CN207811688U - Biomass pyrogenation gasification system - Google Patents
Biomass pyrogenation gasification system Download PDFInfo
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- CN207811688U CN207811688U CN201721886020.9U CN201721886020U CN207811688U CN 207811688 U CN207811688 U CN 207811688U CN 201721886020 U CN201721886020 U CN 201721886020U CN 207811688 U CN207811688 U CN 207811688U
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Abstract
The utility model discloses biomass pyrogenation gasification systems, including：Biomass pyrogenation gasification stove, high-temperature dust removing device and waste heat boiler, biomass pyrogenation gasification stove include：Integrally formed pyrolysis furnace body gentleization furnace body up and down is disposed with multiple heat accumulation type radiant tubes in pyrolysis oven body, and top has biomass inlet；The lower part of gasification furnace body is formed with sandwich, the inner wall of sandwich is made of infundibulate discharging portion and tremie pipe, the bottom end of tremie pipe exports for solid material, has multiple through-holes on the side wall of infundibulate discharging portion, has oxygen inlet and steam inlet on the outer wall of sandwich；It is connected with high-temperature oil gas outlet with having high-temperature oil gas outlet, high-temperature dust removing device on the side wall that furnace body is connected that gasifies positioned at pyrolysis furnace body；Waste heat boiler is connected with the high temperature purification oil gas vent of high-temperature dust removing device.Petroleum and gas resources are converted biomass into the maximum extent using the system, and the clean and effective for being truly realized biomass utilizes.
Description
Technical field
The utility model belongs to Biomass Energy Utilization field, specifically, the utility model is related to pyrolysis gas of biomass
Change system.
Background technology
Biomass energy is the fourth-largest resource of the earth, is only second to coal, oil, natural gas, while being also that reserves are maximum can
The renewable sources of energy.Biomass has the characteristics that widely distributed, rich reserves, recyclability, low stain, is most potential fossil
One of energy substitution energy.
Currently, the recovery energy mode of biomass energy is mainly with fermenting and producing fuel, biogas, gasification, fast pyrogenation, charcoal
Turn to master.Wherein, the shortcomings of fermenting and producing fuel, biogas mainly apply herbaceous plant, and the technology production cycle is long, and yield is relatively low
Limit its development；Gasification production gas technology in terms of being applied to power generation, industrial gas supply, has certain more then since fuel gases calorific value is low
Limitation；The product that charring process obtains is mainly based on solid biologic charcoal, it is difficult to substitute fossil energy scale application；Soon
Speed heat solution refers to that biomass is rapidly heated to 550 DEG C or so, generates bio oil, charcoal under conditions of anaerobic or limit oxygen
With the process of pyrolysis gas.Pyrolytic technique is a kind of unique technology that biomass energy is converted into liquid fuel.However, through
It is extremely complex to cross the bio-oil components that pyrolytic technique obtains, pH value is relatively low, high oxygen content, thermal stability is poor, viscosity is big etc. lacks
Point is so that bio oil is difficult to directly utilize and store.In addition, the last handling process of bio oil is complicated, ineffective and cost compared with
Height makes it be difficult to industrial applications.
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 biomass pyrogenation gasification system with a novel purpose, biomass is carried out using the system to be pyrolyzed gentle neutralizing
It has determined the low problem of the thermal efficiency in pyrolytic process, has converted biomass into petroleum and gas resources to the maximum extent, be truly realized biology
The clean and effective of matter utilizes.
A face according to the present utility model, the utility model proposes a kind of biomass pyrogenation gasification systems, according to this
Embodiment, which includes：
Biomass pyrogenation gasification stove, the biomass pyrogenation gasification stove include：It is pyrolyzed furnace body gentleization furnace body, the pyrolysis
Furnace body and gasification furnace body are integrally formed up and down,
Wherein, multiple heat accumulation type radiant tubes are disposed in the pyrolysis oven body, the top of the pyrolysis furnace body has biology
Matter entrance；
The lower part of the gasification furnace body is formed with sandwich, and the inner wall of the sandwich is by infundibulate discharging portion and company
It is connected on the tremie pipe composition of the bottom end of the infundibulate discharging portion, the bottom end of the tremie pipe exports for solid material, the leakage
There are multiple through-holes on the side wall of bucket shape discharging portion, there is the oxygen inlet for being connected to the through-hole on the outer wall of the sandwich
And steam inlet；
There is high-temperature oil gas outlet on the side wall that the pyrolysis furnace body is connected with the gasification furnace body,
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 biomass pyrogenation gasification system of the utility model above-described embodiment, biomass be crushed to certain particle size by
Biomass pyrogenation gasification furnace roof portion enters in pyrolysis oven body, and raw pyrolytic reaction is issued in heat accumulation type radiant tube heating condition, pyrolysis
Oil gas exports in the middle part of furnace body, and the high-temperature semi-coke of generation contacts generation into the gasification furnace body in lower portion of furnace body with oxygen and steam
Combustion gasification reacts, and generates coal gas of high temperature, and main component is CO and H2, gasification reaction is strong exothermal reaction, and coal gas of high temperature is upper
Semicoke counter current contacting during rising with whereabouts, gas-solid exchange heat, and semicoke absorbs the heat of coal gas of high temperature, and temperature increases, into
And it is pyrolyzed and obtains CH4, pyrolysis oil.Finally convert rich in H coal high-efficiency cleaning to2、CO、CH4Unstripped gas, while by-product height is attached
Value added aromatic hydrocarbons oil product.Due to the imperfect combustion heat release of semicoke, heat, efficiency higher are provided for pyrolysis.Therefore, this practicality
The biomass pyrogenation gasification system of novel above-described embodiment finally realizes one step of the clean and effective conversion of coal.
In addition, can also be had according to the biomass pyrogenation gasification system of the utility model above-described embodiment following additional
Technical characteristic：
In the present invention, the multiple through-hole is in arranged in rows on the side wall of the infundibulate discharging portion, described
The longitudinal projection of multiple rows of through-hole is distributed in sector successively at a certain angle.
In the present invention, the angle of connected two exhausting holes is 30-45 °.
In the present invention, the aperture of the through-hole is 5-10mm.
In the present invention, the side wall of the infundibulate discharging portion and vertical direction angle are 35-60 °.
Description of the drawings
Fig. 1 is the structural schematic diagram according to the biomass pyrogenation gasification system of the utility model one embodiment.
Fig. 2 is the vertical view of infundibulate discharging portion in the biomass pyrogenation gasification system according to the utility model one embodiment
Figure.
Fig. 3 is the structural schematic diagram according to the biomass pyrogenation gasification system of the utility model another embodiment.
Specific implementation mode
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.
A face according to the present utility model, the utility model proposes a kind of biomass pyrogenation gasification systems, according to this
The embodiment of utility model, as shown in Figure 1, the solution gasification system includes：Biomass pyrogenation gasification stove 100, high-temperature dust removing device
200 and waste heat boiler 300.
Specific embodiment according to the present utility model, the biomass pyrogenation gasification stove 100 include：It is pyrolyzed 110 He of furnace body
Gasify furnace body 120, and the pyrolysis furnace body 110 and about 120 furnace body of gasification are integrally formed, wherein cloth in the pyrolysis furnace body 110
Multiple heat accumulation type radiant tubes 111 are equipped with, the top of the pyrolysis furnace body has biomass inlet 112；The gasification furnace body 120
Lower part is formed with sandwich, and the inner wall of the sandwich by infundibulate discharging portion 121 and is connected to the infundibulate discharging
The tremie pipe 122 of the bottom end in portion forms, and the bottom end of the tremie pipe 122 is that solid material exports 123, the infundibulate discharging portion
There are multiple through-hole (not shown) on 121 side wall, there is the oxygen for being connected to the through-hole on the outer wall 124 of the sandwich
Import 125 and steam inlet 126；There is height on the side wall that the pyrolysis furnace body 110 is connected with the gasification furnace body 120
Warm oil gas vent 130；High-temperature dust removing device 200 has high-temperature oil gas import 210 and high temperature purification oil gas vent 220, high temperature oil
Gas import 210 is connected with high-temperature oil gas outlet 130；Waste heat boiler 300 has high temperature purification oil and gas import 310, pyrolysis gas outlet
320, oil export 330, water inlet 340 and steam (vapor) outlet 350, high temperature purification oil and gas import 310 is pyrolyzed with high temperature purification oil gas to go out
Mouth 220 is connected.
Using the biomass pyrogenation gasification system of the utility model above-described embodiment, biomass be crushed to certain particle size by
Biomass pyrogenation gasification furnace roof portion enters in pyrolysis oven body, and raw pyrolytic reaction is issued in heat accumulation type radiant tube heating condition, pyrolysis
Oil gas exports in the middle part of furnace body, and the high-temperature semi-coke of generation contacts generation into the gasification furnace body in lower portion of furnace body with oxygen and steam
Combustion gasification reacts, and generates coal gas of high temperature, and main component is CO and H2, gasification reaction is strong exothermal reaction, and coal gas of high temperature is upper
Semicoke counter current contacting during rising with whereabouts, gas-solid exchange heat, and semicoke absorbs the heat of coal gas of high temperature, and temperature increases, into
And it is pyrolyzed and obtains CH4, pyrolysis oil.Finally convert rich in H coal high-efficiency cleaning to2、CO、CH4Unstripped gas, while by-product height is attached
Value added aromatic hydrocarbons oil product.Due to the imperfect combustion heat release of semicoke, heat, efficiency higher are provided for pyrolysis.Therefore, this practicality
The biomass pyrogenation gasification system of novel above-described embodiment finally realizes one step of the clean and effective conversion of coal.
The biomass pyrogenation gasification system of the utility model specific embodiment is described in detail below with reference to Fig. 1.
Biomass pyrogenation gasification stove
Specific embodiment according to the present utility model, the biomass pyrogenation gasification stove 100 include：It is pyrolyzed 110 He of furnace body
Gasify furnace body 120, and the pyrolysis furnace body 110 and about 120 furnace body of gasification are integrally formed, wherein cloth in the pyrolysis furnace body 110
Multiple heat accumulation type radiant tubes 111 are equipped with, the top of the pyrolysis furnace body has biomass inlet 112；The gasification furnace body 120
Lower part is formed with sandwich, and the inner wall of the sandwich by infundibulate discharging portion 121 and is connected to the infundibulate discharging
The tremie pipe 122 of the bottom end in portion forms, and the bottom end of the tremie pipe 122 is that solid material exports 123, the infundibulate discharging portion
There are multiple through-hole (not shown) on 121 side wall, there is the oxygen for being connected to the through-hole on the outer wall 124 of the sandwich
Import 125 and steam inlet 126；There is height on the side wall that the pyrolysis furnace body 110 is connected with the gasification furnace body 120
Warm oil gas vent 130.
Biomass is extremely pyrolyzed in furnace body 110 by the supply of biomass inlet 112 as a result, in the heating of heat accumulation type radiant tube 111
Raw pyrolytic reaction, high-temperature oil gas outlet 130 export of the pyrolysis oil gas in the middle part of furnace body are issued, the high-temperature semi-coke for being pyrolyzed generation enters
The oxygen and steam being passed through with multiple through-holes on the side wall by infundibulate discharging portion 121 in gasification furnace body 120 contact and occur
Combustion gasification reacts, and gasification reaction is strong exothermal reaction, and generation main component is CO and H2Coal gas of high temperature.Coal gas of high temperature is upper
Semicoke counter current contacting during rising with whereabouts, gas-solid exchange heat, and semicoke absorbs the heat of coal gas of high temperature, and temperature increases, into
And it is pyrolyzed and obtains CH4, pyrolysis oil by high-temperature oil gas outlet 130 discharge, combustion gasification reaction after solid material consolidating by bottom
State material outlet 123.Therefore, biomass is eventually converted to be rich in H after the processing of biomass pyrogenation gasification stove 1002、CO、
CH4Unstripped gas, while the aromatic hydrocarbons oil product of by-product high added value.The single step of biomass pyrogenation gasification stove 100 converts, significantly
Efficiency and cleannes are improved, energy consumption and pollution are reduced.
Specific embodiment according to the present utility model, in biomass pyrogenation gasification stove 100, superposed pyrolysis furnace body accounts for
The 1/3-1/2 of whole height in biomass pyrogenation gasification stove.Thus according to need by be pyrolyzed furnace body with gasify furnace body ratio into
Row, which divides, to be coordinated so that biomass can be pyrolyzed to realize the efficient single step conversion of biomass completely, improve gas yield.
Specific embodiment according to the present utility model, as shown in Fig. 2, the multiple through-holes formed on infundibulate discharging portion 121
127 are in successively at a certain angle in arranged in rows, the longitudinal projection of multiple rows of through-hole on the side wall of infundibulate discharging portion 121
Sector is distributed.From there through setting infundibulate discharging portion 121, and on its side wall formed arranged in rows through-hole, thus lead to
Enter oxygen and steam can significantly improve the distributing homogeneity of oxygen and steam, improve gas and the contact area of semicoke and contacts
Efficiency, and then improve combustion gasification reaction efficiency.
In addition, by the way that infundibulate discharging portion 121 is arranged, i.e. the discharge port of solid material gradually narrows, oxygen and vapor
It is gradually narrowed with the reaction compartment of hot semicoke, pressure increases, and then increases the residence time of semicoke, keeps its reaction more abundant.
Specific embodiment according to the present utility model, as shown in Fig. 2, the angle α for two exhausting holes that are connected is 30-45 °.
The aperture of specific embodiment according to the present utility model, the through-hole is 5-10mm.It is possible thereby to effectively prevent leading to
Hole is blocked, and effectively improves ventilatory effect.Specific example according to the present utility model is located at two neighboring logical in same row
The distance between hole is 10-15mm.It is light in conjunction with pile of biomass density, the low feature of critical fluidizing gas velocity, this cloth wind mode cloth wind
Uniformly, wind speed is flexibly adjustable, can further increase ventilation efficiency.
Specific embodiment according to the present utility model, as shown in Figure 1, the side wall of the infundibulate discharging portion 121 with it is vertical
Angular separation β is 35-60 °.Thus it can guarantee that cloth gas is uniformly distributed in Different layer of the compost high biological matter, ensures combustion gasification
Uniformity.
Specific embodiment according to the present utility model, since the burnup gasification reaction of semicoke is exothermic reaction, and then can be with
The heat generated using coal-char combustion gasification directly applies to semicoke, further carries out the volatile matter for not being pyrolyzed completion in semicoke
Extraction generates high-temperature oil gas, improves its conversion ratio and gas yield.Even applied to the life not being pyrolyzed completely in pyrolysis chamber
Substance, and then it can be further pyrolyzed efficiency, reduce energy consumption.
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 convenient for subsequently being carried out at separation to high-temperature oil gas
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 waste heat recovery is carried out 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, steam (vapor) outlet 350 and the biomass pyrogenation gasification stove of waste heat boiler 300
100 steam inlet 122 is connected.It is possible thereby to which the steam for utilizing the heat of recycling high temperature purification oil gas to generate is used for biomass
Combustion gasification reaction in biomass pyrogenation gasification stove 100, and then the heat recovery for the high-temperature oil gas that biomass is generated is used
It is reacted in the combustion gasification of itself, eliminates outside and additionally supply steam, reduce the processing energy consumption of biomass.
It is pyrolyzed air purifying apparatus
Specific embodiment according to the present utility model, as shown in figure 3, the biomass pyrogenation gasification system of above-described embodiment into
One step includes：It is pyrolyzed air purifying apparatus 400, pyrolysis air purifying apparatus 400 is connected with pyrolysis gas outlet 320.It is possible thereby into one
It walks and purified treatment is carried out to the pyrolysis gas after cooling, and then obtain purified gas product.
Specific embodiment according to the present utility model, as shown in figure 3, the biomass pyrogenation gasification system of above-described embodiment into
One step includes：Oily-water seperating equipment 500, oily-water seperating equipment 500 are connected with the pyrolysis oil export 330 of waste heat boiler 300, thus
Water in pyrolysis oil can be separated, and then obtain pure pyrolysis oil product.
In order to facilitate the biomass pyrogenation gasification system of the utility model above-described embodiment is understood, below to utilizing the system
The method of processing biomass is described.
Embodiment according to the present utility model, this method include：Biomass is supplied by the biomass inlet to described
In biomass pyrogenation gasification stove, so that the biomass is pyrolyzed in the pyrolysis furnace body, obtain high-temperature oil gas and semicoke；Make institute
It states semicoke to contact to form eddy flow fluidized state with steam and oxygen into the gasification furnace body is interior, and combustion gasification reaction occurs,
Generate coal gas of high temperature；The high-temperature oil gas is passed through in the high-temperature dust removing device and carries out purified treatment, it is net to obtain high temperature
Carburetion gas；The high temperature purification oil gas is supplied to waste heat recovery is carried out in the waste heat boiler, to obtain pyrolysis oil and heat
It vents one's spleen, and generates vapor.
Using the biomass pyrogenation gasification method of the utility model above-described embodiment, biomass be crushed to certain particle size by
Biomass pyrogenation gasification furnace roof portion enters in pyrolysis oven body, and raw pyrolytic reaction is issued in heat accumulation type radiant tube heating condition, pyrolysis
Oil gas exports in the middle part of furnace body, and the high-temperature semi-coke of generation contacts generation into the gasification furnace body in lower portion of furnace body with oxygen and steam
Combustion gasification reacts, and generates coal gas of high temperature, and main component is CO and H2, gasification reaction is strong exothermal reaction, and coal gas of high temperature is upper
Semicoke counter current contacting during rising with whereabouts, gas-solid exchange heat, and semicoke absorbs the heat of coal gas of high temperature, and temperature increases, into
And it is pyrolyzed and obtains CH4, pyrolysis oil.Finally convert rich in H coal high-efficiency cleaning to2、CO、CH4Unstripped gas, while by-product height is attached
Value added aromatic hydrocarbons oil product.Due to the imperfect combustion heat release of semicoke, heat, efficiency higher are provided for pyrolysis.Therefore, this practicality
The biomass pyrogenation gasification method of novel above-described embodiment finally realizes one step of the clean and effective conversion of coal.
Life is handled to the biomass pyrogenation gasification system using preceding embodiment of the utility model specific embodiment below
The method of substance is described in detail.
Specific embodiment according to the present utility model is first supplied biomass to the life by the biomass inlet
In material pyrolysis gasification furnace, so that the biomass is pyrolyzed in the pyrolysis furnace body, obtain high-temperature oil gas and semicoke；Make described
Semicoke, which enters in the gasification furnace body, to be contacted to form eddy flow fluidized state with steam and oxygen, and combustion gasification reaction, production occurs
Raw coal gas of high temperature.
Biomass is extremely pyrolyzed in furnace body 110 by the supply of biomass inlet 112 as a result, in the heating of heat accumulation type radiant tube 111
Raw pyrolytic reaction, high-temperature oil gas outlet 130 export of the pyrolysis oil gas in the middle part of furnace body are issued, the high-temperature semi-coke for being pyrolyzed generation enters
The oxygen and steam being passed through with multiple through-holes on the side wall by infundibulate discharging portion 121 in gasification furnace body 120 contact and occur
Combustion gasification reacts, and gasification reaction is strong exothermal reaction, and generation main component is CO and H2Coal gas of high temperature.Coal gas of high temperature is upper
Semicoke counter current contacting during rising with whereabouts, gas-solid exchange heat, and semicoke absorbs the heat of coal gas of high temperature, and temperature increases, into
And it is pyrolyzed and obtains CH4, pyrolysis oil by high-temperature oil gas outlet 130 discharge, combustion gasification reaction after solid material consolidating by bottom
State material outlet 123.Therefore, biomass is eventually converted to be rich in H after the processing of biomass pyrogenation gasification stove 1002、CO、
CH4Unstripped gas, while the aromatic hydrocarbons oil product of by-product high added value.The single step of biomass pyrogenation gasification stove 100 converts, significantly
Efficiency and cleannes are improved, energy consumption and pollution are reduced.
The grain size of specific embodiment according to the present utility model, pending biomass is not more than 8mm.It is possible thereby to improve
It is pyrolyzed efficiency, oil gas can be exported quickly in pyrolytic process, reduce second pyrolysis reaction, tar yield and quality are more preferably.In addition
Small particle semicoke combustion gasification section reaction rate faster, coal-char combustion gasification reaction it is efficient.
Specific embodiment according to the present utility model, biomass is in pyrolysis oven body, in heat accumulation type radiant tube heating condition
Raw pyrolytic reaction is issued, pyrolysis oil gas and semicoke are obtained.Specifically, the temperature that biomass is pyrolyzed in pyrolysis furnace body is 550-
600 degrees Celsius.In this temperature range, pyrolysis of coal tar yield reaches peak value, realizes high tar yield.
Specific embodiment according to the present utility model, the semicoke being pyrolyzed enter in the gasification furnace body and oxygen positioned at lower part
Combustion gasification reaction occurs for gas and steam contact.Specifically, the temperature that combustion gasification reaction occurs for semicoke is that 1000-1100 is Celsius
Degree.It is possible thereby to which so that it is CO and H that semicoke, which is fully converted into main component,2Generation coal gas of high temperature.Simultaneously as lower part gas
Change the reaction temperature higher of the generation in furnace body, the heat that coal-char combustion gasification generates can be utilized to directly apply to semicoke, very
Into the organic sludge for being applied to not be pyrolyzed completely in pyrolysis chamber, and then further decrease energy consumption.
Secondly 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 is handled, to obtain high temperature purification oil gas.And then convenient for subsequently carrying out separating treatment to high-temperature oil gas.
Specific embodiment according to the present utility model, by the temperature for the high-temperature oil gas being discharged in biomass pyrogenation gasification stove 100
Degree can reach 700-800 degrees Celsius.The high temperature purification oil gas temperature obtained after high-temperature dust removing device 200 carries out purified treatment
Degree is probably at 650-750 degrees Celsius.Thus its heat is recycled, such as can be recycled using waste heat boiler, and obtained
Obtain vapor.
For this purpose, specific embodiment according to the present utility model can finally supply high temperature purification oil gas to waste heat boiler
Waste heat recovery 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, 300-400 can be generated by carrying out waste heat recovery to high temperature purification oil gas
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 furnace body 120, for semicoke
Combustion gasification reacts.It is possible thereby to will utilize the steam that the heat of recycling high temperature purification oil gas generates for biomass in biomass
Combustion gasification reaction in pyrolysis gasification furnace, and then the heat recovery for the high-temperature oil gas that biomass is generated is used for the burning of itself
Gasification reaction eliminates outside and additionally supplies steam, reduces the processing energy consumption of biomass.
The pyrolysis gasification method of specific embodiment according to the present utility model, above-described embodiment further comprises：It will pyrolysis
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：It will pyrolysis
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.
Under at least being had according to the biomass pyrogenation gasification system and pyrolysis gasification method of the utility model above-described embodiment
One of row advantage：
(1) heat generated using coal-char combustion gasification is directly applied in pyrolysis, and more original energy consumption further decreases.
(2) can high efficient and flexible control pyrolysis, gasification degree, oil, gas, char yeild can adjust significantly, market adaptability
It is stronger.
(3) biomass high volatile, the high characteristic of activity is preferably utilized, utmostly convert biomass into oil,
Gas resource.
(4) consumption fuel quantity reduces, and investment operating cost reduces, and economy is more preferable.
(5) solid material drawing mechanism, using " funnel " the shape structure for being evenly equipped with micropore, the discharge port of solid material is gradually
It narrows, the reaction compartment of oxygen and vapor and hot semicoke gradually narrows, and pressure increases, and increases the residence time.
Embodiment
By taking sawdust as an example, the main character such as following table of sawdust：
Table 1
| Project | Unit | Numerical value | Remarks |
| Quan Shui | % | 5.5 | As-received |
| Volatile matter | % | 75 | As-received |
| Ash content | % | 2.4 | As-received |
It is by grain size<The sawdust of 8mm is added from heat accumulating type biomass pyrogenation gasification system head, and heat accumulation type radiant tube uses
For fuel gas with low heat value as unstripped gas, pyrolysis temperature is 550 DEG C.Middle low temperature semicoke falls under heat accumulating type biomass pyrogenation gasification stove
Portion contacts to form eddy flow fluidized state with steam with oxygen, combustion gasification reaction occurs, temperature is at 1000 DEG C.Coal-char combustion gasifies
It generates low coal gas of high temperature rising and contacts progress gas-solid heat exchange with middle low temperature semicoke, semicoke volatile matter is further extracted into generation
Oil gas.Heat accumulating type biomass pyrogenation gasification stove raw coke oven gas outlet temperature at 750 DEG C, into hot precipitator will carry secretly self raising flour dirt
Removal.Low high temperature raw gas temperature is exported from hot precipitator at 700 DEG C, into gas waste heat recovery device, and into soft water
It carries out heat exchange and generates 300 DEG C of steam as gasifying agent feeding heat accumulating type biomass pyrogenation gasification stove lower part.Through exchange heat raw coke oven gas into
Enter raw coke oven gas purification system, generates grease and enter oil-water recovering device recycling tar as product.
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 embodiments or example.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
In conjunction with 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 (5)
1. a kind of biomass pyrogenation gasification system, which is characterized in that including：
Biomass pyrogenation gasification stove, the biomass pyrogenation gasification stove include：It is pyrolyzed furnace body gentleization furnace body, the pyrolysis furnace body
It is integrally formed up and down with gasification furnace body,
Wherein, multiple heat accumulation type radiant tubes are disposed in the pyrolysis oven body, the top of the pyrolysis furnace body enters with biomass
Mouthful；
The lower part of the gasification furnace body is formed with sandwich, and the inner wall of the sandwich by infundibulate discharging portion and is connected to
The tremie pipe of the bottom end of the infundibulate discharging portion forms, and the bottom end of the tremie pipe exports for solid material, the infundibulate
There are multiple through-holes on the side wall of discharging portion, there is the oxygen inlet for being connected to the through-hole and steaming on the outer wall of the sandwich
Vapor inlet；
There is high-temperature oil gas outlet on the side wall that the pyrolysis furnace body is connected with the gasification furnace body,
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. biomass pyrogenation gasification system according to claim 1, which is characterized in that the multiple through-hole is in the funnel
It is in arranged in rows on the side wall of shape discharging portion, the longitudinal projection of multiple rows of through-hole is distributed in sector successively at a certain angle.
3. biomass pyrogenation gasification system according to claim 2, which is characterized in that be connected two exhausting holes angle be
30-45°。
4. biomass pyrogenation gasification system according to claim 3, which is characterized in that the aperture of the through-hole is 5-
10mm。
5. biomass pyrogenation gasification system according to claim 4, which is characterized in that the side wall of the infundibulate discharging portion
It it is 35-60 ° with vertical direction angle.
Priority Applications (1)
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