A method for intelligent configuration of cold rolling emulsion

Abstract

The invention discloses a cold rolling emulsion intelligent preparation method, and belongs to the technical field of automatic control of cold rolling. The method comprises the following steps: a real-time concentration of emulsion and an actual liquid level of an emulsion cleaning box are obtained; when the real-time concentration of the emulsion is equal to an emulsion concentration control lower limit, oil is automatically replenished, and the rolling tonnage is reset after each time of oil replenishing; when the actual liquid level of the emulsion cleaning box is equal to an emulsion cleaning box control liquid level lower limit, water is automatically replenished; and the emulsion concentration is controlled in real time through automatic oil replenishing and automatic water replenishing. The cold rolling emulsion intelligent preparation method solves the technical problem of high fluctuation of manual concentration control of cold rolling emulsion in the prior art, obtains stable emulsion concentration, breaks through a conventional emulsion manual preparation mode, improves the emulsion concentration control precision, and improves the cold rolling stability and the product quality.

Description

technical field

[0001] The invention relates to the technical field of cold rolling automatic control, in particular to an intelligent configuration method of cold rolling emulsion. Background technique

[0002] The emulsion plays the role of lubrication and cooling in the cold rolling process. The concentration of the emulsion has a great influence on the performance of the emulsion. If the concentration is too small, it will affect the lubricity, rolling stability and rust resistance; if the concentration is too high, it will cause slippage and increase the cost of auxiliary materials. At present, the preparation of the emulsion generally adopts manual oil replenishment and water replenishment, which has the problems of large randomness, strong subjectivity, and large fluctuations in concentration control. For the fiercely competitive steel market, it is necessary to realize the intelligent preparation of cold rolling emulsion. Contents of the invention

[0003] The pu...

Examples

Embodiment 1

[0051] Emulsion concentration control upper limit = 1.6%, manually set

[0052] Lower control limit of emulsion concentration = 1.4%, manually set

[0053] Emulsion cleaning tank maximum volume = 200m 3 , the device constant

[0054] The maximum volume of the emulsion return tank = 50m 3 , the device constant

[0055] Emulsion cleaning tank control liquid level upper limit = 55%, manually set

[0056] Emulsion cleaning tank control liquid level lower limit = 50%, manually set

[0057] Emulsion liquid return tank control liquid level = 72%, liquid level gauge collection and monitoring

[0058] Rolling oil consumption per ton of steel = 0.36 kg / ton, manually set

[0059] Rolling oil volume per barrel = 200L = 0.2m 3 ,constant

[0060] Rolling oil weight per barrel = 180kg, constant

[0061] The actual liquid level of the emulsion cleaning tank is monitored in real time by a liquid level gauge.

[0062] The rolling tonnage is collected from the secondary system and is aut...

Embodiment 2

[0070] The cold-rolled emulsion intelligent configuration method provided by the embodiment of the present invention is edited into computer software, and the operation interface of the computer software is as follows: figure 2 As shown, the upper control limit of the emulsion concentration is 1.6%, the lower control limit of the emulsion concentration is 1.4%, the upper limit of the control liquid level of the emulsion cleaning tank is 55%, the lower limit of the control liquid level of the emulsion cleaning tank is 50%, and the rolling oil consumption per ton of steel is 0.36 kg / Ton is a manual setting value, manually input into the setting box. The actual liquid level of the emulsion cleaning tank is 53%, the control liquid level of the emulsion return tank is 72%, and the rolling tonnage of 700 tons is automatically collected by the liquid level gauge and automatically calculated by the system. The real-time concentration is 1.403%, the oil replenishment volume is 284L, ...

technical field

[0001] The invention relates to the technical field of cold rolling automatic control, in particular to an intelligent configuration method of cold rolling emulsion. Background technique

[0002] The emulsion plays the role of lubrication and cooling in the cold rolling process. The concentration of the emulsion has a great influence on the performance of the emulsion. If the concentration is too small, it will affect the lubricity, rolling stability and rust resistance; if the concentration is too high, it will cause slippage and increase the cost of auxiliary materials. At present, the preparation of the emulsion generally adopts manual oil replenishment and water replenishment, which has the problems of large randomness, strong subjectivity, and large fluctuations in concentration control. For the fiercely competitive steel market, it is necessary to realize the intelligent preparation of cold rolling emulsion. Contents of the invention

[0003] The pu...

Examples

Embodiment 1

[0051] Emulsion concentration control upper limit = 1.6%, manually set

[0052] Lower control limit of emulsion concentration = 1.4%, manually set

[0053] Emulsion cleaning tank maximum volume = 200m 3 , the device constant

[0054] The maximum volume of the emulsion return tank = 50m 3 , the device constant

[0055] Emulsion cleaning tank control liquid level upper limit = 55%, manually set

[0056] Emulsion cleaning tank control liquid level lower limit = 50%, manually set

[0057] Emulsion liquid return tank control liquid level = 72%, liquid level gauge collection and monitoring

[0058] Rolling oil consumption per ton of steel = 0.36 kg / ton, manually set

[0059] Rolling oil volume per barrel = 200L = 0.2m 3 ,constant

[0060] Rolling oil weight per barrel = 180kg, constant

[0061] The actual liquid level of the emulsion cleaning tank is monitored in real time by a liquid level gauge.

[0062] The rolling tonnage is collected from the secondary system and is aut...

Embodiment 2

[0070] The cold-rolled emulsion intelligent configuration method provided by the embodiment of the present invention is edited into computer software, and the operation interface of the computer software is as follows: figure 2 As shown, the upper control limit of the emulsion concentration is 1.6%, the lower control limit of the emulsion concentration is 1.4%, the upper limit of the control liquid level of the emulsion cleaning tank is 55%, the lower limit of the control liquid level of the emulsion cleaning tank is 50%, and the rolling oil consumption per ton of steel is 0.36 kg / Ton is a manual setting value, manually input into the setting box. The actual liquid level of the emulsion cleaning tank is 53%, the control liquid level of the emulsion return tank is 72%, and the rolling tonnage of 700 tons is automatically collected by the liquid level gauge and automatically calculated by the system. The real-time concentration is 1.403%, the oil replenishment volume is 284L, ...

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