Flue gas heat recycling device

Abstract

The invention is suitable for the technical field of energy recovery, and provides a flue gas heat recycling device which comprises a water storage type treatment box used for recycling flue gas heat, a metal coil pipe used for guiding and conveying flue gas is arranged in the treatment box, and the flue gas inlet end and the flue gas outlet end of the metal coil pipe both extend out of the treatment box; the lifting opening and closing type box cover is used for covering an opening in the top of the treatment box, and the box cover is arranged at the top of the treatment box; and the assembling frame is used for assembling the metal coil pipe and is fixedly mounted at the bottom of the box cover. According to the flue gas heat recycling device provided by the scheme, through the design of the water storage type treatment box and the metal coil pipe, efficient recycling of heat energy in flue gas is achieved, direct loss of the heat energy is avoided, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of energy recovery, and in particular relates to a flue gas heat recovery and utilization device. Background Art

[0002] In the current industrial production process, kilns, boilers and other equipment play a vital role, providing the necessary heat energy for various processes. However, these equipment will generate a large amount of flue gas during operation, which not only contains harmful substances but also carries abundant heat energy. Due to the limitations of traditional flue gas treatment technology, this part of heat energy is often not effectively recovered and is directly discharged into the atmosphere, which not only causes a huge waste of energy, but also aggravates environmental thermal pollution.

[0003] However, traditional flue gas treatment technology mainly focuses on flue gas purification and compliance with emission standards, while the recovery and utilization of heat energy in flue gas are relatively neglected, which results in a large amount of heat energy resources being lost in vain and is unable to provide effective heat energy support for industrial production. Summary of the invention

[0004] The present invention provides a flue gas heat recovery and utilization device, aiming to solve the problems of low flue gas heat energy recovery and utilization rate and serious energy waste in the current industrial production process.

[0005] The present invention is implemented as follows: a flue gas heat recovery and utilization device comprises: a water storage type treatment box for recovering flue gas heat for utilization, wherein a metal coil for guiding flue gas is arranged in the treatment box, and a smoke inlet end and a smoke outlet end of the metal coil both extend out of the treatment box; a lifting and opening type box cover for covering the top opening of the treatment box, wherein the box cover is arranged on the top of the treatment box; an assembly frame for assembling the metal coil, wherein the assembly frame is fixedly mounted on the bottom of the box cover; a smoke extractor for extracting flue gas, wherein the smoke extractor is fixedly mounted on the box cover, wherein the smoke extractor is fixed on the top of the box cover, and the smoke inlet end of the smoke extractor is fixedly connected to the smoke outlet end of the metal coil; a filtering mechanism for filtering smoke dust, wherein the filtering mechanism is arranged on the box cover; a water stirring mechanism for stirring water, wherein the water stirring mechanism is arranged on the treatment box; a cleaning mechanism for cleaning impurities on the inner wall of the treatment box, wherein the cleaning mechanism is arranged in the treatment box.

[0006] Preferably, the filtering mechanism includes: a filter box fixed on the top of the box cover; a detachable sealing cover arranged on the top of the filter box; a telescopic tube fixedly connected to the sealing cover, the smoke inlet end of the telescopic tube being fixedly connected to the smoke outlet end of the metal coil; a detachable filter bag arranged in the filter box for filtering smoke impurities; and an exhaust pipe fixedly connected to the filter box, the exhaust pipe being used to discharge the filtered smoke.

[0007] Preferably, the water stirring mechanism includes: a sealed shaft rotatably installed at the bottom of the treatment box, the top end of the shaft extending into the treatment box; a stirring wheel fixed to the top end of the shaft for stirring the water flow; a motor fixed to the bottom of the treatment box for driving the shaft to rotate; a coupling fixed on the output shaft of the motor, the top end of the coupling being fixedly connected to the bottom end of the shaft.

[0008] Preferably, the cleaning mechanism includes: a mounting bracket fixed to the bottom of the processing box; a plurality of reciprocating screw rods symmetrically mounted on the mounting bracket; a driving block sleeved on the reciprocating screw rod; a detachable cleaning brush provided on one end of the driving block for cleaning the inner wall of the processing box; a guide rod slidably mounted on the driving block, the bottom end of the guide rod being fixedly connected to the mounting bracket; a screw provided on the driving block for limiting the cleaning brush, the bottom end thread of the screw passing through the cleaning brush.

[0009] Preferably, a driving mechanism for driving the reciprocating screw to rotate is provided on the mounting frame, and the driving mechanism includes: a plurality of transmission rods rotatably mounted on the mounting frame; first bevel teeth respectively fixed on one end of the rotating shaft and meshing with the bottom end of the reciprocating screw; second bevel teeth fixed on the shaft; third bevel teeth fixed on the other end of the rotating shaft, and the third bevel teeth mesh with the second bevel teeth.

[0010] Preferably, the processing box is provided with a lifting mechanism for regulating the opening and closing of the box cover, and the lifting mechanism includes: an assembly block fixed on the processing box; an electric hydraulic rod fixed on the assembly block; a plug-in block fixed on the top end of the output rod of the electric hydraulic rod; a detachable sleeve block sleeved on the plug-in block; a connecting block fixed on the top end of the sleeve block, one end of the connecting block is fixedly connected to the box cover; a bolt provided on the sleeve block for limiting the connecting block, and the bolt thread passes through the connecting block.

[0011] Preferably, a drain pipe for taking water is fixedly installed at the bottom of the processing box, and a water valve is provided on the drain pipe.

[0012] Preferably, one side of the treatment box is fixedly connected to a water adding pipe for adding water therein, and a funnel is provided on the water inlet end of the water adding pipe.

[0013] Preferably, a hook for limiting position is fixedly mounted on the sealing cover, and a buckle matched with the hook is provided on one side of the processing box.

[0014] Preferably, a tube hole matching the smoke inlet and smoke outlet of the metal coil is provided on the top of the box cover, and a tube clamp for fixing the metal coil is provided on the assembly frame.

[0015] Compared with the related art, the flue gas heat recovery and utilization device provided by the present invention has the following beneficial effects:

[0016] Through the design of water storage treatment box and metal coil, efficient recovery of heat energy in flue gas is achieved, direct loss of heat energy is avoided, and energy utilization efficiency is improved; secondly, the design of lifting and opening box cover and assembly frame makes the use of the device more convenient, and also facilitates the cleaning and maintenance of the inside of the treatment box; thirdly, the introduction of smoke extractor enhances the efficiency of flue gas extraction and further improves the effect of heat recovery; in addition, the setting of the filtering mechanism effectively removes harmful substances in the flue gas, ensures that the discharged flue gas meets environmental protection standards and protects the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the main structure of a flue gas heat recovery and utilization device provided by the present invention;

[0018] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0019] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0020] Figure 4 for Figure 2 An enlarged schematic diagram of the structure of part B shown in FIG.

[0021] Figure 5 for Figure 2 An enlarged schematic diagram of the structure of part C shown in FIG.

[0022] Figure 6 It is a schematic diagram of the structure of the box cover and the assembly frame in the present invention.

[0023] 1. Processing box; 2. Metal coil; 3. Box cover; 4. Assembly frame; 5. Smoke extractor; 6. Filter box; 7. Sealing cover; 8. Telescopic tube; 9. Filter bag; 10. Exhaust pipe; 11. Assembly block; 12. Electric hydraulic rod; 13. Plug-in block; 14. Sleeve block; 15. Connecting block; 16. Bolt; 17. Drain pipe; 18. Water valve; 19. Water filling pipe; 20. Funnel; 21. Shaft; 22. Agitator wheel; 23. Motor; 24. Coupling; 25. Mounting frame; 26. Reciprocating screw; 27. Drive block; 28. Cleaning brush; 29. ​​Guide rod; 30. Screw; 31. Transmission rod; 32. First bevel gear; 33. Second bevel gear; 34. Third bevel gear. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] The embodiment of the present invention provides a flue gas heat recovery and utilization device, such as Figure 1-6 As shown, the flue gas heat recovery and utilization device includes: a water storage type treatment box 1 for recovering flue gas heat for utilization, wherein a metal coil 2 for guiding flue gas is arranged in the treatment box 1, and the smoke inlet end and the smoke outlet end of the metal coil 2 both extend out of the treatment box 1; a lifting and opening type box cover 3 for covering the top opening of the treatment box 1, wherein the box cover 3 is arranged on the top of the treatment box 1; an assembly frame 4 for assembling the metal coil 2, wherein the assembly frame 4 is fixedly mounted on the bottom of the box cover 3; a smoke extractor 5 for extracting flue gas, wherein the smoke extractor 5 is fixedly mounted on the box cover 3, wherein the smoke extractor 5 is fixedly connected to the smoke outlet end of the metal coil 2; a filtering mechanism for filtering smoke dust, wherein the filtering mechanism is arranged on the box cover 3; a water stirring mechanism for stirring water, wherein the water stirring mechanism is arranged on the treatment box 1; a cleaning mechanism for cleaning impurities on the inner wall of the treatment box 1, wherein the cleaning mechanism is arranged in the treatment box 1.

[0027] It should be noted that traditional flue gas treatment technology has indeed achieved remarkable results in flue gas purification and emission standard control, effectively reducing the pollution of the environment caused by industrial production. However, this treatment technology is incapable of utilizing the heat energy in the flue gas and has obvious shortcomings. Traditional flue gas treatment systems often focus more on meeting environmental protection standards, such as reducing the content of harmful substances such as particulate matter, sulfur dioxide, nitrogen oxides, etc. in flue gas to ensure that emissions meet standards. Although this treatment method with environmental protection as the main goal has played a positive role in environmental protection, it ignores the large amount of heat energy carried in the flue gas. This heat energy can be recovered and converted into reusable heat energy through appropriate technical means, thereby providing effective heat energy support for industrial production. Due to the limitations of traditional technology, this heat energy is often not effectively recovered, but is directly discharged into the atmosphere, which not only leads to a huge waste of energy, but also aggravates environmental thermal pollution. Especially in today's increasingly scarce energy, this waste is particularly regrettable. At the same time, with the continuous expansion of industrial production scale, flue gas emissions are also increasing, and the loss of thermal energy resources is becoming more and more serious; therefore, how to efficiently recover and utilize the heat energy in flue gas has become an urgent problem to be solved in the industrial field. This is not only related to the effective utilization of energy and the control of production costs, but also directly related to the sustainable development of industrial production and environmental protection. In view of this problem, it is particularly important and urgent to develop a new type of flue gas heat recovery and utilization device;

[0028] In this embodiment, the water storage type treatment box 1 serves as the main part of heat recovery, and the metal coil 2 arranged inside is used to guide the flue gas. When the flue gas passes through the metal coil 2, the heat energy it carries is transferred to the water in the treatment box 1, thereby realizing heat recovery. This design method makes full use of the heat energy in the flue gas and avoids the direct loss of heat energy. Secondly, the design of the lifting and opening box cover 3 not only facilitates the opening and closing of the treatment box 1, but also can cover the top opening of the treatment box 1 when the device is not in use, thereby preventing the entry of dust and other debris and keeping the treatment box 1 clean. At the same time, the assembly frame 4 at the bottom of the box cover 3 is used to fix the metal coil 2, thereby ensuring the stability of the metal coil 2 and the accuracy of the position, thereby further improving the efficiency of heat recovery. ; Furthermore, the introduction of the smoke extractor 5 makes the extraction of smoke more efficient and stable. The smoke inlet end of the smoke extractor 5 is fixedly connected to the smoke outlet end of the metal coil 2, and can extract the smoke treated by the metal coil 2, avoiding the retention and secondary pollution of the smoke in the treatment box 1. At the same time, the strong extraction effect of the smoke extractor 5 also helps to increase the speed of the smoke flowing through the metal coil 2, further enhancing the effect of heat recovery; in addition, the setting of the filtering mechanism is a key step in purifying the smoke. Through the filtering mechanism, particulate matter and other harmful substances in the smoke can be effectively removed to ensure that the emitted smoke meets environmental protection standards, which not only helps to reduce pollution to the environment, but also can extend the service life of the device and reduce maintenance costs.

[0029] In a further preferred embodiment of the present invention, the filtering mechanism includes: a filter box 6 fixed on the top of the box cover 3; a detachable sealing cover 7 arranged on the top of the filter box 6; a telescopic tube 8 fixedly connected to the sealing cover 7, the smoke inlet end of the telescopic tube 8 is fixedly connected to the smoke outlet end of the metal coil 2; a detachable filter bag 9 arranged in the filter box 6 for filtering smoke impurities; an exhaust pipe 10 fixedly connected to the filter box 6, and the exhaust pipe 10 is used to discharge the filtered smoke.

[0030] In this embodiment, the filtering mechanism includes a filter box 6 fixed on the top of the box cover 3. This design makes the filtering process relatively independent from the heat recovery process of the treatment box 1, and does not interfere with each other, ensuring the high efficiency of heat recovery and the thoroughness of filtering; a detachable sealing cover 7 is set on the top of the filter box 6, which not only facilitates the replacement and maintenance of the filter bag 9, but also ensures the sealing of the filter box 6 during the filtering process, prevents the leakage of smoke, and ensures the filtering effect; the design of the telescopic tube 8 makes the connection between the filtering mechanism and the metal coil 2 more flexible and convenient, and the smoke inlet end of the telescopic tube 8 is fixedly connected to the smoke outlet end of the metal coil 2, ensuring that the smoke can smoothly enter the filter box 6 for filtering; a detachable filter bag 9 is set in the filter box 6 for filtering impurities in the smoke. The detachable design of the filter bag 9 makes its replacement very simple and improves the maintenance efficiency of the device. At the same time, the high-efficiency filtering performance of the filter bag 9 ensures that the discharged smoke is clean and free of impurities, meeting environmental protection standards; finally, the exhaust pipe 10 is fixedly connected to the filter box 6 for discharging the filtered smoke. The design of the exhaust pipe 10 enables the filtered smoke to be smoothly discharged from the device, thus avoiding the retention of smoke in the device and secondary pollution.

[0031] In a further preferred embodiment of the present invention, the water stirring mechanism includes: a sealed shaft 21 rotatably installed at the bottom of the treatment box 1, the top end of the shaft 21 extends into the treatment box 1; a stirring wheel 22 fixed to the top end of the shaft 21 for stirring the water flow; a motor 23 fixed to the bottom of the treatment box 1 for driving the shaft 21 to rotate; a coupling 24 fixed on the output shaft of the motor 23, the top end of the coupling 24 is fixedly connected to the bottom end of the shaft 21.

[0032] In this embodiment, the design of the sealed shaft 21 ensures that the water stirring mechanism will not leak during operation, and ensures that the water in the treatment box 1 will not leak out, thereby maintaining the normal operation and safety of the device. The top end of the shaft 21 extends into the treatment box 1, so that the stirring wheel 22 can directly act on the water in the treatment box 1 to achieve the stirring of the water; the setting of the stirring wheel 22 is the core part of the water stirring mechanism. When the motor 23 is started, the shaft 21 is driven to rotate through the coupling 24, and then the stirring wheel 22 is driven to rotate; the rotation of the stirring wheel 22 stirs the water in the treatment box 1, making the water temperature distribution more uniform, and improving the efficiency of heat recovery. At the same time, stirring the water flow also helps to increase the contact area between water and the metal coil 2, further promoting the transfer of heat energy; the motor 23 serves as the power source of the water stirring mechanism, and its stability and reliability are crucial to the water stirring effect; in this embodiment, the motor 23 is fixed to the bottom of the treatment box 1 to ensure the stability of its operation; at the same time, through the connection between the coupling 24 and the shaft 21, the power transmission between the motor 23 and the stirring wheel 22 is realized, ensuring the efficient operation of the water stirring mechanism.

[0033] In a further preferred embodiment of the present invention, the cleaning mechanism includes: a mounting bracket 25 fixed to the bottom of the processing box 1; a plurality of reciprocating screw rods 26 symmetrically mounted on the mounting bracket 25; a driving block 27 sleeved on the reciprocating screw rods 26; a detachable cleaning brush 28 provided on one end of the driving block 27 for cleaning the inner wall of the processing box 1; a guide rod 29 slidably mounted on the driving block 27, the bottom end of the guide rod 29 being fixedly connected to the mounting bracket 25; a screw 30 provided on the driving block 27 for limiting the cleaning brush 28, the bottom end of the screw 30 having a thread passing through the cleaning brush 28.

[0034] In this embodiment, the mounting frame 25 serves as a supporting component of the cleaning mechanism, ensuring the stability and reliability of the entire cleaning mechanism. The mounting frame 25 is fixed to the bottom of the processing box 1, which facilitates the installation and maintenance of the cleaning mechanism; the design of the reciprocating screw 26 enables the driving block 27 to perform reciprocating motion. By symmetrically rotating a number of reciprocating screws 26 mounted on the mounting frame 25, the driving block 27 can reciprocate along the inner wall of the processing box 1 under the drive of the screws, thereby achieving comprehensive cleaning of the inner wall of the processing box 1; the driving block 27 serves as a carrier of the cleaning brush 28, and realizes movement by being sleeved on the reciprocating screw 26; a detachable cleaning brush 28 is provided at one end of the driving block 27. This design enables the cleaning brush 28 to be easily replaced and cleaned, thereby extending the service life of the cleaning mechanism and improving the cleaning effect; the setting of the guide rod 29 ensures the stability of the driving block 27 during the reciprocating motion; the guide rod 29 is slidably mounted on the driving block 27, and its bottom end is fixedly connected to the mounting frame 25, which plays a guiding and supporting role for the driving block 27, ensuring that the cleaning brush 28 can smoothly clean along the inner wall of the processing box 1; the setting of the screw 30 is used to limit the cleaning brush 28. The bottom thread of the screw 30 passes through the cleaning brush 28. By adjusting the tightness of the screw 30, the cleaning brush 28 can be fixed and adjusted to ensure that the cleaning brush 28 can fit tightly against the inner wall of the processing box 1, thereby improving the cleaning effect.

[0035] In a further preferred embodiment of the present invention, a driving mechanism for driving the reciprocating screw rod 26 to rotate is provided on the mounting frame 25, and the driving mechanism includes: a plurality of transmission rods 31 rotatably mounted on the mounting frame 25; first bevel teeth 32 respectively fixed to one end of the rotating shaft 31 and meshing with each other on the bottom end of the reciprocating screw rod 26; second bevel teeth 33 fixed on the shaft rod 21; and third bevel teeth 34 fixed on the other end of the rotating shaft 31, and the third bevel teeth 34 mesh with the second bevel teeth 33.

[0036] In this embodiment, the transmission rod 31, as the core component of the driving mechanism, is rotatably mounted on the mounting frame 25, providing a stable support for the transmission of the driving force. The setting of the transmission rod 31 enables the driving force to be efficiently transmitted to the reciprocating screw 26, thereby driving the cleaning brush 28 to perform cleaning work; the setting of the first bevel gear 32 realizes the power transmission between the transmission rod 31 and the reciprocating screw 26. The first bevel gear 32 is respectively fixed to one end of the transmission rod 31 and the bottom end of the reciprocating screw 26, and through mutual meshing, the rotational motion of the transmission rod 31 is converted into the linear reciprocating motion of the reciprocating screw 26, thereby driving the cleaning brush 28 to clean along the inner wall of the treatment box 1; the second bevel gear 33 is fixed on the shaft 21, and meshes with the third bevel gear 34 fixed on the other end of the transmission rod 31; this design cleverly combines the rotational motion of the water stirring mechanism with the reciprocating motion of the cleaning mechanism, realizing the linkage between the two. When the motor 23 drives the shaft 21 to rotate, the second bevel gear 33 and the third bevel gear 34 mesh together to transmit the rotational power to the transmission rod 31, thereby driving the cleaning brush 28 to perform cleaning work; the design of this driving mechanism not only simplifies the structure of the device, reduces the manufacturing cost, but also improves the reliability and stability of the device. By utilizing the rotational motion of the water stirring mechanism to drive the cleaning mechanism, the energy is effectively utilized and transmitted, and the working efficiency of the entire device is improved.

[0037] In a further preferred embodiment of the present invention, the processing box 1 is provided with a lifting mechanism for regulating the opening and closing of the box cover 3, and the lifting mechanism includes: an assembly block 11 fixed on the processing box 1; an electric hydraulic rod 12 fixed on the assembly block 11; a plug-in block 13 fixed on the top of the output rod of the electric hydraulic rod 12; a detachable sleeve block 14 sleeved on the plug-in block 13; a connecting block 15 fixed on the top of the sleeve block 14, one end of the connecting block 15 is fixedly connected to the box cover 3; a bolt 16 provided on the sleeve block 14 for limiting the connecting block 15, and the bolt 16 threadedly passes through the connecting block 15.

[0038] In this embodiment, the lifting mechanism includes an assembly block 11 fixed on the processing box 1. The assembly block 11 serves as a fixed base to ensure the stability and reliability of the lifting mechanism; fixed on the assembly block 11 is an electric hydraulic rod 12, which serves as a power source for the lifting mechanism and can provide a stable and adjustable lifting force. A plug-in block 13 is fixed on the top of the output rod of the electric hydraulic rod 12, and the plug-in block 13 is firmly connected to the output rod, ensuring the stability of the lifting process; a detachable sleeve block 14 is sleeved on the plug-in block 13, and this design makes the replacement and maintenance of the sleeve block 14 simple and convenient. A connecting block 15 is fixed on the top of the sleeve block 14, and one end of the connecting block 15 is fixedly connected to the box cover 3, so that when the electric hydraulic rod 12 is working, it can drive the box cover 3 to perform lifting and lowering movements through the connecting block 15; in order to increase the stability of the connection between the connecting block 15 and the sleeve block 14, a bolt 16 is provided. The bolt 16 threadedly penetrates the connecting block 15, and serves to limit the connecting block 15, preventing it from shaking or falling off during the lifting process; through the design of this lifting mechanism, the opening and closing of the box cover 3 can be easily controlled, thereby realizing flexible regulation of the heat recovery process inside the treatment box 1. When heat recovery is required, the box cover 3 is driven by the electric hydraulic rod 12 to lower and cover the top opening of the treatment box 1 to ensure efficient heat recovery; when the treatment box 1 needs to be cleaned or maintained, the box cover 3 rises to facilitate the operator to carry out related work.

[0039] In a further preferred embodiment of the present invention, a drainage pipe 17 for taking water is fixedly installed at the bottom of the processing box 1, and a water valve 18 is provided on the drainage pipe 17.

[0040] In this embodiment, the fixed installation of the drain pipe 17 ensures its stability and reliability, so that after the heat recovery is completed inside the treatment box 1, the hot water can be smoothly discharged through the drain pipe 17. The setting of the water valve 18 is the key to accurately control the flow of the drain pipe 17. By adjusting the opening and closing degree of the water valve 18, the discharge speed and amount of hot water can be conveniently controlled to meet different usage requirements.

[0041] In a further preferred embodiment of the present invention, one side of the treatment box 1 is fixedly connected to a water adding pipe 19 for adding water therein, and a funnel 20 is provided on the water inlet end of the water adding pipe 19 .

[0042] In this embodiment, the fixed connection of the water filling pipe 19 ensures that the connection between it and the treatment box 1 is stable and reliable, so that water can flow smoothly into the treatment box 1 through the water filling pipe 19. The setting of the funnel 20 further simplifies the water adding steps. The user only needs to aim the funnel 20 at the water source, such as a bucket or a water pipe, and then pour water into the funnel 20. The water will automatically flow into the water filling pipe 19 and finally enter the treatment box 1.

[0043] In a further preferred embodiment of the present invention, a hook for limiting position is fixedly mounted on the sealing cover 7 , and a buckle matched with the hook is provided on one side of the processing box 1 .

[0044] In this embodiment, the hook is fixed on the sealing cover 7. When the sealing cover 7 is closed, the hook can accurately cooperate with the buckle on one side of the processing box 1. This cooperation between the hook and the buckle ensures the stability and sealing of the sealing cover 7 in the closed state, effectively prevents the leakage of smoke during the filtration process, and ensures the filtration effect; in addition, the coordinated use of the hook and the buckle also makes the opening and closing operations of the sealing cover 7 simple and convenient. The user only needs to gently lift or press the sealing cover 7 to achieve the separation or cooperation of the hook and the buckle, without the need to use additional tools or complicated operating steps.

[0045] In a further preferred embodiment of the present invention, the top of the box cover 3 is provided with pipe holes matched with the smoke inlet and smoke outlet ends of the metal coil 2, and the assembly frame 4 is provided with pipe clamps for fixing the metal coil 2.

[0046] In this embodiment, the tube hole opened on the top of the box cover 3 is adapted to the smoke inlet and smoke outlet ends of the metal coil 2, which means that the metal coil 2 can accurately pass through the tube hole. The design of the tube clamp takes into account the shape and size of the metal coil 2 and can fit tightly on its surface to provide stable support and fixation; this not only ensures the stability of the metal coil 2 during operation, but also helps to extend its service life.

[0047] In summary, the flue gas heat recovery and utilization device provided by the technical solution realizes the efficient recovery and utilization of heat energy in the flue gas through the coordinated use of components such as the water storage treatment box 1, the metal coil 2, the lifting and opening box cover 3, the assembly frame 4, the smoke extractor 5 and the filtering mechanism, while ensuring that the discharged flue gas meets environmental protection standards. This not only helps to reduce energy consumption and production costs, but also reduces environmental pollution and promotes the green and sustainable development of industrial production; therefore, the device has broad application prospects and important promotion value in industrial production.

[0048] Compared with the relevant technology, the design of the water storage treatment box 1 and the metal coil 2 realizes the efficient recovery of heat energy in the flue gas, avoids the direct loss of heat energy, and improves the energy utilization efficiency; secondly, the design of the lifting and opening box cover 3 and the assembly frame 4 makes the use of the device more convenient, and also facilitates the cleaning and maintenance of the inside of the treatment box 1; furthermore, the introduction of the smoke exhaust fan 5 enhances the efficiency of smoke extraction and further improves the effect of heat recovery; in addition, the setting of the filtering mechanism effectively removes harmful substances in the flue gas, ensures that the discharged flue gas meets environmental protection standards, and protects the environment.

[0049] It is worth noting that the circuits, electronic components and modules involved in the present invention are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0050] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A flue gas heat recovery and utilization device, characterized in that: include: A water storage treatment box for recovering flue gas heat for reuse, wherein a metal coil for guiding flue gas is arranged in the treatment box, and the smoke inlet and outlet ends of the metal coil both extend outside the treatment box; A lifting and opening box cover for covering the top opening of the processing box, wherein the box cover is arranged on the top of the processing box; An assembly rack for assembling the metal coil, wherein the assembly rack is fixedly mounted on the bottom of the box cover; A smoke extractor for extracting smoke, the smoke extractor is fixedly mounted on the box cover, the smoke extractor is fixed on the top of the box cover, and the smoke inlet end of the smoke extractor is fixedly connected to the smoke outlet end of the metal coil; A filtering mechanism for filtering smoke and dust, wherein the filtering mechanism is arranged on the box cover; A water stirring mechanism for stirring water, wherein the water stirring mechanism is arranged on the treatment tank; A cleaning mechanism for cleaning impurities from the inner wall of the processing box, wherein the cleaning mechanism is arranged in the processing box.

2. The flue gas heat recovery and utilization device according to claim 1, characterized in that: The filtering mechanism comprises: A filter box fixed on the top of the box cover; A detachable sealing cover disposed on the top of the filter box; A telescopic tube fixedly connected to the sealing cover, wherein the smoke inlet end of the telescopic tube is fixedly connected to the smoke outlet end of the metal coil; A detachable filter bag disposed in the filter box for filtering smoke impurities; An exhaust pipe fixedly connected to the filter box is used to discharge the filtered smoke.

3. The flue gas heat recovery and utilization device according to claim 1, characterized in that: The water stirring mechanism comprises: Rotating a sealed shaft mounted on the bottom of the processing box, wherein the top end of the shaft extends into the processing box; A stirring wheel fixed to the top of the shaft for stirring the water flow; A motor fixed to the bottom of the processing box for driving the shaft to rotate; A coupling is fixed on the output shaft of the motor, and the top end of the coupling is fixedly connected to the bottom end of the shaft.

4. The flue gas heat recovery and utilization device according to claim 3, characterized in that: The cleaning mechanism comprises: A mounting frame fixed to the bottom of the processing box; A plurality of reciprocating screw rods symmetrically rotatedly mounted on the mounting frame; A driving block sleeved on the reciprocating screw rod; A detachable cleaning brush disposed on one end of the driving block for cleaning the inner wall of the processing box; A guide rod slidably mounted on the driving block, wherein the bottom end of the guide rod is fixedly connected to the mounting frame; A screw is arranged on the driving block for limiting the position of the cleaning brush, and a bottom end thread of the screw passes through the cleaning brush.

5. The flue gas heat recovery and utilization device according to claim 4, characterized in that: The mounting frame is provided with a driving mechanism for driving the reciprocating screw to rotate, and the driving mechanism includes: Rotating a plurality of transmission rods mounted on the mounting frame; First bevel teeth respectively fixed to one end of the rotating shaft and meshing with each other on the bottom end of the reciprocating screw rod; A second bevel gear fixed to the shaft; A third bevel gear is fixed on the other end of the rotating shaft, and the third bevel gear is meshed with the second bevel gear.

6. The flue gas heat recovery and utilization device according to claim 1, characterized in that: The processing box is provided with a lifting mechanism for regulating the opening and closing of the box cover, and the lifting mechanism includes: An assembly block fixed to the processing box; an electric hydraulic rod fixed to the assembly block; A plug-in block fixed to the top end of the output rod of the electric hydraulic rod; A detachable sleeve block sleeved on the plug-in block; A connecting block fixed on the top of the sleeve block, one end of which is fixedly connected to the box cover; A bolt is arranged on the sleeve block for limiting the connection block, and the bolt thread passes through the connection block.

7. The flue gas heat recovery and utilization device according to claim 1, characterized in that: A drainage pipe for taking water is fixedly installed at the bottom of the processing box, and a water valve is arranged on the drainage pipe.

8. The flue gas heat recovery and utilization device according to claim 1, characterized in that: One side of the treatment box is fixedly connected with a water adding pipe for adding water therein, and a funnel is arranged on the water inlet end of the water adding pipe.

9. The flue gas heat recovery and utilization device according to claim 2, characterized in that: A hook for limiting position is fixedly mounted on the sealing cover, and a buckle matched with the hook is arranged on one side of the processing box.

10. The flue gas heat recovery and utilization device according to claim 1, characterized in that: The top of the box cover is provided with pipe holes matched with the smoke inlet end and the smoke outlet end of the metal coil, and the assembly frame is provided with pipe clamps for fixing the metal coil.

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