CN107178783A - A kind of garbage incineration process for reducing dioxin - Google Patents
A kind of garbage incineration process for reducing dioxin Download PDFInfo
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- CN107178783A CN107178783A CN201710281309.6A CN201710281309A CN107178783A CN 107178783 A CN107178783 A CN 107178783A CN 201710281309 A CN201710281309 A CN 201710281309A CN 107178783 A CN107178783 A CN 107178783A
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- burning room
- burning
- oil
- incineration
- dioxin
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/12—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating using gaseous or liquid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/80—Shredding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/10—Supplementary heating arrangements using auxiliary fuel
- F23G2204/103—Supplementary heating arrangements using auxiliary fuel gaseous or liquid fuel
Abstract
The invention discloses a kind of garbage incineration process for reducing dioxin, it is related to environmentally-friendly sanitary process field, comprises the following steps：(1) bulk will be broken into after rubbish rough segmentation, is packed standby；(2) the packed rubbish of step (1) is put into Burning Room, lead to oxygen, oil spout, igniting in the case of Burning Room is sealed, when burning to Burning Room internal temperature up to 1000 DEG C, open the control valve on escape pipe, discharge incineration gases, when Burning Room internal temperature is less than 850 DEG C, oil spout is burned, when again up to 1000 DEG C；Burning Room internal temperature is consistently higher than 850 DEG C during discharge incineration gases；(3) incineration gases of discharge inside Burning Room in step (2) are passed through removing flue dust in flue dust pretreatment unit and obtain dustless tail gas；(4) the dustless tail gas for obtaining step (3) is passed through fat and washes tower, the gas feeding tail gas treatment process obtained after being rinsed through grease, and fat is washed in the washing oil feeding step (2) come out below tower for supplement calorific value in Burning Room and decomposition dioxin.
Description
Technical field
The present invention relates to environmentally-friendly sanitary process field, and in particular to a kind of garbage incineration process of reduction dioxin.
Background technology
In urbanization process, rubbish is many in the world as the burden that the product of Urban Metabolism was once urban development
There was the situation of garbage-surrounded city in city.At present, the processing mode of rubbish is divided into two kinds：Landfill method and burning method, wherein, landfill
Method floor space is big, and the conventional plastic products degraded of the modern life is slow, to environmental pressure weight, and landfill domain is formed
Percolate in content of beary metal is big, various bacterium germs grow, for the severe water pollution in landfill region, it is seen that landfill method
Processing rubbish is not the meter of sustainable development.
Incineration treatment of garbage method is reacted by appropriate thermal decomposition, burning, melting etc., the oxygen for making rubbish pass through under high temperature
Change and carry out volume reduction, the process as residue or molten solids material reclaims the heat that waste incineration is produced, and can reach waste money
The purpose in source.Waste incineration is a kind of method of more ancient traditional processing rubbish, after being handled due to rubbish with burning method,
Reduction significantly, saves land used, can also eliminate various pathogen, and poisonous and harmful substance is converted into harmless object, therefore rubbish
Burning method turns into one of main method for the treatment of of urban garbage.
Waste incineration, general in-furnace temperature control is higher than 850 DEG C, and volume ratio can reduce 50-80% originally after burning, point
The combustible garbage that class is collected even can reduce 90% after burning disposal, and China's garbage combustion device uses foreign countries to enter substantially
Mouthful, because external refuse classification handles ideal, and China does not carry out classification processing rubbish substantially, so China's rubbish kind
Class is numerous and diverse, integrates combustible and noncombustible matter so that the calorific value of China's rubbish is low, is burnt using external import incinerator
Rubbish is burnt, is difficult to reach more than 850 DEG C of incineration temperature, in some instances it may even be possible to which midway is flame-out, on the one hand, so that the waste incineration energy is sharp
It is low with being worth, on the other hand it is also easy to produce reluctant class extremely toxic substance dioxin because temperature is not up to standard.It is well known that
Dioxin is easily produced in Refuse Incineration Process less than 850 DEG C, its toxicity is equivalent to widely known extremely toxic substance cyanide
130 times, 900 times of arsenic, substantial amounts of zoopery shows, the dioxin of very low concentrations just shows lethal effect to animal
Should.Toxicity data and clinical manifestation of some dioxin to human body have been obtained from occupational exposure and industrial accident victim,
In the environment containing PCDD or PCDF, can cause skin fully recover from an illness sore, have a headache, become deaf, the disease such as melancholy, insomnia, and may lead
Cause chromosome damage, heart failure, cancer etc..There is result of study to point out, dioxin also can result in that fetal growth is bad, man
Sperm count is significantly reduced, and the approach that it invades people's human body includes diet, air suction and skin contact.Some experts point out：People
Class exposure is given in the environment containing dioxin contamination, male fecundity forfeiture, sterility, Puberty of Female may be caused to shift to an earlier date,
Fetus and infant during lactation illness, immunologic function decline, IQ reduction, mental disease etc..
Because in-furnace temperature is controlled higher than 850 DEG C in burning process, then incinerator surface temperature is often as high as 300-
400 DEG C, such surface temperature is directly contacted with environment, cause it is certain into sensible heat waste.
For the low problem of calorific value of China's rubbish, refuse classification processing is basic solution, but this needs the time to change
Become, and environmental problem is very urgent, suitable handling process is the key point for solving current problem.
The content of the invention
The invention provides a kind of garbage incineration process for reducing dioxin, to solve conventional garbage burning process not
The problem of adapting to the actual rubbish situation of China and produce reluctant class extremely toxic substance dioxin because temperature is not up to standard.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is summarized as follows：
A kind of garbage incineration process for reducing dioxin, comprises the following steps：
(1) bulk will be broken into after rubbish rough segmentation, is packed standby；
(2) the packed rubbish of step (1) is put into Burning Room, oxygen, oil spout, point is led in the case of Burning Room is sealed
Fire, when burning to Burning Room internal temperature up to 1000 DEG C, opens the control valve on escape pipe, discharges in incineration gases, Burning Room
When portion's temperature is less than 850 DEG C, oil spout is burned, when again up to 1000 DEG C；Burning Room internal temperature begins when discharging incineration gases
It is higher than 850 DEG C eventually；
(3) incineration gases of discharge inside Burning Room in step (2) are passed through into removing flue dust in flue dust pretreatment unit to obtain
To dustless tail gas；
(4) the dustless tail gas for obtaining step (3) is passed through fat and washes tower, at the gas feeding tail gas obtained after being rinsed through grease
Science and engineering skill, and fat is washed in the washing oil feeding step (2) come out below tower for supplement calorific value in Burning Room and decomposition dioxin.
Compared with prior art, the beneficial effect produced by the present invention：
1st, the garbage incineration process that provides of the present invention is easy to the grease that burns to improve burning by being introduced into Burning Room
Temperature, so that conventional garbage burning process is not suitable with the actual rubbish situation of China and produces reluctant one because temperature is not up to standard
The problem of class extremely toxic substance dioxin, reduce the generation and discharge of dioxin in Refuse Incineration Process；
2nd, in present invention process, oil wash technique is added before treatment process after entering, washing oil is sent into Burning Room again to be fired
Burn, decompose the dioxin of absorption while calorific value is supplemented to Burning Room, it is to avoid the dioxin not decomposed enters environment
In；
3rd, the present invention use oil recovery source can for big-and-middle-sized restaurant fried food Residual oil, refine swill oil with
And the oil product that gutter oil of goods etc. can not be eaten is looked into, the characteristics of it is had after calorific value height, burning without pernicious gas can be effectively improved
Temperature in Burning Room, in addition, the Residual oil, the demand of the swill oil refined to big-and-middle-sized restaurant fried food also promote businessman not
Using gutter oil, supervise sideways, supervised food security.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of specific CIU；
Fig. 2 is the diagrammatic cross-section of Burning Room；
Fig. 3 is the structural representation of spray bar；
Fig. 4 is flue dust pretreatment unit sectional view；
Fig. 5 is the concrete structure schematic diagram that a kind of fat washes tower；
Fig. 6 is the mplifying structure schematic diagram at A；
Fig. 7 is the mplifying structure schematic diagram at B；
Marked in figure：1st, Burning Room；1-1, shell body；1-2, interlayer；1-3, inner housing；2nd, feeding gate；3rd, ground；4、
Fixed wall；5th, slide rail；6th, inertia cylinder；7th, control panel；8th, oil recovery injection pipe；9th, branch pipe；9-1, oil spout lid；9-2, spray
Oily aperture；10th, escape pipe；11st, oxygen-supplying tube；12nd, charging aperture；13rd, interlayer water inlet pipe；14th, interlayer outlet pipe；15th, evaporation boiler；
16th, steam tower；17th, water inlet pipe；18th, vapor pipe；19th, oil storage tank；20th, flue dust pretreatment unit；20-1, dedusting tower body；20-
2nd, except bin gate；20-3, filtrating smoke dust net；20-4, air inlet pipe；20-5, gas outlet；21st, air exhauster；22nd, oxygen tank；23rd, fat is washed
Tower body；24th, oil inlet pipe；25th, escape pipe；26th, air inlet pipe；27th, oblique separating plate；28th, oil-out；29th, flowline；30th, level point
From plate；31st, bottom plate；31-1, lower through-hole；32nd, dividing plate；33rd, bed is mixed；34th, pressing plate；34-1, the first oil baffle；34-2, on
Through hole；35th, drain line；35-1, drain oil；36th, big envelope；37th, breather pipe；38th, L-shaped oil baffle；38-1, passage；39th, second
Oil baffle
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.Embodiments of the present invention bag
Include but be not limited to the following example.
Embodiment 1
A kind of garbage incineration process for reducing dioxin, comprises the following steps：
(1) bulk will be broken into after rubbish rough segmentation, is packed standby；
(2) the packed rubbish of step (1) is put into Burning Room, oxygen, oil spout, point is led in the case of Burning Room is sealed
Fire, when burning to Burning Room internal temperature up to 1000 DEG C, opens the control valve on escape pipe, discharges in incineration gases, Burning Room
When portion's temperature is less than 850 DEG C, oil spout is burned, when again up to 1000 DEG C；Burning Room internal temperature begins when discharging incineration gases
It is higher than 850 DEG C eventually；
(3) incineration gases of discharge inside Burning Room in step (2) are passed through into removing flue dust in flue dust pretreatment unit to obtain
To dustless tail gas；
(4) the dustless tail gas for obtaining step (3) is passed through fat and washes tower, at the gas feeding tail gas obtained after being rinsed through grease
Science and engineering skill, and fat is washed in the washing oil feeding step (2) come out below tower for supplement calorific value in Burning Room and decomposition dioxin.
The garbage incineration process that the present embodiment is provided introduces the grease for being easy to burn into Burning Room to improve incineration temperature,
So as to which conventional garbage burning process is not suitable with the actual rubbish situation of China and reluctant class play is produced because temperature is not up to standard
The problem of noxious material dioxin, reduce the generation and discharge of dioxin in Refuse Incineration Process；In present invention process, after entering
Oil wash technique is added before treatment process, washing oil is sent into Burning Room again to burn, and will be inhaled while calorific value is supplemented to Burning Room
The dioxin of receipts is decomposed, it is to avoid the dioxin not decomposed enters in environment；Oil recovery that the present invention is used source can be for
The Residual oil of big-and-middle-sized restaurant fried food, the swill oil refined and the oil product that gutter oil of goods etc. can not be eaten is looked into, it has
The characteristics of after calorific value height, burning without pernicious gas, the temperature in Burning Room can be effectively improved, in addition, fried to big-and-middle-sized restaurant
The Residual oil of food, the demand of the swill oil refined also promote businessman not use gutter oil, supervise sideways, have supervised food security.
Embodiment 2
As shown in Figure 1-2, the system that a kind of garbage incineration process for reducing dioxin is used：Including being located at ground 3
On Burning Room 1, steam generating system, oxygen tank 22, flue dust pretreatment unit 20 and be connected with flue dust pretreatment unit 20
Exhaust gas aftertreatment system, be communicated with the side wall of the Burning Room 1 charging aperture 12 inside Burning Room 1, oxygen-supplying tube 11 with
And escape pipe 10, the feeding gate 2 provided with covering charging aperture 12 at the charging aperture 12, the oxygen-supplying tube 11 and the phase of oxygen tank 22
Even, the escape pipe 10 is connected with flue dust pretreatment unit 20；The top of Burning Room 1 is communicated with the evaporation inside Burning Room 1
Boiler 15, the side wall of the evaporation boiler 15 is provided with water inlet pipe 17, and the top of evaporation boiler 15 is provided with steam tower 16, described to steam
The top of gas tower 16 is provided with vapor pipe 18, and the vapor pipe 18 is connected with steam generating system；The inside of Burning Room 1 is provided with
Igniter；Burning Room 1 is externally provided with control igniter and detects the control panel 7 of the internal temperature of Burning Room 1, described to burn
Room 1 is made up of inside and outside two layers of inner housing 1-3 and shell body 1-1, and interlayer is formed between the inner housing 1-3 and shell body 1-1
1-2, the charging aperture 12, oxygen-supplying tube 11, escape pipe 10 and evaporation boiler 15 are all extended in inner housing 1-3, the shell
Body 1-1 lower end is connected with the interlayer water inlet pipe 13 extended in interlayer 1-2, and the top of the shell body 1-1, which is provided with, extends to folder
Interlayer outlet pipe 14 in layer 1-2, the interlayer outlet pipe 14 is connected with water inlet pipe 17, the oxygen-supplying tube 11 with, escape pipe 10,
The control valve with the Electricity Federation of control panel 7 is equipped with interlayer outlet pipe 14 and water inlet pipe 17.
The present embodiment uses double-decker and the water flowing in interlayer 1-2 so that the surface temperature of Burning Room 1 is down to 100 DEG C
Hereinafter, the surface temperature of Burning Room 1 is greatly reduced, sensible heat waste is reduced, meanwhile, the water of via interlayer 1-2 heating is entered again
In evaporation boiler 15, the purpose for making full use of and burning heat energy has been reached again.
Embodiment 3
Make further optimization on the basis of the waste incineration and generating electricity system described in embodiment 2, system is also included with pressure
The oil storage tank 19 of power pump, the top of the Burning Room 1 sets connection compression pump, the oil recovery injection pipe 8 of oil storage tank 19, described
Uniform some branch pipes 9 extended to inside Burning Room 1 on oil recovery injection pipe 8, oil recovery injection pipe 8 is provided with and chain of command
The control valve of the Electricity Federation of plate 7.
The operating procedure that the present embodiment can be carried out is：
(1) feeding gate 2 is closed after the completion of being fed by charging aperture 12；
(2) inside by the control valve and Burning Room 1 on the opening oil recovery of control panel 7 injection pipe 8, oxygen-supplying tube 11
Igniter, burn to when show the internal temperature of Burning Room 1 up to 1000 DEG C on control panel 7, closing oil recovery injection pipe 8
On control valve, open escape pipe 10 on control valve, discharge incineration gases；
(3) when showing that Burning Room internal temperature is less than 850 DEG C on control panel 7, open on oil recovery injection pipe 8
Control valve, when again up to 1000 DEG C, the control valve closed on oil recovery injection pipe 8；
(4) repeat step (3) is until burn complete, and the control valve on opening escape pipe 10 keeps burning in Burning Room 1
While waste incineration residue is produced, keep in Burning Room 1 that temperature is to reach the purpose of lasting generating, waste incineration residual
Thing puts into new rubbish, repeat step (1)-(3) again after producing.
In the present embodiment, whether the burning in detection Burning Room 1 fully has following two modes：(1) exhaust gas component is detected；
(2) according to the speed of temperature drop after the control valve closed on oil recovery injection pipe 8, the continuous 3 temperature drop time is basic
It is equal, it is believed that to burn complete.
In the present embodiment, oxygen-supplying tube 11 is located at the bottom of Burning Room 1, it is ensured that oxygen supply is sufficient when being burned in Burning Room 1, and reduction has
The generation of evil gas.
The present embodiment sets oil recovery injection pipe 8, is introduced by oil recovery injection pipe 8 into Burning Room 1 and is easy to burn
The oil recovery of burning is to improve incineration temperature, so that solving conventional garbage incinerator is not suitable with the actual rubbish situation of China and because of temperature
Not the problem of generation up to standard reluctant class extremely toxic substance dioxin, the generation of dioxin in Refuse Incineration Process is reduced
With discharge.
Embodiment 4
As shown in figure 3, making further optimization, the cigarette on the basis of the waste incineration and generating electricity system described in embodiment 2
Dirt pretreatment unit 20 is included in dedusting tower body 20-1, the dedusting tower body 20-1 provided with two filtrating smoke dust net 20-3, two
Filtrating smoke dust net 20-3 will be divided into three chambers in left, middle, right distribution, left chamber and centre inside dedusting tower body 20-1
It is equipped with the side wall of chamber except bin gate 20-2, the left chamber is provided with the air inlet pipe 20-4 being connected with escape pipe 10, described
Right chamber room is provided with the gas outlet 20-5 being connected with exhaust gas aftertreatment system, and the present embodiment is by setting two layers of filtrating smoke dust net
20-3, flue dust is removed thoroughly, is set on the side wall of left chamber and intermediate cavity and is removed bin gate 20-2, will conveniently can be adsorbed in time
Flue dust discharge.
Embodiment 5
Make further optimization on the basis of the waste incineration and generating electricity system described in embodiment 3, the escape pipe 10 is with entering
Air exhauster 21 is provided between tracheae 20-4, the setting of the present embodiment is easy to before waste incineration complete unloading will be harmful in Burning Room
Gas is taken away.
Embodiment 6
Make further optimization on the basis of the waste incineration and generating electricity system described in embodiment 6, the ground 3 is provided with logical
Toward the slide rail 5 of charging aperture 12, the lower section of the feeding gate 2 is provided with the sliding block corresponding with slide rail 5, the outer end end of the slide rail 5
Portion is provided with driving feeding gate 2 along cunning provided with the vertical fixed wall 4 parallel with feeding gate 2 between the fixed wall 4 and feeding gate 2
The inertia cylinder 6 that rail 5 is slided；To ensure heat insulation effect, the thickness of feeding gate 2 is consistent with Burning Room 1, and its weight often weighs hundreds of
Jin, manually moves difficulty, and the temperature of the laggard bin gate 2 of burning is higher, and people has the danger being burned, this reality close to feeding gate 2
Apply example setting purpose be solve feeding gate 2 closed-ended question, controlled by inertia cylinder 6, from manually moving, operate compared with
To be laborsaving.
Embodiment 7
Make further optimization on the basis of the waste incineration and generating electricity system described in embodiment 6, the control panel 7 is located at
On fixed wall 4, the setting of the present embodiment can make control panel 7 away from the higher Burning Room 1 of temperature, it is to avoid high temperature influences chain of command
The service life of plate 7.
Embodiment 8
Make further optimization on the basis of the refuse incineration device described in embodiment 2, the feeding gate 2 is L-shaped,
Rubbish can be placed on the horizonal base plate of feeding gate 2 in the present embodiment, be easy to charging.
Embodiment 9
As shown in figure 4, making further optimization, the branch on the basis of the refuse incineration device described in embodiment 3
The lower section of pipe 9 is provided with oil spout lid 9-1, and the oil spout lid 9-1 is provided with some oil spit hole 9-2, and the setting of the present embodiment can be really
Guarantor's oil spout is uniform, spray wide, it is ensured that waste incineration is uniform, quick.
Embodiment 10
Make further optimization, the material of the inner housing 1-3 on the basis of the refuse incineration device described in embodiment 2
Matter is aluminate cement, and shell body 1-1 material is cement, and inner housing 1-3 thickness is 20-30cm, inner housing 1-3 setting
It is that, based on the purpose for enabling Burning Room 1 to bear HTHP, using aluminate cement, 1350 DEG C of temperature can be withstood up to；
Shell body 1-1 thickness is 50-60cm, and by widening wall thickness to 50-60cm, heat insulation effect is good, can reduce surface temperature extremely
Less than 80 DEG C.
Embodiment 11
As described in Fig. 5-7, in a kind of garbage incineration process for reducing dioxin described in embodiment 1, the fat of use is washed
Tower：Tower body 23 is washed including fat, the fat washes the inside of tower body 23 filled with mixing bed 33, and the top of the mixing bed 33 is with
Side, which is respectively equipped with, is respectively equipped with the upper through hole 34-2 by fluid with on pressing plate 34 and bottom plate 31, the pressing plate 34 and bottom plate 31
It is in S to be provided with the fluid passage formed between some horizontally disposed dividing plates 32, the dividing plate 32 in through hole 31-1, mixing bed 33
Shape；The top of the pressing plate 34 is provided with horizontal separation plate 30, above and below the top cavity of pressing plate 34 is separated into by the horizontal separation plate 30
Two parts, the horizontal separation plate 30, which is provided with, prevents the logical oily structure of gas overflowing；The fat of the top of horizontal separation plate 30 washes tower
The wall of body 23 is provided with the oil inlet pipe 24 for realizing fuel feeding, and the fat between horizontal separation plate 30 and pressing plate 34 is washed the wall of tower body 23 and is provided with out
Tracheae 25；The lower section of bottom plate 31 is provided with oblique separating plate 27, and the lower cavity of bottom plate 31 is separated into left and right by the oblique separating plate 27
Two parts, the fat of the oblique lower section of separating plate 27 washes the wall of tower body 23 provided with air inlet pipe 26, and the upper end of oblique separating plate 27 is provided with breather pipe
37；Tiltedly the fat between separating plate 27 and bottom plate 31 is washed the wall of tower body 23 and is provided with oil-out 28, the oil-out 28 equipped with fuel-displaced
Pipe 29, the outlet of the flowline 29 upward, and flowline 29 height be less than breather pipe 37 height.
The fat that the present embodiment is provided washes the operation principle of tower：Incineration tail gas is upwardly into fat through air inlet pipe 26 and washes tower, and
Fluid rinses downwards incineration tail gas from the oil inlet pipe 24 of upper end, and in mixing bed 33, incineration tail gas is fully contacted with fluid, is burnt
The dioxin burnt in tail gas is fully absorbed by fluid, is finally reached the effect for absorbing dioxin.
In the present embodiment, mixing bed 33 is made up of molecular sieve or activated carbon cement gravel, molecular sieve therein or activity
Charcoal can play certain suction-operated, be that the vent gas treatment of rear workshop section reduces load；The S-shaped fluid formed between dividing plate 32 leads to
Road causes the long flow path of fluid, is further ensured that incineration tail gas is fully contacted with fluid.
In the present embodiment, the corresponding construction at oil inlet pipe 24, flowline 29, air inlet pipe 26 and escape pipe 25 is set,
It can guarantee that and leave the mixing outer gas-liquid separation of bed 33, be specially：To the setting at oil inlet pipe 24, moreover it is possible to prevent gas directly through entering
Oil pipe 24 overflows；Outlet to flowline 29 is set, and mainly forms the condition that fluid seals oil-out 28, it is to avoid incineration gases
Directly overflowed through oil-out 28；It is to prevent fluid from flowing into air inlet pipe 26 and going out to the setting at air inlet pipe 26 and escape pipe 25
Tracheae 25.
The fat that the present embodiment is provided washes tower and make use of excellent fat-soluble of dioxin, is rinsed using fluid oil containing two
The incineration tail gas of English is disliked, gas-liquid separation is abundant, dioxin good absorbing effect, dioxin in the incineration tail gas come out from escape pipe 25
Content as little as 0.005ng TEQ/Nm3, far below discharging standards 0.1ng TEQ/Nm3.
Embodiment 12
Make further optimization on the basis of the fat described in embodiment 11 washes tower, as shown in Fig. 2 the logical oily structure includes
Through the drain line 35 and the big envelope 36 that is covered on drain line 35 of horizontal separation plate 30, set on the side wall of the drain line 35
There is drain oil 35-1, the big envelope 36 seals the structure of lower ending opening in top, and the lower end of big envelope 36 is less than drain oil 35-1
Position, the present embodiment seals path using fluid, prevents gas from directly being overflowed through oil inlet pipe 24.
Embodiment 13
Make further optimization on the basis of the fat described in embodiment 12 washes tower, the upper through hole 34-2 sides are provided with and prevented
Fluid flows into the first oil baffle 34-1 of escape pipe 25, and the lower end of the drain line 35 is less than the first oil baffle 34-1, this implementation
The setting of example is to prevent fluid from flowing into escape pipe 25 to allow.
Embodiment 14
Make further optimization on the basis of the fat described in embodiment 11 washes tower, as shown in figure 3, the side of the breather pipe 37
L-shaped oil baffle 38 provided with handstand, the vertical portion of the L-shaped oil baffle 38 is provided with passage 38-1, and bottom plate 31 is provided with anti-
Only fluid is splashed into passage 38-1 the second oil baffle 39, and the setting of the present embodiment is to prevent fluid from flowing into air inlet pipe to allow
26。
It is embodiments of the invention as described above.The present invention is not limited to the above-described embodiments, anyone should learn that
The structure change made under the enlightenment of the present invention, the technical schemes that are same or similar to the present invention each fall within this
Within the protection domain of invention.
Claims (1)
1. a kind of garbage incineration process for reducing dioxin, it is characterised in that comprise the following steps：
(1) bulk will be broken into after rubbish rough segmentation, is packed standby；
(2) the packed rubbish of step (1) is put into Burning Room, oxygen, oil spout, igniting is led in the case of Burning Room is sealed,
When burning to Burning Room internal temperature up to 1000 DEG C, the control valve on escape pipe is opened, temperature inside incineration gases, Burning Room is discharged
When degree is less than 850 DEG C, oil spout is burned, when again up to 1000 DEG C；Burning Room internal temperature is high all the time when discharging incineration gases
In 850 DEG C；
(3) incineration gases of discharge inside Burning Room in step (2) are passed through removing flue dust in flue dust pretreatment unit and obtain nothing
Dirt tail gas；
(4) the dustless tail gas for obtaining step (3) is passed through fat and washes tower, the gas feeding vent gas treatment work obtained after being rinsed through grease
Skill, and fat is washed in the washing oil feeding step (2) come out below tower for supplement calorific value in Burning Room and decomposition dioxin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281309.6A CN107178783A (en) | 2017-04-26 | 2017-04-26 | A kind of garbage incineration process for reducing dioxin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281309.6A CN107178783A (en) | 2017-04-26 | 2017-04-26 | A kind of garbage incineration process for reducing dioxin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107178783A true CN107178783A (en) | 2017-09-19 |
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| CN201710281309.6A Pending CN107178783A (en) | 2017-04-26 | 2017-04-26 | A kind of garbage incineration process for reducing dioxin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722121A (en) * | 2018-05-28 | 2018-11-02 | 史里司 | The fat of dioxins concentration washes tower in a kind of reduction garbage incinerating tail gas |
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| CN101344253A (en) * | 2008-08-07 | 2009-01-14 | 上海交通大学 | Control method of incineration furnace for vessel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722121A (en) * | 2018-05-28 | 2018-11-02 | 史里司 | The fat of dioxins concentration washes tower in a kind of reduction garbage incinerating tail gas |
| CN108722121B (en) * | 2018-05-28 | 2020-11-27 | 浙江程诚文化用品有限公司 | Fat washing tower for reducing content of dioxin in waste incineration tail gas |
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