CN103234340A - Control method and device of tobacco pneumatic drying air-heating furnace - Google Patents
Control method and device of tobacco pneumatic drying air-heating furnace Download PDFInfo
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- CN103234340A CN103234340A CN2013101378677A CN201310137867A CN103234340A CN 103234340 A CN103234340 A CN 103234340A CN 2013101378677 A CN2013101378677 A CN 2013101378677A CN 201310137867 A CN201310137867 A CN 201310137867A CN 103234340 A CN103234340 A CN 103234340A
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- air distribution
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- blast stove
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Abstract
The invention discloses a control method and device of a tobacco pneumatic drying air-heating furnace. A CO detector (5) and an O2 detector (6) are installed on a flue gas discharging pipe (7) of the pneumatic drying air-heating furnace (4), an air distribution air door (1) is installed on an air distribution pipeline (8), and a control system is electrically connected with the CO detector (5), the O2 detector (6) and the air distribution air door (1) to establish interlocking control relation. The CO content and the O2 content in flue gas after combustion are adjusted by changing the opening degree of the air distribution air door by means of the control method. By means of the control method and device, combustion control of the tobacco pneumatic drying air-heating furnace can be achieved, accordingly emission of the combustion flue gas is effectively controlled, and energy consumption of the air-heating furnace is reduced. The device is simple in structure and reliable in operation.
Description
Technical field
The present invention relates to a kind of control method of tobacco gas fluidized drying hot-blast stove, the invention still further relates to the device of this method of realization.
Background technology
Tobacco drying is that tobacco is processed indispensable link, particularly tobacco gas fluidized drying system generally adopts hot-blast stove to come the heating process air-flow, the energy consumption that needs is bigger, hot-blast stove generally adopts combustor to come combustion fuel, the proportioning of fuel and air is carried out proportioning by mechanical device, because several power points were once set up and only set up to combustor when putting into operation air distribution ratio, and the frequent changes always of the demand power in the production process, combustion position can not determine and can't adjust automatically, thereby influences the environmental protection of system energy consumption and discharging.
The index of hot-blast stove fume generally detects in factory behind hot-blast stove operation some cycles, according to the fume indication situation wind/fuel ratio of combustor is carried out the adjustment of mechanical aspects again, and the adjustment process time is long, technical sophistication.
Summary of the invention
First technical problem to be solved by this invention provides a kind of control method that can carry out self-adjusting tobacco gas fluidized drying hot-blast stove according to the fume indication situation to the wind/fuel ratio of combustor.
Second technical problem that the present invention solves provides a kind of simple in structure, device that the control method of this tobacco gas fluidized drying hot-blast stove is realized on dependable performance ground.
For solving above-mentioned first technical problem, the control method of the tobacco gas fluidized drying hot-blast stove that the present invention adopts is equipped with the CO detector at the smoke exhaust pipe of pneumatic conveying drying hot-blast stove and detects CO content and O
2Detector detects O
2Content is equipped with the air distribution air door at the air distribution pipeline, by control system the CO detector is detected CO content and O
2Detector detects O
2The air distribution air door of installing on content and the air distribution pipeline is set up chain control relation, adopts change air distribution throttle opening to come regulating system burning back CO content in smoke and O
2Content.
Concrete steps are: the threshold limit value COmax of CO content at first is set, O
2The peak of content and minimum O
2Max, O
2Min, in the process if CO＜COmax and O
2Max＞O
2＞O
2Min then air distribution air door keeps aperture and does not change; If CO＜COmax and O
2＞O
2Max or O
2＜O
2Min then continues to turn down or open big air distribution air door, regulates until CO=COmax then stops the air distribution air door; If CO＞COmax and O
2＞O
2Max or O
2＜O
2Min then continues to turn down or open big air distribution air door, regulates until CO=COmax then stops the air distribution air door; If CO＞COmax and O
2Max＞O
2＞O
2Min then sends the equipment fault alarm.
For solving above-mentioned second technical problem, the device of the control method of the realization tobacco gas fluidized drying hot-blast stove that the present invention adopts, the air distribution pipeline, air distribution blower fan and the smoke exhaust pipe that comprise the pneumatic conveying drying hot-blast stove and be installed in the pneumatic conveying drying hot-blast stove are equipped with CO detector and O at the smoke exhaust pipe of described pneumatic conveying drying hot-blast stove
2Detector is equipped with the air distribution air door at described air distribution pipeline, control system and described CO detector, O
2Detector and air distribution air door adopt the chain control relation of setting up that is electrically connected.
Adopt control method and the device of the tobacco gas fluidized drying hot-blast stove of technique scheme, tobacco gas fluidized drying hot-blast stove is realized burning control, thereby effectively control discharging, the saving hot-blast stove energy consumption of combustion product gases.Apparatus structure is simple, and is reliable.
When the power demand of hot-blast stove changes, fuel control valve 2 will be operated in diverse location, detect CO content in smoke and O by the CO detector
2Detector detects O in the flue gas
2Content is regulated the air distribution throttle opening according to method of the present invention and is come regulating system burning back CO content in smoke and O
2Content makes pneumatic conveying drying hot-blast stove discharged flue gas CO content all the time near the COmax of the permission that arranges, and makes pneumatic conveying drying hot-blast stove air distribution gas fume after burning O simultaneously
2Content has guaranteed the abundant degree of burning all the time at tolerance band, has saved energy consumption.
The present invention has overcome wind/fuel ratio that the pneumatic conveying drying hot-blast stove relied on the disposable configuration of combustor mechanical device several power points originally, expand the combustor total travel greatly and carried out the function of wind/fuel automatic mixing, and all test points and actuator be access control system and computer all, is convenient to the inspection of operating mode.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1-air distribution air door; 2-fuel control valve; 3-air distribution blower fan; 4-hot-blast stove; 5-CO detector; 6-O
2Detector; The 7-smoke exhaust pipe; 8-air distribution pipeline.
The specific embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the pneumatic conveying drying hot-blast stove 4 of Pneumatic drying device is equipped with fuel control valve 2, air distribution pipeline 8, air distribution blower fan 3 and smoke exhaust pipe 7, at the smoke exhaust pipe 7 of pneumatic conveying drying hot-blast stove 4 CO detector 5 and O is installed
2 Detector 6 is equipped with air distribution air door 1 at air distribution pipeline 8, control system and CO detector 5, O
2Detector 6 and air distribution air door 1 adopt the chain control relation of setting up that is electrically connected.
Referring to Fig. 1, the pneumatic conveying drying hot-blast stove 4 of Pneumatic drying device is when different power demands, and fuel control valve 2 will be in different positions, on the smoke exhaust pipe 7 of pneumatic conveying drying hot-blast stove 4 CO detector 5 and O are installed
2 Detector 6 is according to CO detector 5 and O
2The index that detector 6 detects compares with the value of setting of control system, further regulates the aperture of the preceding air distribution air door 1 of air distribution blower fan 3, makes CO detector 5 and O
2In the index that detector 6 detects falls back between the setting area.
Referring to Fig. 1, the threshold limit value COmax of CO content at first is set, O
2The peak of content and minimum O
2Max, O
2Min, in the process if CO＜COmax and O
2Max＞O
2＞O
2Min then air distribution air door 1 keeps aperture and does not change; If CO＜COmax and O
2＞O
2Max or O
2＜O
2Min then continues to turn down or open big air distribution air door 1, regulates until CO=COmax then stops air distribution air door 1; If CO＞COmax and O
2＞O
2Max or O
2＜O
2Min then continues to turn down or open big air distribution air door 1, regulates until CO=COmax then stops air distribution air door 1; If CO＞COmax and O
2Max＞O
2＞O
2Min then sends the equipment fault alarm.
Claims (3)
1. the control method of a tobacco gas fluidized drying hot-blast stove is characterized in that: at the smoke exhaust pipe of pneumatic conveying drying hot-blast stove the CO detector is installed and detects CO content and O
2Detector detects O
2Content is equipped with the air distribution air door at the air distribution pipeline, by control system the CO detector is detected CO content and O
2Detector detects O
2The air distribution air door of installing on content and the air distribution pipeline is set up chain control relation, adopts change air distribution throttle opening to come regulating system burning back CO content in smoke and O
2Content.
2. the control method of tobacco gas fluidized drying hot-blast stove according to claim 1, it is characterized in that: concrete steps are: the threshold limit value COmax of CO content at first is set, O
2The peak of content and minimum O
2Max, O
2Min, in the process if CO＜COmax and O
2Max＞O
2＞O
2Min then air distribution air door keeps aperture and does not change; If CO＜COmax and O
2＞O
2Max or O
2＜O
2Min then continues to turn down or open big air distribution air door, regulates until CO=COmax then stops the air distribution air door; If CO＞COmax and O
2＞O
2Max or O
2＜O
2Min then continues to turn down or open big air distribution air door, regulates until CO=COmax then stops the air distribution air door; If CO＞COmax and O
2Max＞O
2＞O
2Min then sends the equipment fault alarm.
3. realize the device of the control method of the described tobacco gas fluidized drying of claim 1 hot-blast stove, the air distribution pipeline (8), air distribution blower fan (3) and the smoke exhaust pipe (7) that comprise pneumatic conveying drying hot-blast stove (4) and be installed in pneumatic conveying drying hot-blast stove (4) is characterized in that: the smoke exhaust pipe (7) at described pneumatic conveying drying hot-blast stove (4) is equipped with CO detector (5) and O
2Detector (6) is equipped with air distribution air door (1) at described air distribution pipeline (8), control system and described CO detector (5), O
2Detector (6) and air distribution air door (1) adopt the chain control relation of setting up that is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101378677A CN103234340A (en) | 2013-04-19 | 2013-04-19 | Control method and device of tobacco pneumatic drying air-heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101378677A CN103234340A (en) | 2013-04-19 | 2013-04-19 | Control method and device of tobacco pneumatic drying air-heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103234340A true CN103234340A (en) | 2013-08-07 |
Family
ID=48882392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101378677A Pending CN103234340A (en) | 2013-04-19 | 2013-04-19 | Control method and device of tobacco pneumatic drying air-heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103234340A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438687A (en) * | 2013-08-09 | 2013-12-11 | 黄石市建材节能设备总厂 | Explosion-proof safe energy-saving and emission-reducing fluidization oxygen-controlling drying system |
| CN104456946A (en) * | 2014-11-05 | 2015-03-25 | 广东生益科技股份有限公司 | Heat conduction oil furnace and control method thereof |
| CN106440346A (en) * | 2016-11-08 | 2017-02-22 | 无锡市全顺机械制造有限公司 | Natural gas combustion furnace structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140147Y (en) * | 1992-05-12 | 1993-08-18 | 王继春 | Fodder air drying apparatus |
| US5392312A (en) * | 1992-03-16 | 1995-02-21 | Unimetal Societe Francaise Des Aciers Longs | Method and device for regulating the combustion air flow rate of a flue rate gas collection device of a metallurgical reactor, corresponding collection device and metallurgical reactor |
| JP3080009B2 (en) * | 1996-09-26 | 2000-08-21 | トヨタ自動車株式会社 | Burner combustion control method and apparatus using oxygen sensor |
| CN101839630A (en) * | 2009-03-16 | 2010-09-22 | 北京华邦天控科技发展有限公司 | Control system and method of baking furnace |
| CN202082951U (en) * | 2011-05-06 | 2011-12-21 | 广东万方意高能源设备有限公司 | Air/fuel ratio full ratio adjustable burner |
| CN102506592A (en) * | 2011-11-17 | 2012-06-20 | 中国石油化工股份有限公司 | Portable regulator for automatically testing efficiency of heating furnace |
| CN102654286A (en) * | 2012-05-18 | 2012-09-05 | 无锡龙山科技有限公司 | Intelligent dynamic combustion atmosphere controller |
-
2013
- 2013-04-19 CN CN2013101378677A patent/CN103234340A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5392312A (en) * | 1992-03-16 | 1995-02-21 | Unimetal Societe Francaise Des Aciers Longs | Method and device for regulating the combustion air flow rate of a flue rate gas collection device of a metallurgical reactor, corresponding collection device and metallurgical reactor |
| CN2140147Y (en) * | 1992-05-12 | 1993-08-18 | 王继春 | Fodder air drying apparatus |
| JP3080009B2 (en) * | 1996-09-26 | 2000-08-21 | トヨタ自動車株式会社 | Burner combustion control method and apparatus using oxygen sensor |
| CN101839630A (en) * | 2009-03-16 | 2010-09-22 | 北京华邦天控科技发展有限公司 | Control system and method of baking furnace |
| CN202082951U (en) * | 2011-05-06 | 2011-12-21 | 广东万方意高能源设备有限公司 | Air/fuel ratio full ratio adjustable burner |
| CN102506592A (en) * | 2011-11-17 | 2012-06-20 | 中国石油化工股份有限公司 | Portable regulator for automatically testing efficiency of heating furnace |
| CN102654286A (en) * | 2012-05-18 | 2012-09-05 | 无锡龙山科技有限公司 | Intelligent dynamic combustion atmosphere controller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438687A (en) * | 2013-08-09 | 2013-12-11 | 黄石市建材节能设备总厂 | Explosion-proof safe energy-saving and emission-reducing fluidization oxygen-controlling drying system |
| CN104456946A (en) * | 2014-11-05 | 2015-03-25 | 广东生益科技股份有限公司 | Heat conduction oil furnace and control method thereof |
| CN106440346A (en) * | 2016-11-08 | 2017-02-22 | 无锡市全顺机械制造有限公司 | Natural gas combustion furnace structure |
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Application publication date: 20130807 |