Spray tower for waste gas treatment

Abstract

The spray tower comprises a tower body, an air outlet is formed in the upper end of the tower body, a spray assembly is arranged in the tower body, a plurality of air inlet barrels are connected to the lower end of the tower body, the upper ends of the air inlet barrels are communicated with the interior of the tower body, a liquid outlet is formed in the lower end of each air inlet barrel, and a liquid outlet is formed in the lower end of each liquid outlet. An air inlet is formed in the side surface of the air inlet cylinder; the lower side of the air inlet cylinder is provided with a liquid sealing funnel capable of conducting liquid sealing on the liquid outlet. A heat absorption assembly is arranged in the air inlet barrel. The tower body and the air inlet barrel can discharge the spraying liquid in time, the spraying liquid cannot be accumulated, the heated spraying liquid is prevented from becoming a heating source, and secondary pollution caused by water vapor formed by the accumulated spraying liquid is avoided; the heat absorption assembly in the air inlet barrel can be used for cooling high-temperature waste gas; the heat absorption assembly can stir the liquid seal chamber while rotating, and the problem that a liquid outlet in the lower end of the air inlet barrel is blocked due to impurity deposition in the liquid seal chamber is solved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas purification and treatment equipment, and in particular to a spray tower for waste gas treatment. Background Art

[0002] Spray tower exists as a treatment equipment for environmental waste gas treatment. According to the working principle, it is divided into circulating water spray tower, alkali spray tower, and acid spray tower. According to the tower material, it is divided into FRP spray tower, PP spray tower, and stainless steel spray tower. Choose reasonable spray material and spray process according to the different properties of waste gas.

[0003] An existing spray tower, reference Figure 1 As shown, it mainly includes a tower body. The exhaust gas enters from the lower end of the tower body, is processed by the spray assembly in the tower body, and is discharged from the upper end of the tower body. The bottom of the tower body is a water tank structure. The spray liquid falls into the water tank during the spraying process. At the same time, the liquid in the water tank is also supplied to the spray assembly through 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 (about 200°C): 1. Steam carries impurities and causes secondary pollution When the waste gas is high-temperature waste gas, the waste gas enters the tower body, which will rapidly heat the spray liquid. As the working time increases, the temperature of the liquid in the water tank continues to rise, and steam may be generated due to the excessive temperature. These steam will carry impurities in the spray liquid during the upward movement, causing secondary pollution. This not only reduces the effect of waste gas treatment, but may also cause greater harm to the surrounding environment.

[0005] 2. Poor heat dissipation and cooling capabilities Since the water tank at the bottom of the tower is connected to the tower body, the high-temperature exhaust gas will directly heat the liquid in the water tank after entering the tower body. This makes it difficult for the liquid in the water tank to drop after the temperature rises, and the heat dissipation and cooling capacity is extremely poor. Even after the high-temperature exhaust gas is stopped, it takes a long time for the liquid in the water tank to cool naturally, which seriously affects the continuous working efficiency and stability of the spray tower.

[0006] In summary, the problems existing in the existing spray tower when treating high-temperature exhaust gas need to be solved urgently to improve the effect of exhaust gas treatment and the reliability of the equipment. Summary of the invention

[0007] In view of the problems pointed out in the background technology, the present invention proposes a spray tower for waste gas treatment to solve the above technical problems.

[0008] The technical solution of the present invention is achieved in this way: A spray tower for waste gas treatment comprises a tower body, an air outlet is arranged at the upper end of the tower body, and a spray assembly is arranged inside the tower body. The lower end of the tower body is connected to a plurality of air inlet tubes, the upper end of the air inlet tubes is communicated with the interior of the tower body, the lower end of the air inlet tubes is provided with a liquid discharge port, and the side of the air inlet tubes is provided with an air inlet; A liquid sealing funnel capable of liquid-sealing the drain port is provided on the lower side of the air inlet cylinder; A heat absorption component is arranged inside the air inlet cylinder.

[0009] 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 upper end of the tower body. The lower end of the air inlet is liquid-sealed, so the exhaust gas will not escape from the lower end of the air inlet. The spray assembly in the tower body sprays the exhaust gas, and the sprayed liquid enters the air inlet and then enters the liquid-sealed funnel for discharge.

[0010] Multiple air inlets can serve to divert the exhaust gas so that the exhaust gas passes through the heat absorption component in each air inlet, and the temperature of the exhaust gas is reduced by the heat absorption component. At the same time, the liquid sprayed by the spray component enters the air inlet and can cool the heat absorption component.

[0011] The above technical solution can discharge the spray liquid in the tower body and the air inlet tube in time, and the spray liquid will not accumulate in the tower body and the air inlet tube, so as to avoid the heated spray liquid from becoming a heat source and avoid secondary pollution caused by the formation of water vapor due to the accumulation of spray liquid.

[0012] The present invention is further configured as follows: the liquid-sealed funnel comprises a funnel body, the funnel body is a shell structure that is opened upward, one side of the funnel body is opened, and the funnel body is provided with a baffle that can prevent the liquid in the funnel body from flowing toward the opening side, the upper end of the baffle is arranged 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 tube extends into the liquid-sealed chamber, the drain port is arranged lower than the upper end of the baffle, and the diameter of the lower end of the air inlet tube is smaller than the diameter of its upper end.

[0013] By adopting the above technical solution: the spray liquid enters the liquid sealing funnel after passing through the air inlet cylinder, and then falls into the water tank through the liquid sealing funnel. The liquid sealing chamber in the liquid sealing funnel can store liquid, and the lower end of the air inlet cylinder extends into the liquid sealing chamber to form a liquid seal for the liquid discharge port. This arrangement can prevent the exhaust gas entering the air inlet cylinder from escaping from the liquid discharge port, and will not block the discharge of the spray liquid.

[0014] The present invention is further configured such that the heat absorption component includes a rotatable shaft, the shaft is coaxially arranged with the air inlet cylinder, a plurality of heat absorption sheets are arranged on the shaft along its circumference, the heat absorption sheets are arranged corresponding to the air inlet, and the exhaust gas entering from the air inlet can drive the heat absorption component to rotate; the heat absorption component is spaced apart from the inner wall of the air inlet cylinder.

[0015] By adopting the above technical solution: after the high-temperature exhaust gas enters the air inlet tube, it is directly blown to the heat absorption component, causing the heat absorption component to rotate. The heat absorption component can better play its heat absorption and cooling role during rotation. At the same time, the heat absorption component can also drive the spray liquid entering it to treat the exhaust gas.

[0016] The present invention is further configured such that the lower end of the rotating shaft extends into the liquid seal chamber, and the lower end of the rotating shaft is provided with a stirring blade.

[0017] 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 there are too many deposited impurities, the drain port may be blocked. Therefore, the stirring blades are driven to rotate by the rotating shaft. In this way, the outlet position of the drain port is stirred by the stirring blades at all times to avoid the problem of impurity deposition and blockage. The rotation function of the heat absorption component itself is cleverly used to realize the rotation of the stirring blades.

[0018] The present invention is further configured such that four air inlet cylinders are provided, and further comprises two air inlet pipes, wherein one air inlet pipe is respectively connected to the air inlets on the two air inlet cylinders.

[0019] The present invention is further configured such that two funnel bodies are provided, the funnel bodies are in an elongated shape, one end of the funnel body in the length direction is opened, one funnel body is provided corresponding to the discharge ports on the two air inlet tubes, two baffles are provided in the funnel body, and the two baffles are provided at intervals in the length direction of the funnel body.

[0020] The present invention is further configured such that a water tank is provided at the lower side of the liquid-sealed funnel, and water flowing out of the opening of the funnel body falls into the water tank, and also includes a circulating water pump connecting the water tank and the spray assembly.

[0021] The present invention is further configured such that a swirl blade is disposed at the upper end of the air inlet cylinder, and the swirl blade can change the flow direction of the liquid entering the air inlet cylinder.

[0022] By adopting the above technical solution: the spray liquid in the tower body enters the air inlet tube through the swirl blades, and the swirl blades can make the spray enter the air inlet tube in a more dispersed manner.

[0023] The present invention is further configured as follows: the second spray tower is further provided with an air outlet at the upper end thereof, an air inlet is provided on the side wall thereof, the air inlet is connected to the air outlet at the upper end of the tower body, and a spray assembly and a grille are provided in the second spray tower.

[0024] By adopting the above technical solution: the waste gas is subjected to secondary spraying treatment through the second spray tower, and the water vapor is filtered out through the grid net.

[0025] 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 from 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 pipeline.

[0026] By adopting the above technical solution, it is helpful to cool down and filter the used spray liquid, so as to prepare for the subsequent recycling of the spray liquid.

[0027] By adopting the above technical scheme, 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, thus preventing the heated spray liquid from becoming a heat source and preventing the formation of water vapor due to the accumulation of spray liquid and causing secondary pollution; (2) the heat absorption component in the air inlet can cool the high-temperature exhaust gas; (3) the heat absorption component can simultaneously stir the liquid seal chamber during rotation, thus preventing the problem of impurities deposited in the liquid seal chamber and blocking the discharge port at the lower end of the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a structural schematic diagram of the existing spray tower of the present invention.

[0030] Figure 2 The structure of the spray tower of the present invention is shown in FIG. Figure 1 .

[0031] Figure 3 The structure of the spray tower of the present invention is shown in FIG. Figure 2 .

[0032] Figure 4 It is a schematic diagram of the decomposition of the spray tower of the present invention.

[0033] Figure 5 It is a cross-sectional view of the spray tower of the present invention.

[0034] Figure 6 The structure of the tower body of the present invention is shown in FIG. Figure 1 .

[0035] Figure 7 The structure of the tower body of the present invention is shown in FIG. Figure 2 .

[0036] Figure 8 It is a structural schematic diagram of the water tank of the present invention.

[0037] Fig. 9 It is a structural schematic diagram of the liquid sealing funnel of the present invention.

[0038] Fig.10 It is a schematic structural diagram of the air inlet cylinder and the air inlet pipe of the present invention.

[0039] Fig.11 The structure of the four air inlet tubes of the present invention is shown in FIG. Figure 1 .

[0040] Fig.12 The structure of the four air inlet tubes of the present invention is shown in FIG. Figure 2 .

[0041] Fig.13 The structure of the four air inlet tubes of the present invention is shown in FIG. Figure 3 .

[0042] Fig.14 It is a schematic structural diagram of four air inlet tubes, a heat absorption component, and a liquid sealing funnel of the present invention.

[0043] Fig.15 It is a schematic structural diagram of the heat absorption component of the present invention.

[0044] Fig.16 It is a schematic diagram of the structure of the swirl blade of the present invention. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] For reference Figure 1-Figure 16 The present invention is described: Embodiment: A spray tower for waste gas treatment includes a tower body 1, an air outlet 2 is provided at the upper end of the tower body 1, and a spray assembly 3 is provided inside the tower body 1. After the waste gas enters the tower body 1, it is treated by the spray assembly 3 to effectively remove pollutants therein, and finally the purified gas is discharged from the air outlet 2, thereby achieving purification of the waste gas.

[0047] The lower end of the tower body 1 is connected to four air inlet tubes 4 , and the bottom surface of the tower body 1 is provided with four holes for connecting the four air inlet tubes 4 .

[0048] The air inlet cylinder 4 is a vertically arranged tubular structure, the upper end of which is connected to the interior of the tower body 1, the lower end of which is provided with a drain port 5, and the side of which is provided with an air inlet port 6. This design allows high-temperature exhaust gas to enter the air inlet cylinder 4 from the air inlet port 6, then enter the tower body 1, and finally be discharged from the air outlet port 2.

[0049] 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 play a role in diverting the exhaust gas so that the exhaust gas can be more evenly distributed in the tower body 1, thereby improving the treatment effect of the spray assembly 3 on the exhaust gas.

[0050] A liquid sealing funnel 7 is provided on the lower side of the air inlet cylinder 4 to seal the drain port 5. The existence of the liquid sealing funnel 7 is of great significance, as it can effectively prevent the high-temperature exhaust gas entering the air inlet cylinder 4 from escaping from the drain port 5. This ensures that the exhaust gas can only enter the air inlet cylinder 4 from the air inlet 6 according to a predetermined path, then enter the tower body 1 for treatment, and finally be discharged from the air outlet 2, thereby avoiding leakage of the exhaust gas and improving the safety and reliability of exhaust gas treatment.

[0051] The liquid-sealed funnel 7 forms a physical barrier to prevent the exhaust gas from escaping through its special structure and working principle. When the spray liquid enters the air inlet 4, the liquid-sealed funnel 7 can ensure that the spray liquid is discharged smoothly while preventing the exhaust gas from flowing out in the opposite direction, thereby ensuring the stable operation of the entire exhaust gas treatment system.

[0052] A heat absorbing component 8 is provided inside the air inlet 4. When the high-temperature exhaust gas enters the air inlet 4, the heat absorbing component 8 can quickly absorb the heat in the exhaust gas and reduce the temperature of the exhaust gas. This function is very important for treating high-temperature exhaust gas, because if the high-temperature exhaust gas is not cooled, it may cause damage to the spray component 3 and other equipment inside the tower body 1, and also affect the effect of exhaust gas treatment.

[0053] The heat absorbing component 8 absorbs the heat in the exhaust gas, and the spray liquid passes through the heat absorbing component 8 and then takes away the heat of the heat absorbing component 8, thereby reducing the temperature of the exhaust gas.

[0054] After the liquid sprayed by the spray component 3 enters the air inlet 4, it can cool down the heat absorption component 8. This is an interactive process. While the spray liquid purifies the exhaust gas, it can also cool down the heat absorption component 8 to ensure the continuous and efficient operation of the heat absorption component 8. This can not only increase the service life of the heat absorption component 8, but also further improve the efficiency and stability of exhaust gas treatment.

[0055] The spray tower can discharge the spray liquid in the tower body 1 and the air inlet cylinder 4 in time to avoid the spray liquid accumulating in the tower body 1 and the air inlet cylinder 4. If the spray liquid accumulates in the tower body 1 and the air inlet cylinder 4, the heated spray liquid will become a heat source, continuously heating the exhaust gas and affecting the exhaust gas treatment effect.

[0056] Timely discharge 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.

[0057] The design of multiple air inlets 4 can divert the exhaust gas into the tower body 1, so that the exhaust gas can be more evenly distributed in the tower body 1, thereby improving the exhaust gas treatment effect of the spray assembly 3. At the same time, the heat absorption assembly 8 in each air inlet 4 can reduce the temperature of the exhaust gas, creating favorable conditions for the efficient operation of the spray assembly 3.

[0058] After the liquid sprayed by the spraying component 3 enters the air inlet 4, it can not only purify the exhaust gas, but also cool the heat absorbing component 8, thereby ensuring the continuous and efficient operation of the heat absorbing component 8. This interactive process improves the efficiency and stability of the entire exhaust gas treatment system.

[0059] The spray assembly 3 is composed of a distribution main pipe and branch pipes to form a network system, and then nozzles are installed on the branch pipes. This combination can make the spray liquid more evenly distributed in the tower, ensuring that each area can be fully sprayed, and improving the overall effect of exhaust gas treatment.

[0060] The liquid-sealed funnel 7 includes a funnel body 71, which is a shell structure with an upward opening. The funnel body 71 is in an elongated shape. This elongated design can better adapt to the layout of multiple air inlets 4 and improve space utilization. One end of the funnel body 71 in the length direction is open, which is convenient for the spray liquid to flow out of the liquid-sealed chamber 73 and flow to the water tank. The funnel body 71 is provided with a baffle 72 (the baffle 72 is connected to the bottom wall and the two side walls in the width direction of the funnel body 71) that can prevent the liquid in the funnel body 71 from flowing to the opening side. The upper end of the baffle 72 is set lower than the upper end of the funnel body 71, and the baffle 72 and the side walls of the funnel body 71 form a liquid-sealed chamber 73. The function of the liquid-sealed chamber 73 is to form a liquid seal by filling it with spray liquid to prevent the high-temperature exhaust gas in the air inlet 4 from escaping from the drain port 5.

[0061] There are two funnel bodies 71 , one funnel body 71 is arranged corresponding to the liquid discharge ports 5 on the two air inlet tubes 4 , and the two air inlet tubes 4 are arranged in the length direction of the funnel body 71 , making the structure more compact.

[0062] Two baffles 72 are provided in the funnel body 71, and the two baffles 72 are spaced apart in the length direction of the funnel body 71. The two baffles 72 and the side wall of the funnel body 71 enclose two liquid-sealed chambers 73 corresponding to the two air inlet cylinders 4. Each liquid-sealed chamber 73 can independently perform liquid sealing on the corresponding air inlet cylinder 4, thereby improving the reliability of the liquid seal.

[0063] The lower end of the air inlet cylinder 4 extends into the liquid seal chamber 73, and the liquid discharge port 5 is arranged below the upper end of the baffle 72. This design ensures that the spray liquid in the air inlet cylinder 4 can smoothly enter the liquid seal chamber 73. When the liquid seal chamber 73 is filled with the 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, thereby achieving smooth discharge of the spray liquid.

[0064] The liquid sealing funnel 7 has an ingenious structural design and cooperates closely with the air inlet tube 4, which can effectively realize the liquid sealing function and ensure the smooth discharge of the spray liquid, thus providing an important guarantee for the stable operation of the spray tower.

[0065] The diameter of the lower end of the air inlet cylinder 4 is smaller than the diameter of the upper end thereof.

[0066] The heat absorption assembly 8 includes a rotatable shaft 81, which is coaxially arranged with the air inlet cylinder 4. This design ensures that the entire heat absorption assembly 8 is stably and symmetrically positioned in the air inlet cylinder 4. The coaxial arrangement enables the shaft 81 to rotate more smoothly, reduces shaking and friction caused by different axes, and improves the stability and reliability of the device.

[0067] The upper and lower ends of the rotating shaft 81 are connected to the inner wall of the air inlet cylinder 4 through a fixed frame, the fixed frame is fixedly connected to the air inlet cylinder 4, and the rotating shaft 81 is rotatably connected to the fixed frame. The fixed frame plays a role in fixing the rotating shaft 81 to ensure that the rotating shaft 81 will not be displaced during operation. The fixed frame is fixedly connected to the air inlet cylinder 4 to ensure the firmness of the connection and to withstand the force generated when the rotating shaft 81 rotates and the impact of the exhaust gas. The rotating shaft 81 is rotatably connected to the fixed frame, and this connection method allows the rotating shaft 81 to rotate freely. Under the blowing of the exhaust gas, the rotating shaft 81 can rotate flexibly, thereby driving the heat absorption sheet 82 to rotate and improving the heat absorption efficiency.

[0068] A plurality of heat absorbing sheets 82 are arranged on the rotating shaft 81 along its circumference. The heat absorbing sheets 82 are evenly distributed around the rotating shaft 81, which can maximize the contact area with the exhaust gas and improve the heat absorption effect. The arrangement of the plurality of heat absorbing sheets 82 can absorb more heat in a limited space and rapidly reduce the temperature of the exhaust gas.

[0069] The heat absorbing sheet 82 is arranged corresponding to the air inlet 6. The purpose of this design is to allow the high-temperature exhaust gas entering from the air inlet 6 to blow directly onto the heat absorbing sheet 82, thereby driving the heat absorbing component 8 to rotate. The flow of high-temperature exhaust gas provides power for the rotation of the heat absorbing component 8, without the need for an additional driving device, saving energy.

[0070] The heat absorption component 8 is spaced apart from the inner wall of the air inlet cylinder 4. The spacer can ensure the flow space of the exhaust gas in the air inlet cylinder 4. If the heat absorption component 8 is tightly fitted to the inner wall of the air inlet cylinder 4, the flow of the exhaust gas will be hindered, and the exhaust gas treatment efficiency will be reduced. The existence of the spacer allows the exhaust gas to flow smoothly between the heat absorption component 8 and the inner wall of the air inlet cylinder 4, ensuring that the exhaust gas can fully contact the heat absorption sheet 82, thereby improving the heat absorption effect. The spacer helps to dissipate heat. After the heat absorption sheet 82 absorbs the heat in the exhaust gas, it will transfer the heat to the rotating shaft 81 and the surrounding air. The spacer allows the air to circulate between the heat absorption component 8 and the inner wall of the air inlet cylinder 4, taking away the heat on the heat absorption sheet 82, thereby improving the heat dissipation efficiency. The spacer can also reduce friction and wear. If the heat absorption component 8 is in direct contact with the inner wall of the air inlet cylinder 4, greater friction and wear will be generated when the rotating shaft 81 rotates, thereby reducing the service life of the equipment. The existence of the spacer can avoid this situation and extend the service life of the equipment.

[0071] Working principle of heat absorption component 8: When the high-temperature exhaust gas enters the air inlet 4 from the air inlet 6, the exhaust gas is directly blown onto the heat absorbing sheet 82 arranged corresponding to the air inlet 6. Since the heat absorbing sheet 82 is arranged corresponding to the air inlet 6, the exhaust gas can contact the heat absorbing sheet 82 to the greatest extent and transfer heat to the heat absorbing sheet 82. After the heat absorbing sheet 82 absorbs the heat, the temperature rises.

[0072] At the same time, the flow of exhaust gas drives the heat absorbing sheet 82 to rotate, thereby driving the rotating shaft 81 to rotate. The rotation of the rotating shaft 81 allows the heat absorbing sheet 82 to continuously contact new exhaust gas and continuously absorb heat. This dynamic heat absorption process improves the heat absorption efficiency and can quickly reduce the temperature of the exhaust gas.

[0073] As the shaft 81 rotates, the heat on the heat absorbing sheet 82 is gradually transferred to the surrounding air and the shaft 81. Since the heat absorbing assembly 8 is spaced apart from the inner wall of the air inlet cylinder 4, air can flow through the space and take away the heat on the heat absorbing sheet 82 to achieve heat dissipation.

[0074] Advantages of heat absorption components 8: No additional power is required: the flow of exhaust gas is used to drive the heat absorption component 8 to rotate, and no additional driving device is required, which saves energy and reduces the operating cost of the equipment.

[0075] Efficient heat absorption: Multiple heat absorbing sheets 82 are arranged corresponding to the air inlet 6, which increases the contact area with the exhaust gas and improves the heat absorption efficiency. At the same time, the rotation of the shaft 81 enables the heat absorbing sheets 82 to continuously contact with new exhaust gas, further improving the heat absorption effect.

[0076] Good heat dissipation performance: The heat absorption component 8 is spaced apart from the inner wall of the air inlet tube 4, which ensures the circulation of air, improves the heat dissipation efficiency, and avoids the heat absorption sheet 82 from being damaged due to excessive temperature.

[0077] Simple structure: The structure of the heat absorption component 8 is relatively simple, consisting of a rotating shaft 81, a heat absorption sheet 82 and a fixing frame, which is easy to manufacture and install, thereby reducing the production cost of the equipment.

[0078] The heat absorbing sheet 82 is made of a metal iron sheet.

[0079] When the high-temperature exhaust gas enters the air inlet 4 from the air inlet 6, it will be blown directly to the heat absorption component 8. Since the exhaust gas has a certain flow rate and pressure, it can provide power for the heat absorption component 8 to rotate. This direct impact has the following important aspects: Start rotation: The flow of high-temperature exhaust gas provides 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 push of the exhaust gas and maintain a stable rotation state.

[0080] Uniform heating: the exhaust gas is directly blown to the heat absorbing component 8, so that the heat absorbing sheet 82 can be evenly heated by the exhaust gas. This ensures that the heat absorbing sheet 82 can effectively absorb heat at all parts, thereby improving the heat absorption efficiency.

[0081] Increase contact area: As the heat absorption assembly 8 rotates, the contact area between the heat absorption sheet 82 and the exhaust gas changes continuously, thereby increasing the overall contact area. This allows more exhaust gas molecules to contact the heat absorption sheet 82, transferring heat to the heat absorption sheet 82, further improving the heat absorption effect.

[0082] Advantages of the rotation of the heat absorbing component 8: Enhance heat absorption and cooling effect: Dynamic heat absorption: The rotation of the heat absorption component 8 allows the heat absorption sheet 82 to continuously contact new exhaust gas, thus avoiding local overheating. This dynamic heat absorption process can more efficiently reduce the temperature of the exhaust gas, because the heat absorption sheet 82 can always contact the exhaust gas with a higher temperature, thereby continuously absorbing heat.

[0083] Improve heat transfer efficiency: The rotating heat absorbing sheet 82 can promote the conduction of heat inside the heat absorbing sheet 82. Since the heat absorbing sheet 82 will constantly change its position during the rotation process, the heat can be more evenly distributed on the heat absorbing sheet 82, thereby improving the heat transfer efficiency. At the same time, the rotation also helps the heat to be transferred from the surface of the heat absorbing sheet 82 to the surrounding air, thereby enhancing the heat dissipation effect.

[0084] Optimizing airflow distribution: The rotation of the heat absorption assembly 8 can also change the airflow distribution in the air inlet cylinder 4. The rotating heat absorption sheet 82 can guide the flow of the exhaust gas so that it is more evenly distributed in the air inlet cylinder 4, thereby improving the contact efficiency between the exhaust gas and the heat absorption sheet 82 and the spray liquid.

[0085] Drive the spray liquid to treat the exhaust gas: Enhanced mixing effect: When the heat absorbing component 8 rotates, it can drive the spray liquid entering it to move together. This movement can make the spray liquid and the exhaust gas mix more fully, improving the effect of exhaust gas treatment. Under the action of the rotating heat absorbing component 8, the spray liquid can better cover the surface of the exhaust gas, increase the contact area between the exhaust gas and the spray liquid, and thus promote the absorption and dissolution of pollutants.

[0086] Improve spraying efficiency: The rotation of the heat absorption component 8 can make the distribution of the spraying liquid more uniform, avoiding the local accumulation of the spraying liquid in the air inlet tube 4. This can improve the spraying efficiency and ensure that the exhaust gas in each part can be fully sprayed. At the same time, the rotating heat absorption component 8 can also help the spraying liquid to better penetrate into the exhaust gas, thereby enhancing the purification effect of the spraying liquid on the exhaust gas.

[0087] Promoting chemical reactions: In some cases, the spray liquid and the pollutants in the exhaust gas will react chemically, thereby purifying the exhaust gas. The rotation of the heat absorption component 8 can promote the chemical reaction because it can increase the contact time and contact area between the spray liquid and the exhaust gas, thereby increasing the reaction rate. For example, in an alkali liquid spray tower, the alkaline substances in the spray liquid react with the acidic pollutants in the exhaust gas to neutralize each other. The rotation of the heat absorption component 8 can make this reaction more fully proceed, thereby improving the effect of exhaust gas treatment.

[0088] After entering the air inlet 4, the high-temperature exhaust gas is directly blown toward the heat absorption component 8, causing the heat absorption component 8 to rotate. This rotation can not only better play the role of heat absorption and cooling, but also drive the spray liquid to treat the exhaust gas, thereby improving the exhaust gas treatment efficiency and performance of the spray tower.

[0089] The lower end of the rotating shaft 81 extends into the liquid seal chamber 73 , and a stirring blade 9 is provided at the lower end of the rotating shaft 81 .

[0090] Risk of impurity deposition: Since the exhaust gas may contain various impurities, when the spray liquid carries these impurities into the liquid seal chamber 73, the impurities will gradually deposit in the liquid seal chamber 73. If too many impurities are deposited, the drain port 5 may be blocked. Once the drain port 5 is blocked, it will seriously affect the normal operation of the spray tower, reduce the exhaust gas treatment efficiency, and may even cause equipment failure.

[0091] Function of the stirring blade 9: In order to solve the problem of impurities clogging the drain port 5, the stirring blade 9 is provided. When the rotating shaft 81 rotates, the stirring blade 9 is driven to rotate together. The stirring blade 9 continuously stirs the outlet position of the drain port 5, making it difficult for impurities deposited at this position to accumulate. This can effectively avoid the problem of impurities clogging, ensure that the drain port 5 is always unobstructed, and ensure that the spray liquid can be discharged smoothly.

[0092] Clever use of the rotation function of the heat absorption component 8: This technical solution cleverly uses the rotation function of the heat absorption component 8 itself to realize the rotation of the stirring blade 9. No additional power source is required, which saves energy and simplifies the equipment structure. When the high-temperature exhaust gas enters the air inlet 4, it blows the heat absorption component 8 to rotate, and the rotating shaft 81 rotates accordingly, thereby driving the stirring blade 9 at the lower end to rotate. This design fully embodies the concept of energy saving, environmental protection and efficient use of resources.

[0093] By arranging stirring blades 9 at the lower end of the rotating shaft 81 and utilizing the rotation of the heat absorption component 8 to drive the stirring blades 9 to rotate, the problem of waste gas impurities depositing and blocking the drain port 5 is effectively solved, thereby improving the reliability and stability of the spray tower.

[0094] It also includes two air inlet pipes 10, one of which is connected to the air inlets 6 on the two air inlet cylinders 4. The air inlet pipe 10 plays a bridge role in the entire exhaust gas treatment system, transporting the exhaust gas from the external source to the air inlet cylinder 4. One air inlet pipe 10 is connected to the air inlets 6 on the two air inlet cylinders 4. This connection method allows the exhaust gas to enter the two air inlet cylinders 4 at the same time, realizing the diversion of the exhaust gas. The diverted exhaust gas can be more evenly distributed in the spray tower, which improves the contact efficiency between the exhaust gas and the spray component 3 and the heat absorption component 8, thereby enhancing the exhaust gas treatment effect.

[0095] The upper end of the air inlet cylinder 4 is provided with a swirl blade 11, which can change the flow direction of the liquid entering the air inlet cylinder 4. It also includes a disc body coaxially arranged with the air inlet cylinder 4, the swirl blade 11 is arranged on the side of the disc body and arranged along the radial direction of the disc body, and a plurality of swirl blades 11 are arranged at equal intervals in the circumferential direction of the disc body, and the swirl blades 11 are arranged obliquely. It also includes an annular fixed ring, one end of the swirl blade 11 is fixedly connected to the disc body, and the other end of the swirl blade 11 is fixedly connected to the fixed ring, and the fixed ring is fixedly connected to the inner wall of the air inlet cylinder 4. By adopting the above technical solution, the spray liquid in the tower body 1 enters the air inlet cylinder 4 through the swirl blade 11. The swirl blade 11 can make the spray liquid enter the air inlet cylinder 4 more dispersedly. This dispersed spraying method can increase the contact area between the spray liquid and the exhaust gas in the air inlet cylinder 4, and improve the exhaust gas treatment effect. The spray liquid is more evenly distributed in the air inlet cylinder 4, which can better absorb pollutants in the exhaust gas and achieve more efficient exhaust gas purification. The dispersed spray liquid can contact the exhaust gas more fully, so that the pollutants in the exhaust gas can be absorbed and dissolved more quickly. This helps to improve the efficiency of exhaust gas treatment, reduce the residence time of exhaust gas in the spray tower, and improve the working efficiency of the entire exhaust gas treatment system.

[0096] A water tank is provided at the lower side of the liquid-sealed funnel 7 , and water flowing out of the opening of the funnel body 71 falls into the water tank. A circulating water pump connecting the water tank and the spray assembly 3 is also included.

[0097] 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. The side water tank 15 and the filter water tank 16 are connected by a pipeline.

[0098] A water tank is provided at the lower side of the liquid-sealed funnel 7, which plays a vital role in the entire spray tower system. It is responsible for receiving the water flowing out of the liquid-sealed funnel 7, that is, 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 clear purposes and advantages. The water flowing out of the liquid-sealed funnel 7 first enters the side water tank 15. The side water tank 15 plays a role of preliminary collection and buffering. The water enters the filter water tank 16 from the side water tank 15 through a pipeline. The 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 to the spray assembly 3 again under the action of the circulating water pump, so as to realize the recycling of the spray liquid.

[0099] In this process, the side water tank 15 and the filter water tank 16 help to cool the spray liquid after use. When the high-temperature exhaust gas contacts the spray liquid, the spray liquid absorbs the heat in the exhaust gas and heats up. 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 water tanks and gradually reduce the temperature. This can prevent the temperature of the recycled spray liquid from being too high, affecting the exhaust gas treatment effect, and also reduce the risk of secondary pollution caused by steam generated due to excessive temperature.

[0100] The filter water tank 16 filters the spray liquid. During the waste gas treatment process, the spray liquid may carry some impurities and pollutants in the waste gas. Through the filtering effect of the filter water tank 16, these impurities and pollutants can be removed, making the spray liquid cleaner and improving the recycling effect of the spray liquid. When the filtered spray liquid is used again for waste gas treatment, it can better play its role in absorbing and dissolving pollutants, thereby improving the quality of waste gas treatment.

[0101] Through the above cooling and filtering processes, the subsequent recycling of the spray liquid is fully prepared. Recycling the spray liquid can save water resources and reduce the cost of waste gas treatment. At the same time, the treated spray liquid can play a more stable role and improve the operating efficiency and reliability of the entire spray tower system.

[0102] It also includes a second spray tower 12, an air outlet 2 is provided at the upper end of the second spray tower 12, an air inlet 13 is provided 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, and a spray assembly 3 and a grille 14 are provided in the second spray tower 12.

[0103] Purpose of introducing the second spray tower 12: In order to further improve the waste gas treatment effect, the second spray tower 12 is set. During the waste gas treatment process, the waste gas treated by the first spray tower (i.e. the above-mentioned spray tower) may still contain a certain amount of pollutants, or there may be some impurities such as water vapor that have not been completely removed. The introduction of the second spray tower 12 can perform secondary spray treatment on the waste gas to ensure that the waste gas can reach a higher purification standard.

[0104] The second spray tower 12 is provided with a spray assembly 3 and a grid net 14. The function of the spray assembly 3 is similar to that of the spray assembly 3 in the first spray tower, which absorbs pollutants in the exhaust gas by spraying the spray liquid to contact the exhaust gas, thereby purifying the exhaust gas. The grid net 14 is mainly used to filter out water vapor in the exhaust gas.

[0105] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spray tower for waste gas treatment, comprising a tower body (1), an air outlet (2) being provided at the upper end of the tower body (1), and a spray assembly (3) being provided inside the tower body (1), characterized in that: The lower end of the tower body (1) is connected to a plurality of air inlet cylinders (4), the upper end of the air inlet cylinder (4) is in communication with the interior of the tower body (1), the lower end of the air inlet cylinder (4) is provided with a liquid discharge port (5), and the side of the air inlet cylinder (4) is provided with an air inlet port (6); A liquid sealing funnel (7) capable of liquid-sealing the liquid discharge port (5) is provided on the lower side of the air inlet cylinder (4); A heat absorption component (8) is provided inside the air inlet cylinder (4).

2. A spray tower for waste gas treatment according to claim 1, characterized in that: The liquid-sealed funnel (7) comprises a funnel body (71), the funnel body (71) being a shell structure with an upward opening, one side of the funnel body (71) being provided with an opening, a baffle (72) being provided in the funnel body (71) for preventing liquid in the funnel body (71) from flowing toward the opening side, the upper end of the baffle (72) being provided lower than the upper end of the funnel body (71), the baffle (72) and the side wall of the funnel body (71) forming a liquid-sealed chamber (73), the lower end of the air inlet tube (4) extending into the liquid-sealed chamber (73), the liquid discharge port (5) being provided lower than the upper end of the baffle (72), and the diameter of the lower end of the air inlet tube (4) being smaller than the diameter of its upper end.

3. A spray tower for waste gas treatment according to claim 2, characterized in that: The heat absorption component (8) comprises a rotatable shaft (81), the shaft (81) being coaxially arranged with the air inlet cylinder (4), a plurality of heat absorption sheets (82) being arranged on the shaft (81) along its circumference, the heat absorption sheets (82) being arranged corresponding to the air inlet (6), and the exhaust gas entering through the air inlet (6) can drive the heat absorption component (8) to rotate; the heat absorption component (8) is spaced apart from the inner wall of the air inlet cylinder (4).

4. A spray tower for waste gas treatment according to claim 3, characterized in that: The lower end of the rotating shaft (81) extends into the liquid seal chamber (73), and a stirring blade (9) is provided at the lower end of the rotating shaft (81).

5. The spray tower for waste gas treatment according to claim 4, characterized in that: The air inlet cylinders (4) are provided with four, and also include two air inlet pipes (10), one air inlet pipe (10) being connected to the air inlets (6) on the two air inlet cylinders (4), respectively.

6. A spray tower for waste gas treatment according to claim 5, characterized in that: Two funnel bodies (71) are provided. The funnel bodies (71) are in an elongated strip shape. One end of the funnel body (71) in the length direction is open. One funnel body (71) is provided corresponding to the liquid discharge ports (5) on the two air inlet cylinders (4). Two baffles (72) are provided in the funnel body (71). The two baffles (72) are spaced apart in the length direction of the funnel body (71).

7. A spray tower for waste gas treatment according to any one of claims 2 to 6, characterized in that: A water tank is provided at the lower side of the liquid-sealed funnel (7), and water flowing out of the opening of the funnel body (71) falls into the water tank. A circulating water pump connecting the water tank and the spray assembly (3) is also included.

8. The spray tower for waste gas treatment according to claim 7, characterized in that: The upper end of the air inlet cylinder (4) is provided with a swirl blade (11), and the swirl blade (11) can change the flow direction of the liquid entering the air inlet cylinder (4).

9. The spray tower for waste gas treatment according to claim 7, characterized in that: The invention also includes a second spray tower (12), wherein an air outlet (2) is provided at the upper end of the second spray tower (12), an air inlet (13) is provided 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), and a spray assembly (3) and a grille (14) are provided in the second spray tower (12).

10. The spray tower for waste gas treatment according to claim 7, characterized in that: The water tank comprises a side water tank (15) and a filter water tank (16); 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); a 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 via a pipeline.

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