CN114921255B - Pyrolysis device and thermoelectric integrated treatment system - Google Patents
Pyrolysis device and thermoelectric integrated treatment system Download PDFInfo
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- CN114921255B CN114921255B CN202210527536.3A CN202210527536A CN114921255B CN 114921255 B CN114921255 B CN 114921255B CN 202210527536 A CN202210527536 A CN 202210527536A CN 114921255 B CN114921255 B CN 114921255B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
- C10B49/14—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot liquids, e.g. molten metals
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/06—Means for regulation, monitoring, measurement or control, e.g. flow regulation of illumination
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
- C12M41/34—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of gas
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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
Abstract
The invention relates to the technical field of pyrolysis treatment, in particular to a pyrolysis device and a thermoelectric integrated treatment system. The pyrolysis device comprises a shell and a spiral stirring piece, wherein the shell contains biomass and molten salt, the spiral stirring piece is rotatably arranged in the shell and is provided with a spiral surface, the spiral surface is uniformly provided with a plurality of vent holes, and the vent holes are used for providing a channel for pyrolysis gas generated by pyrolyzing the biomass by the molten salt to move upwards; as the helical agitator rotates one of clockwise or counterclockwise, the biomass gradually moves downward under the extrusion of the helicoid to make full contact with the molten salt. The scheme provided by the invention can be beneficial to full contact of biomass and molten salt.
Description
Technical Field
The invention relates to the technical field of pyrolysis, in particular to a pyrolysis device and a thermoelectric integrated treatment system.
Background
In recent years, the yield of the biomass solid waste in China is high, and the biomass solid waste is not utilized, so that not only is the resource wasted, but also serious threat is caused to the ecological environment due to improper disposal. The method is an important way for realizing resource recovery, and has great economic value.
In the related art, molten salt heat treatment of biomass may be employed. However, since the density of biomass is smaller than that of molten salt, biomass floats on the surface of molten salt, which is disadvantageous for sufficient contact of biomass and molten salt.
Therefore, there is a need for a pyrolysis device and a thermoelectric integrated treatment system to solve the above problems.
Disclosure of Invention
The invention provides a pyrolysis device and a thermoelectric integrated treatment system, which can be beneficial to full contact of biomass and molten salt.
In a first aspect, embodiments of the present invention provide a pyrolysis apparatus, comprising:
a housing containing biomass and molten salt;
the spiral stirring piece is rotatably arranged in the shell and is provided with a spiral surface, a plurality of vent holes are uniformly formed in the spiral surface, and the vent holes are used for providing a channel for pyrolysis gas generated by pyrolyzing the biomass by the molten salt to move upwards;
as the helical agitator rotates one of clockwise or counterclockwise, the biomass gradually moves downward under the extrusion of the helicoid to make full contact with the molten salt.
In one possible design, the device further comprises a filter screen arranged on the inner wall of the shell;
when the fused salt is utilized to complete the pyrolysis of the biomass, the spiral stirring piece rotates clockwise or anticlockwise so as to drive ash residues and the fused salt after the pyrolysis of the biomass to move upwards to the filter screen by utilizing the spiral surface;
the filter screen is used for blocking the ash and filtering the molten salt.
In one possible design, the method further comprises:
a feeding assembly fixed on a side wall of the housing, the feeding assembly being for feeding the biomass into the housing;
the universal joint is respectively connected with the feeding assembly and the spiral stirring piece, and the spiral stirring piece is enabled to rotate through the transmission of the universal joint under the driving of the feeding assembly.
In one possible design, the filter screen is provided with a mounting notch for avoiding interference of the filter screen with the feed assembly when the filter screen is mounted to the inner wall of the housing.
In one possible design, the feeding assembly comprises a motor, a hopper, a feeding pipe and an auger, wherein the feeding pipe is connected below the hopper, the auger is arranged in the feeding pipe, the feeding pipe is fixed on the side wall of the shell, and a discharging hole is formed in the part of the feeding pipe, which is positioned in the shell;
one end of the auger is connected with the motor, the other end of the auger is connected with the universal joint, a spiral blade is arranged on the periphery of the auger, and the spiral blade is used for smashing biomass.
In one possible design, the device further comprises a fixing piece, wherein the fixing piece is fixed on the inner wall of the shell, and the fixing piece is fixed with the universal joint.
In one possible design, the edge of the spiral surface is further provided with a baffle plate, and the baffle plate is used for matching with the spiral surface so as to drive ash residues and molten salt after biomass pyrolysis to move upwards.
In one possible design, the top of the housing is provided with a detachable sealing cover provided with an air outlet for discharging generated pyrolysis gas out of the housing.
In one possible design, the bottom of the housing is provided with a salt outlet for discharging the pyrolysed molten salt out of the housing.
In a second aspect, the embodiment of the invention provides a thermoelectric integrated treatment system, which comprises a pyrolysis device, an air path subsystem, a water path subsystem and a cultivation greenhouse, wherein the pyrolysis device is connected with the air path subsystem, an air outlet at the tail end of the air path subsystem is positioned in the cultivation greenhouse, the water path subsystem comprises a heat dissipation component, the heat dissipation component is positioned in the cultivation greenhouse, and nostoc sphaeroids kutz is planted in the cultivation greenhouse;
the pyrolysis device is used for pyrolyzing biomass to obtain first pyrolysis gas; wherein the first pyrolysis gas comprises carbon monoxide, carbon dioxide, hydrogen, water vapor, methane, and tar in a gaseous state;
the gas path subsystem is used for converting the first pyrolysis gas into carbon dioxide so as to send the carbon dioxide into the cultivation greenhouse through the tail end gas outlet; wherein the first pyrolysis gas releases heat during conversion to carbon dioxide;
the waterway subsystem is used for absorbing heat released by the first pyrolysis gas in the process of converting the first pyrolysis gas into carbon dioxide so as to release the absorbed heat into the cultivation greenhouse through the heat radiation component;
the pyrolysis device is any one of the pyrolysis devices described above.
According to the scheme, the selectable spiral stirring piece is arranged in the shell, and the spiral stirring piece is provided with the spiral surface, so that when the spiral stirring piece rotates clockwise or anticlockwise, biomass gradually moves downwards under the extrusion of the spiral surface to be fully contacted with molten salt, and the full contact of the biomass and the molten salt can be facilitated; moreover, the spiral surface is uniformly provided with a plurality of vent holes, and the vent holes can provide a channel for pyrolysis gas generated by pyrolyzing biomass by molten salt to move upwards, so that the pyrolysis gas can be conveniently discharged from the molten salt in time.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the invention and that other drawings may be obtained based on these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a pyrolysis apparatus according to one embodiment of the present invention;
FIG. 2 is a schematic view of a part of the pyrolysis apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a part of the pyrolysis apparatus according to an embodiment of the present invention at another view angle;
FIG. 4 is a top view of a screen according to one embodiment of the present invention;
fig. 5 is a schematic diagram of a thermoelectric integrated processing system according to an embodiment of the present invention.
Reference numerals:
1-a pyrolysis device;
11-a housing;
111-sealing cover;
112-an air outlet;
113-a salt outlet;
12-a spiral stirring piece;
121-helicoid;
122-vent holes;
123-baffle;
13-a filter screen;
131-mounting notch;
14-a feed assembly;
141-a hopper;
142-feeding pipe;
142 a-a discharge port;
143-auger;
143 a-helical blades;
15-universal joints;
16-a fixing piece;
2-an air path subsystem;
21-a first heat exchange device;
22-a fuel cell;
23-a gas storage tank;
231-solenoid valve;
24-a second heat exchange device;
25-a dryer;
3-waterway subsystem;
31-a heat dissipating assembly;
32-domestic water pipeline.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
FIG. 1 is a schematic cross-sectional view of a pyrolysis apparatus according to one embodiment of the present invention; FIG. 2 is a schematic view of a part of the pyrolysis apparatus according to an embodiment of the present invention; fig. 3 is a schematic structural view of a part of a pyrolysis apparatus according to an embodiment of the present invention at another view angle. Referring to fig. 1 to 3, a pyrolysis apparatus 1 according to an embodiment of the present invention includes a housing 11 and a spiral stirring member 12, wherein:
the housing 11 contains biomass and molten salt;
the spiral stirring piece 12 is rotatably arranged in the shell 11, the spiral stirring piece 12 is provided with a spiral surface 121, the spiral surface 121 is uniformly provided with a plurality of ventilation holes 122, and the ventilation holes 122 are used for providing a channel for upward movement of pyrolysis gas generated by pyrolyzing biomass by molten salt;
as the helical agitator 12 rotates one of clockwise or counterclockwise, the biomass gradually moves downward under the compression of the helicoid 121 to make full contact with the molten salt.
In the present embodiment, by providing the optional helical stirring member 12 in the housing 11, the helical stirring member 12 has the helical surface 121, so that when the helical stirring member 12 rotates in one of the clockwise or counterclockwise directions, the biomass gradually moves downward under the extrusion of the helical surface 121 to be in full contact with the molten salt, so that the full contact of the biomass and the molten salt can be facilitated; moreover, the helicoid 121 is uniformly provided with a plurality of ventilation holes 122, and the ventilation holes 122 can provide a path for upward movement of pyrolysis gas generated by pyrolysis of biomass by molten salt, thereby facilitating timely discharge of the pyrolysis gas from the molten salt.
It should be noted that, in the embodiment of the present invention, the spiral surface 121 of the spiral stirring member 12 is not identical to the structure of a common stirring paddle. Specifically, the spiral surface 121 of the former is a continuous and overall spiral surface-like structure arranged in the vertical direction, and the latter is only a plurality of intermittently distributed blades arranged in the vertical direction. Wherein the former moves downward not only due to centripetal movement but also mainly due to the pressing or force of the helicoid 121 with the rotation of the helical stirring member 12, and the latter moves downward only due to centripetal movement. Thus, the helicoidal surface 121 of the helical stirring element 12 in the embodiment of the present invention is conceived by the inventor with a great deal of mental effort.
Second, a large amount of pyrolysis gas is generated due to the pyrolysis of the high Wen Rongyan and biomass (e.g., straw), and is difficult to discharge from the molten salt due to the special configuration of the spiral surface 121. To solve this problem, a plurality of ventilation holes 122 may be uniformly formed in the spiral surface 121 (see fig. 2 and 3).
In one embodiment of the present invention, the pyrolysis device 1 further comprises a filter screen 13, wherein the filter screen 13 is disposed on the inner wall of the housing 11;
when the pyrolysis of the biomass is completed by using the molten salt, the spiral stirring piece 12 rotates clockwise or anticlockwise to drive ash and molten salt after the pyrolysis of the biomass to move upwards to the filter screen 13 by using the spiral surface 121;
the screen 13 serves to block ash and filter molten salt.
In the embodiment, the filter screen 13 is arranged, so that molten salt can be recycled; further, by providing the screen 13 on the inner wall of the housing 11, the molten salt can be recycled in the housing 11.
It should be noted that, just because of the special configuration of the spiral surface 121, upward movement of ash and molten salt can be achieved by utilizing the reverse rotation of the spiral stirring member 12 (here, the direction in which the spiral stirring member 12 rotates at the time of pyrolysis is defined as forward rotation). In order to avoid ash from leaking out of the ventilation holes 122, the aperture ratio and the aperture diameter of the ventilation holes 122 may be set to be in a suitable range so that pyrolysis gas can be discharged upward through the ventilation holes 122 and ash cannot leak out too much, and the specific numerical ranges of the aperture ratio and the aperture diameter of the ventilation holes 122 are not particularly limited in the embodiment of the present invention.
In one embodiment of the invention, the pyrolysis apparatus 1 further comprises:
a feeding assembly 14 fixed to a side wall of the housing 11, the feeding assembly 14 being for feeding biomass into the housing 11;
the universal joint 15 is respectively connected with the feeding assembly 14 and the spiral stirring piece 12, and the spiral stirring piece 12 is rotated by the transmission of the universal joint 15 under the driving of the feeding assembly 14.
In this embodiment, by providing the feeding component 14 and the universal joint 15, the feeding component 14 can drive the spiral stirring piece 12 to rotate while feeding is completed, so that the overall structure is simpler and more compact.
It will be appreciated that the helical stirring member 12 may also be directly connected to an external motor, and that biomass may be directly poured into the housing 11 through the top opening of the housing 11, while by providing the feed assembly 14 and the universal joint 15, the overall structure may be made more compact.
Referring to fig. 1 and 4, in one embodiment of the present invention, the filter screen 13 is provided with a mounting notch 131, and the mounting notch 131 is used to avoid interference between the filter screen 13 and the feeding assembly 14 when the filter screen 13 is mounted to the inner wall of the housing 11.
In this embodiment, since ash is deposited in the screen 13 after the screen 13 has completed separating the ash from the molten salt, none of the feed assembly 14, the universal joint 15 and the helical stirring member 12 are removed from the housing 11, and therefore, in order to facilitate the removal of the screen 13, it is necessary that the screen 13 and the several components do not interfere. While the screen 13 is located outside the universal joint 15 and the helical stirring element 12, and therefore does not interfere with these two components, the feeding assembly 14 is connected from the side wall of the housing 11 towards the center of the housing 11, so that the screen 13 cannot be made in an annular configuration (i.e. a configuration of full circumference), but rather should be made in a notched configuration (i.e. an arc-shaped configuration). That is, it is necessary to provide the filter screen 13 with the mounting notch 131 to facilitate the removal of the filter screen 13, and of course, the next mounting of the filter screen 13.
In some embodiments, the screen 13 is semi-circular in configuration, so long as the mounting notches 131 are guaranteed to avoid interference with the feed assembly 14. In particular, it is sufficient to ensure that the mounting notches 131 avoid interference with the feed tube 142 of the feed assembly 14.
In one embodiment of the present invention, the feeding assembly 14 comprises a motor, a hopper 141, a feeding pipe 142 and a packing auger 143, wherein the feeding pipe 142 is connected below the hopper 141, the packing auger 143 is arranged in the feeding pipe 142, the feeding pipe 142 is fixed on the side wall of the shell 11, and a discharging hole 142a is arranged at the part of the feeding pipe 142 positioned in the shell 11;
one end of the auger 143 is connected with the motor, and the other end is connected with the universal joint 15, and the periphery of the auger 143 is provided with a spiral blade 143a, and the spiral blade 143a is used for smashing biomass.
In this embodiment, the screw 143 ensures that the biomass is crushed during the process of entering the housing 11 from the hopper 141.
Note that, the feeding pipe 142 shown in fig. 1 is disposed in parallel with respect to the horizontal plane, and the feeding pipe 142 shown in fig. 5 is disposed obliquely with respect to the horizontal plane, and the embodiment of the present invention does not specifically limit the manner of disposing the feeding pipe 142, that is, may be disposed in parallel with respect to the horizontal plane or disposed obliquely with respect to the horizontal plane. While when the feed pipe 142 is arranged in parallel with respect to the horizontal plane, the auger 143 may still be connected to the helical stirring element 12 by means of the universal joint 15.
Referring to fig. 2 and 3, in one embodiment of the present invention, the pyrolysis apparatus 1 further includes a fixing member 16 (it should be noted that the fixing member 16 is not shown in fig. 1), the fixing member 16 is fixed on the inner wall of the housing 11, and the fixing member 16 is fixed to the universal joint 15.
In this embodiment, in order to ensure the stability of the universal joint 15, a fixing member 16 may be provided to establish a fixed relationship between the universal joint 15 and the housing 11, that is, a middle portion of the fixing member 16 is fixed to the universal joint 15, and both ends are fixed to the side wall of the housing 11.
In one embodiment of the present invention, a baffle 123 is further disposed at the edge of the spiral surface 121, and the baffle 123 is used to cooperate with the spiral surface 121 to drive ash and molten salt after biomass pyrolysis to move upwards.
In this embodiment, by providing the baffle 123, it is beneficial to cooperate with the spiral surface 121 to drive the ash and molten salt after biomass pyrolysis to move upwards, so that the rate of separating the ash and molten salt is improved. If the baffle 123 is not provided, molten salt and slag may leak down from the gap between the helicoid 121 and the inner wall of the housing 11, whereby it is known that the absence of the baffle 123 is disadvantageous in driving slag and molten salt upward.
With continued reference to fig. 1, in one embodiment of the present invention, a detachable sealing cover 111 is provided on the top of the housing 11, and the sealing cover 111 is provided with an air outlet 112, and the air outlet 112 is used to discharge generated pyrolysis gas out of the housing 11.
In this embodiment, by providing the sealing cover 111 and providing the air outlet 112 on the sealing cover 111, the generated pyrolysis gas is facilitated to be subjected to subsequent processing.
With continued reference to fig. 1, in one embodiment of the invention, the bottom of the housing 11 is provided with a salt outlet 113, the salt outlet 113 being used to remove the pyrolysed molten salt from the housing 11.
In this embodiment, by providing the salt outlet 113, the molten salt that has been pyrolyzed and separated from ash is advantageously recycled, so as to further remove impurities and form new reusable molten salt.
How to utilize pyrolysis gas generated by pyrolysis is described below.
Referring to fig. 5, an embodiment of the present invention further provides a thermoelectric integrated processing system, where the system includes a pyrolysis device 1, an air path subsystem 2, a water path subsystem 3, and a cultivation greenhouse (not shown in the figure), the pyrolysis device 1 is connected with the air path subsystem 2, an air outlet at the end of the air path subsystem 2 is located inside the cultivation greenhouse, the water path subsystem 3 includes a heat dissipation component 31, the heat dissipation component 31 is located inside the cultivation greenhouse, and nostoc sphaeroids kutz is planted in the cultivation greenhouse;
the pyrolysis device 1 is used for pyrolyzing biomass to obtain first pyrolysis gas; wherein the first pyrolysis gas comprises carbon monoxide, carbon dioxide, hydrogen, water vapor, methane and tar in a gaseous state;
the gas path subsystem 2 is used for converting the first pyrolysis gas into carbon dioxide so as to send the carbon dioxide into the cultivation greenhouse through the tail end gas outlet; wherein the first pyrolysis gas releases heat during conversion to carbon dioxide;
a water subsystem 3 for absorbing heat released by the first pyrolysis gas in the process of being converted into carbon dioxide to release the absorbed heat into the cultivation greenhouse through the heat radiation assembly 31;
the pyrolysis device 1 is a pyrolysis device 1 provided in any one of the embodiments described above.
In this embodiment, the gas other than carbon dioxide in the first pyrolysis gas can be removed by arranging the gas subsystem 2, the heat released by the first pyrolysis gas in the process of converting into carbon dioxide can be absorbed by arranging the water subsystem 3, the nostoc sphaeroids kutz is planted in the cultivation greenhouse, and the carbon dioxide gas collected by the gas subsystem 2 and the heat absorbed by the water subsystem 3 are released into the cultivation greenhouse, so that the nostoc sphaeroids kutz is ensured to have proper growth temperature and carbon dioxide concentration, and the yield of nostoc sphaeroids kutz is improved.
The nostoc sphaeroids kutz is used as a high-end food material rich in various nutrients such as amino acids, biological acids and the like, and has high nutritive value and economic value. However, nostoc sphaeroids kutz has very strict requirements on the growth environment, and the growth yield in the natural environment is low, so that the current cultivation market of nostoc sphaeroids kutz has a smaller scale. Through the technical scheme, the biomass can be effectively treated by the pyrolysis device 1, and pyrolysis gas generated by biomass pyrolysis can be utilized by the gas circuit subsystem 2 and the water circuit subsystem 3, so that cultivation of nostoc sphaeroids kutz is further facilitated, and the economic value is higher.
In addition, the nostoc sphaeroids kutz has strong carbon dioxide absorption capacity, and the inventor just notices the characteristic, and chooses to fix carbon in biomass by using the nostoc sphaeroids kutz, so that the near zero emission of carbon is realized, and the environmental advantage is remarkable. The nostoc sphaeroids kutz has high nutritive value and is difficult to cultivate, so that the market selling price is high and can reach 300 yuan/jin, and carbon dioxide, electric energy and heat energy generated by the system can be used for cultivating the nostoc sphaeroids kutz to increase the yield, so that the nostoc sphaeroids kutz has high economic benefit.
In one embodiment of the invention, the gas path subsystem 2 comprises a first heat exchange device 21, a fuel cell 22 and a gas storage tank 23 which are sequentially connected, wherein the first heat exchange device 21 is connected with the pyrolysis device 1, and the gas storage tank 23 is connected with a tail end gas outlet;
the first heat exchange device 21 is used for exchanging heat with the waterway subsystem 3 to remove water vapor and tar in a gaseous state in the first pyrolysis gas and obtain a second pyrolysis gas; wherein the second pyrolysis gas comprises carbon monoxide, carbon dioxide, hydrogen, and methane;
a fuel cell 22 for generating electric power using the second pyrolysis gas and air, and obtaining a gaseous product; wherein the gaseous products comprise carbon dioxide and water vapor;
a gas storage tank 23 for storing carbon dioxide in the gaseous product.
In this embodiment, since the first pyrolysis gas contains more carbon monoxide, hydrogen and methane, the gases can be effectively utilized, i.e. reacted with the introduced oxygen to generate electric energy (the chemical reaction occurring in the fuel cell 22 is not described here, which is well known to those skilled in the art); furthermore, by providing the first heat exchanging device 21, most of the heat of the first pyrolysis gas can be absorbed to remove water vapor and tar in a gaseous state in the first pyrolysis gas.
It should be noted that, the first heat exchange device 21 may remove only a part of the water vapor in the first pyrolysis gas, but the remaining water vapor does not affect the chemical reaction in the fuel cell 22, so it is not concerned here whether the first heat exchange device 21 removes the water vapor in the first pyrolysis gas. However, it is considered that the first heat exchange device 21 can remove the tar in the gaseous state in the first pyrolysis gas by absorbing most of the heat of the first pyrolysis gas.
In one embodiment of the present invention, the air path subsystem 2 further includes a second heat exchange device 24 and a dryer 25 that are connected to each other, the second heat exchange device 24 is further connected to the fuel cell 22, and the dryer 25 is further connected to the air tank 23;
a second heat exchange device 24 for exchanging heat with the waterway subsystem 3 to remove part of the water vapor in the gaseous product;
a dryer 25 for removing residual water vapor from the gaseous product.
In the present embodiment, since the temperature of the gaseous product discharged from the fuel cell 22 is high, most of the heat of the gaseous product can be absorbed by providing the second heat exchanging device 24 to remove part of the water vapor in the gaseous product; in order to completely remove the residual water vapor in the gaseous product, a dryer 25 may be provided (details of the type and principle of the dryer 25 are not repeated herein), so that the gas discharged from the dryer 25 is pure carbon dioxide gas and is stored in the gas tank 23 by pressurization.
In one embodiment of the present invention, the thermoelectric integrated processing system further includes a control device (not shown in the figure), a light supplementing lamp (not shown in the figure), and an illumination intensity sensor (not shown in the figure) that operate by using the electric energy generated by the fuel cell 22, wherein the control device is electrically connected to the light supplementing lamp and the illumination intensity sensor, respectively, and the light supplementing lamp and the illumination intensity sensor are both located inside the cultivation greenhouse;
the illumination intensity sensor is used for detecting illumination intensity in the cultivation greenhouse, and the control device is used for controlling the luminous power of the light supplementing lamp according to the illumination intensity so as to provide preset illumination intensity for nostoc sphaeroids kutz.
In this embodiment, in order to increase the yield of nostoc sphaeroids kutz, a light-compensating lamp may be disposed in the cultivation greenhouse, so that the cultivation greenhouse is at an illumination intensity corresponding to the high yield of nostoc sphaeroids kutz; in order to realize automatic control of illumination intensity in the cultivation greenhouse, a control device and an illumination intensity sensor can be arranged; and the electrical energy utilized by these electronic components may be electrical energy generated by the fuel cell 22.
In one embodiment of the present invention, the thermoelectric integrated processing system further includes a control device (not shown in the figure), a temperature adjusting device (not shown in the figure), and a temperature sensor (not shown in the figure) that operate by using the electric energy generated by the fuel cell 22, wherein the control device is electrically connected to the temperature adjusting device and the temperature sensor, and the temperature adjusting device and the temperature sensor are both located inside the cultivation greenhouse;
the temperature sensor is used for detecting the temperature in the cultivation greenhouse, and the control device is used for controlling the temperature adjusting device to work according to the temperature so that the temperature in the cultivation greenhouse is in a preset temperature range.
In this embodiment, in order to increase the yield of nostoc, a temperature adjusting device may be disposed in the cultivation greenhouse, so that the cultivation greenhouse is at a temperature (for example, 25 ℃ to 27 ℃) corresponding to the high yield of nostoc; in order to realize the automatic control of the temperature in the cultivation greenhouse, a control device and a temperature sensor can be arranged; and the electrical energy utilized by these electronic components may be electrical energy generated by the fuel cell 22.
In some embodiments, the temperature regulating device may be an air conditioner or other refrigeration/heating apparatus, and the specific type of temperature regulating device is not limited herein.
In one embodiment of the present invention, the thermoelectric integrated treatment system further includes a domestic water pipeline 32 connected to the waterway subsystem 3, and the domestic water pipeline 32 is located in front of the heat dissipation assembly 31 along the water flowing direction;
in autumn and winter, the domestic water pipeline 32 is closed, and the waterway subsystem 3 is a closed system so as to release the absorbed heat into the cultivation greenhouse through the heat dissipation component 31;
in the spring and summer, the domestic water pipe 32 is opened, and the waterway subsystem 3 is an open system to supply the absorbed heat to the user side through the domestic water pipe 32.
In this embodiment, since the environment outside the autumn and winter season is cold, the heat absorbed by the waterway subsystem 3 needs to be completely supplied to the cultivation greenhouse, and thus the domestic water pipeline 32 needs to be closed; if the temperature of the cultivation greenhouse still does not reach the preset temperature range, the temperature in the cultivation greenhouse needs to be increased by utilizing the temperature adjusting device. Because the environment outside the spring and summer is hotter, the temperature in the cultivation greenhouse can reach the preset temperature range easily, so the domestic water pipeline 32 can be opened (of course, the opening time or the opening valve degree of the domestic water pipeline 32 can be adjusted according to the temperature in the cultivation greenhouse); if the temperature of the cultivation greenhouse exceeds a preset temperature range depending on the external environment, a temperature adjusting device is needed to reduce the temperature in the cultivation greenhouse.
In one embodiment of the present invention, the thermoelectric integrated processing system further comprises a control device (not shown in the figure), an electromagnetic valve 231 and a carbon dioxide concentration detector (not shown in the figure) which are operated by using the electric energy generated by the fuel cell 22, wherein the control device is respectively electrically connected with the electromagnetic valve 231 and the carbon dioxide concentration detector, the electromagnetic valve 231 is positioned between the air storage tank 23 and the tail end air outlet, and the carbon dioxide concentration detector is positioned inside the cultivation greenhouse;
the carbon dioxide concentration detector is used for detecting the carbon dioxide concentration in the cultivation greenhouse, and the control device is used for controlling the opening of the electromagnetic valve 231 according to the carbon dioxide concentration so that the carbon dioxide concentration in the cultivation greenhouse is in a preset concentration range.
In this embodiment, in order to increase the yield of nostoc, an electromagnetic valve 231 may be disposed between the air storage tank 23 and the air outlet at the end, so that the cultivation greenhouse is at a carbon dioxide concentration (for example, 1500 ppm) corresponding to the high yield of nostoc; in order to realize the automatic control of the temperature in the cultivation greenhouse, a control device and a carbon dioxide concentration detector can be arranged; and the electrical energy utilized by these electronic components may be electrical energy generated by the fuel cell 22.
It should be noted that, compared with the natural environment, the preset illumination intensity, the preset temperature range and the preset carbon dioxide concentration have remarkable yield increasing effect on nostoc sphaeroids kutz, and the experimental result shows that the yield is increased by nearly 5 times compared with the natural environment.
It is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article or apparatus that comprises the element.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (5)
1. A pyrolysis apparatus, characterized in that the pyrolysis apparatus is vertically disposed, comprising:
a housing (11) containing biomass and molten salt;
a spiral stirring member (12) rotatably disposed in the housing (11), the spiral stirring member (12) having a spiral surface (121), the spiral surface (121) being uniformly provided with a plurality of ventilation holes (122), the ventilation holes (122) being for providing a passage for upward movement of pyrolysis gas generated by pyrolysis of the biomass by the molten salt;
as the helical agitator (12) rotates one of clockwise or counter-clockwise, the biomass gradually moves downwardly under the compression of the helicoid (121) to make full contact with the molten salt;
the device also comprises a filter screen (13), wherein the filter screen (13) is arranged on the inner wall of the shell (11);
when the fused salt is utilized to complete the pyrolysis of the biomass, the spiral stirring piece (12) rotates clockwise or anticlockwise so as to drive ash residues and the fused salt after the pyrolysis of the biomass to move upwards to the filter screen (13) by utilizing the spiral surface (121), so that the fused salt is recycled in the shell (11);
the filter screen (13) is used for blocking the ash and filtering the molten salt;
further comprises:
-a feeding assembly (14) fixed to a side wall of the housing (11), the feeding assembly (14) being adapted to feed the biomass into the housing (11);
the universal joint (15) is respectively connected with the feeding assembly (14) and the spiral stirring piece (12), and the spiral stirring piece (12) is rotated by the transmission of the universal joint (15) under the driving of the feeding assembly (14);
the filter screen (13) is provided with a mounting gap (131), and the mounting gap (131) is used for avoiding interference between the filter screen (13) and the feeding assembly (14) when the filter screen (13) is mounted on the inner wall of the shell (11);
the edge of the spiral surface (121) is also provided with a baffle (123), and the baffle (123) is used for being matched with the spiral surface (121) so as to drive ash residues after biomass pyrolysis and molten salt to move upwards.
2. The pyrolysis apparatus according to claim 1, wherein the feeding assembly (14) comprises a motor, a hopper (141), a feeding pipe (142) and an auger (143), the feeding pipe (142) is connected below the hopper (141), the auger (143) is arranged in the feeding pipe (142), the feeding pipe (142) is fixed on the side wall of the housing (11), and a discharge port (142 a) is arranged at the part of the feeding pipe (142) located in the housing (11);
one end of the auger (143) is connected with the motor, the other end of the auger is connected with the universal joint (15), a spiral blade (143 a) is arranged on the periphery of the auger (143), and the spiral blade (143 a) is used for smashing biomass.
3. Pyrolysis apparatus according to claim 1, further comprising a fixing member (16), the fixing member (16) being fixed to an inner wall of the housing (11), the fixing member (16) being fixed to the universal joint (15).
4. A pyrolysis apparatus according to any one of claims 1-3, wherein the top of the housing (11) is provided with a detachable sealing cover (111), the sealing cover (111) being provided with an air outlet (112), the air outlet (112) being for discharging generated pyrolysis gas out of the housing (11).
5. A pyrolysis apparatus according to any one of claims 1-3, characterized in that the bottom of the housing (11) is provided with a salt outlet (113), the salt outlet (113) being used for discharging the pyrolysed molten salt out of the housing (11).
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| EP3093271A1 (en) * | 2014-01-06 | 2016-11-16 | Zhongying Changjiang International New Energy Investment Co., Ltd | Apparatus and method for increasing biomass pyrolysis and gas production speed and obtaining nano-scale silica material |
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| CL2009001034A1 (en) * | 2009-04-30 | 2009-12-04 | Univ Concepcion | Equipment and process for producing bio-fuel by means of rapid pyrolysis of organic material comprising a system of three reactors of fluidized bed in series, lower combustion reactor, intermediate of rapid pyrolysis and superior preheating, in addition to a pneumatic material recirculation system particulate |
| CN102160505A (en) * | 2011-03-10 | 2011-08-24 | 武汉凯迪工程技术研究总院有限公司 | Method and system for providing carbon dioxide and heat for greenhouse |
| CN210635941U (en) * | 2019-09-26 | 2020-05-29 | 李锋 | Spiral pyrolysis device |
| CN112430469B (en) * | 2020-10-19 | 2021-09-10 | 天津理工大学 | Greenhouse heat supply and carbon dioxide collecting system based on biomass pyrolysis technology |
| CN113372935A (en) * | 2021-07-15 | 2021-09-10 | 浙江工业大学 | Process and device for electrolyzing and strengthening fused salt to thermally crack biomass |
| CN114874814A (en) * | 2022-05-17 | 2022-08-09 | 西安交通大学 | Biomass pyrolysis gasification device and method based on alkali metal molten salt |
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| EP3093271A1 (en) * | 2014-01-06 | 2016-11-16 | Zhongying Changjiang International New Energy Investment Co., Ltd | Apparatus and method for increasing biomass pyrolysis and gas production speed and obtaining nano-scale silica material |
Non-Patent Citations (1)
| Title |
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| 熔融碱热解生物质制氢;沈琦;何咏涛;姬登祥;艾宁;计建炳;;化工进展(S1);198-202 * |
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