CN108413411A - Domestic garbage burning electricity generation cooperates with sludge drying processing method and system - Google Patents
Domestic garbage burning electricity generation cooperates with sludge drying processing method and system Download PDFInfo
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- CN108413411A CN108413411A CN201810278293.8A CN201810278293A CN108413411A CN 108413411 A CN108413411 A CN 108413411A CN 201810278293 A CN201810278293 A CN 201810278293A CN 108413411 A CN108413411 A CN 108413411A
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- 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
-
- 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
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/008—Incineration of waste; Incinerator constructions; Details, accessories or control therefor adapted for burning two or more kinds, e.g. liquid and solid, of waste being fed through separate inlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
-
- 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
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/10—Drying by heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/70—Blending
- F23G2201/702—Blending with other waste
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/12—Sludge, slurries or mixtures of liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/50206—Pelletising waste before combustion
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of domestic garbage burning electricity generation collaboration sludge drying processing method and systems, and using the Turbo-generator Set low-pressure pumping steam steam of Msw Incineration Power-generating System as heat source, drying and other treatment is carried out to sludge；Sludge after drying and other treatment is burned with house refuse blending to generate electricity：The flue gas and lime-ash that foul smell, waste water and the sludge that mud drying process generates generate during the burning process are jointly processed by by the waste water,waste gas and industrial residue Pollution treatment installation of Msw Incineration Power-generating System.The present invention utilizes domestic garbage burning electricity generation cooperative disposal sludge, achieved the effect that be reduced in drying process, sterilized, sterilize, solve it is smelly, meet " innoxious " requirement of Treatment of Sludge, " minimizing " and " recycling " of sludge, with good economic efficiency, social benefit and environmental benefit are truly realized under the premise of herein.
Description
Technical field
The invention belongs to sludge disposal technology, be related to a kind of domestic garbage burning electricity generation collaboration sludge drying processing method and
System.
Background technology
With economic fast development, urban population is continuously increased and beautiful rural development, sludge yield
It sharply increases.Mud organic substance content is high, perishable, there is a strong stink, and containing parasitic ovum, pathogenic microorganism and
The poisonous and harmful substance difficult to degrade such as the heavy metals such as copper, zinc, chromium, mercury and salt, Polychlorinated biphenyls, dioxin, radionuclide,
It is arbitrary to discharge, it will to cause secondary pollution if do not dealt carefully with.Especially in sewage disposal process, 70%~90%
Heavy metal element is transferred to by adsorbing or precipitating in sludge, and heavy metals exceeding standard is the main problem for hindering agricultural sludge.
The processing disposal technology of sludge has compost, landfill, bio-digestion, burning etc., sludge composting product can be used at present
Afforestation, vegetable plot, farmland etc., but the heavy metal in sludge can be absorbed by plants, and influence ecodevelopment；Sludge landfill occupies
A large amount of land resource is not suitable for the place of shortage of land resource；Bio-digestion has particular requirement to the sludge content of organic matter, and
Technological process is long, investment is big, operating cost is high, and minimizing, resource utilization efficiency are low；Burning method be considered as Treatment of Sludge most
Effective most thorough method, can not only greatly reduce the volume of sludge, effectively kill the microorganisms such as pathogenic bacteria, while can also recycle
The calorific value of sludge incineration.
Existing sludge incineration method is included in after coal-burning power plant's sludge drying that enter stove in proportion mixed there are four types of applicable technology
It burns, cement kiln individually burns dewatered sludge collaboration incineration disposal, domestic garbage burning electricity generation cooperative disposal sludge, sludge incinerator
Burn disposition.Such as discloses a kind of house refuse application No. is 201611193258.3 Chinese patent document and cooperate with burning with sludge
Generate electricity waste gas purification minimum discharge system, and power generation by waste combustion is carried out together using house refuse and sludge, but due to sewage disposal
The moisture percentage in sewage sludge of factory out is high, calorific value is low, and most of moisture percentage in sewage sludge are up to 60% or more, Lower heat value less than 300kcal/
Kg, if directly can reduce incinerator ignition temperature with house refuse burning blended together, cause incinerator smoke bioxin
Discharge beyond standards.If to being burned after sludge drying, the efficiency of combustion of sludge can be improved, but needs to consume the energy simultaneously
Drying and other treatment is carried out to sludge.
Invention content
Present invention solves the technical problem that being：On existing for existing sludge cooperated with consumer waste incineration treatment technology
Problem is stated, a kind of domestic garbage burning electricity generation collaboration sludge drying processing method and system are provided, the extra of electricity generation system is utilized
Thermal energy carries out desiccation to sludge, while complete using the Pollution treatment installation and mud drying process of Msw Incineration Power-generating System
It is complete shared.
The present invention adopts the following technical scheme that realization：
Domestic garbage burning electricity generation cooperates with sludge drying processing method, with the Turbo-generator Set of Msw Incineration Power-generating System
Low-pressure pumping steam steam carries out drying and other treatment as heat source, to sludge；Sludge after drying and other treatment and house refuse blending burn into
Row power generation：The flue gas and lime-ash that foul smell, waste water and the sludge that mud drying process generates generate during the burning process pass through life
The waste water,waste gas and industrial residue Pollution treatment installation of waste incineration and generating electricity system living is jointly processed by.
Specifically, the sludge drying processing includes the following steps：
Step 1: wet mud receives and storage；
Step 2: wet mud is fed；
Step 3: mud granulizing and desiccation；
Step 4: dewatered sludge conveying and storage.
Further, the wet mud moisture content received in the step 1 is no more than 65%, after step 3 granulation and desiccation
Dewatered sludge moisture content be 40%-45%.
Further, in the step 3, using the Turbo-generator Set low-pressure pumping steam of Msw Incineration Power-generating System
Steam is as heat source.
Further, pass through after the condensate water collecting that the wet mud in the step 3 is granulated and desiccation steam heat-exchanging wash rice goes out
The boiler draining system reuse of Msw Incineration Power-generating System；
High humidity hot waste gas after desiccation condenses waste water by cooling collect, it is after cooling it is low containing wet waste gas circulation be sent into step 3 into
Row sludge drying is taken a breath, and takes the moist steam of wet sludge anhydration generation out of again.
Further, in the step 3 high humidity hot waste gas cooling medium by Msw Incineration Power-generating System cycle
Cooling water system provides.
Further, it is followed containing the drying more than needed generated in odor pollutant exhaust gas and step 3 in step 1 and step 2
It is combustion-supporting that ring exhaust gas is used as incinerator primary air to be sent into fire grate together.
The invention also discloses a kind of domestic garbage burning electricity generations to cooperate with sludge drying treatment system, using above-mentioned life rubbish
Rubbish power generation by waste combustion cooperate with sludge drying processing method, specifically include the wet mud storage unit 1 being sequentially connected in series, wet mud to
Material unit 2, mud granulizing unit 3, drying sludge unit 4 and dewatered sludge storage unit 5, wherein wet mud storage unit 1 is used for
The reception and storage of wet mud, wet mud feeder unit 2 are fed to mud granulizing unit 3 for wet mud and convey, mud granulizing
Unit 3 is used for the granulation of wet mud, and drying sludge unit 4 is used for the drying of wet mud, after dewatered sludge storage unit 5 is used for desiccation
Dewatered sludge storage；
The wet mud storage unit 1 connects mud granulizing unit 3, the drying sludge unit 4 by wet mud feeder unit 2
It with the 3 mating setting of mud granulizing unit, and is docked by conveying equipment with dewatered sludge storage unit 5, the dewatered sludge storage is single
Member 5 is connected to rubbish by vehicle transhipment and blends unit 12, and dewatered sludge is sent with house refuse after rubbish blending unit 12 mixes
Enter waste incinerator 10 to be burned；Wherein,
The vapour of the heating steam channel and Msw Incineration Power-generating System of the mud granulizing unit 3 and drying sludge unit 4
The condensation water channel of 11 low-pressure pumping steam vapor communication of turbine generator group, the mud granulizing unit 3 and drying sludge unit 4 with it is cold
Condensed water collection unit 6 connects, and the condensation water collection unit 6 is connected to boiler hydrophobic units 7；
The drying cycles wind outlet of the mud granulizing unit 3 is connected to drying cycles wind heat exchange unit 9, the drying cycles wind
The condensation waste water that heat exchange unit 9 generates is connected to by pipeline with percolate processing unit 8.
Further, the inside of the drying cycles wind heat exchange unit 9 and mud granulizing unit 3 and drying sludge unit 4
Material channel is connected by drying cycles air pipe line, will be after cooling low containing the utilization of wet waste gas circulation.
Further, the drying cycles air hose pass between the drying cycles wind heat exchange unit 9 and drying sludge unit 4
Go out air exhaust branch pipe all the way, converge with the foul smell negative-pressure ward pipeline inside wet mud storage unit 1, is connected to rubbish blending together
Inside unit 12, it is combustion-supporting to send exhaust gas more than needed and wet mud foul smell as incinerator primary air into fire grate.
Further, the drying cycles air hose pass between the drying cycles wind heat exchange unit 9 and drying sludge unit 4
Go out air exhaust branch pipe all the way, converge with the foul smell negative-pressure ward pipeline inside wet mud storage unit 1, is connected to rubbish blending together
Inside unit 12, it is combustion-supporting to send exhaust gas more than needed and wet mud foul smell as incinerator primary air into fire grate.
The beneficial effects of the invention are as follows：
One, sewage sludge harmlessness, minimizing, disposal of resources water can be improved in domestic garbage burning electricity generation cooperative disposal municipal sludge
Flat, investment is saved, environmental benefit, social benefit, remarkable in economical benefits.
Two, the foul smell, condensation waste water of drying process generation of the present invention can be obtained and effectively collect disposition, and energy consumption is relatively low.Municipal administration
The control of sludge drying material water ratio is 40% or so, and entering stove multifuel combustion influences refuse thermal value smaller, and multifuel combustion ratio may not necessarily be about
Beam.
Three, industrialization compost can be paid the utmost attention to when the content of beary metal in dewatered sludge is less than agricultural fertilizer standard, is burned
Stove recovery energy alternately approach.It is granulated 45 DEG C or so of dewatered sludge particle residual temperature, in addition biological heat energy, fertile heap cooling is slow
Slowly, be conducive to the quick flourish of flora；Non-dusting irregular particle is stacked, and self-assembling formation internal framework is formed by confession
The porosity height in oxygen channel, compost can contain enough oxygens, be the necessary requirement of aerobic flora breeding.
In conclusion sludge is cured to suitable moisture content by the present invention in advance, its low heat value is improved, while dry
Achieve the effect that decrement, disinfection, sterilizing, solution are smelly during changing, using the desiccation of consumer waste incineration cooperative disposal sludge, compares
Other existing incineration disposal technology high standards meet it is " innoxious " require, herein under the premise of truly realize sludge
" minimizing " and " recycling ", investment most save, with good economic efficiency, social benefit and environmental benefit.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Description of the drawings
Fig. 1 is the connection diagram of the domestic garbage burning electricity generation collaboration sludge drying treatment system in embodiment.
Figure label：1- wet mud storage units, 2- wet mud feeder units, 3- mud granulizing units, 4- drying sludges
Unit, 5- dewatered sludge storage units, 6- condensation water collection units, 7- boiler hydrophobic units, 8- condense wastewater collection unit, and 9- is dry
Dry circulated air heat exchange unit, 10- waste incinerators, 11- Turbo-generator Sets, 12- rubbish blend unit.
Specific implementation mode
Embodiment
In conjunction with referring to Fig. 1, it is illustrated that in domestic garbage burning electricity generation collaboration sludge drying treatment system be the present invention one
Kind preferred embodiment, specifically includes wet mud storage unit 1, wet mud feeder unit 2, mud granulizing unit 3, drying sludge unit
4, dewatered sludge storage unit 5, condensation water collection unit 6, boiler hydrophobic units 7, condensation wastewater collection unit 8, drying cycles wind
Heat exchange unit 9, waste incinerator 10, Turbo-generator Set 11, rubbish blend unit 12.Wherein, wet mud storage unit 1, wet
Sludge feeder unit 2, mud granulizing unit 3, drying sludge unit 4 and dewatered sludge storage unit 5 are sequentially connected in series to form dirt
The technique main body of mud desiccation, wet mud storage unit 1 be used for wet mud reception and storage, wet mud feeder unit 2 be used for
Mud granulizing unit 3 is fed, and mud granulizing unit 3 is used for the granulation of wet mud, and drying sludge unit 4 is for the dry of wet mud
Dry, dewatered sludge storage unit 5 is used for the dewatered sludge storage after desiccation.
Solid arrow in diagram is the connection line signal of the solid materials such as wet mud or dewatered sludge, and dotted line arrow is
The connection line signal of the liquid such as condensed water or condensation waste water, dotted line are that the connection line of the Gaseous materials such as steam or exhaust gas is shown
Meaning.
Wet mud storage unit 1 connects mud granulizing unit 3 by wet mud feeder unit 2, by wet mud to material list
Wet mud in wet mud storage unit 1 is transported in mud granulizing unit 3 by member 2, drying sludge unit 4 and mud granulizing list
First 3 mating settings, first form graininess by wet mud, to improve the heating surface area of wet mud, are then sent to mud granule
By heated drying in drying sludge unit 4, drying sludge unit 4 is docked with dewatered sludge storage unit 5 by conveying equipment, after desiccation
Mud granule be transferred in dewatered sludge storage unit, dewatered sludge storage unit 5 and rubbish blend unit 12 and are set by transhipment
Standby connection, dewatered sludge are sent into waste incinerator 10 after being blended with house refuse in rubbish blending unit 12 and are burned.
Specifically, wet mud storage unit 1 includes sludge storage pool, discharging gate.The wet mud of reception requires moisture content
No more than 65%, wet mud is discharged into sludge storage pool using closed self-unloading transport cart from discharging platform, and sludge storage pool is using close
It closes structure and is equipped with negative suction system, the suction exhaust gas of composition containing foul smelling merges with drying cycles wind exhaust gas more than needed is sent into rubbish
Incinerator carries out combustion-supporting.
Wet mud feeder unit 2 includes mainly grab bucket, sludge hopper and sludge batcher, grab bucket crawl sludge storage pool
In wet mud feed hopper, sludge hopper lower part docking setting spiral sludge batcher wet mud is uniformly sent into dirt
Mud pelletizing unit.
Sludge granulator and tray drier, sludge granulator is respectively adopted in mud granulizing unit 3 and drying sludge unit 4
It is arranged vertically with tray drier, for sludge granulator on top, tray drier is below, and wet mud is repeated in sludge granulator
It is granulated broken wall thermal evaporation, forms intermediate hollow out, irregular mud granule, the granule surface area is very big, bulk density
Very gently, gas permeability is very strong, and grain size is about 3~10mm and independent mutual adhesion, further increases the generating surface of mud granule
Product.It is dry step by step to fall under the raking of each layer rake teeth after granulation sludge enters tray drier, dry sludge terminal exit
Moisture content is no more than 40%.
Dewatered sludge storage unit 5 includes mainly closed scraper conveyor, bucket elevator, dewatered sludge storage tank, disc type
The outlet connection dewatered sludge of drying machine is delivered to dewatered sludge storage tank by closed scraper conveyor, bucket elevator and keeps in.Rubbish
Rubbish blending unit 12 is the garbage pool docked with waste incinerator, will be in dewatered sludge storage unit 5 by dump truck in factory
Dewatered sludge is transported to garbage pool and region is specified to be mixed into rubbish heap clinker, and the rubbish of dewatered sludge will have been blended by garbage pool charging gear
Directly feed waste incinerator 10.
The steam drive vapour that mud granulizing unit 3 and drying sludge unit 4 are generated using 10 UTILIZATION OF VESIDUAL HEAT IN of waste incinerator
Low-pressure pumping steam steam after turbine generator group 11 generates electricity is added as drying source, granulating and drying machine and tray drier using indirect
The heating steam channel of hot mode, mud granulizing unit 3 and drying sludge unit 4 is respectively granulating and drying machine and tray drier
Heating jacket, the low-pressure pumping steam from Turbo-generator Set by pipe valve adjusting control respectively enter mud granulizing dry
In the heating jacket of machine and tray drier, conduction heat is contacted with the sludge of whereabouts, makes the moisture evaporation inside wet mud.It steams
Vapour temperature in heat transfer process reduces, and condenses into water, and the condensed water receipts for importing condensation water collection unit 6 are controlled by automatic steam trap
In header, the condensed water of collection pressurizes through pump is sent into 7 reuse of boiler hydrophobic units of generating set.
High humidity hot waste gas after 4 internal heat of mud granulizing unit 3 and drying sludge unit is drained to drying cycles wind and changes
Hot cell 9 carries out cooling condensation removal to damp and hot water vapour, and drying cycles wind heat exchange unit 9 includes mainly plate heat exchanger, follows
Ring cooling water and its pipe-line system.About 100 DEG C of high humidity heatrejection being discharged from sludge granulator top, is enriched with corrosivity gas
Plate heat exchanger is arranged on the system pipeline before circulating fan in body and a large amount of water vapours, passes through indirect heat exchange mode and cycle
Cooling water generates heat exchange, and low after heat exchange is down to 40 DEG C~50 DEG C sections containing wet exhaust gas temperature, can be used as mud granulizing unit 3
With the drying cycles wind of drying sludge unit 4, a large amount of condensation wastewater collections that wash rice goes out are board-like to change to condensation wastewater collection unit 8
Hot device recirculated cooling water is by garbage power plant recirculating cooling water system unified supply.To extend plate heat exchanger service life, air
Side material uses anti-corrosive alloy material.
It includes condensation wastewater collection pond and its pipe-line system to condense wastewater collection unit 8 mainly, and condensation wastewater collection pond connects
It is connected to garbage power plant percolation liquid treating system.The condensation waste water gravity flow that plate heat exchanger cooling drying cycles wind wash rice goes out, which enters, collects
Pond is pumped to domestic landfill leachate treatment system and merges disposition.
Drying cycles wind heat exchange unit 9 is connected with mud granulizing unit 3 and drying sludge unit 4 by drying cycles air pipe line
It connects.Circulating fan is set on drying cycles air pipe line, and the drying cycles wind of cycle is sent into from tray drier lower part, is made from sludge
The export of grain machine top, the effect of circulating fan is to overcome pipe-line system resistance, ensures drying cycles wind with certain flow rate in system
Middle normal circulation flowing, pipe-line system whole process keep negative pressure state, prevent gas with foreign flavor from leaking.One is drawn in circulating fan outlet
Road air exhaust branch pipe and the negative-pressure ward pipeline of wet mud storage unit 1 converge, and a sucktion fan is set on convergence tube road, will
Foul smell is discharged into rubbish blending unit 12, and the effect of the air exhaust branch pipe is that system leaked-in air is discharged, and keeps system wind
Amount balance.Combustion-supporting as incinerator primary air feeding fire grate after odorous gas converges in garbage pool, odorous gas is at 850 DEG C or more
At a high temperature of thoroughly clear up.The sludge drying process system drying cycles elegance circulatory system, dewatered sludge foul smell pump drainage amount is only
4% or so of garbage power plant incinerator normal operation primary air flow is accounted for, garbage pool negative pressure will not be kept having an impact.
By taking domestic garbage burning electricity generation cooperative disposal municipal sludge as an example, the drying process system of municipal sludge is as life
Waste incineration power generation project subsystem synchronized construction is implemented, and workshop and general layout allomeric function coordinate layout.It is burnt with house refuse
The Turbo-generator Set low-pressure pumping steam steam of electricity generation system is burnt as heat source, and drying and other treatment is carried out to sludge；After drying and other treatment
Sludge is burned with house refuse blending and is generated electricity：Foul smell, waste water and the sludge that mud drying process generates are in burning process
The waste water,waste gas and industrial residue Pollution treatment installation common point that the flue gas and lime-ash of middle generation pass through Msw Incineration Power-generating System
Reason.
Specifically, municipal sludge comprises the following specific steps that in drying process：
Step 1: wet mud receives and storage, the wet mud moisture content of reception is no more than 65%；
Step 2: wet mud is fed；
Step 3: using Msw Incineration Power-generating System Turbo-generator Set low-pressure pumping steam steam as heat source to sludge into
Row is granulated and desiccation.Step 4: dewatered sludge conveying and storage.For dewatered sludge moisture content after desiccation between 40%-45%, municipal administration is dirty
For mud under this moisture content level, Lower heat value can be promoted to 850 kcal/kg or more, can both meet incinerator combustion stability and want
It asks, also meets aerobic compost optimum moisture condition section.Content of beary metal in dewatered sludge can when being less than agricultural fertilizer standard
Pay the utmost attention to industrialization compost, incinerator recovery energy alternately approach.
Embodiment of above is taken, is cooperated by domestic garbage burning electricity generation and municipal sludge drying, drying process
In achieved the effect that be reduced, sterilize, sterilize, solving smelly, dewatered sludge can be with effective energy, recycling.
The present invention is not limited to the above embodiment, and any equivalent concepts in the technical scope of present disclosure or is changed
Become, is classified as protection scope of the present invention.
Claims (10)
1. domestic garbage burning electricity generation cooperates with sludge drying processing method, it is characterised in that：
Using the Turbo-generator Set low-pressure pumping steam steam of Msw Incineration Power-generating System as heat source, sludge is carried out at desiccation
Reason；
Sludge after drying and other treatment is burned with house refuse blending to generate electricity：
The flue gas and lime-ash that foul smell, waste water and the sludge that mud drying process generates generate during the burning process pass through life rubbish
The waste water,waste gas and industrial residue Pollution treatment installation of rubbish power generation by waste combustion system is jointly processed by.
2. domestic garbage burning electricity generation according to claim 1 cooperates with sludge drying processing method, at the sludge drying
Reason includes the following steps：
Step 1: wet mud receives and storage；
Step 2: wet mud is fed；
Step 3: mud granulizing and desiccation；
Step 4: dewatered sludge conveying and storage.
3. domestic garbage burning electricity generation according to claim 2 cooperates with sludge drying processing method, connect in the step 1
The wet mud moisture content of receipts is no more than 65%, and it is 40%-45% that step 3, which is granulated with the dewatered sludge moisture content after desiccation,.
4. domestic garbage burning electricity generation according to claim 2 cooperates with sludge drying processing method, in the step 3, adopt
Use the Turbo-generator Set low-pressure pumping steam steam of Msw Incineration Power-generating System as heat source.
5. domestic garbage burning electricity generation according to claim 4 cooperates with sludge drying processing method, in the step 3
It is hydrophobic by the boiler of Msw Incineration Power-generating System after the condensate water collecting that wet mud is granulated and desiccation steam heat-exchanging wash rice goes out
System reuse；
High humidity hot waste gas after desiccation condenses waste water by cooling collect, it is after cooling it is low containing wet waste gas circulation be sent into step 3 into
Row sludge drying is taken a breath, and takes the moist steam of wet sludge anhydration generation out of again.
6. domestic garbage burning electricity generation according to claim 5 cooperates with sludge drying processing method, high in the step 3
The cooling medium of damp and hot exhaust gas is provided by the recirculating cooling water system of Msw Incineration Power-generating System.
7. domestic garbage burning electricity generation according to claim 1 cooperates with sludge drying processing method, step 1 and step 2
In containing the drying cycles exhaust gas more than needed generated in odor pollutant exhaust gas and step 3 together be used as incinerator primary air be sent into
Fire grate is combustion-supporting.
8. domestic garbage burning electricity generation cooperates with sludge drying treatment system, it is characterised in that using the life in claim 1-7
Waste incineration and generating electricity cooperates with sludge drying processing method, including：
Wet mud storage unit（1）, it is used for the reception and storage of wet mud；
Wet mud feeder unit（2）, for being fed to mud granulizing unit；
Mud granulizing unit（3）, it is used for the granulation of wet mud；
Drying sludge unit（4）, it is used for the drying of wet mud；
Dewatered sludge storage unit（5）, for the dewatered sludge storage after desiccation；
The wet mud storage unit（1）Pass through wet mud feeder unit（2）Connect mud granulizing unit（3）, the sludge is dry
Dry unit（4）With mud granulizing unit（3）Mating setting, and with dewatered sludge storage unit（5）It is docked by conveying equipment, it is described
Dewatered sludge storage unit（5）It is connected to rubbish by vehicle transhipment and blends unit（12）, dewatered sludge mixes with house refuse in rubbish
Mixed unit（12）Waste incinerator is sent into after mixing（10）It is burned；Wherein,
The mud granulizing unit（3）With drying sludge unit（4）Heating steam channel and Msw Incineration Power-generating System
Turbo-generator Set（11）Low-pressure pumping steam vapor communication, the mud granulizing unit（3）With drying sludge unit（4）Condensation
Aquaporin and condensation water collection unit（6）Connection, the condensation water collection unit（6）It is connected to boiler hydrophobic units（7）；
The mud granulizing unit（3）Drying cycles wind outlet be connected to drying cycles wind heat exchange unit（9）, the drying follows
Ring wind heat exchange unit（9）The condensation waste water of generation passes through pipeline and percolate processing unit（8）Connection.
9. domestic garbage burning electricity generation according to claim 8 cooperates with sludge drying treatment system, the drying cycles wind
Heat exchange unit（9）With mud granulizing unit（3）With drying sludge unit（4）Materials inside channel pass through drying cycles air pipe line
Connection, will be after cooling low containing the utilization of wet waste gas circulation.
10. domestic garbage burning electricity generation according to claim 9 cooperates with sludge drying treatment system, the drying cycles wind
Heat exchange unit（9）With drying sludge unit（4）Between drying cycles air pipe line draw air exhaust branch pipe all the way, stored with wet mud
Unit（1）Internal foul smell negative-pressure ward pipeline converges, and is connected to rubbish blending unit together（12）Inside, by exhaust gas more than needed and
Wet mud foul smell is combustion-supporting as incinerator primary air feeding fire grate.
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