Direct type thermal oxidation furnace

Abstract

The utility model relates to a direct type thermal oxidation furnace which comprises a mixing fan head and a combustion chamber, a heat insulation barrel is erected in the mixing fan head through an adjustable support, the heat insulation barrel is provided with a heat insulation layer, one end of the mixing fan head is fixedly connected with a combustor, the other end of the mixing fan head is fixedly connected with the combustion chamber, and the combustion chamber is fixedly connected with the mixing fan head. One end of the combustor is communicated with the heat insulation barrel, a chimney is arranged at one end of the combustion chamber, a crawling ladder is arranged on the outer wall of the chimney, and a mixed air interlayer is formed between the inner wall of the mixed air fan head and the outer wall of the heat insulation barrel. The direct type thermal oxidation furnace has the advantages of shortening the reaction time, reducing the occupied area, reducing the energy consumption, being convenient to maintain and replace and the like.

Description

Technical Field

[0001] This utility model relates to the field of direct thermal oxidizer technology, and in particular to a high-efficiency, maintainable direct thermal oxidizer. Background Technology

[0002] Currently, incinerator equipment is a high-temperature, high-pressure reaction device widely used in high-temperature incineration, environmental protection, organic synthesis, polymer material preparation, catalytic reactions, and other fields. With the advancement of industrial technology and the increasing demands for environmental protection, the requirements for DFTO (Direct Fired Thermal Oxidizer) incinerators in terms of efficiency, intelligence, and environmental performance are growing.

[0003] Currently, the DFTOs used in the market have the following problems:

[0004] High energy consumption: Direct thermal oxidizers require heating the waste gas to a high temperature (usually 700-1000℃) to ensure complete combustion of organic matter, which consumes a large amount of fuel, resulting in high operating costs. This energy consumption problem is particularly pronounced for low-concentration organic waste gas, as a large amount of additional heat is needed.

[0005] Large equipment size: To ensure sufficient residence time of the exhaust gas within the furnace for complete combustion of organic matter, direct thermal oxidizers typically require a large volume and floor space. This can be a limiting factor for spaces with limited capacity.

[0006] High maintenance costs: The high-temperature environment and combustion process cause significant material wear and tear on the equipment, resulting in high maintenance costs for direct thermal oxidizers. Regular inspection and replacement of components such as furnace insulation, burners, and catalysts are necessary to ensure normal operation. Furthermore, the need for specialized maintenance personnel and equipment further increases the difficulty and cost of maintenance.

[0007] To address these issues, we developed a direct thermal oxidation furnace. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the prior art by providing a direct thermal oxidation furnace, which has the advantages of shortening reaction time, reducing floor space, reducing energy consumption, and facilitating maintenance and replacement.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a direct thermal oxidizer includes a mixing air head, an insulating cylinder is mounted on the bottom of the mixing air head via a bracket, a burner is fixedly connected to one end of the mixing air head, and a combustion chamber is fixedly connected to the other end of the mixing air head, one end of the burner is connected to the insulating cylinder, a chimney is provided at the end of the combustion chamber away from the mixing air head, a ladder is provided on the outer wall of the chimney, and a mixing air partition is formed between the inner wall of the mixing air head and the outer wall of the insulating cylinder.

[0010] Preferably, the top of the mixing head is provided with an exhaust gas inlet, a fresh air inlet and a first sensor in sequence, and the bottom is provided with a first support frame, and the bottom of the combustion chamber is provided with a second support frame.

[0011] Preferably, the bracket includes a support leg and a support plate mounted on the top of the support leg, and an auxiliary reinforcing plate is fixedly connected between the support leg and the support plate.

[0012] Preferably, the outer wall of the support leg is provided with an adjustment plate, a corner plate is fixedly connected to the outer wall of the adjustment plate, and the bottom end is adjustablely connected to the mixing fan head.

[0013] Preferably, a first sealing cover is provided at one end of the mixing head, and a first connecting end is provided at the other end, wherein the first sealing cover is fixedly connected to the burner.

[0014] Preferably, a fixing plate is provided at the middle position of the burner, a first interface is provided at one end of the burner, and a burner head is provided at the other end, and the first sealing cover is fixedly connected to the fixing plate.

[0015] Preferably, a second connecting end is provided at one end of the combustion chamber, and a second sealing cover is sealed to the other end, wherein the second connecting end is sealed to the first connecting end.

[0016] Preferably, the combustion chamber is provided with an observation window and a plurality of second sensors at the top.

[0017] Preferably, the chimney is provided with a lifting lug at the top and a chimney cover at the top.

[0018] Preferably, the chimney is provided with legs, and the legs are fixedly connected to the fixing components and the channel steel in sequence from bottom to top. The two ends of the ladder are fixedly connected to the fixing components and the channel steel, respectively.

[0019] Preferably, the exhaust gas inlet and the fresh air inlet are respectively connected to a fan, and the inner diameter of the exhaust gas inlet is larger than the inner diameter of the fresh air inlet.

[0020] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] 1. Compared with the traditional direct combustion incinerator (DFTO), the mixing baffle of this DFTO ensures full mixing of exhaust gas and fresh air, which is conducive to full reaction in the combustion chamber, saves the reaction time of the equipment, and optimizes the structure and footprint of the equipment.

[0022] 2. Adjustable support legs ensure the distance between the DFTO's insulated cylinder and the rear combustion chamber, guaranteeing the relative velocity and flow rate of the mixed gas, optimizing the reaction, and controlling energy consumption.

[0023] 3. This DFTO direct-fired incinerator features a detachable mixing head for easy maintenance. The internal insulation cylinder is adjustable and removable, and can be easily disassembled and replaced with the appropriate insulation cylinder after a period of use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the direct thermal oxidation furnace described in this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the bracket described in this utility model.

[0026] Figure 3 This is a schematic diagram of the burner described in this utility model. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figures 1 to 3In a direct thermal oxidation furnace, there is a mixing air head 20. A heat insulation cylinder 30 is mounted on the bottom of the mixing air head 20 via a bracket 40. A heat insulation layer 35 is provided on the outer wall of the heat insulation cylinder 30. The heat insulation layer 35 facilitates heat storage inside the heat insulation cylinder 30 and prevents the accelerated aging of the internal components of the mixing air layer due to high temperature. A burner 10 is fixedly connected to one end of a mixing head 20, and a combustion chamber 50 is fixedly connected to the other end. One end of the burner 10 is connected to an insulation cylinder 30. A chimney 60 is provided at the end of the combustion chamber 50 away from the mixing head 20, and a ladder 70 is provided on the outer wall of the chimney 60. A mixing air partition 21 is formed between the inner wall of the mixing head 20 and the outer wall of the insulation cylinder 30. An exhaust gas inlet 23, a fresh air inlet 24, and a first sensor 28 are sequentially provided at the top of the mixing head 20, and a first support frame 29 is provided at the bottom. The first sensor 28 detects the flow rate and volume of the mixed exhaust gas. A second support frame 59 is provided at the bottom of the combustion chamber 50. The exhaust gas inlet 23 and the fresh air inlet 24 are respectively connected to a fan, and the inner diameter of the exhaust gas inlet 23 is larger than the inner diameter of the fresh air inlet 24. This increases the exhaust gas treatment capacity while facilitating the mixing of exhaust gas and fresh air.

[0029] A fixing plate 11 is provided at the middle position of the burner 10. A first interface 12 is provided at one end of the burner 10, and a burner head 13 is provided at the other end. The first interface 12 is connected to the fuel supply end, and the first sealing cover 22 is fixedly connected to the fixing plate 11. The burner head 13 burns and stores heat inside the heat insulation cylinder 30.

[0030] The mixing head 20 has a first sealing cover 22 at one end and a first connecting end 26 at the other end. The first sealing cover 22 is fixedly connected to the burner 10. The first sealing cover 22 is removable for easy maintenance and replacement.

[0031] The support frame 40 includes legs 41 and a support plate 42 mounted on the top of the legs 41. A reinforcing plate 44 is fixedly connected between the legs 41 and the support plate 42. An adjusting plate 43 is provided on the outer wall of the legs 41. A corner plate 45 is fixedly connected to the outer wall of the adjusting plate 43, and its bottom end is adjustablely connected to the mixing head 20. The adjusting plate 43 can be horizontally adjusted via a slide rail (not shown in the figure) on the inner wall of the mixing head 20, and then fixed.

[0032] A second connecting end 52 is provided at one end of the combustion chamber 50, and a second sealing cover 53 is sealed to the other end. The second connecting end 52 is sealed to the first connecting end 26. The combustion chamber 50 is provided with an observation window 51, and multiple second sensors 55 are provided at the top. The second sensors 55 detect the temperature of the combustion chamber. The structure with detachable ends facilitates maintenance.

[0033] The chimney 60 is equipped with a lifting lug 61 at its top and a chimney cover 62 at its top. The lifting lug 61 facilitates the installation of the chimney. The chimney 60 is equipped with support legs 65, which are fixedly connected to fixing members 66 and channel steel 67 from bottom to top. The ladder 70 is fixedly connected to the fixing members 66 and channel steel 67 at both ends, respectively, facilitating the inspection of the chimney.

[0034] During operation, the flame generated by the burner 10 burns inside the insulated cylinder 30, which is mounted via support legs 40. A mixing air baffle 21 is formed between the mixing head 20 and the insulated cylinder 30, allowing the exhaust gas and fresh air to come into full contact within the mixing air baffle. Simultaneously, the horizontal distance of the support legs can be adjusted to ensure the flow rate and volume of the mixed air entering the combustion chamber. The heat generated by the burner and the adjusted volume of mixed exhaust gas react fully within the combustion chamber. After reaching the oxidation temperature, the combusted exhaust gas is discharged through the chimney.

[0035] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A direct thermal oxidation furnace, characterized in that: The device includes a mixing head (20), with a heat insulation cylinder (30) mounted on the bottom of the mixing head (20) via a bracket (40). One end of the mixing head (20) is fixedly connected to a burner (10), and the other end is fixedly connected to a combustion chamber (50). One end of the burner (10) is connected to the heat insulation cylinder (30). A chimney (60) is provided at the end of the combustion chamber (50) away from the mixing head (20). A ladder (70) is provided on the outer wall of the chimney (60). A mixing air partition (21) is formed between the inner wall of the mixing head (20) and the outer wall of the heat insulation cylinder (30). A waste gas inlet (23), a fresh air inlet (24), and a first sensor (28) are sequentially provided at the top of the mixing head (20), and a first support frame (29) is provided at the bottom. A second support frame (59) is provided at the bottom of the combustion chamber (50).

2. The direct thermal oxidizer according to claim 1, characterized in that, The bracket (40) includes a support leg (41) and a support plate (42) mounted on the top of the support leg (41), and an auxiliary reinforcing plate (44) is fixedly connected between the support leg (41) and the support plate (42).

3. The direct thermal oxidizer according to claim 2, characterized in that, An adjustment plate (43) is provided on the outer wall of the support leg (41). An angle plate (45) is fixedly connected to the outer wall of the adjustment plate (43), and the bottom end is adjustablely connected to the mixing fan head (20).

4. The direct thermal oxidizer according to claim 1, characterized in that, The mixing head (20) is provided with a first sealing cover (22) at one end and a first connecting end (26) at the other end. The first sealing cover (22) is fixedly connected to the burner (10).

5. The direct thermal oxidizer according to claim 4, characterized in that, The burner (10) has a fixing plate (11) in the middle position, a first interface (12) at one end of the burner (10) and a burner head (13) at the other end, and the first sealing cover (22) is fixedly connected to the fixing plate (11).

6. The direct thermal oxidizer according to claim 4, characterized in that, The combustion chamber (50) is provided with a second connecting end (52) at one end and a second sealing cover (53) at the other end. The second connecting end (52) is sealed to the first connecting end (26).

7. The direct thermal oxidizer according to claim 6, characterized in that, The combustion chamber (50) is provided with an observation window (51) and a plurality of second sensors (55) are provided at the top.

8. The direct thermal oxidizer according to claim 1, characterized in that, The chimney (60) is provided with a lifting lug (61) at the top and a chimney cover (62) at the top.

9. The direct thermal oxidizer according to claim 1, characterized in that, The chimney (60) is provided with legs (65), and the legs (65) are fixedly connected to the fixing member (66) and the channel steel (67) from bottom to top. The two ends of the ladder (70) are fixedly connected to the fixing member (66) and the channel steel (67) respectively.

10. The direct thermal oxidizer according to claim 1, characterized in that, The exhaust gas inlet (23) and the fresh air inlet (24) are respectively connected to the fan, and the inner diameter of the exhaust gas inlet (23) is larger than the inner diameter of the fresh air inlet (24).

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