Silicon,powder,processing,tech business, insurance Silicon powder processing technology and equipment

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Although the application of pure cement canbe made high performance concrete which the compressive strength is up to 100MPa, but use silica fume will be easier. And for the preparation of the concretestrength is more than 100 MPa, silica fume used is almost indispensable. Silicafume in concrete used as filling material and the volcano ash material. Afteruse silica fume, greatly reducing the pore size in water paste, improve thepore size distribution, so that increases the strength, reduce permeability.For example, researches results show that, in order to get 70 MPa strength of concrete,the application of pure cement needs water binder ratio is 0.35, and when added8% silica fume, water glue ratio can be 0.50. Due to very fine silicaparticles, they can be within the very early hours occurring volcano ashreaction. According to the research, the main contribution of silica fume onconcrete strength is before 28d. Therefore, in the long-term strength growth ofsilica fume concrete, generally considered that silica fume is less than purecement concrete or fly ash concrete. Some scientists cited on the nationalstandard concrete strength test, results show that, silica fume quantityincreases makes early relative strength development is reduced, otherscientists in 65 MPa concrete also discovered this phenomenon.However, although in the same water binderratio of silica fume concrete early relative strength development is slower thanthe pure cement concrete by adding silica fume, the strength is greatlyimproved, silica fume concrete absolute strength is higher than the pure cementconcrete. On the other hand, experience shows that, high performance concreteearly strength development is faster than the national standard concrete,although high performance concrete setting time may be slightly delayed, itshydration after setting due to high efficiency water reducing agent and silicafume to greatly speed up. The result is usually after condensation the strengthdevelops very fast.For some air drying or curing the very lowwater gel ratio of silica fume concrete, has compressive strength retractionreport. This reduces strength usually occurred in 90D age, it is generallythought by the internal self drying and caused by drying cracks. However, manyother researchers in laboratory and field studies show, high performance ofconcrete is not reduced. For example, from 6 different high performanceconcrete get 3 months to 3 years for all core sample test, results show that thestrength is in constant growth. Of course, compare with the national standardconcrete, high performance concrete strength in long-term potential growth is small.Silicon powder processing technology, accordingto metalpowder supplier, raw materials for making silica fume silicon blocks hasmany methods. Which have good effect and widely applied is the Raymond method, rollermethod. The device is Raymond method, the roller machine. From the principle ofpowder, has extrusion grinding and crushing, from its structure, differentgreatly, have distinguishing feature, each have advantages and disadvantages.The following let us simple said about Raymondmethod, Raymond methods required equipments has jaw crusher, bucket elevator, astorage bin, the electromagnetic vibration feeder, Raymond mill, blower,analysis machine motor, fineness machine analysis machine, dust collector anddust collector. The silicon block first through jaw crusher broken, then thebucket elevator put the break silicon block to a storage bin, a storage binmaterial by electromagnetic vibration feeder conveyor to Raymond mill, after Raymondmill machine grinding the material (analysis of motor, fineness machineanalysis machine is used to adjust the mill abrasive fineness and the speed ofthe blower ) sent the material to the dust collector, through precipitator (which is the equipment to eliminate or reduce the content of fly ash in fluegas dust ) get out from the collector is finished.Source:http://www.mhcmp.com Article Tags: Silicon Powder Processing, Powder Processing Technology, High Performance Concrete, Silica Fume Concrete, Pure Cement Concrete, National Standard Concrete, Silicon Powder, Powder Processing, Processing Technology, Pure Cement, High Performance, Performance Concrete, Silica Fume, Concrete Strength, Results Show, Fume Concrete, Cement Concrete, National Standard, Standard Concrete, Strength Development, Raymond Method, Raymond Mill, Analysis Machine, Dust Collector