Steering elbow for powder-shaped material transportation

Abstract

The invention discloses a steering elbow for powder-shaped material transportation, comprising an elbow main body, wherein the elbow main body is a closed shell (1); an input pipe (2) and an output pipe (3) are fixed on the shell (1); the input pipe (2) and the output pipe (3) are fixed with the shell (1) and are communicated with the inner cavity of the shell (1); the inlet end of the output pipe (3) is input deep in the inner cavity of the shell (1); a distance D9 that the inlet end is input deep in the shell (1) is 4cm; the shell (1) comprises an upper circular board (4), a lower circular board (5) and a barrel body (6); the upper circular board (4) and the lower circular board (5) are fixed on the upper end and the lower end of the barrel body (6) respectively; the input pipe (2) and the output pipe (3) are fixed on the circumferential face of the barrel body (6); and the inner diameter D1 of the barrel body (6) is as 2-3 times as the inner diameter D6 of the input pipe (2). According to the invention, the steering elbow is characterized by abrasion resistance, simple structure and low cost.

Description

Technical field [0001] The invention relates to a conveying steering elbow, in particular to a gas conveying powder material steering elbow. Background technique [0002] The existing gas conveying powdery materials (such as cement, fly ash, coal powder, dry slag) often use arc-shaped elbows, due to the high-speed linear motion of the powdery fine particles under the action of high-pressure gas in the arc-shaped bend The direct collision of the inner wall of the head makes the inner wall of the arc-shaped elbow severely worn, shortens the service life, and increases the maintenance and replacement cost. In order to solve the technical problem that the inner wall of the curved elbow is easy to wear, some ceramic wear-resistant materials are embedded in the inner wall of the elbow, but the use effect is not ideal and the cost is high. At present, elbows with olive-shaped and spherical shapes are also used to improve the wear problem. Although the service life of the elbow is incre...

AI Technical Summary

Problems solved by technology

[0002] Existing gas conveying powdery materials (such as cement, fly ash, coal powder, dry mineral powder) often use arc-shaped elbows at the turning point. Due to the high-speed linear motion of powdery fine particles under the action of high-pressure gas The direct collision of the inner wall of the arc elbow causes serious wear and tear on the inner wall of the curved elbow, shortens the service life, and increases the cost of maintenance and replacement

In order to solve the technical problem that the inner wall of the curved elbow is easy to wear, some ceramic wear-resistant materials are inlaid on the inner wall of the elbow, but the effect is not ideal and the cost is high

At present, there are also olive-shaped, spherical and other shaped elbows to improve the wear problem. Although the service life of the elbow has been improved to varying degrees, the manufacturing process of the elbow is complicated and there is a problem of low service life.

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