Upper deburring machine for continuous casting slab

Abstract

The invention relates to an upper deburring machine for a continuous casting slab. The machine consists of a frame part, a lifting air sac, a cutter platform part, a cutter platform sliding system, an electric main control box, a machine-side operation box and a photoelectric detection system. Compared with a lower deburring machine, the upper deburring machine has the advantages that: the inclination angle of a cutter platform is increased, so that a hard cutting knob generated during flame cutting can be thoroughly removed; a cutter rod has the same structure as that of the lower deburring machine, so that convenience is provided for the spare part preparation work of a using unit, and equipment is easy to maintain; the cutter platform is provided with an internal water channel, and large discharge area ensures the cooling effect of a cutter rod assembly; an air sac and a high-temperature-resistant compression spring are combined in the lifting design of the cutter platform, so that the structure of the equipment is simplified and a product is convenient to maintain on the premise of ensuring the performance of the product; due to a unique water cooling plate design, the air sac is fully prevented from being influenced by a hot steel billet; and due to a check plate design, the cutter rod is convenient to replace when the equipment is maintained.

Description

technical field [0001] The invention belongs to a special equipment for eradicating steel slag on the gas-cut edge of a steel billet on a steelmaking production line, in particular to a deburring machine for a continuous casting slab. Background technique [0002] At present, all steel mills do not deal with the burrs on the upper surface of the slab, but as the rolling mills have increasingly high requirements on the quality of the slab, it is increasingly important to clean the burrs on the upper surface of the slab. At present, there are two main types of deburring machines used in steel mills: [0003] One is the hammer-knife deburring machine. Due to structural reasons, the hammer-knife deburring machine cannot be applied to slabs with wider width and thinner thickness, so its scope of application is narrow; [0004] The other is a disc-blade deburring machine with a single row of cutter bars. The drive of the cutter bar is driven by an air source. Due to the poor oper...

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Problems solved by technology

[0003] One is the hammer-knife deburring machine. Due to structural reasons, the hammer-knife deburring machine cannot be applied to slabs with wider width and thinner thickness, so its scope of application is narrow;

[0004] The other is a disc-blade deburring machine with a single row of cutter bars. The drive of the cutter bar is driven by an air source. Due to the poor operating environment of the deburring machine (the temperature of the billet is as high as 700 ° C, and the use of air cooling can not be well Cool down the blade and the knife rod, and there is dust in the environment), which leads to the poor sealing of the cylinder sleeve of the knife rod lifting, so that the knife rod cannot rise to the working position due to air leakage in the cylinder, or although the knife rod rises to the working position, but due to Cylinder air leakage reduces the adhesion between the blade and the surface of the billet, causing the blade to retract when the blade encounters hard burrs and the deburring effect cannot be achieved

The disc blades used in the deburring machine are all processed by surface surfacing technology. Because the surfacing technology is difficult to master, the service life of the blades is relatively low, and the average replacement cycle is about 2 months, which directly results in the maintenance cost of the deburring machine. high status

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