Catalytic combustion waste gas treatment device
By designing an auxiliary catalytic mechanism and optimizing the catalyst shape in the catalytic combustion furnace, the problem of insufficient contact between waste gas and catalyst was solved, thereby improving the waste gas treatment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-27
AI Technical Summary
The limited contact between waste gas and catalyst in existing catalytic combustion furnaces leads to reduced catalytic efficiency, which in turn reduces waste gas treatment capacity.
A catalytic combustion exhaust gas treatment device was designed, which includes an auxiliary catalytic mechanism in the catalytic chamber. The drive motor drives the active gear and gear ring to rotate the mounting shell and change the orientation of the exhaust port, thereby uniformly spraying the gas onto the catalyst. The contact area and contact time between the gas and the catalyst are increased by the cooperation of the frustum-shaped catalyst and the baffle through holes.
It improves the contact efficiency between waste gas and catalyst, significantly enhancing the waste gas treatment effect.
Smart Images
Figure CN224050393U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waste gas treatment technical field, concretely is a kind of catalytic combustion waste gas treatment device. BACKGROUND
[0002] Catalytic combustion is the purification method that combustible material in waste gas is oxidized and decomposed at lower temperature using catalyst, so, catalytic combustion is also called catalytic chemical conversion, and catalytic combustion device is mainly composed of heat exchanger, combustion chamber, catalytic reactor, heat recovery system and the discharge chimney of purified flue gas etc.
[0003] In prior art, waste gas in catalytic combustion furnace is difficult to be fully mixed with catalyst and oxygen, and catalyst is mostly fixedly placed, so that the contact between waste gas, oxygen and solid catalyst is limited, catalytic efficiency is reduced, and thus waste gas treatment capacity is reduced. UTILITY MODEL CONTENT
[0004] To solve the above technical problems, the utility model provides the following technical scheme:
[0005] The utility model relates to a kind of catalytic combustion waste gas treatment device, including catalytic chamber, auxiliary catalytic mechanism is arranged in the catalytic chamber;
[0006] The auxiliary catalytic mechanism includes air inlet pipe, the fixed tube is fixedly connected to the air inlet pipe output end, the fixed tube outside is fixedly connected to the bottom of the bottom wall middle part in the catalytic chamber, the top of the base is rotatably connected with the installation shell, the left and right two walls middle part of the installation shell is provided with multiple groups of evenly distributed exhaust holes, the outer circumferential bottom of the installation shell is fixedly connected with gear ring, the right side of the gear ring is engagedly connected with driving gear, the bottom wall middle part of the driving gear is fixedly connected with connecting shaft, and the connecting shaft is fixedly connected to the output shaft of drive motor.
[0007] As a preferred technical scheme of the utility model, the air inlet pipe is fixedly connected in the bottom wall middle part of catalytic chamber, and the exhaust pipe is fixedly connected in the top wall middle part of catalytic chamber.
[0008] As a preferred technical scheme of the utility model, the drive motor is fixedly connected to the right side of the bottom wall middle part of catalytic chamber, and the drive motor is located to the right side of air inlet pipe.
[0009] As a preferred technical scheme of the utility model, the bottom wall of the catalytic chamber is fixedly connected with multiple groups of annularly distributed support rods, and the middle part of the air inlet pipe is provided with booster pump.
[0010] As a preferred technical scheme of the utility model, the middle lower part of the inner side wall of the catalytic chamber is provided with multiple groups of evenly distributed catalysts, and the shape of the catalyst is all truncated cone.
[0011] As a preferred technical scheme of the utility model, the catalyst top wall is fixedly connected with a baffle, and a plurality of groups of annularly distributed through holes are arranged on the inner side of the baffle.
[0012] As a preferred technical scheme of the utility model, the fixed pipe is located on the inner side of the mounting shell, and the fixed pipe output end is located on the top of the inner side of the fixed pipe.
[0013] The utility model has the advantages of:
[0014] 1. The catalytic combustion waste gas treatment device, through the waste gas is treated before, it is input from the air inlet pipe inside the catalytic chamber, simultaneously starting the driving motor, the driving motor output shaft rotation makes the driving gear rotate, thereby the gear ring is driven and the mounting shell rotates, the mounting shell rotates and changes the exhaust hole orientation, so that it sprays the gas to the outside catalyst evenly, improves the contact area of the gas and the catalyst, thereby improves the waste gas treatment efficiency;
[0015] 2. The catalytic combustion waste gas treatment device, by making the catalyst into a circular truncated cone and setting the gas discharge passage between the adjacent two catalysts, finally under the cooperation of the baffle and the through hole, the contact area and the contact time of the gas and the catalyst are greatly increased, thereby the waste gas treatment efficiency can be further improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:
[0017] Figure 1 It is the overall structure of the utility model catalytic combustion waste gas treatment device's overhead schematic view;
[0018] Figure 2 It is the overall structure of the utility model catalytic combustion waste gas treatment device's overhead schematic view;
[0019] Figure 3 It is the internal structure schematic view of the utility model catalytic combustion waste gas treatment device;
[0020] Figure 4 It is the waste gas treatment structure schematic view of the utility model catalytic combustion waste gas treatment device.
[0021] In the drawing: 1, catalytic chamber;2, auxiliary catalytic mechanism;3, exhaust pipe;4, support rod;5, air inlet pipe;6, booster pump;7, driving motor;8, connecting shaft;9, driving gear;10, gear ring;11, mounting shell;12, exhaust hole;13, fixed pipe;14, base;15, catalyst;16, baffle;17, through hole. DETAILED DESCRIPTION
[0022] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model.
[0023] Embodiment: as Figures 1-4 The utility model discloses a catalytic combustion waste gas treatment device, including catalytic chamber 1, and the inside of catalytic chamber 1 is provided with auxiliary catalytic mechanism 2;
[0024] Auxiliary catalytic mechanism 2 includes air inlet pipe 5, and the gas needing catalysis can be discharged to the inside of catalytic chamber 1 through air inlet pipe 5, and the output end of air inlet pipe 5 is fixedly connected with fixed pipe 13, the outside of fixed pipe 13 is fixedly connected with base 14 in the middle of the bottom wall in catalytic chamber 1, and the base 14 is arranged to enable the installation shell 11 to rotate inside catalytic chamber 1, the top of base 14 is rotatably connected with installation shell 11, and the middle of the left and right two walls of installation shell 11 is provided with multiple groups of evenly distributed exhaust holes 12, the gas can be discharged from the inside of installation shell 11 through exhaust hole 12, the periphery bottom of installation shell 11 is fixedly connected with gear ring 10, the right side of gear ring 10 is engagedly connected with driving gear 9, the middle of the bottom wall of driving gear 9 is fixedly connected with connecting shaft 8, and connecting shaft 8 is fixedly connected on the output shaft of driving motor 7, and driving gear 9 can drive gear ring 10 and installation shell 11 to rotate in the process of rotation.
[0025] Air inlet pipe 5 penetrates and is fixedly connected in the middle of the bottom wall of catalytic chamber 1, and the middle of the top wall of catalytic chamber 1 penetrates and is fixedly connected with exhaust pipe 3, driving motor 7 is fixedly connected on the right side of the middle of the bottom wall of catalytic chamber 1, driving motor 7 is located on the right side of air inlet pipe 5, and driving motor 7 can make connecting shaft 8 rotate in the process of working, thereby making top driving gear 9 rotate, and the gas treated is discharged from the top exhaust pipe 3 and away from catalytic chamber 1.
[0026] The bottom wall of catalytic chamber 1 is fixedly connected with multiple groups of annularly distributed support rods 4, the middle of air inlet pipe 5 is provided with booster pump 6, booster pump 6 can make the gas enter catalytic chamber 1 through air inlet pipe 5 and pressurize the gas in the process of working, so that the gas has a certain initial velocity when being discharged from fixed pipe 13, the inside wall of catalytic chamber 1 is provided with multiple groups of evenly distributed catalysts 15 in the middle and lower part, the shape of catalyst 15 is all truncated cone, support rod 4 can support and fix catalytic chamber 1 and its internal components, and the setting of catalyst 15 as truncated cone can increase the contact area with the gas.
[0027] The top catalyst 15 is fixedly connected with a baffle 16, a plurality of groups of annularly distributed through holes 17 are arranged inside and outside the baffle 16, the fixed pipe 13 is located inside the mounting shell 11, and the output end of the fixed pipe 13 is located at the top inside the fixed pipe 13. The baffle 16 can avoid the gas directly passing through the middle part of the catalyst 15 without contacting the catalyst 15, thereby reducing the gas flow rate and increasing the contact area and contact time of the gas with the catalyst 15.
[0028] Working principle: before the exhaust gas needs to be treated, the exhaust gas is input into the inside of the catalytic chamber 1 from the gas inlet pipe 5, and the driving motor 7 is started at the same time, the output shaft of the driving motor 7 rotates to drive the driving gear 9 to rotate, thereby driving the tooth ring 10 to rotate with the mounting shell 11, the mounting shell 11 rotates to change the direction of the exhaust hole 12, so that the gas is uniformly sprayed to the outside catalyst 15, the contact area of the gas with the catalyst 15 is increased, the catalyst 15 is made into a circular truncated cone shape, and a gas discharge channel is arranged between adjacent two catalysts 15, and finally the contact area and contact time of the gas with the catalyst 15 are greatly increased under the cooperation of the baffle 16 and the through hole 17, so that the exhaust gas treatment efficiency can be further improved.
[0029] Finally, it should be noted that in the description of the utility model, it should be pointed out that the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.
[0030] In the description of the utility model, it should also be pointed out that unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.
[0031] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the 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 make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A catalytic combustion exhaust treatment device comprising a catalytic chamber (1), characterised in that: The catalytic chamber (1) is internally provided with an auxiliary catalytic mechanism (2); The auxiliary catalytic mechanism (2) comprises an air inlet pipe (5), the output end of the air inlet pipe (5) is fixedly connected with a fixed pipe (13), the outer side of the fixed pipe (13) in the middle of the bottom wall in the catalytic chamber (1) is fixedly connected with a base (14), the top of the base (14) is rotatably connected with a mounting shell (11), the middle of the left and right walls of the mounting shell (11) is provided with a plurality of groups of uniformly distributed exhaust holes (12), the outer circumferential bottom of the mounting shell (11) is fixedly connected with a gear ring (10), the right side of the gear ring (10) is meshingly connected with a driving gear (9), the middle of the bottom wall of the driving gear (9) is fixedly connected with a connecting shaft (8), and the connecting shaft (8) is fixedly connected with the output shaft of a driving motor (7).
2. A catalytic combustion exhaust treatment device according to claim 1, wherein, The air inlet pipe (5) penetrates and is fixedly connected in the middle of the bottom wall of the catalytic chamber (1), and the middle of the top wall of the catalytic chamber (1) penetrates and is fixedly connected with an exhaust pipe (3).
3. A catalytic combustion exhaust treatment device according to claim 1, wherein, The driving motor (7) is fixedly connected to the right side of the middle of the bottom wall of the catalytic chamber (1), and the driving motor (7) is located to the right side of the air inlet pipe (5).
4. A catalytic combustion exhaust treatment device according to claim 1, wherein, The bottom wall of the catalytic chamber (1) is fixedly connected with a plurality of groups of annularly distributed support rods (4), and the middle of the air inlet pipe (5) is provided with a booster pump (6).
5. A catalytic combustion exhaust treatment device according to claim 1, wherein, The middle and lower parts of the inner side wall of the catalytic chamber (1) are provided with a plurality of groups of uniformly distributed catalysts (15), and the shapes of the catalysts (15) are all truncated cone shapes.
6. A catalytic combustion exhaust treatment device according to claim 5, wherein, The top wall of the catalyst (15) is fixedly connected with a baffle (16), and the inside of the baffle (16) is provided with a plurality of groups of annularly distributed through holes (17).
7. A catalytic combustion exhaust treatment device according to claim 1, wherein, The fixed pipe (13) is located inside the mounting shell (11), and the output end of the fixed pipe (13) is located at the top of the inside of the fixed pipe (13).