Jaw Crusher to solve the problem of cement production
Active lime rotary kiln primary condition for the selection and use of raw materials.According to the selection of raw materials - limestone characteristics to determine the calcined and calcined way, is an important guarantee for qualified products.The raw materials for the production of active lime, carbonate rocks, the elemental mainly of limestone, which is what we usually refer to CaCO3.Many different types of limestone, coon: granular crystalline limestone, dense limestone, porous limestone, earthy limestone, marly limestone, chalk, dolomite, shells - calcareous river pebbles.General should be more than 90% higher in the chemical composition of the active lime, CaO (calcium oxide) content.Meanwhile, S (sulfur), P (phosphorus), the content of impurities but also lower the requirements better.Therefore, the feedstock for the production of active lime - the quality of the limestone is explicitly requested.In the selection or the use of lime raw material in many grade limestone (CaCO3 calcium carbonate), and often to the CaO (calcium oxide) content greater than 54%,Rotary kiln SiO2 (silica), S (sulfur), P (phosphorus ), MgO (magnesium oxide), Fe2O3 (iron sesquioxide), Al2O3 (oxide of aluminum) content of impurities such as the low value of the limestone as a raw material of the calcined active lime.Because it is active lime products should have the physical and chemical nature of the primary guarantee, and this is very important.In order to meet the nature of the product of lime required, a long time, the selection of the main raw material of of producing metallurgical lime or active lime,cone crusher multiple dense limestone-based,Mobile Crusher i.e. limestone.Because the most important feature of the dense limestone performance in its dense fine crystalline structure and texture, hardness smaller features,Rotary Kiln is the ideal raw material calcined active lime.Intermittent feeding with the operating rotary kiln kiln heating Commissioning Broken mining a particle size of 500 ~ 1500mm ore block is broken to a particle size of 5 ~ 25 process.Are crushed, crushed, chipping, and general rough broken, broken, broken bits of three sections.
Ground-based grinding and impact.The crushed product is ground to a particle size of a size of 10 ~ 300m.Ground particle size is determined based on the useful minerals disinated in the ore particle size, and sorting method.The grinding equipment: rod mill, ball mill, mill and SAG mill, etc..Grated operating high energy consumption usually accounts for about half of the total energy consumption of the beneficiation. alicey599 Since the 1980s, the application of new types of linings and other measures, grated improved efficiency, decrease energy consumption.Screening and grading by the mesh size of the sieve surface the material is divided into different levels of granularity, said screening, commonly used in the processing of the coarser material.Press the particles in the medium (usually water) in the sedimentation speed of the different, the material is divided into a different level of such lowering, said grading for the smaller particle size material.Sieving and grading is in the process of crushing the separation of the appropriate particle size of the material, or the material is divided into different levels of granularity were selected.Washing to avoid argillaceous material containing clay mineral raw materials clogging crushing, screening equipment, the need for washing.Raw materials such as to contain the Soluble useful or harmful ingredients should wash mine.Washing scrubbing machines, sieving and grading equipment.Sorting job mineral raw materials by crushing job backward selected do the job,Hammer crusher so useful minerals and gangue separation, separated from each other or make a variety of useful minerals.This is the main body portion of the beneficiation.Sorting operations have re-election, flotation, electrostatic separation, sorting and chemical election.Beneficiation development process of re-election law
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