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The Basis Of Pulverizer
The pulverizer has a variety of classifications, or in the form of the structure or methods to crush, or the speed of movement, or the type of force, or the degree of refinement to divide.
the Ratio of pulverize the material before and after the pulverize is the size of the size of the degree of change. For a single machine to crush, it is equivalent to the expected size of the largest nesting and the size of the largest ratio; by more than the pulverizer to pulverize the composition of the system, it is equivalent to the original material and the final size Nesting size ratio, or the equivalent to a single machine to crush the crushed even more than the product. When the use of materials broken machinery broken, smashed more than than the commonly referred to as broken.
When asked much more than to pulverize, smash often operating by a number of pulverizers to pulverize the composition of the system to complete. Materials in the system in Taiwan after the pulverizer, its size gradually reduced and finally reach the required size. In such a pulverizing system, at every stage of selection should be appropriate machinery to crush and smash the ratio between the various stages in each other's production capacity. At the same time, in order to enhance the effectiveness and reduce energy consumption, but also in each operation after the crushing or screening levels.
Industrial and agricultural production in a large number of working to smash the energy consumption of a large, but in the crush operation, type of machinery to crush most of the energy into heat and crushed by the machinery, air circulation and to crush the materials to absorb the , For direct materials on the smash but for a very small volume: in the pulverizer, less than 10%; in the grinder, often less than 1%. Therefore, in order to reduce energy consumption, it is necessary to select the appropriate machinery to crush, using the correct method of operation, provides the best smash and units than the time of production.
To pulverize the main theory is to study the process of crushing power and the relationship between the degree of refinement. As the operation to crush a number of factors are involved in the extremely complex process, so there is no generally accepted theory to crush the unified conclusion, and only three of the more important hypothesis, namely:
Telingeer in Germany in the 1867 hypothesis put forward by the size of that solids crushed materials, and energy generated by the new proportional to the surface area; kirke in Germany in 1885 hypothesis put forward by the volume that will be similar to the geometry of its kind Material broken into geometric shapes are similar products, and energy consumption was broken pieces of material in direct proportion to the size or weight; the United States and China, Wang Rendong Bond in 1952 hypothesis put forward by the cracks.
In the three hypotheses has its practical limitations in an area of more hypothesis applies to nesting size of 0.01 to 1 mm grinding operation, the size of a hypothesis applies to nesting size larger than 10 mm thick and broken in Operating broken, and the cracks in between hypothesis is applied to broken from rough grinding to a broader operation.
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