The main ingredient of limestone is calcium carbonate (CaCO3). Lime and limestone are abundant raw materials used in construction materials and industry. Limestone can be directly processed into stones and fired into quicklime. Quick lime CaO becomes slaked lime when it absorbs moisture or adds water. The main component of slaked lime is Ca (OH) 2, which can be called calcium hydroxide. Slaked lime is formulated into lime slurry, lime paste, etc., and is used as coating material and tile adhesive. . Calcium carbonate is a compound with the chemical formula CaCO3. CAS number 471-34-1. It is a common material on Earth and can be found in rocks. It exists in nature as calcite and aragonite minerals. Calcite is a trigonal crystal system, hexagonal crystal, pure calcite is colorless and transparent, generally white, contains 56% CaO, 44% CO2, density is 2.715g / cm3, Mohs hardness is 3, and its properties are relatively brittle. Aragonite belongs to the orthorhombic strain, with rhombic crystals, gray or white, density of 2.94g / cm3, Mohs hardness of 3.5-4, and dense nature. The size of the calcite crystal is very important in the physical properties of limestone. Dense limestone exhibits a low-porosity fine-grained crystal structure with high strength. The density of limestone is about 2.65 ~ 2.80g / cm3, the dolomite limestone is 2.70-2.90g / cm3, and the dolomite is 2.85-2.95g / cm3. Bulk density depends on porosity.
In limestone processing, the application of Vertical roller mill is a typical equipment to promote the large-scale production and production of limestone. In professional lime production lines, the prices of high-quality and efficient Vertical roller mills can be adjusted according to each industry and customer. Demand tailored. As a high-quality manufacturer committed to providing a complete set of powder production line solutions, SBM heavy machinery will continue to adhere to the business philosophy of quality and service, and continue to provide high-end and efficient Vertical roller mill equipment for the limestone industry.
For a complete limestone Vertical roller mill production line, the SBM heavy machine team, gratitude, professionalism, dedication, and integrity of the professional craftsman spirit are devoted to the research and development and manufacturing of milling equipment. In the field of limestone milling, SBM The professional production line solution provided by the machine helps more customers increase the application value of limestone, improve the market competitiveness of the enterprise, and create richer profits and value. It is a trustworthy high-tech production enterprise.
For large-scale limestone milling, the application of Vertical roller mills is relatively wide and professional. With the expansion and development of the market, large-scale milling has become a market trend, and more and more competition will force more The company is determined to introduce a large-scale milling system to help limestone improve production efficiency and market value. The limestone vertical grinding mill manufactured by SBM Heavy Machinery has a high-end milling process, which integrates drying, grinding, classification, and transportation, which can effectively solve the problems of low production, high energy consumption, and high maintenance costs of ordinary mills. It is a mainstream equipment focusing on limestone, cement raw material, clinker, barite, calcite and many other industries. It is also a favorite supplier of limestone powder production line.
The price of the product needs to be customized according to the specific site of each customer. As a large-scale modern mill manufacturer, SBM heavy machinery does not stick to tradition, but also has the spirit of modern artisan manufacturing. Based on the specific milling requirements of each customer, we customize The selection of the limestone Vertical roller mill production line is more professional, and the price of the lime production line is more in line with the actual needs of each customer. If you want to know more, please feel free to visit and understand.
Introduction to the working principle of the limestone Vertical roller mill: qualified limestone is stored in the silo, lifted by the hoist and transported into the silo on the top of the preheater. At the top bin of the preheater, the feeding amount is controlled by two upper and lower level gauges, and then the limestone is evenly distributed to each chamber of the preheater through the lower pipe. Limestone is heated in the preheater by 1150 ° C kiln flue gas to about 900 ° C, and about 30% of it is decomposed. It is pushed into the rotary kiln by a hydraulic pusher. The limestone is decomposed into CaO and CO2 by sintering in the rotary kiln. The limestone generated after the decomposition enters the cooler, and the cooled cold air in the cooler is cooled to 100 ° C and discharged. The heat-exchanged 600 ° C hot air enters the kiln and is mixed with gas. Exhaust air enters the bag dust collector through the induced draft fan, and then enters the chimney through the exhaust fan. The lime from the cooler is sent to the lime finished product warehouse through the vibration feeder, chain bucket conveyor, bucket elevator, and belt conveyor.