Suction Characteristics Of Heavy Caliber Piston Pump At A Few Viscous Industrial Waste Materials

The pipeline transportation technology of high dense and viscous industrial solid waste (viscous solid waste for short) is a new technology developed in recent years. The core device of the transportation system is heavy caliber piston pump of which the suction volumetric efficiency for viscous materials has a direct impact on the conveying capacity of the system. All along, there are fewer researches on the suction volumetric efficiency of heavy caliber piston pump and they are behind the needs of production development. In this paper, it puts forward the concept of heavy caliber piston inhale character which refers to the suction volumetric efficiency of heavy caliber piston pump for viscous materials,the factors affect the suction volumetric efficiency and the rules and size; it ascertains the conditions of viscous solid waste generating flow at the mixing homogeneous state; it deduces the suction volumetric efficiency formula and makes sure the seven factors which effects the suction volumetric efficiency:design feature,airtight coating nature,atmospheric pressure in place,material rationalize character,technical parameter,slenderness ratio of material jar and coercibility, and also analyses the influence of action factors effecting the suction volumetric efficiency; it develops the testing device for heavy caliber piston pump inhale character by myself which can achieve the testing function under the changes of different consistency,initial shear strength,material rigidity,stuff-suction speed,slenderness ratio and other parameters; it tests the suction character of a few typical high dense materials, prove the correctness of inhale character formula, get the suction character technical parameters of heavy caliber piston pump for a few viscous materials and provide a theoretical basis for selecting reasonable processing parameters for the pipeline transportation system for high viscous and dense materials; it also summarizes the experiential suction volumetric efficiency formula so as to test suction volumetric efficiency of thick materials in practice.