CN208279576U - organic sludge pyrolysis gasification system - Google Patents
organic sludge pyrolysis gasification system Download PDFInfo
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- CN208279576U CN208279576U CN201721893178.9U CN201721893178U CN208279576U CN 208279576 U CN208279576 U CN 208279576U CN 201721893178 U CN201721893178 U CN 201721893178U CN 208279576 U CN208279576 U CN 208279576U
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Abstract
The utility model discloses organic sludge pyrolysis gasification systems, it include: organic sludge pyrolysis gasification furnace, high-temperature dust removing device and waste heat boiler, superposed pyrolysis chamber and the gasification chamber positioned at lower part are defined in organic sludge pyrolysis gasification furnace, wherein, multiple heat accumulation type radiant tubes are disposed in pyrolysis chamber, top has dry organic sludge entrance；The indoor lower part of gasification chamber is provided with oxygen coil pipe and steam pipe coil, has multiple oxygen through-holes on oxygen coil pipe, has multiple steam passage holes on steam pipe coil, the indoor bottom of gasification chamber is exported with lime-ash；There is high-temperature oil gas outlet, high-temperature dust removing device is connected with high-temperature oil gas outlet on side wall between pyrolysis chamber and gasification chamber；Waste heat boiler is connected with the high temperature purification oil gas vent of high-temperature dust removing device.One step of the clean and effective conversion during organic sludge treatment can be finally realized using the system.
Description
Technical field
The utility model belongs to sludge treatment field, specifically, the utility model relates to organic sludge pyrolytic gasification systems
System.
Background technique
At present there are mainly three types of sludge treating methods: landfill, land use, burning.Landfill is traditional Treatment of Sludge side
Formula, since the place that can generate secondary pollution and suitable Sludge landfill is more and more limited, the application of Sludge landfill has been received
Limitation.Land use mainly includes improvement in places such as agricultural sludge, forest and gardening, discarded mining site etc., due to containing in sludge
There is venomous injurant, land use may cause soil or water pollution.Sludge incineration is in recent years using wide disposition
Mode, the advantage is that can realize to the maximum extent the minimizing of sludge, the disadvantage is that easily causing secondary pollution, and having in sludge
Machine component utilization rate is low.There are two types of modes for sludge incineration disposition: first is that directly burn, i.e., it is dewatered sludge incorporation coal or oil etc. is auxiliary
Combustion-supporting material after-combustion.Second is that sludge burns again after desiccation, i.e., burned after dewatered sludge further progress drying and other treatment.
Municipal sludge is both pollutant and a kind of resource.Contain large amount of organic matter in sludge, there is fuel value.I
The dewatered sludge Treatment and recovery of state is using technology still without forming a unified thinking.Research safety, efficiently,
Economic sludge treatment technique realizes the minimizing of sludge, stabilisation, innoxious as the hot issue widely paid close attention to.Sludge
Pyrolysis is using the thermal instability of organic matter in sludge, and the pyrolysis processing technique of sludge mainly includes rotary kiln, fixation at present
The techniques such as bed, fluidized bed are divided into according to heating method and directly heating and indirect heating, generally take hot load due to directly heating
Body, therefore process can be related to the heating of heat carrier, separation etc., process flow is complicated；And take the destructive distillation side of indirect heating manner
Formula, the thermal efficiency is not high, and processing capacity is small.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose organic sludge pyrolysis gasification system with a novel purpose, can be finally realized at organic sludge using the system
One step of clean and effective conversion during reason.
One aspect according to the present utility model, the utility model proposes organic sludge pyrolysis gasification systems, according to this
The embodiment of utility model, the pyrolysis gasification system include:
Organic sludge pyrolysis gasification furnace, define in the organic sludge pyrolysis gasification furnace superposed pyrolysis chamber and
Gasification chamber positioned at lower part, wherein
Multiple heat accumulation type radiant tubes are disposed in the pyrolysis chamber, the top of the pyrolysis chamber has dry organic dirt
Mud entrance；
The indoor lower part of gasification chamber is provided with oxygen coil pipe and steam pipe coil, has multiple oxygen on the oxygen coil pipe
Vent hole, has multiple steam passage holes on the steam pipe coil, and the indoor bottom of gasification chamber has lime-ash outlet；
There is high-temperature oil gas outlet on side wall between the pyrolysis chamber and the gasification chamber,
High-temperature dust removing device, the high-temperature dust removing device has high-temperature oil gas import and high temperature purification oil gas vent, described
High-temperature oil gas import is connected with high-temperature oil gas outlet；
Waste heat boiler, the waste heat boiler have high temperature purification oil and gas import, pyrolysis gas outlet, pyrolysis oil export, water into
Mouth and steam (vapor) outlet, the high temperature purification oil and gas import are connected with the high temperature purification oil gas vent.
Using the organic sludge pyrolysis gasification system of the utility model above-described embodiment, it is dried to a degree of organic dirt
Mud enters pyrolysis chamber by the drying organic sludge entrance at the top of organic sludge pyrolysis gasification furnace, in heat accumulation type radiant tube fire-bar
Part issues raw pyrolytic reaction, obtains pyrolysis oil gas and semicoke, and pyrolysis oil gas exports in the middle part of furnace body, and the semicoke of generation enters in furnace
The gasification chamber of body lower part contacted with oxygen and steam occur combustion gasification reaction, generate coal gas of high temperature, main component be CO and
H2, gasification reaction is strong exothermal reaction, semicoke counter current contacting of the coal gas of high temperature in uphill process with whereabouts, and gas-solid is changed
Heat.Finally convert organic sludge high-efficiency cleaning to rich in H2、CO、CH4Unstripped gas, while aromatic hydrocarbons of by-product high added value
Oil product.Due to the imperfect combustion heat release of semicoke, heat is provided for pyrolysis, efficiency is higher.Therefore, the above-mentioned implementation of the utility model
The organic sludge pyrolysis gasification system of example finally realizes one step of the clean and effective conversion of organic sludge.
In addition, can also be had according to the organic sludge pyrolysis gasification system of the utility model above-described embodiment following additional
Technical characteristic:
In the present invention, the steam (vapor) outlet is connected with the steam inlet.
In the present invention, the pyrolysis chamber accounts for the 1/3-1/ of whole height in the organic sludge pyrolysis gasification furnace
2。
In the present invention, it is indoor to be horizontally set on the gasification chamber for the steam pipe coil and the oxygen coil pipe
Lower part.
In the present invention, the steam pipe coil is located at the top of the oxygen coil pipe.
In the present invention, the organic sludge pyrolysis gasification system of above-described embodiment further comprises: pyrolysis gas purification
Device, the pyrolysis air purifying apparatus are connected with the pyrolysis gas outlet.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the organic sludge pyrolysis gasification system of the utility model one embodiment.
Fig. 2 is the structural schematic diagram according to the organic sludge pyrolysis gasification system of the utility model another embodiment.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
One aspect according to the present utility model, the utility model proposes organic sludge pyrolysis gasification systems, according to this
The embodiment of utility model, as shown in Figure 1, the organic sludge pyrolysis gasification system include: organic sludge pyrolysis gasification furnace 100,
High-temperature dust removing device 200 and waste heat boiler 300.
Specific embodiment according to the present utility model is defined positioned at top in the organic sludge pyrolysis gasification furnace 100
Pyrolysis chamber 110 and the gasification chamber 120 positioned at lower part, wherein be disposed with multiple heat accumulating type spokes in the pyrolysis chamber 110
Pipe 111 is penetrated, the top of the pyrolysis chamber 110 has dry organic sludge entrance 112；
Lower part in the gasification chamber 120 is provided with oxygen coil pipe 121 and steam pipe coil 122, on the oxygen coil pipe
With multiple oxygen through-hole (not shown), there is multiple steam passage holes (not shown), the gasification chamber on the steam pipe coil
Bottom in 120 has lime-ash outlet 123；
There is high-temperature oil gas outlet 130 on side wall between the pyrolysis chamber 110 and the gasification chamber 120,
The high-temperature dust removing device 200 has high-temperature oil gas import 210 and high temperature purification oil gas vent 220, the high temperature
Oil and gas import 210 is connected with high-temperature oil gas outlet 130；
The waste heat boiler 300 has high temperature purification oil and gas import 310, pyrolysis gas outlet 320, pyrolysis oil export 330, water
Import 340 and steam (vapor) outlet 350, the high temperature purification oil and gas import 310 are connected with the high temperature purification oil gas vent 220.
Using the organic sludge pyrolysis gasification system of the utility model above-described embodiment, it is dried to a degree of organic dirt
Mud enters pyrolysis chamber by the drying organic sludge entrance at the top of organic sludge pyrolysis gasification furnace, in heat accumulation type radiant tube fire-bar
Part issues raw pyrolytic reaction, obtains pyrolysis oil gas and semicoke, and pyrolysis oil gas exports in the middle part of furnace body, and the semicoke of generation enters in furnace
The gasification chamber of body lower part contacted with oxygen and steam occur combustion gasification reaction, generate coal gas of high temperature, main component be CO and
H2, gasification reaction is strong exothermal reaction, semicoke counter current contacting of the coal gas of high temperature in uphill process with whereabouts, and gas-solid is changed
Heat.Finally convert organic sludge high-efficiency cleaning to rich in H2、CO、CH4Unstripped gas, while aromatic hydrocarbons of by-product high added value
Oil product.Due to the imperfect combustion heat release of semicoke, heat is provided for pyrolysis, efficiency is higher.Therefore, the above-mentioned implementation of the utility model
The organic sludge pyrolysis gasification system of example finally realizes one step of the clean and effective conversion of organic sludge.
The organic sludge pyrolysis gasification system of the utility model specific embodiment is described in detail below with reference to Fig. 1.
Organic sludge pyrolysis gasification furnace
Specific embodiment according to the present utility model is defined positioned at top in the organic sludge pyrolysis gasification furnace 100
Pyrolysis chamber 110 and the gasification chamber 120 positioned at lower part, wherein be disposed with multiple heat accumulating type spokes in the pyrolysis chamber 110
Pipe 111 is penetrated, the top of the pyrolysis chamber 110 has dry organic sludge entrance 112；Lower part in the gasification chamber 120
It is provided with oxygen coil pipe 121 and steam pipe coil 122, there is multiple oxygen through-hole (not shown), the steaming on the oxygen coil pipe
There are multiple steam passage holes (not shown), the bottom in the gasification chamber 120 has lime-ash outlet 123 on vapour coil pipe；It is located at
There is high-temperature oil gas outlet 130 on side wall between the pyrolysis chamber 110 and the gasification chamber 120.
It is dried to a degree of organic sludge as a result, by the organic dirt of drying at 100 top of organic sludge pyrolysis gasification furnace
Mud entrance 112 enters pyrolysis chamber 110, issues raw pyrolytic reaction in 111 heating condition of heat accumulation type radiant tube, obtains pyrolysis oil gas
And semicoke, it is pyrolyzed high-temperature oil gas outlet 130 export of the oil gas in the middle part of furnace body, the semicoke of generation enters the gasification in lower portion of furnace body
The oxygen and steam being passed through in chamber 120 with oxygen inlet 121 and steam inlet 122, which contact, occurs combustion gasification reaction, generates
Coal gas of high temperature, main component are CO and H2, gasification reaction is strong exothermal reaction, coal gas of high temperature in uphill process with whereabouts half
Burnt counter current contacting, gas-solid exchange heat.Finally convert organic sludge high-efficiency cleaning to rich in H2、CO、CH4Unstripped gas, simultaneously
The aromatic hydrocarbons oil product of by-product high added value, and by 130 export of high-temperature oil gas outlet.Due to the imperfect combustion heat release of semicoke, it is
Pyrolysis provides heat, and efficiency is higher.Therefore, the organic sludge pyrolysis gasification system of the utility model above-described embodiment is finally realized
The clean and effective one step conversion of organic sludge.
Organic sludge reaction process in organic sludge pyrolysis gasification furnace:
(1) oxidation gasification reaction of the organic matter containing charcoal is a kind of a variety of chemical reaction processes of complexity, and reaction can substantially divide
Three steps carry out: the first step, the cracking of the organic matter containing charcoal and the burning of volatile matter, second step burning and gasification, i.e., coal tar with oxygen
Gas, which reacts, generates CO and CO2Release amount of heat while, and with vapor and CO2It reacts and generates H2And CO, in gas
Xiang Zhong, H2Combustion reaction occurs with remaining oxygen again with CO, while releasing a large amount of heat.Third step gasification reaction.It is reacting
In the case where being practically free of oxygen in object, coal, methane and vapor, CO2Gasification reaction occurs, generates hydrogen and CO.
(2) the bottom semicoke discharge outlet of organic sludge pyrolysis gasification furnace, has been sequentially arranged vapor through-hole from bottom to up
With oxygen through-hole, organic sludge passes through the hyperthermia radiation heating zone on pyrolysis chamber top, organic cracking, volatile matter in sludge
Removing obtains semicoke, successively aoxidizes by vapor, oxygen inlet in semicoke dropping process, it is strong that high-temperature semi-coke meets oxygen generation
Oxidation reaction releases big calorimetric, while obtaining CO2, CO, high-temperature flue gas react upwards meet vapor, occur gasification reaction, generate
CO and H2。
(3) oxygen coil pipe 121 and steam pipe coil 122 be separately positioned on two horizontal planes be primarily intended to keep semicoke anti-
Answer process controllable, reduce to the greatest extent char Gasification reaction later period oxygen influence so that gasification reaction generations CO as much as possible with
H2, improve the formation efficiency of also Primordial Qi.
Specific embodiment according to the present utility model, in organic sludge pyrolysis gasification furnace 100, superposed pyrolysis chamber
Occupy the 1/3-1/2 of whole height in machine pyrolyzing sludge gasification furnace.The ratio of chamber and gasification chamber will be pyrolyzed thus according to needs
Example carries out division coordination, and organic sludge is pyrolyzed completely, to realize the efficient single step conversion of organic sludge, improves
Hydrocarbon yield.
Specific embodiment according to the present utility model, the lower part in the gasification chamber 120 are provided with 121 He of oxygen coil pipe
Steam pipe coil 122 has multiple oxygen through-hole (not shown) on the oxygen coil pipe, has multiple steam on the steam pipe coil
Through-hole (not shown).As a result, by way of coil pipe is set, and multiple ventholes are set on coil pipe, oxygen can be significantly improved
The dispersion degree of gas and steam, and then improve the efficiency and the uniformity of combustion gasification reaction.
The caliber of specific embodiment according to the present utility model, oxygen coil pipe 121 and steam pipe coil 122 can be 10-
The aperture of 20cm, oxygen through-hole and steam passage holes can be 5-10mm, before two neighboring oxygen through-hole or steam passage holes away from
From for 20-30mm.It is possible thereby to equably supply oxygen and steam into gasification chamber, the combustion gasification reaction effect of semicoke is improved
Rate.The uniform air distribution of oxygen, steam can be achieved, guarantee combustion gasification efficiency.
Specific embodiment according to the present utility model, the steam pipe coil 122 and the oxygen feeding disk 121 manage equal level
Lower part in the gasification chamber 120 is set, and the steam pipe coil is located at the top of the oxygen coil pipe.According to this reality
With novel specific example, oxygen coil pipe 121 or oxygen through-hole thereon export 123 about 1/8-1/6H, steam away from hot lime-ash
It is about 1/8-1/6H on oxygen coil pipe 121 that coil pipe 122 or steam passage holes thereon, which are located at, and H is the height of pyrolysis gasification furnace.
Thus, it is possible under the premise of fully ensuring that oxygen and steam do not come out of the stove external by ash and clinker zone, increase to the maximum extent oxygen and
The time that steam is inversely contacted with semicoke, so that the semicoke of bottom generated after the combustion gasification reaction that exothermicity occurs
Coal gas of high temperature plays the role of heating when rising to top, to semicoke, and the volatile matter of completion further will not be pyrolyzed in semicoke
Generation high-temperature oil gas is extracted, its conversion ratio and gas yield are improved.
Specific embodiment according to the present utility model, since the burnup gasification reaction of semicoke is exothermic reaction, and then can be with
Semicoke, which is directly applied to, using the heat that coal-char combustion gasification generates even is pyrolyzed the organic sludge not being pyrolyzed completely in chamber, into
And energy consumption can be further decreased.
High-temperature dust removing device
Specific embodiment according to the present utility model, high-temperature dust removing device 200 have high-temperature oil gas import 210 and high temperature net
Change oil gas vent 220, high-temperature oil gas import 210 is connected with high-temperature oil gas outlet 130.High-temperature oil gas high temperature is passed through as a result, to remove
Purified treatment is carried out in dirt device 200, to obtain high temperature purification oil gas.And then high-temperature oil gas is carried out at separation convenient for subsequent
Reason.
Waste heat boiler
Specific embodiment according to the present utility model, waste heat boiler 300 have high temperature purification oil and gas import 310, pyrolysis gas
Outlet 320, pyrolysis oil export 330, water inlet 340 and steam (vapor) outlet 350, high temperature purification oil and gas import 310 and high temperature purification oil
Gas outlet 220 is connected.High temperature purification oil gas is supplied to progress waste heat recycling in waste heat boiler, to obtain pyrolysis oil as a result,
And pyrolysis gas, and generate vapor.And then the heat of high temperature purification oil gas can be effectively recycled, avoid energy waste.
Specific embodiment according to the present utility model, the steam (vapor) outlet 350 and organic sludge pyrolytic gasification of waste heat boiler 300
The steam pipe coil 122 of furnace 100 is connected.It is possible thereby to the steam generated using the heat of recycling high temperature purification oil gas is used for organic
Combustion gasification reaction of the sludge in organic sludge pyrolysis gasification furnace 100, and then the heat for the high-temperature oil gas that organic sludge is generated
Amount recycling is reacted for the combustion gasification of itself, is eliminated outside and is additionally supplied steam, reduces the processing energy consumption of organic sludge.
It is pyrolyzed air purifying apparatus
Specific embodiment according to the present utility model, as shown in Fig. 2, the organic sludge pyrolysis gasification system of above-described embodiment
Further comprise: pyrolysis air purifying apparatus 400, pyrolysis air purifying apparatus 400 are connected with pyrolysis gas outlet 320.It is possible thereby into
One step carries out purified treatment to the pyrolysis gas after cooling, and then obtains purified gas product.
Specific embodiment according to the present utility model, as shown in Fig. 2, the organic sludge pyrolysis gasification system of above-described embodiment
Further comprise: oily-water seperating equipment 500, oily-water seperating equipment 500 are connected with the pyrolysis oil export 330 of waste heat boiler 300, by
This can separate the water in pyrolysis oil, and then obtain pure pyrolysis oil product.
In order to facilitate the organic sludge pyrolysis gasification system for understanding the utility model above-described embodiment, it is to using this below
The method of system processing organic sludge is described.
Embodiment according to the present utility model, this method comprises: low order organic sludge is entered confession by the organic sludge
To in the extremely organic sludge pyrolysis gasification furnace, it is pyrolyzed the low order organic sludge in the pyrolysis chamber, obtains height
Warm oil gas and semicoke；Enter the semicoke in the gasification chamber to contact to form eddy flow fluidized state with steam and oxygen, and
Combustion gasification reaction occurs, generates coal gas of high temperature；The high-temperature oil gas is passed through in the high-temperature dust removing device and is carried out at purification
Reason, to obtain high temperature purification oil gas；The high temperature purification oil gas is supplied to progress waste heat recycling in the waste heat boiler, with
Just pyrolysis oil and pyrolysis gas are obtained, and generates vapor.
Using the organic sludge pyrolysis gasification method of the utility model above-described embodiment, it is dried to a degree of organic dirt
Mud enters pyrolysis chamber by the drying organic sludge entrance at the top of organic sludge pyrolysis gasification furnace, in heat accumulation type radiant tube fire-bar
Part issues raw pyrolytic reaction, obtains pyrolysis oil gas and semicoke, and pyrolysis oil gas exports in the middle part of furnace body, and the semicoke of generation enters in furnace
The gasification chamber of body lower part contacted with oxygen and steam occur combustion gasification reaction, generate coal gas of high temperature, main component be CO and
H2, gasification reaction is strong exothermal reaction, semicoke counter current contacting of the coal gas of high temperature in uphill process with whereabouts, and gas-solid is changed
The volatile matter for not being pyrolyzed completion in semicoke is further extracted generation oil gas by heat.Finally organic sludge high-efficiency cleaning is turned
It turns to rich in H2、CO、CH4Unstripped gas, while the aromatic hydrocarbons oil product of by-product high added value.Since the imperfect combustion of semicoke is put
Heat provides heat for pyrolysis, and efficiency is higher.Therefore, the organic sludge pyrolysis gasification method of the utility model above-described embodiment is most
One step of the clean and effective conversion of organic sludge is realized eventually.
The organic sludge pyrolysis gasification system using preceding embodiment of the utility model specific embodiment is handled below
The method of organic sludge is described in detail.
Specific embodiment according to the present utility model, firstly, low order organic sludge is supplied by the organic sludge entrance
In to the organic sludge pyrolysis gasification furnace, it is pyrolyzed the low order organic sludge in the pyrolysis chamber, obtains high temperature
Oil gas and semicoke；Enter the semicoke in the gasification chamber to contact to form eddy flow fluidized state with steam and oxygen, concurrently
Raw combustion gasification reaction, generates coal gas of high temperature.
It is dried to a degree of organic sludge as a result, by the organic dirt of drying at 100 top of organic sludge pyrolysis gasification furnace
Mud entrance 112 enters pyrolysis chamber 110, issues raw pyrolytic reaction in 111 heating condition of heat accumulation type radiant tube, obtains pyrolysis oil gas
And semicoke, it is pyrolyzed high-temperature oil gas outlet 130 export of the oil gas in the middle part of furnace body, the semicoke of generation enters the gasification in lower portion of furnace body
The oxygen and steam being passed through in chamber 120 with oxygen inlet 121 and steam inlet 122, which contact, occurs combustion gasification reaction, generates
Coal gas of high temperature, main component are CO and H2, gasification reaction is strong exothermal reaction, coal gas of high temperature in uphill process with whereabouts half
Burnt counter current contacting, gas-solid exchange heat, and the volatile matter for not being pyrolyzed completion in semicoke is further extracted generation oil gas.Finally
It converts organic sludge high-efficiency cleaning to rich in H2、CO、CH4Unstripped gas, while the aromatic hydrocarbons oil product of by-product high added value, and
By 130 export of high-temperature oil gas outlet.Due to the imperfect combustion heat release of semicoke, heat is provided for pyrolysis, efficiency is higher.Therefore,
The single step conversion that organic sludge may be implemented using organic sludge pyrolysis gasification furnace 100, significantly improves efficiency and cleannes,
Reduce energy consumption and pollution.
Specific embodiment according to the present utility model, organic sludge needs are previously dried processing, are down to its moisture
15-20wt%, and then pyrolysis efficiency can be improved.
Specific embodiment according to the present utility model, dry organic sludge in pyrolysis chamber, in heat accumulation type radiant tube plus
Heat condition issues raw pyrolytic reaction, obtains pyrolysis oil gas and semicoke.Specifically, dry organic sludge is pyrolyzed in pyrolysis chamber
Temperature be 500-700 degrees Celsius.It is possible thereby to which organic sludge improves the hydrocarbon yield of system in optimal oil-producing temperature.
Specific embodiment according to the present utility model, the semicoke being pyrolyzed enter the gasification chamber and oxygen in lower portion of furnace body
Combustion gasification reaction occurs for gas and steam contact.Specifically, it is that 950-1100 is Celsius that the temperature of combustion gasification reaction, which occurs, for semicoke
Degree.It is possible thereby to which making semicoke fully be converted into main component is CO and H2Generation coal gas of high temperature.Simultaneously as lower part gas
The reaction temperature for changing the indoor generation of chamber is more preferable, can use the heat that coal-char combustion gasification generates and directly applies to semicoke, very
Into the organic sludge for being applied to not be pyrolyzed completely in pyrolysis chamber, and then further decrease energy consumption.
The high-temperature oil gas is passed through in high-temperature dust removing device 200 and carries out only by specific embodiment according to the present utility model
Change processing, to obtain high temperature purification oil gas.
Specific embodiment according to the present utility model, by the high-temperature oil gas that is discharged in organic sludge pyrolysis gasification furnace 100
Temperature can achieve 600-800 degrees Celsius.The high temperature purification oil gas obtained after high-temperature dust removing device 200 carries out purified treatment
Temperature is probably at 600-750 degrees Celsius.Thus its heat is recycled, such as can use waste heat boiler and is recycled, and
Obtain vapor.
For this purpose, specific embodiment according to the present utility model, finally, high temperature purification oil gas can be supplied to waste heat boiler
Waste heat recycling is carried out in 300, to obtain pyrolysis oil and pyrolysis gas, and generates vapor.And then it is net effectively to recycle high temperature
The heat of carburetion gas, avoids energy waste.
Specific embodiment according to the present utility model, carrying out waste heat recycling to high temperature purification oil gas can produce 200-300
Degree Celsius high-temperature steam.
The pyrolysis gasification method of specific embodiment according to the present utility model, above-described embodiment further comprises: by waste heat
The vapor that the heat of boiler recycling high-temperature oil gas generates is supplied by vapor import to gasification chamber, the burning for semicoke
Gasification reaction.It is possible thereby to which the steam generated using the heat of recycling high temperature purification oil gas is used for organic sludge in organic sludge
Combustion gasification in pyrolysis gasification furnace reacts, and then the heat recovery for the high-temperature oil gas that organic sludge generates is used for the combustion of itself
Gasification reaction is burnt, outside is eliminated and additionally supplies steam, reduce the processing energy consumption of organic sludge.
The pyrolysis gasification method of specific embodiment according to the present utility model, above-described embodiment further comprises: will be pyrolyzed
Gas is passed through pyrolysis air purifying apparatus 400 and carries out purified treatment, to obtain purified gas.It is possible thereby to further to the heat after cooling
It vents one's spleen and carries out purified treatment, and then obtain purified gas product.
The pyrolysis gasification method of specific embodiment according to the present utility model, above-described embodiment further comprises: will be pyrolyzed
Oil, which is passed through in oily-water seperating equipment 500, carries out water-oil separating, it is possible thereby to which the water in pyrolysis oil is separated, and then obtains pure
It is pyrolyzed oil product.
At least had according to the organic sludge pyrolysis gasification system and pyrolysis gasification method of the utility model above-described embodiment
One of following advantages:
(1) semicoke is directly applied to using the heat that coal-char combustion gasification generates, or even be applied to not complete in pyrolysis chamber
In the organic sludge being pyrolyzed entirely, and then further decrease energy consumption.
(2) can high efficient and flexible control pyrolysis, gasification degree, oil, gas, char yeild can adjust significantly, market adaptability
It is stronger.
(3) the high characteristic of middle organic sludge high volatile, activity is preferably utilized, utmostly turns middle organic sludge
Turn to petroleum and gas resources.
(4) consumption fuel quantity reduces, and investment operating cost reduces, and economy is more preferable.
Embodiment
By taking certain municipal sludge as an example, the municipal sludge main character after drying is as follows:
Table 1
| Project | Unit | Numerical value | Remarks |
| Quan Shui | % | 10 | As-received |
| Volatile matter | % | 35.7 | As-received |
| Ash content | % | 46.5 | As-received |
The drying organic sludge that moisture is 15% is added at the top of regenerative chamber organic sludge pyrolysis gasification furnace, heat accumulating type spoke
Pipe is penetrated using fuel gas with low heat value as unstripped gas, pyrolysis temperature is 600 DEG C.It is organic that heat accumulating type is fallen under middle low temperature solid-state organic matter
Pyrolyzing sludge gasification furnace lower part is contacted with steam with oxygen, combustion gasification reaction occurs, temperature is at 1000 DEG C.Solid organic combustion
It burns the low coal gas of high temperature rising of gasification generation and contacts progress gas-solid heat exchange with middle low temperature solid-state organic matter, further by solid organic
Volatile matter extracts generation oil gas.Heat accumulating type organic sludge pyrolysis gasification furnace gas outlet temperature is removed at 700 DEG C into high temperature
It will entrainment self raising flour dirt removal in dirt device.Low coal gas of high temperature temperature is exported at 650 DEG C from hot precipitator, is recycled into coal gas waste heat
Device generates 300 DEG C of steam as under gasifying agent feeding regenerative chamber organic sludge pyrolysis gasification furnace with heat exchange is carried out into soft water
Portion.The raw coke oven gas that exchanged heat enters raw coke oven gas purification system, generates grease and enters oil-water recovering device recycling tar as product.
Table 2
| Product | Yield % (coal base) |
| Lime-ash | 50.6 |
| Tar | 4.6 |
| Coal gas | 40.8 |
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
Combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (6)
1. a kind of organic sludge pyrolysis gasification system characterized by comprising
Organic sludge pyrolysis gasification furnace defines superposed pyrolysis chamber in the organic sludge pyrolysis gasification furnace and is located at
The gasification chamber of lower part, wherein
Multiple heat accumulation type radiant tubes are disposed in the pyrolysis chamber, there is dry organic sludge to enter at the top of the pyrolysis chamber
Mouthful；
The indoor lower part of gasification chamber is provided with oxygen coil pipe and steam pipe coil, has multiple oxygen logical on the oxygen coil pipe
Hole, has multiple steam passage holes on the steam pipe coil, and the indoor bottom of gasification chamber has lime-ash outlet；
There is high-temperature oil gas outlet on side wall between the pyrolysis chamber and the gasification chamber,
High-temperature dust removing device, the high-temperature dust removing device have high-temperature oil gas import and high temperature purification oil gas vent, the high temperature
Oil and gas import is connected with high-temperature oil gas outlet；
Waste heat boiler, the waste heat boiler have high temperature purification oil and gas import, pyrolysis gas outlet, pyrolysis oil export, water inlet and
Steam (vapor) outlet, the high temperature purification oil and gas import are connected with the high temperature purification oil gas vent.
2. organic sludge pyrolysis gasification system according to claim 1, which is characterized in that the steam (vapor) outlet and the steaming
Vapour coil pipe is connected.
3. organic sludge pyrolysis gasification system according to claim 1, which is characterized in that the pyrolysis chamber, which accounts for, described to be had
The 1/3-1/2 of whole height in machine pyrolyzing sludge gasification furnace.
4. organic sludge pyrolysis gasification system according to claim 1, which is characterized in that the steam pipe coil and the oxygen
Gas coil pipe is horizontally set on the indoor lower part of the gasification chamber.
5. organic sludge pyrolysis gasification system according to claim 4, which is characterized in that the steam pipe coil is located at described
The top of oxygen coil pipe.
6. organic sludge pyrolysis gasification system according to claim 1, which is characterized in that further comprise:
It is pyrolyzed air purifying apparatus, the pyrolysis air purifying apparatus is connected with the pyrolysis gas outlet.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987890A (en) * | 2017-12-28 | 2018-05-04 | 北京神雾电力科技有限公司 | Organic sludge pyrolysis gasification system and pyrolysis gasification method |
| CN110791324A (en) * | 2019-11-18 | 2020-02-14 | 湖南省林业科学院 | Microwave coupling liquid oxygen assisted pyrolysis gasification method for woody oil residues |
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2017
- 2017-12-28 CN CN201721893178.9U patent/CN208279576U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987890A (en) * | 2017-12-28 | 2018-05-04 | 北京神雾电力科技有限公司 | Organic sludge pyrolysis gasification system and pyrolysis gasification method |
| CN110791324A (en) * | 2019-11-18 | 2020-02-14 | 湖南省林业科学院 | Microwave coupling liquid oxygen assisted pyrolysis gasification method for woody oil residues |
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