CN108620439A - It is a kind of to solve process and equipment of the valve snail with circle property difference - Google Patents
It is a kind of to solve process and equipment of the valve snail with circle property difference Download PDFInfo
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- CN108620439A CN108620439A CN201810557873.0A CN201810557873A CN108620439A CN 108620439 A CN108620439 A CN 108620439A CN 201810557873 A CN201810557873 A CN 201810557873A CN 108620439 A CN108620439 A CN 108620439A
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- water cooling
- water tank
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- 241000237858 Gastropoda Species 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 238000005096 rolling process Methods 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 239000000498 cooling water Substances 0.000 claims abstract description 28
- 238000000889 atomisation Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 28
- 238000007906 compression Methods 0.000 claims description 28
- 239000007921 spray Substances 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 7
- 235000019628 coolness Nutrition 0.000 claims description 3
- 238000009692 water atomization Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000011218 segmentation Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 102000010637 Aquaporins Human genes 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 208000012886 Vertigo Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0281—Cleaning devices removing liquids removing coolants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The present invention relates to steel rolling processing equipment field more particularly to a kind of processes solving the same circle property difference of valve snail comprising following steps：The first step, wire rod, which enters after the pre- finish rolling of pre-finishing mill in pre- finish rolling Water cooling water tank, carries out atomization Water cooling, and temperature drops between 980 DEG C 1000 DEG C；Second step, wire rod, which enters after finishing mill finish rolling in finish rolling Water cooling water tank, carries out atomization Water cooling, and temperature drops between 900 DEG C 920 DEG C；Third walks, and pinch roller is entered Laying head by wire rod；4th step, wire rod through Laying head drops into conveying speed, and gradually valve snail is delivered in collecting vessel and collects on increased multisection type chain rollgang, while being carried out to wire rod by wind turbine below rollgang air-cooled.Process provided by the invention and apparatus structure are simple and convenient to operate, cooling is uniform, valve snail is the same as circle property great question and stability of enhancing product performance.
Description
Technical field
The present invention relates to steel rolling processing equipment field more particularly to a kind of process solving the same circle property difference of valve snail and set
It is standby.
Background technology
For steel rolling mill's high-speed rod since pre- finish rolling and finish rolling use Water cooling, rolled piece inhomogeneous cooling is even, causes rolled piece each
The position temperature difference is larger, groove and guide groove each position coefficient of thermal expansion of uneven wear and rolled piece differs, and influences product size
Precision, when wire rod becomes by pre- finish rolling and finish rolling through Laying head after coiled configuration drops on cold scattering roller-way, valve snail both sides heap
Product density larger cooling velocity is slow, be easy to cause that local grain is coarse, and properties of product reduce, intermediate relatively to disperse, cooling velocity
Comparatively fast, the phenomenon that easy ting produce abnormal structure and the reduction of product plasticity, and since general cold scattering roller-way uses Coupled motion, speed
Spend identical, the heat dissipation of temperature height is slow at overlapped points, and since air blower is rectangular, valve snail lap-joint and centre position air quantity
It is identical, keep lap-joint's slow cooling during rolling of cooling very fast, causes performance difference larger；
Invention content
Technical problem to be solved by the invention is to provide simple in structure, easy to operate, cooling is uniform, valve snail is the same as circle
Property great question and stability of enhancing product performance a kind of solution valve snail with circle property difference process equipment.
The present invention is to be achieved by the following technical programs：
It is a kind of to solve process of the valve snail with circle property difference comprising following steps：
The first step, wire rod, which enters after the pre- finish rolling of pre-finishing mill in pre- finish rolling Water cooling water tank be atomized, wears water cooling
But, temperature drops between 980 DEG C -1000 DEG C；
Second step, wire rod, which enters after finishing mill finish rolling in finish rolling Water cooling water tank, carries out atomization Water cooling, temperature
It drops between 900 DEG C -920 DEG C；
Third walks, and pinch roller is entered Laying head by wire rod；
4th step, wire rod through Laying head drops into conveying speed, and gradually valve snail is defeated on increased multisection type chain rollgang
It send to collecting in collecting vessel, while by wind turbine wire rod is carried out below rollgang air-cooled.
Further, the roller table speed of multisection type chain rollgang is respectively：First segment 0.6m/s, second segment 0.65m/s,
Third section 0.75m/s, the 4th section of 0.85m/s, the 5th section of 0.95m/s, the 6th section of 1.05m/s, the 7th section of 1.16m/
s。
Further, the pre- finish rolling Water cooling water tank is two-stage cooling, and wire rod is after two-part is atomized Water cooling
It is reversely blown with reverse compression air nozzle again.
Further, the finish rolling Water cooling water tank cools down for four-part form, and wire rod is after two sections are atomized Water cooling with anti-
It is reversely blown to compressed-air atomizer, is reversely sprayed with reverse compression air nozzle again after then carrying out two sections of atomization Water coolings again
It blows.
It is a kind of to solve process equipment of the valve snail with circle property difference comprising the pre-finishing mill that sets gradually, pre- finish rolling wear water tank,
Finishing mill, finish rolling wear water tank, pinch roller, Laying head, rollgang and collecting vessel, and water tank is worn in the pre- finish rolling and water tank is worn in finish rolling
It is inside equipped with and wears water conduit and set on the reverse compression air nozzle for wearing water conduit front end, the water conduit of wearing is equipped with Water cooling
Water inlet Water cooling water outlet and the Water cooling air inlet being opened in front of Water cooling water inlet, the Water cooling into
Gas port, which is passed through high pressure gas, makes to wear cooling water atomization in water pipe, and the rollgang is the multisection type that conveying speed gradually increases
Chain rollgang, institute's chain, which is stated, is equipped with wind turbine below rollgang, and wind turbine is equipped with cover board, the middle part edge of the cover board
Cover board extending direction uniformly offers multiple ventilation openings, each ventilation opening along cover board width direction from centre to both sides by
Gradually widen.
Further, reverse compression air nozzle circumferential direction is equipped with multiple water spray channels.
Further, water spray channel and the angle of reverse compression air nozzle center line are 45 °.
Further, it is two that water tank is worn in the pre- finish rolling, and it is four that water tank is worn in finish rolling, and the end of water tank is worn in two pre- finish rolling
One reverse compression air nozzle is installed, each two finish rolling wears water tank end and installs a reverse compression air nozzle.
Further, the multisection type chain rollgang is seven sections.
Beneficial effects of the present invention
It is a kind of to solve valve snail with the process and equipment of circle property difference, it is cold to be all made of quick break after pre- finish rolling and finish rolling
But, cooling rolled piece can be made uniform, ensure that rolled piece is uniform into temperature when Laying head, make laying temperature control 900-920 DEG C it
Between, it solves the problems, such as to cause product size low precision, wire rod to fall on conveying speed through Laying head and be gradually increased due to non-uniform temperature
Multistage rollgang on, and it is air-cooled by wind turbine simultaneously, make the temperature difference≤20 between wire rod valve snail overlapped points and intermediate valve snail
DEG C, the overlapped points of reinforcing bar can be made to pull open as far as possible, reduce bulk density, improve cooling uniformity, and at the same time with wind turbine into
Sector-style is cold, and it is to be gradually widened from centre to both sides along cover board width direction to make the opening shape of the cover board of wind turbine, can gradually be added
Big both sides air quantity makes both sides valve snail lap-joint and centre position air quantity difference, accelerates lap-joint's cooling velocity, wire rod is made to cool down
Evenly, ensure overlapped points and the intermediate valve snail temperature difference≤20 DEG C, further solve problem of the valve snail with circle property amount difference.
Reverse compression air nozzle circumferential direction is equipped with multiple water spray channels, water spray channel and reverse compression air nozzle center line
Angle be 45 °, the moisture of wire surface can be blown off, prevent stress concentration phenomenon, be further ensured that product quality.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is this wind turbine and rollgang main structure diagram；
Fig. 3 is wind turbine cover board overlooking structure diagram；
Fig. 4 is to wear water conduit structural schematic diagram；
Fig. 5 is reverse compression air nozzle structural schematic diagram；
Water tank, 3. finishing mills are worn in 1. pre-finishing mill in figure, 2. pre- finish rolling, and water tank, 5. pinch rollers, 6. spinnings are worn in 4. finish rolling
Machine, 7. rollgangs, 8. wind turbines, 9. collecting vessels, 10. cover boards, 11. ventilation openings, 12. Water cooling water outlets, 13., which wear water, leads
Pipe, 14. Water cooling water inlets, 15. Water cooling air inlets, 16. reverse compression air nozzles, 17. water spray channels.
Specific implementation mode
It is a kind of to solve process of the valve snail with circle property difference comprising following steps：
The first step, wire rod, which enters after the pre- finish rolling of pre-finishing mill in pre- finish rolling Water cooling water tank be atomized, wears water cooling
But, temperature drops between 980 DEG C -1000 DEG C；
Second step, wire rod, which enters after finishing mill finish rolling in finish rolling Water cooling water tank, carries out atomization Water cooling, temperature
It drops between 900 DEG C -920 DEG C；
Third walks, and pinch roller is entered Laying head by wire rod；
4th step, wire rod through Laying head drops into conveying speed, and gradually valve snail is defeated on increased multisection type chain rollgang
It send to collecting in collecting vessel, while by wind turbine wire rod is carried out below rollgang air-cooled.
Further, the roller table speed of multisection type chain rollgang is respectively：First segment 0.6m/s, second segment 0.65m/s,
Third section 0.75m/s, the 4th section of 0.85m/s, the 5th section of 0.95m/s, the 6th section of 1.05m/s, the 7th section of 1.16m/
s。
Further, the pre- finish rolling Water cooling water tank is two-stage cooling, and wire rod is after two-part is atomized Water cooling
It is reversely blown with reverse compression air nozzle again.
Further, the finish rolling Water cooling water tank cools down for four-part form, and wire rod is after two sections are atomized Water cooling with anti-
It is reversely blown to compressed-air atomizer, is reversely sprayed with reverse compression air nozzle again after then carrying out two sections of atomization Water coolings again
It blows.
It is a kind of to solve process equipment of the valve snail with circle property difference comprising water tank is worn in the pre-finishing mill 1 that sets gradually, pre- finish rolling
2, water tank 4, pinch roller 5, Laying head 6, rollgang 7 and collecting vessel 9 are worn in finishing mill 3, finish rolling, and water tank and essence are worn in the pre- finish rolling
It rolls to wear to be equipped in water tank and wears water conduit 13 and set on the reverse compression air nozzle 16 for wearing water conduit front end, it is described to wear water conduit
Equipped with Water cooling air inlet Water cooling water inlet 14 Water cooling water outlet 12 and be opened in front of Water cooling water inlet
Mouthfuls 15, the Water cooling air inlet, which is passed through high pressure gas, makes to wear cooling water atomization in water pipe, and the rollgang is conveying
The multisection type chain rollgang that speed gradually increases, institute's chain, which is stated, is equipped with wind turbine 8 below rollgang, wind turbine is equipped with
The middle part of cover board 10, the cover board uniformly offers multiple ventilation openings 11 along cover board extending direction, each ventilation opening edge
Cover board width direction is gradually widened from centre to both sides.
Further, reverse compression air nozzle circumferential direction is equipped with multiple water spray channels 17.
Further, water spray channel and the angle of reverse compression air nozzle center line are 45 °.
Further, it is two that water tank is worn in the pre- finish rolling, and it is four that water tank is worn in finish rolling, and the end of water tank is worn in two pre- finish rolling
One reverse compression air nozzle is installed, each two finish rolling wears water tank end and installs a reverse compression air nozzle.
Further, the multisection type chain rollgang is seven sections.
Since a kind of solution valve snail is with the process and equipment of circle property difference, quick break is all made of after pre- finish rolling and finish rolling
It is cooling, cooling rolled piece can be made uniform, ensure that rolled piece is uniform into temperature when Laying head, make laying temperature control at 900-920 DEG C
Between, it solves the problems, such as to cause product size low precision, wire rod to fall on conveying speed through Laying head and gradually add due to non-uniform temperature
On big multistage rollgang, and air-cooled by wind turbine simultaneously, make the temperature difference between wire rod valve snail overlapped points and intermediate valve snail≤
20 DEG C, the overlapped points of reinforcing bar can be made to pull open as far as possible, reduce bulk density, improve cooling uniformity, and at the same time using wind turbine
Carry out it is air-cooled, make the cover board of wind turbine opening shape be gradually widened from centre to both sides along cover board width direction, can be gradual
Both sides air quantity is increased, makes both sides valve snail lap-joint and centre position air quantity difference, accelerates lap-joint's cooling velocity, wire rod is made to cool down
Evenly, ensure overlapped points and the intermediate valve snail temperature difference≤20 DEG C, further solve problem of the valve snail with circle property amount difference.
Reverse compression air nozzle circumferential direction is equipped with multiple water spray channels, water spray channel and reverse compression air nozzle center line
Angle be 45 °, the moisture of wire surface can be blown off, prevent stress concentration phenomenon, be further ensured that product quality.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of solving process of the valve snail with circle property difference, which is characterized in that include the following steps：
The first step, wire rod, which enters after the pre- finish rolling of pre-finishing mill in pre- finish rolling Water cooling water tank, carries out atomization Water cooling, temperature
Degree drops between 980 DEG C -1000 DEG C；
Second step, wire rod, which enters after finishing mill finish rolling in finish rolling Water cooling water tank, carries out atomization Water cooling, and temperature drops to
Between 900 DEG C -920 DEG C；
Third walks, and pinch roller is entered Laying head by wire rod；
4th step, wire rod through Laying head drops into conveying speed, and gradually valve snail is delivered on increased multisection type chain rollgang
It is collected in collecting vessel, while air-cooled to wire rod progress by wind turbine below rollgang.
2. a kind of process solving the same circle property difference of valve snail according to claim 1, which is characterized in that multisection type chain
The roller table speed of rollgang is respectively：First segment 0.6m/s, second segment 0.65m/s, third section 0.75m/s, the 4th section
0.85m/s, the 5th section of 0.95m/s, the 6th section of 1.05m/s, the 7th section of 1.16m/s.
3. a kind of process solving the same circle property difference of valve snail according to claim 1 or 2, which is characterized in that described pre-
Finish rolling Water cooling water tank is two-stage cooling, and wire rod uses reverse compression air nozzle anti-again after two-part is atomized Water cooling
To injection.
4. a kind of process solving the same circle property difference of valve snail according to claim 1 or 2, which is characterized in that the essence
It rolls Water cooling water tank to cool down for four-part form, wire rod is reversely sprayed after two sections are atomized Water cooling with reverse compression air nozzle
It blows, is reversely blown with reverse compression air nozzle again after then carrying out two sections of atomization Water coolings again.
5. it is a kind of solve valve snail with circle property difference process equipment, which is characterized in that including set gradually pre-finishing mill, pre- finish rolling
Wear water tank, water tank, pinch roller, Laying head, rollgang and collecting vessel are worn in finishing mill, finish rolling, water tank and essence are worn in the pre- finish rolling
It rolls to wear to be equipped in water tank and wears water conduit and set on the reverse compression air nozzle for wearing water conduit front end, the water conduit of wearing is equipped with
Water cooling water inlet Water cooling water outlet and the Water cooling air inlet being opened in front of Water cooling water inlet, it is described to wear
Water cooling air inlet, which is passed through high pressure gas, makes to wear cooling water atomization in water pipe, and the rollgang gradually increases for conveying speed
Multisection type chain rollgang, institute's chain, which is stated, is equipped with wind turbine below rollgang, wind turbine be equipped with cover board, the cover board
Middle part uniformly offer multiple ventilation openings along cover board extending direction, each ventilation opening is along cover board width direction from centre
It is gradually widened to both sides.
6. a kind of process equipment solving the same circle property difference of valve snail according to claim 5, which is characterized in that reverse compression is empty
Gas jets circumferential direction is equipped with multiple water spray channels.
7. it is according to claim 6 it is a kind of solve valve snail with circle property difference process equipment, which is characterized in that water spray channel with
The angle of reverse compression air nozzle center line is 45 °.
8. a kind of process equipment solving the same circle property difference of valve snail according to claim 5, which is characterized in that the pre- finish rolling
It is two to wear water tank, and it is four that water tank is worn in finish rolling, and a reverse compression air nozzle is installed in the end that water tank is worn in two pre- finish rolling,
Each two finish rolling wears water tank end and installs a reverse compression air nozzle.
9. according to a kind of process equipment solving the same circle property difference of valve snail according to claim 5, which is characterized in that described more
Segmentation chain rollgang is seven sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557873.0A CN108620439A (en) | 2018-06-01 | 2018-06-01 | It is a kind of to solve process and equipment of the valve snail with circle property difference |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557873.0A CN108620439A (en) | 2018-06-01 | 2018-06-01 | It is a kind of to solve process and equipment of the valve snail with circle property difference |
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|---|---|
| CN108620439A true CN108620439A (en) | 2018-10-09 |
Family
ID=63691008
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|---|---|---|---|
| CN201810557873.0A Pending CN108620439A (en) | 2018-06-01 | 2018-06-01 | It is a kind of to solve process and equipment of the valve snail with circle property difference |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731911A (en) * | 2019-01-30 | 2019-05-10 | 福建泉州闽光钢铁有限责任公司 | A method of improving Screwbar muscle head performance |
| CN109759459A (en) * | 2019-02-27 | 2019-05-17 | 南京钢铁股份有限公司 | A kind of control method of slow cooling steel wire rod ring |
| CN110125174A (en) * | 2019-03-28 | 2019-08-16 | 盐城市联鑫钢铁有限公司 | A kind of HRB400E-F valve snail fine grain rolling mill practice method |
| CN110560490A (en) * | 2019-08-26 | 2019-12-13 | 中冶赛迪工程技术股份有限公司 | process method for controlling temperature of wire rod and inhibiting surface red rust |
| CN111389940A (en) * | 2020-04-14 | 2020-07-10 | 新兴铸管股份有限公司 | Water cooling air seal device |
| CN111922101A (en) * | 2020-08-20 | 2020-11-13 | 中天钢铁集团有限公司 | High-speed wire packet type arranging equipment and control method thereof |
| CN114836608A (en) * | 2022-04-26 | 2022-08-02 | 包头钢铁（集团）有限责任公司 | Production method for reducing performance same-circle difference of HRB400E disc spiral steel bar |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731911A (en) * | 2019-01-30 | 2019-05-10 | 福建泉州闽光钢铁有限责任公司 | A method of improving Screwbar muscle head performance |
| CN109731911B (en) * | 2019-01-30 | 2020-07-17 | 福建泉州闽光钢铁有限责任公司 | Method for improving performance of head of twisted steel wire rod |
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| CN110125174A (en) * | 2019-03-28 | 2019-08-16 | 盐城市联鑫钢铁有限公司 | A kind of HRB400E-F valve snail fine grain rolling mill practice method |
| CN110560490A (en) * | 2019-08-26 | 2019-12-13 | 中冶赛迪工程技术股份有限公司 | process method for controlling temperature of wire rod and inhibiting surface red rust |
| CN111389940A (en) * | 2020-04-14 | 2020-07-10 | 新兴铸管股份有限公司 | Water cooling air seal device |
| CN111922101A (en) * | 2020-08-20 | 2020-11-13 | 中天钢铁集团有限公司 | High-speed wire packet type arranging equipment and control method thereof |
| CN111922101B (en) * | 2020-08-20 | 2024-05-28 | 中天钢铁集团有限公司 | High-speed coil type normalization equipment and control method thereof |
| CN114836608A (en) * | 2022-04-26 | 2022-08-02 | 包头钢铁（集团）有限责任公司 | Production method for reducing performance same-circle difference of HRB400E disc spiral steel bar |
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Application publication date: 20181009 |