Forward-looking Industry Research Institute released "2011-2015 China's valve manufacturing industry production and sales demand forecast and transformation upgrade analysis report" shows that as of the end of 2011, China has more than 1 sized valve companies (annual revenue of more than 20 million yuan), the industry to achieve Sales revenue was 148.368 billion yuan, an increase of 26.86% year-on-year; total profit was 13.763 billion yuan, an increase of 32% year-on-year.
At present, China's valve manufacturing industry has been able to provide users with about twelve categories, more than 3,000 models, more than 4,000 specifications of the product, its performance parameters range from vacuum valves to 600Mpa ultra-high pressure valves, the temperature from cryogenic -196 Celsius to high temperature 570 degrees Celsius. Its main products have basically been able to meet the needs of the domestic market, and the valve market's rate of complete sets, complete sets of levels and complete sets of capabilities have greatly improved, the domestic valve has already had a certain foundation for revitalization.
However, China's valve industry is still dominated by small and medium-sized enterprises. At present, the competition in the industry is mainly the competition of low-end products. Informal competition means are disrupting the development of the market, causing greater damage to the valve manufacturing industry.
Zhang Xiaolan, researcher of the valve manufacturing industry of the Industry Research Institute of Forward Looking Industry, said that with the acceleration of the pace of reorganization of the valve industry, the future industry will be a competition between valve product quality safety and product brands, and the products will be high-tech, high-parameter, highly resistant to corrosion and have a long lifespan. The direction of development, and continuously improve the level of valve products and grades, China's valve manufacturing industry in a huge demand environment, will show a better development prospects.
Roll Crusher Applications
Roll Crushers are simple in design and construction, long-lasting, economical, and versatile. Roll crushing surfaces operate at a fixed distance apart, as opposed to the continually changing distances in a jaw or Cone Crusher. Product size is much more consistent. Both oversized pieces and fined are minimized. Wet, sticky materials are more easily handled.
The rolls act as flywheels, contributing to smooth operation and efficient use of power. Roll crushers are low in profile and relatively easy to install. They can be fed with a minimum of headroom, or even choke fed. Adjustments are simple. Internal parts are readily accessible.
Typical feed materials for Roll Crushers include: bauxite, cement clinker, chalk, cinders, clay, coal, glass, gypsum, limestone, burnt lime, rock salt, sandstone, shale, sulfur ore, sea shells, and sewer sludge clinker. Single Roll Crushers, sometimes called lump breakers, can also be used for breaking frozen or agglomerated materials.
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