Designing Of The Two-By-Pass Dense Phase Pneumatic Conveying And Experimental Researcht

The pneumatic conveying uses gas to blow solids from one place to another place. With the scientific development , The pneumatic conveying is widespread availability in industry. Because the pneumatic conveying is gas-solid two-phase flow, the inner flow pattern is complex. This paper discusses the flowing power of the powder lot and the pneumatic conveying theory. The new size two-by-pass dense-phase pneumatic conveying system is designed in paper, as the carton black for conveying power, the pneumatic conveying main device of carton black is designed. This paper analyzes pneumatic conveying carbon black flow chart and some factors in pneumatic conveying,do the experiment of the carton black and the experimental research. In this paper,it discusses the following fruitful research and has achieved satisfactory results.1. The pneumatic conveying setting and meaning is analyzed. The current conditions and existing questions are discussed.2. The paper studies basic pneumatic conveying theories and pneumatic conveying system features.in accordance with the different ways, the pneumatic conveying system has been classified.3. The basic properties of the powder lot is studied, for example, particle size,particle density,particle shape, the relationship between them and the choice of types of pneumatic conveying system. The equation of powder lot motion in the pipeline has been analyzed.4. Before the design of the pneumatic conveying devices, first, this text discusses some basic parameters, know the requirements of the spot employment and the lay of workshop.Then, according to design parameters and the spot facts,we can count.In end, the lectotype and design of the pneumatic conveying, at the same time, instalment,setting and experiment.5. In order to better design of the two-by-pass dense-phase pneumatic conveying system, this paper presents several major basic parameters that the design must take into account, such as transporting velocity, the gas-solid ratio, transporting pressure drop and so on. Because of elbow wear, the fluidizaton of conveying material and ash handling equipments that have an effect on pneumatic conveying system. So we must consider them.6. Through experiment of carbon black, compared single by-pass dense phase pneumatic conveying with this system design.The carbon black system capability of two-by-pass dense-phase pneumatic conveying has been further enhanced. Such as the conveying capability is improved, the consumption of gas is reduced, the gas-solid ratio increases and so on.7. in the carbon black system design of two-by-pass dense-phase pneumatic conveying, as carbon black for conveying material, it can be spreadly applied and convey other materials that have the same characters of the carbon black.In end, we generalize research job, and bring forward expectations in system design optimizations of two-by-pass dense-phase pneumatic conveying in future.