A multi-cycle exhaust gas treatment device

Abstract

The application discloses a kind of multi-cycle waste gas treatment devices, comprising: waste gas collection system, for collecting generated waste gas, and it is guided, transported to processing device;Processing device, for multiple cycle processing waste gas, to remove harmful substances and particulate matter in waste gas;Control system, for monitoring and controlling the operating state of the processing device, according to waste gas composition and processing effect, automatically adjust the working parameters of processing device, to realize the best waste gas treatment effect.In actual industrial production, the composition and pollutant component of waste gas may change, including concentration, type and catalyst corresponding reaction activity etc.Processing device can adapt to these changes by multiple cycle processing, and simultaneously process multiple pollutants, to maintain efficient waste gas purification effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas separation, more particularly, the present application relates to a multi-cycle waste gas treatment device. BACKGROUND

[0002] Waste gas treatment is an important environmental protection issue in industrial production. Traditional waste gas treatment devices have low treatment efficiency, high energy consumption, and high operating costs.

[0003] Waste gas treatment also faces challenges in large-scale and actual industrial applications. In large-scale industrial production environments, the scalability, economy, and operational stability of the device need to be addressed. At the same time, customized designs should be made according to the characteristics and treatment needs of waste gas in different industrial fields to provide the best waste gas treatment solutions.

[0004] These technical problems need to be solved through in-depth research and technological innovation, so how to make waste gas treatment more efficient, reliable and sustainable is the technical problem to be solved by the present application. Therefore, it is necessary to propose a multi-cycle waste gas treatment device to at least partially solve the problems existing in the prior art. SUMMARY

[0005] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the detailed description section. The summary section of the present application does not mean to attempt to limit the key features and necessary technical features of the claimed technical solution, nor does it mean to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, the present application provides a multi-cycle waste gas treatment device, comprising: a waste gas collection system for collecting generated waste gas and guiding and transporting it to a treatment device;

[0007] The treatment device is used for multi-cycle treatment of waste gas to remove harmful substances and particulate matter in the waste gas.

[0008] The control system is used to monitor and control the operating state of the treatment device, and automatically adjust the working parameters of the treatment device according to the composition of the waste gas and the treatment effect, so as to achieve the best waste gas treatment effect.

[0009] Preferably, the treatment device is composed of multiple circulation systems, each of which is composed of a waste gas treatment unit for adsorption, combustion and catalysis of waste gas, which is in communication with the outlet end of the waste gas collection system; a circulation fan for circulating waste gas treatment, which is arranged on the top of the waste gas treatment unit and in communication with the inlet end of the waste gas treatment unit; and a shunt filter for filtering particulate matter, which is arranged at the outlet end of the waste gas treatment unit and in communication with the circulation fan through a gas pipe, and the outlet end of the shunt filter is selectively in communication with the inlet end of the waste gas treatment unit of the next circulation system or directly communicates with the outside for emission, and the control system is used for monitoring and controlling the waste gas treatment unit, the circulation fan and the shunt filter.

[0010] Preferably, the multiple circulation systems respectively constitute a primary circulation and a secondary circulation, the outlet end of the waste gas collection system is connected with the inlet end of the primary circulation, the outlet end of the primary circulation is connected with the inlet end of the secondary circulation after converging through a primary converging device, and the outlet end of the secondary circulation is emitted after converging through a secondary converging device.

[0011] Preferably, the primary circulation is composed of at least two circulation systems, the secondary circulation is composed of at least two circulation systems, the outlet end of the waste gas collection system is in communication with each of the waste gas treatment units in the primary circulation, the outlet end of each of the shunt filters in the primary circulation is in communication with the primary converging device, the outlet end of the primary converging device is in communication with each of the waste gas treatment units in the secondary circulation, the outlet end of each of the shunt filters in the secondary circulation is in communication with the secondary converging device, and the outlet end of the secondary converging device is in communication with the outside.

[0012] Preferably, the outlet end of the waste gas collection system is provided with a gas delivery pipe, the outlet end of the gas delivery pipe is in communication with the inlet end of the waste gas treatment unit through a spray pipe, the inlet end of the circulation fan is in communication with the gas pipe, the outlet end of the circulation fan is in communication with the spray pipe through a centrifugal pipe, the gas delivery pipe is arranged in a vertical direction, the centrifugal pipe is spirally wound on the outer wall of the gas delivery pipe, the outlet end of the centrifugal pipe is located on the side wall of the spray pipe, and the side wall of the spray pipe is provided with a water pipe interface for connecting with a water supply system.

[0013] Preferably, a transition pipe is arranged at the communication position of the centrifugal pipe and the spray pipe, the transition pipe is located on the outer wall of the spray pipe and arranged in the axial direction of the spray pipe, and the communication position of the centrifugal pipe and the transition pipe is higher than the communication position of the transition pipe and the spray pipe.

[0014] Preferably, the inner wall of the spray pipe is provided with a flow guide and settling device, which is annular, and has two guide pieces with a gap between them, one of the guide pieces is folded upwards along the flow guide, and the other is folded downwards along the flow guide, the flow guide is located above the communication between the transition pipe and the spray pipe, and the water pipe interface of the spray pipe is located below the flow guide.

[0015] Preferably, the circulating fan is composed of a turbine blade arranged in the housing and located at the top of the housing, and a motor arranged outside the housing and used to drive the turbine blade to rotate, the air pipe is in communication with the side wall of the housing, and the communication is opposite to the turbine blade, and the bottom of the housing is in communication with the air inlet end of the waste gas treatment unit.

[0016] Preferably, the side wall of the housing is provided with a guide pipe, one end of the guide pipe is in communication with the side wall of the housing, and the communication is opposite to the turbine blade, and the other end of the guide pipe is in communication with the air pipe.

[0017] Preferably, the guide pipe is provided with a communication pipe, one end of the communication pipe is in communication with the side wall of the housing, and the communication is below the turbine blade, and the other end of the communication pipe is selectively in communication with the inside of the guide pipe or with the water supply system.

[0018] Compared with the prior art, the present application has at least the following beneficial effects:

[0019] When the waste gas is treated, the treatment device performs multiple cycles of waste gas treatment, which can improve the efficiency and quality of waste gas treatment. And because the treated waste gas is recycled, energy consumption can be effectively reduced, processing cost can be reduced, harmful substances can be effectively removed through multiple cycle processing, and environmental pollution caused by waste gas can be reduced to achieve the effect of energy saving and environmental protection. And because the treatment device uses multiple cycle processing, the number of cycles and the number of devices in the treatment device can be flexibly adjusted according to the composition of the waste gas and the treatment requirements to adapt to different waste gas treatment needs. Through the control system, the running state of the treatment device can be monitored and controlled, and the working parameters of the treatment device can be automatically adjusted according to the composition of the waste gas and the treatment effect to achieve stable, reliable and optimal waste gas treatment effect.

[0020] In actual industrial production, the composition and pollutant components of waste gas may change, including concentration, type and reaction activity of catalysts. The treatment device can adapt to these changes through multiple cycle processing and simultaneously treat multiple pollutants to maintain high efficiency of waste gas purification.

[0021] The multi-cycle waste gas treatment device, other advantages, objects and features of the present application will be embodied in part by the following description, and will be understood by those skilled in the art through the study and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application together with the embodiments thereof, and explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0023] Figure 1 The structure schematic diagram of the multi-cycle waste gas treatment device.

[0024] Figure 2 The structure schematic diagram of the centrifugal tube in the multi-cycle waste gas treatment device.

[0025] Figure 3 The cross-sectional view of the centrifugal tube in the multi-cycle waste gas treatment device.

[0026] Figure 4 The cross-sectional view of the circulating fan in the multi-cycle waste gas treatment device.

[0027] In the figure: 1 waste gas treatment unit, 2 circulating fan, 21 shell, 22 turbine blade, 23 guide pipe, 24 communication pipe, 3 shunt filter, 4 air pipe, 5 primary circulation, 51 primary converging device, 6 secondary circulation, 61 secondary converging device, 7 air supply pipe, 8 spray pipe, 81 water pipe interface, 82 transition pipe, 83 drainage sedimentation device, 84a, 84b guide piece, 9 centrifugal tube. DETAILED DESCRIPTION

[0028] The present application will be further described in detail below in conjunction with the drawings and embodiments, so that those skilled in the art can implement the present application according to the description.

[0029] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0030] As Figures 1-4 shown, the present application provides a multi-cycle waste gas treatment device, comprising: a waste gas collection system for collecting generated waste gas and guiding and conveying it to a treatment device;

[0031] a treatment device for multiple-cycle treatment of waste gas to remove harmful substances and particulate matter in the waste gas;

[0032] A control system is used to monitor and control the running state of the treatment device, automatically adjust the working parameters of the treatment device according to the composition of the exhaust gas and the treatment effect, so as to achieve the best exhaust gas treatment effect.

[0033] The working principle and beneficial effects of the above technical solution are as follows: when the exhaust gas is treated, the exhaust gas is treated by the treatment device for multiple cycles, which can improve the exhaust gas treatment efficiency and treatment quality. And because the treated exhaust gas is treated again, energy consumption can be effectively reduced, treatment cost can be reduced, harmful substances can be effectively removed through multiple cycle treatment, and environmental pollution caused by exhaust gas can be reduced, so that the effect of energy saving and environmental protection can be achieved. And because the treatment device adopts multiple cycle treatment, the number of cycles and the number of devices in the treatment device can be flexibly adjusted according to the composition of the exhaust gas and the treatment requirements to adapt to different exhaust gas treatment requirements. The running state of the treatment device can be monitored and controlled by the control system, and the working parameters of the treatment device can be automatically adjusted according to the composition of the exhaust gas and the treatment effect, so as to achieve stable, reliable and optimal exhaust gas treatment effect.

[0034] In actual industrial production, the composition and pollutant components of the exhaust gas may change, including concentration, type and reaction activity corresponding to the catalyst. The treatment device can adapt to these changes through multiple cycle treatment and simultaneously treat multiple pollutants to maintain high efficiency of exhaust gas purification.

[0035] In one embodiment, the treatment device is composed of multiple cycle systems, the cycle system is composed of an exhaust gas treatment unit 1 for adsorbing, burning and catalyzing the exhaust gas, which is communicated with the gas outlet end of the exhaust gas collection system; a circulating fan 2 for circulating exhaust gas treatment, which is arranged at the top of the exhaust gas treatment unit 1 and communicated with the gas inlet end of the exhaust gas treatment unit 1; and a shunt filter 3 for filtering particulate matter, which is arranged at the gas outlet end of the exhaust gas treatment unit 1, the shunt filter 3 is communicated with the circulating fan 2 through an air pipe 4, the gas outlet end of the shunt filter 3 is selectively communicated with the gas inlet end of the exhaust gas treatment unit 1 of the next cycle system or directly communicated with the outside for emission, and the control system is used to monitor and control the exhaust gas treatment unit 1, the circulating fan 2 and the shunt filter 3.

[0036] The multiple cycle systems respectively constitute a primary cycle 5 and a secondary cycle 6, the gas outlet end of the exhaust gas collection system is connected with the gas inlet end of the primary cycle 5, the gas outlet end of the primary cycle 5 is connected with the gas inlet end of the secondary cycle 6 after converging through a primary converging device 51, and the gas outlet end of the secondary cycle 6 is emitted after converging through a secondary converging device 61.

[0037] The first circulation 5 is composed of at least two circulation systems, the second circulation 6 is composed of at least two circulation systems, the exhaust gas collection system is communicated with each exhaust gas treatment unit 1 in the first circulation 5, the exhaust end of each shunt filter 3 in the first circulation 5 is communicated with the first flow combiner 51, the exhaust end of the first flow combiner 51 is communicated with each exhaust gas treatment unit 1 in the second circulation 6, the exhaust end of each shunt filter 3 in the second circulation 6 is communicated with the second flow combiner 61, and the exhaust end of the second flow combiner 61 is communicated with the outside.

[0038] The working principle and beneficial effects of the above technical solution are as follows: the embodiment provides a specific implementation manner of the multi-circulation treatment device. It should be noted that in the embodiment, two-stage circulation is adopted, and two circulation systems are arranged in each circulation stage, which does not mean that the application can only treat exhaust gas through the implementation manner. In actual industrial production, the composition and pollutant components of exhaust gas may change, including concentration, type and reaction activity of the corresponding catalyst. Therefore, according to the actual situation, one-stage to multi-stage circulation can be arranged, and one to multiple circulation systems can be arranged in each circulation stage.

[0039] Taking the two-stage circulation of the embodiment as an example, each circulation stage has two circulation systems.

[0040] When treating exhaust gas, the exhaust gas is transported to the two exhaust gas treatment units 1 of the first circulation 5 through the exhaust gas collection system, the exhaust gas treatment unit 1 is provided with a treatment device or member for adsorption, combustion and catalysis, which belongs to the prior art, and the exhaust gas is treated in the exhaust gas treatment unit 1. After treatment, the exhaust gas enters the shunt filter 3 to filter particulate matter, forming primary treated exhaust gas.

[0041] Part of the primary treated exhaust gas is returned to the gas inlet end of the exhaust gas treatment unit 1 through the action of the circulation fan 2 through the gas pipe 4, reenters the exhaust gas treatment unit 1 for exhaust gas treatment, and dilutes the concentration of the subsequent exhaust gas, thereby improving the treatment efficiency of the exhaust gas (it should be noted that control valves can be arranged on the shunt filter 3 and the gas inlet end of the exhaust gas treatment unit 1. According to the actual production needs, if only one-stage circulation is arranged for treatment and then discharged, the control valves can be controlled by the control system, so that the primary treated exhaust gas is treated by the exhaust gas treatment unit 1 multiple times. After the control system monitors that the exhaust gas treatment meets the emission standard, the exhaust gas is discharged to the outside). Another part enters the second circulation 6 after being combined and stably transported by the first flow combiner 51.

[0042] The once-treated exhaust gas is transported to two exhaust gas treatment units 1 in the secondary circulation 6 for exhaust gas treatment, and then filtered by a shunt filter 3 to remove particulate matter, obtaining the twice-treated exhaust gas meeting the emission standard. A part of the twice-treated exhaust gas is returned to the gas inlet end of the exhaust gas treatment unit 1 through the gas pipe 4 by the action of the circulation fan 2, and the exhaust gas treatment is carried out again, and the concentration of the subsequent once-treated exhaust gas is diluted, and the exhaust gas treatment efficiency is improved.

[0043] The present application adopts a small number of multiple implementations, dilutes the untreated exhaust gas with the treated exhaust gas, and then disperses the exhaust gas treatment pressure of each circulation system through the setting of multiple circulation and multiple circulation systems, thereby greatly improving the exhaust gas treatment efficiency and treatment quality, to realize energy-saving, efficient and stable exhaust gas treatment.

[0044] In one embodiment, the gas outlet end of the exhaust gas collection system is provided with a gas supply pipe 7, the gas outlet end of the gas supply pipe 7 is communicated with the gas inlet end of the exhaust gas treatment unit 1 through a spray pipe 8, the gas inlet end of the circulation fan 2 is communicated with the gas pipe 4, the gas outlet end of the circulation fan 2 is communicated with the spray pipe 8 through a centrifugal pipe 9, the gas supply pipe 7 is arranged in the vertical direction, the centrifugal pipe 9 is spirally wound on the outer wall of the gas supply pipe 7, the gas outlet end of the centrifugal pipe 9 is located on the side wall of the spray pipe 8, and the side wall of the spray pipe 8 is provided with a water pipe interface 81 for connecting with a water supply system.

[0045] The communication part of the centrifugal pipe 9 and the spray pipe 8 is provided with a transition pipe 82, the transition pipe 82 is located on the outer wall of the spray pipe 8 and arranged in the axial direction of the spray pipe 8, and the communication part of the centrifugal pipe 9 and the transition pipe 82 is higher than the communication part of the transition pipe 82 and the spray pipe 8.

[0046] A drainage settling device 83 is arranged on the inner wall of the spray pipe 8, the drainage settling device 83 is in the shape of a ring, two guide pieces 84a and 84b are arranged on the inner wall of the drainage settling device 83, a gap is left between the two guide pieces 84a and 84b, one of the guide pieces 84a is folded upward along the drainage settling device 83, and the other guide piece 84b is folded downward along the drainage settling device 83, the drainage settling device 83 is located above the communication part of the transition pipe 82 and the spray pipe 8, and the water pipe interface 81 of the spray pipe 8 is located below the drainage settling device 83.

[0047] The working principle and beneficial effects of the above technical solution are as follows: in order to further improve the waste gas treatment efficiency, in addition to the shunt filter 3 arranged at the gas outlet end of the waste gas treatment unit 1 to filter particulate matters, the embodiment further provides an implementation mode, that is, the once-treated waste gas pumped by the circulating fan 2 is centrifuged through the centrifugal pipe 9, then the untreated waste gas is diluted in the spray pipe 8, and part of impurities in the untreated waste gas is physically settled through the spray water mist, so as to reduce the re-pollution of the untreated waste gas to the once-treated waste gas, improve the treatment efficiency and treatment quality of the diluted waste gas.

[0048] The spray pipe 8 is further provided with a circular ring-shaped flow guiding and settling device 83, and a gap is left between two guide sheets 84a and 84b on the flow guiding and settling device 83, and the gap is arranged along the diameter of the flow guiding and settling device 83. The inclined surface of the upwardly folded guide sheet 84a and the inclined surface of the downwardly folded guide sheet 84b are located on opposite sides and form a spiral shape, as shown in FIG. 8, so that the untreated waste gas can generate a rotational flow through the guidance of the two guide sheets 84a and 84b when entering the spray pipe 8, and the rotation direction of the untreated waste gas needs to be the same as that of the once-treated waste gas entering through the centrifugal pipe 9, so as to achieve the rapid mixing and dilution of the two waste gas streams, improve the flow rate of the mixed waste gas stream, and avoid the occurrence of turbulent flow. Figure 3

[0049] Through the arrangement of the flow guiding and settling device 83, even if the water mist overflows into the air pipe 7, it can fall back into the waste gas treatment unit 1 along the guide sheets 84a and 84b after settling. The centrifugal pipe 9 can throw small molecular impurities in the once-treated waste gas that are not filtered out by the shunt filter 3 in the centrifugal pipe 9 through centrifugal action, and then fall into the spray pipe 8 through the transition pipe 82 to mix with the water mist and settle, so as to improve the treatment quality of the waste gas.

[0050] In one embodiment, the circulating fan 2 is composed of a turbine blade 22 arranged in a housing 21 and located at the top of the housing 21, and a motor arranged outside the housing 21 and used to drive the turbine blade 22 to rotate, the air pipe 4 communicates with the side wall of the housing 21, and the communication position is opposite to the turbine blade 22, and the bottom of the housing 21 communicates with the air inlet end of the waste gas treatment unit 1.

[0051] The side wall of the housing 21 is provided with a guide pipe 23, one end of the guide pipe 23 communicates with the side wall of the housing 21, and the communication position is opposite to the turbine blade 22, and the other end of the guide pipe 23 communicates with the air pipe 4.

[0052] ​The guide pipe 23 is provided with a communication pipe 24, one end of the communication pipe 24 is communicated with the side wall of the shell 21 and the communication position is below the turbine blade 22, and the other end of the communication pipe 24 is selectively communicated with the inside of the guide pipe 23 or with a water supply system.

[0053] The working principle and beneficial effects of the above technical solution are as follows: in order to further improve the flexibility of the device placement, the air pipe 4 can be made of a non-rigid material pipe, thereby reducing the production and maintenance costs of the application, and the cross-floor setting of the waste gas treatment unit 1 can be realized, thereby the volume of the waste gas treatment unit 1 can be increased, the internal waste gas treatment equipment and hooks can be increased, and the range of treatable waste gas can be increased.

[0054] In the embodiment, the circulating fan 2 is arranged in the form of turbine blade 22 side air inlet and vertical downward air supply. The side wall of the shell 21 is provided with a guide pipe 23 for connecting with the air pipe 4, and a communication pipe 24 is arranged on the guide pipe 23.

[0055] According to the actual needs of the site, the communication pipe 24 can be communicated with the inside of the guide pipe 23 (this embodiment is for the embodiment provided with the spray pipe 8), when the turbine blade 22 pumps the once-treated waste gas, a part of the once-treated waste gas enters the guide pipe 23 through the pumping of the turbine blade 22, enters the centrifugal pipe 9 from the bottom of the shell 21 after being accelerated by the turbine blade 22 for centrifugal treatment, the turbine blade 22 can make the once-treated waste gas entering the centrifugal pipe 9 rotate to form a cyclone, thereby improving the centrifugal effect. A small part will enter the shell 21 through the communication pipe 24, and the communication pipe 24 is usually arranged as a capillary tube, only when the waste gas treatment amount is large and single-stage multiple circulation, the non-rigid air pipe 4 is prevented from being damaged due to the excessive pressure of the circulating treated waste gas, and the pressure relief treatment can be performed through the communication pipe 24.

[0056] According to the actual needs of the site, the communication pipe 24 can also be communicated with the water supply system (usually for the embodiment without the spray pipe 8), the water supply system sprays high-pressure water into the shell 21 through the communication pipe 24 to form water mist on the inner wall of the shell 21 (or a nozzle capable of forming water mist is arranged, and the water pipe interface 81 in the spray pipe 8 is the same in principle). Under the action of the turbine blade 22, the water mist will not splash on the turbine blade 22, so as not to cause damage to the motor and the turbine blade 22. The water mist will enter the spray pipe 8 through the centrifugal pipe 9 (or directly mix with the waste gas in the air supply pipe 7 and then enter the air inlet of the waste gas treatment unit 1), thereby the physical sedimentation effect on the waste gas can also be realized.

[0057] In the description of the application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0058] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0059] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and implementation listed in the specification and embodiments, and it can be fully applied to various fields suitable for the present application, and additional modifications can be easily realized by those skilled in the art, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A multi-cycle waste gas treatment device, characterized in that, include: An exhaust gas collection system is used to collect the generated exhaust gas and guide and transport it to the treatment device. The treatment device is used to process waste gas in multiple cycles to remove harmful substances and particulate matter from the waste gas; The control system is used to monitor and control the operating status of the treatment device, and automatically adjust the operating parameters of the treatment device according to the composition of the exhaust gas and the treatment effect to achieve the best exhaust gas treatment effect. The treatment device consists of multiple circulation systems, each circulation system consisting of a waste gas treatment unit (1) connected to the outlet of the waste gas collection system for adsorbing, burning, and catalyzing waste gas; a circulating fan (2) located on top of the waste gas treatment unit (1) and connected to the inlet of the waste gas treatment unit (1) for circulating waste gas treatment; and a diversion filter (3) located at the outlet of the waste gas treatment unit (1) for filtering particulate matter. The diversion filter (3) is connected to the circulating fan (2) via a pipe (4). The outlet of the diversion filter (3) is selectively connected to the inlet of the waste gas treatment unit (1) of the next circulation system, or directly connected to the outside for discharge. The control system is used to monitor and control the waste gas treatment unit (1), the circulating fan (2), and the diversion filter (3). The exhaust gas collection system is provided with an air supply pipe (7) at the exhaust end. The exhaust end of the air supply pipe (7) is connected to the air inlet of the exhaust gas treatment unit (1) through a spray pipe (8). The air inlet of the circulating fan (2) is connected to the air pipe (4). The exhaust end of the circulating fan (2) is connected to the spray pipe (8) through a centrifugal tube (9). The air supply pipe (7) is arranged vertically. The centrifugal tube (9) is spirally wound around the outer wall of the air supply pipe (7). The exhaust end of the centrifugal tube (9) is located on the side wall of the spray pipe (8). The side wall of the spray pipe (8) is provided with a water pipe interface (81) for connecting to the water supply system.

2. The multi-cycle waste gas treatment device according to claim 1, characterized in that, The multiple circulation systems constitute a primary circulation (5) and a secondary circulation (6) respectively. The exhaust gas collection system is connected to the inlet of the primary circulation (5). The exhaust gas collection system is connected to the inlet of the secondary circulation (6) after being merged by a primary confluencer (51). The exhaust gas collection system is connected to the inlet of the secondary circulation (6) after being merged by a secondary confluencer (61).

3. The multi-cycle waste gas treatment device according to claim 2, characterized in that, The primary cycle (5) consists of at least two of the cycle systems, and the secondary cycle (6) consists of at least two of the cycle systems. The exhaust gas collection system is connected to each of the exhaust gas treatment units (1) in the primary cycle (5). The exhaust gas collection system is connected to each of the exhaust gas treatment units (1) in the primary cycle (5). The exhaust gas collection system is connected to each of the diversion filters (3) in the primary cycle (5). The exhaust gas collection system is connected to each of the diversion filters (3) in the secondary cycle (6). The exhaust gas collection system is connected to each of the diversion filters (3) in the secondary cycle (6). The exhaust gas collection system is connected to each of the diversion filters (3) in the secondary cycle (6). The exhaust gas collection system is connected to the outside.

4. The multi-cycle waste gas treatment device according to claim 1, characterized in that, A transition pipe (82) is provided at the connection between the centrifuge tube (9) and the spray pipe (8). The transition pipe (82) is located on the outer wall of the spray pipe (8) and is arranged along the axial direction of the spray pipe (8). The connection between the centrifuge tube (9) and the transition pipe (82) is higher than the connection between the transition pipe (82) and the spray pipe (8).

5. The multi-cycle waste gas treatment device according to claim 4, characterized in that, The inner wall of the spray pipe (8) is provided with a drainage and settling device (83). The drainage and settling device (83) is annular. The inner wall of the drainage and settling device (83) is provided with two guide plates (84a, 84b). There is a gap between the two guide plates (84a, 84b). One of the guide plates (84a) is folded upward along the drainage and settling device (83), and the other guide plate (84b) is folded downward along the drainage and settling device (83). The drainage and settling device (83) is located above the connection between the transition pipe (82) and the spray pipe (8). The water pipe interface (81) of the spray pipe (8) is located below the drainage and settling device (83).

6. The multi-cycle waste gas treatment device according to claim 1, characterized in that, The circulating fan (2) consists of a turbine blade (22) disposed inside the housing (21) and located at the top of the housing (21) and a motor disposed outside the housing (21) for driving the turbine blade (22) to rotate. The air pipe (4) is connected to the side wall of the housing (21) and the connection point is opposite to the turbine blade (22). The bottom of the housing (21) is connected to the air inlet of the exhaust gas treatment unit (1).

7. The multi-cycle waste gas treatment device according to claim 6, characterized in that, The side wall of the housing (21) is provided with a guide tube (23). One end of the guide tube (23) is connected to the side wall of the housing (21) and the connection point is opposite to the turbine blade (22). The other end of the guide tube (23) is connected to the air pipe (4).

8. The multi-cycle waste gas treatment device according to claim 7, characterized in that, A connecting pipe (24) is provided on the guide pipe (23). One end of the connecting pipe (24) is connected to the side wall of the housing (21), and the connection point is located below the turbine blade (22). The other end of the connecting pipe (24) is selectively connected to the interior of the guide pipe (23) or to the water supply system.

Images