Exhaust gas combustion decomposition treatment device

Abstract

The utility model relates to exhaust treatment technical field especially, more particularly to a kind of waste gas combustion decomposition treatment device, including base, the top of base is fixedly connected with combustion box, gas mixing cavity and combustion cavity are opened in combustion box, the top of base is fixedly installed with fan, fan is connected with fan-shaped spray head by double gas mixing structure, the right side of combustion box is connected with gas outlet pipe, the front of combustion box is opened with fire door for easy cleaning and overhaul.The utility model vortex mixing subassembly can guide oxygen and exhaust gas to form vortex motion by spiral flow guide vane in big mixing bucket, and the centrifugal force is used to make two kinds of gas preliminary efficient mixing;Cyclone mixing subassembly is driven by driving motor to rotate blade high-speed rotation, and the gas after preliminary mixing is second cyclone stirring, so that gas is further fully integrated in dynamic rotation, and double mixing effect greatly improves the mixing uniformity of oxygen and exhaust gas, and lays foundation for sufficient combustion.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas combustion and decomposition treatment device. Background Technology

[0002] Waste gas refers to toxic and harmful gases emitted by humans during production and daily life. Waste gas treatment refers to the pretreatment of toxic and harmful gases to meet national waste gas emission standards. There are various methods for waste gas treatment, including the more common combustion decomposition method.

[0003] Existing waste gas combustion and decomposition treatment devices, such as the one disclosed in CN222849259U, employ an inlet pipe, a connecting pipe, a gas delivery pipe, gas delivery branch pipes, a fan, and a motor. In operation, waste gas enters the inlet pipe through the connecting pipe, the fan delivers air into the gas delivery pipe, and the motor drives the gas delivery pipe and several gas delivery branch pipes to rotate. This causes the air and waste gas to come into contact and mix inside the inlet pipe, and the gas delivery branch pipes further agitate and mix the air and waste gas, thereby improving the mixing degree. However, the waste gas inlet pipe is located behind the oxygen delivery straight pipe. During gas delivery, the waste gas may be blocked by the rotating air delivery straight pipe, preventing it from entering the combustion chamber and thus hindering complete combustion, increasing treatment costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing exhaust gas inlet pipes located behind oxygen supply pipes, where exhaust gas may be blocked by the rotating air supply pipe during gas delivery, preventing the exhaust gas from entering the combustion chamber and thus hindering complete combustion and increasing processing costs. Therefore, this invention proposes an exhaust gas combustion and decomposition treatment device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waste gas combustion and decomposition treatment device includes a base, a combustion chamber fixedly connected to the top of the base, a gas mixing chamber and a combustion chamber opened inside the combustion chamber, a fan fixedly installed on the top of the base, the fan being connected to a fan-shaped nozzle through a dual gas mixing structure, an exhaust pipe being connected through the right side of the combustion chamber, and a fireproof door for easy cleaning and maintenance being opened on the front of the combustion chamber.

[0007] Preferably, a dustproof net is fixedly connected to the air outlet on the right side of the inner wall of the combustion chamber by bolts, and the dustproof net can block large particulate solid impurities in the exhaust gas.

[0008] Preferably, the dual gas mixing structure consists of a vortex mixing component and a cyclone mixing component. The vortex mixing component includes an oxygen input pipe fixedly installed on the fan, a large mixing barrel fixedly installed on the bottom of the inner wall of the gas mixing chamber, a spiral guide vane fixedly connected to the inner wall of the large mixing barrel, a gas delivery pipe connected through the top of the large mixing barrel, and an exhaust gas input pipe connected through the outer wall of the large mixing barrel.

[0009] Preferably, the end of the oxygen input pipe away from the blower is connected through to the bottom of the large mixing tank, the end of the exhaust gas input pipe near the large mixing tank is located above the oxygen input pipe, and the other end of the exhaust gas input pipe is connected to an external exhaust gas source.

[0010] Preferably, the cyclone mixing assembly includes a small mixing barrel fixedly installed at the bottom of the inner wall of the gas mixing chamber, a drive motor fixedly installed at the bottom of the small mixing barrel, a rotating blade fixedly connected to the output end of the drive motor, and a gas delivery pipe connected through the top of the small mixing barrel.

[0011] Preferably, the end of the second gas supply pipe away from the small mixing tank is connected to the fan-shaped nozzle, the outlet of the first gas supply pipe is higher than the rotating blade, the drive motor drives the rotating blade to rotate, further mixing the mixed exhaust gas from the first gas supply pipe, and finally discharging it into the combustion chamber through the second gas supply pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. When using this utility model, by reasonably arranging the exhaust gas inlet pipe and the oxygen inlet pipe (the exhaust gas inlet pipe is located above the oxygen inlet pipe), and by using the dual gas mixing structure to achieve gas pretreatment, the situation where the exhaust gas is blocked by the rotating parts and cannot enter the combustion chamber is completely avoided, ensuring that the exhaust gas can stably enter the treatment process and ensuring the continuity of combustion and decomposition.

[0014] 2. In use, the vortex mixing component guides oxygen and exhaust gas into a vortex motion through the spiral guide vanes inside the large mixing tank, utilizing centrifugal force to initially and efficiently mix the two gases. The cyclone mixing component, driven by a motor, rotates the blades at high speed, performing secondary cyclone stirring on the initially mixed gas. Combined with the design of the outlet position of the gas delivery pipe, this allows the gases to further and fully integrate during dynamic rotation. This dual mixing effect significantly improves the uniformity of oxygen and exhaust gas mixing, laying the foundation for complete combustion. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a waste gas combustion and decomposition treatment device proposed in this utility model.

[0016] Figure 2A cross-sectional view of a waste gas combustion and decomposition treatment device proposed in this utility model. Figure 1 ;

[0017] Figure 3 This is a three-dimensional structural diagram of a dual gas mixing structure for a waste gas combustion and decomposition treatment device proposed in this utility model.

[0018] Figure 4 A cross-sectional view of a waste gas combustion and decomposition treatment device proposed in this utility model. Figure 2 .

[0019] In the diagram: 1. Base; 2. Combustion chamber; 3. Gas mixing chamber; 4. Combustion chamber; 5. Fan; 6. Fan-shaped nozzle; 7. Gas outlet pipe; 8. Fire door; 9. Dustproof net; 10. Oxygen input pipe; 11. Large mixing tank; 12. Spiral guide vane; 13. Gas supply pipe one; 14. Exhaust gas input pipe; 15. Small mixing tank; 16. Drive motor; 17. Rotating blade; 18. Gas supply pipe two. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-4 A waste gas combustion and decomposition treatment device includes a base 1, which serves as the supporting foundation for the entire device. A combustion chamber 2 is fixedly connected to the top of the base 1 by welding. The combustion chamber 2 contains two independent chambers: a gas mixing chamber 3 and a combustion chamber 4. The gas mixing chamber 3 is used to fully mix oxygen and waste gas, while the combustion chamber 4 provides space for combustion of the mixed gas. A fan 5 is bolted to the top of the base 1 and provides an oxygen source. The fan 5 is connected to a fan-shaped nozzle 6 via a dual gas mixing structure. The fan-shaped nozzle 6 is located inside the combustion chamber 4 and can evenly spray the mixed gas into the combustion chamber 4 for combustion. A gas outlet pipe 7 is connected through the right side of the combustion chamber 2, through which the combusted waste gas is discharged. A fireproof door 8, made of high-temperature resistant material, is hinged to the front of the combustion chamber 2 for easy cleaning and maintenance. The fireproof door 8 ensures the airtightness of the combustion chamber 4 when closed and facilitates maintenance of the internal components when open.

[0022] A dustproof net 9 is fixedly connected to the air outlet on the right side of the inner wall of the combustion chamber 4 by bolts. The dustproof net 9 is made of stainless steel and its mesh diameter is 2-5mm. It can effectively block large solid impurities in the exhaust gas, prevent impurities from being discharged directly with the exhaust gas and causing environmental pollution, and also prevent external debris from entering the interior of the combustion chamber 4.

[0023] The dual gas mixing structure consists of a vortex mixing component and a cyclone mixing component, which ensures uniform mixing of oxygen and exhaust gas through two-stage mixing.

[0024] The vortex mixing assembly includes an oxygen input pipe 10 fixedly installed at the output end of the blower 5, which is made of corrosion-resistant metal. A large mixing tank 11 is bolted to the bottom of the inner wall of the gas mixing chamber 3. Spiral guide vanes 12 are welded to the inner wall of the large mixing tank 11, and these vanes are distributed in a spiral upward pattern along the inner wall of the large mixing tank 11 to guide the gas into a vortex. A gas delivery pipe 13 is connected through the top of the large mixing tank 11, which is used to transport the pre-mixed gas to the cyclone mixing assembly. An exhaust gas input pipe 14 is connected through the outer wall of the large mixing tank 11, and a flow control valve is installed on the exhaust gas input pipe 14.

[0025] The end of the oxygen inlet pipe 10 away from the blower 5 is connected to the bottom of the large mixing tank 11, so that oxygen enters from the bottom of the large mixing tank 11. The end of the exhaust gas inlet pipe 14 near the large mixing tank 11 is set above the oxygen inlet pipe 10, and the other end of the exhaust gas inlet pipe 14 is connected to an external exhaust gas source. In this way, the exhaust gas enters the large mixing tank 11 from above the oxygen inlet. Under the action of the spiral guide vane 12, the oxygen and exhaust gas flow upward with the vortex, achieving preliminary vortex mixing.

[0026] The cyclone mixing assembly includes a small mixing tank 15 fixedly installed at the bottom of the inner wall of the gas mixing chamber 3. A drive motor 16 is fixedly installed at the bottom of the small mixing tank 15 by bolts. The output end of the drive motor 16 is fixedly connected to a rotating blade 17 through a coupling. The rotating blade 17 is located inside the small mixing tank 15. A second gas supply pipe 18 is connected through the top of the small mixing tank 15. The diameter of the second gas supply pipe 18 is smaller than that of the first gas supply pipe 13.

[0027] The end of the second gas pipe 18 away from the small mixing tank 15 is connected to the fan-shaped nozzle 6. The end of the first gas pipe 13 away from the large mixing tank 11 extends into the small mixing tank 15, and the outlet of the first gas pipe 13 is higher than the rotating blade 17. The drive motor 16 drives the rotating blade 17 to rotate at high speed, forming a cyclone, which further stirs and mixes the mixed waste gas from the first gas pipe 13. Finally, the uniformly mixed gas is transported to the fan-shaped nozzle 6 through the second gas pipe 18, and then sprayed into the combustion chamber 4 by the fan-shaped nozzle 6 for combustion.

[0028] It should be noted that the specific models and specifications of the drive motor 16 and the fan 5 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here. Both can be powered by external devices and controlled to turn on and off.

[0029] Working principle:

[0030] During operation, the blower 5 delivers oxygen to the bottom of the large mixing tank 11 through the oxygen input pipe 10. At the same time, the exhaust gas enters the large mixing tank 11 from above the oxygen input pipe 10 through the exhaust gas input pipe 14. Under the guidance of the spiral guide vane 12, the oxygen and exhaust gas form a vortex and flow upwards, and are initially mixed. The gas after initial mixing enters the small mixing tank 15 through the first gas delivery pipe 13. The drive motor 16 drives the rotating blades 17 to rotate, forming a cyclone in the small mixing tank 15, which further mixes the initially mixed gas, so that the oxygen and exhaust gas are fully integrated. The fully mixed gas is delivered to the fan-shaped nozzle 6 through the second gas delivery pipe 18, and is evenly sprayed into the combustion chamber 4 for combustion. The exhaust gas generated by combustion is filtered by the dust screen 9 to remove large particulate impurities and is discharged from the outlet pipe 7.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waste gas combustion and decomposition treatment device, comprising a base (1), characterized in that, A combustion chamber (2) is fixedly connected to the top of the base (1). A gas mixing chamber (3) and a combustion chamber (4) are provided inside the combustion chamber (2). A fan (5) is fixedly installed on the top of the base (1). The fan (5) is connected to a fan-shaped nozzle (6) through a double gas mixing structure. An exhaust pipe (7) is connected through the right side of the combustion chamber (2). A fireproof door (8) is provided on the front of the combustion chamber (2) for easy cleaning and maintenance.

2. The waste gas combustion and decomposition treatment device according to claim 1, characterized in that, A dustproof net (9) is fixedly connected to the air outlet on the right side of the inner wall of the combustion chamber (4) by bolts. The dustproof net (9) can block large solid impurities in the exhaust gas.

3. The waste gas combustion and decomposition treatment device according to claim 1, characterized in that, The dual gas mixing structure consists of a vortex mixing component and a cyclone mixing component. The vortex mixing component includes an oxygen input pipe (10) fixedly installed on the blower (5). A large mixing barrel (11) is fixedly installed at the bottom of the inner wall of the gas mixing chamber (3). A spiral guide vane (12) is fixedly connected to the inner wall of the large mixing barrel (11). A gas delivery pipe (13) is connected through the top of the large mixing barrel (11). An exhaust gas input pipe (14) is connected through the outer wall of the large mixing barrel (11).

4. The waste gas combustion and decomposition treatment device according to claim 3, characterized in that, The oxygen input pipe (10) is connected to the bottom of the large mixing tank (11) at one end away from the blower (5). The exhaust gas input pipe (14) is located above the oxygen input pipe (10) at one end near the large mixing tank (11). The other end of the exhaust gas input pipe (14) is connected to an external exhaust gas source.

5. The waste gas combustion and decomposition treatment device according to claim 3, characterized in that, The cyclone mixing assembly includes a small mixing barrel (15) fixedly installed at the bottom of the inner wall of the gas mixing chamber (3). A drive motor (16) is fixedly installed at the bottom of the small mixing barrel (15). A rotating blade (17) is fixedly connected to the output end of the drive motor (16). A gas delivery pipe (18) is connected through the top of the small mixing barrel (15).

6. The waste gas combustion and decomposition treatment device according to claim 5, characterized in that, The end of the second gas supply pipe (18) away from the small mixing tank (15) is connected to the fan-shaped nozzle (6). The outlet of the first gas supply pipe (13) is higher than the rotating blade (17). The drive motor (16) drives the rotating blade (17) to rotate, further mixing the mixed waste gas from the first gas supply pipe (13), and finally discharging it into the combustion chamber (4) through the second gas supply pipe (18).

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