Pipe inner wall rust removing device and method

Abstract

The invention provides a pipe inner wall rust removing device and method. The device comprises a support, a small belt wheel, a motor, a large belt wheel, a belt, an annular magnetic pole device, a protective cover, guiding devices and a columnar magnet; the support is divided into an upper support body and a lower support body; the motor is fixed to the lower support body; the small belt wheel is fixedly connected with an output shaft of the motor; the annular magnetic pole device is installed on the upper support body through a bearing; the large belt wheel is fixed to the front end of the annular magnetic pole device and is in transmission connection with the small belt wheel through the belt; the protective cover is arranged on the rear side of the annular magnetic pole device and fixedly connected with the upper support body; a round barrel is arranged on the middle portion of the protective cover and stretches into the annular magnetic pole device; the guiding devices are installed on the protective cover; during rust removal, a workpiece is placed in the round barrel on the middle portion of the protective cover; and the columnar magnet is attracted into the workpiece. The pipe inner wall rust removing device and method can easily and effectively remove rust attached to the pipe inner wall, and scratches, uneven rust removal and environmental pollution cannot be caused.

Description

technical field [0001] The invention relates to the technical field of rust removal on the inner wall of steel pipes, in particular to an inner wall rust removal device and method for straight pipes with medium and small pipe diameters and curved pipes with large curvature. Background technique [0002] In daily life and industrial production activities, straight pipes and curved pipes with large curvature are widely used. In the use of straight pipes and large-curvature elbows, the inner wall of the pipe will produce rust and some dirt. In the past, the methods of removing rust and scale in the pipe generally rely on manual knocking, shoveling or high-pressure sandblasting to separate the rust and dirt from the pipe wall. rust and dirt, and scratch metal surfaces. Another method is to use chemical descaling, which uses acidic chemical liquid to chemically react with the rust and scale in the pipe wall to loosen the scale. This method has a complex process and high requir...

AI Technical Summary

Problems solved by technology

This method cannot be used for long tubes with complex tube shapes, and during the sandblasting process, repeated and strong impacts will be made on the first bend in the tube, which will cause scratches on the bend in the tube

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