Flue gas treatment device for denitration, CO removal and reaction waste heat recovery
By introducing spray components, heat exchange components and conveying components into the flue gas treatment device, the problem of heat not being recycled is solved, efficient and low-cost operation of the denitrification and decarbonation processes is achieved, and the complexity of the equipment is reduced.
Patent Information
- Application Number
- CN202422982209.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In existing flue gas treatment devices, heat is absorbed by the catalyst during the denitrification process but is not effectively recycled, resulting in a waste of resources. Furthermore, the denitrification and decarbonation processes require additional cooling systems, increasing costs and complexity.
A denitrification box is designed, which includes a spray component, a heat exchange component and a conveying component. The spray component atomizes the catalyst solution to react with the flue gas, the heat exchange component recovers the heat, and the conveying component uses the flow power of the catalyst solution to transport the heat out, thereby realizing heat recovery and utilization.
Without increasing the floor space, the denitrification efficiency is improved, the cost is reduced, the flue gas temperature is effectively controlled, the need for an additional cooling system is avoided, and the efficient recovery and utilization of heat is achieved.
Smart Images
Figure CN223454002U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of flue gas treatment, more specifically, especially relates to a flue gas treatment device of denitration simultaneously removes CO and recovers reaction waste heat. BACKGROUND
[0002] The flue gas treatment equipment is used for purifying and treating the flue gas generated in industry or life, and its core purpose is to reduce harmful substance emission, protect the environment and human health, and the flue gas treatment equipment includes dust removal device, denitration device, denitration device, adsorption equipment, absorption equipment and catalytic combustion equipment.
[0003] Among them, the flue gas denitration technology mainly has dry method (selective catalytic reduction flue gas denitration, selective non-catalytic reduction method denitration) and wet method. Compared with the wet flue gas denitration technology, the main advantages of the dry flue gas denitration technology are as follows: low basic investment, simple equipment and process, high NOX removal efficiency, no waste water and waste treatment, and no secondary pollution; common carbon dioxide capture technologies are chemical absorption method, physical adsorption method, membrane separation method and oxidation-reduction method, which remove carbon dioxide contained in flue gas through different ways, and finally achieve the purpose of purifying flue gas.
[0004] In many industrial flue gas treatments, denitration is usually prior to carbon monoxide removal, because desulfurization usually requires a higher temperature (300-400 DEG C), and carbon monoxide removal requires a lower temperature for catalytic oxidation (200-300 DEG C). Therefore, denitration first uses the appropriate temperature range to create more suitable conditions for subsequent CO removal.
[0005] In the common denitration process, sulfur in the flue gas is purified under the action of the catalyst, and the heat is also absorbed by the catalyst. In order to ensure the use temperature of the catalyst, an independent cooling system needs to be arranged on the circulating pipeline. Firstly, the refrigeration system cost is high, and the absorbed heat cannot be recycled, causing double resource waste.
[0006] Secondly, the cooling effect of some denitration processes is poor, for example, the heat exchange effect is not ideal, the reaction channel is limited, etc. In order to ensure the temperature of subsequent carbon monoxide removal, a cooling system needs to be additionally arranged, which reduces the temperature to the temperature range of carbon monoxide removal through the cooling system. Although the flue gas treatment process can be ensured, the cost is high, the steps are cumbersome, and it is not conducive to efficient flue gas treatment.
[0007] To solve the above problems, the flue gas treatment device for denitration and carbon monoxide removal and reaction waste heat recovery is provided. Utility model content
[0008] The utility model discloses a purpose at providing a kind of flue gas treatment device of denitration simultaneously removing CO and recycling reaction waste heat, with the characteristics of recycling denitration heat and automatically conveying heat.
[0009] The utility model discloses a purpose can be realized by following technical scheme:
[0010] A kind of flue gas treatment device of denitration simultaneously removing CO and recycling reaction waste heat, including the denitration box and deoxidizing equipment for flue gas treatment, the denitration box includes box body and the partition plate fixed in box body interior and the partition plate is formed by separating, and the air passage groove of being opened in the upper and lower end of partition plate and being formed vertical reciprocating air passage between box body and partition plate, further include:
[0011] Spraying part is formed in the circulating pipeline in denitration box, the spraying part circulates and atomizes catalyst solution, purifies sulfur in flue gas while realizing cooling;
[0012] Heat exchange component is set in the position of spraying part storage catalyst solution, and the heat exchange component realizes the heat exchange of catalyst solution, ensures that catalyst solution keeps at working temperature;
[0013] Conveying component is movably arranged in the circulating pipeline of spraying part and one end of heat exchange component, and the conveying component utilizes the flow power of catalyst solution to send out the heat exchanged by heat exchange component outward, to realize heat recycling of flue gas treatment;
[0014] In the above technical scheme, by setting vertical reciprocating air passage, the length of air passage can be guaranteed while controlling occupied space, to ensure denitration and heat exchange effect, the spraying part is set to mix catalyst solution and flue gas sufficiently, to ensure treatment effect, then cooperate with the efficient heat exchange of heat exchange component and the flow guide of conveying component, to recycle heat generated by flue gas treatment, and the conveying component also utilizes catalyst solution flow as power source, and power utilization is sufficient.
[0015] The box body top is sealingly provided with an enclosure plate, the enclosure plate is provided with an air inlet and an air outlet respectively, and the deoxidizing equipment is provided with an adapter pipe connected with the air outlet.
[0016] In the above technical scheme, flue gas is treated by denitration box, and then flows through the adapter pipe into the deoxidizing equipment to perform carbon monoxide treatment process.
[0017] The spraying part includes a conical liquid storage tank fixed to the bottom of the box body and communicating with the box body, a filter fixed to the outer side of the box body, and a circulating pump, a shunt pipe is fixed to the upper end of the box body interior, and a plurality of atomizing nozzles are arranged above the center of the reciprocating channel on the shunt pipe.
[0018] The filter can filter the solid matter after the catalyst solution reacts with sulfur, and the filter can be increased in size according to the actual use frequency and time length, so as to ensure the reliability of the catalyst solution circulation work.
[0019] The backflow pipe is composed of three parts, the upper end of which is connected between the shunt pipe and the circulating pump, the middle end of which is connected between the circulating pump and the filter, and the lower end of which is connected to the other end of the filter and located in the conical liquid storage tank, and the opening at the bottom of the lower end of the backflow pipe is located at the lower end of the inner side of the conical liquid storage tank.
[0020] In the above technical solution, the backflow pipe returns and circulates the catalyst solution by the circulating pump, realizes continuous denitration and cooling, and the backflow pipe at the bottom is located below the heat exchange component, so that the cooled catalyst solution is further atomized, and the catalyst solution is cooled more fully.
[0021] The heat exchange component includes a through slot vertically arranged in the conical liquid storage tank, and an inner heat conducting fin vertically arranged in the through slot, a flow guide channel horizontally arranged in the conical liquid storage tank, and an outer heat conducting fin horizontally arranged in the flow guide channel, and a shunt connected to the outer part of one end of the flow guide channel and an output pipe at the other end of the conical liquid storage tank.
[0022] In the above technical solution, the shunt is connected to the conveying component, and the shunt uniformly diffuses the airflow generated by the conveying component to the flow guide channel, and the airflow passes through the flow guide channel and is connected to the outside through the output pipe.
[0023] The inner heat conducting fin is in contact with the catalyst solution, the flow guide channel is interconnected at both ends but not communicated with the inside of the conical liquid storage tank, and the flow guide channel and the outer heat conducting fin are simultaneously in contact with the airflow.
[0024] In the above technical solution, the inner heat conducting fin can quickly absorb the heat of the catalyst solution after contacting with the catalyst solution, and then conduct the heat to the flow guide channel and the outer heat conducting fin through the conical liquid storage tank, and the heat is taken away by the airflow in contact with the flow guide channel and the outer heat conducting fin and is recovered.
[0025] The conveying component includes a sealed box fixed on the atomizing nozzle, a power wheel rotatably arranged in the sealed box, an air cavity fixed on the shunt, and a fan blade rotatably arranged in the air cavity.
[0026] In the above technical solution, the conveying component takes out the heat exchanged by the heat exchange component by using the power generated by the flow of the catalyst solution, and then the heat is taken out through the external recycling pipeline, equipment, etc., which has the outstanding effects of high linkage and automatic recycling.
[0027] The fan blade and the power wheel are sequentially provided with a conical gear pair and a gear set.
[0028] In the technical scheme, the power wheel transmits power to the fan blade through the bevel gear pair and the gear set, so as to form the airflow for conveying heat.
[0029] The power wheel drives the flow of the catalyst solution to rotate in the sealed box, and then drives the fan blade to rotate through the gear set and the bevel gear pair, and generates the airflow blowing to the heat exchange component;
[0030] In the technical scheme, the conveying component utilizes the flow of the catalyst solution and the power wheel to generate power, realizes linkage with the spraying component, has high compactness and matching degree, and does not need to purchase an additional driving part as the driving end of the conveying component, so that the control cost is reduced.
[0031] The upper and lower ends of the air cavity are smaller in diameter than the middle part, the fan blade is installed in the middle part, and the top of the air cavity is also provided with an air hole;
[0032] In the technical scheme, the fan blade is arranged in the cavity with a larger middle part, and the airflow can be pushed to a greater extent after the fan blade rotates, so that the heat discharged by the heat exchange component can be quickly taken out, the air hole at the top of the air cavity plays an air inlet role, and a filter screen or a shielding part can be arranged on the air hole to achieve better dustproof effect.
[0033] The beneficial effects of the utility model are as follows:
[0034] The utility model discloses a reciprocating air channel formed by the box body, the partition plate and the air passage is arranged, and then the denitration work is carried out by adopting the atomizing spraying mode under the cooperation of the spraying component, the denitration effect can be guaranteed in smaller space, the flue gas temperature can be quickly reduced, the flue gas temperature after denitration treatment is guaranteed between the demand temperature of removing carbon monoxide, the cooling system is not needed, the cost is reduced and the efficiency is higher.
[0035] The heat exchange component arranged in the conical liquid storage groove can efficiently exchange heat with the catalyst solution, the heat of the catalyst solution can be quickly absorbed by the inner heat conduction sheet and then conducted to the flow guide channel and the outer heat conduction sheet through the conical liquid storage groove, and efficient heat dissipation can be realized in the circulation process of the catalyst solution.
[0036] The sealed box and the power wheel are installed on the return pipe, the fan blade is driven by the power of the catalyst solution flow driven by the circulating pump, then the airflow passes through the flow guide channel and the outer heat conduction sheet, and then the heat after heat exchange is quickly taken out, the heat after taking out is discharged through the output pipe, the output pipe can be connected with a pipeline, a valve, an energy storage device and the like, and can also be communicated with a heating system, so that the heat can be recycled and utilized. BRIEF DESCRIPTION OF DRAWINGS
[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.
[0038] Figure 1 It is a structure schematic view of the front view of the present application.
[0039] Figure 2 It is a structure schematic view of the rear view. Figure 1
[0040] Figure 3 It is a structure schematic view of the front view of the middle denitration tank. Figure 1
[0041] It is a structure schematic view of the middle denitration tank. Figure 4 Figure 1 It is a structure schematic view of the internal airflow channel of the middle denitration tank.
[0042] Figure 5 It is a structure schematic view of the power transmission between the power wheel and the fan blade in the present application.
[0043] Figure 6 It is a structure schematic view of the local section of the conical liquid storage groove and the distribution of the heat conducting sheet.
[0044] Figure 7 In the drawings, the component list represented by each reference sign is as follows.
[0045] In the drawings, the component list represented by each reference sign is as follows.
[0046] In the drawings, the component list represented by each reference sign is as follows. DETAILED DESCRIPTION
[0047] In order to make the utility model purposes, technical solutions and advantages more clearly, the following is further detailed with specific embodiments. It should be understood that the specific embodiments described herein are merely used to explain the utility model and not to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0048] As shown in Figure 1 - Figure 7 :
[0049] The embodiment provides a flue gas treatment device for denitration and CO removal and reaction waste heat recovery, which comprises a denitration box 1 for flue gas treatment and a deoxygenation device 2, the denitration box 1 comprises a box body 11, a partition plate 12 fixed in the box body 11 and forming a partition in the box body 11, and a ventilation groove 13 formed at the upper and lower ends of the partition plate 12 and forming a vertical reciprocating air channel between the box body 11 and the partition plate 12, and further comprising:
[0050] A spraying component 3 is arranged in the denitration box 1 to form a circulating pipeline, the spraying component 3 circulates and atomizes the catalyst solution, and purifies sulfur in the flue gas while achieving cooling;
[0051] A heat exchange component 4 is arranged at a position where the spraying component 3 stores the catalyst solution, the heat exchange component 4 realizes heat exchange of the catalyst solution, and ensures that the catalyst solution is kept at a working temperature;
[0052] A conveying component 5 is movably arranged at one end of the circulating pipeline of the spraying component 3 and the heat exchange component 4, the conveying component 5 utilizes the flow power of the catalyst solution to send out the heat exchanged by the heat exchange component 4, so as to realize heat recovery and utilization of flue gas treatment.
[0053] Specifically, flue gas enters the denitration box 1 and reciprocally flows along the channel thereof, in the process, the spraying component 3 forms a spray to react with the flue gas for denitration, the catalyst solution absorbs the heat of the flue gas, the catalyst heat is led out by the heat exchange component 4, and then directional air flow is formed by the conveying component 5 driven by the spraying component 3, so that the gas with heat in the heat exchange component 4 is recycled and utilized.
[0054] As a flue gas treatment device for denitration and CO removal and reaction waste heat recovery in the utility model, the box body 11 is provided with a sealing plate 14 at the top, the sealing plate 14 is provided with an air inlet 15 and an air outlet 16 respectively, and the deoxygenation device 2 is provided with a switching pipe 21 connected with the air outlet 16;
[0055] Specifically, as shown in Figure 4As shown, the flue gas enters the air inlet 15 and flows downward, moves upward after passing through the air slot 13, flows downward again after passing through the air slot 13 again, flows upward again after passing through the left rear air slot 13, and flows out from the air outlet 16, and the air slot 13 shown in the figure is three, the first one is located below the side of the air inlet 15, the third one is located below the side of the air outlet 16, and the second one is located at the mark of the air slot 13 shown in the figure.
[0056] As an embodiment of the flue gas treatment device for simultaneously removing denitration, CO and recovering reaction waste heat of the utility model, the spraying part 3 includes a conical liquid storage groove 31 fixed at the bottom of the box body 11 and communicated with the box body 11, a filter 32 fixed on the outer side of the box body 11 and a circulating pump 33, a shunt pipe 34 is fixed at the upper end of the inside of the box body 11, a plurality of atomizing nozzles 35 located above the center of the reciprocating channel are arranged on the shunt pipe 34; further comprising a reflux pipe 36, the reflux pipe 36 is composed of three parts, the uppermost end is connected between the shunt pipe 34 and the circulating pump 33, the middle is connected between the circulating pump 33 and the filter 32, and the lower end is connected to the other end of the filter 32 and located in the conical liquid storage groove 31, and the opening at the bottom of the lower end of the reflux pipe 36 is located inside the lower end of the conical liquid storage groove 31;
[0057] Specifically, the catalyst solution is added to the inside of the conical liquid storage groove 31, which can be a titanium-based or vanadium-based catalyst, and the catalyst liquid level is flush with the top surface of the conical liquid storage groove 31, and the catalyst is immersed in the inner heat conducting fin 41, when the circulating pump 33 works, the catalyst solution in the conical liquid storage groove 31 is sucked upward through the bottommost reflux pipe 36, the catalyst solution flows upward in the reflux pipe 36, and the catalyst solution flows through the filter 32 and is filtered, and then flows through the shunt pipe 34 and is sprayed out through the atomizing nozzle 35, the catalyst solution sprayed out of the atomizing nozzle 35 diffuses in the reciprocating channel inside the denitration box 1, so as to fully react with the internal flue gas.
[0058] As an embodiment of the flue gas treatment device for simultaneously removing denitration, CO and recovering reaction waste heat of the utility model, the heat exchange part 4 includes a through groove vertically arranged in the conical liquid storage groove 31, the through groove is provided with an inner heat conducting fin 41 arranged vertically, a flow guide channel 42 is horizontally arranged in the conical liquid storage groove 31, the flow guide channel 42 is provided with an outer heat conducting fin 43 arranged horizontally, one end of the conical liquid storage groove 31 is provided with a flow divider 44 located outside one end of the flow guide channel 42 and an output pipe 45 at the other end; the inner heat conducting fin 41 is in contact with the catalyst solution, the flow guide channel 42 is communicated at both ends but not communicated with the inside of the conical liquid storage groove 31, and the flow guide channel 42 and the outer heat conducting fin 43 are in contact with the airflow at the same time;
[0059] Specifically, the catalyst solution sprayed by the spraying component 3 and heated by the flue gas drops on the upper end of the conical liquid storage tank 31, at this time, the circulating pump 33 is in working condition, which will suck the catalyst solution in the lower part, and then the catalyst solution in the upper part moves down, in the process, the catalyst solution contacts with the inner heat conducting fin 41, the inner heat conducting fin 41 absorbs the heat and then guides to the flow guide channel 42 and the outer heat conducting fin 43 through the conical liquid storage tank 31, the hot gas is flowed along the flow divider 44, the flow guide channel 42 by the air flow formed by the conveying component 5 and then discharged from the output pipe 45.
[0060] As a flue gas treatment device for denitration, CO removal and reaction waste heat recovery of the utility model, the conveying component 5 includes a sealed box 51 fixed on the atomizing nozzle 35, a power wheel 52 rotatably arranged in the sealed box 51, an air cavity 53 fixed on the flow divider 44 and a fan blade 54 rotatably arranged in the air cavity 53; the fan blade 54 and the power wheel 52 are sequentially provided with a conical gear pair 55 and a gear set 56; the power wheel 52 is rotated in the sealed box 51 by the flow of the catalyst solution driven by the circulating pump 33, and then drives the fan blade 54 to rotate and generate the air flow blowing to the heat exchange component 4 through the gear set 56 and the conical gear pair 55; the upper end and the lower end of the air cavity 53 are smaller in diameter than the middle part, the fan blade 54 is installed in the middle part, and a gas hole is further formed in the top of the air cavity 53;
[0061] Specifically, the power wheel 52 is rotated in the sealed box 51 by the flow of the catalyst solution, and the fan blade 54 is rotated in the air cavity 53 under the action of the gear set 56 and the conical gear pair 55, the fan blade 54 drives the external air flow to enter from the upper hole of the air cavity 53 after rotating, the air flow enters the flow divider 44 and passes through the flow guide channel 42 to discharge the heat conducted by the heat exchange component 4 from the output pipe 45.
[0062] It can be understood that, first, by arranging the vertical reciprocating air duct, the length of the air flow channel can be ensured while the occupied space is controlled, thereby ensuring the denitration and heat exchange effects, second, the spraying component can fully mix the catalyst solution with the flue gas, thereby ensuring the treatment effect, then the efficient heat exchange of the heat exchange component and the flow guiding of the conveying component are combined, finally, the heat generated by the flue gas treatment is recycled, and the conveying component further utilizes the flow of the catalyst solution as a power source, so that the power utilization is sufficient, and the device as a whole is more green.
[0063] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.
[0064] It should be pointed out finally that: the above only for the preferred embodiments of the utility model have, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.
Claims
1. A flue gas treatment device for denitration, simultaneous removal of CO and recovery of reaction waste heat, comprising a denitration tank (1) and a deoxygenation device (2) for flue gas treatment, characterized in that, The denitration box (1) comprises a box body (11), a partition plate (12) fixed inside the box body (11) and forming a partition, and a ventilation groove (13) formed between the box body (11) and the partition plate (12) and opening at the upper and lower ends of the partition plate (12) to form a vertical reciprocating air passage. A spraying component (3) is arranged in the denitration box (1) to form a circulating pipeline, which circulates and atomizes the catalyst solution, purifies sulfur in the flue gas, and cools the flue gas at the same time. A heat exchange component (4) is arranged at a position where the spraying component (3) stores the catalyst solution, which exchanges heat of the catalyst solution to ensure that the catalyst solution is kept at a working temperature. A conveying component (5) is movably arranged in the circulating pipeline of the spraying component (3) and one end of the heat exchange component (4), which uses the flow power of the catalyst solution to send the heat exchanged by the heat exchange component (4) outward, thereby realizing heat recycling of flue gas treatment.
2. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 1, characterized in that: The box body (11) is provided with a sealing plate (14) at the top, and the sealing plate (14) is provided with an air inlet (15) and an air outlet (16), respectively.
3. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 1, characterized in that: The spraying component (3) comprises a conical liquid storage groove (31) fixed at the bottom of the box body (11) and communicating with the box body (11), a filter (32) fixed on the outer side of the box body (11), and a circulating pump (33), and a shunt pipe (34) is fixed at the upper end of the box body (11), and a plurality of atomizing nozzles (35) are arranged on the shunt pipe (34) above the center of the reciprocating passage.
4. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 3, characterized in that: It also comprises a reflux pipe (36) which is composed of three parts, the upper end of which is connected between the shunt pipe (34) and the circulating pump (33), the middle part is connected between the circulating pump (33) and the filter (32), and the lower end is connected to the other end of the filter (32) and located in the conical liquid storage groove (31), and the opening at the bottom of the lower end of the reflux pipe (36) is located inside the lower end of the conical liquid storage groove (31).
5. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 3, characterized in that: The heat exchange component (4) comprises a through groove vertically arranged in the conical liquid storage groove (31), an inner heat conducting fin (41) vertically arranged in the through groove, a flow guide channel (42) horizontally arranged in the conical liquid storage groove (31), an outer heat conducting fin (43) horizontally arranged in the flow guide channel (42), a shunt device (44) arranged outside one end of the flow guide channel (42) and an output pipe (45) arranged at the other end of the conical liquid storage groove (31).
6. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 5, characterized in that: The inner heat conducting fin (41) is in contact with the catalyst solution, and the flow guide channel (42) is in communication at both ends but not the same as the inside of the conical liquid storage groove (31), and the flow guide channel (42) and the outer heat conducting fin (43) are in contact with the airflow at the same time.
7. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 5, characterized in that: The conveying component (5) comprises a sealing box (51) fixed on the atomizing nozzle (35), a power wheel (52) rotatably arranged in the sealing box (51), an air cavity (53) fixed on the shunt device (44), and a fan blade (54) rotatably arranged in the air cavity (53).
8. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 7, characterized in that: The fan blade (54) is sequentially provided with a bevel gear pair (55) and a gear set (56) between the fan blade (54) and the power wheel (52).
9. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 8, characterized in that: The power wheel (52) is driven by a circulating pump (33) to rotate in the sealed box (51) to drive the flow of the catalyst solution, and then drives the fan blade (54) to rotate through the gear set (56) and the bevel gear pair (55) and generates the airflow blowing to the heat exchange component (4).
10. The flue gas treatment device for simultaneous removal of NOx, CO and recovery of reaction waste heat according to claim 7, characterized in that: The gas cavity (53) is provided with a gas hole at the top.