Recently, the Hebei Provincial Department of Industry and Information Technology announced the list of "waste-free enterprises (factories)" and demonstration enterprises for comprehensive utilization of industrial solid waste in Hebei Province in 2022, and eight Jidong cement enterprises under Jinyu were selected.
Among, Hebei BBMG Dingxin Cement Co. Ltd. Zan Huang 2. Zanhuang Jinyu Cement Co., Ltd. has taken three emission reduction measures of "management emission reduction, technology emission reduction and investment emission reduction" to enhance the self-purification ability of the enterprise. In 2022, the greening and upgrading of the plant area was carried out, and 600 square meters of slope and 28000 square meters of green area were harnessed. Complete environmental protection projects such as electric bag project, sewage treatment system, rainwater collection and reclaimed water reuse; complete the transformation of SCR ultra-low emission project, prospectively introduce new technologies, new processes and new equipment such as "second-generation cement technology, ultra-low emission of pollutants", and implement a series of energy-saving and efficiency-improving transformation projects; Actively promote the implementation of the "public transit railway" strategy for clinker transportation, and reduce the impact of the normalization of road overload control on customer supply; Actively explore the substitution of raw materials, adopt advanced technology, and the annual consumption of industrial waste residue accounts for 54.2022, which can co-dispose of domestic waste, sludge and hazardous waste with calorific value. In order to achieve the goal of "environmental friendliness, resource conservation and green environmental protection", we have promoted the upgrading and transformation of old equipment, promoted the reform of digital factories, improved the comprehensive utilization rate of resources, and promoted the integrated development of environmental protection construction and production and operation. We have successively invested in the construction of "waste-free factories" from six dimensions of production, equipment, delivery, quality, video and logistics. Through the automatic analysis of big data, the intelligent control and intelligent expert optimization of the production process are realized, the operation is optimized, the production is increased and the consumption is reduced; the intelligent technical transformation creates the "circulation line" of sewage treatment, and the intelligent expert optimization realizes the "zero" discharge of sewage; the intelligent delivery system is designed, and the whole process is unmanned operation and management. Continuously improve the level of comprehensive utilization of industrial solid waste resources. Nearly 100 million yuan has been invested in the whole process of flue gas treatment, and all the material sheds have been closed, atomized and sprayed, belt corridors have been closed, denitrification has been transformed, dust collection has been expanded, car washing tables have been installed, and waste materials have been used to carry out three-dimensional greening of the factory area. The factory area has achieved "non-hard or green", and has been rated as a national green factory in 2021. 4. Xingtai BBMG Jidong Cement Co., Ltd . Xingtai Company actively responds to the call of national green production and reduces the impact of industrial solid waste on the environment by recycling solid waste. By utilizing the characteristics of high temperature, large heat capacity, stable working condition, long residence time, easier formation of stable oxidation environment and more thorough treatment of solid wastes in the cement kiln, all solid wastes such as dedusting ash and sludge from sewage treatment station produced in the production process are recycled in the kiln to reduce the generation of solid wastes from the source. Through strengthening management and technological transformation, we can maximize the utilization of resources. In March 2021, a demonstration line of harmless co-disposal of 500 tons/day of comprehensive solid waste in cement kilns was invested to dispose of the general solid waste produced by the surrounding counties and cities of the radiation company and Xingtai City, with the annual disposal of compre hensive solid waste reaching 170000 tons, which successfully solved the problem of "garbage siege" and realized the construction of a comprehensive solid waste disposal system. It has effectively eliminated the environmental pollution caused by landfill and occupied a large amount of arable land, and has made positive contributions to building a "waste-free city". 5. Tangxian Jidong Cement Co., Ltd . Tangxian Company pays attention to the generation and comprehensive utilization of industrial solid waste, and is committed to the synergistic effect of pollution reduction and carbon reduction to promote the high-quality development of enterprises. In order to promote the transformation of high-value recycling of industrial solid waste and renewable resources to a comprehensive green enterprise. In the past three years, the generation intensity of general industrial solid waste has been in a state of zero growth or negative growth; the comprehensive utilization rate of general solid waste generated by iron and steel, coking and power plants is at the advanced level in the same industry, and the utilization of solid waste is increasing year by year. In order to further reduce costs and increase efficiency and increase the utilization rate of industrial solid waste , Zhuolu Jinyu Cement Co., Ltd. has continuously explored the surrounding industrial solid waste and introduced new types. On the premise of ensuring product quality, the production line has achieved a high degree of automation and intelligent control by constantly exploring and testing, optimizing the dosage, adjusting the process parameters and introducing advanced production technology. The comprehensive utilization of industrial solid waste resources has been increasing year by year, and the annual utilization of industrial solid waste will reach 500,000 tons in 2021. The selected categories have been listed in the National Catalogue of Products for Comprehensive Utilization of Industrial Solid Waste Resources and the Catalogue of Products for Comprehensive Utilization of Resources and Preferential value-added tax of Labor Services, and the comprehensive utilization capacity and level of resources are in the leading position in the same industry in China and the province. The company mainly produces commercial clinker and P.O42.5, P. S. A32. 2. Tangshan Jidong Qixin Cement Co., Ltd . Qixin Company adheres to scientific and technological innovation as the driving force, focuses on the efficient and low-carbon scale utilization of bulk solid waste, and introduces advanced technology to improve the comprehensive utilization level of solid waste resources. Taking the transformation and upgrading of environmental protection as an opportunity, timely invest in new cement mill, cement silo and delivery system to improve the utilization capacity of bulk solid waste; strengthen the management of the whole process of comprehensive utilization of bulk solid waste in the production process of the project, strictly implement the responsibility of environmental pollution prevention and control in the whole process; devote to building an industrial structure with high scientific and technological content, low resource consumption and less environmental pollution, and reduce energy consumption intensity and carbon intensity; Comprehensively evaluate the operation rate of existing equipment and the utilization efficiency of waste heat, strengthen the recovery and utilization of waste heat, and expand the application scope of products for comprehensive utilization of bulk solid waste resources such as clinker and cement. The comprehensive utilization capacity of bulk solid waste has been improved in an all-round way, the scale of comprehensive utilization has been growing, the efficiency of resource utilization has been greatly improved, and the level of environmental protection and comprehensive utilization of resources has reached the leading level in the industry. 3 . Luanzhou Company of Jidong Cement Luanzhou Co., Ltd. adheres to the strategic direction of green, low-carbon and sustainable development, aims at creating green factories, focuses on comprehensive utilization of resources, environmental management and clean production transformation, and insists on carrying out energy-saving and emission reduction work with "reduction, resource utilization and high efficiency". Optimize the design of clinker proportion, strengthen the co-disposal capacity of kilns, realize the resource utilization of mining waste rocks, and promote the company's green and low-carbon development. Relying on cement kiln co-disposal technology and solid waste disposal capacity, more than 700000 tons of industrial solid waste such as desulfurization gypsum, fly ash and smelting waste residue are consumed annually, and nearly 70000 tons of general solid waste such as sludge are disposed. In the utilization of industrial waste residue, the quality is strictly controlled, the batching scheme is optimized, and the high-quality cement produced by using industrial waste residue has achieved considerable economic and social benefits. In 2021, the project of comprehensive utilization of ore resources with an annual output of 3 million tons will transform the ore from mineral processing solid waste to sand and gravel aggregate, realize zero waste discharge of limestone while comprehensively utilizing ore resources, and produce 3 million tons of high-quality aggregate annually, which will become a new profit growth point for enterprises. 4. Tangxian Jidong Cement Co., Ltd. insists on scientific and technological innovation and steadily promotes clean production, low-carbon energy consumption, recycling of resources and green supply. It has successively passed the certification of low-carbon products, the certification of harmful substances in cement, the use of trademarks for green building products, and the certification of national green factories and green design products. The commercial clinker and "Jinyu" brand high-quality cement produced are products of comprehensive utilization of solid waste resources. During the comprehensive evaluation period of industrial solid waste resources from 2021 to 2022, the annual utilization of industrial solid waste will reach 56. Jidong Cement will continue to implement the spirit of the 20th National Congress of the Communist Party of China, adhere to the concept of green development, strengthen green development, and make good use of its own advantages in co-disposal of cement kilns. It will contribute more to the construction of "waste-free cities" and make greater contributions to the construction of ecological civilization and economic and social development.
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