Type of refractoryTime of issue : 2013- 04-11
There are many kinds of refractory materials, usually divided into ordinary refractory materials (1580～1770°C), advanced refractory materials (1770～2000°C) and special refractory materials (above 2000°C) according to the degree of refractoriness; Neutral refractory and alkaline refractory. In addition, there are refractory materials for special occasions.
Now the definition of refractory material has not only depended on whether the refractoriness is above 1580 °C. At present, refractory materials generally refer to inorganic non-metallic materials used in the lining of production equipment such as metallurgy, petrochemical, cement, ceramics, etc.
Refractory professional introductionTime of issue : 2013- 08-08
This professional training has the knowledge of refractory science and engineering, and can engage in scientific research, technology development, process and equipment design, production and management in the fields of refractory structure research and analysis, material preparation, material forming, processing and engineering construction. Senior engineering and technical personnel working in management and other aspects.
Students majoring in the refractory production process, process and equipment, the basic theory, composition, structure, performance and production conditions, with material testing, production process design, material modification and research and development of new products, new technologies and Equipment and technical management capabilities.
Graduates should acquire the following knowledge and abilities: 1. Master the basic knowledge of industrial production processes and equipment and production processes of refractory materials; Master the principle and process basis of refractory preparation, structure and performance of materials; Master the basic knowledge and skills of mechanical, electronic, engineering, and computer applications necessary for this major; Preliminary ability to have industrial production, quality control and technical management of products; 6. Have the ability to select materials, equipment and process design correctly; It has the initial ability to improve the performance of materials and develop new materials, products and processes.
Opening a course:
Main Courses: Materials Science and Engineering, Thermodynamics, Solution Thermodynamics, Electrochemical Thermodynamics, Surface and Interface Phenomena Thermodynamics, Refractory Oxide Thermodynamics, Carbon-Based Refractory Thermodynamics, Refractory Non-Oxide and Its Composite Refractory Thermodynamics.
Main courses: physical chemistry, inorganic material properties, testing and research methods, powder engineering, material preparation principles, thermal processes and equipment, inorganic materials technology.
Main practical teaching: including professional experiments, engineering construction internships, production internships, course design, computer application and computer practice, graduation design.
How to choose a reasonable firing processTime of issue : 2013- 10-10
How to choose a reasonable firing process is the way to save energy and reduce consumption
There are various sintering processes in the production of sintered bricks in the kiln. When the sintering process is selected, it is also one of the advantageous ways to save energy and reduce consumption. For example, in the one-time burning process, the internal combustion bricks are used. When determining the code burning process, according to the different raw materials, combined with the structural characteristics of the kiln, there is much to do in the blending of internal combustion. For example, we use a modern advanced kiln to burn certain raw materials and specific products, and 300Kcal of heat per kilogram of product can complete the sintering process. Another kiln type used in another sintering process, firing 400-500Kcal per kilogram of product, can complete the sintering process, so the difference between each kilogram of product is between 100 and 200Kcal, we average 150Kcal calories, one year. The brick factory with 60 million pieces of production saves 4,500 tons of standard coal every year. According to the calculation of 450 yuan per ton, it can save more than 2 million yuan in fuel costs every year. In terms of internal combustion blending, we must do a uniform amount of mixing, one can not be more miserable, and the second can not be less. Excessive amounts are prone to excessive sintering temperatures and waste of pyrogens. Less mixed kiln temperature does not come, easy to produce raw bricks, temperature is not enough, product quality is low, then we have mastered the internal combustion blending to be finely processed to ensure the uniform mixing of raw materials, in order to achieve the desired effect.
"Twelfth Five-Year Plan" China's refractory industry opportunities and challenges coexistTime of issue : 2014- 04-18
The "Twelfth Five-Year Plan" is a crucial period for China to build a well-off society in an all-round way. It is a period of deepening reform and opening up and accelerating the transformation of economic development. The development of China's refractory industry faces both rare historical opportunities and many risks and risks. challenge.
The international situation: From the global situation, the international environment is generally beneficial to China's industrial development. However, compared with the past decade, the international environment for China's industrial development will gradually tighten. The first is that the global economy may enter a period of low growth. In the post-financial crisis, the world economy will be growing at a low rate for a certain period of time. Secondly, the global supply and demand structure will undergo significant changes. Now some major economies are planning to make deep adjustments in the economic structure, seeking re-industrialization with advanced manufacturing as the core, and hope to revitalize the manufacturing industry and expand exports. Emerging economies and developing countries are also accelerating the development of industries and technologies with their own comparative advantages. China's traditional advantageous industries will face more intense international competition. Once again, the international trade environment is not optimistic. The financial crisis has intensified trade protection. The color of trade protectionism has become increasingly strong, trade friction has increased significantly, the world trade environment has become increasingly complex, and the total volume of international trade will show a downward trend. Aluminum silicate fiber cotton
Domestic situation: With the implementation of the country's proactive fiscal policy and prudent monetary policy, the risks and challenges faced by China's refractory industry are also obvious. First, the ultra-conventional fixed asset investment, which is based on large-scale infrastructure construction, has been transferred to the downstream deceleration channel, and the domestic economic growth rate will be reduced. The overall growth rate of fixed asset investment has fallen sharply, and the demand for steel, cement, glass and other industries will decline, which inevitably will affect the market of refractory materials. Second, the monetary policy has changed from moderately accommodative to stable, the prices of raw materials may continue to rise, the cost of production factors in the real economy will gradually increase, and the profit margin of production and operation of the industry will be squeezed. Third, the constraints on resources and environment will be further tightened. With the government's efforts to strengthen resources, energy and environmental management, the constraints on the production of refractory industry are becoming more and more obvious. The task of energy conservation and consumption reduction in the whole industry, pollution control and emission reduction is very arduous. The tight situation of some refractory raw materials is also difficult to alleviate in the short term.
Industry situation: From the perspective of China's refractory industry itself, although the progress has been made in recent years, the current situation of the whole industry still has many unsuitable places compared with the development of various industries in the national economy, especially the high-temperature industry. There is also a certain gap. In addition to the aforementioned problems, the industry is generally over-capacity, low industrial concentration, and low resource utilization. We should especially recognize that as a global refractory production and consumption country, despite the large capacity of refractory products, There are few high-tech varieties, and the proportion of “green new” refractory products is low; in the face of international markets with high potential, there are not many high-grade, high-tech, high value-added products; high proportion of common products, amorphous The proportion of refractory products is low. In addition, the overall level of technological innovation and clean production in China's refractory industry is also lower than the international advanced level.
The main tasks of the future: China's refractory industry during the "Twelfth Five-Year Plan" period, opportunities and challenges coexist. We must recognize the situation, strengthen our confidence, and firmly establish a global consciousness, an international vision and a strategic thinking. Under the guidance of the scientific concept of development, we should accelerate the transformation of development mode as the main line, study new ideas, formulate new measures, create new situations, and earnestly Live and use important strategic opportunities, and build on the sustainable development of the industry on the basis of structural upgrading, product optimization, energy co
Warmly celebrate the establishment of the Joint Research Institute of Chemical Industry Furnace with Beijing University of Chemical TechnologyTime of issue : 2013- 11-06
On November 3, the opening ceremony of the joint research institute of Beijing Chemical Industry University and Zibo Huaqing Refractory Material Co., Ltd. was held in Zibo Huaqing Refractory Material Co., Ltd. There are 7 people from Peking University, Wang Shoujie, general manager of Huaqing Company, Wang Jintang, director of sales department of Enterprise Development Department, and more than 20 people including the company's leading team members and chief engineer. The ceremony was hosted by Minister Wang Jintang.
At the listing ceremony, on behalf of the company, Mr. Wang expressed his warm welcome to the dean of the University Building Materials College. He also affirmed the significance of establishing an internship base in the future and expressed his hopes and wishes. Subsequently, Mr. Wang also delivered a warm speech, introduced the basic situation, development history and future planning of Zibo Huaqing Refractory Co., Ltd., and expressed sincere gratitude for the sincere cooperation with Beijing University of Chemical Technology. Finally, the opening ceremony was successfully concluded in a warm and friendly atmosphere.
At the symposium after the opening ceremony, Mr. Wang introduced the current situation of the company and the future development strategy direction to the leaders of Peking University. The two sides conducted harmonious talks and exchanges on further in-depth teaching and research cooperation.
The success of the event marked a solid and important step in the company's cooperation with schools and enterprises. After that, the two sides will further strengthen cooperation and jointly cultivate high-quality and skilled talents that meet the needs of the modern society. At the same time, these outstanding talents will be enriched into the team of our company's technical personnel, injecting a steady stream of vitality and vitality for the long-term development of our company.
China Refractory Industry Association work dynamicsTime of issue : 2013- 12-06
1. The evaluation of industry credit rating is progressing smoothly.
Carrying out the evaluation of industry credit rating is an important measure to implement the scientific development concept, enhance the industry's credit awareness, standardize the market order of the industry, establish a good market environment for honest management, and ensure the healthy development of the industry. Since March 15, 2011, the China National Association for the Advancement of Letters (2011) No. 5 document “Notice on Carrying out the Credit Evaluation Work of the Refractory Industry” has been issued, and this work has received positive response from the majority of member units and industry players. Vice Chairman of Sinosteel Refractory Company, Sinosteel Luo Naiyuan, Haicheng Houying, Tangshan Shichuang, Tongda Refractory, etc., Zhejiang Zili, Henan Chunsheng, Zhengzhou Zhendong and other executive directors and Shandong Wanqiao and other dozens of companies An application form for applying for evaluation has been submitted to the Association, and Zhengzhou Zhendong Company has completed the preparation of the required materials for the declaration. There are also some non-member companies that have also submitted requirements for participating in the industry credit rating evaluation, and are actively following the procedures of “first-in, first-re-enrollment”.
The deadline for applying for participation in the industry credit rating is May 31, 2011. It is expected that all member companies, especially the association directors, executive directors and presidents, will register voluntarily within a limited time and carefully prepare the required materials. .
2. The Association earnestly organized a survey on the “Promotion of Refractory Industry Structure Upgrade Policy Measures”
According to the Interim Measures for the Administration of Industrial Policy Projects of the Entrusted Industry Associations of the Ministry of Industry and Information Technology, the China Refractory Materials Association undertook the research project on “Research on Policy Measures for Promoting the Upgrading of Refractory Industrial Structures” managed by the Industrial Policy Department of the Ministry of Industry and Information Technology. In order to ensure the progress of the research work and the quality of the project, on the basis of inquiring about the materials, collecting information, and earnestly preparing for the preparatory work, the Association organized the first plenary meeting of the research team on March 1, 2011, in the executive meeting of Xu Dianli. Under the auspices of the vice president, the leaders of key key enterprises participating in the conference, the heads of scientific research institutes and industry experts, according to the requirements of the Ministry of Industry and Information Technology, combined with the actual situation of the industry, after a heated and serious discussion, determined the framework structure of the research report, the section The division and the key content of each part also clarify the responsible unit and responsible person of the research project after the decomposition. At present, the research work of each responsible unit is progressing according to the schedule. It is expected that the drafting of the manuscript, editorial and research reports will begin in late May.
3. Research on the development of refractory raw materials commissioned by the Materials Department of the Ministry of Industry and Information Technology
In order to further implement the "Notice of the General Office of the State Council on the adoption of comprehensive measures to control the exploitation and production of refractory (high-aluminum) clay" (Guo Ban Fa  No. 1) document, the Department of Raw Materials Industry of the Ministry of Industry and Information Technology In the process of formulating the “Management Measures for the Entry of Fire-Resistant (High-Aluminum) Clay Industry), we wrote to the China Refractory Industry Association on March 2 and March 31, 2011, and commissioned the association to organize fire-resistant (high aluminum). Research on the development of clay, magnesite and refractory industry. After accepting the entrustment, the association has communicated with relevant local associations. It plans to collect information in the early stage and understand the situation. Organize experts in the industry to conduct special seminars and complete research tasks.
4. Preparations for the International Conference on the Production and Application of Refractory Materials in China are being carried out in an orderly and orderly manner.
The China International Conference on Refractory Materials Production and Application, jointly sponsored by China Refractory Industry Association and China Iron and Steel Industry Association, will be held at the White Swan Hotel in Guangzhou from May 11th to 12th, 2011. The preparatory work for the preparatory work undertaken by t
Mill equipment follows the development trend of refractory materialsTime of issue : 2014- 05-06
Refractory materials are indispensable in many industries in the country and play an important role in the development of the country. Among them, the steel industry is the largest consumer of refractory materials. In 2010, China produced 62.67 million tons of crude steel. According to the calculation of 20 kilograms of refractory material per ton of steel, the demand for refractory materials for steel in China is about 12.53 million tons. In 2011, it was around 12.81 million tons. The cement industry is the second largest refractory material consumption field. In recent years, due to the development of highway construction, construction, airport construction, etc., the development of the cement industry is also in the forefront.
In recent years, under the strong pull of high-temperature industries such as steel, cement, glass and non-ferrous metals, China's refractory production increased from 14.77 million tons in 2003 to 28.08 million tons in 2010, with a compound annual growth rate of 9.6%. The output of shaped refractories has reached more than 1/3 of the total output. At the same time, the export volume of refractory products also increased significantly, from 827,000 tons in 2003 to 1,792,800 tons in 2010, a compound annual growth of 11.7%.
There are several methods for producing refractory products:
The refractory material differs depending on the degree of compactness and shape of the product, and there are a sintering method, a fusion casting method, and a melt blowing method. The sintering method is to pre-burn a part of the raw materials, crush and sift, and then mix with the raw materials according to a certain ratio, after molding, drying and firing. The purpose of raw material calcination is to burn off the water, organic impurities, and sulfate decomposition gas to reduce the firing shrinkage of the product and ensure the accuracy of the product dimensions. The raw materials need to be sieved after crushing and grinding, because the blanks are graded by powders of different particle sizes to ensure the closest packing to obtain a dense body. The smelting method is a process in which the raw materials are mixed and finely ground by the ingredients, melted at a high temperature, directly cast, cooled and crystallized, and annealed to form a product. Such as casting mullite bricks, corundum bricks and magnesium bricks. Their bodies are dense, with high mechanical strength, high temperature structural strength, good slag resistance, and the use range is constantly expanding. The melt blowing method is a method in which the ingredients are melted and then sprayed with high-pressure air or superheated steam to disperse them into fibers or hollow spheres. The products are mainly used as lightweight refractory and heat insulating materials. In addition, it can be made into a powdery or granular unshaped refractory material. It can be cemented with a binder such as tar, asphalt, cement, phosphate, sulfate or chloride when it is used. It can be used directly without molding and sintering.
Regardless of the preparation method, the mill equipment plays a very important role, because only the refractory processing raw materials can be processed into a fine powder of different fineness after being ground by a mill to fully integrate the various materials. , processing and production. Zhengzhou GM constantly investigates the market and continuously improves and perfects the existing mill equipment, so that it can adapt to the development of the times and meet the different needs of the market. Zhengzhou GM currently supplies different types of mill equipment such as Raymond Mill, high pressure suspension roller mill, high pressure mill, high pressure micro powder mill and superfine mill on the market. Each of the different types of equipment can be ground to produce different fineness of finished powder, 80 mesh - 425 mesh, 500 mesh - 2000 mesh, the finest can reach about 2500 mesh, which can fully meet the processing of refractory raw materials. demand.
Nowadays, the demand for refractory materials has increased, and the equipment of the mine-grinding mill has a broader development market. Therefore, the general mill equipment should keep up with the development trend of refractory materials, seize the opportunity of each development for itself, make its own enterprise grow stronger, and provide more favorable help for the development of the country.
High-temperature temperature top-fired hot blast stove energy-saving technical standards publishedTime of issue : 2014- 06-04