CN103063049A - Blowing-down and reblowing control process for annular lime kiln - Google Patents
Blowing-down and reblowing control process for annular lime kiln Download PDFInfo
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- CN103063049A CN103063049A CN2012103943821A CN201210394382A CN103063049A CN 103063049 A CN103063049 A CN 103063049A CN 2012103943821 A CN2012103943821 A CN 2012103943821A CN 201210394382 A CN201210394382 A CN 201210394382A CN 103063049 A CN103063049 A CN 103063049A
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 30
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 30
- 239000004571 lime Substances 0.000 title claims abstract description 30
- 239000007789 gas Substances 0.000 claims description 56
- 238000013016 damping Methods 0.000 claims description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 18
- 238000009792 diffusion process Methods 0.000 claims description 14
- 239000003034 coal gas Substances 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000010926 purge Methods 0.000 claims description 8
- 230000002000 scavenging effect Effects 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 4
- 230000003828 downregulation Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 101100399296 Mus musculus Lime1 gene Proteins 0.000 description 23
- 238000005516 engineering process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000005997 Calcium carbide Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a blowing-down and reblowing control process for an annular lime kiln. The blowing-down and reblowing control process comprises a blowing-down control process and a reblowing control process. Blowing-down and reblowing operations of the annular lime kiln are automatically controlled and monitored through a PLC (programmable logic controller) device, so that the control accuracy is increased, uncertainty in blowing-down and reblowing operations due to manual control can be reduced, the production efficiency is improved, requirements for labor and time on blowing-down and reblowing operations of the annular lime kiln are reduced, production costs and labor intensity of workers are effectively decreased, and production automation and humanization can be achieved.
Description
Technical field
The present invention relates to a kind of annular lime kiln control technique, particularly a kind of annular lime kiln and stop again wind control technique.
Background technology
Sleeve lime kiln is a kind of of limekiln, and it is low to have hear rate, and activity of lime is high, and is simple in structure, the characteristics that fuel tolerance is strong are compared with traditional limekiln, and lime is calcined in annular space, and air-flow is more evenly distributed, without cooling device, failure rate is low is easy to safeguard in the kiln.Be applicable to steel industry and utilize coke-stove gas and calcium carbide, chemical industry to utilize the technology such as calcium carbide stove exhaust, produce high-quality lime.Annular lime kiln the gas supply deficiency can occur in daily production process kind, needs that wherein one or many kilns are carried out the short time damping down and processes; Or because of certain device fails, need the short time damping down to overhaul; And the again again production of wind behind the damping down.Do according to present limekiln damping down, multiple character and conduct, must in control cooperatively interact with on-the-spot stoker relevant device operated, realize damping down, multiple wind.Normal damping down, multiple wind stoker personnel must 2-3 people operate simultaneously, normal operation is high to personnel's configuration requirement, particularly this point is particularly evident when needs are stopped again wind operation simultaneously to a plurality of annular lime kilns, bring certain difficulty for damping down, multiple character and conduct, simultaneously inconsistent efficient and the homework precision that also has a strong impact on damping down, multiple wind of the level of personnel operation.
Summary of the invention
For addressing the above problem, the invention discloses annular lime kiln stops again wind control technique and comprises damping down control technique and multiple wind control technique, by automatically control and the not again wind operation of monitoring annular lime kiln of PLC device, improve control accuracy and operating efficiency, reduced the requirement to personnel's configuration, operating personnel's experimental technology level and personnel labor intensity.
Annular lime kiln disclosed by the invention is stopped again wind control technique, comprise damping down control technique and multiple wind control technique, described damping down control technique comprises the steps: that a. is at first in PLC device setting operation parameter, reduce again and drive the fan frequency conversion frequency, to driving the wind decompression, after being down to 5Hz, the variable-frequency motor frequency diffuses driving wind pressure by opening driving wind diffuse channel control valve, when combustion chamber draft be lower than-during 200pa, reduce the high-temperature blower rotating speed by regulating high-temperature blower coupler aperture or frequency conversion frequency, when being lower than 550r/min, rotating speed can improve chamber pressure by the high-temperature blower throttle opening, by driving the wind diffusion valve, the high-temperature blower throttle opening, the PID of high-temperature blower rotating speed regulate make combustion chamber draft maintain all the time-200--100pa between; B. when driving wind pressure and be lower than 5kpa and namely drive wind and diffuse valve wide open, and the high-temperature blower rotating speed is lower than 550r/min, the high-temperature blower throttle opening is less than 30%, reduce the rear minimizing of each burner branch gas tube control valve opening to 5% house steward gas regulator, the fast cutting valve of gas main is closed when keeping coal gas endless tube pressure to be lower than 8kpa, and burner is flame-out; C. after burner sequentially stopped to drive blower fan, high-temperature blower in flame-out 30 seconds afterwards, close again gas main control valve and burner arm control valve, open burner scavenging air valve, gas piping nitrogen purge valve and diffusion valve; D. close out the heat exchanger exit control valve, close the high-temperature blower air door, stop kiln dedusting motor after closing kiln dedusting air door, regulate the cooling-air endless tube and diffuse valve, lower inner core cooling air delivery is controlled at 8500-9000m
3/ h; E. close the gas main gate valve, damping down is finished; Described multiple wind control technique comprises the steps: that a. answers before the wind at first in PLC device setting operation parameter, opens the gas main gate valve again; B. detecting cooling air pressure at the PLC device normally is that pressure is during greater than 2KPa, detect high-temperature blower and Lubricating-oil Station ruuning situation, when Lubricating-oil Station pressure is 200-280kpa, the high-temperature blower air door close and the coupler aperture less than 30%, the variable-frequency motor original frequency is in the 5Hz situation, opens high-temperature blower; C. by the PID of high-temperature blower air door and rotating speed is regulated, negative regulation reaches when the kiln top-1000Pa after, drive blower fan and postpone to open in 20 seconds; D. drive blower fan and arrange before unlatching and diffuse valve and be in the enable possition, drive to close after blower fan is opened and diffuse valve, monitor to drive blower pressure, after driving blower pressure and surpassing 5kpa, gas main is cut soon valve and is possessed unlocking condition; E. cut soon before valve opens at gas main, regulate high-temperature blower and drive blower fan, with lower combustion chamber's negative pressure control built between-the 150--200pa, after driving wind pressure and bringing up to 15kpa, detect upstream pressure that gas main cuts valve soon behind 8-20KPa, the house steward that turns on the gas-fire cuts valve soon; F. after gas main is cut soon valve and opened, close nitrogen purge valve, the house steward's control valve that turns on the gas-fire is controlled at coal gas endless tube pressure between the 9-20kpa; G. detect compressed air pressure, cooling scavenging air pressure greater than 2kpa after, the burner air control valve is opened to 30%, regulate cooling-air endless tube diffusion valve aperture, keep it to enter lower inner sleeve cooling air delivery at 8500-9000m
3/ h, gas regulator is opened to 30%; H. long-range burner igniting detects behind the flame automatically again wind by flame detector and finishes, and changes into simultaneously according to technological requirement under the existing output and automatically regulates coal gas, air mass flow; If i. not success of three long-range igniting in whole multiple wind process, then whole automatically again wind process end report to the police simultaneously, but the blower fan of opening continues operation, and gas main cuts soon valve and cuts out, and each burner is cut soon valve and closed.
Annular lime kiln disclosed by the invention is stopped again a kind of improvement of wind control technique, and the air door of described high-temperature blower is 1% by the adjusting stepping of PLC device control.
Annular lime kiln disclosed by the invention is stopped again wind control technique by stopping again wind operation by the PLC device according to the automatic control of parameter and monitoring annular lime kiln that need of production sets in advance, not only improved control accuracy, reduced to stop the uncertainty of manual control in the again wind operation, improve the efficient of producing, what also help the reduction annular lime kiln stops again wind operation to the requirement of manpower and time, thereby effectively reduced the intensity of production cost and personnel work, realized automation and the hommization of producing.
Description of drawings
Fig. 1, annular lime kiln disclosed by the invention are stopped again the damping down control process chart of wind control technique;
Fig. 2, annular lime kiln disclosed by the invention are stopped again the multiple wind control process chart of wind control technique;
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand the following specific embodiment and only be used for explanation the present invention and be not used in and limit the scope of the invention.
Extremely shown in Figure 2 such as Fig. 1, annular lime kiln disclosed by the invention is stopped again wind control technique, comprise damping down control technique and multiple wind control technique, described damping down control technique comprises the steps: that a. is at first in PLC device setting operation parameter, reduce again and drive the fan frequency conversion frequency, to driving the wind decompression, after being down to 5Hz, the variable-frequency motor frequency diffuses driving wind pressure by opening driving wind diffuse channel control valve, when combustion chamber draft be lower than-during 200pa, reduce the high-temperature blower rotating speed by regulating high-temperature blower coupler aperture or frequency conversion frequency, when being lower than 550r/min, rotating speed can improve chamber pressure by the high-temperature blower throttle opening, by driving the wind diffusion valve, the high-temperature blower throttle opening, the PID of high-temperature blower rotating speed regulate make combustion chamber draft maintain all the time-200--100pa between; B. when driving wind pressure and be lower than 5kpa and namely drive wind and diffuse valve wide open, and the high-temperature blower rotating speed is lower than 550r/min, the high-temperature blower throttle opening is less than 30%, reduce the rear minimizing of each burner branch gas tube control valve opening to 5% house steward gas regulator, the fast cutting valve of gas main is closed when keeping coal gas endless tube pressure to be lower than 8kpa, and burner is flame-out; C. after burner sequentially stopped to drive blower fan, high-temperature blower in flame-out 30 seconds afterwards, close again gas main control valve and burner arm control valve, open burner scavenging air valve, gas piping nitrogen purge valve and diffusion valve; D. close out the heat exchanger exit control valve, close the high-temperature blower air door, stop kiln dedusting motor after closing kiln dedusting air door, regulate the cooling-air endless tube and diffuse valve, lower inner core cooling air delivery is controlled at 8500-9000m
3/ h; E. close the gas main gate valve, damping down is finished; Described multiple wind control technique comprises the steps: that a. answers before the wind at first in PLC device setting operation parameter, opens the gas main gate valve again; B. detecting cooling air pressure at the PLC device normally is that pressure is during greater than 2KPa, detect high-temperature blower and Lubricating-oil Station ruuning situation, when Lubricating-oil Station pressure is 200-280kpa, the high-temperature blower air door close and the coupler aperture less than 30%, the variable-frequency motor original frequency is in the 5Hz situation, opens high-temperature blower; C. by the PID of high-temperature blower air door and rotating speed is regulated, negative regulation reaches when the kiln top-1000Pa after, drive blower fan and postpone to open in 20 seconds; D. drive blower fan and arrange before unlatching and diffuse valve and be in the enable possition, drive to close after blower fan is opened and diffuse valve, monitor to drive blower pressure, after driving blower pressure and surpassing 5kpa, gas main is cut soon valve and is possessed unlocking condition; E. cut soon before valve opens at gas main, regulate high-temperature blower and drive blower fan, with lower combustion chamber's negative pressure control built between-the 150--200pa, after driving wind pressure and bringing up to 15kpa, detect upstream pressure that gas main cuts valve soon behind 8-20KPa, the house steward that turns on the gas-fire cuts valve soon; F. after gas main is cut soon valve and opened, close nitrogen purge valve, the house steward's control valve that turns on the gas-fire is controlled at coal gas endless tube pressure between the 9-20kpa; G. detect compressed air pressure, cooling scavenging air pressure greater than 2kpa after, the burner air control valve is opened to 30%, regulate cooling-air endless tube diffusion valve aperture, keep it to enter lower inner sleeve cooling air delivery at 8500-9000m
3/ h, gas regulator is opened to 30%; H. long-range burner igniting detects behind the flame automatically again wind by flame detector and finishes, and changes into simultaneously according to technological requirement under the existing output and automatically regulates coal gas, air mass flow; If i. not success of three long-range igniting in whole multiple wind process, then whole automatically again wind process end report to the police simultaneously, but the blower fan of opening continues operation, and gas main cuts soon valve and cuts out, and each burner is cut soon valve and closed.
As a kind of preferred, the air door of described high-temperature blower is 1% by the adjusting stepping of PLC device control.
Specific embodiment
1, equipment requirement:
(1) high-temperature blower: can long-distance centralized control, can regulate the high-temperature blower rotating speed by coupler aperture or frequency conversion parameter; Throttle opening can Long-distance Control, and feedback signal is arranged, and regulating the step footpath is 1%; Lubricating-oil Station operation is remote controlled, and run signal and pressure signal have feedback.
(2) drive blower fan: can drive wind pressure by regulating the variable-frequency motor frequency adjustment; The wind of driving diffusion valve is arranged, remote controlled valve opening; Drive wind pressure feedback is arranged.
(3) burner: burner can light a fire, extinguish by long-range; Gas main is cut valve and coal gas endless tube pressure interlock soon; Each burner branch gas tube control valve energy operated from a distance; The gas piping nitrogen blowing can be realized by the remote opening valve.
(4) above equipment comprises that high-temperature blower and related coupler, air door, Lubricating-oil Station, driving blower fan and variable-frequency motor, diffusion valve and gas main thereof cut soon valve and all implement to connect control by the PLC device, before beginning, operation realizes an automatic key control of annular lime kiln damping down, multiple wind according to the actual needs setup control parameter of producing, the minimizing uncertainty that manual operation brings in damping down, multiple wind process, reduction personnel's labour intensity is raised labour efficiency.
2, technique implementation explanation
The explanation of (1) one key damping down technique implementation:
A. click a key damping down button, to at first driving the fan frequency conversion frequency by reducing, to driving the wind decompression, after being down to 5Hz, the variable-frequency motor frequency diffuses driving wind pressure by opening driving wind diffuse channel control valve, when combustion chamber draft be lower than-during 200pa, reduce the high-temperature blower rotating speed by regulating high-temperature blower coupler aperture or frequency conversion frequency, when being lower than 550r/min, rotating speed can improve chamber pressure by the high-temperature blower throttle opening, by driving the wind diffusion valve, the high-temperature blower throttle opening, the PID of high-temperature blower rotating speed regulate make combustion chamber draft maintain all the time-200--100pa between;
B. when the driving wind pressure is lower than 5kpa (drive wind and diffuse valve wide open this moment), and the high-temperature blower rotating speed is lower than 550r/min, the high-temperature blower throttle opening is less than 30%, reduce each burner branch gas tube control valve opening, be down to 5% rear minimizing house steward gas regulator, the fast cutting valve autoshutdown of gas main when keeping coal gas endless tube pressure to be lower than 8kpa, the burner auto extinguishing;
C. after flame-out rear 30 seconds orders of burner stop to drive blower fan, high-temperature blower, close gas main control valve and burner arm control valve, open burner scavenging air valve, pipeline nitrogen purge valve and diffusion valve automatically turn on the gas-fire;
D. close out the heat exchanger exit control valve, close the high-temperature blower air door, stop kiln dedusting motor after closing kiln dedusting air door, regulate the cooling-air endless tube and diffuse valve, lower inner core cooling air delivery is controlled at 8500-9000m3/h,
E. the stoker closes the gas main gate valve to on-the-spot, and damping down is finished.
The multiple wind process implementation explanation of (2) one keys
A. the front stoker of wind at first opens gate valve on the gas main to on-the-spot again, and this multiple wind process is only for the multiple wind behind the damping down in the production process, so cooling blower is in normal operating condition;
B. detect cooling air pressure when normal in program, detect high-temperature blower Lubricating-oil Station ruuning situation, pressure normally namely in the 200-280kpa scope is when rare station, close at the high-temperature blower air door that (the coupler aperture is less than 30%, variable-frequency motor frequency original frequency is 5Hz) in the situation, open high-temperature blower;
C. by the PID of high-temperature blower air door and rotating speed being regulated (variable-frequency motor can directly air door be reached 100% after, come adjusting rotary speed by regulating frequency), negative regulation reaches when the kiln top-1000Pa after, drive blower fan and postpone automatically to open in 20 seconds;
D. drive blower fan and must guarantee that before unlatching it diffuses valve and is in the enable possition, close it after the driving blower fan is opened and diffuse valve, monitor to drive blower pressure, when driving blower pressure above behind the 5kpa, gas main is cut soon valve and is possessed unlocking condition;
E. cut soon before valve opens at gas main, for guaranteeing that igniting carries out smoothly, this moment, the high-temperature blower rotating speed was the control point with driving the following combustion chamber draft of blower fan, with lower combustion chamber's negative pressure control built between-the 150--200pa, after the driving wind pressure was brought up to 15kpa, the house steward that turns on the gas-fire cut valve soon;
F. after gas main is cut soon valve and opened, close nitrogen purge valve, the house steward's control valve that turns on the gas-fire is controlled at coal gas endless tube pressure between the 9-20kpa;
G. detect compressed air pressure, cooling scavenging air pressure normally namely greater than behind the 2kpa, the burner air control valve is opened to 30%, regulate cooling-air endless tube diffusion valve aperture, keep it to enter lower inner sleeve cooling air delivery at 8500-9000m3/h, gas regulator is opened to 30%;
H. long-range burner igniting detects behind the flame automatically again wind by flame detector and finishes, and changes into simultaneously according to technological requirement under the existing output and automatically regulates coal gas, air mass flow;
If i. not success of three long-range igniting in whole multiple wind process, then whole automatically again wind process end report to the police simultaneously, but the blower fan of opening continues operation, and gas main cuts soon valve and cuts out, and each burner is cut soon valve and closed.
3, automatic programming
According to the technological requirement programming, all automatic controls all have the PLC device to realize.
Annular lime kiln disclosed by the invention is stopped again wind control technique by stopping again wind operation by the PLC device according to the automatic control of parameter and monitoring annular lime kiln that need of production sets in advance, not only improved control accuracy, reduced to stop the uncertainty of manual control in the again wind operation, improve the efficient of producing, what also help the reduction annular lime kiln stops again wind operation to the requirement of manpower and time, thereby effectively reduced the intensity of production cost and personnel work, automation and the hommization of producing have been realized, by a key control, realize damping down, the automatic control of multiple wind, minimizing is at damping down, the uncertainty that manual operation brings in the multiple wind process, reduction personnel's labour intensity is raised labour efficiency.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technical scheme that is comprised of above technical characterictic any combination.The above is the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (2)
1. an annular lime kiln is stopped again wind control technique, it is characterized in that: described annular lime kiln is stopped again wind control technique and is comprised damping down control technique and multiple wind control technique, described damping down control technique comprises the steps: that a. is at first in PLC device setting operation parameter, reduce again and drive the fan frequency conversion frequency, to driving the wind decompression, after being down to 5Hz, the variable-frequency motor frequency diffuses driving wind pressure by opening driving wind diffuse channel control valve, when combustion chamber draft be lower than-during 200pa, reduce the high-temperature blower rotating speed by regulating high-temperature blower coupler aperture or frequency conversion frequency, when being lower than 550r/min, rotating speed can improve chamber pressure by the high-temperature blower throttle opening, by driving the wind diffusion valve, the high-temperature blower throttle opening, the PID of high-temperature blower rotating speed regulate make combustion chamber draft maintain all the time-200--100pa between; B. when driving wind pressure and be lower than 5kpa and namely drive wind and diffuse valve wide open, and the high-temperature blower rotating speed is lower than 550r/min, the high-temperature blower throttle opening is less than 30%, reduce the rear minimizing of each burner branch gas tube control valve opening to 5% house steward gas regulator, the fast cutting valve of gas main is closed when keeping coal gas endless tube pressure to be lower than 8kpa, and burner is flame-out; C. after burner sequentially stopped to drive blower fan, high-temperature blower in flame-out 30 seconds afterwards, close again gas main control valve and burner arm control valve, open burner scavenging air valve, gas piping nitrogen purge valve and diffusion valve; D. close out the heat exchanger exit control valve, close the high-temperature blower air door, stop kiln dedusting motor after closing kiln dedusting air door, regulate the cooling-air endless tube and diffuse valve, lower inner core cooling air delivery is controlled at 8500-9000m
3/ h; E. close the gas main gate valve, damping down is finished; Described multiple wind control technique comprises the steps: that a. answers before the wind at first in PLC device setting operation parameter, opens the gas main gate valve again; B. detecting cooling air pressure at the PLC device normally is that pressure is during greater than 2KPa, detect high-temperature blower and Lubricating-oil Station ruuning situation, when Lubricating-oil Station pressure is 200-280kpa, the high-temperature blower air door close and the coupler aperture less than 30%, the variable-frequency motor original frequency is in the 5Hz situation, opens high-temperature blower; C. by the PID of high-temperature blower air door and rotating speed is regulated, negative regulation reaches when the kiln top-1000Pa after, drive blower fan and postpone to open in 20 seconds; D. drive blower fan and arrange before unlatching and diffuse valve and be in the enable possition, drive to close after blower fan is opened and diffuse valve, monitor to drive blower pressure, after driving blower pressure and surpassing 5kpa, gas main is cut soon valve and is possessed unlocking condition; E. cut soon before valve opens at gas main, regulate high-temperature blower and drive blower fan, with lower combustion chamber's negative pressure control built between-the 150--200pa, after driving wind pressure and bringing up to 15kpa, detect upstream pressure that gas main cuts valve soon behind 8-20KPa, the house steward that turns on the gas-fire cuts valve soon; F. after gas main is cut soon valve and opened, close nitrogen purge valve, the house steward's control valve that turns on the gas-fire is controlled at coal gas endless tube pressure between the 9-20kpa; G. detect compressed air pressure, cooling scavenging air pressure greater than 2kpa after, the burner air control valve is opened to 30%, regulate cooling-air endless tube diffusion valve aperture, keep it to enter lower inner sleeve cooling air delivery at 8500-9000m
3/ h, gas regulator is opened to 30%; H. long-range burner igniting detects behind the flame automatically again wind by flame detector and finishes, and changes into simultaneously according to technological requirement under the existing output and automatically regulates coal gas, air mass flow; If i. not success of three long-range igniting in whole multiple wind process, then whole automatically again wind process end report to the police simultaneously, but the blower fan of opening continues operation, and gas main cuts soon valve and cuts out, and each burner is cut soon valve and closed.
2. annular lime kiln according to claim 1 is stopped again wind control technique, it is characterized in that: the air door of described high-temperature blower is 1% by the adjusting stepping of PLC device control.
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| CN104880094A (en) * | 2015-05-20 | 2015-09-02 | 南京梅山冶金发展有限公司 | Annular shaft lime kiln blast delay and recovery control method |
| CN108072271A (en) * | 2016-11-07 | 2018-05-25 | 南京梅山冶金发展有限公司 | A kind of annular lime kiln automaton and control method based on heat consumption |
| CN111947449A (en) * | 2020-08-19 | 2020-11-17 | 广东韶钢松山股份有限公司 | Gas-fired shaft kiln damping-down and reblowing system and control method |
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| CN103664009A (en) * | 2013-11-29 | 2014-03-26 | 南京梅山冶金发展有限公司 | Shutdown cooling method for annular sleeve kiln |
| CN103664009B (en) * | 2013-11-29 | 2015-07-22 | 南京梅山冶金发展有限公司 | Shutdown cooling method for annular sleeve kiln |
| CN104880094A (en) * | 2015-05-20 | 2015-09-02 | 南京梅山冶金发展有限公司 | Annular shaft lime kiln blast delay and recovery control method |
| CN108072271A (en) * | 2016-11-07 | 2018-05-25 | 南京梅山冶金发展有限公司 | A kind of annular lime kiln automaton and control method based on heat consumption |
| CN111947449A (en) * | 2020-08-19 | 2020-11-17 | 广东韶钢松山股份有限公司 | Gas-fired shaft kiln damping-down and reblowing system and control method |
| CN111947449B (en) * | 2020-08-19 | 2023-02-03 | 广东韶钢松山股份有限公司 | Gas-fired shaft kiln damping-down and reblowing system and control method |
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