CN107267744B - A kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method - Google Patents

A kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method Download PDF

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Publication number
CN107267744B
CN107267744B CN201710365975.8A CN201710365975A CN107267744B CN 107267744 B CN107267744 B CN 107267744B CN 201710365975 A CN201710365975 A CN 201710365975A CN 107267744 B CN107267744 B CN 107267744B
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thermal crown
roll thermal
motor speed
thickness
width
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CN107267744A (en
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王奎越
吴迪
孟庆臣
杨俊生
王卫东
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BEIJING ANXIN TIANSHUO ENGINEERING TECHNOLOGY Co Ltd
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BEIJING ANXIN TIANSHUO ENGINEERING TECHNOLOGY Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/562—Details
    • C21D9/563—Rolls; Drums; Roll arrangements

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

The present invention provides a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method, and this method is applied to be blown annealing furnace bringing-up section guide roller edge using roll thermal crown motor driven cooling blower；This approach includes the following steps：(1) determine that strip width is classified；(2) determine that steel strip thickness is classified；(3) determine that strip linear velocity is classified；(4) roll thermal crown motor speed setting value is determined.This method solve bringing-up section guide roller in cold rolling continuous annealing furnace since the roll thermal crown that uneven heating generates brings the change of roller shape shape, so that the stress distribution of strip changes, the problem of leading to strip running deviation and cobble deformation.

Description

A kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method
Technical field
The present invention relates to cold rolling technical field of heat treatment, in particular to a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown Motor speed setting method.
Background technique
Continuous annealing unit is the important link of cold rolled strip steel production, has that process is short, yield is high and good product quality etc. Series of advantages.Wherein, continuous annealing furnace is the important component part of continuous annealing unit.The study found that strip stress distribution There is direct relation with strip running deviation and cobble deformation.However, guide roller roller shape is not fixed and invariable in annealing furnace, by In uneven heating, guide roller can generate roll thermal crown, its shape is made to change, and eventually lead to the change of strip stress distribution.This Invention provides a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting side to solve prior art problem Method, can improve the stress distribution of strip, and then avoid strip running deviation and wooden dipper bent.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor Revolving speed setting method solves in cold rolling continuous annealing furnace bringing-up section guide roller since the roll thermal crown that uneven heating generates brings roller shape shape The change of shape, so that the stress distribution of strip changes, the problem of leading to strip running deviation and cobble deformation.
In order to achieve the above object, the present invention is implemented with the following technical solutions：
A kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method, this method are applied to convex using heat It spends motor driven cooling blower and is blown annealing furnace bringing-up section guide roller edge；This approach includes the following steps：
(1) determine that strip width is classified；
(2) determine that steel strip thickness is classified；
(3) determine that strip linear velocity is classified；
(4) roll thermal crown motor speed setting value is determined.
Width in step (1) be classified as [1000-1100), [1100-1200), [1200-1450), [1450-1700), [1700-1800), [1800-1980], unit is millimeter.
In step (2) thickness of strip be classified as [0.300-0.500), [0.500-0.750), [0.750-1.100), [1.100-1.600), [1.600-2.000], unit is millimeter.
In step (3) linear velocity of strip be classified as [0.00-70.00), [70.00-140.00), [140.00- 210.00), [210.00-280.00), [280.00-480.00], unit be m/min.
Roll thermal crown motor speed is set in the form of percentage in step (4), i.e. the percentage of rated speed, tool Body method is as follows：
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 22%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 36%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [280.00- When 480.00], roll thermal crown motor speed setting value is 67%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 18%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 30%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 60%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [70.00- 140.00) when, roll thermal crown motor speed setting value is 24%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 38%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 68%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [280.00- When 480.00], roll thermal crown motor speed setting value is 90%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [70.00- 140.00) when, roll thermal crown motor speed setting value is 20%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 32%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 62%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 80%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [140.00- 210.00) when, roll thermal crown motor speed setting value is 20%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [210.00- 280.00) when, roll thermal crown motor speed setting value is 35%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [280.00- When 480.00], roll thermal crown motor speed setting value is 60%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [70.00- 140.00) when, roll thermal crown motor speed setting value is 26%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 40%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 70%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [280.00- When 480.00], roll thermal crown motor speed setting value is 100%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [70.00- 140.00) when, roll thermal crown motor speed setting value is 24%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 30%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 64%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 90%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [140.00- 210.00) when, roll thermal crown motor speed setting value is 25%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [210.00- 280.00) when, roll thermal crown motor speed setting value is 40%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [280.00- When 480.00], roll thermal crown motor speed setting value is 70%；
Above-mentioned unmentioned situation, roll thermal crown motor do not come into operation, and set without revolving speed.
Roll thermal crown motor speed parameter described in the method for the present invention is 1500rpm, and the cooling blower parameter total pressure is 1000Pa+/- 20Pa, flow 2200m3/h+/-35m3/ h, in the motor-driven cooling fan flow of roll thermal crown and wind Press it is constant in the case where, the motor speed setting value in this method applies also for any revolving speed matched with the cooling blower Roll thermal crown motor.
Revolving speed automatic setting method is：
(1) classify in upper computer software program to strip width, thickness and linear velocity first；
(2) upper computer software is carried out being classified and stored in host computer database, file by strip width, thickness and linear velocity Or in software, host computer database, file or software are stored in by the revolving speed percentage setting value in above-mentioned revolving speed setting method In；
(3) strip width, thickness data storage in the database, are indexed by band grade of steel, pass through PLC's with grade of steel Tracking system is sent to upper computer software program；Linear speed angle value is detected by speed measuring coder, and PLC is responsible for collected linear velocity Value is sent to upper computer software program；
(4) upper computer software is classified according to the width, thickness and linear velocity that automatically select strip with grade of steel and linear speed angle value；
(5) upper computer software is inquired and is set automatically the tachometer value of roll thermal crown motor by the classification of selection；
(6) configured roll thermal crown motor speed value is sent to the PLC controller at scene by host computer；
(7) PLC controller is convex to heat by AC converter or direct current speeder according to the speed setting value received It spends motor speed and carries out adjusted open loop；
(8) tachometer value of output is fed back to PLC by AC converter or direct current speeder, and will finally be turned by PLC Fast output valve feeds back to host computer interface and is shown；
(9) encoder for detecting strip linear velocity being arranged on field device is real by the actual linear speed angle value in scene When host computer fed back to by PLC, for carrying out linear velocity classification and being checked for operator.
Compared with prior art, the beneficial effects of the invention are as follows：
1, a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method proposed by the present invention, cold rolling continuous After moving back the application of stove heating section guide roller roll thermal crown motor speed setting method, annealing furnace bringing-up section guide roller can be efficiently controlled Roll thermal crown is generated, strip running deviation and cobble deformation are improved.
2, a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method proposed by the present invention, revolving speed are set Determining process is Automatic Control, is combined by the PLC system and host computer at scene, the thickness of steel band can be automatically configured according to grade of steel Degree, width realize that the revolving speed of roll thermal crown motor is set automatically according to the encoder automatic inspection line speed at scene.
Detailed description of the invention
Fig. 1 is the flow chart of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method of the invention；
The structure drawing of device of realization the method for the present invention in Fig. 2 embodiment of the present invention.
Specific embodiment
The specific embodiment that following present invention provides is described in detail.
As shown in Figure 1, a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method, this method application In using roll thermal crown motor driven cooling blower blowing annealing furnace bringing-up section guide roller edge；This approach includes the following steps：
(1) determine that strip width is classified；
(2) determine that steel strip thickness is classified；
(3) determine that strip linear velocity is classified；
(4) roll thermal crown motor speed setting value is determined.
Width in step (1) be classified as [1000-1100), [1100-1200), [1200-1450), [1450-1700), [1700-1800), [1800-1980], unit is millimeter.
In step (2) thickness of strip be classified as [0.300-0.500), [0.500-0.750), [0.750-1.100), [1.100-1.600), [1.600-2.000], unit is millimeter.
In step (3) linear velocity of strip be classified as [0.00-70.00), [70.00-140.00), [140.00- 210.00), [210.00-280.00), [280.00-480.00], unit be m/min.
Roll thermal crown motor speed is set in the form of percentage in step (4), i.e. the percentage of rated speed, tool Body method is as follows：
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 22%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 36%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [280.00- When 480.00], roll thermal crown motor speed setting value is 67%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 18%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 30%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 60%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [70.00- 140.00) when, roll thermal crown motor speed setting value is 24%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 38%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 68%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [280.00- 480.00] when, roll thermal crown motor speed setting value is 90%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [70.00- 140.00) when, roll thermal crown motor speed setting value is 20%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 32%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 62%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 80%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [140.00- 210.00) when, roll thermal crown motor speed setting value is 20%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [210.00- 280.00) when, roll thermal crown motor speed setting value is 35%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [280.00- When 480.00], roll thermal crown motor speed setting value is 60%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [70.00- 140.00) when, roll thermal crown motor speed setting value is 26%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 40%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 70%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [280.00- When 480.00], roll thermal crown motor speed setting value is 100%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [70.00- 140.00) when, roll thermal crown motor speed setting value is 24%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 30%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 64%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 90%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [140.00- 210.00) when, roll thermal crown motor speed setting value is 25%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [210.00- 280.00) when, roll thermal crown motor speed setting value is 40%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [280.00- When 480.00], roll thermal crown motor speed setting value is 70%；
Above-mentioned unmentioned situation, roll thermal crown motor do not come into operation, and set without revolving speed.
Roll thermal crown motor speed parameter described in the method for the present invention is 1500rpm, and the cooling blower parameter total pressure is 1000Pa+/- 20Pa, flow 2200m3/h+/-35m3/ h, in the motor-driven cooling fan flow of roll thermal crown and wind Press it is constant in the case where, the motor speed setting value in this method applies also for any revolving speed matched with the cooling blower Roll thermal crown motor.
Table 1 when with a thickness of [0.750-1.100) when, roll thermal crown motor speed is：
Width linear velocity [140.00-210.00) [210.00-280.00) [280.00-480.00]
[1000-1100) 22% 36% 67%
[1100-1200) 18% 30% 60%
Table 2 when with a thickness of [1.100-1.600) when, roll thermal crown motor speed is：
When with a thickness of [1.600-2.000], roll thermal crown motor speed is table 3：
Width linear velocity [70.00-140.00) [140.00-210.00) [210.00-280.00) [280.00-480.00]
[1000-1100) 26% 40% 70% 100%
[1100-1200) 24% 34% 64% 90%
[1200-1450) 25% 40% 70%
In the above method, closed interval symbol, table are indicated about " [" and "] " in steel strip thickness, the good linear velocity range of width Demonstration contains endpoint in enclosing, " (" ") " indicate open interval symbol, it indicates not containing endpoint in range, such as：[70.00- 140.00) indicate to include 70.00 in range, do not include 140.00, i.e. 70.00≤X < 140.00.
Specific embodiment：Be 1500rpm with roll thermal crown motor speed parameter, fan parameter total pressure it is (+/- for 1000Pa 20Pa), flow 2200m3/h(+/-35m3/ h) for, by taking the strip of live actual production as an example, steel strip thickness and width point Not Wei 1.5mm, 1200mm, thickness 1.5mm, correspond to [1.100-1.600) classification, width 1200mm corresponds to [1200- 1450) classification.When strip runs to bringing-up section from preheating section, the speed of service of strip is 200m/min, corresponds to speed [140.00-210.00) classification, then available roll thermal crown motor speed setting value is 20%, i.e. roll thermal crown motor uses volume The revolving speed driving blower for determining 20%, the 300rpm of revolving speed 1500rpm, is blown annealing furnace bringing-up section guide roller edge, reduces guiding The temperature difference of roller edge and middle part avoids the generation of roll thermal crown, and then improves strip running deviation and cobble deformation.
As shown in Fig. 2, the apparatus structure schematic diagram of method application, roll thermal crown motor speed are set automatically to realize the present invention Method is：
(1) classify in upper computer software program to strip width, thickness and linear velocity first；
(2) upper computer software is carried out being classified and stored in host computer database, file by strip width, thickness and linear velocity Or in software, host computer database, file or software are stored in by the revolving speed percentage setting value in above-mentioned revolving speed setting method In；
(3) strip width, thickness data storage in the database, are indexed by band grade of steel, pass through PLC's with grade of steel Tracking system is sent to upper computer software program；Linear speed angle value is detected by speed measuring coder, and PLC is responsible for collected linear velocity Value is sent to upper computer software program；
(4) upper computer software is classified according to the width, thickness and linear velocity that automatically select strip with grade of steel and linear speed angle value；
(5) upper computer software is inquired and is set automatically the tachometer value of roll thermal crown motor by the classification of selection；
(6) configured roll thermal crown motor speed value is sent to the PLC controller at scene by host computer；
(7) PLC controller is convex to heat by AC converter or direct current speeder according to the speed setting value received It spends motor speed and carries out adjusted open loop；
(8) tachometer value of output is fed back to PLC by AC converter or direct current speeder, and will finally be turned by PLC Fast output valve feeds back to host computer interface and is shown；
(9) encoder for detecting strip linear velocity being arranged on field device is real by the actual linear speed angle value in scene When host computer fed back to by PLC, for carrying out linear velocity classification and being checked for operator.
If roll thermal crown motor is configured to alternating current generator, adjusted the speed using frequency Varying and speed changing method, if roll thermal crown is electric Machine is configured to direct current generator, then is adjusted the speed using DC speed regulation driving device.
Above embodiments are implemented under the premise of the technical scheme of the present invention, give detailed embodiment and tool The operating process of body, but protection scope of the present invention is not limited to the above embodiments.Method therefor is such as without spy in above-described embodiment Not mentionleting alone bright is conventional method.

Claims (3)

1. a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method, this method is applied to use roll thermal crown Motor driven cooling blower is blown annealing furnace bringing-up section guide roller edge；It is characterized in that, this approach includes the following steps：
(1) determine that strip width is classified；
(2) determine that steel strip thickness is classified；
(3) determine that strip linear velocity is classified；
(4) roll thermal crown motor speed setting value is determined；
Width in step (1) be classified as [1000-1100), [1100-1200), [1200-1450), [1450-1700), [1700-1800), [1800-1980], unit is millimeter；
In step (2) thickness of strip be classified as [0.300-0.500), [0.500-0.750), [0.750-1.100), [1.100-1.600), [1.600-2.000], unit is millimeter；
In step (3) linear velocity of strip be classified as [0.00-70.00), [70.00-140.00), [140.00-210.00), [210.00-280.00), [280.00-480.00], unit be m/min；
Roll thermal crown motor speed is set in the form of percentage in step (4), i.e. the percentage of rated speed, specific side Method is as follows：
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 22%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 36%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1000-1100), [280.00- When 480.00], roll thermal crown motor speed setting value is 67%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 18%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 30%；
When the thickness, width, linear velocity of strip respectively corresponds [0.750-1.100), [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 60%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [70.00- 140.00) when, roll thermal crown motor speed setting value is 24%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 38%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 68%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1000-1100), [280.00- When 480.00], roll thermal crown motor speed setting value is 90%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [70.00- 140.00) when, roll thermal crown motor speed setting value is 20%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 32%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 62%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 80%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [140.00- 210.00) when, roll thermal crown motor speed setting value is 20%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [210.00- 280.00) when, roll thermal crown motor speed setting value is 35%；
When the thickness, width, linear velocity of strip respectively corresponds [1.100-1.600), [1200-1450), [280.00- When 480.00], roll thermal crown motor speed setting value is 60%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [70.00- 140.00) when, roll thermal crown motor speed setting value is 26%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [140.00- 210.00) when, roll thermal crown motor speed setting value is 40%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [210.00- 280.00) when, roll thermal crown motor speed setting value is 70%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1000-1100), [280.00- When 480.00], roll thermal crown motor speed setting value is 100%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [70.00- 140.00) when, roll thermal crown motor speed setting value is 24%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [140.00- 210.00) when, roll thermal crown motor speed setting value is 30%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [210.00- 280.00) when, roll thermal crown motor speed setting value is 64%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1100-1200), [280.00- When 480.00], roll thermal crown motor speed setting value is 90%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [140.00- 210.00) when, roll thermal crown motor speed setting value is 25%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [210.00- 280.00) when, roll thermal crown motor speed setting value is 40%；
When the thickness, width, linear velocity of strip respectively correspond [1.600-2.000], [1200-1450), [280.00- When 480.00], roll thermal crown motor speed setting value is 70%；
Above-mentioned unmentioned situation, roll thermal crown motor do not come into operation, and set without revolving speed.
2. a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method according to claim 1, It is characterized in that, roll thermal crown motor speed parameter described in the method for the present invention is 1500rpm, and the cooling blower parameter total pressure is 1000Pa+/- 20Pa, flow 2200m3/h+/-35m3/ h, in the motor-driven cooling fan flow of roll thermal crown and wind Press it is constant in the case where, the motor speed setting value in this method applies also for any revolving speed matched with the cooling blower Roll thermal crown motor.
3. a kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method according to claim 1, It is characterized in that, revolving speed automatic setting method is：
(1) classify in upper computer software program to strip width, thickness and linear velocity first；
(2) upper computer software be classified and stored in host computer database, file or soft by strip width, thickness and linear velocity In part, it is stored in host computer database, file or software by the revolving speed percentage setting value in above-mentioned revolving speed setting method；
(3) strip width, thickness data storage in the database, are indexed, the tracking for passing through PLC with grade of steel by band grade of steel System is sent to upper computer software program；Linear speed angle value is detected by speed measuring coder, and PLC is responsible for sending out collected linear speed angle value Give upper computer software program；
(4) upper computer software is classified according to the width, thickness and linear velocity that automatically select strip with grade of steel and linear speed angle value；
(5) upper computer software is inquired and is set automatically the tachometer value of roll thermal crown motor by the classification of selection；
(6) configured roll thermal crown motor speed value is sent to the PLC controller at scene by host computer；
(7) PLC controller is electric to roll thermal crown by AC converter or direct current speeder according to the speed setting value received Machine revolving speed carries out adjusted open loop；
(8) tachometer value of output is fed back to PLC by AC converter or direct current speeder, and finally that revolving speed is defeated by PLC Value feeds back to host computer interface and is shown out；
(9) encoder for detecting strip linear velocity being arranged on field device leads to the actual linear speed angle value in scene in real time It crosses PLC and feeds back to host computer, for carrying out linear velocity classification and being checked for operator.
CN201710365975.8A 2017-05-23 2017-05-23 A kind of cold rolling continuous annealing furnace bringing-up section guide roller roll thermal crown motor speed setting method Expired - Fee Related CN107267744B (en)

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