Heat removal system and method for removing residues from the inner surface of steel pipes using the same

Abstract

The invention discloses a heat removal system and a method for removing residues on the inner surface of a steel pipe by means of the heat removal system. The heat removal system comprises a bright annealing furnace and a support. The heat removal system further comprises a gas delivery device and a conveying device, wherein the gas delivery device is connected to the support and used for delivering to-be combusted gas into a to-be-machined steel pipe; and the conveying device is arranged on the support and used for conveying the to-be-machined steel pipe filled with the to-be combusted gas into the bright annealing furnace. The method for removing residues on the inner surface of the steel pipe comprises the following steps that the to-be combusted gas is delivered into the to-be-machined steel pipe through an input pipe, a machine frame and an output pipe in sequence; the to-be-machined steel pipe filled with the to-be combusted gas enters the bright annealing furnace; and the residues on the inner surface of the to-be-machined steel pipe are removed through combustion of the to-be combusted gas. According to the heat removal system and the method for removing residues on the inner surface of the steel pipe by means of the heat removal system, the inner surfaces of bright annealing seamless steel pipes can be cleaned more clearly, and a thorough cleaning effect can be achieved for steel pipes with small diameters.

Description

technical field [0001] The invention relates to a heat removal system and a method for removing residues on the inner surface of steel pipes using the same. Background technique [0002] The manufacture of seamless steel pipes in the prior art mainly relies on cold drawing or cold rolling machines to reduce the steel pipes to the desired outer diameter or wall thickness. Mechanically processed steel pipes are subject to heat treatment, a key process used to reduce the hardness of the material for subsequent steel pipe processing. The traditional seamless pipe heat treatment adopts open hearth chemical fuel furnace. The result is a black oxide layer that develops from exposure to the atmosphere. To remove this oxide layer, it is necessary to soak the steel pipe in the pickling pool for a long time. In this way, the traditional process of using open hearth chemical fuel furnaces is not only time-consuming but also pollutes the environment. [0003] Optionally, the heat tre...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a heat removal system and a method for using it to remove residues on the inner surface of steel pipes in order to overcome the defect that the residues on the inner surface of the steel pipe are difficult to remove in the prior art

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