CN110285430A - A kind of small-scale municipal sludge and house refuse cooperate with incineration treatment method - Google Patents
A kind of small-scale municipal sludge and house refuse cooperate with incineration treatment method Download PDFInfo
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- CN110285430A CN110285430A CN201910560623.7A CN201910560623A CN110285430A CN 110285430 A CN110285430 A CN 110285430A CN 201910560623 A CN201910560623 A CN 201910560623A CN 110285430 A CN110285430 A CN 110285430A
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- sludge
- incineration
- flue gas
- house refuse
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- 239000010802 sludge Substances 0.000 title claims abstract description 184
- 238000000034 method Methods 0.000 title claims abstract description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000003546 flue gas Substances 0.000 claims abstract description 53
- 239000002918 waste heat Substances 0.000 claims abstract description 47
- 238000002485 combustion reaction Methods 0.000 claims abstract description 36
- 238000002309 gasification Methods 0.000 claims abstract description 35
- 238000001035 drying Methods 0.000 claims abstract description 34
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 28
- 238000000197 pyrolysis Methods 0.000 claims abstract description 24
- 238000000746 purification Methods 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims abstract description 9
- 239000010801 sewage sludge Substances 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 230000005587 bubbling Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 1
- 230000020169 heat generation Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000010791 domestic waste Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004071 soot Substances 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
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 108010034145 Helminth Proteins Proteins 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000185 dioxinlike effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 244000000013 helminth Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/12—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating using gaseous or liquid fuel
-
- 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
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- 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
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- 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
-
- 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
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/40—Gasification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/10—Supplementary heating arrangements using auxiliary fuel
- F23G2204/103—Supplementary heating arrangements using auxiliary fuel gaseous or liquid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The present invention relates to a kind of small-scale municipal sludges and house refuse to cooperate with incineration treatment method, including municipal sludge incineration system, house refuse coprocessing system, waste-heat recovery device and flue gas purification system；Municipal sludge incineration system includes sewage sludge feed device, sludge drying machine and the sludge incineration device being sequentially connected in series；House refuse coprocessing system includes the rubbish feeding device being serially connected and refuse pyrolysis gasification furnace；The outlet side of refuse pyrolysis gasification furnace is connected to sludge incineration device, and the pyrolytic gasification gas of generation is introduced assisted combustion device by blower；Waste-heat recovery device is waste heat boiler, the steam generated for heating boiler feed water is connected to a Turbo-generator Set, and Turbo-generator Set is generated electricity using the steam that waste heat boiler absorbs heat generation and supplemented for municipal sludge incineration system and domestic garbage treating system from electricity consumption；The level-one steam extraction of Turbo-generator Set is delivered to the drying and other treatment for being used for sludge in sludge drying machine as heat source；The flue gas generated after sludge incineration discharges after flue gas purification system processing is up to standard.
Description
Technical field
The present invention relates to municipal solid wastes disposal technical fields, and in particular to a kind of small-scale municipal sludge and life rubbish
Rubbish cooperates with incineration treatment method.
Background technique
Gradually attention with national departments concerned to the processing disposition of solid waste, relevant environmental protection standard gradually mention
Height, after domestic rubbish disposal treatment is implemented on a large scale, the processing of municipal sludge also becomes a very urgent problems.
Municipal sludge is currently generated from municipal sewage plant, the high organic content of municipal sludge, unstable, easy corruption and
Containing a large amount of germs, helminth and heavy metal contaminants, if municipal sludge is dealt with improperly, all can to water body, atmosphere and soil
It causes seriously to pollute.Compared with the fast lifting of the efficiency of domestic rubbish disposal, sewage treatment, place of the China about municipal sludge
Reason disposition situation very severe.Currently, the processing method of municipal sludge mainly has compost, landfill, bio-digestion and burning etc.,
In, burning after sludge drying is current one of mainstream technology, but since the calorific value of municipal sludge is relatively low, it is general aqueous
The Lower heat value of the municipal sludge of rate 40 ~ 60% only has 500 ~ 1500Kcal/kg, individually burns to municipal sludge, needs volume
Outer to increase larger amount of auxiliary fuel, cost of disposal is higher.
Currently, the main processing disposal options of house refuse are power generation by waste combustions, but project lesser for scale, life rubbish
Rubbish power generation by waste combustion project operation higher cost, fluctuation of service, area lesser for Output of Domestic Waste are not suitable for give birth to
Rubbish living carries out independent power generation by waste combustion, therefore, the house refuse in rural area is all landfill mostly, or even has and arbitrarily topple over
Phenomenon.
The yield of rural area most for China, municipal sludge and house refuse is all relatively fewer, general township
For town sewage treatment plant excess sludge about in 20-60t/d, general small towns Output of Domestic Waste is about 15-30t/d, therefore, for
It is separately higher using independent burning disposal cost of disposal for having to the house refuse handled and municipal sludge, therefore,
A kind of municipal sludge suitable for rural area and house refuse collaboration incineration treatment method are needed to improve the city of rural area
Political affairs sludge and domestic rubbish disposal scale and treatment effeciency, still, using garbage incinerating system by municipal sludge and house refuse
Carry out mixed burning, since municipal sludge moisture content is high, calorific value is low, directly with house refuse multifuel combustion when, the weight ratio with rubbish
No more than 10%, incineration firing state otherwise will affect, reduce flue-gas temperature, and then increase dioxin production quantity.
Notification number discloses a kind of common suitable for house refuse and municipal sludge for the Chinese patent of CN102607040B
The method of burning disposal specifically discloses on the basis of existing domestic garbage incineration equipment, increases at least a set of drying sludge
Equipment is placed in front of domestic garbage incineration equipment workshop section, and the high-temperature flue gas generated using waste incinerator is to wet municipal sludge
It is dried, municipal sludge after drying enters waste incinerator and burns together with house refuse, the flue gas recirculation after drying
It returns to incinerator to burn again, eliminates the harmful components in foul smell and house refuse and municipal sludge.But it is in the invention
It needs first to carry out waste incineration, then recycles the dry municipal sludge of incineration flue gas, last common burning, for rural area
Speech, this processing method system when garbage treatment quantity is smaller is unstable, is unable to operate normally and persistently mentions for municipal sludge drying
Heating load, while it is also required to provide additional fuel and multifuel combustion is carried out to municipal sludge and house refuse.
Summary of the invention
The present invention is not suitable for building large-scale power generation by waste combustion project for rural area municipal sludge and house refuse small scale
The problems such as, a kind of small-scale municipal sludge and house refuse collaboration incineration treatment method are provided, and then thoroughly solve rural area
The problems such as municipal sludge and domestic rubbish disposal are difficult to and processing cost is high.
Technical scheme is as follows:
A kind of small-scale municipal sludge and house refuse cooperate with incineration treatment method, including municipal sludge incineration system, life rubbish
Rubbish coprocessing system, waste-heat recovery device and flue gas purification system；The municipal sludge incineration system includes being sequentially connected in series
Sewage sludge feed device, sludge drying machine and sludge incineration device, the sludge in sludge drying machine are defeated by dewatered sludge conveyer
It send to sludge incineration device；The house refuse coprocessing system includes the rubbish feeding device being serially connected and rubbish heat
Gasification furnace is solved, house refuse is continuously introduced into refuse pyrolysis gasification furnace and is reacted；The outlet side of the refuse pyrolysis gasification furnace connects
Sludge incineration device is passed to, the pyrolytic gasification gas of generation is used for by blower introducing to sludge incineration device injection caburation gas
Assisted combustion device；The waste-heat recovery device is waste heat boiler, and the steam generated after heating boiler feed water is passed through steamer hair
In motor group, Turbo-generator Set absorbs the steam that heat generates using waste heat boiler and generates electricity for municipal sludge incineration system
It is supplemented with domestic garbage treating system from electricity consumption；The level-one steam extraction of the Turbo-generator Set is delivered to conduct in sludge drying machine
Heat source is used for the drying and other treatment of sludge, and the foul smell that sludge is generated by sludge drying machine processing introduces sludge incineration dress by blower
It is burned in setting；The flue gas generated after sludge incineration discharges after flue gas purification system processing is up to standard.
Further, the sewage sludge feed device includes wet mud storehouse and sludge feeder, and wet mud is stored in wet mud
Storehouse is delivered to sludge feeder, wet mud behind sludge discharging screw rod discharge wet mud storehouse, then through sludge screw-rod delivery pump
Sludge drying machine is continuously fed into after being mixed in sludge feeder.
Further, Han Shui Shuai≤85% of wet mud, it is 40 ~ 60% that sludge, which is dried to moisture content, in sludge drying machine.
Further, the sludge incineration device is the bubbling bed fluidized bed incinerator of vertical cylinder shape structure, including
Charging gear and burning furnace body；The charging gear passes through the side wall for burning furnace body and is fixed on side wall, and charging gear includes
Distributing device and setting gauge, distributing device are in T-shape structure, and transverse tube is arranged close to furnace body is burned；Two setting gauges are symmetricly set on cloth
The transverse tube two ends of glassware, one end of setting gauge are connected to distributing device, and the other end is connected to furnace body is burned, and pass through the rotation of setting gauge
Turn to sow sludge into the furnace chamber inner combustion into burning furnace body.
Further, structure is fixed on burning furnace body outer wall the assisted combustion device in a ring, including fuel gas transmission
Pipe and interval are fixed on gas supply pipe and jet port direction after outer wall burns the auxiliary combustion nozzle in burner hearth of the furnace body
Device circularizes the zone of flame in freeze profile via after the injection of auxiliary combustion injector quoted from the gasification gas of refuse pyrolysis gasification furnace.
Further, the lower furnace portion for burning furnace body is provided with the fluidized bed bed of material, on the fluidized bed bed of material further
Carry out destructive distillation, gasification and the burning of sludge.
Further, the assisted combustion device is located above the fluidized bed bed of material at 600 ~ 650mm；The setting gauge is located at
Above assisted combustion device at 500 ~ 550mm.
Further, the height that the waste heat boiler includes bracket group and is from top to bottom successively separately fixed in bracket group
Warm superheater, low temperature superheater and economizer；The high-temperature flue gas entered in waste heat boiler from top to bottom passes sequentially through high temperature mistake
Hot device and low temperature superheater, the water supply in waste heat boiler pass sequentially through low temperature superheater and high temperature superheater from the bottom to top, with into
Enter and generate superheated steam after the high-temperature flue gas in waste heat boiler is exchanged heat, economizer is for absorbing remaining high-temperature flue gas for following
Ring heats water supply, and the superheated steam of generation enters Turbo-generator Set；The high temperature superheater, low temperature superheater and economizer are equal
For pullable structure, it is slidably connected in bracket group respectively.
Further, the steam parameter of the waste heat boiler is 1.6 ~ 2.0MPa, and temperature is 320 ~ 350 DEG C.
Further, the flue gas purification system includes the flue gas chilling extracting tower and bag-type dust being connected to waste heat boiler
Device is provided with active carbon adding apparatus, the cigarette generated after burning on the pipeline that flue gas chilling extracting tower is connected to bag filter
Gas enters smoke stack emission by air-introduced machine after flue gas purification system processing is up to standard；The waste heat boiler, flue gas chilling depickling
Tower and bag filter capture the cured rear progress landfill disposal of the flying dust collected.
The invention has the following beneficial effects:
1, the pyrolytic gasification gas that domestic garbage pyrolysis gasification generates is introduced into substitute in municipal sludge incineration system and be assisted by the present invention
Fuel, with municipal sludge burning cooperate with processing, reduce because municipal sludge Lower heat value it is relatively low needed for increased natural gas/diesel
The consumption of equal auxiliary fuels, and domestic garbage pyrolysis have capacity it is big, it is innoxious it is significant, recycling is abundant, secondary pollution is small etc.
Feature realizes the innoxious of house refuse and quantization, also reduces Treatment of Sludge cost；Heat is burned using municipal sludge simultaneously
Amount generates steam and generates electricity, as supplementing from electricity consumption for municipal sludge incineration system；The cigarette that municipal sludge incineration system generates
Gas enters flue gas purification system processing rear discharge up to standard, and the present invention is suitable for rural area municipal sludge and Output of Domestic Waste
Small processing disposal system, is able to solve rural area municipal sludge and house refuse is jointly processed by and is difficult to and processing cost is high
Problem realizes the minimizing of municipal sludge and consumer waste incineration, innoxious and recycling, also achieves the circulation benefit of the energy
With.
2, the assisted combustion device of annular is arranged in the present invention on the bubbling bed fluidized bed incinerator for burning municipal sludge,
The municipal sludge feeding manner for changing fluidized bed incinerator, the municipal sludge into fluidized bed incinerator pass through auxiliary combustion first
The annular thermal-flame layer of device is burnt, then drops down onto the burning of the fluidized bed bed of material, the higher municipal sludge of water content is enable to fluidize
Normal high temperature incineration in bed incinerator guarantees the temperature of flue gas in fluidized bed incinerator at 850 DEG C or more, and dioxin-like chemical obtains
It is decomposed to abundant；On the other hand, direct between pyrolytic gasification gas and municipal sludge and municipal sludge in fluidized bed incinerator
Strong mixing, calorific value largely get a promotion, and increase the pyrolysis rate of sludge.
3, present invention configuration Turbo-generator Set generates electricity, and the superheated steam that waste heat boiler generates enters steam turbine power generation
Unit generates electricity, and generated electric power substantially meets the power demand of processing system itself, realizes self-sufficient, reduces
The cost of Treatment of Sludge.
4, the Waste Heat Boiler Design as heat reclaim unit is extraction-type structure by the present invention, eliminates Conventional fluidization bed
The soot blower that incinerator must configure burns the ashes of generation and enters in waste heat boiler under the carrying of high-temperature flue gas, maintenance,
High temperature superheater, low temperature superheater and economizer, which need to be only extracted, when maintenance and cleaning achieves that regular deashing function, meanwhile,
The demand of acetylene, compressed air needed for soot blower, steam etc. in incinerator is also reduced, operating cost is reduced.
5, the foul smell etc. generated in mud drying process of the present invention is fully entered in fluidized bed incinerator and is burned, without to outlet
It puts；Tail gas after burning is after flue gas purification system is handled, qualified discharge.
6, the municipal sludge that the receivable moisture content of the present invention is≤85%, it is de- to be greatly lowered sewage treatment plant excess sludge
The cost of water process.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is the section layout drawing of assisted combustion device in the present invention；
Fig. 3 is the section layout drawing of charging gear and burning furnace body in the present invention；
Fig. 4 is the sectional elevation of fluidized bed incinerator in the present invention；
Fig. 5 is the structural schematic diagram of waste heat boiler in the present invention.
Label in attached drawing indicates are as follows:
1, sewage sludge feed device；11, wet mud storehouse；12, sludge feeder；13, sludge discharging screw rod；14, sludge screw rod is defeated
Send pump；2, sludge drying machine；21, dewatered sludge conveyer；3, sludge incineration device；31, charging gear；311, distributing device；312,
Setting gauge；32, furnace body is burned；33, the fluidized bed bed of material；4, waste heat boiler；41, bracket group；42, high temperature superheater；43, low temperature mistake
Hot device；44, economizer；5, rubbish feeding device；51, apron conveyor；52, house refuse warehouse；6, refuse pyrolysis gasification furnace；
7, assisted combustion device；71, gas supply pipe；72, auxiliary combustion injector；8, Turbo-generator Set；9, flue gas purification system；
91, flue gas chilling extracting tower；92, bag filter；93, active carbon adding apparatus；94, chimney.
Specific embodiment
It is next combined with specific embodiments below that the present invention will be described in detail.
Referring to Fig. 1 to Fig. 5, a kind of small-scale municipal sludge and house refuse collaboration incineration treatment method include include municipal administration
Sludge incinerating system, house refuse coprocessing system, waste-heat recovery device and flue gas purification system 9；The municipal sludge is burnt
Burning system includes the sewage sludge feed device 1, sludge drying machine 2 and sludge incineration device 3 being sequentially connected in series；The domestic rubbish disposal
System includes the rubbish feeding device 5 and refuse pyrolysis gasification furnace 6 being serially connected, and house refuse is sent to house refuse by vehicle and stored up
Storehouse 52 stores, then is continuously introduced into refuse pyrolysis gasification furnace 6 via apron conveyor 51, and refuse pyrolysis gasification furnace 6 is gone out using lower part
The gas of gas formula structure, generation is discharged from refuse pyrolysis gasification furnace lower part, and the clinker of generation can be taken off comprehensively utilizing；The rubbish
The outlet side of pyrolysis gasification furnace 6 is connected to sludge incineration device 3, and the pyrolytic gasification gas of generation is introduced sludge incineration by blower
In device 3, and thermal energy is provided for sludge incineration by assisted combustion device 7；The waste-heat recovery device is waste heat boiler 4, remaining
Heat boiler 4 is connected to a Turbo-generator Set 8, and Turbo-generator Set 8 absorbs the steam that heat generates using waste heat boiler 4 and carries out
Power generation is supplemented for municipal sludge incineration system from electricity consumption；The level-one steam extraction of the Turbo-generator Set 8 is delivered to sludge drying machine 2
The middle drying and other treatment that sludge is used for as heat source, the foul smell that sludge is generated by the processing of sludge drying machine 2 are introduced dirty by blower
It is burned in mud incinerator 3；The flue gas generated after sludge incineration by flue gas purification system 9 handle it is up to standard after discharge.
Further, the sewage sludge feed device 1 includes wet mud storehouse 11 and sludge feeder 12, and wet mud is stored in wet
In sludge bin 11, Han Shui Shuai≤85% of wet mud after wet mud storehouse 11 is discharged by sludge discharging screw rod 13, then passes through sludge
Screw-rod delivery pump 14 is delivered to sludge feeder 12, and wet mud is continuously fed into sludge after being mixed in sludge feeder 12
Desiccation machine 2, it is 40 ~ 60% that sludge, which is dried to moisture content, in sludge drying machine 2, and the sludge after desiccation is through dewatered sludge conveyer 21
It send to sludge incineration device 3.
Further, the sludge incineration device 3 is the bubbling bed fluidized bed incinerator of vertical cylinder shape structure, including
Charging gear 31 and burning furnace body 32；The charging gear 31 passes through the side wall for burning furnace body 32 and is fixed on side wall, is fed
Device 31 includes distributing device 311 and setting gauge 312, and distributing device 311 is in T-shape structure, and transverse tube is arranged close to furnace body 32 is burned；
Two setting gauges 312 are symmetricly set on the transverse tube two ends of distributing device 311, and one end of setting gauge 312 is connected to distributing device 311, separately
One end is connected to furnace body 32 is burned, and sludge is sowed the furnace chamber inner combustion into burning furnace body 32 by the rotation of setting gauge 312, is done
Sludge after desiccation is transported in distributing device 311 by sludge conveyer 21, dewatered sludge through can two-way conveying distributing device 311 send
To symmetrically arranged setting gauge 312.
Further, structure is fixed on burning 32 inner sidewall of furnace body the assisted combustion device 7 in a ring, including combustion gas
Delivery pipe 71 and interval are fixed on gas supply pipe 71 and jet port is auxiliary in 32 burner hearth of furnace body towards burning after outer wall
Combustion-supporting burning injector 72, auxiliary combustion injector 72 is provided with 4, is respectively facing different directions；Quoted from refuse pyrolysis gasification furnace 6
Gasification gas sprayed via gas supply pipe 71 and four auxiliary combustion injectors 72 after enter the burner hearth of incinerator body 32 and formed
Annular flame layer.
Further, the lower furnace portion for burning furnace body 32 is provided with the fluidized bed bed of material 33；Pass through setting gauge after desiccation
312 are thrown into the dewatered sludges for burning furnace body 32 in dropping process first by annular flame layer, and pyrolytic gasification gas multifuel combustion, in height
Under the action of warm fire flame, the moisture in sludge is tentatively evaporated, and then, object drops down on the fluidized bed bed of material 33, in the fluidized bed bed of material
The destructive distillation, gasification and burning of further progress sludge on 33.
Further, the assisted combustion device 7 is located at 33 600 ~ 650mm of top of the fluidized bed bed of material；The setting gauge
312 are located at 7 500 ~ 550mm of top of assisted combustion device.
Further, the waste heat boiler 4 uses drawing out type waste-heat recovery device, and the steam parameter of waste heat boiler 4 is
1.6 ~ 2.0MPa, temperature are 320 ~ 350 DEG C, and the waste heat boiler 4 includes bracket group 41 and from top to bottom successively fixes respectively
High temperature superheater 42, low temperature superheater 43 and economizer 44 in bracket group 41；Enter the high-temperature flue gas in waste heat boiler 4
High temperature superheater 42 and low temperature superheater 43 are from top to bottom passed sequentially through, the water supply in waste heat boiler 4 passes sequentially through from the bottom to top
Low temperature superheater 43 and high temperature superheater 42 generate superheated steam after being exchanged heat with the high-temperature flue gas entered in waste heat boiler 4,
For economizer 44 for absorbing remaining high-temperature flue gas for circulating-heating water supply, the superheated steam of generation enters Turbo-generator Set 8；
The high temperature superheater 42, low temperature superheater 43 and economizer 44 are pullable structure, are slidably connected at bracket group respectively
In 41, it can be pulled out out of bracket group 41 and carry out disassembly cleaning.
Further, the flue gas purification system 9 includes the flue gas chilling extracting tower 91 and cloth bag being connected to waste heat boiler 4
Deduster 92 is provided with active carbon adding apparatus 93 on the pipeline that flue gas chilling extracting tower 91 is connected to bag filter 92, burns
The flue gas generated after burning by flue gas purification system 9 handle it is up to standard after by air-introduced machine enter chimney 94 discharge；The waste heat pot
Furnace 4, flue gas chilling extracting tower 91 and bag filter 92 capture the cured rear progress landfill disposal of the flying dust collected.
Workflow of the invention:
The wet mud of Han Shui Shuai≤85%, which is sent by conveyer or vehicle to wet mud storehouse 11, to be stored, and wet mud is discharged spiral shell by sludge
13 discharge wet mud storehouse 11 of rotation, then sludge feeder 12 is delivered to by sludge screw-rod delivery pump 14, sludge is in sludge feeder
Sludge drying machine 2 is continuously fed into after being mixed in 12, the heating of sludge drying machine 2 is using from Turbo-generator Set 8
Level-one steam extraction, in sludge drying machine 2 sludge be dried to moisture content be 40 ~ 60%, the sludge after desiccation is conveyed through dewatered sludge
Machine 21 is sent into the distributing device 311 of charging gear 31, sludge through can two-way conveying distributing device 311 dispensing to both ends setting gauge
312, sludge is thrown into burn in furnace body 32 using setting gauge 312 and is burnt；
House refuse is then delivered to house refuse warehouse 52 by vehicle, then is continuously introduced into house refuse heat via apron conveyor 51
Reaction in gasification furnace 6 is solved, the pyrolytic gasification gas of generation is sent through blower to burning in furnace body 32, passes through auxiliary combustion as auxiliary fuel
It burns device 7 and provides auxiliary thermal energy to furnace body is burned；Pyrolytic gasification gas passes through gas supply pipe 71 and four auxiliary combustion injectors
72 enter formation annular flame layer in burning furnace body 32, annular flame layer are first passed through into the sludge burned in furnace body 32, with life
Refuse pyrolysis gasification gas multifuel combustion living, under the action of thermal-flame, the moisture in sludge is evaporated, and subsequent sludge drops down onto fluidized bed
On the bed of material 33, further destructive distillation, gasification and burning on the fluidized bed bed of material 33；The high-temperature flue gas that sludge incineration generates enters waste heat
In boiler 4, waste heat boiler 4 absorbs flue gas heat and exchanges heat with water supply, generates superheated steam and is sent in Turbo-generator Set 8
It generates electricity, the level-one steam extraction of Turbo-generator Set 8 is directed to sludge drying machine 2, is used at the desiccation of wet mud as heat source
Reason；
Meanwhile the foul smell that sludge drying machine 2 generates is burned through blower introducing burning furnace body 32, after burning and heat recovery
Generation flue gas enter flue gas chilling extracting tower 91 and bag filter 92 jointly, and be added after active carbon adsorbed, by cigarette
Chimney 94 is discharged, landfill disposal after the flying dust that waste heat boiler 4 and flue gas purification system 9 are captured is cured.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of small-scale municipal sludge and house refuse cooperate with incineration treatment method, it is characterised in that: burnt including municipal sludge
Burning system, house refuse coprocessing system, waste-heat recovery device and flue gas purification system (9)；The municipal sludge burns
System includes the sewage sludge feed device (1), sludge drying machine (2) and sludge incineration device (3) being sequentially connected in series, sludge drying machine
(2) sludge in is delivered in sludge incineration device (3) by dewatered sludge conveyer (21)；The house refuse cooperates with processing system
System includes that the rubbish feeding device (5) being serially connected and refuse pyrolysis gasification furnace (6), house refuse are continuously introduced into refuse pyrolysis gas
Change furnace (6) to be reacted；The outlet side of the refuse pyrolysis gasification furnace (6) is connected to sludge incineration device (3), by the heat of generation
Solution gasification gas is introduced by blower for the assisted combustion device (7) to sludge incineration device (3) injection caburation gas；The waste heat
Recyclable device is waste heat boiler (4), and the steam generated after heating boiler feed water is passed through in a Turbo-generator Set (8), steamer hair
Motor group (8) absorbs the steam that heat generates using waste heat boiler (4) and generates electricity for municipal sludge incineration system and life rubbish
Rubbish processing system is supplemented from electricity consumption；The level-one steam extraction of the Turbo-generator Set (8) is delivered in sludge drying machine (2) as heat
Source is used for the drying and other treatment of sludge, and sludge introduces sludge incineration by blower by the foul smell that sludge drying machine (2) processing generates
Device is burned in (3)；The flue gas generated after sludge incineration discharges after flue gas purification system (9) processing is up to standard.
2. a kind of small-scale municipal sludge as described in claim 1 and house refuse cooperate with incineration treatment method, feature exists
In: the sewage sludge feed device (1) includes wet mud storehouse (11) and sludge feeder (12), and wet mud is stored in wet mud storehouse
(11), after by sludge discharging screw rod (13) discharge wet mud storehouse (11), then pass through sludge screw-rod delivery pump (14) and be delivered to dirt
Mud feeder (12), wet mud are continuously fed into sludge drying machine (2) after being mixed in sludge feeder (12).
3. a kind of small-scale municipal sludge as claimed in claim 2 and house refuse cooperate with incineration treatment method, feature exists
In: Han Shui Shuai≤85% of wet mud, it is 40 ~ 60% that sludge drying machine (2) interior sludge, which is dried to moisture content,.
4. a kind of small-scale municipal sludge as described in claim 1 and house refuse cooperate with incineration treatment method, feature exists
In: the sludge incineration device (3) is the bubbling bed fluidized bed incinerator of vertical cylinder shape structure, including charging gear (31)
With burning furnace body (32)；The charging gear (31) passes through the side wall for burning furnace body (32) and is fixed on side wall, charging gear
It (31) include distributing device (311) and setting gauge (312), distributing device (311) is in T-shape structure, and transverse tube is close to burning furnace body
(32) it is arranged；Two setting gauges (312) are symmetricly set on the transverse tube two ends of distributing device (311), one end of setting gauge (312) and cloth
Glassware (311) connection, the other end are connected to furnace body (32) are burned, are sowed sludge into burning by the rotation of setting gauge (312)
The furnace chamber inner combustion of furnace body (32).
5. a kind of small-scale municipal sludge as claimed in claim 4 and house refuse cooperate with incineration treatment method, feature exists
In: the assisted combustion device (7), structure is fixed on and burns on furnace body (32) outer wall in a ring, including gas supply pipe (71) and
Interval is fixed on gas supply pipe (71) and jet port direction after outer wall burns the auxiliary combustion in furnace body (32) burner hearth
Nozzle (72), quoted from refuse pyrolysis gasification furnace (6) gasification gas via auxiliary combustion nozzle (72) injection after freeze profile at
Annular flame layer.
6. a kind of small-scale municipal sludge as claimed in claim 5 and house refuse cooperate with incineration treatment method, feature exists
In: the lower furnace portion for burning furnace body (32) is provided with the fluidized bed bed of material (33), in the enterprising stepping of the fluidized bed bed of material (33)
Destructive distillation, gasification and the burning of row sludge.
7. a kind of small-scale municipal sludge as claimed in claim 6 and house refuse cooperate with incineration treatment method, feature exists
In: the assisted combustion device (7) is located above the fluidized bed bed of material (33) at 600 ~ 650mm；The setting gauge (312) is located at auxiliary
It helps above burner (7) at 500 ~ 550mm.
8. a kind of small-scale municipal sludge as described in claim 1 and house refuse cooperate with incineration treatment method, feature exists
In: the high temperature that the waste heat boiler (4) includes bracket group (41) and is from top to bottom successively separately fixed on bracket group (41)
Superheater (42), low temperature superheater (43) and economizer (44)；Enter high-temperature flue gas in waste heat boiler (4) from top to bottom according to
It is secondary by high temperature superheater (42) and low temperature superheater (43), the water supply in waste heat boiler (4) passes sequentially through low temperature from the bottom to top
Superheater (43) and high temperature superheater (42) generate overheat after being exchanged heat with the high-temperature flue gas entered in waste heat boiler (4) and steam
Vapour, for economizer (44) for absorbing remaining high-temperature flue gas for circulating-heating water supply, the superheated steam of generation enters turbine generator
Unit (8)；The high temperature superheater (42), low temperature superheater (43) and economizer (44) are pullable structure, are slided respectively
It is dynamic to be connected in bracket group (41).
9. a kind of small-scale municipal sludge as claimed in claim 7 and house refuse cooperate with incineration treatment method, feature exists
In: the steam parameter of the waste heat boiler (4) is 1.6 ~ 2.0MPa, and temperature is 320 ~ 350 DEG C.
10. a kind of small-scale municipal sludge as described in claim 1 and house refuse cooperate with incineration treatment method, feature exists
In: the flue gas purification system (9) includes the flue gas chilling extracting tower (91) and bag filter being connected to waste heat boiler (4)
(92), active carbon adding apparatus (93) are provided on the pipeline that flue gas chilling extracting tower (91) is connected to bag filter (92),
The flue gas generated after burning enters chimney (94) discharge by air-introduced machine after flue gas purification system processing is up to standard；The waste heat
Boiler (4), flue gas chilling extracting tower (91) and bag filter (92) capture the cured rear progress landfill disposal of the flying dust collected.
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| CN110734209A (en) * | 2019-10-22 | 2020-01-31 | 浙江环兴机械有限公司 | Operation method of industrial solid waste and sludge rotary kiln co-processing integrated device |
| CN110947735A (en) * | 2019-12-16 | 2020-04-03 | 广州市醇美环保科技有限公司 | Comprehensive treatment method and treatment system for treating wastes with wastes in household garbage and sludge |
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| CN112303630A (en) * | 2020-09-30 | 2021-02-02 | 汕尾市广物环保科技有限公司 | Biomass gasification and medical waste incineration co-production system and method |
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| CN113091065A (en) * | 2021-03-24 | 2021-07-09 | 北京大学 | Novel method and device for coupling utilization of sludge and municipal waste energy resources |
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Application publication date: 20190927 |