Heating furnace slab positioning device and positioning method thereof

Abstract

The invention discloses a heating furnace slab positioning device. A slab (1) is arranged on a roller table group (10) and transported to a front positioning roller table from a furnace roller table of a heating furnace; a furnace side roller table encoder (2), a furnace side cold and hot metal detector (3), a furnace front roller table encoder (4), a furnace front cold and hot metal detector (5) and a metal width measurement detector (7) are arranged on the roller table group (10); a righting mechanism (6) and a righting mechanism encoder (8) are arranged below the roller table group (10); and distance meters (9) for measuring the length of the slab (1) are arranged on two sides of the slab (1). The invention further discloses a positioning method of the heating furnace slab positioning device. Slabs with different lengths can be positioned on a furnace front loading roller according to requirements of a material distribution graph in a higher precision manner, so that the slabs can be loaded in reasonable positions in the heating furnace, accordingly, a series of problems caused by a conventional positioning method are solved, facilities of the heating furnace are protected, and the input rate of the heating furnace during operation is increased.

Description

technical field [0001] The invention relates to a slab positioning method, in particular to a heating furnace slab positioning device and a positioning method thereof. Background technique [0002] In the process of strip production, the raw material slab used for production needs to be heated in a heating furnace before entering the rolling line for rolling. In recent years, end-in and end-out walking beam furnaces have been increasingly used to heat slabs. The walking beam heating furnace transports the slab from the charging end of the heating furnace to the discharging end through a walking mechanism, and heats the slab to the temperature required for rolling during the transportation. [0003] Compared with the previously commonly used pusher type heating furnace, the walking beam heating furnace has many advantages: [0004] For example: improve the capacity of the unit heating furnace and improve the heating quality of the product; at the same time, the walking beam...

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Problems solved by technology

[0006] This positioning method can only perform preliminary positioning on the slab, and there are several problems in the following aspects: there is no process of pushing the slab, and there is no process of measuring the width of the slab; Slip between the roller table and the slab length measurement is likely to be inaccurate, and there is no calibration link after the positioning is completed

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