Heat accumulating type combustion device for industrial waste gas treatment

By introducing motor drive with gear and rod structures into the thermally regenerative combustion device, the exhaust gas and combustion-assisted air are fully mixed and ash cleaning are cleaned, the problems of uneven mixing and ash accumulation are solved, and the combustion efficiency and treatment quality are improved.

CN223178850UActive Publication Date: 2025-08-01ZHONGKE TONGHUA (SHAANXI) ENVIRONMENTAL ENG CO LTD
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Patent Information

Application Number
CN202422399269.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-08-01
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

The waste gas mixing in the existing thermally regenerative combustion devices is uneven, resulting in excessive or low concentration in local areas, affecting combustion efficiency, and easily generating ash accumulation, affecting the quality of waste gas treatment.

Method used

The complex gear and rod structure is adopted to drive the rotation of the air guide plate and the scraper through the motor to achieve full mixing of exhaust gas and combustion-assisted air, and regularly clean up ash to prevent dust accumulation.

Benefits of technology

The exhaust gas and combustion-assisted air are fully mixed, local overheating or supercooling are avoided, the cleanliness of the device is ensured, and combustion efficiency and exhaust gas treatment quality are improved.

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Abstract

The utility model relates to the technical field of heat accumulating type combustion devices, in particular to a heat accumulating type combustion device for industrial waste gas treatment, which comprises a first combustion chamber, a second combustion chamber is arranged on one side of the first combustion chamber, a first motor is fixedly connected onto the first combustion chamber, and the output end of the first motor is fixedly connected with a first straight gear. And one end of the first straight gear is connected with a second straight gear in a meshed mode, a fixing shaft is fixedly connected into the first combustion chamber, and a first rotating rod is fixedly connected to the lower portion of the second straight gear. According to the device, by starting a first motor, the output end of the first motor drives a first straight gear and a second straight gear to rotate in a meshed mode, so that a first rotating rod, a first bevel gear, a third bevel gear and a second rotating rod are driven to rotate on a fixing shaft, three sets of first air deflectors and three sets of second air deflectors are driven to rotate in a first combustion chamber, and vortex or turbulent flow is generated in the device; and the waste gas and the combustion-supporting air are more fully mixed, so that the phenomenon of local overheating or supercooling is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of regenerative combustion devices, in particular to a regenerative combustion device for industrial waste gas treatment. Background Technique

[0002] A regenerative thermal oxidizer (RTO, usually also called regenerative combustion) is an efficient organic waste gas treatment device that combines high-temperature oxidation combustion with regenerative technology. This device effectively reduces heat loss and energy consumption, makes full use of the heat of combustion, and greatly reduces the operating cost and the temperature of the discharged gas.

[0003] At present, when the regenerative combustion device is in use, there are still the following defects: the mixing of waste gas in the combustion chamber is not uniform enough, resulting in too high or too low waste gas concentration in local areas, affecting the combustion efficiency, and particulate matter will be generated during combustion, which is easy to cause ash accumulation, and excessive accumulation affects the quality of waste gas treatment. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a regenerative combustion device for industrial waste gas treatment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a regenerative combustion device for industrial waste gas treatment, including a first combustion chamber, a second combustion chamber is arranged on one side of the first combustion chamber, a first motor is fixedly connected to the first combustion chamber, a first spur gear is fixedly connected to the output end of the first motor, a second spur gear is meshed and connected to one end of the first spur gear, a fixed shaft is fixedly connected in the first combustion chamber, a first rotating rod is fixedly connected below the second spur gear, a first bevel gear is fixedly connected below the first rotating rod, a second bevel gear is meshed and connected below the first bevel gear, a third bevel gear is meshed and connected below the second bevel gear, a second rotating rod is fixedly connected below the third bevel gear, a first air guide plate is fixedly connected below the second rotating rod, and a second air guide plate is fixedly connected below the first rotating rod.

[0006] As a further description of the above technical solution:

[0007] A second motor is fixedly connected to one side of the first combustion chamber, a rotating disk is fixedly connected to the output end of the second motor, a rotating column is eccentrically fixedly connected to one side of the rotating disk, a swinging rod is rotatably connected in the first combustion chamber, a sliding groove is arranged on the swinging rod, a connecting rod is rotatably connected below the swinging rod, a sliding rod is rotatably connected to the bottom end of the connecting rod, and a scraper is fixedly connected to both sides of the sliding rod.

[0008] As a further description of the above technical solution:

[0009] A motor three is fixedly connected below the combustion chamber one. The output end of the motor three is fixedly connected with a spur gear three. One side of the spur gear three is meshed with a rack one, and the other end of the spur gear three is meshed with a rack two. One end of the rack two is fixedly connected with a baffle plate. A blanking groove is arranged in the combustion chamber one.

[0010] As a further description of the above technical solution:

[0011] A reversing valve is fixedly connected to one side of the combustion chamber one. A regenerator is fixedly connected to one side of the combustion chamber one. A chimney is fixedly connected to one side of the reversing valve. Support legs are fixedly connected below the combustion chamber one.

[0012] As a further description of the above technical solution:

[0013] The spur gear one and the spur gear two are rotatably connected in the combustion chamber one. The spur gear two, the rotating rod one, the bevel gear one, the bevel gear three, and the rotating rod two are rotatably connected to a fixed shaft. The bevel gear two is rotatably connected to one side of the fixed shaft.

[0014] As a further description of the above technical solution:

[0015] The rotating disc is rotatably connected in the combustion chamber one. The rotating column is slidably connected in the chute. There are two groups of sliding rods which are respectively fixedly connected to both ends of the scraper. The two groups of sliding rods are slidably connected in the combustion chamber one.

[0016] As a further description of the above technical solution:

[0017] There are two groups of baffle plates. One group of baffle plates is fixedly connected to one end of the rack one. The rack one, the rack two, and the baffle plates are slidably connected below the combustion chamber one. There are two groups of reversing valves and regenerators respectively. One group of reversing valves and regenerators is fixedly connected to one side of the combustion chamber two.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, by starting the motor one, the output end of the motor one drives the spur gear one and the spur gear two to mesh and rotate, thereby driving the rotating rod one, the bevel gear one, the bevel gear three, and the rotating rod two to rotate on the fixed shaft, thereby driving the three groups of air guide plates one and the air guide plates two to rotate in the combustion chamber one, so that eddy currents or turbulences are generated inside the device, and the waste gas and the combustion-supporting air are more fully mixed, avoiding the occurrence of local overheating or overcooling phenomena.

[0020] 2. In the present utility model, by turning on the second motor, the output end of the second motor drives the rotating disk to rotate in the first combustion chamber, thereby driving the sliding groove and the connecting rod to swing reciprocally in the first combustion chamber, so that the two sliding rods slide in the first combustion chamber while driving the two scraping plates to scrape the bottom of the device, pushing the accumulated dust particles in the device into the two material dropping grooves, and then falling from the material dropping grooves to the ground, thus ensuring the cleanliness of the device and preventing excessive dust accumulation from affecting the waste gas treatment quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structural schematic diagram of a regenerative combustion device for industrial waste gas treatment proposed by the present utility model Figure 1 ;

[0022] Figure 2 The structural schematic diagram of a regenerative combustion device for industrial waste gas treatment proposed by the present utility model Figure 2 ;

[0023] Figure 3 The structural schematic diagram of a regenerative combustion device for industrial waste gas treatment proposed by the present utility model Figure 3 ;

[0024] Figure 4 The partial structural sectional view of a regenerative combustion device for industrial waste gas treatment proposed by the present utility model;

[0025] Figure 5 is Figure 4 the enlarged view of part A in

[0026] Legend:

[0027] 1. First combustion chamber; 2. Second combustion chamber; 3. First motor; 4. First spur gear; 5. Second spur gear; 6. Fixed shaft; 7. First rotating rod; 8. First bevel gear; 9. Second bevel gear; 10. Third bevel gear; 11. Second rotating rod; 12. First air deflector; 13. Second air deflector; 14. Second motor; 15. Rotating disk; 16. Rotating column; 17. Swing rod; 18. Sliding groove; 19. Connecting rod; 20. Sliding rod; 21. Scraping plate; 22. Third motor; 23. Third spur gear; 24. First rack; 25. Second rack; 26. Baffle; 27. Material dropping groove; 28. Commutating valve; 29. Regenerator; 30. Chimney; 31. Support leg. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Referring to Figures 1 - 5 , an embodiment provided by the present utility model: a regenerative combustion device for industrial waste gas treatment, including a first combustion chamber 1, characterized in that: a second combustion chamber 2 is provided on one side of the first combustion chamber 1, a first motor 3 is fixedly connected to the first combustion chamber 1, an output end of the first motor 3 is fixedly connected to a first spur gear 4, one end of the first spur gear 4 is meshed and connected to a second spur gear 5, a fixed shaft 6 is fixedly connected inside the first combustion chamber 1, a first rotating rod 7 is fixedly connected below the second spur gear 5, a first bevel gear 8 is fixedly connected below the first rotating rod 7, a second bevel gear 9 is meshed and connected below the first bevel gear 8, a third bevel gear 10 is meshed and connected below the second bevel gear 9, a second rotating rod 11 is fixedly connected below the third bevel gear 10, a first air guiding plate 12 is fixedly connected below the second rotating rod 11, a second air guiding plate 13 is fixedly connected below the first rotating rod 7. By starting the first motor 3, the output end of the first motor 3 drives the first spur gear 4 and the second spur gear 5 to mesh and rotate, thereby driving the first rotating rod 7, the first bevel gear 8, the third bevel gear 10, and the second rotating rod 11 to rotate on the fixed shaft 6, thereby driving the three groups of first air guiding plates 12 and the second air guiding plates 13 to rotate inside the first combustion chamber 1, generating eddy currents or turbulence inside the device, enabling the waste gas and the combustion-supporting air to be more fully mixed, and avoiding the occurrence of local overheating or overcooling phenomena.

[0030] Among them, a second motor 14 is fixedly connected to one side of the first combustion chamber 1. The output end of the second motor 14 is fixedly connected to a rotating disk 15. An eccentric rotating column 16 is fixedly connected to one side of the rotating disk 15. A swing rod 17 is rotatably connected inside the first combustion chamber 1. A chute 18 is provided on the swing rod 17. A connecting rod 19 is rotatably connected below the swing rod 17. The bottom end of the connecting rod 19 is rotatably connected to a sliding rod 20. Scrapers 21 are fixedly connected to both sides of the sliding rod 20. A third motor 22 is fixedly connected below the first combustion chamber 1. The output end of the third motor 22 is fixedly connected to a third spur gear 23. A first rack 24 is meshed and connected to one side of the third spur gear 23. A second rack 25 is meshed and connected to the other end of the third spur gear 23. A baffle 26 is fixedly connected to one end of the second rack 25. A material dropping groove 27 is provided inside the first combustion chamber 1. A reversing valve 28 is fixedly connected to one side of the first combustion chamber 1. A heat storage body 29 is fixedly connected to one side of the first combustion chamber 1. A chimney 30 is fixedly connected to one side of the reversing valve 28. Support legs 31 are fixedly connected below the first combustion chamber 1. The first spur gear 4 and the second spur gear 5 are rotatably connected inside the first combustion chamber 1. The second spur gear 5, the first rotating rod 7, the first bevel gear 8, the third bevel gear 10, and the second rotating rod 11 are rotatably connected to a fixed shaft 6. The second bevel gear 9 is rotatably connected to one side of the fixed shaft 6. The rotating disk 15 is rotatably connected inside the first combustion chamber 1. The rotating column 16 is slidably connected inside the chute 18. There are two groups of sliding rods 20, which are respectively fixedly connected to both ends of the scraper 21. The two groups of sliding rods 20 are slidably connected inside the first combustion chamber 1. There are two groups of baffles 26. One group of baffles 26 is fixedly connected to one end of the first rack 24. The first rack 24, the second rack 25, and the baffle 26 are slidably connected below the first combustion chamber 1. There are two groups of reversing valves 28 and heat storage bodies 29 respectively. One group of reversing valves 28 and heat storage bodies 29 are fixedly connected to one side of the second combustion chamber 2. By turning on the second motor 14, the output end of the second motor 14 drives the rotating disk 15 to rotate inside the first combustion chamber 1, thereby driving the chute 18 and the connecting rod 19 to swing reciprocally inside the first combustion chamber 1, causing the two groups of sliding rods 20 to slide inside the first combustion chamber 1 while driving the two groups of scrapers 21 to scrape the bottom of the device, pushing the accumulated dust particles inside the device into the two material dropping grooves 27, and then falling from the material dropping grooves 27 to the ground, thus ensuring the cleanliness inside the device and preventing excessive dust accumulation from affecting the waste gas treatment quality.

[0031] Working principle: Before the furnace body processes the waste gas, the combustion chamber and the regenerative bed are preheated first. After the preheating is completed, the waste gas source is connected to the equipment, and the regenerator 29 is turned on. The waste gas is preheated through the regenerator 29, and the temperature is quickly raised to above 75°C. When the waste gas containing organic pollutants is switched into the first regenerative chamber by the reversing valve 28, it is heated when passing through the first regenerative chamber. Subsequently, the first motor 3 is turned on, and the output end of the first motor 3 drives the spur gear 4 and the spur gear 5 to rotate meshingly in the first combustion chamber 1. Since the fixed shaft 6 is fixedly connected in the first combustion chamber 1, when the spur gear 4 and the spur gear 5 rotate, the rotating rod 7, the bevel gear 8, the bevel gear 10, and the rotating rod 11 rotate on the fixed shaft 6. At this time, the bevel gear 9 is rotatably connected to one side of the fixed shaft 6, thereby driving the three groups of first air guiding plates 12 and the air guiding plate 13 to rotate in the first combustion chamber 1, generating eddy currents or turbulences inside the device, making the waste gas and the combustion-supporting air mix more fully, avoiding local overheating or overcooling phenomena. In a very short time, the low-temperature waste gas is heated to a temperature close to the furnace temperature. Subsequently, after the high-temperature waste gas enters the furnace, it draws the gas inside the surrounding furnace to form a thin oxygen-deficient high-temperature gas stream with an oxygen content much lower than 21% of the scraper, causing it to burn and decompose into carbon dioxide and water. At the same time, the flue gas after combustion in the furnace passes through the second regenerative chamber and is discharged into the atmosphere. When the high-temperature flue gas in the furnace passes through the regenerator 29, the sensible heat is stored in the regenerator 29 in the second combustion chamber 2, and then the low-temperature flue gas is discharged through the reversing valve 28. The first regenerative chamber and the second regenerative combustion chamber 2 alternate in the heat absorption and heat release processes. The flow directions of the waste gas and the tail gas are controlled by the switching valve system to ensure that the waste gas always enters from the regenerative chamber that has been heated by the purified gas, and the purified gas is guided to the unheated regenerative chamber for heat recovery. After use, the third motor 22 is turned on. While the output end of the third motor 22 drives the spur gear 23 to rotate below the first combustion chamber 1, it drives the rack 24 and the rack 25 to move in opposite directions, thereby driving the two groups of baffle plates 26 to slide below the first combustion chamber 1, moving them away from the lower part of the blanking chute 27. Subsequently, the second motor 14 is turned on, and the output end of the second motor 14 drives the rotating disc 15 to rotate in the first combustion chamber 1, thereby driving the sliding chute 18 and the connecting rod 19 to swing reciprocally in the first combustion chamber 1. While the two groups of sliding rods 20 slide in the first combustion chamber 1, they drive the two groups of scrapers 21 to scrape the bottom of the device, pushing the accumulated dust particles in the device into the two groups of blanking chutes 27, and then falling from the blanking chute 27 to the ground, thus ensuring the cleanliness of the device and preventing excessive dust accumulation from affecting the waste gas treatment quality.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A regenerative combustion device for industrial waste gas treatment, comprising a first combustion chamber (1), characterized in that: On one side of the combustion chamber one (1), there is a combustion chamber two (2). A motor one (3) is fixedly connected to the combustion chamber one (1). The output end of the motor one (3) is fixedly connected to a spur gear one (4). One end of the spur gear one (4) is meshed with a spur gear two (5). A fixed shaft (6) is fixedly connected inside the combustion chamber one (1). Below the spur gear two (5), there is a rotating rod one (7) fixedly connected. Below the rotating rod one (7), there is a bevel gear one (8) fixedly connected. Below the bevel gear one (8), there is a bevel gear two (9) meshed. Below the bevel gear two (9), there is a bevel gear three (10) meshed. Below the bevel gear three (10), there is a rotating rod two (11) fixedly connected. Below the rotating rod two (11), there is a wind guide plate one (12) fixedly connected. Below the rotating rod one (7), there is a wind guide plate two (13) fixedly connected.

2. The regenerative combustion device for industrial waste gas treatment according to claim 1, characterized in that: On one side of the combustion chamber one (1), there is a motor two (14) fixedly connected. The output end of the motor two (14) is fixedly connected to a rotating disk (15). On one side of the rotating disk (15), there is a rotating column (16) fixedly connected eccentrically. Inside the combustion chamber one (1), there is a swinging rod (17) rotatably connected. There is a chute (18) on the swinging rod (17). Below the swinging rod (17), there is a connecting rod (19) rotatably connected. The bottom end of the connecting rod (19) is rotatably connected to a sliding rod (20). On both sides of the sliding rod (20), there are scraping plates (21) fixedly connected.

3. The regenerative combustion device for industrial waste gas treatment according to claim 2, wherein: Below the combustion chamber one (1), there is a motor three (22) fixedly connected. The output end of the motor three (22) is fixedly connected to a spur gear three (23). On one side of the spur gear three (23), there is a rack one (24) meshed. On the other end of the spur gear three (23), there is a rack two (25) meshed. One end of the rack two (25) is fixedly connected to a shielding plate (26). Inside the combustion chamber one (1), there is a material dropping groove (27).

4. The regenerative combustion device for industrial waste gas treatment according to claim 3, characterized in that: On one side of the combustion chamber one (1), there is a reversing valve (28) fixedly connected. On one side of the combustion chamber one (1), there is a regenerator (29) fixedly connected. On one side of the reversing valve (28), there is a chimney (30) fixedly connected. Below the combustion chamber one (1), there are support legs (31) fixedly connected.

5. The regenerative combustion device for industrial waste gas treatment according to claim 4, characterized in that: The spur gear one (4) and the spur gear two (5) are rotatably connected inside the combustion chamber one (1). The spur gear two (5), the rotating rod one (7), the bevel gear one (8), the bevel gear three (10), and the rotating rod two (11) are rotatably connected to the fixed shaft (6). The bevel gear two (9) is rotatably connected to one side of the fixed shaft (6).

6. The regenerative combustion device for industrial waste gas treatment according to claim 5, characterized in that: The rotating disk (15) is rotatably connected inside the combustion chamber one (1). The rotating column (16) is slidably connected inside the chute (18). There are two groups of the sliding rods (20) and they are respectively fixedly connected to both ends of the scraping plates (21). The two groups of the sliding rods (20) are slidably connected inside the combustion chamber one (1).

7. The regenerative combustion device for industrial waste gas treatment according to claim 6, characterized in that: There are two sets of the baffle plates (26). One set of the baffle plates (26) is fixedly connected to one end of the first rack (24). The first rack (24), the second rack (25), and the baffle plates (26) are slidably connected below the first combustion chamber (1). There are two sets of the reversing valves (28) and the regenerators (29) respectively. One set of the reversing valves (28) and the regenerators (29) are fixedly connected to one side of the second combustion chamber (2).