Application of screw conveyor in concrete industry

2014-11-22 08:49:50 With the rapid development of my country's economy, the demand for concrete is increasing. In the production of concrete, screw conveyors are one of the facilities for conveying unprocessed raw materials. In the application of screw conveyors, material jams and overflows are often exposed at the suspension bearing, which affects production and reduces economic benefits. An analysis of the situation of the screw loading conveyor : the hanging bearing is a place where the spiral blade is not effective. This place will not only accumulate a lot of materials, but also deposit a large amount at the bottom of the box. It is difficult to grind granular materials. The content of broken iron particles and coarse particles is large, and besides the slenderness and precision, the blades at both ends of the screw shaft suffer from serious friction effect, and the blades at both ends are worn more profitably; the suspension bearing wears more severely, reducing the life span of use.　　 In response to the above problems, the screw loading conveyor has been improved in terms of processing and manufacturing as follows: 　　 Two spiral blades are welded at both ends of the screw shaft to enhance the thrust effect on the accumulation of material at the hanging bearing. The screw shaft rotates once to generate two thrusts on the material, which reduces the accumulation of material at the hanging bearing, and will no longer cause material blocking and overflow. The suspension bearing is improved in the processing technology: the suspension bearing is made of wear-resistant materials (such as ductile iron); or it is made of steel castings, and the inner hole of the steel castings is quenched, and the half-waist section of the connecting shaft is properly externally quenched, and then cut after quenching; Or a section of the inner hole of the hoisting bearing and the outer circle of the connecting shaft are covered with a wear-resistant electrode to strengthen the wear resistance and extend the life of the hoisting bearing.

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