CN102287850B - Low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system - Google Patents
Low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system Download PDFInfo
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- CN102287850B CN102287850B CN2011101996571A CN201110199657A CN102287850B CN 102287850 B CN102287850 B CN 102287850B CN 2011101996571 A CN2011101996571 A CN 2011101996571A CN 201110199657 A CN201110199657 A CN 201110199657A CN 102287850 B CN102287850 B CN 102287850B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention discloses a low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system, which comprises a vertical-furnace combustion-control system, an upper-lower flow-slot combustion-control system, a heat-preserving furnace combustion-control system, a tundish combustion-control system and a cast-wheel heating combustion-control system, wherein each part of the combustion-control system respectively comprises a wind-supply pipeline, an air-supply pipeline, a burner and a wind-combustion proportional regulator; air and fuel gas are automatically regulated to an optimal state according to the proportion of 10:1 after being premixed through the wind-combustion proportional regulator; and when the mixed gas enters a combustion area, the atmosphere is stable, the combustion is sufficient, and the oxygen content of a finished-product copper rod is stable. The combustion-control system disclosed by the invention has the advantages of convenience in operation, uniform atmosphere and sufficiency in combustion, the optimum oxygen content of the finished-product copper rod reaches more than 75 percent, and the quality of a product is markedly improved.
Description
Technical field
The invention belongs to combustion control system technical field in the low-oxygen copper-rod continuous-casting continuous-rolling production line.
Background technology
The low-oxygen copper-rod continuous-casting continuous-rolling production line comprises combustion system, continuous casting and continuous-rolling system, combustion system comprises again shaft furnace, upper chute, holding furnace, downtand and tundish, wherein 13 burners of shaft furnace (such as Fig. 1), 3 burners of upper chute, 4 burners of holding furnace, 4 burners of downtand and 2 burners of tundish.After cathode copper melted in shaft furnace, copper water flowed into chute, holding furnace, downtand and tundish successively, entered later process processing again.Combustion system takes following mode to control: the wind of each burner is controlled blast by different butterfly valves, and by the automatic regulating gas pressure of zero balance valve, regulates mixed proportion by mixing valve again.Method of operating: plugged at first, next opens gate valve, manual magnetic valve, the dish valve control burner pressure of each burner of manual adjustments is controlled mixing valve again and is regulated atmosphere, watches burner flame and controls the needed atmosphere of each pouring mouth according to the CO analysis result by observation window at last.Because burner wind, combustion gas are respectively by butterfly valve, balanced valve and mixing valve control, the atmosphere detection obtains CO analysis data by the sample tap of each burner respectively, each burner blast is different like this, atmosphere is unbalanced, poor stability, finished product copper bar oxygen content control is unstable cause containing oxygen control can not be excessively low, whole oxygen content is higher.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system, this control system air feed is stable, flame combustion is abundant, shaft furnace, holding furnace copper water oxygen content are controlled in certain scope, the excellent oxygen rate that contains of finished product copper bar reaches more than 75%, properties of product be improved significantly.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system, by the shaft furnace combustion control system, upper downtand combustion control system, the holding furnace combustion control system, tundish combustion control system and cast wheel Heats up the combustion control system form, the each several part combustion control system comprises respectively air-supply pipeline 6, supply air line 7, burner 8, this combustion control system also comprises wind combustion proportional controller 9, described wind combustion proportional controller 9 is connected between air-supply pipeline 6 supply air lines 7 and burner 8 and with them, comprise stop valve 11, filter 12, magnetic valve 13, motor-driven valve 14, proportioning valve 15, air-supply pipeline 6, supply air line 7, hybrid chamber 16, motor-driven valve 17, check-valves 18, gate valve 19, described stop valve 11, filter 12, magnetic valve 13, motor-driven valve 14, proportioning valve 15 connects successively along fuel gas inlet direction pipeline arranges, gate valve 19, check-valves 18, motor-driven valve 17 connects successively along wind inlet direction pipeline arranges, and 15 another outlets of described proportioning valve are communicated with by the pipeline series connection and with air-supply pipeline 6 between motor-driven valve 17 and the hybrid chamber 16.
This combustion control system also comprises gas heater 10, described gas heater 10 is connected between air-supply pipeline 6 supply air lines 7 and wind combustion proportional controller 9 and with them, comprise hot-blast outlet pipe 20, hot blast inlet tube 21, surge tank 22, gas outlet pipe 23, fuel gas inlet pipe 24, the wind that blower fan produces flows to surge tank 22 through air-supply pipeline 6 hot blast inlet tubes 21, flow to wind combustion proportional controller 9 by hot-blast outlet pipe 20 again, gas supply pipeline 7 parts extend in the surge tank 22, shape in surge tank 22 can be the pipeline of straight bending, also can be spirality pipeline, combustion gas is flowed into by fuel gas inlet pipe 24, interior by Hot-blast Heating at surge tank 22, do not need other heater heating, and then flow to wind combustion proportional controller 9 by gas outlet pipe 23; Wind and combustion gas are flowed out after mixing in wind combustion proportional controller 9 by a certain percentage, enter each burner 8.
The burner quantity of described shaft furnace combustion control system is 13, the quantity of wind combustion proportional controller is 4, wherein 1#, 11#, 13# burner share 1 typhoon combustion proportional controller, 2#, 4#, 5# burner share 1 typhoon combustion proportional controller, 7#, 8#, 10# burner share 1 typhoon combustion proportional controller, and 3#, 6#, 9#, 12# burner share 1 typhoon combustion proportional controller; The burner quantity of described upper and lower chute combustion control system is 8, the quantity of wind combustion proportional controller is 2, wherein go up chute 14#, 15#, 16#, the shared 1 typhoon combustion of 17# burner proportional controller, downtand 18#, 19#, 20#, 21# burner share 1 typhoon combustion proportional controller; The holding furnace combustion control system is totally 5 burners, 1 typhoon combustion proportional controller, holding furnace 22#, 23#, 24#, 25#, 26# burner share 1 typhoon combustion proportional controller, tundish, cast wheel Heats up the combustion control system be totally 3 burners, 1 wind combustion proportional controller, tundish 27#, 28# burner and cast wheel heating 29# burner share 1 typhoon combustion proportional controller; Described each parameter of shaft furnace combustion control system is set to: blower pressure 14-15KPa, 1#, 11#, 13# burner initial pressure 7-9KPa, CO4-6% (percent by volume), 2#, 4#, 5#, 7#, 8#, 10# burner initial pressure 5-10KPa, CO1-2% (percent by volume), 3#, 6#, 9#, 12# burner initial pressure 3-9KPa, CO1-2% (percent by volume); Described upper downtand combustion control system blower pressure 11-12KPa, upper chute 14#, 15#, 16#, 17# burner initial pressure 4-5KPa, CO5-7% (percent by volume), downtand 18#, 19#, 20#, 21# burner initial pressure 3-4KPa, CO6-8% (percent by volume); Described holding furnace combustion control system blower pressure 11-12KPa, 22#, 23#, 24#, 25#, 26# burner initial pressure 4-5KPa, CO4-6% (percent by volume); Described tundish, cast wheel Heats up the combustion control system fan pressure 11-12KPa, tundish combustion control system 27#, 28# burner initial pressure 4-5KPa, CO5-7% (percent by volume), the cast wheel Heats up the combustion control 29# of system burner initial pressure 3-4KPa, CO6-8% (percent by volume).
Air, combustion gas are behind wind combustion proportional controller premix, and air and combustion gas are adjusted to optimum state in 10: 1 (volume ratio) ratios automatically, and when mixed gas entered the combustion zone, atmosphere was stable, sufficient combustion, and finished product copper bar oxygen content is stable.
The present invention is compared with prior art, and is easy to operate, and atmosphere is even, sufficient combustion, and the excellent oxygen rate that contains of finished product copper bar reaches more than 75%, and product quality obviously improves.
Description of drawings
Fig. 1 is shaft furnace combustion system control chart in the prior art
Among the figure: the manual magnetic valve 5-of 1-butterfly valve 2-mixing valve 3-balanced valve 4-gate valve 6-air-supply pipeline 7-supply air line 8-burner
Fig. 2 is wind combustion proportional controller structural representation
Among the figure: 11-stop valve 12-filter 13-magnetic valve 14-motor-driven valve 15-proportioning valve 6-air-supply pipeline 7-supply air line 16-hybrid chamber 17-motor-driven valve 18-check-valves 19-gate valve
Fig. 3 is the gas heater structural representation
Among the figure: 20-hot-blast outlet pipe 21-hot blast inlet tube 22-surge tank 23-gas outlet pipe 24-fuel gas inlet pipe
Fig. 4 embodiment 1 shaft furnace combustion system control chart
Among the figure: 6-air-supply pipeline 7-supply air line 8-burner 9-wind combustion proportional controller
Downtand combustion system control chart on Fig. 5 embodiment 1
Among the figure: 6-air-supply pipeline 7-supply air line 8-burner 9-wind combustion proportional controller
Fig. 6 embodiment 1 holding furnace, tundish, cast wheel heating flame system control chart
Among the figure: 6-air-supply pipeline 7-supply air line 8-burner 9-wind combustion proportional controller
Fig. 7 embodiment 2 shaft furnace combustion system control charts
Among the figure: 6-air-supply pipeline 7-supply air line 8-burner 9-wind combustion proportional controller 10-gas heater
Downtand combustion system control chart on Fig. 8 embodiment 2
Among the figure: 6-air-supply pipeline 7-supply air line 8-burner 9-wind combustion proportional controller 10-gas heater
Fig. 9 embodiment 2 holding furnaces, tundish, cast wheel heating flame system control chart
Among the figure: 6-air-supply pipeline 7-supply air line 8-burner 9-wind combustion proportional controller 10-gas heater
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described further.
Such as Fig. 2, Fig. 4, Fig. 5, Fig. 6, a kind of low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system, by the shaft furnace combustion control system, upper downtand combustion control system, the holding furnace combustion control system, tundish combustion control system and cast wheel Heats up the combustion control system form, the each several part combustion control system comprises respectively air-supply pipeline 6, supply air line 7, burner 8, this combustion control system also comprises wind combustion proportional controller 9, described wind combustion proportional controller 9 is connected between air-supply pipeline 6 supply air lines 7 and burner 8 and with them, comprise stop valve 11, filter 12, magnetic valve 13, motor-driven valve 14, proportioning valve 15, air-supply pipeline 6, supply air line 7, hybrid chamber 16, motor-driven valve 17, check-valves 18, gate valve 19, described stop valve 11, filter 12, magnetic valve 13, motor-driven valve 14, proportioning valve 15 connects successively along fuel gas inlet direction pipeline arranges, gate valve 19, check-valves 18, motor-driven valve 17 connects successively along wind inlet direction pipeline arranges, and 15 another outlets of described proportioning valve are communicated with by the pipeline series connection and with air-supply pipeline 6 between motor-driven valve 17 and the hybrid chamber 16; Air and combustion gas are flowed out after mixing in wind combustion proportional controller 9 by a certain percentage, enter each burner 8; The burner quantity of described shaft furnace combustion control system is 13, the quantity of wind combustion proportional controller is 4, wherein 1#, 11#, 13# burner share 1 typhoon combustion proportional controller, 2#, 4#, 5# burner share 1 typhoon combustion proportional controller, 7#, 8#, 10# burner share 1 typhoon combustion proportional controller, and 3#, 6#, 9#, 12# burner share 1 typhoon combustion proportional controller; The burner quantity of described upper and lower chute combustion control system is 8, the quantity of wind combustion proportional controller is 2, wherein go up chute 14#, 15#, 16#, the shared 1 typhoon combustion of 17# burner proportional controller, downtand 18#, 19#, 20#, 21# burner share 1 typhoon combustion proportional controller; The holding furnace combustion control system is totally 5 burners, 1 typhoon combustion proportional controller, holding furnace 22#, 23#, 24#, 25#, 26# burner share 1 typhoon combustion proportional controller, tundish, cast wheel Heats up the combustion control system be totally 3 burners, 1 wind combustion proportional controller, tundish 27#, 28# burner and cast wheel heating 29# burner share 1 typhoon combustion proportional controller;
The below take produce φ 8mm low-oxygen electro with the copper cash base as example, the invention will be further described:
(1) should open blower fan before the igniting of shaft furnace combustion system and purge burner hearth 3-10 minute.
When (2) the shaft furnace combustion system is lighted a fire, go up first chute, rear some holding furnace, shaft furnace, last downtand; Should first brennschluss gas, then Wind Volume chilling shaft furnace during blowing out.
When (3) producing, at first regulate for air valve, make shaft furnace, holding furnace, upper downtand, tundish and heating cast wheel blower pressure parameter meet table 1-4.
(4) regulate the Gas mixing valve door, make 8 wind combustion proportional controller outlet pressures and mixed gas firing after the carbon monoxide content parameter meet table 1-4.
(5) each wind combustion proportional controller outlet arranges the mixed gas sampling mouth, makes gaseous mixture flow into muffle furnace, delivers to carbonyl analyzer after the burning and detects, according to the automatic or manual adjusting wind combustion of testing result proportional controller mixture ratio, until till qualified.
Table 1 shaft furnace combustion system control parameter value
Table 2 holding furnace combustion system control parameter value
Downtand combustion system control parameter value on the table 3
Table 4 tundish and heating cast wheel combustion system control parameter value
Such as Fig. 2, Fig. 3, Fig. 7, Fig. 8, Fig. 9, substantially with embodiment 1, difference is that this combustion control system also comprises gas heater 10, described gas heater 10 is connected between air-supply pipeline 6 supply air lines 7 and wind combustion proportional controller 9 and with them, comprise hot-blast outlet pipe 20, hot blast inlet tube 21, surge tank 22, gas outlet pipe 23, fuel gas inlet pipe 24, the wind that blower fan produces flows to surge tank 22 through air-supply pipeline hot blast inlet tube 21, flow to wind combustion proportional controller 9 by outlet air-supply pipeline hot-blast outlet pipe 21 again, gas supply pipeline 7 parts extend in the surge tank, shape in surge tank can be the pipeline of straight bending, combustion gas in surge tank by Hot-blast Heating, do not need other heater heating, and then flow to wind combustion proportional controller 9 by gas outlet pipe 24; Wind and combustion gas are flowed out after mixing in wind combustion proportional controller 9 by a certain percentage, enter each burner 8.
Claims (7)
1. low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system, by the shaft furnace combustion control system, upper downtand combustion control system, the holding furnace combustion control system, tundish combustion control system and cast wheel Heats up the combustion control system form, the each several part combustion control system comprises respectively air-supply pipeline (6), supply air line (7), burner (8), it is characterized in that: this combustion control system also comprises wind combustion proportional controller (9), described wind combustion proportional controller (9) is positioned between air-supply pipeline (6) supply air line (7) and the burner (8) and with them and is connected, comprise stop valve (11), filter (12), magnetic valve (13), motor-driven valve (14), proportioning valve (15), air-supply pipeline (6), supply air line (7), hybrid chamber (16), motor-driven valve (17), check-valves (18), gate valve (19), described stop valve (11), filter (12), magnetic valve (13), motor-driven valve (14), proportioning valve (15) connects successively along fuel gas inlet direction pipeline arranges, gate valve (19), check-valves (18), motor-driven valve (17) connects successively along wind inlet direction pipeline arranges, and another outlet of described proportioning valve (15) is communicated with air-supply pipeline (6) between motor-driven valve (17) and the hybrid chamber (16) by pipeline.
2. combustion control system as claimed in claim 1, it is characterized in that: this combustion control system also comprises gas heater (10), described gas heater (10) is positioned between air-supply pipeline (6) supply air line (7) and the wind combustion proportional controller (9) and with them and is connected, comprise hot-blast outlet pipe (20), hot blast inlet tube (21), surge tank (22), gas outlet pipe (23), fuel gas inlet pipe (24), the wind that blower fan produces flows to surge tank (22) through air-supply pipeline (6) hot blast inlet tube (21), flow to wind combustion proportional controller (9) by hot-blast outlet pipe (20) again, gas supply pipeline (7) part extends in the surge tank (22), combustion gas is flowed into by fuel gas inlet pipe (24), and then flows to wind combustion proportional controller (9) by gas outlet pipe (23).
3. combustion control system as claimed in claim 2 is characterized in that: the pipeline that be shaped as straight bending or the spirality pipeline of described gas supply pipeline (7) in surge tank (22).
4. combustion control system as claimed in claim 1, it is characterized in that: the burner quantity of described shaft furnace combustion control system is 13, the quantity of wind combustion proportional controller is 4, wherein 1#, 11#, 13# burner share 1 typhoon combustion proportional controller, 2#, 4#, 5# burner share 1 typhoon combustion proportional controller, 7#, 8#, 10# burner share 1 typhoon combustion proportional controller, and 3#, 6#, 9#, 12# burner share 1 typhoon combustion proportional controller; The burner quantity of described upper and lower chute combustion control system is 8, the quantity of wind combustion proportional controller is 2, wherein go up chute 14#, 15#, 16#, the shared 1 typhoon combustion of 17# burner proportional controller, downtand 18#, 19#, 20#, 21# burner share 1 typhoon combustion proportional controller; The holding furnace combustion control system is totally 5 burners, 1 typhoon combustion proportional controller, holding furnace 22#, 23#, 24#, 25#, 26# burner share 1 typhoon combustion proportional controller, tundish, cast wheel Heats up the combustion control system be totally 3 burners, 1 wind combustion proportional controller, tundish 27#, 28# burner and cast wheel heating 29# burner share 1 typhoon combustion proportional controller.
5. combustion control system as claimed in claim 4, it is characterized in that: described each parameter of shaft furnace combustion control system is set to: blower pressure 14-15 KPa, 1#, 11#, 13# burner initial pressure 7-9 KPa, CO percent by volume 4-6%, 2#, 4#, 5#, 7#, 8#, 10# burner initial pressure 5-10KPa, CO percent by volume 1-2%, 3#, 6#, 9#, 12# burner initial pressure 3-9KPa, CO percent by volume 1-2%; Described upper downtand combustion control system blower pressure 11-12 KPa, upper chute 14#, 15#, 16#, 17# burner initial pressure 4-5 KPa, CO percent by volume 5-7%, downtand 18#, 19#, 20#, 21# burner initial pressure 3-4KPa, CO percent by volume 6-8%; Described holding furnace combustion control system blower pressure 11-12 KPa, 22#, 23#, 24#, 25#, 26# burner initial pressure 4-5KPa, CO percent by volume 4-6%; Described tundish, cast wheel Heats up the combustion control system fan pressure 11-12 KPa, tundish combustion control system 27#, 28# burner initial pressure 4-5 KPa, CO percent by volume 5-7%, the cast wheel Heats up the combustion control 29# of system burner initial pressure 3-4 KPa, CO percent by volume 6-8%.
6. combustion control system as claimed in claim 2 or claim 3, it is characterized in that: the burner quantity of described shaft furnace combustion control system is 13, the quantity of wind combustion proportional controller is 4, wherein 1#, 11#, 13# burner share 1 typhoon combustion proportional controller, 2#, 4#, 5# burner share 1 typhoon combustion proportional controller, 7#, 8#, 10# burner share 1 typhoon combustion proportional controller, and 3#, 6#, 9#, 12# burner share 1 typhoon combustion proportional controller; The burner quantity of described upper and lower chute combustion control system is 8, the quantity of wind combustion proportional controller is 2, wherein go up chute 14#, 15#, 16#, the shared 1 typhoon combustion of 17# burner proportional controller, downtand 18#, 19#, 20#, 21# burner share 1 typhoon combustion proportional controller; The holding furnace combustion control system is totally 5 burners, 1 typhoon combustion proportional controller, holding furnace 22#, 23#, 24#, 25#, 26# burner share 1 typhoon combustion proportional controller, tundish, cast wheel Heats up the combustion control system be totally 3 burners, 1 wind combustion proportional controller, tundish 27#, 28# burner and cast wheel heating 29# burner share 1 typhoon combustion proportional controller.
7. combustion control system as claimed in claim 6, it is characterized in that: described each parameter of shaft furnace combustion control system is set to: blower pressure 14-15 KPa, 1#, 11#, 13# burner initial pressure 7-9 KPa, CO percent by volume 4-6%, 2#, 4#, 5#, 7#, 8#, 10# burner initial pressure 5-10KPa, CO percent by volume 1-2%, 3#, 6#, 9#, 12# burner initial pressure 3-9KPa, CO percent by volume 1-2%; Described upper downtand combustion control system blower pressure 11-12 KPa, upper chute 14#, 15#, 16#, 17# burner initial pressure 4-5 KPa, CO percent by volume 5-7%, downtand 18#, 19#, 20#, 21# burner initial pressure 3-4KPa, CO percent by volume 6-8%; Described holding furnace combustion control system blower pressure 11-12 KPa, 22#, 23#, 24#, 25#, 26# burner initial pressure 4-5KPa, CO percent by volume 4-6%; Described tundish, cast wheel Heats up the combustion control system fan pressure 11-12 KPa, tundish combustion control system 27#, 28# burner initial pressure 4-5 KPa, CO percent by volume 5-7%, the cast wheel Heats up the combustion control 29# of system burner initial pressure 3-4 KPa, CO percent by volume 6-8%.
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| CN2011101996571A CN102287850B (en) | 2011-07-15 | 2011-07-15 | Low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system |
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| CN2011101996571A CN102287850B (en) | 2011-07-15 | 2011-07-15 | Low-oxygen copper-rod continuous-casting continuous-rolling combustion-control system |
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| CN102615235B (en) * | 2012-04-23 | 2014-08-13 | 彭亦楚 | Forge heating furnace |
| CN103123116A (en) * | 2012-12-12 | 2013-05-29 | 江苏熙友磁电科技有限公司 | Combustion adjustment system of smelting furnace |
| CN103234218A (en) * | 2013-04-23 | 2013-08-07 | 台州英达机械科技有限公司 | Fuel delivering device of blast burner |
| CN110260317B (en) * | 2016-03-29 | 2021-07-30 | 芜湖美的厨卫电器制造有限公司 | Burner, gas water heater and method for heating water |
| CN105841150B (en) * | 2016-03-29 | 2019-03-12 | 芜湖美的厨卫电器制造有限公司 | Burner, gas heater and the method for heating water |
| CN106001464A (en) * | 2016-06-29 | 2016-10-12 | 安徽天大铜业有限公司 | Control method for oxygen content during production process for copper rod |
| CN109579045A (en) * | 2018-12-29 | 2019-04-05 | 佛山市旭灿科技有限公司 | A kind of burner valve block structure and its control method for aluminium melting furnace |
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| JPS596736B2 (en) * | 1978-12-28 | 1984-02-14 | 日立製線株式会社 | Continuous manufacturing method for low-oxygen copper wire |
| CN101554648B (en) * | 2009-05-19 | 2011-01-05 | 贾国荣 | Continuous casting production line of oxygen-free aluminum rod by up-draw process |
| CN201513917U (en) * | 2009-09-27 | 2010-06-23 | 安徽鑫科新材料股份有限公司 | Bright copper rod continuous casting and rolling combustion control system |
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