CN206970556U - The system for handling biomass - Google Patents
The system for handling biomass Download PDFInfo
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- CN206970556U CN206970556U CN201720461547.0U CN201720461547U CN206970556U CN 206970556 U CN206970556 U CN 206970556U CN 201720461547 U CN201720461547 U CN 201720461547U CN 206970556 U CN206970556 U CN 206970556U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The utility model discloses the system of processing biomass, including：Drying unit, curing range, profit condensing unit and gas cleaning plant.Wherein, drying unit includes one-level drying device, secondary drying device and blanking storehouse；Curing range has dried biomass entrance, solid product outlet and bakees product gas outlet, and dried biomass entrance is connected with dried biomass outlet, has the second conveyer belt and radiant tube in curing range, radiant tube has thermal source inlet and exhanst gas outlet；Profit condensing unit, which has, bakees gaseous product entrance, profit outlet and mixed gas outlet, bakees gaseous product entrance and is connected with bakeing product gas outlet；Gas cleaning plant has mixed gas entrance and combustible gas outlet, and mixed gas entrance is connected with mixed gas outlet.It can make the biomass after processing that there is higher energy density and lower O/C atomic ratios and H/C atomic ratios by using the system.
Description
Technical field
The utility model belongs to clean energy and utilizes field, and specifically, the utility model is related to processing biomass is
System.
Background technology
China has abundant biomass resource, but because its intrinsic energy density is low, moisture is higher, is not easy to store up
Deposit and the place of production be scattered waits shortcomings, cause biomass material transport, processing, store and as using energy source in terms of into
This is higher, and then limits the further development of biomass utilization technologies.At present, biomass often needs before industrialized utilization
Raw material is carried out dehydrating a series of pretreatments early stage such as deoxidation, most common preprocess method has dry, bakee etc..
The drying process of biomass is substantially to move on to the moisture in biomass in gas phase from material transfer, including naturally dry
Dry and artificial drying, spontaneously dry and moisture removal is gone by modes such as natural wind, sunshine irradiations, it is not necessary to special installation, into
This is low, but is easily restricted by natural climate condition, and drying efficiency is low, and the water content of biomass is difficult to control after drying, China
The natural drying moisture of stalk is typically 8% or so, the technique for not being suitable for having higher requirements to raw aqueous rate.And manually do
Dry is to take away the vapor escaped from wet stock as dried medium by using artificial heat such as flue gas or hot-air, so as to
Make the method for dry materials.Specially design, can accurately control by using drying machine and according to required material yield, moisture
Moisture processed, but traditional artificial drying is a kind of operating procedure engineering of high energy consumption.
It is that biomass is heated into 200-300 DEG C in oxygen free condition to volatilize to deviate from moisture and part lightweight that biomass, which bakees,
The process divided, compared to untreated biomass raw material, the solid product after baking has higher energy density.However,
Biomass, which bakees, to be needed to consume substantial amounts of outside resources, and it is still first in research to bakee handling process and apparatus field for biomass at present
Phase, therefore, research and development are stable, the biomass of clean and effective bakees pretreating process and equipment has boundless prospect.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
It is to propose the system for handling biomass with a new purpose.The system that biomass is handled by using the utility model,
It can make the biomass after processing that there is higher energy density and lower O/C atomic ratios and H/C atomic ratios, and then can have
Effect reduces exhaust gas volumn, steam vapour amount and the energy loss during burning.
According to one side of the present utility model, the utility model proposes a kind of system for handling biomass, including：
Drying unit, the drying unit include：
One-level drying device, one end of the one-level drying device have biomass inlet, and the relative other end has pre-
Dried biomass exports, the direction that biomass inlet described in the one-level drying device interior edge exports to the pre-dried biomass
On be provided with feeding screw, the one-level drying device has heat smoke import and cold flue gas outlet；
Secondary drying device, one end of the secondary drying device have pre-dried biomass entrance, the relative other end
Exported with dried biomass, first conveyer belt and heating member, the first conveyer belt are provided with the secondary drying device
It is extended on the direction that the pre-dried biomass import exports to the dried biomass, the secondary drying device tool
There is exhanst gas outlet；
Blanking storehouse, the blanking position in storehouse in the lower section of the one-level drying device and the top of the secondary drying device,
And the blanking storehouse connects the pre-dried biomass outlet and the pre-dried biomass entrance；
Curing range, the curing range have dried biomass entrance, solid product outlet and bakee gaseous product
Mouthful, the outlet of the dried biomass entrance and the dried biomass is connected, in the curing range with the second conveyer belt with
Radiant tube, the radiant tube have thermal source inlet and exhanst gas outlet；
Profit condensing unit, the profit condensing unit, which has, bakees gaseous product entrance, profit outlet and mixed gas
Outlet, the baking gaseous product entrance are connected with the baking product gas outlet；
Gas cleaning plant, the gas cleaning plant have mixed gas entrance and combustible gas outlet, the gaseous mixture
Body entrance is connected with the mixed gas outlet.
The system of the processing biomass of the utility model above-described embodiment, by setting drying unit, curing range, profit
Condensing unit and gas cleaning plant, not only realize and dry baking integration, the processing to biomass can also be efficiently accomplished,
Specifically, dewater treatment is dried to biomass in drying unit first, is included in the predry carried out in one-level drying device
Redrying that is dry and being carried out in secondary drying device；Then baking processing is carried out in curing range, obtains solid product
With bakee gaseous product, finally bakeing gaseous product, by profit condensing unit and gas cleaning plant to carry out profit successively cold
Combustible gas is obtained after solidifying and gas purification.By using the system of the utility model processing biomass, the life after processing can be made
Material has higher energy density and lower O/C atomic ratios and H/C atomic ratios, and then cigarette when can effectively reduce burning
Tolerance, steam vapour amount and energy loss.
In addition, skill additional as follows can also be had according to the system of the processing biomass of the utility model above-described embodiment
Art feature：
In the utility model, the blanking storehouse has material rotating plate, and the material rotating plate suitable for the driving material rotating plate with revolving
The drive device turned is connected, and the rotary shaft of the material rotating plate is horizontally extending.Thus, it is possible to further improve secondary dry
Dry effect.
In the utility model, the heating member set in the secondary drying device is microwave heating member.Thus, it is possible to enter
One step improves the efficiency and effect of redrying.
In the utility model, the combustible gas outlet is connected with electricity generation system, and the electricity generation system is done with the two level
Microwave heating member in dry device is connected.Thus, it is possible to combustible gas is effectively converted into electric energy and is used for secondary drying device
Microwave drying is carried out, and then significantly improves the utilization rate of energy.
In the utility model, combustible gas outlet is connected with the thermal source inlet of the radiant tube, so as to by combustible gas
Thermal source as the radiant tube.Thus, it is possible to further improve the utilization rate of energy.
In the utility model, the heat smoke import phase of the exhanst gas outlet of the radiant tube and the one-level drying device
Even.Thus, it is possible to which heat smoke caused by radiant tube to be effectively used for the thermal source of one-level drying device, energy is further improved
Utilization rate.
In the utility model, also include two the first temperature measuring equipments in the one-level drying device, described two first
Temperature measuring equipment is respectively adjacent to the biomass inlet and pre-dried biomass outlet is set.
In the utility model, also include two the second temperature measuring equipments in the secondary drying device, described two second
Temperature measuring equipment is respectively adjacent to the pre-dried biomass entrance and dried biomass outlet is set.
In the utility model, first temperature measuring equipment and second temperature measuring equipment are infrared radiation thermometer.
Brief description of the drawings
Fig. 1 is the system structure diagram according to the processing biomass of the utility model one embodiment.
Fig. 2 is the structural representation according to the system of the processing biomass of the utility model another embodiment.
Fig. 3 is the structural representation according to the system of the processing biomass of the utility model further embodiment.
Fig. 4 is the structural representation according to the drying unit of the system of the processing biomass of the utility model one embodiment
Figure.
Fig. 5 is the structural representation according to the radiant tube of the system of the processing biomass of the utility model one embodiment.
Fig. 6 is the method flow using the system processing biomass of the processing biomass of the utility model one embodiment
Figure.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
According to one side of the present utility model, the utility model proposes a kind of system for handling biomass, such as Fig. 1 institutes
Show, including：Drying unit 1000, curing range 400, profit condensing unit 500 and gas cleaning plant 600.Wherein, dry single
Member 1000 includes one-level drying device 100, secondary drying device 200 and blanking storehouse 300.
One end of one-level drying device 100 has biomass inlet 110, and there is the relative other end pre-dried biomass to go out
Mouth 120, the interior edge biomass inlet 110 of one-level drying device 100 to pre-dried biomass export and are provided with spiral on 120 direction
Feeder 130, one-level drying device 100 have heat smoke import 140 and cold flue gas outlet 150；The one of secondary drying device 200
End has a pre-dried biomass entrance 210, and the relative other end has a dried biomass outlet 220, in secondary drying device 200
First conveyer belt 230 and heating member 240 are provided with, first conveyer belt 230 is in pre-dried biomass import 210 to dried biomass
It is extended on the direction of outlet 220, secondary drying device 200 has exhanst gas outlet 250；Blanking storehouse 300 is located at one-level drying
The lower section of device 100 and the top of secondary drying device 200, and blanking storehouse 300 connects pre-dried biomass outlet 120 and predry
Dry biomass inlet 210；Curing range 400 has dried biomass entrance 410, solid product outlet 420 and bakees gas production
Thing outlet 430, dried biomass entrance 410 are connected with dried biomass outlet 220, have the second conveying in curing range 400
Band 440 and radiant tube 450, radiant tube have thermal source inlet 451 and exhanst gas outlet 452；Profit condensing unit 500, which has, bakees gas
Body product inlet 510, profit outlet 520 and mixed gas outlet 530, bakee gaseous product entrance 510 with bakeing gaseous product
Outlet 430 is connected；Gas cleaning plant 600 has mixed gas entrance 610 and combustible gas outlet 620, mixed gas entrance 610
It is connected with mixed gas outlet 530.
It is described in detail below with reference to the system of the processing biomass of Fig. 1-5 pairs of the utility model above-described embodiments.
Drying unit 1000
According to embodiment of the present utility model, as shown in figure 4, drying unit 1000 includes one-level drying device 100, two level
Drying device 200 and blanking storehouse 300.By setting one-level drying device 100 and two level in drying unit in the utility model
Drying device 200, dewater treatment effectively can be dried to biomass of the water content not less than 60 weight %, significantly reduce life
Moisture content after material drying process, solves the problems, such as standard biologic matter drying process drying effect difference.
One-level drying device 100
According to embodiment of the present utility model, one end of one-level drying device 100 has biomass inlet 110, relative
There is the other end pre-dried biomass to export 120, the interior edge biomass inlet 110 of one-level drying device 100 to pre-dried biomass
Feeding screw 130 is provided with the direction of outlet 120, there is one-level drying device 100 heat smoke import 140 and cold flue gas to go out
Mouth 150.Thus, it is possible to promote biomass using feeding screw 130 in one-level drying device 100 and contacted with heat smoke, lead to
Cross and promote biomass to may also reach up the effect for stirring and stirring biomass using feeding screw 130, it is possible thereby to so that raw
Material can fully contact with heat smoke, carry out significantly improving predrying effect.
According to specific embodiment of the utility model, the heat smoke import 140 on one-level drying device 100 is adjacent to predrying
Biomass outlet 120 is set, and cold flue gas outlet 150 is set adjacent to biomass inlet 110.By by heat smoke in the utility model
Import 140 is positioned adjacent to the position of pre-dried biomass outlet 120, and cold flue gas outlet 150 is positioned adjacent to biomass inlet
110 position, heat smoke can be made inversely directly to be contacted with biomass and exchanged heat, and then strengthen biomass and the biography of heat smoke
Heat, mass transport process.Cold flue gas after heat exchange is discharged from cold flue gas outlet 150 in the lump with the steam evaporated from biomass.
According to specific embodiment of the utility model, as shown in figure 4, one-level drying device 100 can further include
Temperature measuring equipment 160, temperature measuring equipment 160 can be infrared radiation thermometer, and infrared radiation thermometer is adjacent to biomass inlet 110 and predrying life
Material outlet 120 is set.Thus, it is possible to monitor the temperature that atmosphere is dried in one-level drying device 100 in real time, ensure that one-level is dried
Efficient drying temperature in device, improves predrying efficiency.
According to specific embodiment of the utility model, the temperature of predrying middle heat smoke is not particularly restricted, according to this
The implementation example of utility model, the temperature of heat smoke can be 120-150 degrees Celsius.Thus, it is possible to effectively improve pre-dried
Efficiency.
According to specific embodiment of the utility model, the charging rate and fabric thickness of biomass are not particularly restricted,
It can be adjusted according to being actually needed, specifically, can be controlled by adjusting the variable-frequency motor being connected with feeding screw 130
Make biological quality charging rate and fabric thickness.
Secondary drying device 200
According to embodiment of the present utility model, one end of secondary drying device 200 has pre-dried biomass entrance 210,
There is the relative other end dried biomass to export 220, and first conveyer belt 230 and heating are provided with secondary drying device 200
Part 240, first conveyer belt 230 are extended on the direction of pre-dried biomass import 210 to dried biomass outlet 220,
Secondary drying device 200 has exhanst gas outlet 250.Thus, it is possible to pre-dried biomass is carried out in secondary drying device 200
Redrying, obtain dried biomass.
According to specific embodiment of the utility model, the heating member 240 set in secondary drying device 200 can be microwave
Heating member.Inventor is had found, microwave drying is carried out to pre-dried biomass by using microwave heating member, can be to predrying life
Material is heated on the spot, and with homogeneous heating, the same outside and inside, fireballing effect, can be significantly improved to predrying biology
The drying efficiency and effect of matter, water content significantly reduces after making biomass drying, improves the efficiency and effect of redrying.
Inventor is found through experiments that biomass directly higher to water content is dried using microwave heating member, its
Drying and dehydrating effect is unsatisfactory, and to after predrying water content be down to 20~30% biomass and use microwave heating member
It is dried, its positive effect.Thus, the application is using one-level drying device 100 and the secondary drying with microwave heating member
Device 200 is combined to be dried twice to biomass, and its drying efficiency and dehydration rate are significantly improved.Specifically,
Biomass water content after redrying is not higher than 10 weight %, and biomass water content is significantly reduced.
According to specific embodiment of the utility model, the quantity of microwave heating member is not particularly restricted, can be according to reality
The border condition of production is selected.According to specific embodiment of the utility model, the microwave drying that is used in secondary drying device 200
Frequency can be 2450MHz ± 50Hz, microwave drying power adjustable.Microwave drying scale can be according to microwave output power, material
Conveyer belt size, material transferring speed and fabric thickness etc. are adjusted.Thus, pre-dried biomass can be defeated by first
Band 230 is sent to carry out microwave drying by microwave heating member 240 successively, caused vapor passes through exhanst gas outlet in drying process
250 discharges, ensure that the drying of biomass is more thoroughly and uniform.
According to specific embodiment of the utility model, as shown in figure 4, secondary drying device 200 can further include
Temperature measuring equipment 260, temperature measuring equipment 260 can be infrared radiation thermometer, and infrared radiation thermometer is adjacent to pre-dried biomass entrance 210 and does
Dry biomass outlet 220 is set.Thus, it is possible to monitor the temperature that atmosphere is dried in secondary drying device 200 in real time, ensure two level
Efficient drying temperature in drying device, improve redrying efficiency.
Blanking storehouse 300
According to embodiment of the present utility model, blanking storehouse 300 is located at lower section and the secondary drying dress of one-level drying device 100
200 top is put, and blanking storehouse 300 connects pre-dried biomass outlet 120 and pre-dried biomass entrance 210.Thus, by one
Level drying device 100 discharge pre-dried biomass can under self gravitation under drop down onto in secondary drying device 200, so as to save
Mechanical conveying has been gone, has saved energy consumption.
According to specific embodiment of the utility model, blanking storehouse 300 can have material rotating plate 310, and material rotating plate 310 is with being suitable to
The drive device for driving the material rotating plate 310 to rotate is connected, and the rotary shaft of material rotating plate 310 is horizontally extending.According to this
The specific example of utility model, material rotating plate 310 are constantly overturn under the drive of drive device, are discharged by one-level drying device 100
Pre-dried biomass under self gravitation under drop down onto on material rotating plate 310 in blanking storehouse 300, and turning over by material rotating plate 310
Continue to fall into secondary drying device 200 after dynamic.Thus, can be to pre- by setting material rotating plate 310 in blanking storehouse 300
Dried pre-dried biomass carries out stirring stirring, and then not thorough to local desiccation in pre-drying process, and moisture is high
Material area mixed with other areas, material is mixed again, so improve redrying effect.
Thus, in drying unit, be combined by using secondary drying device 200 and one-level drying device 100, i.e., it is raw
It is predrying then (hot to second level drying device that raw material of substance is first into one-level drying device (thermal source is heat smoke) progress
It can be microwave that source, which is) redrying is carried out, the drying of biomass can be made more thoroughly and uniformly, and by predrying and two
Biomass water content after secondary drying process is not higher than 10 weight %, and biomass water content significantly reduces.
Curing range 400
According to embodiment of the present utility model, there is curing range 400 dried biomass entrance 410, solid product to export
420 are connected with baking product gas outlet 430, dried biomass entrance 410 with dried biomass outlet 220, curing range 400
Inside there is the second conveyer belt 440 and radiant tube 450, as shown in figure 5, radiant tube 450 has thermal source inlet 451 and exhanst gas outlet
452.Thus, it is possible to which dried biomass carries out baking processing in curing range 400, obtain solid product and bakee gas production
Thing.
According to embodiment of the present utility model, the baking carried out in curing range 400 is by drying under anaerobic environment
Biomass is heated to deviate from the process of moisture and part lightweight volatile matter.Dried biomass enters curing range 400 and dried
Roasting, the 30% of the quality of biomass volatilizees in the form of a vapor after baking, including moisture, some oxygen-containing hydrocarbons and some other gas
Body, these gaseous volatilizations point only take away in biomass 10% or so energy, therefore the solid product after baking is than unprocessed
Biomass have higher energy density.In addition, the solid product after bakeing has lower O/C atomic ratios and H/C atomic ratios,
So as to effectively reduce exhaust gas volumn, steam vapour amount and energy loss during solid product burning.And bakee gaseous product and enter
One step condenses, after gas purification by profit, can be as radiant tube fuel and the fuel of electricity generation system.
According to specific embodiment of the utility model, baking is carried out under anoxybiotic atmosphere, can be with before being bakeed
Utilize N2Gas cements out the air in curing range 400, ensures that it is anoxybiotic to bakee environment, and gas is calcined in curing range 400
The pressure of atmosphere is -50Pa-100Pa, thus, it is possible to further improve the efficiency and effect for bakeing processing.
According to embodiment of the present utility model, dried biomass is bakeed using radiant tube 450, radiant tube 450 can
With the top being arranged in curing range 400, combustible gas burns in radiant tube 400, and caused heat is in the form of radiation energy
Pass to the dried biomass in curing range 400.Dried biomass is heated to 200-350 DEG C under anaerobic environment, processing
Time can be 10-30 minutes, thus, it is possible to make dried biomass abjection moisture and part lightweight volatile matter, and then be had
It is moisture, CO to have higher energy density solid product and main component2、CO、CH4、H2And the baking gas production of some oxygen-containing hydrocarbons
Thing.In addition, the form heated using radiant tube to dried biomass, energy utilization efficiency can improve 10-20%.
According to specific embodiment of the utility model, combustible gas burning and caused flue gas fill with bakeing in radiant tube 450
Put the dried biomass in 400 and bakee product isolation.Carried out thus, it is possible to ensure to bakee under anoxic condition.Further, may be used
Accurately to control the temperature of radiant tube 450 by the dosage and excess air coefficient that adjust combustible gas, and then effectively adjust and bakee
Stoving temperature in device 400 is 200-350 DEG C.According to specific embodiment of the utility model, the temperature control of radiant tube 450 is adjusted
Scope is 200-500 DEG C.
According to specific embodiment of the utility model, the exhanst gas outlet 452 of radiant tube 450 can be with one-level drying device
100 heat smoke import 140 is connected.It is hot caused by combustible gas burning in radiant tube 450 according to specific example of the present utility model
Flue gas forms mixed flue gas (120-150 DEG C) and delivers to one-level drying device 100 to biomass progress after being mixed with cold air
It is predrying, in addition, the ratio by adjusting heat smoke and cold air, it can further control the temperature of mixed flue gas.Thus, may be used
So that heat smoke caused by radiant tube to be effectively used for the thermal source of one-level drying device, the utilization rate of energy is further improved.
According to specific embodiment of the utility model, can by adjust rotating speed and the material distributing machine of the second conveyer belt 440 come
Realize and bakee being adjusted flexibly for treating capacity, fabric thickness and baking time.According to specific embodiment of the utility model, after discharging
200-300 DEG C of solid product can be cooled to 20-30 DEG C of normal temperature by the way of indirect water-cooling.
Profit condensing unit 500
According to embodiment of the present utility model, there is profit condensing unit 500 baking gaseous product entrance 510, profit to go out
Mouth 520 and mixed gas outlet 530, bakee gaseous product entrance 510 and be connected with bakeing product gas outlet 430.Thus, it is possible to
Gas-liquid separation is carried out to bakeing gaseous product in profit condensing unit 500, obtains oil water mixture and mixed gas.
According to embodiment of the present utility model, the baking gaseous product obtained in profit condensing unit 500 to baking enters
Row gas-liquid separation can isolate most product liquid, and product liquid caused by baking is mainly water, also containing it is a small amount of,
The oxygenated organic molecule material such as acetic acid, methanol.Thus, it is possible to effectively carry out initial gross separation to bakeing gaseous product, mixed
Gas.
Gas cleaning plant 600
According to embodiment of the present utility model, there is gas cleaning plant 600 mixed gas entrance 610 and combustible gas to export
620, mixed gas entrance 610 is connected with mixed gas outlet 530.Thus, one can be entered by using gas cleaning plant 600
Step purifies to mixed gas, obtains combustible gas.
According to specific embodiment of the utility model, mixed gas product continues to remove in gas cleaning plant 600
The combustible gas of cleaning is obtained after the clean units such as dirt, detar, combustible gas composition mainly has CO caused by baking2、CO、CH4、H2
And some oxygen-containing hydrocarbons etc..
According to specific embodiment of the utility model, combustible gas outlet 620 can be connected with electricity generation system, electricity generation system with
Microwave heating member 240 in secondary drying device 200 is connected.Thus, it is possible to combustible gas is effectively converted into electric energy and is used for
Secondary drying device 200 carries out microwave drying, and then significantly improves the utilization rate of energy.
According to specific embodiment of the utility model, combustible gas outlet 620 is connected with the thermal source inlet 451 of radiant tube 450,
So as to the thermal source using the combustible gas as the radiant tube 450.Thus, it is possible to further improve the utilization rate of energy.
According to the system of the processing processing biomass of the utility model above-described embodiment, biomass material can be entered first
Enter into one-level drying device 100 and carry out heat smoke drying, then enter secondary drying device 200 after the refining of material rotating plate 310
Middle carry out microwave drying, then the dried biomass after drying and dehydrating is delivered to progress hyperthermia radiation baking in curing range 400,
And obtain solid product and bakee gaseous product, it is net through profit condensing unit 500 and gas cleaning plant 600 to bakee gaseous product
Combustible gas is obtained after change, combustible gas is divided into two-way, and the radiant tube 450 delivered to all the way in baking system 400 is burnt, there is provided raw
Material bakees required energy, and another way is delivered to electricity generation system and generated electricity, and carries out microwave for secondary drying device 200 and do
It is dry.High-temperature flue gas caused by radiant tube 450 delivers to one-level drying device 100 after being mixed with cold wind, realize heat smoke and biomass
Direct contact heat transfer.
Thus, the system for biomass being handled by using the utility model not only realizes dry baking integration, may be used also
To efficiently accomplish the processing to biomass, and handling process process is simple, and adaptability to raw material is strong, suitable for different water cut, no
Biolobic material raw material of the same race dries baking, and redrying technique can accurately control the degree of drying of biomass, and dries
Effect is good；In addition, being heated in curing range using radiant tube, the isolation of radiant tube fuel and flue gas and baking chamber is realized；
Further, bakee gaseous product can be respectively used in curing range after profit condensation and gas purification the thermal source of radiant tube and
Electric energy caused by combustion power generation, wherein combustion power generation is used for secondary drying device and redrying is carried out to biomass, and one-level is dried
Heat smoke needed for device can come from heat smoke caused by radiant tube, and therefore, energy caused by whole system can be carried out
Further to recycle, required extraneous energy consumption substantially reduces, and has reached higher energy-saving horizontal.
In order to facilitate the system for the processing biomass for understanding the utility model above-described embodiment, below to utilizing above-mentioned implementation
The method of the system processing biomass of the processing biomass of example is described.
According to embodiment of the present utility model, this method includes：Biomass is delivered in one-level drying device, utilizes spiral shell
Precession glassware promotes biomass and contacted with heat smoke, predrying to be carried out to biomass, obtains pre-dried biomass；Make pre-
Dried biomass free-falling and enters in secondary drying device through blanking storehouse under gravity, and in secondary drying device
Interior carry out redrying, to obtain dried biomass；Dried biomass is delivered in curing range under oxygen deficient atmospheres to enter
Row bakees, to obtain solid product and to bakee gaseous product；Gaseous product will be bakeed and be passed through in profit condensing unit and enter promoting the circulation of qi
Liquid separates, to obtain oil water mixture and mixed gas；Mixed gas is passed through in gas cleaning plant and purified, so as to
Obtain combustible gas.
The side of biomass is handled the system of the processing biomass using the utility model above-described embodiment below with reference to Fig. 6
Method is described in detail.
S100：It is predrying
According to embodiment of the present utility model, biomass is delivered in one-level drying device, pushed away using feeding screw
Dynamic biomass simultaneously contacts with heat smoke, predrying to be carried out to biomass, obtains pre-dried biomass.
According to embodiment of the present utility model, the water content of biomass material is not less than 60 weight %.Thus, it is possible to effectively
It is dried for biomass of the water content not less than 60 weight %.
According to specific embodiment of the utility model, the temperature of predrying middle heat smoke is not particularly restricted, according to this
The implementation example of utility model, the temperature of heat smoke can be 120-150 degrees Celsius.Thus, it is possible to effectively improve pre-dried
Efficiency.
According to specific embodiment of the utility model, heat smoke is changed with biomass using the reverse directly way of contact
Heat, it is possible thereby to effectively strengthen biomass and heat transfer, the mass transport process of heat smoke, and then improve to the pre-dried effect of biomass
Rate.
According to specific embodiment of the utility model, the charging rate and fabric thickness of biomass are not particularly restricted,
It can be adjusted according to being actually needed, specifically, can be controlled by adjusting the variable-frequency motor being connected with feeding screw
Biological quality charging rate and fabric thickness.
According to specific embodiment of the utility model, pre-dried biomass can be arranged on when by blanking storehouse
The stirring of material rotating plate in feed bin.After biomass material completion is predrying, under self gravitation in free-falling to blanking storehouse, turn over
Flitch is constantly overturn under the drive of drive device, stir it is predrying after pre-dried biomass, water not thorough to local desiccation
Point high material area of content is mixed with other areas, material is uniformly mixed once again, is ensured that the drying of biomass is more thorough
With effect that is uniform, and then can further improving follow-up redrying.
S200：Redrying
According to embodiment of the present utility model, pre-dried biomass is set free-falling and to pass through blanking storehouse under gravity
Into in secondary drying device, and redrying is carried out in secondary drying device, to obtain dried biomass.
According to specific embodiment of the utility model, redrying can use microwave drying.Inventor has found, by adopting
Pre-dried biomass can be heated on the spot with microwave drying, and with homogeneous heating, the same outside and inside, fireballing effect
Fruit, drying efficiency and effect to pre-dried biomass can be significantly improved, water content significantly reduces after making biomass drying, improves
The efficiency and effect of redrying.
According to specific embodiment of the utility model, when carrying out redrying, the quantity of microwave heating member is not by special
Limitation, can be selected according to practical condition.According to specific embodiment of the utility model, when carrying out redrying,
Microwave drying frequency can be 2450MHz ± 50Hz, microwave drying power adjustable.Microwave drying scale can be according to microwave output work
Rate, material conveyor belt size, material transferring speed etc. are adjusted.Thus, pre-dried biomass can pass through first conveyer belt
Microwave drying is carried out by microwave heating member successively, caused vapor is discharged by exhanst gas outlet in drying process, ensures life
The drying of material is more thoroughly and uniform.
By using redrying and it is predrying be combined, and using two-stage dry between increase material rotating plate to predrying life
Material is stirred, and can make the drying of biomass more thoroughly and uniformly, and by the processing of predrying and redrying after
Dried biomass water content is significantly reduced not higher than 10 weight %, water content from being reduced to not less than 60 weight %.
S300：Bakee
According to embodiment of the present utility model, dried biomass is delivered in curing range and dried under oxygen deficient atmospheres
Roasting, to obtain solid product and to bakee gaseous product.
According to embodiment of the present utility model, the baking carried out in curing range is that biology will be dried under anaerobic environment
Matter is heated to deviate from the process of moisture and part lightweight volatile matter.Dried biomass enters curing range and bakeed, and bakees
The 30% of the quality of biomass volatilizees in the form of a vapor afterwards, including moisture, some oxygen-containing hydrocarbons and some other gases, these gas
Body volatile matter only takes away in biomass 10% or so energy, therefore the solid product after baking has than undressed biomass
Higher energy density.In addition, the solid product after bakeing has lower O/C atomic ratios and H/C atomic ratios, so as to have
Effect reduces exhaust gas volumn, steam vapour amount and the energy loss during solid product burning.And gaseous product is bakeed further across oil
, can be as radiant tube fuel and the fuel of electricity generation system after water condensation, gas purification.
According to specific embodiment of the utility model, baking is carried out under anoxybiotic atmosphere, can be with before being bakeed
Utilize N2Gas cements out the air in curing range 400, ensures that it is anoxybiotic to bakee environment, the calcination atmosphere in curing range
Pressure be -50Pa-100Pa, thus, it is possible to further improve bakee processing efficiency and effect.
According to embodiment of the present utility model, dried biomass is bakeed using radiant tube, combustible gas is in radiant tube
Burnt in 400, caused heat passes to the dried biomass in curing range in the form of radiation energy.Dried biomass is lacking
200-350 DEG C is heated under oxygen environment, processing time can be 10-30 minutes, thus, it is possible to make dried biomass deviate from water
Point and part lightweight volatile matter, and then obtain have higher energy density solid product and main component be moisture, CO2、CO、
CH4、H2And the baking gaseous product of some oxygen-containing hydrocarbons.
According to specific embodiment of the utility model, combustible gas burning and caused flue gas and dried biomass in radiant tube
Bakee product isolation.Carried out thus, it is possible to ensure to bakee under anoxic condition.It is possible to further by adjusting combustible gas
Dosage and excess air coefficient accurately control the temperature of radiant tube, and then it is 200-350 DEG C effectively to adjust stoving temperature.
According to specific embodiment of the utility model, the caused heat smoke of radiant tube can be used as pre-dried during baking
Thermal source.According to specific example of the present utility model, heat smoke caused by combustible gas burning can mix with cold air in radiant tube
Afterwards formed mixed flue gas (120-150 DEG C) and to biomass carry out it is predrying, in addition, the ratio by adjusting heat smoke and cold air
Example, it can further control the temperature of mixed flue gas.Thus, it is possible to effectively heat smoke caused by radiant tube is used for predrying
Thermal source, further improve energy utilization rate.
According to specific embodiment of the utility model, can be realized by adjusting rotating speed and the material distributing machine of the second conveyer belt
Bakee treating capacity, fabric thickness and bakee being adjusted flexibly for time.Can be with according to specific embodiment of the utility model, after discharging
200-300 DEG C of solid product is cooled to 20-30 DEG C of normal temperature by the way of indirect water-cooling.
S400：Profit condenses
According to embodiment of the present utility model, baking gaseous product is passed through in profit condensing unit and carries out gas-liquid separation,
To obtain oil water mixture and mixed gas.
According to embodiment of the present utility model, the baking gaseous product that can be obtained in profit condensing unit to baking enters
Row gas-liquid separation can isolate most product liquid, and product liquid caused by baking is mainly water, also containing it is a small amount of,
The oxygenated organic molecule material such as acetic acid, methanol.Thus, it is possible to effectively carry out initial gross separation to bakeing gaseous product, mixed
Gas.
S500：Gas purification
According to embodiment of the present utility model, mixed gas is passed through in gas cleaning plant and purified, to obtain
Combustible gas.
According to specific embodiment of the utility model, mixed gas product can be continued in gas cleaning plant 600
The combustible gas of cleaning is obtained after carrying out the clean units such as dedusting, detar, combustible gas composition mainly has CO caused by baking2、CO、
CH4、H2And some oxygen-containing hydrocarbons etc..
According to specific embodiment of the utility model, the combustible gas obtained after gas purification can be used for electricity generation system progress
Generate electricity, thus, it is possible to which secondary drying device microwave heats when combustible gas effectively being converted into electric energy and being used for redrying, enter
And significantly improve the utilization rate of energy.
According to specific embodiment of the utility model, the combustible gas obtained after gas purification can be used as radiant tube when bakeing
Thermal source.Thus, it is possible to further improve the utilization rate of energy.
Thus, the method for biomass being handled by using the utility model can not only realize dry baking integration, also
The processing to biomass can be efficiently accomplished, and handling process process is simple, adaptability to raw material is strong, suitable for different water cut,
Variety classes biomass material dries baking, and redrying technique can accurately control the degree of drying of biomass, and dry
Dry effect is good；In addition, heated in curing range using radiant tube, realize radiant tube fuel and flue gas and baking chamber every
Absolutely；Further, the heat of radiant tube in curing range can be respectively used to after profit condensation and gas purification by bakeing gaseous product
Electric energy caused by source and combustion power generation, wherein combustion power generation is used for secondary drying device and carries out redrying, predry to biomass
Dry required heat smoke can come from heat smoke caused by radiant tube, and therefore, energy caused by whole system can enter to advance
The recycling of one step, required extraneous energy consumption substantially reduce, and have reached higher energy-saving horizontal.
As described above, at least had according to the system and method for the processing biomass of embodiment of the present utility model following excellent
One of point：
(1) handling process process is simple, and adaptability to raw material is strong, suitable for different water cut, variety classes biomass material
Dry baking.
(2) realize to dry and bakee integration, drying and baking processing to biomass can be efficiently accomplished.
(3) dry baking processing after obtained solid product relative to biomass material have higher energy density and
Lower O/C atomic ratios and H/C atomic ratios, and then exhaust gas volumn, steam vapour amount and energy loss when can effectively reduce burning.
(4) using " heat smoke predrying+stirring+microwave redrying " technique, degree of drying can be accurately controlled, is ensured
Drying effect.There is uniform distribution of temperature field feature simultaneously, the shortcomings of avoiding amount of localized heat inadequate, realize that stoving temperature is precisely controlled
System.
(5) biomass baking system is heated using gas fired radiant tubes, and energy is delivered in material in the form of radiation energy, spoke
Penetrate that pipe temperature can realize accurate control and energy utilization efficiency improves 10-20%.
(6) radiant tube that the combustible gas obtained after purified treatment is delivered in curing range all the way is burnt, and is carried to bakee
Energy supply amount, another way are delivered to electricity generation system and generated electricity, and are dried for secondary microwave and provide electric energy, while the radiation in curing range
Flue gas caused by pipe can be used as pre-dried thermal source, realize UTILIZATION OF VESIDUAL HEAT IN.Whole system realizes energy recycling, carries significantly
High capacity usage ratio.
Embodiment 1
The raw agaric base of certain bag produces largely discarded bacterium bag every year, and the main component in bacterium bag is wood chip, it is a small amount of to also have
The plaster of paris, baking is dried to above-mentioned wood chip biomass material using the system.Table 1 is the industry of wood chip biomass material
Analysis and elementary analysis.The moisture content of wood chip bacterium bag As-received is 55-65%, average moisture content more than 60%.Because wood chip is former
The particle size range of material accounts for more than 80% between 1-5mm, without crushing, can enter directly into biomass and dry baking system.
Industry, elementary analysis and the calorific value of the wood chip biomass material of table 1
(1) wood chip biomass material drying unit
Wood chip biomass material enters one-level drying system, heat smoke (temperature 120-150 by screw feeding device
DEG C) from the import entrance positioned at screw feeding device bottom, inversely directly contact and exchanged heat with material, heat exchange amount is Q=S α
(Ta-T), S is flue gas and material contact area, and Q is heat exchange amount in the unit time, and α is convection transfer rate, and Ta is flue gas temperature
Degree, T is material surface temperature.It can be changed by adjusting the parameters such as flue-gas temperature Ta (120-150 DEG C), spiral charging motor frequency
Become the heat exchange amount Q and rate of drying of flue gas and rubbish.The steam evaporated in cold flue gas mixed material after heat exchange is in the lump from spiral shell
The exhaust outlet discharge of precession material bottom of device, the one-level of biomass, which is dried, to be completed.Temperature in one-level drying system passes through infrared
Temperature measurer monitoring in real time ensures that one-level dries indoor environment temperature and temperature of charge is less than 150 DEG C.One-level drying time can adjust
Scope is 10-30min.
After wood chip biomass material completes one-level drying, freely dropped down onto under material self gravitation in the road of vertical blanking storehouse,
Vertical blanking storehouse road side wall is provided with turn-down rig, and material rotating plate is constantly overturn under motor driven, completes to material disturbance, turns over
Turn.The rotating speed of material rotating plate is between 50-150r/min.After material rotating plate, local desiccation is impermeable, halfway material area realizes
Re-mix, so as to be advantageous to improve next step secondary microwave drying effect.
Wood chip biomass material after material rotating plate stirs is dropped down onto under self gravitation effect in secondary drying system, two level
Dry using micro-wave drying method.Frequency 2450MHz ± 50Hz of microwave drying.The drying power adjustable 10-50kw of microwave,
Material bed thickness is 10-30mm, and the secondary drying time is 10-30min, and it is thick can to adjust microwave power, cloth according to actual conditions
Degree, conveyer belt rotating speed (drying time) parameter realize the optimum condition that drying effect is optimal, energy consumption is minimum, after secondary drying
The moisture content of wood chip biomass material can be reduced to less than 10% by the 60% of As-received.The wood chip biology that drying process is completed
Matter raw material sends out drying system by discharging opening, and wood chip biomass material is delivered to biomass baking system through feeding belt again and carried out
Biomass bakees.
(2) wood chip biomass material curing range
Biomass baking system is delivered to through feeding belt by dry wood chip biomass material (moisture content is less than 10%),
Before baking starts, the control bakeed in tower need to be passed through N2Gas cements out, and ensures that it is anoxybiotic to bakee environment, bakees indoor oxygen and contains
Amount is less than 5%.Tried one's best by adjusting radiant tube combustion gas and air to adjust the temperature bakeed in tower, baking process temperature control exists
200-350 DEG C, the operating pressure bakeed in tower is maintained between -50Pa-100Pa, and the baking time is 10-30min.Wood chip biology
Gaseous product after matter raw material bakees is discharged by bakeing top of tower venthole, and volatile matter caused by baking condenses through profit first
Device, most product liquid is isolated, product liquid caused by baking is mainly water, also containing a small amount of acid, ketone, aldehyde etc.
Product liquid.Biomass bakees after gaseous product continues the clean units such as dedusting, detar and obtains the combustible gas of cleaning, only
Flammable qi leel two-way after change, delivers to radiant tube and is burnt all the way, provides energy for baking chamber, another way delivers to combustion gas internal combustion
Unit is generated electricity, and the electric power of production is used for the secondary microwave drying system for supplying drying system.Table 2 is wood chip biomass material
Products collection efficiency after baking, table 3 for bakee after wood chip biomass material industry, elementary analysis and calorific value, the wood chip biomass of table 4
Raw material bakees product gas composition.
Products collection efficiency after the baking of the wood chip biomass material of table 2
Industry, elementary analysis and the calorific value of wood chip biomass material after table 3 bakees
The wood chip biomass material of table 4 bakees product gas composition
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 the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff can be carried out the different embodiments or example and the feature of different embodiments or example described in this specification
With reference to and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (9)
- A kind of 1. system for handling biomass, it is characterised in that including：Drying unit, the drying unit include：One-level drying device, one end of the one-level drying device have biomass inlet, and the relative other end has predrying Biomass outlet, set on the direction that biomass inlet described in the one-level drying device interior edge exports to the pre-dried biomass Feeding screw is equipped with, the one-level drying device has heat smoke import and cold flue gas outlet；Secondary drying device, one end of the secondary drying device have pre-dried biomass entrance, and the relative other end has Dried biomass exports, and is provided with first conveyer belt and heating member in the secondary drying device, the first conveyer belt is in institute State and be extended on the direction that pre-dried biomass import exports to the dried biomass, the secondary drying device has cigarette Gas exports；Blanking storehouse, the blanking position in storehouse is in the lower section of the one-level drying device and the top of the secondary drying device, and institute State blanking storehouse and connect the pre-dried biomass outlet and the pre-dried biomass entrance,Curing range, the curing range have dried biomass entrance, solid product outlet and bakee product gas outlet, institute State dried biomass entrance with dried biomass outlet to be connected, there is the second conveyer belt and radiation in the curing range Pipe, the radiant tube have thermal source inlet and exhanst gas outlet；Profit condensing unit, the profit condensing unit, which has, bakees gaseous product entrance, profit outlet and mixed gas outlet, The baking gaseous product entrance is connected with the baking product gas outlet；Gas cleaning plant, the gas cleaning plant have mixed gas entrance and combustible gas outlet, and the mixed gas enters Mouth is connected with the mixed gas outlet.
- 2. the system of processing biomass according to claim 1, it is characterised in that the blanking storehouse has material rotating plate, institute State material rotating plate with the drive device suitable for driving the material rotating plate to rotate to be connected, and the rotary shaft of the material rotating plate is in the horizontal direction Extension.
- 3. the system of processing biomass according to claim 1, it is characterised in that set in the secondary drying device Heating member is microwave heating member.
- 4. the system of processing biomass according to claim 1, it is characterised in that the combustible gas outlet and electricity generation system It is connected, the electricity generation system is connected with the microwave heating member in the secondary drying device.
- 5. the system of processing biomass according to claim 1, it is characterised in that the combustible gas outlet and the spoke The thermal source inlet for penetrating pipe is connected, so as to the thermal source using combustible gas as the radiant tube.
- 6. the system of processing biomass according to claim 1, it is characterised in that the exhanst gas outlet of the radiant tube and institute The heat smoke import for stating one-level drying device is connected.
- 7. the system of processing biomass according to claim 1, it is characterised in that also include in the one-level drying device Two the first temperature measuring equipments, described two first temperature measuring equipments are respectively adjacent to the biomass inlet and the pre-dried biomass Outlet is set.
- 8. the system of processing biomass according to claim 1, it is characterised in that also include in the secondary drying device Two the second temperature measuring equipments, described two second temperature measuring equipments are respectively adjacent to the pre-dried biomass entrance and the dry life Material outlet is set.
- 9. the system of the processing biomass according to claim 7 or 8, it is characterised in that the temperature measuring equipment is infrared Temperature measurer.
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| CN201720461547.0U CN206970556U (en) | 2017-04-27 | 2017-04-27 | The system for handling biomass |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923688A (en) * | 2021-02-04 | 2021-06-08 | 浙江长三角聚农科技开发有限公司 | Low-temperature and high-temperature two-stage drying system and process using waste heat of modular biomass high-speed carbonization equipment as heat source |
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2017
- 2017-04-27 CN CN201720461547.0U patent/CN206970556U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923688A (en) * | 2021-02-04 | 2021-06-08 | 浙江长三角聚农科技开发有限公司 | Low-temperature and high-temperature two-stage drying system and process using waste heat of modular biomass high-speed carbonization equipment as heat source |
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