CN206927848U - A kind of domestic garbage pyrolysis system - Google Patents
A kind of domestic garbage pyrolysis system Download PDFInfo
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- CN206927848U CN206927848U CN201720414519.3U CN201720414519U CN206927848U CN 206927848 U CN206927848 U CN 206927848U CN 201720414519 U CN201720414519 U CN 201720414519U CN 206927848 U CN206927848 U CN 206927848U
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Abstract
The utility model discloses a kind of domestic garbage pyrolysis system, it includes pyrolysis oven, the exhaust pipe interface of pyrolysis oven is connected with cooling down the gas approach of pipe sleeve, the exhanst gas outlet of cooling pipe sleeve is connected with the gas approach of cyclone dust removal cooling device, the exhanst gas outlet of cyclone dust removal cooling device and the gas approach of heat exchanger connect, the exhanst gas outlet of heat exchanger connects with the gas approach of biomass filler purifying column, the exhanst gas outlet of biomass filler purifying column is connected with the gas approach of depth deacidification purifying column, and the exhanst gas outlet of depth deacidification purifying column is connected with chimney.The utility model has filled up the blank of middle and small scale garbage as resource processing.
Description
Technical field
The present invention relates to a kind of domestic garbage pyrolysis system.
Background technology
With the fast development of social economy, China's generation increases year by year, composition is increasingly sophisticated, especially I
State's major part Small Urban area." 12 " period, the opportunity that China is renovated in flakes using new countryside construction and rural environment,
Major part Small Urban establishes more perfect refuse collection and movement system, improves house refuse and clears rate, but lives
Waste treatment facility auxiliary construction lags.At present, the small towns in China 60% does not meet the treatment facility of standard requirement, mainly adopts
With the tupe of " village is collected, town is transported, county (city) focuses on " or using the simple processing burned and simply filled on the spot
Mode.No.1 Central File in 2017 clearly proposes that Promote rural house refuse administers special campaigns.House and town and country construction portion
Related personnel represents that China will carry out residents in rural community recycling demonstration pilot project in 100, whole nation county, by China's agriculture
Domestic rubbish disposal rate in village's brings up to the 90% of the year two thousand twenty from 60% in 2016.
Small Urban house refuse has the characteristics that yield is small and scattered, complicated component intractability is big, and house refuse is defended
The processing modes such as raw landfill, compost, burning electricity generation receive fortune into larger, the house refuse with processing this height, secondary environmental pollution risk
Pyrolytic gasification technology is paid close attention to by more and more people, but in actual application usually there arises a problem that:House refuse
The oxygen supply of reaction unit same level is uneven, causes same level rubbish oxidation rate different, the heat distribution discharged
It is uneven, so that house refuse reaction in part is incomplete;The residence time in reaction unit of gas caused by heat treatment is short, high
Calorific value composition such as CO, CH4、 H2Oxidation reaction occurs Deng inabundant, causes the thermal efficiency low, low heat value composition such as tar fills in reaction
It is too short to put the middle residence time, is not decomposed fully, increases vent gas treatment difficulty;Amount of heat is by tail gas caused by oxidation reaction
Take away, be unfavorable for forming hot conditions by the way that house refuse heat is personal, generally require to add auxiliary fuel.
The content of the invention
A kind of it is contemplated that overcome the deficiencies in the prior art, there is provided domestic garbage pyrolysis system.
In order to achieve the above object, technical scheme provided by the invention is:
The domestic garbage pyrolysis system includes pyrolysis oven, the cigarette of the exhaust pipe interface and cooling pipe sleeve of the pyrolysis oven
Gas import is connected, and the exhanst gas outlet of the cooling pipe sleeve is connected with the gas approach of cyclone dust removal cooling device, and the whirlwind removes
The exhanst gas outlet of dirt cooling device and the gas approach of heat exchanger are connected, and exhanst gas outlet and the biomass of the heat exchanger are filled out
Expect the gas approach connection of purifying column, the flue gas of the exhanst gas outlet and depth deacidification purifying column of the biomass filler purifying column enters
Mouth connection, the exhanst gas outlet of the depth deacidification purifying column are connected with chimney;The cyclone dust removal cooling device, heat exchanger and
The bottom of biomass filler purifying column is equipped with tar outlet, and the tar outlet is connected (tar storage pool with tar storage pool
Primarily to the tar of storage flue gas condensing, then in reuse to pyrolysis oven);The cooling collar also with cooling water circulation pond
Connection, the cooling water circulation pond is connected with heat exchanger;The domestic garbage pyrolysis system also includes alkali lye pond, the alkali lye
Pond is connected with the lye import of depth deacidification purifying column, and the lye export of the depth deacidification purifying column connects with spent lye sedimentation basin
Connect, the spent lye sedimentation basin is connected with alkali lye pond again, and the also external lime stone silo in the alkali lye pond (it is molten to be used for lime under agitation
Solution).
Wherein, the pipeline that the tar outlet is connected with tar storage pool is provided with oiling waste water pump.
The domestic garbage pyrolysis stove includes the body of heater supported by support, is provided with charging aperture at the top of body of heater, bottom of furnace body is set
There is slag notch;The body of heater inner chamber from top to bottom forms drying layer, pyrolytic gasification layer and burning zone, the drying layer and pyrolysis gas
Change layer connection, the pyrolytic gasification layer connects with burning zone;The drying layer lower end is provided with the first water laid in the horizontal direction
Flat heat-conducting plate, the pyrolytic gasification layer lower end are provided with the second horizontal heat-conducting plate laid in the horizontal direction, first water
Flat heat-conducting plate and the second horizontal heat-conducting plate on the inside of furnace wall with being connected;It is provided with what is laid in the horizontal direction in the pyrolytic gasification layer
Upper circulating flue gas reuse pipe, the burning zone is interior to be provided with the lower circulating flue gas reuse pipe laid in the horizontal direction, the upper circulation
Flue gas reuse pipe connects with lower circulating flue gas reuse pipe, the upper circulating flue gas reuse pipe and lower circulating flue gas reuse Guan Junyu stoves
Connected on the inside of wall, the lower circulating flue gas reuse pipe is provided with the cloth wind vertically and horizontally aligned with lower circulating flue gas reuse pipe
Manage, passage is equipped with the upper circulating flue gas reuse pipe, lower circulating flue gas reuse pipe and wind-distributing pipe;The burning zone periphery
Dual firing chamber is equipped with, the dual firing chamber connects with burning zone inner chamber, and the dual firing chamber is provided with exhaust pipe connector.
The upper circulating flue gas reuse pipe is arranged at pyrolytic gasification layer upper end, and the lower circulating flue gas reuse pipe is arranged at combustion
Burn layer lower end.
The position that the lower circulating flue gas reuse pipe is in below dual firing chamber.
Perforate ventilation directed downwardly is equipped with the upper circulating flue gas reuse pipe, lower circulating flue gas reuse pipe and wind-distributing pipe
Hole.
Vertical heat transfer plate is additionally provided with the body of heater inner chamber.
The slag notch is connected with scummer.The scummer is screw slag removing device.
The upper circulating flue gas reuse pipe passes through the pipeline communication outside body of heater with lower circulating flue gas reuse pipe.
The upper circulating flue gas reuse pipe is connected by the pipeline outside body of heater with flue gas recirculation cavity, flue gas recirculation cavity
It is connected again by the pipeline outside body of heater with lower circulating flue gas reuse pipe.Flue gas recirculation cavity is used to remove steam, increase oxygen supply.
The body of heater is cylinder or conical shape.
The invention will be further described below:
Domestic garbage pyrolysis system of the present invention is mainly under conditions of oxygen deprivation or anoxic, using organic in house refuse
The thermal instability of waste component cracks at high temperature, so as to deviate from volatile materials, eventually become combustible gas, tar and
A small amount of charcoal shape residue, combustible gas and tar carry out oxygen-enriched combusting reuse.By to oxygen-supplying amount, air inducing acc power, charging in stove
Speed, deslagging rotating speed etc. regulate and control so that be stably divided into stove drying layer (150-200 DEG C), pyrolytic gasification layer (200-650 DEG C),
Burning zone (850-1100 DEG C).Flue gas from pyrolysis oven come out after trend be:Flue gas cooling collar --- cyclone dust removal+cold
But --- heat exchanger --- biomass filler purifying column --- depth deacidification purifying column (alkali lye washing+demisting+charcoal absorption
Integrated functionality) --- arrange outside chimney.
The domestic garbage pyrolysis system feeding uses intermittent feeding mode, selects feeding platform+trapezoidal with suiting measures to local conditions
Feed chute or rubbish storing bucket+lifting hopper, close charging aperture after charging.Pyrolytic gasification main reaction stove is from top to down
It is divided into drying layer, pyrolytic gasification layer, oxygen-enriched combusting layer and dual firing chamber.Drying layer upper end is charging aperture, and its lower end is provided with herringbone
Supporting plate (this is the first heat-conducting plate, and pyrolytic gasification layer lower end is then provided with the second heat-conducting plate), supporting plate is connected with furnace wall, main to rise
Buffering, the effect of heat conduction, realize horizontal heat conduction, it is ensured that same level uniform heat distribution.It is provided below in the first heat-conducting plate
There is fuel gas reuse pipe (upper circulating flue gas reuse pipe), by the mainly moisture and the pyrolysis gas (high fever of reduction decomposition by evaporating
It is worth component such as CO, CH4, H2 etc. and low heat value component such as aromatic alcohol and heavy oil etc.) the fuel gas suction flue gas recirculation pipe of composition
Road is used for pyrolytic gasification layer and drying layer by lower circulating flue gas reuse pipe reuse to oxygen-enriched combusting layer, the heat of release.It is oxygen-enriched
The high temperature air of carbon monoxide, alkanes gas and abundance that burning zone does not burn thoroughly is mixed into same with oxygen-enriched combusting layer
Dual firing chamber on horizontal plane, two sections of oxygen-excess combustions are carried out in dual firing chamber, for ignition temperature up to 900-1100 DEG C, the residence time is big
In 2 seconds, fully burning generation high-temperature flue gas entered flue gas purification system in flue after multiple baffling, sedimentation dedusting.Oxygen-enriched combustion
It is after-flame layer and ash bucket to burn below layer, and clinker is periodically discharged after high-temperature process by screw slag removing device.
Using domestic garbage pyrolysis system of the present invention, house refuse is transported to without sorting by garbage transporting vehicle
The trapezoidal feed chute of feeding platform, uniformly entered by distributing device after the coarse rack of pyrolysis gasification furnace top charging aperture sifts out bulk
Enter pyrolysis gasification furnace, after lighting first, house refuse, which starts to decompose, discharges substantial amounts of heat, without adding any auxiliary combustion again
Material, by being precisely controlled to the oxygen-supplying amount of pyrolysis gasification furnace, charging rate, the reuse of combustible gas, deslagging speed, hot-air exists
Air-introduced machine effect is lower and house refuse move toward one another, house refuse pass through drying layer, pyrolytic gasification layer and combustion successively from top to bottom
Layer is burnt, in-furnace temperature is maintained at 850-1100 DEG C, continuous stable operation incessantly in 24 hours, is eventually converted into mixed flue gas
(heat content, combustible gas, tar, steam, dust, sulfur dioxide, hydrogen chloride etc.) and a small amount of clinker.Can caused by pyrolytic gasification layer
Combustion gas body circulation to burning zone and dual firing chamber burns again, realizes the thorough decomposition to materials such as dioxin in flue gas, tar, subtracts
The discharge of of low pollution thing, while greatly improve systematic heat utilization rate.Tail gas is removed using cyclone dust removal, the heat exchange of flue gas chilling, rice husk
The measure such as dirt and tar, alkali lye washing, demisting, charcoal absorption effectively removes dust, SO2, HCl, tar, NOx in flue gas
With the pollutant such as heavy metal, it is ensured that tail gas qualified discharge;Caused useless rice husk, sedimentation basin bed mud can be mixed into during tail gas clean-up
House refuse reuse to pyrolysis gasification furnace is handled.Flue gas heat is water cooled heat-exchange system absorption, produces hot water;Clinker is through automatic row
Slag system is discharged, the raw material as environment-friendly building materials.
Compared with prior art, the present invention has the advantages that:
(1) refuse pyrolysis gasification technology brake specific exhaust emission is up to standard, non-secondary pollution
Waste incineration and generating electricity is the single treatment mould directly burned to rubbish in the case of addition coal and fuel oil
Formula, because harmful substance burning is not thorough, it is incomplete to decompose, it is directly discharged to form secondary pollution in air with flue gas, and due to
Stress the utilization to heat energy power-generating, furnace temperature is difficult stable more than 850 degree, causes bioxin yield to increase;In addition, fermentation
Or the pretreatment such as drying also produces the percolate of high number, it accounts for the 33% of rubbish gross weight.Therefore, waste incineration skill
Art pollution is larger, and three-protection design difficulty is big.
The technology effective integrations such as pyrolytic gasification, combustible gas oxygen-enriched combusting and second-time burning are passed through and control pyrolysis by the present invention
The oxygen-supplying amount of gasification layer, realize that the pollutant yield such as bioxin substantially reduces;By fuel gas in oxygen-enriched combusting layer and two
Fire indoor oxygen-excess combustion, by temperature control at 850-1100 DEG C, gas residence time is more than 2 seconds, make polychlorinated biphenyl material,
The completely burneds such as carbon residue are decomposed, the pollutant such as thorough bioxin;Flue gas chilling heat-exchange system by temperature by being rapidly cooled to 200
DEG C and it is following, prevent decomposed polychlorinated biphenyl material in CuCl2, C atoms catalysis under once again He Cheng bioxin , bioxin arrange
Concentration is put to be far below《Consumer waste incineration contamination control standard》(GB 18485-2014), better than EU criteria, this is the present invention
The maximum difference directly burned with rubbish.In addition, flue gas removes through cyclone dust removal, chilling heat exchange, wood chip dedusting, washing (alkali lye)
After dirt desulfurization, charcoal absorption processing, other pollutants are below relevant national standard.
(2) dyestuff is aided in without adding, operating cost is low
In addition to extraneous auxiliary fuel being needed when being reruned after lighting a fire or overhauling first, this equipment nothing during stable operation
Any auxiliary fuel need to be added again, and only relying on rubbish itself calorific value can continually and steadily run.This equipment in stable operation, because
Oxygen-supplying amount is small, pollutant yield is few, reduce further power consumption, water consume and the fume treatment cost of operation.Use rubbish heat
Solution gasification processing equipment and technology, direct processing cost is only 1/5th of conventional art, even lower.
(3) without sorting, simple to operate, garbage disposal scope is wide
Waste incineration method processing rubbish technology comes from American-European and Japan, but the refuse classification specification of these areas and country,
Present rubbish unicity, high heating value, it is drier the characteristics of.And the municipal refuse of China particularly central and west regions is universal very miscellaneous
Disorderly, moisture content is also very high, and this just makes import equipment and counterfeit devices be built up in Chinese " not acclimatized ", part huge sum of money investment
Garbage burning factory just operation just stop production.
The present invention has high-adaptability, and rubbish is without stacking fermentation diafiltration, and without any classification, the rubbish of mixed collection is straight
Stove processing is accessed, is especially suitable for China's domestic waste complicated component, inconvenience sorting, the characteristics of moisture content is high, calorific capacity is low.
Refuse pyrolysis gasification technology more adapts to the garbage disposal of the compound of China, low heat value, high-moisture percentage than directly burning.
(4) highly integrated, equipment investment is low
It is whole using systematization by pyrolysis gasification furnace and dual firing chamber, cyclone dust collectors together with cooling device organic integration
Body designs, and realizes integrated device height, modularization, miniaturization, main equipment floor space is only 450-650 ㎡, reduces and sets
Standby investment.
(5) Automatic Control, stable operation are simple to operate
Fed back, the start and stop and frequency control clicked on through PLC automatic control system adjust automatically, realized by sensor signal
House refuse charging, oxygen-supplying amount, pyrolytic gasification temperature and deslagging speed are precisely controlled.All instructions, real-time display and prison
Control is arranged on switch board, simple to operate, safe and reliable to operation.
(6) refuse pyrolysis gasification technology treatment scale can realize miniaturization, creatively solve at county level, small towns and at village level
Garbage disposal problem.
In a word, domestic garbage pyrolysis system of the present invention reduces bioxin by controlling the oxygen-supplying amount of pyrolytic gasification layer
Generation, by oxygen-excess combustion of the fuel gas in oxygen-enriched combusting layer and dual firing chamber, thoroughly decompose bioxin, it is anxious to pass through flue gas
Cold heat exchange prevents He Cheng bioxin once again, and above-mentioned three lines of defence thoroughly solves bioxin problem of environmental pollution.Horizontal cloth is set
Airduct, same level even distributing wind is realized, make whole thermal reaction apparatus continuity stable operation.Self-loopa flue gas system is set
System, reduces the cost of whole thermal reaction apparatus, reduces whole complex technical process degree, fuel gas reuse pipe is submerged in pyrolysis
In the material of gasification layer, force vapor caused by drying layer to be turned back through pyrolytic gasification layer, improve house refuse gas production;Compel
Thermal decomposition product and up high-temperature flue gas is turned back, reduce tar content and dust concentration in flue gas.Existing house refuse is burnt
It is big, higher using threshold to burn its technical sophistication that generates electricity, investment, not only needs using economic base to support, it is necessary to have certain
Scale effect.The newly-built garbage incinerating power plant in China, treatment scale are generally more than 600 ton per days, 1.2 ten thousand kilowatts of (roots of installing
Industrial policy according to country to thermoelectricity, less than 50,000 kilowatts of installation are to eliminate object).The present invention has filled up middle and small scale rubbish money
The blank of sourceization processing.
Brief description of the drawings
Fig. 1 is the structural representation of pyrolysis oven in domestic garbage pyrolysis system of the present invention;
Fig. 2 is another structural representation of pyrolysis oven in domestic garbage pyrolysis system of the present invention;
Fig. 3 is Figure 1A-A sectional views;
Fig. 4 is Figure 1B-B sectional views;
Fig. 5 is the structural representation of domestic garbage pyrolysis system of the present invention.
In figure:1st, body of heater;2nd, drying layer;3rd, pyrolytic gasification layer;4th, burning zone;5th, upper circulating flue gas reuse pipe;6th, followed under
Ring flue gas reuse pipe;7th, dual firing chamber;8th, flue gas recirculation cavity;9th, first level heat-conducting plate;10th, the second horizontal heat-conducting plate;11st, cloth
Airduct;12nd, exhaust pipe connector;13rd, support;14th, charging aperture;15th, slag notch;16th, vertical heat transfer plate;17th, scummer;
18th, pipe sleeve is cooled down;19th, cyclone dust removal cooling device;20th, heat exchanger;21st, biomass filler purifying column;22nd, depth deacidification is net
Change tower;23rd, tar storage pool;24th, cooling water circulation pond;25th, alkali lye pond;26th, spent lye sedimentation basin;27th, lime stone silo;
28th, oiling waste water pump;29th, chimney.
Embodiment
Embodiment 1
Referring to Fig. 1, Fig. 3 and Fig. 4,
The domestic garbage pyrolysis system includes pyrolysis oven, exhaust pipe interface 12 and the cooling pipe sleeve 18 of the pyrolysis oven
Gas approach connection, it is described cooling pipe sleeve 18 exhanst gas outlet be connected with the gas approach of cyclone dust removal cooling device 19, institute
The exhanst gas outlet for stating cyclone dust removal cooling device 19 is connected with the gas approach of heat exchanger 20, the flue gas of the heat exchanger 20
Outlet connects with the gas approach of biomass filler purifying column 21, the exhanst gas outlet and depth of the biomass filler purifying column 21
The gas approach connection of deacidification purifying column 22, the exhanst gas outlet of the depth deacidification purifying column 22 are connected with chimney 29;The rotation
The bottom of wind dust-cleaning and refrigerating mechanism 19, heat exchanger 20 and biomass filler purifying column 21 is equipped with tar outlet, the tar
Outlet is connected with tar storage pool 23;The cooling collar 18 is also connected with cooling water circulation pond 24, the cooling water circulation pond
24 are connected with heat exchanger 20;The domestic garbage pyrolysis system also includes alkali lye pond 25, and the alkali lye pond 25 deacidifies with depth
The lye import connection of purifying column 22, the lye export of the depth deacidification purifying column 22 are connected with spent lye sedimentation basin 26, institute
State spent lye sedimentation basin 26 to be connected with alkali lye pond 25 again, the also external lime stone silo 27 in the alkali lye pond 25.
Wherein, the pipeline that the tar outlet is connected with tar storage pool 23 is provided with oiling waste water pump 28.
The domestic garbage pyrolysis stove includes the body of heater 1 supported by support 13, and the top of body of heater 1 is provided with charging aperture 14, body of heater
1 bottom is provided with slag notch 15;The inner chamber of body of heater 1 from top to bottom forms drying layer 2, pyrolytic gasification layer 3 and burning zone 4, described
Drying layer 2 connects with pyrolytic gasification layer 3, and the pyrolytic gasification layer 3 connects with burning zone 4;The lower end of drying layer 2 is provided with along water
Square to laying first level heat-conducting plate 9, the lower end of pyrolytic gasification layer 3 is provided with the second level for laying in the horizontal direction and led
Hot plate 10, the 9 and second horizontal heat-conducting plate 10 of first level heat-conducting plate on the inside of furnace wall with being connected;The pyrolytic gasification
The upper circulating flue gas reuse pipe 5 laid in the horizontal direction is provided with layer 3, is provided with what is laid in the horizontal direction in the burning zone 4
Lower circulating flue gas reuse pipe 6, the upper circulating flue gas reuse pipe 5 connect with lower circulating flue gas reuse pipe 6, the upper circulating flue gas
With lower circulating flue gas reuse pipe 6 with being connected on the inside of furnace wall, the lower circulating flue gas reuse pipe 6 is provided with and followed with reuse pipe 5
The vertically and horizontally aligned wind-distributing pipe 11 of ring flue gas reuse pipe 6, the upper circulating flue gas reuse pipe 5, lower circulating flue gas reuse pipe 6
Passage is equipped with wind-distributing pipe 11;The peripheral ring of burning zone 4 is provided with dual firing chamber 7, the dual firing chamber 7 with burning zone 4
Chamber connects, and the dual firing chamber 7 is provided with exhaust pipe connector 12.
The upper circulating flue gas reuse pipe 5 is arranged at the upper end of pyrolytic gasification layer 3, and the lower circulating flue gas reuse pipe 6 is set
In the lower end of burning zone 4.
The lower circulating flue gas reuse pipe 6 is in the position of the lower section of dual firing chamber 7.
Vertical heat transfer plate 16 is additionally provided with the inner chamber of body of heater 1.
The slag notch 15 is connected with scummer 17.The scummer 17 is screw slag removing device.
The upper circulating flue gas reuse pipe 5 passes through the pipeline communication outside body of heater 1 with lower circulating flue gas reuse pipe 6.
The body of heater 1 is cylinder or conical shape.
Embodiment 2
Referring to Fig. 2, Fig. 3 and Fig. 4,
The domestic garbage pyrolysis system includes pyrolysis oven, exhaust pipe interface 12 and the cooling pipe sleeve 18 of the pyrolysis oven
Gas approach connection, it is described cooling pipe sleeve 18 exhanst gas outlet be connected with the gas approach of cyclone dust removal cooling device 19, institute
The exhanst gas outlet for stating cyclone dust removal cooling device 19 is connected with the gas approach of heat exchanger 20, the flue gas of the heat exchanger 20
Outlet connects with the gas approach of biomass filler purifying column 21, the exhanst gas outlet and depth of the biomass filler purifying column 21
The gas approach connection of deacidification purifying column 22, the exhanst gas outlet of the depth deacidification purifying column 22 are connected with chimney 29;The rotation
The bottom of wind dust-cleaning and refrigerating mechanism 19, heat exchanger 20 and biomass filler purifying column 21 is equipped with tar outlet, the tar
Outlet is connected with tar storage pool 23;The cooling collar 18 is also connected with cooling water circulation pond 24, the cooling water circulation pond
24 are connected with heat exchanger 20;The domestic garbage pyrolysis system also includes alkali lye pond 25, and the alkali lye pond 25 deacidifies with depth
The lye import connection of purifying column 22, the lye export of the depth deacidification purifying column 22 are connected with spent lye sedimentation basin 26, institute
State spent lye sedimentation basin 26 to be connected with alkali lye pond 25 again, the also external lime stone silo 27 in the alkali lye pond 25.
Wherein, the pipeline that the tar outlet is connected with tar storage pool 23 is provided with oiling waste water pump 28.
The domestic garbage pyrolysis stove includes the body of heater 1 supported by support 13, and the top of body of heater 1 is provided with charging aperture 14, body of heater
1 bottom is provided with slag notch 15;The inner chamber of body of heater 1 from top to bottom forms drying layer 2, pyrolytic gasification layer 3 and burning zone 4, described
Drying layer 2 connects with pyrolytic gasification layer 3, and the pyrolytic gasification layer 3 connects with burning zone 4;The lower end of drying layer 2 is provided with along water
Square to laying first level heat-conducting plate 9, the lower end of pyrolytic gasification layer 3 is provided with the second level for laying in the horizontal direction and led
Hot plate 10, the 9 and second horizontal heat-conducting plate 10 of first level heat-conducting plate on the inside of furnace wall with being connected;The pyrolytic gasification
The upper circulating flue gas reuse pipe 5 laid in the horizontal direction is provided with layer 3, is provided with what is laid in the horizontal direction in the burning zone 4
Lower circulating flue gas reuse pipe 6, the upper circulating flue gas reuse pipe 5 connect with lower circulating flue gas reuse pipe 6, the upper circulating flue gas
With lower circulating flue gas reuse pipe 6 with being connected on the inside of furnace wall, the lower circulating flue gas reuse pipe 6 is provided with and followed with reuse pipe 5
The vertically and horizontally aligned wind-distributing pipe 11 of ring flue gas reuse pipe 6, the upper circulating flue gas reuse pipe 5, lower circulating flue gas reuse pipe 6
With perforate passage directed downwardly is equipped with wind-distributing pipe 11;The peripheral ring of burning zone 4 is provided with dual firing chamber 7, the dual firing chamber 7 with
The inner chamber of burning zone 4 connects, and the dual firing chamber 7 is provided with exhaust pipe connector 12.
The upper circulating flue gas reuse pipe 5 is arranged at the upper end of pyrolytic gasification layer 3, and the lower circulating flue gas reuse pipe 6 is set
In the lower end of burning zone 4.
The lower circulating flue gas reuse pipe 6 is in the position of the lower section of dual firing chamber 7.
Vertical heat transfer plate 16 is additionally provided with the inner chamber of body of heater 1.
The slag notch 15 is connected with scummer 17.The scummer 17 is screw slag removing device.
The upper circulating flue gas reuse pipe 5 passes through the pipeline communication outside body of heater 1 with lower circulating flue gas reuse pipe 6.
The upper circulating flue gas reuse pipe 5 is connected by the pipeline outside body of heater 1 with flue gas recirculation cavity 8, flue gas recirculation
Cavity 8 is connected by the pipeline outside body of heater 1 with lower circulating flue gas reuse pipe 6 again.
The body of heater 1 is cylinder or conical shape.
Claims (10)
1. a kind of domestic garbage pyrolysis system, it is characterised in that the domestic garbage pyrolysis system includes pyrolysis oven, the pyrolysis
The exhaust pipe interface of stove(12)With cooling down pipe sleeve(18)Gas approach connection, the cooling pipe sleeve(18)Exhanst gas outlet with
Cyclone dust removal cooling device(19)Gas approach connection, the cyclone dust removal cooling device(19)Exhanst gas outlet and heat exchange
Device(20)Gas approach connection, the heat exchanger(20)Exhanst gas outlet and biomass filler purifying column(21)Flue gas enter
Mouth connection, the biomass filler purifying column(21)Exhanst gas outlet and depth deacidification purifying column(22)Gas approach connection,
The depth deacidification purifying column(22)Exhanst gas outlet and chimney(29)Connection;The cyclone dust removal cooling device(19), heat hand over
Parallel operation(20)With biomass filler purifying column(21)Bottom be equipped with tar outlet, the tar outlet and tar storage pool
(23)Connection;The cooling pipe sleeve(18)Also with cooling water circulation pond(24)Connection, the cooling water circulation pond(24)Handed over heat
Parallel operation(20)Connection;The domestic garbage pyrolysis system also includes alkali lye pond(25), the alkali lye pond(25)It is net with depth deacidification
Change tower(22)Lye import connection, the depth deacidifies purifying column(22)Lye export and spent lye sedimentation basin(26)Even
Connect, the spent lye sedimentation basin(26)Again with alkali lye pond(25)Connection, the alkali lye pond(25)Also external lime stone silo(27).
2. domestic garbage pyrolysis system as claimed in claim 1, it is characterised in that the tar outlet and tar storage pool
(23)The pipeline of connection is provided with oiling waste water pump(28).
3. domestic garbage pyrolysis system as claimed in claim 1, it is characterised in that the pyrolysis oven is included by support(13)Branch
The body of heater of support(1), body of heater(1)Top is provided with charging aperture(14), body of heater(1)Bottom is provided with slag notch(15), the body of heater(1)It is interior
Chamber from top to bottom forms drying layer(2), pyrolytic gasification layer(3)And burning zone(4), the drying layer(2)With pyrolytic gasification layer(3)
Connection, the pyrolytic gasification layer(3)With burning zone(4)Connection;The drying layer(2)Lower end is provided with the laid in the horizontal direction
One horizontal heat-conducting plate(9), the pyrolytic gasification layer(3)Lower end is provided with the second horizontal heat-conducting plate laid in the horizontal direction(10),
The first level heat-conducting plate(9)With the second horizontal heat-conducting plate(10)With being connected on the inside of furnace wall;The pyrolytic gasification layer(3)It is interior
Provided with the upper circulating flue gas reuse pipe laid in the horizontal direction(5), the burning zone(4)Interior be provided with is laid down in the horizontal direction
Circulating flue gas reuse pipe(6), the upper circulating flue gas reuse pipe(5)With lower circulating flue gas reuse pipe(6)Connection, the upper circulation
Flue gas reuse pipe(5)With lower circulating flue gas reuse pipe(6)With being connected on the inside of furnace wall, the lower circulating flue gas reuse pipe(6)On
Provided with lower circulating flue gas reuse pipe(6)Vertically and horizontally aligned wind-distributing pipe(11), the upper circulating flue gas reuse pipe(5)、
Lower circulating flue gas reuse pipe(6)And wind-distributing pipe(11)On be equipped with passage;The burning zone(4)Peripheral ring is provided with dual firing chamber
(7), the dual firing chamber(7)With burning zone(4)Inner chamber connects, the dual firing chamber(7)Provided with exhaust pipe connector(12).
4. domestic garbage pyrolysis system as claimed in claim 3, it is characterised in that the upper circulating flue gas reuse pipe(5)If
It is placed in pyrolytic gasification layer(3)Upper end, the lower circulating flue gas reuse pipe(6)It is arranged at burning zone(4)Lower end.
5. domestic garbage pyrolysis system as claimed in claim 3, it is characterised in that the lower circulating flue gas reuse pipe(6)Place
In dual firing chamber(7)The position of lower section.
6. domestic garbage pyrolysis system as claimed in claim 3, it is characterised in that the body of heater(1)It is additionally provided with inner chamber vertical
Straight heat-conducting plate(16).
7. domestic garbage pyrolysis system as claimed in claim 3, it is characterised in that the slag notch(15)With scummer(17)
Connection.
8. domestic garbage pyrolysis system as claimed in claim 3, it is characterised in that the upper circulating flue gas reuse pipe(5)With
Lower circulating flue gas reuse pipe(6)Pass through body of heater(1)Outside pipeline communication.
9. domestic garbage pyrolysis system as claimed in claim 8, it is characterised in that the upper circulating flue gas reuse pipe(5)It is logical
Cross body of heater(1)Outside pipeline and flue gas recirculation cavity(8)Connection, flue gas recirculation cavity(8)Pass through body of heater again(1)Outside pipe
Road and lower circulating flue gas reuse pipe(6)Connection.
10. the domestic garbage pyrolysis system as described in any one of claim 3 to 9, it is characterised in that the body of heater(1)For circle
Cylinder or conical shape.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106833695A (en) * | 2017-04-19 | 2017-06-13 | 湖南力永环保科技股份有限公司 | A kind of domestic garbage pyrolysis system |
CN108662587A (en) * | 2018-06-07 | 2018-10-16 | 广西凯泉环保工程有限公司 | A kind of biological deodorizing and pyrolysis rubbish processing to be harmless system |
-
2017
- 2017-04-19 CN CN201720414519.3U patent/CN206927848U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106833695A (en) * | 2017-04-19 | 2017-06-13 | 湖南力永环保科技股份有限公司 | A kind of domestic garbage pyrolysis system |
CN108662587A (en) * | 2018-06-07 | 2018-10-16 | 广西凯泉环保工程有限公司 | A kind of biological deodorizing and pyrolysis rubbish processing to be harmless system |
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