Porous plate liquid distributor and energy-saving desulfurization tower

Abstract

The application discloses a porous plate liquid distributor and an energy-saving desulfurization tower, which comprise a liquid distributor module, a pressurizing pump and a water tank matched with the liquid distributor module; the liquid distributor module comprises a plurality of groups of porous plates, and the top ends of the porous plates in each group are synchronously connected through a group of connecting shunt plates. The core advantage of the adjustable pressure porous plate liquid distributor is highly precise liquid distribution control. With independent adjustment of the gas pressure in the gas shunt frame and the pressurizing frame by the pressurizing pump, the back pressure in each group of porous plates can be accurately controlled through the one-way air valve at the bottom of the clamping groove, so that the uniformity of liquid distribution, the liquid drop particle size and the flow rate can be dynamically adjusted in real time, and the optimal gas-liquid contact state can be realized under various working conditions and gas loads. The excellent gas-liquid mass transfer efficiency is derived from the double liquid treatment mechanism, and the inner ring of the atomization treatment module and the atomization holes thereof pre-wet and preliminarily remove dust from the rising gas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of desulfurization, in particular to a porous plate liquid distributor and energy-saving desulfurization tower. BACKGROUND

[0002] The desulfurization tower is a tower type device for desulfurization treatment of industrial waste gas, which chemically absorbs SO2 in industrial flue gas. The spraying device is an important unit of the desulfurization tower, which realizes gas-liquid mixing and further accelerates the reaction and absorption of sulfur-containing gas. In the process of industrial treatment, energy saving and environmental protection has become the mainstream development trend of various industrial equipment.

[0003] In the field of industrial flue gas desulfurization, the traditional desulfurization tower generally uses a fixed liquid distributor (such as a spraying layer or a cyclone plate) to realize gas-liquid contact, but there are significant technical bottlenecks: first, the conventional distributor usually controls the distribution state by adjusting a single variable of liquid flow, which is easy to cause uneven coverage of liquid curtain, local dry area or liquid overflow when the gas load fluctuates, resulting in a decrease in desulfurization efficiency; second, the static gas distribution structure is difficult to form effective turbulence, the contact time between gas and liquid droplets is short, and the mass transfer efficiency is low, especially for high-concentration SO2 gas, which needs to extend the tower body or increase the spraying stages to compensate for the efficiency loss, resulting in a large equipment volume and a sharp increase in energy consumption; third, the open water circulation system generally lacks an efficient filtering mechanism, and solid particles and reaction by-products (such as gypsum crystals) accumulated in the spraying liquid easily block the distributor holes, which requires frequent shutdown for cleaning, and direct discharge of waste liquid further exacerbates water resource waste and processing cost, so there is a need for a porous plate liquid distributor and energy-saving desulfurization tower. SUMMARY

[0004] The purpose of the present application is to provide a porous plate liquid distributor and energy-saving desulfurization tower, which integrates precise distribution, efficient mass transfer, enhanced mixing, closed-loop circulation and flexible operation, etc. core advantages, while ensuring the maximization of desulfurization efficiency, significantly reducing energy consumption, water consumption and operation and maintenance cost, realizing the organic unity of efficient desulfurization and energy saving and environmental protection, to solve the technical problems mentioned in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a porous plate liquid distributor, comprising a liquid distributor module, and a pressurizing pump and a water tank cooperating with the liquid distributor module;

[0006] The liquid distributor module comprises a plurality of groups of porous plates, and the top ends of each group of porous plates are synchronously connected through a group of connecting shunt plates;

[0007] A group of pressurizing frames for limiting the porous plates is installed on the upper surfaces of each group of porous plates on both sides of the connecting shunt plate, and the upper surfaces of the two groups of pressurizing frames are symmetrically connected through two groups of gas shunt frames.

[0008] Preferably, each group of the porous plates is installed at the same height, a transfusion pipe is connected to the center of the top end of the shunt plate, a plurality of groups of clamping grooves are equidistantly arranged at the bottom of the pressurizing frame, and each group of the porous plates is clamped into one group of the clamping grooves.

[0009] Preferably, a one-way air valve is arranged at the bottom of each group of the clamping grooves and connected to the porous plate, two groups of the gas shunt frames are synchronously connected to the two groups of the pressurizing frames, one group of the gas supply pipes is synchronously connected to the top ends of the two groups of the gas shunt frames, and the gas supply pipe is sealingly connected to the pressurizing pump at the end.

[0010] An energy-saving desulfurization tower comprises a desulfurization tower for limiting a liquid distributor module, and an atomization treatment module installed in the desulfurization tower for cooperating with the liquid distributor module;

[0011] The liquid distributor module and the atomization treatment module are connected to a water tank.

[0012] A liquid collecting disc is sealingly installed at the bottom of the liquid distributor module, a drain pipe is penetratingly installed at the center of the liquid collecting disc, and the drain pipe is connected to the bottom of the water tank, a supporting frame is installed at the bottom of the liquid collecting disc, and a gas discharge cover is installed at the top end of the desulfurization tower.

[0013] Preferably, the atomization treatment module comprises two groups of positioning liquid distribution rings installed on the inner walls of the desulfurization tower, a plurality of groups of supporting pipes are connected between the two groups of the positioning liquid distribution rings, a plurality of groups of inner rings are connected between the two groups of the positioning liquid distribution rings, and a plurality of groups of atomization holes are arranged on the inner arc surfaces of the inner rings.

[0014] Preferably, a water pump for pumping water is installed in the water tank, a water supply pipe is sealingly installed at the output end of the water pump, and the liquid distributor module and the atomization treatment module are respectively connected to the water supply pipe.

[0015] Preferably, a water treatment layer is arranged at the lower side of the water tank, a partition plate is fixedly installed at the center of the water treatment layer, the water pumping end of the water pump extends into the water treatment layer, and a protective cover is arranged on the water pumping end of the water pump.

[0016] Preferably, a plurality of porous filter materials are arranged at the other side of the partition plate in the water treatment layer, and a connecting seat is penetratingly installed at the bottom of the water tank and corresponds to the arrangement position of the porous filter materials.

[0017] Preferably, a gas injection module is installed at the lower part of the desulfurization tower, the gas injection module comprises a shunt gas disc, a plurality of groups of gas nozzles are arranged on the upper surface of the shunt gas disc at equal radii, and each group of the gas nozzles is installed at the same angle.

[0018] Preferably, a gas box is mounted on the center of the upper surface of the flow distribution disc, a air supply umbrella is rotatably mounted in the gas box, a plurality of groups of inclined air outlets are formed on the surface of the gas box with equal curvature, and the installation angle of the gas nozzle is opposite to the opening angle of the inclined air outlets.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] The porous plate liquid distributor and energy-saving desulfurization tower provided by the application significantly improve the desulfurization efficiency and operation economy through a series of innovative designs. The core beneficial effect is that the highly precise liquid distribution control is the core advantage of the adjustable pressure porous plate liquid distributor. With independent adjustment of the gas pressure in the gas distribution frame and the pressurizing frame by the pressurizing pump, the back pressure in each group of porous plates can be accurately controlled through the one-way air valve at the bottom of the clamping groove, so that the uniformity of liquid distribution, droplet size and flow rate can be dynamically adjusted in real time, and the optimal gas-liquid contact state can be ensured under various working conditions and gas loads.

[0021] The excellent gas-liquid mass transfer efficiency is due to the double liquid treatment mechanism. The inner ring of the atomization treatment module and its atomization holes pre-wet and preliminarily remove dust from the rising gas, effectively removing particulate matter and humidifying the gas surface to create favorable conditions for subsequent reactions. The porous plates of the liquid distributor module form uniform and stable liquid curtains or droplet distribution under controllable pressure, and fully counterflow contact with the gas with enhanced turbulence. The innovative design of the gas ejection module is the key to enhancing turbulence. The gas nozzle ejects the main gas flow at a specific angle, and the air supply umbrella in the gas box rotates driven by the gas flow, and the inclined air outlets eject auxiliary gas flow at an opposite angle. The interaction between the two produces strong three-dimensional eddy and vortex, greatly increasing the residence time and chaos of the gas in the tower, and significantly improving the uniformity of gas-liquid mixing and the update rate of the reaction interface.

[0022] The outstanding energy saving and resource recycling performance forms the cornerstone of sustainable operation of the system. The liquid collection disc efficiently collects the liquid falling from the distributor and the atomization module, and returns it to the water tank through the drain pipe, forming a closed water circuit. The water treatment layer in the water tank is carefully designed to divide the sedimentation and filtration areas by a partition plate. The liquid enters the connecting seat and then flows through the porous filter material, effectively adsorbing impurities, neutralizing acidic substances and removing suspended solids. The protection cover protects the water inlet end of the water pump, ensuring the cleanliness of the circulating liquid. The excellent operation flexibility and maintenance convenience are due to the modular design. The number of porous plates can be flexibly increased or decreased through the clamping groove according to the processing capacity, and the connecting flow distribution plate ensures the uniformity of the height and the overall stability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The figure is a structural schematic diagram of the application;

[0024] Figure 2 The figure is a split schematic diagram of the overall structure of the application;

[0025] Figure 3 This is a schematic diagram showing the disassembled installation structure of the liquid distributor module of the present invention;

[0026] Figure 4 This is a schematic diagram showing the structural breakdown of the liquid distributor module of the present invention;

[0027] Figure 5 This is a schematic diagram of the overall structure of the atomization processing module of the present invention;

[0028] Figure 6 This is a schematic diagram of the overall structure of the gas ejection module of the present invention;

[0029] Figure 7 This is a cross-sectional schematic diagram of the internal structure of the gas box of the present invention;

[0030] Figure 8 This is a schematic diagram of the internal structure of the water tank of the present invention.

[0031] In the diagram: 1. Liquid distributor module; 2. Perforated plate; 3. Connecting diversion plate; 4. Infusion pipe; 5. Pressure frame; 6. Slot; 7. Gas diversion frame; 8. Gas delivery pipe; 9. Pressure pump; 10. Atomization module; 11. Positioning liquid distribution ring; 12. Support pipe; 13. Inner ring; 14. Atomization hole; 15. Water tank; 16. Water pump; 17. Water delivery pipe; 18. Water treatment layer; 19. Divider plate; 20. Protective cover; 21. Perforated filter media; 22. Connecting seat; 23. Gas ejection module; 24. Diversion gas plate; 25. Gas nozzle; 26. Gas box; 27. Air supply umbrella; 28. Inclined exhaust port; 29. ​​Desulfurization tower; 30. Positioning plate; 31. Liquid collection plate; 32. Drain pipe; 33. Support frame; 34. Gas exhaust cover. Detailed Implementation

[0032] 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.

[0033] This invention provides: a perforated plate liquid distributor and an energy-saving desulfurization tower, such as... Figures 3-4 As shown, it includes a liquid distributor module 1, a pressure pump 9 and a water tank 15 used in conjunction with the liquid distributor module 1. The water tank 15 is used to provide sufficient water to the liquid distributor module 1 so as to complete the distribution of water. At the same time, the pressure pump 9 working in conjunction with the liquid distributor module 1 can control the internal pressure of the liquid distributor module 1 when distributing liquid, so as to better control the rate and state of the diversion.

[0034] The liquid distributor module 1 comprises a plurality of groups of porous plates 2, the top ends of each group of porous plates 2 are synchronously connected by a group of connection shunt plates 3, the porous plates 2 can be adjusted according to specific use requirements, and the connection shunt plates 3 are used to ensure that each group of porous plates 2 can be stably positioned at a uniform height for use, thereby ensuring the stability of the whole device when the liquid distribution is performed.

[0035] A group of pressing frames 5 for limiting the porous plates 2 are installed on the upper surfaces of each group of porous plates 2 on both sides of the connection shunt plates 3, the upper surfaces of the two groups of pressing frames 5 are symmetrically connected by two groups of gas shunt frames 7, the installed pressing frames 5 are used to limit the porous plates 2 in cooperation with the connection shunt plates 3, thereby ensuring the free selection state of the number of each group of porous plates 2.

[0036] As a preferred, each group of porous plates 2 is installed at the same height, the connection shunt plates 3 are centrally and communicatively installed with a liquid inlet pipe 4 at the top end, a plurality of groups of clamping grooves 6 are equidistantly formed in the bottom of the pressing frame 5, each group of porous plates 2 is clamped into one group of clamping grooves 6, the two groups of pressing frames 5 are connected by the gas shunt frame 7, the pressing frame 5 limits the porous plates 2, thereby ensuring that the porous plates 2 can not only control the distribution state by the injection amount of liquid when performing the liquid distribution work, but also can complete the change and adjustment of the liquid distribution by the pressurizing pump 9.

[0037] Further, a one-way air valve connected with the porous plates 2 is arranged at the bottom of each group of clamping grooves 6, the two groups of pressing frames 5 are synchronously connected by the gas shunt frame 7, a group of gas supply pipes 8 are synchronously connected at the top ends of the two groups of gas shunt frames 7, the gas supply pipe 8 is sealingly connected with the pressurizing pump 9 at the end, the gas supply pipe 8 is arranged to penetrate the liquid distributor module 1 and is connected with the pressurizing pump 9, a positioning plate 30 for limiting the pressurizing pump 9 is arranged on the surface of the desulfurization tower 29, which can stably ensure that the pressurizing pump 9 pressurizes the pressing frame 5, so that the internal pressure of each group of porous plates 2 changes, thereby better completing the liquid distribution work, wherein the pressurizing pump 9 is a gas pressurizing pump, the pump body of the HASKEL AG series is selected, and the pressurizing pump 9 is a relatively common and mature device in the prior art. In this application, any pressurizing pump 9 that can meet the needs of the device can be directly purchased from the market for use, so no additional innovation is made to the pressurizing pump 9 in this application, and therefore no protection is provided for it.

[0038] An energy-saving desulfurization tower, as shown in Figures 1-8 includes a desulfurization tower 29 for limiting the liquid distributor module 1, an atomization treatment module 10 is installed inside the desulfurization tower 29 for cooperation with the liquid distributor module 1, the atomization treatment module 10 arranged can perform atomization treatment on the gas in and out of the desulfurization tower 29 in advance, thereby assisting the use of the liquid distributor module 1, improving the processing efficiency of the liquid distributor module 1 on the gas, better ensuring the allocation and use of energy, and reducing the loss of energy.

[0039] The liquid distributor module 1 and the atomization treatment module 10 are externally connected with the water tank 15; the bottom of the liquid distributor module 1 is sealingly provided with a liquid collecting disc 31, the center of the liquid collecting disc 31 is provided with a drain pipe 32 penetratingly installed, the drain pipe 32 is in communication with the bottom of the water tank 15, the bottom of the liquid collecting disc 31 is provided with a supporting frame 33, the top of the desulfurization tower 29 is provided with a gas discharge cover 34, the supporting frame 33 supports the desulfurization tower 29 as a whole, so as to ensure the stability of the use of the desulfurization tower 29 as a whole, meanwhile, the liquid collecting disc 31 and the drain pipe 32 installed at the bottom of the desulfurization tower 29 can collect and recycle the liquid sprayed by the liquid distributor module 1 and the atomization treatment module 10, so that the liquid can be transported to the inside of the water tank 15 to complete the recycling, and further save energy.

[0040] As preferred, the atomization treatment module 10 comprises two groups of positioning liquid distribution rings 11 installed on the inner wall of the desulfurization tower 29, the two groups of positioning liquid distribution rings 11 are in communication by a plurality of groups of supporting pipes 12, a plurality of groups of inner rings 13 are in communication between the two groups of positioning liquid distribution rings 11, and a plurality of groups of atomization holes 14 are formed in the inner arc surface of the inner rings 13, the positioning liquid distribution rings 11 and the supporting pipes 12 complete the limiting of the atomization treatment module 10, the plurality of groups of inner rings 13 and the atomization holes 14 formed in the inner arc surface of the inner rings 13 enable the liquid to be sprayed in an atomized state, so as to wet the gas passing through the atomization treatment module 10, to carry out the particulate matters in the gas, and to complete the preliminary treatment operation of the gas.

[0041] Further, the water pump 16 for pumping water is installed in the water tank 15, the output end of the water pump 16 is sealingly provided with a water supply pipe 17, the liquid distributor module 1 and the atomization treatment module 10 are in communication with the water supply pipe 17, the water tank 15 completes the circulation of the liquid by the water pump 16, the water pump 16 is a stainless steel submersible pump, model: 200QJ20-160 / 1, and the water pump 16 is a relatively common and mature device in the prior art, and in the present application, any water pump 16 that can meet the needs of the device can be directly purchased from the market for use, so the water pump 16 is not additionally innovated in the present application, and therefore is not protected.

[0042] Further, the water treatment layer 18 is formed at the lower side of the water tank 15, the center of the water treatment layer 18 is fixedly provided with a partition plate 19, the water pumping end of the water pump 16 extends into the inside of the water treatment layer 18, and the water pumping end of the water pump 16 is sleeved with a protective cover 20, the water treatment layer 18 is separated by the partition plate 19, so that the liquid can be stably deposited and adsorbed in the lower side of the water tank 15, so that the water body is cleaner, and the continuous circulation of the liquid can be ensured in a long time use, and the water tank 15 itself can be externally connected with a water pipe to supplement new water.

[0043] Deserved to explain, water treatment layer 18 inside the other side of the partition plate 19 is placed with porous filter material 21, water tank 15 bottom corresponding to the porous filter material 21 is placed position through the installation of connecting seat 22, placed porous filter material 21 makes desulfurization tower 29 inside the used liquid through connecting seat 22 into, make water body must pass through porous filter material 21 can be input end of water pump 16 extracted for use, to further guarantee the clean of water body when being extracted for use, also through the setting of protective cover 20 to block porous filter material 21 to further enhance the protection of water pump 16.

[0044] Specifically, the lower part of the desulfurization tower 29 is provided with a gas injection module 23, the gas injection module 23 comprises a shunt gas disc 24, a plurality of groups of gas nozzles 25 are arranged on the upper surface of the shunt gas disc 24 in equal arc, each group of gas nozzles 25 is arranged at the same angle, the shunt gas disc 24 ensures the supply of gas, and the gas nozzles 25 are arranged to ensure the stable delivery of gas, so that the gas is delivered in the same direction and at the same angle.

[0045] In addition, the shunt gas disc 24 is provided with a gas box 26 at the center of the upper surface, the gas box 26 is rotatably provided with a blower umbrella 27, a plurality of groups of inclined air outlets 28 are arranged on the surface of the gas box 26 in equal arc, and the installation angle of the gas nozzles 25 is opposite to the opening angle of the inclined air outlets 28. After the gas is delivered through the gas nozzles 25, the blower umbrella 27 in the gas box 26 is continuously delivered with the gas, and the gas is completed by the gas in different directions from the gas nozzles 25, so that the gas in the desulfurization tower 29 is chaotic, and the liquid distributor module 1 and the atomization treatment module 10 can better complete the treatment of the gas.

[0046] Working principle:

[0047] The sulfur-containing gas enters the gas ejection module from the bottom of the desulfurization tower, and the gas nozzles on the gas distribution disc eject the gas upward at a specific angle. At the same time, the air supply umbrella in the gas box is driven to rotate by the air flow, and the gas ejected from the inclined air outlet of the air supply umbrella is in the opposite direction of the gas nozzle, forming a turbulent flow to fully mix the gas in the tower. The liquid distributor module receives liquid from the water tank through the liquid delivery pipe connected to the top of the distribution plate, and delivers the gas to the gas delivery pipe through the pressurizing pump, and the gas distribution frame distributes the gas to the two groups of pressurizing frames, and adjusts the internal pressure of each group of perforated plates through the one-way air valve at the bottom of the clamping slot, controls the liquid distribution state and flow rate. The perforated plate uniformly distributes the liquid downward and sprays it to contact the upward gas countercurrently. The atomization treatment module is fixed by the positioning liquid distribution ring and the support pipe, and the atomization holes on the inner ring spray the liquid to pre-wet the gas, remove particulate matter and improve the subsequent desulfurization efficiency. The liquid after spraying is collected in the liquid collecting disc and returned to the bottom of the water tank through the drain pipe. The water treatment layer in the water tank is divided into areas by the partition plate, and the liquid enters through the connecting seat, flows through the porous filter material to filter impurities, and is then delivered to the liquid distributor module and the atomization treatment module through the water pump and the water delivery pipe for recycling. The clean gas after treatment is discharged from the gas discharge cover at the top of the tower. In the whole process, the liquid is recycled, the pressure is accurately controlled, and the atomization pretreatment is synergized to achieve efficient desulfurization and reduce energy consumption.

[0048] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An energy-saving desulfurization tower, characterized in that: The device includes a perforated plate liquid distributor, comprising: a liquid distributor module (1), and a pressure pump (9) and a water tank (15) used in conjunction with the liquid distributor module (1); The liquid distributor module (1) includes several sets of perforated plates (2), and the top of each set of perforated plates (2) is synchronously connected through a set of connecting diversion plates (3); Each set of perforated plates (2) has a set of pressure brackets (5) installed on the upper surface of each set of perforated plates (2) on both sides of the connecting flow divider (3) for limiting the perforated plates (2). The upper surfaces of the two sets of pressure brackets (5) are symmetrically connected by two sets of gas flow dividers (7). Each group of perforated plates (2) is installed at the same height, and an infusion tube (4) is connected to the center of the top of the diversion plate (3). The bottom of the pressure frame (5) is provided with several sets of slots (6) at equal intervals, and each group of perforated plates (2) is inserted into a set of slots (6). Each set of slots (6) is provided with a one-way gas valve at the bottom that is connected to the perforated plate (2). The gas splitter (7) is synchronously connected to two sets of pressurizing frames (5). The top of the two sets of gas splitters (7) is synchronously connected to a set of gas delivery pipes (8). The end of the gas delivery pipe (8) is sealed to the pressurizing pump (9). It also includes a desulfurization tower (29) for limiting the liquid distributor module (1), and an atomization processing module (10) installed inside the desulfurization tower (29) for use with the liquid distributor module (1). The liquid distributor module (1) and the atomization module (10) are both externally connected to the water tank (15); The desulfurization tower (29) is equipped with a gas ejection module (23) at the bottom. The gas ejection module (23) includes a gas distribution plate (24). Several sets of gas nozzles (25) are installed on the upper surface of the gas distribution plate (24) with equal arc. Each set of gas nozzles (25) is installed at the same angle. An air box (26) is installed through the center of the upper surface of the air distribution plate (24). An air supply umbrella (27) is rotatably installed inside the air box (26). Several sets of inclined exhaust ports (28) are opened on the surface of the air box (26) with equal arcs. The installation angle of the gas nozzle (25) is opposite to the opening angle of the inclined exhaust port (28).

2. The energy-saving desulfurization tower according to claim 1, characterized in that: The liquid distributor module (1) is sealed at the bottom with a liquid collection tray (31), and a drain pipe (32) is installed through the center of the liquid collection tray (31). The drain pipe (32) is connected to the bottom of the water tank (15). A support frame (33) is installed at the bottom of the liquid collection tray (31), and a gas discharge cover (34) is placed on the top of the desulfurization tower (29).

3. The energy-saving desulfurization tower according to claim 2, characterized in that: The atomization module (10) includes two sets of positioning liquid distribution rings (11) installed on the inner wall of the desulfurization tower (29). The two sets of positioning liquid distribution rings (11) are connected and installed through several sets of support pipes (12). Several sets of inner rings (13) are connected and installed between the two sets of positioning liquid distribution rings (11), and several sets of atomization holes (14) are opened on the inner arc surface of the inner ring (13).

4. The energy-saving desulfurization tower according to claim 3, characterized in that: The water tank (15) is equipped with a water pump (16) for pumping water. The output end of the water pump (16) is sealed with a water delivery pipe (17). The liquid distributor module (1) and the atomization processing module (10) are respectively connected to the water delivery pipe (17).

5. The energy-saving desulfurization tower according to claim 4, characterized in that: The lower side of the water tank (15) is a water treatment layer (18). A partition plate (19) is fixedly installed in the center of the water treatment layer (18). The water pump (16) extends into the water treatment layer (18), and the water pump (16) is covered with a protective cover (20).

6. The energy-saving desulfurization tower according to claim 5, characterized in that: A porous filter material (21) is placed inside the water treatment layer (18) on the other side of the partition plate (19), and a connecting seat (22) is installed through the bottom of the water tank (15) corresponding to the placement position of the porous filter material (21).

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