RTO incinerator tail gas waste heat recovery device

Abstract

The utility model discloses an RTO incinerator tail gas waste heat recovery device, and belongs to the field of RTO incinerators. The RTO incinerator tail gas waste heat recovery device comprises a spraying box, an air inlet fixedly formed in one side of the spraying box, a preheating tank arranged on the side, away from the air inlet, of the spraying box, and an input pipe with the two ends fixedly arranged on the spraying box and the preheating tank correspondingly. The through pipe is fixedly arranged on the side, away from the spraying box, of the preheating tank, the first valve is fixedly installed on the through pipe, and the incinerator is fixedly arranged on the side, away from the preheating tank, of the through pipe. According to the RTO incinerator tail gas waste heat recovery device, rapid and uniform heat transfer during RTO incinerator tail gas waste heat recovery is achieved through the arrangement of the rotating assembly, the problem that heat is not conveniently and reasonably utilized due to the fact that incineration flue gas is located at the end opening of the recovery pipe is solved, and the energy utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the field of RTO incinerators, in particular to a device for recovering waste heat from tail gas of an RTO incinerator. Background Art

[0002] RTO incinerator is a device that decomposes organic matter in waste gas into carbon dioxide, water vapor and other substances through oxidation reaction under high temperature conditions. At the same time, RTO incinerator adopts heat recovery technology, which can effectively utilize the heat energy in waste gas to achieve the purpose of energy saving and emission reduction.

[0003] During the use of the existing RTO incinerator, it was found that when the waste heat of the exhaust gas after combustion is recovered, it needs to pass through the recovery pipe into the preheating tank to achieve reasonable heat recycling. However, when the hot gas enters the preheating tank, the heat will be concentrated in the recovery pipe, making it difficult to quickly and evenly transfer the heat from the inside of the recovery pipe to the inside of the tank, which is not conducive to reasonable heat conversion.

[0004] Therefore, the utility model provides a RTO incinerator tail gas waste heat recovery device to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model provides a device for recovering waste heat from tail gas of an RTO incinerator, aiming to solve the problems in the prior art that, when recovering waste heat from the tail gas after combustion in the existing RTO incinerator, it is found during use that the waste heat needs to be recovered through a recovery pipe into a preheating tank to achieve reasonable heat recycling, but when the hot gas enters the preheating tank, it is difficult to quickly and evenly transfer the heat to the inside of the tank body, which is not conducive to reasonable heat conversion.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat recovery device for tail gas of an RTO incinerator, comprising a spray box, an air inlet fixedly arranged at a position on one side of the spray box, a preheating tank arranged on the side of the spray box away from the air inlet, an input pipe fixedly arranged on the spray box and the preheating tank at both ends, a through pipe fixedly arranged on the side of the preheating tank away from the spray box, a first valve fixedly installed on the through pipe, an incinerator fixedly arranged on the side of the through pipe away from the preheating tank, a recovery pipe fixedly arranged on the top of the incinerator and connected to the preheating tank, and a rotating assembly arranged on the end of the recovery pipe located inside the preheating tank for uniformly transmitting heat; when in use, the tail gas is first introduced into the spray box along the air inlet of the spray box, and part of the impurities in the gas fall to the bottom of the spray box after spraying, and the remaining gas enters the preheating tank for preheating, and the preheated gas enters the interior of the incinerator through the through pipe to incinerate the gas, and the heat generated after incineration enters the preheating tank through the bottom recovery pipe for recycling.

[0009] In order to avoid the difficulty of quickly entering every corner of the preheating tank when heat is input into the preheating tank; the exhaust waste heat recovery device also includes a rotating component arranged inside the recovery pipe near one end of the preheating tank for evenly transferring heat, and the rotating component includes a mounting circular plate fixedly arranged inside the recovery pipe near one end of the preheating tank, a plurality of notches arranged on the mounting circular plate in a circular array, a central gear rotatably arranged on the mounting circular plate, a connecting component rotatably arranged at the mounting circular plate near the port position of the recovery pipe for transmitting power, a motor connected to the output end of the central gear, and a transmission component arranged on the mounting circular plate for transmitting the motor power to the connecting component and driving the heat circulation inside the preheating tank; the heat can be evenly distributed through the rotating component, and through the large bag section set, the motor drives the central gear to rotate, and then drives the connecting component to rotate, so as to facilitate the subsequent heat transmission.

[0010] Preferably, in order to achieve the subsequent driving transmission; the connecting component includes a raised frame rotatably arranged at the mounting circular plate near the recovery pipe port position, an annular groove opened at the recovery pipe port position, a slider slidably connected in the annular groove and fixedly connected to the raised frame, a rotating shaft fixedly arranged on the side of the raised frame away from the mounting circular plate, and a circulation fan sleeved on the end of the rotating shaft away from the raised frame; when the center gear rotates, the raised frame rotates accordingly, driving the slider to rotate in the annular groove, thereby forming an airflow to drive the circulation fan on the raised frame to rotate, thereby achieving the effect of facilitating the circulation of heat at the pipe outlet of the recovery pipe.

[0011] Preferably, in order to realize the reasonable rotation of the raised frame, a plurality of sliders are provided, which are distributed in a ring array inside the annular groove; and then the plurality of sliders are driven to rotate in the annular groove.

[0012] Preferably, in order to achieve rapid heat transfer inside the preheating tank; the transmission assembly includes a semi-toothed disc fixedly arranged on the mounting circular plate near the raised frame, a transmission gear rotatably arranged on the mounting circular plate and meshing with the semi-toothed disc and the central gear, a linkage rod fixedly arranged on the transmission gear away from the mounting circular plate and passing through the raised frame, and a stirring blade fixedly installed on the linkage rod away from the transmission gear. The stirring blade is sleeved on the outside of the recovery pipe; the transmission assembly can be used to transfer power and heat, and the rotation of the central gear drives the transmission gear to rotate, so that it performs circular motion along the meshing transmission of the semi-toothed disc, thereby driving the linkage rod on its surface and the stirring blade fixedly connected to the linkage rod to rotate, so as to achieve the effect of evenly stirring the air inside the preheating tank, facilitating air circulation and heat transfer.

[0013] Preferably, in order to achieve reasonable transmission of the transmission gear; the transmission assembly also includes an arc groove opened on the mounting circular plate, an insertion rod fixedly arranged on the side of the transmission gear close to the mounting circular plate and passing through the arc groove, and a fixing plate fixedly arranged on the side of the insertion rod away from the transmission gear, and the insertion rod is slidably connected in the arc groove; the insertion rod and the fixing plate at the bottom can achieve a limiting effect, and the insertion rod can be used to make a circular motion along the arc groove, so as to facilitate the rotation and drive the subsequent stirring blades to rotate.

[0014] Preferably, in order to reasonably discharge the heat of the gas, the exhaust gas waste heat recovery device also includes an output pipe fixedly arranged on the side of the incinerator away from the preheating tank, a second valve fixedly arranged on the output pipe, a filter box fixedly arranged at the other end of the output pipe, and an exhaust pipe fixedly arranged on the filter box away from the side of the incinerator; the second valve can be opened to drive the gas into the filter box for filtration and then discharged from the exhaust pipe.

[0015] (III) Beneficial effects

[0016] The RTO incinerator tail gas waste heat recovery device realizes rapid and uniform heat transfer during RTO incinerator tail gas waste heat recovery by setting a rotating component, avoids the problem that the incineration flue gas is not convenient for reasonable use of heat at the recovery pipe port, and improves the energy utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a RTO incinerator tail gas waste heat recovery device;

[0018] Figure 2It is a cross-sectional structural schematic diagram of a RTO incinerator tail gas waste heat recovery device;

[0019] Figure 3 It is a schematic diagram of the structure of a rotating component of a RTO incinerator tail gas waste heat recovery device;

[0020] Figure 4 The figure is a schematic diagram of the transmission component structure of an RTO incinerator tail gas waste heat recovery device.

[0021] In the figure:

[0022] 1. Spray box; 11. Air inlet;

[0023] 2. Preheating tank; 21. Through pipe; 211. First valve;

[0024] 3. Input tube;

[0025] 4. Incinerator; 411. Output pipe; 412. Second valve;

[0026] 5. Recovery pipe;

[0027] 6. Filter box; 61. Exhaust pipe;

[0028] 7. Rotating assembly; 71. Mounting circular plate; 711. Notch; 72. Motor; 73. Central gear;

[0029] 74. Connecting assembly; 741. Circular groove; 742. Sliding block; 743. Circulating fan;

[0030] 75, transmission assembly; 751, half toothed disc;

[0031] 752, transmission gear; 7521, arc groove; 7522, plug rod; 7523, fixing plate;

[0032] 753, linkage rod; 754, stirring fan blades. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model provides a RTO incinerator tail gas waste heat recovery device, such as Figure 1-4As shown, the RTO incinerator tail gas waste heat recovery device includes a spray box 1, an air inlet 11 fixedly arranged at a position on one side of the spray box 1, a preheating tank 2 arranged on the side of the spray box 1 away from the air inlet 11, an input pipe 3 fixedly arranged on the spray box 1 and the preheating tank 2 at both ends, a through pipe 21 fixedly arranged on the side of the preheating tank 2 away from the spray box 1, a first valve 211 fixedly installed on the through pipe 21, an incinerator 4 fixedly arranged on the side of the through pipe 21 away from the preheating tank 2, a recovery pipe 5 fixedly arranged on the top of the incinerator 4 and connected to the preheating tank 2, and a rotating component 7 arranged at one end of the recovery pipe 5 located inside the preheating tank 2 for uniformly transmitting heat, and the tail gas waste heat recovery The collecting device also includes a rotating component 7 arranged inside the end of the recovery pipe 5 close to the preheating tank 2 for uniformly transmitting heat. The rotating component 7 includes a mounting circular plate 71 fixedly arranged inside the end of the recovery pipe 5 close to the preheating tank 2, a plurality of notches 711 arranged on the mounting circular plate 71 and distributed in a ring array, a central gear 73 rotatably arranged on the mounting circular plate 71, a connecting component 74 rotatably arranged at the mounting circular plate 71 close to the port position of the recovery pipe 5 for transmitting power, a motor 72 connected to the output end of the central gear 73, and a transmission component 75 arranged on the mounting circular plate 71 for transmitting the power of the motor 72 to the connecting component 74 and driving the heat circulation inside the preheating tank 2.

[0035] When in use, the exhaust gas is first introduced into the spray box 1 along the air inlet 11 of the spray box 1. After spraying, some impurities in the gas fall to the bottom of the spray box 1, and the remaining gas enters the preheating tank 2 for preheating. The preheated gas enters the interior of the incinerator 4 through the through pipe 21 to incinerate the gas. The heat generated after incineration enters the preheating tank 2 through the bottom recovery pipe 5 for recycling. At this time, in order to avoid the difficulty of heat input into the preheating tank 2 when entering all corners of the preheating tank 2 quickly, the heat can be evenly distributed through the rotating component 7, and through the large bag segment set 72, the motor drives the central gear 73 to rotate, and then drives the connecting component 74 to rotate, so as to facilitate the transmission of heat in the later stage.

[0036] Specifically, the connecting component 74 includes a raised frame rotatably set at the mounting circular plate 71 near the port position of the recovery pipe 5, an annular groove 741 opened at the port position of the recovery pipe 5, a slider 742 slidably connected in the annular groove 741 and fixedly connected to the raised frame, a rotating shaft fixedly set on the side of the raised frame away from the mounting circular plate 71, and a circulation fan 743 sleeved on the end of the rotating shaft away from the raised frame. There are multiple sliders 742 distributed in an annular array inside the annular groove 741; when the center gear 73 rotates, the raised frame rotates accordingly, driving the slider 742 to rotate in the annular groove 741, thereby forming an airflow to drive the circulation fan 743 on the raised frame to rotate, thereby achieving the effect of facilitating the circulation of heat at the pipe outlet of the recovery pipe 5.

[0037] Furthermore, the transmission assembly 75 includes a semi-toothed disc 751 fixedly arranged on the side of the mounting circular plate 71 close to the raised frame, a transmission gear 752 rotatably arranged on the mounting circular plate 71 and meshing with the semi-toothed disc 751 and the central gear 73, a linkage rod 753 fixedly arranged on the side of the transmission gear 752 away from the mounting circular plate 71 and passing through the raised frame, and a stirring blade 754 fixedly arranged on the side of the linkage rod 753 away from the transmission gear 752, the stirring blade 754 is sleeved on the outside of the recovery pipe 5, and the transmission assembly 75 also includes an arc groove 7521 opened on the mounting circular plate 71, a transmission gear 752 fixedly arranged on the side of the transmission gear 752 close to the mounting circular plate 71 and The insertion rod 7522 passes through the arc groove 7521 and the fixing plate 7523 is fixedly arranged on the side of the insertion rod 7522 away from the transmission gear 752. The insertion rod 7522 is slidably connected in the arc groove 7521. In order to realize the rapid propagation of heat inside the preheating tank 2, the transmission assembly 75 can be used to realize the transmission of power and heat. The rotation of the central gear 73 drives the transmission gear 752 to rotate, so that it meshes and transmits along the half toothed disc 751 to perform circular motion, thereby driving the linkage rod 753 on its surface and the stirring blade 754 fixedly connected to the linkage rod 753 to rotate, thereby achieving the effect of evenly stirring the air inside the preheating tank 2, facilitating air circulation and heat transfer.

[0038] Furthermore, the exhaust gas waste heat recovery device also includes an output pipe 411 fixedly arranged on the side of the incinerator 4 away from the preheating tank 2, a second valve 412 fixedly arranged on the output pipe 411, a filter box 6 fixedly arranged at the other end of the output pipe 411, and an exhaust pipe 61 fixedly arranged on the side of the filter box 6 away from the incinerator 4; in order to achieve the reasonable discharge of gas heat, the second valve 412 can be opened to drive the gas into the filter box 6 for filtration and then discharged from the exhaust pipe 61.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field of technology within the technical scope disclosed by the present invention can make equivalent substitutions or changes based on the technical scheme and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste heat recovery device for tail gas of an RTO incinerator, comprising a spray box (1), an air inlet (11) fixedly arranged at a position on one side of the spray box (1), a preheating tank (2) arranged on a side of the spray box (1) away from the air inlet (11), an input pipe (3) with two ends respectively fixedly arranged on the spray box (1) and the preheating tank (2), a through pipe (21) fixedly arranged on a side of the preheating tank (2) away from the spray box (1), a first valve (211) fixedly mounted on the through pipe (21), an incinerator (4) fixedly arranged on a side of the through pipe (21) away from the preheating tank (2), and a recovery pipe (5) fixedly arranged on the top of the incinerator (4) and connected to the preheating tank (2); and a rotating assembly (7) disposed at one end of the recovery pipe (5) located inside the preheating tank (2) for uniformly transmitting heat; Features: The exhaust gas waste heat recovery device also includes a rotating component (7) arranged inside one end of the recovery pipe (5) close to the preheating tank (2) for uniformly transmitting heat; The rotating assembly (7) comprises a mounting circular plate (71) fixedly arranged inside one end of the recovery pipe (5) close to the preheating tank (2), a plurality of notches (711) arranged on the mounting circular plate (71) and distributed in a ring array, a central gear (73) rotatably arranged on the mounting circular plate (71), a connecting assembly (74) rotatably arranged at a position close to the port of the recovery pipe (5) for transmitting power, a motor (72) connected to the output end of the central gear (73), and a transmission assembly (75) arranged on the mounting circular plate (71) for transmitting power of the motor (72) to the connecting assembly (74) and driving heat circulation inside the preheating tank (2).

2. The RTO incinerator tail gas waste heat recovery device according to claim 1 is characterized in that: The connection assembly (74) comprises a raised frame rotatably arranged at a position of the mounting circular plate (71) close to the port of the recovery pipe (5), an annular groove (741) provided at the port of the recovery pipe (5), a sliding block (742) slidably connected in the annular groove (741) and fixedly connected to the raised frame, a rotating shaft fixedly arranged at a side of the raised frame away from the mounting circular plate (71), and a circulating fan (743) sleeved on an end of the rotating shaft away from the raised frame.

3. The RTO incinerator tail gas waste heat recovery device according to claim 2 is characterized in that: The sliding blocks (742) are provided in plurality and distributed in an annular array inside the annular groove (741).

4. The RTO incinerator tail gas waste heat recovery device according to claim 2 is characterized in that: The transmission assembly (75) comprises a semi-toothed disc (751) fixedly arranged on a side of the mounting circular plate (71) close to the raised frame, a transmission gear (752) rotatably arranged on the mounting circular plate (71) and meshing with the semi-toothed disc (751) and the central gear (73), a linkage rod (753) fixedly arranged on a side of the transmission gear (752) away from the mounting circular plate (71) and penetrating the raised frame, and a stirring blade (754) fixedly arranged on a side of the linkage rod (753) away from the transmission gear (752), wherein the stirring blade (754) is sleeved on the outside of the recovery pipe (5).

5. The RTO incinerator tail gas waste heat recovery device according to claim 4 is characterized in that: The transmission assembly (75) further comprises an arc-shaped groove (7521) provided on the mounting circular plate (71), an insertion rod (7522) fixedly arranged on a side of the transmission gear (752) close to the mounting circular plate (71) and penetrating through the arc-shaped groove (7521), and a fixing plate (7523) fixedly arranged on a side of the insertion rod (7522) away from the transmission gear (752), wherein the insertion rod (7522) is slidably connected in the arc-shaped groove (7521).

6. The RTO incinerator tail gas waste heat recovery device according to claim 1 is characterized in that: The exhaust gas waste heat recovery device also includes an output pipe (411) fixedly arranged on a side of the incinerator (4) away from the preheating tank (2), a second valve (412) fixedly arranged on the output pipe (411), a filter box (6) fixedly arranged at the other end of the output pipe (411), and an exhaust pipe (61) fixedly arranged on a side of the filter box (6) away from the incinerator (4).

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