CN205528592U - System for be used for medium temperature pyrolysis and carbonization of municipal sludge flue gas mummification - Google Patents
System for be used for medium temperature pyrolysis and carbonization of municipal sludge flue gas mummification Download PDFInfo
- Publication number
- CN205528592U CN205528592U CN201620173426.1U CN201620173426U CN205528592U CN 205528592 U CN205528592 U CN 205528592U CN 201620173426 U CN201620173426 U CN 201620173426U CN 205528592 U CN205528592 U CN 205528592U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- mummification
- gas
- temperature pyrolysis
- municipal sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- 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
Abstract
The utility model relates to a system for be used for medium temperature pyrolysis and carbonization of municipal sludge flue gas mummification, store up metering device, low temperature flue gas mummification device, sack cleaner, medium temperature pyrolysis and carbonization device, residual heat from flue gas device and tail -gas clean -up deodorizing device including devices for heating air with the feeding that connects gradually, devices for heating air provides hot -blast for low temperature flue gas mummification device and medium temperature pyrolysis and carbonization device. The utility model discloses a system optimization combination through the energy gradient utilization, had both reduced system energy consumption, the effectual thermal efficiency that has improved, medium temperature pyrolysis has avoided mud local overheat to produce coking and obstructed problem, has improved system reliability. The utility model discloses a low temperature flue gas mummification technique conduct anterior segment sludge drying core facility, the atomizing mummification is efficient, and the time is short, the mummification section combines to spout 2~4mm of ejection of compact particle diameter after bed and the mummification of fluidized bed principle ability effective control, has effectively improved to follow -up carbonization efficiency.
Description
Technical field
This utility model relates to chemical industry, ecological, environmental protective field, more particularly, it relates to a kind of dirty for city
The system of mud flue gas mummification middle temperature pyrolysis charring.
Background technology
By in by the end of June, 2015, whole nation the planned city, county (hereinafter referred to as cities and towns, without other organic town)
Adding up to build up sewage treatment plant 3802, sewage treatment capacity reaches 1.61 billion cubic meters/day.Calculate accordingly,
Sludge yield 9.66 ten thousand ton day (moisture content 80%), 35,260,000 tons/year.
Mud is the product after sewage disposal, be a kind of by organic relic, microbial cells, inorganic particle,
The extremely complex heterogeneous body of the composition such as colloid.Urban wastewater treatment firm mud not only water content is high, perishable
Rotten, there is strong odor, and dislike containing a large amount of pathogen, parasitic ovum and the heavy metal such as chromium, hydrargyrum and two
English etc. are difficult to poisonous and harmful and the carcinogen degraded.The unprocessed random stacking of mud, invading through rainwater
Erosion and seepage effect, easily cause secondary pollution to subsoil water, soil etc., and directly harm human body is healthy.
Properly, municipal sludge is disposed in process safe and environment-friendly, treatment in accordance with local conditions, is protection Urban Water Environment
It is badly in need of the vital task solved.At present, the process of specific resistance to filtration technique predominantly city's mud include landfill,
The approach such as Land_use change, anhydration and incineration and pyrolysis after aerobic compost or anaerobic digestion.But due to China's mud
The content of organic matter is low compared with the developed country such as American-European, and due to receiving portion industry in major part municipal sludge
Waste water causes Heavy Metals in Sludge to there is exceeding standard in various degree, it is contemplated that the enrichment of food chain, aerobic
After compost or anaerobic digestion, the final disposal problem of Land_use change cannot solve, and landfill is then filled out due to municipal refuse
The factor such as the storage capacity restriction in place and the uncontrollable of mud secondary pollution of burying has been limited by national industrial policies,
Anhydration and incineration is then limited to high energy consumption and high operating cost can only use in flourishing city.
Pyrolyzing sludge is to be heated when anaerobic or anoxia by mud, and thus generation heat effect causes
Chemolysis makes the chemolysis reaction of solid-state, gaseous state and liquid.Owing to pyrolysis is in anoxia
Under the conditions of carry out, its NOx、SOxDischarge with the pollutant such as heavy metal is well below the row in burning process
High-volume, can obtain carbide, tar and combustion gas from pyrolysis, they have higher calorific value and value.
The engineer applied of pyrolyzing sludge concentrates on high temperature pyrolysis carbonization, owing to energy consumption height causes operating cost at present
Gao Qi, it is impossible to large-scale promotion.And in middle temperature slow pyrolysis (400～600 DEG C), organic in mud
Matter complete decomposition, it is achieved that the organic matter in mud and the stabilization treatment of heavy metal.In employing, warm solves
Energy consumption and operating cost can be effectively reduced, the flue gas waste heat recovery produced is used for mud does in middle warm solution
Be delivered to pyrolysis charring in carbonizing apparatus after change, pyrolysis gas as supplementary fuel, carbide then can be as water at
Reason adsorbent realizes recycling, has application value.
The organic solid waste carbonization application such as current mud concentrate on high temperature carbonization, and its pre-treatment many employings swinging is dried
Dry machine, does not mates with the characteristic of dewatered sludge high viscosity, be limited in drying equipment stirring transport resistance big,
Mummification heat transfer efficiency is low, cause that whole system energy consumption is high, equipment failure rate high be unfavorable for extensive
The feature promoted.Therefore, how mud carbonization system is effectively improved the thermal efficiency, reduces operating cost and raising
The stability of device is the key of current research.
Summary of the invention
The technical problems to be solved in the utility model is, it is provided that a kind of for the municipal sludge middle temperature of flue gas mummification
The system of pyrolysis charring, COD and heavy metal ion can be had very by made carbide as adsorbent
High clearance, is a kind of excellent organic waste water treatment agent, can act also as auxiliary fuel.
This utility model solves its technical problem and be the technical scheme is that structure is a kind of for municipal sludge
The system of flue gas mummification middle temperature pyrolysis charring, stores up metering dress including hot air apparatus and the charging being sequentially connected with
Put, low-temperature flue gas desiccation apparatus, sack cleaner, middle warm solution carbonizing apparatus, flue gas waste heat recovery apparatus
With tail gas clean-up odor removal, described hot air apparatus is low-temperature flue gas desiccation apparatus and middle warm solution carbonizing apparatus
Hot blast is provided.
In such scheme, described low-temperature flue gas desiccation apparatus includes that drying, described drying bottom have air intake
Road, is provided with centrifugal spraying dish inside described drying, intake air way is positioned at the lower section of atomizing disk, centrifugal mist
Change dish is connected with driving motor, and described centrifugal spraying dish top is provided with sewage sludge feed pipe, sewage sludge feed pipe and
Screw feeder is connected, and the top of described drying is provided with flue dust outlet；
In such scheme, described middle warm solves carbonizing apparatus and includes pay-off, housing and hot blast distribution pipe,
Described pay-off is connected with the top of housing, and the top of described housing is provided with preheating and drying district, described preheating
Being provided with multiple distribution rake teeth being crisscross arranged up and down and cloth distribution plate in dry section, described cloth distribution plate is solid
Being scheduled on the inwall of housing, described distribution rake teeth is fixing, and described rotary shaft is connected with driving means on the rotary shaft,
Being provided with pyrolysis reaction region below described preheating and drying district, the lower section of described pyrolysis reaction region arranges carbide and separates
Plate, described hot blast distribution pipe heat air delivery in preheating and drying district and pyrolysis reaction region.
In such scheme, described charging is stored up metering device and is included that mud receives storehouse, some outlet valves and metering
Spiral, it is follow-up that municipal sludge uses sealed transport vehicle or sludge pump to be delivered to regulation equilibrium in mud reception storehouse
Device flow, receives metering screw bottom storehouse through mud and measures and be delivered to flue gas desiccation apparatus.
In such scheme, the combustion-supporting gas of hot air apparatus is sent in the preheating of described flue gas waste heat recovery apparatus.
In such scheme, described flue gas waste heat recovery apparatus uses fin strengthening cross-ventilation heat exchange structure.
In such scheme, the dewatered sludge in described sack cleaner is warmed in being sent into by pneumatic transport equipment
Solve carbonizing apparatus.
In such scheme, described tail gas clean-up odor removal is connected with adsorption tower and chimney.
In such scheme, described middle warm solves carbonizing apparatus and is connected with carbide packing device.
In such scheme, described middle warm solves carbonizing apparatus and also includes that gas-solid separator, described housing are provided with
Exhanst gas outlet, the entrance of described gas-solid separator is connected with described exhanst gas outlet, described gas-solid separator top
Being provided with separating flue outlet, bottom is provided with solid outlet, described solid outlet and the feed back being arranged on housing
Mouth connects.
In such scheme, the card of described centrifugal spraying dish is provided with the section of multiple metal foil, multiple described
Section is distributed ringwise.
In such scheme, the bottom of described housing is provided with carbide floss hole, below described carbide floss hole
Cooler is set.
Implement the system for municipal sludge flue gas mummification middle temperature pyrolysis charring of the present utility model, have following
Beneficial effect:
1, this utility model is combined by system optimization, is utilized by energy gradient, has both reduced system energy
Consumption, effectively raises the thermal efficiency；Middle warm solution avoids mud hot-spot and produces asking of coking and obstruction
Topic, improves system reliability.
2, this utility model uses low-temperature flue gas drying technique as leading portion sludge drying nucleus equipment, atomization
Mummification efficiency is high, and the time is short；Mummification section combines spouted bed and fluidized bed principle can effectively control discharging after mummification
Particle diameter 2～4mm, is effectively increased as follow-up carbonization efficiency.
3, after the mummification of this utility model flue gas, mud uses pneumatic conveying mode to send after sack cleaner separates
Enter follow-up carbonizing apparatus, compare traditional helical feed or belt conveying mode, make full use of this technique and do
The particle size features of mud after change, had both saved conveying energy consumption, and the air-tightness of whole system is good, operating environment without
Stink, flour dust overflow.
4, this utility model flue gas heat recovery system compares employing waste heat boiler form, in decreasing
Between the energy dissipation of link and equipment investment, in conjunction with flue gas drying equipment, system is simple and reliable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is that this utility model shows for the structure of the system of municipal sludge flue gas mummification middle temperature pyrolysis charring
It is intended to；
Fig. 2 is the structural representation of low-temperature flue gas desiccation apparatus；
Fig. 3 is the structural representation that middle warm solves carbonizing apparatus.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, existing comparison
Accompanying drawing describes detailed description of the invention of the present utility model in detail.
As shown in Figure 1-Figure 3, including hot air apparatus 10 and the charging that is sequentially connected with store up metering device 1,
Low-temperature flue gas desiccation apparatus 2, sack cleaner 3, middle warm solve carbonizing apparatus 5, flue gas waste heat recovery dress
Put 6 and tail gas clean-up odor removal 7.
Charging is stored up metering device 1 and is included that mud receives storehouse, some outlet valves and metering screw.Municipal sludge
Use sealed transport vehicle or sludge pump to be delivered to charging and store up regulation in mud reception storehouse in metering device 1
Equilibrium follow up device flow, receives metering screw bottom storehouse through mud and measures and be delivered to flue gas desiccation apparatus
2。
Charging is stored up metering device 1 conveying and is carried out dewatered sludge by centrifugal bottom dry low-temperature flue gas desiccation apparatus 2
Nebulizer high speed centrifugation effect is converted into small particle atomization state, mud and carbonizing apparatus 5 waste heat cigarette after atomization
The high-temperature flue gas contact that gas and hot air apparatus 10 produce, the caloic of the bigger serface passed through exchanges and logical
Cross high speed centrifugation breaking cellular wall effect, the moisture in mud is evaporated rapidly and takes out of.Low-temperature flue gas desiccation apparatus 2
Be specifically designed for dewatered sludge viscosity swinging high, traditional or indirect heat exchange type drying equipment easily stick wall,
The problems such as blocking, heat exchange efficiency is low and the device developed, improve mud with high by high speed centrifugation atomization
The contact gear ratio surface area of temperature flue gas, heat exchange is fully and the time only needs 6S, whole desiccation apparatus 2 floor space
Little, work efficiency is high.
After mummification, mud is delivered to be further dried in middle warm solves carbonizing apparatus 5 by Pneumatic conveyer 4,
Producing carbide and pyrolysis gas through middle temperature pyrolytic reaction, carbide is through carbonizing apparatus 5 bottom coohng unit
Enter following resource after being delivered to carbide packing device 11 packing after cooling and utilize link, can serve as
Fuel or water process adsorbent.Pyrolysis gas enters in flue gas waste heat recovery apparatus 6 and send after air heat-exchange
Enter in hot air apparatus 10.Reclaim heat generation high-temperature hot-air through high temperature thermal decomposition and can be used for low-temperature flue gas mummification
Device 2.Middle warm solves carbonizing apparatus 5 dry section and uses multi-stage oven form to be easy to control technological temperature, it is considered to
Mud preheating and dried particle diameter attribute, pyrolysis reactor uses fluidized-bed structure to increase mud and hot blast
Reaction contact surface, carbonization temperature and time scalable, reduce the technique controlling difficulty of sludge carbonization.
Middle warm solves tail gas entrance tail gas clean-up and the odor removal 7 that carbonizing apparatus 5 produces, through bag-type dust
Isolate flue gas and enter tail gas clean-up and odor removal 7, after washing and microbial degradation, enter activated carbon urge
Change adsorption tower 8 process further up to standard after discharge through chimney 9.
Flue gas waste heat recovery apparatus 6 uses fin to strengthen cross-ventilation heat exchange structure, and after preheating, air is sent into
The combustion-supporting pyrolysis gas of hot air apparatus 10 and auxiliary fuel, compare water cooling mode and achieve the gradient profit of energy
With.
As in figure 2 it is shown, low-temperature flue gas desiccation apparatus 2 includes drying 201, particle separator 202, cigarette
Dirt outlet 203, inspection manhole 204, low-temperature flue gas air inlet 205, ventilation terminal 206, driving motor
207, sludge storage bin 208, helical feed motor 209, screw feeder 210, V-baffle 211, from
Core type atomizing disk 212, scraper 213.
Wherein drying 201 drying is divided into upper and lower two parts, and bottom is provided with intake air way.Scattered in order to reduce
Heat loss, it is ensured that the mummification thermal efficiency, the barrel of drying 201 use insulation material, and lined ceramics or
Smooth anti-corrosion material, can effectively prevent the corrosion of equipment, improves service life of equipment.Intake air way is by doing
Dry cylinder lower side is tangentially connected with low-temperature flue gas air inlet 205.Centrifugal spraying dish 212 is at drying
201 upper part bottoms, are positioned at above intake air way.Air channel and ventilation terminal 6 are positioned at air inlet and centrifugal spraying
Between dish 212, it is ensured that uniform air intake, making gas-solid contact time long, heat transfer process is abundant.Flue dust exports
203, on drying 201 top, drying 201 arrange inspection manhole 204.
Sewage sludge feed pipe is arranged on centrifugal spraying dish 212 top, is connected with screw feeder 210.Spiral
Conveying motor 209 drives screw feeder 210 to rotate.The charging aperture of screw feeder 210 and sludge storage bin
It is connected bottom 208.Mud charge door lower end of duct arranges reverse V-shaped baffle plate 211, can prevent semi-oriented mud
Enter in centrifugal spraying dish 212 and mix with wet mud, make wet mud even into centrifugal spraying dish 212
In, reduce the wet mud entered with speed and directly fall into space, drying 201 two ends.
The particle separator 202 of adjustable position is set on drying 201 top, to the grain of mud after mummification
Footpath selects, it is ensured that flue gas takes the dewatered sludge of appropriate particle size out of drying 201, and particle diameter is bigger
Granule falls under gravity and continues to contact mummification with flue gas, it is ensured that mud is fully dried.
Centrifugal spraying dish 212 is connected with driving motor 207, drives motor 207 to drive it to rotate, this reality
The driving motor 207 executed in example is frequency conversion motor, and its rotating speed is adjustable.Centrifugal spraying dish 212 arranges multiple
The cultrate section of metal foil, is concentric circles with atomizing disk.Mud is by high speed rotating (atomization web
The linear velocity 90～160m/s of edge) centrifugal spraying dish 212, mud granule first be sliced segmentation chopping,
Then the aperture through atomizing disk periphery is thrown away by centrifugal force, at the multiple masterpiece being centrifuged, shear, collide
To throw away at circumferential edges at a high speed under with, form droplet, be fully contacted with low-temperature flue gas stream, due to granule
Atomizing effect is good, and mud is instantaneous dry by flue gas.
Further, in order to avoid mud viscous wall, extension of centrifugal spraying dish 212 in atomization process
Multiple scraper 213 is set.When atomizing disk works, the mud of viscous wall can be wiped off simultaneously.As excellent
Choosing, the dish body of centrifugal spraying dish 212 uses automatically cleaning high-abrasive material.
Low-temperature flue gas air inlet is connected with aerator, aerator the waste hot gas sent into is through air channel and cloth wind
Device 206 tangentially enters drying 201 from drying 201 lower end, rises in the shape of a spiral.Wet mud is through spiral
Feeder 210 is delivered in drying 201, falls into centrifugal spraying dish 212, part under gravity
Wet mud, drives motor 207 to drive and is chopped into little on the centrifugal spraying dish 212 of high-speed rotation
Grain, is thrown out of from plate edge under centrifugal action and is atomized, when centrifugal spraying dish 212 rotating speed simultaneously
Time higher with feed rate, wet mud feed liquid is atomized into droplet.So, two strands, left and right is entrainment of droplet
High speed waste hot gas clash in drying 201, partially dried mud is through the used heat band of gas upwards
Entering flue dust outlet 203 discharge to collect, the mud granule not fully being dried is low and heavy due to gas prompt drop in upper end
Fall, continues to contact with low-temperature flue gas to be dried.
As it is shown on figure 3, middle warm solves carbonizing apparatus 5 includes pay-off, housing 518, hot blast distribution pipe
512 and gas-solid separator 508.
Pay-off includes receiving hopper 501 and is arranged on the spiral distributor 502 of receiving hopper 501 lower end.Send
Material device is connected with the top of housing 518, and the top of housing 518 is provided with preheating and drying district 510, and middle part sets
There is pyrolysis reaction region 511.Multiple distribution rake teeth 504 being crisscross arranged up and down it is provided with in preheating and drying district 510
With cloth distribution plate 503, cloth distribution plate 503 is fixed on the inwall of housing 518.Distribution rake teeth 504 is solid
Being scheduled in rotary shaft 505, rotary shaft 505 is connected with driving means 516, and driving means 516 is motor,
Rotary shaft 505 is driven to rotate.
Being provided with pyrolysis reaction region 511 below preheating and drying district 510, the lower section of pyrolysis reaction region 511 arranges charcoal
Compound separating plate 513, hot blast distribution pipe 512 carries in preheating and drying district 510 and pyrolysis reaction region 511
Hot blast.Housing 518 is provided with exhanst gas outlet 506, the entrance of gas-solid separator 508 and exhanst gas outlet 506
Connect.Gas-solid separator 508 top is provided with separating flue outlet 507, and bottom is provided with solid outlet, solid
Outlet is connected with the feedback outlet 509 being arranged on housing 518.Separating flue outlet 507 separates with pyrolysis gas
Purifier connects, and the bottom of housing 518 is provided with carbide floss hole 514, carbide floss hole 514 times
Side arranges cooler.
This utility model is mainly used in through the direct mummification of high-temperature flue gas to moisture content less than 40% or warp
High mass dryness fraction is dehydrated to moisture content about 40% city organic solid waste.Pay-off conveying is come dewatered sludge and is fallen
Enter cloth distribution plate 503, through being installed in rotary shaft 505 rotation driving sub-material rake teeth 504, by material
It is evenly distributed on cloth distribution plate 503.Utilize hot blast and pyrolysis zone flue gas in hot blast distribution pipe 512
Effect realizes preheating and drying, and preheating and drying district 510 is made up of multiple chambers, by preheating and drying step by step,
Moisture percentage in sewage sludge is reduced to less than 10%, and mud granularity is entrance pyrolysis zone after micron order.The temperature of pyrolysis zone
Degree is 400～600 DEG C, and mud middle warm under the autocatalysis of the heavy metals such as hot blast effect and copper solves,
Form carbide and pyrolysis gas.Wherein to enter cyclonic separation through exhanst gas outlet 506 laggard for pyrolysis gas and flue gas
Entering pyrolysis gas isolation of purified unit to recycle as one of hot-air system auxiliary fuel, carbide is through bottom
Carbide separating plate 513 enters carbide cooler 515 after entering decanting zone, be delivered to follow-up after cooling
Carbide finished product workshop section.
Further, gas-solid separator 508 includes two stage cyclone room, for high-temperature flue gas pyrolysis produced
In dust separation out, isolated gas be delivered to a part be delivered to pyrolysis zone low-temperature zone use
In pyrolytic reaction, a part is delivered to flue gas heat recovery system.High-temperature flue gas enters fume afterheat
Recycling system is condensed to be isolated moisture and is delivered to preheating zone by after partial air preheating, and condensation is clean
After change, high-temperature flue gas is delivered to the direct anhydration system of flue gas as dry medium.
Further, it is provided with temperature probe in preheating and drying district 510 and pyrolysis reaction region 511, in order to reach
Control the purpose of detection pyrolysis temperature.The carbonization reaction time can be by the rotational speed regulation of rotary shaft 505.
Further, the bottom of housing 518 is provided with purging motor 517, is used for purging dust.
This utility model additionally provides following two specific embodiment:
Embodiment 1:
Certain Sewage Plant dewatered sludge (moisture content 80%) yield every day 20 tons, uses high solid content delivery pump defeated
Enter charging to store up and metering system 1, enter low-temperature flue gas anhydration system 2 and carry out mummification, moisture content is reduced to
30～40%, decrement is 5.71～6.67 tons.After mummification, mud sends into middle temperature pyrolytic carbon through pneumatic transport equipment 4
Change system 5, pyrolysis reaction temperature is 650～800 DEG C, produces 2.42 tons of carbides and pyrolysis through pyrolytic reaction
Gas, drop temperature is that the water cooled unit of carbide of 150～200 DEG C cools to less than the 30 DEG C follow-up moneys of rear feeding
Source utilizes link, and 600～750 DEG C of pyrolysis gas condense to 400 DEG C through flue gas waste heat recovery system rapid cooling
Hereinafter flue gas anhydration system is sent into afterwards by dewatered sludge mummification to moisture content 30～40%.
In this technique in flue gas anhydration system tail gas through alkali liquor spray-absorption, microbial degradation, activated carbon catalysis
By smoke stack emission after the tail gas clean-up machine deodoration system process such as absorption are up to standard.Pyrolysis gas is after rapid cooling condenses
Send in hot-air system and reclaim heat for flue gas anhydration system through 900～1100 DEG C of thorough burnings.
This technique uses waste heat preheating heat wind furnace combustion air, it is achieved that the gradient of energy utilizes, and compares employing
Waste heat boiler stream mode decreases the energy dissipation of intermediate link, and flue gas anhydration system uses high speed centrifugation
It is low that conventional helical alr mode operation troubles rate is compared in atomization, whole technique the power consumption 45～55Kw/ wet mud of ton
(moisture content 80%), gas consumption 50～60Nm3The wet mud of/ton or the coal consumption 40～50kg/ wet mud of ton.Phase
Ratio high temperature carbonization the power consumption 75～80Kw/ wet mud of ton, gas consumption 70～75Nm3The wet mud of/ton or coal consumption
57～the 62kg/ wet mud of ton, direct operating cost lowers 15～20%.Compare anhydration and incineration technique power consumption 90～
The wet mud of 120Kw/ ton, the coal consumption 70～80kg/ wet mud of ton, direct operating cost reduces by more than 30%.
This process system floor space 700m2, it is possible to use in Sewage Plant, idle land used is arranged, decreases biography
System mud centrally disposes the cost of transportation of mode, and in being both suitable for small-scale Sewage Plant factory, dispersion was disposed, and was also suitable for
Specific resistance to filtration unit is reduced in large-and-medium size cities Sewage Plant.Test data such as table 1, table 2 in the present embodiment
Shown in.
Table this process stream of .1. changes
Table this technique of .2. contrasts with similar process energy consumption level
Embodiment 2:
Certain Sewage Plant dewatered sludge (moisture content 80%) yield every day 20 tons, contains after high mass dryness fraction is dehydrated
Water rate is reduced to 40%, and decrement is 6.67 tons.The input charging of high solid content delivery pump is used to store up and count
Amount system 1, enters low-temperature flue gas anhydration system 2 and carries out mummification, moisture content is reduced to 20～30%,
Decrement is 5.0～5.71 tons.After mummification, mud warm in pneumatic transport equipment 4 is sent into solves carbonization system
5, pyrolysis reaction temperature is 650～800 DEG C, produces 2.42 tons of carbides and pyrolysis gas through pyrolytic reaction,
Drop temperature be send into after the water cooled unit of carbide of 150～200 DEG C cools to less than 30 DEG C follow-up
Recycling link, 600～750 DEG C of pyrolysis gas condense extremely through flue gas waste heat recovery system rapid cooling
Flue gas anhydration system is sent into by dewatered sludge mummification to moisture content 30～40% after less than 400 DEG C.
In this technique in flue gas anhydration system tail gas through alkali liquor spray-absorption, microbial degradation, activated carbon
By smoke stack emission after the tail gas clean-up machine deodoration system process such as catalytic adsorption are up to standard.Pyrolysis gas is through dropping rapidly
Send into after temperature condensation in hot-air system and reclaim heat for flue gas mummification through 900～1100 DEG C of thorough burnings
System.
This technique uses high mass dryness fraction dewatering type that moisture percentage in sewage sludge is first reduced to 40%, and follow-up flue gas is done
Changing required auxiliary fuel and reduce 80%, whole technique power consumption is that the 70～80Kw/ wet mud of ton are (aqueous
Rate 80%), gas consumption 10～12Nm3The wet mud of/ton or the coal consumption 8～10kg/ wet mud of ton.Compare
High temperature carbonization the power consumption 75～80Kw/ wet mud of ton, gas consumption 70～75Nm3The wet mud of/ton or coal
The consumption 57～62kg/ wet mud of ton, direct operating cost lowers 15～20%.Compare anhydration and incineration technique
The power consumption 90～120Kw/ wet mud of ton, the coal consumption 70～80kg/ wet mud of ton, direct operating cost reduces
More than 35%.
This technique floor space 800m2, it is possible to use in Sewage Plant, idle land used is arranged, decreases biography
System mud centrally disposes the cost of transportation of mode, and in being both suitable for small-scale Sewage Plant factory, dispersion was disposed, also
It is suitable for large-and-medium size cities Sewage Plant and reduces specific resistance to filtration unit.
Table this process stream of .3. changes
Table this technique of .4. contrasts with similar process energy consumption level
Above in conjunction with accompanying drawing, embodiment of the present utility model is described, but this utility model is not
Be confined to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention be only schematically rather than
Restrictive, those of ordinary skill in the art is under enlightenment of the present utility model, without departing from this practicality
In the case of novel objective and scope of the claimed protection, it may also be made that a lot of form, these belong to
Within protection of the present utility model.
Claims (10)
1. the system for municipal sludge flue gas mummification middle temperature pyrolysis charring, it is characterized in that, storing up metering device, low-temperature flue gas desiccation apparatus, sack cleaner, middle warm solution carbonizing apparatus, flue gas waste heat recovery apparatus and tail gas clean-up odor removal including hot air apparatus and the charging being sequentially connected with, described hot air apparatus provides hot blast for low-temperature flue gas desiccation apparatus and middle warm solution carbonizing apparatus.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 1, it is characterized in that, described low-temperature flue gas desiccation apparatus includes drying, intake air way is arranged at described drying bottom, is provided with centrifugal spraying dish inside described drying, and intake air way is positioned at the lower section of atomizing disk, centrifugal spraying dish is connected with driving motor, described centrifugal spraying dish top is provided with sewage sludge feed pipe, and sewage sludge feed pipe is connected with screw feeder, and the top of described drying is provided with flue dust outlet.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 1, it is characterized in that, described middle warm solves carbonizing apparatus and includes pay-off, housing and hot blast distribution pipe, described pay-off is connected with the top of housing, the top of described housing is provided with preheating and drying district, multiple distribution rake teeth being crisscross arranged up and down and cloth distribution plate it is provided with in described preheating and drying district, described cloth distribution plate is fixed on the inwall of housing, described distribution rake teeth is fixing on the rotary shaft, described rotary shaft is connected with driving means, it is provided with pyrolysis reaction region below described preheating and drying district, the lower section of described pyrolysis reaction region arranges carbide separating plate, described hot blast distribution pipe heat air delivery in preheating and drying district and pyrolysis reaction region.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 1, it is characterized in that, described charging is stored up metering device and is included that mud receives storehouse, some outlet valves and metering screw, municipal sludge uses sealed transport vehicle or sludge pump to be delivered to mud and receives regulation equilibrium follow up device flow in storehouse, receives metering screw bottom storehouse through mud and measures and be delivered to flue gas desiccation apparatus.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 1, it is characterised in that the combustion-supporting gas of hot air apparatus is sent in the preheating of described flue gas waste heat recovery apparatus.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 1, it is characterised in that described flue gas waste heat recovery apparatus uses fin strengthening cross-ventilation heat exchange structure.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 1, it is characterised in that during the dewatered sludge in described sack cleaner is sent into by pneumatic transport equipment, warm solves carbonizing apparatus.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 1, it is characterised in that described tail gas clean-up odor removal is connected with adsorption tower and chimney.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 1, it is characterised in that described middle warm solves carbonizing apparatus and is connected with carbide packing device.
System for municipal sludge flue gas mummification middle temperature pyrolysis charring the most according to claim 3, it is characterized in that, described middle warm solves carbonizing apparatus and also includes gas-solid separator, described housing is provided with exhanst gas outlet, the entrance of described gas-solid separator is connected with described exhanst gas outlet, described gas-solid separator top is provided with separating flue outlet, and bottom is provided with solid outlet, and described solid outlet is connected with the feedback outlet being arranged on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173426.1U CN205528592U (en) | 2016-03-07 | 2016-03-07 | System for be used for medium temperature pyrolysis and carbonization of municipal sludge flue gas mummification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173426.1U CN205528592U (en) | 2016-03-07 | 2016-03-07 | System for be used for medium temperature pyrolysis and carbonization of municipal sludge flue gas mummification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205528592U true CN205528592U (en) | 2016-08-31 |
Family
ID=56781019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620173426.1U Active CN205528592U (en) | 2016-03-07 | 2016-03-07 | System for be used for medium temperature pyrolysis and carbonization of municipal sludge flue gas mummification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205528592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634503A (en) * | 2020-06-04 | 2020-09-08 | 吴雪群 | Dust collector for powder package |
-
2016
- 2016-03-07 CN CN201620173426.1U patent/CN205528592U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111634503A (en) * | 2020-06-04 | 2020-09-08 | 吴雪群 | Dust collector for powder package |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105602586A (en) | System for urban sludge flue gas drying middle-temperature pyrolysis carbonization | |
| CN204079889U (en) | A kind of pyrolysis plant of organic solid waste process | |
| CN102503055A (en) | Treatment method and treatment apparatus of oily sludge | |
| CN102964047B (en) | Treatment method of sludge drying | |
| US20110308158A1 (en) | Pyrolysis waste and biomass treatment | |
| CN105314812A (en) | Sludge treatment system and treatment method thereof | |
| CN101289621B (en) | Process for preparing carbocoal, coke tar and coal gas by treating bovey coal by suspending pyrogenation device | |
| CN102329631B (en) | Revolving-scraper type biomass pyrolysis reactor | |
| CN105417923B (en) | A kind of sludge drying system | |
| CN103666505A (en) | Equipment for reducing and transforming household garbage or organic waste into energy resources | |
| WO2019050431A1 (en) | Method for utilizing solid carbon-containing waste by pyrolysis and waste processing complex for implementing same | |
| CN101445737B (en) | Internal combustion type heating rotating cone type biomass pyrolysis liquefaction device | |
| CN101585535A (en) | The preparation facilities of residual energy reclaiming type biomass granular activated carbon | |
| CN103822213A (en) | Integrated technology and system for urban sludge heat dehydration, waste heat drying and fluidized incineration | |
| CN105778945B (en) | It is pyrolyzed the system and method for biomass | |
| CN103524008B (en) | Automatic processing handling process for zero discharge of sludge for urban sewage plant | |
| CN112845504A (en) | Household garbage resource utilization treatment process | |
| CN106675589A (en) | Exhaust gas and waste heat recovery technology for biochar preparation by sludge reduction gasification | |
| CN105950195A (en) | Cocurrent downward circulating fluidized bed millisecond pyrolysis and liquefaction technology for biomass | |
| CN106978214A (en) | A kind of system and method for refuse pyrolysis | |
| CN102643001B (en) | Fluidization heat accumulation type sludge low-temperature catalytic pyrolysis method and device thereof | |
| CN102372414A (en) | Method for processing sludge by carbonization and equipment thereof | |
| CN205528591U (en) | A reaction unit for pyrolysis and carbonization that gives up admittedly organically | |
| CN205528592U (en) | System for be used for medium temperature pyrolysis and carbonization of municipal sludge flue gas mummification | |
| CN202279767U (en) | Oily sludge treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: System for urban sludge flue gas drying middle-temperature pyrolysis carbonization Effective date of registration: 20171208 Granted publication date: 20160831 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Hubei Jiade Technology Co., Ltd. Registration number: 2017420000043 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181220 Granted publication date: 20160831 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Hubei Jiade Technology Co., Ltd. Registration number: 2017420000043 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: System for urban sludge flue gas drying middle-temperature pyrolysis carbonization Effective date of registration: 20181228 Granted publication date: 20160831 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Hubei Jiade Technology Co., Ltd. Registration number: 2018420000080 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20191224 Granted publication date: 20160831 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co., Ltd. Pledgor: Hubei Jiade Technology Co., Ltd. Registration number: 2018420000080 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |