Waste heat recovery device

Abstract

The invention discloses a waste heat recovery device, and relates to the technical field of waste heat recovery, and the waste heat recovery device is characterized in that a box body is internally provided with a cavity; the feeding assembly is communicated with the cavity; the dispersing assembly faces the materials and is used for dispersing the materials; the heat exchange assembly comprises a plurality of heat exchange pieces arranged along a flowing path of a material, the heat exchange pieces are communicated with the flowing path of the material through heat exchange channels, the heat exchange assembly comprises a first heat exchange piece, and the first heat exchange piece is communicated with the dispersion assembly through a first heat exchange channel; the multiple heat exchange pieces are arranged along the flowing path of the materials, waste heat of the materials is absorbed step by step, effective recycling of the waste heat of the materials is achieved, the materials are dispersed through the dispersing assembly, the contact area of the materials and the heat exchange assemblies is increased, energy in the materials is fully absorbed by the heat exchange assemblies, and the heat exchange efficiency is improved. The first heat exchange piece absorbs heat generated by the dispersion assembly through the first heat exchange channel and / or the heat of the materials received by the dispersion assembly, and further recovery of the waste heat of the materials is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of waste heat recovery, and in particular to a waste heat recovery device. Background Art

[0002] In the prior art, a large amount of waste heat resources such as high-temperature slag have considerable energy, but are often wasted. Therefore, how to efficiently recover the waste heat resources has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0003] The purpose of the present invention is to provide a waste heat recovery device to solve the problems existing in the above-mentioned prior art and achieve efficient recovery of heat in waste heat resources.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a waste heat recovery device, which comprises:

[0006] A box body, wherein the box body has a cavity for recovering waste heat of materials;

[0007] A feeding assembly, the feeding assembly is in communication with the cavity and is used to transport materials with residual heat into the cavity;

[0008] A dispersion component, which is disposed toward the material and is used to disperse the material;

[0009] A heat exchange component, wherein the heat exchange component includes a plurality of heat exchange elements arranged along the flow path of the material, wherein the heat exchange elements are connected to the flow path of the material via a heat exchange channel, and wherein the heat exchange component includes a first heat exchange element, wherein the first heat exchange element is connected to the dispersion component via a first heat exchange channel.

[0010] Preferably, the dispersing assembly comprises a first nozzle disposed toward the material;

[0011] And / or, the dispersion assembly includes a first fluidized bed disposed along a flow path of the material;

[0012] And / or, the dispersion assembly includes a vibrating member disposed outside the box and connected to the box;

[0013] And / or, the dispersing component includes a turntable disposed in the cavity, and a first driving device for driving the turntable to rotate, and the turntable is disposed toward the material.

[0014] Preferably, the dispersion assembly comprises a second nozzle disposed toward the material, and a second fluidized bed disposed along a flow path of the material;

[0015] The first heat exchange element is sleeved on the outer side of the second fluidized bed.

[0016] Preferably, the dispersion assembly comprises an input pipeline and a recovery pipeline, the first end of the input pipeline is connected to the second nozzle, the first end of the recovery pipeline is connected to the cavity, and the second end of the input pipeline is connected to the second end of the recovery pipeline.

[0017] Preferably, the second nozzle, the first end of the recovery pipeline and the feed inlet of the cavity are located on the same axis.

[0018] Preferably, the dispersion assembly comprises a stirring member disposed in the cavity;

[0019] Wherein, the stirring member comprises a stirring blade and a second driving device for driving the stirring blade to rotate, and the stirring blade is arranged on the flow path of the material;

[0020] Alternatively, the stirring member includes a plurality of guide plates which are arranged on the inner wall of the cavity and along the circumference of the cavity.

[0021] Preferably, the heat exchange assembly comprises a second heat exchange member disposed in the cavity, the second heat exchange member comprises a plurality of third nozzles disposed circumferentially along an inner wall of the cavity, and the third nozzles are disposed toward the material.

[0022] Preferably, the heat exchange component includes a second heat exchange element and a third heat exchange element, the flow path of the material is located between the second heat exchange element and the third heat exchange element, the second heat exchange element is connected to the flow path of the material through a second heat exchange channel, and the third heat exchange element is connected to the flow path of the material through a third heat exchange channel.

[0023] Compared with the prior art, the present invention has achieved the following technical effects:

[0024] The present invention conveys material with waste heat into the box body through a feeding component, and absorbs the waste heat of the material step by step through a plurality of heat exchange components arranged along the flow path of the material, thereby realizing effective recovery of the waste heat of the material. In addition, the dispersion component is located on the flow path of the material, and at least one heat exchange component is located downstream of the dispersion component. This allows the energy in the material to be fully absorbed by the heat exchange component after the material is dispersed by the dispersion component, thereby increasing the contact area between the material and the heat exchange component, thereby improving the ability to recover the waste heat of the material. Furthermore, in the present invention, the heat generated by the dispersion component itself and / or the heat of the material received by the dispersion component can be absorbed by the first heat exchange component and the first heat exchange channel, thereby realizing further recovery of the waste heat of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a structural schematic diagram of a waste heat recovery device;

[0027] Figure 2 is a schematic side view of a heat exchange component;

[0028] Figure 3 is a top view schematic diagram of a heat exchange component;

[0029] Among them, 1. feed box; 2. feed pipe; 3. feed inlet; 4. second nozzle; 5. box body; 6. second fluidized bed; 7. first heat exchange element; 8. discharge port; 9. booster component; 10. hollow pipe; 11. heat exchange element; 12. recovery pipeline. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 to Figure 3 As shown, the present invention discloses a waste heat recovery device, which includes: a box body 5, wherein the box body 5 has a cavity for recovering waste heat of materials; a feeding assembly, which is connected to the cavity and is used to transport materials with waste heat into the cavity; a dispersion assembly, which is arranged on the flow path of the material and is used to disperse the material; a heat exchange assembly, which includes a plurality of heat exchange elements arranged along the flow path of the material, the heat exchange elements are connected to the flow path of the material through a heat exchange channel, at least one heat exchange element is located downstream of the dispersion assembly, and the heat exchange assembly includes a first heat exchange element 7, which is connected to the dispersion assembly through a first heat exchange channel.

[0033] The present invention conveys material with waste heat into the box body 5 through the feeding component, and absorbs the waste heat of the material step by step through a plurality of heat exchange components arranged along the flow path of the material, thereby realizing effective recovery of the waste heat of the material. In addition, the dispersion component is located on the flow path of the material, and at least one heat exchange component is located downstream of the dispersion component (at least one heat exchange component is located downstream of the dispersion component, which can be specifically understood as the material will pass through at least one heat exchange component for heat exchange after being dispersed by the dispersion component). This allows the energy in the material to be fully absorbed by the heat exchange component after the material is dispersed by the dispersion component, increasing the contact area between the material and the heat exchange component, thereby improving the ability to recover the waste heat of the material. Furthermore, in the present invention, the heat generated by the dispersion component itself and / or the heat of the material received by the dispersion component can be absorbed by the first heat exchange component 7 and the first heat exchange channel, thereby realizing further recovery of the waste heat of the material.

[0034] It should be noted that in the present invention, the heat generated by the dispersion component itself and / or the heat of the material received by the dispersion component can be absorbed by the first heat exchanger 7 and the first heat exchange channel. This sentence means that according to the different locations of the dispersion component and the first heat exchanger 7, the first heat exchanger 7 only absorbs the heat generated by the dispersion component itself, or the first heat exchanger 7 absorbs the heat generated by the dispersion component itself and the heat of the material at the same time. For example, when the dispersion component includes a fluidized bed disposed in the cavity and the first heat exchanger 7 is located outside the fluidized bed, the first heat exchanger 7 absorbs the heat generated by the dispersion component itself and the heat of the material at the same time. When the dispersion component includes a vibrating component disposed outside the box, the first heat exchanger 7 is connected to the vibration motor in the vibrating component and only absorbs the heat generated by the vibrating component, i.e., the dispersion component itself. It should be noted that the "heat exchange component includes several heat exchange elements arranged along the logistics flow path" mentioned in this article does not mean that all the heat exchange elements must be located in the cavity. When the material moves from top to bottom and the vibrating element is arranged under the box body so that the box body vibrates up and down, the first heat exchange element 7 is connected to the vibration motor in the vibrating element. At this time, the material moves from top to bottom, and the first heat exchange element 7 is located on the extension line of the material movement.

[0035] The heat exchange channel and the first heat exchange channel mentioned above in the present invention are not necessarily additional channels, but may also be a part of the heat exchange element or the first heat exchange element 7, which is used to help readers understand the setting method of the heat exchange element. For example, if the heat exchange element is located in the cavity and is arranged along the circumference of the cavity, at this time, the heat exchange channel between the material and the heat exchange element is the heat conduction surface of the heat exchange element facing the material. If the first heat exchange element 7 is arranged outside the first fluidized bed of the dispersion component, the first fluidized bed is equivalent to the first heat exchange channel. In order to ensure that the material is dispersed and granulated by the dispersion component, there is still a heat exchange element to exchange heat with the material, the present invention does not have a situation where the material passes through all the heat exchange elements of the heat exchange component and then passes through the dispersion component.

[0036] Moreover, the box body 5, feeding assembly, dispersion assembly and heat exchange assembly, as well as other components of the waste heat recovery device in the present invention, are all matched with the type of material, so that the waste heat recovery device in the present invention can continuously and efficiently recover the waste heat of the material. For example, each component of the waste heat recovery device in the present invention has sufficient strength, corrosion resistance and other properties, and can recover the waste heat of the material for a long time.

[0037] The shape and arrangement of the box 5 are not unique, as long as they can meet the requirements of material waste heat recovery. The feeding component has a variety of settings, such as Figure 1 As shown, the feeding assembly includes a feed box 1, a feed pipe 2 and a feed port 3, wherein the feed port 3 is connected to the cavity, and the feed box 1 is connected to the feed port 3 through the feed pipe 2; alternatively, the feeding assembly may also only include a feed port 3 connected to the cavity.

[0038] Moreover, the dispersion component in the present invention has a variety of settings. For example, the dispersion component includes a first nozzle arranged toward the material, and a driving member providing power to the first nozzle. The driving member can also be called a booster component 9. The first nozzle has two functions: 1. to exchange heat with the material, and 2. to disperse the material and increase the heat exchange area of ​​the material. Based on the above functional requirements, the first nozzle can spray a heat exchange medium that can exchange heat with the material, such as air, water and other heat exchange media. Different types of driving members are equipped based on different heat exchange media. For example, when the heat exchange medium sprayed by the first nozzle is air, the driving member can be used to increase the heat exchange area of ​​the material. The moving part can be a fan, an air pump or other equipment that can convey air to the first nozzle. When the heat exchange medium sprayed out of the first nozzle is water, the driving part can be a water pump or other equipment that can convey water to the first nozzle, and a water tank that provides water to the first nozzle must also be provided. When the first nozzle is a high-pressure nozzle, the high-pressure heat exchange medium that is continuously sprayed can prevent materials from entering the first nozzle, thereby avoiding blockage of the first nozzle and reducing the maintenance cost of the waste heat recovery device in the present invention. Specifically, the first nozzle can be provided with the power provided by the driving part for the first nozzle, so that the first nozzle is a high-pressure nozzle.

[0039] And / or, the dispersion component includes a first fluidized bed arranged along the flow path of the material. And / or, the dispersion component includes a vibrating member arranged outside the box 5 and connected to the box 5, and the vibrating member may include a vibration motor, and the output end of the vibration motor is connected to the box 5 through a buffer spring. In this way, through the cooperation of the vibration motor and the buffer spring, the box 5 can be repeatedly vibrated, thereby achieving dispersion of the material. And / or, the dispersion component includes a turntable arranged in the cavity, and a first driving device for driving the turntable to rotate, and the turntable is arranged toward the material, wherein the first driving device can specifically be a rotating motor or other device that can drive the turntable to rotate, and the turntable is arranged toward the material, which can be specifically understood as the direction of the turntable being opposite to the direction of material movement. For example, when high-temperature slag or other molten materials with residual heat move from top to bottom, the turntable is arranged on the movement path of the material and is arranged upward. In this way, when the material falls onto the turntable, the material will be thrown out with the rotation of the turntable, and small granular material will be formed when the material is thrown out, which increases the heat exchange area of ​​the material, so that the material can be more effectively exchanged with the subsequent heat exchange structure when exchanging heat. When the dispersion component includes a turntable, the material outlet of the box 5 and the subsequent heat exchange structure of the turntable should be arranged on one side of the turntable to receive the material thrown out by the turntable.

[0040] And / or means that in the same sentence, the text content before and / or and the text content after and / or can exist at the same time or separately. For example, A and / or B. This includes the existence of A and B at the same time, and the existence of only A or B.

[0041] The first nozzle, vibrating member, first fluidized bed and other structures described in the previous paragraph of the present invention may exist alone or in combination. The specific configuration depends on the working conditions. When the dispersion component of the present invention includes two or more structures such as the first nozzle and the vibrating member, it is necessary to ensure that each structure in the dispersion component can play its role in dispersing the materials without interfering with each other.

[0042] The following describes the arrangement when the dispersion assembly includes both a fluidized bed and a nozzle, etc. Figure 1As shown, the dispersion component of the present invention includes a second nozzle 4 arranged toward the material, and a second fluidized bed 6 arranged along the flow path of the material. The second nozzle 4 has the same structure as the first nozzle, and the second fluidized bed 6 has the same structure as the first fluidized bed; the first heat exchanger 7 is sleeved on the outside of the second fluidized bed 6. In this way, after the material enters the cavity, the heat exchange medium sprayed by the second nozzle 4 first blows away the granulated material, increases the heat exchange area of ​​the material, and absorbs part of the residual heat of the material through the heat exchange medium at the same time. Subsequently, as the granulated material flows, the granulated material reaches the fluidized bed, and the fluidized bed keeps the material in a flowing and dispersed state, avoiding the agglomeration of the material. The fluidized bed fluidizes the material and dissipates the heat in the material, so that the residual heat of the material can be effectively absorbed by the first heat exchanger 7, and the fluidized bed can also control the residence time of the material, so that the residual heat of the material is fully recovered and then discharged from the discharge port 8.

[0043] The heat exchange medium sprayed by the first nozzle and the second nozzle 4 needs to enable the material to be blown away and granulated. For this purpose, it is necessary to select a suitable heat exchange medium and a suitable material with waste heat for processing, such as high-temperature slag as the material, and the first nozzle and the second nozzle spray high-pressure gas, etc. Alternatively, other materials and heat exchange media that can be matched to enable the material to be blown away and granulated can also be selected. The first fluidized bed and the second fluidized bed 6 can be specifically a fixed fluidized bed, a vibrating fluidized bed, or other types of fluidized beds, etc. The fluidized bed is a prior art, and the specific structure of the fluidized bed is not repeated here.

[0044] like Figure 1 As shown, the dispersion assembly in the present invention includes an input pipeline and a recovery pipeline 12, the first end of the input pipeline is connected to the second nozzle 4, the first end of the recovery pipeline 12 is connected to the cavity, the second end of the input pipeline is connected to the second end of the recovery pipeline 12, and the input pipeline is also provided with a fan or a water pump or other equipment to provide high-pressure heat exchange medium for the second nozzle 4. The recovery pipeline 12 is also provided with a heat exchanger 11 for heat exchange with the heated heat exchange medium. The heat exchanger 11 allows the heat exchange medium to return to a lower temperature, so that the heat exchange medium can be sprayed out from the second nozzle 4 again through the input pipeline to blow away the granulated material. The heat exchanger 11 on the recovery pipeline 12 allows the heat exchange medium to be recycled through the closed loop formed by the input pipeline, the recovery pipeline 12 and the cavity, reducing the injection of the heat exchange medium and reducing the operating cost of the waste heat recovery device.

[0045] In addition, the first heat exchanger 7 and the heat exchanger on the recovery pipeline 12 can select heat transfer oil as the heat exchange medium. The heat transfer oil is specifically inorganic oil or organic oil that can withstand a temperature of 350 degrees. This type of heat transfer oil has a large thermal enthalpy, a low operating pressure, and can carry away hundreds of times the heat of the same mass of air. It has a stronger heat exchange capacity. At the same time, the pressure required for steam to reach a high temperature of 350 degrees is 10-20 times that of oil.

[0046] like Figure 2 , Figure 3 As shown, the heat exchanger 11 on the recovery pipeline 12 and the heat exchange pipeline in the first heat exchanger 7 can be Z-shaped or serpentine, so as to increase the length of the heat exchange pipeline and increase the heat exchange area. The heat exchanger 11 on the recovery pipeline 12 includes a tube shell and a hollow pipe 10. A heat exchange medium such as heat transfer oil, water or air can be arranged in the tube shell, and the heat exchange medium heated after heat exchange with the material passes through the hollow channel.

[0047] Compared with water and other heat exchange media, heat transfer oil generally has a higher boiling point (usually in the range of 200-400°C), and heat transfer oil usually has higher oxidation resistance and thermal decomposition resistance. It can still maintain a low vapor pressure state at a higher temperature (such as within the allowable temperature range), and is not prone to large-scale evaporation, thereby reducing the loss of heat transfer oil due to evaporation; and the first heat exchange element 7 where the heat transfer oil is located and the heat exchange element 11 in the recovery pipeline 12 are both closed structures, which effectively avoids the contact between the heat transfer oil and the outside world, reduces the oxidation and volatilization of the heat transfer oil, and further reduces the evaporation loss.

[0048] Moreover, the heat exchange pipe is set to be Z-shaped, which prolongs the flow path of the heat transfer oil and can be widely distributed in the heat exchange pipe, so that the flow pressure and speed of the heat transfer oil in the heat exchange pipe are relatively uniform, avoiding the coking problem caused by local overheating. At the same time, the appropriate type of heat transfer oil can be selected according to the working temperature range and heat load conditions to ensure that it has good performance stability within the working temperature of the waste heat recovery device to avoid coking; moreover, it can also be equipped with monitoring equipment such as temperature sensors for detecting the heat transfer temperature, which can monitor the temperature of the heat transfer oil in real time to ensure that it works within a safe allowable temperature range, avoid excessive temperature causing the heat transfer oil to decompose, evaporate or coke, and have a long service life; moreover, the heat transfer oil in the present invention has good thermal stability, and its flash point, ignition point and auto-ignition point are all high. It will not catch fire and burn at the allowable temperature and in a closed state. It is low-toxic and odorless, and does not corrode equipment, reducing the negative impact on the waste heat recovery device and the surrounding environment.

[0049] The first heat exchanger 7 and the heat exchanger 11 on the recovery pipeline 12 can also establish a circulation loop with external heat exchange equipment such as the user end. When the heat exchange medium in the first heat exchanger 7 is heated up by heat exchange with the material, it can be transported to the user end to provide heat for the user end. After the user end uses the heat, the cooled heat exchange medium is transported to the first heat exchanger 7 again, thereby realizing the continuous recovery of the waste heat of the material by the first heat exchanger 7.

[0050] like Figure 1As shown, the second nozzle 4, the first end of the recovery pipeline 12 and the feed inlet 3 of the cavity are located on the same axis in the present invention. This allows the material to flow along a predetermined path after entering the cavity from the feed inlet 3, and then be blown away by the second nozzle 4, and the material is fluidized by the second fluidized bed 6. At the same time, the second nozzle 4, the first end of the recovery pipeline 12 and the feed inlet 3 of the cavity are located on the same axis, so that after the material falls into the cavity, the material and the high-pressure heat exchange medium can contact each other at the first time, so that the material is effectively blown away and granulated, the contact area between the material and the heat exchange medium is increased, the waste heat of the material is efficiently recovered, and the problem of material aggregation or uneven distribution is avoided, so that the granulation of each area of ​​the material and the waste heat recovery effect are more uniform; furthermore, it also avoids the eddy current, turbulence, retention and blockage caused by the feed inlet 3, the second nozzle 4, and the first end of the recovery pipeline 12 not being on the same axis and the material not moving on the predetermined path, thereby improving the fluidity and heat transfer efficiency of the material and reducing heat loss.

[0051] In addition, the dispersion component of the present invention may also include a stirring member arranged in the cavity, wherein the stirring member includes a stirring blade and a second driving device for driving the stirring blade to rotate, and the stirring blade is arranged on the flow path of the material; or, the stirring member includes a plurality of guide plates arranged on the inner wall of the cavity and arranged along the circumference of the cavity. The second driving device can be a rotating motor or other device that can drive the stirring blade to rotate, and the stirring blade is arranged along the circumference of the stirring shaft. The output end of the first driving device is connected to one end of the stirring shaft. When the first driving device drives the stirring shaft to rotate, the stirring blade stirs and disperses the material, increases the contact area between the material and the heat exchange medium, and improves the ability to recover the waste heat of the material. The axis of the stirring shaft has a variety of settings, which can be set parallel to the flow direction of the logistics, and can be set perpendicular to the flow direction of the material. The stirring shaft can also adopt other settings. The setting of the stirring shaft does not affect the flow of the material and the recovery of the waste heat of the material. Alternatively, a plurality of guide plates may be arranged circumferentially on the inner wall of the cavity to extend the flow path of the material in the cavity so that the material is distributed as evenly as possible in the cavity, thereby extending the heat exchange time of the material and increasing the heat exchange area of ​​the material.

[0052] The heat exchange component in the present invention includes a second heat exchange member disposed in the cavity, and the second heat exchange member includes a plurality of third nozzles disposed circumferentially along the inner wall of the cavity, and the third nozzles are disposed toward the material, and the heat exchange medium is sprayed out through the plurality of third nozzles disposed circumferentially along the inner wall of the cavity, so as to form a "heat exchange layer" formed by the heat exchange medium on the material flow path, thereby further increasing the heat exchange area between the heat exchange medium and the material, and achieving more efficient heat exchange. At this point, it should be noted that a channel for the heat exchange medium to flow out after the temperature is increased needs to be set in the cavity, and the channel for the heat exchange medium to flow out needs to be set away from the flow path of the material, so that the heat exchange medium does not affect the subsequent heat exchange of the material.

[0053] The heat exchange component in the present invention includes a second heat exchange member and a third heat exchange member, the flow path of the material is located between the second heat exchange member and the third heat exchange member, the second heat exchange member is connected to the flow path of the material through a second heat exchange channel, and the third heat exchange member is connected to the flow path of the material through a third heat exchange channel. The second heat exchange channel and the third heat exchange channel can be understood as channels for transferring the heat of the material to the second heat exchange member and the third heat exchange member, respectively. By arranging the second heat exchange member and the third heat exchange member inside and outside the flow path of the material, the heat in the material is absorbed in multiple directions, and the efficient recovery of the waste heat of the material is further realized.

[0054] The present invention provides multiple technical solutions, but there is no situation where contrary technical inspiration is given.

[0055] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A waste heat recovery device, characterized in that: The waste heat recovery device comprises: A box body, wherein the box body has a cavity for recovering waste heat of materials; A feeding assembly, the feeding assembly is in communication with the cavity and is used to transport materials with residual heat into the cavity; A dispersion component, which is arranged on the flow path of the material and is used to disperse the material; A heat exchange assembly, wherein the heat exchange assembly comprises a plurality of heat exchange elements arranged along the flow path of the material, and the heat exchange elements are connected to the flow path of the material through a heat exchange channel; At least one of the heat exchange components is located downstream of the dispersion component. The heat exchange component includes a first heat exchange component. The first heat exchange component is connected to the dispersion component through a first heat exchange channel.

2. The waste heat recovery device according to claim 1, characterized in that: The dispersing assembly includes a first nozzle disposed toward the material; And / or, the dispersion assembly includes a first fluidized bed disposed along a flow path of the material; And / or, the dispersion assembly includes a vibrating member disposed outside the box and connected to the box; And / or, the dispersing component includes a turntable disposed in the cavity, and a first driving device for driving the turntable to rotate, and the turntable is disposed toward the material.

3. The waste heat recovery device according to claim 1, characterized in that: The dispersion assembly includes a second nozzle disposed toward the material, and a second fluidized bed disposed along a flow path of the material; The first heat exchange element is sleeved on the outer side of the second fluidized bed.

4. The waste heat recovery device according to claim 3, characterized in that: The dispersion assembly includes an input pipeline and a recovery pipeline, wherein a first end of the input pipeline is connected to the second nozzle, a first end of the recovery pipeline is connected to the cavity, and a second end of the input pipeline is connected to a second end of the recovery pipeline.

5. The waste heat recovery device according to claim 4, characterized in that: The second nozzle, the first end of the recovery pipeline and the feed inlet of the cavity are located on the same axis.

6. The waste heat recovery device according to claim 1, characterized in that: The dispersion assembly includes a stirring member disposed in the cavity; Wherein, the stirring member comprises a stirring blade and a second driving device for driving the stirring blade to rotate, and the stirring blade is arranged on the flow path of the material; Alternatively, the stirring member includes a plurality of guide plates which are arranged on the inner wall of the cavity and along the circumference of the cavity.

7. The waste heat recovery device according to claim 1, characterized in that: The heat exchange component includes a second heat exchange member disposed in the cavity, and the second heat exchange member includes a plurality of third nozzles disposed circumferentially along the inner wall of the cavity, and the third nozzles are disposed toward the material.

8. The waste heat recovery device according to claim 1, characterized in that: The heat exchange component includes a second heat exchange element and a third heat exchange element. The flow path of the material is located between the second heat exchange element and the third heat exchange element. The second heat exchange element is connected to the flow path of the material through a second heat exchange channel. The third heat exchange element is connected to the flow path of the material through a third heat exchange channel.

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