What is the reason for the rapid wear of slurry pump overflow parts

The wear mechanism of circulating parts of slurry pump involves many factors, and the wear mechanism of different parts is different. Circulating components such as impeller, guard plate and sheath of slurry pump are directly related to the transported slurry, mortar and coal. Mud, mud and other media will suffer severe abrasive wear. These over-flow elements bear complex and changeable cyclic loads, and the service conditions are relatively harsh, which leads to the slurry pump's service life being much shorter than that of fresh water pump. The wear rate (△G/t) of the overflow element of slurry pump is one of the main indexes of the wear state of slurry pump. According to theoretical research and comprehensive analysis of field application, the main factors affecting the wear rate of circulating parts of slurry pump are divided into four categories, namely, the characteristics of conveying medium, field operation conditions, the characteristics of pump materials, and the structure and structure of circulating parts of pump. Structure. For hydraulic design parameters, these four influencing factors are called Class I influencing factors, or simply referred to as Class I factors. Each primary factor also contains thousands of secondary influencing factors, which are defined as primary influencing factors. 1. medium characteristics: the medium characteristics include the particle size, shape, hardness and true specific gravity of solid particles; Concentration and specific gravity of solid-liquid mixture (or slurry); The flow rate, rheological properties, pH value and temperature of the mixture are all secondary influencing factors. 2. Operating conditions: under the on-site operating conditions, including pump flow Q, lift H, rotating speed N, power P, cavitation allowance, pipe diameter, arrangement of pipes and fittings, operating frequency and running time, etc. 3. Material properties: The material properties of the pump include chemical composition, tensile strength, bending strength, impact toughness, elongation, macro hardness HRC, micro hardness HV (metal matrix hardness HV, cemented carbide hardness HV2), etc. Factors. 4. Structural and hydraulic design parameters: The structural and hydraulic design parameters of pump flow parts include impeller inlet and outlet diameter, outlet width, impeller inlet and outlet placement angle, impeller and pump body runner surface roughness and other factors. Hebei Yingdike Pump Industry Group Co., Ltd. is a professional manufacturer of slurry pumps, submersible slurry pumps and sand suction pumps. It is an enterprise integrating research, development and production in Hebei Province.