A system and method for doubling the temperature reduction of rolled pieces and saving water consumption in double-high-line water tanks

By optimizing the water cooling control system of the double-high wire in the steel rolling mill, the temperature of the rolled pieces is doubled and the water consumption is reduced simultaneously, solving the problems of high water consumption and limited cooling capacity in the existing technology and creating conditions for reducing alloy usage and costs.

CN116140388BActive Publication Date: 2025-09-09YANGCHUN NEW STEEL CO LTD
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Patent Information

Application Number
CN202310016145.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-06
Publication Date
2025-09-09
Estimated Expiration
2043-01-06

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Abstract

The present invention provides a system and method for doubly cooling rolled pieces in double high-line water tanks and saving water consumption, relating to the technical field of steel production, including a total water source rolling process linkage opening and closing system, a full-area cooling and resistance reduction and action time test and calculation system, a water consumption reduction control and spinning temperature bottleneck temperature reduction system, a water cooling variable integrated test and temperature reduction linkage alloy reduction system; the present invention controls boiling water to supply water to the water tank by controlling a diaphragm shut-off valve after the rolled pieces arrive at the water tank, and controls water shut-off of the water tank by controlling the diaphragm shut-off valve after the rolled pieces leave the water tank; in order to ensure the cooling effect and impact resistance of the head and tail of the rolled pieces, the control conditions are optimized by combining "advance + delay" and "action time test and calculation of the diaphragm regulating valve", which not only saves a lot of water consumption, but also reduces the spinning temperature of the high-line to 850°C, breaks through the technical bottleneck in water tank cooling control, reduces alloy and reduces cost.
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Description

Technical Field

[0001] The present invention relates to the technical field of steel production, and in particular to a system and method for doubling the temperature of rolled pieces in double-high-line water tanks and saving water consumption. Background Art

[0002] The water cooling system for the double high-speed rolling mill consists of five water tanks: Tank 0, Tank 1, Tank 2, Tank 3, and Tank 4. The existing control method is a "three-way valve control method," which directly controls the cooling of the rolled pieces in the water tanks by controlling the opening and closing of the three-way valves. The three-way valves are a key link in the entire control process. After years of exploration, research, and analysis, it was found that the "three-way valve control method" consumes a lot of water and has limited cooling capacity for the rolled pieces. This method cannot further provide the water cooling space for high-speed rolling mill cooling that the company needs to reduce costs and increase efficiency through alloy reduction.

[0003] The disadvantages and defects of the prior art in the above two aspects are very serious. First, the cooling capacity of the prior art water tank for rolled pieces is limited, and can only be reduced to about 950°C. The actual cooling temperature difference is about 100°C, which brings a bottleneck to the reduction of alloy and cost in the steelmaking process, and it is impossible to reduce the cost per ton of steel by reducing the use of a large amount of alloy. On the other hand, the water consumption of the water tank is very high, which will lead to a direct increase in water consumption cost, directly leading to an increase in the cost per ton of steel, directly affecting the low-energy and low-cost strategic positioning of modern steel, and at the same time affecting the long-term development of the enterprise. Therefore, the present invention proposes a system and method for double cooling of rolled pieces in a double-high-line water tank and saving water consumption to solve the problems existing in the prior art. Summary of the Invention

[0004] In response to the above problems, the present invention proposes a system and method for doubly cooling the rolled pieces in the double-high-line water tank and saving water consumption. The system and method for doubly cooling the rolled pieces in the double-high-line water tank and saving water consumption breaks through the technical bottleneck in water tank cooling control, and creates good conditions for further reducing costs by reducing alloys.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a system for doubling the temperature reduction and water consumption saving of rolled pieces in double high-line water tanks, including a total water source rolling process linkage opening and linkage closing system, a global cooling and resistance reduction and action time test and calculation system, a water consumption reduction control and spinning temperature bottleneck temperature reduction system, a water cooling variable integrated test and temperature reduction linkage alloy reduction system, the total water source rolling process linkage opening and linkage closing system is used to control the boiling water to supply water to the water tank by controlling the diaphragm cut-off valve after the rolled piece arrives at the water tank, and is also used to control the water tank to shut off by controlling the diaphragm cut-off valve after the rolled piece leaves the water tank; the global cooling and resistance reduction and action time test and calculation system is used to perform advance + delay combination optimization of control conditions to ensure the cooling effect and impact resistance of the head and tail of the rolled piece, and is also used to perform closed-loop control of the action time and adjustment correction time;

[0006] The water consumption reduction control and spinning temperature bottleneck temperature reduction system is used to adjust the high-speed wire water cooling control mode through experimental exploration and practical application, and is also used to reduce the spinning temperature of the high-speed wire to 850°C; the water cooling variable integrated test and temperature reduction linkage alloy reduction system is used to conduct integrated testing on the systematic effects of water volume, water pressure, flow, and water temperature reduction water cooling comprehensive variables, and is also used to control alloy usage in a linkage manner through quantitative cooling of the rolled piece temperature.

[0007] Further improvements are as follows: the total water source refers to the comprehensive components and systems that provide cooling water to all water tanks of the double-high line; the rolling process linkage start refers to the comprehensive drive start performed through rolling conditions and equipment operation interlocking during the normal rolling process; after the rolled piece reaches the water tank refers to the process in which the rolled piece passes through the rolling mill transmission and guide groove inertia during the normal rolling process, and then passes through the water tank; the rolling process linkage shutdown refers to the driving logic instruction output control based on the rolling mill transmission control, rolling mill interlocking control, water cooling condition comprehensive control, and timing logic control; the diaphragm cut-off valve refers to the drive through pneumatic execution, and the valve body main drive is performed through the connecting rod, thereby realizing the intelligent drive and intelligent adjustment of the electrical signal and the valve body execution signal.

[0008] Further improvements are as follows: the total water source rolling process linkage start and linkage shutdown system is composed of a total water source rolling process linkage start signal condition input system, a total water source rolling process linkage start signal logic identification and judgment system, a total water source rolling process linkage start logic instruction output system, a linkage shutdown-linkage shutdown signal condition input system, a linkage shutdown signal logic identification and judgment system, and a linkage shutdown logic instruction output system.

[0009] Further improvements are: full-area cooling refers to the cooling system of the entire water tank process and the entire water tank guide groove, resistance reduction refers to reducing the resistance of the rolled piece during rolling and transmission by designing the logical timing and action drive timing of the auxiliary pneumatic, electric, and hydraulic transmission of the rolled piece during rolling and advancement, advance + delay refers to first designing the trigger interlock pre-system, and then designing the intelligent delay adjustment and correction system, action time test refers to the full-process time test designed based on the command input, action output, connecting rod drive output, and action closed-loop feedback of the diaphragm control valve, the measurement system refers to the comprehensive measurement of the whole process based on the action link design and action timing connection design, the action time refers to the time from the diaphragm control valve receiving the command to the complete action, and the adjustment correction time refers to the quantitative adjustment correction time designed based on the dynamic working condition changes.

[0010] Further improvements are: the global cooling and resistance reduction and action time test and calculation system consists of a global cooling and resistance reduction rolling process identification and control system, a global cooling and resistance reduction link design and control system, a global cooling and resistance reduction combined action instruction drive system, an action time test and calculation signal end identification and acquisition system, an action time test and calculation logic drive system, and an action time test and calculation display and correction system.

[0011] Further improvements are as follows: water consumption reduction refers to the reduction of water consumption per ton of steel through adjustment during the normal rolling process; experimental exploration refers to the multi-angle adjustment test of various rolling conditions, interlocking conditions, and rolling parameters during the normal rolling process; practical application refers to the consolidation of good experimental results; wire drawing temperature refers to the temperature of finished product wire drawing during normal double-high wire rolling; bottleneck temperature drop refers to the temperature drop limit of the finished product based on the existing technology; reducing to 850°C means that the wire drawing temperature of the finished product reaches 850°C.

[0012] Further improvements are as follows: the water consumption reduction control and spinning temperature bottleneck temperature reduction system consists of a water consumption reduction control main valve end control optimization system, a water consumption reduction control water tank end action optimization system, a water consumption reduction control drainage end connection optimization system, a spinning temperature bottleneck temperature reduction water input control system, a spinning temperature bottleneck temperature reduction flow control system, and a spinning temperature bottleneck temperature reduction temperature closed-loop feedback system.

[0013] Further improvements are as follows: water cooling comprehensive variables refer to variable control designed based on the control factors and control conditions of water cooling. Water volume, water pressure, flow rate, and water temperature reduction are the concrete manifestations of water cooling comprehensive variables. By controlling and adjusting the concrete changes, combined with intelligent integrated input and output adjustment, the temperature drop effect is comprehensively adjusted; temperature drop linkage alloy reduction refers to reducing alloy based on the combination of temperature drop comprehensive collection, comprehensive regulation and alloy reduction model matching system. Quantitative cooling of rolled piece temperature refers to quantitative regulation of rolled piece temperature through various quantitative regulation links and various quantitative regulation components. Controlling alloy refers to reducing alloy usage through cooling control without changing the quality of related products.

[0014] Further improvements are as follows: the water-cooling variable integrated test and temperature-drop linkage alloy reduction system consists of a water-cooling variable integrated test variable design system, a water-cooling variable integrated test variable input system, a water-cooling variable integrated test effect identification and feedback system, a temperature-drop linkage alloy reduction temperature control quantification and logic connection system, a temperature-drop linkage alloy reduction model combination and output quantification system, and a temperature-drop linkage alloy reduction finished product quality control system.

[0015] A method for doubling the temperature of rolled pieces and saving water consumption in a double-high-line water tank comprises the following steps:

[0016] Step 1: Design a linkage opening system for the total water source and the rolling process. After the rolled pieces reach the water tank, the water supply to the water tank is controlled by controlling the membrane shut-off valve.

[0017] Step 2: Design a linkage shut-off system for the total water source during the rolling process. After the rolled pieces leave the water tank, the water tank is shut off by controlling the diaphragm shut-off valve.

[0018] Step 3: Design a full-area cooling and resistance reduction system, and optimize the control conditions in advance and delay combination to ensure the cooling effect and impact resistance of the head and tail of the rolled piece;

[0019] Step 4: Design a diaphragm control valve action time test and calculation system to perform closed-loop control of the action time and adjustment correction time;

[0020] Step 5: Design a water consumption reduction control system, and adjust the high-speed line water cooling control mode through experimental exploration and practical application to save water consumption;

[0021] Step 6: Design a temperature reduction system for the spinning bottleneck to reduce the spinning temperature of the high-speed wire to 850°C;

[0022] Step 7: Design a water cooling comprehensive variable integrated test system to conduct integrated testing on the systematic effects of water volume, water pressure, flow rate, and water temperature reduction water cooling comprehensive variables;

[0023] Step 8: Design a temperature reduction and alloy reduction system to reduce alloy usage in a coordinated manner by quantitatively cooling the temperature of the rolled piece.

[0024] The beneficial effects of the present invention are:

[0025] 1. After the rolled piece arrives at the water tank, the present invention controls the boiling water to supply the water tank by controlling the diaphragm shut-off valve. After the rolled piece leaves the water tank, the water tank is shut off by controlling the diaphragm shut-off valve. In order to ensure the cooling effect and impact resistance of the head and tail of the rolled piece, the control conditions are optimized by combining "advance + delay" and "action time test and calculation of the diaphragm regulating valve". Therefore, through continuous experimental exploration and practical application, it is verified that the above-mentioned control mode adjustment can not only save a lot of water consumption, but also reduce the spinning temperature of the high-speed wire to 850°C. The reduction in the entire spinning temperature is twice that of the conventional control method. This breaks through the technical bottleneck in water tank cooling control and creates good conditions for further reducing costs by reducing alloys.

[0026] 2. The present invention realizes optimized control of the comprehensive drive of temperature drop by the linked opening and closing of the total water source rolling process, greatly improves the cooling effect of the water tank through the design of cooling and resistance reduction, realizes efficient and economical control of water consumption per ton of steel through water consumption reduction control and temperature reduction of the bottleneck of wire drawing temperature, and realizes double cooling and synchronous reduction of water consumption per ton of steel through the integrated application of water cooling variables. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the system of the present invention;

[0028] Figure 2 Flow chart of the method of the present invention. DETAILED DESCRIPTION

[0029] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the examples. The examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0030] Example 1

[0031] according to Figure 1 As shown, this embodiment proposes a system for doubling the temperature reduction of rolled pieces in dual-high-speed wire water tanks and saving water consumption, including a system for coordinating the opening and closing of the total water source during the rolling process, a system for measuring and calculating global cooling, resistance reduction, and action time, a system for controlling water consumption reduction and reducing the bottleneck temperature of the spinning temperature, a system for integrating water cooling variables, and a system for coordinating temperature reduction and alloy reduction:

[0032] The main water source rolling process linkage opening and closing system is used to first design the main water source rolling process linkage opening system. After the rolled pieces arrive at the water tank, we control the membrane shut-off valve to control the water supply to the water tank. Then, the main water source rolling process linkage shut-off system is designed. After the rolled pieces leave the water tank, we control the membrane shut-off valve to control the water supply to the water tank.

[0033] The total water source refers to the comprehensive components and systems that provide cooling water to all water tanks of the double-high line. The rolling process linkage opening refers to the comprehensive drive opening through the rolling conditions and equipment operation interlocking during the normal rolling process. After the rolled piece reaches the water tank, it refers to the process in which the rolled piece passes through the rolling mill transmission and guide groove inertia during the normal rolling process, and then passes through the water tank; the rolling process linkage shutdown refers to the driving logic instruction output control based on the rolling mill transmission control, rolling mill interlocking control, water cooling condition comprehensive control, and timing logic control. The diaphragm cut-off valve refers to the drive through pneumatic execution, and the valve body trunk drive is carried out through the connecting rod, thereby realizing the intelligent drive and intelligent adjustment of the electrical signal and the valve body execution signal;

[0034] The global cooling and drag reduction and actuation time measurement and calculation system was used to first design the global cooling and drag reduction system. To ensure cooling efficiency and impact resistance at the head and tail of the rolled piece, we further optimized the control conditions using a "lead-in + delay" combination. We then designed an actuation time measurement and calculation system for the diaphragm control valve, achieving closed-loop control of actuation time and adjustment correction time.

[0035] Full-area cooling refers to the cooling system of the entire water tank process and the entire water tank guide groove. The resistance reduction system refers to the reduction of resistance to rolled pieces during rolling and transmission by designing the logical timing and action drive timing of various auxiliary pneumatic, electric, and hydraulic transmissions during rolling and forwarding of rolled pieces. "Advance + delay" means first designing the trigger interlock pre-system, and then designing the intelligent delay adjustment and correction system. The action time test refers to a full-process time test system designed based on the command input, action output, connecting rod drive output, and action closed-loop feedback of the diaphragm control valve. The measurement system refers to the comprehensive measurement of the entire process based on the action link design and the action timing connection design. The action time refers to the time from the diaphragm control valve receiving the command to the complete action. The adjustment correction time refers to the quantitative adjustment correction time designed based on the dynamic working condition changes;

[0036] The water consumption reduction control and spinning temperature bottleneck cooling system were first designed. Through continuous experimental exploration and practical application, the high-speed wire water cooling control mode was innovated and optimized, thereby significantly saving water consumption. Then, the spinning temperature bottleneck cooling system was designed. Through technological innovation and practical verification during the rolling process, the spinning temperature of the high-speed wire was reduced to 850°C.

[0037] Water consumption reduction refers to the reduction of water consumption per ton of steel through innovative design and optimization during the normal rolling process, thereby reducing the cost per ton of steel. Experimental exploration refers to the multi-angle adjustment test of various rolling conditions, interlocking conditions, and rolling parameters during the normal rolling process. Practical application refers to the consolidation and re-optimization of good experimental results. The spinning temperature refers to the temperature at which the finished product spins during the normal double-high-line rolling process. The bottleneck temperature drop means that the temperature drop of the finished product of the rolled piece based on the existing technology has reached the limit value and cannot be further broken through. Reducing to 850℃ means that the spinning temperature of the finished product reaches 850℃, which is a very far temperature. The actual temperature drop effect of the water tank is 200℃, and the actual temperature drop effective value of the existing technology is 100℃. Therefore, the present invention achieves a double cooling effect on the rolled piece in the double-high-line water tank;

[0038] The water cooling variable integrated test and temperature reduction linked alloy reduction system are used to first design a water cooling comprehensive variable integrated test system to achieve systematic integrated testing of water volume, water pressure, flow rate, and water temperature reduction water cooling comprehensive variables. Then, a temperature reduction linked alloy reduction system is designed to further achieve linked reduction of alloy usage and thus reduce costs through quantitative cooling of the rolled piece temperature.

[0039] Water cooling comprehensive variables refer to variable control systems designed based on various control factors and control conditions of water cooling. Water volume, water pressure, flow rate, and water temperature reduction are the specific manifestations of water cooling comprehensive variables. By controlling and adjusting the specific changes, and then performing intelligent integrated input and output adjustments, the comprehensive adjustment of the temperature drop effect can be achieved; temperature drop linkage alloy reduction refers to a combined alloy reduction system designed based on temperature drop comprehensive collection, comprehensive regulation and alloy reduction model matching system. Quantitative cooling of rolled piece temperature refers to the precise quantitative regulation of rolled piece temperature through various quantitative regulation links and various quantitative regulation components. Reducing alloys means that the quality of related products remains unchanged while reducing alloys through cooling control innovation, thereby significantly reducing costs;

[0040] The total water source rolling process linkage start and shutdown system consists of a total water source rolling process linkage start signal condition input system, a total water source rolling process linkage start signal logic identification and judgment system, a total water source rolling process linkage start logic instruction output system, a linkage shutdown-linkage shutdown signal condition input system, a linkage shutdown signal logic identification and judgment system, and a linkage shutdown logic instruction output system. The total water source rolling process linkage start and shutdown system achieves optimized control of the integrated temperature drop drive through innovative logic condition drive.

[0041] The global cooling, resistance reduction, and action time measurement and calculation system consists of a global cooling and resistance reduction rolling piece process identification and control system, a global cooling and resistance reduction link design and control system, a global cooling and resistance reduction combined action instruction drive system, an action time measurement and calculation signal end identification and acquisition system, an action time measurement and calculation logic drive system, and an action time measurement and calculation display and correction system. Through innovative design and optimization of cooling and resistance reduction, the global cooling, resistance reduction, and action time measurement and calculation system has significantly improved the cooling effect of the water tank.

[0042] The water consumption reduction control and spindle temperature bottleneck temperature reduction system consists of a water consumption reduction control main valve end control optimization system, a water consumption reduction control water tank end motion optimization system, a water consumption reduction control drainage end connection optimization system, a spindle temperature bottleneck temperature reduction water input control system, a spindle temperature bottleneck temperature reduction flow control system, and a spindle temperature bottleneck temperature reduction closed-loop feedback system. Through innovative designs to reduce water consumption, the water consumption reduction control and spindle temperature bottleneck temperature reduction system achieves efficient and economical control of water consumption per ton of steel.

[0043] The water-cooling variable integrated testing and temperature-drop linked alloy reduction system consists of a water-cooling variable integrated testing variable design system, a water-cooling variable integrated testing variable input system, a water-cooling variable integrated testing effect identification and feedback system, a temperature control quantification and logic connection system for temperature-drop linked alloy reduction, a temperature-drop linked alloy reduction model combination and output quantification system, and a temperature-drop linked alloy reduction finished product quality control system. Through the innovative design and application of integrated water-cooling variables, the water-cooling variable integrated testing and temperature-drop linked alloy reduction system achieves a doubled temperature reduction and a simultaneous reduction in water consumption per ton of steel.

[0044] Example 2

[0045] according to Figure 2 As shown, this embodiment proposes a method for doubling the temperature of rolled pieces and saving water consumption in a double-high-line water tank, including the following steps:

[0046] Design a linkage opening system for the total water source during the rolling process. After the rolled pieces reach the water tank, the water is supplied to the water tank by controlling the membrane shut-off valve.

[0047] Design a linkage shut-off system for the total water source during the rolling process. After the rolled pieces leave the water tank, the water tank is shut off by controlling the diaphragm shut-off valve.

[0048] Design a full-area cooling and resistance reduction system, and optimize the control conditions in advance and delay combination to ensure the cooling effect and impact resistance of the head and tail of the rolled piece;

[0049] Design a diaphragm control valve action time test and calculation system to perform closed-loop control of action time and adjustment correction time;

[0050] Design a water consumption reduction control system, adjust the high-speed line water cooling control mode through experimental exploration and practical application to save water consumption;

[0051] Designed a spinning temperature bottleneck temperature reduction system to reduce the spinning temperature of the high-speed wire to 850℃;

[0052] Design a water cooling comprehensive variable integrated test system to conduct integrated testing on the systematic effects of water volume, water pressure, flow rate, and water temperature reduction water cooling comprehensive variables;

[0053] Design a temperature reduction and alloy reduction system to reduce alloy usage in a coordinated manner by quantitatively cooling the rolled piece temperature.

[0054] The present invention controls the boiling water to supply water to the water tank by controlling the membrane shut-off valve after the rolled piece arrives at the water tank, and controls the water shut-off of the water tank by controlling the membrane shut-off valve after the rolled piece leaves the water tank. In order to ensure the cooling effect and impact resistance of the head and tail of the rolled piece, the control conditions are optimized by combining "advance + delay" and "action time test and calculation of the membrane regulating valve". Thus, through continuous experimental exploration and practical application, it is verified that the above-mentioned control mode adjustment can not only save a lot of water consumption, but also reduce the spinning temperature of the high-speed wire to 850°C. The reduction range of the entire spinning temperature is twice that of the conventional control method. The temperature drop value of the existing technology is 100°C, and the temperature drop value of the rolled piece in the water tank of the present invention is 200°C. It breaks through the technical bottleneck in water tank cooling control and creates good conditions for further reducing costs by reducing alloys. The present invention realizes optimized control of comprehensive temperature drop drive through the linkage opening and closing of the total water source rolling process, greatly improves the cooling effect of the water tank through the design of cooling and resistance reduction, realizes efficient and economical control of water consumption per ton of steel through water consumption reduction control and temperature reduction of the bottleneck of wire drawing temperature, and realizes double cooling and synchronous reduction of water consumption per ton of steel through the integrated application of water cooling variables.

[0055] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A system for doubling the temperature of rolled pieces in dual-high-speed water tanks and saving water consumption, including a system for coordinating the opening and closing of the total water source during the rolling process, a system for measuring and calculating global cooling, resistance reduction, and operating time, a system for controlling water consumption reduction and reducing the bottleneck temperature of spinning temperature, an integrated test system for water cooling variables, and a system for coordinating temperature reduction and alloy reduction. The system is characterized by: The total water source rolling process linkage opening and closing system is used to control the opening of water to supply water to the water tank by controlling the diaphragm shut-off valve after the rolled piece arrives at the water tank, and is also used to control the water tank to shut off water by controlling the diaphragm shut-off valve after the rolled piece leaves the water tank; the global cooling and resistance reduction and action time test and calculation system is used to optimize the control conditions by combining advance and delay to ensure the cooling effect and impact resistance of the head and tail of the rolled piece, and is also used to perform closed-loop control of the action time and adjustment correction time; The water consumption reduction control and spinning temperature bottleneck temperature reduction system is used to adjust the high-speed wire spinning water cooling control mode through experimental exploration and practical application, and is also used to reduce the spinning temperature of the high-speed wire spinning to 850°C. The water cooling variable integrated testing and temperature reduction linkage alloy reduction system is used to conduct integrated testing of the systematic effects of water volume, water pressure, flow rate, and water temperature reduction water cooling comprehensive variables, and is also used to control alloy usage in a linkage manner through quantitative cooling of the rolled piece temperature. Water consumption reduction refers to reducing water consumption per ton of steel through adjustment during the normal rolling process. Experimental exploration refers to multi-angle adjustment tests of various rolling conditions, interlocking conditions, and rolling parameters during the normal rolling process. Practical application refers to consolidating good experimental results. Wire laying temperature refers to the temperature of finished wire laying during normal double-high wire rolling. Bottleneck temperature drop refers to the temperature drop limit of the finished product based on existing technology. Reduction to 850°C means that the wire laying temperature of the finished product reaches 850°C. The water consumption reduction control and spinning temperature bottleneck temperature reduction system consists of a water consumption reduction control main valve end control optimization system, a water consumption reduction control water tank end action optimization system, a water consumption reduction control drainage end connection optimization system, a spinning temperature bottleneck temperature reduction water input control system, a spinning temperature bottleneck temperature reduction flow control system, and a spinning temperature bottleneck temperature reduction temperature closed-loop feedback system.

2. The system for doubling the temperature of rolled pieces and saving water consumption by using double-high-line water tanks according to claim 1 is characterized by: The total water source refers to the comprehensive components and systems that provide cooling water to all water tanks of the double-high line. The rolling process linkage start refers to the comprehensive drive start through the rolling conditions and equipment operation interlocking during the normal rolling process. After the rolled piece reaches the water tank, it refers to the process in which the rolled piece passes through the rolling mill transmission and guide groove inertia during the normal rolling process, and then passes through the water tank; the rolling process linkage shutdown refers to the driving logic instruction output control based on the rolling mill transmission control, rolling mill interlocking control, water cooling condition comprehensive control, and timing logic control. The diaphragm cut-off valve refers to the drive through pneumatic execution, and the valve body trunk is driven by the connecting rod, thereby realizing the intelligent drive and intelligent adjustment of the electrical signal and the valve body execution signal.

3. The system for doubling the temperature of rolled pieces and saving water consumption by using double-high-line water tanks according to claim 2 is characterized by: The total water source rolling process linkage start and linkage shutdown system is composed of a total water source rolling process linkage start signal condition input system, a total water source rolling process linkage start signal logic identification and judgment system, a total water source rolling process linkage start logic instruction output system, a linkage shutdown-linkage shutdown signal condition input system, a linkage shutdown signal logic identification and judgment system, and a linkage shutdown logic instruction output system.

4. The system for doubling the temperature of rolled pieces and saving water consumption by using double-high-line water tanks according to claim 3 is characterized by: Full-area cooling refers to the cooling system of the entire water tank process and the entire water tank guide groove. Resistance reduction refers to reducing the resistance of the rolled piece during rolling and transmission by designing the logical timing and action drive timing of the auxiliary pneumatic, electric, and hydraulic transmission of the rolled piece during rolling and advancement. Advance + delay refers to first designing the trigger interlock pre-system, and then designing the intelligent delay adjustment and correction system. Action time test refers to the full-process time test designed based on the command input, action output, connecting rod drive output, and action closed-loop feedback of the diaphragm control valve. The measurement system refers to the comprehensive measurement of the entire process based on the action link design and action timing connection design. The action time refers to the time from the diaphragm control valve receiving the command to the complete action. The adjustment correction time refers to the quantitative adjustment correction time designed based on the dynamic working condition changes.

5. The system for doubling the temperature of rolled pieces and saving water consumption by using double-high-line water tanks according to claim 4 is characterized by: The global cooling and resistance reduction and action time test and calculation system consists of a global cooling and resistance reduction rolling process identification and control system, a global cooling and resistance reduction link design and control system, a global cooling and resistance reduction combined action instruction drive system, an action time test and calculation signal end identification and collection system, an action time test and calculation logic drive system, and an action time test and calculation display and correction system.

6. The system for doubling the temperature of rolled pieces and saving water consumption by using double-high-line water tanks according to claim 5 is characterized by: Water cooling comprehensive variables refer to variable control designed based on water cooling control factors and control conditions. Water volume, water pressure, flow rate, and water temperature reduction are the specific manifestations of water cooling comprehensive variables. By controlling and adjusting the specific changes, combined with intelligent integrated input and output adjustment, the temperature reduction effect can be comprehensively adjusted. Temperature drop linkage alloy reduction refers to the reduction of alloy based on the combination of temperature drop comprehensive collection, comprehensive regulation and alloy reduction model matching system. Quantitative cooling of rolled piece temperature refers to the quantitative adjustment of rolled piece temperature through various quantitative regulation links and various quantitative regulation components. Alloy control refers to reducing alloy usage through cooling control without changing the quality of related products.

7. The system for doubling the temperature of rolled pieces and saving water consumption by using double-high-line water tanks according to claim 6 is characterized by: The water-cooling variable integrated test and temperature-drop linkage alloy reduction system consists of a water-cooling variable integrated test variable design system, a water-cooling variable integrated test variable input system, a water-cooling variable integrated test effect identification and feedback system, a temperature-drop linkage alloy reduction temperature control quantification and logic connection system, a temperature-drop linkage alloy reduction model combination and output quantification system, and a temperature-drop linkage alloy reduction finished product quality control system.

8. A method for doubling the temperature of rolled pieces and saving water consumption in double-high-line water tanks, characterized in that: The system for doubling the temperature of rolled pieces and saving water consumption by using a double-high-line water tank as described in any one of claims 1 to 7 comprises the following steps: Step 1: Design a linkage opening system for the total water source and the rolling process. After the rolled pieces reach the water tank, the water supply to the water tank is controlled by controlling the membrane shut-off valve. Step 2: Design a linkage shut-off system for the total water source during the rolling process. After the rolled pieces leave the water tank, the water tank is shut off by controlling the diaphragm shut-off valve. Step 3: Design a full-area cooling and resistance reduction system, and optimize the control conditions in advance and delay combination to ensure the cooling effect and impact resistance of the head and tail of the rolled piece; Step 4: Design a diaphragm control valve action time test and calculation system to perform closed-loop control of the action time and adjustment correction time; Step 5: Design a water consumption reduction control system, and adjust the high-speed line water cooling control mode through experimental exploration and practical application to save water consumption; Step 6: Design a temperature reduction system for the spinning bottleneck to reduce the spinning temperature of the high-speed wire to 850°C; Step 7: Design a water cooling comprehensive variable integrated test system to conduct integrated testing on the systematic effects of water volume, water pressure, flow rate, and water temperature reduction water cooling comprehensive variables; Step 8: Design a temperature reduction and alloy reduction system to reduce alloy usage in a coordinated manner by quantitatively cooling the temperature of the rolled piece.

Citation Information

Patent Citations

  • Technique for medium thin slab continuous rolling and producing Nb-microalloying steel and devcie

    CN101347792A

  • Method and device for controlling length of high-speed wire through-water cooling non-cold section

    CN109530461A