Iron and manganese removing filter

Abstract

The application specifically relates to an iron-manganese removal filter tower. The first and second partitions inside the tower body sequentially divide the inside of the tower body from top to bottom into a first cavity, a second cavity and a third cavity. The periphery of the first cavity is provided with a water inlet, the periphery of the second cavity is provided with an air inlet, and the second partition is provided with a plurality of air vents. A plurality of Venturi jet nozzles of a bubble generator are arranged in the second cavity. A water distribution plate and an air distribution plate are sequentially and spacedly arranged in the third cavity in the vertical direction from top to bottom, so that the third cavity is sequentially and spacedly divided into a division cavity, a reaction cavity and an air inlet cavity from top to bottom. The periphery of the air inlet cavity is provided with an air inlet and a water outlet, and the reaction cavity is filled with fillers. The application can purify underground water at a lower height, so as to reduce the occupied space, and reduce the cost and energy consumption.

Description

Technical Field

[0001] This application belongs to the technical field of manufacturing special equipment for water pollution environmental protection, and specifically relates to an iron and manganese removal filter tower. Background Technology

[0002] Groundwater, due to its stable quality and minimal susceptibility to external pollution, is one of my country's important drinking water sources. However, due to geological conditions, many regions in my country have groundwater with excessive iron and manganese levels. Long-term consumption of water with excessive iron and manganese can pose potential health hazards and also have adverse effects on industrial and domestic water facilities, such as pipe blockage and appliance staining. Therefore, removing excess iron and manganese from groundwater is an important issue in the field of water treatment.

[0003] Currently, the mainstream technology for removing iron and manganese from groundwater is the contact oxidation method. This method utilizes an active filter membrane formed on the surface of the filter media as a catalyst. In the presence of dissolved oxygen, it accelerates the oxidation reaction of ferrous and manganese divalent in the water, generating insoluble ferric and manganese trivalent hydroxides, which are then removed through filtration. Because the contact oxidation method does not require the addition of additional chemical oxidants (such as chlorine or potassium permanganate), avoids the introduction of byproducts, and has advantages such as relatively low operating and maintenance costs and simple operation and management, it has been widely used in water treatment projects.

[0004] However, in the process of developing this application, the applicant discovered that existing treatment devices and methods based on the contact oxidation method have at least the following shortcomings: Existing contact oxidation processes mostly use direct contact between air and water to remove iron and manganese ions from groundwater. However, these processes suffer from limited gas-liquid contact area and low mixing efficiency, resulting in limited removal effectiveness. To address this, increasing equipment height to extend aeration time and ensure removal efficiency is often employed. However, this method increases the space occupied by the equipment and its operating energy consumption, indicating room for improvement. Summary of the Invention

[0005] Based on the above-mentioned technical problems, this application provides an iron and manganese removal filter tower, which aims to ensure the removal effect to a certain extent without increasing the height of the equipment.

[0006] This application is achieved through the following technical solution: A filter tower for removing iron and manganese includes: a tower body, wherein a first partition and a second partition are arranged vertically from top to bottom inside the tower body, dividing the interior of the tower body into a first cavity, a second cavity, and a third cavity from top to bottom; a water inlet is provided on the peripheral side of the first cavity, and an air inlet is provided on the peripheral side of the second cavity; and multiple air vents are provided on the second partition; a bubble generator including multiple Venturi jets, wherein the multiple Venturi jets are spaced apart in the second cavity, and the water inlet end of each Venturi jet passes through a... The first partition plate is connected to the first cavity. The air inlet of the Venturi jet is located in the second cavity. The output end of the Venturi jet passes through the second partition plate and is connected to the third cavity. A water distribution plate and an air distribution plate are arranged vertically from top to bottom in the third cavity at intervals to divide the third cavity into a dividing cavity, a reaction cavity, and an air inlet cavity. The water distribution plate has a grid-shaped water distribution hole, and the air distribution plate has a grid-shaped air distribution hole. An air inlet and a drain outlet are provided on the circumferential surface of the air inlet cavity. The reaction cavity is filled with filler.

[0007] In some implementations, the first cavity has a communication port on its peripheral side, the communication port is located above the water inlet, and multiple communication ports are spaced apart around the periphery of the tower body; the iron and manganese removal filter tower also includes a dust cover, the dust cover is connected to the top of the tower body, the edge of the dust cover protrudes outward and is spaced apart outside the multiple communication ports.

[0008] In some implementations, multiple air inlets are provided at intervals around the circumference of the second cavity.

[0009] In some embodiments, a plurality of the vents are arranged around the outer periphery of the bubble generator.

[0010] In some implementations, the iron and manganese removal filter tower further includes a filter assembly disposed within the air inlet chamber.

[0011] In some embodiments, the filter assembly includes: a baffle plate disposed within the air inlet cavity, the baffle plate and one side of the air inlet cavity having a first gap, the air inlet disposed above the baffle plate, and the drain outlet disposed below the baffle plate and located on the other side of the air inlet cavity; a filter element disposed within the air inlet cavity and spaced below the baffle plate, the drain outlet located above the filter element, the filter element and one side of the air inlet cavity having a second gap, and the filter element and the bottom of the air inlet cavity having a third gap, the first gap, the second gap, and the third gap being sequentially connected, and the filter element having multiple vertically penetrating baffle channels.

[0012] In some implementations, the top surface of the guide plate is a slope, which slopes downward toward the first gap.

[0013] In some implementations, the flow channel is inclined, with its top tip tilted away from the second gap.

[0014] In some embodiments, the side of the baffle facing the first gap and the top of the filter facing the second gap are sealed together by a sealing plate.

[0015] In some implementations, the bottom of the tower body is detachable.

[0016] When purifying groundwater using the iron and manganese removal filter tower provided in this application, groundwater enters the first chamber through the inlet and is injected into the Venturi jet of the bubble generator. Simultaneously, air is injected into the second chamber through the air inlet and is drawn into the Venturi jet of the bubble generator. The two mix in the Venturi jet and are output as bubbles falling into the dividing chamber. The water distribution plate further divides the bubbles into water mist, which falls into the reaction chamber between the water distribution plate and the air distribution plate. Since the reaction chamber is filled with packing material, the water mist adheres to the surface of the packing material and flows slowly downward, prolonging the reaction time so that the groundwater and the air entering from the air inlet can fully react and come into contact, causing the iron and manganese in the groundwater to be oxidized. Afterward, the air is discharged into the second chamber through the vent, while the treated water falls into the air inlet chamber through the air distribution holes of the air distribution plate under the action of gravity and is discharged through the drain outlet.

[0017] As described above, this application utilizes a Venturi jet to efficiently mix groundwater and air to form bubbles, which are then further abraded into water mist by a water distribution plate. The water mist flows from top to bottom within the tower, while the air flows from bottom to top. The water mist and air oxidize each other on the surface of the packing material, increasing the contact area and reaction time between the groundwater and air, thereby improving the reaction efficiency. This allows the equipment to achieve efficient oxidation of groundwater at a relatively low height, reducing space requirements, costs, and energy consumption, thus demonstrating significant practical value. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0019] Figure 1 This paper shows a schematic diagram of the structure of an iron and manganese removal filter tower in one or more embodiments of the present application; Figure 2 It shows Figure 1 Internal diagram; Figure 3 It shows Figure 2 A schematic diagram of the filter components assembled in the air inlet cavity.

[0020] Explanation of reference numerals in the attached figures: 100. Tower body; 110. First cavity; 111. Water inlet; 112. Connecting port; 113. First grille; 120. Second cavity; 121. Air inlet; 122. Second grille; 130. Third cavity; 140. Dividing cavity; 150. Reaction chamber; 160. Air inlet cavity; 161. Air inlet; 162. Drain outlet; 170. Water inlet pipe; 171. Connecting flange; 180. Water outlet pipe; 190. Annular baffle; 191. Support plate; 192. Column; 200. Bubble generator; 210. Venturi jet; 300. Water distribution plate; 310. Water distribution hole; 400. Air distribution panel; 410. Air distribution hole; 500, First partition; 510, First mounting port; 600, Second partition; 610, Vent; 620, Second mounting port; 710. Dust cover; 720. Blower; 800, Filter assembly; 810, Baffle plate; 820, Filter element; 821, Baffle channel; 830, First gap; 840, Second gap; 850, Third gap; 860, Sealing plate. Detailed Implementation

[0021] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Figure 1 The diagram shows a schematic representation of the iron and manganese removal filter tower in one or more embodiments of this application. Figure 2 It shows Figure 1 An internal diagram. Combined with... Figure 1 as well as Figure 2The iron and manganese removal filter tower provided in this application includes a tower body 100, a bubble generator 200, a water distribution plate 300, and an air distribution plate 400. The tower body 100 has a first partition 500 and a second partition 600 arranged vertically from top to bottom inside, dividing the interior of the tower body 100 into a first cavity 110, a second cavity 120, and a third cavity 130 from top to bottom. The first cavity 110 has a water inlet 111 on its circumferential side, and the second cavity 120 has an air inlet 121 on its circumferential side. The second partition 600 has multiple air vents 610. The bubble generator 200 includes multiple Venturi jets 210, which are spaced apart within the second cavity 120. The water inlet of Venturi jet 210 is connected to the first partition 500 and communicates with the first cavity 110. The air inlet of Venturi jet 210 is located in the second cavity 120. The output end of Venturi jet 210 is connected to the third cavity 130 through the second partition 600. The water distribution plate 300 and the air distribution plate 400 are arranged vertically from top to bottom in the third cavity 130 at intervals to divide the third cavity 130 into the dividing cavity 140, the reaction cavity 150 and the air inlet cavity 160 from top to bottom. The water distribution plate 300 is provided with a grid-shaped water distribution hole 310, and the air distribution plate 400 is provided with a grid-shaped air distribution hole 410. The air inlet cavity 160 is provided with an air inlet 161 and a drain outlet 162 on its circumferential surface. The reaction cavity 150 is filled with filler (not shown in the figure).

[0023] When purifying groundwater using the iron and manganese removal filter tower provided in this application, groundwater enters the first chamber 110 through inlet 111. The groundwater is injected into the Venturi jet 210 of the bubble generator 200. Simultaneously, air is injected into the second chamber 120 through inlet 121 and drawn into the Venturi jet 210 of the bubble generator 200. The two mix within the Venturi jet 210 and are output as bubbles falling into the dividing chamber 140. The water distribution plate 300 further divides the bubbles into water mist. The mist enters the reaction chamber 150 between the water distribution plate 300 and the air distribution plate 400. Since the reaction chamber 150 is filled with packing material, the water mist adheres to the surface of the packing material and flows slowly downwards, prolonging the reaction time and allowing the groundwater to fully react and contact with the air entering from the air inlet 161. This oxidizes the iron and manganese in the groundwater. Afterwards, the air is discharged through the vent 610 into the second chamber 120, while the treated water, under gravity, falls through the air distribution holes 410 of the air distribution plate 400 into the air inlet chamber 160 and is discharged through the drain outlet 162. The specific details of this iron and manganese removal filter tower are now further described with reference to the attached drawings.

[0024] Combination Figure 1 as well as Figure 2In some embodiments, the tower body 100 is generally columnar, with the first partition 500 and the second partition 600 arranged horizontally within the tower body 100. The first partition 500 and the second partition 600 can be integrally formed with the shell to ensure the connection strength between the first partition 500 and the second partition 600 and the shell, so that the bubble generator 200 supported by them can be stably assembled within the shell. In other embodiments, a ring of support blocks for supporting the first partition 500 and the second partition 600 can be provided inside the tower body 100, with the first partition 500 and the second partition 600 respectively placed on the corresponding support blocks, which can also achieve the connection and assembly of the first partition 500 and the second partition 600 with the tower body 100. This application does not limit this.

[0025] Combination Figure 1 as well as Figure 2 In some embodiments, a water inlet pipe 170 is connected to the top of the circumference of the tower body 100. The water inlet pipe 170 is connected to a water inlet 111, and a connecting flange 171 is connected to the outer end face of the water inlet pipe 170 for connection to a pipeline. This allows a water pump to be connected to the connecting flange 171 via the pipeline, and groundwater can be pumped by the water pump and delivered through the water inlet 111 to the first cavity 110 above the first partition 500. A water outlet pipe 180 is connected to the bottom of the circumference of the tower body 100. The water outlet pipe 180 is connected to a water outlet to deliver purified water outside the tower body 100.

[0026] Combination Figure 2 In some embodiments, the peripheral side of the first cavity 110 is provided with a connecting port 112. The connecting port 112 is disposed above the water inlet 111. Multiple connecting ports 112 are spaced around the peripheral surface of the tower body 100. Multiple connecting ports 112 are spaced around the peripheral surface of the tower body 100 and are located above the water inlet 111 to connect the first cavity 110 and the outside of the tower body 100, so that air can enter the first cavity 110 above the first partition 500 evenly, and water entering the first cavity 110 can be smoothly injected into the Venturi jet 210.

[0027] Combination Figure 1 as well as Figure 2 In some embodiments, the iron-manganese filter tower also includes a dust cover 710, which is connected to the top of the tower body 100. The edges of the dust cover 710 protrude outward and fall outside the multiple connecting ports 112 to prevent external dust from entering the tower body 100 through the multiple connecting ports 112. Exemplarily, the dust cover is frustoconical, and a first grid 113 may be provided inside the connecting ports 112 to further prevent larger particles of impurities from entering the tower body 100 through the connecting ports 112.

[0028] Combination Figure 1as well as Figure 2 In some embodiments, multiple air inlets 121 are spaced apart around the circumference of the second cavity 120 to allow air to quickly pass through the tower body 100 from outside. For example, a second grille 122 may be provided inside the air inlet 121 to prevent larger particles from entering the tower body 100 through the air inlet 121.

[0029] Combination Figure 2 In some embodiments, the middle region of the first partition 500 is provided with a plurality of first mounting ports 510, and the middle region of the second partition 600 is provided with a plurality of second mounting ports 620. The first mounting ports 510 and the second mounting ports 620 are provided in a one-to-one correspondence. The top end (i.e., the water inlet end) of the Venturi jet 210 of the bubble generator 200 is installed in the corresponding first mounting port 510, and the bottom end (i.e., the output end) of the Venturi jet 210 is installed in the corresponding second mounting port 620. The groundwater input from the water inlet 111 into the first cavity 110 is transported to the Venturi jet 210 through the top end of the Venturi jet 210 and adsorbs the air in the second cavity 120. The air is output in the form of bubbles through the bottom end of the Venturi jet 210. For example, the plurality of first mounting ports 510 and the plurality of second mounting ports 620 are arranged in a ring, and correspondingly, the plurality of Venturi jets 210 are also arranged in a ring to ensure that the bubbles can fill the entire reaction chamber 150 to a certain extent, thus ensuring the reaction effect. In other configurations, the plurality of Venturi jets 210 may also be arranged in a grid pattern, and this application does not limit this.

[0030] Combination Figure 2 In some embodiments, multiple vents 610 are arranged around the outer periphery of the bubble generator 200. That is, multiple Venturi jets 210 of the bubble generator 200 are positioned between the multiple vents 610, so that the reacted air can be smoothly transported from the reaction chamber 150 of the third chamber 130 to the second chamber 120 through the multiple vents 610, and discharged from the outlet on the periphery of the second chamber 120. Exemplarily, four vents 610 are provided, each vent 610 being arc-shaped.

[0031] In some embodiments, the water distribution plate 300 and the air distribution plate 400 can be integrally formed with the shell to ensure the connection strength between the water distribution plate 300 and the air distribution plate 400 and the shell, so that they can be stably assembled inside the shell. In other embodiments, a ring of support blocks for supporting the water distribution plate 300 and the air distribution plate 400 can also be provided inside the tower body 100, and the water distribution plate 300 and the air distribution plate 400 can be placed on the corresponding support blocks, which can also realize the connection and assembly of the water distribution plate 300 and the air distribution plate 400 with the tower body 100. This application does not limit this.

[0032] In some preferred embodiments, in order to prevent clogging of the water distribution holes and air distribution holes while ensuring uniform water distribution and water atomization effect, the parameters of the water distribution hole 310 and the air distribution hole 410 are set as follows: In some embodiments, the diameter of the water distribution holes 310 can be set to 5-8 mm, and the water distribution holes 310 can be arranged in a ring array or a square array with a hole spacing of 40-60 mm. The diameter of the air distribution holes 410 can be set to 2-4.5 mm. This arrangement allows the gas-liquid mixture from the Venturi jet 210 to be uniformly cut into a fine water mist, avoiding large streams of water from directly impacting the packing material and preventing suspended solids from clogging it. The shape of the water distribution holes 310 is preferably circular, with chamfered edges to reduce head loss.

[0033] In some embodiments, the packing material can be formed by stacking hollow spheres. The stable voids formed between adjacent packing materials allow air and water mist to pass through. The water mist adheres to the surface of the packing material and flows slowly downwards to prolong the reaction time, thereby enabling the reaction of iron and manganese ions in the air and water mist at a lower cost, which is highly practical. For example, the hollow spheres can be made of polypropylene (with a diameter of 25-50 mm). In other embodiments, the packing material can also be natural manganese sand (particle size 1-4 mm) or quartz sand (particle size 2-5 mm) as the filter media. Hollow sphere packing has a low density and a large porosity, which facilitates air and water passage and is less prone to clogging; manganese sand packing itself has catalytic activity, which can enhance the removal of iron and manganese. The recommended stacking height of the packing material is 70%-85% of the height of the reaction chamber, with a gap at the top for initial water mist distribution.

[0034] In some embodiments, the air distribution holes 410 can be arranged in a ring or square array with a hole spacing of 40-60 mm. When the packing material in the reaction chamber 150 is manganese sand with a small particle size (e.g., 1.2-2.0 mm), the hole diameter of the air distribution holes 410 is preferably less than 1.2 mm to prevent packing material leakage. When hollow spherical packing material (25-50 mm in diameter) is used, the hole diameter of the air distribution holes 410 can be 3-4 mm. The design of the air distribution holes 410 should ensure that the air outlet velocity at the orifice reaches 5-10 m / s under normal aeration airflow to ensure uniform airflow distribution and prevent local fluidization.

[0035] By setting the above parameters, the gas-liquid mixture from the Venturi jet 210 can be fully cut into fine water mist by the water distribution plate 300, and the airflow distribution in the reaction chamber 150 can be made uniform. At the same time, it can effectively prevent the packing from falling into the air inlet chamber 160, thereby further improving the iron and manganese removal efficiency.

[0036] Combination Figure 1 as well as Figure 2In some embodiments, the iron and manganese removal filter tower also includes a blower 720, which is installed on the outer circumference of the tower body 100. The output end of the blower 720 is connected to the air inlet 161. Thus, when the iron and manganese removal filter tower is used to purify groundwater, the blower 720 delivers outside air through the air inlet 161 to the air inlet chamber 160, and forms an airflow in the air inlet chamber 160. After being cut by the air distribution plate 400, the air is evenly delivered from bottom to top to participate in the purification reaction of groundwater.

[0037] In related technologies, after groundwater is treated within the 100mm tower, an external filtration tank is required to remove particles such as manganese and ferromanganese generated in the water. This setup increases the footprint of the purification equipment to some extent. To solve this technical problem, [the following is a separate, unrelated section:] ... Figure 2 The iron and manganese removal filter tower of this application also includes a filter component 800, which is installed in the air inlet chamber 160. The purified groundwater is directly filtered by the filter component 800 in the tower body 100 and then discharged, so as to reduce the footprint of the purification equipment and thereby reduce the cost to a certain extent.

[0038] Figure 3 It shows Figure 2 A schematic diagram showing the assembly of the filter components within the air inlet cavity. (Combined with...) Figure 2 as well as Figure 3In some embodiments, the filter assembly 800 includes a guide plate 810 and a filter element 820. The guide plate 810 is disposed within the air inlet cavity 160. The guide plate 810 and one side of the air inlet cavity 160 have a first gap 830. The air inlet 161 is disposed above the guide plate 810, and the drain outlet 162 is disposed below the guide plate 810 and located on the other side of the air inlet cavity 160. The filter element 820 is disposed within the air inlet cavity 160 and is spaced below the guide plate 810. The drain outlet 162 is located above the filter element 820. The filter element 820 and one side of the air inlet cavity 160 have a second gap 840. The bottom of the filter element 820 and the air inlet cavity 160 have a third gap 850. The first gap 830, the second gap 840, and the third gap 850 are sequentially connected. The filter element 820 is provided with multiple vertically penetrating guide channels 821. In actual implementation, the purified groundwater flows out through the air distribution plate 400, and after being guided by the guide plate 810, it falls from the first gap 830 and the second gap 840 into the third gap 850, and then flows into the guide channel 821 of the filter element 820. During this process, the iron and manganese particles generated by the reaction in the groundwater settle down in the third gap 850. As water continuously flows into the third gap 850, the water level in the third gap 850 rises, and the water level in the guide channel 821 of the filter element 820 also rises accordingly. The iron and manganese particles in the water in the guide channel 821 of the filter element 820 will settle and accumulate at the bottom of the tower body 100, achieving the separation of manganese and iron particles. After the purified water level in the guide channel 821 of the filter element 820 rises to the outlet, it flows out naturally.

[0039] Combination Figure 2 as well as Figure 3 In some embodiments, the top surface of the guide plate 810 is a slope, which slopes downward toward the air inlet cavity 160, that is, the guide plate 810 is tilted toward the first gap 830 to guide the purified groundwater to the first gap 830. Exemplarily, the tilt angle of the guide plate 810 can be between 5° and 15°, such as 5°, 10°, 15° or any value between the two, and this application does not limit it.

[0040] Combination Figure 2 as well as Figure 3 In some embodiments, the side of the guide plate 810 facing the first gap 830 and the top of the filter element 820 facing the second gap 840 are sealed and connected by a sealing plate 860. This arrangement can prevent groundwater from entering the clean water between the guide plate 810 and the filter element 820 during the flow of the second gap, thus ensuring the purity of the clean water flowing out of the outlet.

[0041] In some embodiments, the guide channel 821 is inclined, with its top tip tilted toward the drain outlet 162 to guide the discharge of purified water. Exemplarily, the inclination angle of the guide channel 821 can be between 75° and 85°, such as 75°, 80°, 85°, or any value between the two; this application does not impose any limitation on this.

[0042] Combination Figure 2 as well as Figure 3 In some embodiments, the bottom of the tower body 100 is detachable. When iron-manganese particles accumulate to a set capacity at the bottom of the tower body 100, the bottom of the tower body 100 can be removed to clean the accumulated iron-manganese particles. Exemplarily, the tower body 100 also includes an annular baffle 190 and a support plate 191. The annular baffle 190 is connected to the bottom of the inner wall of the tower body 100, and the support plate 191 can be bolted to the bottom of the baffle to seal the central area of ​​the annular baffle 190. This support plate 191 is thus configured as the bottom of the tower body 100. To observe the iron-manganese particles at the bottom of the tower body 100, an observation window can be provided on the side wall of the third cavity 130, allowing personnel to observe the internal situation in real time from outside the tower body 100.

[0043] Combination Figures 1-3 In some implementations, the iron-manganese filter tower also includes multiple support columns 192, which are connected to the bottom of the tower body 100, thereby suspending the tower body 100 in the air to facilitate the disassembly and assembly of the support plate 191 at the bottom of the tower body 100.

[0044] It should be noted that after long-term operation, the iron and manganese removal filter tower provided in this application may accumulate excessive iron and manganese sludge on the surface of the packing, leading to an increase in pressure drop. This application can use a combined air-water backwash, that is, close the inlet, turn on the blower 720 and the drain outlet 162, so that the airflow flushes the packing layer from bottom to top, loosens and carries away the trapped material. If necessary, clean water can be introduced from the inlet 111 to assist in the flushing. The backwash wastewater is finally discharged from the drain outlet 162.

[0045] In summary, this application utilizes a Venturi jet to efficiently mix groundwater and air to form bubbles, which are then further abraded into water mist by a water distribution plate. The water mist flows downwards within the tower, while the air flows upwards. The water mist and air oxidize each other on the packing surface, increasing the contact area and reaction time between the groundwater and air, thereby improving reaction efficiency. This allows the equipment to achieve efficient oxidation of groundwater at a relatively low height, reducing space requirements, costs, and energy consumption, thus demonstrating significant practical value.

[0046] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A filter tower for removing iron and manganese, characterized in that, The iron and manganese removal filter tower includes: The tower body has a first partition and a second partition arranged vertically from top to bottom inside the tower body. The first partition and the second partition divide the interior of the tower body into a first cavity, a second cavity and a third cavity from top to bottom. The first cavity has a water inlet on its peripheral side, the second cavity has an air inlet on its peripheral side, and the second partition has multiple air vents. A bubble generator includes multiple Venturi jets, which are spaced apart in a second cavity. The water inlet of each Venturi jet passes through the first partition and communicates with the first cavity. The air inlet of each Venturi jet is located in the second cavity. The output of each Venturi jet passes through the second partition and communicates with the third cavity. A water distribution plate and an air distribution plate are arranged vertically from top to bottom in the third cavity at intervals to divide the third cavity into a dividing cavity, a reaction cavity, and an air inlet cavity from top to bottom. The water distribution plate has a grid-shaped water distribution hole, and the air distribution plate has a grid-shaped air distribution hole. An air inlet and a drain outlet are provided on the circumferential surface of the air inlet cavity. The reaction cavity is filled with filler.

2. The iron and manganese removal filter tower according to claim 1, characterized in that, The first cavity has a connecting port on its peripheral side, which is located above the water inlet. Multiple connecting ports are spaced apart around the periphery of the tower body. The iron and manganese removal filter tower also includes a dust cover, which is connected to the top of the tower body. The edge of the dust cover protrudes outward and is spaced apart on the outside of the plurality of communication ports.

3. The iron and manganese removal filter tower according to claim 1, characterized in that, The air inlets are arranged at intervals around the circumference of the second cavity.

4. The iron and manganese removal filter tower according to claim 1, characterized in that, Multiple air vents are arranged around the outer periphery of the bubble generator.

5. A filter tower for removing iron and manganese according to any one of claims 1-4, characterized in that, The iron and manganese removal filter tower also includes a filter assembly, which is disposed inside the air inlet chamber.

6. The iron and manganese removal filter tower according to claim 5, characterized in that, The filtering component includes: A baffle plate is disposed inside the air inlet cavity. The baffle plate and one side of the air inlet cavity have a first gap. The air inlet is disposed above the baffle plate, and the drain outlet is disposed below the baffle plate and located on the other side of the air inlet cavity. A filter element is disposed in the air inlet cavity and spaced below the guide plate. The drain outlet is located above the filter element. The filter element and the air inlet cavity have a second gap on one side and a third gap at the bottom of the filter element and the air inlet cavity. The first gap, the second gap and the third gap are connected in sequence. The filter element is provided with multiple vertically penetrating guide channels.

7. The iron and manganese removal filter tower according to claim 6, characterized in that, The top surface of the guide plate is a slope, and the slope is inclined downwards towards the first gap.

8. The iron and manganese removal filter tower according to claim 6, characterized in that, The flow channel is inclined, and the top of the flow channel is inclined away from the second gap.

9. The iron and manganese removal filter tower according to claim 6, characterized in that, The guide plate facing the first gap and the top of the filter facing the second gap are connected by a sealing plate.

10. An iron and manganese removal filter tower according to any one of claims 6-9, characterized in that, The bottom of the tower body is detachable.

Images