Downward-drive type device for removing dust on inner surface of steel pipe

Abstract

The invention discloses a downward-drive type device for removing dust on the inner surface of a steel pipe. The device comprises an air nozzle, an air suction cavity, a plurality of multi-station rotating discs, a plurality of driving assemblies and a long arc sealing plate. The distance between the air nozzle and the air suction cavity is slightly larger than the length of the steel pipe, and the air nozzle and air suction cavity are arranged at the dust removing position. The multi-station rotating discs are arranged in the axial direction of the steel pipe, at least three gaps are formed in each multi-station rotating disc, and each gap is a station. The driving assemblies are correspondingly connected with the multi-station rotating discs and drive the multi-station rotating discs to synchronously rotate with the axes of the multi-station rotating discs as rotating axes. The two sides of each station are respectively provided with a sealing side plate which is arranged in the axial direction of the steel pipe, and each sealing side plate is fixedly arranged between every two adjacent multi-station rotating discs. The long arc sealing plate is arranged below the multi-station rotating discs in the axial direction of the steel pipe, and a sealing space is formed between the long arc sealing plate and the sealing side plates at the dust removing position. The downward-drive type device for removing the dust on the inner surface of the steel pipe can rapidly and effectively remove the dust on the thin and long steel pipe and improve reliability and working efficiency.

Description

technical field [0001] The invention relates to a processing device in the field of steel pipe manufacturing, in particular to a processing device for the surface of a steel pipe. Background technique [0002] With the development of the steel pipe industry, users have higher and higher requirements for the quality of steel pipes. In order to check the overall quality of steel pipes, it is necessary to conduct flaw detection inside the pipe body, which requires that the inner surface of the steel pipe must be relatively clean and free of impurities. The soot blowing and suction device can be installed in front of the pipe flaw detection device to blow and suck dust on the steel pipe to remove dust and scattered iron scale and other sundries inside the steel pipe to meet the requirements for flaw detection of steel pipes. [0003] At present, most of the traditional ash removal devices commonly used in my country's steel pipe production enterprises are open structures. The a...

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Problems solved by technology

Among them, the (1) type of technology is difficult to meet the ash removal requirements of ordinary length steel pipes with an inner diameter of 25 mm or less; the (2) type of technology is less efficient for the same batch of conditions with large differences in length; (3) and (4) The technology can meet the ash removal requirements for the inner surface of various specifications of steel pipes with a length of about 15 meters, but for steel pipes with a length of more than 20 meters, the entire ash removal mechanism is larger and occupies a larger area, so the reliability is corresponding to lower

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