Negative pressure sealed heat accumulating type thermal incinerator

Abstract

The utility model discloses a negative pressure sealed heat accumulating type thermal incinerator, and belongs to the technical field of thermal incinerators. The heat accumulating type thermal incinerator comprises an upper incinerator body and a lower incinerator body which are symmetrically arranged, an upper flange and a lower flange which are fixedly arranged on the sides, close to each other, of the upper incinerator body and the lower incinerator body respectively, and an exhaust port and an air inlet which are fixedly formed in the top of the upper incinerator body and the bottom of the lower incinerator body respectively. The fuel feeding pipe penetrates through the upper furnace body and is fixedly connected with the upper furnace body, the heat storage body is fixedly arranged in the lower furnace body, and the through hole plate is rotationally arranged in the upper furnace body and corresponds to the position below the fuel feeding pipe. According to the heat accumulating type thermal incinerator, through the arrangement of the annular plate, the annular groove, the gear ring, the containing groove, the connecting gear, the transmission assembly and the driving motor, the combustion spray head can rotate to conduct fuel injection on waste gas located at different positions in the incinerator below the through hole plate, full contact combustion is achieved, and then the combustion efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal incinerators, in particular to a negative pressure sealed heat storage type thermal incinerator. Background Art

[0002] With the rapid development of industrialization, the problem of waste gas emissions has become increasingly serious, causing serious impacts on the environment and human health. Therefore, the research and development and application of waste gas treatment technology is particularly important. As a highly efficient waste gas treatment equipment, regenerative thermal incinerators have been widely used in industrial production.

[0003] The Chinese utility model patent with publication number CN220728257U discloses a negative pressure sealed regenerative thermal incinerator. In this technology, by setting a sealing airbag and a sealing ring, the connection between the upper flange assembly and the lower flange assembly can be sealed. When the regenerative thermal incinerator is used for the combustion treatment of exhaust gas, the fuel nozzle for injecting fuel is directly fixed at a certain position in the furnace. This design causes the fuel injection to be concentrated in a certain area in the furnace, and the exhaust gas will quickly spread to every corner when entering the furnace. Therefore, the fixed fuel nozzle is easy to cause uneven fuel distribution, so that the exhaust gas in some areas cannot be fully burned, thereby prolonging the overall combustion time and reducing efficiency.

[0004] Therefore, a negative pressure sealed regenerative thermal incinerator with high combustion efficiency is needed to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a negative pressure sealed regenerative thermal incinerator, aiming to solve the problem that the existing regenerative thermal incinerator proposed in the background technology has a fixed fuel nozzle which easily causes uneven fuel distribution, so that the exhaust gas in some areas cannot be fully burned, thereby prolonging the overall combustion time and reducing the efficiency.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure sealed regenerative thermal incinerator, comprising an upper furnace body and a lower furnace body symmetrically arranged, an upper flange and a lower flange respectively fixedly arranged on the sides of the upper furnace body and the lower furnace body close to each other, an exhaust port and an air inlet respectively fixedly arranged on the top of the upper furnace body and the bottom of the lower furnace body, a fuel feed pipe penetrating through the upper furnace body and fixedly connected to the upper furnace body, a regenerative body fixedly arranged in the lower furnace body, a through-hole plate rotatably arranged in the upper furnace body at a position below the fuel feed pipe, a combustion nozzle rotatably connected to one end of the fuel feed pipe located in the upper furnace body and fixedly connected to the center of the through-hole plate, and the upper flange and the exhaust port are fixedly connected by bolts; the upper furnace body, the lower furnace body, the upper flange, the lower flange, the fuel feed pipe, the regenerative body, the through-hole plate and the combustion nozzle are designed in combination, so that the regenerative thermal incinerator can efficiently treat exhaust gas.

[0009] In order to improve the efficiency of exhaust gas combustion, unlike the existing regenerative thermal incinerator, the regenerative thermal incinerator also includes an annular plate fixedly arranged in the upper furnace body at a position corresponding to the outer side of the through-hole plate, an annular groove provided on the side of the annular plate close to the through-hole plate, a gear ring fixedly sleeved on the through-hole plate and rotatably arranged in the annular groove, a receiving groove provided in the annular plate and located on the side of the gear ring away from the through-hole plate, a connecting gear rotatably arranged in the receiving groove and meshing with the gear ring, a driving motor provided outside the upper furnace body, and a transmission assembly provided on the connecting gear for transmitting the power of the driving motor to the connecting gear to rotate the combustion nozzle on the through-hole plate; the combined design of the annular plate, the annular groove, the gear ring, the receiving groove, the connecting gear, the transmission assembly and the driving motor enables the combustion nozzle connected to the through-hole plate to rotate with the rotation of the through-hole plate, so that the combustion nozzle can rotate to inject fuel to the exhaust gas at different positions in the furnace below the through-hole plate, and fully contact and burn, thereby improving the combustion efficiency.

[0010] Preferably, in order to ensure the sealing of the regenerative thermal incinerator, a sealing ring is fixedly arranged between the upper flange and the lower flange, and an air bag located on the outside of the sealing ring is inserted between the upper flange and the lower flange; the combined design of the sealing ring and the air bag can effectively fill the small gap between the upper flange and the lower flange, preventing exhaust gas or heat from leaking out of these gaps.

[0011] Preferably, in order to further ensure the complete combustion of the exhaust gas, a plurality of baffles are fixedly installed in the through holes on the through-hole plate; the design of the baffles can reduce the speed of the exhaust gas flowing to the exhaust port, so that the exhaust gas stays in the furnace longer, so as to reduce the emission of unburned exhaust gas, improve the combustion efficiency, and make more energy be effectively utilized.

[0012] Preferably, in order to ensure the residence time of the exhaust gas, the plurality of baffles are distributed in a spiral shape; the spirally distributed baffles can guide the gas to form a spiral flow path on the through-hole plate, thereby further increasing the residence time of the gas in the furnace.

[0013] Preferably, in order to improve the safety performance of the regenerative thermal incinerator, a sealing box is fixedly installed at the position of the upper furnace body corresponding to the drive motor, and the drive motor is fixedly installed in the sealing box; the sealing box provides a closed environment for the drive motor, effectively preventing external dust, impurities or corrosive gases from entering the interior of the drive motor, thereby ensuring the normal operation of the drive motor and extending its service life.

[0014] Preferably, in order to facilitate the rotation of the combustion nozzle, the transmission assembly includes a connecting shaft that longitudinally penetrates the connecting gear and is rotatably connected to the accommodating groove, a first bevel gear fixedly mounted on the connecting shaft and located at the top of the connecting gear, a second bevel gear rotatably arranged in the accommodating groove and meshing with the first bevel gear, and a driving shaft that sequentially transversely penetrates the accommodating groove, the upper furnace body and the sealing box and is fixedly connected to the second bevel gear, the driving shaft is rotatably connected to the sealing box and the upper furnace body, and one end of the driving shaft close to the sealing box is fixedly connected to the output shaft of the driving motor; the combined design of the connecting shaft, the first bevel gear, the second bevel gear and the driving shaft can efficiently transmit the power of the driving motor to the connecting gear, thereby driving the rotation of the through-hole plate and the combustion nozzle, thereby reducing energy loss and improving the working efficiency of the entire incinerator.

[0015] (III) Beneficial effects

[0016] The regenerative thermal incinerator is provided with an annular plate, an annular groove, a gear ring, a receiving groove, a connecting gear, a transmission assembly and a driving motor, so that the combustion nozzle connected to the through-hole plate can rotate with the rotation of the through-hole plate, so that the rotating combustion nozzle can inject fuel to the exhaust gas at different positions in the furnace below the through-hole plate, and fully contact and burn, thereby improving the combustion efficiency;

[0017] The regenerative thermal incinerator can reduce the speed of exhaust gas flowing to the exhaust port by setting a baffle, so that the exhaust gas stays in the furnace longer, thereby reducing the emission of unburned exhaust gas, improving combustion efficiency, and making more energy effectively utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a negative pressure sealed regenerative thermal incinerator;

[0019] Figure 2 A cross-sectional view of a negative pressure sealed regenerative thermal incinerator;

[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0022] In the figure:

[0023] 1. Upper furnace body; 11. Upper flange; 12. Exhaust port; 13. Fuel feed pipe;

[0024] 2. Lower furnace body; 21. Lower flange; 22. Air inlet; 23. Heat storage body;

[0025] 3. Sealing ring;

[0026] 4. Airbag;

[0027] 5. Through-hole plate; 51. Combustion nozzle; 52. Baffle;

[0028] 6. annular plate; 61. annular groove; 62. gear ring; 63. containing groove; 64. connecting gear; 65. transmission assembly; 651. connecting shaft; 652. first bevel gear; 653. second bevel gear; 654. driving shaft; 66. driving motor; 67. sealing box; DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1

[0031] The utility model provides a negative pressure sealed heat storage type thermal incinerator, such as Figure 1-Figure 4As shown, the regenerative thermal incinerator comprises an upper furnace body 1 and a lower furnace body 2 which are symmetrically arranged, an upper flange 11 and a lower flange 21 which are respectively fixedly arranged on the sides of the upper furnace body 1 and the lower furnace body 2 which are close to each other, an exhaust port 12 and an air inlet 22 which are respectively fixedly arranged on the top of the upper furnace body 1 and the bottom of the lower furnace body 2, a fuel feed pipe 13 which passes through the upper furnace body 1 and is fixedly connected to the upper furnace body 1, a regenerative body 23 which is fixedly arranged in the lower furnace body 2, a through-hole plate 5 which is rotatably arranged in the upper furnace body 1 at a position below the fuel feed pipe 13, a burner nozzle 51 which is rotatably connected to one end of the fuel feed pipe 13 located in the upper furnace body 1 and is fixedly connected to the center of the through-hole plate 5, the upper flange 11 and the exhaust port 12 and the air inlet 22 which are respectively fixedly arranged on the top of the upper furnace body 1 and the bottom of the lower furnace body 2, 2 is fixedly connected by bolts; the regenerative thermal incinerator also includes an annular plate 6 fixedly arranged in the upper furnace body 1 at a position corresponding to the outer side of the through-hole plate 5, an annular groove 61 provided on the side of the annular plate 6 close to the through-hole plate 5, a gear ring 62 fixedly sleeved on the through-hole plate 5 and rotatably arranged in the annular groove 61, a receiving groove 63 provided in the annular plate 6 and located on the side of the gear ring 62 away from the through-hole plate 5, a connecting gear 64 rotatably arranged in the receiving groove 63 and meshing with the gear ring 62, a driving motor 66 provided outside the upper furnace body 1, and a transmission assembly 65 provided on the connecting gear 64 for transmitting power of the driving motor 66 to the connecting gear 64 to rotate the combustion nozzle 51 on the through-hole plate 5.

[0032] When in use, after fixing the upper flange 11 and the lower flange 21 by bolts, the upper furnace body 1 and the lower furnace body 2 can be assembled. Then, the upper furnace body 1 and the lower furnace body 2 are ensured to be sealed. When the exhaust gas needs to be treated, the drive motor 66 can be started. Under the transmission action of the transmission assembly 65, the connecting gear 64 can rotate. Since the connecting gear 64 is engaged with the gear ring 62 on the through-hole plate 5, the through-hole plate 5 can rotate with the rotation of the connecting gear 64. Since the burner nozzle 51 is fixedly connected to the through-hole plate 5, and the end connected to the fuel feed pipe 13 is rotatable, the burner nozzle 51 It can rotate with the rotation of the through-hole plate 5. Afterwards, when the exhaust gas enters the furnace from the lower flange 21, the exhaust gas will pass through the heat storage body 23 arranged in the lower furnace body 2. Through the heat released by the heat storage body 23, the exhaust gas entering the furnace can be heated in advance when it flows to the combustion nozzle 51 for combustion. When the exhaust gas passes through the heat storage body 23 and is filled in the lower position of the through-hole plate 5, the fuel entering the combustion nozzle 51 from the fuel feed pipe 13 can be dispersed to different positions in the furnace as the combustion nozzle 51 rotates, so as to achieve full combustion of the exhaust gas at different positions in the furnace and increase the combustion speed.

[0033] Among them, in order to improve the safety performance of the heat storage thermal incinerator, a sealing box 67 is fixedly installed at the position of the upper furnace body 1 corresponding to the driving motor 66, and the driving motor 66 is fixedly installed in the sealing box 67; the sealing box 67 provides a closed environment for the driving motor 66, effectively preventing external dust, impurities or corrosive gases from entering the interior of the driving motor 66, thereby ensuring the normal operation of the driving motor 66 and extending its service life.

[0034] Specifically, the transmission assembly 65 includes a connecting shaft 651 that longitudinally penetrates the connecting gear 64 and is rotatably connected to the accommodating groove 63, a first bevel gear 652 that is fixedly sleeved on the connecting shaft 651 and located at the top of the connecting gear 64, a second bevel gear 653 that is rotatably arranged in the accommodating groove 63 and meshes with the first bevel gear 652, and a driving shaft 654 that sequentially transversely penetrates the accommodating groove 63, the upper furnace body 1 and the sealing box 67 and is fixedly connected to the second bevel gear 653. The driving shaft 654 is rotatably connected to the sealing box 67 and the upper furnace body 1, and one end of the driving shaft 654 close to the sealing box 67 is fixedly connected to the output shaft of the driving motor 66; when the driving motor 66 is started, since the driving motor 66 is fixedly connected to the driving shaft 654, the driving shaft 654 can rotate with the driving of the driving motor 66. Since the driving shaft 654 is fixedly connected with the second bevel gear 653, and the second bevel gear 653 is meshed with the first bevel gear 652 on the connecting shaft 651, the connecting shaft 651 can rotate with the rotation of the driving shaft 654, and the connecting shaft 651 is fixedly connected to the connecting gear 64, and the connecting gear 64 is meshed with the gear ring 62. Therefore, the through-hole plate 5 connected to the gear ring 62 can synchronously drive the connected burner nozzle 51 to rotate. With the rotation of the burner nozzle 51, the fuel entering the burner nozzle 51 from the fuel feed pipe 13 can be rotated and dispersed to different positions in the furnace below the through-hole plate 5, so that the exhaust gas at different positions in the furnace can fully contact with the fuel for combustion. After each exhaust gas treatment, the driving motor 66 can be paused, and the rotation of the burner nozzle 51 can be paused.

[0035] In addition, in order to ensure the sealing of the regenerative thermal incinerator, a sealing ring 3 is fixedly arranged between the upper flange 11 and the lower flange 21, and an air bag 4 located on the outside of the sealing ring 3 is inserted between the upper flange 11 and the lower flange 21; the combined design of the sealing ring 3 and the air bag 4 can effectively fill the small gap between the upper flange 11 and the lower flange 21, preventing exhaust gas or heat from leaking out of these gaps.

[0036] Example 2

[0037] Different from Implementation Example 1, in order to further ensure the complete combustion of the exhaust gas, a plurality of baffles 52 are fixedly installed in the through holes on the through-hole plate 5; the plurality of baffles 52 are distributed in a spiral shape; the design of the plurality of spirally distributed baffles 52 can reduce the speed at which the exhaust gas flows to the exhaust port 12, so that the exhaust gas stays in the furnace longer, thereby reducing the emission of unburned exhaust gas, improving the combustion efficiency, and making more energy be effectively utilized.

[0038] 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 technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A negative pressure sealed regenerative thermal incinerator, comprising an upper furnace body (1) and a lower furnace body (2) symmetrically arranged, an upper flange (11) and a lower flange (21) respectively fixedly arranged on the sides of the upper furnace body (1) and the lower furnace body (2) close to each other, an exhaust port (12) and an air inlet (22) respectively fixedly arranged at the top of the upper furnace body (1) and the bottom of the lower furnace body (2), a fuel feed pipe (13) penetrating the upper furnace body (1) and fixedly connected to the upper furnace body (1), a regenerative body (23) fixedly arranged in the lower furnace body (2), a through-hole plate (5) rotatably arranged in the upper furnace body (1) at a position below the fuel feed pipe (13), a burner nozzle (51) rotatably connected to one end of the fuel feed pipe (13) located in the upper furnace body (1) and fixedly connected to the center of the through-hole plate (5), wherein the upper flange (11) and the exhaust port (12) are fixedly connected by bolts; Features: The regenerative thermal incinerator further comprises an annular plate (6) fixedly arranged in the upper furnace body (1) at a position corresponding to the outer side of the through-hole plate (5), an annular groove (61) provided on the side of the annular plate (6) close to the through-hole plate (5), a toothed ring (62) fixedly sleeved on the through-hole plate (5) and rotatably arranged in the annular groove (61), a receiving groove (63) provided in the annular plate (6) and located on the side of the toothed ring (62) away from the through-hole plate (5), a connecting gear (64) rotatably arranged in the receiving groove (63) and meshing with the toothed ring (62), a driving motor (66) provided outside the upper furnace body (1), and a transmission assembly (65) provided on the connecting gear (64) for transmitting power of the driving motor (66) to the connecting gear (64) so ​​as to rotate the combustion nozzle (51) on the through-hole plate (5).

2. A negative pressure sealed regenerative thermal incinerator according to claim 1, characterized in that: A sealing ring (3) is fixedly arranged between the upper flange (11) and the lower flange (21), and an air bag (4) located outside the sealing ring (3) is inserted between the upper flange (11) and the lower flange (21).

3. The negative pressure sealed regenerative thermal incinerator according to claim 1, characterized in that: A plurality of baffles (52) are fixedly mounted in the through holes on the through hole plate (5).

4. A negative pressure sealed regenerative thermal incinerator according to claim 3, characterized in that: The plurality of baffles (52) are distributed in a spiral pattern.

5. The negative pressure sealed regenerative thermal incinerator according to claim 1, characterized in that: A sealing box (67) is fixedly installed on the upper furnace body (1) at a position corresponding to the driving motor (66), and the driving motor (66) is fixedly installed in the sealing box (67).

6. A negative pressure sealed regenerative thermal incinerator according to claim 5, characterized in that: The transmission assembly (65) comprises a connecting shaft (651) which longitudinally passes through the connecting gear (64) and is rotatably connected to the containing groove (63), a first bevel gear (652) which is fixedly sleeved on the connecting shaft (651) and located at the top of the connecting gear (64), a second bevel gear (653) which is rotatably arranged in the containing groove (63) and meshes with the first bevel gear (652), and a driving shaft (654) which transversely passes through the containing groove (63), the upper furnace body (1) and the sealing box (67) in sequence and is fixedly connected to the second bevel gear (653), the driving shaft (654) is rotatably connected to the sealing box (67) and the upper furnace body (1), and one end of the driving shaft (654) close to the sealing box (67) is fixedly connected to the output shaft of the driving motor (66).

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