CN215865787U - Automatic detection mechanism for squeezing roller between pickling tanks - Google Patents
Automatic detection mechanism for squeezing roller between pickling tanks Download PDFInfo
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- CN215865787U CN215865787U CN202122178102.0U CN202122178102U CN215865787U CN 215865787 U CN215865787 U CN 215865787U CN 202122178102 U CN202122178102 U CN 202122178102U CN 215865787 U CN215865787 U CN 215865787U
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Abstract
The utility model provides an automatic detection mechanism for a squeezing roller between pickling tanks, which comprises a No. 1 squeezing roller, a No. 2 squeezing roller, a No. 3 squeezing roller, a No. 1 pickling tank, a No. 2 pickling tank, a No. 3 pickling tank, a No. 1 acid liquor circulation tank, a No. 2 acid liquor circulation tank, a No. 3 acid liquor circulation tank and a No. 1 rinsing tank; the three acid liquor circulating tanks are respectively connected with a first indicating liquid level controller, a second indicating liquid level controller and a third indicating liquid level controller; a first flow indicator is connected to a pipeline for conveying neo-acid; a pipeline three-tap pipeline four at a circulating pump three outlet of the 3# acid liquor circulating tank is connected into the 2# acid liquor circulating tank, and a control valve I and a flow indicator II are arranged on the pipeline four; a fifth pipeline tapping-off line of a second outlet of a second circulating pump of the 2# acid liquor circulating tank is connected into the 1# acid liquor circulating tank, and a second control valve and a third flow indicator are arranged on the fifth pipeline; a fourth circulating pump and a fourth flow indicator are arranged on a sixth pipeline of the 1# acid liquor circulating tank; the utility model can realize the dynamic transmission updating of acid liquor and the automatic detection of the state of the squeezing roller between the pickling tanks, and can change the squeezing roller according to the standard.
Description
Technical Field
The utility model relates to the technical field of strip steel surface cleaning, in particular to an automatic detection mechanism for a squeezing roller between pickling tanks.
Background
The raw material of the cold-rolled strip steel is hot-rolled strip steel, and before rolling, the surface oxide scale of the hot-rolled strip steel is removed through an acid washing process. Continuously advancing strip steel → No. 1 acid tank → No. 2 acid tank → No. 3 acid tank. New acid liquid → 3# tank → 2# tank → 1# tank → output waste acid, realizing successive renewal of acid liquid. Tank # 3 had the highest free acid concentration, tank # 2 was the second and tank # 1 was the lowest. The 1# tank had the highest ferric chloride concentration, the 2# tank was the second, and the 3# tank was the lowest. The acid liquor circulates between the tank and the corresponding tank. The squeezing roller is used for reducing the carrying-out of the acid liquor and is replaced periodically so as to maintain the concentration of the free acid in each groove. However, the existing acid liquor overflow transmission mode is slow in acid liquor transmission speed and lagged, the concentration of free acid cannot be accurately controlled, and meanwhile, the state of a squeezing roller between pickling tanks cannot be automatically detected.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned technical problems, an automatic detection mechanism for a squeeze roll between pickling tanks is provided. The utility model realizes the dynamic transmission updating of acid liquor and the automatic detection of the state of a drying roll between pickling tanks and realizes the replacement according to the standard by mainly arranging a first indicating liquid level controller, a second indicating liquid level controller, a third indicating liquid level controller, a first flow indicator, a second flow indicator, a third flow indicator, a fourth flow indicator, a first control valve and a second control valve. The technical means adopted by the utility model are as follows:
an automatic detection mechanism of wringing roller between descaling baths, includes: a No. 1 squeezing roller, a No. 2 squeezing roller, a No. 3 squeezing roller, a No. 1 pickling tank, a No. 2 pickling tank, a No. 3 pickling tank, a No. 1 acid liquor circulating tank, a No. 2 acid liquor circulating tank, a No. 3 acid liquor circulating tank and a No. 1 rinsing tank, the top of each pickling tank is provided with a pickling tank cover, two sides of the 1# pickling tank are provided with a 1# overflow tank and a 2# overflow tank, two sides of the 2# pickling tank are provided with a 3# overflow tank and a 4# overflow tank, two sides of the 3# pickling tank are provided with a 5# overflow tank and a 6# overflow tank, the 2# overflow tank and the 3# overflow tank are adjacently arranged through a first set partition wall, the 4# overflow tank and the 5# overflow tank are adjacently arranged through a second set partition wall, the 6# overflow tank is adjacently arranged with a 1# rinsing tank through a third partition wall, a 1# drying roll is arranged at the top of the first partition wall, a 2# drying roll is arranged at the top of the second partition wall, and the 3# drying roll is arranged in the 6# overflow tank;
surrounding and blocking stones are arranged on two sides of each pickling tank, and overflow of each pickling tank overflows the surrounding and blocking stones and flows into overflow grooves on two sides respectively; introducing acid liquor after pickling the strip steel in each pickling tank and acid liquor in overflow tanks at two sides into corresponding acid liquor circulating tanks;
the No. 1 acid liquor circulating tank is connected with the No. 1 pickling tank through a first pipeline and a first heater of a circulating pump arranged on the first pipeline, the No. 2 acid liquor circulating tank is connected with the No. 2 pickling tank through a second pipeline and a second heater of a circulating pump arranged on the second pipeline, and the No. 3 acid liquor circulating tank is connected with the No. 3 pickling tank through a third pipeline and a third heater of a circulating pump arranged on the third pipeline; the No. 1 acid liquor circulating tank, the No. 2 acid liquor circulating tank and the No. 3 acid liquor circulating tank are respectively connected with a first indicating liquid level controller, a second indicating liquid level controller and a third indicating liquid level controller;
inputting fresh acid into a No. 3 acid liquor circulating tank, wherein a first flow indicator is connected to a pipeline for conveying the fresh acid;
a pipeline three at the outlet of the circulating pump three is connected with a pipeline four, the pipeline four is connected with the No. 2 acid liquor circulating tank, and the pipeline four is connected with a control valve one in series, so that part of the acid liquor in the No. 3 acid liquor circulating tank is separated and conveyed to the No. 2 acid liquor circulating tank; a flow indicator II is also arranged on the pipeline IV and used for controlling the control valve I;
a pipeline II at the outlet of the circulating pump II is connected with a discharge pipeline V, the pipeline V is connected with the No. 1 acid liquor circulating tank, the pipeline V is connected with a control valve II in series, and part of the acid liquor in the No. 2 acid liquor circulating tank is separated and conveyed to the No. 1 acid liquor circulating tank; a flow indicator III is also arranged on the pipeline V and used for controlling the control valve II;
the No. 1 acid liquor circulating tank is also connected with a pipeline six, and a circulating pump four is arranged on the pipeline six and used for outputting waste acid; a flow indicator IV is also arranged on the pipeline VI and is used for controlling the circulating pump IV;
the first indicating liquid level controller, the second indicating liquid level controller, the third indicating liquid level controller, the first flow indicator, the second flow indicator, the third flow indicator, the fourth flow indicator, the first control valve and the second control valve are electrically connected with a computer.
Further, a liquid level control-abnormal flow guiding mode is adopted, the opening degrees of the first control valve and the second control valve are controlled, the liquid levels of the 1# acid liquor circulation tank and the 3# acid liquor circulation tank are kept equal, and the liquid levels are used for adjusting the liquid levels of the acid liquor circulation tanks.
Furthermore, a flow control-normal flow guiding mode is adopted, the opening degree of the first control valve and the second control valve is controlled, the flow rate of each section of acid liquor is kept equal, namely, a first value of the flow indicator is two values of the flow indicator, and a third value of the flow indicator is four values of the flow indicator, so that the acid liquor is updated in a balanced manner, and a foundation is laid for automatically detecting the state of the squeezing roller.
Further, under the condition that the carrying amount of the 3# squeezing roller per unit area is known, and the flow indicator has a first value, a second value, a third value and a fourth value, the liquid level variation of the 1# acid liquor circulation tank is the carrying amount of the 1# squeezing roller, and the carrying amount of the 1# squeezing roller enters the 2# acid liquor circulation tank after entering the 2# pickling tank; the liquid level variation of the 3# acid liquor circulation tank is the amount of taking out the 2# squeezing roller and the 3# squeezing roller, the 2# squeezing roller brings the acid liquor into the 3# acid liquor circulation tank, and the 3# squeezing roller brings out the acid liquor of the 3# acid liquor circulation tank.
Further, the band steel output in unit time is divided by the band steel area passing through the wringing roller in unit time, namely the band steel output in unit area is taken out and is the standard for evaluating the wringing effect; the smaller the unit area carrying amount is, the better the squeezing effect is; the larger the amount taken out per unit area, the worse the wringing effect.
Furthermore, the volume of each acid liquor circulation tank is 40m3The level measurement is accurate to 1%.
Further, the PH value of the No. 1 rinsing tank is more than or equal to 0.
Further, the liquid level difference of the No. 1 acid liquor circulation tank is equal to an initial liquid level-time difference liquid level;
the liquid level difference of the 3# acid liquor circulation tank is equal to the time difference liquid level + (the hour carrying amount of the 3# wringing roller is divided by the tank volume) -the initial liquid level;
the hourly output of the No. 1 squeezing roller is equal to the liquid level difference of the No. 1 acid liquor circulation tank multiplied by the tank volume;
the hour carrying-out quantity of the No. 2 squeezing roller is equal to the liquid level difference of the No. 3 acid liquor circulation tank multiplied by the tank volume;
the small-hour carrying-out quantity of the 3# drying roller is the carrying-out quantity of the small-hour strip steel area multiplied by the unit area;
the unit area carrying-out quantity of the No. 1 wringing roller is equal to the hour carrying-out quantity of the No. 1 wringing roller divided by hour passing strip area;
the unit area take-up of the 2# wringing roller is equal to the hour take-up of the 2# wringing roller divided by hour to pass through the area of the strip.
Further, the wringing standards of the No. 1 wringing roller and the No. 2 wringing roller are as follows: amount taken out per unit area of 100ml/m2(ii) a The squeezing standard of the No. 3 squeezing roller is as follows: carry-over amount per unit area of 40ml/m2。
Compared with the prior art, the utility model has the following advantages:
1. the automatic detection mechanism for the squeezing roller between the pickling tanks updates the online acid liquid in a power transmission mode, does not need to stop the pickling tank, does not need to open a pickling tank cover on site, controls and calculates the actual state of the squeezing roller in a flow guide mode, and prompts whether the squeezing roller is replaced, so that the detection automation of the squeezing roller is realized.
2. The automatic detection mechanism for the squeezing rollers between the pickling tanks provided by the utility model realizes the change from regular replacement to replacement according to the efficiency state according to the state comparison standard replacement of the detected squeezing rollers, and provides necessary scientific guarantee for the execution of the production process.
3. The automatic detection mechanism for the squeezing rollers between the pickling tanks, provided by the utility model, can timely find and replace the squeezing rollers with problems, and also avoid unnecessary replacement of normal rollers.
Based on the reasons, the utility model can be widely popularized in the fields of automatic detection of the squeezing rollers between pickling tanks and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. no. 1 wringing roller; 2. 2# drying roller; 3. 3# drying roller; 4. a No. 1 pickling tank; 5. a No. 2 pickling tank; 6. a 3# pickling tank; 7. 1# acid liquor circulation tank; 8. 2# acid liquor circulation tank; 9. 3# acid liquor circulation tank; 10. a # 1 rinsing tank; LIC1, indicating liquid level controller I; LIC2, indicating liquid level controller II; LIC3, indicating liquid level controller III; FIC1, flow indicator one; FIC2, flow indicator two; FIC3, flow indicator three; FIC4, flow indicator four; v1, a first control valve; v2 and a control valve II; p1, circulating pump I; p2 and a circulating pump II; p3 and circulating pump III.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides an automatic detection mechanism for a wiping roll between pickling tanks, which is characterized by comprising: the No. 1 drying roll 1, the No. 2 drying roll 2, the No. 3 drying roll 3, the No. 1 pickling tank 4, the No. 2 pickling tank 5, the No. 3 pickling tank 6, the No. 1 acid liquor circulating tank 7, the No. 2 acid liquor circulating tank 8, the No. 3 acid liquor circulating tank 9 and the No. 1 rinsing tank 10, an acid tank cover is arranged at the top of each pickling tank, a No. 1 overflow tank and a No. 2 overflow tank are arranged on two sides of the No. 1 pickling tank 4, a No. 3 overflow tank and a No. 4 overflow tank are arranged on two sides of the No. 2 pickling tank 5, a No. 5 overflow tank and a No. 6 overflow tank are arranged on two sides of the No. 3 pickling tank 6, the No. 2 overflow tank and the No. 3 overflow tank are adjacently arranged through a first partition wall, the No. 4 overflow tank and the No. 5 overflow tank are adjacently arranged through a third partition wall, the No. 6 is adjacently arranged through the third partition wall and the No. 1 rinsing tank 10, the No. 1 drying roll 1 is arranged at the top of the first partition wall, the No. 2 drying roll 2 is arranged at the top of the second partition wall, the No. 3 drying roller 3 is arranged in the No. 6 overflow groove;
surrounding and blocking stones are arranged on two sides of each pickling tank, and overflow of each pickling tank overflows the surrounding and blocking stones and flows into overflow grooves on two sides respectively; introducing acid liquor after pickling the strip steel in each pickling tank and acid liquor in overflow tanks at two sides into corresponding acid liquor circulating tanks;
the 1# acid liquor circulating tank 7 is connected with the 1# pickling tank 4 through a first pipeline and a first circulating pump P1 and a first heater which are arranged on the first pipeline, the 2# acid liquor circulating tank 8 is connected with the 2# pickling tank 5 through a second pipeline and a second circulating pump P2 and a second heater which are arranged on the second pipeline, and the 3# acid liquor circulating tank 9 is connected with the 3# pickling tank 6 through a third pipeline and a third circulating pump P3 and a third heater which are arranged on the third pipeline; the No. 1 acid liquor circulation tank 7, the No. 2 acid liquor circulation tank 8 and the No. 3 acid liquor circulation tank 9 are respectively connected with a first indication liquid level controller LIC1, a second indication liquid level controller LIC2 and a third indication liquid level controller LIC 3;
inputting fresh acid into the No. 3 acid liquor circulating tank 9, and connecting a flow indicator-FIC 1 on a pipeline for conveying the fresh acid;
a third pipeline at the outlet of the third circulating pump P3 is connected with a fourth pipeline, the fourth pipeline is connected with the No. 2 acid liquor circulating tank 8, and the fourth pipeline is connected with a first control valve V1 in series, so that a part of the acid liquor in the No. 3 acid liquor circulating tank 9 is separated and conveyed to the No. 2 acid liquor circulating tank 8; a second flow indicator FIC2 is also arranged on the fourth pipeline and is used for controlling a first control valve V1;
a pipeline II at the outlet of the second circulating pump P2 is connected with a pipeline V, the pipeline V is connected with the 1# acid liquor circulating tank 7, and the pipeline V is connected with a control valve II V2 in series, so that a part of the acid liquor in the 2# acid liquor circulating tank 8 is separated and conveyed to the 1# acid liquor circulating tank 7; a third FIC3 flow indicator is also arranged on the pipeline five and is used for controlling a second V2 control valve;
the No. 1 acid liquor circulating tank 7 is also connected with a pipeline six, and a circulating pump four is arranged on the pipeline six and used for outputting waste acid; a flow indicator four FIC4 is also arranged on the pipeline six and is used for controlling the circulating pump four;
the first indication liquid level controller LIC1, the second indication liquid level controller LIC2, the third indication liquid level controller LIC3, the first flow indicator FIC1, the second flow indicator FIC2, the third flow indicator FIC3, the fourth flow indicator FIC4, the first control valve V1 and the second control valve V2 are all electrically connected with the computer.
In a preferred embodiment, a liquid level control-abnormal diversion mode is adopted, and the opening degrees of a first control valve V1 and a second control valve V2 are controlled to keep the liquid levels of the No. 1 acid liquor circulating tanks 7-3 acid liquor circulating tanks 9 equal, so that the liquid levels of the acid liquor circulating tanks are adjusted.
As a preferred embodiment, a flow control-normal diversion mode is adopted, the opening degrees of a first control valve V1 and a second control valve V2 are controlled, the flow rates of all sections of acid liquor are kept equal, namely, a first flow indicator FIC1 value is equal to a second flow indicator FIC2 value is equal to a third flow indicator FIC3 value is equal to a fourth flow indicator FIC4 value, acid liquor balance updating is realized, and a foundation is laid for automatically detecting the state of the wringing roller.
In a preferred embodiment, under the condition that the carrying amount per unit area of the 3# wringing roller 3 is known, and the first flow indicator FIC1 value is equal to the second flow indicator FIC2 value, and the third flow indicator FIC3 value is equal to the fourth flow indicator FIC4 value, the liquid level change amount of the 1# acid solution circulation tank 7 is the carrying amount of the 1# wringing roller 1, and the carrying amount of the 1# wringing roller 1 enters the 2# acid solution circulation tank 5 and then enters the 2# acid solution circulation tank 8 within a certain time; the liquid level variation of the 3# acid liquor circulation tank 9 is the carrying-out amount of the 2# squeezing roller 2 and the 3# squeezing roller 3, the 2# squeezing roller 2 carries the acid liquor into the 3# acid liquor circulation tank 9, and the 3# squeezing roller 3 carries the acid liquor out of the 3# acid liquor circulation tank 9.
In a preferred embodiment, the band output per unit time is divided by the area of the band steel passing through the wringing roller per unit time, namely the band output per unit area of the band steel is taken as a standard for evaluating the wringing effect; the smaller the unit area carrying amount is, the better the squeezing effect is; the larger the amount taken out per unit area, the worse the wringing effect.
In a preferred embodiment, each acid liquor circulation tank has a volume of 40m3The level measurement is accurate to 1%.
In a preferred embodiment, the pH of the No. 1 rinse tank 10 is 0 or more.
In a preferred embodiment, the level difference of the # 1 acid liquor circulation tank 7 is equal to an initial level-time difference level;
the liquid level difference of the 3# acid liquor circulation tank 9 is equal to the time difference liquid level + (the hour carrying-out amount of the 3# wringing roller 3 is divided by the tank volume) -the initial liquid level;
the hour carrying-out amount of the No. 1 squeezing roller 1 is equal to the liquid level difference of the No. 1 acid liquor circulation tank 7 multiplied by the tank volume;
the hour carrying-out amount of the 2# squeezing roller 2 is equal to the liquid level difference of the 3# acid liquor circulation tank 9 multiplied by the tank volume;
the hour carrying-out quantity of the 3# drying roller 3 is the carrying-out quantity of the strip steel by the area multiplied by the unit area when the hour carrying-out quantity is hour;
the unit area carrying-out quantity of the 1# wringing roller 1 is equal to the hour carrying-out quantity of the 1# wringing roller 1 divided by hour passing through the area of the strip steel;
the unit area take-up amount of the 2# wringing roller 2 is equal to the hour take-up amount of the 2# wringing roller 2 divided by hour to pass through the area of the strip.
As a preferred embodiment, the squeezing standards of the 1# squeezing roller 1 and the 2# squeezing roller 2 are: amount taken out per unit area of 100ml/m2(ii) a The squeezing standards of the No. 3 squeezing roller 3 are as follows: carry-over amount per unit area of 40ml/m2。
Example 1
In order to realize the dynamic transmission updating of acid liquor and the automatic detection of the state of a drying roller between pickling tanks, the utility model comprises the following steps:
first, dynamic diversion
Communication pipes (communication pipes between the 1# acid liquor circulation tank and the 2# acid liquor circulation tank and between the 2# acid liquor circulation tank and the 3# acid liquor circulation tank) are eliminated. And a tapping pipeline at the outlet of the third circulating pump P3 is connected to the No. 2 acid liquor circulating tank, and a control valve V1 is connected in series in the middle of the tapping pipeline, so that part of the acid liquor in the No. 3 acid liquor circulating tank is separated and conveyed to the No. 2 acid liquor circulating tank. And a tapping pipeline at the outlet of the second circulating pump P2 is connected to the 1# acid liquor circulating tank, and the middle part of the tapping pipeline is connected in series with a second control valve V2, so that part of the acid liquor in the 2# acid liquor circulating tank is separated and conveyed to the 1# acid liquor circulating tank. The conventional acid liquor overflow transmission mode is changed into power transmission, and the method is high in acid liquor transmission speed and free of lag; the concentration of the free acid is accurately controlled.
1. Liquid level control-non-normal diversion mode. And controlling the opening degrees of the first control valve V1 and the second control valve V2, keeping the liquid levels of the 1-3 # acid liquor circulation tanks equal, and adjusting the liquid level of the acid liquor circulation tank.
2. Flow control-normal diversion mode. The opening degrees of the first control valve V1 and the second control valve V2 are controlled, the flow rates of the acid liquid in all sections are kept equal, namely FIC1 is equal to FIC2 and FIC3 is equal to FIC4, balanced updating of the acid liquid is achieved, and a foundation is laid for automatic detection of the state of the wringing roller.
Second, principle of automatic detection of squeezing roller
1. The discharge amount in unit time and the liquid level change of the acid liquor circulation tank. The amount of the band taken per unit area of the No. 3 wringing roller is known (40 ml/m)2) Under the condition that FIC1 is FIC2 is FIC3 is FIC4, the liquid level variation of the 1# acid liquor circulation tank is the carrying-out amount of the 1# wringing roller, and the carrying-out amount of the 1# wringing roller enters the 2# acid tank and then enters the 2# acid liquor circulation tank within a certain time. The liquid level variation of the 3# acid liquor circulation tank is the carrying-out amount of the 2# squeezing roller and the 3# squeezing roller, the 2# squeezing roller carries the acid liquor into the 3# acid liquor circulation tank, and the 3# squeezing roller carries the acid liquor out of the 3# acid liquor circulation tank. The influence factor of the carrying-out quantity of the 3# wringing roller is removed, namely the carrying-out quantity of the 2# wringing roller influences the liquid level of the 3# acid liquor circulation tank.
2. The amount of the product taken out per unit area and the squeezing effect. The amount of strip taken out per unit time is divided by the area of the strip passing through the squeeze roll per unit time, and the amount of strip taken out per unit area (ml/m)2) This is a criterion for evaluating the wringing effect. The smaller the amount of the discharged material per unit area is, the better the squeezing effect is; the larger the amount of the discharged material per unit area, the squeezing effect is shownThe worse. The automatic detection of the state of the squeeze roll means that the amount of the band passing through the squeeze roll per unit area is calculated by a computer under the above conditions.
And detecting conditions of the No. 1 drying roller and the No. 2 drying roller.
1. The PH value of the No. 1 rinsing tank is more than or equal to 0,
namely, the carrying-out quantity per unit area of the 3# drying roller is 40ml/m2. After the strip steel is discharged from the No. 3 pickling tank, the strip steel is rinsed in 4 sections, and the No. 1 rinsing tank is the first rinsing tank.
2. The diversion mode selects 'flow control'.
Detection method for No. four, No. 1 drying roller and No. 2 drying roller
1. The computer memorizes the initial liquid levels of the 1# acid liquor circulating tank and the 3# acid liquor circulating tank and the time difference liquid level after 1 hour.
2. Calculating the liquid level difference of the 1# acid liquid circulation tank by using a computer: initial level-time difference level.
3. The computer calculates the liquid level difference of the 3# acid liquor circulation tank as the time difference liquid level + (hour carrying amount of the 3# wringing roller divided by the tank volume) -the initial liquid level. The hour carrying amount of the 3# wringing roller is divided by the tank volume (the carrying amount is changed into the percentage of the reduction amount of the liquid level, and the number is equal to the influence of the carrying amount of the 3# wringing roller, so that the influence of the carrying amount of the 2# wringing roller on the liquid level change of the 3# acid liquor circulation tank is only considered.
4. The hour take-up amount of the No. 1 squeezing roller is equal to the liquid level difference of the No. 1 acid liquor circulation tank multiplied by the tank volume.
5. The hour take-up amount of the No. 2 squeezing roller is equal to the difference between the liquid levels of the No. 3 acid liquor circulation tank and the volume of the tank.
6. Hourly take-off of 3# squeeze roll by strip area x unit area (40 ml/m) per hour2)。
7. The unit area take-up of the No. 1 wringing roller is equal to the hour take-up of the No. 1 wringing roller divided by hour to pass through the area of the strip.
8. The unit area take-up of the 2# wringing roller is equal to the hour take-up of the 2# wringing roller divided by hour to pass through the area of the strip.
9. And comparing the unit area carrying amount standard by the computer, and prompting whether to replace.
Further description of example 1:
unit parameter
1. Each circulation tank has a volume of 40m3. The level measurement of the recycle tank is accurate to 1%.
2. The squeezing standards of the No. 1 squeezing roller and the No. 2 squeezing roller are as follows: amount taken out per unit area of 100ml/m2。
3. Squeezing standard of No. 3 squeezing roller: carry-over amount per unit area of 40ml/m2。
Second, operating parameters
1. A flow guide mode: and controlling the flow.
2. The PH value of the rinsing water of the No. 1 rinsing tank is more than or equal to 0, namely the unit area carrying-out quantity of the No. 3 wringing roller is ensured to be 40ml/m2。
3. The computer memorizes the initial liquid level time 9 points of the circulating tank; the time difference is 10 liquid level time.
4. The initial liquid level of the 1# circulation tank is 55%; the time difference liquid level was 36%. The initial liquid level of the 3# circulation tank is 53%; the time difference level was 54%.
5. Speed of 20 minutes of strip steel from 9 to 9 points: 150 m/min; width of the strip steel: 1.65 m.
6. Strip steel speed of 9 points, 20 minutes and 10 points: 170 m/min; width of the strip steel: 1.25 m.
And thirdly, the area of the strip steel passing through the points 9-10 is smaller than the area of the strip steel passing through the wringing roller (the upper surface and the lower surface of the strip steel are 2).
1. The area of the strip steel passing through the 9-20 points is 150m/min multiplied by 1.65m multiplied by 20min multiplied by 2 is 9900m2。
2. The area of the strip steel passing through the 9 points, 20 minutes and 10 points is 170m/min multiplied by 1.25m multiplied by 40min multiplied by 2 is 17000m2。
3. Area of strip steel passing through the small-sized steel strip is 9900m2+17000m2＝26900m2。
Hourly discharge amount of No. four and No. 1 drying roller
1. The liquid level difference of the No. 1 acid liquor circulating tank is as follows: initial level-time difference level 55% -36% ═ 19%.
2. Hourly take-up of No. 1 wringing roller 19%. times.40 m3＝7.6m3。
Hourly discharge amount of No. five and No. 3 drying rollers
The small take-up amount of the 3# drying roll is 26900m which is the area of the strip passing through the small roll and the unit area take-up amount of the 3# drying roll2×40ml/m2＝1.076m3。
Hour take-off of No. six or 2 drying roller
1. The liquid level difference of the 3# acid liquor circulation tank is equal to the time difference liquid level + (the hour carrying amount of the 3# wringing roller divided by the tank volume) -the initial liquid level is equal to 54% + (1.076 m)3÷40m3)－53％＝3.69％。
2. The hourly take-off of the 2# drying roller is equal to the liquid level difference of the 3# acid liquor circulation tank multiplied by the tank volume is equal to 3.69 percent multiplied by 40m3＝1.476m3。
Carrying-out quantity per unit area of seven, 1# drying roller
Area of strip passing through 1# wringing roller when hourly take-up is divided by hour is 7.6m3÷26900m2＝282.5ml/m2。
Beyond the standard, the computer prompts for replacement. Indicating that the rubber layer of the wringing roller is seriously damaged.
Carrying-out quantity per unit area of eight and 2# drying roller
The unit area take-up of 2# drying roll is the hour take-up of 2# drying roll divided by the area of strip passing through the hour is 1.476m3÷26900m2＝55ml/m2。
Meets the standard and does not need to be replaced.
Example 1 table comparing to prior art:
| method/compare item | Detection mode | Replacement standard | Acid liquor control |
| Prior Art | On-site cover opening | According to the time | Low speed and low efficiency |
| Example 1 | System automation | According to the standard | High speed and high efficiency |
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. The utility model provides an automatic detection mechanism of wringing roller between descaling bath which characterized in that includes: the No. 1 wringing roller (1), the No. 2 wringing roller (2), the No. 3 wringing roller (3), the No. 1 pickling tank (4), the No. 2 pickling tank (5), the No. 3 pickling tank (6), the No. 1 acid liquor circulating tank (7), the No. 2 acid liquor circulating tank (8), the No. 3 acid liquor circulating tank (9) and the No. 1 rinsing tank (10), the top of each pickling tank is provided with an acid tank cover, the two sides of the No. 1 pickling tank (4) are provided with a No. 1 overflow tank and a No. 2 overflow tank, the two sides of the No. 2 pickling tank (5) are provided with a No. 3 overflow tank and a No. 4 overflow tank, the two sides of the No. 3 pickling tank (6) are provided with a No. 5 overflow tank and a No. 6 overflow tank, the No. 2 overflow tank and the No. 3 overflow tank are adjacently arranged through an arranged isolation wall, the No. 4 overflow tank and the No. 5 overflow tank are adjacently arranged through an isolation wall, the No. 6 is adjacently arranged with the No. 1 rinsing tank (10), the No. 1 drying roller (1) is arranged at the top of the first partition wall, the No. 2 drying roller (2) is arranged at the top of the second partition wall, and the No. 3 drying roller (3) is arranged in the No. 6 overflow groove;
surrounding and blocking stones are arranged on two sides of each pickling tank, and overflow of each pickling tank overflows the surrounding and blocking stones and flows into overflow grooves on two sides respectively; introducing acid liquor after pickling the strip steel in each pickling tank and acid liquor in overflow tanks at two sides into corresponding acid liquor circulating tanks;
the 1# acid liquor circulating tank (7) is connected with the 1# pickling tank (4) through a first pipeline and a first circulating pump (P1) and a first heater which are arranged on the first pipeline, the 2# acid liquor circulating tank (8) is connected with the 2# pickling tank (5) through a second pipeline and a second circulating pump (P2) and a second heater which are arranged on the second pipeline, and the 3# acid liquor circulating tank (9) is connected with the 3# pickling tank (6) through a third pipeline and a third circulating pump (P3) and a third heater which are arranged on the third pipeline; the 1# acid liquor circulation tank (7), the 2# acid liquor circulation tank (8) and the 3# acid liquor circulation tank (9) are respectively connected with a first indication liquid level controller (LIC1), a second indication liquid level controller (LIC2) and a third indication liquid level controller (LIC 3);
inputting fresh acid into a No. 3 acid liquor circulating tank (9), and connecting a first flow indicator (FIC1) to a pipeline for conveying the fresh acid;
a pipeline three-way connection outlet pipeline four of an outlet of the circulating pump three (P3) is connected into the 2# acid liquor circulating tank (8), and a control valve one (V1) is connected to the pipeline four in series, so that part of the acid liquor in the 3# acid liquor circulating tank (9) is separated and conveyed to the 2# acid liquor circulating tank (8); a second flow indicator (FIC2) is also arranged on the fourth pipeline and is used for controlling the first control valve (V1);
a pipeline II at the outlet of the circulating pump II (P2) is connected with a discharge pipeline V, the pipeline V is connected with the 1# acid liquor circulating tank (7), the pipeline V is connected with a control valve II (V2) in series, and part of the acid liquor in the 2# acid liquor circulating tank (8) is separated and conveyed to the 1# acid liquor circulating tank (7); a third flow indicator (FIC3) is also arranged on the fifth pipeline and is used for controlling a second control valve (V2);
the No. 1 acid liquor circulating tank (7) is also connected with a pipeline six, and a circulating pump four is arranged on the pipeline six and used for outputting waste acid; a flow indicator IV (FIC4) is also arranged on the pipeline IV and is used for controlling the circulating pump IV;
the first indicating liquid level controller (LIC1), the second indicating liquid level controller (LIC2), the third indicating liquid level controller (LIC3), the first flow indicator (FIC1), the second flow indicator (FIC2), the third flow indicator (FIC3), the fourth flow indicator (FIC4), the first control valve (V1) and the second control valve (V2) are all electrically connected with the computer.
2. The automatic detection mechanism for the wiping roll between pickling tanks as claimed in claim 1, wherein the volume of each acid liquor circulation tank is 40m3The level measurement is accurate to 1%.
3. The automatic detection mechanism for the squeezing roller between pickling tanks as claimed in claim 1, wherein the pH value of the No. 1 rinsing tank (10) is not less than 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122178102.0U CN215865787U (en) | 2021-09-09 | 2021-09-09 | Automatic detection mechanism for squeezing roller between pickling tanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122178102.0U CN215865787U (en) | 2021-09-09 | 2021-09-09 | Automatic detection mechanism for squeezing roller between pickling tanks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215865787U true CN215865787U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122178102.0U Active CN215865787U (en) | 2021-09-09 | 2021-09-09 | Automatic detection mechanism for squeezing roller between pickling tanks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215865787U (en) |
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2021
- 2021-09-09 CN CN202122178102.0U patent/CN215865787U/en active Active
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