CN-122007362-A - Crystallizer water cooling control method

CN122007362ACN 122007362 ACN122007362 ACN 122007362ACN-122007362-A

Abstract

The application discloses a crystallizer water cooling control method, which relates to the technical field of continuous casting and adopts a crystallizer water cooling system, wherein the crystallizer water cooling system comprises a water supply end, a water inlet pipe, a water return pipe and a bypass pipe, the water inlet pipe is provided with a pressure gauge, the bypass pipe is connected between the water inlet pipe and the water return pipe, the bypass pipe is provided with a regulating valve, the crystallizer water cooling control method comprises the steps of obtaining the indication number of the pressure gauge, judging whether the water inlet pipe has a pressure holding phenomenon according to the indication number, obtaining a real-time value of the thickness of a copper plate when the water inlet pipe has the pressure holding phenomenon, and regulating and controlling the regulating valve according to the real-time value of the thickness so as to relieve the pressure holding phenomenon of the water inlet pipe. Through the pressure relief of the bypass pipeline, the pressure of the water inlet pipeline can be reduced below an allowable pressure value in a mode of quickly regulating and controlling the regulating valve, and the pressure regulating device has the advantages of being high in response speed and accurate in regulation in a mode of regulating and controlling the regulating valve according to the real-time value of the thickness.

Inventors

JI MENG
LI JIXIN
WU BAOWEN
MA SHUO
ZHANG ZIHENG
LV WEILIANG
LI DONGSHENG
ZHANG JIANHUA
CHEN HUIFENG
LIU MIN

Assignees

首钢京唐钢铁联合有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (10)

1. A crystallizer water cooling control method, characterized in that a crystallizer water cooling system is applied, the crystallizer water cooling system comprises: A water supply end; A water inlet pipeline connected between the water outlet of the water supply end and the water channel inlet of the copper plate of the crystallizer, wherein the water inlet pipeline is provided with a pressure gauge; The water return pipeline is connected between a water return port of the water supply end and a water channel outlet of the copper plate of the crystallizer; the bypass pipeline is connected between the water inlet pipeline and the water return pipeline and is provided with a regulating valve; The crystallizer water cooling control method comprises the following steps: acquiring an indication number of the pressure gauge, and judging whether the pressure holding phenomenon exists in the water inlet pipeline according to the indication number; when the pressure-holding phenomenon exists in the water inlet pipeline, the real-time value of the thickness of the copper plate is obtained, and the regulating valve is regulated and controlled according to the real-time value of the thickness, so that the pressure-holding phenomenon of the water inlet pipeline is relieved.
2. The method for controlling water cooling of a mold according to claim 1, wherein, The copper plate of the crystallizer has a starting value of thickness; And in the process of regulating and controlling the regulating valve according to the real-time value of the thickness, regulating and controlling the regulating valve according to the difference value between the real-time value of the thickness and the initial value of the thickness.
3. The method for controlling water cooling of a mold according to claim 2, wherein, The copper plate of the crystallizer regulates and controls the regulating valve according to the rule that the water flow of the crystallizer is reduced by 10% every 1mm in thickness; The water inlet pipeline is provided with a flowmeter.
4. A crystallizer water cooling control method according to claim 3, wherein, When the regulating valve is regulated and controlled, the regulating valve is regulated and controlled in a mode of multiple regulation.
5. The method for controlling water cooling of a mold according to claim 4, wherein, When the regulation and control are carried out in a multi-time regulation and control mode, the water pressure change of the water inlet pipeline is controlled to be any parameter from 2% to 5% of the initial running pressure value during each regulation and control.
6. The method for controlling water cooling of a mold according to claim 1, wherein, And acquiring a real-time value of the thickness of the copper plate by adopting an spot check mode, and judging whether the regulating valve needs to be regulated or not.
7. A crystallizer water cooling control method according to claim 3, wherein, The flowmeter is relatively close to the water supply end on the water inlet pipeline.
8. The method for controlling water cooling of a mold according to claim 5, The pressure gauge is relatively close to the crystallizer on the water inlet pipeline.
9. The method for controlling water cooling of a mold according to claim 1, wherein, The bypass pipeline is provided with two regulating valves.
10. The method for controlling water cooling of a mold according to claim 9, wherein, And on the bypass pipeline, the two regulating valves are respectively close to the water inlet pipeline and the water return pipeline.

Description

Crystallizer water cooling control method Technical Field The invention relates to the technical field of continuous casting, in particular to a water cooling control method of a crystallizer. Background In the casting machine production process, the copper plate of the crystallizer is a core component directly contacted with high-temperature molten steel, and the main function of the copper plate is to enable the molten steel to be rapidly cooled and solidified in the copper plate to form a casting blank initial blank shell with a specific shape and specification. However, as the crystallizer copper plate is gradually thinned, the cooling capacity is gradually improved, so that in order to control the cooling capacity of the crystallizer copper plate, measures for reducing the opening of a valve and further reducing the flow rate of cooling water are adopted. However, at present, the output water flow of the cooling water supply end of the crystallizer is fixed, after the opening of a valve in the crystallizer is reduced, the pressure of a water supply pipeline can rise, a pressure holding phenomenon occurs, and the service life of the pipeline and the stable operation of equipment are greatly influenced. Disclosure of Invention In order to solve the problems, the application provides a water cooling control method of a crystallizer. The application provides a crystallizer water cooling control method, which adopts a crystallizer water cooling system, wherein the crystallizer water cooling system comprises a water supply end, a water inlet pipeline, a water return pipeline and a bypass pipeline, the water inlet pipeline is connected between a water outlet of the water supply end and a water channel inlet of a copper plate of a crystallizer, the water inlet pipeline is provided with a pressure gauge, the water return pipeline is connected between a water return port of the water supply end and a water channel outlet of the copper plate of the crystallizer, the bypass pipeline is connected between the water inlet pipeline and the water return pipeline, and the bypass pipeline is provided with a regulating valve. In some embodiments, the copper plate of the crystallizer has a starting value of the thickness, and the regulating valve is regulated according to a difference between the real-time value of the thickness and the starting value of the thickness in regulating the regulating valve according to the real-time value of the thickness. In some embodiments, the copper plate of the crystallizer regulates and controls the regulating valve according to the rule that the water flow of the crystallizer is reduced by 10% every 1mm in thickness, and the water inlet pipeline is provided with a flow meter. In some embodiments, the control valve is controlled in a multiple adjustment manner. In some embodiments, the water pressure change of the water inlet pipeline is controlled to be any parameter from 2% to 5% of the initial operating pressure value when the regulation is performed in a mode of multiple regulation. In some embodiments, a spot check mode is adopted to obtain a real-time value of the thickness of the copper plate, and whether the regulating valve needs to be regulated or not is judged. In some embodiments, the flow meter is relatively close to the water supply end on the water intake conduit. In some embodiments, the pressure gauge is relatively close to the crystallizer on the water inlet line. In some embodiments, the bypass conduit is fitted with two regulator valves. In some embodiments, on the bypass conduit, two regulating valves are close to the water intake conduit and the water return conduit, respectively. The crystallizer water cooling control method has the advantages that firstly, the crystallizer water cooling system is limited, the crystallizer is used as a water end, a bypass pipeline connected between the water inlet pipeline and the water return pipeline is arranged besides a water inlet pipeline and a water return pipeline which are conventionally arranged between the water inlet pipeline and the water end, the bypass pipeline is provided with a regulating valve, the crystallizer water cooling control method firstly needs to obtain the indication number of a pressure gauge, judges whether the pressure of the water inlet pipeline is blocked or not according to the indication number, when the pressure of the water inlet pipeline is blocked, a real-time value of the thickness of a copper plate is obtained, the regulating valve is regulated according to the real-time value of the thickness, so that the pressure of the water inlet pipeline is relieved, the pressure of the water inlet pipeline is reduced below an allowable pressure value in a mode of quickly regulating the regulating valve, the crystallizer water cooling control method has the advantages of quick response speed and accurate regulation, and can quickly solve the pressure blocking phenomenon of the water inlet pipeline, wh