CN105127387A - Purging inspection device of continuous casting three-machine three-flow spraying system and purging inspection method - Google Patents
Purging inspection device of continuous casting three-machine three-flow spraying system and purging inspection method Download PDFInfo
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- CN105127387A CN105127387A CN201510532336.7A CN201510532336A CN105127387A CN 105127387 A CN105127387 A CN 105127387A CN 201510532336 A CN201510532336 A CN 201510532336A CN 105127387 A CN105127387 A CN 105127387A
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Abstract
The invention discloses a purging inspection device of a continuous casting three-machine three-flow spraying system. The device comprises a second-cold water main pipe, a nitrogen main pipe, a first-flow spraying system, a second-flow spraying system and a third-flow spraying system, wherein one end of the second-cold water main pipe is connected to a second-cold water pipe network, and the other end is respectively connected to the first-flow spraying system, the second-flow spraying system and the third-flow spraying system through three second-cold water branch pipes; four spraying pipes are respectively arranged in the first-flow spraying system, the second-flow spraying system and the third-flow spraying system; the second-cold water branch pipes are communicated with corresponding four spraying pipes; and one end of the nitrogen main pipe is connected to a nitrogen pipe network, and the other end is respectively connected to each spraying pipe through metal hoses. The purging inspection device of the continuous casting three-machine three-flow spraying system can effectively drain water remained in the spraying pipes and nozzles to largely reduce the formation of incrustations and to effectively reduce the blockage rate of the nozzles.
Description
Technical field
The present invention relates to continuous casting two cold technical field, specifically a kind of continuous casting three machine three flows spray system inspection blow device and checks blowing method.
Background technology
The continuous casting of iron and steel industry of China is through the development of nearly decades, two refrigeration techniques make rapid progress, its type of cooling and kind have also had very much progress comparatively in the past, but maintenance and the test problems of the spray system brought can not be ignored thereupon, even some unit is once because of secondary cooling system failure to maintain, cause the appearance quality that strand is a large amount of, What is more also can occur as the problem such as bleed-out, off-square, de-circle, strand sideslip.
Especially when conticaster is produced and can not be carried out continuously, because secondary cooling water many employings muddy water or recirculated water are as medium, wherein composition includes calcium oxide, iron oxide, silica, magnesia etc. more, as two cold pipe networks can not be discharged in time when equipment shuts down, very easily be attached to shower, nozzle inner walls thus affect two cold cooling effects and even cause the serious problems such as nozzle not water outlet, produce to slab quality and continuous casting and bring great hidden danger.So to overcome when this difficult problem has become modern instant problem today.
Summary of the invention
The object of the present invention is to provide a kind of continuous casting three machine three to flow spray system check blow device and check blowing method, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of continuous casting three machine three flows spray system and checks blow device, comprises secondary cooling water main pipeline, nitrogen main pipeline, first-class spray system, second-rate spray system and three stream spray systems; Described secondary cooling water main pipeline one end is connected to secondary cooling water pipe network, the other end is connected to first-class spray system, second-rate spray system and three stream spray systems respectively by three secondary cooling water branch pipe(tube)s, secondary cooling water main pipeline is provided with secondary cooling water inlet valve, secondary cooling water branch pipe(tube) is provided with secondary cooling water branch pipe(tube) valve, four showers are equipped with in first-class spray system, second-rate spray system and three stream spray systems, secondary cooling water branch pipe(tube) is communicated with corresponding four showers, shower is provided with Pressure gauge and shower water intaking valve, is provided with gauge valve between Pressure gauge and shower; Described nitrogen main pipeline one end is connected to Nitrogen pipe network, and the other end is connected to each shower respectively by metal hose, and the junction of metal hose and shower is provided with nitrogen valve, and nitrogen main pipeline is provided with nitrogen main valve and pressure-reducing valve.
As the further scheme of the present invention: described secondary cooling water main pipeline is also provided with secondary cooling water force (forcing) pump, secondary cooling water filter and secondary cooling water inlet gage.
As the present invention's further scheme: described shower is also provided with electric control valve and electronic flowmeter.
As the present invention's further scheme: described pressure-reducing valve is provided with pressure display instrument and filter.
Flow based on described continuous casting three machine three the inspection blowing method that spray system checks blow device, step is as follows:
The first step, the secondary cooling water branch pipe(tube) valve of closing on each secondary cooling water branch pipe(tube);
Second step, the shower water intaking valve of closing on each shower;
3rd step, close the gauge valve at each Pressure gauge place;
4th step, unlatching nitrogen main valve;
5th step, open the nitrogen valve at each metal hose place, the nitrogen in Nitrogen pipe network enters each shower through nitrogen main pipeline and metal hose, checks each shower or purges;
After 6th step, shower inspection or purging, close the nitrogen valve at each metal hose place;
7th step, closedown nitrogen main valve;
8th step, open the gauge valve at each Pressure gauge place;
9th step, the shower water intaking valve opened on each shower;
Secondary cooling water branch pipe(tube) valve on tenth step, each secondary cooling water branch pipe(tube) needs, to row unlatching again when again producing, to enter in shower to avoid the recirculated water in secondary cooling water main pipeline.
Compared with prior art, the invention has the beneficial effects as follows: 1, this continuous casting three machine three flows spray system inspection blow device, in conticaster production gap, when equipment shuts down, secondary cooling water can be discharged two cold pipe networks in time, avoid the calcium oxide in secondary cooling water, iron oxide, silica, magnesia etc. to be attached to shower, nozzle inner walls produces dirt, make the smooth or atomization badness of nozzle water outlet, ensure that nozzle has good atomization environment when continuous casting is produced, di-cold spray nozzle stopping state falls few greatly; 2, this continuous casting three machine three flows spray system inspection blow device, under anhydrous conditions with nitrogen or pneumatics wind as medium, complete the serviceable condition inspection to two cold pipe network equipment facilities, reduction equipment test run cost, can be under anhydrous conditions, find ahead of time the hardware device facility faulty condition that secondary cooling system exists, by pressure release, leak, the accident such as gas leakage finds and processes before producing; 3, this continuous casting three machine three flows spray system inspection blow device, in the winter time or in the lower situation of temperature, when continuous casting is produced discontinuous, utilize nitrogen or pneumatics wind as blowing medium, complete the purging pipe network to secondary cooling water supply and distribution system, avoid the equipment caused because of low temperature to freeze damage.
Accompanying drawing explanation
Fig. 1 is the structural representation that continuous casting three machine three flows that spray system checks blow device.
In figure: 1-secondary cooling water pipe network, 2-secondary cooling water inlet valve, 3-secondary cooling water force (forcing) pump, 4-secondary cooling water main pipeline, 5-secondary cooling water filter, 6-secondary cooling water inlet gage, 7-Nitrogen pipe network, 8-nitrogen main valve, 9-pressure-reducing valve, 10-nitrogen main pipeline, the first-class spray system of 11-, the second-rate spray system of 12-, 13-tri-flows spray system, 14-shower, 15-nitrogen valve, 16-metal hose, 17-Pressure gauge, 18-gauge valve, 19-electric control valve, 20-electronic flowmeter, 21-shower water intaking valve, 22-secondary cooling water branch pipe(tube) valve.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1, a kind of continuous casting three machine three flows spray system and checks blow device, comprises secondary cooling water main pipeline 4, nitrogen main pipeline 10, first-class spray system 11, second-rate spray system 12 and three stream spray systems 13, described secondary cooling water main pipeline 4 one end is connected to secondary cooling water pipe network 1, the other end is connected to first-class spray system 11 respectively by three secondary cooling water branch pipe(tube)s, second-rate spray system 12 and three stream spray systems 13, secondary cooling water main pipeline 4 is provided with secondary cooling water inlet valve 2, secondary cooling water force (forcing) pump 3, secondary cooling water filter 5 and secondary cooling water inlet gage 6, secondary cooling water branch pipe(tube) is provided with secondary cooling water branch pipe(tube) valve 22, first-class spray system 11, four showers 14 are equipped with in second-rate spray system 12 and three stream spray systems 13, secondary cooling water branch pipe(tube) is communicated with corresponding four showers 14, shower 14 is provided with Pressure gauge 17, electric control valve 19, electronic flowmeter 20 and shower water intaking valve 21, gauge valve 18 is provided with between Pressure gauge 17 and shower 14, described nitrogen main pipeline 10 one end is connected to Nitrogen pipe network 7, the other end is connected to each shower 14 respectively by metal hose 16, metal hose 16 is provided with nitrogen valve 15 with the junction of shower 14, nitrogen main pipeline 10 is provided with nitrogen main valve 8 and pressure-reducing valve 9, and pressure-reducing valve 9 is provided with pressure display instrument and filter.
Operation principle of the present invention is: described continuous casting three machine three flows spray system and checks blow device, secondary cooling water in secondary cooling water pipe network 1 enters in secondary cooling water main pipeline 4, secondary cooling water force (forcing) pump 3 and secondary cooling water filter 5 pressurize to secondary cooling water respectively and filter, secondary cooling water inlet gage 6 shows the pressure of the secondary cooling water after pressurization, secondary cooling water in secondary cooling water main pipeline 4 enters in the shower 14 in first-class spray system 11, second-rate spray system 12 and three stream spray systems 13, to spray by secondary cooling water branch pipe(tube).Nitrogen in Nitrogen pipe network 7 is sent in nitrogen main pipeline 10, and enters in each shower 14 through each metal hose 16, and the pressure display instrument on pressure-reducing valve 9 is used to indicate the air pressure in nitrogen main pipeline 10.
Continuous casting secondary cooling water operating pressure is 0.9-1.2MPA, and pneumatics wind is 0.5-0.7MPA, Nitrogen pipe network 7 pressure >=0.8MPA, flow >=1000m3/h; Be connected by pressure-reducing valve 9, metal hose 16 between Nitrogen pipe network 7 with secondary cooling water pipe network, pressure-reducing valve 9 operating pressure adjusting range is 0.1-1MPA; Metal hose 16 operating pressure is 1-1.6MPA.
Flow based on described continuous casting three machine three the inspection blowing method that spray system checks blow device, step is as follows: the first step, the secondary cooling water branch pipe(tube) valve 22 of closing on each secondary cooling water branch pipe(tube); Second step, the shower water intaking valve 21 of closing on each shower 14; 3rd step, close the gauge valve 18 at each Pressure gauge 17 place; 4th step, unlatching nitrogen main valve 8; 5th step, open the nitrogen valve 15 at each metal hose 16 place, the nitrogen in Nitrogen pipe network 7 enters each shower 14 through nitrogen main pipeline 10 and metal hose 16, checks each shower 14 or purges; After 6th step, shower 14 check or purge, close the nitrogen valve 15 at each metal hose 16 place; 7th step, closedown nitrogen main valve 8; 8th step, open the gauge valve 18 at each Pressure gauge 17 place; 9th step, the shower water intaking valve 21 opened on each shower 14; Secondary cooling water branch pipe(tube) valve 22 on tenth step, each secondary cooling water branch pipe(tube), to row unlatching again when again producing, enters in shower 14 to avoid the recirculated water in secondary cooling water main pipeline 4.
After production terminates, nitrogen purging is carried out to secondary cooling system, effectively can discharge the residual moisture content of shower and nozzle interior, (muddy water of circulation is adopted to cool strand because secondary cooling water, this step is extremely important) make the drug entities in water and incrustation scale formation and various oxide be difficult to resident spray system, thus greatly reduce the formation of incrustation scale etc., also effectively reduce the plugging rate of nozzle simultaneously.
Again during Operational preparation, when secondary cooling water inlet valve is closed, open nitrogen purging device, and pressure is remained between 0.2-0.4mpa, the water running of gas is utilized to replace water simulation spray system band.Now just can the inspection each di-cold spray nozzle being simulated to regimen condition one by one, find can changing in time or keep in repair of individual nozzles blocking, avoid the slab quality accident brought because of spray nozzle clogging and production accident.
Repeat above-mentioned two steps can ensure to increase 2-3 the service life of nozzle than usual doubly; Save di-cold spray nozzle spending year and can reach more than 100,000 yuan.
Described continuous casting three machine three flows spray system and checks blow device, in conticaster production gap, when equipment shuts down, secondary cooling water can be discharged two cold pipe networks in time, avoid the calcium oxide in secondary cooling water, iron oxide, silica, magnesia etc. to be attached to shower, nozzle inner walls produces dirt, make the smooth or atomization badness of nozzle water outlet, ensure that nozzle has good atomization environment when continuous casting is produced, di-cold spray nozzle stopping state falls few greatly, and parts replacement rate declines 80% comparatively in the past.Nozzle repairable return rate has also had than before and has significantly improved, and saves spare part spending more than 100,000 yuan year; Described continuous casting three machine three flows spray system and checks blow device, under anhydrous conditions with nitrogen or pneumatics wind as medium, complete the serviceable condition inspection to two cold pipe network equipment facilities, reduction equipment test run cost, can be under anhydrous conditions, find ahead of time the hardware device facility faulty condition that secondary cooling system exists, by pressure release, leak, the accident such as gas leakage finds and processes before producing; Described continuous casting three machine three flows spray system and checks blow device, in the winter time or in the lower situation of temperature, when continuous casting is produced discontinuous, utilize nitrogen or pneumatics wind as blowing medium, complete the purging pipe network to secondary cooling water supply and distribution system, avoid the equipment caused because of low temperature to freeze damage.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (5)
1. continuous casting three machine three flows a spray system inspection blow device, it is characterized in that, comprises secondary cooling water main pipeline (4), nitrogen main pipeline (10), first-class spray system (11), second-rate spray system (12) and three streams spray system (13), described secondary cooling water main pipeline (4) one end is connected to secondary cooling water pipe network (1), the other end is connected to first-class spray system (11) respectively by three secondary cooling water branch pipe(tube)s, second-rate spray system (12) and three streams spray system (13), secondary cooling water main pipeline (4) is provided with secondary cooling water inlet valve (2), secondary cooling water branch pipe(tube) is provided with secondary cooling water branch pipe(tube) valve (22), first-class spray system (11), four showers (14) are equipped with in second-rate spray system (12) and three streams spray system (13), secondary cooling water branch pipe(tube) is communicated with corresponding four showers (14), shower (14) is provided with Pressure gauge (17) and shower water intaking valve (21), gauge valve (18) is provided with between Pressure gauge (17) and shower (14), described nitrogen main pipeline (10) one end is connected to Nitrogen pipe network (7), the other end is connected to each shower (14) respectively by metal hose (16), metal hose (16) is provided with nitrogen valve (15) with the junction of shower (14), and nitrogen main pipeline (10) is provided with nitrogen main valve (8) and pressure-reducing valve (9).
2. continuous casting three machine three according to claim 1 flows spray system inspection blow device, it is characterized in that, described secondary cooling water main pipeline (4) is also provided with secondary cooling water force (forcing) pump (3), secondary cooling water filter (5) and secondary cooling water inlet gage (6).
3. continuous casting three machine three according to claim 1 and 2 flows spray system inspection blow device, it is characterized in that, described shower (14) is also provided with electric control valve (19) and electronic flowmeter (20).
4. continuous casting three machine three according to claim 3 flows spray system inspection blow device, and it is characterized in that, described pressure-reducing valve (9) is provided with pressure display instrument and filter.
5. flow based on continuous casting three machine three as described in as arbitrary in claim 1-4 the inspection blowing method that spray system checks blow device, it is characterized in that, step is as follows:
The first step, the secondary cooling water branch pipe(tube) valve (22) of closing on each secondary cooling water branch pipe(tube);
Second step, the shower water intaking valve (21) of closing on each shower (14);
3rd step, close the gauge valve (18) at each Pressure gauge (17) place;
4th step, unlatching nitrogen main valve (8);
5th step, open the nitrogen valve (15) at each metal hose (16) place, the nitrogen in Nitrogen pipe network (7) enters each shower (14) through nitrogen main pipeline (10) and metal hose (16), checks each shower (14) or purges;
6th step, shower (14) close the nitrogen valve (15) at each metal hose (16) place after checking or purging;
7th step, closedown nitrogen main valve (8);
8th step, open the gauge valve (18) at each Pressure gauge (17) place;
9th step, the shower water intaking valve (21) opened on each shower (14);
Secondary cooling water branch pipe(tube) valve (22) on tenth step, each secondary cooling water branch pipe(tube) needs, to row unlatching again when again producing, to enter in shower (14) to avoid the recirculated water in secondary cooling water main pipeline (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532336.7A CN105127387A (en) | 2015-08-26 | 2015-08-26 | Purging inspection device of continuous casting three-machine three-flow spraying system and purging inspection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510532336.7A CN105127387A (en) | 2015-08-26 | 2015-08-26 | Purging inspection device of continuous casting three-machine three-flow spraying system and purging inspection method |
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| CN201510532336.7A Pending CN105127387A (en) | 2015-08-26 | 2015-08-26 | Purging inspection device of continuous casting three-machine three-flow spraying system and purging inspection method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871025A (en) * | 2020-07-29 | 2020-11-03 | 九牧厨卫股份有限公司 | Water purifier and method for improving internal environment quality |
| CN115446277A (en) * | 2022-08-05 | 2022-12-09 | 河钢乐亭钢铁有限公司 | Slab sector spraying off-line detection device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005219118A (en) * | 2004-02-09 | 2005-08-18 | Nippon Steel Corp | Descaler on cast slab in continuous casting and descaling method |
| CN202061850U (en) * | 2010-12-09 | 2011-12-07 | 攀钢集团钢铁钒钛股份有限公司 | Secondary cold water pipeline washing device of continuous casting machine |
| CN202224619U (en) * | 2011-08-31 | 2012-05-23 | 扬州宏诚冶金设备有限公司 | Gas-water spraying device for continuous casting |
| CN203124668U (en) * | 2013-03-26 | 2013-08-14 | 上海骐达冶金设备有限公司 | Continuous casting machine secondary cooling air water atomization system |
| CN103252467A (en) * | 2013-05-10 | 2013-08-21 | 中冶南方工程技术有限公司 | Secondary cooling spraying device for square billet continuous casting |
| CN204194743U (en) * | 2014-08-20 | 2015-03-11 | 新疆八一钢铁股份有限公司 | A kind of sheet billet continuous casting cooling water system defroster |
-
2015
- 2015-08-26 CN CN201510532336.7A patent/CN105127387A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005219118A (en) * | 2004-02-09 | 2005-08-18 | Nippon Steel Corp | Descaler on cast slab in continuous casting and descaling method |
| CN202061850U (en) * | 2010-12-09 | 2011-12-07 | 攀钢集团钢铁钒钛股份有限公司 | Secondary cold water pipeline washing device of continuous casting machine |
| CN202224619U (en) * | 2011-08-31 | 2012-05-23 | 扬州宏诚冶金设备有限公司 | Gas-water spraying device for continuous casting |
| CN203124668U (en) * | 2013-03-26 | 2013-08-14 | 上海骐达冶金设备有限公司 | Continuous casting machine secondary cooling air water atomization system |
| CN103252467A (en) * | 2013-05-10 | 2013-08-21 | 中冶南方工程技术有限公司 | Secondary cooling spraying device for square billet continuous casting |
| CN204194743U (en) * | 2014-08-20 | 2015-03-11 | 新疆八一钢铁股份有限公司 | A kind of sheet billet continuous casting cooling water system defroster |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871025A (en) * | 2020-07-29 | 2020-11-03 | 九牧厨卫股份有限公司 | Water purifier and method for improving internal environment quality |
| CN115446277A (en) * | 2022-08-05 | 2022-12-09 | 河钢乐亭钢铁有限公司 | Slab sector spraying off-line detection device and method |
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Application publication date: 20151209 |
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