In recent years, Zhengzhou refractory industry has responded to the national call for energy conservation and emission reduction and the specific requirements of "carbon peak and carbon neutrality", actively implemented the relevant spirit of high-quality development of the municipal government, gave full play to the unique advantages of Zhengzhou refractory industry, accelerated the green and intelligent construction, and achieved remarkable results through intelligent system management innovation, technological innovation, process innovation and other measures. Here is to introduce the green transformation experience of some refractory enterprises that have won the honor of national green factory or provincial green factory, provincial green product design and provincial green technology innovation demonstration enterprise, for the reference of each enterprise:

Zhengzhou Annike Company: Continuously carry out green transformation through new technologies, new processes and new equipment to achieve the purpose of energy saving and carbon reduction: through the adoption of advanced central control management system and intelligent silo, automatic batching, full-automatic hydraulic press, program-controlled press, automatic loading and discharging kiln, high-precision scanning and automatic detection of products, automatic palletizing and packaging, positioning and warehousing technologies, production automation is fully realized, production efficiency is improved and energy consumption is greatly reduced; the shaped products are fired in tunnel kiln, which is a continuous firing equipment. The main advantages are large output, high thermal efficiency, long service life, high degree of mechanization and automation, easy adjustment, and high product quality. At the same time, before firing, the billet car is loaded into the drying kiln for drying. The drying kiln uses the waste heat of the tunnel kiln to recover the waste heat of the tunnel kiln to improve the energy utilization efficiency. The tunnel kiln and shuttle kiln are provided with a waste heat recovery system, and the waste heat air is sent to the preheating section to provide a heat source for the preheating section to heat the materials. All tunnel kiln waste heat pipelines are equipped with 1.5 tons of waste heat boilers for heating and living hot water for employees. After flue gas is desulfurized and out of stock, heat exchangers are installed before discharge. The hot air is used for drying products or the hot water is used for employees' lives, thus improving energy utilization rate and achieving energy saving effect.

Henan Tianxiang Company: Intensify scientific research and innovation, and use industrial waste resources (low-grade bauxite, shale, fly ash, coal gangue, waste refractory materials, bauxite beneficiation waste residue, etc.) to produce low-density and high-strength oil fracturing proppant, with an annual comprehensive utilization of more than 200000 tons, saving production costs and having good economic and environmental benefits; The company uses the roof of the production workshop to build a 4.4MW distributed photovoltaic power generation project, with an annual generating capacity of 5.5 million kilowatt-hours, reduce carbon emissions by 788.5 tons; the company makes comprehensive use of rotary kiln waste heat to save energy and reduce consumption and improve the utilization rate of waste heat. A total of about 100 cubic meters of water tank is installed at the kiln head of the rotary kiln, and the heat generated by the rotary kiln production line is used to warm the water in the water tank for workers to bathe. Construction of 6.8 tons of waste heat boiler, supporting the construction of 1MW condensate steam turbine, recovery of waste heat resources generated in the production process and power generation. The semi-finished product drying equipment is modified, seamless steel pipes are used for heat exchange at the tail of the rotary kiln, heat is transferred to the semi-finished product screening device, and semi-finished products are dried. The company has established an on-line monitoring system for electric power and natural gas, reformed the production line for environmental protection and ultra-low emission, added more than 20 pulse bag dust removal equipment, treated the flue gas through dust removal and dry desulfurization and SCR denitrification, and installed on-line monitoring, and reached ultra-low emission standards, increase the level of industrial energy efficiency. Employ a third-party professional organization to evaluate the energy efficiency level and actual operation of key energy-using equipment such as transformers, motors, fans, and rotary kilns, analyze the potential for the promotion and application of advanced energy-saving technology and equipment, and carry out special energy-saving diagnosis; for the production process Air pollutants, water pollutants, solid waste and noise, after the company's professional and intelligent upgrading, meet the ultra-low emission requirements. Build two small reservoirs to collect rainwater for semi-finished products, use self-developed spray system to granulate, reduce water consumption, and save more than 100000 tons of water annually.

Zhengzhou Zhendong Company: With energy saving and consumption reduction, pollution reduction and efficiency increase as the core, it has adjusted and optimized the production structure. It has newly installed an automatic feeding and storage system for refractory breaking and crushing, an optimization project for production energy system, an intelligent production workshop for ladle bricks, an intelligent transformation of amorphous materials, an information project for automatic batching and mixing production line combined with management system (ERP), and an automatic sorting and packaging system, including more than 260 pulse bag filters, there are more than 10 sets of waste gas treatment facilities, one domestic sewage treatment station, 55 molding robots and other intelligent equipment, environmental protection online detection system, central air conditioning system and automatic spraying system, and 10 new environmental protection drying kilns, which are changed from natural gas to green and environmental protection electric energy. New research and development center, intelligent production scheduling center, plant greening, beautification and energy-saving renovation, roads and squares using photovoltaic street lights, staff bath using solar heating and other energy-saving and environmental protection green measures. The company began to establish a water-saving enterprise in 2019, collecting domestic wastewater and rainwater, and carrying out technological transformation of rainwater landscape lake. The company focuses on green factories, intelligent workshops and clean production, takes ERP as the core platform, and builds a supply chain management mode integrating production processes through ERP system and PLC in the new environment of information processes such as network, database and management software platform, centering on the core of the company, starting from the procurement of raw materials, intermediate products and final product delivery, forming a complete supply chain closed-loop control model. In the manufacturing process, the whole process is clean and normalized. On the basis of intelligent production lines, the company has implemented the informatization project of automatic mixture production lines combined with management systems in refractory workshops. Using Internet of Things technology, the whole production process of raw material mine primary processing, material transportation, batching system, trolley transportation system and palletizing storage after batching are monitored by PLC system through PLC automatic control system, after the products pass the quality inspection, Xinbao software will generate the whole process information of product production and generate corresponding two-dimensional codes to ensure the traceability of finished product information, realize data interconnection throughout the whole value chain, realize efficient production and flexible manufacturing, and finally realize fine production management, integration of production process, standardization of enterprise management, digitalization of analysis and application, and scientific decision support. Guided by scientific and technological innovation and the development of new refractory materials for energy conservation and environmental protection, independent innovation, research and develop green products, promote green energy-saving technologies, continue to increase investment in research and development, renovate and expand more than 20 sets of automatic analytical instruments and equipment such as research and development buildings, new fluorescence analyzers, automatic air-cooled thermal shock resistance instruments, and slag resistance test furnaces, Strengthen cooperation with scientific research institutions and colleges, introduce advanced technologies and talents to vigorously develop green products, and promote green energy-saving technologies, to provide green and low-carbon refractory products and technical support for downstream industries with high energy consumption, we have successively developed a variety of high-performance, long-life, energy-saving and environment-friendly refractory materials suitable for clean steel and special steel.

Henan Hongyu Company: Intensive Land Use: The enterprise adheres to the principle of intensive land use, excavates the potential of land use in the factory area, and saves valuable land resources. Change high input, high consumption, and low efficiency to low input, low consumption, and high output, and change the extensive use of land and economic extension growth to intensive use of land, take the road of connotative tapping potential, and give full play to the asset benefits of land resources. The output value per unit area of the enterprise is 39500 yuan (10,000 yuan/hm2), reaching the advanced value requirement. Harmless raw materials: the raw materials used in the production process of the enterprise are mainly high bauxite, silicon carbide, corundum, clay, boric acid, coke powder, etc., which are non-toxic and harmless raw materials. At the same time, the enterprise adheres to the principle of non-toxic, harmless or low-toxic and low-harmful raw materials, and low-harmful raw materials, and low-harmful raw materials, and low-harmful; cleanliness of production: enterprises pay attention to source control, carry out systematic optimization and process control, carry out voluntary cleaner production audit, find out the establishment of energy conservation and consumption reduction of enterprises, and make use of advanced cleaner production technology and whole process and full cycle management to further reduce the amount of pollutants, in line with the principle of cleanliness; waste recycling: the industrial waste generated in the production process of enterprises is mainly waste aluminum wire, enterprises can be fully reused in the production system. According to the "National Industrial Solid Waste Resources Comprehensive Utilization Product Catalog", the enterprises are compared. The remaining production links of the enterprise do not produce industrial solid waste, which is in line with the principle of waste recycling; low-carbon energy: The energy used in the production process of enterprises is mainly electric energy, natural gas and diesel. In order to further reduce energy consumption, there are plans to replace diesel vehicles with electric vehicles, and use the office building area of the plant to carry out photovoltaic low-carbon technology transformation to further reduce the use of petrochemical energy. At the same time, the plant is equipped with frequency conversion system and energy control system to further refine the energy consumption, which is in line with the principle of low-carbon energy.

Henan Ant New Material Company: The company vigorously promotes energy efficiency improvement and accelerates the realization of economical development. Adhere to the priority of conservation, vigorously promote the energy consumption revolution, improve the efficiency of industrial energy utilization, promote enterprises to reduce costs and increase efficiency, accelerate the formation of green intensive production methods, and enhance core competitiveness. In order to promote the carbon peak carbon neutral target as scheduled as the process structure adjustment, promote the overall guidance of low-carbon transformation, promote structural energy conservation, reduce pollution and reduce carbon. Vigorously adjust the product structure, and actively develop high value-added, low-consumption, low-emission processes and products. The application of advanced and applicable technology and equipment as a means to strengthen technical energy conservation. The company has made solid efforts to promote clean production and significantly reduce pollution emissions. Carry out clean production technology transformation around key pollutants, promote green basic manufacturing processes, reduce pollutant emission intensity, and promote the implementation of pollutant prevention and control action plans. Reduce the use of toxic and harmful raw materials. Continue to use non-toxic and harmless or low-toxic and low-harm raw materials in the production process, reduce or avoid the generation of pollutants from the source, and promote the substitution of toxic and harmful substances. Gradually expand the scope of implementation to reduce environmental risks. Strengthen water conservation and pollution reduction. Taking water balance testing and water efficiency benchmarking as the starting point, vigorously promote water-saving technology transformation, promote water-saving technology, technology and equipment, and improve water use efficiency. In accordance with the principles of reduction, reuse and resource utilization, we should carry out in-depth research on improving the efficiency of resource utilization, and promote the scientific utilization, cascade utilization, efficient utilization and make the best use of resources. The company continues to improve its scientific and technological support capabilities and promote the development of green innovation. Keep up with the direction of scientific and technological revolution and industrial transformation, speed up green scientific and technological innovation, increase the research and development of key common technologies, closely follow the development of individual technologies, increase the effective supply of green scientific and technological achievements, and give full play to the leading role of scientific and technological innovation in the green development of enterprises. The company takes promoting the development of a resource-saving and environment-friendly society as its own responsibility, and vigorously develops and promotes environmentally friendly green abrasive materials. In the production process, the waste iron ore is comprehensively utilized as raw material to make waste resources, develop circular economy and promote sustainable development. The company has formulated the development goal of green innovation and actively made new and greater contributions to regional economic development.