Refractories enterprises facing difficulties and countermeasures

At present, the production environment of refractory materials is not optimistic. The main reason is that the products produced by high-temperature industries such as steel, nonferrous metals, glass and cement are in surplus. The market for refractory materials is reduced. The competition among similar enterprises in the industry is harsh. At the same time, Concerned that the financing difficulties, coupled with the difficulty of funds back to the production of enterprises has brought great difficulty, if we encounter several bad debts bad debts of users, enterprises will be difficult to survive. Thus, refractory companies how to survive and develop? Has become a topic of discussion in the industry.



In the current severe situation, refractories enterprises should also maintain a calm state of mind, to judge the situation with the new normal, pointed out that enterprises should face the problems and put forward countermeasures and suggestions:

First, the major enterprises, especially high-tech enterprises, should mainly focus on technological innovation, and give priority to considering the functionalization of refractory materials as a precondition, planning technical solutions for customers, and solving the energy-saving and environmental protection problems in their process or furnace equipment, and extending their use life.

The second is to recognize and see the adverse consequences brought by the severe competition of similar homogeneous enterprises to the enterprises and industries. With the leading products of coke oven silica brick, coal chemical industry with high-chrome brick, electrolytic silicon carbide with silicon carbide brick, cement kiln with the past of chromium-containing materials to the current spinel series of materials, ladle castable, heating Furnace castable series materials, the production of its own high-tech products to solve the user's key technical equipment problems, and equipment imported refractory configuration, instead of imported materials to promote technological progress, but the results of long-term competition everyone Not much money, low profit production. It is very necessary to conduct various exchanges and exchanges in various fields between refractory enterprises. Of course, such cooperation is voluntary. Competition is inevitable in the market and has made a contribution to society.

Third, in the current market situation, how to develop the business, is to enter or return temporarily suspended? All enterprises should be based on their own circumstances, depending on the degree of dependence on the market users of your products, according to the company's technology and equipment, management team, technical strength, capital strength and other aspects of a comprehensive choice.

Refractory material production process introduced

According to the degree of compactness and shape of the product, there are sintering method, casting method and melt injection method. Sintering method is the raw materials of raw materials pre-baked clinker, broken and sieved, and then by a certain ratio and raw materials mixed, through the molding, drying and firing.



Casting method is the raw materials through the ingredients mixing and fine grinding process, in the high temperature melting, direct casting, cooling crystallization, annealing products. Their body is dense, high mechanical strength, high temperature structural strength, good slag resistance, the use of the range continue to expand.

The melt blown method is a method in which a batch is melted and then blown into a fiber or a hollow sphere by blowing it with high pressure air or superheated steam. Products are mainly used for light refractory, heat insulation materials, but also made of powder or granular amorphous refractory, temporary use of tar, asphalt, cement, phosphate, sulfate or chloride and other bonding agent cement, without Forming and sintering directly.

Characteristics of Global Refractory Industry Development

At present, the global production of refractory materials is about 45 million tons, China's refractory production accounts for about 65% of the world's total refractories, other production is mainly concentrated in the EU, CIS, the United States, Japan and South Korea and other countries and regions.



Global refractory industry development has the following characteristics:

1.Through the mergers and acquisitions, reorganization and elimination of backward to improve the concentration of refractory industrial production

Developed countries since the nineties of last century, mergers and acquisitions, restructuring and operation in the market economy in the natural phase out, so that the rapid increase in production concentration, such as Japan in the 1950s, more than 100 refractory production enterprises, for decades, through mergers and acquisitions , Reorganization and collapse in the market economy tide, trademark cancellation and other forms, so far, only more than 60 refractory enterprises. Another example is the 1970 US 7 independent refractory production enterprises, through several mergers and acquisitions, merged into a company in 2001, that is, "RHI refractories."

2.The total amount of refractory material gradually weakened, the product added value steadily improved
In the premise of the relatively stable demand for refractory materials, due to the continuous adjustment of refractory variety structure, product quality continues to improve, will reduce the demand for refractory materials, but the value-added products is still steadily improving.

Developed countries such as the United States, Japan and Europe have shown a positive growth trend in the growth rate of sales of refractories and higher than the growth rate of refractory production. In particular, some countries refractory production declined year by year, while sales revenue grew year by year.



3.Refractory industry to the formation of large enterprise groups direction

At present, through hundreds of mergers and acquisitions and corporate self-development, refractory industry formed a number of large enterprise groups. Large-scale enterprise groups to make the degree of intensive production, industrial chain gradually extended, and use its strong economic and technological strength and brand advantage, in order to seek greater profit margins.

China Glass Refractory Materials development analysis on the overall situation

Over the past decade, China's glass industry with refractory materials have made great progress, integrated in the large-scale float glass kiln kiln, from 3 to 4 years to 5 to 8 years, and all the materials to achieve the localization, greatly Narrowing the gap with the advanced level of foreign countries, for the glass industry with the future development of refractories, laid a solid foundation. But with the further development of the glass industry needs and foreign advanced level, there are still many problems to be solved.

China's accession to the WTO, foreign high-quality low-cost products can drive straight into the same time, China's quality products into the international market has become more convenient. Seize the opportunity to seriously analyze China's glass industry refractory problems and the gap with the world's advanced level, to take the right countermeasures, as soon as possible to narrow the gap with the developed countries, catch up with the world's advanced level, which will be our response to WTO challenges Best response. The following will be based on the current main problems, combined with the future development of thinking, put forward some suggestions.



First, bigger and stronger with strong technical innovation strength and international competitiveness of the Ministry of Industry and Trade integration of large supporting refractory leading enterprises, so as to enhance the overall level of the industry, driving the development of the industry as the dominant force.
At present, the glass industry refractory industry there are many enterprises, small scale, decentralized, low-level redundant construction, their own war, the market disorderly competition and so on, resulting in the overall level of the industry to improve slowly. In recent years, China has built more than 30 refractory refractory enterprises, these enterprises in recent years despite the majority of different degrees of progress, but most of the smaller production scale, weak technical force, backward technology and equipment , Product quality is difficult to guarantee. Sintered refractories have a similar situation. Thus forming a common product over the one hand, on the other hand high-end products still need to import the situation, and because of these enterprises cheap dumping, resulting in market chaos, a backbone enterprises to improve product quality barriers. Therefore, there is an urgent need for strength of the industry and trade integration of refractory companies,just like Zhengzhou Shixing Special Refractory Co., Ltd.It is guaranteed to provide reliable quality refractory refractory materials. This kind of company can use its own strong strength to integrate resources, bigger and stronger, and guide the industry to continuously improve the overall level, climb the new peak. The so-called bigger is the company to have their own control of a certain size of cast refractories, alkaline refractories, silica brick, zirconium, zirconia corundum, sillimanite, mullite refractories and new unshaped refractory production base And supporting system, can provide the whole kiln quality supporting refractory materials to meet the entire glass industry, including the glass fiber industry, the demand for refractories. The so-called strong, is to rely on the new strong, make full use of strong technical advantages, continuous technological innovation, enhance the overall level of the industry, making it an international competitiveness of large refractory supporting companies.

Second, the design of glass melting furnace, the production of refractory materials, the operation of the furnace, maintenance, use and refractory production and use of scientific research between the four closely, is to extend the kiln kiln, as soon as possible to reach the international advanced level One of the important conditions.
To extend the kiln kiln must have two conditions: First, the integration of industry and trade supporting the refractory company, to provide all kinds of high-quality refractory refractory materials; the second is to design, production, use and research Close combination, to play their respective advantages, so that the whole kiln refractory configuration more reasonable, especially the kiln more than 8 years old kiln, has not entirely rely on to improve the quality of refractories can be achieved. Superb design, careful operation, maintenance and management of quality and supporting the supply of refractory materials must be closely integrated in the past, the kind of each tube for a period of non-communication, disconnected from each other, the lack of the overall concept of the situation is the long melting of the kiln kiln One of the important reasons.

Selection and Masonry for Glass Furnace Refractory

1. dense chrome brick

It has the best anti-high temperature E glass erosion performance, the erosion of the glass is basically no pollution, it has become E glass unit kiln preferred high-quality refractory brick.

The main technical indexes are Cr2O3 content> 94%, porosity <15 bulk="" density=""> 4.24g / cm3, and the erosion loss is only 1/10 of that of dense zirconium brick. The In the E glass kiln kiln unit kiln directly contact the high temperature glass liquid melting part of the wall, the melting part of the high temperature parts of the bottom, the main channel wall and the bottom of the pool, the transition channel wall.



2. dense zirconia brick

The corrosion resistance of the brick is slightly lower than that of the dense chrome oxide brick, and the isostatic pressing method is used. The technical index is ZrO2> 65%, the apparent porosity is less than 2.0%, the bulk density is about 4.25g / cm3, E glass in the temperature of more than 1370 ℃ there is erosion. The bottom of the melting part, the transition path, the bottom of the forming channel, and the flow path and the trough and the trough of the molding glass are used in the E glass kiln. In addition, dense zircon bricks are also used as a backing brick for dense chrome bricks.

In recent years, many refractory enterprises in China have also introduced foreign technology and equipment, but also produced the use of isostatic pressing molding sintered dense zirconium brick, has been the domestic glass, glass furnace furnace part of the application.

3. Standard zircon brick

The brick ZrO2 content of about 66%, bulk density of 3.7g / cm3, with good thermal stability and anti-peeling. The use of the powder in the erosion of the more serious mouth of the mouth of the mouth and the back wall, melting furnace observation hole brick and access to the flame of the chest wall and roof brick, burner brick. But there are also the use of AZS burner brick and the use of mullite brick for the transition brick and kiln side of the gap brick.

4. sintered mullite tiles

The chemical composition of the brick is Al2O3> 74%, SiO22.2%. Bulk density of 2.5g / cm3, the main purpose is the standard chrome lining brick, melting the chest wall and the front wall, access flue lining brick, large arch and foot outlet mouth outside the brick, heat exchanger entrance flue outside the wall Wait. There is also a mullite brick which is melted by mullite crystal and has better anti-high temperature creep and heat shock resistance. It can be used as kiln large and flame space chest wall. The effect is very good, the current localization has also been successful.

5. Fused zirconia corundum brick (AZS brick)

The chemical composition of the brick is ZrO234%, Al2O349.2%, SiO2 15.9%. Bulk density of 3.85g / cm3, the main purpose is to melt the mouth of the mouth of brick and brick mouth.

6. Fused chrome corundum brick

The chemical composition of the brick is Cr2O328.3%, Al2O358.3%, MgO, Fe2O35.2%. Bulk capacity of about 3.4g / cm3. Mainly used in the heat exchanger at the entrance of the flue interface brick.

The necessary road for Refractory Materials Industry in China

Last year, China's energy-saving environmental protection industry output value to reach 4.5 trillion yuan, and proposed to strengthen energy-saving technological transformation, the implementation of pollution control key projects to promote the park recycling, speed up urban environmental infrastructure construction, green building operations. The development of energy-saving environmental protection industry can be described as multiple purposes, both can help to achieve ecological civilization, promote long-term economic growth, sustainable growth, but also improve people's living environment and improve people's quality of life. Therefore, the development of energy-saving environmental protection industry, is to take the road of sustainable economic development.



Energy saving and environmental protection Refractory material is a new industry, is to adapt to people's consumption structure of a new technology integration of the industry. The development of energy-saving environmental protection refractory industry in line with the world trend. People need fresh air, clean water, non-polluting food, people need a good living environment. This is the development of energy-saving environmental protection refractory industry has become the fundamental reason for the world trend and the fundamental driving force. At the same time, we should see that the development of energy-saving and environmental protection refractory industry itself, but also the need for continuous production of technical factors, the result is not only to promote energy-saving environmental protection industry's own development, but also to accelerate the country's technological progress is also of great benefit.

Energy-saving environmental protection refractory industry market size is very large, for a long time, developed countries accounted for one of the main share. The world's major developed countries have always attached great importance to the development of energy-saving environmental protection refractory industry. China to develop energy-saving environmental protection refractory industry in line with the world trend, to optimize the industrial structure and consumption structure has an important role.



As we all know, the German government and the market in promoting energy-saving environmental protection refractory industry development is unique, is sparing no effort to strengthen the enterprises and residents of the awareness of energy conservation and environmental protection, in the greatest possible circumstances the development of environmentally friendly technologies and environmentally sound products and production processes. These two points are particularly worth learning from China. Some of China's enterprises and individuals awareness of energy conservation and environmental protection is not strong, governments at all levels should further increase the concept of energy conservation and environmental protection efforts to promote the concept of energy conservation and environmental protection really enjoys popular support, so that energy-saving environmentally friendly refractory products, consumer demand will increase, the results Is conducive to energy-saving environmental protection refractory products to expand the scale of production and energy-saving environmental protection technology development, improvement and promotion.

Analysis on the Development of Glass Industry Refractory in China

Over the past decade, China's glass industry with refractory materials have made great progress, integrated in the large-scale float glass kiln kiln, from 3 to 4 years to 5 to 8 years, and all the materials to achieve the localization, greatly Narrowing the gap with the advanced level of foreign countries, for the glass industry with the future development of refractories, laid a solid foundation. But with the further development of the glass industry needs and foreign advanced level, there are still many problems to be solved.

After China accession to the WTO, foreign high-quality low-cost products can drive straight into the same time, China's quality products into the international market has become more convenient. Seize the opportunity to seriously analyze China's glass industry refractory problems and the gap with the world's advanced level, to take the right countermeasures, as soon as possible to narrow the gap with the developed countries, catch up with the world's advanced level, which will be our response to WTO challenges Best response. The following will be based on the current main problems, combined with the future development of thinking, put forward some suggestions.



First, bigger and stronger With strong technical innovation strength and international competitiveness of the Ministry of Industry and Trade integration of large supporting refractory leading enterprises, so as to enhance the overall level of the industry, driven by the development of the industry as the dominant force.

At present, the glass industry refractory industry there are many enterprises, small scale, decentralized, low-level redundant construction, their own war, the market disorderly competition and so on, resulting in the overall level of the industry to improve slowly. In recent years, China has built more than 30 refractory refractory enterprises, these enterprises in recent years despite the majority of different degrees of progress, but most of the smaller production scale, weak technical force, backward technology and equipment , Product quality is difficult to guarantee. Sintered refractories have a similar situation. Thus forming a common product over the one hand, on the other hand high-end products still need to import the situation, and because of these enterprises cheap dumping, resulting in market chaos, a backbone enterprises to improve product quality barriers. Therefore, the urgent need for strength of the industry and trade integration of the refractory company, to ensure the quality of reliable quality supporting refractory materials. This kind of company can use its own strong integration of resources, bigger and stronger, and guide the industry to continuously improve the overall level, climbing new peaks. The so-called bigger is the company to have their own control of a certain size of the cast refractories, alkaline refractories, silica bricks, zirconium, zirconia corundum, sillimanite, mullite refractories and new unshaped refractory production base And supporting system, can provide the whole kiln quality supporting refractory materials to meet the glass industry, including the glass fiber industry, the demand for refractories. The so-called strong, is to rely on the new strong, make full use of strong technical advantages, continuous technological innovation, enhance the overall level of the industry, making it an international competitiveness of large refractory supporting companies.

Second, the design of glass melting furnace, the production of refractory materials, the operation of the furnace, maintenance, use and refractory production and use of scientific research between the four closely, is to extend the kiln kiln, as soon as possible to reach the international advanced level One of the important conditions.



To extend the kiln kiln must have two conditions: First, the integration of industry and trade supporting the refractory company, to provide all kinds of high-quality refractory refractory materials; the second is to design, production, use and research Close combination, to play their respective advantages, so that the whole kiln refractory configuration more reasonable, especially the kiln age of more than 8 years of high-grade melting pot, has not entirely rely on to improve the quality of refractories can be achieved. Superb design, careful operation, maintenance and management of quality and supporting the supply of refractory materials must be closely integrated in the past that the tube of a section, do not communicate with each other, out of touch with each other, the lack of the overall concept of the situation is the long melting of the kiln kiln One of the important reasons.

The current problem is how to implement? Who will be implemented, first of all by the combination of the four parties? According to past experience, with strong technical strength of the industry and trade integration of refractory materials supporting the company most suitable, on the one hand, Refractory material performance and data to master, you can recommend to the design and use of various ancillary programs to choose from; on the other hand to the use of the Department to provide the required variety of quality supporting refractory materials, and tracking the use of, constantly To provide users with services to help solve the problems that may arise in the use of the Quartet string together, often communicate, complement each other to form a whole, together to improve the kiln kiln and the relevant technical and economic indicators and efforts. Of course, industry associations should also give full play to the industry self-discipline and industry coordination functions, the industry elite to achieve this goal together.