Device and method for preventing emulsion channeling between cold rolling unit frames

Abstract

Disclosed are a device and a method for preventing emulsion channeling between cold rolling unit frames. A liquid level meter and a concentration meter are arranged in an emulsion main box of the tail frame; the liquid level meter and the concentration meter are connected with a liquid level monitoring module and a concentration monitoring module of a computer logic system respectively; a pipeline which is connected between the emulsion main box of the tail frame and an emulsion main box of the previous frame is provided with a backflow pump; the computer logic system is used for performing real-time monitoring on the liquid level and the concentration of emulsion located in the emulsion main box of the tail frame and performing real-time deviation treatment on the liquid level and the concentration. According to the device and the method for preventing the emulsion channeling between the cold rolling unit frames, the problem of the emulsion channeling between the cold rolling unit frames especially the emulsion channeling between the cold rolling unit frames under the multi-concentration rolling condition is solved, the quality control capability of high surface quality requirements of products is ensured, the cost is reduced, the stability of the production process is improved, and the device and the method are suitable for the field for preventing the emulsion channeling between the various cold rolling unit frames.

Description

technical field [0001] The invention relates to a method for monitoring the operation status of a cold rolling mill during metallurgical production, in particular to a method for preventing emulsion channeling between stands of a cold rolling mill under the condition of multi-concentration rolling. Background technique [0002] At present, with the increasing level of industrial manufacturing, the requirements for one of the raw materials-strip steel sheets are also increasing, especially for metal sheet products used in vehicles, which have extremely high requirements for the quality of the strip steel surface, so in the strip steel The cold rolling production line generally adopts multi-concentration rolling when producing automobile sheets. The so-called multi-concentration rolling means that the concentration of the end stand is mixed according to the low concentration during the rolling of the cold rolling production line, and the emulsion runs in a box and circulation ...

AI Technical Summary

Problems solved by technology

[0017] In order to solve the problem of emulsion channeling between cold rolling mill stands in the prior art, especially the emulsion channeling between cold rolling mill stands under multi-concentration rolling conditions, the present invention provides a method to prevent cold rolling The device and method for the emulsion channeling between the unit racks connect the two tanks and monitor the liquid level and emulsion concentration in the tank, and then automatically monitor the monitored liquid level and emulsion concentration through the logic control program. Control, under different circumstances, carry out water replenishment, oil replenishment or tank inversion operations on the low-concentration tank to realize dynamic monitoring and zero discharge of the concentration of the emulsion tank at the end of the rack. The specific scheme of the present invention is as follows:

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