CN203170736U - Hot rolling laminar flow cooling temperature control device - Google Patents
Hot rolling laminar flow cooling temperature control device Download PDFInfo
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- CN203170736U CN203170736U CN 201320118923 CN201320118923U CN203170736U CN 203170736 U CN203170736 U CN 203170736U CN 201320118923 CN201320118923 CN 201320118923 CN 201320118923 U CN201320118923 U CN 201320118923U CN 203170736 U CN203170736 U CN 203170736U
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- control device
- cooling
- temperature
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Abstract
The utility model discloses a hot rolling laminar flow cooling temperature control device comprising a laminar flow cooling device, a PLC control device and a temperature measuring device. The laminar flow cooling device comprises an upper cooling device, a lower cooling device, an air blowing device and a side water spraying device. The temperature measuring device comprises a temperature measurer and a sleeve, wherein the sleeve is arranged on the side wall of a rail between a finishing mill and a coiling machine, an opening of the sleeve faces towards a rail upper steel plate, and the temperature measurer is arranged in the sleeve. A water cooling channel used for temperature reduction of the sleeve is arranged in the side wall, and a water cooling pipe is communicated with the water cooling channel. The hot rolling laminar flow cooling temperature control device is simple in structure, can measure the temperature of the surface of strip steel in a near distance, can accurately control and measure the temperature of the strip steel before coiling, improves mechanical properties of the strip steel, and achieves the aim of improving quality of the strip steel.
Description
Technical field
The utility model belongs to and is used for lubricated, cooling or cleaning technique field in metal rolled, specifically relates to a kind of hot-rolling laminar chilling temperature control device.
Background technology
During hot-strip is produced, the effect relation of laminar flow cooling the quality of hot-rolled product, the hot-strip of thickness 〉=14mm particularly, the weak effect of laminar flow cooling, cause existing that properties percent of pass is on the low side, product cost is high: the cooling velocity of band steel and band steel batch preceding temperature after laminar flow cooling control finish rolling, temperature was low excessively before the band steel batched, the band steel is inner can to form bigger residual stress, make strip coiling difficulty and easy loose winding, owing to there are not enough temperature that oversaturated hydrocarbon is separated out etc., have a strong impact on band rigidity energy on the other hand; The too high recrystallization that is easy to generate of final temperature before the band steel batches, form bonding, the opposing party wears coarse grain tissue that the cooling velocity of steel slowly is easy to generate and carbide gathering etc., and temperature was too high or cross the low mechanical property variation that all can make the band steel before the band steel batched.
When the band coil of strip is bent, the delay of belt steel surface residual water, can directly cause band steel inhomogeneous cooling even, produce a large amount of Quench tissues (as Fig. 5), a large amount of Quench tissues will cause being with steel finished product percentage elongation low, the yield strength of band steel reduces, heavy steel is during 2012 during rolling 16mm coils of hot-rolled steel, because blow device does not blow clean the residual water on the belt steel surface before batching, a large amount of residual water exists belt steel surface to cause 602 heat inspection signals that the disconnected phenomenon of sudden strain of a muscle is arranged, thereby make 602 heat inspections detect band steel toe portion play cover heap steel when 1# batches entrance, cause batching and unload volume in advance, valve will be with steel afterbody folder dead.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of hot-rolling laminar chilling temperature control device, this laminar flow chilling temperature control device is simple in structure, temperature that can the close-in measurement belt steel surface, can accurately control and measure the band steel and batch preceding temperature, improve the mechanical property of band steel, reach the purpose that improves strip quality.
In order to achieve the above object, a kind of hot-rolling laminar chilling temperature of the utility model control device, comprise cooling facility for laminar flow, PLC control device and temperature measuring equipment, described cooling facility for laminar flow comprises cooling device up and down, air purge set and side water-spraying device, described temperature measuring equipment comprises temperature measurer and sleeve pipe, described sleeve pipe be arranged on the sidewall of track between finishing mill and the coiling machine and the sleeve pipe mouth of pipe towards the track upper steel plate, described temperature measurer is arranged in the sleeve pipe, be provided with the water-cooling channel for the sleeve pipe cooling in the described sidewall, be communicated with water cooling tube with described water-cooling channel.
Further, be communicated with to be provided with described water-cooling channel and be no less than 2 nozzles, described nozzle distributes and is arranged on around the mouth of pipe.
Further, be communicated with air inlet pipe on the described sleeve pipe, be provided with the cavity that is communicated with the sleeve pipe mouth of pipe between described sleeve pipe and the temperature measurer, described mouth of pipe place is provided with support, on the described quartz glass support quartz glass is installed, is provided with ventilating opening around the described quartz glass.
Further, described side water-spraying device comprises that all being no less than 2 groups is arranged on fore side nozzle sets and the transmission side nozzle sets of being with both sides, steel rider road, described fore side nozzle sets and transmission side nozzle sets correspondence are crisscross arranged and interlaced distance is 5～20mm, described fore side nozzle sets is provided with and is no less than 1 row's nozzle I, described nozzle I injection direction favours the band steel and spray regime is band steel transmission side 2/3～3/4 zone, described transmission side nozzle sets is provided with and is no less than 1 row's nozzle II, and described nozzle II injection direction favours the band steel and spray regime is band steel fore side 2/3～3/4 zone.
Further, described up and down cooling device comprises and is successively set on fast cold section of being no less than 1 between mm finishing mill unit and the coiling machine, is no less than 10 coarse adjustment section, is no less than 1 chilly section and is no less than 1 accurate adjustment section, be provided with 4 upper headers and 12 lower collector pipe in described fast cold section and coarse adjustment section, described chilly section and accurate adjustment section are provided with 8 upper headers and 16 lower collector pipe, are provided with 1 pair of described fore side nozzle sets and transmission side nozzle sets at each described fast cold section, coarse adjustment section, chilly section and the outlet of accurate adjustment section.
Further, described air purge set comprises the air purge spray nozzle that is arranged on mm finishing mill unit outlet and coiling machine entrance.
Further, described temperature measuring equipment is arranged on air purge spray nozzle front end along the coiling machine entrance along rolling direction.
The beneficial effects of the utility model are:
1, the utility model hot-rolling laminar chilling temperature control device can accurately measure the band steel and batch preceding temperature by the temperature that temperature measuring equipment can the close-in measurement belt steel surface is set, and improves the mechanical property of band steel, reaches the purpose that improves strip quality.
2, the utility model hot-rolling laminar chilling temperature control device is by adjusting side water-spraying device, can reduce the water yield on the belt steel surface, reach and reduce Quench tissue in the band steel, improve the purpose of strip quality, can reduce the hot prosecution plant failure processed that is caused by a large amount of residual water on the belt steel surface in addition, improve the control accuracy of hot prosecution device processed, reduce the equipment breakdown fault rate.
3, the utility model hot-rolling laminar chilling temperature control device can accurately be controlled the band steel and batch preceding temperature by the unlatching number of nozzle in fast cold section of PLC control device control, coarse adjustment section, chilly section and the accurate adjustment section, improves the belt steel product quality.
Description of drawings
Fig. 1 is the structural plan of the utility model hot-rolling laminar chilling temperature control device;
Fig. 2 is the cutaway view of temperature measuring equipment among Fig. 1;
Fig. 3 is the side view of temperature measuring equipment among Fig. 1;
Fig. 4 is side water-spraying device structure of nozzle schematic diagram among Fig. 1;
Fig. 5 contains the microfacies figure of Quench tissue for belt steel surface.
Reference numeral: 1-mm finishing mill unit; Fast cold section of 2-; 3-coarse adjustment section; 4-accurate adjustment section; 5-is with steel; The 6-air purge set; The 7-lower collector pipe; The 8-upper header; The 9-side water-spraying device; Chilly section of 10-; The 11-coiling machine; 12--nozzle I; 13-nozzle II; Chilly section of 20-; The 21-temperature measurer; The 22-sleeve pipe; The 23-sidewall; The 24-quartz glass; The 25-water cooling tube; The 26-water valve; The 27-nozzle; The 28-air inlet pipe; The 29-air valve; The 30-water-cooling channel.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Be illustrated in figure 1 as the structural plan of the utility model hot-rolling laminar chilling temperature control device; Be illustrated in figure 2 as the cutaway view of temperature measuring equipment among Fig. 1; Be illustrated in figure 3 as the side view of temperature measuring equipment among Fig. 1;
A kind of hot-rolling laminar chilling temperature of the utility model control device, comprise cooling facility for laminar flow, PLC control device and temperature measuring equipment, described cooling facility for laminar flow comprises cooling device up and down, air purge set 6 and side water-spraying device 9, temperature measuring equipment 20 comprises temperature measurer 21, also comprise sleeve pipe 22, described sleeve pipe 22 be arranged on the sidewall 23 of track between finishing mill and the coiling machine and sleeve pipe 22 mouths of pipe towards the track upper steel plate, described temperature measurer 21 is arranged in the sleeve pipe 22, be provided with the water-cooling channel 30 for sleeve pipe 22 coolings in the described sidewall 23, be communicated with water cooling tube 25 with described water-cooling channel 30.
This example is by being installed in temperature measurer 21 in the sleeve pipe 22, sleeve pipe 22 is arranged on the sidewall 23 of steel rolling track, around sleeve pipe, be provided with water-cooling channel 30, inject the cooling water of certain pressure to water-cooling channel 30 by water cooling tube 25, reduce the ambient temperature of temperature measurer 21, make the temperature that temperature measurer 21 can the close-in measurement belt steel surface, can accurately measure the band steel and batch preceding temperature, improve strip quality, be provided with water valve 26 at water cooling tube 25, carry out the opening and closing of cooling water, preferred temperature measurer 21 is set to infrared thermometer, the heat energy that the preferred temperature measurer 21 of present embodiment utilizes the radiation of infrared ray absorbing to transform becomes Temperature numerical, and is transmitted as display screen by data wire.
Further, be communicated with to be provided with described water-cooling channel 30 and be no less than 2 nozzles 27, described nozzle 27 distributes and is arranged on around the mouth of pipe, and this structure makes the cooling water in the water cooling tube 25 not only can reduce the ambient temperature of temperature measurer 21, can also cool off the band steel by nozzle 27 ejections.
Further, be communicated with air inlet pipe 28 on the described sleeve pipe 22, described mouth of pipe place is provided with support, described quartz glass 24 is rack-mount, described support is provided with ventilating opening, present embodiment preferably is communicated with air inlet pipe in sleeve pipe, be provided with the cavity that is communicated with sleeve pipe 22 mouths of pipe between described sleeve pipe 22 and the temperature measurer 21, the compressed air that air inlet pipe 28 is blown into can give temperature measurer 21 coolings on one side, reduce steam to the error of temperature measurer 1 temperature measurement accuracy, be provided with air valve 29 in air inlet pipe 28, carry out compressed-air actuated opening and closing, quartz glass has good high temperature resistant, corrosion-resistant, light transmission, insulating properties etc.
Described side water-spraying device 9 comprises that all being no less than 2 groups is arranged on fore side nozzle sets and the transmission side nozzle sets of being with steel 5 roller-way both sides, described fore side nozzle sets and transmission side nozzle sets correspondence are crisscross arranged and interlaced distance is 0～20mm, described fore side nozzle sets is provided with and is no less than 1 row's nozzle I 12, described nozzle I 12 injection directions favour band steel 5 and spray regime is band steel 5 transmission sides 2/3～3/4 zone, described transmission side nozzle sets is provided with and is no less than 1 row's nozzle II 13, and described nozzle II 13 injection directions favour band steel 5 and spray regime is band steel 5 fore sides 2/3～3/4 zone.
Present embodiment is by adjusting side water-spraying device, make in the side water-spraying device 9 the fore side nozzle sets and the transmission side nozzle sets staggers mutually and all have a certain degree with band steel and shape, the cooling water of fore side nozzle sets and the ejection of transmission side nozzle sets can cool off steel strip surface, can form impact to the cooling water by cooling device injection up and down simultaneously, reduce the water yield of the residual water of steel strip surface, the water quench scope of fore side nozzle sets and transmission side nozzle sets ejection is band steel 2/3～3/4 zone in addition, can make cooling evenly, reduce the generation of Quench tissue.
Further, described up and down cooling device comprises and is successively set on fast cold section 2 that is no less than 1 between mm finishing mill unit 1 and the coiling machine 11, be no less than 10 coarse adjustment section 3, be no less than 1 chilly section 10 and be no less than 1 accurate adjustment section 4, be provided with 4 upper headers 8 and 12 lower collector pipe 7 in described fast cold section 2 and coarse adjustment section 3, described chilly section 10 and accurate adjustment section 4 are provided with 8 upper headers 8 and 16 lower collector pipe 7, at each described fast cold section 2, coarse adjustment section 3,4 outlets of chilly section 10 and accurate adjustment section are provided with 1 pair of described fore side nozzle sets and transmission side nozzle sets, present embodiment can be by fast cold section of control device control, the coarse adjustment section, the unlatching number of nozzle in chilly section and the accurate adjustment section, at different materials, the sheet material of thickness, open the different types of cooling, accurately control band steel batches preceding temperature, improves the belt steel product quality.
Further, described air purge set 9 comprises the air purge spray nozzle that is arranged on mm finishing mill unit 1 outlet and coiling machine 11 entrances.
Further, described temperature measuring equipment 30 is arranged on air purge spray nozzle front end along the coiling machine entrance along rolling direction.
Explanation is at last, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the utility model claims institute restricted portion.
Claims (7)
1. hot-rolling laminar chilling temperature control device, comprise cooling facility for laminar flow, PLC control device and temperature measuring equipment, described cooling facility for laminar flow comprises cooling device, air purge set and side water-spraying device up and down, it is characterized in that: described temperature measuring equipment comprises temperature measurer and sleeve pipe, described sleeve pipe be arranged on the sidewall of track between finishing mill and the coiling machine and the sleeve pipe mouth of pipe towards the track upper steel plate, described temperature measurer is arranged in the sleeve pipe, be provided with the water-cooling channel for the sleeve pipe cooling in the described sidewall, be communicated with water cooling tube with described water-cooling channel.
2. hot-rolling laminar chilling temperature control device as claimed in claim 1 is characterized in that: be communicated with described water-cooling channel to be provided with and be no less than 2 nozzles, described nozzle distributes and is arranged on around the mouth of pipe.
3. hot-rolling laminar chilling temperature control device as claimed in claim 1 or 2, it is characterized in that: be communicated with air inlet pipe on the described sleeve pipe, be provided with the cavity that is communicated with the sleeve pipe mouth of pipe between described sleeve pipe and the temperature measurer, described mouth of pipe place is provided with support, on the described quartz glass support quartz glass is installed, is provided with ventilating opening around the described quartz glass.
4. hot-rolling laminar chilling temperature control device as claimed in claim 3, it is characterized in that: described side water-spraying device comprises that all being no less than 2 groups is arranged on fore side nozzle sets and the transmission side nozzle sets of being with both sides, steel rider road, described fore side nozzle sets and transmission side nozzle sets correspondence are crisscross arranged and interlaced distance is 5～20mm, described fore side nozzle sets is provided with and is no less than 1 row's nozzle I, described nozzle I injection direction favours the band steel and spray regime is band steel transmission side 2/3～3/4 zone, described transmission side nozzle sets is provided with and is no less than 1 row's nozzle II, and described nozzle II injection direction favours the band steel and spray regime is band steel fore side 2/3～3/4 zone.
5. hot-rolling laminar chilling temperature control device as claimed in claim 4, it is characterized in that: described up and down cooling device comprises and is successively set on fast cold section that is no less than 1 between mm finishing mill unit and the coiling machine, be no less than 10 coarse adjustment section, be no less than 1 chilly section and be no less than 1 accurate adjustment section, be provided with 4 upper headers and 12 lower collector pipe in described fast cold section and coarse adjustment section, described chilly section and accurate adjustment section are provided with 8 upper headers and 16 lower collector pipe, described fast cold section at each, the coarse adjustment section, the outlet of chilly section and accurate adjustment section is provided with 1 pair of described fore side nozzle sets and transmission side nozzle sets.
6. hot-rolling laminar chilling temperature control device as claimed in claim 5 is characterized in that: described air purge set comprises the air purge spray nozzle that is arranged on mm finishing mill unit outlet and coiling machine entrance.
7. hot-rolling laminar chilling temperature control device as claimed in claim 6 is characterized in that: described temperature measuring equipment is arranged on air purge spray nozzle front end along the coiling machine entrance along rolling direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320118923 CN203170736U (en) | 2013-03-15 | 2013-03-15 | Hot rolling laminar flow cooling temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320118923 CN203170736U (en) | 2013-03-15 | 2013-03-15 | Hot rolling laminar flow cooling temperature control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203170736U true CN203170736U (en) | 2013-09-04 |
Family
ID=49067491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320118923 Withdrawn - After Issue CN203170736U (en) | 2013-03-15 | 2013-03-15 | Hot rolling laminar flow cooling temperature control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203170736U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111474A (en) * | 2013-03-15 | 2013-05-22 | 重庆钢铁(集团)有限责任公司 | Hot rolling laminar cooling temperature control device |
| CN104307891A (en) * | 2014-11-07 | 2015-01-28 | 武汉钢铁(集团)公司 | Stepped hot rolled strip production line laminar flow cooling control method |
| CN114061262A (en) * | 2021-11-23 | 2022-02-18 | 钢铁研究总院 | Cold control method for channel steel |
-
2013
- 2013-03-15 CN CN 201320118923 patent/CN203170736U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111474A (en) * | 2013-03-15 | 2013-05-22 | 重庆钢铁(集团)有限责任公司 | Hot rolling laminar cooling temperature control device |
| CN103111474B (en) * | 2013-03-15 | 2015-08-05 | 重庆钢铁(集团)有限责任公司 | Hot-rolling laminar cooling temperature control device |
| CN104307891A (en) * | 2014-11-07 | 2015-01-28 | 武汉钢铁(集团)公司 | Stepped hot rolled strip production line laminar flow cooling control method |
| CN114061262A (en) * | 2021-11-23 | 2022-02-18 | 钢铁研究总院 | Cold control method for channel steel |
| CN114061262B (en) * | 2021-11-23 | 2023-03-24 | 钢铁研究总院 | Cold control method for channel steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |