CN108746210A - A kind of cooling process method and its device of plug - Google Patents
A kind of cooling process method and its device of plug Download PDFInfo
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- CN108746210A CN108746210A CN201810765560.4A CN201810765560A CN108746210A CN 108746210 A CN108746210 A CN 108746210A CN 201810765560 A CN201810765560 A CN 201810765560A CN 108746210 A CN108746210 A CN 108746210A
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- plug
- cooling
- temperature
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- hygrosensor
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- 238000001816 cooling Methods 0.000 title claims abstract description 175
- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000000443 aerosol Substances 0.000 claims abstract description 114
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 10
- 239000003595 mist Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
- B21B25/04—Cooling or lubricating mandrels during operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The present invention relates to the cooling technology fields of plug, more particularly, to the cooling process method and its device of a kind of plug.The cooling process method of the plug, includes the following steps：Aerosol cooling is carried out to plug；Wherein, the temperature T for measuring plug is segmented plug according to temperature T the aerosol amount of regulation and control aerosol cooling in an axial direction.Described device includes hollow box body, cooling ring arranged in parallel, air pipeline, waterpipe, hygrosensor and controller.Actual temperature of the present invention according to plug in an axial direction, according to the actual temperature of difference, the aerosol cooling of different aerosol amounts is carried out to plug, so that the accurate cooling to plug axial temperature, is effectively improved the problem of the product wall unevenness caused by plug axial temperature unevenness and plug abrasion unevenness during continuous rolling.
Description
Technical field
The present invention relates to the cooling technology fields of plug, more particularly, to the cooling process method and its dress of a kind of plug
It sets.
Background technology
Plug be Push bench pipe mill participate in pipe deformation important tool and mould, consumption is larger, and the quality of plug and
Cost is directly related to the quality and benefits of steel pipe's production.Wherein, in process of production, the temperature uniformity of plug directly affects
To the longitudinal evenness of wall thickness and plug of the steel pipe even wear of itself.For example, mandrel surface non-uniform temperature, leads to steel pipe
Inner wall temperature is uneven, and metal plastic deformation sliding is inconsistent, causes local wall thickness partially thin, causes steel tube defect.
Plug uses branched online recycling, is influenced every time by push pipe mechanistic nature after rolling, leads to plug
Temperature is presented in the axial direction from head to tail portion from high to low inhomogeneities.And in the prior art, it is only hit and is produced by fan
Raw water mist fixed point cools down the head of plug, and it is insufficient that there are cooling capacities, and cooling effect poor controllability, can not achieve
The shortcomings of cooling in length range.
In view of this, special propose the present invention.
Invention content
The first object of the present invention is to provide a kind of cooling process method of plug, and the process can be to plug
Precisely cooled down using the plug of length range, and can realize the uniformity that plug axially and radially cools down, improves plug
Temperature uniformity after cooling efficiently solves the problems, such as that prior art thickness of steel pipe caused by plug temperature unevenness is uneven.
The second object of the present invention is to provide a kind of cooling device of plug, and described device is compared to conventional apparatus, place
It is good to manage obtained plug cooling uniformity, so that the function admirable for the steel pipe being prepared.
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
A kind of cooling process method of plug, includes the following steps：Aerosol cooling is carried out to plug；
Wherein, the temperature T for measuring plug is segmented plug according to temperature T the aerosol amount of regulation and control aerosol cooling in an axial direction.
In the prior art, the water mist fixed point only generated by fan strike cools down the head of plug, and there are coolings
Scarce capacity, and cooling effect poor controllability, the shortcomings of can not achieve the cooling in length range.
The cooling process method of the plug of the present invention, according to the actual temperature of plug in an axial direction, according to the reality of difference
Temperature, the aerosol that different aerosol amounts are carried out to plug cool down, and higher section of plug temperature, the nozzle quantity of unlatching is more, corresponding
Aerosol amount is relatively large, and lower section of plug temperature, and the nozzle quantity of unlatching is few or is not turned on, and aerosol amount is relatively small, with
So that the accurate cooling to plug axial temperature, is effectively improved during continuous rolling caused by plug axial temperature unevenness
The problem of product wall unevenness and plug abrasion unevenness.
Preferably, after carrying out aerosol cooling to plug, the temperature T of plug in an axial direction is measured1If T1More than preset temperature T0,
Aerosol cooling is then carried out again, according to temperature T1It is segmented the aerosol amount of regulation and control aerosol cooling in an axial direction to plug.
Wherein preset temperature T0It can be configured according to follow-up actual demand, such as 100 DEG C, 200 DEG C, 300 DEG C etc..
After an aerosol cools down, the temperature of plug is measured, if the actual temperature measured is mutually fitted with preset temperature
It answers, then completes the cooling of plug, cooled down without continuing；If the actual temperature measured is higher than preset temperature, in an axial direction according to plug
Actual temperature, according to certain aerosol amount requirement, again carry out aerosol cooling precisely to be cooled down to plug.
Preferably, the aerosol, which cools down, includes：Compressed air is mixed into ejection with water, forms aerosol.It is furthermore preferred that described
The pressure of compressed air is 0.5-1MPa.It is further preferred that the compressed air and the volume ratio of water are 1 ﹕ (0.8-1.2),
It is preferred that 1 ﹕ 1.
Preferably, the temperature of the water is 20-40 DEG C.
After above-mentioned aerosol, moisture has been cut into superfine small particle by compressed air, can improve water contact plug
The efficiency of evaporation, so as to be completed in a short time the cooling down to plug.
Preferably, when carrying out aerosol cooling to plug, plug is advanced axially relative.It is furthermore preferred that the speed of the advance is
1-2m/s, preferably 1.2-1.8m/s, more preferably 1.5m/s.
Plug is advanced axially relative, and can be ensure that the uniformity that plug cools down in radial directions, be avoided Local cooling not
Uniformly.
Preferably, the use length of the plug is 5-18m, more preferably 6-17.5m, further preferably 8-15m.
Using the cooling process method of plug of the present invention, can ensure real in length range in entirely using for plug
Now precisely cooling, ensures the uniformity of temperature.
Preferably, after completing plug cooling, the temperature T of plug is measured2, with preset temperature T0Compare, according to comparison result tune
Whole aerosol amount.If it is furthermore preferred that T2=T0, aerosol cooling is carried out by original aerosol amount；If T2> T0, increase aerosol amount；If T2<
T0, reduce aerosol amount.
The present invention carries out temperature measuring to completing cooling plug, according to plug after the cooling period, enter the reality before soaking pit
Temperature by this temperature feedback and is corrected, and according to feedback result, the size of aerosol amount is adjusted, so that the aerosol type of cooling can be realized
Accurate cooling to plug.
The present invention also provides the device for the cooling process method for implementing the plug, including it is hollow box body, arranged in parallel
Cooling ring, air pipeline, waterpipe, hygrosensor and controller；
The cooling ring is set in hollow box body, and is provided on the inside of hollow box body axial alignment, the cooling ring
Nozzle；The air pipeline and waterpipe are connected to the cooling ring respectively；The hygrosensor is used to measure the temperature of plug
Degree, and be electrically connected with the P controller, by the temperature feedback of measurement to controller；The controller feeds back hygrosensor
Temperature data be compared with preset temperature data, controller according to comparison result regulate and control nozzle opening and closing quantity.
For the cooling device of plug of the present invention compared to traditional device, the plug cooling-down effect handled is smart
Standard, cooling uniformity is good, and plug actual temperature is compared with preset temperature according to controller, and regulation and control nozzle opens quantity,
So as to adjust aerosol amount, to increasing aerosol amount along the higher position of plug axial temperature, to along the lower portion of plug axial temperature
Position reduces aerosol amount, to not cooled down along the position of plug axial direction proper temperature, realizes accurately segmentation regulation and control, is cooled down meeting
While ability, water consumption is reduced as far as possible.Also, water tank is used, plug is cooled down in relatively closed space,
Reduce the influence to ambient enviroment.
Preferably, described device includes at least three hygrosensors, and respectively the first hygrosensor, second temperature are visited
It surveys device and third hygrosensor, first hygrosensor and third hygrosensor is respectively arranged at the two of hollow box body
End, the second temperature detector is set in hollow box body, and positioned at the first hygrosensor and third hygrosensor it
Between.
Preferably, along circumferential uniformly six nozzles of arrangement of cooling ring on the inside of the cooling ring；The nozzle is fan nozzle；
The spray angle of the nozzle is 30 ± 2 °；The distance between the nozzle and plug are 100-115mm.
Compared with prior art, beneficial effects of the present invention are：
(1) cooling process method of plug of the present invention, according to the actual temperature of plug in an axial direction, according to difference
Actual temperature, to plug carry out different aerosol amounts aerosol cool down, higher section of plug temperature, corresponding aerosol amount is relatively
Greatly, lower section of plug temperature, aerosol amount is relatively small, so that the accurate cooling to plug axial temperature, is effectively improved
The problem of the product wall unevenness caused by plug axial temperature unevenness and plug abrasion unevenness during continuous rolling；
(2) cooling process method of the present invention is measured the temperature of plug after an aerosol cools down, if
The actual temperature of measurement is adapted with preset temperature, then completes the cooling of plug, cooled down without continuing；If the actual temperature measured
Higher than preset temperature, according to the actual temperature of plug in an axial direction, according to the requirement of certain aerosol amount, aerosol cooling is carried out again with right
Plug is precisely cooled down；
(3) cooling device of plug of the present invention is compared to traditional device, the plug cooling-down effect handled
Precisely, cooling uniformity is good, and plug actual temperature is compared with preset temperature according to controller, and regulation and control nozzle opens number
Amount, so as to adjust aerosol amount, to increasing aerosol amount along the higher position of plug axial temperature, to lower along plug axial temperature
Position reduces aerosol amount, to not cooled down along the position of plug axial direction proper temperature, realizes and is accurately segmented regulation and control, cold meeting
But while ability, water consumption is reduced as far as possible.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of mandrel cooling system provided in an embodiment of the present invention；
Fig. 2 is the side view in the hollow box body of mandrel cooling system shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the cooling device of comparative example 1.
Reference numeral：
1- hollow box bodies；2- cooling rings；3- air pipelines；
4- waterpipes；5- air compressors；6- water pumps；
The first hygrosensors of 7-；8- second temperature detectors；9- third hygrosensors；
21- nozzles；10- cooling blowers.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with the drawings and specific embodiments, but
Be it will be understood to those of skill in the art that it is following described embodiments are some of the embodiments of the present invention, rather than it is whole
Embodiment is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.Based on the embodiments of the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without making creative work, belongs to guarantor of the present invention
The range of shield.The person that is not specified actual conditions in embodiment, carries out according to conventional conditions or manufacturer's recommended conditions.Agents useful for same
Or production firm person is not specified in instrument, is the conventional products that can be obtained by commercially available purchase.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention provides a kind of cooling process methods of plug, include the following steps：Aerosol cooling is carried out to plug；
Wherein, the temperature T for measuring plug is segmented plug according to temperature T the aerosol amount of regulation and control aerosol cooling in an axial direction.
The cooling process method of the plug of the present invention, according to the actual temperature of plug in an axial direction, according to the reality of difference
Temperature, the aerosol that different aerosol amounts are carried out to plug cool down, and higher section of plug temperature, corresponding aerosol amount is relatively large, and
Lower section of plug temperature, aerosol amount is relatively small, so that the accurate cooling to plug axial temperature, is effectively improved continuous
The problem of the product wall unevenness caused by plug axial temperature unevenness and plug abrasion unevenness in the operation of rolling.
In a preferred embodiment of the invention, after carrying out aerosol cooling to plug, the temperature T of plug in an axial direction is measured1,
If T1More than preset temperature T0, then aerosol cooling is carried out again.
In a preferred embodiment of the invention, the aerosol cooling includes：Compressed air is mixed into ejection with water, is formed
Aerosol.It is furthermore preferred that the pressure of the compressed air is 0.5-1MPa.It is further preferred that the body of the compressed air and water
Product is than being 1 ﹕ (0.8-1.2).
In a preferred embodiment of the invention, the temperature of the water is 20-40 DEG C.
In a preferred embodiment of the invention, when carrying out aerosol cooling to plug, plug is advanced axially relative.It is further excellent
Choosing, the speed of the advance is 1-2m/s, preferably 1.2-1.8m/s, more preferable 1.5m/s.
In an of the invention preferred embodiment, use the length of the plug is 5-18m, more preferably 6-17.5m, into
One step is preferably 8-15m.
In a preferred embodiment of the invention, after completing plug cooling, the temperature T of plug is measured2, with preset temperature T0
Compare, aerosol amount is adjusted according to comparison result.If it is furthermore preferred that T2=T0, aerosol cooling is carried out by original aerosol amount；If T2>
T0, increase aerosol amount；If T2< T0, reduce aerosol amount.
The present invention also provides the device for the cooling process method for implementing the plug, including it is hollow box body, arranged in parallel
Cooling ring, air pipeline, waterpipe, hygrosensor and controller；
The cooling ring is set in hollow box body, and is provided on the inside of hollow box body axial alignment, the cooling ring
Nozzle；The air pipeline and waterpipe are connected to the cooling ring respectively；The hygrosensor is used to measure the temperature of plug
Degree, and be electrically connected with the controller, by the temperature feedback of measurement to controller；The controller feeds back hygrosensor
Temperature data is compared with preset temperature data, and controller regulates and controls the opening and closing quantity of nozzle according to comparison result.
For the cooling device of plug of the present invention compared to traditional device, the plug cooling-down effect handled is smart
Standard, cooling uniformity is good, and plug actual temperature is compared with preset temperature according to controller, and regulation and control nozzle opens quantity,
So as to adjust aerosol amount, to increasing aerosol amount along the higher position of plug axial temperature, to along the lower portion of plug axial temperature
Position reduces aerosol amount, to not cooled down along the position of plug axial direction proper temperature, realizes accurately segmentation regulation and control, is cooled down meeting
While ability, water consumption is reduced as far as possible.Also, water tank is used, plug is cooled down in relatively closed space,
Reduce the influence to ambient enviroment.
In a preferred embodiment of the invention, described device includes at least three hygrosensors, the respectively first temperature
Spend detector, second temperature detector and third hygrosensor, first hygrosensor and third hygrosensor point
It is not set to the both ends of hollow box body, the second temperature detector is set in hollow box body, and is located at the first temperature sensing
Between device and third hygrosensor.
In a preferred embodiment of the invention, along circumferential uniformly six nozzles of arrangement of cooling ring on the inside of the cooling ring；
The nozzle is fan nozzle；The spray angle of the nozzle is 30 ± 2 °；The distance between the nozzle and plug are 100-
115mm。
Fig. 1 is the structural schematic diagram that the embodiment of the present invention provides mandrel cooling system；Fig. 2 is plug cooling shown in FIG. 1
Side view in the hollow box body of device.As shown in Figs. 1-2, mandrel cooling system provided in this embodiment, including hollow box body
1, cooling ring 2 arranged in parallel, air pipeline 3, waterpipe 4, air compressor 5, water pump 6, hygrosensor and controller.
The cooling ring 2 is set in hollow box body 1, and along 1 axial alignment of hollow box body, the axial direction of the cooling ring 2
It is parallel with the axial direction of hollow box body 1.The air pipeline 3 and the waterpipe 4 are connected to the cooling ring 2 respectively, institute
3 other end of air pipeline connection air compressor 5 is stated, compressed air is delivered by air pipeline 3 in cooling ring 2；It is described
4 other end of waterpipe by water pump 6 connect water tank, water pump 6 by waterpipe 4 convey water enter in cooling ring 2, compressed air with
It is sprayed after water mixing and forms water mist.
The inside of the cooling ring 2 is provided with nozzle 21, and the nozzle 21 is towards the ring heart direction of cooling ring 2, compressed air
It is sprayed by nozzle 21 after being mixed with water, ejects water mist to ring heart direction, plug is cooled down.
The hygrosensor is used to measure the temperature of plug, and is electrically connected with the controller, and the temperature of measurement is anti-
It is fed to controller；The temperature data that hygrosensor is fed back is compared by the controller with preset temperature data, controller
Regulate and control the opening and closing quantity of nozzle according to comparison result.In the present embodiment, there are three hygrosensor, the first temperature for described device setting
Degree detector 7 is set to one end of hollow box body 1, and second temperature detector 8 is set to the centre of hollow box body 1, third temperature
Detector 9 is set to the other end of hollow box body 1.Such as, the first hygrosensor 7 is set to before first cooling ring, and second
Hygrosensor 8 is set between the 6th and the 7th cooling ring, third hygrosensor 9 be set to the tenth cooling ring it
Afterwards.The setting of hygrosensor can be adjusted according to factors such as the length of practical plug.
Embodiment 1
The cooling process method of plug described in the present embodiment, steps are as follows：
(1) plug is after dephosphorization, and plug passes through the ring heart of cooling ring 2 in hollow box body 1, along the axial advancement of plug,
The speed of advance is 1-2m/s, measures the temperature T of plug everywhere by the first hygrosensor 7, and hygrosensor will be surveyed
The temperature T of fixed plug feeds back to PLC module, and PLC module is by temperature T and preset temperature T0Be compared, PLC module according to than
Compared with the opening and closing of the nozzle in the cooling ring of result real-time monitoring everywhere, it is cold to be segmented regulation and control aerosol in an axial direction to plug according to temperature T
But aerosol amount, temperature is higher, and aerosol amount is bigger, and the relatively low then aerosol amount of temperature is smaller；At each cooling ring position
The different temperatures T of plug, adjusts the opening and closing of the nozzle in each cooling ring；
(2) after the aerosol cooling in step (1) to be done, everywhere by the measurement of second temperature detector 8 plug
Temperature T1, and the temperature T of the plug of measurement is fed back to PLC module by hygrosensor, and PLC module is by temperature T1With default temperature
Spend T0It is compared, according to the opening and closing of the nozzle in comparison result real-time monitoring cooling ring everywhere, temperature is higher to be opened PLC module
It is bigger to open quantity, aerosol amount is bigger, and temperature is relatively low, and unlatching quantity is smaller, then aerosol amount is smaller, if T1More than preset temperature
T0, then aerosol cooling is carried out again, while plug advances along its axis, the speed of advance is 1-2m/s；If T1Equal to preset temperature
T0, then the nozzle of corresponding position is closed, aerosol amount is 0, is stopped to the aerosol cooling treatment at this；
(3) after the secondary aerosol cooling in step (2) to be done, the plug for completing cooling technique is obtained；Using third temperature
It spends detector 9 and tests the temperature T of plug everywhere2, feed back to PLC module, PLC module is by itself and preset temperature T0Compare, according to than
Relatively result adjusts aerosol amount and is corrected with carrying out appropriate fine tuning to aerosol cooling, if T2=T0, PLC module control is by original aerosol amount
Carry out aerosol cooling；If T2> T0, the aerosol amount of PLC module control increase corresponding position；If T2< T0, PLC module control drop
The aerosol amount of low corresponding position.
Embodiment 2
For being provided with the device of 10 cooling rings 2 arranged in parallel, the first hygrosensor 7 is set to the present embodiment
Before first cooling ring, second temperature detector 8 is set between the 6th and the 7th cooling ring, third hygrosensor
9 are set to after the tenth cooling ring, and 2 inside of the cooling ring is along circumferential uniformly six nozzles 21 of arrangement of cooling ring, the spray
The spray angle of mouth 21 is 30 °, and the distance between the nozzle 21 and plug are 105mm, to use length to be for the plug of 10m
Example, the cooling process method of the plug, steps are as follows：
(1) plug is after dephosphorization, and plug passes through the ring heart of cooling ring 2 in hollow box body 1, along the axial advancement of plug,
The speed of advance is 1.5m/s, and plug temperature T everywhere is measured by the first hygrosensor 7, and the plug is from using length
The temperature of head to tail portion is respectively 0-3m, 600-580 DEG C；3-6m, 580-560 DEG C；6-7m, 560-540 DEG C；7-10m, 540-
520 DEG C, and the temperature T of the plug of measurement is fed back to controller by hygrosensor, and controller is by temperature T and preset temperature
T0=475 ± 5 DEG C are compared, and controller makes according to the opening and closing of the nozzle in comparison result real-time monitoring cooling ring everywhere
For the position that temperature on plug is T, by the nozzle quantity of unlatching, aerosol cooling is carried out to plug；In an axial direction for plug
Different temperatures T, adjust the opening and closing of the nozzle in each cooling ring, aerosol amount adjusted, to be cooled down to plug；For 0-3m
Temperature section, after the first hygrosensor 7 detects the temperature of rod head, plug at the uniform velocity advances in an axial direction, due to 0-3m
Temperature is excessively high, and whole nozzles that first to the 6th cooling ring is opened in delaying time of controller control carry out aerosol cooling drop to plug
The duration of temperature, delay is adjusted according to the forward speed of plug；With the advance of plug, the first hygrosensor 7 detects plug
The temperature of head 3-6m, since temperature is relatively lower than the temperature of 0-3m, second to the 6th cooling is opened in delaying time of controller control
Whole nozzles of ring close the nozzle of first cooling ring, and to carry out aerosol cooling to plug, 3-7m is waited and so on；For
Temperature is close to T0The rod section of temperature, the nozzle unlatching that a cooling ring is only opened in delaying time of controller control cool down；
(2) after the aerosol cooling in step (1) to be done, everywhere by the measurement of second temperature detector 8 plug
Temperature T1, the plug from the temperature for using length header to tail portion be respectively 0-3m, 520-500 DEG C；3-6m, 500-490 DEG C；
6-7m, 490-480 DEG C；7-10m, 480-460 DEG C, and hygrosensor is by the temperature T of the plug of measurement1Feed back to control
Device, controller is by temperature T1With preset temperature T0It is compared, controller is according in comparison result real-time monitoring cooling ring everywhere
Nozzle opening and closing, if T1More than preset temperature T0, then aerosol cooling is carried out again, and gas is adjusted according to the temperature of plug difference
Mist amount, while plug is advanced axially relative, speed 1.5m/s；For the temperature section of 0-3m, when second temperature detector 8 detects
After the temperature of rod head, plug at the uniform velocity advances in an axial direction, and since 0-3m temperature is still relatively excessively high, delaying time of controller control is opened
Whole nozzles of 7th to the tenth cooling ring carry out aerosol to plug and cool, and the duration of delay is fast according to the advance of plug
Degree is adjusted；With the advance of plug, second temperature detector 8 detects the temperature of rod head 3-6m, since temperature is relatively low
In the temperature of 0-3m, delaying time of controller control opens whole nozzles of the 8th to the tenth cooling ring, closes the 7th cooling ring
Nozzle, to carry out aerosol cooling to plug, 3-7m waits and so on；T is equal to or less than for temperature0The rod section of temperature,
The nozzle of all cooling rings is closed in delaying time of controller control, and aerosol amount is 0, stops the cooling to the plug of this section；
(3) after the secondary aerosol cooling in step (2) to be done, the plug for completing cooling technique is obtained；Using third temperature
It spends detector 9 and tests the temperature T of plug everywhere2, the plug from the temperature for using length header to tail portion be respectively 0-3m,
480-474℃；3-6m, 474-472 DEG C；6-7m, 472-469 DEG C；7-10m, 469-465 DEG C, feed back to controller, and controller will
Itself and preset temperature T0Compare, adjust aerosol amount according to comparison result is corrected with carrying out appropriate fine tuning to aerosol cooling, if T2=
T0, controller control is by the progress aerosol cooling of original aerosol amount；If T2> T0, the aerosol of controller control increase corresponding position
Amount；If T2< T0, the aerosol amount of controller control reduction corresponding position.
Comparative example 1
Using traditional cooling blower, cooling mode is carried out to the head of plug with fan strike water mist fixed point, it is cold
But the structural schematic diagram of device is as shown in Figure 3 comprising multiple cooling blowers 10.After plug dephosphorization, the temperature of each section of plug
Respectively：0-3m, 580-540 DEG C；3-6m, 540-520 DEG C；6-7m, 520-500 DEG C；7-10m, 500-410 DEG C；It is placed in cooling
On device, cooling blower 10 is opened, rod head is cooled down.
After being handled plug by above-mentioned cooling means, the temperature of plug is：0-3m, 510-490 DEG C；3-6m,
490-470℃；6-7m, 470-440 DEG C；7-10m, 440-370 DEG C.
Using above-mentioned cooling means, cooling capacity is insufficient, and cooling effect poor controllability, can not achieve in length range
It is uniformly cooling.
The cooling process method of the plug of the present invention, according to the actual temperature of plug in an axial direction, according to the reality of difference
Temperature, the aerosol that different aerosol amounts are carried out to plug cool down, and higher section of plug temperature, corresponding aerosol amount is relatively large, and
Lower section of plug temperature, aerosol amount is relatively small, so that the accurate cooling to plug axial temperature, is effectively improved continuous
The problem of the product wall unevenness caused by plug axial temperature unevenness and plug abrasion unevenness in the operation of rolling.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of cooling process method of plug, which is characterized in that include the following steps：Aerosol cooling is carried out to plug；
Wherein, the temperature T for measuring plug is segmented plug according to temperature T the aerosol amount of regulation and control aerosol cooling in an axial direction.
2. the cooling process method of plug according to claim 1, which is characterized in that after carrying out aerosol cooling to plug,
Measure the temperature T of plug in an axial direction1If T1More than preset temperature T0, then aerosol cooling is carried out again, according to temperature T1To plug
The aerosol amount of the aerosol cooling of segmentation regulation and control in an axial direction.
3. the cooling process method of plug according to claim 1, which is characterized in that after completing plug cooling, measure core
The temperature T of stick2, with preset temperature T0Compare, aerosol amount is adjusted according to comparison result.
4. the cooling process method of plug according to claim 3, which is characterized in that if T2=T0, by original aerosol amount into
Promoting the circulation of qi mist cools down；If T2> T0, increase aerosol amount；If T2< T0, reduce aerosol amount.
5. the cooling process method of plug according to claim 1, which is characterized in that the aerosol, which cools down, includes：It will pressure
Contracting air and mix ejection, formation aerosol.
6. the cooling process method of plug according to claim 5, which is characterized in that the pressure of the compressed air is
0.5-1MPa；
Preferably, the compressed air and the volume ratio of water are 1 ﹕ (0.8-1.2)；
Preferably, the temperature of the water is 20-40 DEG C.
7. the cooling process method of plug according to claim 1, which is characterized in that when carrying out aerosol cooling to plug,
Plug is advanced axially relative；
Preferably, the speed of the advance is 1-2m/s；
It is furthermore preferred that the speed of the advance is 1.2-1.8m/s.
8. the cooling process method of plug according to claim 1, which is characterized in that the use length of the plug is 5-
18m；
Preferably, the use length of the plug is 6-17.5m；
Preferably, the use length of the plug is 8-15m.
9. implementing the device of the cooling process method of claim 1-8 any one of them plugs, which is characterized in that including hollow
Babinet, cooling ring arranged in parallel, air pipeline, waterpipe, hygrosensor and controller；
The cooling ring is set in hollow box body, and is provided with nozzle on the inside of hollow box body axial alignment, the cooling ring；
The air pipeline and waterpipe are connected to the cooling ring respectively；The hygrosensor is used to measure the temperature of plug, and
It is electrically connected with the controller, by the temperature feedback of measurement to controller；The temperature that the controller feeds back hygrosensor
Data are compared with preset temperature data, and controller regulates and controls the opening and closing quantity of nozzle according to comparison result.
10. device according to claim 9, which is characterized in that described device includes at least three hygrosensors, respectively
For the first hygrosensor, second temperature detector and third hygrosensor, first hygrosensor and third temperature
Detector is respectively arranged at the both ends of hollow box body, and the second temperature detector is set in hollow box body, and is located at first
Between hygrosensor and third hygrosensor；
Preferably, along circumferential uniformly six nozzles of arrangement of cooling ring on the inside of the cooling ring；
Preferably, the nozzle is fan nozzle；
Preferably, the spray angle of the nozzle is 30 ± 2 °；
Preferably, the distance between the nozzle and plug are 100-115mm.
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| CN201810765560.4A CN108746210A (en) | 2018-07-12 | 2018-07-12 | A kind of cooling process method and its device of plug |
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| CN201810765560.4A CN108746210A (en) | 2018-07-12 | 2018-07-12 | A kind of cooling process method and its device of plug |
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| CN111151582A (en) * | 2019-12-31 | 2020-05-15 | 太原重工股份有限公司 | Core rod temperature control system and method |
| CN111426205A (en) * | 2020-03-31 | 2020-07-17 | 燕山大学 | Drill steel cooling system and cooling method thereof |
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| JP2003245710A (en) * | 2002-02-20 | 2003-09-02 | Nisshin Steel Co Ltd | Rolling oil removal unit |
| CN102489517A (en) * | 2011-12-13 | 2012-06-13 | 衡阳华菱钢管有限公司 | On-line control method for spraying graphite lubricant to mandrel |
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| CN111426205B (en) * | 2020-03-31 | 2021-03-19 | 燕山大学 | Drill steel cooling system and cooling method thereof |
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