Inst Chinese Cement Industry and wear-resistant material

March 28, 2010, held in Shanghai the 2010 international cement Week "international cement industry grinding technology Forum" wear experts Inst do entitled "China's cement industry, and wear-resistant materials report The following is the full text of the report:

Leaders, distinguished delegates, ladies and gentlemen:

The very proud to represent the wear industry to participate in "organized by the China Cement Net International Cement Week 2010, the following, I will be the theme of" China's cement industry with wear-resistant materials, wear industry and cement industry both relationship, wear industry, as well as its progress, especially in these two industries in the future and how to strengthen cooperation to express some personal views. I will focus on the following aspects: one, wear-resistant materials in the cement industry; Second, the development of the cement industry wear industry requirements;, wear-resistant materials and the latest progress of the technology.

  A wear-resistant materials in the cement industry

The wear-resistant materials in the cement industry is mainly reflected in the following aspects: First, it is necessary to ensure normal operation of the cement equipment; Second, it is important to reduce the cost of cement production; Third, it is the latest national pilot and energy saving, emission reduction measures.

Consumption of wear parts in the building materials industry, mainly reflected in the following processes: mining, crushing, grinding, conveying. Cost of consumption in the cement industry, of wearable media consumption and electric consumption accounted for a large proportion, from the the wear industry point of view, wearable pieces in a greater proportion of the mining domain, but relatively speaking, the mining industry has not The cement industry and made so hot. The cost of the cement plant ball mill consumption proportion; wearable media consumption ratio of 2006 to 2008, the country's consumption of grinding balls is mine, followed by cement, electricity and so on. Recent years, grinding balls, lining improving the quality of the cement industry to reduce consumption costs also played a big role.

Wear industry, the development of the cement industry, the new requirements

In recent years, the development of the cement industry wear industry update requirements. First, with the development of the cement industry, its the wear media and spare parts number needs greatly increase the variety and higher quality requirements; Second, in recent years, the updates and Production of cement equipment (dry and vertical mill) the development of wear-resistant materials and technology update requirements; wear industry also very clear cement industry energy saving, emission reduction and environmental protection task on its proposed new requirements, itself also constantly improve and perfect.

Third, wear-resistant materials and technology, the latest progress

The latest progress of the wear-resistant materials and technology for wearable industry mainly in the following aspects: First, the increasingly sophisticated variety of wear-resistant materials in the iron and steel, serialization and standardization. Because on traditional wear spare parts consumption is still material costs. According to statistics, the year the consumption of the entire wear industry wearable spare parts around 300 million metric tons, including grinding balls about 55%, lining 11%, about 10% of hammerhead. Grinding balls, liner, hammer wear industry leading products, they are mainly made of cast iron, steel and other materials, these traditional varieties from the past to the present has changed a lot. For example, in one or two decades ago, the ball mill grinding balls main application is low chrome cast ball, in a large proportion of the grinding process of mining, cement, power and other industries. In recent years, the cement industry, ball mill grinding balls mainly in the main high-chrome cast ball past tons of cement the ball consumption to more than one hundred grams, and now can be reduced to less than 20 grams. Therefore, the control effect of consumption of the entire cost of the cement industry is very large. In addition, the ball mill cast ball also increasingly serialization and standardization. 2009, casting grinding balls have been included in the national standards, the building materials industry in this regard, there are special standards, wear industry standardization, laid the foundation for the selection of the cement industry.

Second, non-metallic, ceramic, polymer widely used and development. With the update of the cement equipment, cement industry is increasingly demanding high wear-resistant materials. Usually steel wear-resistant materials have limitations in the strength and toughness, high hardness, toughness decreased, However, in a new wear-resistant materials, the application non-metallic, ceramic and composite materials are being gradually increased, in general, This is a great improvement.

Third, surfacing, wear-resistant steel and composite wear-resistant materials and technology gradually industrialized. Past, non-metallic materials, ceramic materials in the school are all theoretical research, and now they have been successfully used in the ceramics industry, and these services for the cement industry, mining industry and increasingly sophisticated.

Fourth, surface engineering, nano-additives argon blowing new technology in the promotion and application of wearable industry gradually

IV Summary

With increasingly sophisticated varieties of steel wear-resistant materials, serialization and standardization in a ball mill grinding balls, mainly low chromium cast iron, chrome cast iron is now gradually has been high chromium cast iron substitution, in the liner and aspects of hammerhead, wear-resistant, low-alloy steel liner has been replaced by high manganese steel. In addition, in the vertical mill grinding rollers, now mostly alloy steel, and surfacing compound inlaid ceramic.

In recent years, the wear industry have done a great deal of improvement in every respect, and now have reached the perfect surface quality, accuracy, workmanship. For example, the liner surface is very rough, in fact, in some conditions better plant through technological innovation, using the latest technology, the accuracy of the liner surface actually fully able to achieve a very high quality standard requirements.

Vertical mill grinding roll past the traditional high manganese steel, alloy steel, hardfacing, using ordinary cast its surfacing can be done directly at the factory, and can also repair the middle. Similar process has been gradually improving in recent years. Like these new materials, such as ceramics, heat-resistant, fire-resistant coatings, wear-resistant composite steel, bimetal composite materials are currently under the pump, pipes, chutes, roll grinding and other areas is a lot of use. On composite wear liners and chute. Traditional direct selection of the steel plate, liner and chute just the surface layer of the high quality requirements of the material, complete with high-quality materials, cost increases, the second is its toughness is not very good, therefore, the use of composite resistance mill liner, in fact a lot of the production process got left surfacing. Of different sizes, according to need to cut its service life can be improved using the technology.

At home and abroad are studying composite grinding rollers. Past the mill roll their life is generally low, especially some of the problems existing in the roller press, slag grinding roller has not been able to be completely resolved. Composite mill roller abroad, some grinding roller high chromium cast iron inlaid mosaic ceramic, plenty of high chromium cast iron, some using three types of composite, so that their life can be typically increased by 3-5 times.

Belgium Duocast vertical mill grinding roller, the service life of the grinding roller is much higher than the life of the ordinary grinding roller. The wear-resistant ceramic piece now has a large number applied to the valve body, pipes, etc. Today, this technology in the wear industry has also been in the use of promotion.

   The wear-resistant materials and technology producers and sound wear industry organizations and development mainly in the following aspects:

1, the gradual improvement of the continuous expansion of the scale of production of wear-resistant materials and technological transformation. With the development of recent years, the wear industry has put out a small foundry mode last impression, Today, the industry has been the emergence of a large number of such Ningguo wearable Plant, the Ningguo letter wearable and Zhengzhou Ding as the backbone of the representatives oriented enterprises through technological innovation, its products, production processes, quality levels have reached advanced domestic, and some even have been a large number of export.

2, wear-resistant materials and product standardization and serialization.

3, wear-resistant materials industry organizations improve and development. Industry for wear-resistant materials, wear Chinese Foundry Association has set up a branch of wear-resistant castings, Today, the building materials industry has also set up a wear-resistant materials and anti-wear technology branch. From the industry's perspective, wear industry hopes to break the cement industry in the past the kind of piecemeal procurement mode, and also want to wear-resistant materials industry increasingly standardized, industry organizations, driven by better future for cement industry .

4, the contact between the cement industry and the wear-resistant materials industry supply and demand partnership and cooperation are increasing.

Thank you!