CN209685690U - A kind of stacked pyrolysis reaction device of high thermal conversion rate - Google Patents
A kind of stacked pyrolysis reaction device of high thermal conversion rate Download PDFInfo
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- CN209685690U CN209685690U CN201920309419.3U CN201920309419U CN209685690U CN 209685690 U CN209685690 U CN 209685690U CN 201920309419 U CN201920309419 U CN 201920309419U CN 209685690 U CN209685690 U CN 209685690U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model discloses a kind of stacked pyrolysis reaction devices of high thermal conversion rate, including the feeding bin being arranged from top to bottom, first order reaction kettle, second order reaction kettle, third-order reaction kettle and hollow screw conveyer, it is connected between feeding bin and first order reaction kettle by the first auger conveyor, it is connected between first order reaction kettle and second order reaction kettle by the second auger conveyor, it third-order reaction kettle upper end opening and is connect with second order reaction kettle lower part, first discharge port in second order reaction bottom portion is inside third-order reaction kettle, hollow screw conveyer is connected with second level heating source, the both ends of hollow screw conveyer are on the outside of third-order reaction kettle, one end of hollow screw conveyer is provided with the second discharge port and gas outlet, the other end of hollow screw conveyer connects the pipeline that has surplus heat, waste heat pipeline is connect with the bottom of first order reaction kettle.The utility model solves the problems, such as that heat scission reaction realizes that continous way batch production and thermal losses are more, at high cost by multistage heating method.
Description
Technical field
The utility model relates to a kind of pyrolysis reaction device more particularly to a kind of stacked thermal crackings of high thermal conversion rate
Reaction unit.
Background technique
Biomass refers to the various organisms formed by photosynthesis, including all animals and plants and microorganism.It is right
Heat scission reaction can be carried out in biomass castoff such as stalk, rice husk, sawdust, is recombinated after hydrocarbon is decomposed, it will be high
Boiling point, giant molecule organic substance cracking or be decomposed into the high prices substances such as more low molecular substance such as light oil and diesel oil.It is existing
Pyrolysis reaction device be single reaction kettle, it is necessary to biomass castoff is heated to the completions such as 550 DEG C~600 DEG C of ability and is split
Solution, and single reaction kettle thermal losses is larger.Therefore it is needed in the existing heat scission reaction using traditional pyrolysis reaction device
The energy wanted is more, and thermal conversion rate is lower, and economic cost greatly increases.
Utility model content
To solve above-mentioned technological deficiency, the utility model proposes a kind of stacked heat scission reaction of high thermal conversion rate dresses
It sets, solves heat scission reaction by multistage heating device and realize that continous way batch production and thermal losses are more, at high cost
The problem of.
In order to achieve the above object, the technical solution of the utility model is as follows: a kind of stacked hot tearing of high thermal conversion rate
Reaction unit is solved, including feeding bin, first order reaction kettle, second order reaction kettle, third-order reaction kettle and the hollow spiral shell being arranged from top to bottom
Conveyer is revolved, is connected between the feeding bin and first order reaction kettle by the first auger conveyor, the first order reaction kettle and two
It being connected between order reaction kettle by the second auger conveyor, second order reaction bottom portion is provided with the first discharge port, and described three
It order reaction kettle upper end opening and is connect with second order reaction kettle lower part, first discharge port is in the third-order reaction kettle
Portion, the hollow screw conveyer run through the kettle body of the third-order reaction kettle, and the hollow screw conveyer is connected with second level and adds
Heat source, on the outside of third-order reaction kettle, one end of the hollow screw conveyer is provided at the both ends of the hollow screw conveyer
The other end of second discharge port and gas outlet, the hollow screw conveyer connects the pipeline that has surplus heat, the waste heat pipeline and one
The bottom of order reaction kettle connects.
Preferably, being feed inlet at the top of the feeding bin, the feeding bin is connected with level-one ball at gating location
Valve.
Preferably, first auger conveyor is provided with second level ball valve between feeding bin and second order reaction kettle.
Preferably, the both ends of the hollow screw conveyer are respectively connected with bearing block flange, the bearing block flange connects
It is connected to axle envelope flange, graphite packing is connected on the bearing block flange.
Preferably, being provided with agitating roller and blanking revolving fragment in the second order reaction kettle.
Preferably, second auger conveyor, hollow screw conveyer and the first auger conveyor are that level is set
The auger conveyor set, region of second auger conveyor in first order reaction kettle are provided with the pyrolysis blanking of opening upwards
Mouthful, region of the hollow screw conveyer in second order reaction kettle is provided with the second level feed opening of opening upwards, and described first
Region of the auger conveyor in feeding bin is provided with the level-one feed opening of opening upwards, and level-one feed opening two sides are provided with
The two sides of inclined level-one butterfly plate, the pyrolysis feed opening are provided with inclined second level butterfly plate, the second level feed opening two
Side is provided with inclined three-level butterfly plate.
Preferably, being connected with level-one heating source on the plate body of the three-level butterfly plate two sides.
Preferably, the second order reaction kettle and third-order reaction kettle outer sheath are equipped with cracking insulating layer.
Preferably, being arranged with vacuum heat-preserving cover on the waste heat pipeline.
Preferably, the second level heating source is burner, after the flame of the burner heats hollow screw conveyer
Waste heat is transmitted to heating first order reaction kettle by waste heat pipeline.
The utility model has the beneficial effects that the stacked heat scission reaction of high thermal conversion rate provided by the utility model fills
It sets, thermal conversion rate is higher, and heat loss is lower, and thermal energy required for heating is less, to reduce costs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of second auger conveyor of the utility model；
Fig. 3 is the structural schematic diagram of the hollow screw conveyer of the utility model；
Wherein: 1. first order reaction kettles, 2. second order reaction kettles, 3. third-order reaction kettles, 4. second auger conveyors, 5. hollow spiral shells
Revolve conveyer, 6. waste heat pipelines, 7. feed inlets, 8. level-one ball valves, 9. pyrolysis feed openings, 10. level-one butterfly plates, 11. second level balls
Valve, 12. agitating rollers, 13. first discharge ports, 14. cracking insulating layers, 15. gas outlets, 16. level-one heating sources, 17. second level blankings
Mouthful, 18. vacuum heat-preserving covers, 19. bearing block flanges, 20. axle envelope flanges, 21. graphite packings, 22. second discharge ports, 23. feedings
Storehouse, 24. first auger conveyors, 25. level-one feed openings, 26. second level heating sources, 27. second level butterfly plates, 28. three-level butterfly plates,
29. being pyrolyzed insulating layer, 30. blanking revolving fragments.
Specific embodiment
The utility model is described in further detail With reference to embodiment.
In the description of the present invention, it should be noted that term " in ", "upper", "lower", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
State the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second "
It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in Figure 1 to Figure 3, a kind of stacked pyrolysis reaction device of high thermal conversion rate is present embodiments provided, is wrapped
Include the feeding bin 23 being arranged from top to bottom, first order reaction kettle 1, second order reaction kettle 2, third-order reaction kettle 3 and hollow screw conveyer
5.The effect of feeding bin 23 is charging, due to being provided with feeding bin 23, convenient for controlling the Negative Pressure Difference between first order reaction kettle 1,
Explosion caused by can preventing the gas of reaction system from flowing backward.First order reaction kettle 1 is the conversion zone of first segment reaction, and second level is anti-
Answering kettle 2 is the conversion zone of second segment reaction, and third-order reaction kettle 3 is the conversion zone of third section reaction.
It is feed inlet 7 at the top of feeding bin 23, biomass material enters feeding bin 23 from there.Feeding bin 23 is in feed inlet 7
It is connected with level-one ball valve 8 at position, controls whether feed inlet 7 can feed by level-one ball valve 8.
It is connected between feeding bin 23 and first order reaction kettle 1 by the first auger conveyor 24.First auger conveyor 24 is
Horizontally disposed auger conveyor, effect is to convey the material of feeding bin 23 into first order reaction kettle 1.First helical feed
The middle part of device 24 is inside feeding bin 23, and the both ends of the first auger conveyor 24 are outside first order reaction kettle 1.
First auger conveyor 24 is elbow, lower end and the first order reaction kettle 1 of elbow close to one end of first order reaction kettle 1
Top connection, and communicated with the inside of first order reaction kettle 1.First auger conveyor 24 feeding bin 23 and first order reaction kettle 1 it
Between be provided with second level ball valve 11, second level ball valve 11 is mounted on elbow.
Level-one ball valve 8 and the corresponding interlocking of second level ball valve 11, second level ball valve 11 can only close air extractor pair in level-one ball valve 8
It is opened in the state of after warehouse inside progress vacuumize process；When ensuring that each second level ball valve 11 is opened, it is similarly in warehouse
Vacuum state, biomass are not influenced the vacuum environment of reaction kettle itself by the process that warehouse is transferred to reaction kettle.
First auger conveyor 24 is in the level-one feed opening 25 for being provided with opening upwards into the region in grade feed bin 23, level-one
The shape of feed opening 25 is rectangle, and effect is that the material for making feeding bin 1 to be transported imports in the first auger conveyor 24.One
The long side of the two sides of grade feed opening 25 is connected with the level-one butterfly plate 10 being obliquely installed.The region of two level-one butterfly plates 10 composition
Upside area is big, and area is gradually reduced when extending downwardly, and effect is gathered material at 25 position of level-one feed opening.
It is connected between first order reaction kettle 1 and second order reaction kettle 2 by the second auger conveyor 4.Second auger conveyor 4 is
Horizontally disposed auger conveyor, effect is to convey the material of first order reaction kettle 1 into second order reaction kettle 2.Second spiral
The middle part of conveyer 4 is inside first order reaction kettle 1, and the both ends of the second auger conveyor 4 are outside first order reaction kettle 1.Second spiral shell
Rotation conveyer 4 is that elbow is connect with one end of second order reaction kettle 2, and the lower end of elbow is connect with the top of second order reaction kettle 2, and with
The inside of second order reaction kettle 2 communicates.
Region of second auger conveyor 4 in first order reaction kettle 1 is provided with the pyrolysis feed opening 9 of opening upwards, pyrolysis
The shape of feed opening 9 is rectangle, and effect is that the material to be transported of first order reaction kettle 1 imports in the second auger conveyor 4.
The long side for being pyrolyzed the two sides of feed opening 9 is connected with the second level butterfly plate 27 being obliquely installed.The area of two second level butterfly plates 27 composition
Area is big on the upside of domain, and area is gradually reduced when extending downwardly, and effect is gathered material at pyrolysis 9 position of feed opening.
Agitating roller 12 and blanking revolving fragment 30 are provided in second order reaction kettle 2.The lower part of second order reaction kettle 2 is infundibulate,
Its bottom is provided with the first discharge port 13.
It side opening and is connect with 2 lower part of second order reaction kettle on third-order reaction kettle 3.First discharge port 13 is in third-order reaction kettle 3
It is internal.Hollow screw conveyer 5 is horizontally disposed auger conveyor, and effect is to transport out the charcoal after reaction,
And the gas of reaction is given off.Hollow screw conveyer 5 runs through the kettle body of third-order reaction kettle 3, and middle part is in third-order reaction kettle 3
Interior, both ends are in 3 outside of third-order reaction kettle.The both ends of hollow screw conveyer 5 are respectively connected with bearing block flange 19, bearing block flange
19 are connected with axle envelope flange 20, and graphite packing 21 is connected on bearing block flange 19.One end of hollow screw conveyer 5 is provided with
Second discharge port 22 and gas outlet 15.The other end of hollow screw conveyer 5 connects have surplus heat pipeline 6, waste heat pipeline 6 and level-one
The bottom of reaction kettle 1 connects.The outer blade of the flight of hollow screw conveyer 5 in 22 position Opposite direction connection of the second discharge port,
The counter motion at the second discharge port 22, excludes layer of charcoal sufficiently.
Region of the hollow screw conveyer 5 in second order reaction kettle 2 is provided with the second level feed opening 17 of opening upwards, reaction
The slave second level feed opening 17 of product enters in hollow screw conveyer 5 afterwards.The shape of second level feed opening 17 is rectangle.Under second level
The long side of the two sides of material mouth 17 is connected with the three-level butterfly plate 28 being obliquely installed.On the upside of the region that two three-level butterfly plates 28 form
Area is big, and area is gradually reduced when extending downwardly, and effect is gathered material at 17 position of second level feed opening.First discharging
Mouth 13 is at the top of three-level butterfly plate 28.The hollow space of hollow screw conveyer 5 is equipped with second level heating source 26.Three-level butterfly
Level-one heating source 16 is connected on the plate body of plate 28.
Second order reaction kettle 2 and 3 outer sheath of third-order reaction kettle are equipped with cracking insulating layer 14.Vacuum is arranged on waste heat pipeline 6
Insulation cover 18 is arranged with pyrolysis insulating layer 29 on first order reaction kettle 1.
Feeding bin 23 is vacuumized by vacuum machine connected to it, and hollow screw conveyer 5 passes through compression connected to it
Machine is evacuated (not shown).
Level-one butterfly plate 10 and second level butterfly plate 27 control its flexible stroke by hydraulic stem, realize different angle, no
The movement of same speed, different torque, different frequency has to reach to material broken arch/loose and guides to smooth fall into helical feed
The purpose of the rectangle feeding inlet of device.Three-level butterfly plate 28 does not have mechanical action, is the high temperature heat source spoke by level-one heating source 16
It penetrates and is transferred to surface of material and successively gos deep into material center again, realization, which is brought rapidly up heating to material and reaches temperature, releases biomass
Fugitive constituent simultaneously gradually carbonizes.
The working principle of the stacked pyrolysis reaction device of the thermal conversion rate are as follows:
It is first shut off level-one ball valve 8 and second level ball valve 11, vacuumize process is carried out to whole equipment.
Open the second level heating source 26 on level-one heating source 16 and hollow screw conveyer 5.
Level-one ball valve 8 is opened, second level ball valve 11 is closed, biomass material is sent into feeding bin 23 from from level-one ball valve 8,
Biomass material should carry out break process in advance, and partial size is kept to be less than 3mm.After feeding bin 23 fills raw material, level-one ball is closed
Valve 8 carries out vacuumize process to feeding bin 23.Second level ball valve 11 and the first auger conveyor 24 are opened, biomass material passes through
First auger conveyor 24, which enters, carries out first segment reaction in first order reaction kettle 1.
Then the second auger conveyor 4 is opened, the second auger conveyor 4 will be by passing through first segment in first order reaction kettle 1
The material of reaction is transported into second order reaction kettle 2.
Raw material carries out second segment reaction after falling into second order reaction kettle 2, while agitating roller 12 remains Stirring state.
The origin of heat of second segment reaction is to seep from the heat of level-one heating source 16 and the generation of second level heating source 26 in third-order reaction kettle 3
The waste heat of second order reaction kettle 2 is arrived thoroughly.
Material is fallen into third-order reaction kettle 3 from the first discharge port 13, and level-one heating source 16 is transferred heat in third-order reaction
Three-level butterfly plate 28 in kettle 3, three-level butterfly plate 28 and second level heating source 26 in third-order reaction kettle 3 persistently give material heating,
Carry out the reaction of third section.
The charcoal substratess material for completing the reaction of third section is fallen into hollow screw conveyer 5, forms layer of charcoal.Positioned at hollow spiral shell
It revolves the second level heating source 26 in conveyer 5 and heats layer of charcoal to 1050 DEG C or more.Compression extraction air, first order reaction kettle 1, second order reaction
Gas in kettle 2 and third-order reaction kettle 3 is flowed along the layer of charcoal of hollow screw conveyer 5 and its inside to gas outlet 15, gas
Second pyrolysis occurs in layer of charcoal.
Second level heating source 26 in hollow screw conveyer 5 is burner, the flame heating hollow screw conveying of burner
Less than 400 degrees Celsius, residual heat air current is discharged in first order reaction kettle 1 waste heat being discharged after device from waste heat pipeline 6, heats first order reaction
Kettle 1.
It should be noted that needing to keep the air pressure in feeding bin 23 anti-slightly larger than level-one before opening second level ball valve 11
The air pressure in kettle 2 is answered, the fuel gas in first order reaction kettle 2 is avoided to enter feeding bin 23.
First segment reaction in first order reaction kettle 1 is the water smoking, and temperature is -150 DEG C of room temperature, is only occurred in this stage
Physical change is mainly dried out.
Second segment reaction in second order reaction kettle 2 is the thermal cracking stage, and temperature is 100-400 DEG C, biological in this stage
Matter is thermally decomposed under anoxic conditions, and with the continuous raising of temperature, various volatile substances are accordingly precipitated, and raw material occurs most of
Mass loss, although material reaches ignition point, but cannot be burnt due to anoxic, and there can be no gas phase flames.
The third section reaction of third-order reaction kettle 3 is carbonization stage, and temperature is greater than 400 DEG C, the decomposition occurred in this stage
Very slowly, the mass loss of generation is more much smaller than second stage, which is that the further cracking of c h bond and C-C key is made
At, with the diffusion of deep layer volatile matter outer layers, ultimately form charcoal.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases
The technical field of pass, is also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of stacked pyrolysis reaction device of high thermal conversion rate, which is characterized in that including the feeding being arranged from top to bottom
Storehouse (23), first order reaction kettle (1), second order reaction kettle (2), third-order reaction kettle (3) and hollow screw conveyer (5), the feeding
It is connected between storehouse (23) and first order reaction kettle (1) by the first auger conveyor (24), the first order reaction kettle (1) and second level are anti-
It answers and is connected between kettle (2) by the second auger conveyor (4), second order reaction kettle (2) bottom is provided with the first discharge port
(13), it third-order reaction kettle (3) upper end opening and is connect with second order reaction kettle (2) lower part, first discharge port
(13) internal in the third-order reaction kettle (3), the hollow screw conveyer (5) runs through the kettle body of the third-order reaction kettle (3),
The hollow screw conveyer (5) is connected with second level heating source (26), and the both ends of the hollow screw conveyer (5) are anti-in three-level
It answers on the outside of kettle (3), one end of the hollow screw conveyer (5) is provided with the second discharge port (22) and gas outlet (15), described
The other end connection of hollow screw conveyer (5) has surplus heat pipeline (6), the bottom of the waste heat pipeline (6) and first order reaction kettle (1)
Portion's connection.
2. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 1, which is characterized in that the feeding
It is feed inlet (7) that the feeding bin (23) is connected with level-one ball valve (8) at feed inlet (7) position at the top of storehouse (23).
3. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 2, which is characterized in that described first
Auger conveyor (24) is provided with second level ball valve (11) between feeding bin (23) and second order reaction kettle (2).
4. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 1, which is characterized in that described hollow
The both ends of auger conveyor (5) are respectively connected with bearing block flange (19), and the bearing block flange (19) is connected with axle envelope flange
(20), graphite packing (21) are connected on the bearing block flange (19).
5. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 1, which is characterized in that the second level
Agitating roller (12) and blanking revolving fragment (30) are provided in reaction kettle (2).
6. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 1, which is characterized in that described second
Auger conveyor (4), hollow screw conveyer (5) and the first auger conveyor (24) are horizontally disposed auger conveyor,
Region of second auger conveyor (4) in first order reaction kettle (1) is provided with the pyrolysis feed opening (9) of opening upwards, institute
The second level feed opening (17) that region of the hollow screw conveyer (5) in second order reaction kettle (2) is provided with opening upwards is stated, it is described
Region of first auger conveyor (24) in feeding bin (23) is provided with the level-one feed opening (25) of opening upwards, the level-one
Feed opening (25) two sides are provided with inclined level-one butterfly plate (10), and the two sides of pyrolysis feed opening (9) are provided with inclined
Second level butterfly plate (27), second level feed opening two sides are provided with inclined three-level butterfly plate (28).
7. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 6, which is characterized in that the three-level
Level-one heating source (16) are connected on the plate body of butterfly plate (28) two sides.
8. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 1, which is characterized in that the second level
Reaction kettle (2) and third-order reaction kettle (3) outer sheath are equipped with cracking insulating layer (14).
9. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 1, which is characterized in that the waste heat
Vacuum heat-preserving cover (18) are arranged on pipeline (6).
10. the stacked pyrolysis reaction device of high thermal conversion rate according to claim 1, which is characterized in that described two
Grade heating source (26) is burner, and waste heat passes through waste heat pipeline afterwards for flame heating hollow screw conveyer (5) of the burner
(6) it is transmitted to heating first order reaction kettle (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920309419.3U CN209685690U (en) | 2019-03-12 | 2019-03-12 | A kind of stacked pyrolysis reaction device of high thermal conversion rate |
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| CN201920309419.3U CN209685690U (en) | 2019-03-12 | 2019-03-12 | A kind of stacked pyrolysis reaction device of high thermal conversion rate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735355A (en) * | 2019-03-12 | 2019-05-10 | 德龙(肇庆)科技有限公司 | A kind of stacked pyrolysis reaction device of high thermal conversion rate |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735355A (en) * | 2019-03-12 | 2019-05-10 | 德龙(肇庆)科技有限公司 | A kind of stacked pyrolysis reaction device of high thermal conversion rate |
| CN109735355B (en) * | 2019-03-12 | 2024-04-16 | 德龙(肇庆)科技有限公司 | Laminated thermal cracking reaction device with high heat conversion rate |
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