CN106938881A - A kind of processing system and method for carbonaceous solids discarded object - Google Patents
A kind of processing system and method for carbonaceous solids discarded object Download PDFInfo
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- CN106938881A CN106938881A CN201710132977.2A CN201710132977A CN106938881A CN 106938881 A CN106938881 A CN 106938881A CN 201710132977 A CN201710132977 A CN 201710132977A CN 106938881 A CN106938881 A CN 106938881A
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- sludge
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- waste heat
- pyrolysis
- incinerator
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- 238000012545 processing Methods 0.000 title claims abstract description 30
- 239000007787 solid Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title abstract description 11
- 239000010802 sludge Substances 0.000 claims abstract description 136
- 238000000197 pyrolysis Methods 0.000 claims abstract description 68
- 238000001035 drying Methods 0.000 claims abstract description 52
- 239000002918 waste heat Substances 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 26
- 239000000571 coke Substances 0.000 claims abstract description 18
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 239000000567 combustion gas Substances 0.000 claims abstract description 10
- 230000018044 dehydration Effects 0.000 claims abstract description 7
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000003546 flue gas Substances 0.000 claims description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 11
- 239000000779 smoke Substances 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 4
- 239000012265 solid product Substances 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 241000628997 Flos Species 0.000 claims description 2
- 239000000376 reactant Substances 0.000 claims description 2
- 239000003610 charcoal Substances 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 230000000153 supplemental effect Effects 0.000 claims 1
- 238000002309 gasification Methods 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 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 abstract description 3
- 239000012071 phase Substances 0.000 abstract description 3
- 239000010801 sewage sludge Substances 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000005979 thermal decomposition reaction Methods 0.000 abstract description 3
- 239000007790 solid phase Substances 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000002910 solid waste Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 239000010813 municipal solid waste Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000185 dioxinlike effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
-
- 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
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- 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
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
-
- 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
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2200/00—Pretreatment and supply of solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2201/00—Pretreatment of solid fuel
- F23K2201/20—Drying
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Treatment Of Sludge (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention provides a kind of processing system of carbonaceous solids discarded object, predrying unit is stored including sludge, sludge stores predrying unit connection drying sludge unit, drying sludge unit connects pyrolyzing sludge unit and combustion gas burning and waste heat recovery unit, the connection combustion gas burning of pyrolyzing sludge unit and waste heat recovery unit.The present invention uses self-heating type thermal decomposition gasification system, and gas phase and solid phase are separately handled, and by three step process sludge such as mechanical dehydration, drying and dehydrating and pyrolytic gasification, realize the innoxious of sludge, minimizing, recycling and stabilisation.Heat carries heat by sludge and realizes self-balancing in itself in system, when sewage sludge quality is poor, in the case that calorific value is relatively low, increases coke pyrolysis reactor to realize the heat balance of system.The system fully achieves the clean environment firendly processing of the carbonaceous solids discarded object such as sludge Wu dioxin emission and dust emission problem, and application prospect is very wide.
Description
Technical field
The present invention relates to the processing system and method for a kind of carbonaceous solids discarded object such as sludge, belong to solid waste processing
Technical field.
Background technology
In recent decades, the quickening with our national urbanization process and the high speed development of social economy, municipal drainage
The construction of infrastructure has been made significant headway, and municipal sewage networking rate is improved constantly.National urban wastewater treatment firm is produced
About 1,300,000 tons/year of dewatered sludge, and increased with every year about 10% speed., will if municipal sewage is all handled
Produce 8,400,000 tons/year of dewatered sludge amount.Due to containing substantial amounts of poisonous and harmful substances in Sewage Plant biological sludge, easily trigger two
Secondary pollution problem.Therefore, how by yield is huge, complicated component sludge passes through scientific disposal, stabilizing it, minimizing,
Innoxious, recycling, it has also become the problem that China or even whole world environment circle are paid close attention to jointly.China municipal sludge processing disposal by
Enough attention is not affected by long-term, treatment facility is built serious delayed.According to the investigation of Chinese environmental ERC, each
Plant in method of disposal, agricultural to account for 44.8%, land landfill accounts for 31%, and other disposal account for 10.5%, separately have about
13.7% municipal sludge has just been come back in nature without any processing.
At present, the processing mode of municipal sludge is mainly the conventional meanses such as landfill, row sea, burning.Landfill, because sludge is
A kind of complicated mixture, the inside contains many harmful substances, and after time length, the harmful substance in sludge can soak at leisure
Thoroughly among soil, so as to cause seriously to destroy to soil property.Row sea, can be to ocean if the improper direct row sea of Treatment of Sludge
The living resources such as fish cause serious pollution, destroy the ecological environment of ocean, making the resource of ocean cannot effectively utilize,
Even catastrophic consequence.Burn, due to containing a large amount of harmful substances in sludge, and burning is carried out under aerobic environment
Combustion reaction, while catalyst of the heavy metal contained in sludge but also as reaction, so inevitable in combustion process
Meeting produce substantial amounts of harmful substance, such as nitrogen oxides, sulfur dioxide and dioxin-like chemical, so as to be caused to ecological environment
Secondary pollution.
In summary, the process problem of the solid waste rubbish such as sludge has become increasingly serious and sent out as limitation city health
The key factor of exhibition, how sludge to be stabilized, minimizing, innoxious, recycling it is very urgent.The application will be carried
Go out the new technology system and its application method of a kind of solid waste garbage harmless recycling treatment such as sludge.
The content of the invention
The technical problem to be solved in the present invention is:Make full use of the calorific value of solid waste rubbish in itself to carry out self to decompose, not
Produce secondary pollution, calorific value itself is not high be not enough to be formed energy circulation balance when, using additional minimum energy, thrown minimum
On the premise of money and operating cost, energy supplement is carried out in most environmentally friendly mode, complete solid waste rubbish clean environment firendly conversion or
Utilize, be fully solved the generation of the secondary pollutions such as heavy metal, bioxin.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of processing system of carbonaceous solids discarded object
System, it is characterised in that:Predrying unit is stored including sludge, sludge stores predrying unit connection drying sludge unit, sludge
Drying unit connects pyrolyzing sludge unit and combustion gas burning and waste heat recovery unit, the connection combustion gas of pyrolyzing sludge unit burn with it is remaining
Heat recovery units.
Preferably, the sludge, which stores predrying unit, includes warehouse of sludge, and warehouse of sludge connects sludge by bucket elevator
Tank, sludge tank connection emchanically centrifugal separation dewaterer;The outfall of emchanically centrifugal separation dewaterer and warehouse of sludge it is clear
Clear liquid drainage is connected with sewage pump.
Preferably, the drying sludge unit includes drying drum, and the hot water and steam outlet of waste heat boiler connects drying drum,
The sludge stores the sludge outlet connection drying drum of predrying unit, the recirculation water steam outlet connection waste heat of drying drum
Boiler.
Preferably, the combustion gas burning includes incinerator, the drying gas floss hole of the drying drum with waste heat recovery unit
Incinerator is connected, the low-temperature flue gas outlet connection air preheater high temperature side entrance of the waste heat boiler, air preheater is low
Warm side entrance is air intake, air preheater low temperature side outlet connection incinerator.
Preferably, the pyrolyzing sludge unit includes pyrolysis reactor, the sludge outlet connection pyrolysis of the drying drum
The reactant entrance of reactor, the flue gas discharge opening point two-way of the incinerator, connects the thermal source inlet of pyrolysis reactor all the way,
The thermal source outlet flue gas of another road and pyrolysis reactor sends into the waste heat boiler by removing waste heat boiler pipeline together;Pyrolysis is anti-
The thermal source outlet of device is answered to connect the waste heat boiler;The pyrolysis gaseous state product outlet connection cyclone separator of pyrolysis reactor,
The gas discharge outlet of cyclone separator connects the incinerator;The pyrolysis solid product outlet connecting secondary of pyrolysis reactor is returned
Receive processing equipment.
Preferably, also including when system capacity can not realize self-balancing, the energy for providing energy as auxiliary thermal source is auxiliary
Help unit.
It is highly preferred that the energy auxiliary unit include coke pyrolysis reactor, coke pyrolysis reactor connection described in go
Exhaust-heat boiler flue gas pipeline;The coke pyrolysis gas outlet of coke pyrolysis reactor connects the incinerator.
Present invention also offers a kind of processing method of carbonaceous solids discarded object, it is characterised in that:Using above-mentioned carbon containing
The processing system of solid waste, step is:
Step 1:Sludge in warehouse of sludge is promoted in sludge tank by bucket elevator, the sludge feeding machinery in sludge tank
Centrifugal dewatering machine is dehydrated, and water content in sludge is down to less than 60% from 80%~90%;
Step 2:Sludge feeding drying drum after dehydration is dried, and the moisture in sludge is reduced to less than 25%;
Step 3:Dried sludge feeding pyrolysis reactor carries out most of organic matter in pyrolytic reaction, removing sludge and waved
Hair point;The residue of pyrolytic reaction generation goes secondary utilization by water Quench;
Step 4:Feeding incinerator is burned after the pyrolysis gas ash disposal of pyrolytic reaction generation, is burned the heat smoke produced and is gone pyrolysis
Reactor is as indirect type heat exchange thermal source, and the partial fume removes waste heat boiler after pyrolysis reactor outflow, for producing hot water
Steam;
Step 5:Drying drum uses the hot water and steam to carry out indirect type drying to sludge for thermal source, and what drying drum came out returns
Flowing water steam sends into waste heat boiler;The flue gas that waste heat boiler is produced delivers to air preheater heating air, after air themperature lifting
Deliver to incinerator burning.
Preferably, the operation temperature of the drying drum is 140~160 DEG C;
The pyrolysis reactor operation temperature is 550~650 DEG C;
The operation temperature of the incinerator is 900~1100 DEG C;
The incinerator burns the heat smoke produced and goes pyrolysis reactor to be exchanged heat thermal source as indirect type, the partial fume from
The temperature of pyrolysis reactor outflow is 650~750 DEG C;
The pressure of the hot water and steam of the waste heat boiler is that 0.5~0.8MPa, temperature are 150~200 DEG C;
What the waste heat boiler was produced delivers to the flue-gas temperature of air preheater for 350~450 DEG C;
The hot air temperature for delivering to incinerator of the air preheater outlet is more than 300 DEG C.
Preferably, when sludge calorific value as little as system can not produce the pyrolysis gas of enough calorific values by pyrolyzing sludge, burn
Stove combustion product gases temperature and flow, which do not reach, to be dried and the required total amount of heat of pyrolysis, is now started energy auxiliary unit and is provided auxiliary heat
Amount.
The present invention uses self-heating type thermal decomposition gasification system, and gas phase and solid phase are separately handled, and pass through mechanical dehydration, drying and dehydrating
With three step process sludge such as pyrolytic gasification, the innoxious of sludge, minimizing, recycling and stabilisation are realized.It is hot in system
Amount carries heat by sludge and realizes self-balancing in itself, and when sewage sludge quality is poor, in the case that calorific value is relatively low, increase coke pyrolysis is anti-
Device is answered to realize the heat balance of system.The system fully achieves sludge etc. and contained Wu dioxin emission and dust emission problem
The clean environment firendly processing of carbon solid waste, application prospect is very wide.
Stable and reliable operation of the present invention, it is easy to maximization amplification, environmental protection and energy saving, compared with prior art, with following beneficial
Effect:
(1) present invention uses self-heated pyrolysis reaction principle, realizes Treatment of Sludge gas, solid separation, sludge residue all with
Low slag form discharge, with a certain amount of carbon residue, can be utilized as the raw material secondary recovery of activated carbon;
(2) present invention uses pyrolysis gas independent burning system, and gas phase is fully converted to CO by high temperature incineration process2And H2O,
A small amount of sulfide is completely converted into SOx, and no bioxin is produced, and produced heat smoke is for warm needed for internal anhydro drying and pyrolysis
Amount, system capacity realizes self-balancing, and capacity usage ratio is higher;
(3) pyrolysis reaction temperature of the present invention is carried out below 650 DEG C, during completely avoid the generation and analysis of bioxin
Go out, realize sewage sludge harmlessness cleaning treatment.
Brief description of the drawings
The processing system schematic diagram for the carbonaceous solids discarded object that Fig. 1 provides for the present embodiment;
Description of reference numerals:
1- sludge streams;2- warehouse of sludge;3- bucket elevators;4- sludge tanks;5- emchanically centrifugal separation dewaterers;6- sewage;
7- clarified solutions;8- drying drums;9- air preheaters;10- air;11- waste heat boilers;12- discharges flue gas;13- hot-airs;14-
Low-temperature flue gas;15- backflow water vapours;16- dries discharge gas;17- hot water and steams;18- incinerator burners;19- removes waste heat boiler
Flue gas pipeline;Pyrolysis gas after 20- ash disposal;21- incinerators;22- pyrolysis reactors;23- removes pyrolysis smoke;24- collects sewage stream;
25- is pyrolyzed solid product;26- is pyrolyzed gaseous products;27- cyclone separators;28- removes coke reactor flue gas;29- coke is pyrolyzed
Reactor;30- coke;31- coke pyrolysis gas;32- sewage pumps.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
The processing system schematic diagram for the carbonaceous solids discarded object that Fig. 1 provides for the present embodiment, described carbonaceous solids are discarded
The processing system of thing stores predrying unit, drying sludge unit, pyrolyzing sludge unit, combustion gas burning and waste heat recovery by sludge
Unit and energy auxiliary unit etc. are constituted.
Described sludge stores predrying unit and taken off including warehouse of sludge 2, bucket elevator 3, sludge tank 4, emchanically centrifugal separation
Water dispenser 5, warehouse of sludge 2 connects sludge tank 4, the connection emchanically centrifugal separation of sludge tank 4 dewaterer 5 by bucket elevator 3.Sludge stream
1 sludge entered in warehouse of sludge 2, warehouse of sludge 2 is promoted in sludge tank 4 by bucket elevator 3, and the sludge in sludge tank 4 enters
Enter emchanically centrifugal separation dewaterer 5, emchanically centrifugal separation dewaterer 5 make in sludge water content from 80%~90% be down to 60% with
Under, the sewage 6 removed will go after-treatment by sewage pump 32.Clarified solution 7 in warehouse of sludge 2 is also fed into sewage pump 32,
The discharge of sewage pump 32 collects sewage stream 24.
Described drying sludge unit includes drying drum 8, the feeding drying drum 8 of hot water and steam 17 of waste heat boiler 11.Machinery
Dehydration is dried in sludge feeding drying drum 8 after centrifugal dewatering machine 5 is dehydrated, 150 DEG C or so of the operation in drying drum
Dried under temperature conditionss, drying drum 8 uses hot water and steam 17 to carry out indirect type drying to sludge for thermal source, makes the moisture in sludge
Less than 25% is reduced to by 60%.The feeding waste heat boiler 11 of backflow water vapour 15 that drying drum 8 comes out.
Described combustion gas burning includes incinerator 21, the row of drying that the drying process of drying drum 8 is produced with waste heat recovery unit
Deflation 16 all send incinerator 21 to carry out burning disposal.The feeding air preheater 9 of low-temperature flue gas 14 that waste heat boiler 11 is discharged, with
The air 10 of air inlet preheater 9 exchanges heat, and air 10 forms hot-air 13 after exchanging heat and sends into burning by incinerator burner 18
Stove 21, low-temperature flue gas 14 forms discharge flue gas 12 and discharged after exchanging heat.
Described pyrolyzing sludge unit includes pyrolysis reactor 22, the dried sludge of drying drum 8 feeding pyrolysis reactor
22, high temperature pyrolysis processing is carried out to sludge by pyrolysis reactor 22;The pyrolysis smoke 23 that goes that incinerator 21 is produced sends into heat
Reactor 22 is solved, pyrolysis reactor 22 goes pyrolysis smoke 23 as heat carrier, sludge is entered using what the burning of incinerator 21 was produced
The revolution pyrolysis of row indirect type.Pyrolysis gaseous products 26 send cyclone separator 27, are pyrolyzed after the ash disposal after the separation of cyclone separator 27
Gas 20 send incinerator 21 to burn;Incinerator 21 is burned in the high-temperature flue gas that pyrolysis gas 20 after ash disposal produces 1000 DEG C, high-temperature flue gas
Partial heat (going pyrolysis smoke 23 to carry in Fig. 1) (is gone remaining as the heat of pyrolysis reactor 22, remainder heat in Fig. 1
Heat boiler flue gas pipeline 19 is carried) hot water and steam 17 for producing high temperature is reclaimed by waste heat boiler 11, hot water and steam 17 is as dry
The thermal source of dry drum 8.Being pyrolyzed solid product 25 can secondary recovery processing utilization by water Quench.
Described energy auxiliary unit is mainly used in the system heating preheating of start-up, and relatively low in sludge calorific value
In the case of, system capacity provides up energy self-balancing when can not realize self-balancing as auxiliary thermal source.It is anti-using coke pyrolysis
Device 29 is answered, to go the heat smoke (removing coke reactor flue gas 28 in Fig. 1) that exhaust-heat boiler flue gas pipeline 19 is attracted to be participated in for thermal source
The pyrolytic gasification reaction of coke 30, in 800 DEG C of -900 DEG C of generation pyrolytic reactions, makes combustible component CO, CH in flue gas4、H2Improve
More than 50%;The coke pyrolysis gas 31 of generation send incinerator 21 to burn.
By taking the self-heating type thermal decomposition gasification process system for handling 200 tons of sludge quantity (wet basis) in a set of day as an example.Sludge is conventional
Municipal sludge.The design parameter of pyrolytic reaction device is as follows:
Feed sludge is aqueous:85%;
Sludge is aqueous after mechanical dehydration:60%;
Sludge is aqueous after drying:25%;
Air preheater outlet air temperature:305℃;
Operating pressure:Normal pressure;
Operation temperature:150 DEG C of drying drum, is pyrolyzed 620 DEG C of drum;
Sludge dry base heat value:20000kJ/kg;
Contain about 65% organic matter and 35% inorganic matter in sludge;
Waste heat boiler produces water vapour 0.69MPa, 170 DEG C of temperature;
980 DEG C of flue-gas temperature after burning.
After processing
Carbon containing low slag calorific value:9000kJ/kg, sells for activated carbon raw material;
320 DEG C of smog discharge temperature;
Low solid impurity particle:2-5mm, loose structure.
System capacity realizes self-balancing, without starting coke pyrolysis reactor.
It can be drawn from data above, the present invention is ensured using the gasification design of self-heating pyrolyzing sludge in sludge calorific value
Under the premise of can realize and complete clean conversion processing using dirty heat itself, without external heat source, while only sludge institute in itself
The discharge of moisture content, no dust emission, total system realizes gas, solid separate type processing, and the secondary dirt such as bioxin and dust is not produced
Dye.Compared to conventional sludge fluidized combustion processing mode, saving energy consumption more than 10%, dioxin emission value is reduced to 5%, dust
Discharge is reduced to 10%.
In summary, the present invention has obvious technological innovation advantage, it is adaptable to focusing on for municipal sludge, real
Existing recycling, innoxious, stabilisation and minimizing, substitute the technologies such as original Sludge landfill, burning and compost.
Claims (10)
1. a kind of processing system of carbonaceous solids discarded object, it is characterised in that:Predrying unit, sludge storage are stored including sludge
Predrying unit connects drying sludge unit, drying sludge unit connection pyrolyzing sludge unit and combustion gas burning and waste heat recovery list
Member, the connection combustion gas burning of pyrolyzing sludge unit and waste heat recovery unit.
2. a kind of processing system of carbonaceous solids discarded object as claimed in claim 1, it is characterised in that:The sludge storage is pre-
Drying unit includes warehouse of sludge (2), and warehouse of sludge (2) connects sludge tank (4), sludge tank (4) connection machine by bucket elevator (3)
Tool centrifugal dewatering machine (5);The outfall of emchanically centrifugal separation dewaterer (5) and the clarified solution row of warehouse of sludge (2)
Outlet is connected with sewage pump (32).
3. a kind of processing system of carbonaceous solids discarded object as claimed in claim 1, it is characterised in that:The drying sludge list
Member includes drying drum (8), and the hot water and steam outlet connection drying drum (8) of waste heat boiler (11), the sludge storage is predrying
The sludge outlet connection drying drum (8) of unit, the recirculation water steam outlet connection waste heat boiler (11) of drying drum (8).
4. a kind of processing system of carbonaceous solids discarded object as claimed in claim 3, it is characterised in that:The combustion gas burn with
Waste heat recovery unit includes incinerator (21), the drying gas floss hole connection incinerator (21) of the drying drum (8), the waste heat
Low-temperature flue gas outlet connection air preheater (9) high temperature side entrance of boiler (11), air preheater (9) low temperature side entrance is
Air intake, air preheater (9) low temperature side outlet connection incinerator (21).
5. a kind of processing system of carbonaceous solids discarded object as claimed in claim 4, it is characterised in that:The pyrolyzing sludge list
Member includes pyrolysis reactor (22), and the sludge outlet of the drying drum (8) connects the reactant entrance of pyrolysis reactor (22),
The flue gas discharge opening of the incinerator (21) point two-way, connects the thermal source inlet of pyrolysis reactor (22), another road and heat all the way
The thermal source outlet flue gas of solution reactor (22) sends into the waste heat boiler (11) by removing waste heat boiler pipeline (19) together;Pyrolysis
The thermal source outlet of reactor (22) connects the waste heat boiler (11);The pyrolysis gaseous state product outlet of pyrolysis reactor (22) connects
Cyclone separator (27) is connect, the gas discharge outlet of cyclone separator (27) connects the incinerator (21);Pyrolysis reactor (22)
Pyrolysis solid product outlet connecting secondary recycling equipment.
6. a kind of processing system of carbonaceous solids discarded object as claimed in claim 5, it is characterised in that:Also include working as system energy
When amount can not realize self-balancing, the energy auxiliary unit of energy is provided as auxiliary thermal source.
7. a kind of processing system of carbonaceous solids discarded object as claimed in claim 6, it is characterised in that:The energy auxiliary is single
Member include coke pyrolysis reactor (29), coke pyrolysis reactor (29) connection described in remove exhaust-heat boiler flue gas pipeline (19);It is burnt
The coke pyrolysis gas outlet of charcoal pyrolysis reactor (29) connects the incinerator (21).
8. a kind of processing method of carbonaceous solids discarded object, it is characterised in that:Using as described in any one of claim 5~7
The processing system of carbonaceous solids discarded object, step is:
Step 1:The inner sludge of warehouse of sludge (2) is promoted in sludge tank (4) by bucket elevator (3), the sludge in sludge tank (4)
Emchanically centrifugal separation dewaterer (5) dehydration is sent into, water content in sludge is down to less than 60% from 80%~90%;
Step 2:Sludge feeding drying drum (8) after dehydration is dried, and the moisture in sludge is reduced to less than 25%;
Step 3:Dried sludge feeding pyrolysis reactor (22) carries out most of organic matter in pyrolytic reaction, removing sludge and waved
Hair point;The residue of pyrolytic reaction generation goes secondary utilization by water Quench;
Step 4:Feeding incinerator (21) is burned after the pyrolysis gas ash disposal of pyrolytic reaction generation, is burned the heat smoke produced and is gone pyrolysis
Reactor (22) removes waste heat boiler (11) as indirect type heat exchange thermal source, the partial fume after pyrolysis reactor (22) outflow,
For producing hot water and steam (17);
Step 5:Drying drum (8) uses the hot water and steam (17) to carry out indirect type drying to sludge for thermal source, and drying drum (8) goes out
The backflow water vapour feeding waste heat boiler (11) come;It is empty that the flue gas that waste heat boiler (11) is produced delivers to air preheater (9) heating
Gas, delivers to incinerator (21) burning after air themperature lifting.
9. a kind of processing method of carbonaceous solids discarded object as claimed in claim 8, it is characterised in that:
The operation temperature of the drying drum (8) is 140~160 DEG C;
Pyrolysis reactor (22) operation temperature is 550~650 DEG C;
The operation temperature of the incinerator (21) is 900~1100 DEG C;
The incinerator (21) burns the heat smoke produced and removes pyrolysis reactor (22) as indirect type heat exchange thermal source, the part cigarette
The temperature that gas flows out from pyrolysis reactor (22) is 650~750 DEG C;
The pressure of the hot water and steam (17) of the waste heat boiler (11) is that 0.5~0.8MPa, temperature are 150~200 DEG C;
What the waste heat boiler (11) produced delivers to the flue-gas temperature of air preheater (9) for 350~450 DEG C;
The hot air temperature for delivering to incinerator (21) of air preheater (9) outlet is more than 300 DEG C.
10. a kind of processing method of carbonaceous solids discarded object as claimed in claim 8, it is characterised in that:When sludge calorific value is low
When the pyrolysis gas of enough calorific values can not be produced by pyrolyzing sludge to system, incinerator combustion product gases temperature and flow do not reach dry
Total amount of heat needed for dry and pyrolysis, now starts energy auxiliary unit and provides supplemental heat.
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005319373A (en) * | 2004-05-07 | 2005-11-17 | Tokyo Electric Power Co Inc:The | Method and apparatus for converting sludge into fuel |
JP2008248161A (en) * | 2007-03-30 | 2008-10-16 | Toshiba Corp | Thermal decomposition process and thermal decomposition system |
JP2009091496A (en) * | 2007-10-10 | 2009-04-30 | Toshiba Corp | Apparatus for converting sludge into fuel |
CN102537973A (en) * | 2012-01-16 | 2012-07-04 | 中昌环保集团有限公司 | Novel process for pyrolysis of solid wastes |
CN202558749U (en) * | 2012-05-07 | 2012-11-28 | 浙江利保环境工程有限公司 | Improved device for sludge pyrolysis treatment |
KR101534197B1 (en) * | 2014-10-24 | 2015-07-06 | 주식회사 알엠 | System for recycling sludge using waste resources and recovered heat of waste gas |
CN105636914A (en) * | 2013-10-03 | 2016-06-01 | 艾尼股份公司 | Waste sludge incinerator using pyrolysis and gasification, and relative process |
-
2017
- 2017-03-07 CN CN201710132977.2A patent/CN106938881A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005319373A (en) * | 2004-05-07 | 2005-11-17 | Tokyo Electric Power Co Inc:The | Method and apparatus for converting sludge into fuel |
JP2008248161A (en) * | 2007-03-30 | 2008-10-16 | Toshiba Corp | Thermal decomposition process and thermal decomposition system |
JP2009091496A (en) * | 2007-10-10 | 2009-04-30 | Toshiba Corp | Apparatus for converting sludge into fuel |
CN102537973A (en) * | 2012-01-16 | 2012-07-04 | 中昌环保集团有限公司 | Novel process for pyrolysis of solid wastes |
CN202558749U (en) * | 2012-05-07 | 2012-11-28 | 浙江利保环境工程有限公司 | Improved device for sludge pyrolysis treatment |
CN105636914A (en) * | 2013-10-03 | 2016-06-01 | 艾尼股份公司 | Waste sludge incinerator using pyrolysis and gasification, and relative process |
KR101534197B1 (en) * | 2014-10-24 | 2015-07-06 | 주식회사 알엠 | System for recycling sludge using waste resources and recovered heat of waste gas |
Non-Patent Citations (3)
Title |
---|
李永恒主编: "《造气技术问答》", 31 December 1993, 化工部上海化工研究所及化工部化肥工业科技情报中心站出版 * |
王罗春等: "污泥干化与焚烧技术", 冶金工业出版社 * |
陈碧美主编: "《污水处理系统运行与管理》", 31 July 2015, 厦门大学出版社 * |
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CN109945210B (en) * | 2019-02-01 | 2024-04-05 | 九洲环境科技(天津)有限公司 | Sludge phase separation heat treatment equipment and method with heat energy recycling function |
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