carbon cement production line invested by Shijing Science and Technology is located in Jiyuan, Henan Province < a href="https://price.ccement.com/brandnewslist-1-1000121.
does Jiyuan Zhonglian's project have?
Not only Jiyuan Zhonglian, but also the technology of using steel slag to capture CO2 from flue gas has been applied in many projects. In April
2023, the world's first use of steel slag to capture CO2 from lime kiln flue gas was completed and put into operation. Yongfeng Project has the production capacity of treating 300000 tons of steel slag annually to prepare auxiliary cementitious materials for carbon sequestration, which can be directly captured and utilized in September
2023. Shijing Science and Technology has signed a contract with Henan Jiyuan Iron and Steel (Group) Co., Ltd. and Jiyuan Innovation Science and Technology Group Co., Ltd. to collect 32000 tons of CO2 annually, reduce carbon by 500000 tons and co-dispose 600000 tons of steel slag to prepare 1.2 million tons of high-efficiency mineral admixtures. The total investment is about 2.
As Dong Shihong said, "Carbon is the future". At the intersection of history and future, Shijing Science and Technology, with low carbon as its pen, helps the cement industry to depict a harmonious picture of green mountains, green waters and industrial prosperity, and casts a hard backbone of sustainable development in the blending of grey and green.
Under the condition that the reference oxygen content is 10%, The hourly average emission concentration of particulate matter, sulfur dioxide and nitrogen oxides in the waste gas from the cement kiln and the waste heat utilization system at the kiln tail shall not be higher than 10 mg/m3 , 35 mg/ m3, 50mg/m3。
Judging from the current situation, the ultra-low emission transformation of dust and sulfur dioxide is basically no problem, the difficulty lies in the ultra-low emission transformation of nitrogen oxides, cement enterprises need to carefully select their own denitrification technology route according to their own production line characteristics, geographical location, resource conditions and other factors, in order to ensure environmental protection standards at the same time. To maximize economic and social benefits.
According to Dong Shihong, LCR denitrification combines absorption, catalytic reaction and other technologies to convert nitrogen oxides into H2O and N2 without secondary pollution. The denitration technology has the characteristics that medium and low temperature and high temperature can be automatically adjusted, the denitration efficiency is 99%, the lowest emission of nitrogen oxides can be reduced to below 10mg/Nm3 , and the integration of desulfurization, denitration and dust removal can be realized to achieve ultra-low emission of dust, sulfur and nitrate.
But what is more surprising is that Shijing Technology, which is famous for its "LCR denitrification technology" in the cement industry, has actually made great achievements in the field of "SCR denitrification technology".
It is reported that Shijing Technology adopts high temperature and high dust SCR denitrification method, which has the characteristics of less equipment, easy layout, less system resistance, less air leakage, low maintenance and operation costs, and less investment, so it is favored by many cement enterprises. In the face of the difficulty of "catalyst blockage and poisoning risk in high temperature and high dust SCR denitrification", Shijing Science and Technology also has a "killer's mace". In terms of
catalysts, domestic professional suppliers are used, and the composition of raw materials exported from C1 is tested. More Reasonable and suitable catalyst is selected according to the influence of factors such as different raw meal compositions, flue gas temperature, SO2 , dust concentration of flue gas, alkali metals (and alkaline earth metals) in fly ash, heavy metals in fly ash, etc., and the catalyst mainly adopts 11/13 holes. Olves the problems of easy blockage, poisoning and failure of the traditional catalyst, optimizes the flow rate in the holes of the catalyst, and reduces the risks of dust accumulation, blockage and abrasion.
Shijing Technology also adopts a unique ash removal technology. Through the coupling of rake soot blower and sonic soot blower, the height of the soot blower nozzle is accurately designed to ensure the uniform and stable distribution of the flow field on the surface of the catalyst, so as to solve the problem of cement dust removal stably and reliably.
From the practical application of cement enterprises, we can also get a glimpse of the denitrification technology effect of Shijing Technology. The kiln tail flue gas SCR denitrification transformation project of Guangling Cement Co., Ltd. contracted by Shijing Science and Technology was put into operation in March 2022 and reached the production standard. The system runs steadily, and the NOx emission concentration at the outlet is less than 35mg/Nm3 . Ammonia escape at outlet < 3.5mg/Nm3 , pressure drop of SCR denitration system < 800Pa (actual operation 400-600Pa), temperature drop of SCR system < 8 ℃ (actual operation 4-6 ℃), Ammonia consumption of SNCR + SCR per ton of clinker is ≤ 3.0 kg (actual operation ~ 2.68 kg/t. Cl), and electricity consumption per ton of clinker is ~ 1.
The SCR denitrification project of a cement company in Shuozhou was put into operation in September 2023 and reached the production standard. Outlet NOx emission concentration < 35mg/Nm3 , outlet ammonia escape < 3.5mg/Nm3 , SCR denitration system pressure drop < 800Pa (actual operation 350-600Pa), Temperature drop of SCR system ≤ 8 ℃ (3-5 ℃ in actual operation), ammonia consumption of SNCR + SCR per ton of clinker ≤ 3.0 kg (2.03 kg/t. Cl in actual operation), Electricity consumption per ton of clinker ~ 1.
< IMG SRC = "https://img7.ccement.com/richtext/img/p68b2ew4h3c1718847734615. from LCR, to carbon sequestration, to photovoltaic field, every breakthrough." Every step forward is the adherence and persistence of Shijing Science and Technology to green development under the leadership of Dong Shihong, and also the practice and pursuit of the vision of harmonious coexistence between man and nature. The development process
of Shijing Science and Technology is a vivid history of Chinese environmental protection enterprises forging ahead and planning for "green". They not only lead the trend in the supply of environmental protection equipment and the transformation of the whole scheme, but also achieve major breakthroughs in the emerging photovoltaic, carbon sequestration and other fields, and truly achieve the goal of "never forget the original intention, always".
Looking forward to the future, Shijing Science and Technology will continue to adhere to its original intention, deepen scientific and technological innovation, adhere to the path of green sustainable development, serve the society with more diversified environmental protection solutions, work hand in hand with all walks of life to build a grand blueprint for a beautiful China, and write a new chapter in the green cause.
