Catalytic combustion industrial waste gas treatment equipment
By using a flow stabilizer plate, agitator, and lightweight filter screen in the exhaust gas treatment equipment, the problems of uneven mixing of exhaust gas and air and particulate matter removal are solved, ensuring complete combustion of exhaust gas and normal operation of the catalytic combustion chamber.
Patent Information
- Application Number
- CN202520049967.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing industrial waste gas treatment equipment exhibits uneven mixing of air and waste gas, leading to incomplete combustion and an inability to effectively remove dust and particles, which may have a long-term impact on the catalytic combustion chamber.
The system employs a flow stabilizer plate, agitator, and lightweight filter screen. The flow stabilizer plate stabilizes the exhaust gas flow rate, the agitator mixes the air and exhaust gas, and the lightweight filter screen filters out particles, ensuring uniform mixing and particle removal. A hot air pipe is installed for water vapor pretreatment.
It achieves uniform mixing of air and exhaust gas, ensures complete combustion of exhaust gas, effectively removes particulate matter, and protects the normal operation of the catalytic combustion chamber.
Smart Images
Figure CN223709676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas treatment technology, specifically to a catalytic combustion industrial waste gas treatment device. Background Technology
[0002] Catalytic combustion is a purification method that uses a catalyst to oxidize and decompose combustible substances in waste gas at a lower temperature. Because the catalyst accelerates the oxidation and decomposition process, most hydrocarbons can be completely burned at a temperature of 300-450°C. Compared with thermal combustion, catalytic combustion requires less auxiliary fuel, consumes less energy, and has smaller equipment and facilities.
[0003] In existing technologies, conventional industrial waste gas treatment equipment typically involves directly supplying outside air through pipes into the waste gas pipeline, then mixing the waste gas with the air and sending the mixture into the equipment for catalytic combustion. However, this method results in uneven mixing of air and waste gas, leading to stratification and incomplete combustion. This affects the efficiency and quality of the catalytic reaction, resulting in poor performance. Furthermore, it fails to remove dust and particles contained in the air or waste gas, leaving residual particles after combustion. Over time, these particles may damage the interior of the catalytic combustion chamber. To address these issues, the inventors propose a catalytic combustion industrial waste gas treatment device. Utility Model Content
[0004] To address the problems of unsatisfactory performance of existing catalytic combustion industrial waste gas treatment equipment, and the potential impact of water vapor and particulate matter in the waste gas on the operation of the catalytic combustion chamber, the purpose of this invention is to provide a catalytic combustion industrial waste gas treatment equipment.
[0005] To solve the above technical problems, this utility model adopts the following technical solution: a catalytic combustion industrial waste gas treatment device, including a treatment box and a catalytic combustion box. A waste gas connection pipe is fixedly connected to the side wall of the treatment box, and a flow stabilizer plate is fixedly connected to the inner side wall of the treatment box. A hot gas pipe is fixedly connected to the side wall of the treatment box, with the output end of the hot gas pipe corresponding to the output end of the waste gas connection pipe. A rotating shaft is rotatably connected inside the treatment box and to one side of the flow stabilizer plate. An agitator is fixedly sleeved on the side wall of the rotating shaft. A blower is provided on one side of the treatment box, and the output end of the blower extends... The device extends into the processing chamber. A conical cavity is fixedly connected to the upper part of the inner wall of the processing chamber. A smoke outlet pipe is fixedly connected to the top of the conical cavity. A cavity plate is fixedly connected to the bottom of the conical cavity. A lightweight frame is provided on one side of the cavity plate. A lightweight filter screen is fixedly connected to the end face of the lightweight frame. A spring is provided between the cavity plate and the lightweight frame. An arc-shaped pipe is provided at the output end of the smoke outlet pipe. The end of the arc-shaped pipe away from the smoke outlet pipe is fixedly connected to the input end of the catalytic combustion chamber. A connecting pipe and a smoke exhaust pipe are fixedly connected to the output end of the catalytic combustion chamber. The output end of the connecting pipe is fixedly connected to the input end of the hot gas pipe.
[0006] Preferably, the flow stabilizer plate corresponds to the exhaust gas connection pipe, and the bottom surface of the flow stabilizer plate is spaced apart from the inner bottom wall of the treatment box. The exhaust gas connection pipe is used to connect to the external exhaust gas supply pipe. Exhaust gas is discharged into the treatment box through the exhaust gas connection pipe. The flow stabilizer plate can block and stabilize the discharged exhaust gas. After stabilization, the exhaust gas enters the agitator through the gap between the flow stabilizer plate and the treatment box. A fixing seat is provided on the side wall of the blower. The side wall of the fixing seat is fixedly connected to the outer side wall of the treatment box. The blower is installed through the fixing seat. When the blower is started... The machine can supply air into the treatment chamber to mix with the exhaust gas, so that the mixed gas can be transported to the catalytic combustion chamber for catalytic combustion. The flue gas after catalytic combustion is discharged through the connecting pipe and the exhaust pipe. The flue gas after catalytic combustion is high-temperature flue gas. Some of the high-temperature flue gas can enter the hot gas pipe through the connecting pipe. The output end of the hot gas pipe corresponds to the input end of the exhaust gas connection pipe. The high-temperature flue gas discharged from the hot gas pipe can pre-treat the exhaust gas to remove water vapor and ensure the normal operation of the catalytic combustion chamber.
[0007] Preferably, a motor is installed inside the treatment chamber, with the output shaft of the motor fixedly connected to the shaft of the rotating shaft. The conical cavity has a cross-section that is smaller at the top and larger at the bottom. A base is provided on the side wall of the motor, and the base is fixed to the inner wall of the treatment chamber. When the motor is started, the rotating shaft can drive the agitator to rotate under the action of the motor output shaft, thereby making the air and exhaust gas uniformly mixed to avoid stratification between the exhaust gas and air, which would lead to incomplete combustion of the exhaust gas. The bottom surface of the cavity plate is provided with a U-shaped groove, and the lightweight frame is located in the U-shaped groove. The top surface of the lightweight frame is fixedly connected to... A spring is attached, with its top end fixedly connected to the inner top wall of the slot. The rising mixed gas is filtered through a lightweight filter to remove particles from the mixed gas, preventing them from entering the catalytic combustion chamber and thus avoiding long-term accumulation that could affect the interior of the catalytic combustion chamber. As the gas rises, it impacts the lightweight filter, exerting force on the lightweight frame. Under the action of the spring, the lightweight frame shakes, causing the lightweight filter to shake as well, allowing filtered particles to fall off and avoid affecting subsequent filtration.
[0008] Preferably, a first flange is fixedly connected to the end of the flue pipe, and a second flange is fixedly connected to the input end of the arc-shaped pipe. The first flange and the second flange correspond to and cooperate with each other. Through the cooperation of the first flange and the second flange, the arc-shaped pipe can be installed on the flue pipe, and the mixed flue gas can be discharged into the catalytic combustion chamber through the arc-shaped pipe.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] 1. In this utility model, a flow stabilizer is provided at the output end of the exhaust gas connection pipe. The flow stabilizer can block and stabilize the flow of the exhaust gas to avoid the exhaust gas flow rate being too fast and affecting gas mixing. A hot gas pipe is provided on one side of the output end of the exhaust gas connection pipe. After the mixed gas is catalytically combusted, the flue gas after catalytic combustion is high-temperature flue gas. Part of the high-temperature flue gas can enter the hot gas pipe through the connecting pipe. The high-temperature flue gas discharged from the hot gas pipe can pre-treat the exhaust gas to remove water vapor and ensure the normal operation of the catalytic combustion chamber.
[0011] 2. In this utility model, an agitator is installed inside the treatment box. When the motor is started, the rotating shaft can drive the agitator to rotate under the action of the motor output shaft, thereby making the air and exhaust gas evenly mixed, so as to avoid the stratification between exhaust gas and air, which would lead to incomplete combustion of exhaust gas.
[0012] 3. This utility model is equipped with a lightweight filter screen, which can filter particles in the mixed gas to prevent them from entering the catalytic combustion chamber and thus avoid long-term accumulation that could affect the interior of the catalytic combustion chamber. When the gas rises, it impacts the lightweight filter screen, which in turn exerts force on the lightweight frame. Under the action of the spring, the lightweight frame can shake, which in turn causes the lightweight filter screen to shake, allowing the filtered particles and impurities to fall off and avoid affecting the subsequent filtration effect. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is another structural schematic diagram of the present utility model.
[0016] Figure 3 This is a schematic diagram of the internal structure of the processing box of this utility model.
[0017] Figure 4 This is a schematic diagram showing the fit between the cavity plate and the lightweight frame of this utility model.
[0018] Figure 5 This is a schematic diagram showing the combination of the lightweight frame and the lightweight filter screen of this utility model.
[0019] Figure 6 This is an enlarged view of section A of this utility model.
[0020] In the diagram: 1. Treatment box; 2. Exhaust gas connection pipe; 3. Flow stabilizer plate; 4. Blower; 5. Fixed base; 6. Hot gas pipe; 7. Connecting pipe; 8. Rotating shaft; 9. Agitator; 10. Conical cavity; 11. Smoke outlet pipe; 12. First flange; 13. Cavity plate; 14. Lightweight frame; 15. Lightweight filter screen; 16. Spring; 17. Catalytic combustion box; 18. Arc-shaped pipe; 19. Second flange; 20. Exhaust pipe. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example: Figure 1-6 As shown, this utility model provides a catalytic combustion industrial waste gas treatment device, including a treatment box 1 and a catalytic combustion box 17. A waste gas connecting pipe 2 is fixedly connected to the side wall of the treatment box 1, and a flow stabilizing plate 3 is fixedly connected to the inner side wall of the treatment box 1. A hot gas pipe 6 is fixedly connected to the side wall of the treatment box 1, with the output end of the hot gas pipe 6 corresponding to the output end of the waste gas connecting pipe 2. A rotating shaft 8 is rotatably connected inside the treatment box 1 and to one side of the flow stabilizing plate 3. An agitator 9 is fixedly sleeved on the side wall of the rotating shaft 8. A blower 4 is provided on one side of the treatment box 1, with the output end of the blower 4 extending into the treatment box 1. The inner side wall of the treatment box 1... A conical cavity 10 is fixedly connected to the upper part. A smoke outlet pipe 11 is fixedly connected to the top of the conical cavity 10. A cavity plate 13 is fixedly connected to the bottom of the conical cavity 10. A lightweight frame 14 is provided on one side of the cavity plate 13. A lightweight filter screen 15 is fixedly connected to the end face of the lightweight frame 14. A spring 16 is provided between the cavity plate 13 and the lightweight frame 14. An arc-shaped pipe 18 is provided at the output end of the smoke outlet pipe 11. The end of the arc-shaped pipe 18 away from the smoke outlet pipe 11 is fixedly connected to the input end of the catalytic combustion chamber 17. A connecting pipe 7 and a smoke exhaust pipe 20 are fixedly connected to the output end of the catalytic combustion chamber 17. The output end of the connecting pipe 7 is fixedly connected to the input end of the hot gas pipe 6.
[0023] The flow stabilizer 3 corresponds to the exhaust gas connection pipe 2, and there is a distance between the bottom surface of the flow stabilizer 3 and the inner bottom wall of the treatment box 1.
[0024] By adopting the above technical solution, the exhaust gas connection pipe 2 is used to connect with the external exhaust gas supply pipe. The exhaust gas is discharged into the treatment box 1 through the exhaust gas connection pipe 2. The flow stabilizer plate 3 can block and stabilize the discharged exhaust gas. After the flow stabilizer plate 3 is used, the exhaust gas enters the agitator 9 through the gap between the flow stabilizer plate 3 and the treatment box 1.
[0025] The blower 4 has a fixed seat 5 on its side wall, and the side wall of the fixed seat 5 is fixedly connected to the outer side wall of the treatment box 1.
[0026] By adopting the above technical solution, the blower 4 is installed through the fixed base 5. Starting the blower 4 allows air to be supplied to the treatment box 1, mixing the air with the exhaust gas. This mixture is then transported to the catalytic combustion box 17 for catalytic combustion. The flue gas after catalytic combustion is discharged through the connecting pipe 7 and the exhaust pipe 20. The flue gas after catalytic combustion is high-temperature flue gas, and some of it can enter the hot gas pipe 6 through the connecting pipe 7. The output end of the hot gas pipe 6 corresponds to the input end of the exhaust gas connecting pipe 2. The high-temperature flue gas discharged from the hot gas pipe 6 can pre-treat the exhaust gas to remove water vapor, ensuring the normal operation of the catalytic combustion box 17. The catalytic combustion box 17 is a mature existing product. The structure of the catalytic combustion box 17 mainly includes the following parts: heat exchanger, preheating chamber, thermal resistor, catalytic bed, explosion-proof device, blower, and electrical control system. The heat exchanger adopts a plate heat exchange structure, utilizing catalytic reaction... The released heat heats the intake air, improving thermal energy utilization and reducing heating electricity. The preheating chamber is heated by far-infrared electric heating tubes to increase the intake air temperature to meet reaction conditions. The thermal resistor uses a stainless steel protective tube to measure the intake air heating and purification temperature. The catalytic bed is composed of multiple layers of honeycomb catalyst and is the core part of the device. The explosion-proof device is located on the top of the main unit and adopts a diaphragm pressure relief hole design. When an accident occurs during equipment operation, it can rupture in time to relieve pressure and prevent accidents. The fan adopts a rear-extraction design, so that the device can work under negative pressure. The electrical control system includes PLC controller, text display, frequency converter, igniter, ultraviolet sensor, thermocouple and other electrical control equipment, as well as a zero-pressure valve to adjust the ratio of gas to air. The working principle of the catalytic combustion chamber 17 is that the waste gas needs to pass through the catalytic combustion bed. Under the action of the catalyst, the harmful substances in the waste gas react with oxygen to generate harmless substances, which can then be safely discharged into the atmosphere.
[0027] The processing box 1 is equipped with a motor. The output shaft of the motor is fixedly connected to the shaft of the rotating shaft 8. The cross-section of the conical cavity 10 is smaller at the top and larger at the bottom.
[0028] By adopting the above technical solution, a base is provided on the side wall of the motor. The base is fixed to the inner wall of the treatment box 1. When the motor is started, the rotating shaft 8 can drive the agitator 9 to rotate under the action of the motor output shaft, so that the air and exhaust gas can be mixed evenly to avoid the stratification between exhaust gas and air, which would result in incomplete combustion of exhaust gas.
[0029] The bottom surface of the cavity plate 13 is provided with a U-shaped groove, the lightweight frame 14 is located in the U-shaped groove, and the top surface of the lightweight frame 14 is fixedly connected with a spring 16, the top end of the spring 16 is fixedly connected to the inner top wall of the U-shaped groove.
[0030] By adopting the above technical solution, the rising mixed gas is filtered through the lightweight filter 15 to remove particles from the mixed gas, so as to prevent the particles in the gas from entering the catalytic combustion chamber 17, thereby avoiding long-term accumulation and affecting the interior of the catalytic combustion chamber 17. When the gas rises, the gas will impact the lightweight filter 15, which will exert force on the lightweight frame 14. Under the action of the spring 16, the lightweight frame 14 can be shaken, which will cause the lightweight filter 15 to shake, so that the filtered particulate impurities can fall off, thereby avoiding affecting the subsequent filtration effect.
[0031] The end of the flue pipe 11 is fixedly connected to a first flange 12, and the inlet end of the arc-shaped pipe 18 is fixedly connected to a second flange 19. The first flange 12 and the second flange 19 correspond to and cooperate with each other.
[0032] By adopting the above technical solution, the arc-shaped pipe 18 can be installed on the flue gas outlet pipe 11 through the cooperation of the first flange 12 and the second flange 19, and the mixed flue gas can be discharged into the catalytic combustion chamber 17 through the arc-shaped pipe 18.
[0033] Working principle: When this utility model is in use, the exhaust gas connection pipe 2 is connected to the external exhaust gas supply pipe, and the exhaust gas is discharged into the treatment box 1 through the exhaust gas connection pipe 2. The flow stabilizing plate 3 can block and stabilize the discharged exhaust gas. After the flow is stabilized, the exhaust gas enters the agitator 9 through the gap between the flow stabilizing plate 3 and the treatment box 1.
[0034] At the same time, the blower 4 is started, which can deliver air into the treatment box 1 so that the air can be mixed with the exhaust gas. The motor is also started, and the rotating shaft 8 can drive the agitator 9 to rotate under the action of the motor output shaft, so that the air and exhaust gas can be mixed evenly to avoid the stratification between the exhaust gas and the air, which would result in incomplete combustion of the exhaust gas.
[0035] The rising mixed gas is filtered through a light filter screen 15. The filtered mixed gas is discharged into the catalytic combustion chamber 17 through an arc-shaped pipe 18 for catalytic combustion. The flue gas after catalytic combustion is high-temperature flue gas. Some of the high-temperature flue gas can enter the hot gas pipe 6 through the connecting pipe 7. The output end of the hot gas pipe 6 corresponds to the input end of the exhaust gas connecting pipe 2. The high-temperature flue gas discharged from the hot gas pipe 6 can pre-treat the exhaust gas to remove water vapor and ensure the normal operation of the catalytic combustion chamber 17.
[0036] Furthermore, when the mixed gas is filtered through the lightweight filter screen 15, the gas impacts the lightweight filter screen 15, which in turn exerts force on the lightweight frame 14. Under the action of the spring 16, the lightweight frame 14 can shake, which in turn makes the lightweight filter screen 15 shake, so that the filtered particulate impurities fall off, thus avoiding affecting the subsequent filtration effect.
[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A catalytic combustion industrial waste gas treatment device, comprising a treatment tank (1) and a catalytic combustion tank (17), characterized in that: A waste gas connection pipe (2) is fixedly connected to the side wall of the treatment box (1). A flow stabilizer plate (3) is fixedly connected to the inner side wall of the treatment box (1). A hot gas pipe (6) is fixedly connected to the side wall of the treatment box (1). The output end of the hot gas pipe (6) corresponds to the output end of the waste gas connection pipe (2). A rotating shaft (8) is rotatably connected inside the treatment box (1) and on one side of the flow stabilizer plate (3). An agitator (9) is fixedly sleeved on the side wall of the rotating shaft (8). A blower (4) is provided on one side of the treatment box (1). The output end of the blower (4) extends into the treatment box (1). A conical cavity (10) is fixedly connected to the upper part of the inner side wall of the treatment box (1). A smoke outlet pipe (11) is fixedly connected to the top end. A cavity plate (13) is fixedly connected to the bottom end of the conical cavity (10). A lightweight frame (14) is provided on one side of the cavity plate (13). A lightweight filter screen (15) is fixedly connected to the end face of the lightweight frame (14). A spring (16) is provided between the cavity plate (13) and the lightweight frame (14). An arc-shaped pipe (18) is provided at the output end of the smoke outlet pipe (11). The end of the arc-shaped pipe (18) away from the smoke outlet pipe (11) is fixedly connected to the input end of the catalytic combustion chamber (17). A connecting pipe (7) and a smoke exhaust pipe (20) are fixedly connected to the output end of the catalytic combustion chamber (17). The output end of the connecting pipe (7) is fixedly connected to the input end of the hot gas pipe (6).
2. The catalytic combustion industrial waste gas treatment equipment as described in claim 1, characterized in that, The flow stabilizer plate (3) corresponds to the exhaust gas connection pipe (2), and the bottom surface of the flow stabilizer plate (3) is separated from the inner bottom wall of the treatment box (1).
3. The catalytic combustion industrial waste gas treatment equipment as described in claim 1, characterized in that, The blower (4) has a fixed seat (5) on its side wall, and the side wall of the fixed seat (5) is fixedly connected to the outer side wall of the processing box (1).
4. The catalytic combustion industrial waste gas treatment equipment as described in claim 1, characterized in that, The processing box (1) is equipped with a motor, and the output shaft of the motor is fixedly connected to the shaft end of the rotating shaft (8).
5. The catalytic combustion industrial waste gas treatment equipment as described in claim 1, characterized in that, The cross-section of the conical cavity (10) is smaller at the top and larger at the bottom.
6. The catalytic combustion industrial waste gas treatment equipment as described in claim 1, characterized in that, The bottom surface of the cavity plate (13) is provided with a slit, and the lightweight frame (14) is located in the slit.
7. The catalytic combustion industrial waste gas treatment equipment as described in claim 6, characterized in that, A spring (16) is fixedly connected to the top surface of the lightweight frame (14), and the top end of the spring (16) is fixedly connected to the inner top wall of the slot.
8. The catalytic combustion industrial waste gas treatment equipment as described in claim 1, characterized in that, The end of the smoke outlet pipe (11) is fixedly connected to a first flange (12), and the input end of the arc-shaped pipe (18) is fixedly connected to a second flange (19). The first flange (12) and the second flange (19) correspond to and cooperate with each other.