DW160 Mixer On The Influent Of The Homogeneity And The Optimization Of Its Parameters

South to North Water Diversion Middle headworks main project is an important part of South to North Water Diversion Project, bear to the Beijing, Tianjin, Hebei, Henan and other city water task. In the South-to-north water transfer project, the amount of R2825W8 F100 large volume concrete pouring for the 134000 party, which the impermeability index is 10 level and frost resistance index is 10 level. DW160 mixer is the main mixing equipment. Before mass concrete casting, test the R2825W8 F100 concreteproduction, found that the uniformity can not meet the specification requirements.In this article, through analysis of concrete mixing content uniformity of influence factors, in the strict control of raw materials, mixing ratio and environment temperature, under the condition of found DW160 stirring device parameters is the key factors affecting the problem. Throughcalculatethe mixer on optimization of structural parameters and theoretical analysis, determine the DW160 blender mixing arm arrangement, best suitable mixing speed and blade installation Angle. The stirring arm installation form is the optimal state. Reasonable stirring speed depends directly on the blade installation angle. But Angle and theoretical analysis of optimal fixing angle does not match the actual installation of blade.In the blade installation angle is not in conformity with the theoretical analysis of the case, according to the actual situation of DW160 mixer on the appropriate, it adjusts the angle through the study on the parameter optimization of mixer parameter. To verify the rationality of the blade Angle is adjusted, under the different mixing time, the blade Angle adjustment before and after R2825W8 F100 uniformity of concrete and compressive strength test, the test results of contrast study, after the blade Angle adjustment, concrete mixing content uniformity is improved at the same time conform to the requirements of the specification, and the mixing time of 42 s, concrete mixing uniformity of the best.This article through to the existing equipment DW160 mixer parameters optimizing adjustment, make existing mixing equipment on the premise of, improve the working efficiency, and cost savings, completed on the improvement of the concrete mixing content uniformity. It not only save the cost, meet the scene of the construction of concrete pouring quality requirements, it is also important that for existing mixing equipment optimization and reform to provide practical reference value.