CN105018123B - A kind of baking method and system for improving being heated evenly property of biomass and the thermal efficiency - Google PatentsA kind of baking method and system for improving being heated evenly property of biomass and the thermal efficiency Download PDF
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- CN105018123B CN105018123B CN201410183062.0A CN201410183062A CN105018123B CN 105018123 B CN105018123 B CN 105018123B CN 201410183062 A CN201410183062 A CN 201410183062A CN 105018123 B CN105018123 B CN 105018123B
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The present invention relates to a kind of baking method and system for improving being heated evenly property of biomass and the thermal efficiency, wherein method is included in the periphery of screw rod roaster and is internally formed the indirectly heat of inside and outside, and the flue gas of inside and outside indirectly heat and biomass to be bakeed are co-current flow and counter-current flow respectively；Product is bakeed through cold air heat exchange, forms the drying that hot-air is used for the predrying of biomass or is used for biomass to be bakeed after being mixed with the flue gas after heating biological matter, heat smoke takes Insulation in transmitting procedure.Baking system includes screw rod roaster, biomass feed system, burner, smoke circulating system, biomass drier, the collection for bakeing product and cooling unit.The present invention effectively increases the uniformity of screw rod roaster temperature, bakees the stability of product quality, and also improving heat transfer efficiency reduces heat loss.The flue gas of burner, the effective combination for bakeing product cooling system and biomass drier, further increase system thermal efficiency.
It is more particularly to a kind of to improve being heated evenly property of biomass and heat the present invention relates to the method and apparatus that biomass bakees The baking method and system of efficiency.
The energy is the basis that modern society depends on for existence and development, though the development and utilization of fossil energy is beneficial to development and passed through Ji, but also increase pollutant emission, compromise ecological environment and the general level of the health of people, development clean reproducible energy into For urgent problem.Biomass energy belongs to low-carbon clean energy resource, and there is the resource of abundant biological renewable energy in China, and it grinds Send out, popularize to improve China energy resource structure and ecological environment it is significant.Biomass bakees technology can be effective Biomass energy metric density and bulk density are improved, the loss of biomass water imbibition and microorganism is reduced, reduces transport and storage in ground Cost, the performance for improving crushing and material processing, combustion gasification process can be independently used for by bakeing product, can be used for and coal The mixed mixed gasification of combustion, so as to promote biomass energy widely to apply.
The pretreatment mode of biomass mainly includes drying, crushes, is molded, bakeing, pyrolysis at present.Conventional 200 DEG C with Under dry technology comparative maturity, but after common dry, still often there is 2-10% moisture (wet basis mass fraction) in biomass, Due to the water imbibition of biomass, easily make moist again, and biomass self-energy density and bulk density are low, not easy grinding, hyperoxia The characteristics such as content are not improved yet.Baking technology can improve or solve problem caused by these Biomass Characteristics.Bakee It is under conditions of normal pressure, starvation, reaction temperature slow pyrolysis process between 200~300 DEG C, life can be effectively improved Matter energy density and bulk density, raising are ground and process performance, the water imbibition of reduction or elimination biomass, reduction fortune Defeated and carrying cost.
Current biomass, which bakees technology, mainly includes drum reactor, screw reactor, fluid bed, compartment furnace, band Formula reactor etc., mode of heating directly heats and indirectly heat.The Andritz and ECN in Europe develop one kind and directly heated Vertical tubular it is dry and roaster, biomass are dried and dried successively in the vertical cartridge reactor at 3 grades or more than 3 grades Roasting, Andritz and ECN have established 1 ton per hour of demonstration plant in Denmark.Andritz also developed the rolling of indirectly heat Cartridge reactor and corresponding biomass moulding technical matters, drum reactor temperature are 250-300oC, residence time of material About 30 minutes, its demonstration plant scale reached 1 ton per hour of production capacity.The New Biomass Energy companies in the U.S. open A kind of screw rod roaster of indirectly heat is sent out, heat caused by baking gas burning reaches biomass by oil medium.Holland Biolake develop the screw rod roaster of indirectly heat, roaster temperature is less than 270oC, and the residence time is less than 10 minutes, The heat of heating is connect from the burning for bakeing gas, pilot plant scale is up to 1 ton per hour of production capacity.Either directly also It is indirectly heat baking technology, the subject matter that presently, there are is even biomass uneven heating, unstable product quality, semicoke life Into low with heat transfer efficiency, for directly heating baking technology, the influence of the quality of product also heated gas componant is bakeed；Need Develop energy self-balancing, be heated evenly, the baking system that product quality is stable, heat transfer efficiency is high.
The content of the invention
Present invention aim to address existing curing range biomass uneven heating is even, unstable product quality and the thermal efficiency The problem of relatively low, there is provided a kind of energy self-balancing simultaneously improves being heated evenly property of biomass and the method for system thermal efficiency, Jin Erkai Send out to realize the biomass baking system of preceding method a kind of.
Realizing the object of the invention technical scheme is：
A kind of to improve being heated evenly property of biomass and the method for system thermal efficiency, this method includes using screw rod roaster, Caused baking gas generates heat smoke after burner combustion, and the flue gas is used for the heating of baking system, in screw rod roaster Periphery and internal formed respectively treat the outside indirectly heat for bakeing biomass and internal indirectly heat, and outside indirectly heat Flue gas and biomass to be bakeed in counter-current flow, the flue gas of internal indirectly heat and biomass to be bakeed be in co-current flow, together When screw rod rotary motion treat bakee biomass be stirred and promotes conduct heat；Product is bakeed to hand over through cold air heat Change, form hot-air and be used for the predrying of biomass or be used for biomass to be bakeed after being mixed with the flue gas after heating biological matter Dry, heat smoke takes Insulation in transmitting procedure.
Realize that the biomass baking system of the above method, including biomass drier, biomass feed system, screw rod bakee Unit, burner, smoke circulating system, baking collection of products unit, baking product cooling system, wherein biomass drier, Biomass feed system, screw rod bakee unit and are sequentially connected, and burner bakees the volatile matter of the screw rod roaster of unit with screw rod Pipe connection is removed, baking product screw rod blanking device and the discharger conveying of baking product rotary valve bakee product to baking collection of products In device, bakee product collector and be connected with bakeing the tremie pipe of product rotary valve discharger tail end, bakee product collector with drying Roast product cooling system and baking product is conveyed by screw conveyor.
Above-mentioned screw rod, which bakees unit, includes screw rod roaster, and its outside at least part has roaster thermal jacket, the chuck Connected with burner by burner flue；Its inside has roaster screw rod, and the axle of roaster screw rod is hollow shaft, empty Mandrel interior is fixed with fume pipe one, is connected with roaster thermal jacket outlet and fFlue gas collector；The tail end of screw rod roaster The fFlue gas collector of setting, it is connected by fume pipe two with biomass drier；The baking product cooling system includes cold But device, cooler is interior to bakee product using cold air cooling, directly connects through hot gas outlet duct and biomass drier after heat exchange Connect, or be connected after being connected with fume pipe two with biomass drier.
Above-mentioned biomass baking system, roaster are screw reactors, and the outer wall of screw rod roaster is hollow, the inside cloth Be equipped with deflection plate, flue gas inside helical flow and and biomass in counter-current flow to extend the residence time of flue gas, increase cigarette The turbulent extent and heat transfer efficiency of gas, improve the Temperature Distribution that region is dried and bakeed inside roaster.
Above-mentioned biomass baking system, the screw rod of roaster be it is hollow, screw rod roaster by the hollow shaft of screw rod and The fume pipe of the inside realize in indirectly heat, inside hollow shaft flue gas tube outer surface have the groove of indent or the thrust of evagination with The air flue of cross-sectional area alternately change is formed so as to increasing turbulent flow and heat transfer of the flue gas inside hollow shaft with the inwall of hollow shaft Efficiency.
Above-mentioned biomass baking system, the screw conveyor of biomass feed system make biomass using screw rod transmission design Material is evenly supplied to one or more rotary valve feeder below.Rotary valve feeder plays gas lock effect to avoid air Into roaster, meanwhile, steam and volatilization partial pressure inside roaster prevent air to flow into.
Above-mentioned biomass baking system, bakee product screw rod blanking device and use conveying and extruding design to realize baking product Collector and effective material envelope and the isolation for bakeing product cooler, air or inert gas can also bakee product collector and cold But injected between device to strengthen sealing gland, while bakee product rotary valve discharger to have gas lock effect to prevent from bakeing product cooler The air of the inside enters roaster, and the steam and volatilization partial pressure inside roaster also prevent the inflow of air.
Above-mentioned biomass baking system, bakeing the hot-air of product cooler, to can be used for biomass predrying or and from cigarette The flue gas that gas collector comes is mixed into biomass drier, and dried biomass is fed by gravity, screw rod or rotary valve Device is transported to the feed bin of biomass feeding unit.
Thermal jacket, burner, fFlue gas collector and the various cigarettes of above-mentioned biomass baking system, screw rod roaster and outside Feed channel has heat-insulation layer.
Above-mentioned biomass baking system, roaster are screw reactors, and the outer wall of screw rod roaster has thermal jacket, the inside cloth Deflection plate is equipped with, the flue gas come from burner is inside helically flowed to extend the residence time of flue gas and increase the rapids of flue gas Flow degree and heat transfer efficiency.Flue gas and biomass inside roaster thermal jacket are in counter-current flow, are improved inside roaster Dry and bakee the Temperature Distribution in region.The screw rod of roaster be also it is hollow, screw rod roaster by the hollow shaft of screw rod and Indirectly heat in the fume pipe realization inside it is reached, flue gas tube outer surface has the groove of indent or the projection of evagination in hollow shaft Thing with the inwall of hollow shaft formed cross-sectional area alternately change air flue so as to increase turbulent flow of the flue gas inside hollow shaft and Further improve heat transfer efficiency.Heat roaster and Qi Li together inside the thermal jacket of screw rod roaster and its screw rod hollow shaft The biomass in face, make biomass internal/external heating more uniform, the horizontal stroke inside the deflection plate and screw rod hollow shaft of roaster thermal jacket The air flue that sectional area alternately changes, further promote the turbulent flow and heat transfer efficiency of flue gas.The screw rod hollow shaft of roaster can be with At the radial center of screw rod pipeline or hopper, can also radial asymmetrical arrangement make hollow shaft under screw rod pipeline or hopper At the inwall in face, promote the heat transfer of hollow shaft and biomass, while also shorten the gap of screw rod blade tip and bottom hopper, Blade is set more more effectively to promote material to move forward and promote the rolling and mixing of material completely.In roaster screw rod hollow shaft Flue gas enter biomass drier through fFlue gas collector and smoke conveying duct.From roaster come out baking gas pipeline and Flue into screw rod hollow shaft is close side-by-side and sets insulating outside two pipelines, to ensure to bakee The temperature of gas pipeline prevents from bakeing gas condensation.Bakee gas and be used for screw rod in burner and air mixed combustion, its flue gas The indirectly heat system of roaster.Biomass feed system includes screw conveyor and rotary valve feeder, and screw conveyor will Biomass material is respectively delivered to one or more rotary valve feeder, and rotary valve feeder and the material above it play gas lock work With steam and baking gas pressure inside roaster are also prevented from air and enter roaster from biomass feed system.Bakeing Device end, bakeing collection of products unit includes bakeing product screw rod blanking device, bakee product rotary valve discharger and bakeing product Collector, the solid product that screw rod blanking device collects roaster is biological coal, and baking product is transported to by rotary valve discharger Collector.Solid product will be further bakeed using screw conveyor and is transported to cooler, this screw rod is bakeing product collector Conveying extruding design is used to bakee being effectively isolated for product collector and cooler, air or inertia to realize between cooler Gas can also inject to strengthen sealing gland, between roaster and baking product collector bakeing between product collector and cooler Rotary valve discharger realize roaster and bakee product collector between being effectively isolated, the steam in roaster and bakee gas Body pressure also prevent gas and flow backward to roaster from product cooler is bakeed.The hot-air of solid product heating is baked from baking Roasting product cooler is delivered to biomass pre-dryer through pipeline connection or is input to the flue one come from fFlue gas collector And enter biomass drier, so as to improve systematic heat utilization rate.Screw rod roaster and its thermal jacket, burner, flue gas are received Storage and all flues have insulating.
The present invention has positive effect：(1) the screw rod roaster of the inventive method or system is inside and outside indirectly heat phase With reference to, make inside and outside the temperature of roaster and the heated of biomass more uniformly, to avoid biomass hot-spot；(2) spiral shell Bar roaster thermal jacket, the inside are disposed with deflection plate, and the flue gas come from burner is inside helically flowed to extend flue gas Residence time avoids short circuit and increases the turbulent extent and heat transfer efficiency of flue gas；(3) screw rod of roaster is hollow that screw rod dries Griller by the hollow shaft of screw rod and the fume pipe reached inside it realize in indirectly heat, flue gas tube outer surface has in hollow shaft The groove of indent or the thrust of evagination replace the air flue changed so as to increase cigarette to form cross-sectional area with the inwall of hollow shaft Turbulent flow and heat transfer efficiency of the gas inside hollow shaft；(4) flue gas in screw rod roaster thermal jacket and biomass are in counter-current flow, Flue gas and biomass inside hollow shaft are in co-current flow, are stirred effect along with roaster screw rod, make biomass thing Material is uniformly heated the generation for avoiding hot-spot phenomenon；(5) design of the screw conveyor of biomass feed system The function of uniform biomass material is made it have, enables each screw reactor of multiscrew roaster have uniform material point Match somebody with somebody；(6) product collector and cooler are bakeed material envelope is realized using the conveying extruding design of screw rod, bakee product collector and cold But inert gas or air can be also inputted between device to strengthen sealing gland；The rotary valve feeder of biomass charging and baking product Rotary valve discharger realizes the isolation of roaster and upstream and downstream unit, steam in roaster and bakees gas pressure and prevents sky Gas enters roaster；(7) flue for bakeing gas pipeline and entering roaster screw rod hollow shaft from roaster out is tight It is close side-by-side and insulating is set outside two pipelines, to ensure that the temperature for bakeing gas pipeline prevents from bakeing gas Condense.
Brief description of the drawings
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing The present invention is described in further detail, wherein
Fig. 1 is the structural representation of biomass baking system of the present invention；
Fig. 2 is the structural representation of the embodiment of the present invention 1；
Fig. 3 is the structural representation of the embodiment of the present invention 2.
1 biomass drier, 2 burners, 3 bakee product collector, 4 screw rod roasters, 5 roaster thermal jackets, 6 burnings Device flue, 7 roaster screw rods, 8 hollow shafts, 9 fume pipes one, 10 roaster thermal jacket outlets, 11 fFlue gas collectors, 12 Fume pipe two, 13 coolers, 14 hot gas outlet ducts, 15 roaster volatile matters remove pipe, 16 biomass feeding units, 161 spiral shells Bar conveyer, 162 rotary valve feeders, 163 biomass silos, 17 bakee product screw conveyor, and 18 bakee under product screw rod Glassware, 19 bakee product rotary valve discharger.
(embodiment 1, see Fig. 1 and Fig. 2)
The present embodiment includes screw rod roaster 4, and there is roaster thermal jacket 5 its outside, and 12 foldings are disposed with inside thermal jacket Flowing plate, chuck are connected with burner 2 by burner flue 6, are helically flowed inside chuck from the flue gas of burner 2 Dynamic, the flue gas and biomass of the inside of roaster thermal jacket 5 be in counter-current flow, make that the arid region temperature of screw rod roaster 4 is relatively low, baking Roasting regional temperature is higher, improves the Temperature Distribution of the inside of screw rod roaster 4.Roaster screw rod 7 and hollow, screw rod baking Device 4 by the hollow shaft 8 of screw rod and the fume pipe 1 reached inside it realize in indirectly heat, the inner fume pipe appearance of hollow shaft 8 There is the groove of multiple indents in face.Roaster and biology are heated together from the outside of screw rod roaster 4 and its inside of screw rod hollow shaft 8 Matter, make biomass internal/external heating more uniform, the cross-sectional area inside the deflection plate and screw rod hollow shaft of roaster thermal jacket is handed over For the air flue of change, the turbulent flow and heat transfer efficiency of flue gas are promoted.The screw rod hollow shaft 8 of roaster is in the radial direction of screw rod pipeline At the heart.Flue gas in roaster screw rod hollow shaft 8 enters biomass drier 1 through fFlue gas collector 11 and fume pipe 2 12.Cigarette Tracheae 1 connects with roaster thermal jacket outlet 10 and fFlue gas collector 11, and the baking gas come out from roaster is baked Device volatile matter remove pipe 15 and enter screw rod hollow shaft flue 10 it is close side-by-side and set outside two pipelines Insulating, to ensure that the temperature of roaster volatile matter removal pipe 15 prevents from bakeing gas condensation, gas is bakeed in burner 2 Interior and air mixed combustion, its flue gas are used for the indirectly heat system of screw rod roaster 4.Biomass feeding unit 16 includes biology Biomass material is respectively delivered to 4 by material storehouse 163, screw conveyor 161 and rotary valve feeder 162, screw conveyor 161 Individual rotary valve feeder 162, rotary valve feeder 162 and the material above it play gas lock effect, the inside of screw rod roaster 4 Steam and baking gas pressure prevent air from entering from biomass feed system in roaster.In roaster end, product is bakeed Screw rod blanking device 18 by by baking product tremie pipe Lai baking product be biological coal collect, by bakee product rotary valve discharge Device 19, which is transported to, bakees product collector 3.Using product screw conveyor 17 is bakeed cooler is transported to by solid product is bakeed 13, this screw rod uses conveying extruding design to realize that the material for bakeing product collector 3 and cooler 13 seals, air or inert gas Also can be injected bakeing between product collector 3 and cooler 13 to strengthen sealing gland, screw rod roaster 4 and baking product collector Baking product rotary valve discharger 19 between 3 realizes being effectively isolated between screw rod roaster 4 and baking product collector 3, Steam and baking gas pressure in roaster also prevent gas and flows backward to screw rod roaster 4 from cooler 13.It is baked solid The hot-air of body product heats from bakee product cooler through hot gas outlet duct 14 connection be delivered to biomass drier 1 so as to Improve systematic heat utilization rate.Screw rod roaster 4, roaster thermal jacket 5, burner 2, fFlue gas collector 11 and all fume pipes There is insulating in road.
(embodiment 2, see Fig. 1 and Fig. 3)
The present embodiment includes screw rod roaster 4, and there is roaster thermal jacket 5 its outside, and 6 bafflings are disposed with inside thermal jacket Plate, chuck are connected with burner 2 by burner flue 6, are helically flowed inside chuck from the flue gas of burner 2 To extend the residence time of flue gas and increase the turbulent extent and heat transfer efficiency of flue gas, the flue gas of the inside of roaster thermal jacket 5 and Biomass is in counter-current flow, make the arid region temperature of screw rod roaster 4 it is relatively low, bakee regional temperature it is higher, improve screw rod baking The Temperature Distribution of the inside of griller 4.Roaster screw rod 7 and hollow, screw rod roaster 4 is by the hollow shaft 8 of screw rod and reaches Fume pipe 1 inside it realize in indirectly heat, the inner flue gas tube outer surface of hollow shaft 8 have the thrust of evagination with and hollow shaft 8 inwall forms the air flue of cross-sectional area alternately change so as to increasing turbulent flow and heat transfer efficiency of the flue gas inside hollow shaft.From Roaster and biomass are heated in the outside of screw rod roaster 4 and its inside of screw rod hollow shaft 8 together, make biomass internal/external heating more Add uniformly, the air flue that the cross-sectional area inside the deflection plate and screw rod hollow shaft of roaster thermal jacket alternately changes, promote cigarette The turbulent flow and heat transfer efficiency of gas.1 or multiple screw rod 7 of roaster makes screw rod blade tip and material below rectangle hopper Below groove and side inner walls gap it is as small as possible to avoid dead angle, while make blade more completely more effectively promote material forward Move and promote the rolling and mixing of material.Counter-rotating between the two neighboring screw rod of roaster.In roaster screw rod hollow shaft 8 Flue gas enter biomass drier 1 through fFlue gas collector 11 and fume pipe 2 12.Fume pipe 1 exports with roaster thermal jacket Pipe 10 connects with fFlue gas collector 11, and the roaster volatile matter come out from roaster removes pipe 15 and enters the cigarette of screw rod hollow shaft Feed channel 10 is close side-by-side and sets insulating outside two pipelines, to ensure that roaster volatile matter removes pipe 15 Temperature prevent from bakeing gas condensation, bakee gas in the burner 2 and air mixed combustion, its flue gas be used for screw rod roaster 4 indirectly heat system.Biomass feeding unit 16 includes biomass silo 163, screw conveyor 161 and rotary valve feeder 162, biomass material is respectively delivered to one or more rotary valve feeder 162, rotary valve feeder by screw conveyor 161 162 play gas lock effect with the material above it, and the steam and baking gas pressure of the inside of screw rod roaster 4 prevent air from life Substance feeds system enters roaster.In roaster end, bakee product screw rod blanking device 18 will by baking product blanking groove Lai Baking product be biological coal collect, by bakee product rotary valve discharger 19 be transported to bakee product collector 3.Using baking Roasting screw conveyor 17 is transported to cooler 13 by solid product is bakeed, and this screw rod uses conveying extruding design to bakee production to realize The material of thing collector 3 and cooler 13 seals, and air or inert gas can also be noted bakeing between product collector 3 and cooler 13 Enter to strengthen sealing gland, screw rod roaster 4 and the baking product rotary valve discharger 19 bakeed between product collector 3 realize screw rod Being effectively isolated between roaster 4 and baking product collector 3, the steam in roaster and baking gas pressure also prevent gas Body flows backward to screw rod roaster 4 from cooler 13.The hot-air for being baked solid product heating is empty from product cooler heat is bakeed Letter shoot 14 is input to the flue 2 12 that fFlue gas collector is come and enters biomass drier 1, so as to improve system Heat utilization efficiency.Screw rod roaster 4, roaster thermal jacket 5, burner 2, fFlue gas collector 11 and all flues have heat-insulated guarantor Warm layer.
Particular embodiments described above, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., it should be included in the guarantor of the present invention Within the scope of shield.
1. a kind of biomass baking system, including biomass drier (1), biomass feed system, screw rod bakee unit, burning Device (2), smoke circulating system, bakee collection of products unit, bakee product cooling system, it is characterised in that：The screw rod bakees Unit includes screw rod roaster (4), and its outside at least part has roaster thermal jacket (5), the roaster thermal jacket and burning Device (2) is connected by burner flue (6)；There is roaster screw rod (7), roaster screw rod (7) inside screw rod roaster Axle be hollow shaft (8), fume pipe one (9) is fixed with inside hollow shaft (8), with roaster thermal jacket outlet (10) and flue gas Collector (11) connects；The tail end of screw rod roaster (4) is provided with fFlue gas collector (11), and it passes through fume pipe two (12) and life Material drier (1) connects；The baking product cooling system includes cooler (13), uses cold air cold in cooler (13) But bakee product, be directly connected to after heat exchange through hot gas outlet duct (14) and biomass drier (1), or with fume pipe two (12) It is connected after connection with biomass drier (1)；At least one deflection plate is provided with inside the roaster thermal jacket (5)；Roaster heat There is heat-insulation layer outside chuck (5) and screw rod roaster (4)；There are the groove or evagination of indent in described (9) outer surface of fume pipe one Thrust.
2. biomass baking system according to claim 1, it is characterised in that：The hollow shaft (8) of roaster screw rod is located at At the radial center of screw rod pipeline or hopper, or it is radial asymmetrical arrangement.
3. biomass baking system according to claim 1, it is characterised in that：The hollow shaft 8 of roaster screw rod) internal The fixation of fume pipe one (9) uses cantilever design, or fixes respectively at roaster screw rod both ends.
4. biomass baking system according to claim 1, it is characterised in that：The volatile matter of screw rod roaster (4) passes through Roaster volatile matter removes pipe (15) and is transported in burner (2), and roaster volatile matter removes pipe (15) and roaster thermal jacket Outlet (10) and enter roaster screw rod hollow shaft fume pipe one (9) it is close side-by-side and in its whole pipeline peripheral hardware Put insulating；The fFlue gas collector (11), burner flue (6), roaster thermal jacket outlet (10), flue gas There is heat-insulation layer outside pipe two (12).
5. biomass baking system according to claim 1, it is characterised in that：The biomass feed system includes biology Matter feed arrangement (16), the biomass feeding unit include screw conveyor (161), and its underpart is connected with 1 to multiple rotary valves Feeder (162).
6. biomass baking system according to claim 1, it is characterised in that：The baking collection of products unit includes drying Product screw rod blanking device (18) is roasted, bakee product rotary valve discharger (19) and bakees product collector (3), bakees product cooling System includes cooler (13), and it is defeated that baking product screw rod is provided between the baking product collector (3) and cooler (13) Device (17) is sent, extrudes and expects using appropriateness using screw rod transmission and bakeing section between product collector (3) and cooler (13) Envelope design bakees being effectively isolated for product collector (3) and cooler (13), air or inert gas in baking product to realize Injected between collector (3) and cooler (13) to strengthen sealing gland, at the same bakee product rotary valve discharger have gas lock effect with Prevent that the air inside cooler (13) from entering screw rod roaster (4), steam and volatilization partial pressure inside screw rod roaster (4) It also prevent the inflow of air.
Priority Applications (1)
|Application Number||Priority Date||Filing Date||Title|
|CN201410183062.0A CN105018123B (en)||2014-04-30||2014-04-30||A kind of baking method and system for improving being heated evenly property of biomass and the thermal efficiency|
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|Application Number||Priority Date||Filing Date||Title|
|CN201410183062.0A CN105018123B (en)||2014-04-30||2014-04-30||A kind of baking method and system for improving being heated evenly property of biomass and the thermal efficiency|
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|CN105018123A CN105018123A (en)||2015-11-04|
|CN105018123B true CN105018123B (en)||2017-12-19|
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|CN201410183062.0A Active CN105018123B (en)||2014-04-30||2014-04-30||A kind of baking method and system for improving being heated evenly property of biomass and the thermal efficiency|
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|CN (1)||CN105018123B (en)|
Families Citing this family (6)
|Publication number||Priority date||Publication date||Assignee||Title|
|CN105885951B (en) *||2016-05-20||2018-10-23||北京化工大学||A kind of double bed coupling pyrolysis gasification system directly or indirectly heating combination|
|CN105861001B (en) *||2016-05-25||2019-06-07||北京化工大学||A kind of interior external heat, the moving bed pyrolysis method and system for indirectly and directly heating combination|
|CN106418615B (en) *||2016-09-30||2019-04-05||江苏法斯特机械有限公司||A kind of feed curing kettle|
|CN106701243A (en) *||2017-01-13||2017-05-24||沈阳航空航天大学||Biomass water washing-baking combined pretreatment and potassium resource recovery poly-generation system|
|CN106939170A (en) *||2017-02-20||2017-07-11||华南农业大学||A kind of solar energy collaboration two-step method biomass screw bakees preprocess method and device|
|CN109135779B (en) *||2018-09-25||2019-12-13||华中科技大学||Utilize device of incessant pyrolysis living beings of solar energy whole day|
Family Cites Families (8)
|Publication number||Priority date||Publication date||Assignee||Title|
|EP1405895A1 (en) *||2002-10-04||2004-04-07||Danieli Corus Technical Services BV||Apparatus and process for the treatment of a material under pyrolytical conditions, and use thereof|
|CN1234803C (en) *||2003-07-02||2006-01-04||山东省科学院能源研究所||Method and device for producing hydrogen-rich gas from biomass|
|NL1030864C2 (en) *||2006-01-06||2007-07-09||Stichting Energie||Method and device for treating biomass.|
|US8276289B2 (en) *||2009-03-27||2012-10-02||Terra Green Energy, Llc||System and method for preparation of solid biomass by torrefaction|
|US8449724B2 (en) *||2009-08-19||2013-05-28||Andritz Technology And Asset Management Gmbh||Method and system for the torrefaction of lignocellulosic material|
|CN201746512U (en) *||2010-07-26||2011-02-16||刘毅||Improved environment-friendly and energy-saving cracking device|
|DE102010045612A1 (en) *||2010-09-17||2012-03-22||Erich Schürmann||Method and device for torrefaction of fermentation residues in biogas plants|
|CN102010730A (en) *||2010-12-19||2011-04-13||昆明理工大学||Biomass spiral pyrolytic process and antipyretic device|
- 2014-04-30 CN CN201410183062.0A patent/CN105018123B/en active Active
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