CN220413261U - Chain type pyrolysis furnace based on microwave heating - Google Patents
Chain type pyrolysis furnace based on microwave heating Download PDFInfo
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- CN220413261U CN220413261U CN202321921503.3U CN202321921503U CN220413261U CN 220413261 U CN220413261 U CN 220413261U CN 202321921503 U CN202321921503 U CN 202321921503U CN 220413261 U CN220413261 U CN 220413261U
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 82
- 238000010438 heat treatment Methods 0.000 title claims abstract description 34
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 48
- 239000000919 ceramic Substances 0.000 claims abstract description 36
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 239000000571 coke Substances 0.000 claims abstract description 8
- -1 nano silver ions Chemical class 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 9
- 238000010008 shearing Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 27
- 238000007790 scraping Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Chemical group 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- 229910052739 hydrogen Inorganic materials 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to a garbage pyrolysis furnace technical field discloses a chain type pyrolysis furnace based on microwave heating, wherein two ceramic rotating shafts are arranged in a furnace chamber, ceramic rotating gears are arranged on the ceramic rotating shafts, a conveyor belt is arranged on the two ceramic rotating gears, a garbage feeding pipeline, a magnetron and a stirring fan are sequentially arranged above a furnace chamber shell from left to right, an outlet of the garbage feeding pipeline is arranged above the conveyor belt, a shear chain is arranged in the furnace chamber, and the magnetron is connected with a waveguide tube; the inner wall of the furnace chamber is coated with a layer of nano silver ions, and the outer shell of the furnace chamber is provided with a pyrolytic coke outlet. This application makes rubbish pass through on its chain conveyer belt through setting up chain conveying, and the microwave emission source transmission microwave on intracavity upper portion carries out pyrolysis to it, falls into the export at the conveyer belt end. This application can make rubbish rapid heating, be heated evenly and produce more pyrolysis gas, makes pyrolysis production as an organic whole simultaneously, has strengthened pyrolysis efficiency, has improved degree of automation.
Description
Technical Field
The utility model relates to the technical field of garbage pyrolysis furnaces, in particular to a chain type pyrolysis furnace based on microwave heating.
Background
Pyrolysis furnaces are important industrial equipment and have wide application in many industries such as garbage disposal, hydrogen production, gasification, gas purification and the like. The existing garbage pyrolysis furnaces are mainly divided into the following categories:
(1) fluidized bed furnace: the fluidized bed burns fully, the combustion control in the furnace is better, but the dust amount in the flue gas is large, the operation is complex, the running cost is higher, the requirement on the uniformity of the granularity of the fuel is higher, the quartz sand has serious abrasion to equipment, and the equipment maintenance amount is large.
(2) Mechanical grate incinerator: the material requirement and the machining precision requirement of the fire grate are high, and the contact surface between the fire grate and the fire grate is required to be quite smooth and the gaps between the rows are required to be quite small. In addition, the mechanical structure is complex, the damage rate is high, and the maintenance amount is large. The fire grate has high manufacturing cost and maintenance cost, so that the fire grate is difficult to popularize and apply.
(3) And (3) rotary kiln: the equipment utilization rate is high, the carbon content in ash is low, the surplus air quantity is low, and the emission of harmful gas is low. But the combustion is not easy to control, and the combustion is difficult when the heat value of the garbage is low.
(4) Gasification melting incinerator: the energy contained in the garbage can be utilized to the maximum extent, the consumption of auxiliary heat sources is low, the dioxin emission is low, the comprehensive recovery is high-efficiency, the volume and the decrement are reduced to the maximum extent, but the heat value of the household garbage is required to be higher than 6000kJ/kg, and the garbage classification requirement is high.
(5) Pulse throwing type grate incinerator: the emission control level is high, and the secondary flue gas reburning and advanced flue gas treatment equipment are adopted, so that the flue gas is fully treated. However, the incinerator is complicated in structure and high in cost.
(6) CAO incinerator: the garbage can be used for recycling useful substances in garbage, the incinerator is used for incinerating classified organic garbage, the heat quantity is high, more combustible gases such as carbon monoxide are generated, and the power generation quantity is high. But the requirements for garbage classification are high.
The microwave is an electromagnetic wave with the frequency of 300 MHz-300 GHZ, and has the characteristics of rapid heating, integral heating, selective heating, high efficiency heating and the like. Its wavelength is very short, and it has the property of visible light, and it propagates along a straight line. The microwave can reflect when encountering metal materials, can penetrate when encountering insulating materials such as glass, plastic, ceramic and the like, can be absorbed when encountering mediums such as protein, fat and the like containing moisture, and can change the electromagnetic energy of the microwave into heat energy. In view of this, the application proposes an integrated chain type microwave garbage pyrolyzer.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a chain type pyrolysis furnace based on microwave heating.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the chain type pyrolysis furnace based on microwave heating is characterized in that two ceramic rotating shafts are arranged in a furnace chamber, ceramic rotating gears are arranged on the ceramic rotating shafts, a conveyor belt is arranged on the two ceramic rotating gears, a garbage feeding pipeline, a magnetron and a stirring fan are sequentially arranged above a furnace chamber shell from left to right, an outlet of the garbage feeding pipeline is arranged above the conveyor belt, a cutter is arranged at an inlet end of the feeding pipe, a shearing chain is arranged in the furnace chamber and is arranged at an inlet end of the garbage feeding pipe and is parallel to the cutter to form a shearing opening for shearing garbage into small blocks, the magnetron is connected with a waveguide tube, the waveguide tube is arranged in the furnace chamber, and the stirring fan is arranged at an outlet of the waveguide tube; the inner wall of the furnace chamber is coated with a layer of nano silver ions; and a pyrolysis coke outlet is arranged at the position of the furnace chamber shell corresponding to the tail end of the conveyor belt.
Further, a scraping plate is arranged at the opening of the right lower end, and a gap of 8cm to 16cm is reserved between the scraping plate and the conveyor belt.
Preferably, a pyrolysis gas outlet pipeline is arranged on the furnace chamber shell, an air exhaust fan is arranged at the outlet of the pyrolysis gas outlet pipeline, and a post-treatment device is connected behind the air exhaust fan.
Further preferably, the garbage feeding pipe and the pyrolysis gas outlet pipeline adopt a sleeve structure, the joint adopts slips, and the pipe diameter of the garbage feeding pipeline is smaller than that of the pyrolysis gas outlet pipeline.
Further, the lower part of the pyrolysis gas outlet pipeline is provided with a bell mouth structure.
Preferably, the furnace chamber is made of stainless steel plates.
Further, the surface of the outer layer of the furnace chamber shell is wrapped with an insulation layer.
Further, the ceramic rotating shaft 1 is in threaded connection with the ceramic rotating gear.
Further, a support is arranged at the bottom of the furnace chamber shell, and the support and the ground are fixedly connected by adopting an anchor or a pin knot.
Compared with the prior art, the utility model has the following beneficial effects:
(1) This application makes rubbish slowly pass through on its chain conveyer belt through setting up the chain conveying of new increase, and microwave emission source transmission microwave on intracavity upper portion carries out pyrolysis to it, falls into the export at the conveyer belt end. The generated pyrolyzer and the like are discharged from an exhaust port at the upper right, tar is cooled by a cooling separation device, and combustible gas is collected. Can make rubbish rapid heating, be heated evenly and produce more pyrolysis gas, make pyrolysis simultaneously into integrated production, strengthened pyrolysis efficiency, improved degree of automation.
(2) The microwave heating furnace has the advantages that the magnetron is arranged, microwave heating is adopted in the furnace chamber, the problems that conventional pyrolysis is not uniform in heating, low in heating speed, low in conventional pyrolysis energy utilization rate, difficult in control of pyrolysis temperature and difficult in continuous heating are solved, the microwave pyrolysis energy utilization rate is high, the microwave heating furnace has the characteristics of rapid heating, integral heating and the like, can be used for better heating and controlling pyrolysis of garbage, can be used for realizing rapid control of temperature rise and fall, and is beneficial to automatic control of continuous production; and the quality of the conventional pyrolysis products is low, more coke and tar are produced, and the yield of pyrolysis gas produced by microwave pyrolysis is generally increased.
(3) The upper wall surface of the microwave oven chamber is provided with a microwave emission source, the inner wall surface is coated with a layer of nano silver ions, the microwave is reflected to reduce the loss of the microwave, the absorption rate of garbage to the microwave is improved, the pyrolysis is more uniform, and the efficiency is higher.
(4) The application is chain heating channel, treat the rubbish of pyrolysis and slowly pass through from the conveyer belt, microwave energy heating carries out pyrolysis to it, can continuity work, improves work efficiency.
(5) The stirring fan at the back wall of the furnace body not only can lead the microwaves to be uniformly reflected to the heated materials, but also can lead the generated blast pressure head to blow the pyrolysis gas to the inlet of the exhaust pipeline.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a chain pyrolysis furnace based on microwave heating;
the marks in the figure: 1 is a ceramic rotating shaft; 2 is a ceramic rotating gear; 3 is a support; 4 is a conveyor belt; 5 is a ceramic scraping plate; 6 is a furnace chamber shell; 7 is a garbage feeding pipeline; 8 is a pyrolysis gas outlet pipeline; 9 is an air exhaust fan; 10 is a post-treatment device; 11 is a magnetron; 12 is a waveguide; 13 is a stirring fan; 14 is the pyrolysis coke outlet.
Detailed Description
The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.
As shown in fig. 1, a chain type pyrolysis furnace based on microwave heating comprises a ceramic rotating shaft 1, a ceramic rotating gear 2, a support 3, a ceramic conveying chain 4, a ceramic scraping plate 5, a furnace chamber shell 6, a garbage feeding pipeline 7, a pyrolysis gas outlet pipeline 8, an air suction fan 9, a post-treatment device 10, a magnetron 11, a waveguide tube 12, a stirring fan blade 13 and a pyrolysis coke outlet 14.
The inside of the furnace chamber is provided with two ceramic rotating shafts 1, the ceramic rotating shafts 1 are provided with ceramic rotating gears 2, the ceramic rotating shafts 1 are in threaded connection with the ceramic rotating gears 2, the two ceramic rotating gears are provided with conveying belts 4, in the embodiment, the conveying belts 4 are made of high-temperature resistant ceramics, the conveying belts 4 are driven to rotate by rotating the ceramic rotating gears 2, and the conveying belts slowly rotate to drive heated materials to move; a garbage feeding pipeline 7 is arranged on the furnace chamber shell 6, materials are put into the pyrolysis furnace through the feeding pipeline 7, an outlet of the garbage feeding pipeline 7 is arranged above the conveyor belt 4, and a cutter is arranged at an inlet end of the feeding pipeline and is used for primarily cutting compressed massive garbage; the inside of the furnace chamber is provided with a shear chain (which is a rolling shear chain and can be purchased from Anyang iron and steel group Limited liability company), the shear chain is arranged at the inlet end of a garbage feeding pipe and is parallel to a cutter to form a shear slot, garbage is sheared into small blocks by the shear chain and the cutter together, the upper part of the furnace chamber is provided with a magnetron 11 and a stirring fan 13, the magnetron 11 is connected with a waveguide 12, the waveguide 12 is arranged in the furnace chamber, electromagnetic waves are emitted through the waveguide 12, the stirring fan is arranged at the outlet of the waveguide, the stirring fan interferes with the electromagnetic wave direction to cause the electromagnetic waves to diverge in all directions, garbage to be heated is pyrolyzed, and the stirring fan can uniformly reflect the microwaves to the surface of materials on a material strip on the one hand; on the other hand, while rotating, the blast pressure head generated by the fan blade can blow pyrolysis gas to the inlet of the exhaust pipeline.
The inner wall of the furnace chamber is coated with a layer of nano silver ions; a pyrolysis coke outlet 14 is arranged at a position corresponding to the furnace chamber housing 6 at the tail end of the conveyor belt 4.
Be provided with pyrolysis gas outlet pipe 8 on the furnace chamber shell 6, in this embodiment, rubbish inlet pipe 7 adopts the sleeve pipe structure with pyrolysis gas outlet pipe 8, and the junction adopts the slips, and rubbish inlet pipe 7 sets up in pyrolysis gas outlet pipe 8, forms the structure of a preheating effect, makes the better pyrolysis treatment rubbish of follow-up. An air exhaust fan 9 is arranged at the outlet of the pyrolysis gas outlet pipeline 8, and a post-treatment device 10 is connected behind the air exhaust fan 9. The ventilating fan 9 is connected with the pyrolysis gas outlet pipeline 8 by adopting a hoop type, and the pyrolysis gas is discharged in time. The lower part of the pyrolysis gas outlet pipeline 8 is provided with a bell mouth structure.
Since thermal pyrolysis produces viscous waste adhering to the belt surface, the scraper 5 is provided to remove the waste adhering to the belt surface. Specifically, the upper left end of the right end opening is provided with a scraping plate, the scraping plate 5 is fixed in a welding mode, a certain gap is reserved between the scraping plate 5 and the conveyor belt, and the scraping plate is approximately 8cm to 16cm, so that hot objects (waste materials) adhered to the conveyor chain due to high temperature are scraped off.
In the embodiment, sealing rings are preferably arranged at the joints of the pyrolysis furnace shell and other parts, the ceramic rotating shaft 1 passes through a transmission shaft hole on the left furnace chamber 6 to be connected with a long cylinder main shaft in a sealing way, the rotating shaft hole is sealed by using a rubber ring, and the sealing rings are also arranged at the two sides of the transmission shaft hole; the furnace chamber 6 is fixed with the support in a welding mode, the inner wall adopts a stainless steel plate to reflect microwaves and prevent the microwaves from leaking, and the surface of the outer layer of the whole furnace chamber shell is wrapped with a heat preservation layer, so that the pyrolysis effect is enhanced. The outer surface of the furnace chamber shell 6 is wrapped with an insulating layer, and can be fixed by welding or bolting. The bottom of the furnace chamber shell is provided with a support 3, and the support 3 is fixedly connected with the ground by adopting an anchor or a pin knot.
The microwave is an electromagnetic wave with the frequency of 300 MHz-300 GHZ, has very short wavelength, has the property of visible light and propagates along a straight line. The microwave can reflect when encountering metal materials, can penetrate when encountering insulating materials such as glass, plastic, ceramic and the like, can be absorbed when encountering mediums such as protein, fat and the like containing moisture, and can change the electromagnetic energy of the microwave into heat energy. Because of the high frequency of microwaves, their transmission requires the use of a high conductivity waveguide 12.
The pyrolysis furnace working process of the application is as follows: the motor is decelerated by the decelerator and then the power is transmitted to the ceramic transmission shaft by the ceramic rotating gear 2. The material is put into the pyrolysis furnace through the feeding pipeline 7, and sealing rings are arranged around the pyrolysis furnace and a shear chain is arranged inside the pyrolysis furnace. The materials are slowly conveyed on the conveyor belt 4, and are conveyed while being pyrolyzed, garbage and waste materials after pyrolysis are conveyed out of the furnace chamber through the pyrolysis coke outlet 14, and pyrolysis gas generated in the pyrolysis process is pumped out by the air suction fan 9 and is discharged to the post-treatment device 10 through the pyrolysis gas outlet pipeline 8. The main components of the pyrolysis gas are macromolecular tar and micromolecular combustible gas, and the combustible gas is collected by processing through a post-processing device and cooled. In the conveying process, microwaves are generated by a magnetron 11 at the upper part of the furnace chamber and are transmitted to the furnace chamber through a waveguide 12, and a stirring fan 13 is used for interfering the microwaves, so that the garbage is heated uniformly, and the garbage is pyrolyzed. Since thermal pyrolysis produces viscous waste adhering to the belt surface, the scraper 5 is provided to remove the waste adhering to the belt surface.
The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the utility model.
Claims (9)
1. The chain type pyrolysis furnace based on microwave heating is characterized in that two ceramic rotating shafts are arranged in a furnace chamber, ceramic rotating gears are arranged on the ceramic rotating shafts, a conveyor belt is arranged on the two ceramic rotating gears, a garbage feeding pipeline, a magnetron and a stirring fan are sequentially arranged above a furnace chamber shell from left to right, an outlet of the garbage feeding pipeline is arranged above the conveyor belt, a cutter is arranged at an inlet end of the feeding pipe, a shearing chain is arranged in the furnace chamber and is arranged at an inlet end of the garbage feeding pipe and is parallel to the cutter, a shearing opening is formed for shearing garbage into small blocks, the magnetron is connected with a waveguide tube, the waveguide tube is arranged in the furnace chamber, and the stirring fan is arranged at an outlet of the waveguide tube; the inner wall of the furnace chamber is coated with a layer of nano silver ions; and a pyrolysis coke outlet is arranged at the position of the furnace chamber shell corresponding to the tail end of the conveyor belt.
2. The microwave heating-based chain pyrolysis furnace according to claim 1, wherein a scraper is arranged at the opening at the right lower end, and a gap of 8cm to 16cm is reserved between the scraper and the conveyor belt.
3. The microwave heating-based chain pyrolysis furnace according to claim 1, wherein a pyrolysis gas outlet pipeline is arranged on the furnace chamber shell, an air suction fan is arranged at an outlet of the pyrolysis gas outlet pipeline, and a post-treatment device is connected behind the air suction fan.
4. A microwave heating-based chain pyrolysis furnace according to claim 3, wherein the garbage feeding pipe and the pyrolysis gas outlet pipe adopt a sleeve structure, the joint adopts a slip type, and the pipe diameter of the garbage feeding pipe is smaller than that of the pyrolysis gas outlet pipe.
5. A microwave heating-based chain pyrolysis furnace according to claim 3 wherein the pyrolysis gas outlet duct has a flare structure in the lower portion.
6. The microwave heating-based chain pyrolysis furnace of claim 1 wherein the furnace chamber material is stainless steel plate.
7. The microwave heating-based chain pyrolysis furnace of claim 1, wherein the outer surface of the furnace chamber housing is coated with a heat insulating layer.
8. The microwave heating-based chain pyrolysis furnace of claim 1, wherein the ceramic rotating shaft is in threaded connection with the ceramic rotating gear.
9. The microwave heating-based chain pyrolysis furnace according to claim 4, wherein a support is arranged at the bottom of the furnace chamber shell, and the support and the ground are fixedly connected by adopting an anchor or a pin knot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321921503.3U CN220413261U (en) | 2023-07-20 | 2023-07-20 | Chain type pyrolysis furnace based on microwave heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321921503.3U CN220413261U (en) | 2023-07-20 | 2023-07-20 | Chain type pyrolysis furnace based on microwave heating |
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| Publication Number | Publication Date |
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| CN220413261U true CN220413261U (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321921503.3U Active CN220413261U (en) | 2023-07-20 | 2023-07-20 | Chain type pyrolysis furnace based on microwave heating |
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| Country | Link |
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| CN (1) | CN220413261U (en) |
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2023
- 2023-07-20 CN CN202321921503.3U patent/CN220413261U/en active Active
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