CN117299757A - Recovery system and method for retired fan blades - Google Patents
Recovery system and method for retired fan blades Download PDFInfo
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- CN117299757A CN117299757A CN202311616106.XA CN202311616106A CN117299757A CN 117299757 A CN117299757 A CN 117299757A CN 202311616106 A CN202311616106 A CN 202311616106A CN 117299757 A CN117299757 A CN 117299757A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
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- 239000002351 wastewater Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/85—Paper; Wood; Fabrics, e.g. cloths
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Induction Heating (AREA)
Abstract
The application relates to a recovery system and method of retired fan blades, comprising the following steps: electromagnetic heating device, electromagnetic heating device includes: an inner housing, an outer housing, and an electromagnetic heating assembly; the electromagnetic heating assembly includes: the electromagnetic control component is sleeved on the inner shell and connected with the electromagnetic coil; the electromagnetic coil completely wraps the inner shell, and an insulating layer is arranged outside the inner shell; controlling the balance of heating through the electromagnetic coil and the electromagnetic control component; the heat preservation layer is arranged outside the inner shell to ensure that the temperature in the furnace is kept stable, and meanwhile, the high temperature in the furnace is prevented from diffusing outwards; the electromagnetic heating device is of an assembled modular structure, so that the retired fan blades can be processed in a large scale; the length in the structure that the pin-connected panel divides the multiunit to set up is adjusted according to fan blade's size, can dismantle the connection between each group, helps realizing fiber length maximize.
Description
Technical Field
The application relates to the technical field of waste recovery, in particular to a recovery system and method for retired fan blades.
Background
Wind power generation is an important component of a novel power system, and large-batch fan blades of early wind power plants are gradually retired. The fan blade is one of the core components of the wind driven generator, mainly comprises a thermosetting resin matrix composite material reinforced by fiber materials or mixtures, and further comprises a certain amount of metals such as aluminum, copper and the like, a small amount of epoxy structural adhesive, polypropylene oxide raccoon paint and the like. The epoxy resin cannot be reused after being solidified, the recovery difficulty of the fiber materials in the blade is high, the cutting and disassembling process is very complex during recovery, and the treatment is very difficult. And the maximization of the fiber length is one of the difficulties of recycling the fan blade, and is also a valuable embodiment, and the longer the fiber length is, the greater the fiber utilization value is.
At present, common recycling methods mainly comprise mechanical crushing treatment, chemical dissolution treatment, incineration treatment and pyrolysis treatment, wherein the mechanical crushing treatment is to prepare crushed particles into building materials, packaging materials, fillers and the like for recycling after multiple links of disassembly, cutting, grinding, crushing and the like are processed on waste wind turbine generator blades, and the operation cost is low, but long fibers cannot be obtained. And the chemical dissolution treatment is to dissolve the epoxy resin material in the retired wind turbine blade by using an organic solvent, and then recycle the residual glass fiber. Although the chemical dissolution method can effectively improve the recovery rate of the fiber and the resin, the solvent cost is high, so that the path cannot be applied in large scale. Meanwhile, in the face of the processing requirement of the retired volume of the wind turbine, the mass processing equipment capable of meeting the scale of retired blades is also difficult to be a chemical dissolution technology. The composite materials such as the blades and the like are recycled through incineration treatment, and organic components are combusted to obtain energy, however, the simple incineration can generate a large amount of black smoke and odor, so that serious pollution is caused to the atmospheric environment, and the residue after the incineration can also cause serious pollution to the environment.
When the electromagnetic induction heating is adopted for pyrolysis treatment, the energy transmission is carried out in the electromagnetic wave mode, the energy loss is less, the heating efficiency is high, the energy utilization rate is greatly improved, the heating process has no smoke dust, waste gas and peculiar smell, no harmful gas is discharged, the pollution to the working environment is avoided, the electromagnetic induction heating type pyrolysis device belongs to an environment-friendly heat source, the automatic control is easy, the heat source parameters in the heating process mainly comprise the power and the frequency of a power supply, the automatic control is easy to realize in the control process, the heating temperature in the pyrolysis process is effectively controlled, and the heating speed is high.
Chinese patent CN 100516174C discloses a biomass electromagnetic induction pyrolysis liquefaction reactor, through winding inductance coils on the casing of the spiral feeder, makes biomass pyrolysis liquefaction, adopts electromagnetic induction heating spiral feeder pay-off mode, and equipment itself is applicable to biomass, can't pyrolyze the retired fan blade of long structure dysmorphism, can't obtain recycle's long fiber.
Chinese patent CN 103134307A discloses an electromagnetic induction heating rotary kiln, which utilizes the advantage of electromagnetic induction heating to make the rotary kiln self-heat, without open fire, the heating speed is fast, the preheating time is short, the working temperature of the rotary kiln can be precisely controlled, the thermal efficiency is high, but the structure is fixed, and the rotary kiln is also not suitable for retired fan blades with changeable structural shapes.
Chinese patent CN 206368123U discloses a device for pyrolysis, gasification, baking or drying, the outside of the casing of the device is provided with a coil, the inside of the casing is provided with an induction component made of a magnetocaloric material and/or the casing is made of a magnetocaloric material, the magnetocaloric material is used for providing heat for materials in the casing due to electromagnetic induction heating after the coil is electrified, the device can make the materials heated uniformly, the materials cannot be heated and controlled in sections, and the length of the device cannot be adjusted, so that the device cannot be suitable for the integral pyrolysis of fan blades with different lengths.
Chinese patent CN 113355116A discloses a system for treating and recovering composite materials, which uses an electromagnetic induction thermal cracking system, and performs thermal cracking by providing a flat plate type electromagnetic induction heating jacket outside a thermal cracking reactor, wherein the flat plate type electromagnetic induction heating jacket is difficult to be used in industry, and the balance and stability of heating cannot be controlled, and the maximization of fiber length cannot be realized.
That is, in the prior art, when the retired fan blade is treated by electromagnetic induction heating, the balance and stability of control heating are poor, and especially, the fan blade with a larger length and an indefinite length cannot be flexibly and integrally treated.
Disclosure of Invention
In order to at least overcome the problems that the balance and stability of heating cannot be controlled and the fiber length cannot be maximized in the retired fan blade processed by adopting electromagnetic induction heating in the related technology to a certain extent, the application provides a retired fan blade recycling system and method.
The scheme of the application is as follows:
in a first aspect, the present application provides a recovery system for retired fan blades, the system comprising:
the electromagnetic heating device is of an assembled modular structure;
the electromagnetic heating device includes: an inner housing, an outer housing, and an electromagnetic heating assembly; the electromagnetic heating assembly includes: the electromagnetic control component is sleeved on the inner shell and connected with the electromagnetic coil; the electromagnetic coil completely wraps the inner shell, an insulation layer is arranged outside the inner shell, and the insulation layer is made of insulation cotton; the electromagnetic control component is used for controlling the reaction temperature and the reaction time of heating.
Further, the inner shell material is metal, and the metal is any one of iron, ferrite stainless steel and martensitic stainless steel.
Further, each group of electromagnetic heating devices in the electromagnetic heating devices is independently provided with an electromagnetic coil, a temperature area is formed by the part, wound around the inner shell, of each group of electromagnetic coils, and each group of electromagnetic coils is connected with the electromagnetic control part.
Further, the electromagnetic heating assembly further includes:
and the temperature sensors are arranged on the outer wall of the inner shell and connected with the electromagnetic control component and are used for realizing electromagnetic heating and real-time automatic control of heating temperature.
Further, the electromagnetic heating device is a round roller structure, and the round roller structure is any one of a fixed type, a rotatable type and an oscillating type.
In a second aspect, the present application provides a method for recovering a retired fan blade, which is applied to a retired fan blade recovery system described in any one of the above, and the method includes:
obtaining retired fan blades;
carrying out pyrolysis reaction on the retired fan blades by utilizing electromagnetic heating to obtain a gas-phase product and a solid-phase product;
purifying the gas-phase product and performing multistage cooling treatment to obtain pyrolysis oil, a small amount of wastewater and noncondensable gas;
sorting the solid-phase product to obtain a fiber material, metal and porous carbon;
the non-condensable gas is used for generating power by a gas generator, and the gas generator generates power to supply power to the electromagnetic heating device.
Further, the pyrolysis reaction includes:
the reaction temperature of the pyrolysis reaction is 300-450 ℃ and the reaction time is 1-2h.
The technical scheme that this application provided can include following beneficial effect:
the application comprises the following steps: an electromagnetic heating device, the electromagnetic heating device comprising: an inner housing, an outer housing, and an electromagnetic heating assembly; the electromagnetic heating assembly includes: the electromagnetic control component is sleeved on the inner shell and connected with the electromagnetic coil; the electromagnetic coil completely wraps the inner shell, an insulation layer is arranged outside the inner shell, and the insulation layer is made of insulation cotton; the electromagnetic control component is used for controlling the reaction temperature and the reaction time of heating, and the electromagnetic coil is sleeved on the inner shell in the electromagnetic heating component and is connected with the electromagnetic coil, and the electromagnetic coil completely wraps the inner shell and is used for controlling the balance of heating; the heat preservation layer is arranged outside the inner shell, and is made of heat preservation cotton and used for guaranteeing the temperature in the furnace to be stable and avoiding the high temperature in the furnace from diffusing outwards; the electromagnetic heating device is of a structure of split type divided into multiple groups, so that the retired fan blades can be processed in a large scale, and the reduction, harmlessness and recycling of the retired fan blades can be realized; meanwhile, the length in the structure of the split mounting type split multi-group arrangement is adjusted according to the size of the fan blade, and the split mounting type split mounting structure is detachably connected between the groups, so that the maximization of the fiber length is realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic diagram of a recovery system for retired fan blades according to one embodiment of the present disclosure;
FIG. 2 is a schematic flow diagram of a method for recovering retired fan blades according to another embodiment of the disclosure;
FIG. 3 is a schematic flow diagram of a method for recovering retired fan blades according to another embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
Examples
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a recovery system for retired fan blades according to one embodiment of the present application, where the system includes:
the electromagnetic heating device is of an assembled modular structure;
the electromagnetic heating device includes: an inner housing 1, an outer housing 2 and an electromagnetic heating assembly; the electromagnetic heating assembly includes: the electromagnetic coil 3 is sleeved on the inner shell 1 and is connected with the electromagnetic control part 5; the electromagnetic coil 3 completely wraps the inner shell 1, an insulation layer 4 is arranged outside the inner shell 1, and the insulation layer 4 is made of insulation cotton, so that the temperature in the furnace is kept stable, and the high temperature in the furnace is prevented from diffusing outwards; the electromagnetic control part 5 is used for controlling the reaction temperature of heating and the reaction time
In particular, the electromagnetic control means 5 comprise: and the electromagnetic heating controller converts electric energy into heat energy by utilizing electromagnetic induction, the electromagnetic heating controller rectifies alternating current into alternating current, then converts the direct current into high-frequency high-voltage electricity, the high-speed changed high-frequency high-voltage electricity flows through the coil to generate a high-speed changed alternating magnetic field, and when magnetic force lines in the magnetic field generate eddy current to generate heat through the metal cylinder.
In one embodiment, the material of the inner shell 1 is a metal, and the metal is any one of iron, ferrite stainless steel and martensitic stainless steel.
In one embodiment, the electromagnetic heating device is in a modular structure, the length of the electromagnetic heating device is adjusted according to the size of the fan blade, the electromagnetic heating device is detachably connected with each group, such as a flange connection, each electromagnetic heating device in the electromagnetic heating device is independently provided with an electromagnetic coil 3, a temperature area is formed by the part, wound around the inner shell 1, of each electromagnetic coil 3, and each electromagnetic coil 3 is connected with the electromagnetic control part 5. Through setting up electromagnetic heating device into pin-connected panel, can satisfy the demand of the retired fan blade pyrolysis of equidimension to obtain long fiber, to the not unified condition of fan blade overall dimension, this application gives the countermeasure equally, sets up solenoid 3 through the group, and this kind of design of subregion control temperature has not only satisfied the size demand of retired fan blade, has practiced thrift the energy consumption simultaneously. By adopting electromagnetic heating, the electrothermal conversion efficiency is up to 98%, heat can be fully utilized, the effect of saving electricity is achieved, the consistency of temperature is realized by accurately controlling the temperature, the whole heating is uniform, and the pyrolysis process is rapidly and efficiently completed.
Further, the electromagnetic heating assembly further includes:
and one or more temperature sensors arranged on the outer wall of the inner shell 1, wherein the temperature sensors are connected with the electromagnetic control component 5 and are used for realizing electromagnetic heating and real-time automatic control of heating temperature.
In the concrete implementation, the electromagnetic heating assembly further comprises a temperature sensor arranged on the outer wall of the inner shell 1, and the temperature sensor is connected with the electromagnetic control part 5 to realize real-time automatic control of electromagnetic heating and heating temperature. To achieve fiber recycling, the temperature of the system needs to be strictly controlled. The temperature of the system is rapidly and accurately obtained through a temperature sensor, and the electromagnetic heating process is controlled in real time and in sections according to actual requirements.
As a further aspect of the present application, the temperature sensor is provided in plurality. Temperature sensors are arranged in a plurality of areas, so that temperature differences of all areas are accurately detected, the temperature rising rate and the heating temperature are adjusted, and the pyrolysis process of the retired fan blade is completed.
Further, the electromagnetic heating device is a round roller structure, and the round roller structure is any one of a fixed type, a rotatable type and an oscillating type. Wherein, the oscillation type is rotated to the left and right by a preset angle. The design of the electromagnetic heating device is not particularly limited, and the electromagnetic heating device can be variously designed, can be a fixed drum type, can be designed into a rotatable type which is wholly and intermittently or continuously rotated, and can be of an oscillating type. According to the requirement, the electromagnetic heating device is movable on the vehicle and is used for processing the retired fan blades in remote areas.
In specific implementation, the electromagnetic heating assembly is characterized in that an electromagnetic coil 3 sleeved on an inner shell 1 is arranged in the electromagnetic heating assembly, and an electromagnetic control component 5 is connected with the electromagnetic coil 3, and the electromagnetic coil 3 completely wraps the inner shell 1 and is used for controlling the heating balance; the heat preservation layer 4 is arranged outside the inner shell 1, and the heat preservation layer 4 is made of heat preservation cotton and is used for guaranteeing the temperature in the furnace to be stable and avoiding the high temperature in the furnace from diffusing outwards; the electromagnetic heating device is of a structure of split type divided into multiple groups, so that the retired fan blades can be processed in a large scale, and the reduction, harmlessness and recycling of the retired fan blades can be realized; meanwhile, the length in the structure of the split mounting type split multi-group arrangement is adjusted according to the size of the fan blade, and the split mounting type split mounting structure is detachably connected between the groups, so that the maximization of the fiber length is realized.
Referring to fig. 2 and 3, fig. 2 is a schematic flow chart of a method for recovering retired fan blades according to another embodiment of the present application, where the method includes:
s1, obtaining a retired fan blade;
s2, carrying out pyrolysis reaction on the retired fan blades by utilizing electromagnetic heating to obtain a gas-phase product and a solid-phase product;
s3, purifying the gas-phase product and performing multi-stage cooling treatment to obtain pyrolysis oil, a small amount of wastewater and noncondensable gas;
s4, sorting the solid-phase product to obtain a fiber material, metal and porous carbon;
the non-condensable gas is used for generating power by a gas generator, and the gas generator generates power to supply power to the electromagnetic heating device.
In specific implementation, the retired fan blades are placed in an electromagnetic heating device for pyrolysis by utilizing electromagnetic heating, gas-phase products and solid-phase products are generated after pyrolysis, the gas-phase products are purified, pyrolysis oil with different boiling points, a small amount of wastewater and noncondensable gas are obtained through multistage cooling, the noncondensable gas in the gas-phase products is used as fuel for a gas generator to generate power, the gas generator supplies power for the electromagnetic heating device, self-supply of energy of the whole system is realized, and the solid-phase products are separated to obtain fiber materials, metals and porous carbon. The separated substances can be reused, for example, porous carbon can be used as an adsorption material, in particular, the nondestructive recovery of fiber materials is realized, the length is not limited, and the reduction, the harmless treatment and the recycling of the retired fan blade are realized. Dust collection equipment is adopted to intensively recycle dust generated in gas-phase products after pyrolysis during purification, so that dust pollution is avoided.
In specific implementation, electromagnetic heating pyrolysis fan blades are adopted, temperature change is detected through a temperature sensor, the temperature is controlled in groups according to the shape of the fan blades, so that the temperature and the temperature rising rate are accurately controlled according to the field conditions, the recycling of retired fan blades is realized, generated noncondensable gas can be supplied to a gas generator for power generation, self-supply of electric quantity is realized, the gas generator generates power and supplies electricity to an induction coil for heating, reusable long fibers can be obtained, and fiber materials can be returned to the field of fan blade production or construction.
In particular embodiments, the conditions for the pyrolysis reaction include: the reaction temperature is 300-450 ℃ and the reaction time is 1-2h. The reaction temperature and the reaction time are the influencing factors of the pyrolysis reaction, wherein the reaction temperature is the most important control parameter of the pyrolysis process, and the temperature change has a great influence on the product yield and the component proportion. The invention well controls the proportion of pyrolysis oil gas and the like at 300-450 ℃. In the invention, electromagnetic heating capable of accurately controlling the temperature rising rate and the temperature is adopted, the starting and stopping of heating are more conveniently controlled, the temperature is adjusted according to the requirement, the heating is uniform, and the advantage of electromagnetic heating is highlighted.
In a specific implementation, as in step S3, the purifying and multistage cooling treatment are performed on the gas phase product to obtain pyrolysis oil, a small amount of wastewater and non-condensable gas, including:
purifying the gas-phase product, and respectively collecting pyrolysis oil with different boiling points through multistage cooling treatment.
In specific implementation, as described in step S4, the solid-phase product is subjected to a sorting treatment to obtain a fiber material, a metal and porous carbon, including:
and (3) carrying out eddy current separation on the solid-phase product to obtain metal, and carrying out wind separation to obtain fiber materials and pyrolysis residues.
In practice, when an electric current is passed through a coil in an electromagnetic heater, an alternating magnetic field is generated, which penetrates into the conductive material, inducing the generation of eddy currents, which generate electrical resistance inside the conductive material, causing energy loss, converting electrical energy into thermal energy, and thereby heating the material in the system. Through placing fan blade in electromagnetic heating device and carrying out pyrolysis, electromagnetic heating accurate control pyrolysis temperature, noncondensable gas carries to gas generator and generates electricity, generates electricity and supplies power for solenoid through gas generator, and energy-conservation and thermal efficiency are high, do not need extra energy input, and process flow environmental protection and energy utilization are very high, and running cost is low.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
It should be noted that in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "plurality" means at least two.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (7)
1. A retired fan blade recovery system, the system comprising:
the electromagnetic heating device is of an assembled modular structure;
the electromagnetic heating device includes: an inner housing, an outer housing, and an electromagnetic heating assembly; the electromagnetic heating assembly includes: the electromagnetic control component is sleeved on the inner shell and connected with the electromagnetic coil; the electromagnetic coil completely wraps the inner shell, an insulation layer is arranged outside the inner shell, and the insulation layer is made of insulation cotton; the electromagnetic control component is used for controlling the reaction temperature and the reaction time of heating.
2. The system of claim 1, wherein the inner shell material is a metal, the metal being any one of iron, ferritic stainless steel, martensitic stainless steel.
3. The system of claim 1, wherein each set of electromagnetic heating devices is independently provided with an electromagnetic coil, wherein a portion of each set of electromagnetic coils wound around the inner housing forms a temperature zone, and wherein each set of electromagnetic coils is connected to the electromagnetic control unit.
4. The system of claim 1, wherein the electromagnetic heating assembly further comprises:
and the temperature sensors are arranged on the outer wall of the inner shell and connected with the electromagnetic control component and are used for realizing electromagnetic heating and real-time automatic control of heating temperature.
5. The system of claim 1, wherein the electromagnetic heating device is a circular drum structure, the circular drum structure being any one of stationary, rotatable, oscillating.
6. A method for recovering retired fan blades, characterized in that it is applied to a retired fan blade recovery system according to any one of claims 1-5, said method comprising:
obtaining retired fan blades;
carrying out pyrolysis reaction on the retired fan blades by utilizing electromagnetic heating to obtain a gas-phase product and a solid-phase product;
purifying the gas-phase product and performing multistage cooling treatment to obtain pyrolysis oil, a small amount of wastewater and noncondensable gas;
sorting the solid-phase product to obtain a fiber material, metal and porous carbon;
the non-condensable gas is used for generating power by a gas generator, and the gas generator generates power to supply power to the electromagnetic heating device.
7. The method of claim 6, wherein the pyrolysis reaction comprises:
the reaction temperature of the pyrolysis reaction is 300-450 ℃ and the reaction time is 1-2h.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040173239A1 (en) * | 2001-04-30 | 2004-09-09 | Erik Grove-Nielsen | Method for recycling composite materials |
| CN107846737A (en) * | 2017-10-12 | 2018-03-27 | 江苏火龙电器股份有限公司 | The intelligent electromagnetic heater and its control system of a kind of adjustable length |
| CN110961426A (en) * | 2018-09-28 | 2020-04-07 | 蓝星(北京)化工机械有限公司 | An industrial waste salt and waste residue treatment device |
| CN114653729A (en) * | 2021-12-17 | 2022-06-24 | 中国科学院广州能源研究所 | A kind of decommissioned fan blade vacuum pyrolysis treatment recovery method |
| CN218049632U (en) * | 2022-06-15 | 2022-12-16 | 东方电气集团科学技术研究院有限公司 | Pyrolysis gasifier for continuously treating waste wind power blades |
| CN115818987A (en) * | 2023-01-05 | 2023-03-21 | 山西钙基新材料科技有限公司 | Electromagnetic rotary kiln for calcining limestone |
| CN116967256A (en) * | 2023-08-07 | 2023-10-31 | 中国华电科工集团有限公司 | A system and method for whole piece processing of retired wind turbine blades |
| CN117086071A (en) * | 2023-08-31 | 2023-11-21 | 华北电力大学 | Thermal conversion recovery method for retired fan blade |
-
2023
- 2023-11-30 CN CN202311616106.XA patent/CN117299757A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040173239A1 (en) * | 2001-04-30 | 2004-09-09 | Erik Grove-Nielsen | Method for recycling composite materials |
| CN107846737A (en) * | 2017-10-12 | 2018-03-27 | 江苏火龙电器股份有限公司 | The intelligent electromagnetic heater and its control system of a kind of adjustable length |
| CN110961426A (en) * | 2018-09-28 | 2020-04-07 | 蓝星(北京)化工机械有限公司 | An industrial waste salt and waste residue treatment device |
| CN114653729A (en) * | 2021-12-17 | 2022-06-24 | 中国科学院广州能源研究所 | A kind of decommissioned fan blade vacuum pyrolysis treatment recovery method |
| CN218049632U (en) * | 2022-06-15 | 2022-12-16 | 东方电气集团科学技术研究院有限公司 | Pyrolysis gasifier for continuously treating waste wind power blades |
| CN115818987A (en) * | 2023-01-05 | 2023-03-21 | 山西钙基新材料科技有限公司 | Electromagnetic rotary kiln for calcining limestone |
| CN116967256A (en) * | 2023-08-07 | 2023-10-31 | 中国华电科工集团有限公司 | A system and method for whole piece processing of retired wind turbine blades |
| CN117086071A (en) * | 2023-08-31 | 2023-11-21 | 华北电力大学 | Thermal conversion recovery method for retired fan blade |
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