CN108036324A - A kind of burning processing system and method - Google Patents
A kind of burning processing system and method Download PDFInfo
- Publication number
- CN108036324A CN108036324A CN201810035850.3A CN201810035850A CN108036324A CN 108036324 A CN108036324 A CN 108036324A CN 201810035850 A CN201810035850 A CN 201810035850A CN 108036324 A CN108036324 A CN 108036324A
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- burning
- incinerator
- pulverized
- flue gas
- fired boiler
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- 238000012545 processing Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003245 coal Substances 0.000 claims abstract description 99
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000003546 flue gas Substances 0.000 claims abstract description 94
- 239000000779 smoke Substances 0.000 claims abstract description 57
- 239000010802 sludge Substances 0.000 claims abstract description 53
- 238000002485 combustion reaction Methods 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 29
- 239000002028 Biomass Substances 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 239000002671 adjuvant Substances 0.000 claims description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000505 pernicious effect Effects 0.000 abstract description 19
- 239000000843 powder Substances 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract description 5
- 239000002817 coal dust Substances 0.000 description 6
- 238000003915 air pollution Methods 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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
- F23G5/008—Incineration of waste; Incinerator constructions; Details, accessories or control therefor adapted for burning two or more kinds, e.g. liquid and solid, of waste being fed through separate inlets
-
- 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
-
- 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
- F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
-
- 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
- F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The present invention relates to incineration treatment technology field, discloses a kind of burning processing system and method, which includes being used to burn the incinerator for treating incinerated matter, and the flue gas for being produced to incinerator carries out the pulverized-coal fired boiler of second-time burning；Pulverized-coal fired boiler is equipped with smoke inlet, and incinerator is equipped with smoke outlet, and smoke inlet is connected with smoke outlet by smoke discharging pipe；Treat that incinerated matter includes sludge and/or rubbish and/or biomass.The present invention carries out second-time burning by the flue gas that pulverized-coal fired boiler produces incinerator burning, extends the burning time of flue gas；When burning sludge and rubbish, ignition temperature during flue gas secondary combustion is improved, such as bioxin of the pernicious gas in flue gas etc. is completely broken down, reduce flue gas caused by burning to the pollution level of air.In biomass burning, it can reduce directly when use coal powder boiler combustion biomass power generation, the influence of the heating surface generation of burning and pulverized-coal fired boiler of the flue gas that coal powder boiler combustion produces to pulverized-coal fired boiler.
Description
Technical field
The present invention relates to incineration treatment technology field, more particularly to a kind of burning processing system and method.
Background technology
The yield of municipal sludge and rubbish is huge and complicated component, how municipal sludge and rubbish are handled into
For it is most important the problem of.The processing of sludge and rubbish should be with " minimizing, stabilisation, innoxious " for final purpose, herein
The technology of better economy should be selected under principle.The processing method of municipal sludge and rubbish mainly has landfill and for farming
Fertilizer.There are problems with when carrying out sludge and garbage disposal using above two mode：
1st, with the raising of environmental protection standard and the implementation of recycling policy, landfill method is not the approach of sustainable development,
And landfill occupies a large amount of soils, processing cost is higher, therefore landfill method is not gradually by as processing municipal sludge and rubbish
The method of rubbish.
2nd, sludge is a kind of preferable outlet as farmland fertilizer, but the heavy metal in sludge and rubbish and organic pollution general
Can be subject to certain restrictions the application.
In order to solve the above-mentioned technical problem, typically now there is dirt using sludge and garbage burning processing method, this method
Mud burns that volume reduction amount is big, the features such as taking up little area, handle quickly and can kill pathogen.But sludge and incineration treatment of garbage
Method still has following defect, mainly not high enough and flue gas falls short of in the high temperature section residence time in incinerator furnace temperature
When, the pernicious gas especially bioxin in flue gas caused by burning etc. can be caused to be completely broken down, and directly discharge
Into air, environment is seriously polluted.
The content of the invention
It is an object of the invention to provide a kind of burning processing system and method, solve and burned using incineration treatment method
When sludge and rubbish, cause to burn the cigarette produced because incinerator furnace temperature is not high enough and flue gas falls short of in the high temperature section residence time
The problem of pernicious gas especially bioxin in gas etc. cannot be completely broken down.
For this purpose, the present invention uses following technical scheme：
A kind of burning processing system, including treat the incinerator of incinerated matter for burning, and the cigarette for being produced to incinerator
Gas carries out the pulverized-coal fired boiler of second-time burning；The pulverized-coal fired boiler is equipped with smoke inlet, and the incinerator is equipped with smoke outlet, described into cigarette
Mouth is connected with the smoke outlet by smoke discharging pipe；It is described to treat that incinerated matter includes sludge and/or rubbish or biomass.
The present invention carries out secondary combustion by setting pulverized-coal fired boiler, and by the flue gas that pulverized-coal fired boiler produces incinerator burning
Burn, extend the burning time of flue gas so that flue gas is burned more abundant；And due to pulverized-coal fired boiler can produce it is higher
Ignition temperature, ignition temperature when can be by improving flue gas secondary combustion, enables pernicious gas in flue gas as far as possible
It is decomposed by high-temp combustion, avoids the pernicious gas pollution air in burning sludge and the flue gas of rubbish generation.
As optimal technical scheme, the smoke inlet is arranged on the lower furnace portion of pulverized-coal fired boiler.Incinerator burning is produced
Lower furnace portion of the flue gas through pulverized-coal fired boiler is passed through in the burner hearth of pulverized-coal fired boiler, is extended into the flue gas in pulverized-coal fired boiler in burner hearth
The interior residence time so that the pernicious gas in flue gas can be decomposed by high-temp combustion as far as possible.
It is described when incinerated matter includes sludge and/or rubbish as optimal technical scheme, it is equipped with the incinerator combustion-supporting
Agent.Since sludge and rubbish may contain more moisture, by incinerator add combustion adjuvant can ensure sludge or
Person's rubbish is sufficiently burned, and avoids the occurrence of insufficient phenomenon of burning.
As optimal technical scheme, the combustion adjuvant is coal or natural gas or fuel oil.Made by adding coal in incinerator
The burning degree of sludge and rubbish in incinerator is improved for combustion adjuvant, ensures that sludge in incinerator and rubbish can be by
Fully burning.And improve the temperature in incinerator so that the pernicious gas such as bioxin can be completely broken down at high temperature.
As optimal technical scheme, the incinerator is fluidized bed incinerator, rotary kiln incinerator or chain incinerator.
As optimal technical scheme, the pulverized-coal fired boiler is connected with smoke eliminator.By setting smoke eliminator,
The flue gas produced after the flue gas and incinerator second-time burning that coal dust firing produces in pulverized-coal fired boiler can be purified, is avoided without net
The flue gas of change, which is discharged into air, causes air pollution.The flue gas that incinerator produces is net without first individually carrying out when discharging incinerator
Change is handled, and reduces production cost, the flue gas of incinerator discharge by the further burning of pulverized-coal fired boiler after handling, by flue gas
Purifier carries out purified treatment.
As optimal technical scheme, the smoke outlet of the incinerator is equipped with the flow inspection for the exhaust smoke level for being used to detect incinerator
Survey device, and the temperature-detecting device of the temperature of the smoke outlet for detecting incinerator.By the exhaust smoke level for monitoring incinerator
And the temperature of the smoke outlet of incinerator, and the amount for treating incinerated matter is adjusted, the flue gas of incinerator discharge can be reduced to coal dust pot
The influence that the burning of stove and the heating surface of pulverized-coal fired boiler produce.The heat for treating incinerated matter generation can also be measured and measured and wait to burn
Burn the total amount of heat of thing supply pulverized-coal fired boiler.
As optimal technical scheme, described when incinerated matter includes sludge, the sludge is dewatered sludge or wet mud.
To achieve these goals, present invention also offers a kind of incineration treatment method, using above-mentioned burning disposal system
System carries out burning disposal to sludge and/or rubbish, comprises the following steps：Sludge and/or rubbish or biomass are put into incinerator
Inside burn, and the flue gas produced by pulverized-coal fired boiler to incinerator carries out second-time burning.
, can be to the flue gas of incinerator generation by pulverized-coal fired boiler since pulverized-coal fired boiler can reach higher ignition temperature
High temperature second-time burning is carried out, sludge and incineration firing processing are carried out compared to only with incinerator, when extending the burning of flue gas
Between so that flue gas is burned more abundant；Pernicious gas in flue gas can be decomposed by high-temp combustion, avoid burning dirty
Pernicious gas pollution air in the flue gas that mud and rubbish produce.
Burning disposal is carried out to biomass by using the method for the invention, it is possible to increase ignition temperature, makes biomass
Burning more fully, and can reduce directly when use coal powder boiler combustion biomass power generation, coal powder boiler combustion generation
Burning and pulverized-coal fired boiler of the flue gas to pulverized-coal fired boiler the influence that produces of heating surface.
As optimal technical scheme, the flue gas produced after second-time burning is filled by the gas cleaning being connected with pulverized-coal fired boiler
Put carry out purified treatment.Due to needing to carry out purified treatment to the flue gas after second-time burning, pulverized-coal fired boiler is connected with gas cleaning
Device.Incinerator burns the flue gas that produces later without first individually carrying out purified treatment, and the flue gas after second-time burning is directly and coal
The flue gas that powder boiler combustion produces reduces production cost, is ensureing to arrange through being discharged into air along after its purifier purified treatment
On the premise of entering the flue gas in air and will not causing air pollution and endanger human body health, simplify as far as possible sludge with
And garbage disposal step, processing method are simply efficient.
As optimal technical scheme, the exhaust smoke level of the smoke outlet of the incinerator is total no more than the burner hearth inlet air of pulverized-coal fired boiler
The 5% of amount.In burning sludge and rubbish, burning and coal dust of the flue gas of incinerator discharge to pulverized-coal fired boiler can be reduced
The influence that the heating surface of boiler produces；When burning biomass, it can reduce and directly use coal powder boiler combustion biomass power generation
When, influence that the heating surface of burning and pulverized-coal fired boiler of the flue gas to pulverized-coal fired boiler that coal powder boiler combustion produces produces.
As optimal technical scheme, the flame of centre temperature of the pulverized-coal fired boiler is higher than 1500 DEG C.By to pulverized-coal fired boiler
The restriction of interior temperature, ensures ignition temperature during flue gas secondary combustion, enable pernicious gas such as bioxin in flue gas by
Fully decompose.
As optimal technical scheme, it is more than into residence time of the flue gas in the pulverized-coal fired boiler in pulverized-coal fired boiler
2s.By the restriction to the gas residence time in pulverized-coal fired boiler, it further ensure that flue gas in pulverized-coal fired boiler can be by
Fully burning, avoids the occurrence of insufficient phenomenon of burning, gives the pernicious gases such as bioxin the sufficient resolving time.
Beneficial effects of the present invention：Burning processing system of the present invention passes through coal dust by setting pulverized-coal fired boiler
The flue gas that boiler produces incinerator burning carries out second-time burning, extends the burning time of flue gas so that what flue gas was burned
It is more abundant；When burning sludge and rubbish, since pulverized-coal fired boiler can produce higher ignition temperature, raising can be passed through
Ignition temperature during flue gas secondary combustion, makes such as bioxin of the pernicious gas in flue gas etc. to be divided completely by high-temp combustion
Solution, reduces pollution level of the flue gas to air of burn sludge and rubbish generation.
In biomass burning, can reduce directly when using coal powder boiler combustion biomass power generation, coal powder boiler combustion
The influence that the heating surface of burning and pulverized-coal fired boiler of the flue gas of generation to pulverized-coal fired boiler produces.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structure schematic diagram of burning processing system described in the embodiment of the present invention one.
In figure：
1st, incinerator；11st, smoke outlet；
2nd, pulverized-coal fired boiler；21st, smoke inlet；
3rd, smoke discharging pipe.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work, belong to the scope of protection of the invention.
As shown in Figure 1, present embodiments providing a kind of burning processing system, including the incinerator of incinerated matter is treated for burning
1, and the pulverized-coal fired boiler 2 of the progress second-time burning of the flue gas for being produced to incinerator 1；The pulverized-coal fired boiler 2 is equipped with smoke inlet 21,
The incinerator 1 is equipped with smoke outlet 11, and the smoke inlet 21 is connected with the smoke outlet 11 by smoke discharging pipe 3.The present embodiment
In, described to treat that incinerated matter includes sludge and/or rubbish and described when incinerated matter includes sludge, the sludge can be desiccation
Sludge or wet mud, when burning and drying sludge, can reduce the usage amount of combustion adjuvant.
The present embodiment is carried out by setting pulverized-coal fired boiler 2, and by the flue gas that pulverized-coal fired boiler 2 produces the burning of incinerator 1
Second-time burning, extends the burning time of flue gas so that flue gas is burned more abundant；And since pulverized-coal fired boiler 2 can
Higher ignition temperature is produced, ignition temperature when can be by improving flue gas secondary combustion, makes pernicious gas in flue gas such as
Bioxin etc. can be completely broken down by high-temp combustion, avoid the pernicious gas in burning sludge and the flue gas of rubbish generation dirty
Contaminate air.
Preferably, the smoke inlet 21 is arranged on the lower furnace portion of pulverized-coal fired boiler 2.The flue gas that incinerator burning is produced is through coal
The lower furnace portion of powder boiler is passed through in the burner hearth of pulverized-coal fired boiler, extend into the flue gas in pulverized-coal fired boiler stopped in burner hearth when
Between so that the pernicious gas such as bioxin can be completely broken down by high-temp combustion in flue gas.
Further, it is equipped with combustion adjuvant in the incinerator 1.Since sludge and rubbish may contain more moisture,
In order to ensure sludge and rubbish can be ignited and fully burning as far as possible, the present embodiment addition in the incinerator 1
Combustion adjuvant.Preferably, the combustion adjuvant is coal, and further, the combustion adjuvant selects coal dust, passes through the addition in incinerator 1
Combustion adjuvant improves the burning degree of sludge and rubbish in incinerator 1, ensures that sludge in incinerator 1 and rubbish can be by
Fully burning.And improve the temperature in incinerator 1 so that the pernicious gas such as bioxin can be complete under high-temp combustion
Decompose.The combustion adjuvant can also select other materials with combustion-supporting property such as natural gas or fuel oil.
In the present embodiment, the incinerator 1 is fluidized bed incinerator, rotary kiln incinerator or chain incinerator.Can be with
Using the incinerator of other can burn sludge and rubbish.
The pulverized-coal fired boiler 2 is connected with smoke eliminator.The flue gas that incinerator 1 produces need not when discharging incinerator 1
Purified treatment is first individually carried out, reduces production cost, the flue gas that incinerator 1 is discharged is in the further combustion by pulverized-coal fired boiler 2
After burning processing, purified treatment is carried out by smoke eliminator.Smoke eliminator can purification secondary burning after flue gas and
The flue gas that coal powder boiler combustion produces, avoids not purified flue gas from being directly discharged into air and causes air pollution.
Smoke eliminator includes denitrification apparatus, dust-extraction unit, desulfurizer etc., smoke eliminator in the present embodiment
For the existing prior art, no longer it is described in detail herein.
The smoke outlet 11 of the incinerator 1 is equipped with the flow detector for the exhaust smoke level for being used to detect incinerator 1, Yi Jiyong
In the temperature-detecting device of the temperature of the smoke outlet 11 of detection incinerator 1.By the exhaust smoke level and incinerator that monitor incinerator 1
The temperature of 1 smoke outlet 11, and the amount of the amount and combustion adjuvant of conditioning of mud and rubbish, can reduce the cigarette of the discharge of incinerator 1
The influence that the heating surface of burning and pulverized-coal fired boiler 2 of the gas to pulverized-coal fired boiler 2 produces.
The present embodiment additionally provides a kind of incineration treatment method, using above-mentioned burning processing system to sludge/rubbish into
Row burning disposal, specifically includes following steps, and sludge and/or rubbish are put into incinerator and burnt, and passes through coal dust pot
The flue gas that stove 2 produces incinerator carries out second-time burning.
Since pulverized-coal fired boiler 2 can reach higher ignition temperature, incinerator 1 can be produced by pulverized-coal fired boiler 2
Flue gas carries out high temperature second-time burning, carries out sludge and incineration firing processing compared to only with incinerator 1, extends the combustion of flue gas
Burn the time so that flue gas is burned more abundant；Pernicious gas such as bioxin in flue gas etc. can pass through high-temp combustion quilt
Decompose, avoid the pernicious gas pollution air in burning sludge and the flue gas of rubbish generation.
The flue gas produced after second-time burning carries out purified treatment by the smoke eliminator for being connected to pulverized-coal fired boiler 2,
By setting smoke eliminator, the flue gas that can produce after purifying incinerator second-time burning avoids not purified flue gas from arranging
Enter and air pollution is caused in air.Due to needing to carry out purified treatment to the flue gas after second-time burning, and pulverized-coal fired boiler 2 connects
Have along its purifier, therefore incinerator 1 burns the flue gas produced later without first individually being purified, only need to be to second-time burning
The flue gas that the burning of flue gas pulverized-coal fired boiler 2 afterwards produces carries out purified treatment, reduces production cost, is ensureing to be discharged into air
In flue gas will not cause air pollution and endanger human body health on the premise of, simplify sludge and rubbish as far as possible
Processing step, processing method are simply efficient.
Preferably, the exhaust smoke level of the smoke outlet 11 of the incinerator 1 is no more than the burner hearth inlet air total amount of pulverized-coal fired boiler 2
5%., can be by controlling the sludge of incinerator 1 and the amount of rubbish and helping in the case where 2 inlet air total amount of pulverized-coal fired boiler is constant
Fire agent amount, come ensure incinerator 1 burn after outlet exhaust smoke level account for 2 burner hearth import total blast volume of pulverized-coal fired boiler 5% and below.
It can so ensure that the flue gas that incinerator 1 exports produces minor impact to pulverized-coal fired boiler 2, including to boiler combustion and boiler
Heating surface etc. produces minor impact.
The flame of centre temperature of the pulverized-coal fired boiler 2 is higher than 1500 DEG C, ensures ignition temperature during flue gas secondary combustion；Into
Entering residence time of the flue gas in the pulverized-coal fired boiler 2 in pulverized-coal fired boiler 2 is more than 2s.By to the temperature in pulverized-coal fired boiler 2
And the restriction of gas residence time, it further ensure that the flue gas in pulverized-coal fired boiler 2 can be sufficiently burned, make in flue gas
Pernicious gas such as bioxin can be adequately broken, avoid the occurrence of the insufficient phenomenon of burning.
Found by experimental verification, the flame of centre temperature of the pulverized-coal fired boiler 2 is higher than 1500 DEG C, and enters the coal
Residence time of the flue gas in pulverized-coal fired boiler 2 in powder boiler 2 is more than under conditions of 2s, in the flue gas that the burning of incinerator 1 produces
Polluted gas be converted into uncontaminated gases, especially bioxin and can be completely broken down, improve the burning processing system
Environmental-protecting performance.
Embodiment two
The difference between this embodiment and the first embodiment lies in treating incinerated matter difference, treat that incinerated matter is made a living described in the present embodiment
Material, since biomass has the characteristics that conflagration in itself, without adding combustion adjuvant in incinerator.
The present embodiment is by monitoring the exhaust smoke level of incinerator and the temperature of smoke outlet, it is possible thereby to which metering combustion biomass is produced
Raw heat and the total amount of heat for measuring biomass supply pulverized-coal fired boiler.
The other structures of burning processing system in the present embodiment are identical with a kind of corresponding structure of embodiment, herein no longer
It is superfluous to chat.
The incineration treatment method of the present embodiment, biomass is carried out burning disposal, tool using above-mentioned burning processing system
Body comprises the following steps, and biomass is put into incinerator and is burnt, and the flue gas produced by pulverized-coal fired boiler to incinerator
Carry out second-time burning.
Burning disposal is carried out to biomass by using the present embodiment the method, it is possible to increase ignition temperature, makes biology
Matter burning more fully, and can reduce directly when use coal powder boiler combustion biomass power generation, coal powder boiler combustion produces
The influence that the heating surface of burning and pulverized-coal fired boiler of the raw flue gas to pulverized-coal fired boiler produces.
Other steps are identical with the corresponding steps in the incineration treatment method described in embodiment one, no longer superfluous herein to chat.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (13)
- A kind of 1. burning processing system, it is characterised in that the incinerator (1) including treating incinerated matter for burning, and for burning Burn the pulverized-coal fired boiler (2) that the flue gas that stove (1) produces carries out second-time burning；The pulverized-coal fired boiler (2) is equipped with smoke inlet (21), described Incinerator (1) is equipped with smoke outlet (11), and the smoke inlet (21) is connected with the smoke outlet (11) by smoke discharging pipe (3)；Institute State and treat that incinerated matter includes sludge and/or rubbish or biomass.
- 2. burning processing system according to claim 1, it is characterised in that the smoke inlet (21) is arranged on pulverized-coal fired boiler (2) lower furnace portion.
- 3. burning processing system according to claim 1, it is characterised in that described to treat that incinerated matter includes sludge and/or rubbish During rubbish, combustion adjuvant is equipped with the incinerator (1).
- 4. burning processing system according to claim 3, it is characterised in that the combustion adjuvant is coal or natural gas or combustion Oil.
- 5. burning processing system according to claim 1, it is characterised in that the incinerator (1) for fluidized bed incinerator, Rotary kiln incinerator or chain incinerator.
- 6. burning processing system according to claim 1, it is characterised in that the pulverized-coal fired boiler is connected with gas cleaning dress Put.
- 7. burning processing system according to claim 1, it is characterised in that the smoke outlet (11) of the incinerator (1) is set The flow detector of the exhaust smoke level of detection incinerator (1) is useful for, and for detecting the smoke outlet (11) of incinerator (1) The temperature-detecting device of temperature.
- 8. burning processing system according to claim 1, it is characterised in that it is described when incinerated matter includes sludge, it is described Sludge is dewatered sludge or wet mud.
- 9. a kind of incineration treatment method, it is characterised in that using any burning processing system of claim 1 to 7 to dirt Mud and/or rubbish and/or biomass carry out burning disposal, comprise the following steps：By sludge and/or rubbish be put into incinerator into Row burning, and the flue gas produced by pulverized-coal fired boiler to incinerator carries out second-time burning.
- 10. incineration treatment method according to claim 9, it is characterised in that the flue gas produced after second-time burning by The smoke eliminator being connected with pulverized-coal fired boiler carries out purified treatment.
- 11. burning processing system according to claim 9, it is characterised in that the row of the smoke outlet (11) of the incinerator 5% of smoke no more than the burner hearth inlet air total amount of pulverized-coal fired boiler (2).
- 12. incineration treatment method according to claim 9, it is characterised in that the flame of centre temperature of the pulverized-coal fired boiler Higher than 1500 DEG C.
- 13. incineration treatment method according to claim 9, it is characterised in that the flue gas entered in the pulverized-coal fired boiler exists Residence time in pulverized-coal fired boiler is more than 2s.
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| CN112963844A (en) * | 2021-03-24 | 2021-06-15 | 北京大学 | Novel method and device for utilizing medicine solid waste |
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