CN108506938A - A kind of coal-fired boiler classified method and system for burning the waste containing biomass - Google Patents
A kind of coal-fired boiler classified method and system for burning the waste containing biomass Download PDFInfo
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- CN108506938A CN108506938A CN201711388144.9A CN201711388144A CN108506938A CN 108506938 A CN108506938 A CN 108506938A CN 201711388144 A CN201711388144 A CN 201711388144A CN 108506938 A CN108506938 A CN 108506938A
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- burning
- containing biomass
- coal
- waste
- waste containing
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- 239000002699 waste material Substances 0.000 title claims abstract description 140
- 239000002028 Biomass Substances 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims description 43
- 238000002485 combustion reaction Methods 0.000 claims description 34
- 239000002893 slag Substances 0.000 claims description 24
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 8
- 239000002817 coal dust Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000001771 impaired effect Effects 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 206010020843 Hyperthermia Diseases 0.000 claims description 3
- 230000036031 hyperthermia Effects 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- 239000010813 municipal solid waste Substances 0.000 abstract description 19
- 239000003245 coal Substances 0.000 abstract description 16
- 230000001473 noxious effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000505 pernicious effect Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000002671 adjuvant Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010828 animal waste Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000010849 combustible waste Substances 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- -1 hydrobiontic alga Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/10—Combustion in two or more stages
- F23G2202/105—Combustion in two or more stages with waste supply in stages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The present invention provides a kind of coal-fired boiler classified method and systems for burning the waste containing biomass,On the one hand,It is set as multiple hollow pipes parallel arrangements by the way that burning platform will be decomposed,There are certain gaps between the hollow pipe,Retention (stop) space of the waste containing biomass is played using the pipeline support,Utilize the advantage of coal-burning boiler high temperature incineration,The waste rubbish containing biomass being sent into from first charging aperture is fully burnt,On the other hand,By by one rotatably the furnace bottom that forms of rolling band with band-like face burn fire grate and be combined with thermal power plant's pulverized-coal fired boiler is ingenious,The high-temperature residual heat in the dry bottom hopper region below the burner hearth of thermal power plant's pulverized-coal fired boiler is utilized,The waste containing biomass being sent into from second charging aperture is carried out to burn removal noxious pollutant,So that entire waste treatment effeciency is high,Effect is good,Reduce the investment of special construction waste incinerator,Operating cost substantially reduces.The present invention can dissolve the waste containing biomass according to using coal-burning boiler, not only realize the recycling of rubbish, while also fully decomposing bioxin using coal-burning boiler high temperature gas flow, realize that waste is innoxious.
Description
Technical field
The present invention relates to the method and systems that a kind of coal-burning boiler burns biomass, more particularly, to discarded containing biomass
Object is directly entered the method and system of pulverized-coal fired boiler fractional combustion decomposition.
Background technology
The municipal refuse (waste) in China includes the combustible waste material containing biomass, the wherein money of biomass
Source includes mainly farm-forestry crop waste, hydrobiontic alga, organic waste (garbage), animal wastes etc..Due to population crowd
It is more, so resource reserve very abundant.And current urban waste generally comprises (1) using technology and formation solid fuel use is made
Alcohol fuel is made in power generation, (2), (3) are gasificated into fuel gas generation, (4) crack liquefaction etc..
Wherein, above-mentioned technology (1) is higher to the quality requirements of the waste containing biomass, generally requires homogeneous, water
It is point less, calorific value is higher, molding fuel convenience in transport and recycling, but cost is higher and turning sludge into fuel ratio is relatively low, engineering
Change very poor using economy；Technology (2) applies in general to farm-forestry crop, and ingredient requirement is stringent, and key technology difficulty is broken through, Cheng Chancheng
This is high；Technology (3) technology relative maturity, but it is small, and stable operation, tar are removed and the technologies such as gas purification need
It improves；Technology (4) requires the moisture of the waste containing biomass few, and ingredient requirement is stringent, and technology is in the starting stage.
Although above-mentioned technology has carried out extensive work in development test, be limited by ingredient requirement harshness, small scale, at
The factors such as this height, efficiency are low, technology is immature, the industrialization facility for capableing of extensive stable operation are few, it is difficult to fully achieve
The recycling of waste containing biomass, minimizing and innoxious, cause the waste containing biomass that can develop and utilize progress
Slowly.
Currently, a kind of common method is to handle above-mentioned municipal refuse using burning, this just needs special incinerator,
And in order to remove the pernicious gases such as noxious material, such as bioxin, the temperature needs of burning are higher.But this will specially build
Vertical special incinerator (Burning Room), cost of investment is higher.Existing waste incineration room needs specially to build waste incinerator, and one
As burned using low temperature, such as the Chinese patent application of Publication No. CN106969363A discloses a kind of incinerator, it is in stove
The first fire grate and the second fire grate are set gradually in vivo, and driver connects the first fire grate and the second fire grate, in the first fire grate and second
Fire grate lower end is respectively provided with draft chamber, and ventilator is arranged in draft chamber；In the furnace body other side, pipeline of slagging tap, pipeline one of slagging tap are set
Side connects the second fire grate, and slagging tap, collecting box is arranged in pipeline other side lower end；Exhaust outlet is set in furnace body upper end, in exhaust outlet
Level-one refrigerator is set；In exhaust outlet and furnace body junction, nano adsorption layer is set.Rubbish is stirred powder in feeding warehouse
Broken, drying, improves combustion efficiency, can ensure that the incineration firing after crushing is abundant by the first fire grate and the second fire grate, and lead to
It crosses collecting box to be collected material residue, environmental protection.The hot gas of generation is adsorbed by nano adsorption layer, and passes through level-one
Refrigerator freezes, and is discharged by exhaust outlet, environmental protection.This incinerator will produce many pernicious gases, exclude,
It needs that special device is arranged using either physically or chemically removing removing and harmful gas in flue.If high-temp combustion, it is also desirable to auxiliary
Help fueling.
In addition, in order to fully energy saving, also there is a kind of burning boiler to generate electricity using incineration firing, currently, utilizing rubbish
Rubbish power generation is very universal, still, due to lacking high-temp combustion, the pernicious gases such as removal noxious material, such as bioxin, effect
It is very poor, and need other combustion adjuvant to provide device when combustion refuse and combustion adjuvant is provided.
Such as the Chinese invention patent that notification number is CN206037058U discloses a kind of disposed waste generating energy boiler,
Including steam generator, combustion furnace, which is characterized in that the steam generator is located at combustion furnace top position, the steaming
Vapour generator is equipped with heating water layer with combustion furnace circumferential periphery；Exhaust tube, the exhaust tube are equipped with above the combustion furnace
Small generators are equipped with, filter is equipped with below the combustion furnace, are that combustion ash exports below the filter, the burning
Stove lower end is equipped with air intake vent, and the air intake vent is equipped with air blower, is equipped with inclined plate in the combustion furnace, on the inclined plate
Equipped with combustion-supporting, carrier chain is equipped with above the inclined plate, the carrier chain drives equipped with motor, above the carrier chain
Equipped with combustion refuse slot, the combustion refuse slot is equipped with blender.The garbage power power economized boiler has energy-saving and emission-reduction
Effect.However, this garbage power needs to build special burning boiler, and it is of high cost, moreover, the burning that reach a high temperature, needs
It is also higher to the leading portion processing requirement of rubbish using combustion adjuvant.
Therefore, people always search for can facilitating waste of the burning containing biomass but also effectively remove noxious material,
Reduce investment, it is desirable to can burn away the refuse under the high temperature conditions, effectively remove the pernicious gases such as bioxin, and can utilize existing
Energy effective utilization containing the waste material of biomass or the burning of other waste materials is reduced cost, reduces and throw by equipment
Money, but to all not solving the technical problem very well at present.
Invention content
The purpose of the present invention provides a kind of based on coal-burning boiler exactly in order to overcome above-mentioned the shortcomings of the prior art
The system for burning the waste containing biomass is realized discarded containing biomass to greatest extent using the advantage of existing coal-burning boiler
Object decomposition combustion provides new approach for the consumption of the waste containing biomass, while providing the new supplement energy.
In order to achieve the above-mentioned object of the invention, it is provided by the invention it is a kind of utilize coal-burning boiler burn the waste containing biomass
Method, it includes：
It is equipped with first charging aperture in the furnace wall at the burner hearth position of coal-burning boiler；
It is equipped in the inner wall of the lower section of the first charging aperture, burner hearth for carrying and burning the waste containing biomass
Burn platform；
Carrying out cooling to the burning platform prevents burning platform impaired；
The waste transport containing biomass that will be burned is collected near the first charging aperture；
The waste containing biomass being collected into is fed in the burning platform so as to from described discarded containing biomass
Object is decomposed using hyperthermia radiation in the burner hearth on the burning platform, is burnt；
It is equipped with second charging aperture in the furnace wall of the lower section of the dry bottom hopper of the burner hearth；
The waste containing biomass is brought into from the second charging aperture in the outside of the second charging aperture, and described
The lower section of dry bottom hopper is constantly pushed to the slag notch, and the waste containing biomass is during being pushed by stove
Coal dust suspension combustion is brought in thorax radiations heat energy and heat burning；And
Product through the waste containing biomass described in burning is discharged from the slag notch.
Further, the burning platform is made by several pipelines being arranged side by side.
Further, the burning platform dips down certain angle in the horizontal direction.
Further, the certain angle is 5-30 °, and one side can allow into burner hearth 101 containing biomass in this way
Waste, which can rest on, burns 101 upper certain time of platform, fully to burn, meanwhile, the lime-ash after burning is again flat from burning
It is slided on platform 6, falls into cold gray area.
Further, the feed inlet outside storage the waste containing biomass space by the second charging aperture with
A closed space is constituted inside the burner hearth of negative pressure itself together.
Further, during the lower section of the dry bottom hopper is constantly pushed to the slag notch, boiler, which is blown, is
A system wherein branch is introduced into the lower section of dry bottom hopper and the waste containing biomass being pushed into is promoted further to burn.
Further, it is continuous that the furnace bottom that the waste containing biomass is moved in the lower section of the dry bottom hopper burns fire grate
It is pushed to the slag notch, and it is horizontal by having the fire grate segment of ventilation gap to constitute between each other that the furnace bottom, which burns fire grate,
Band-like face, the waste containing biomass are rested on band dress face and are incinerated.
A kind of system for burning the waste containing biomass using coal-burning boiler provided by the invention, it includes
For burn the waste containing biomass coal-burning boiler burner hearth；
First charging aperture in the furnace wall setting of the burner hearth is being set；
It is equipped in the lower section of the first charging aperture, the furnace wall for carrying and burning burning for the waste containing biomass
Burn platform；
For carrying out cooling cooling system to the burning platform；
The waste of the burning containing biomass is transported into first charging aperture and is advanced to institute from the first charging aperture
State the feeding system for burning platform so as to burning；
One is equipped with second charging aperture in the furnace wall of the lower section of the dry bottom hopper of the burner hearth；And
One furnace bottom burns fire grate, and the furnace bottom burns fire grate movably there is the rolling band in band-like face to form by one, described
Rolling band is driven and loopy moving by a power-equipment, and part of it is arranged in the outside of the feed inlet, and another part setting exists
The lower section of dry bottom hopper in the burner hearth enters on the band-like face outside the second charging aperture and contains biology in this way
The waste of matter can be outside burner hearth into being incinerated below the excessively described dry bottom hopper, and the slag after burning takes one to by the rolling band and goes out
Cinder notch is discharged.
Further, the burning platform is made by several hollow pipes being arranged side by side.
Further, the burning platform further comprises inlet header and outlet header, and institute is arranged in the hollow pipe
It states between inlet header and outlet header, the inlet header is connected with affiliated cooling system, is equipped between the hollow pipe
Certain gap is to keep combustion medium to circulate.
Further, the decomposition burns platform with the furnace wall close to arrangement, and certain angle that dips down in the horizontal direction
Degree, 5-30 ° of range.
Further, the cooling system includes support cooling rod, and the furnace wall of the support cooling rod and the burner hearth is fixed
And the decomposition is supported to burn platform.
Further, the feeding system includes feed bin and batcher, and the batcher pushes the waste containing biomass
To burning above platform, its transport on fire grate is realized using the extruding force between the waste, by controlling push speed
It spends to adjust the waste containing biomass in the residence time decomposed on the fire grate for burning platform.
Further, for the cooling system quoted from coal-burning boiler existing system, cooling medium includes any of water, oil, air
Kind.
Further, the cooling system is quoted from coal-burning boiler existing system.
Further, pressure, temperature and flow measuring element are respectively set on the pipeline of the cooling system, and is arranged corresponding
Alarming value and fusing value, cooling air quantity is adjusted according to the variation of pressure and flow and enters the inlet amount of burner hearth, passes through cooling
Pitch adjusts cooling flow, and inlet amount is adjusted by batcher.
Further, the furnace bottom burns the rolling band of fire grate equipped with several fire grate segments.
Further, it further includes a frame and an idler wheel that the furnace bottom, which burns fire grate, and the frame supports the entire furnace bottom
Fire grate is burned, ventilation gaps are equipped between the piece and piece of the fire grate segment, so that the air entered outside the burner hearth passes through institute
It states ventilation gaps and enters the waste containing biomass being located in the rolling band, wherein the idler wheel is by the power-equipment band
It moves and rotates, to drive the rolling band to move.
Further, furnace bottom incinerator ranking is in the burner hearth of the part and negative pressure of the outside of the burner hearth itself
It is internal to constitute a closed space together to ensure to enter the smelly of the waste containing biomass on furnace bottom burning fire grate
Gas is sucked by the negative pressure in the burner hearth.
Further, further include a charging gear for being used for storing the waste to be processed containing biomass, the feed dress
Install the top of the rolling band outside the burner hearth, the drain hole that lower end is equipped with, the waste containing biomass is from blowing
Mouth is fallen in the rolling band.
Further, air needed for burning fire grate is quoted from boiler supply air system, including First air, Secondary Air, sealing air, preferably
First air enters fire grate after carrying out pressure regulation shunting.
One aspect of the present invention is set as multiple hollow pipes parallel arrangements, the hollow pipe by that will decompose burning platform
Between there are certain gap, retention (stop) space of the waste containing biomass is played using the pipeline support, utilizes combustion
The advantage of coal burning boiler high temperature incineration so that from first charging aperture be sent into the waste containing biomass can rubbish fully burn,
On the other hand, by by one, rotatably to burn fire grate ingenious with thermal power plant pulverized-coal fired boiler for the furnace bottom that forms of rolling band with band-like face
It is combined, the high-temperature residual heat in the dry bottom hopper region below the burner hearth of thermal power plant's pulverized-coal fired boiler is utilized, will be sent from second charging aperture
The waste containing biomass entered carries out burning removal noxious pollutant so that entire waste treatment effeciency is high, and effect is good, reduces
The investment of special construction waste incinerator, operating cost substantially reduce.The present invention can contain life according to using coal-burning boiler consumption
The waste of substance, not only realizes the recycling of rubbish, while also fully decomposing bioxin using coal-burning boiler high temperature gas flow, real
Existing waste is innoxious.
Description of the drawings
This attached drawing is to provide further understanding of the invention, they are described and constitute part of this application, attached
The embodiment of the present invention is shown, and plays the part of the description and interpretation present invention together with this specification.
Fig. 1 is the structural schematic diagram of presently preferred embodiments of the present invention；
Fig. 2 is that the structural schematic diagram of platform is burned in the decomposition of the present invention；
Fig. 3 is the structural schematic diagram of feeding system of the present invention；
Fig. 4 is that furnace wall carries out water screen tube " around stake " arrangement schematic diagram at feed inlet；
The furnace bottom of Fig. 5 present invention burns the structural schematic diagram of fire grate.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram for the existing general coal fired boiler of power plant that the present invention utilizes, and is related to super-pressure, Asia
The various types coal-burning boiler such as critical, overcritical.The present invention provides a kind of side of waste of the coal-burning boiler burning containing biomass
Method and system, as shown in Fig. 1, including the burner hearth 1 of coal-fired power station boiler, burning platform 6, feeding system 4 and cooling system 7.
Feeding system 4 includes feed bin 44, batcher 45 and level-sensing device 46.
Waste containing biomass be include agricultural stalk, furniture waste material, office waste, food waste residue, house refuse etc.
Solid waste inside, size are no more than 100 × 100 × 100mm, remaining metal, brick, electronics device in solid waste
Part weight accounting is no more than 10%, and the moisture in solid waste is no more than 30%.
It is provided with first charging aperture 41 in the furnace wall of the burner hearth 101 of coal-fired power station boiler 100, the setting of first charging aperture absolute altitude exists
Between lower layer's burner and furnace arch, furnace nose, it is equipped in the furnace wall 102 of the lower section of first charging aperture 41, burner hearth and is used for burning containing biomass
Waste burning platform 6.Feeding system 4 is equipped near first charging aperture 41 in the outside of coal-fired power station boiler 100,
Platform 6 is burned for the waste containing biomass being collected into be transported to from first charging aperture 41.
Burner hearth 101 is the portions such as the coal dust firing region, including water-cooling wall, burner, combustion air, dry bottom hopper of coal-burning boiler
Part is related to the various types coal-burning boiler such as super-pressure, subcritical, overcritical.
Referring back to Fig. 1, the lower section of burner hearth 1 is dry bottom hopper 50, the lower section of dry bottom hopper 50 be equipped with furnace bottom burn fire grate 24, give
Expect device 19 and slag notch 22.In addition, being equipped with feed inlet 49 on the furnace wall of the lower section of the dry bottom hopper of the burner hearth (see Fig. 5).
Referring to Fig. 1,6 side of platform is burned with the furnace wall 102 of burner hearth 101 close to arrangement, in itself and 102 junction of furnace wall
First charging aperture 41 is arranged in top, is connected with feeding system 4, the waste containing biomass is entered by first charging aperture 41 in this way
On fire grate, is gradually decomposed, burnt by radiant heat red-hot in burner hearth.The fire grate of platform 6 is burned perpendicular to 102 direction of furnace wall
Both sides have a slightly higher fence, fence is linked together with fire grate and cooling air can be in the two internal run-through.
Coal-burning boiler is formed using powdered pulverized coal particle suspension combustion in hearth zone and stablizes red-hot flow field, in flame
Heart temperature is more than 1200 DEG C, and specific surface area is generated after coal dust firing and is more than 200m2The oxides such as calcium, aluminium, the magnesium of/kg, these oxygen
Compound quality is loose, and adsorption capacity is strong, can absorb the harmful substance that the castoff burning containing biomass generates.
Referring back to Fig. 1, burns platform 6 and the inner wall at burner hearth position 11, and the certain angle that dips down in the horizontal direction is set,
Usually at 5-30 °, it on the one hand can allow the waste containing biomass into burner hearth 101 that can rest in this way and burn platform 101
Upper certain time, fully to burn, meanwhile, the lime-ash after burning is slided from burning platform 6 again, falls into cold gray area.
In addition, burning platform 6 is in temperature in 1000 DEG C or more of burner hearth 101, it is necessary to be equipped with cooling system 7, utilize
Cooling water, cooling oil or air are cooled down to burning platform 6, preferably cooling water, prevent burning platform 6 impaired.
The cooling system 7 includes support cooling rod 77, cooling regulating valve 78, cooling pipe 79.In addition, can also be equipped with pressure
Force snesor, thermocouple and flow measurement device (not illustrated in figure), they are that temperature or pressure is commonly checked or measured
Etc. parameters component or element.
Referring to Fig. 2, burning platform 6 is primary combustion zone of the waste containing biomass in coal-burning boiler, and dimension
The support platform of waste enough burning times containing biomass is held, it uses and is arranged side by side and is passed through by several hollow pipes 21
The small-sized fire grate structure that inlet header is connected with outlet header.Hollow pipe 21 is between each other by group between fin 22 and gap 23
At the horizontal structure of hollow pipe 21 and the formation seamless connectivity of fin 22, the percolate of the waste generation of biomass is at this
Evaporation, decomposition during being stopped on horizontal structure, 23 part of gap so that on burner hearth inner air and fire grate that waste is formed pair
Stream promotes burning while the particle in afterburnt being made to fall into dry bottom hopper by the gap, forms clinker.
Referring to Fig. 4, furnace wall 102 carries out water screen tube 602 " around stake " arrangement, furnace wall 102 and first at first charging aperture
Feeder channel is formed negative pressure state using the negative pressure of coal-burning boiler, prevents peculiar smell to ambient enviroment by 41 seamless welding of feed inlet
Diffusion.
Fig. 3 is the schematic diagram of feeding system 4, wherein feed bin 44 can be used for the storage of the waste containing biomass, can be attached
The measuring instrumentss such as band level-sensing device, thermocouple measure volume and temperature.The lower section of feed bin 44 is equipped with discharging lock gate hatch 41, and is arranged swollen
Swollen section 42 is connected with batcher.Discharging lock gate hatch 41 can control the waste containing biomass in feed bin 44 to enter batcher 45.
Batcher 45 is arranged in the lower section of expansion joint 42, is made of charging ram 451, pusher front end-plate 452 and feeder channel 453.It gives
Expect that channel 453 is a pipeline configuration, horizontally disposed, top is connected to feed bin 4, and right side is connected with burning platform 6 is decomposed.Before pusher
The left side in feeder channel 453 is arranged in end plate 452, is connected with charging ram 451.Charging ram 451, can be horizontal by powered
It is mobile, in this way, pusher front end-plate 452 moves horizontally in feeder channel 453, contain biomass by what is fallen from the feed bin 4 of top
Waste push by first charging aperture 101 shift onto decomposition burn platform 6 on.
Waste containing biomass is put forward equipment and is transported to feed bin 44 by struggling against, according to the selection of the material position of feed bin 44 plus the frequency in storehouse
And speed, discharging lock gate hatch 41 and batcher 45 keep linking, the speed that batcher 45 keeps certain is pushed away toward burning platform is decomposed
The waste (rubbish) containing biomass is sent, in this way, just realizing that rubbish is decomposing burning platform 6 using the extruding force between rubbish
Transport (movement) on fire grate is decomposing the fire grate for burning platform 6 by controlling feeding coal to adjust the waste containing biomass
On residence time, realize that burning is abundant.
In addition, burning platform 6 is equipped with inner wall temperature measuring device, industrial television (monitoring is set near charge door
Device), cooling wind flow is adjusted according to inner wall temperature, delivery rate, structure branch are adjusted according to the thickness of feed layer of industrial television observation
Support is fixed using stove inner bracing piece and stove external fastening element, and horizontal position is flushed with material inlet.
Meanwhile it being formed surely using the support cooling rod 77 of hollow circular-tube structure with platform 6, burner hearth 101, furnace wall 102 is burned
Solid three-legged structure with support cooling rod 77 be hollow circular-tube structure, meanwhile, hollow interior can be passed through the cooling water of cooling system 7
To maintain supporting rod 7 can be within the temperature range of security settings, another way cooling water be sent into the above-mentioned import decomposed and burn platform 6
Header inside the hollow pipe 21 of fire grate tube bank, and returns to coal-burning boiler existing system by outlet header.
Moreover, the cooling water of above-mentioned cooling system is preferably quoted from the condensate system of coal-burning boiler, cooling water follows boiler
Start and stop, no matter whether feeding system feeds.The cooling pipe 79 of cooling system 7 is equipped with two-way, burns platform 6 with decomposition all the way
Inlet header is connected, and another way is connected with support cooling rod 77.
Pressure, temperature and flow measuring element are respectively set on cooling system 7, and corresponding alarming value and fusing are set
Value adjusts cooling air quantity according to the variation of the pressure of said determination and flow and enters the inlet amount of burner hearth, passes through cooling wind tune
Door adjusts air quantity, and inlet amount is adjusted by batcher 45.
Temperature element (TE 10,11,12 is respectively set in decomposing the boiler flue burned above platform 6, measures each section in real time
Flue-gas temperature, to adjust the factors such as boiler capacity, coal and soot-blowing mode, when ensureing the enough stop of flue gas of refuse burning
Between.
Referring back to Fig. 1 and Fig. 5, it is that a kind of of the present invention is burned using coal-burning boiler containing biomass that furnace bottom, which burns fire grate 24,
Another primary combustion zone in existing coal-burning boiler of the system of waste.Furnace bottom burn fire grate 4 include frame 120,
Idler wheel 114, the rolling band 50 and fire grate segment 141 rotatably by one with band-like face.Fire grate segment 141 is manufactured by cast iron, is assembled in
In rolling band 50, in this way, keeping necessary ventilation gaps between its piece and piece, contain so that the air of entrance is entered by the gap
The material bed promotion of the waste of biomass is burnt.Furnace bottom burns the outside of the part setting second charging aperture 49 of fire grate 24,
Another part be arranged second charging aperture 49 and pulverized-coal fired boiler be used for that the slag notch 22 of lime-ash is discharged between and be arranged described
The lower section of the dry bottom hopper 50 of burner hearth 1.Idler wheel 114 is driven by a common power-equipment and is rotated, and then rolling band 50 moves, to
Fire grate segment 141 is driven to move.In this way, from the band-like face that the outside of second charging aperture 49 enters rolling band 50 containing biomass
Waste can be incinerated outside burner hearth 1 into the lower section of dry bottom hopper 50, and the slag after burning takes slag notch 22 to by rolling band 50
Discharge.
Charging gear 19 is used for storing the waste containing biomass, in this way, the waste containing biomass is from outside burner hearth 1
One drain hole even drop down of the hopper 91 of the charging gear 19 of the fire grate front end in face is burned in furnace bottom on fire grate 24, in addition, giving
Expect that the above-mentioned drain hole of device 19 is equipped with insertion plate door 18, is inserted in this way, the material bed thickness of the waste containing biomass is available
Moving left and right for plate door 18 is adjusted.With moving backward for fire grate segment 141, when entering the lower section of dry bottom hopper 50, containing life
The waste of substance is by catching fire, burning until burning out.
The position of the correspondence furnace wall of fire grate 24 is burned in furnace bottom or is equipped with several outsides by slag extractor shell both sides and head
Air-supply access aperture 142, outside air-supply may be derived from boiler supply air system, preferably First air, one point taken in heat primary air main pipe
Branch accesses header, and branched pipe setting pressure regulator valve is adjusted air pressure air flow, air hose is drawn in the header and is communicated with hole 142,
Heat primary air can be easy to enter in stove by the hole 142, and the ventilation gaps between the piece and piece for passing through fire grate segment 141 enter object
The bed of material promotes the burning of rubbish.The available manually or mechanically method of lime-ash after burning-up is discharged from slag notch 22.Needed for waste incineration
The primary power wanted comes from radiation of burner hearth and high temperature furnace slag.Certainly, outside air-supply can also be the wind being derived from outside boiler.
In addition, in the present embodiment, frame 120 has sealing function, can will be positioned at the outer of the second charging aperture 49 of burner hearth 1
Portion constitutes a closed space together with the inside of the burner hearth 1 of negative pressure itself, and containing for fire grate 24 is burned to ensure to enter furnace bottom
The foul smell of the waste of biomass has well solved refuse disposal installation by the negative pressure sucking burner hearth 1 of 1 inside of burner hearth itself
Foul smell the problem of leaking.
In addition, the charging gear 19 of the present invention can seal against each other the charging gear 19 for connecting, sealing in this way with frame 120
It may operate under negative pressure state, it is excessive to avoid domestic waste peculiar smell.In addition, burning the mobile speed of fire grate 24 by control
Degree, can be such that it fully burns with burning time of the control material on fire grate 24.
By above description as can be seen that the creativeness of the present invention is also resided in traditional air-cooled dry-type slag discharging machine and fire
Pulverized coal power boiler is combined, using the transporting chain plate of air-cooled dry-type slag discharging machine as burning fire grate and using in coal-powder boiler
High temperature carries out the burning of rubbish and the pyrolytic processing of noxious pollutant.
The wind of access aperture 142 is up blown from the lower part for burning fire grate 24, primarily serves dry, loosening and combustion-supporting effect.
In particular, being usually in negative pressure state in coal-powder boiler operation, cooling wind is under the action of boiler furnace negative pressure, by slag extractor shell
The adjustable air outlet that both sides and head open up enters inside equipment, is then flowed up by the lower part of burning fire grate.Containing biomass
The required primary power of castoff burning come from radiation of burner hearth and high temperature furnace slag.
Before the waste containing biomass enters and burns fire grate 24, coal-burning boiler has been started up completion, is in stable
Under state, the radiant heat of coal dust firing formation in burner hearth 1 so that burn the burning situation that fire grate 24 is in stable, be suitable for containing
The larger situation of the waste calorific value and component fluctuation of biomass, adaptability is good, and burns fire grate 24 without spraying into auxiliary combustion
Material oil, the energy saving energy reduce cost.
By above description, a kind of method for burning the waste containing biomass using coal-burning boiler provided by the invention
Including：
It is equipped with first charging aperture 41 in the furnace wall at the position of the burner hearth 1 of coal-burning boiler；
It is equipped in the inner wall of the lower section of the first charging aperture 41, burner hearth 1 and is used for carrying and burning discarding containing biomass
The burning platform 6 of object；
Carrying out cooling to the burning platform 6 prevents burning platform 6 impaired；
The waste transport containing biomass that will be burned is collected near the first charging aperture 41；
The waste containing biomass being collected into is fed in the burning platform 6 so as to from described discarded containing biomass
Object is decomposed using hyperthermia radiation in the burner hearth on the burning platform 6, is burnt；
It is equipped with second charging aperture 49 in the furnace wall of the lower section of the dry bottom hopper 50 of the burner hearth；
The waste containing biomass is brought into from the second charging aperture 49 in the outside of the second charging aperture 49, and
The lower section of the dry bottom hopper 50 is constantly pushed to the slag notch 22, and the waste containing biomass is in the process being pushed into
In by the radiations heat energy that the middle coal dust suspension combustion of burner hearth 1 is brought heated burning；And
Product through the waste containing biomass described in burning is discharged from the slag notch 22.
It is completed in the environment of 200 DEG C to 500 DEG C since the synthetic reaction of bioxin is substantially, the present invention will contain biology
For the waste of matter directly as furnace combustion zone domain, furnace flame central temperature is more than 1200 DEG C, can make discarded containing biomass
More than object bioxin synthesis temperature ranges burning and combustion products stop 2s or more, decomposition dioxin precursor and burning
Bioxin is generated in the process.
One aspect of the present invention is set as multiple hollow pipes parallel arrangements, the hollow pipe by that will decompose burning platform
Between there are certain gap, retention (stop) space of the waste containing biomass is played using the pipeline support, utilizes combustion
The advantage of coal burning boiler high temperature incineration so that from first charging aperture be sent into the waste containing biomass can rubbish fully burn,
On the other hand, by by one, rotatably to burn fire grate ingenious with thermal power plant pulverized-coal fired boiler for the furnace bottom that forms of rolling band with band-like face
It is combined, the high-temperature residual heat in the dry bottom hopper region below the burner hearth of thermal power plant's pulverized-coal fired boiler is utilized, will be sent from second charging aperture
The waste containing biomass entered carries out burning removal noxious pollutant so that entire waste treatment effeciency is high, and effect is good, reduces
The investment of special construction waste incinerator, operating cost substantially reduce.The present invention can contain life according to using coal-burning boiler consumption
The waste of substance, not only realizes the recycling of rubbish, while also fully decomposing bioxin using coal-burning boiler high temperature gas flow, real
Existing waste is innoxious.
In particular, a kind of coal-burning boiler provided by the invention burns the method and system of the waste containing biomass, fully
Using the coal-burning boiler in existing power station, coal-burning boiler burner hearth flame kernel temperature is higher than 400 DEG C of conventional rubbish incinerator or more,
So that organic matter thoroughly decomposes, flue gas reaches combustion after the ultra-clean exhaust system of coal-burning boiler (SCR+ bag-type dusts+wet desulphurization)
Coal burning boiler and the dual discharge standard of waste incinerator, release heat enters turbine generator system after the waste combustion containing biomass
System, it is achieving environmental protection and energy saving.
Finally it is noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, it will be understood by those of ordinary skill in the art that, to the technical side of the present invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Right in.
Claims (18)
1. a kind of coal-fired boiler classified method for burning the waste containing biomass, which is characterized in that it includes：
It is equipped with first charging aperture in the furnace wall at the burner hearth position of coal-burning boiler；
It is equipped with the burning for being used for carrying and burn the waste containing biomass in the inner wall of the lower section of the first charging aperture, burner hearth
Platform；
Carrying out cooling to the burning platform prevents burning platform impaired；
The waste transport containing biomass that will be burned is collected near the first charging aperture；
The waste containing biomass being collected into is fed in the burning platform to exist from the waste containing biomass
So as to hyperthermia radiation decomposition, burning in the utilization burner hearth on the burning platform；
It is equipped with second charging aperture in the furnace wall of the lower section of the dry bottom hopper of the burner hearth；
The waste containing biomass is brought into from the second charging aperture in the outside of the second charging aperture, and in the cold ash
The lower section of bucket is constantly pushed to the slag notch, and the waste containing biomass is during being pushed by burner hearth
Radiations heat energy that coal dust suspension combustion is brought and heat burning；And
Product through the waste containing biomass described in burning is discharged from the slag notch.
2. the coal-fired boiler classified method for burning the waste containing biomass as described in claim 1, which is characterized in that described
Platform is burned to be made by several pipelines being arranged side by side.
3. the coal-fired boiler classified method for burning the waste containing biomass as described in claim 1, which is characterized in that described
Platform is burned to dip down in the horizontal direction certain angle.
4. the coal-fired boiler classified method for burning the waste containing biomass as claimed in claim 3, which is characterized in that described
Certain angle is 5-30 °, on the one hand can allow the waste containing biomass into burner hearth 101 that can rest on burning platform in this way
101 upper certain times, fully to burn, meanwhile, the lime-ash after burning is slided from burning platform 6 again, falls into cold gray area.
5. the coal-fired boiler classified method for burning the waste containing biomass as described in claim 1, which is characterized in that described
The burner hearth that the space of waste of the outside storage containing biomass of feed inlet passes through the second charging aperture and negative pressure itself
It is internal to constitute a closed space together.
6. the coal-fired boiler classified method for burning the waste containing biomass as described in claim 1, which is characterized in that in institute
State dry bottom hopper lower section be constantly pushed to the slag notch during, a boiler supply air system wherein branch is introduced into cold
The lower section of ash bucket and promote the waste containing biomass being pushed into further to burn.
7. the coal-fired boiler classified method for burning the waste containing biomass as described in claim 1, which is characterized in that described
The furnace bottom that waste containing biomass is moved in the lower section of the dry bottom hopper burns fire grate and is constantly pushed to the slag notch, and
It is to constitute horizontal band-like face by the fire grate segment between each other with ventilation gap that the furnace bottom, which burns fire grate, described to contain biomass
Waste rest on band dress face and be incinerated.
8. a kind of coal-fired boiler classified system for burning the waste containing biomass, which is characterized in that it includes
For burn the waste containing biomass coal-burning boiler burner hearth；
First charging aperture in the furnace wall setting of the burner hearth is being set；
The burning for being used for carrying and burning the waste containing biomass is equipped in the lower section of the first charging aperture, the furnace wall to put down
Platform；
For carrying out cooling cooling system to the burning platform；
The waste of the burning containing biomass is transported into first charging aperture and is advanced to described burn from the first charging aperture
Platform is burnt so as to the feeding system of burning；
One is equipped with second charging aperture in the furnace wall of the lower section of the dry bottom hopper of the burner hearth；And
One furnace bottom burns fire grate, and the furnace bottom burns fire grate movably there is the rolling band in band-like face to form by one, the rolling band
It is driven and loopy moving by a power-equipment, part of it is arranged in the outside of the feed inlet, and another part is arranged described
The lower section of dry bottom hopper in burner hearth, entered outside the second charging aperture in this way on the band-like face containing biomass
Waste can be outside burner hearth into being incinerated below the excessively described dry bottom hopper, and the slag after burning takes a slag notch to by the rolling band
Discharge.
9. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 8, which is characterized in that
The burning platform is made by several hollow pipes being arranged side by side.
10. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 9, feature exist
Further comprise inlet header and outlet header in, the burning platform, the hollow pipe be arranged the inlet header and
Between outlet header, the inlet header is connected with affiliated cooling system, between the hollow pipe be equipped with certain gap with
Keep combustion medium circulation.
11. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 10, feature exist
In the decomposition burns platform with the furnace wall close to arrangement, and the certain angle that dips down in the horizontal direction, 5-30 ° of range.
12. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 11, feature exist
In the cooling system includes support cooling rod, described to support the furnace wall of cooling rod and the burner hearth to fix and support described point
Solution burns platform.
13. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 8, feature exist
In the feeding system includes feed bin and batcher, and the waste containing biomass is pushed to and burns on platform by the batcher
Side, its transport on fire grate is realized using the extruding force between the waste, contains life by controlling pushing speed to adjust
The waste of substance is in the residence time decomposed on the fire grate for burning platform.
14. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 8, feature exist
In, the cooling system quoted from coal-burning boiler existing system, cooling medium include water, oil, air it is any.
15. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 8, feature exist
In the rolling band that the furnace bottom burns fire grate is equipped with several fire grate segments.
16. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 15, feature exist
In it further includes a frame and an idler wheel that the furnace bottom, which burns fire grate, and the frame supports the entire furnace bottom to burn fire grate, described
Ventilation gaps are equipped between the piece and piece of fire grate segment, so that the air entered outside the burner hearth is entered by the ventilation gaps
The waste containing biomass in the rolling band, wherein the idler wheel is driven by the power-equipment and rotated, to band
The dynamic rolling band movement.
17. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 8, feature exist
In the furnace bottom incinerator ranking is constituted together with the inside of the burner hearth of the part and negative pressure of the outside of the burner hearth itself
One closed space is to ensure the foul smell for entering the waste containing biomass on furnace bottom burning fire grate by the negative pressure
It sucks in the burner hearth.
18. a kind of coal-fired boiler classified system for burning the waste containing biomass as claimed in claim 8, feature exist
In further including one being used for storing the charging gear of the waste to be processed containing biomass, the charging gear is arranged described
The top of rolling band outside burner hearth, the drain hole that lower end is equipped with, the waste containing biomass fall on the rolling from drain hole
It takes.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017102964467 | 2017-04-28 | ||
| CN201710296446 | 2017-04-28 | ||
| CN201710295089 | 2017-04-28 | ||
| CN2017102950892 | 2017-04-28 |
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| CN108506938A true CN108506938A (en) | 2018-09-07 |
| CN108506938B CN108506938B (en) | 2019-11-29 |
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| CN113953073A (en) * | 2021-09-22 | 2022-01-21 | 国能龙源环保有限公司 | Large-scale coal fired boiler coupling is useless storage transportation feeding system useless admittedly |
| CN114144618A (en) * | 2019-07-05 | 2022-03-04 | 日立造船爱诺瓦公司 | Grate blocks for incineration grate |
| CN114719270A (en) * | 2022-03-11 | 2022-07-08 | 哈尔滨博深科技发展有限公司 | Pulverized coal fired boiler capable of directly mixing and burning garbage and harmless treatment method of mixed and burned garbage |
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| CN114719270A (en) * | 2022-03-11 | 2022-07-08 | 哈尔滨博深科技发展有限公司 | Pulverized coal fired boiler capable of directly mixing and burning garbage and harmless treatment method of mixed and burned garbage |
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| CN108506938B (en) | 2019-11-29 |
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