Hongxing Presents the Manufacturing Process of Rotary Kiln
19 September, 2012 at 9:35 am in Buy & Sell
The cement rotary kiln with decomposing furnace outside the kiln which is also known as precalcining has become the new direction of the development of the cement rotary kiln due to the high labor productivity, strong operability and good quality of the products. Therefore, improving the production efficiency, improving the control method and designing the intelligent monitoring system of the rotary kiln has very important significance.
The production process of the cement rotary kiln is very complex and the production equipments are diverse. There are large numbers of 1 / O points, and the distribution is dispersed. Therefore, the framework of the control system with reasonable design is extremely important for thefurther optimization of the production process and the technological innovation. There is a wide range of the furnace. According to the different working principles, they can be divided into roller kiln, rotary kiln, shaft kiln. According to the applicable materials, they can be divided into the glass furnace, ceramic kilns, cement kilns and so on. The cement rotary kiln includes the precalciner kiln, preheater kiln, dry kiln, and wet kiln.
From the 1960s to the 1980s, the foreign cement production technology experienced two stages of development. The first stage is from the wet method to new dry process production of the preheater kiln. The second stage is from the precalciner kiln to preheating kiln. In recent years, the world’s cement industry development direction obviously tends to the dry precalciner kiln. The dry process cement production regards the suspension preheater and the decomposition technology outside the kiln as the core. As the professional manufacturer of complete sets of mining machinery, such as flotation cells, HXJQ is always doing the best in products and service.
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The achievements of the modern science and technology and industrial production are widely used in the whole process of cement production so that the cement production has the advantages of high efficiency and high quality to meet environmental requirements. The new dry cement production is modern cement production method with large-scale and automated features, and it also has the modern cement production technology and the corresponding modern management.
When the conventional wet and dry process rotary kiln produces cement clinker, the preheating of raw material is completed in the kiln. As the firing device, the rotary can provide the cross-sectional temperature distribution uniform temperature field and can ensure that the materials have residence time at high temperatures sufficient, which can still meet the requirements.
However, they are not ideal as the heat and mass transfer equipment. The are not suitable for preheated decomposition process which needs large quantity of heat. However, the suspension preheater and the precalcining technology fundamentally change the heat transfer condition of the preheating and the decomposition process of the raw material so that the heat transfer is very fast and the efficiency is very high.