CN218579886U - Tunnel kiln type waste wind power blade pyrolysis recovery device - Google Patents
Tunnel kiln type waste wind power blade pyrolysis recovery device Download PDFInfo
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- CN218579886U CN218579886U CN202222857163.4U CN202222857163U CN218579886U CN 218579886 U CN218579886 U CN 218579886U CN 202222857163 U CN202222857163 U CN 202222857163U CN 218579886 U CN218579886 U CN 218579886U
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Abstract
The utility model discloses a tunnel cave formula old and useless wind-powered electricity generation blade pyrolysis recovery unit, including tunnel cave body, high temperature resistant conveyer belt and flue gas conveying system, tunnel cave body divide into between first tunnel cave interval and the second tunnel cave interval, sets up the response gate between first tunnel cave interval and the second tunnel cave interval, and first tunnel cave interval and the second tunnel cave interval constitute by a plurality of temperature control unit, through the constancy of temperature of electric heating control temperature control unit. The device carries out secondary utilization on the heat of the first tunnel kiln smoke generated in the first tunnel kiln section and the heat of the second tunnel kiln smoke generated in the second tunnel kiln section, thereby reducing the overall energy consumption; through dividing the tunnel cave body into between first tunnel cave and the second tunnel cave, carry out pyrolytic reaction under the temperature that is relatively low, ensured glass fiber's high-quality recovery.
Description
Technical Field
The utility model relates to an old and useless wind-powered electricity generation blade retrieves technical field, especially relates to an old and useless wind-powered electricity generation blade pyrolysis recovery unit of tunnel kiln formula.
Background
In recent years, wind power is rapidly developed in China as a clean and environment-friendly energy source. The wind power blade is a core component of a wind turbine generator, and is mainly made of glass fiber or carbon fiber reinforced thermosetting epoxy resin and difficult to degrade. The retired wind power blade not only pollutes the environment, but also causes resource waste.
At present, the waste blades are mainly treated by landfill, the method does not carry out limited utilization on the waste wind power blades, and the landfill is not beneficial to environmental protection. Pyrolysis is a novel method for recovering resin matrix composite materials, and is generally used for converting matrix resin of the composite materials into gaseous micromolecular compounds under the action of specific atmosphere and high temperature (not less than 850 ℃), recovering reinforcing fibers with high added value and realizing resource utilization. The main material of the wind power blade is glass fiber reinforced plastics, so that the method can be used for recovering the wind power blade, has the characteristic of easy scale production, and has the defects of high energy consumption, low quality of recovered fibers and the like when the waste blade is treated. Therefore, a new wind blade pyrolysis recovery device is needed to be developed.
SUMMERY OF THE UTILITY MODEL
High, the low technical problem of recovery fiber quality of energy consumption when retrieving to the old and useless wind-powered electricity generation blade that exists in the above-mentioned technique, the utility model provides a tunnel kiln formula old and useless wind-powered electricity generation blade pyrolysis recovery unit. The utility model discloses a tunnel kiln formula pyrolysis device of old and useless wind-powered electricity generation blade pyrolysis recovery unit design has realized that old and useless wind-powered electricity generation blade's high quality, low energy consumption retrieve.
The utility model provides a tunnel kiln formula old and useless wind-powered electricity generation blade pyrolysis recovery unit, include:
the tunnel kiln comprises a tunnel kiln body, wherein the tunnel kiln body is divided into a first tunnel kiln section and a second tunnel kiln section arranged at the downstream of the first tunnel kiln section, an induction gate is arranged between the first tunnel kiln section and the second tunnel kiln section, the first tunnel kiln section and the second tunnel kiln section are both composed of a plurality of temperature control units, and the temperature of the temperature control units is controlled to be constant through electric heating;
the high-temperature-resistant conveyor belt drives the wind power blade to move in the tunnel kiln body, and the moving speed of the wind power blade in the tunnel kiln body is controlled by adjusting the belt speed of the high-temperature-resistant conveyor belt;
flue gas conveying system.
In some embodiments, the wind power blade is used for pyrolysis reaction and oxidation reaction in the first tunnel kiln zone and the second tunnel kiln zone respectively, the temperature of the first tunnel kiln zone is 250-400 ℃, and the temperature of the second tunnel kiln zone is 400-550 ℃.
In some embodiments, the residence time of the wind power blade in the first tunnel kiln zone is 30-60min.
In some embodiments, the residence time of the wind power blade in the second tunnel kiln zone is 1.5-5h.
In some embodiments, the induction gate comprises a first induction gate and a second induction gate, with an isolation zone formed between the first induction gate and the second induction gate.
In some embodiments, the flue gas delivery system comprises:
the air pump is used for conveying compressed air to the second tunnel kiln section;
the oil storage tank is used for storing tar;
a heat exchanger for preheating the compressed air;
a pollutant removal module for absorbing pollutants in the flue gas.
In some embodiments, a first tunnel kiln flue gas generated in the first tunnel kiln zone is sent into the oil storage tank through a first induced draft fan, and the first tunnel kiln flue gas exchanges heat with the compressed air passing through the heat exchanger.
In some embodiments, the compressed air after heat exchange by the heat exchanger is sent to the second tunnel kiln section by a blower.
In some embodiments, the second tunnel kiln flue gas generated in the second tunnel kiln section is sent to the first tunnel kiln section through a second induced draft fan.
In some embodiments, the heat exchanger is disposed outside the oil storage tank.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a tunnel cave formula old and useless wind-powered electricity generation blade pyrolysis recovery unit has carried out the reutilization to the heat of the first tunnel cave flue gas of the interval production of first tunnel cave and the heat of the second tunnel cave flue gas of the interval production of second tunnel cave, has reduced whole energy consumption.
The utility model discloses an old and useless wind-powered electricity generation blade pyrolysis recovery unit of tunnel kiln formula sends into the second tunnel cave interval after preheating compressed air through the heat exchanger and carries out oxidation reaction for going on of reaction, practiced thrift the energy consumption.
The utility model discloses a tunnel cave formula old and useless wind-powered electricity generation blade pyrolysis recovery unit is through dividing the tunnel cave body into between first tunnel cave and the second tunnel cave, carries out pyrolytic reaction under the temperature that relatively hangs down, has ensured glass fiber's high-quality recovery.
The utility model discloses an old and useless wind-powered electricity generation blade pyrolysis recovery unit of tunnel kiln formula discharges the atmosphere again after with gas cleaning through setting up pollutant desorption module, can not cause environmental pollution, has reached the effect of environmental protection.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is the utility model provides a tunnel kiln formula old and useless wind-powered electricity generation blade pyrolysis recovery unit schematic diagram.
Description of reference numerals:
wind power blade 1, high temperature resistant conveyer belt 2, the interval 3 of first tunnel cave, the interval 4 of second tunnel cave, first response gate 5, second response gate 6, temperature control unit 7, first draught fan 8, second draught fan 9, forced draught blower 10, heat exchanger 11, oil storage tank 12, air pump 13, pollutant desorption module 14, glass fiber 15.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.
The tunnel kiln type waste wind power blade pyrolysis recovery device provided by the embodiment of the utility model is described below with reference to the attached drawings.
As shown in fig. 1, the utility model discloses a tunnel kiln formula old and useless wind-powered electricity generation blade pyrolysis recovery unit, include: the tunnel kiln comprises a tunnel kiln body, a high-temperature-resistant conveyor belt 2 and a flue gas conveying system.
In some embodiments, the tunnel kiln body is divided into a first tunnel kiln section 3 and a second tunnel kiln section 4, the second tunnel kiln section 4 being disposed downstream of the first tunnel kiln section 3.
In some embodiments, the first tunnel kiln zone 3 and the second tunnel kiln zone 4 are each comprised of a plurality of temperature control units 7. It will be appreciated that the temperature of the first tunnel kiln zone 3 and the second tunnel kiln zone 4 is controlled by controlling the temperature of the plurality of temperature control units 7.
In some embodiments, the temperature of the temperature control unit 7 is controlled to be constant by electric heating. It will be appreciated that the temperature of the temperature control unit 7 may also be controlled by other heating means.
The wind power blade 1 is subjected to a pyrolysis reaction in the first tunnel kiln section 3, the temperature of the first tunnel kiln section 3 is 250-400 ℃, the residence time of the wind power blade 1 in the first tunnel kiln section 3 is 30-60min, namely the residence time of the wind power blade 1 passing through the first tunnel kiln section 3 under the drive of the high-temperature resistant conveyor belt 2 is 30-60min. In the pyrolysis reaction process, the resin material in the wind power blade 1 is gradually pyrolyzed and converted into a black carbon block.
The wind power blade 1 is subjected to oxidation reaction in the second tunnel kiln section 4, the temperature of the second tunnel kiln section 4 is 400-550 ℃, the stay time of the wind power blade 1 in the second tunnel kiln section 4 is 1.5-5h, namely the time of the wind power blade 1 passing through the second tunnel kiln section 4 under the drive of the high-temperature resistant conveyor belt 2 is 1.5-5h. In the oxidation reaction process, the black carbon block reacts with oxygen in the compressed air to generate carbon dioxide, and the black carbon block gradually turns white along with the reaction, so that the white glass fiber 15 is finally obtained. The pyrolysis reaction is generally carried out at 850 ℃ or higher, the temperature is higher, the strength of the glass fiber 15 is reduced and the brittleness is increased under the high-temperature environment, and therefore, the quality of the finally obtained glass fiber is not high. And the utility model discloses a pyrolysis of going on below 600 ℃, the pyrolysis temperature is low relatively, can not cause great destruction to glass fiber 15's intensity, and glass fiber 15's toughness has obtained better protection, and consequently, the finally glass fiber quality that obtains is higher relatively.
Additionally, the utility model discloses in not having the black carbon piece that produces the pyrolysis of wind-powered electricity generation blade 1 to shake the sieve operation, consequently, the glass fiber 15 who obtains has complete structure, collects easily.
In some embodiments, an induction gate is provided between the first tunnel kiln section 3 and the second tunnel kiln section 4. It can be understood that the induction gates divide the tunnel kiln body into a first tunnel kiln section 3 and a second tunnel kiln section 4, thereby dividing the pyrolysis reaction and the oxidation reaction.
In some embodiments, the induction gate comprises a first induction gate 5 and a second induction gate 6, with an isolation zone formed between first induction gate 5 and second induction gate 6.
Specifically, first response gate 5 closes on 3 settings in the first tunnel cave interval, and second response gate 6 closes on 4 settings in the second tunnel cave interval, and second response gate 6 sets up in 5 low reaches of first response gate promptly, and forms the isolation region between first response gate 5 and the second response gate 6. In the operation process of the device, the pyrolyzed wind power blade 1 reaches a first induction gate 5 under the driving of a high-temperature resistant conveyor belt 2, the first induction gate 5 is opened after the wind power blade 1 is induced, the wind power blade 1 enters an isolation area formed between the first induction gate 5 and a second induction gate 6 from a first tunnel kiln area 3, and the first induction gate 5 is closed; wind-powered electricity generation blade 1 reachs second response gate 6, and second response gate 6 opens after sensing wind-powered electricity generation blade 1, and wind-powered electricity generation blade 1 gets into second tunnel cave interval 4 from the isolation region that forms between first response gate 5 and the second response gate 6 and carries out oxidation reaction.
It will be appreciated that the provision of the first and second induction gates 5, 6 serves to insulate the atmosphere of the first and second tunnel kiln sections 3, 4.
The high-temperature-resistant conveyor belt 2 drives the wind power blade 1 to move in the tunnel kiln body, and the moving speed of the wind power blade 1 in the tunnel kiln body is controlled by adjusting the belt speed of the high-temperature-resistant conveyor belt 2. It can be understood that the moving speed of the wind power blade 1 in the tunnel kiln body is controlled by adjusting the belt speed of the high-temperature resistant conveyor belt 2, so that the residence time of the wind power blade 1 in the first tunnel kiln section 3 and the second tunnel kiln section 4 is controlled. In addition, the high temperature environment of the tunnel kiln does not affect the high temperature resistant conveyor belt 2.
In some embodiments, the flue gas conveying system comprises an air pump 13, an oil storage tank 12, a heat exchanger 11 and a pollutant removal module 14, wherein the air pump 13 is used for conveying compressed air for the second tunnel kiln zone 4; the oil storage tank 12 is used for storing tar; the heat exchanger 11 is used for preheating compressed air; the contaminant removal module 14 is used to absorb contaminants in the flue gas.
Specifically, the oxidation reaction is performed in the second tunnel kiln zone 4, and the oxidation reaction requires oxygen to participate in the reaction, that is, part of the oxygen is consumed in the oxidation reaction performed in the second tunnel kiln zone 4, and the compressed air is sent into the second tunnel kiln zone 4 by using the air pump 13.
In some embodiments, the air sucked by the air pump 13 enters the second tunnel kiln zone 4 after exchanging heat with the first tunnel kiln flue gas in the oil storage tank 12 in the heat exchanger 11.
Specifically, the compressed air after heat exchange enters the second tunnel kiln section 4 under the action of the blower 10, so as to provide an oxygen source for the oxidation reaction in the second tunnel kiln section 4. In addition, it can be understood that the temperature of the compressed air is increased after the heat exchange of the heat exchanger 11, which is beneficial to accelerating the oxidation reaction in the second tunnel kiln section 4, and the heat of the flue gas of the first tunnel kiln generated in the first tunnel kiln section 3 is reused, so that the overall energy consumption is reduced.
The temperature that the oxidation reaction in the second tunnel kiln interval 4 needs is higher than the temperature that the pyrolysis reaction in the first tunnel kiln interval 3 needs, and the oxidation reaction is exothermic reaction, has produced the second tunnel kiln flue gas of high temperature at the in-process that the oxidation reaction goes on. In some embodiments, the high temperature second tunnel kiln flue gas is fed into the first tunnel kiln section 3 by a second induced draft fan 9. It can be understood that the second tunnel kiln flue gas enters the first tunnel kiln section 3 so as to provide a heat source for the pyrolysis reaction in the first tunnel kiln section 3, and the heat of the second tunnel kiln flue gas is reused, so that the overall energy consumption is reduced.
In some embodiments, the first tunnel kiln flue gas generated in the first tunnel kiln zone 3 enters the oil storage tank 12 under the action of the first induced draft fan 8. The first tunnel kiln smoke entering the oil storage tank 12 exchanges heat with the compressed air passing through the heat exchanger 11, the temperature of the first tunnel kiln smoke is reduced after heat exchange, and tar in the first tunnel kiln smoke is condensed. The condensed tar is stored in an oil storage tank 12, and the first tunnel kiln flue gas after temperature reduction is discharged into the atmosphere after pollutants in the first tunnel kiln flue gas are removed by a pollutant removal module 14.
In some embodiments, the heat exchanger 11 is disposed outside the oil reservoir 12. It is understood that the heat exchanger 11 is disposed outside the oil storage tank 12 to prevent condensed tar from being adsorbed on the tube wall of the heat exchanger 11 to affect the heat exchange effect.
The pollutant removal module 14 is used for removing NO in the flue gas X A contaminant-like substance. It is understood that the absorbent of contaminant removal module 14 may be activated carbon, but is not limited to activated carbon.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, schematic representations of the above terms may be directed to different 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a old and useless wind-powered electricity generation blade pyrolysis recovery unit of tunnel kiln formula which characterized in that includes:
the tunnel kiln comprises a tunnel kiln body, wherein the tunnel kiln body is divided into a first tunnel kiln section and a second tunnel kiln section arranged at the downstream of the first tunnel kiln section, an induction gate is arranged between the first tunnel kiln section and the second tunnel kiln section, the first tunnel kiln section and the second tunnel kiln section are both composed of a plurality of temperature control units, and the temperature of the temperature control units is controlled to be constant through electric heating;
the high-temperature-resistant conveyor belt drives the wind power blade to move in the tunnel kiln body, and the moving speed of the wind power blade in the tunnel kiln body is controlled by adjusting the belt speed of the high-temperature-resistant conveyor belt;
flue gas conveying system.
2. The apparatus of claim 1, wherein said wind blades are configured to cause pyrolysis and oxidation reactions within said first tunnel kiln zone and said second tunnel kiln zone, respectively, said first tunnel kiln zone having a temperature of 250-400 ℃ and said second tunnel kiln zone having a temperature of 400-550 ℃.
3. The apparatus of claim 1, wherein said wind blades dwell in said first tunnel kiln zone for a period of 30-60 minutes.
4. The apparatus of claim 1, wherein said wind blades are retained in said second tunnel kiln zone for a time of 1.5-5 hours.
5. The apparatus of claim 1, wherein the induction gate comprises a first induction gate and a second induction gate, the first induction gate and the second induction gate forming an isolation zone therebetween.
6. The apparatus of claim 1, wherein the flue gas delivery system comprises:
the air pump is used for conveying compressed air to the second tunnel kiln section;
the oil storage tank is used for storing tar;
a heat exchanger for preheating the compressed air;
a pollutant removal module for absorbing pollutants in the flue gas.
7. The apparatus according to claim 6, wherein a first tunnel kiln gas generated in the first tunnel kiln section is sent to the oil storage tank by a first induced draft fan, and the first tunnel kiln gas exchanges heat with the compressed air passing through the heat exchanger.
8. The apparatus according to claim 6, wherein the compressed air heat-exchanged by the heat exchanger is sent to the second tunnel kiln section by a blower.
9. The apparatus according to claim 1, wherein the second tunnel kiln flue gas generated in the second tunnel kiln section is introduced into the first tunnel kiln section by a second induced draft fan.
10. The apparatus of claim 6, wherein said heat exchanger is disposed outside of said oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222857163.4U CN218579886U (en) | 2022-10-27 | 2022-10-27 | Tunnel kiln type waste wind power blade pyrolysis recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222857163.4U CN218579886U (en) | 2022-10-27 | 2022-10-27 | Tunnel kiln type waste wind power blade pyrolysis recovery device |
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| CN218579886U true CN218579886U (en) | 2023-03-07 |
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| CN202222857163.4U Active CN218579886U (en) | 2022-10-27 | 2022-10-27 | Tunnel kiln type waste wind power blade pyrolysis recovery device |
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| CN (1) | CN218579886U (en) |
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- 2022-10-27 CN CN202222857163.4U patent/CN218579886U/en active Active
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