CN115770782A

CN115770782A - Waste regeneration treatment equipment

Info

Publication number: CN115770782A
Application number: CN202211459392.9A
Authority: CN
Inventors: 朱永奎; 戴永珍; 张瀚鹏; 丁文江; 朱悦; 钱敬; 殷杰; 林仁洲
Original assignee: Shanghai Zhishi Alloy Science & Technology Co ltd
Current assignee: Shanghai Zhishi Alloy Science & Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-11-16
Publication date: 2023-03-10
Also published as: CN218914944U; CN117072975A

Abstract

The application provides a waste regeneration treatment equipment for fibre reinforced composite waste, waste regeneration treatment equipment includes regeneration treatment stove, superheated steam generator and heat energy conversion combustion furnace, regeneration treatment stove includes the treatment furnace chamber, the treatment furnace chamber is used for holding fibre reinforced composite waste, superheated steam generator can with the treatment furnace chamber intercommunication, and to carry superheated steam in the treatment furnace chamber, heat energy conversion combustion furnace, respectively with the treatment furnace chamber, superheated steam generator intercommunication, heat energy conversion combustion furnace can be to coming from the pyrolysis gas of treatment furnace chamber ignites and forms nontoxic steam, and can with nontoxic steam carries to superheated steam generator and/or regeneration treatment stove. The cost that the discarded object regeneration treatment facility provided in this application had practiced thrift the fibre and retrieved, realized fibrous not damaged and retrieved, recovery process has tail gas zero release, zero characteristics of polluting simultaneously.

Description

Waste regeneration treatment equipment

Technical Field

The application relates to the field of material waste recovery, in particular to waste regeneration treatment equipment.

Background

The carbon fiber composite material has the advantages of light weight, high strength, high modulus, corrosion resistance and the like, and is widely applied to the fields of aerospace, sports and leisure, automobiles, buildings, bridge reinforcement and the like. At present, the carbon fiber composite material in China still mainly takes thermosetting resin base, the market occupancy is more than 90%, and the thermosetting resin base composite material can not be degraded under natural conditions. Therefore, it is urgent to develop a large-scale, continuous, low-cost, low-energy-consumption recovery and recycling technology to realize sustainable, green and low-carbon development of the industry.

Disclosure of Invention

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

the regeneration treatment furnace comprises a treatment furnace chamber, and the treatment furnace chamber is used for accommodating fiber reinforced composite wastes;

the superheated steam generator can be communicated with the treatment furnace cavity and used for delivering superheated steam into the treatment furnace cavity;

the heat energy conversion combustion furnace is respectively communicated with the treatment furnace chamber and the superheated steam generator, can ignite pyrolysis gas from the treatment furnace chamber to form nontoxic hot gas, and can convey the nontoxic hot gas to the superheated steam generator and/or the regeneration treatment furnace.

The application provides a waste regeneration device, a be used for fibre reinforced composite discarded object, waste regeneration device includes the regeneration treatment stove, superheated steam generator and heat energy conversion combustion furnace, the regeneration treatment stove is including handling the furnace chamber, it is used for holding fibre reinforced composite discarded object to handle the furnace chamber, fibre reinforced composite discarded object is heated in handling the furnace chamber, resin base member and fibre separation, resin base member vaporization decomposition produces pyrolysis gas, pyrolysis gas is carried and is fully burnt in the heat energy conversion combustion furnace, thereby obtain clean heat source. The superheated steam generator can be communicated with the treatment furnace cavity and used for delivering superheated steam into the treatment furnace cavity; superheated steam generated by the superheated steam generator can be used as protective gas, so that the effect of isolating oxygen can be achieved, and harmful gas is prevented from being generated due to the reaction of resin in carbon fiber reinforced composite waste and oxygen. Meanwhile, the superheated steam can also be used as a heat transfer medium for separating carbon fibers from matrix resin in the carbon fiber reinforced composite waste, so that the regenerated carbon fibers which are clean, have no carbon deposit residue, have the strength of more than 90 percent of the original carbon fibers and have excellent performance are obtained. The heat energy conversion combustion furnace is respectively communicated with the treatment furnace chamber and the superheated steam generator, can ignite pyrolysis gas from the treatment furnace chamber to form nontoxic hot gas, and can convey the nontoxic hot gas to the superheated steam generator and/or the regeneration treatment furnace.

The discarded object regeneration treatment facility that provides in this application passes through superheated steam to fibre reinforcement combined material discarded object heating and anaerobic protection, guarantee that fibre reinforcement combined material discarded object can obtain effective thermal cracking, and the pyrolysis gas that produces after the thermal cracking can be by in the heat energy conversion burner by abundant burning and generate clean heat source, clean heat source can provide the heat source for superheated steam generator and/or regeneration treatment stove, the cost of fibre recovery has been practiced thrift, realize fibrous not damaged recovery, recovery process has the tail gas zero release simultaneously, zero pollution's characteristics.

After being conveyed to the regeneration treatment furnace, the clean heat source generated in the heat energy conversion combustion furnace can be used as a heating heat source and can also be used for removing carbon deposition on the surface of carbon fiber, so that the heat source recovered by the heat energy conversion combustion furnace can play more roles, and the cost is further reduced.

Optionally, the regeneration treatment furnace comprises a treatment furnace shell, an air inlet assembly, a first exhaust assembly, a second exhaust assembly and a heating device, and the treatment furnace cavity is arranged in the treatment furnace shell; the air inlet component is arranged on the processing furnace shell and communicated with the processing furnace cavity, and the superheated steam generator can pass through the air inlet componentIs communicated with the processing furnace chamber to convey superheated steam into the processing furnace chamber; first exhaust group The piece is arranged on the processing furnace shell and is communicated with the processing furnace cavity; first, theThe second exhaust assembly is arranged on the treatment furnace shell and is communicated with the treatment furnace cavity, and the treatment furnace cavity can be communicated with the heat energy conversion combustion furnace through the second exhaust assembly so as to exhaust the pyrolysis gas into the heat energy conversion combustion furnace; the heating device is arranged on the processing furnace shell,the heating device can heat the inside of the processing furnace chamber.

Optionally, the regeneration treatment furnace further comprises a control assembly disposed on the treatment furnace shell, the control assembly being configured to regulate an internal temperature of the treatment furnace chamber and/or an internal pressure within the treatment furnace chamber.

Optionally, the regeneration treatment furnace further comprises: the inner shell is arranged inside the treatment furnace shell, the inner shell is provided with a treatment furnace cavity, a heating chamber which is not communicated with the treatment furnace cavity is arranged between the inner shell and the treatment 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 processing furnace cavity, and the second temperature sensor is used for detecting the temperature in the heating chamber.

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

Optionally, one side of the treatment furnace shell is provided with a material port; the regeneration treatment furnace also comprises a furnace door and a sealing element, wherein the furnace door is movably arranged on the treatment furnace shell to open and close the material port; the sealing element is arranged on the furnace door, and is clamped between the furnace door and the processing 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 regenerative treatment furnace further comprises a first insulating layer disposed between the inner shell and the treatment furnace shell.

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

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

Optionally, the superheated steam generator comprises an inner container, an outer container and a heating element, wherein the inner container is provided with a mounting cavity; the outer liner is arranged on one side of the inner liner, which is far away from the mounting cavity, and a steam channel is arranged between the outer liner and the inner liner; at least a portion of the heating element is positioned within the mounting cavity; wherein, the control assembly of the waste regeneration treatment equipment further comprises a temperature control part, and the temperature control part is connected with the heating element.

Optionally, the heating member comprises a first heating member and a second heating member, and the temperature control member is provided on the first heating member and/or the second heating member; the steam passage includes: a first steam passage including an inlet, a first heating element for heating the first steam passage; and the second steam channel is communicated with the first steam channel and comprises a steam outlet, and the second heating element is used for heating the second steam channel.

Optionally, at least a portion of the second steam path extends in a tortuous manner with respect to the first steam path.

Optionally, the first steam channel extends in a first direction; the second steam passage comprises a communication passage and a steam discharge passage, the steam discharge passage is communicated with the first steam passage through the communication passage, the steam discharge passage extends along a first direction, and the communication passage extends along a second direction different from the first direction.

Optionally, the superheated steam generator further comprises: the generator shell is provided with an assembly cavity, and at least one part of the inner container and at least one part of the outer container are positioned in the assembly cavity; and the second insulating layer is arranged in the assembly cavity and is positioned between the outer container and the generator shell.

Optionally, the superheated steam generator further comprises: and the reinforcing ribs are arranged on the generator shell at intervals.

Optionally, the superheated steam generator further comprises: and the drainage assembly can be communicated with the steam channel.

Optionally, the thermal energy-conversion furnace comprises a converter hood having a converter furnace cavity, a first burner, a second burner, and a third exhaust assembly; the first burner is arranged on the conversion furnace shell and communicated with the conversion furnace cavity, and the first burner is used for igniting pyrolysis gas; the second burner is arranged on the conversion furnace shell and communicated with the conversion furnace cavity, and the second burner is used for igniting gas; and the third exhaust assembly is arranged on the conversion furnace shell and communicated with the conversion furnace cavity.

Optionally, the first burner and the third exhaust assembly are disposed on opposite sidewalls of the converter shell.

Optionally, the second burner is disposed on a top wall of the converter shell.

Optionally, the third exhaust assembly comprises: at least two exhaust ports are arranged on the conversion furnace shell; and the switching valve is arranged at the at least two exhaust ports, and the at least two exhaust ports can be communicated with the conversion furnace chamber through the switching valve.

Optionally, the control assembly of the waste recycling apparatus is further adapted to regulate an internal temperature of the conversion furnace chamber and/or an internal pressure of the conversion furnace chamber.

Optionally, the heat conversion burner further comprises: and the safety cap is arranged on the conversion furnace shell.

Optionally, the heat conversion burner further comprises: and the dropping liquid hole is arranged on the conversion furnace shell.

Optionally, the heat conversion burner further comprises: and the third insulating layer is arranged on the inner wall of the converter shell.

Optionally, a perspective window is arranged on the conversion furnace shell, and the perspective window is detachably arranged on the conversion furnace shell.

Optionally, the waste recycling apparatus further comprises: the hot air conveying device can be communicated with the treatment furnace chamber and conveys hot air into the treatment furnace chamber; wherein the hot air delivery device and the superheated steam generator are alternatively communicated with the treatment furnace chamber.

Optionally, the hot air delivery device further comprises: a housing comprising a heat exchange cavity; the first air inlet and the first air outlet are respectively arranged on the shell and are communicated with the heat exchange cavity, and the first air inlet is used for inputting air to be heated; and the second air inlet and the second air outlet are respectively arranged on the shell and are communicated with the heat exchange cavity, and the second air inlet is used for inputting hot air.

Optionally, the first air inlet and the first air outlet are respectively arranged on two adjacent wall surfaces of the housing; and/or the second air inlet and the second air outlet are respectively arranged on two adjacent wall surfaces of the shell.

Optionally, the housing comprises: the top wall and the bottom wall are arranged along the up-down direction, the second air inlet is formed in the bottom wall, and the first air outlet is formed in the top wall; a plurality of side walls provided between the top wall and the bottom wall, the first air inlet provided on one of the plurality of side walls, and the second air outlet provided on the other of the plurality of side walls.

Optionally, the first air inlet and the second air outlet are coaxially arranged; and/or the second air inlet and the first air outlet are coaxially arranged.

Optionally, a cross-sectional flow area of any one of the first gas inlet and the first gas outlet is smaller than a cross-sectional flow area of any one of the second gas inlet and the second gas outlet.

Optionally, the hot air delivery device further comprises: the first air inlet pipe is arranged on the shell and communicated with the heat exchange cavity through a first air inlet; and/or the first air outlet pipe is arranged on the shell and is communicated with the heat exchange cavity through the first air outlet; and/or a second air inlet pipe which is arranged on the shell and communicated with the heat exchange cavity through a second air inlet; and/or a second air outlet pipe which is arranged on the shell and is communicated with the heat exchange cavity through a second air outlet.

Optionally, the hot air delivery device further comprises: and the fourth heat-insulating layer is arranged on the shell and is positioned in the heat exchange cavity.

Optionally, the hot air delivery device further comprises: the supporting piece is arranged on the shell.

Optionally, the support is provided on a bottom wall of the housing.

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 understood that the drawings in the following description are only for illustrating some embodiments of the present application, and that those skilled in the art can also obtain many other technical features and connections, etc. that are not mentioned herein according to these drawings.

Fig. 1 is a schematic structural diagram of a waste recycling apparatus provided in the present application.

Fig. 2 is a schematic structural diagram of another waste recycling device provided in the present application.

Fig. 3 is a schematic structural diagram of a regenerative treatment furnace according to the present application.

Fig. 4 is a schematic structural diagram of a superheated steam generator provided by the present application.

Fig. 5 is a schematic structural diagram of a thermal energy conversion combustion furnace provided in the present application.

Fig. 6 is a schematic structural diagram of a hot air delivery device provided in the present application.

The reference numerals and names in the figures are as follows:

1 a regeneration treatment furnace; 110. treating the furnace shell; 111. a treatment furnace chamber; 112. an inner shell; 113. a heating chamber; 114. an air intake assembly; 115. a first exhaust assembly; 116. a second exhaust assembly; 117. a heating device; 118. a control component; 119. a furnace door; 120. a first insulating layer; 121. a skip car; 122. fiber reinforced composite waste;

2. a superheated steam generator; 21. an inner container; 22. an outer liner; 231. a first steam passage; 232. a second steam channel; 233. a communication channel; 234. a steam exhaust channel; 235. an inlet; 236 a vapor outlet; 24. a heating element; 241. a first heating member; 242. a second heating member; 25. a temperature control member; 26. a generator housing; 27. a second insulating layer; 28. reinforcing ribs; 29. a drainage assembly;

3. a thermal energy conversion combustion furnace; 310. converting the furnace shell; 311. converting the furnace chamber; 312. a first burner; 313. a second burner; 314. a third exhaust assembly; 316. a safety cap; 317. a drip hole; 318. a third insulating layer; 319. a perspective window; 320. a base.

4. A hot air delivery device; 41. a housing; 411. a heat exchange cavity; 421 a first air inlet pipe; 422 a first air outlet pipe; 423 a second intake pipe; 424 a second outlet pipe; 43 a fourth insulating layer; 44 support member.

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 recycling technology of the carbon fiber composite waste in the prior art still stays in a primary stage, cannot adapt to industrial requirements, and needs a large-scale, continuous, low-cost and low-energy-consumption recycling and reusing technology to realize sustainable, green and low-carbon development of the industry.

In view of this, referring to fig. 1 and fig. 2 below, the waste recycling device provided in the present application heats and protects fiber reinforced composite waste without oxygen through superheated steam, so as to ensure that the fiber reinforced composite waste can be thermally cracked effectively, and cracked gas generated after thermal cracking can be sufficiently combusted in the thermal energy conversion combustion furnace 3 to generate a clean heat source, and the clean heat source can provide a heat source for the superheated steam generator 2 and/or the recycling furnace 1, so as to save the cost of fiber recycling, achieve non-destructive recycling of fiber, and meanwhile, the recycling process has the characteristics of zero emission of tail gas and zero pollution.

Implementation mode one

The application provides a waste regeneration treatment equipment for fibre reinforced composite discarded object, waste regeneration treatment equipment includes:

the regeneration treatment furnace 1, the regeneration treatment furnace 1 includes a treatment furnace chamber, the treatment furnace chamber is used for holding fiber reinforced composite material waste;

the superheated steam generator 2 can be communicated with the treatment furnace cavity and used for delivering superheated steam into the treatment furnace cavity;

the heat energy conversion combustion furnace 3 is respectively communicated with the treatment furnace chamber and the superheated steam generator 2, the heat energy conversion combustion furnace 3 can ignite pyrolysis gas from the treatment furnace chamber to form nontoxic hot gas, and the nontoxic hot gas can be conveyed to the superheated steam generator 2 and/or the regeneration treatment furnace 1.

The application provides a waste regeneration device, a be used for fibre reinforced composite discarded object, waste regeneration treatment device includes regeneration treatment stove 1, superheated steam generator 2 and heat energy conversion combustion furnace 3, regeneration treatment stove 1 is including handling the furnace chamber, it is used for holding fibre reinforced composite discarded object to handle the furnace chamber, fibre reinforced composite discarded object is heated at handling the furnace intracavity, resin matrix and fibre separation, resin matrix vaporization decomposition produces pyrolysis gas, pyrolysis gas is carried and is fully burnt in heat energy conversion combustion furnace 3, thereby obtain clean heat source. The superheated steam generator 2 can be communicated with the treatment furnace cavity and used for delivering superheated steam into the treatment furnace cavity; superheated steam generated by the superheated steam generator 2 can be used as protective gas, so that the effect of isolating oxygen can be achieved, and harmful gas is prevented from being generated due to the reaction of resin in carbon fiber reinforced composite waste and oxygen. Meanwhile, the superheated steam can also be used as a heat transfer medium for separating carbon fibers from matrix resin in the carbon fiber reinforced composite waste, so that the regenerated carbon fibers which are clean, have no carbon deposit residue, have the strength of more than 90 percent of the original carbon fibers and have excellent performance are obtained. The heat energy conversion combustion furnace 3 is respectively communicated with the treatment furnace chamber and the superheated steam generator 2, the heat energy conversion combustion furnace 3 can ignite pyrolysis gas from the treatment furnace chamber and form nontoxic hot gas, and the nontoxic hot gas can be conveyed to the superheated steam generator 2 and/or the regeneration treatment furnace 1.

The waste regeneration treatment equipment that provides in this application passes through superheated steam to fibre reinforced composite discarded object heating and anaerobic protection, guarantee that fibre reinforced composite discarded object can obtain effective thermal cracking, and the pyrolysis gas that produces after the thermal cracking can be fired by heat energy conversion and is generated clean heat source by abundant burning in the burning furnace 3, clean heat source can provide the heat source for superheated steam generator 2 and/or regeneration treatment stove 1, the cost of fibre recovery has been practiced thrift, realize fibrous not damaged recovery, recovery process has tail gas zero release simultaneously, zero contaminated characteristics.

After the clean heat source generated in the thermal energy conversion combustion furnace 3 is conveyed to the regeneration treatment furnace 1, as shown in fig. 2, the clean heat source can be used as a heating heat source, and carbon deposits on the surface of carbon fibers can also be removed, so that the heat source recovered by the thermal energy conversion combustion furnace 3 can play more roles, and the cost is further reduced.

Second embodiment

As shown in fig. 3, an embodiment of the present application provides a recycling furnace 1 for fiber reinforced composite wastes 122, the recycling furnace 1 includes a furnace casing 110, a furnace chamber 111, an air intake assembly 114, a first exhaust assembly 115, a second exhaust assembly 116, and a heating device 117, the furnace chamber 111 is disposed in the furnace casing 110, and the furnace chamber 111 is used for accommodating the fiber reinforced composite wastes 122; the air inlet assembly 114 is arranged on the processing furnace shell 110 and communicated with the processing furnace cavity 111, and the air inlet assembly 114 is used for inputting superheated steam or hot air; the first exhaust assembly 115 is arranged on the processing furnace shell 110 and communicated with the processing furnace cavity 111; the second exhaust assembly 116 is arranged on the processing furnace shell 110 and communicated with the processing furnace chamber 111, and the second exhaust assembly 116 is used for exhausting the pyrolysis gas; a heating device 117 is provided on the process furnace casing 110, and the heating device 117 and/or the superheated steam can heat the inside of the process furnace chamber 111.

The regenerative treatment furnace 1 of the present application comprises a treatment furnace housing 110, a treatment furnace chamber 111, an air intake assembly 114, a first exhaust assembly 115, a second exhaust assembly 116 and a heating device 117, wherein the treatment furnace chamber 111 is disposed inside the treatment furnace housing 110, the treatment furnace chamber 111 is used for providing a combustion space, the fiber reinforced composite waste 122 is placed in the treatment furnace chamber 111, and the recovery treatment is completed in the treatment furnace chamber 111.

Wherein, the furnace casing 110 is provided with an air intake assembly 114, the air intake assembly 114 is communicated with the furnace chamber 111, and when the regeneration furnace 1 is in different working stages, the air intake assembly 114 can selectively introduce superheated steam or hot air. The recycling furnace 1 includes a first stage and a second stage, in the first stage, superheated steam is delivered into the processing furnace chamber 111 through the air inlet assembly 114, 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 122 located in the processing furnace chamber 111, and the resin matrix in the fiber reinforced composite material waste 122 can be completely gasified, so that separation between fiber and matrix resin is realized. In the second stage, the input of superheated steam is stopped, the hot air is input into the processing furnace chamber 111, 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 is noted that in the second stage, the source of hot air may be provided by a separate hot air delivery device 4 or by the heat energy conversion burner 33.

Wherein, a first exhaust assembly 115 and a second exhaust assembly 116 are further disposed on the process furnace shell 110, and the first exhaust assembly 115 is used for ensuring the pressure balance in the process furnace chamber 111 and ensuring the circulation of other gases except the pyrolysis gas in the process furnace chamber 111. The second exhaust assembly 116 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 122, that is, the pyrolysis gas is toxic gas. Of course, the term "discharging the pyrolysis gas through the second exhaust assembly 116" refers to discharging the pyrolysis gas to a predetermined location, such as the heat energy conversion burner 33, relative to the process furnace chamber 111, so that the poisonous pyrolysis gas can be converted into clean high-temperature hot gas, which can be used to provide a heat source for the regeneration process furnace 1. 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 wastes 122 in the treatment furnace chamber 111 can be separately guided out from the second exhaust assembly 116, and is independent from the first exhaust assembly 115 for maintaining the pressure balance in the cranial cavity, so that the precise control is facilitated, and the subsequent treatment of the toxic gas can be simplified.

Still be equipped with heating device 117 on the treatment stove outer covering 110 of regeneration treatment stove 1 in this application, heating device 117 also can heat the inside of handling furnace chamber 111, superheated steam not only can heat the inside of handling furnace chamber 111, but also can regard as the protective atmosphere among the fibre reinforced composite discarded object 122 thermal decomposition process, can effectively reduce energy consumption, also can guarantee the efficiency of thermal decomposition, make the fibre can be collected well, promote the rate of recovery.

It is worth noting that superheated steam generation may be dependent upon the superheated steam generator 22, and the heat source converted from cracked gases exiting the second exhaust assembly 116 may be used to heat the superheated steam generator 22 to facilitate superheated steam generation.

Optionally, the regenerative treatment furnace 1 further comprises a control assembly 118, the control assembly 118 is disposed on the treatment furnace housing 110, and the control assembly 118 is configured to regulate an internal temperature of the treatment furnace chamber 111 and/or an internal pressure within the treatment furnace chamber 111.

In the embodiment of the present application, the regeneration treatment furnace 1 further includes a control component 118, the control component 118 is disposed on the treatment furnace housing 110, and the control component 118 is configured to regulate and control the internal temperature of the treatment furnace chamber 111, so as to ensure that the fiber reinforced composite material waste 122 located inside the treatment furnace chamber 111 can be separated from the resin matrix at a suitable temperature, thereby achieving the recycling of the regenerated fiber.

Specifically, in the first stage, when the regeneration treatment furnace 1 is used for the fiber reinforced composite material waste 122, the superheated steam introduced into the treatment furnace chamber 111 of the regeneration treatment furnace 1 is micro-oxygen superheated steam at 400-700 ℃ under normal pressure, and the superheated steam performs 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 122 can be completely gasified, and the separation of the fiber filaments from the resin matrix in the carbon fiber reinforced composite material waste 122 is realized. Wherein the fibers comprise carbon fibers.

In the second stage, the temperature in the treatment furnace chamber 111 can be controlled to be 400-500 ℃ by the control assembly 118, hot compressed air is input, carbon deposition on the surface of the gasified fiber reinforced composite material waste 122 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, during the operation of the regeneration treatment furnace 1, the temperature and the pressure inside the regeneration treatment furnace are not constant but adjusted according to different stages, and the control component 118 can ensure that the temperature and the pressure inside the treatment furnace chamber 111 can be within a reasonable range, so that the recovery efficiency of the carbon fiber in the waste of the fiber reinforced composite material is greatly improved.

Optionally, the regenerative treatment furnace 1 further comprises an inner shell 112, the inner shell 112 is disposed inside the treatment furnace shell 110, the inner shell 112 has a treatment furnace cavity 111, a heating chamber 113 which is not communicated with the treatment furnace cavity 111 is disposed between the inner shell 112 and the treatment furnace shell 110, and the heating device 117 is disposed in the heating chamber 113; the control assembly 118 includes a first temperature sensor for sensing the temperature within the process chamber 111 and a second temperature sensor for sensing the temperature within the heating chamber 113.

In the embodiment of the present application, the regeneration treatment furnace 1 further includes an inner shell 112, the inner shell 112 is disposed inside the treatment furnace shell 110, it can be understood that the inner shell 112 is disposed inside the treatment furnace shell 110, the inner shell 112 can form a treatment furnace chamber 111, i.e., the fiber reinforced composite waste 122 is disposed inside the inner shell 112, a heating chamber 113 is disposed between the inner shell 112 and the treatment furnace shell 110, i.e., between an outer wall of the inner shell 112 and an inner wall of the treatment furnace shell 110, the heating chamber 113 and the treatment furnace chamber 111 are two relatively independent spaces isolated from each other by the inner shell 112, a heating device 117 is disposed inside the heating chamber 113, the heating device 117 generates heat in the heating chamber 113, and the heat is transferred to the inside of the treatment furnace chamber 111 through the inner shell 112, thereby achieving the purpose of heating the fiber reinforced composite waste 122 inside the treatment furnace chamber 111.

The control assembly 118 includes a first temperature sensor and a second temperature sensor, the first temperature sensor is used for detecting the temperature in the process furnace chamber 111, specifically, the number of the first temperature sensors is 2, and 2 first temperature sensors are respectively disposed on two sides of the inner casing 112. The second temperature sensors are used to detect the temperature of the heating chamber 113, and specifically, the number of the second temperature sensors is 2, and 2 second temperature sensors are respectively provided on the front and rear sides of the heating chamber 113, that is, the number of the temperature sensors is 4 in total. Since the temperature in the process furnace chamber 111 is also controlled by the heat provided by the heating chamber 113, the temperatures of the process furnace chamber 111 and the heating chamber 113 are correlated with each other, and in order to achieve precise control of the temperature in the process furnace chamber 111, the first temperature sensor and the second temperature sensor are respectively used for detecting the temperatures in the process furnace chamber 111 and the heating chamber 113, so as to maximally eliminate temperature inertia during heating, thereby achieving uniform distribution of the temperature in the process furnace chamber 111.

Optionally, the regenerative treatment furnace 1 further includes a supplementary heat inlet provided on the treatment furnace casing 110 and communicating with the heating chamber 113.

In the embodiment of the application, the carbon fiber reinforced composite waste 122 is combusted in the treatment furnace chamber 111, the generated pyrolysis gas is exhausted into the heat energy conversion combustion furnace 33 through the second exhaust assembly 116, the pyrolysis gas is fully combusted in the heat energy conversion combustion furnace 33 and is converted into high-temperature clean hot gas, and the clean high-temperature hot gas can enter the heating chamber 113 through the heat supplementing air inlet, so that the inside of the treatment furnace chamber 111 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.

Third embodiment

The inventors of the present application have found that, as shown in fig. 3, when the sealing performance of the processing furnace chamber 111 and the sealing performance of the heating chamber 113 cannot be ensured, not only the fiber reinforced composite material waste 122 in the processing furnace chamber 111 cannot be effectively thermally decomposed, but also the waste generated during the cracking process of the fiber reinforced composite material waste 122 may leak and cause environmental pollution.

To this end, an embodiment of the present application proposes a regenerative treatment furnace 1 in which one side of a treatment furnace shell 110 has a material port; the regeneration treatment furnace 1 also comprises a furnace door 119 and a sealing element, wherein the furnace door 119 is movably arranged on the treatment furnace shell 110 to open and close the material port; the sealing member is provided on the door 119, and is interposed between the door 119 and the process furnace casing 110 in a state where the door 119 closes the loading port.

In the embodiment of the present application, one side of the furnace shell 110 has an opening, and the fiber reinforced composite waste 122 can be transported to the furnace chamber 111 through the skip 121. The regenerative treatment furnace 1 further comprises a furnace door 119 and a sealing member, the furnace door 119 is movably disposed on the treatment furnace casing 110, and the furnace door 119 moves relative to the treatment furnace casing 110, thereby opening or closing the material opening. The sealing element is arranged on the furnace door 119, and is clamped between the furnace door 119 and the treatment furnace shell 110 under the condition that the furnace door 119 seals the material opening, and the sealing element can effectively seal a gap between the furnace door 119 and the treatment furnace shell 110, so that in the working process of the regeneration treatment furnace 1, gas in the cracking process cannot leak outwards along one side of the furnace door 119, and the safety use performance of the regeneration treatment furnace 1 is ensured.

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

Optionally, the regeneration treatment furnace 1 further comprises a cooling component, the cooling component is arranged on one side of the sealing member, and the cooling component can cool the sealing member, so that the problem of damage to the sealing member 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 door 119 is closed, the door 119 and the sealing members can be tightly pressed against the furnace casing 110 and the inner casing 112 by the hydraulic system, so that the gas in the furnace chamber 111 is difficult to leak out from the side of the door 119.

Embodiment IV

The inventor of the present application found that, as shown in fig. 3, when the heat preservation performance of the regeneration treatment furnace 1 is not excellent enough, the heat in the treatment furnace chamber 111 is diffused outward from the treatment furnace shell 110, and the heat cannot be effectively applied to the cracking of the fiber reinforced composite material waste 122, resulting in unnecessary heat loss.

To this end, an embodiment of the present application proposes a regenerative treatment furnace 1, wherein the regenerative treatment furnace 1 further comprises a first heat insulating layer 120, and the first heat insulating layer 120 is disposed between the inner shell 112 and the treatment furnace shell 110.

In the embodiment of the application, the first thermal insulation layer 120 is disposed on the inner wall of the furnace shell 110, the fiber reinforced composite waste 122 is thermally decomposed in the region formed by the first thermal insulation layer 120, and meanwhile, heat generated in the region formed by the first thermal insulation layer 120 cannot be easily transferred to the external environment through the first thermal insulation layer 120, so that the fiber reinforced composite waste 122 is effectively cracked in a stable temperature environment, and a resin matrix in the fiber reinforced composite waste 122 can be effectively gasified to generate cracked gas, which is beneficial to extraction of carbon fibers.

Alternatively, the air intake assembly 114 and the second exhaust assembly 116 are disposed on a side of the process furnace shell 110 facing away from the oven door 119, and the first exhaust assembly 115 is disposed on a top portion of the process furnace shell 110.

In an embodiment of the present application, the air inlet assembly 114 and the second air outlet assembly 116 are arranged on the side of the processing furnace shell 110 facing away from the oven door 119, i.e. the air inlet assembly 114 and the second air outlet assembly 116 can be arranged on the backside of the processing furnace shell 110, and the first air outlet assembly 115 is arranged on the top of the processing furnace shell 110, so that the air inlet assembly 114, the second air outlet assembly 116 and the first air outlet assembly 115 can be reasonably distributed on the processing furnace shell 110, avoiding too significant influence on the structural strength.

Alternatively, the heating device 117 includes a plurality of heating parts uniformly disposed around the process furnace chamber 111.

In an embodiment of the present application, the heating device 117 includes a plurality of heating portions, and optionally, the heating portions include electric heating pipes. The plurality of heating parts are uniformly arranged around the process furnace chamber 111, so that the effective heating areas can be vertically distributed from top to bottom on both sides of the outside of the inner casing 112 forming the process furnace chamber 111, and more uniform heat can be provided for the inside of the process furnace chamber 111.

It should be noted that the heating source for the fiber reinforced composite material waste 122 inside the furnace chamber 111 may include superheated steam, a heating device 117, and clean high-temperature hot gas entering the heating chamber 113 from the supplementary heating air inlet. When the pyrolysis gas is not generated in the initial stage of the reaction of the fiber reinforced composite waste 122 in the processing furnace chamber 111, or the flow rate of the pyrolysis gas is relatively small, the heat source is mainly provided by the heating device 117, 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 113, and the high-temperature hot gas is used as a main heat source, at this time, the heating device 117 can be used as an auxiliary heat source, and the heating device 117 and the high-temperature hot gas are used simultaneously to provide sufficient heat for the thermal cracking of the fiber reinforced composite waste 122.

Fifth embodiment

As shown in fig. 4, an embodiment of the present application provides a superheated steam generator 2, which includes an inner container 21, an outer container 22, a heating element 24 and a temperature control element 25, wherein the inner container 21 has an installation cavity, the outer container 22 is disposed on a side of the inner container 21 away from the installation cavity, a steam channel is disposed between the outer container 22 and the inner container 21, at least a portion of the heating element 24 is located in the installation cavity, and the temperature control element 25 is disposed on the heating element 24.

The superheated steam generator 2 comprises an inner container 21, an outer container 22, a heating element 24 and a temperature control element 25. The inner bag 21 has the installation cavity, and outer courage 22 is established in one side that inner bag 21 deviates from the installation cavity, and wherein, one side at directional installation cavity center is the inboard, deviates from one side at installation cavity center and is the outside promptly. Namely, the outer liner 22 is arranged outside the inner liner 21, and a steam channel is arranged between the inner liner 21 and the outer liner 22 and used for steam circulation. Conceivably, the steam channel has an inlet 235 and a steam outlet 236, thereby allowing steam to circulate within the steam channel.

Wherein at least a portion of the heating element 24 is disposed in the mounting cavity, for example, the heating element 24 is entirely disposed in the mounting cavity, and can exchange heat with the steam in the steam channel rapidly and efficiently. Or, a part of the heating element 24 is located in the installation cavity, and the other part of the heating element 24 is exposed relative to the installation cavity, and the exposed part of the heating element 24 can facilitate the electrical connection of the heating element 24, so that the safety performance is higher. It is noted that the heating element 24 is used to provide a heat source, and the heat generated by the heating element 24 can heat the water and/or steam in the steam passage, thereby obtaining high-temperature steam satisfying the requirement.

In which water and/or saturated steam may enter the steam channel through the inlet 235, and the water and/or saturated steam may be heated by the heat generated by the heating element 24 in the steam channel to become superheated steam, and may be discharged from the steam outlet 236. It is worth noting that the saturated steam may come from a steam boiler. The temperature of the saturated steam is 100-200 ℃, the oxygen content of the superheated steam is less than 0.3 percent, and the temperature of the superheated steam is 400-700 ℃ under normal pressure.

For example, when water enters the steam channel through the inlet 235, heat is generated by the heating element 24 to heat the water in the steam channel, so as to generate saturated steam, and the heating element 24 continuously heats the steam channel, the saturated steam is converted into superheated steam, and the superheated steam has an oxygen content of less than 0.3% and a temperature of 400-700 ℃ at normal pressure, so as to meet the user requirement.

The temperature control part 25 is arranged on the heating part 24, and the temperature control part 25 is used for detecting working parameters of the heating part 24 and regulating and controlling the working parameters of the heating part 24, so that the control on the steam temperature and the steam pressure in the steam channel can be realized. The operating parameters of the heating element 24 include, but are not limited to, heating power and heating duration.

The superheated steam generator 2 that provides in this application has abandoned the scheme that traditional pressure boiler prepared superheated steam, has convenient to use, simple structure and the higher characteristics of security performance, has effectively promoted superheated steam's range of application, simultaneously, through set up temperature control 25 on heating member 24 to realized the control to heating member 24 working parameter, the parameter of the superheated steam that makes superheated steam generator 2 produce is controllable, can satisfy the demand under the different scenes.

Alternatively, the inner container 21 is made of a material with high thermal conductivity, and the heat generated by the heating element 24 can be rapidly transferred to the steam channel through the inner container 21 during the heat transfer process. On the one hand, the heat efficiency is improved, on the other hand, because heat is taken away by steam fast on the inner bag 21, reduces the inner bag 21 temperature, also can weaken the heat as far as possible to the adverse effect of inner bag 21 self structure, extension inner bag 21's life. Optionally, the inner container 21 is a heat-resistant stainless steel tube.

Optionally, the outer bladder 22 is made of a material with low thermal conductivity, so that heat dissipation caused by heat transfer between steam and the outer bladder 22 is reduced, and thermal efficiency is improved. The temperature control element 25 collects the temperature of the steam channel, and performs on/off operation according to the temperature of the steam channel to adjust the output power of the heating element 24, thereby controlling the steam temperature. Optionally, outer bladder 22 is a heat resistant stainless steel tube.

Alternatively, the heating members 24 include a first heating member 241 and a second heating member 242, and the temperature control member 25 is provided on the first heating member 241 and/or the second heating member 242. The steam passage includes a first steam passage 231 and a second steam passage 232, the first steam passage 231 includes an inlet 235, a first heater 241 is used for heating the first steam passage 231, the second steam passage 232 is communicated with the first steam passage 231, the second steam passage 232 includes a steam outlet 236, and a second heater 242 is used for heating the second steam passage 232.

In the embodiment of the present application, the heating member 24 includes a first heating member 241 and a second heating member 242, the steam passage includes a first steam passage 231 and a second steam passage 232, the first heating member 241 is used for heating water and/or steam in the first steam passage 231, and the second heating member 242 is used for heating water and/or steam in the second steam passage 232. The combined use of the first heating member 241 and the second heating member 242 can effectively improve the heating efficiency of the heating member 24, so that the possibility of obtaining a large amount of superheated steam per unit time is greatly improved.

The temperature control member 25 may be disposed on the first heating member 241, or the temperature control member 25 may be disposed on the second heating member 242, or the temperature control member 25 may be disposed on both the first heating member 241 and the second heating member 242. The temperature control part 25 can regulate and control the working parameters of the first heating part 241 and the second heating part 242, so as to regulate and control the temperatures of the first steam channel 231 and the second steam channel 232.

Regarding the steam channel, it includes the first steam channel 231 and the second steam channel 232 which are communicated, the first steam channel 231 has an inlet 235, the second steam channel 232 has a steam outlet 236, that is, water and/or saturated steam can first enter the first steam channel 231 through the inlet 235, and then flow from the first steam channel 231 to the second steam channel 232, at the same time, the heat generated by the heating element 24 heats the water and/or steam inside the first steam channel 231 and the second steam channel 232, and finally the superheated steam is discharged from the steam outlet 236.

Optionally, at least a portion of the second steam channel 232 extends zigzag with respect to the first steam channel 231.

In the embodiment of the present application, at least a portion of the second steam channel 232 is zigzag-extended relative to the first steam channel 231, that is, the steam channel is a zigzag channel as a whole, and when water and/or steam circulates in the steam channel, the zigzag steam channel can extend the circulation path and the circulation market, so that the heat exchange can be performed more thoroughly, and the superheated steam finally discharged through the steam outlet 236 can meet the user requirement.

Alternatively, the first steam passage 231 extends in a first direction, the second steam passage 232 includes a communication passage 233 and a steam discharge passage 234, the steam discharge passage 234 communicates with the first steam passage 231 through the communication passage 233, the steam discharge passage 234 extends in the first direction, and the communication passage 233 extends in a second direction different from the first direction.

In the embodiment of the present application, the first steam passage 231 extends in the first direction, the second steam passage 232 includes a communication passage 233 and a steam discharge passage 234, the steam discharge passage 234 communicates with the first steam passage 231 through the communication passage 233, and the steam discharge passage 234 has a steam outlet 236. That is, the communication passage 233 is located between the first steam passage 231 and the steam discharge passage 234. The steam discharging channel 234 and the first steam channel 231 both extend along a first direction, the communicating channel 233 extends along a second direction, the second direction is different from the first direction, and the second steam channel 232 is two sections with different extending directions, so that the requirement of zigzag extension of the steam channels is met.

For example, the first direction may be a vertical direction, and the second direction may be a horizontal direction, so that for the steam channel, a longitudinal section along the vertical plane is substantially "U" shaped.

Alternatively, a guide structure may be provided at the communication of the first steam passage 231 and the communication passage 233, thereby reducing resistance of the steam during circulation.

Alternatively, a guide structure may be provided at the communication between the communication passage 233 and the steam discharge passage 234, thereby reducing resistance of the steam during circulation.

Sixth embodiment

The inventor of the present application has found that when the thermal insulation performance of the outer side of the steam channel is not excellent enough, a part of heat may diffuse from the outer side of the steam channel to the external environment, and the part of heat cannot act on water and/or steam inside the steam channel, resulting in unnecessary loss of heat.

To this end, as shown in fig. 4, an embodiment of the present application proposes a superheated steam generator 2 including a generator case 26 and a second insulation layer 27, the generator case 26 having a fitting cavity in which at least a portion of the inner container 21 and at least a portion of the outer container 22 are located; a second layer of insulation 27 is disposed within the assembly chamber and between the outer bladder 22 and the generator housing 26.

In the embodiment of the application, the superheated steam generator 2 further comprises a generator shell 26 and a second insulating layer 27, the generator shell 26 has an assembly cavity, and the generator shell 26 can form the outer contour of the superheated steam generator 2 and protect the internal structural components thereof.

Wherein, at least one part of the inner container 21 is positioned in the assembly cavity, at least one part of the outer container 22 is positioned in the assembly cavity, and the steam channel between the inner container 21 and the outer container 22 is positioned in the generator shell 26, namely in the assembly cavity. The generator housing 26 itself can also provide some thermal insulation to prevent heat from being transferred to the outside.

Further, a second insulating layer 27 is arranged between the generator shell 26 and the outer container 22, the second insulating layer 27 is located in the assembly cavity, and the second insulating layer 27 is used for blocking heat in the steam channel from being transmitted to the outside of the generator shell 26, so that the heat can be gathered in the steam channel, the heat of water and/or steam in the steam channel is increased as much as possible, and unnecessary loss of the heat is avoided.

Optionally, a mounting opening is provided in the generator housing 26, a portion of the heating element 24 is disposed exposed with respect to the generator housing 26 through the mounting opening, and the temperature control element 25 is disposed exposed with respect to the generator housing 26.

In the embodiment of this application, be equipped with the assembly opening on the generator shell 26 to can make partly the passing assembly opening of heating member 24, two expose the setting for the assembly chamber, the setting of temperature control piece 25 can be made things convenient for to the partial heating member 24 that exposes, makes superheated steam generator 2's safety in use ability promote, weakens the interference of steam to electric connection component.

Optionally, the superheated steam generator 2 further comprises a plurality of ribs 28, the plurality of ribs 28 being spaced apart on the generator housing 26.

In the embodiment of the present application, the superheated steam generator 2 further includes a plurality of reinforcing ribs 28, the plurality of reinforcing ribs 28 are disposed on the generator housing 26 at intervals, and since the generator housing 26 has the heating element 24 and the steam channel, etc. inside the generator housing 26, the temperature difference between the inside and the outside of the generator housing 26 is large, that is, the working environment of the generator housing 26 provides a relatively large test for the structural strength and the structural stability of the generator housing 26, and the plurality of reinforcing ribs 28 are disposed on the generator housing 26, so that the structural stability of the generator housing 26 can be effectively ensured, and the possibility of deformation of the generator housing 26 is reduced.

Seventh embodiment mode

The inventors of the present application have found that when the superheated steam generator 2 is used, residual water is often present in the steam channel and may not be discharged in time, which may affect the service life of the superheated steam generator 2.

To this end, as shown in fig. 4, an embodiment of the present application proposes a superheated steam generator 2 including a drain assembly 29, the drain assembly 29 being capable of communicating with a steam passage.

In the embodiment of the present application, the superheated steam generator 2 includes a drain assembly 29, which is communicated with the steam channel, and during the normal use of the superheated steam generator 2, the drain assembly 29 is closed, ensuring that the steam channel can discharge the superheated steam. After the superheated steam generator 2 is used, the drainage assembly 29 can be opened, so that residual water in the steam channel can be drained from the drainage assembly 29, and the service life of the superheated steam generator 2 is prolonged.

Optionally, a drain assembly 29 is located at the bottom of the steam channel.

In the embodiment of the present application, the drainage assembly 29 is disposed at the bottom of the steam channel, and the residual water can be drained to the outside through the drainage assembly 29 under the action of gravity without an additional structure for leading out the residual water.

Optionally, the drain assembly 29 includes a drain valve.

Embodiment eight

As shown in fig. 5, an embodiment of the present application provides a thermal energy conversion furnace 3 for a waste recycling apparatus, the thermal energy conversion furnace 3 includes a conversion furnace housing 310, a first burner nozzle 312, a second burner nozzle 313 and a third exhaust assembly 314, the conversion furnace housing 310 has a conversion furnace chamber 311, the first burner nozzle 312 is disposed on the conversion furnace housing 310 and is communicated with the conversion furnace chamber 311, the first burner nozzle 312 is used for igniting pyrolysis gas, the second burner nozzle 313 is disposed on the conversion furnace housing 310 and is communicated with the conversion furnace chamber 311, the second burner nozzle 313 is used for igniting gas, and the third exhaust assembly 314 is disposed on the conversion furnace housing 310 and is communicated with the conversion furnace chamber 311.

The heat energy conversion combustion furnace 3 of the present application is used for a waste recycling treatment device, wherein the heat energy conversion combustion furnace 3 comprises a conversion furnace shell 310, a first burner 312, a second burner 313 and a third exhaust assembly 314, wherein the conversion furnace shell 310 has a conversion furnace chamber 311, and the conversion furnace chamber 311 provides a combustion space. The first burner 312 is disposed on the converter shell 310, the first burner 312 is communicated with the converter cavity 311, and the first burner 312 is used for igniting pyrolysis gas, i.e. pyrolysis gas is ignited at the first burner 312. The second burner 313 is arranged on the conversion furnace shell 310, the second burner 313 is communicated with the conversion furnace cavity 311, and the second burner 313 is used for igniting gas, namely the gas can be ignited at the second burner 313. Under the cooperation of the first burner 312 and the second burner 313, the pyrolysis gas can be sufficiently and effectively combusted in the conversion furnace chamber 311, so that a clean heat source is obtained, the heat source can be discharged through the third exhaust assembly 314, the clean heat source does not cause the problem of environmental pollution, and the cost can be reduced. The specific direction of the clean heat source can be directly discharged to the external environment, or the clean heat source can be directly conveyed to other parts of the waste regeneration treatment equipment, so that the cost of waste recovery can be reduced, and the method is suitable for the sustainable, green and low-carbon development trend of the industry.

It is worth to say that the waste regeneration treatment equipment is used for carbon fiber reinforced composite materials, and pyrolysis gas is combustible organic small molecule gas. The gas includes natural gas or coal gas. Clean heat sources include non-toxic high temperature hot gases.

The heat energy conversion furnace 3 further comprises a base 320, wherein the base 320 is disposed at the bottom of the converter shell 310 for supporting the converter shell 310.

In the working process of the heat energy conversion combustion furnace 3, no pyrolysis gas exists in the early stage, and the second burner 313 can be adopted to introduce fuel gas into the conversion furnace chamber 311 and ignite the fuel gas, so that when the pyrolysis gas enters the conversion furnace chamber 311, the temperature in the conversion furnace chamber 311 can be set to a preset temperature, and the pyrolysis gas can be fully combusted and reacted. With the generation of a large amount of pyrolysis gas, the pyrolysis gas at the first burner 312 is enough for combustion, and the supply of the fuel gas at the second burner 313 may be controlled to stop, or a small amount of fuel gas may be supplied to maintain an open flame. That is to say, in different working stages of the heat energy conversion combustion furnace 3, the working parameters of the first burner 312 and the second burner 313 can be controlled, so as to meet the combustion requirements when the flow of the pyrolysis gas is different in different stages, so that the universality of the heat energy conversion combustion furnace 3 is more excellent, and the requirements of different use scenes are met.

Optionally, a first burner 312 and a third exhaust assembly 314 are provided on opposite sidewalls of the converter shell 310.

In the embodiment of the present application, the converter housing 310 has two opposite side walls, for example, a front side wall of the converter housing 310, a rear side wall of the converter housing 310, or a left side wall of the converter housing 310, a right side wall of the converter housing 310, and the first burner 312 and the third exhaust assembly 314 are respectively disposed on the two opposite side walls, so that when the pyrolysis gas is ignited at the first burner 312, the pyrolysis gas can be fully combusted in the converter cavity 311 as much as possible, and the possibility that the insufficiently combusted pyrolysis gas is exhausted from the third exhaust assembly 314 is eliminated, so that the gas reaching the third exhaust assembly 314 is clean high-temperature gas rather than toxic gas.

Alternatively, the second burner 313 is disposed on the top wall of the converter shell 310.

In the embodiment of the application, the second burner 313 is arranged on the top wall of the converter shell 310, and the first burner 312 and the third exhaust assembly 314 are arranged on two opposite side walls of the converter shell 310 along the front-back direction, i.e. the first burner 312, the second burner 313 and the third exhaust assembly 314 are respectively arranged on different wall surfaces of the converter shell 310, so that the structural layout of the heat energy conversion burner 3 is more reasonable, and the problems of reduced structural strength and the like caused by concentrated arrangement of the first burner 312, the second burner 313 and the third exhaust assembly 314 are avoided.

Alternatively, the third exhaust assembly 314 comprises at least two exhaust ports disposed on the converter shell 310 and a switching valve disposed at the at least two exhaust ports, wherein the at least two exhaust ports are capable of communicating with the converter cavity 311 via the switching valve.

In the embodiment of the present application, the third exhaust assembly 314 includes at least two exhaust ports and a switching valve, and for clean heat sources, i.e., high-temperature hot gases, generated after pyrolysis gases are sufficiently combusted, the direction of the high-temperature hot gases can be selected in various ways, so as to meet the distribution and utilization of the high-temperature hot gases. For example, when the waste recycling apparatus further includes the superheated steam generator 2 and the recycling furnace 1, the hot gas with high temperature can be selectively delivered to the superheated steam generator 2 and/or the recycling furnace 1, and can be used as a heat source of the superheated steam generator 2 and the recycling furnace 1 or a supplementary heat source.

For example, the switching valve may include an electrically-actuated linkage butterfly valve.

Wherein, third exhaust assembly 314 still includes pressure sensor, further satisfies the distribution utilization of high temperature hot gas.

When the number of the exhaust ports is two, one exhaust port is communicated with the superheated steam generator 2 through a pipeline, the other exhaust port is communicated with the regeneration treatment furnace 1 through a pipeline, and the conversion furnace chamber 311 can be communicated with at least one of the two exhaust ports through a switching valve, so that the communication mode can be adjusted through the switching valve in different working stages. Specifically, the converter chamber 311 may be in communication with only one of the superheated steam generator 2 and the regeneration furnace 1, or the converter chamber 311 may be in communication with both the superheated steam generator 2 and the regeneration furnace 1, and may be set according to actual requirements, and the setting of the switching valve provides various options for the actual requirements.

Ninth embodiment

The inventor of the present application has found that when the pyrolysis gas is combusted in the conversion furnace chamber 311, the pressure inside the conversion furnace chamber 311 may be higher than the pressure of the external environment, and if the internal pressure of the thermal energy conversion combustion furnace 3 cannot be accurately controlled, the problem of safe use may be caused.

To this end, as shown in fig. 5, an embodiment of the present application proposes a thermal energy conversion furnace 3, further comprising a control assembly 118, wherein the control assembly 118 is disposed on the conversion furnace shell 310, and the control assembly 118 is configured to regulate and control an internal temperature of the conversion furnace cavity 311 and/or an internal pressure of the conversion furnace cavity 311.

In the embodiment of the present application, the heat energy conversion combustion furnace 3 further includes a control component 118, the control component 118 is disposed on the conversion furnace shell 310, the control component 118 can regulate and control the internal temperature of the conversion furnace cavity 311, so that the temperature in the conversion furnace cavity 311 reaches the temperature required by the combustion of the pyrolysis gas, when the pyrolysis gas is generated by the combustion of the carbon fiber reinforced composite material, that is, the pyrolysis gas is combustible organic small molecule gas generated by the gasification of the matrix resin, then, at this time, it is required to ensure that the temperature in the heat energy conversion combustion furnace 3 reaches about 900 ℃, at this temperature, the pyrolysis gas can be effectively decomposed, so as to form non-toxic clean high-temperature hot gas, such as CO ₂ 、H ₂ And O, achieving the sustainable development of the environment. If the control assembly 118 is not provided to precisely control the temperature in the converter chamber 311, effective decomposition of the pyrolysis gas cannot be guaranteed, and it is not ensured that the gas exhausted from the third exhaust assembly 314 meets the environmental protection standard, which is likely to cause pollution.

The control component 118 can also regulate and control the internal pressure of the conversion furnace cavity 311, so that the internal pressure of the conversion furnace cavity 311 is lower than the maximum bearing pressure, and the safe use of the thermal energy conversion combustion furnace 3 is ensured.

Optionally, the thermal energy conversion burner 3 further comprises a safety cap 316, and the safety cap 316 is disposed on the converter shell 310.

In the embodiment of the present application, when the control component 118 fails to control the internal pressure of the conversion furnace cavity 311, which results in an excessively high internal pressure of the conversion furnace cavity 311, the safety cap 316 may be used to implement automatic pressure relief by physical means, thereby further ensuring the safety of the operation of the heat energy conversion combustion furnace 3.

In the embodiment of the present application, the temperature inside the conversion furnace chamber 311 can be maintained at about 900 ℃ by the control assembly 118, so that the pressure inside the conversion furnace chamber 311 is stable.

Detailed description of the preferred embodiment

The inventor of the present application has found that when the thermal energy conversion combustion furnace 3 is used, water often accumulates in the pipeline for transporting the pyrolysis gas, and if the water cannot be removed, the transportation efficiency of the pyrolysis gas and the treatment efficiency of the waste regeneration treatment equipment are easily affected.

To this end, as shown in fig. 5, an embodiment of the present application proposes a thermal energy conversion burner 3, wherein the thermal energy conversion burner 3 further includes a dropping hole 317, and the dropping hole 317 is provided on the converter shell 310.

In the embodiment of the application, pyrolysis gas is conveyed to the first burner 312 through a pipeline, accumulated water is easily generated in the pipeline, the accumulated water in the pipeline can be discharged into the conversion furnace chamber 311 through the dripping hole 317 by arranging the dripping hole 317 on the conversion furnace shell 310, the accumulated water in the pipeline is cleaned at 900 ℃, the problem of accumulated water in the pipeline is solved, the integrity of waste regeneration treatment equipment is ensured, the problem of leakage of pyrolysis gas outside does not exist, and the conveying efficiency of pyrolysis gas and the treatment efficiency of waste regeneration treatment equipment are not influenced.

Description of the preferred embodiment

The present inventors have found that when the thermal insulation performance of the heat energy conversion combustion furnace 3 is not excellent enough, the heat in the conversion furnace chamber 311 is diffused out from the conversion furnace casing 310, and the heat cannot be effectively decomposed by the pyrolysis gas, resulting in unnecessary loss of heat.

To this end, as shown in fig. 5, an embodiment of the present application proposes a thermal conversion furnace 3, and the thermal conversion furnace 3 further includes a third insulating layer 318, and the third insulating layer 318 is disposed on the inner wall of the converter shell 310.

In the embodiment of the application, the third insulating layer 318 is arranged on the inner wall of the conversion furnace shell 310, the pyrolysis gas can be fully combusted in the combustion area formed by the third insulating layer 318, the generated heat can not be easily transmitted to the external environment through the third insulating layer 318, and the pyrolysis gas is effectively decomposed in a stable temperature environment, so that clean high-temperature hot gas is formed, the pollution to the environment is avoided, meanwhile, a clean heat source with high temperature can be provided as far as possible, sufficient heat source support is provided for other parts of waste regeneration treatment equipment, and the recycling rate is improved.

EXAMPLE twelve

The inventor of the present application finds that when the conversion furnace cavity 311 of the thermal energy conversion combustion furnace 3 does not have the visualization performance, it is difficult to find problems in the combustion process in time, and serious consequences are often caused due to the fact that the problems cannot be found in time, and the maintenance and the handling are inconvenient, and the operation is performed by personnel.

To this end, as shown in fig. 5, an embodiment of the present application proposes a thermal energy conversion combustion furnace 3, wherein a transparent window 319 is provided on a converter shell 310, and the transparent window 319 is detachably provided on the converter shell 310.

In the embodiment of the present application, the converter shell 310 is provided with the perspective window 319, the perspective window 319 can realize visualization inside the converter cavity 311, and a user can visually observe the combustion state inside the converter cavity 311 through the perspective window 319, and if there is an abnormality in the combustion process, the combustion state can be timely processed, for example, immediately stopped, so as to avoid causing serious consequences.

Further, the transparent window 319 is detachably arranged on the converter shell 310, so that when a user needs to repair the components in the converter cavity 311, the components can be repaired through the transparent window 319, and the maintenance difficulty is reduced.

Thirteenth embodiment

As shown in fig. 6, an embodiment of the present application provides a hot air conveying apparatus 4, as shown in fig. 1, including a housing 41, a first air inlet, a first air outlet, a second air inlet, and a second air outlet, wherein the housing 41 includes a heat exchange cavity 411, the first air inlet and the first air outlet are respectively disposed on the housing 41 and are communicated with the heat exchange cavity 411, the first air inlet is used for inputting air to be heated, the second air inlet and the second air outlet are respectively disposed on the housing 41 and are communicated with the heat exchange cavity 411, and the second air inlet is used for inputting hot air.

The hot air delivery device 4 of the present application includes a housing 41, a first air inlet, a first air outlet, a second air inlet, and a second air outlet, wherein the housing 41 includes a heat exchange cavity 411, and the heat exchange cavity 411 is used for heat exchange of air. The first air inlet and the first air outlet form one of the air flow paths, the air to be heated enters the heat exchange cavity 411 through the first air inlet, heat exchange is performed inside the heat exchange cavity 411, and after the temperature rises, the air is discharged out of the housing 41 through the first air outlet. The second air inlet and the second air outlet form a second air flow path, hot air enters the heat exchange cavity 411 through the second air inlet, the hot air serves as a heat source, the hot air entering the heat exchange cavity 411 can exchange heat with air to be heated, the temperature of the air to be heated is increased, the temperature of the hot air is reduced, the air to be heated is discharged from the first air outlet after reaching a target temperature, and the hot air after heat exchange is discharged out of the shell 41 through the second air outlet.

Through first air inlet, first gas outlet, two flow path of air are constituteed to second air inlet and second gas outlet in this application, flow path to every air, to waiting to heat air and hot-air promptly, all there are corresponding air inlet and gas outlet, can make the air in the heat transfer chamber 411 flow ground more smoothly, the air in the heat transfer chamber 411 can be flowed from first gas outlet or second gas outlet nearby, reduce the noise problem that the air vortex and appear in casing 41 inside, reduce the loss of velocity of flow/pressure in the heat transfer chamber 411 as far as possible, can guarantee the circulation efficiency of air, guarantee the production beat.

It should be noted that, in order to enable the air to flow according to the predetermined air flow path, a driving member is disposed on the air flow path, and the driving member is used for driving the air to enter the heat exchange cavity 411 from the first air inlet and then to be discharged from the first air outlet.

Conceivably, the driving member also serves to drive air from the second air inlet into the heat exchange chamber 411 and then out of the second air outlet.

For example, the drive may be a drive fan.

Alternatively, as shown in fig. 1, the first air inlet and the first air outlet are respectively provided on two adjacent wall surfaces of the housing 41.

In the embodiment of the present application, the housing 41 has two adjacent wall surfaces, the heat exchange cavity 411 is located between two opposite wall surfaces, the first air inlet and the second air inlet are located on two adjacent wall surfaces, so, for one of the flow paths of the air, the air to be heated can enter the heat exchange cavity 411 through the first air inlet, the air after heat exchange can be discharged through the first air outlet, the movement path of the air to be heated in the heat exchange cavity 411 is close to one corner of the heat exchange cavity 411, mutual blocking between the air to be heated and the hot air is avoided as much as possible, and the flow rate/pressure loss can be further reduced.

Alternatively, when the housing 41 includes six walls, for example, an up-down direction wall, a left-right direction wall, and a front-rear direction wall, then the first air inlet and the first air outlet may be provided in the six walls, optionally adjacent to each other.

Alternatively, as shown in fig. 1, the second air inlet and the second air outlet are respectively provided on two adjacent wall surfaces of the housing 41.

In the embodiment of the present application, for the second flow path of the air, the hot air can enter the heat exchange cavity 411 through the second air inlet, the air after heat exchange can be discharged through the second air outlet, the movement path of the hot air in the heat exchange cavity 411 is close to one corner of the heat exchange cavity 411, so as to avoid mutual obstruction between the air to be heated and the hot air as much as possible, and further reduce the flow rate/pressure loss.

It is conceivable for the second inlet opening and the second outlet opening to also be arranged in the six walls, optionally adjacent to one another.

Alternatively, as shown in fig. 1, the housing 41 includes a top wall, a bottom wall, and a plurality of side walls, the top wall and the bottom wall being arranged in the up-down direction, the second air inlet being provided on the bottom wall, and the first air outlet being provided on the top wall. A plurality of side walls are arranged between the top wall and the bottom wall, the first air inlet is arranged on one side wall, and the second air outlet is arranged on the other side wall.

In the embodiment of the present application, the housing 41 includes a top wall, a bottom wall and a plurality of side walls, the top wall and the bottom wall are arranged along the up-down direction, the second air inlet is provided on the bottom wall, that is, the hot air passes through the heat exchange cavity 411 from bottom to top, and is adapted to the upward flowing trend of the hot air, so that the flowing of the hot air can be smoother, and the resistance of the flowing process can be reduced. The first air outlet is formed in the top wall, and since the temperature of the air to be heated rises after the air to be heated is heated in the heat exchange cavity 411, the air to be heated is discharged through the first air outlet in the top wall, and the air to be heated is also suitable for the flowing trend of high-temperature air flow.

In other words, for the second air flow path, the hot air flows into the heat exchange cavity 411 from the bottom to the top, and then flows out through the second air outlet on the sidewall.

Wherein a plurality of side walls are provided between the top wall and the bottom wall, the plurality of side walls can be understood as peripheral wall surfaces, such as a front side wall, a rear side wall, a left side wall and a right side wall. The first air inlet is formed in one of the side walls, and the second air outlet is formed in the other of the side walls. For example, the first air inlet is provided on one of the front and rear side walls, and the second air outlet is provided on the other of the front and rear side walls. Alternatively, the first air inlet is provided on one of the left and right side walls, and the second air outlet is provided on the other of the left and right side walls.

For example, the first air inlet is provided on the left side wall, and the second air outlet is provided on the right side wall. Then, for one of the flow paths of the air, the air to be heated enters the heat exchange cavity 411 from left to right through the first air inlet, and then is discharged upwards through the first air outlet after heat exchange.

For the second flow path of the air, the hot air enters the heat exchange cavity 411 from the bottom to the top through the second air inlet, exchanges heat with the air to be heated in the heat exchange cavity 411, and then is discharged out of the housing 41 through the second air outlet from the right.

The air flow paths can realize heat exchange, and the flow paths of the air flow paths and the air flow paths cannot be combined with each other to influence the efficiency.

Optionally, the first gas inlet and the second gas outlet are arranged coaxially.

In the embodiment of the present application, the first air inlet and the second air outlet respectively have a central axis, the direction of the central axis is the flowing direction of the air passing through the first air inlet or the second air outlet, when the central axes of the first air inlet and the second air outlet are coaxially arranged, then for the flowing path of the air, the air to be heated and the hot air can meet in the heat exchange cavity 411, so as to realize heat exchange, raise the temperature of the air to be heated, and at the same time, also reduce the flow rate/pressure loss in the flowing process.

Optionally, the second inlet port and the first outlet port are coaxially arranged.

In the embodiment of the present application, the second air inlet and the first air outlet respectively have a central axis, the direction of the central axis is the flowing direction of the air passing through the second air inlet or the first air outlet, when the central axes of the second air inlet and the first air outlet are coaxially arranged, then for the flowing path of the air, the air to be heated and the hot air can meet in the heat exchange cavity 411, so as to realize heat exchange, and raise the temperature of the air to be heated, and at the same time, the flow rate/pressure loss in the flowing process can also be reduced.

In an embodiment of the present application, the flow cross-sectional area refers to the area of the first inlet port in a cross-section perpendicular to the central axis, i.e. the cross-section of the first inlet port. When the first air inlet is a circular hole, the through-flow cross-sectional area of the first air inlet is a circular area. The definition of the cross-sectional flow area also applies for the first outlet opening, the second inlet opening and the second outlet opening.

As for the flow path of the air, the air enters the inside of the heat exchange cavity 411 through the air inlets (the first air inlet and the second air inlet), exchanges heat inside the heat exchange cavity 411, and then is discharged from the air outlets (the first air outlet and the second air outlet).

According to the flow requirement of air, the flow of the first air inlet and the second air inlet is smaller than that of the second air inlet and the second air outlet, and the flow of hot air is required to be larger in order to provide enough heat as the second air flow path of the heat source, so that the heat exchange requirement can be met.

Optionally, as shown in fig. 1, the hot air delivery device 4 further includes a first air inlet pipe 421, and the first air inlet pipe 421 is disposed on the housing 41 and is communicated with the heat exchange cavity 411 through a first air inlet.

In the embodiment of the present application, the hot air delivery device 4 further includes a first air inlet pipe 421, the first air inlet pipe 421 is disposed on the housing 41 and is communicated with the heat exchange cavity 411 through a first air inlet, and the first air inlet pipe 421 can be conveniently assembled and connected with the to-be-mounted structure, and can be adapted to different mounting requirements of the to-be-mounted structure.

Optionally, the first air inlet pipe 421 is detachably disposed on the housing 41, and the first air inlet pipe 421 can be assembled and disassembled as required.

Optionally, as shown in fig. 1, the hot air conveying device 4 further includes a first air outlet pipe 422, and the first air outlet pipe 422 is disposed on the casing 41 and is communicated with the heat exchange cavity 411 through the first air outlet.

In the embodiment of this application, hot-air conveying device 4 still includes first outlet duct 422, and first outlet duct 422 establishes on casing 41 and communicates with heat transfer chamber 411 through first gas outlet, and first outlet duct 422 can conveniently with treat mounting structure be assembled between/be connected between, can be adapted to the different installation demands of treating mounting structure.

Optionally, first outlet duct 422 is detachably disposed on housing 41, and first outlet duct 422 can be disassembled and assembled as required.

For one of the air flow paths, the air to be heated enters the heat exchange cavity 411 through the first air inlet tube 421 and the first air inlet, and after the heat exchange process is completed in the heat exchange cavity 411, the air is exhausted to the outside of the heat exchange cavity 411 through the first air outlet tube 422 and the first air outlet tube.

Optionally, as shown in fig. 1, the hot air delivery device 4 further includes a second air inlet pipe 423, and the second air inlet pipe 423 is disposed on the housing 41 and is communicated with the heat exchange cavity 411 through a second air inlet.

In the embodiment of the present application, the hot air delivery device 4 further includes a second air inlet pipe 423, the second air inlet pipe 423 is disposed on the housing 41 and is communicated with the heat exchange cavity 411 through a second air inlet, and the second air inlet pipe 423 can be conveniently assembled and connected with the to-be-mounted structure, and can be adapted to different mounting requirements of the to-be-mounted structure.

Optionally, the second air inlet pipe 423 may be detachably disposed on the housing 41, and the second air inlet pipe 423 may be detached as required.

Optionally, as shown in fig. 1, the hot air delivery device 4 further includes a second air outlet duct 424, and the second air outlet duct 424 is disposed on the housing 41 and is communicated with the heat exchange cavity 411 through a second air outlet.

In the embodiment of this application, hot-air conveying device 4 still includes second outlet duct 424, and second outlet duct 424 establishes on casing 41 and communicates with heat transfer chamber 411 through the second gas outlet, and second outlet duct 424 can conveniently with treat mounting structure be assembled between/be connected between, can be adapted to the different mounting demand of treating mounting structure.

Optionally, the second air outlet pipe 424 is detachably disposed on the housing 41, so that the second air outlet pipe 424 can be disassembled and assembled according to requirements.

For the second flow path of air, the air to be heated enters the heat exchange cavity 411 through the second air inlet pipe 423 and the second air inlet, and after the heat exchange process is completed in the heat exchange cavity 411, the air is discharged to the outside of the heat exchange cavity 411 through the second air outlet pipe 424 and the second air outlet pipe 423.

Fourteenth embodiment

The inventor of the present application has found that when hot air is used as a heat source and enters the heat exchange cavity 411 from the second air inlet, when the heat preservation performance of the housing 41 is not excellent enough, a part of heat will be diffused to the outside through the housing 41, and the part of heat cannot act on the air to be heated, resulting in unnecessary loss of heat.

To this end, as shown in fig. 6, an embodiment of the present application by the inventor of the present application proposes an improved hot air delivery device 4, which is mainly improved by further adding a fourth insulating layer 43 on the original base, where the fourth insulating layer 43 is disposed on the shell 41 and located in the heat exchange cavity 411.

In the embodiment of this application, be equipped with fourth heat preservation 43 on the inner wall of casing 41, fourth heat preservation 43 is used for the inside heat in separation heat transfer chamber 411 to the outside propagation of casing 41 for the heat that brings as the hot-air of heat source can be gathered in the inside of heat transfer chamber 411, thereby can promote the heat exchange between air to be heated and the hot-air as far as possible, avoids thermal meaningless loss.

In addition, establish the fourth heat preservation 43 inside the casing 41 and can also provide structural strength for casing 41 and support, avoid making casing 41 atress condition change because of expend with heat and contract with cold, cause casing 41 deformation scheduling problem.

Alternatively, the hot air inside the heat exchange cavity 411 has a tendency to flow upward, and then, the fourth insulation layer 43 may be provided on the top inner wall of the housing 41, thereby reducing material costs while insulating heat.

Optionally, the fourth insulation layer 43 is disposed on the entire inner wall of the housing 41, so that the possibility of hot air spreading to the outside of the housing 41 is reduced as much as possible, further enhancing the heat exchange efficiency.

Fifteenth embodiment

In the installation process of the hot air conveyor 4, there is a need to adapt to different positions to be installed due to the diversification of the positions to be installed.

For this reason, the inventor of the present application has optimized the design in the above-described embodiment, and as shown in fig. 6, the hot air delivery device 4 further includes a support 44, and the support 44 is provided on the housing 41.

In the embodiment of the present application, the support 44 is provided on the housing 41, and the housing 41 may be mounted to a position to be mounted through the support 44. The structure of the housing 41 can be fixed, and the specific structure of the supporting member 44 can be adjusted adaptively according to the requirements of the position to be installed.

For example, the support 44 may be a hoisting structure for hoisting the housing 41 at the position to be installed. Alternatively, the support 44 may be a support leg by which the housing 41 is installed at a position to be installed, for example, on the ground.

In addition, the supporting member 44 can also realize the suspension of the housing 41, so that the supporting member 44 is not in direct contact with the position to be installed, thereby avoiding the potential safety hazard problem caused by the outward transmission of heat.

Optionally, the support 44 is provided on the bottom wall of the housing 41.

In the embodiment of the present application, the supporting member 44 is disposed on the bottom wall of the housing 41, and the supporting member 44 can be supported on the ground, at this time, the whole housing 41 is disposed overhead with respect to the ground, so that an assembly space is provided between the housing 41 and the ground, when the second air inlet pipe 423 located at the bottom needs to be communicated with the second air inlet, the assembly space can be provided for the second air inlet pipe 423, and the overall structure compactness of the hot air conveying device 4 can also be improved.

In a specific embodiment, the waste recycling device is used for recycling carbon fiber reinforced composite materials, wherein the waste recycling device comprises a superheated steam generator 2, a recycling furnace 1, a thermal energy conversion combustion furnace 3 and a hot air conveying device 4, and a high-temperature-resistant pipeline, a flange, a valve and the like are arranged between the components for realizing gas transmission and flow regulation. In order to achieve a controllable adjustment of the regeneration treatment device, a control assembly is also provided.

In the operation process of the waste regeneration treatment equipment, water is firstly introduced into the superheated steam generator 2, water is heated to generate saturated steam, and the saturated steam is heated to become high-temperature superheated steam with the oxygen content of less than 0.3% and the normal pressure of 400-700 ℃. The superheated steam is introduced into the regeneration treatment furnace 1 through a pipeline, the micro-aerobic superheated steam with the temperature of 400-700 ℃ at normal pressure is used as a heating source and an anaerobic protection medium, anaerobic protection and heating are carried out on the carbon fiber reinforced Composite (CFRP) waste in the regeneration treatment furnace 1 for 1-6 hours, so that the resin matrix in the carbon fiber reinforced Composite (CFRP) waste is completely gasified, and the separation of carbon fiber filaments and matrix resin in the carbon fiber reinforced Composite (CFRP) waste is realized. At the moment, the temperature in the regeneration treatment furnace 1 is controlled to be 400-500 ℃, hot compressed air is input, carbon deposited on the surface of the gasified carbon fiber reinforced composite material (CFRP) waste is completely removed through high-temperature air heat flow, the recycled regenerated carbon fiber has no carbon deposited 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. Combustible organic micromolecular gas decomposed by matrix resin in the regeneration treatment furnace 1 enters the heat energy conversion combustion furnace 3 through a high-temperature resistant pipeline, a heat source with the temperature of about 900 ℃ generated after combustion enters the superheated steam generator 2 and the regeneration treatment furnace 1 through a pipeline and a valve to be used as a heating heat source, and the cost of carbon fiber recovery is greatly saved. Meanwhile, the heat source generated after passing through the heat energy conversion combustion furnace 3 is clean gas and can be directly discharged. In addition, a full-automatic feeding, discharging and discharging device is designed, and large-scale industrial production can be realized.

It is worth mentioning that the waste recycling treatment equipment provided by the application realizes that carbon fiber reinforced Composite (CFRP) waste is recycled to carbon fiber precursors under the condition of no oxidation and no combustion, the surface of the carbon fiber precursors is clean, no carbon deposit residue exists, the mechanical property is kept above 90%, and the recycling of high-value materials is realized.

Meanwhile, combustible organic micromolecular gas generated by thermal decomposition of carbon fiber reinforced Composite (CFRP) waste can be recycled, the cost for recycling carbon fiber is greatly saved, zero emission of equipment is realized, and zero pollution is realized.

The following will specifically describe the recycling process of the waste recycling apparatus:

the first step is as follows: the fiber reinforced composite waste is put into a skip car 121, the skip car enters the regeneration treatment furnace 1, and the furnace door is closed.

The second step: the temperature of the thermal energy conversion combustion furnace 3 is set to 900 ℃, natural gas is ignited by the second burner 313, and the natural gas is heated to 900 ℃.

The third step: the superheated steam temperature of the superheated steam generator 2 is adjusted to a set temperature (400 ℃ -700 ℃) by the control assembly 118.

The fourth step: water is fed into the superheated steam generator 2 to heat the water to generate saturated steam, and the saturated steam is reheated to become high-temperature superheated steam with a set temperature (400-700 ℃).

The fifth step: heating the regeneration treatment furnace 1, and introducing superheated steam with a set temperature (400-700 ℃) into the regeneration treatment furnace 1 through a pipeline after the temperature reaches about 100 ℃.

And a sixth step: the amount of the steam entering the regeneration treatment furnace 1 is adjusted according to the amount of the recycled fibers, so that the whole regeneration treatment furnace 1 is filled with superheated steam.

The seventh step: the temperature in the regeneration treatment furnace 1 is adjusted to a set temperature (400 ℃ -700 ℃) by the control unit 118. The fiber reinforced composite waste will be exposed to superheated steam at 400-700 c.

The eighth step: the fiber reinforced composite waste begins to decompose in a superheated steam atmosphere at 400 ℃ to 700 ℃.

The ninth step: the temperature is kept for 1 to 6 hours at the set temperature of 400 to 700 ℃, the fiber reinforced composite material waste is not oxidized and burnt in the regeneration treatment furnace 1 at normal pressure, and the matrix resin on the surface of the fiber reinforced composite material waste is completely gasified.

The tenth step: combustible organic micromolecular gas (pyrolysis gas) and superheated steam mixed gas generated by decomposing fiber reinforced composite waste in the regeneration treatment furnace 1 enter the heat energy conversion combustion furnace 3 through a fan, a pipeline and a valve.

The eleventh step: when the mixed gas is enough, the natural gas which is originally heated in the heat energy conversion combustion furnace 3 is replaced.

A twelfth step: the mixed gas becomes a clean heat source of 900 ℃ after being completely combusted by the heat energy conversion combustion furnace 3, and enters the superheated steam generator 2 and the regeneration treatment furnace 1 through a pipeline and a valve to be used as a heating heat source to replace the electric heating provided by the original heating device 117.

The thirteenth step: after the matrix resin on the surface of the fiber reinforced composite waste is completely gasified, carbon still remains on the surface. At this time, the supply of the superheated steam in the regeneration treatment furnace 1 is stopped, and the heated compressed air can be introduced into the regeneration treatment furnace 1 through the hot air supply device 4 or the heat energy conversion furnace 3.

The fourteenth step is that: the amount of air introduced into the regeneration treatment furnace 1 is adjusted according to the amount of the recovered fibers.

The fifteenth step: the temperature in the regeneration treatment furnace 1 is controlled to be 400-500 ℃ by the control component 118, so that carbon deposited on the surface of the gasified fiber reinforced composite material waste is completely removed.

Sixteenth step: the clean heat source at 900 ℃ can be directly discharged after being reused, and the surplus clean heat source can be used as a heat source for other purposes.

Seventeenth step: the heat source is turned off, the furnace door 119 of the regeneration treatment furnace 1 is opened, and the skip 121 automatically takes out the regenerated carbon fiber precursor.

It will be evident to those skilled in the art that the 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.

In summary, the present application provides:

k1 a waste recycling apparatus for fiber reinforced composite waste, the waste recycling apparatus comprising:

a regeneration treatment furnace comprising a treatment furnace chamber for receiving the fiber reinforced composite waste;

and the heat energy conversion combustion furnace is respectively communicated with the treatment furnace cavity and the superheated steam generator, can ignite pyrolysis gas from the treatment furnace cavity to form nontoxic hot gas, and can convey the nontoxic hot gas to the superheated steam generator and/or the regeneration treatment furnace.

K2. The waste recycling apparatus according to K1, wherein the recycling furnace comprises:

the treatment furnace shell is arranged in the treatment furnace shell;

the superheated steam generator can be communicated with the treatment furnace cavity through the gas inlet assembly so as to convey superheated steam into the treatment furnace cavity;

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

the second exhaust assembly is arranged on the treatment furnace shell and communicated with the treatment furnace cavity, and the treatment furnace cavity can be communicated with the heat energy conversion combustion furnace through the second exhaust assembly so as to exhaust the pyrolysis gas into the heat energy conversion combustion furnace;

and the heating device is arranged on the treatment furnace shell and can heat the inside of the treatment furnace cavity.

K3. The waste recycling apparatus according to K2, wherein the recycling furnace further comprises:

and the control component is arranged on the treatment furnace shell and is used for regulating and controlling the internal temperature of the treatment furnace cavity and/or the internal pressure in the treatment furnace cavity.

K4. The waste recycling apparatus according to K3, wherein the recycling furnace further comprises:

the inner shell is arranged inside the processing furnace shell, the inner shell is provided with the processing furnace cavity, a heating chamber which is not communicated with the processing furnace cavity is arranged between the inner shell and the processing 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 treatment furnace cavity, and the second temperature sensor is used for detecting the temperature in the heating chamber.

K5. The waste recycling apparatus according to K4, wherein the recycling furnace further comprises:

and the heat supplementing air inlet is arranged on the treatment furnace shell and is communicated with the heating chamber.

K6. The waste recycling apparatus according to any one of K2 to K5, wherein,

a material port is formed in one side of the treatment furnace shell;

the regeneration treatment furnace further comprises:

the furnace door is movably arranged on the processing furnace shell so as to open and close the material port;

and the sealing piece is arranged on the furnace door, and is clamped between the furnace door and the treatment furnace shell under the condition that the furnace door closes the material port.

K7. The waste recycling apparatus according to K6, wherein the recycling furnace further comprises:

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

K8. The waste recycling apparatus according to K4 or K5, wherein the recycling furnace further comprises:

and the first heat preservation layer is arranged between the inner shell and the treatment furnace shell.

K9. The waste recycling apparatus according to K6, wherein,

the air inlet assembly and the second exhaust assembly are arranged on one side, deviating from the furnace door, of the processing furnace shell, and the first exhaust assembly is arranged on the top of the processing furnace shell.

K10. The waste recycling apparatus according to any one of K2 to K5, wherein,

the heating device includes a plurality of heating parts uniformly disposed around the process furnace chamber.

K11. The waste recycling apparatus according to any one of K1 to K5, wherein,

the superheated steam generator includes:

the inner container is provided with an installation cavity;

the outer liner is arranged on one side of the inner liner, which is far away from the mounting cavity, and a steam channel is arranged between the outer liner and the inner liner;

a heating element, at least a portion of which is located within the mounting cavity;

the control component of the waste regeneration treatment equipment further comprises a temperature control part, and the temperature control part is connected with the heating part.

K12. The waste recycling apparatus according to K11, wherein,

the heating parts comprise a first heating part and a second heating part, and the temperature control part is arranged on the first heating part and/or the second heating part;

the steam channel includes:

a first steam channel including an inlet, the first heating element for heating the first steam channel;

and the second steam channel is communicated with the first steam channel and comprises a steam outlet, and the second heating element is used for heating the second steam channel.

K13. The waste recycling apparatus according to K12, wherein,

at least a portion of the second steam path extends in a serpentine manner relative to the first steam path.

K14. The waste recycling apparatus according to K12, wherein,

the first steam channel extends in a first direction;

the second steam passage includes communicating channel and steam discharging passage, the steam discharging passage passes through the communicating channel with first steam passage intercommunication, the steam discharging passage is followed the first direction extends, the communicating channel along with the second direction that the first direction is different extends.

K15. The waste recycling apparatus of any one of K12 to K14, wherein the superheated steam generator further comprises:

the generator shell is provided with an assembly cavity, and at least one part of the inner container and at least one part of the outer container are positioned in the assembly cavity;

and the second heat-insulating layer is arranged in the assembly cavity and is positioned between the outer liner and the generator shell.

K16. The waste recycling apparatus of K15, wherein the superheated steam generator further comprises:

and the reinforcing ribs are arranged on the generator shell at intervals.

K17. The waste recycling apparatus of any one of K12 to K14, wherein the superheated steam generator further comprises:

a drain assembly communicable with the steam channel.

18. The waste recycling apparatus according to any one of K1 to K5, the thermal energy conversion combustion furnace comprising:

a conversion furnace shell having a conversion furnace cavity;

the first burner is arranged on the conversion furnace shell and communicated with the conversion furnace chamber, and the first burner is used for igniting pyrolysis gas;

the second burner is arranged on the conversion furnace shell and communicated with the conversion furnace cavity, and the second burner is used for igniting gas;

and the third exhaust assembly is arranged on the conversion furnace shell and communicated with the conversion furnace cavity.

K19. The waste recycling apparatus according to K18, wherein,

the first burner and the third exhaust assembly are arranged on two opposite side walls of the conversion furnace shell.

K20. The waste recycling apparatus according to K18, wherein,

the second burner is arranged on the top wall of the conversion furnace shell.

K21. The waste reclamation apparatus of K18, wherein the third exhaust assembly comprises:

at least two exhaust ports are arranged on the converter shell;

and the switching valve is arranged at the at least two exhaust ports, and the at least two exhaust ports can be communicated with the conversion furnace chamber through the switching valve.

K22. The waste recycling apparatus of any of claims K19-K21, wherein the control assembly of the waste recycling apparatus is further configured to regulate an internal temperature of the conversion furnace chamber and/or an internal pressure of the conversion furnace chamber.

K23. The waste recycling apparatus according to any one of K19 to K21, wherein the thermal energy conversion combustion furnace further includes:

and the safety cap is arranged on the conversion furnace shell.

K24. The waste recycling apparatus according to any one of K19 to K21, wherein the thermal energy conversion burner further comprises:

and the dropping liquid hole is arranged on the conversion furnace shell.

K25. The waste recycling apparatus according to any one of K19 to K21, wherein the thermal energy conversion combustion furnace further includes:

and the third heat-insulating layer is arranged on the inner wall of the conversion furnace shell.

K26. The waste recycling apparatus according to any one of K19 to K21, wherein,

the converter shell is provided with a perspective window, and the perspective window is detachably arranged on the converter shell.

K27. The waste recycling apparatus of any one of K1 to K5, further comprising:

the hot air conveying device can be communicated with the treatment furnace chamber and conveys hot air into the treatment furnace chamber;

wherein the hot air delivery device and the superheated steam generator are alternatively communicated with the process furnace chamber.

K28. The waste recycling apparatus according to K27, wherein the hot air supply device further comprises:

a housing comprising a heat exchange cavity;

the first air inlet and the first air outlet are respectively arranged on the shell and are communicated with the heat exchange cavity, and the first air inlet is used for inputting air to be heated;

and the second air inlet and the second air outlet are respectively arranged on the shell and are communicated with the heat exchange cavity, and the second air inlet is used for inputting hot air.

K29. The waste recycling apparatus according to K28, wherein,

the first air inlet and the first air outlet are respectively arranged on two adjacent wall surfaces of the shell; and/or

The second air inlet and the second air outlet are respectively arranged on two adjacent wall surfaces of the shell.

K30. The waste recycling apparatus of K29, wherein the housing comprises:

the top wall and the bottom wall are arranged in the vertical direction, the second air inlet is formed in the bottom wall, and the first air outlet is formed in the top wall;

and the plurality of side walls are arranged between the top wall and the bottom wall, the first air inlet is arranged on one of the plurality of side walls, and the second air outlet is arranged on the other one of the plurality of side walls.

K31. The waste recycling apparatus according to K29, wherein,

the first air inlet and the second air outlet are coaxially arranged; and/or

The second air inlet and the first air outlet are coaxially arranged.

K32. The waste recycling apparatus according to K29, wherein,

the flow cross-sectional area of any one of the first air inlet and the first air outlet is smaller than that of any one of the second air inlet and the second air outlet.

K33. The waste recycling apparatus of any of K28 to K32, wherein the hot air transfer device further comprises:

the first air inlet pipe is arranged on the shell and is communicated with the heat exchange cavity through the first air inlet; and/or

The first air outlet pipe is arranged on the shell and communicated with the heat exchange cavity through the first air outlet; and/or

The second air inlet pipe is arranged on the shell and communicated with the heat exchange cavity through the second air inlet; and/or

And the second air outlet pipe is arranged on the shell and is communicated with the heat exchange cavity through the second air outlet.

K34. The waste recycling apparatus of any of K28 to K32, wherein the hot air transfer device further comprises:

and the fourth heat-insulating layer is arranged on the shell and is positioned in the heat exchange cavity.

K35. The waste recycling apparatus of any one of K28 to K32, wherein the hot air delivery device further comprises:

a support member provided on the housing.

K36. The waste recycling apparatus according to K35, wherein,

the support member is provided on the bottom wall of the housing.

Claims

1. A waste recycling apparatus for fibre reinforced composite waste, the waste recycling apparatus comprising:

a regeneration treatment furnace comprising a treatment furnace chamber for containing the fiber reinforced composite waste;

2. The waste recycling apparatus of claim 1, wherein the recycling furnace comprises:

the treatment furnace shell is internally provided with a treatment furnace cavity;

3. The waste recycling apparatus of claim 2, wherein the recycling furnace further comprises:

4. The waste recycling apparatus of claim 3, wherein the recycling furnace further comprises:

5. The waste recycling apparatus of claim 4, wherein the recycling furnace further comprises:

6. The waste recycling apparatus of any one of claims 4 or 5,

one side of the processing furnace shell is provided with a material port;

the regeneration treatment furnace further comprises:

the sealing element is arranged on the furnace door, and is clamped between the furnace door and the treatment furnace shell under the condition that the furnace door closes the material port;

the regeneration treatment furnace further comprises:

a cooling assembly disposed at one side of the sealing member;

the regeneration treatment furnace further comprises:

the first heat preservation layer is arranged between the inner shell and the treatment furnace shell;

7. The waste recycling apparatus of any one of claims 1 to 5,

the superheated steam generator includes:

the inner container is provided with an installation cavity;

the control component of the waste regeneration treatment equipment further comprises a temperature control element, and the temperature control element is connected with the heating element;

the steam passage includes:

a second steam passage in communication with the first steam passage, the second steam passage including a steam outlet, the second heating element for heating the second steam passage;

at least a portion of the second vapor passage extends in a serpentine manner relative to the first vapor passage;

the first steam channel extends in a first direction;

the second steam channel comprises a communication channel and a steam exhaust channel, the steam exhaust channel is communicated with the first steam channel through the communication channel, the steam exhaust channel extends along the first direction, and the communication channel extends along a second direction different from the first direction;

the superheated steam generator further includes:

the second heat-insulating layer is arranged in the assembly cavity and is positioned between the outer liner and the generator shell;

the superheated steam generator further comprises:

the reinforcing ribs are arranged on the generator shell at intervals;

the superheated steam generator further includes:

a drain assembly communicable with the steam channel.

8. The waste reclamation processing apparatus as recited in any one of claims 1 to 5, the thermal energy conversion burner comprising:

a conversion furnace shell having a conversion furnace cavity;

the third exhaust assembly is arranged on the conversion furnace shell and communicated with the conversion furnace cavity;

the first burner and the third exhaust assembly are arranged on two opposite side walls of the conversion furnace shell;

the second burner is arranged on the top wall of the conversion furnace shell;

the third exhaust assembly includes:

at least two exhaust ports are arranged on the converter shell;

the switching valve is arranged at the at least two exhaust ports, and the at least two exhaust ports can be communicated with the conversion furnace chamber through the switching valve;

the control assembly of the waste recycling treatment equipment is also used for regulating and controlling the internal temperature of the conversion furnace chamber and/or the internal pressure of the conversion furnace chamber;

the thermal energy conversion furnace further comprises:

the safety cap is arranged on the conversion furnace shell;

the thermal energy conversion furnace further comprises:

the dropping hole is arranged on the conversion furnace shell;

the thermal energy conversion furnace further comprises:

the third heat-insulating layer is arranged on the inner wall of the conversion furnace shell;

9. The waste recycling apparatus of any of claims 1 to 5, further comprising:

wherein the hot air delivery device and the superheated steam generator are alternatively communicated with the treatment furnace chamber;

the hot air delivery device further comprises:

a housing comprising a heat exchange cavity;

the second air inlet and the second air outlet are respectively arranged on the shell and are communicated with the heat exchange cavity, and the second air inlet is used for inputting hot air;

The second air inlet and the second air outlet are respectively arranged on two adjacent wall surfaces of the shell;

the housing includes:

a plurality of side walls disposed between the top wall and the bottom wall, the first air inlet being disposed on one of the plurality of side walls and the second air outlet being disposed on another of the plurality of side walls;

the first air inlet and the second air outlet are coaxially arranged; and/or

The second air inlet and the first air outlet are coaxially arranged;

the flow cross-sectional area of any one of the first gas inlet and the first gas outlet is smaller than the flow cross-sectional area of any one of the second gas inlet and the second gas outlet;

the hot air delivery device further includes:

the first air inlet pipe is arranged on the shell and communicated with the heat exchange cavity through the first air inlet; and/or

The second air outlet pipe is arranged on the shell and communicated with the heat exchange cavity through the second air outlet;

the hot air delivery device further includes:

the fourth heat-insulating layer is arranged on the shell and is positioned in the heat exchange cavity;

the hot air delivery device further includes:

a support member provided on the housing.

10. The waste recycling apparatus of claim 9,

the support member is provided on the bottom wall of the housing.