A spray tower for exhaust gas treatment

Abstract

The present application provides a kind of spray tower for waste gas treatment, including tower body, the upper end of the tower body is equipped with air outlet, the inside of the tower body is equipped with spray assembly, the lower end of the tower body is connected with multiple air inlet tubes, the upper end of the air inlet tube is communicated with the inside of tower body, the lower end of the air inlet tube is equipped with liquid discharge port, the side of the air inlet tube is equipped with air inlet port;The lower side of the air inlet tube is equipped with liquid seal funnel capable of liquid sealing liquid discharge port;The inside of the air inlet tube is equipped with heat absorption assembly.Tower body and air inlet tube can promptly discharge spray liquid, and spray liquid storage spray liquid does not appear, avoid heated spray liquid to become heat source, avoid because the spray liquid storage and form water vapor secondary pollution;Heat absorption assembly in air inlet tube can carry out cooling treatment to high-temperature waste gas;Heat absorption assembly can agitate liquid seal chamber simultaneously in rotation, avoid the problem that impurity deposition blocks the liquid discharge port of the lower end of air inlet tube appears in liquid seal chamber.

Description

Technical Field

[0001] This invention relates to the field of waste gas purification and treatment equipment, and specifically to a spray tower for waste gas treatment. Background Technology

[0002] Spray towers exist as a type of environmental waste gas treatment equipment. Based on their working principle, they are classified into circulating water spray towers, alkaline spray towers, and acid spray towers. Based on the tower body material, they are classified into fiberglass spray towers, PP spray towers, and stainless steel spray towers. Appropriate spray materials and spraying processes are selected according to the different properties of the waste gas.

[0003] An existing spray tower, reference Figure 1 As shown, it mainly consists of a tower body. Exhaust gas enters from the bottom of the tower body, is treated by the spray system inside, and then exits from the top. The bottom of the tower body is a water tank structure; the spray liquid falls into the water tank during the spraying process, and the liquid in the tank is also supplied to the spray system via a circulating water pump, forming a circulating spray system.

[0004] However, this existing spray tower has the following problems when treating high-temperature exhaust gas (around 200°C):

[0005] (i) Steam carrying impurities causes secondary pollution

[0006] When the exhaust gas is high-temperature, its entry into the tower rapidly heats the spraying liquid. As the operating time increases, the liquid temperature in the tank rises continuously, potentially generating steam due to excessive heat. This steam, as it rises, carries impurities from the spraying liquid, causing secondary pollution. This not only reduces the effectiveness of exhaust gas treatment but may also pose a greater threat to the surrounding environment.

[0007] (ii) Poor heat dissipation and cooling capacity

[0008] Because the water tank at the bottom of the tower is integrally connected to the tower body, the high-temperature exhaust gas directly heats the liquid inside the tank after entering the tower. This makes it difficult for the liquid temperature to drop after it rises, resulting in extremely poor heat dissipation and cooling capacity. Even after the high-temperature exhaust gas is stopped, the liquid in the tank takes a long time to cool down naturally, severely affecting the continuous operating efficiency and stability of the spray tower.

[0009] In summary, the existing problems of spray towers in treating high-temperature waste gas urgently need to be solved in order to improve the waste gas treatment effect and the reliability of the equipment. Summary of the Invention

[0010] In view of the problems pointed out in the background art, the present invention proposes a spray tower for waste gas treatment to solve the above-mentioned technical problems.

[0011] The technical solution of this invention is implemented as follows:

[0012] A spray tower for waste gas treatment includes a tower body, an air outlet at the upper end of the tower body, and a spray assembly inside the tower body.

[0013] The lower end of the tower body is connected to multiple air inlet ducts, the upper end of the air inlet ducts is connected to the interior of the tower body, the lower end of the air inlet ducts is provided with a drain port, and the side of the air inlet ducts is provided with an air inlet.

[0014] The lower side of the air inlet duct is provided with a liquid-sealing funnel that can liquid seal the drain outlet;

[0015] The air inlet duct is equipped with a heat absorption component inside.

[0016] By adopting the above technical solution: high-temperature exhaust gas enters the tower body through multiple air inlets and is then discharged from the air outlet at the top of the tower body. The lower end of the air inlets is liquid-sealed, so the exhaust gas will not escape from the lower end of the air inlets. The spraying components inside the tower body spray the exhaust gas, and the sprayed liquid enters the air inlets and then enters the liquid-sealed funnel for discharge.

[0017] Multiple air inlets can divert exhaust gas into the system. The exhaust gas passes through the heat absorption components in each air inlet, which lowers the temperature of the exhaust gas. At the same time, the liquid sprayed by the spray components enters the air inlet and cools the heat absorption components.

[0018] The above technical solution can promptly drain the spray liquid in the tower body and air inlet duct, preventing the spray liquid from accumulating in the tower body and air inlet duct, avoiding the heated spray liquid from becoming a heat source, and preventing secondary pollution caused by water vapor formed due to the accumulation of spray liquid.

[0019] The present invention is further configured such that the liquid-sealed funnel includes a funnel body, the funnel body is a shell structure with an upward opening, one side of the funnel body has an opening, the funnel body is provided with a baffle that can prevent the liquid in the funnel body from flowing to the opening side, the upper end of the baffle is set lower than the upper end of the funnel body, the baffle and the side wall of the funnel body form a liquid-sealed chamber, the lower end of the air inlet extends into the liquid-sealed chamber, the liquid outlet is set lower than the upper end of the baffle, and the diameter of the lower end of the air inlet is smaller than the diameter of its upper end.

[0020] By adopting the above technical solution: the spray liquid enters the liquid-sealed funnel after passing through the air inlet duct, and then falls into the water tank through the liquid-sealed funnel. The liquid-sealed chamber in the liquid-sealed funnel can store liquid, and the lower end of the air inlet duct extends into the liquid-sealed chamber to form a liquid seal on the drain port. This setting can prevent the exhaust gas entering the air inlet duct from escaping from the drain port, and will not block the discharge of the spray liquid.

[0021] The present invention is further configured such that the heat absorption component includes a rotatable shaft, the shaft being coaxially arranged with the air inlet duct, and a plurality of heat absorption plates being arranged along its circumference on the shaft, the heat absorption plates being correspondingly arranged with the air inlet, and the exhaust gas entering through the air inlet being able to blow the heat absorption component to rotate; the heat absorption component is spaced apart from the inner wall of the air inlet duct.

[0022] By adopting the above technical solution: after the high-temperature exhaust gas enters the air inlet duct, it is directly blown onto the heat absorption component, causing the heat absorption component to rotate. During the rotation of the heat absorption component, it can better exert its heat absorption and cooling effect. At the same time, the heat absorption component can also drive the spray liquid that enters it to treat the exhaust gas.

[0023] The present invention is further configured such that the lower end of the rotating shaft extends into the liquid-sealed chamber, and the lower end of the rotating shaft is provided with agitating blades.

[0024] By adopting the above technical solution: since the exhaust gas may contain various impurities, the impurities enter the liquid seal chamber with the spray liquid and are deposited in the liquid seal chamber. When too many impurities are deposited, the drain outlet may be blocked. Therefore, the rotating shaft drives the stirring blades to rotate. In this way, the stirring blades constantly stir the outlet position of the drain outlet to avoid the problem of impurity deposition and blockage. It cleverly utilizes the rotation function of the heat absorption component itself to realize the rotation of the stirring blades.

[0025] The present invention is further configured such that there are four air inlet ducts, and two air inlet pipes are also included, with one air inlet pipe connected to the air inlet on each of the two air inlet ducts.

[0026] The present invention is further configured such that there are two funnel bodies, each funnel body is elongated and has an opening at one end along its length. One funnel body is correspondingly arranged with the drain ports on the two air inlets. The funnel body is provided with two baffles, which are spaced apart along the length of the funnel body.

[0027] The invention is further configured such that a water tank is provided on the lower side of the liquid-sealed funnel, and the water flowing out of the opening of the funnel body falls into the water tank. It also includes a circulating water pump connecting the water tank and the spray assembly.

[0028] The present invention is further configured such that the upper end of the air inlet duct is provided with swirl vanes, which can change the flow direction of the liquid entering the air inlet duct.

[0029] By adopting the above technical solution, the spray liquid inside the tower enters the air inlet duct through the swirl blades, and the spray can be more dispersed into the air inlet duct through the swirl blades.

[0030] The invention is further configured such that it also includes a second spray tower, the upper end of which is provided with an air outlet, and the side wall of which is provided with an air inlet, the air inlet being connected to the air outlet at the upper end of the tower body, and the second spray tower being provided with a spray assembly and a grid.

[0031] By adopting the above technical solution, the exhaust gas is subjected to secondary spraying treatment through a second spray tower, and water vapor is filtered out through a grid.

[0032] The present invention is further configured such that the water tank includes a side water tank and a filter water tank, the water flowing out of the opening of the funnel body first enters the side water tank and then enters the filter water tank, the circulating water pump is connected to the filter water tank, and the side water tank and the filter water tank are connected by a pipe.

[0033] By adopting the above technical solution, it is helpful to cool and filter the spray liquid after use, thus preparing for the subsequent recycling of the spray liquid.

[0034] The beneficial effects of the present invention are as follows: (1) The tower body and the air inlet can discharge the spray liquid in time, and there will be no accumulation of spray liquid, avoiding the heated spray liquid from becoming a heat source, and avoiding secondary pollution caused by water vapor due to the accumulation of spray liquid; (2) The heat absorption component in the air inlet can cool down the high temperature exhaust gas; (3) The heat absorption component can simultaneously agitate the liquid seal chamber during rotation, avoiding the problem of impurities accumulating in the liquid seal chamber and clogging the lower end of the air inlet drain port. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the existing spray tower of the present invention.

[0037] Figure 2 This is a schematic diagram of the spray tower structure of the present invention. Figure 1 .

[0038] Figure 3 This is a schematic diagram of the spray tower structure of the present invention. Figure 2 .

[0039] Figure 4 This is an exploded view of the spray tower of the present invention.

[0040] Figure 5 This is a cross-sectional view of the spray tower of the present invention.

[0041] Figure 6 This is a schematic diagram of the tower structure of the present invention. Figure 1 .

[0042] Figure 7 This is a schematic diagram of the tower structure of the present invention. Figure 2 .

[0043] Figure 8 This is a schematic diagram of the structure of the water tank of the present invention.

[0044] Figure 9 This is a schematic diagram of the liquid-sealed funnel of the present invention.

[0045] Figure 10 This is a schematic diagram of the structure of the air inlet duct and air inlet pipe of the present invention.

[0046] Figure 11 This is a schematic diagram of the structure of the four air inlets of the present invention. Figure 1 .

[0047] Figure 12 This is a schematic diagram of the structure of the four air inlets of the present invention. Figure 2 .

[0048] Figure 13 This is a schematic diagram of the structure of the four air inlets of the present invention. Figure 3 .

[0049] Figure 14 This is a schematic diagram of the structure of the four air inlets, heat absorption components, and liquid seal funnel of the present invention.

[0050] Figure 15 This is a schematic diagram of the heat absorption component of the present invention.

[0051] Figure 16 This is a schematic diagram of the swirl blade of the present invention. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] For reference as follows Figures 1-16 The present invention will be described as follows:

[0054] Example: A spray tower for waste gas treatment includes a tower body 1, an air outlet 2 at the upper end of the tower body 1, and a spray assembly 3 inside the tower body 1. After the waste gas enters the tower body 1, it is treated by the spray assembly 3, which can effectively remove pollutants. Finally, the purified gas is discharged from the air outlet 2, thus achieving the purification treatment of the waste gas.

[0055] The lower end of the tower body 1 is connected to four air inlet ducts 4, and the bottom surface of the tower body 1 has four holes to connect the four air inlet ducts 4.

[0056] The air inlet duct 4 is a vertically arranged tubular structure. The upper end of the air inlet duct 4 is connected to the interior of the tower body 1, the lower end of the air inlet duct 4 is provided with a drain port 5, and the side of the air inlet duct 4 is provided with an air inlet 6. This design allows high-temperature exhaust gas to enter the air inlet duct 4 from the air inlet 6, then enter the tower body 1, and finally be discharged from the air outlet 2.

[0057] The number of air inlets 4 is set to four. On the one hand, it can increase the number of channels for exhaust gas to enter the tower body 1 and improve the efficiency of exhaust gas treatment. On the other hand, multiple air inlets 4 can divert the exhaust gas, so that the exhaust gas can be more evenly distributed in the tower body 1 and improve the treatment effect of the spray assembly 3 on the exhaust gas.

[0058] A liquid-sealing funnel 7 is provided on the lower side of the air inlet duct 4 to liquid seal the drain port 5. The presence of the liquid-sealing funnel 7 is of great significance, as it can effectively prevent the high-temperature exhaust gas entering the air inlet duct 4 from escaping from the drain port 5. This ensures that the exhaust gas can only enter the air inlet duct 4 from the air inlet 6 along a predetermined path, then enter the tower body 1 for treatment, and finally be discharged from the air outlet 2, avoiding exhaust gas leakage and improving the safety and reliability of exhaust gas treatment.

[0059] The liquid-sealed funnel 7, through its special structure and working principle, forms a physical barrier to prevent exhaust gas from escaping. When the spray liquid enters the air inlet duct 4, the liquid-sealed funnel 7 ensures that the spray liquid is discharged smoothly, while preventing the exhaust gas from flowing out in reverse, thus ensuring the stable operation of the entire exhaust gas treatment system.

[0060] The air inlet duct 4 is equipped with a heat absorption component 8. When high-temperature exhaust gas enters the air inlet duct 4, the heat absorption component 8 can quickly absorb the heat in the exhaust gas and reduce its temperature. This function is crucial for treating high-temperature exhaust gas, because if the high-temperature exhaust gas is not cooled, it may damage the spray assembly 3 and other equipment inside the tower body 1, and will also affect the exhaust gas treatment effect.

[0061] The heat absorption component 8 absorbs heat from the exhaust gas. The spray liquid passes through the heat absorption component 8 and carries away the heat from the heat absorption component 8, thus reducing the temperature of the exhaust gas.

[0062] After the liquid sprayed by the spray assembly 3 enters the air inlet duct 4, it can cool the heat absorption assembly 8. This is an interactive process; while purifying the exhaust gas, the spray liquid also cools the heat absorption assembly 8, ensuring its continuous and efficient operation. This not only extends the service life of the heat absorption assembly 8 but also further improves the efficiency and stability of exhaust gas treatment.

[0063] The spray tower can promptly discharge the spray liquid from the tower body 1 and the air inlet duct 4, preventing the spray liquid from accumulating in these areas. If the spray liquid accumulates in the tower body 1 and the air inlet duct 4, the heated spray liquid will become a heat source, continuously heating the exhaust gas and affecting the exhaust gas treatment effect.

[0064] Timely drainage of the spray liquid can also prevent the formation of water vapor due to the accumulation of spray liquid, thereby avoiding the problem of secondary pollution caused by water vapor carrying pollutants.

[0065] The design of multiple air inlets 4 allows for the diversion of exhaust gas, enabling it to be more evenly distributed within the tower body 1 and improving the treatment effect of the spray assembly 3. Simultaneously, the heat absorption components 8 within each air inlet 4 reduce the temperature of the exhaust gas, creating favorable conditions for the efficient operation of the spray assembly 3.

[0066] After the liquid sprayed by the spray assembly 3 enters the air inlet duct 4, it not only purifies the exhaust gas but also cools the heat absorption assembly 8, ensuring its continuous and efficient operation. This interactive process improves the efficiency and stability of the entire exhaust gas treatment system.

[0067] The spray assembly 3 consists of a distribution main pipe and branch pipes forming a mesh system, with nozzles installed on the branch pipes. This combination allows the spray liquid to be distributed more evenly within the tower, ensuring that each area receives sufficient spraying and improving the overall effect of waste gas treatment.

[0068] The liquid-sealed funnel 7 includes a funnel body 71, which is an upward-opening shell structure. The funnel body 71 is elongated, a design that better accommodates the layout of multiple air inlets 4, improving space utilization. One end of the funnel body 71 is open along its length, facilitating the flow of spray liquid from the liquid-sealed chamber 73 to the water tank. Inside the funnel body 71 is a baffle 72 (connected to the bottom wall and both side walls in the width direction of the funnel body 71) that prevents liquid from flowing towards the open side. The upper end of the baffle 72 is lower than the upper end of the funnel body 71, and the baffle 72 and the side walls of the funnel body 71 form the liquid-sealed chamber 73. The function of the liquid-sealed chamber 73 is to form a liquid seal by filling it with spray liquid, preventing high-temperature exhaust gas from the air inlet 4 from escaping from the drain port 5.

[0069] Two funnel bodies 71 are provided. One funnel body 71 is correspondingly set with the drain ports 5 on the two air inlets 4. The two air inlets 4 are arranged in the length direction of the funnel body 71, making the structure more compact.

[0070] The funnel body 71 is provided with two baffles 72, which are spaced apart along the length of the funnel body 71. The two baffles 72 and the side wall of the funnel body 71 form two liquid-sealed chambers 73, which correspond to the two air inlets 4 respectively. Each liquid-sealed chamber 73 can independently liquid-seal the corresponding air inlet 4, thereby improving the reliability of the liquid seal.

[0071] The lower end of the air inlet duct 4 extends into the liquid-sealed chamber 73, and the drain port 5 is positioned below the upper end of the baffle 72. This design ensures that the spray liquid in the air inlet duct 4 can smoothly enter the liquid-sealed chamber 73. When the liquid-sealed chamber 73 is full of spray liquid, the spray liquid will pass over the baffle 72 and flow from the opening side of the funnel body 71 to the water tank, thus achieving smooth discharge of the spray liquid.

[0072] The liquid seal funnel 7 has an ingenious structural design and fits tightly with the air inlet duct 4, which can effectively realize the liquid seal function and ensure the smooth discharge of the spray liquid, thus providing an important guarantee for the stable operation of the spray tower.

[0073] The diameter of the lower end of the air inlet duct 4 is smaller than the diameter of its upper end.

[0074] The heat absorption assembly 8 includes a rotatable shaft 81, which is coaxially arranged with the air inlet duct 4. This design ensures that the entire heat absorption assembly 8 is stably and symmetrically positioned within the air inlet duct 4. The coaxial arrangement allows the shaft 81 to rotate more smoothly, reducing wobbling and friction caused by misalignment, and improving the stability and reliability of the equipment.

[0075] The upper and lower ends of the rotating shaft 81 are connected to the inner wall of the air inlet duct 4 via a fixed bracket. The fixed bracket is fixedly connected to the air inlet duct 4, and the rotating shaft 81 is rotatably connected to the fixed bracket. The fixed bracket serves to fix the rotating shaft 81, ensuring that the rotating shaft 81 will not shift during operation. The fixed connection between the fixed bracket and the air inlet duct 4 ensures the strength of the connection and can withstand the force generated when the rotating shaft 81 rotates and the impact of exhaust gas. The rotatable connection between the rotating shaft 81 and the fixed bracket allows the rotating shaft 81 to rotate freely. Under the blowing of exhaust gas, the rotating shaft 81 can rotate flexibly, thereby driving the heat absorption plate 82 to rotate and improving the heat absorption efficiency.

[0076] Multiple heat-absorbing fins 82 are arranged around the circumference of the rotating shaft 81. These heat-absorbing fins 82 are evenly distributed around the rotating shaft 81 to maximize the contact area with the exhaust gas and improve the heat absorption effect. The arrangement of multiple heat-absorbing fins 82 can absorb more heat in a limited space, so that the temperature of the exhaust gas is reduced rapidly.

[0077] The heat-absorbing fins 82 are positioned corresponding to the air inlet 6. This design allows the high-temperature exhaust gas entering from the air inlet 6 to be directly blown onto the heat-absorbing fins 82, thereby driving the heat-absorbing assembly 8 to rotate. The flow of high-temperature exhaust gas provides the power for the rotation of the heat-absorbing assembly 8, eliminating the need for an additional drive device and saving energy.

[0078] The heat absorption component 8 is spaced apart from the inner wall of the air inlet duct 4. This space ensures sufficient flow space for the exhaust gas within the air inlet duct 4. If the heat absorption component 8 were tightly fitted to the inner wall of the air inlet duct 4, it would obstruct the flow of exhaust gas and reduce its treatment efficiency. The space allows the exhaust gas to flow smoothly between the heat absorption component 8 and the inner wall of the air inlet duct 4, ensuring that the exhaust gas can fully contact the heat absorption plate 82 and improve the heat absorption effect. The space also aids in heat dissipation. After absorbing heat from the exhaust gas, the heat absorption plate 82 transfers the heat to the rotating shaft 81 and the surrounding air. The space allows air to circulate between the heat absorption component 8 and the inner wall of the air inlet duct 4, carrying away the heat from the heat absorption plate 82 and improving heat dissipation efficiency. The space also reduces friction and wear. If the heat absorption component 8 were in direct contact with the inner wall of the air inlet duct 4, significant friction and wear would occur when the rotating shaft 81 rotates, reducing the equipment's lifespan. The space prevents this from happening and extends the equipment's lifespan.

[0079] Working principle of heat absorption component 8:

[0080] When high-temperature exhaust gas enters the air inlet duct 4 through the air inlet 6, the exhaust gas is directly blown onto the heat absorption fins 82 that are correspondingly positioned to the air inlet 6. Because the heat absorption fins 82 are positioned corresponding to the air inlet 6, the exhaust gas can have maximum contact with the heat absorption fins 82, transferring heat to them. After absorbing heat, the temperature of the heat absorption fins 82 rises.

[0081] Simultaneously, the flow of exhaust gas drives the heat-absorbing fins 82 to rotate, which in turn drives the rotating shaft 81 to rotate. The rotation of the shaft 81 ensures that the heat-absorbing fins 82 continuously come into contact with new exhaust gas, thus continuously absorbing heat. This dynamic heat absorption process improves heat absorption efficiency and can quickly reduce the temperature of the exhaust gas.

[0082] As the shaft 81 rotates, the heat on the heat-absorbing plate 82 is gradually transferred to the surrounding air and the shaft 81. Because the heat-absorbing component 8 is spaced apart from the inner wall of the air inlet duct 4, air can circulate in the gap, carrying away the heat on the heat-absorbing plate 82 and achieving heat dissipation.

[0083] Advantages of the heat absorption component 8:

[0084] No additional power required: The flow of exhaust gas drives the heat absorption component 8 to rotate, eliminating the need for an additional drive device, saving energy and reducing the operating cost of the equipment.

[0085] High-efficiency heat absorption: Multiple heat-absorbing plates 82 are correspondingly arranged with the air inlet 6, increasing the contact area with the exhaust gas and improving heat absorption efficiency. At the same time, the rotation of the shaft 81 allows the heat-absorbing plates 82 to continuously come into contact with new exhaust gas, further improving the heat absorption effect.

[0086] Excellent heat dissipation performance: The heat absorption component 8 is spaced apart from the inner wall of the air inlet duct 4, which ensures air circulation, improves heat dissipation efficiency, and prevents the heat absorption plate 82 from being damaged due to excessive temperature.

[0087] Simple structure: The heat absorption component 8 has a relatively simple structure, consisting of a rotating shaft 81, heat absorption plates 82 and a fixing frame, which is easy to manufacture and install, reducing the production cost of the equipment.

[0088] The heat-absorbing plate 82 is made of metal iron sheet.

[0089] When the high-temperature exhaust gas enters the air inlet duct 4 through the air inlet 6, it blows directly onto the heat absorption component 8. Due to the certain velocity and pressure of the exhaust gas, it provides power to the heat absorption component 8, causing it to rotate. This direct impact has several important aspects:

[0090] Initiation of rotation: The flow of high-temperature exhaust gas provides the initial power for the rotation of the heat absorption component 8. Once the heat absorption component 8 starts to rotate, it can continuously receive the impetus from the exhaust gas and maintain a stable rotational state.

[0091] Uniform heating: The exhaust gas is blown directly onto the heat absorption component 8, allowing the heat absorption plate 82 to be heated evenly by the exhaust gas. This ensures that the heat absorption plate 82 can effectively absorb heat in all parts, improving heat absorption efficiency.

[0092] Increased contact area: As the heat-absorbing component 8 rotates, the contact area between the heat-absorbing plate 82 and the exhaust gas continuously changes, thereby increasing the overall contact area. This allows more exhaust gas molecules to come into contact with the heat-absorbing plate 82, transferring heat to it and further improving the heat absorption effect.

[0093] Advantages of rotating heat absorption component 8:

[0094] Enhanced heat absorption and cooling effect:

[0095] Dynamic heat absorption: The rotation of the heat absorption component 8 keeps the heat absorption plate 82 in constant contact with new exhaust gas, avoiding localized overheating. This dynamic heat absorption process can more efficiently reduce the temperature of the exhaust gas because the heat absorption plate 82 is always in contact with the high-temperature exhaust gas, thus continuously absorbing heat.

[0096] Improving heat transfer efficiency: The rotating heat absorber 82 promotes heat conduction within itself. Because the heat absorber 82 continuously changes position during rotation, heat can be distributed more evenly across it, thus improving heat transfer efficiency. Simultaneously, rotation also helps transfer heat from the surface of the heat absorber 82 to the surrounding air, enhancing heat dissipation.

[0097] Optimized airflow distribution: The rotation of the heat absorption component 8 can also change the airflow distribution within the air inlet duct 4. The rotating heat absorption fins 82 can guide the flow of exhaust gas, making it more evenly distributed within the air inlet duct 4, thereby improving the contact efficiency between the exhaust gas and the heat absorption fins 82 and the spray liquid.

[0098] The spray liquid is used to treat the exhaust gas.

[0099] Enhanced mixing effect: When the heat-absorbing component 8 rotates, it moves the spray liquid that enters it. This movement allows the spray liquid to mix more thoroughly with the exhaust gas, improving the exhaust gas treatment effect. Under the action of the rotating heat-absorbing component 8, the spray liquid can better cover the surface of the exhaust gas, increasing the contact area between the exhaust gas and the spray liquid, thereby promoting the absorption and dissolution of pollutants.

[0100] Improving spraying efficiency: The rotation of the heat-absorbing component 8 allows for a more uniform distribution of the spray liquid, preventing localized accumulation of the spray liquid within the air inlet duct 4. This improves spraying efficiency, ensuring that exhaust gas in every part receives thorough spraying treatment. Simultaneously, the rotating heat-absorbing component 8 also helps the spray liquid better penetrate the exhaust gas, enhancing its purification effect.

[0101] Promoting Chemical Reactions: In some cases, the spray liquid reacts chemically with pollutants in the exhaust gas, thereby purifying the exhaust gas. The rotation of the heat-absorbing component 8 can promote this chemical reaction because it increases the contact time and contact area between the spray liquid and the exhaust gas, thus increasing the reaction rate. For example, in an alkaline spray tower, the alkaline substances in the spray liquid neutralize the acidic pollutants in the exhaust gas. The rotation of the heat-absorbing component 8 can make this reaction more complete, improving the efficiency of exhaust gas treatment.

[0102] After the high-temperature exhaust gas enters the air inlet duct 4, it blows directly onto the heat absorption component 8, causing the heat absorption component 8 to rotate. This rotation not only better plays the role of heat absorption and cooling, but also drives the spray liquid to treat the exhaust gas, thereby improving the exhaust gas treatment efficiency and performance of the spray tower.

[0103] The lower end of the rotating shaft 81 extends into the liquid-sealed chamber 73, and the lower end of the rotating shaft 81 is provided with agitator blades 9.

[0104] Risk of impurity deposition: Since the exhaust gas may contain various impurities, when the spray liquid carries these impurities into the liquid-sealed chamber 73, the impurities will gradually deposit in the chamber. If too many impurities are deposited, the drain port 5 may become blocked. Blockage of the drain port 5 will severely affect the normal operation of the spray tower, reduce exhaust gas treatment efficiency, and may even lead to equipment failure.

[0105] The function of the agitator blade 9: To solve the problem of impurities accumulating and clogging the drain outlet 5, the agitator blade 9 is installed. When the rotating shaft 81 rotates, it drives the agitator blade 9 to rotate as well. The agitator blade 9 continuously agitates the outlet of the drain outlet 5, making it difficult for impurities deposited at that location to accumulate. This effectively avoids the problem of impurities accumulating and clogging the outlet, ensuring that the drain outlet 5 remains unobstructed and that the spray liquid can be discharged smoothly.

[0106] The clever use of the rotating function of the heat-absorbing component 8: This technical solution ingeniously utilizes the rotation of the heat-absorbing component 8 itself to achieve the rotation of the agitator blades 9. No additional power source is required, saving energy and simplifying the equipment structure. When high-temperature exhaust gas enters the air inlet duct 4, it blows the heat-absorbing component 8 to rotate, causing the rotating shaft 81 to rotate, which in turn drives the agitator blades 9 at the lower end to rotate. This design fully embodies the concepts of energy conservation, environmental protection, and efficient resource utilization.

[0107] By setting a stirring blade 9 at the lower end of the rotating shaft 81 and using the rotation of the heat absorption component 8 to drive the stirring blade 9 to rotate, the problem of waste gas impurities accumulating and clogging the drain port 5 is effectively solved, and the reliability and stability of the spray tower are improved.

[0108] It also includes two air inlet pipes 10, one of which connects to the air inlet 6 on each of the two air inlet ducts 4. The air inlet pipe 10 acts as a bridge in the entire waste gas treatment system, transporting waste gas from an external source to the air inlet duct 4. This connection method allows waste gas to enter both air inlet ducts 4 simultaneously, achieving waste gas diversion. The diverted waste gas can be more evenly distributed within the spray tower, improving the contact efficiency between the waste gas and the spray assembly 3 and the heat absorption assembly 8, thereby enhancing the waste gas treatment effect.

[0109] The upper end of the air inlet duct 4 is equipped with swirl vanes 11, which can change the flow direction of the liquid entering the air inlet duct 4. It also includes a disc body coaxially arranged with the air inlet duct 4. The swirl vanes 11 are located on the side of the disc body and arranged radially along the disc body. Several swirl vanes 11 are evenly spaced around the circumference of the disc body, and the swirl vanes 11 are inclined. It also includes an annular fixing ring. One end of the swirl vanes 11 is fixedly connected to the disc body, and the other end of the swirl vanes 11 is fixedly connected to the fixing ring. The fixing ring is fixedly connected to the inner wall of the air inlet duct 4. By adopting the above technical solution, the spray liquid in the tower body 1 enters the air inlet duct 4 through the swirl vanes 11. The swirl vanes 11 enable the spray liquid to enter the air inlet duct 4 more dispersedly. This dispersed spraying method can increase the contact area between the spray liquid and the exhaust gas in the air inlet duct 4, improving the exhaust gas treatment effect. The spray liquid is more evenly distributed in the air inlet duct 4, which can better absorb pollutants in the exhaust gas and achieve more efficient exhaust gas purification. The dispersed spray liquid allows for more thorough contact with the exhaust gas, enabling pollutants in the exhaust gas to be absorbed and dissolved more quickly. This helps improve the efficiency of exhaust gas treatment, reduces the residence time of exhaust gas in the spray tower, and improves the overall efficiency of the exhaust gas treatment system.

[0110] A water tank is provided on the lower side of the liquid-sealed funnel 7. Water flowing out of the opening of the funnel body 71 falls into the water tank. It also includes a circulating water pump that connects the water tank and the spray assembly 3.

[0111] The water tank includes a side water tank 15 and a filter water tank 16. The water flowing out of the opening of the funnel body 71 first enters the side water tank 15 and then enters the filter water tank 16. The circulating water pump is connected to the filter water tank 16, and the side water tank 15 and the filter water tank 16 are connected by a pipe.

[0112] A water tank is located on the lower side of the liquid-sealed funnel 7, and this water tank plays a crucial role in the entire spray tower system. It is responsible for receiving the water flowing out of the liquid-sealed funnel 7, i.e., the used spray liquid. The water tank includes a side water tank 15 and a filter water tank 16. The water flowing out of the opening of the funnel body 71 first enters the side water tank 15, and then enters the filter water tank 16. This step-by-step design has a clear purpose and advantages. The water flowing out of the liquid-sealed funnel 7 first enters the side water tank 15. The side water tank 15 serves as a preliminary collection and buffer. The water then flows from the side water tank 15 through a pipe into the filter water tank 16. A circulating water pump is connected to the filter water tank 16. This means that the water treated by the filter water tank 16 can be transported back to the spray assembly 3 under the action of the circulating water pump, realizing the recycling of the spray liquid.

[0113] In this process, the side water tank 15 and the filter water tank 16 help cool the used spray liquid. When the high-temperature exhaust gas comes into contact with the spray liquid, the spray liquid absorbs heat from the exhaust gas and its temperature rises. By first introducing the spray liquid into the side water tank 15 and the filter water tank 16, the spray liquid can exchange heat with the surrounding environment in these two tanks, gradually reducing its temperature. This avoids the spray liquid from being too hot for reuse, which would affect the exhaust gas treatment effect, and also reduces the risk of secondary pollution caused by steam generated due to excessively high temperatures.

[0114] The filter tank 16 filters the spray liquid. During the waste gas treatment process, the spray liquid may carry some impurities and pollutants from the waste gas. The filtration effect of the filter tank 16 removes these impurities and pollutants, making the spray liquid cleaner and improving its recycling efficiency. When the filtered spray liquid is reused for waste gas treatment, it can better absorb and dissolve pollutants, thus improving the quality of waste gas treatment.

[0115] The aforementioned cooling and filtration processes prepare the system for subsequent recycling of the spray solution. Recycling the spray solution conserves water resources and reduces waste gas treatment costs. Furthermore, the treated spray solution functions more stably, improving the overall operating efficiency and reliability of the spray tower system.

[0116] It also includes a second spray tower 12, with an air outlet 2 at the upper end of the second spray tower 12 and an air inlet 13 on the side wall of the second spray tower 12. The air inlet 13 is connected to the air outlet 2 at the upper end of the tower body 1. The second spray tower 12 is equipped with a spray assembly 3 and a grid 14.

[0117] The purpose of introducing the second spray tower 12 is to further improve the waste gas treatment effect. During the waste gas treatment process, the waste gas treated by the first spray tower (i.e., the aforementioned spray tower) may still contain a certain amount of pollutants, or some impurities such as water vapor that have not been completely removed. The introduction of the second spray tower 12 allows for secondary spray treatment of the waste gas, ensuring that the waste gas reaches a higher purification standard.

[0118] The second spray tower 12 is equipped with a spray assembly 3 and a bar screen 14. The spray assembly 3 functions similarly to the spray assembly 3 in the first spray tower, purifying the waste gas by spraying a spray liquid into contact with the waste gas and absorbing pollutants in the waste gas. The bar screen 14 is mainly used to filter out water vapor in the waste gas.

[0119] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spray tower for treating waste gas, comprising a tower body, an air outlet at the upper end of the tower body, and a spray assembly inside the tower body, characterized in that: The lower end of the tower body is connected to multiple air inlets, the upper end of the air inlets is connected to the interior of the tower body, the lower end of the air inlets is provided with a drain port, and the side of the air inlets is provided with an air inlet. The lower side of the air inlet duct is equipped with a liquid seal funnel that can liquid seal the drain port; The air inlet duct is equipped with heat absorption components; The heat absorption assembly includes a rotatable shaft, which is coaxially arranged with the air inlet duct. Multiple heat absorption plates are arranged along the circumference of the shaft, and the heat absorption plates are arranged corresponding to the air inlet. The exhaust gas entering through the air inlet can blow the heat absorption assembly to rotate. The heat absorption assembly is spaced apart from the inner wall of the air inlet duct. The lower end of the rotating shaft extends into the liquid-sealed funnel, and the lower end of the rotating shaft is equipped with stirring blades.

2. A spray tower for waste gas treatment according to claim 1, characterized in that: The liquid-sealed funnel includes a funnel body, which is a shell structure with an upward opening. The funnel body has an opening on one side. A baffle is provided inside the funnel body to prevent the liquid inside the funnel body from flowing to the opening side. The upper end of the baffle is lower than the upper end of the funnel body. The baffle and the side wall of the funnel body form a liquid-sealed chamber. The lower end of the air inlet extends into the liquid-sealed chamber. The liquid outlet is lower than the upper end of the baffle. The diameter of the lower end of the air inlet is smaller than the diameter of its upper end.

3. A spray tower for waste gas treatment according to claim 2, characterized in that: There are four air inlets, and two air inlet pipes are also included. One air inlet pipe is connected to the air inlet on each of the two air inlets.

4. A spray tower for waste gas treatment according to claim 3, characterized in that: There are two funnel bodies. The funnel bodies are long and narrow, with one end open along the length direction. One funnel body is set to correspond to the drain port on the two air inlets. There are two baffles inside the funnel body, and the two baffles are spaced apart along the length direction of the funnel body.

5. A spray tower for waste gas treatment according to any one of claims 2-4, characterized in that: A water tank is provided on the lower side of the liquid-sealed funnel. Water flowing out of the opening of the funnel body falls into the water tank. It also includes a circulating water pump that connects the water tank and the spray assembly.

6. A spray tower for waste gas treatment according to claim 5, characterized in that: The upper end of the air inlet is equipped with swirl vanes, which can change the flow direction of the liquid entering the air inlet.

7. A spray tower for waste gas treatment according to claim 5, characterized in that: It also includes a second spray tower, which has an air outlet at its upper end and an air inlet on its side wall. The air inlet is connected to the air outlet at the upper end of the tower body. The second spray tower is equipped with spray components and a grid.

8. A spray tower for waste gas treatment according to claim 5, characterized in that: The water tank includes a side water tank and a filter water tank. The water flowing out of the opening of the funnel body first enters the side water tank and then enters the filter water tank. The circulating water pump is connected to the filter water tank, and the side water tank and the filter water tank are connected by pipes.

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