CN109595562A - The direct burning processing system of sludge tunnel type and its method - Google Patents
The direct burning processing system of sludge tunnel type and its method Download PDFInfo
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- CN109595562A CN109595562A CN201811549601.2A CN201811549601A CN109595562A CN 109595562 A CN109595562 A CN 109595562A CN 201811549601 A CN201811549601 A CN 201811549601A CN 109595562 A CN109595562 A CN 109595562A
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- 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
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Water Supply & Treatment (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of direct burning processing system of sludge tunnel type and its methods, the burning processing system includes enclosed tunnel formula incinerator, the enclosed tunnel formula incinerator is equipped with the dry section of connection, drying zone and incineration area, gas flow cut off device is directly provided in dry section and drying zone, it further include the combustion air inlet for being located at enclosed tunnel formula and burning furnace head, it is located at the exhanst gas outlet of drying zone end, it is located at the feeding seal fire door and discharging sealing fire door at enclosed tunnel formula incinerator both ends, it is located at the dry air import of dry section front end, it is located at the drying offgas outlet of enclosed tunnel formula incinerator tail portion.Three drying, dehydration, burning technical process are integrated into an integrated continuous processing i.e. enclosed tunnel formula incinerator and are completed by the present invention；The thermal energy of generation is burned simultaneously, is used for drying process, is realized the power self-support balance that Treatment of Sludge is burned and dried, has been saved the energy to the maximum extent, reduced costs.
Description
Technical field
The invention belongs to field of solid waste treating technology, are related to a kind of sludge incineration processing method, in particular to dirty
The direct burning processing system of mud tunnel type and its method.
Background technique
Sludge refers to the industry containing large amount of organic or sanitary sewage, produces after sewage treatment plant carries out sewage treatment processing
Raw mud, mud obtain product after mechanical dehydration and are known as sludge.After sludge without appropriately handling disposition enters environment, directly
It connects and brings secondary pollution to water body and atmosphere, serious threat is constituted to the activity of ecological environment and the mankind.Sludge bring
Main Environmental Problems are as follows:
(1) moisture percentage in sewage sludge is high, and stacking area is big, pressing waste landfill yard storage capacity；
(2) sludge is particularly suitable for bacteria breed, and place is spread unchecked in the growth of sludge stockyard often all kinds of harmful bacterias；
(3) sludge easily dissipates foul smell and peculiar smell, causes serious atmosphere pollution.
Sludge is mainly made of microorganism, hardly degraded organic substance and other metals and nonmetalloid.In dry dirt
Volatile matter accounts for about 50%-70% in mud, and ash content accounts for about 30%-50% or so, and wherein C content is about 20-30%, and H content is about
3%-5%, O content are about 20%-25%, and N content is about 3%-5%, and S content is about 1%-2%.
It is most thorough sludge specialized process method with the sludge disposal technology for burning as core.It can make in sludge
Organic matter is all carbonized and burns, burns pathogen to death while burning, can be to the dirt containing heavy metal or chemical pollutant
Mud realizes complete deactivation processing, can reduce pollution to greatest extent, and the burning ash or clinker that generate after burning can be used as
Improve soil, production building materials etc..
The substances such as organic matter have certain calorific value in sludge, since sludge contained humidity is higher, have many sludge itself hot
Value is not enough to evaporate sludge itself contained humidity.Even if itself calorific value of some sludge can evaporate sludge itself contained humidity, but
It is the condition that sludge incineration requirement is not achieved without the sludge of drying process.
The technical method of the processing of sludge incineration at present is usually that external source is relied on first to carry out dewatered drying to sludge, is reached
Condition required by sludge incineration, is then burned again.If burning the heat of generation under normal circumstances without in flue gas
Drying demand is not able to satisfy if steam gasification recovery of latent heat, it usually needs supplement thermal energy, and also generally drying exists with burning
Two systems are completed, and system investments are big, and process route is long.
Summary of the invention
In view of the deficienciess of the prior art, the present invention provides a kind of direct burning processing system of sludge tunnel type and its side
Method, the technical problems to be solved by the present invention are: how by drying, dehydration, burn three technical process be integrated into an one
It is completed in the continuous processing of change, that is, enclosed tunnel formula incinerator；Dehydration is recycled simultaneously, burns the thermal energy generated, especially water vapour
The latent heat of vaporization, be used for drying process.The power self-support balance that Treatment of Sludge is burned and dried is realized, to the maximum extent
The energy has been saved, has been reduced costs.In addition, reducing equipment investment, process flow is shortened, improves treatment effeciency.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that:
On the one hand, the present invention provides a kind of direct burning processing system of sludge tunnel type, including
Enclosed tunnel formula incinerator, the enclosed tunnel formula incinerator are equipped with dry section, drying zone and the incineration area of connection,
Gas flow cut off device is equipped between dry section and drying zone；
It further include being located at that enclosed tunnel formula burns the combustion air inlet of furnace head, the flue gas for being located at drying zone end goes out
Mouth, the feeding seal fire door for being located at enclosed tunnel formula incinerator both ends and discharging sealing fire door, the drying for being located at dry section front end
Air intlet, the drying offgas outlet for being located at enclosed tunnel formula incinerator tail portion.
It further include the waste heat boiler for utilizing production steam, the gas for heating air-vapour heat exchanger, for sludge realization work
The material loading trolley of skill process, the igniter that fuel is supplemented for activation system.
The waste heat boiler top is equipped with the air-introduced machine for extracting flue tail gas；The bottom of waste heat boiler is equipped with cold for outlet
The slush pump of condensate.
The gas-vapour heat exchanger is connected with the air blower for being sent into surrounding air.
Preferably, the gas gathering mask for preventing dry tail gas diverging is equipped at the feeding seal fire door.
On the other hand, the present invention provides a kind of sludge incineration based on the direct burning processing system of sludge tunnel type above-mentioned
Processing method includes the following steps:
Step a, sludge compression moulding is placed on material loading trolley；
Step b, three drying, dehydration, burning technical process are integrated into an integrated enclosed tunnel formula incinerator
Interior completion: material enters from enclosed tunnel formula incinerator dry section, and continues through drying zone, incineration area, is successively dried
Technique, dewatering process and burning process, removing surface adsorption water remove internal clearance water and combine water, waving in the sludge that burns
Lime-ash after burning is finally sent out enclosed tunnel formula incinerator by hair point.
Further, in step b, combustion air is contacted with the sludge for reaching burning condition occurs combustion reaction, after burning
The high-temperature flue gas of generation is flowed to drying zone, is heated sludge and is dehydrated to sludge；Pass through the high temperature after incineration area, drying zone
Flue gas draws incinerator system by exhanst gas outlet, by waste heat boiler it is gentle-vapour heat exchanger sufficiently recycles high-temperature flue gas thermal energy,
Hot dry air is obtained, hot dry air passes through dry air import again and sends incinerator system back to, does into dry section to sludge
It is dry；After drying, the decline of hot dry air temperature, and deodorizing tower is drained by dry offgas outlet, it is discharged after deodorizing tower processing.
Preferably, recycle high-temperature flue gas thermal energy method be: exhanst gas outlet discharge high-temperature flue gas and waste heat boiler into
After the primary heat exchange of row, flue-gas temperature carries out secondary heat exchange at 180 DEG C or more, subsequently into gas-vapour heat exchanger and surrounding air, changes
Exhaust gas temperature control is at 60 DEG C hereinafter, producing hot dry air simultaneously after heat；Hot dry air a part be sent into dry section to sludge into
Row drying, another part are sent into incineration area as combustion air.
Preferably, before sludge enters enclosed tunnel formula incinerator, first carry out leak detection: starting air-introduced machine closes
Combustion air inlet, dry air import, dry offgas outlet are closed, checks enclosed tunnel formula incinerator, waste heat boiler, gas-vapour
The air-tightness of heat exchanger closes air-introduced machine；Combustion air inlet, exhanst gas outlet are closed, dry air import, dry tail gas are opened
Outlet starts air blower, checks enclosed tunnel formula incinerator, waste heat boiler, gas-vapour heat exchanger air-tightness, closes air blower.
Further, step b specific method is: opening feeding seal fire door, step-by-step movement material-pulling device is first sent into a load
There is the material loading trolley of combustion-supporting fuel, be then fed into fully loaded material loading trolley to tunnel oven and completely set, close feeding seal fire door, closes
Combustion air inlet, dry air import, dry offgas outlet are closed, air-introduced machine is started, opens combustion air inlet, igniter is logical
Enter natural gas and light, thermal current enters in enclosed tunnel formula incinerator from combustion air inlet；First under thermal current effect
The material loading trolley for being loaded with combustibles burns, and after the sludge is stable burning on material loading trolley, the point for closing igniter is burnt
Mouth；Water evaporation after the sludge of subsequent material loading trolley is heated, the temperature of smoke outlet step up, and open drying zone wind circulation
The blower of system opens waste heat boiler, opens gas-vapour heat exchanger, opens dry air import, dry offgas outlet, starting drum
Blower opens the blower of incineration area air circulating system, opens the blower of dry section air circulating system；
After the sludge incineration on first trolley is complete, while feeding seal fire door and discharging sealing fire door, release first
Material loading trolley is sent into a new material loading trolley；It is burning gained on the bottom plate for the material loading trolley that the burning being pushed out finishes
Lime-ash, Ba Liao mechanism lime-ash is removed after unloaded material loading trolley return receive molding sludge, into next circulation.
Compared with prior art, the invention has the advantages that:
1. the present invention is by drying, dehydration, burning three technical process, to be integrated into an integrated continuous processing i.e. closed
It is completed in tunnel type incinerator.
2. the present invention is in sludge incineration treatment process, the thermal energy that recycling sludge incineration generates, the especially vapour of water vapour
Change latent heat, be used for drying process, realizes the power self-support balance that Treatment of Sludge is burned and dried, save to the maximum extent
The energy, reduces costs.
3. the vapor in the flue gas that sludge incineration generates reaches condensation temperature after the heat exchange with surrounding air, lead to
Crossing condensed water can be used for carrying out absorption dedusting to the dust in flue gas.
4. reducing equipment investment, process flow is shortened, improves treatment effeciency.
Detailed description of the invention
Fig. 1 is the direct burning processing system schematic diagram of sludge tunnel type of the invention.
In figure, 1- enclosed tunnel formula incinerator；2- exhanst gas outlet；3- combustion air inlet；4- feeding seal fire door；5- goes out
Material sealing fire door；6- dry air import；7- dries offgas outlet；8- incineration area air circulating system；9- drying zone wind cyclic system
System；10- dry section air circulating system；11- waste heat boiler；12- gas-vapour heat exchanger；13- air-introduced machine；14- slush pump；15- air blast
Machine；16- gas flow cut off device；17- material loading trolley；18- igniter；19- gas gathering mask；20- air preheater；21- step-by-step movement pushes away
Expect device.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further illustrated.
Mentality of designing of the invention be by drying sludge, dehydration, burn three technical process be integrated into one it is integrated
In continuous processing equipment, the present invention devises enclosed tunnel formula incinerator, and sludge compression moulding is placed on material loading trolley；It is close
The feeding furnace door and discharging door for closing tunnel type incinerator are opened, and a material loading trolley is sent into enclosed tunnel formula and burnt by moving system
The drying process area of furnace is burnt, while the material loading trolley after a burning is released from the burning process area of enclosed tunnel formula incinerator,
Complete a circulation.Meanwhile being designed by structure, the thermal energy of high-temperature flue gas is recycled and made full use of, the energy is saved.
The composition of the direct burning processing system of sludge tunnel type of the invention is introduced below with reference to Fig. 1.
Including enclosed tunnel formula incinerator 1, the enclosed tunnel formula incinerator 1 be equipped with connection dry section, drying zone and
Incineration area is equipped with gas flow cut off device 16 between dry section and drying zone.
It further include that the combustion air inlet 3 for being located at 1 head of enclosed tunnel formula incinerator, the flue gas for being located at drying zone end go out
Mouth 2, the feeding seal fire door 4 for being located at 1 both ends of enclosed tunnel formula incinerator and discharging sealing fire door 5 are located at dry section front end
Dry air import 6, the drying offgas outlet 7 for being located at 1 tail portion of enclosed tunnel formula incinerator.
It further include the incineration area air circulating system 8 for being located at the flue gas return incineration area of incineration area；It is located at the flue gas of drying zone
Return to the drying zone air circulating system 9 of drying zone；The flue gas for being located at dry section returns to the dry section air circulating system 10 of dry section.
Further include the condensing waste heat boiler 11 for utilizing production steam, the gas for heating air-vapour heat exchanger 12, be used for
Sludge realizes the material loading trolley 17 of technical process, for the igniter 18 of activation system supplement fuel.
Gas-vapour heat exchanger 12 is connected with the air blower 15 for being sent into surrounding air, and 11 top of waste heat boiler, which is equipped with, to be extracted
The air-introduced machine 13 of flue tail gas；The bottom of waste heat boiler 11 is equipped with the slush pump 14 for outlet condensed water, and exhanst gas outlet 2 is discharged
Flue gas and after waste heat boiler 11 once exchanged heat, carry out secondary heat exchange, exhaust gas temperature after heat exchange into gas-vapour heat exchanger 12
60 DEG C or less (guarantee that water vapour sufficiently condenses in flue gas) are normally controlled in, while producing hot-air.Flue gas cools down in heat exchange
A large amount of condensed waters can be generated in the process, can be used for carrying out the dust in flue gas absorption dedusting, the condensed water mud of generation
Pump 14 is sent to liquid waste processing pond, and tail gas is sent into tail gas recycle pond and is further processed.
In addition, dry tail gas diverging when material loading trolley 17 is pushed into from feeding seal fire door 4 in order to prevent, in feeding seal furnace
Gas gathering mask 19 is equipped at door 4.
Enclosed tunnel formula incinerator 1 according to the present invention belongs to non-standard equipment, needs according to treating capacity, sludge characteristics
It is designed production, the equal regular market purchase of material of production tunnel type incinerator obtains；Other set involved in the device of the invention
Standby equal regular market purchase obtains, and is conventional equipment, details are not described herein again for specific structure.
Below with reference to the direct burning processing system of sludge tunnel type above-mentioned, method for sludge treatment of the invention is made detailed
Illustrate, sludge incineration processing method of the invention includes the following steps:
One, sludge compression moulding.
Specifically, sludge is pressed into porous block, the porosity control of porous block via commercial concrete block machine
System is 15% to 25%；Porosity by sludge characteristics such as water content, caking property it is specific depending on.Porous block outer dimension and material containing
17 bottom plates of trolley, that is, there are modulo relationships for splicing plate.The sludge bulking of compression moulding is put on 17 bottom plate of material loading trolley.
Two, dry, dehydration, burning process processing.
Method And Principle is: three drying, dehydration, burning technical process are integrated into an integrated continuous processing equipment
Complete i.e. in enclosed tunnel formula incinerator 1: material enters from 1 dry section of enclosed tunnel formula incinerator, and continue through drying zone,
Technique, dewatering process and burning process, removing surface adsorption water, removing internal clearance water and knot is successively dried in incineration area
Volatile matter in Heshui, burning sludge, finally sends out enclosed tunnel formula incinerator 1 for the lime-ash after burning.
1, igniter 18 is set at combustion air inlet 3, and igniter 18 can also add fuel combustion supporting, combustion-supporting for opening
It is dynamic to increase system total amount of heat, add the preferred natural gas of fuel.Combustion air and natural gas by combustion air inlet 3 into
Enter in enclosed tunnel formula incinerator 1, it is anti-that combustion air contacts generation burning with the high temperature sludge that drying, dehydration reach burning condition
It answers, while sludge burns under incineration area hot conditions, a large amount of volatile matter volatilizations become combustible fumes in sludge, wave to strengthen
The full combustion of hair property combustible fumes can be arranged the incineration area air circulating system 8 that flue gas returns to incineration area in incineration area, carry out two
Secondary burning.The high-temperature flue gas generated after burning is flowed to drying zone, is heated sludge and is dehydrated to sludge, removes the knot of sludge
Heshui, Interstitial Water.Gas flow cut off device 16 is set between dry section and drying zone, passes through the high temperature after incineration area, drying zone
Flue gas by exhanst gas outlet 2 draw incinerator system, by waste heat boiler 11 it is gentle-vapour heat exchanger 12 sufficiently recycling high-temperature flue gas
The latent heat of vaporization preheated air of a large amount of water vapours, obtains hot dry air in thermal energy especially flue gas.Hot dry air passes through drying again
Air intlet 6 sends incinerator system back to, and sludge is dried into dry section, i.e., dry dirty using sludge itself recycling thermal energy
Mud, if sludge calorific value is sufficiently high can also first to produce a part of steam before smoke pre-heating air.
2, sludge enters dry section from the feeding seal fire door 4 of enclosed tunnel formula incinerator 1, is removed using dry heat the air
The free moisture for being easier the Sludge Surface absorption of removing adsorbs water.Sludge is used in dry section removing sludge absorption water
300 DEG C of hot dry airs below.Hot dry air is by surrounding air by being warming up to 300 DEG C hereinafter, heat transfer process with flue gas heat exchange
See below introduction.Hot dry air does not generate the substances such as dioxin in drying process, while dry section sludge humidity is big, does not generate powder
Dirt, after dry section, the decline of hot dry air temperature can pass through dry 7 row of offgas outlet with direct emission, if there is stink
To deodorizing tower, discharged after deodorizing tower processing.
To enhance drying sludge effect, if the dry section air circulating system 10 that dry gas returns can be arranged in dry section, with
The wind speed for increasing dry gas improves drying efficiency.
Wherein, the heat transfer process of surrounding air and high-temperature flue gas is that the method for recycling high-temperature flue gas thermal energy is: exhanst gas outlet 2
After the high-temperature flue gas and waste heat boiler 11 of discharge are once exchanged heat, flue-gas temperature is changed at 180 DEG C or more subsequently into gas-vapour
Hot device 12 carries out secondary heat exchange with surrounding air, and exhaust gas temperature control is in flue gas condensing temperature hereinafter, general 60 DEG C -80 after heat exchange
DEG C, or it is lower, the vapor in flue gas condenses in heat transfer process, a large amount of condensations generated while recycling a large amount of condensation heats
Water plays the role of the dust in flue gas to adsorb dedusting.Hot dry air is produced while heat exchange, hot dry air a part is sent
Enter dry section sludge is dried, another part is sent into incineration area as combustion air.It can also be in high-temperature flue gas outlet/heat
Dry air inlet is arranged air preheater 20 and meets process requirements to adjust flue-gas temperature.
3, sludge is after dry section removes surface adsorption water directly across the gas flow cut off device 16 of dry section and drying zone
Into drying zone.Sludge internal clearance water, the knot of high-temperature flue gas from incineration area more difficult removing in drying zone removing sludge
Heshui.Incinerator system is drawn by the exhanst gas outlet 2 of drying zone end by the high-temperature flue gas after incineration area, drying zone, it is complete
It is recycled at one.
Material loading trolley 17 after the burning of release, strips the clinker burnt on material loading trolley 17, returns to sludge compacting in time
Molding work area is re-fed into enclosed tunnel formula incinerator 1 after receiving molding sludge.
It is general to open the feeding seal fire door 4 of dry section and the discharging Sealing furnace of incineration area simultaneously when system operates normally
Door 5 burns the material loading trolley quilt finished at incineration area one while dry section is pushed into a fully loaded trolley using pusher
It releases.
The operating procedure that this patent is implemented is illustrated below with reference to Fig. 1:
Firstly, first carrying out leak detection before sludge enters enclosed tunnel formula incinerator 1: starting air-introduced machine 13 is closed
Combustion air inlet 3, dry air import 6, dry offgas outlet 7, check enclosed tunnel formula incinerator 1, waste heat boiler 11,
Gas-vapour heat exchanger 12 air-tightness closes air-introduced machine；Combustion air inlet 3, exhanst gas outlet 2 are closed, dry air import is opened
6, dry offgas outlet 7, starts air blower 15, checks enclosed tunnel formula incinerator 1, waste heat boiler 11, gas-vapour heat exchanger 12
Air-tightness closes air blower 15.
Then, feeding seal fire door 4 is opened, it is small that step-by-step movement material-pulling device 21 is first sent into the material containing for being loaded with combustion-supporting fuel
Vehicle 17 is then fed into fully loaded material loading trolley 17 to tunnel oven and completely sets, close feeding seal fire door 4, close combustion air into
Mouth 3, dry air import 6, dry offgas outlet 7, start air-introduced machine 13, open combustion air inlet 3, igniter 18 is passed through day
Right gas is simultaneously lighted, and thermal current enters in enclosed tunnel formula incinerator 1 from combustion air inlet 3；First under thermal current effect
The material loading trolley 17 for being loaded with combustibles burns, and after the sludge is stable burning on material loading trolley 17, closes the point of igniter 18
Burn mouth；Water evaporation after the sludge of subsequent material loading trolley 17 is heated, the temperature at exhanst gas outlet 2 step up, and open dehydration
The blower of area's air circulating system 9 opens waste heat boiler 11, opens gas-vapour heat exchanger 12, opens dry air import 6, dry tail
Gas outlet 7, starts air blower 15, opens the blower of incineration area air circulating system 8, opens the wind of dry section air circulating system 10
Machine；
After the sludge incineration on first trolley is complete, while feeding seal fire door 4 and discharging sealing fire door 5, release the
One material loading trolley is sent into a new material loading trolley；It is burning institute on the bottom plate for the material loading trolley that the burning being pushed out finishes
The lime-ash obtained, the unloaded material loading trolley after Ba Liao mechanism removes lime-ash returns to reception molding sludge, into next circulation.
Its ingredient of lime-ash obtained after method processing sludge of the invention depends on the chemical component of composition sludge, mainly
Dust in air substance deposition converge, as calcium, silicon, magnesium, aluminium, iron oxide.Gas-to-gas heat exchanger generate sludge with
The dust that waste heat boiler is collected merges with lime-ash.
All burning is clean for the organisms such as organic matter, bacterium in sludge, and moisture all evaporates, and the water vapour evaporated is cold
The a large amount of outer condensed waters supplied of production, residual exhaust enter tail gas recycle pond and are further processed in solidifying formula waste heat boiler 11.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, within the essential scope of the present invention, the variations, modifications, additions or substitutions made all should belong to the present invention
Protection scope.
Claims (3)
1. the direct burning processing system of sludge tunnel type, which is characterized in that including
Enclosed tunnel formula incinerator, the enclosed tunnel formula incinerator is equipped with dry section, drying zone and the incineration area of connection, dry
Gas flow cut off device is equipped between area and drying zone；
It further include being located at enclosed tunnel formula to burn the combustion air inlet of furnace head, the exhanst gas outlet for being located at drying zone end, set
Enclosed tunnel formula incinerator both ends feeding seal fire door and discharging sealing fire door, be located at the dry air of dry section front end into
Mouth, the drying offgas outlet for being located at enclosed tunnel formula incinerator tail portion.
2. based on the sludge incineration processing method of the direct burning processing system of sludge tunnel type described in claim 1, feature
It is, includes the following steps:
Step a, sludge compression moulding is placed on material loading trolley；
Step b, three drying, dehydration, burning technical process are integrated into complete in an integrated enclosed tunnel formula incinerator
Enter at: material from enclosed tunnel formula incinerator dry section, and continue through drying zone, incineration area, be successively dried technique,
Dewatering process and burning process, removing surface adsorption water remove internal clearance water and combine water, the volatile matter in the sludge that burns,
The lime-ash after burning is finally sent out into enclosed tunnel formula incinerator.
3. sludge incineration processing method according to claim 2, which is characterized in that in step b, combustion air and reach combustion
Combustion reaction occurs for the sludge contact of burning condition, and the high-temperature flue gas generated after burning is flowed to drying zone, heats sludge and to dirt
Mud is dehydrated；Incinerator system is drawn by exhanst gas outlet by the high-temperature flue gas after incineration area, drying zone, is changed through gas-vapour
Hot device sufficiently recycles high-temperature flue gas thermal energy, obtains hot dry air, and hot dry air passes through dry air import again and sends burning furnace body back to
System, is dried sludge into dry section；After drying, the decline of hot dry air temperature, and drained into and removed by dry offgas outlet
Smelly tower discharges after deodorizing tower processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549601.2A CN109595562A (en) | 2018-12-18 | 2018-12-18 | The direct burning processing system of sludge tunnel type and its method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549601.2A CN109595562A (en) | 2018-12-18 | 2018-12-18 | The direct burning processing system of sludge tunnel type and its method |
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| CN109595562A true CN109595562A (en) | 2019-04-09 |
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| CN201811549601.2A Pending CN109595562A (en) | 2018-12-18 | 2018-12-18 | The direct burning processing system of sludge tunnel type and its method |
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| CN (1) | CN109595562A (en) |
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| CN113340100A (en) * | 2021-07-06 | 2021-09-03 | 曹国强 | System and method for cooperatively treating municipal sludge/oil sludge by using baked brick tunnel kiln |
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| JPH1078209A (en) * | 1996-09-03 | 1998-03-24 | Fudo Eng Kk | Incinerator for sewage dehydrated sludge |
| CN101265008A (en) * | 2008-04-22 | 2008-09-17 | 东南大学 | Sludge drying burning combination treatment method |
| CN202938307U (en) * | 2012-09-14 | 2013-05-15 | 张元木 | Tunnel type vaporizing combusting garbage incinerator |
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| CN113340100A (en) * | 2021-07-06 | 2021-09-03 | 曹国强 | System and method for cooperatively treating municipal sludge/oil sludge by using baked brick tunnel kiln |
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