CN203459399U - Thin strip hot rolling nitrogen protecting device - Google Patents
Thin strip hot rolling nitrogen protecting device Download PDFInfo
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- CN203459399U CN203459399U CN201320459117.7U CN201320459117U CN203459399U CN 203459399 U CN203459399 U CN 203459399U CN 201320459117 U CN201320459117 U CN 201320459117U CN 203459399 U CN203459399 U CN 203459399U
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- nitrogen
- hot rolling
- strip hot
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Abstract
The utility model provides a thin strip hot rolling nitrogen protecting device which comprises a thin strip hot rolling mill set. The thin strip hot rolling mill set comprises a transmission system, a machine front reeling furnace and a machine rear reeling furnace and a four-roller reversible type rolling mill. The whole thin strip hot rolling mill set is arranged in an atmosphere protecting cover except the transmission system, the atmosphere protecting cover and every reeling furnace are respectively provided with a group of nitrogen circulating pipes, and the nitrogen circulating pipes of the atmosphere protecting cover are in parallel connection with the nitrogen circulating pipes of every reeling furnace. The nitrogen circulating pipes of the atmosphere protecting cover are provided with a flow meter and a pressure meter, a side wall of the atmosphere protecting cover is provided with a temperature measurer and a pressure meter, the nitrogen circulating pipes are in series connection with a nitrogen circulating fan and a nitrogen cooling cavity, and an outlet section of the nitrogen cooling cavity is provided with a thermometer. The thin strip hot rolling nitrogen protecting device can be recycled, the temperature is controllable and adjustable, and the thin strip hot rolling nitrogen protecting device not only has an atmosphere protection rolling function, but also can achieve a reeling furnace rapid cooling function.
Description
Technical field
The utility model device belongs to metallurgy industry hot rolling technical field, is a kind of strip hot rolling nitrogen protection device particularly.
Background technology
In strip hot rolling production process, for preventing strip surface generation oxidative phenomena, conventionally in strip rolling mill practice section, adopt atmosphere protection rolling technique.Be that strip-rolling process is all carried out in atmosphere protection cover, by the control to gas in protective cover (being generally nitrogen) temperature, flow, pressure, realize controlled, the surperficial non-oxidation of strip temperature.
There is following problem in existing nitrogen protection device: the one, and nitrogen consumption is large, energy consumption is high.The nitrogen of existing nitrogen protection device is first heated to after uniform temperature by heating tube (or heat exchanger), then is blown in nitrogen protecting cover, then in line in atmosphere.Which electric energy and nitrogen consumption are all very large, neither energy-conservation also not environmental protection.The 2nd, when coiler furnace blowing out is safeguarded, overhauled, furnace temperature reduction of speed is slow, and equipment utilization rate is low.Coiler furnace, when safeguarding, overhauling, for security consideration, must be down to room temperature by furnace temperature (approximately 1000 ℃ of left and right), makes staff be unlikely to produce the doubt in safety.Nature falling temperature method is taked in existing coiler furnace cooling, and temperature fall time is long, cannot effectively use equipment task time, not good enough in the consideration of cost and production time.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency for above-mentioned existence, provides a kind of reusable edible, temperature controlled, adjustable, not only possesses atmosphere protection rolling function, can also realize the strip hot rolling nitrogen protection device of coiler furnace quick cooling function.
The utility model solves the technical scheme that its technical problem adopts:
Strip hot rolling nitrogen protection device, include strip hot rolling unit, strip hot rolling unit includes coiler furnace and four-high reversing mill after coiler furnace before transmission system, machine, machine, except transmission system, whole piece unit is arranged in atmosphere protection cover, it is characterized in that: on described atmosphere protection cover and each coiler furnace, all offer one group of nitrogen circulation pipeline, the nitrogen circulation pipeline of atmosphere protection cover and the nitrogen circulation pipeline of each coiler furnace are in parallel, wherein, on the nitrogen circulation pipeline of atmosphere protection cover, be provided with flowmeter and pressure gauge; On atmosphere protection cover sidewall, be provided with temperature measurer and pressure gauge; On nitrogen circulation pipeline, be in series with the cooling cavity of nitrogen circulation blower fan and nitrogen, the cooling cavity outlet section of nitrogen is provided with thermometer.
In such scheme, the cooling cavity of described nitrogen can be chosen common pipe or the one group of hollow cavity of being convenient to nitrogen circulation and temperature transmission that one end caliber is larger and serve as.
In such scheme, for improving nitrogen cooling effectiveness, at the cooling cavity of nitrogen, be provided with nitrogen water cooling plant around, water cooling plant comprises and is coated on the circulating water pipe of the entery and delivery port on water-cooled cavity described in the external water-cooled cavity of nitrogen cooling chamber and UNICOM and is connected on water cooling unit, the water circulating pump in described circulating water pipe, consider economic benefit, cooling water adopts water for industrial use.
The effect of water cooling unit is to make the temperature of cooling water to maintain near a lower temperature, thereby be convenient to be stored in the cooling water in water-cooled cavity, the nitrogen that cooled flow circulates in cavity at nitrogen uniformly, thus make nitrogen remain on lower temperature, take more heats out of.
Compared with prior art, technical advantage of the present utility model is:
The one, energy consumption is low, nitrogen consumption is few.This device nitrogen add heat utilization coiler furnace self thermal source, without extra electric heater or the heat exchanger of increasing, save energy consumption.In addition, nitrogen protection device adopts cycle structure design, has significantly reduced the increment of nitrogen.
The 2nd, shortened coiler furnace blowing out temperature fall time, indirectly increased the coiler furnace working time, increase operating efficiency.This device is provided with nitrogen circulation water cooling plant, can utilize nitrogen to make fluid media (medium), realizes the quick cooling function of coiler furnace.
Accompanying drawing explanation
Fig. 1 is the utility model example structure figure;
In figure: coiler furnace inlet adjusting valve 19-nitrogen circulation blower fan 20-inlet adjusting main valve before coiler furnace inlet adjusting valve 16-flowmeter 17-stay-warm case control valve 18-machine after coiler furnace 13-temperature measurer 14-pressure gauge 15-machine after coiler furnace outlet regulating valve 12-machine after coiler furnace 10-four-high reversing mill 11-machine before coiler furnace outlet regulating valve 9-machine before the cooling cavity 8-of 1-atmosphere protection cover 2-band steel 3-thermometer 4-water circulating pump 5-water cooling unit 6-water cooling plant 7-nitrogen machine.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is further described:
Strip hot rolling nitrogen protection device as shown in Figure 1, include strip hot rolling unit, strip hot rolling unit includes transmission system, coiler furnace 9 before machine, coiler furnace 12 and four-high reversing mill 10 after machine, except transmission system, whole piece unit is arranged in atmosphere protection cover 1, coiler furnace 9 before described atmosphere protection cover 1 and machine, after machine, on coiler furnace 12, all offer one group of nitrogen circulation pipeline, the nitrogen circulation pipeline of atmosphere protection cover 1 and the nitrogen circulation pipeline of each coiler furnace are in parallel, wherein, on the nitrogen circulation pipeline of atmosphere protection cover 1, be provided with flowmeter and pressure gauge, on atmosphere protection cover 1 sidewall, be provided with temperature measurer 13 and pressure gauge 14, on nitrogen circulation pipeline, be in series with the cooling cavity 7 of nitrogen circulation blower fan 19 and nitrogen, cooling cavity 7 outlet sections of nitrogen are provided with thermometer 3.The cooling cavity 7 of described nitrogen is chosen one group of hollow cavity of being convenient to nitrogen circulation and temperature transmission and is served as.For improving nitrogen cooling effectiveness, at the cooling cavity 7 of nitrogen, be provided with nitrogen water cooling plant 6 around, water cooling plant comprises the circulating water pipe of the entery and delivery port on water-cooled cavity described in the water-cooled cavity that is coated on outside the cooling cavity 7 of nitrogen and UNICOM and is connected on water cooling unit, the water circulating pump in described circulating water pipe, consider economic benefit, cooling water adopts water for industrial use.
During the work of the utility model device, nitrogen water cooling plant 6 cuts out, and each valve is in normally off.Before machine, after coiler furnace 9, machine, coiler furnace 12 heats up furnace atmosphere by self burner or resistance wire respectively, when in stove, temperature arrives setting value, coiler furnace outlet regulating valve 11 unlatchings after coiler furnace inlet adjusting valve 15, machine after coiler furnace outlet regulating valve 8, machine before coiler furnace inlet adjusting valve 18, machine before inlet adjusting main valve 20, machine, nitrogen circulation blower fan 19 is started working, normal temperature nitrogen is under the effect of circulating fan, after coiler furnace before machine 9, machine, coiler furnace 12, carry out circulating-heating.When thermometer 3 reaches setting value, stay-warm case control valve 17 is opened, and before machine, after machine, the import and export valve of coiler furnace cuts out, and has the nitrogen of uniform temperature under circulating fan effect, through atmosphere protection cover 1, and the cooling cavity 7 of nitrogen, circular flow.When temperature measurer 13, pressure gauge 14, flowmeter 16 reach setting value, band steel 2 enters in atmosphere protection cover, and strip hot rolling unit starts atmosphere protection rolling.
Coiler furnace quick temperature-reducing function: before machine, after machine coiler furnace need that blowing out is safeguarded, during maintenance, now nitrogen water cooling plant drops into application, stay-warm case control valve cuts out, before inlet adjusting main valve, machine, after machine, coiler furnace import and export control valve is opened, water circulating pump 4, water cooling unit 5, nitrogen circulation blower fan are started working, be present in before machine, the nitrogen after machine in coiler furnace, the cooling cavity of nitrogen and nitrogen gas delivery-line is under circulating fan auxiliary, constantly circulation, takes the waste heat before machine, after machine in coiler furnace out of slowly.In the nitrogen circulation process of circulation, cooling water (industry water) also under the pumping of water circulating pump reciprocation cycle flow, thereby make nitrogen remain on lower temperature, take more heats out of, realize the object of high efficiency cooling coiler furnace.
More than explanation is only Application Example of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalence of therefore doing according to the utility model claim changes, and still belongs to protection domain of the present utility model.
Claims (4)
1. strip hot rolling nitrogen protection device, include strip hot rolling unit, strip hot rolling unit includes coiler furnace and four-high reversing mill after coiler furnace before transmission system, machine, machine, except transmission system, whole piece unit is arranged in atmosphere protection cover, it is characterized in that: on described atmosphere protection cover and each coiler furnace, all offer one group of nitrogen circulation pipeline, the nitrogen circulation pipeline of atmosphere protection cover and the nitrogen circulation pipeline of each coiler furnace are in parallel, wherein, on the nitrogen circulation pipeline of atmosphere protection cover, be provided with flowmeter and pressure gauge; On atmosphere protection cover sidewall, be provided with temperature measurer and pressure gauge; On nitrogen circulation pipeline, be in series with the cooling cavity of nitrogen circulation blower fan and nitrogen, the cooling cavity outlet section of nitrogen is provided with thermometer.
2. strip hot rolling nitrogen protection device as claimed in claim 1, is characterized in that: the cooling cavity of described nitrogen is the common pipe that one end caliber is larger.
3. strip hot rolling nitrogen protection device as claimed in claim 1, is characterized in that: the cooling cavity of described nitrogen is one group of hollow cavity of being convenient to nitrogen circulation and temperature transmission.
4. the strip hot rolling nitrogen protection device as described in claim 1 or 2 or 3; it is characterized in that: the cooling cavity of described nitrogen is around provided with nitrogen water cooling plant, water cooling plant comprises and is coated on the circulating water pipe of the entery and delivery port on water-cooled cavity described in the external water-cooled cavity of nitrogen cooling chamber and UNICOM and is connected on water cooling unit, the water circulating pump in described circulating water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459117.7U CN203459399U (en) | 2013-07-30 | 2013-07-30 | Thin strip hot rolling nitrogen protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459117.7U CN203459399U (en) | 2013-07-30 | 2013-07-30 | Thin strip hot rolling nitrogen protecting device |
Publications (1)
| Publication Number | Publication Date |
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| CN203459399U true CN203459399U (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320459117.7U Expired - Fee Related CN203459399U (en) | 2013-07-30 | 2013-07-30 | Thin strip hot rolling nitrogen protecting device |
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| CN (1) | CN203459399U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679423A (en) * | 2017-01-09 | 2017-05-17 | 山东钢铁集团日照有限公司 | Anti-oxidative coiling furnace |
| CN111014603A (en) * | 2019-12-30 | 2020-04-17 | 江苏沙钢集团有限公司 | Double-roller casting-rolling production method of boron-added steel |
| CN115301732A (en) * | 2022-08-10 | 2022-11-08 | 深圳市东贤工业材料有限公司 | Energy-saving high accuracy hot press unit for copper strips processing |
-
2013
- 2013-07-30 CN CN201320459117.7U patent/CN203459399U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679423A (en) * | 2017-01-09 | 2017-05-17 | 山东钢铁集团日照有限公司 | Anti-oxidative coiling furnace |
| CN111014603A (en) * | 2019-12-30 | 2020-04-17 | 江苏沙钢集团有限公司 | Double-roller casting-rolling production method of boron-added steel |
| CN111014603B (en) * | 2019-12-30 | 2022-02-25 | 江苏沙钢集团有限公司 | Double-roller casting-rolling production method of boron-added steel |
| CN115301732A (en) * | 2022-08-10 | 2022-11-08 | 深圳市东贤工业材料有限公司 | Energy-saving high accuracy hot press unit for copper strips processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170717 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20190730 |