Multi-mode steel pipe rolling process

Abstract

The invention discloses a multi-mode steel pipe rolling process which comprises the following steps: acquiring the heat temperature and solar illumination intensity of an incoming material, judging whether the incoming material has a heat delivery condition or not, and judging that a solar power generation device can perform effective power generation based on the current solar illumination intensity; a conventional production mode is adopted when it is judged that the current incoming material does not have the hot delivery condition and the solar power generation device cannot effectively generate power, and a solar preheating mode is adopted when it is judged that the current incoming material does not have the hot delivery condition and the solar power generation device can effectively generate power; and when it is judged that the current supplied material meets the hot delivery condition and the solar power generation device can effectively generate power, a composite preheating mode is adopted. After incoming materials are heated in the annular furnace to be in a hot state, the hot-state blank is subjected to perforation treatment. Therefore, the continuous casting preheating of the tube blank can be better realized; solar energy can be better utilized; the gas consumption of the annular furnace is saved by multiple methods, and the carbon consumption is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of steel pipe rolling, in particular to a multi-mode steel pipe rolling process. Background technique [0002] In the steel pipe production line, the annular furnace is one of the commonly used components in the production process. Its main function is to heat the fixed-length tube blank, so that the fixed-length tube blank becomes a hot blank with a temperature of 1250 degrees Celsius required for perforation. Among them, the combustion medium of the annular furnace is mostly mixed gas or natural gas. Moreover, the annular furnace in the prior art mostly adopts the form of one inlet (automatic clamp for transferring material) and one outlet (automatic clamp for discharging), wherein the entrance is used for charging, and the outlet is used for heating to rolling. After that, the hot billet will be sent to the punching machine. [0003] However, the heating of the annular furnace in the prior art mainly us...

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Problems solved by technology

[0003] However, the heating of the annular furnace in the prior art mainly uses a single fuel, the fine management is not enough, the space for combustion energy saving is limited, the carbon emission limit control is not easy, and the control of temperature and other aspects is insufficient

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