A strip cooling process method and device between stands of an acid rolling mill

Abstract

The invention discloses a cooling process method and device for strip steel among racks of a pickling line tandem cold rolling mill. Emulsion spraying beams are additionally arranged above the strip steel in front of the third rack, the fourth rack and the fifth rack respectively and spray emulsion to the strip steel, wherein the emulsion sprayed by the spraying beams newly arranged in front of the third rack and the fourth rack is controlled by emulsion units of the racks one to four, and the emulsion sprayed by the spraying beam newly arranged in front of the fifth rack is controlled by an emulsion unit of the fifth rack. According to the method and the device, an emulsion cooling system can be optimized, total flow of the emulsion is reduced, consumption of emulsion crude oil is reduced, the use period of the emulsion is prolonged, meanwhile, the probability of hot scratching of the mill can be greatly reduced, the production cost of an enterprise is reduced, and product quality is improved.

Description

technical field [0001] The invention relates to the field of steel rolling equipment, in particular to a strip cooling process method and device between racks of an acid rolling mill. Background technique [0002] Process cooling of pickling mill: Process cooling is an important feature of the strip cold rolling process, because the strip will generate a lot of friction work and deformation heat during the rolling process. The basic function of process cooling is to spray the emulsion with the concentration required by the rolling process onto the roll and strip under certain flow and pressure conditions through the nozzle on the spray beam, so as to ensure the The working temperature of the steel can be reduced while reducing the rolling force generated by the friction. [0003] At present, in the emulsion system of domestic cold rolling mills, when the rolling speed of the rolling mill is increased to a certain level, in order to ensure the cooling capacity of the process...

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Problems solved by technology

[0003] At present, in the emulsion system of domestic cold rolling mills, when the rolling speed of the rolling mill is increased to a certain level, in order to ensure the cooling capacity of the process, the emulsion flow rate must always be at 100% flow rate, resulting in the consumption of energy media such as the amount of emulsion, desalted water, and electric energy. Both are increasing, and the production cost is also increasing, which is not conducive to the cost reduction of enterprises.

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