CN217356893U - Regeneration treatment furnace and waste regeneration treatment equipment - Google Patents

Abstract

The application provides a regeneration treatment furnace and waste regeneration treatment equipment, wherein the regeneration treatment furnace comprises a furnace shell, a furnace chamber, an air inlet assembly, a first exhaust assembly, a second exhaust assembly and a heating device, the furnace chamber is arranged in the furnace shell, and the furnace chamber is used for accommodating fiber reinforced composite waste; the air inlet component is arranged on the furnace shell and communicated with the furnace chamber, and is used for inputting superheated steam or hot air; the first exhaust assembly is arranged on the furnace shell and communicated with the furnace chamber; the second exhaust assembly is arranged on the furnace shell and communicated with the furnace chamber, and is used for exhausting pyrolysis gas; the heating device is arranged on the furnace shell, and the heating device and/or the superheated steam can heat the interior of the furnace cavity. The heat source of regeneration treatment stove includes heating device and superheated steam in this application, and meanwhile superheated steam also can regard as the protective atmosphere of discarded object thermal decomposition in-process, can effectively reduce energy consumption, also can guarantee thermal decomposition's efficiency, makes the fibre can be collected well, promotes the rate of recovery.

Description

Regeneration treatment furnace and waste regeneration treatment equipment

Technical Field

The application relates to the field of waste recycling equipment, in particular to a recycling furnace and waste recycling equipment.

Background

At present, the waste is treated by adopting a high-temperature incineration mode, however, the energy consumption of the existing incinerator is too high in the incineration process, the investment cost is too high, and the recovery rate of extractable substances in the incineration process is low, so that the recovery economy is too low.

SUMMERY OF THE UTILITY MODEL

In order to solve or at least partially solve the above technical problem, a first aspect of the present application provides a recycling furnace for fiber reinforced composite waste, the recycling furnace comprising:

a furnace shell;

the furnace chamber is arranged in the furnace shell and is used for accommodating fiber reinforced composite wastes;

the air inlet component is arranged on the furnace shell and communicated with the furnace chamber, and is used for inputting superheated steam or hot air;

the first exhaust assembly is arranged on the furnace shell and communicated with the furnace chamber;

the second exhaust assembly is arranged on the furnace shell and communicated with the furnace chamber, and is used for exhausting pyrolysis gas;

and the heating device is arranged on the furnace shell, and the heating device and/or the superheated steam can heat the interior of the furnace cavity.

The utility model provides a regeneration treatment stove includes stove outer covering, furnace chamber, admits air subassembly, first exhaust subassembly, second exhaust subassembly and heating device, and the furnace chamber is established inside the stove outer covering, and the furnace chamber is used for providing combustion space, and the fiber reinforcement combined material discarded object is placed in the furnace chamber to accomplish recovery processing in the furnace chamber.

The furnace shell is provided with an air inlet assembly, the air inlet assembly is communicated with the furnace cavity, and when the regeneration treatment furnace is in different working stages, superheated steam or hot air can be selectively introduced into the air inlet assembly. The regeneration treatment furnace comprises a first stage and a second stage, wherein in the first stage, superheated steam is conveyed into the furnace chamber through the air inlet assembly, the superheated steam can be used as a heating source and an anaerobic protection medium, anaerobic protection and heating can be carried out on fiber reinforced composite material waste positioned in the furnace chamber, and resin matrixes in the fiber reinforced composite material waste can be completely gasified, so that separation between fibers and matrix resin is realized. When the second stage is performed, the input of superheated steam is stopped, the furnace chamber is turned to input hot air, and the surface area carbon of the gasified fiber is completely removed by inputting high-temperature air heat flow, so that the recycled regenerated fiber has no carbon deposition residue and has a clean surface, and the strength of the recycled regenerated carbon fiber can reach more than 90% of that of the original carbon fiber.

Wherein, still be equipped with first exhaust subassembly and second exhaust subassembly on the stove outer covering, first exhaust subassembly is used for guaranteeing the pressure balance in the furnace chamber, guarantees the circulation of other gases except pyrolysis gas in the furnace chamber. The second exhaust assembly is used for discharging pyrolysis gas outwards, the pyrolysis gas refers to combustible organic micromolecular gas generated by decomposition of a resin matrix in the fiber reinforced composite waste, and the pyrolysis gas is toxic gas. Of course, the term "discharging the pyrolysis gas through the second exhaust assembly" refers to discharging the pyrolysis gas to a predetermined position relative to the furnace chamber, such as a heat energy conversion combustion furnace, so as to convert the toxic pyrolysis gas into clean high-temperature hot gas, which can be used to provide a heat source for the regeneration treatment furnace. The cracked gas can not be discharged to the external environment, and the environmental pollution can not be caused. That is, the toxic gas generated by the combustion decomposition of the fiber reinforced composite material waste in the furnace chamber can be separately guided out from the second exhaust assembly, and is independent from the first exhaust assembly for maintaining the pressure balance in the cranial cavity, so that the accurate control is convenient, and the subsequent treatment of the toxic gas can be simplified.

Still be equipped with heating device on the stove outer covering of regeneration treatment stove in this application, heating device also can heat the inside of furnace chamber, and superheated steam not only can heat the inside of furnace chamber, also can regard as the protective atmosphere among the fibre reinforced composite discarded object thermal decomposition process in addition, can effectively reduce energy consumption, also can guarantee the efficiency of thermal decomposition, makes the fibre can be collected well, promotes the rate of recovery.

It is worth noting that superheated steam generation may be dependent upon a superheated steam generator, and the heat source converted from cracked gas exhausted from the second exhaust assembly may be used to heat the superheated steam generator to facilitate superheated steam generation.

Optionally, the regeneration treatment furnace further comprises a control assembly, the control assembly is arranged on the furnace shell, and the control assembly is used for regulating and controlling the internal temperature of the furnace chamber and/or the internal pressure in the furnace chamber.

Optionally, the regeneration treatment furnace further comprises an inner shell, the inner shell is arranged inside the furnace shell, the inner shell is provided with a furnace chamber, a heating chamber which is not communicated with the furnace chamber is arranged between the inner shell and the furnace shell, and the heating device is positioned in the heating chamber; the control assembly comprises a first temperature sensor and a second temperature sensor, the first temperature sensor is used for detecting the temperature in the furnace cavity, and the second temperature sensor is used for detecting the temperature in the heating chamber.

Optionally, the regeneration treatment furnace further comprises a heat-supplementing air inlet which is arranged on the furnace shell and communicated with the heating chamber.

Optionally, one side of the furnace shell is provided with a material port; the regeneration treatment furnace further comprises: the furnace door is movably arranged on the furnace shell to open and close the material opening; the sealing piece is arranged on the furnace door, and the sealing piece is clamped between the furnace door and the furnace shell under the condition that the furnace door closes the material opening.

Optionally, the regenerative treatment furnace further comprises a cooling assembly disposed on one side of the seal.

Optionally, the regeneration treatment furnace further comprises an insulating layer, and the insulating layer is arranged between the inner shell and the furnace shell.

Optionally, the air inlet assembly and the second air outlet assembly are arranged on a side of the furnace shell facing away from the furnace door, and the first air outlet assembly is arranged on the top of the furnace shell.

Alternatively, the heating device includes a plurality of heating parts, which are uniformly disposed around the cavity.

A second aspect of the present application provides a waste recycling treatment apparatus, comprising the recycling treatment furnace according to any one of the above technical aspects.

The waste recycling treatment equipment in the application comprises the recycling treatment furnace provided by any one of the technical schemes, so that the waste recycling treatment equipment has all the beneficial effects of the recycling treatment furnace, and the details are not repeated.

Drawings

In order to more clearly describe the embodiments of the present application, a brief description will be given below of the relevant drawings. It is to be understood that the drawings in the following description are only intended to illustrate some embodiments of the present application, and that a person skilled in the art may also derive from these drawings many other technical features and connections etc. not mentioned herein.

Fig. 1 is a schematic structural diagram of a regenerative treatment furnace according to the present application.

The reference numbers and designations in the drawings are as follows:

10. a furnace shell; 11. a furnace chamber; 12. an inner shell; 13. a heating chamber;

14. an air intake assembly;

15. a first exhaust assembly;

16. a second exhaust assembly;

17. a heating device;

18. a control component;

19. a furnace door;

20. a heat-insulating layer;

21. a skip car; 22. fiber reinforced composite waste.

Detailed Description

The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application.

The inventor of the application finds that the waste is often treated by high-temperature incineration in the prior art, however, the existing incinerator has too high energy consumption and too high investment cost in the incineration process, and the recovery rate of extractable substances in the incineration process is low, so that the recovery economy is too low.

In view of this, referring to fig. 1 below, in the regeneration furnace provided in the present application, both the heating device 17 and the superheated steam can be used as heat sources, and at the same time, the superheated steam can also be used as a protective atmosphere in the thermal decomposition process of the fiber reinforced composite material waste 22, so that energy consumption can be effectively reduced, the thermal decomposition efficiency can also be ensured, the fibers can be well collected, and the recovery rate can be improved.

Implementation mode one

The embodiment of the first aspect of the present application provides a regeneration treatment furnace for fiber reinforced composite waste 22, the regeneration treatment furnace includes a furnace shell 10, a furnace chamber 11, an air intake assembly 14, a first exhaust assembly 15, a second exhaust assembly 16 and a heating device 17, the furnace chamber 11 is disposed in the furnace shell 10, and the furnace chamber 11 is used for accommodating the fiber reinforced composite waste 22; the air inlet component 14 is arranged on the furnace shell 10 and is communicated with the furnace chamber 11, and the air inlet component 14 is used for inputting superheated steam or hot air; the first exhaust assembly 15 is arranged on the furnace shell 10 and communicated with the furnace chamber 11; the second exhaust assembly 16 is arranged on the furnace shell 10 and communicated with the furnace chamber 11, and the second exhaust assembly 16 is used for exhausting pyrolysis gas; a heating device 17 is provided on the furnace shell 10, the heating device 17 and/or superheated steam being capable of heating the interior of the furnace chamber 11.

The regeneration treatment furnace comprises a furnace shell 10, a furnace chamber 11, an air inlet assembly 14, a first exhaust assembly 15, a second exhaust assembly 16 and a heating device 17, wherein the furnace chamber 11 is arranged inside the furnace shell 10, the furnace chamber 11 is used for providing a combustion space, and fiber reinforced composite waste 22 is placed in the furnace chamber 11 and is recycled in the furnace chamber 11.

Wherein, the furnace shell 10 is provided with an air inlet assembly 14, the air inlet assembly 14 is communicated with the furnace chamber 11, and when the regeneration treatment furnace is in different working stages, the air inlet assembly 14 can selectively introduce superheated steam or hot air. The recycling furnace comprises a first stage and a second stage, wherein in the first stage, superheated steam is conveyed into the furnace chamber 11 through the air inlet assembly 14, the superheated steam can be used as a heating source and an anaerobic protection medium, anaerobic protection and heating can be performed on the fiber reinforced composite material waste 22 in the furnace chamber 11, and the resin matrix in the fiber reinforced composite material waste 22 can be completely gasified, so that separation between fibers and matrix resin is realized. In the second stage, the input of superheated steam is stopped, the furnace chamber 11 is turned to input hot air, and the surface area carbon of the gasified fiber is completely removed by inputting high-temperature air heat flow, so that the recycled regenerated fiber has no carbon deposition residue and has a clean surface, and the strength of the recycled regenerated carbon fiber can reach more than 90% of that of the original carbon fiber. It should be noted that in the second stage, the source of hot air may be provided by a separate hot air delivery device or by a heat energy conversion burner.

Wherein, still be equipped with first exhaust subassembly 15 and second exhaust subassembly 16 on stove outer covering 10, first exhaust subassembly 15 is used for guaranteeing the pressure balance in furnace chamber 11, guarantees the circulation of other gases except pyrolysis gas in furnace chamber 11. The second exhaust assembly 16 is configured to exhaust pyrolysis gas outwards, where the pyrolysis gas is combustible organic small molecule gas generated by decomposition of a resin matrix in the fiber reinforced composite waste 22, that is, the pyrolysis gas is toxic gas. Of course, the term "discharging the pyrolysis gas through the second exhaust assembly 16" refers to discharging the pyrolysis gas to a predetermined position, such as a heat energy conversion burner, so as to convert the harmful pyrolysis gas into clean high-temperature hot gas, which can be used to provide a heat source for the regeneration furnace. The cracked gas can not be discharged to the external environment, and the environmental pollution can not be caused. That is, the toxic gas generated by the combustion decomposition of the fiber reinforced composite material waste 22 in the furnace chamber 11 can be separately guided out from the second exhaust assembly 16, and is independent from the first exhaust assembly 15 for maintaining the pressure balance in the cranial cavity, so that the accurate control is facilitated, and the subsequent treatment of the toxic gas can be simplified.

Still be equipped with heating device 17 on the stove outer covering 10 of regeneration treatment stove in this application, heating device 17 also can heat the inside of furnace chamber 11, and superheated steam not only can heat the inside of furnace chamber 11, but also can regard as the protective atmosphere among the fibre reinforced composite discarded object 22 thermal decomposition process, can effectively reduce energy consumption, also can guarantee the efficiency of thermal decomposition, makes the fibre can be collected well, promotes the rate of recovery.

It is worth noting that superheated steam generation may be dependent upon a superheated steam generator, and the heat source converted from cracked gases exiting second exhaust assembly 16 may be used to heat the superheated steam generator to facilitate superheated steam generation.

Optionally, the regeneration treatment furnace further comprises a control assembly 18, the control assembly 18 being arranged on the furnace shell 10, the control assembly 18 being adapted to regulate the internal temperature of the furnace chamber 11 and/or the internal pressure within the furnace chamber 11.

In the embodiment of the present application, the regeneration treatment furnace further includes a control component 18, the control component 18 is disposed on the furnace shell 10, and the control component 18 is configured to regulate and control the internal temperature of the furnace chamber 11, so as to ensure that the fiber reinforced composite waste 22 located inside the furnace chamber 11 can be separated from the resin matrix at a suitable temperature, thereby realizing the recycling of the regenerated fiber.

Specifically, in the first stage, when the regeneration treatment furnace is used for the fiber reinforced composite material waste 22, the superheated steam introduced into the furnace chamber 11 of the regeneration treatment furnace is micro-oxygen superheated steam with the temperature of 400-700 ℃ at normal pressure, and the superheated steam carries out anaerobic protection and heating on the carbon fiber reinforced composite material for 1-6 hours, so that the resin matrix in the fiber reinforced composite material waste 22 can be completely gasified, and the separation of the fiber filaments from the resin matrix in the carbon fiber reinforced composite material waste 22 is realized. Wherein the fibers comprise carbon fibers.

In the second stage, the temperature in the furnace chamber 11 can be controlled to be 400-500 ℃ by the control assembly 18, hot compressed air is input, carbon deposition on the surface of the gasified fiber reinforced composite material waste 22 can be completely removed by high-temperature air heat flow, the recycled regenerated carbon fiber has no carbon deposition residue, the surface is clean, and the strength of the recycled regenerated carbon fiber can reach more than 90% of that of the original carbon fiber.

That is to say, in the working process of the regeneration treatment furnace, the temperature and the pressure inside the regeneration treatment furnace are not constant but adjusted according to different stages, and the control assembly 18 can ensure that the temperature and the pressure inside the furnace chamber 11 can be within a reasonable range, so that the recovery efficiency of the carbon fibers in the waste of the fiber reinforced composite material is greatly improved.

Optionally, the regeneration treatment furnace further comprises an inner shell 12, the inner shell 12 is arranged inside the furnace shell 10, the inner shell 12 is provided with a furnace cavity 11, a heating chamber 13 which is not communicated with the furnace cavity 11 is arranged between the inner shell 12 and the furnace shell 10, and a heating device 17 is arranged in the heating chamber 13; the control assembly 18 includes a first temperature sensor for sensing a temperature within the cavity 11 and a second temperature sensor for sensing a temperature within the heating chamber 13.

In the embodiment of the present application, the recycling furnace further includes an inner shell 12, the inner shell 12 is disposed inside the furnace shell 10, it can be understood that the inner shell 12 is disposed inside the furnace shell 10, the inner shell 12 can form a furnace chamber 11, that is, the fiber reinforced composite waste 22 is disposed inside the inner shell 12, a heating chamber 13 is disposed between the inner shell 12 and the furnace shell 10, that is, between an outer wall of the inner shell 12 and an inner wall of the furnace shell 10, the heating chamber 13 and the furnace chamber 11 are two relatively independent spaces isolated from each other by the inner shell 12, the heating device 17 is disposed inside the heating chamber 13, the heating device 17 generates heat in the heating chamber 13, and the heat can be transferred to the inside of the furnace chamber 11 through the inner shell 12, thereby achieving the purpose of heating the fiber reinforced composite waste 22 inside the furnace chamber 11.

Wherein, the control assembly 18 includes a first temperature sensor and a second temperature sensor, the first temperature sensor is used for detecting the temperature in the furnace chamber 11, specifically, the number of the first temperature sensors is 2, and 2 first temperature sensors are respectively arranged at two sides of the inner casing 12. The second temperature sensors are used for detecting the temperature of the heating chamber 13, and specifically, the number of the second temperature sensors is 2, and 2 second temperature sensors are respectively arranged at the front and rear sides of the heating chamber 13, that is, the number of the temperature sensors is 4 in total. Since the temperature in the furnace chamber 11 is also controlled by the heat provided by the heating chamber 13, the temperatures of the furnace chamber 11 and the heating chamber 13 are correlated, and in order to realize precise control of the temperature in the furnace chamber 11, the first temperature sensor and the second temperature sensor are adopted to respectively detect the temperatures in the furnace chamber 11 and the heating chamber 13, so as to maximally eliminate temperature inertia in the heating process, thereby realizing uniform distribution of the temperature in the furnace chamber 11.

Optionally, the regeneration treatment furnace further comprises a heat-supplementing air inlet which is provided on the furnace shell 10 and communicates with the heating chamber 13.

In the embodiment of the application, the carbon fiber reinforced composite waste 22 is combusted in the furnace chamber 11, the generated pyrolysis gas is discharged into the heat energy conversion combustion furnace through the second exhaust assembly 16, the pyrolysis gas is fully combusted in the heat energy conversion combustion furnace and is converted into the virtuous and clean high-temperature hot gas, the clean high-temperature hot gas can enter the heating chamber 13 through the heat supplementing air inlet, so that the inside of the furnace chamber 11 is heated, the heat energy generated by the pyrolysis gas can be recycled, the cost is effectively reduced, and the development trend of green and environmental protection is met.

Second embodiment

The inventor of the present application has found that when the sealing performance of the furnace chamber 11 and the sealing performance of the heating chamber 13 cannot be ensured, not only the fiber reinforced composite material waste 22 in the furnace chamber 11 cannot be effectively thermally decomposed, but also the waste generated in the cracking process of the fiber reinforced composite material waste 22 may leak and cause environmental pollution.

To this end, a second embodiment of the present application proposes a regenerative treatment furnace in which one side of the furnace shell 10 has a material port; the regeneration treatment furnace also comprises a furnace door 19 and a sealing element, wherein the furnace door 19 is movably arranged on the furnace shell 10 to open and close the material port; the seal is arranged on the oven door 19 and is sandwiched between the oven door 19 and the oven housing 10 in case the oven door 19 closes the loading opening.

In the embodiment of the present application, one side of the furnace shell 10 has a material opening, from which the fiber reinforced composite material waste 22 can be transported into the furnace chamber 11 by means of a skip 21. The regeneration treatment furnace also comprises a furnace door 19 and a sealing member, wherein the furnace door 19 is movably arranged on the furnace shell 10, and the furnace door 19 moves relative to the furnace shell 10 so as to realize the opening or closing of the material opening. The sealing element is arranged on the furnace door 19, and is clamped between the furnace door 19 and the furnace shell 10 under the condition that the furnace door 19 closes the material opening, and the sealing element can effectively seal a gap between the furnace door 19 and the furnace shell 10, so that gas in the cracking process cannot leak outwards along one side of the furnace door 19 in the working process of the regeneration treatment furnace, and the safety use performance of the regeneration treatment furnace is ensured.

Optionally, the sealing element is a lock ring type sealing structure, and the sealing performance is excellent.

Optionally, the regeneration treatment furnace further comprises a cooling assembly, the cooling assembly is arranged on one side of the sealing element, and the cooling assembly can cool the sealing element, so that the problem of damage to the sealing element due to overhigh temperature is avoided.

Optionally, the cooling assembly is a water cooling assembly, so that the cost is low and the implementation is easy.

It is worth mentioning that when the oven door 19 is closed, the oven door 19 and the sealing member can be tightly pressed on the oven shell 10 and the inner shell 12 through the hydraulic system, so that the gas in the oven cavity 11 is difficult to leak out from one side of the oven door 19.

Third embodiment

The inventor of the present application has found that when the heat preservation performance of the regeneration treatment furnace is not excellent enough, the heat in the furnace chamber 11 is diffused from the furnace shell 10, and the heat cannot be effectively cracked by the fiber reinforced composite material waste 22, resulting in unnecessary loss of heat.

To this end, the third embodiment of the present application proposes a regeneration treatment furnace, which further includes an insulating layer 20, and the insulating layer 20 is disposed between the inner shell 12 and the furnace shell 10.

In the embodiment of the application, the heat preservation layer 20 is arranged on the inner wall of the furnace shell 10, the fiber reinforced composite material waste 22 can be fully combusted in the combustion area formed by the heat preservation layer 20, the generated heat cannot be easily transmitted to the external environment through the heat preservation layer 20, the fiber reinforced composite material waste 22 is effectively cracked under the stable temperature environment, the resin matrix in the fiber reinforced composite material waste 22 can be effectively gasified, the cracked gas is generated, and the extraction of carbon fibers is facilitated.

Alternatively, the air inlet assembly 14 and the second air outlet assembly 16 are arranged on the side of the furnace shell 10 facing away from the oven door 19, and the first air outlet assembly 15 is arranged on top of the furnace shell 10.

In the embodiment of the present application, the air intake assembly 14 and the second air exhaust assembly 16 are disposed on the side of the furnace shell 10 away from the furnace door 19, that is, the air intake assembly 14 and the second air exhaust assembly 16 can be disposed on the back side of the furnace shell 10, and the first air exhaust assembly 15 is disposed on the top of the furnace shell 10, so that the air intake assembly 14, the second air exhaust assembly 16 and the first air exhaust assembly 15 can be reasonably distributed on the furnace shell 10, and the structural strength is prevented from being significantly affected.

Alternatively, the heating device 17 includes a plurality of heating parts which are uniformly disposed around the cavity 11.

In an embodiment of the present application, the heating device 17 comprises a plurality of heating portions, optionally the heating portions comprise electric heating tubes. The plurality of heating parts are uniformly arranged around the furnace chamber 11, so that the effective heating areas can be vertically distributed on two sides of the outer side of the inner shell 12 forming the furnace chamber 11 from top to bottom, and more uniform heat can be provided for the inner part of the furnace chamber 11.

It is worth mentioning that the heating source for the fiber reinforced composite material waste 22 inside the furnace chamber 11 may include superheated steam, the heating device 17 and clean high temperature hot gas entering the heating chamber 13 from the supplementary heat inlet. When the pyrolysis gas is not generated in the initial stage of the reaction of the fiber reinforced composite waste 22 in the furnace chamber 11, or the flow rate of the pyrolysis gas is relatively small, the heat source is mainly provided by the heating device 17, when the pyrolysis gas is generated and converted into clean high-temperature hot gas by the heat energy conversion furnace, the high-temperature hot gas is conveyed into the heating chamber 13 and serves as a main heat source, at this time, the heating device 17 can serve as an auxiliary heat source, and the heating device 17 and the high-temperature hot gas are used simultaneously to provide sufficient heat for the thermal cracking of the fiber reinforced composite waste 22.

Example IV

A second aspect of the present application provides a waste recycling apparatus comprising a recycling furnace according to any one of the above embodiments.

The waste recycling treatment equipment in the application comprises the recycling treatment furnace provided in any one of the above embodiments, so that the waste recycling treatment equipment has all the beneficial effects of the recycling treatment furnace, and the details are not repeated.

Optionally, a waste recycling facility is used for recycling the fiber reinforced composite waste 22.

High-temperature superheated steam generated by the superheated steam generator enters the furnace chamber 11 through the air inlet assembly 14 through a pipeline, the fiber reinforced composite material waste 22 placed in the furnace chamber 11 is heated and protected without oxygen, and the resin matrix in the fiber reinforced composite material waste 22 is gradually vaporized and decomposed along with the rise of the temperature, so that the separation of the carbon fiber filaments from the resin matrix in the fiber reinforced composite material waste 22 is realized. Pyrolysis gas, i.e., a mixture of combustible organic small molecule gas and superheated steam, decomposed by the resin matrix is discharged into the heat energy conversion burner through the second exhaust assembly 16.

The pyrolysis gas is fully combusted in the heat energy conversion furnace to generate a high-temperature clean heat source, and the high-temperature clean heat source can be conveyed into a heating chamber 13 of the regeneration treatment furnace or a superheated steam generator, so that the cyclic utilization of heat energy is realized.

It is worth to say that the regeneration treatment furnace is in a normal pressure or a slight negative pressure state and is in an oxygen-free/oxygen-poor state, so that potential safety hazards caused by high temperature of organic waste gas generated in the regeneration treatment process are avoided. And the fiber reinforced composite material wastes 22 with different specifications can be treated in batches, a clean heat source provided by a heat energy conversion combustion path is used for auxiliary heating, the operation cost is low, and the recycled regenerated fiber which is clean, has no carbon deposition residue and has the strength of more than 90 percent of the original carbon fiber is obtained.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A reprocessing furnace for fiber reinforced composite waste (22), said reprocessing furnace comprising:

a furnace shell (10);

the furnace chamber (11) is arranged in the furnace shell (10), and the furnace chamber (11) is used for accommodating the fiber reinforced composite material waste (22);

the air inlet assembly (14) is arranged on the furnace shell (10) and is communicated with the furnace chamber (11), and the air inlet assembly (14) is used for inputting superheated steam or hot air;

the first exhaust assembly (15) is arranged on the furnace shell (10) and is communicated with the furnace chamber (11);

the second exhaust assembly (16) is arranged on the furnace shell (10) and communicated with the furnace chamber (11), and the second exhaust assembly (16) is used for exhausting pyrolysis gas;

and the heating device (17) is arranged on the furnace shell (10), and the heating device (17) and/or the superheated steam can heat the interior of the furnace chamber (11).

2. The regenerative treatment furnace of claim 1, further comprising:

a control assembly (18) arranged on the furnace shell (10), the control assembly (18) being configured to regulate an internal temperature of the furnace chamber (11) and/or an internal pressure within the furnace chamber (11).

3. The regenerative treatment furnace of claim 2, further comprising:

the inner shell (12) is arranged inside the furnace shell (10), the inner shell (12) is provided with the furnace cavity (11), a heating chamber (13) which is not communicated with the furnace cavity (11) is arranged between the inner shell (12) and the furnace shell (10), and the heating device (17) is positioned in the heating chamber (13);

the control assembly (18) comprises a first temperature sensor for detecting a temperature within the oven cavity (11) and a second temperature sensor for detecting a temperature within the heating chamber (13).

4. The regenerative treatment furnace of claim 3, further comprising:

and the heat supplementing air inlet is arranged on the furnace shell (10) and is communicated with the heating chamber (13).

5. The regenerative treatment furnace according to claim 3,

one side of the furnace shell (10) is provided with a material port;

the regeneration treatment furnace further comprises:

the furnace door (19) is movably arranged on the furnace shell (10) to open and close the material port;

and the sealing element is arranged on the furnace door (19), and is clamped between the furnace door (19) and the furnace shell (10) under the condition that the furnace door (19) closes the material opening.

6. The regenerative treatment furnace of claim 5, further comprising:

and the cooling assembly is arranged on one side of the sealing piece.

7. The regenerative treatment furnace of claim 5, further comprising:

and the insulating layer (20) is arranged between the inner shell (12) and the furnace shell (10).

8. The regenerative treatment furnace according to any of claims 5 to 7,

the gas inlet assembly (14) and the second gas exhaust assembly (16) are arranged on one side, deviating from the furnace door (19), of the furnace shell (10), and the first gas exhaust assembly (15) is arranged on the top of the furnace shell (10).

9. The regenerative treatment furnace according to any of claims 1 to 7,

the heating device (17) includes a plurality of heating parts which are uniformly arranged around the cavity (11).

10. A waste recycling apparatus, comprising: a regenerative treatment furnace according to any of claims 1 to 9.

Images