90-degree rectangular wear-resistant elbow and wear-resistant treatment method of elbow

Abstract

The invention discloses a 90-degree rectangular wear-resistant elbow and a wear-resistant treatment method of the elbow. The 90-degree rectangular wear-resistant elbow comprises an upper top plate, a lower bottom plate, an outer cambered surface and an inner cambered surface. A quarter of an arc-shaped pipe is obtained through the surrounding of the upper top plate, the lower bottom plate, the outer cambered surface and the inner cambered surface, which are taken as four sides. The upper top plate is the same as the lower bottom plate. The lower bottom plate and the inner cambered surface are both divided into high-friction areas, middle-friction areas and low-friction areas. Wear-resistant materials of different wear-resistance thicknesses are respectively arranged on the surfaces, which are positioned in the elbow, of the high-friction areas and the middle-friction areas. Different wear-resistant materials are adopted at parts with different friction shear forces, grinding a pipeline by a material during the pneumatic transmission process is effectively prevented, the wear resistance of different parts of the pipeline is enhanced according to the wear degrees of the different parts, and besides, the expensive material is saved, and the manufacturing cost of the elbow is reduced.

Description

technical field [0001] The invention belongs to the field of industrial ventilation, and in particular relates to a rectangular elbow and a treatment method for the elbow, in particular to a 90° rectangular wear-resistant elbow and a wear-resistant treatment method for the elbow. Background technique [0002] In the process of conveying abrasive materials such as pneumatic and pumped slurry, because the conveying medium generally has the characteristics of high hardness, fast flow rate, and large flow rate, it will continue to impact, wear, and corrode the pipe wall for a long time during the conveying process. Fatigue the pipeline and gradually wear it out. Especially when the wear-resistant pipeline transports abrasive materials (such as ash, coal powder, ore powder, tailings, cement, etc.), there is a problem that the wear-resistant pipeline wears quickly, especially the bend of the pipeline. At the local resistance member such as the head, the collision between the mate...

AI Technical Summary

Problems solved by technology

But not all parts will be subject to great friction, only the part with a large velocity gradient in the pipeline will be severely frictioned, and the traditional method of attaching the inner wall of the pipeline not only leads to a large internal resistance of the pipeline, but also increases energy consumption , and requires a larger type of air supply fan equipment

At the same time, the area of ​​air ducts in existing buildings with centralized ventilation and air conditioning is very large. If traditional wear-resistant treatment methods are used, a large amount of wear-resistant materials need to be used, which is expensive

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