Industry News

In the field of cement production, the cyclone is a key equipment, and its performance has a vital impact on the efficiency and stability of the entire production process. As a core component, the inner barrel of the cyclone has long been facing harsh working conditions such as high temperature, dust erosion and complex chemical corrosion. The traditional heat-resistant steel inner barrel has gradually revealed its limitations in dealing with these challenges, and ceramic materials, with their unique performance advantages, are gradually becoming a new choice for the inner barrel of the cyclone, triggering a far-reaching material change.

Heat-resistant steel can maintain good mechanical properties within a certain temperature range, and its alloy composition gives the material a certain resistance to high-temperature oxidation and load-bearing capacity. In the inner barrel of the cyclone, commonly used ones such as ZG30NI25Gr20, etc., have become the mainstream material of the inner barrel of the cyclone for a long time in the past. However, due to harsh working conditions such as high temperature, dust erosion and complex chemical corrosion, the service life of the heat-resistant steel inner barrel is short. The service life of C5 and C4 inner tube hanging pieces is generally between 12 and 18 months, and the service life of products from different manufacturers and batches varies greatly.

Ceramic materials are a type of refractory material with excellent high temperature resistance. Its refractoriness is generally above 1600℃, and its load softening temperature is also around 1400℃. Even in the high temperature environment of 800-1200℃ in the cement kiln preheater, the ceramic inner tube can work stably. Ceramic materials have extremely high surface hardness, which makes their dust erosion resistance far better than heat-resistant steel. In the harsh environment of high temperature and high dust in the cyclone, the ceramic inner tube can effectively resist the continuous erosion of dust particles, greatly reduce the wear rate, and extend the service life of the equipment. The raw materials of ceramic materials are widely distributed and rich in sources. After large-scale production, its cost can be greatly reduced. Compared with heat-resistant steel, the cost of preheater ceramic inner tubes of the same specifications is lower.

After continuous improvements to ceramic inner tubes in the past few years, more and more cements choose to use ceramic inner tubes. The material change of the cyclone inner tube from heat-resistant steel to ceramic is an inevitable choice for the industrial field to adapt to the development trend of high efficiency, energy saving and environmental protection. Our company is also constantly studying ceramic blow bars, hammer heads and preheater inner tubes, and has achieved some results. We will strive to achieve greater breakthroughs as soon as possible and produce more high-quality wear-resistant products for cement plants.