Petrochemical waste gas re-combustion purification device

Abstract

The petrochemical waste gas re-combustion purification device comprises a box body, an igniter, a gas inlet, a gas outlet pipe and a screen, supporting legs are fixedly welded to the four corners of the bottom of the box body, the gas inlet is formed in the right side wall of the box body, the igniter is fixedly installed in the center of the top end of the box body, and an ignition nozzle is fixedly installed at the top end of the inner side of the box body; the igniter is communicated with the ignition nozzle, an upper filter screen is detachably installed on the inner side wall of the box body, a lower filter screen is detachably installed on the inner side wall of the box body below the upper filter screen, a first exhaust fan is installed at the bottom of the box body in an embedded mode, a branch air duct is formed above the first exhaust fan, and the top end of the branch air duct is communicated with the interior of the box body. According to the device, particles and impurities in waste gas are blown and lifted through the first fan, so that the particles and the impurities are closer to an ignition nozzle, sufficient combustion is achieved, and the combustion efficiency of the device is improved.

Description

Technical Field

[0001] The present application relates to the field of chemical waste gas treatment equipment, and specifically to a petrochemical waste gas re-combustion purification device. Background Art

[0002] Petrochemical waste gas refers to various waste gases generated in the petrochemical production process, mainly including hydrocarbon gases, odorous gases, sulfur-containing compounds, chlorine-containing compounds, etc. These waste gases will not only pollute the atmospheric environment, but also cause serious harm to human health and the ecological environment. The current waste gas treatment usually adopts the combustion method, but there is no way to completely burn it, resulting in residual waste gas.

[0003] Application No. 202321646388.3 discloses a petrochemical waste gas re-combustion purification device, including a blower, an air blowing pipe, a burner, an air intake pipe, a dust collection net and an exhaust pipe, etc., to discharge the petroleum waste gas through the air intake pipe into a primary waste gas combustion furnace for combustion. At this time, in order to make the waste gas burn fully, the blower is started to spray a gas into the primary waste gas combustion furnace through the air blowing pipe to assist combustion. After combustion, the waste gas is discharged into the combustible particle combustion filter tank through a connecting pipe. The incompletely burned particles are filtered through a glass fiber filter plate and fall on the dust collection net. At this time, the burner burns The particles on the dust collection net continue to burn, and the exhaust gas continues to burn in the combustible particle combustion filter tank, and then is discharged into the secondary exhaust gas combustion furnace through the connecting pipe, and the residual combustible gas in the exhaust gas continues to burn. After three-stage combustion, it is discharged through the exhaust pipe and continues to the next purification process. This solves the problem that the re-combustion and purification of petrochemical exhaust gas on the current market cannot fully burn the exhaust gas, and still contains a large amount of combustible exhaust gas. The impact of exhaust on the environment cannot be underestimated. At the same time, the impurities and combustible particles after combustion are not completely burned, and the discharge into the air is more harmful.

[0004] However, in use, there are the following defects:

[0005] Since the device is equipped with multiple combustion furnaces to burn waste, during the transportation process, it cannot be guaranteed that all particles and impurities enter the next combustion furnace, resulting in residues, which is not only troublesome to clean up, but also affects the device's purification efficiency of waste gas. Utility Model Content

[0006] The purpose of the present application is to provide a petrochemical waste gas re-combustion purification device, which solves the problem raised in the background technology that since the device is equipped with multiple combustion furnaces to burn the waste, during the transportation process, it cannot be guaranteed that all particles and impurities enter the next combustion furnace, thus resulting in residues, which is not only troublesome to clean up, but also affects the purification efficiency of the device for the waste gas.

[0007] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a petrochemical waste gas re-combustion purification device, comprising a box body, an igniter, an air inlet, an air outlet pipe and a screen, the bottom four corners of the box body are fixedly welded with supporting feet, the right side wall of the box body is provided with an air inlet, an igniter is fixedly installed at the center of the top of the box body, and an ignition nozzle is fixedly installed at the inner top of the box body, the igniter and the ignition nozzle are connected, an upper filter is detachably installed on the inner inner wall of the box body, a lower filter is detachably installed on the inner inner wall of the box body below the upper filter, a No. 1 exhaust fan is inlaid on the bottom of the box body, and a branch air duct is provided above the No. 1 exhaust fan, and the top of the branch air duct is connected to the inside of the box body.

[0008] In this technical solution, the exhaust gas is discharged into the box through the air inlet, ignited by the igniter and the ignition nozzle, thereby igniting the exhaust gas and burning it, and the blower can provide oxygen support for the combustion in the box. After the exhaust gas enters the box, the larger particles and impurities in it will be intercepted by the upper filter with slightly larger pores, so that it is closer to the flamethrower and can be burned faster, thereby improving the combustion efficiency of the particles and impurities in the exhaust gas, and the lower filter can prevent particles and impurities from entering the branch air duct and causing blockage. The air duct can assist in the combustion of particles and impurities in the exhaust gas. The No. 1 exhaust fan blows air upward from the branch air duct, which can make the particulate impurities that fall on the upper filter and the lower filter due to gravity float up again, increasing the contact area with the air, making it more convenient to burn them, and further improving the combustion efficiency of the device. After the combustion is completed, open the valve and start the No. 2 exhaust fan. Under the action of air pressure, the exhaust gas in the box is sucked away along the outlet pipe. The screen can prevent the particulate impurities in the box from being sucked away together. Finally, open the door and clean the box.

[0009] As an optional solution of the technical solution of the present application, a blower is fixedly installed on the right side wall of the box, and a power interface is fixedly connected to the lower part of the left side wall of the box.

[0010] As an optional solution of the technical solution of the present application, a screen is detachably installed on the top of the inner part of the box on the right side of the ignition nozzle, a valve is fixedly installed on the top of the box above the screen, the top of the valve is connected to an air outlet pipe, and the bottom of the valve is connected to the inside of the box.

[0011] As an optional solution of the technical solution of the present application, a No. 2 exhaust fan is fixedly installed on the left side wall of the exhaust pipe, and a battery is fixedly installed on the outer side wall of the No. 2 exhaust fan.

[0012] As an optional solution of the technical solution of the present application, a box door is detachably installed on the front side wall of the box body, and a heat insulation board is movably installed on the inner side wall of the box door.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present application can burn particulate impurities in the exhaust gas faster through the flamethrower, the flamethrower and the upper filter. Larger particles and impurities will be intercepted by the upper filter with slightly larger pores, so that they are closer to the flamethrower. After the flamethrower ignites the exhaust gas, they can be burned faster, thereby improving the combustion efficiency of particles and impurities in the exhaust gas.

[0015] 2. The present application can assist in the combustion of particles and impurities in the exhaust gas through the No. 1 exhaust fan and the branch air duct. The No. 1 exhaust fan blows air upward from the branch air duct, which can make the particulate impurities that fall on the upper filter and the lower filter due to gravity float up again, increasing the contact area with the air, making it easier to burn them and further improving the combustion efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the petrochemical waste gas re-combustion purification device;

[0017] Figure 2 This is a front view cross-sectional schematic diagram of the petrochemical waste gas re-combustion purification device.

[0018] Among them, 1. Box body; 2. Support feet; 3. Power interface; 4. No. 1 exhaust fan; 5. Branch air duct; 6. Lower filter; 7. Upper filter; 8. Blower; 9. Air inlet; 10. Ignition; 11. Ignition nozzle; 12. Valve; 13. Exhaust pipe; 14. No. 2 exhaust fan; 15. Battery; 16. Box door; 17. Heat insulation board; 18. Screen. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, they are further explained below in conjunction with specific implementation methods.

[0020] like Figure 1 As shown, a petrochemical waste gas re-combustion purification device includes a box body 1, an igniter 10, an air inlet 9, an air outlet pipe 13 and a screen 18. The four corners of the bottom of the box body 1 are fixedly welded with supporting legs 2, and the right side wall of the box body 1 is provided with an air inlet 9. The inner wall of the box body 1 is detachably mounted with an upper filter screen 7, and the inner wall of the box body 1 below the upper filter screen 7 is detachably mounted with a lower filter screen 6. The gap of the lower filter screen 6 is very small, which can prevent particles and impurities from entering the branch air duct 5 below.

[0021] like Figure 1 As shown, a No. 2 exhaust fan 14 is fixedly mounted on the left side wall of the air outlet pipe 13 , and a battery 15 is fixedly mounted on the outer side wall of the No. 2 exhaust fan 14 , and the battery 15 provides power for the No. 2 exhaust fan 14 .

[0022] like Figure 1 As shown, a box door 16 is detachably mounted on the front side wall of the box body 1, and a heat insulation board 17 is movably mounted on the inner side wall of the box door 16. The heat insulation board 17 can prevent the box door 16 from being burned by high temperature.

[0023] like Figure 2 As shown, a screen 18 is detachably installed on the top of the box body 1 on the right side of the ignition nozzle 11, and a valve 12 is fixedly installed on the top of the box body 1 above the screen 18. The top of the valve 12 is connected to an air outlet pipe 13, and the bottom of the valve 12 is connected to the inside of the box body 1. The screen 18 can prevent particles and impurities from being sucked away when the No. 2 exhaust fan 14 inhales air.

[0024] like Figure 2 As shown, a blower 8 is fixedly installed on the right side wall of the box 1, and a power interface 3 is fixedly connected to the lower part of the left side wall of the box 1, and the power interface 3 supplies power to the No. 1 exhaust fan 4 and the blower 8.

[0025] like Figure 2 As shown, an igniter 10 is fixedly installed at the center of the top of the box body 1, and an ignition nozzle 11 is fixedly installed at the inner top of the box body 1, and the igniter 10 and the ignition nozzle 11 are connected.

[0026] like Figure 2 As shown, a No. 1 exhaust fan 4 is embedded and installed at the bottom of the box body 1, and a branch air duct 5 is opened above the No. 1 exhaust fan 4, and the top end of the branch air duct 5 is connected to the interior of the box body 1.

[0027] In actual use, the exhaust gas is discharged into the box body 1 through the air inlet 9, and ignited by the igniter 10 and the ignition nozzle 11, so as to ignite the exhaust gas and burn it, and the blower 8 can provide oxygen support for the combustion in the box body 1. After the exhaust gas enters the box body 1, the larger particles and impurities in the exhaust gas will be intercepted by the upper filter screen 7 with slightly larger pores, so that it is closer to the flamethrower and can be burned faster, thereby improving the combustion efficiency of the particles and impurities in the exhaust gas, and the lower filter screen 6 can prevent the particles and impurities from entering the branch air duct 5 and causing blockage. , which can assist in the combustion of particles and impurities in the exhaust gas. The No. 1 exhaust fan 4 blows air upward from the branch air duct 5, which can make the particle impurities that fall on the upper filter 7 and the lower filter 6 due to gravity float up again, increasing the contact area with the air, making it more convenient to burn them, and further improving the combustion efficiency of the device. After the combustion is completed, open the valve 12 and start the No. 2 exhaust fan 14. Under the action of air pressure, the exhaust gas in the box 1 is sucked away along the outlet pipe 13, and the screen 18 can prevent the particle impurities in the box 1 from being sucked away together. Finally, open the box door 16 and clean the box 1.

Claims

1. A petrochemical waste gas re-combustion purification device, characterized in that: The invention comprises a box body (1), an igniter (10), an air inlet (9), an air outlet pipe (13) and a screen (18), wherein the four corners of the bottom of the box body (1) are fixedly welded with supporting legs (2), the right side wall of the box body (1) is provided with an air inlet (9), the igniter (10) is fixedly installed at the center of the top of the box body (1), and the igniter nozzle (11) is fixedly installed at the inner top of the box body (1), the igniter (10) and the igniter nozzle (11) are connected, an upper filter (7) is detachably installed on the inner wall of the box body (1), and a lower filter (6) is detachably installed on the inner wall of the box body (1) below the upper filter (7), a No. 1 exhaust fan (4) is embedded and installed on the bottom of the box body (1), and a branch air duct (5) is provided above the No. 1 exhaust fan (4), and the top of the branch air duct (5) is connected to the inside of the box body (1).

2. A petrochemical waste gas re-combustion purification device according to claim 1, characterized in that: A blower (8) is fixedly mounted on the right side wall of the box body (1), and a power supply interface (3) is fixedly connected to the lower part of the left side wall of the box body (1).

3. A petrochemical waste gas re-combustion purification device according to claim 1, characterized in that: A screen (18) is detachably mounted on the top of the box body (1) on the right side of the ignition nozzle (11), a valve (12) is fixedly mounted on the top of the box body (1) above the screen (18), the top of the valve (12) is connected to an air outlet pipe (13), and the bottom of the valve (12) is connected to the inside of the box body (1).

4. A petrochemical waste gas re-combustion purification device according to claim 3, characterized in that: A second exhaust fan (14) is fixedly mounted on the left side wall of the air outlet pipe (13), and a battery (15) is fixedly mounted on the outer side wall of the second exhaust fan (14).

5. The petrochemical waste gas re-combustion purification device according to claim 1, characterized in that: A box door (16) is detachably mounted on the front side wall of the box body (1), and a heat insulation board (17) is movably mounted on the inner side wall of the box door (16).

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