zhengkuangminingmachineryco. ltd

zhengzhou, China

Product description:zkdeveloped large new dry process cement rotary kiln product with cement research and design institutes in tianjin, nanjing and hefei by using domestic advanced technology, and the product can match 300010000td large new dry process cement production line. The company has a first-rate rotary kiln development, research and design team, perfect test and inspection means and excellent large rotary kiln manufacturing equipment and manufacturing technology, and has formed a complete technology and production system integrating rotary kiln design, manufacture, install and debugging service. It has features of energy saving, high productivity, decarburization whitening, simple structure, long lifespan, easy maintenance, etc. Wet and dry cement rotary kilnapplication industrycement plant, steel mill, chemical plant & incineratoroutput18010000 tdzk cement rotary kiln technical characteristics:kiln body is made of high quality composed of carbon steel or alloy steel plate and automatic welding;tyre, support roller, open gear adopts alloy cast steel;sliding bearing with large gap not scraping tile bearing;transmission device adopts hard tooth surface reducer, flexible diaphragm coupling, dc motor;adopts hydraulic gear wheel;preheater scales were used respectively to veiw of kiln head, and cylinder pressure tight seal;a slow drive device.Cement rotary kiln processeswith the arrival of rotary kilns, cement manufacturing processes became sharply defined according to the form in which the raw materials are fed to the kiln. Raw materials were either ground with addition of water, to form a slurry containing typically 30-45% water, or they were ground dry, to form a powder or "raw meal".

Production description 1. brief introduction of energy saving rotary kiln for cement plant this series of cement industry rotary kiln is the large-size advanced international calcining kiln & furnace. itcan make the production capacity increase by 30%, make the heat consumption reduce by 40%. 2. Features ofenergy saving rotary kiln for cement plant -the cement industry rotary kiln shell design fully take into consideration of the corner at shell flexible supporting to extend the lifetime of refractory bricks and castings. -adopt supporting roller bearing with big diameter and small ratio between length and diameter to improve the reliability. The bearing is automatic self-sligning bearing. -the better sealing effect of new type open gear hood sealing type. -the spring lamination overlying type lexible sealing, double layer spring lamination sealing increase the heat insulation layer to improve the reliability and lifetime. 3. Working principle ofenergy saving rotary kiln for cement plant the cement industry rotary kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the cement industry rotary kiln rotates, material grad-ually moves down towards the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co current), but usually in the opposite direction (counter current). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burner pipe (or "firing pipe") which acts like a large bunsen burner. The fuel for this may be gas, oil or pulverized coal.