Multi-stage circulating organic waste gas treatment device

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a multi-stage circulation organic waste gas treatment device which comprises a treatment tank, a chemical neutralization mechanism and a combustion treatment mechanism, and the top end of the treatment tank is detachably connected with an end cover; the combustion treatment mechanism comprises a supporting frame arranged at the bottom of the treatment tank, a mounting base is arranged at the end of the supporting frame, an air outlet pipe is arranged in the middle of the mounting base, a combustion nozzle is arranged at the end of the air outlet pipe, a waterproof pipe is arranged outside the mounting base, and a protective cover covering the combustion nozzle is arranged at the top of the mounting base; the chemical neutralization mechanism comprises a liquid inlet nozzle arranged in the middle of the end cover, a liquid guide plate is arranged at the position, close to the interior of the treatment tank, of the liquid inlet nozzle, and an atomization head is arranged on the liquid guide plate. According to the organic waste gas treatment device, gas is subjected to combustion treatment through the combustion nozzle, so that combustible gas in organic waste gas is sufficiently combusted, the combusted waste gas is neutralized through atomized water, and the treatment efficiency of the organic waste gas is improved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a multi-stage circulating organic waste gas treatment device. Background Art

[0002] Organic waste gas treatment refers to the adsorption, filtration and purification of organic waste gas generated in the industrial production process.

[0003] In addition to some toxic and harmful substances and particulate pollutants, organic waste gas usually also includes some flammable and explosive gases. At this time, if conventional waste gas treatment is carried out directly, there may be a possibility of explosion. Therefore, it is necessary to improve the conventional waste gas treatment equipment. Summary of the invention

[0004] The present invention provides a multi-stage circulating organic waste gas treatment device, which solves the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multi-stage circulation organic waste gas treatment device includes a treatment tank, the top of which is detachably connected to an end cap, a chemical neutralization mechanism and a combustion treatment mechanism; the combustion treatment mechanism includes a support frame arranged at the bottom of the treatment tank, a mounting base is arranged at the end of the support frame, an air outlet pipe is arranged in the middle of the mounting base, a burner is arranged at the end of the air outlet pipe, a waterproof pipe is arranged outside the mounting base, and a protective cover covering the burner is arranged on the top of the mounting base; the chemical neutralization mechanism includes a liquid inlet nozzle arranged in the middle of the end cap, a liquid guide plate is arranged near the liquid inlet nozzle inside the treatment tank, and an atomizing head is arranged on the liquid guide plate. A reaction mesh cover is arranged in the middle of the treatment tank.

[0007] As a preferred technical solution of the present invention, the protective cover is a conical structure, and is provided with square vents that only allow gas to pass through.

[0008] As a preferred technical solution of the present invention, the bottom of the treatment tank is provided with an exhaust gas inlet pipe, which is connected to the exhaust pipe through a hose, and the end cover is provided with an exhaust nozzle. A toxic substance detection sensor and an electromagnetic valve for controlling the on-off are provided inside the exhaust nozzle, an exhaust nozzle is provided at the top of the side wall of the treatment tank, an L-shaped exhaust gas inlet pipe is provided inside the waterproof pipe, and the L-shaped exhaust gas inlet pipe is connected to the exhaust nozzle through an air guide pipe, and an exhaust port is provided on the mounting base, and the exhaust ports are distributed relative to the circumference of the burner.

[0009] As a preferred technical solution of the present invention, a deflector assembly is arranged between the waterproof pipe and the inner wall of the treatment tank, a liquid outlet nozzle is arranged at the bottom of the side wall of the treatment tank, a water pump is arranged on the outside of the treatment tank, the water inlet end of the water pump is connected to the liquid outlet nozzle through a liquid outlet pipe, and the water outlet end of the water pump is connected to the liquid inlet nozzle through a liquid inlet pipe.

[0010] As a preferred technical solution of the present invention, the middle part of the end cover is rotatably connected with a rotating sleeve, the rotating sleeve is fixedly connected to the liquid inlet nozzle, the liquid inlet nozzle is relatively rotatably connected to the liquid inlet pipe, a driving motor is arranged on the end cover, the output shaft of the driving motor is fixedly connected to the first bevel gear, the first bevel gear is meshedly connected to the second bevel gear, and the second bevel gear is fixedly connected to the rotating sleeve.

[0011] As a preferred technical solution of the present invention, the deflector assembly is a rotating body structure with a V-shaped cross-section and protruding toward the bottom of the treatment tank. The deflector assembly includes a first liquid guiding slope fixedly connected to the inner wall of the treatment tank and a second liquid guiding slope fixedly connected to the waterproof pipe. A gap is left at the ends of the first liquid guiding slope and the second liquid guiding slope, and reinforcing ribs are arranged between the first liquid guiding slope and the second liquid guiding slope.

[0012] As a preferred technical solution of the present invention, a liquid replenishment pipe and a sewage discharge pipe are provided on the side wall of the treatment tank, and the liquid replenishment pipe is higher than the sewage discharge pipe.

[0013] The present invention has the following benefits:

[0014] The gas is burned through the burner so that the combustible gas in the organic waste gas is fully burned, and the burned waste gas is neutralized by atomized water, which improves the treatment efficiency of the organic waste gas. An air duct is also provided in the treatment device for gas circulation, so that the waste gas that is not fully treated can be repeatedly treated, ensuring the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a multi-stage circulation organic waste gas treatment device.

[0017] Figure 2 This is a schematic diagram of the structure inside a treatment tank in a multi-stage circulating organic waste gas treatment device.

[0018] Figure 3 for Figure 2A is a partial enlarged schematic diagram of the middle part.

[0019] Figure 4 for Figure 2 Front view of .

[0020] Figure 5 The present invention is a schematic diagram of the structure of a flow guide cover assembly in a multi-stage circulating organic waste gas treatment device.

[0021] Figure 6 The present invention is a cross-sectional view of a guide cover assembly in a multi-stage circulating organic waste gas treatment device.

[0022] Figure 7 The figure is a schematic diagram of the structure of a combustion treatment mechanism in a multi-stage circulating organic waste gas treatment device.

[0023] Figure 8 This is a schematic diagram of the structure inside a waterproof pipe in a multi-stage circulating organic waste gas treatment device.

[0024] Fig. 9 for Figure 8 Front view of .

[0025] Fig.10 The present invention is a schematic diagram of the structure of an installation base in a multi-stage circulation organic waste gas treatment device.

[0026] In the figure: 1, treatment tank; 2, end cover; 3, liquid outlet nozzle; 4, liquid outlet pipe; 5, water pump; 6, guide cover assembly; 7, sewage pipe; 8, liquid replenishment pipe; 9, reaction mesh cover; 10, atomizing head; 11, liquid guide plate; 12, liquid inlet nozzle; 13, liquid inlet pipe; 14, chemical neutralization mechanism; 15, second bevel gear; 16, drive motor; 17, first bevel gear; 18, first liquid guide slope; 19, second liquid guide slope; 20, reinforcing rib; 21, exhaust gas inlet pipe; 22, L-shaped inlet pipe; 23, air guide pipe; 24, hose; 25, air outlet pipe; 26, support frame; 27, mounting base; 28, protective cover; 29, exhaust nozzle; 30, air outlet nozzle; 31, combustion treatment mechanism; 32, square vent; 33, combustion nozzle; 34, waterproof pipe; 35, air outlet; 36, rotating sleeve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In one embodiment, see Figure 1-Figure 10A multi-stage circulation organic waste gas treatment device includes a treatment tank 1, the top of the treatment tank 1 is detachably connected with an end cover 2, in order to stabilize the treatment tank 1, a support foot is arranged on the lower surface of the treatment tank 1, the treatment tank 1 is a columnar container with an open top, the end cover 2 is fixed to the top of the treatment tank 1 by threaded connection or bolt connection, the treatment tank 1 and the end cover 2 form a closed container, and the organic waste gas is treated in the internal space; it also includes a chemical neutralization mechanism 14 and a combustion treatment mechanism 31;

[0029] The combustion treatment mechanism 31 includes a support frame 26 fixedly connected to the bottom of the treatment tank 1. The support frame 26 is a U-shaped structure with an opening downward. A horizontal and circular mounting base 27 is provided at the upper end of the support frame 26. A waterproof tube 34 is provided on the periphery of the mounting base 27. The waterproof tube 34 is a cylindrical structure. The upper end of the waterproof tube 34 is connected to the bottom surface of the mounting base 27, and the lower end of the waterproof tube 34 is connected to the bottom of the treatment tank 1. The support frame 26 is arranged inside the waterproof tube 34 so that the inside of the waterproof tube 34 presents a cavity structure. An air outlet pipe 25 is vertically provided in the middle of the mounting base 27. A burner 33 is provided at the upper end of the air outlet pipe 25. The burner 33 is provided with an anti-backfire structure. A protective cover 28 is provided above the mounting base 27. The protective cover 28 presents a conical structure with an opening downward.

[0030] The chemical neutralization mechanism 14 includes a liquid inlet nozzle 12 vertically arranged in the middle of the end cover 2, the lower end of the liquid inlet nozzle 12 is fixedly connected to the ends of five horizontally arranged liquid guide plates 11, the liquid guide plates 11 are distributed relative to the central circumference of the liquid inlet nozzle 12, and a plurality of atomizing heads 10 are arranged at the lower end of the liquid guide plate 11. The aqueous solution containing the chemical neutralizing agent can be dispersed to the middle of the liquid guide plate 11 through the liquid inlet nozzle 12, and the aqueous solution is transformed into water mist through the atomizing head 10 and falls into the interior of the processing tank 1 to react with the gas in the processing tank 1. The middle part of the processing tank 1 is provided with The reaction mesh cover 9 is arranged below the atomizing head 10. When the water vapor generated by the atomizing head 10 falls, a water film can be formed on the surface of the reaction mesh cover 9, thereby separating the lower space from the upper space, so that the gas needs to pass through the water film when rising, so that the gas and the water film are fully mixed and dissolved, thereby improving the neutralization effect. In addition, the reaction mesh cover 9 can also be woven with metal wires, and electricity is applied to the protective mesh cover to adsorb particulate matter in the exhaust gas through the effect of electrostatic adsorption, and produce water droplets after combining with water vapor, thereby improving the treatment effect of particulate matter.

[0031] In one aspect of this embodiment, the protective cover 28 is provided with square vent holes 32 that only allow gas to pass through. In addition, the size of the square vent 32 is relatively small. Due to the surface tension of the water droplets, even if the water mist falls on the upper surface of the protective cover 28, the water droplets cannot pass through the square vent 32 to enter the interior of the protective cover 28 and affect the combustion of the lower burner 33. However, the exhaust gas generated after the combustion of the lower burner 33 can move upward through the square vent 32, so that the square vent 32 can isolate the water body and facilitate the upward flow of the gas. If the square vent 32 is large enough for the gas to move upward, the lower side of the protective cover 28 and the mounting base 27 can be completely sealed, so that the gas can only move upward through the square vent 32. If the gas flow rate is large, the exhaust gas cannot be effectively discharged only by relying on the square vent 32. The protective cover 28 can be lifted up to leave a certain gap between the protective cover 28 and the mounting base 27 so that the gas can be discharged through the gap. However, it is necessary to ensure that the diameter of the lower side of the protective cover 28 is larger than the diameter of the mounting base 27, so that when the water body slides down along the protective cover 28, it will not fall onto the mounting base 27 and affect the gas combustion of the burner 33.

[0032] In one case of the present embodiment, a waste gas inlet pipe 21 is vertically arranged at the bottom of the treatment tank 1, and the waste gas inlet pipe 21 is connected to the outlet pipe 25 through a hose 24, and two joints are arranged at the lower end of the waste gas inlet pipe 21, one joint is connected to the generator of the organic waste gas, and the other joint is connected to the oxygen gas source, so that the organic waste gas and oxygen can be mixed after entering the interior of the waste gas inlet pipe 21, thereby increasing the oxygen content of the mixed gas, facilitating the subsequent combustion treatment of the organic waste gas, and in order to ensure sufficient combustion, the lower end of the waste gas inlet pipe 21 can also be arranged with three joints, and the third joint is directly connected to a combustible gas such as hydrogen, so that even if the organic waste gas The combustible gas content is low, but the combustible gas content can be increased by additional means to ensure effective combustion treatment, and in order to facilitate remote control, each joint at the lower end of the exhaust gas inlet pipe 21 is provided with a solenoid valve to control the gas flow rate, thereby realizing the proportional adjustment of different gas components, and an ignition device is provided inside the burner 33 to facilitate external control of the normal combustion of the burner 33, and at the same time, an outlet nozzle 30 is provided on the upper surface of the end cover 2, and the outlet nozzle 30 can be connected to a subsequent gas treatment device, for example, it can be connected to a related activated carbon adsorption device, and according to different treatment steps, the finally treated gas can meet the direct emission standard.

[0033] In one case of the present embodiment, a toxic substance detection sensor and an electromagnetic valve for controlling on and off are arranged inside the air outlet nozzle 30, and the toxic substance detection sensor can detect in real time whether the exhaust gas after combustion treatment and chemical treatment contains combustible gas and toxic gas, and an exhaust nozzle 29 is arranged at the upper end of the right side wall of the treatment tank 1, and an L-shaped exhaust gas inlet pipe 22 is arranged at the bottom of the treatment tank 1, and the upper end of the L-shaped exhaust gas inlet pipe 22 extends into the interior of the waterproof pipe 34, and the waterproof pipe 34 is connected to the exhaust nozzle 29 through the air guide pipe 23, and a circle of air outlets 35 are arranged on the mounting base 27, and the air outlets 35 are symmetrically arranged relative to the circumference of the burner nozzle 33. When the detection sensor inside the air outlet nozzle 30 detects that the discharged gas still contains a large proportion of combustible gas or toxic gas, the air outlet nozzle 30 is closed by the electromagnetic valve. At this time, since the burner nozzle 33 below is burning, the heated gas will flow upward, thereby making the burner nozzle 3 3 The pressure of the accessories is relatively low, forming a negative pressure to draw air upward, which makes the gas in the waterproof pipe 34 flow upward. After the gas rises and is cooled by the water mist, it will circulate again through the exhaust nozzle 29, the air guide pipe 23 and the L-shaped exhaust gas inlet pipe 22. The gas discharged through the outlet 35 will be re-ignited when passing through the burner nozzle 33, and will pass through the water mist above for secondary chemical neutralization treatment when continuing to flow upward, thereby achieving the effect of secondary treatment. However, the secondary treatment is only a backup measure in case of an emergency. In normal state, the burner nozzle 33 outputs the organic waste gas through the component ratio of different gas sources, so that the organic waste gas has been fully burned, and the water mist above has also fully reacted with the waste gas after combustion, so that the gas can be discharged directly through the outlet nozzle 30. At this time, since the upper outlet nozzle 30 can be exhausted normally, the pressure at the outlet nozzle 30 will be relatively low. At this time, the gas will not enter the exhaust nozzle 29, and the entire device can carry out the waste gas treatment process normally.

[0034] In one case of the present embodiment, a deflector assembly 6 is arranged between the waterproof pipe 34 and the inner wall of the treatment tank 1, so that the water mist dripping from above will gather to the bottom of the treatment tank 1 along the deflector assembly 6, and a liquid outlet nozzle 3 is arranged at the upper position of the left side wall of the treatment tank 1. The height of the liquid outlet nozzle 3 is lower than the deflector assembly 6, but the liquid outlet nozzle 3 is still at a certain distance from the bottom of the treatment tank 1. Therefore, the particulate matter brought down by the water mist will be deposited at the bottom of the treatment tank 1 and will not be discharged through the liquid outlet nozzle 3. A water pump 5 is arranged at the lower position of the left outer wall of the treatment tank 1, and the water inlet at the lower end of the water pump 5 is connected to the liquid outlet nozzle 3 through the liquid outlet pipe 4, and the water outlet at the upper end of the water pump 5 is connected to the liquid inlet nozzle 12 through the liquid inlet pipe 13, so that the water pump 5 provides power, so that the water body below the treatment tank 1 can be transferred to the liquid inlet nozzle 12 for the chemical neutralization step again, thereby realizing the effect of water circulation, and the water pump 5 can also provide effective water pressure to the atomizing head 10. In order to enable the atomizing head 10 to spray water mist in all spaces in the treatment tank 1, the rotating sleeve 36 can be rotatably connected to the middle part of the end cover 2, and the middle part of the rotating sleeve 36 is fixedly connected to the liquid inlet nozzle 12. A rotatable joint is provided at the upper end of the liquid inlet nozzle 12 to be connected to the liquid outlet pipe 4, so that the rotating sleeve 36 can drive the liquid inlet nozzle 12 to rotate, thereby making the atomizing head 10 below rotate around the center of the treatment tank 1 along with the liquid guide plate 11, thereby improving the uniformity of the water mist, and a driving motor 16 is provided on the left side of the upper end of the end cover 2, and the output shaft of the driving motor 16 is fixedly connected to the first bevel gear 17, the first bevel gear 17 is meshedly connected to the second bevel gear 15, and the second bevel gear 15 is fixedly connected to the upper end of the rotating sleeve 36, and the driving motor 16 drives the liquid inlet nozzle 12 to rotate through gear transmission.

[0035] In one case of the present embodiment, the deflector assembly 6 is a rotating body structure with a V-shaped cross-section and protruding toward the bottom of the treatment tank 1. The deflector assembly 6 includes a first liquid guiding slope 18 fixedly connected to the inner wall of the treatment tank 1 and a second liquid guiding slope 19 fixedly connected to the waterproof pipe 34. A gap is left at the ends of the first liquid guiding slope 18 and the second liquid guiding slope 19, and a reinforcing rib 20 is arranged between the first liquid guiding slope 18 and the second liquid guiding slope 19. That is to say, the water mist will slide down to the bottom of the treatment tank 1 along the first liquid guiding slope 18 and the second liquid guiding slope 19, and the height of the liquid outlet nozzle 3 is higher than the lower ends of the first liquid guiding slope 18 and the second liquid guiding slope 19. During normal operation, the height of the water body below the treatment tank 1 is kept higher than the lower ends of the first liquid guiding slope 18 and the second liquid guiding slope 19. Therefore, after the water body slides down and enters the bottom of the treatment tank 1, the water flow will only impact the bottom, but the upper layer of the water body will not fluctuate widely due to the stabilizing effect of the first liquid guiding slope 18 and the second liquid guiding slope 19, so that the upper layer of the water body is in a clear state, which is convenient for the extraction and treatment of the water during the circulation of the liquid outlet nozzle 3, and a filter net can also be set at the end of the liquid outlet nozzle 3 to prevent particulate matter from entering the circulating water and clogging the atomizing head 10, and a liquid replenishment pipe 8 and a sewage pipe 7 are set on the right side wall of the treatment tank 1. The sewage pipe 7 is located at the bottom of the treatment tank 1 for discharging sewage that has completed chemical neutralization, and the liquid replenishment pipe 8 is located at the top, and the chemical agent is replenished through the liquid replenishment pipe 8.

[0036] During the implementation of this embodiment, the exhaust nozzle 29 is connected to the subsequent gas treatment equipment, and the exhaust gas inlet pipe 21 is connected to the relevant exhaust gas generating device and the oxygen gas source. Water mixed with the neutralizing agent is added to the interior of the treatment tank 1 through the liquid replenishing pipe 8, and the water pump 5 is started. The water pump 5 generates water pressure to make the atomizing head 10 spray water mist. At this time, the burner nozzle 33 is opened and ignited, and the organic waste gas is burned through the burner nozzle 33. The waste gas generated by the combustion passes through the square vent 32 and flows upward. The waste gas contacts the water mist above, and the particulate matter in the waste gas contacts the water vapor to produce water droplets falling. At the same time, the harmful substances in the waste gas contact the chemical agents in the water mist to achieve the effect of chemical neutralization. Finally, the gas that has completed the combustion treatment and chemical treatment is discharged through the exhaust nozzle 29.

[0037] The present invention is applicable to a multi-stage circulation organic waste gas treatment device, which uses a burner 33 to burn the gas so that the combustible gas in the organic waste gas is fully burned, and the burned waste gas is neutralized by atomized water, thereby improving the treatment efficiency of the organic waste gas. In addition, an air guide pipe 23 is also provided in the treatment device for gas circulation, so that the waste gas that is not fully treated can be repeatedly treated, thereby ensuring the treatment effect.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A multi-stage circulating organic waste gas treatment device, comprising a treatment tank, the top of which is detachably connected to an end cap, characterized in that: It also includes chemical neutralization agencies and combustion treatment agencies; The combustion treatment mechanism comprises a support frame arranged at the bottom of the treatment tank, a mounting base is arranged at the end of the support frame, an air outlet pipe is arranged in the middle of the mounting base, a burner is arranged at the end of the air outlet pipe, a waterproof pipe is arranged outside the mounting base, and a protective cover covering the burner is arranged on the top of the mounting base; The chemical neutralization mechanism comprises a liquid inlet nozzle arranged in the middle of the end cover, a liquid guide plate is arranged near the liquid inlet nozzle and an atomizing head is arranged on the liquid guide plate.

2. A multi-stage circulation organic waste gas treatment device according to claim 1, characterized in that: A reaction screen is arranged in the middle of the processing tank.

3. The multi-stage circulation organic waste gas treatment device according to claim 1 is characterized in that: The protective cover is a conical structure, and is provided with square vent holes that only allow gas to pass through.

4. The multi-stage circulation organic waste gas treatment device according to claim 1 is characterized in that: The bottom of the treatment tank is provided with an exhaust gas inlet pipe, the exhaust gas inlet pipe is connected to the exhaust pipe through a hose, and the end cover is provided with an exhaust nozzle.

5. A multi-stage circulation organic waste gas treatment device according to claim 4, characterized in that: A toxic substance detection sensor and an on-off control solenoid valve are arranged inside the air outlet nozzle, an exhaust nozzle is arranged at the top of the side wall of the treatment tank, an L-shaped exhaust gas inlet pipe is arranged inside the waterproof pipe, the L-shaped exhaust gas inlet pipe is connected to the exhaust nozzle through an air guide pipe, and an air outlet is arranged on the mounting base, and the air outlet is distributed relative to the circumference of the burner nozzle.

6. The multi-stage circulation organic waste gas treatment device according to claim 1 is characterized in that: A flow guide cover assembly is arranged between the waterproof pipe and the inner wall of the treatment tank, a liquid outlet nozzle is arranged at the bottom of the side wall of the treatment tank, a water pump is arranged on the outside of the treatment tank, the water inlet end of the water pump is connected to the liquid outlet nozzle through a liquid outlet pipe, and the water outlet end of the water pump is connected to the liquid inlet nozzle through a liquid inlet pipe.

7. The multi-stage circulation organic waste gas treatment device according to claim 6 is characterized in that: The middle part of the end cover is rotatably connected with a rotating sleeve, the rotating sleeve is fixedly connected to the liquid inlet nozzle, the liquid inlet nozzle is relatively rotatably connected to the liquid inlet pipe, a driving motor is arranged on the end cover, the output shaft of the driving motor is fixedly connected to the first bevel gear, the first bevel gear is meshedly connected to the second bevel gear, and the second bevel gear is fixedly connected to the rotating sleeve.

8. The multi-stage circulation organic waste gas treatment device according to claim 6 is characterized in that: The deflector assembly is a rotating body structure with a V-shaped cross-section and protruding toward the bottom of the treatment tank. The deflector assembly includes a first liquid guiding slope fixedly connected to the inner wall of the treatment tank and a second liquid guiding slope fixedly connected to the waterproof pipe. A gap is left at the ends of the first liquid guiding slope and the second liquid guiding slope, and reinforcing ribs are arranged between the first liquid guiding slope and the second liquid guiding slope.

9. The multi-stage circulation organic waste gas treatment device according to claim 1, characterized in that: The side wall of the treatment tank is provided with a liquid replenishing pipe and a sewage discharge pipe, and the liquid replenishing pipe is higher than the sewage discharge pipe.

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