CN104197336A - Burning control method for waste incineration - Google Patents
Burning control method for waste incineration Download PDFInfo
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- CN104197336A CN104197336A CN201410480458.1A CN201410480458A CN104197336A CN 104197336 A CN104197336 A CN 104197336A CN 201410480458 A CN201410480458 A CN 201410480458A CN 104197336 A CN104197336 A CN 104197336A
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- air feed
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Abstract
The invention belongs to the technical field of waste treatment and particularly relates to a burning control method for waste incineration. In an incinerator, an air supply monitoring sensor is mounted on a smoke pipeline which is between a smoke outlet of a second burning chamber and an induced draft fan, content of the corresponding gas in the smoke is detected by the air supply monitoring sensor, and the air supply is controlled according to a content index of the gas, and meanwhile the induced draft fan is controlled according to a negative pressure value. By the use of the burning control method, incineration effect of waste is excellent, and air supply is accurately monitored.
Description
Technical field
The invention belongs to the technical field of garbage disposal, be specifically related to the method for controlling combustion in a kind of incineration treatment of garbage.
Background technology
House refuse and medical waste are not only destroyed the ecological environment in city, also the health of human body are caused to serious harm, so the harmless problem demanding prompt solution that is treated as of Biohazard Waste.The processing of rubbish at present mainly adopts incineration technology or technique to dispose.
Marrow for burning process is control combustion, and the air feed for incineration firing is only to rely on air-introduced machine to form negative pressure to incinerator at present, and cannot control accurately air feed opportunity and wind supply quantity, if air feed is too much, reduce temperature, affect the decomposition of rubbish, and the load of blower fan is excessive; If air feed is not enough, waste incineration is insufficient, produces a large amount of black smokes, serious environment pollution.
As can be seen here, technical problem at present urgently to be resolved hurrily is for how to control accurately air feed, and then control combustion, obtains the method for controlling combustion in a kind of incineration treatment of garbage, can precisely control air feed, thereby reach, the burning of rubbish is controlled.
Summary of the invention
The object of the invention is to exist and cannot control according to burning degree the problem of air feed for current waste incineration, and provide the method for controlling combustion in a kind of incineration treatment of garbage, method for controlling combustion in this incineration treatment of garbage to the incineration disposal effect of rubbish more, can be monitored wind supply quantity accurately.
Technical scheme of the present invention is: the method for controlling combustion in a kind of incineration treatment of garbage, on the exhanst gas outlet of set the second combustion chamber of incinerator and the flue between air-introduced machine, air feed monitoring sensor is installed, by this air feed monitoring sensor, detect the content of corresponding gas in flue gas, according to the index of this gas content, control air feed, simultaneously the scope internal control making blower fan at-1000～-100 handkerchiefs according to negative pressure value.
Described air feed monitoring sensor is lambda sensor.Lambda sensor can Real-Time Monitoring flue gas in the content of oxygen, utilize the air door folding degree of the index control secondary air feed of oxygen content in flue gas, regulate the air quantity of secondary air feed, realize air feed is monitored and reported to the police, the monitoring by air feed further can reach control feed.
By described lambda sensor, detect the content of oxygen in flue gas, controlling air feed, to make oxygen content that lambda sensor detects remain on volume fraction be 5～14%.
Described air feed monitoring sensor is carbon monoxide transducer.Carbon monoxide transducer can Real-Time Monitoring flue gas in the content of carbon monoxide, utilize the index of oxygen content in flue gas or carbon monoxide content air feed is monitored and reported to the police, the monitoring by air feed further can reach control feed.
Described incinerator comprises body of heater, and the front end of body of heater is respectively equipped with the air door of an air feed and the air door of secondary air feed; The top of this body of heater one side is provided with dog-house; In body of heater, by furnace wall, be arranged with the first combustion chamber and the second combustion chamber, wherein the first combustion chamber is positioned at a side of the second combustion chamber, and furnace wall is heat conducting wall; The first combustion chamber is connected by set cinder chamber with the bottom of the second combustion chamber; The top of the second combustion chamber is provided with exhanst gas outlet, and this exhanst gas outlet is connected with air-introduced machine by flue, and described the first combustion chamber is up-down structure.
Described heat conducting wall is heat-conduction wall.
Its material of described heat-conduction wall is high-alumina brick or carborundum.
Described the first combustion chamber is divided into the up-down structure of combustion zone, top and combustion zone, bottom by upper fire-grating and lower fire grating, such design makes rubbish obtain thoroughly effectively burning.。
The air door of a described air feed is arranged with two, is all positioned at the top of upper fire-grating; The air door of secondary air feed is arranged with two, all between upper fire-grating and lower fire grating.
The top of described lower fire grating is arranged with two breast holes, and this breast hole is positioned at the air door below of secondary air feed.
Beneficial effect of the present invention is: the method for controlling combustion in incineration treatment of garbage of the present invention can be by the content of oxygen content or carbon monoxide in air feed monitoring sensor monitoring flue gas, and then the air feed situation of the first combustion chamber is carried out to overall monitor, realize the reasonable control to feed.When air feed is excessive, alert notice staff can accelerate feed; When air feed is not enough, staff can reduce feed accordingly, and stoker is ventilated stove.This method for controlling combustion has been strengthened the burning of rubbish by monitoring flue gas quality.Therefore by accurate air feed, prevent air excess and reduced the combustion-supporting cost of need of ignition temperature, saved blower fan power consumption; Effectively prevent that air excess is with not enough, fume emission reliable in quality is stable.
In sum, the method for controlling combustion in incineration treatment of garbage of the present invention to the incineration disposal effect of rubbish more, can be monitored wind supply quantity accurately.
Accompanying drawing explanation
Fig. 1 is the front view of incinerator in the specific embodiment of the invention.
Fig. 2 is the left view of incinerator in the specific embodiment of the invention.
Wherein, 1 is body of heater, and 2 is dog-house, and 3 is furnace wall, 4 is cinder chamber, and 5 is exhanst gas outlet, and 6 is flue, 7 is air-introduced machine, and 8 is the air door of an air feed, and 9 is the air door of secondary air feed, 10 is lambda sensor, and 11 for locking a door, and 12 is upper fire-grating, 13 is lower fire grating, and 14 is lime charging aperture, and 15 is lime bin, 16 is the first combustion chamber, and 17 is the second combustion chamber, and 18 is breast hole.
The specific embodiment
Below by the specific embodiment, the present invention will be described in detail.
A method for controlling combustion in incineration treatment of garbage is provided with lambda sensor 10 on the exhanst gas outlet 5 of set the second combustion chamber 17 of incinerator and the flue 6 between air-introduced machine 7, detects the content of oxygen in flue gases by this lambda sensor 10,
According to the index of this gas content, control the air door folding degree of secondary air feed, regulate the air quantity of secondary air feed, it is 5～13% that the oxygen content that realization control air feed detects lambda sensor 10 remains on volume fraction.While is the scope internal control making blower fan 7 at-1000～-100 handkerchiefs according to negative pressure value.
Described incinerator comprises body of heater 1, and the top of these body of heater 1 one sides is provided with dog-house 2; In body of heater 1, by furnace wall 3, be arranged with the first combustion chamber 16 and the second combustion chamber 17, wherein the first combustion chamber 16 is positioned at a side of the second combustion chamber 17; The first combustion chamber 16 is connected by set cinder chamber 4 with the bottom of the second combustion chamber 17; The top of the second combustion chamber 17 is provided with exhanst gas outlet 5, and this exhanst gas outlet 5 is connected with air-introduced machine 7 by flue 6.
The front end of described body of heater 1 is respectively equipped with the air door 8 of an air feed and the air door 9 of secondary air feed; The first combustion chamber 16 is divided into the up-down structure of combustion zone, top and combustion zone, bottom by upper fire-grating 12 and lower fire grating 13; Between the adjacent fire grate segment of described upper fire-grating 12, be spaced apart 10～12cm, between the adjacent fire grate segment of lower fire grating 13, be spaced apart 2～3cm.The air door 8 of a described air feed is arranged with two, is all positioned at the top of upper fire-grating 12; The air door 9 of secondary air feed is arranged with two, all between upper fire-grating 12 and lower fire grating 13.The top of described lower fire grating 13 is arranged with two breast holes 18, and this breast hole 18 is positioned at air door 9 belows of secondary air feed.Described the first such design in combustion chamber 16 makes rubbish obtain thoroughly effectively burning.The bottom of the first combustion chamber 16 is designed to main combustion zone, make the radiation that can make progress of the high-temperature flue gas of main combustion zone, heat rubbish and air inlet in 16 tops, the first combustion chamber, thereby can again play heating for the effect of wind action and accelerated combustion, and flue gas trend, for downwards, gives rubbish and burns the time fully.
Described furnace wall 3 is heat conducting wall, and heat conducting wall is the heat-conduction wall that high-alumina brick or silicon carbide material are made.Rely on the heat conductivility of furnace wall 3, air and the furnace charge of heating the first combustion chamber 16 are medical waste.The heat of the second combustion chamber 17 partly reaches the first combustion chamber 16.For example use common high-alumina brick, when the second combustion chamber 17 records temperature and reaches 1000 ℃, be delivered to the temperature of the first combustion chamber 16 at 300～400 ℃, the fire box temperature directly improving, more thoroughly decomposes dioxin and other pollutants.
The chamber Kou Chu that described cinder chamber 4 is positioned at body of heater 1 front end is provided with and locks a door 11.
The top of described the first combustion chamber 16 is provided with lime charging aperture 14, and this lime charging aperture 14 connects lime bin 15 by feed pipe.When rubbish is burned, also produced flue gas has been carried out to depickling like this, shortened treatment cycle.
Need rubbish to be processed is sent into the first combustion chamber 16 by the dog-house 2 of body of heater 1 one upper lateral parts, the rubbish first upper fire-grating 12 in the first combustion chamber 16 burns, then lime-ash drops down onto lower fire grating 13 and proceeds burning, effect due to outside air-introduced machine 7, make the second combustion chamber 17 in incinerator produce negative pressure, twice air feed entering by the air door 8 of an air feed and the air door 9 of secondary air feed like this, in the first combustion chamber 16 communicating with 17 bottoms, the second combustion chamber, be to move downwards, form anti-burning, greatly improved the burning degree of medical waste; The high temperature that meanwhile the second combustion chamber 17 produces passes to the first combustion chamber 16 by heat-conduction wall by a part of heat, and the fire box temperature directly improving, more thoroughly decomposes dioxin and other pollutants.Simultaneously at flue 6, be provided with lambda sensor 10 or carbon monoxide transducer near near one end chimney; oxygen content or carbon monoxide content in like this can Real-Time Monitoring flue gas; thereby control air feed and feed; and lambda sensor or carbon monoxide transducer are located to this position can protect sensor by the flue gas of excess Temperature, not damaged; extend its service life, reasonable in design.
Claims (10)
1. the method for controlling combustion in an incineration treatment of garbage, it is characterized in that, on the exhanst gas outlet of set the second combustion chamber of incinerator and the flue between air-introduced machine, air feed monitoring sensor is installed, by this air feed monitoring sensor, detect the content of corresponding gas in flue gas, according to the index of this gas content, control air feed, simultaneously the scope internal control making blower fan at-1000～-100 handkerchiefs according to negative pressure value.
2. the method for controlling combustion in incineration treatment of garbage according to claim 1, is characterized in that, described air feed monitoring sensor is lambda sensor.
3. the method for controlling combustion in incineration treatment of garbage according to claim 2, is characterized in that, detects the content of oxygen in flue gas by described lambda sensor, and controlling air feed, to make oxygen content that lambda sensor detects remain on volume fraction be 5～14%.
4. the method for controlling combustion in incineration treatment of garbage according to claim 1, is characterized in that, described air feed monitoring sensor is carbon monoxide transducer.
5. the method for controlling combustion in incineration treatment of garbage according to claim 1, is characterized in that, described incinerator comprises body of heater, and the front end of body of heater is respectively equipped with the air door of an air feed and the air door of secondary air feed; The top of this body of heater one side is provided with dog-house; In body of heater, by furnace wall, be arranged with the first combustion chamber and the second combustion chamber, wherein the first combustion chamber is positioned at a side of the second combustion chamber, and furnace wall is heat conducting wall; The first combustion chamber is connected by set cinder chamber with the bottom of the second combustion chamber; The top of the second combustion chamber is provided with exhanst gas outlet, and this exhanst gas outlet is connected with air-introduced machine by flue, and described the first combustion chamber is up-down structure.
6. the method for controlling combustion in incineration treatment of garbage according to claim 5, is characterized in that, described heat conducting wall is heat-conduction wall.
7. the method for controlling combustion in incineration treatment of garbage according to claim 6, is characterized in that, its material of described heat-conduction wall is high-alumina brick or carborundum.
8. the method for controlling combustion in incineration treatment of garbage according to claim 5, is characterized in that, described the first combustion chamber is divided into the up-down structure of combustion zone, top and combustion zone, bottom by upper fire-grating and lower fire grating.
9. the method for controlling combustion in incineration treatment of garbage according to claim 8, is characterized in that, the air door of a described air feed is arranged with two, is all positioned at the top of upper fire-grating; The air door of secondary air feed is arranged with two, all between upper fire-grating and lower fire grating.
10. the method for controlling combustion in incineration treatment of garbage according to claim 9, is characterized in that, the top of described lower fire grating is arranged with two breast holes, and this breast hole is positioned at the air door below of secondary air feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410480458.1A CN104197336A (en) | 2014-09-19 | 2014-09-19 | Burning control method for waste incineration |
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| CN201410480458.1A CN104197336A (en) | 2014-09-19 | 2014-09-19 | Burning control method for waste incineration |
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| CN201410480458.1A Pending CN104197336A (en) | 2014-09-19 | 2014-09-19 | Burning control method for waste incineration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361720A (en) * | 2018-04-26 | 2018-08-03 | 吴征威 | A kind of intelligentized plasma garbage combustion device |
| CN110608440A (en) * | 2019-09-06 | 2019-12-24 | 山西普皓环保科技有限公司 | Garbage incineration and plasma gasification coupling process control system |
| CN113375169A (en) * | 2021-06-09 | 2021-09-10 | 北京基亚特环保科技有限公司 | Intelligent smoke and air control system of household garbage incineration equipment |
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| JPS60178214A (en) * | 1984-02-23 | 1985-09-12 | Mitsubishi Heavy Ind Ltd | Burning control device for incinerator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361720A (en) * | 2018-04-26 | 2018-08-03 | 吴征威 | A kind of intelligentized plasma garbage combustion device |
| CN110608440A (en) * | 2019-09-06 | 2019-12-24 | 山西普皓环保科技有限公司 | Garbage incineration and plasma gasification coupling process control system |
| CN113375169A (en) * | 2021-06-09 | 2021-09-10 | 北京基亚特环保科技有限公司 | Intelligent smoke and air control system of household garbage incineration equipment |
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