Filtering device for removing iron and manganese

Abstract

The utility model relates to the technical field of treatment of wastewater containing iron and manganese, in particular to a filtering device for removing iron and manganese. The device comprises a box body, the interior of the box body is sequentially divided into a reaction part, a filtering part and a water outlet part from top to bottom, the box body is provided with an air inlet, a water inlet and an alkali adding opening which are communicated with the reaction part and a water outlet communicated with the water outlet part, and a blocking baffle is movably arranged between the reaction part and the filtering part. The blocking baffle is used for communicating or separating the reaction part and the filtering part, and a stirring mechanism is arranged between the reaction part and the blocking baffle. The reaction part and the filtering part can be separated by utilizing the blocking baffle, so that water containing iron and manganese can be fully oxidized and precipitated in the reaction part, then the blocking baffle is opened, the reaction part is communicated with the filtering part, filtering treatment is performed, oxidation precipitation and filtering are performed in stages, and the treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of iron-manganese-containing wastewater treatment, in particular to a filtering device for removing iron and manganese. Background Art

[0002] With the rapid development of industrial level, groundwater in many places has been polluted to varying degrees, and the content of iron and manganese in groundwater has also increased, seriously affecting the use value and safety of groundwater. In principle, to remove iron and manganese from groundwater, it is necessary to first oxidize it. After oxidation, the iron and manganese will form precipitation and then be removed from the water body.

[0003] In the prior art, the traditional process often uses the "addition of oxidants + precipitation filtration" method to remove iron and manganese, and then uses the reverse osmosis filtration process to extract water.

[0004] However, in existing treatment devices, the oxidation and sedimentation and filtration steps are usually carried out simultaneously, and the aeration oxidation and sedimentation and filtration steps are not carried out in stages, resulting in uneven and insufficient reactions during actual use, and poor actual purification treatment effects. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a filtering device for removing iron and manganese. The reaction part and the filtering part can be separated by a blocking baffle, so that the water containing iron and manganese can be fully oxidized and precipitated in the reaction part. After that, the blocking baffle is opened, and the reaction part is connected with the filtering part for filtering treatment, so that the oxidation precipitation and filtering classification operations are carried out to improve the treatment effect.

[0006] In view of the above technical problems, the technical solution provided by the utility model is a filtering device for removing iron and manganese, comprising a box body, the interior of which is divided into a reaction part, a filtering part and a water outlet part from top to bottom, the box body is provided with an air inlet, a water inlet and an alkali addition port connected to the reaction part, and a water outlet connected to the water outlet part, a blocking baffle is movably arranged between the reaction part and the filtering part, the blocking baffle is used to connect or isolate the reaction part and the filtering part, and a stirring mechanism is arranged between the reaction part and the blocking baffle.

[0007] Furthermore, the blocking baffle includes a plurality of blocking blades spliced ​​in sequence along the left-right direction, a sealing structure is arranged between two adjacent blocking blades, the blocking blades are rotatably arranged on the box body, and the rotation axis of the blocking blades extends along the front-back direction, and also includes a driving mechanism, which is used to drive each of the blocking blades to rotate in the same direction.

[0008] Furthermore, the facing sides of two adjacent blocking blades are respectively provided with a matching first step structure and a second step structure, and the sealing structure is a sealing strip sandwiched between the step surfaces of the first step structure and the second step structure.

[0009] Furthermore, the step surfaces of the first step structure and the second step structure are respectively provided with sealing grooves extending in opposite directions, and the shapes of the two sealing grooves when closed are adapted to the shape of the sealing strip, and the sealing strip is used to be fixedly arranged in one of the sealing grooves.

[0010] Furthermore, in the first step structure, the included angles between the two side surfaces arranged on both sides of the step surface and the step surface are both obtuse angles.

[0011] Furthermore, a rotation shaft is respectively provided on the front and rear sides of the blocking blade, and the rotation shaft is arranged in the middle position of the blocking blade in the left-right direction, and a first step structure and a second step structure are respectively provided on the left and right sides of the blocking blade.

[0012] Furthermore, it also includes a linkage mechanism, and the blocking blades rotate synchronously through the linkage mechanism.

[0013] Furthermore, the linkage mechanism is a gear chain mechanism.

[0014] Furthermore, the filter part includes a filter box with an upper opening, the filter box is horizontally slidably connected to the box body, the filter box contains a manganese sand filter layer and a quartz sand filter layer from top to bottom, and a plurality of water permeable holes are arranged at the bottom of the filter box.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) The air inlet can be used to inject air into the reaction part. The stirring mechanism can be used to quickly mix the iron-manganese-containing water with air and perform aeration oxidation. The alkali addition port can be used to adjust the pH value of the raw water, and the iron-manganese ions after oxidation can be controlled to form precipitation. After filtering through the filter part, the precipitation can be efficiently intercepted. At the same time, during oxidation precipitation, the reaction part and the filter part can be separated by a blocking baffle, so that the iron-manganese-containing water can be fully oxidized and precipitated in the reaction part. After that, the blocking baffle is opened, and the reaction part is connected to the filter part for filtration treatment, so that the oxidation precipitation and filtration classification operations are performed to improve the treatment effect.

[0017] (2) The blocking baffle is composed of a plurality of rotating blocking blades, which can facilitate opening and closing of the blocking baffle.

[0018] (3) The first step structure and the second step structure are used in conjunction with the sealing strip to improve the sealing effect.

[0019] (4) The sealing groove can be used to further increase the sealing path and improve the sealing performance.

[0020] (5) By utilizing the linkage structure, a plurality of blocking blades can form a structure similar to a shutter and rotate synchronously, thereby facilitating the opening and closing of the blocking baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front cross-sectional view of the blocking baffle of the filter device in Example 1 of the utility model when it is opened.

[0022] Figure 2 It is a front cross-sectional view of the blocking baffle of the filter device in Example 1 of the utility model when it is closed.

[0023] Figure 3 It is a schematic diagram of the external structure of the filtering device in Example 1 of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the linkage structure in Example 1 of the utility model cooperating to open the blocking baffle.

[0025] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0026] Figure 6 It is a structural schematic diagram of the linkage structure in Example 1 of the utility model cooperating with the closing and blocking baffle.

[0027] Figure 7 It is a front view of the blocking blade in Example 1 of the utility model.

[0028] Figure 8 It is a top view of the blocking blade in Example 1 of the utility model.

[0029] Fig. 9 It is a top view of the blocking baffle, the first installation box and the second installation box in Example 1 of the utility model.

[0030] Fig.10 yes Fig. 9 Enlarged view of point B in the middle.

[0031] Fig.11 yes Fig. 9 Enlarged view of point C in the middle.

[0032] In the figure: 1. Motor; 2. Stirring blades; 3. Alkali adding port; 4. Air inlet; 5. Manganese sand filter layer; 6. Quartz sand filter layer; 7. Box; 8. Liquid outlet pipe; 9. Water inlet; 10. Feeding port; 11. Vent pipe; 12. Rotating bearing; 13. Filter screen; 14. Support leg; 15. Rotating shaft; 16. Control ball valve; 17. Filter box; 18. Timer; 19. Transparent window; 20. Water permeable hole; 21. Blocking baffle;

[0033] 22. knob; 23. sealing strip; 24. left baffle; 25. right baffle; 26. blocking blade; 261. first step structure; 262. second step structure; 263. sealing groove; 27. rotating shaft; 28. stopper; 29. ​​linkage mechanism; 30. chain; 31. gear; 32. first mounting box; 33. second mounting box; 34. first bearing; 35. sealing ring; 36. mounting cavity; 37. first mounting hole; 38. second mounting hole; 39. third mounting hole;

[0034] 40. Reaction section; 41. Filtration section; 42. Water outlet section. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application: Specific embodiment 1:

[0037] like Fig. 9 As shown, in this embodiment, the spacing direction between the left baffle 24 and the right baffle 25 is the left-right direction, the spacing direction between the first installation box 32 and the second installation box 33 is the front-back direction, and the first installation box 32 is located in front of the second installation box 33.

[0038] refer to Figures 1 to 11 The utility model is a filtering device for removing iron and manganese (hereinafter referred to as filtering device), comprising a box body 7, which is a hollow rectangular parallelepiped structure. The interior of the box body 7 is divided into a reaction part 40, a filtering part 41 and a water outlet 42 from top to bottom. The upper end of the box body 7 is provided with an air inlet 4, a water inlet 9 and an alkali adding port 3 connected to the reaction part 40. The lower part of the box body 7 is provided with a water outlet connected to the water outlet 42. A blocking baffle 21 is movably provided between the reaction part 40 and the filtering part 41. The blocking baffle 21 can be opened or closed to connect or isolate the reaction part 40 and the filtering part 41. A stirring mechanism is provided between the reaction part 40 and the blocking baffle 21.

[0039] Specifically, Figure 1 As shown, the stirring mechanism includes a motor 1, a stirring blade 2, a rotating bearing 12 and a rotating shaft 15. The upper end of the rotating shaft 15 is rotatably mounted on the housing 7 through the rotating bearing 12, the output end of the motor 1 extends downward and is fixedly mounted on the rotating shaft 15, and a stirring blade 2 is installed at the lower part of the rotating shaft 15. The stirring blade 2 is composed of multiple groups of single blades, and the multiple groups of single blades are evenly distributed on the horizontal plane and fixedly connected to the rotating shaft 15. In this way, after the reaction part 40 is inflated through the air inlet 4, the stirring blade 2 can be driven to rotate through the motor 1, and the raw water in the reaction part 40 is aerated and stirred, so that the raw water is evenly mixed and fully oxidized.

[0040] like Figure 1 ,2 As shown, in this embodiment, the filter part 41 includes a filter box 17 with an upper opening. Preferably, the filter box 17 is horizontally slidably connected to the box body 7, and the filter box 17 contains a manganese sand filter layer 5 and a quartz sand filter layer 6 from top to bottom, and a plurality of water permeable holes 20 are provided at the bottom of the filter box 17.

[0041] Specifically, a strip opening (not shown in the figure) is provided on the front and rear side surfaces of the filter part 41 inside the box body 7, and the height of the strip opening is adapted to the height of the filter box 17. The front and rear sides of the filter box 17 are provided with folding edges adapted to the strip opening, and the folding edges are respectively slidably provided in the strip openings on the corresponding sides. At the same time, in order to ensure sealing, a sealing pad wrapped with the folding edges is provided in the strip opening. A slideway for the filter box 17 to enter and exit is provided on the right side surface of the box body 7 corresponding to the strip opening, so that the filter box 17 enters the box body 7 through the slideway, and slides in the strip opening, thereby making the filter box 17 slide in and out. The filter box 17 is detachably connected to the side wall of the box body 7, and can be easily disassembled, cleaned and replaced after filtering.

[0042] In this embodiment, the blocking baffle 21 is arranged at intervals on the upper side of the filter part 41, and the blocking baffle 21 includes a plurality of blocking blades 26 spliced ​​in sequence along the left-right direction, and a sealing structure is arranged between two adjacent blocking blades 26. The blocking blades 26 are rotatably arranged on the box body 7, and the rotation axis 27 line of the blocking blade 26 extends along the front-back direction, and also includes a driving mechanism, which is used to drive each blocking blade 26 to rotate in the same direction.

[0043] Specifically, Figure 1 , 2 As shown, the blocking baffle 21 further includes a left baffle 24 and a right baffle 25 respectively arranged on the left and right inner side walls of the box body 7, and a plurality of blocking blades 26 are arranged between the left baffle 24 and the right baffle 25. The left baffle 24, the right baffle 25 and the plurality of blocking blades 26 have the same height. When the plurality of blocking blades 26 rotate clockwise, each blocking blade 26 forms a blockage with the left baffle 24 and the right baffle 25. When the plurality of blocking blades 26 rotate counterclockwise, a channel is formed between adjacent blocking blades 26, connecting the reaction part 40 and the filter part 41, and the water after oxidation precipitation can flow down to the filter part 41 for filtering treatment.

[0044] In this way, the oxidation precipitation reaction can be separated from the filtration treatment, and graded treatment can be performed to ensure that the oxidation precipitation reaction is sufficient before filtration, thereby ensuring the treatment effect. At the same time, the rotation method can also facilitate the opening and closing of the blocking baffle 21. The blocking baffle 21 can be always set inside the box 7 to improve the integration. After the oxidation is completed, the water flow can be evenly dropped to the filter part 41 to improve the subsequent filtration effect.

[0045] Preferably, in this embodiment, Figure 4 , 6 As shown in FIG. 7 , the facing sides of two adjacent blocking blades 26 are respectively provided with a first step structure 261 and a second step structure 262 that match each other. The step surface of the first step structure 261 is arranged upward, and the step surface of the second step structure 262 is arranged downward.

[0046] The sealing structure is a sealing strip 23 sandwiched between the step surfaces of the first step structure 261 and the second step structure 262. And preferably, sealing grooves 263 extending in opposite directions are respectively provided on the step surfaces of the first step structure 261 and the second step structure 262. The shapes of the two sealing grooves 263 on the opposite sides of the two adjacent blocking blades 26 when closed are adapted to the shape of the sealing strip 23, and the sealing strip 23 is used to be fixed in one of the sealing grooves 263. In this way, the first step structure 261 and the second step structure 262 are used in conjunction with the sealing strip 23 to improve the sealing effect. The sealing groove 263 is used to facilitate the fixing of the sealing strip 23 on the one hand, and on the other hand, the sealing path can be further increased to improve the sealing performance. Of course, in other embodiments, when the sealing and use requirements are met, the sealing groove 263 may not be provided, and the sealing strip 23 is directly laid on the corresponding step surface.

[0047] Preferably, Figure 7 , 8 As shown, in the first step structure 261, the angles between the two side surfaces arranged on both sides of the step surface and the step surface are both obtuse angles, and the cross section of the first step structure 261 is generally in the shape of a broken line. Similarly, the shape of the second step structure 262 is adapted to the shape of the first step structure 261, so that when the blocking baffle 21 is closed, the first step structure 261 and the second step structure 262 can be mutually matched and engaged to improve the sealing effect, and at the same time, the upper side surface of the blocking baffle 21 is a flat surface, which can prevent sediment from remaining in the gap between adjacent blocking blades 26.

[0048] Specifically, Figure 7 , 8 As shown, a rotating shaft 27 is respectively provided on the front and rear sides of the blocking blade 26, and the rotating shaft 27 is arranged in the middle position of the blocking blade 26 in the left and right directions. A first step structure 261 and a second step structure 262 are respectively provided on the left and right sides of the blocking blade 26. The sealing strip 23 is arranged in the sealing groove 263 of the first step structure 261 on the left side of the blocking blade 26. At the same time, as shown Figure 1 , 2 As shown, the left baffle 24 and the right baffle 25 are also respectively provided with a second step structure 262 and a first step structure 261 adapted to the blocking blades 26 on the left and right sides, and a sealing strip 23 is provided on the right baffle 25, so that the blocking blades 26 can form a blocking baffle 21 with a smooth surface together with the left baffle 24 and the right baffle 25.

[0049] In this embodiment, if Figure 1 , 2 As shown, a stop block 28 is also provided at the upper interval on the right side of the blocking baffle 21. The stop block 28 is fixedly mounted on the inner side of the box body 7, and the stop block 28 is located between the stirring blocking blade 26 and the blocking baffle 21, and the distance between the stop block 28 and the blocking baffle 21 is not greater than the distance between the blocking baffle 21 and the filter part 41. In this way, when the blocking baffle 21 is opened, the blocking blade 26 can be prevented from interfering with the stirring blade 2 and the filter part 41.

[0050] In this embodiment, if Figure 4 , 5 As shown, the filtering device also includes a linkage mechanism 29, and each blocking blade 26 rotates synchronously through the linkage mechanism 29. Specifically, in the present embodiment, the linkage mechanism 29 is a gear chain mechanism, wherein a gear 31 is fixedly mounted on the rotating shaft 27 at the rear side of each blocking blade 26, and each gear 31 is driven to rotate synchronously through a chain 30. In this way, through the linkage mechanism 29, a plurality of blocking blades 26 can form a structure similar to a shutter, which rotates synchronously, making it easy to open and close the blocking baffle 21. Of course, in other embodiments, the linkage mechanism 29 can also be a multi-link mechanism or a gear rack mechanism, or the linkage mechanism 29 can only include gears 31, in which case an odd number of transmission gears are arranged between adjacent gears 31 to ensure the synchronous rotation of adjacent gears 31.

[0051] Specifically, Fig. 9 , 10 As shown in FIG. 11 , a first installation box 32 and a second installation box 33 are respectively installed on the front and rear sides of the blocking baffle 21 , and a sealing strip 23 is provided between the first installation box 32 and the second installation box 33 and the blocking baffle 21 for sealing and water stopping.

[0052] A first mounting hole 37 is opened on the first mounting box 32 at a position corresponding to the rotating shaft 27 on the front side of the blocking blade 26. The rotating shaft 27 on the front side of the blocking blade 26 is rotatably mounted on the first mounting hole 37 through a first bearing 34 arranged on the inner side of the first mounting hole 37, and a sealing ring 35 is arranged between the outer side of the first mounting hole 37 and the rotating shaft 27 on this side for sealing.

[0053] An installation cavity 36 is provided inside the second installation box 33, and the gear chain mechanism is provided as a whole in the installation cavity 36. A second installation hole 38 and a third installation hole 39 are provided on the second installation box 33 at the front and rear sides of the installation cavity 36, corresponding to the positions of the rear rotating shaft 27. The rear rotating shaft 27 is sealed and installed in the second installation hole 38 through a sealing ring 35. The rear rotating shaft 27 extends backward and is rotatably installed in the third installation hole 39 through a first bearing 34. The gear 31 is fixedly installed on the corresponding rear rotating shaft 27.

[0054] The left and right lengths of the first installation box 32 and the second installation box 33 match the left and right lengths of the box body 7 , and the first installation box 32 and the second installation box 33 are sealedly installed on the corresponding sides of the box body 7 .

[0055] At the same time, if Figure 3 , 9 As shown, the rear rotating shaft 27 on the far right extends out of the box body 7, and the driving mechanism is a knob 22 disposed on the rotating shaft 27, so that the linkage mechanism 29 can be driven by driving the knob 22, thereby driving the blocking baffle 21 to open and close. Of course, in other embodiments, the driving mechanism can be a driving motor that drives the rotating shaft 27 to rotate.

[0056] In this embodiment, the sealing ring 35 is a rotary sealing structure such as an end face sealing ring 35, and the end face sealing ring 35 includes a dynamic ring and a static ring. The dynamic ring rotates with the rotating shaft 15, and its end face and the static ring end face are attached to each other and slide relative to each other, forming a sealing end face to prevent medium leakage. The sealing performance between the shaft and the hole is ensured while ensuring the rotation of the shaft. Of course, there are many forms of rotary sealing structures, which are common knowledge known to those skilled in the art and will not be repeated here.

[0057] In this embodiment, if Figure 1 , 2 As shown in Figures 3 and 4, a feed port 10 is also provided at the upper part of the box body 7, and a plugging cover is provided on the feed port 10. The feed port 10 can be used as an auxiliary port to add an acidic solution into the reaction part 40 to facilitate the control of the pH value of the water in the reaction part 40, or to add different types of chemical oxidants into the reaction part 40 to ensure sufficient oxidation precipitation.

[0058] At the same time, in this embodiment, a pH value automatic regulator, an acidic supplementary liquid reagent bottle and an alkaline supplementary liquid reagent bottle (not shown in the figure) are also provided on the side of the box body 7. The acidic supplementary liquid reagent bottle and the alkaline supplementary liquid reagent bottle are both connected to the reaction part 40 of the pH value automatic regulator through a connecting pipe. In this way, the pH value in the reaction part 40 can be controlled to the optimal state in real time, the degree of automation is improved, and sufficient reaction is ensured.

[0059] In this embodiment, if Figure 3As shown, a transparent window 19 is further provided on the side of the box body 7, and the position of the transparent window 19 corresponds to the position of the reaction part 40 and the filtering part 41, and the position of the transparent window 19 is convenient for observing the reaction and filtering conditions in the box body 7. In other embodiments, a transparent window 19 can be provided in the reaction part 40 and the filtering part 41 respectively, and the position of the transparent window 19 avoids the position of the first installation box 32 and the second installation box 33 to avoid installation difficulties and liquid seepage.

[0060] In this embodiment, if Figure 3 As shown, a timer 18 is also provided on the side of the box body 7. In actual use, the setting of the timer 18 is convenient for controlling the reaction time. When the preset time is reached, the timer 18 will emit a prompt sound, which is convenient for the operator to perform subsequent operations in a timely manner.

[0061] In this embodiment, four supporting legs 14 are arranged at the bottom of the box body 7, and rollers are arranged at the bottom of each supporting leg 14. In actual use, it can be conveniently moved at any time when needed.

[0062] In this embodiment, if Figure 1 , 2 As shown, a water outlet is provided on the left and right sides of the water outlet 42, respectively. An L-shaped vent pipe 11 is connected to the left water outlet, and a liquid outlet pipe 8 is connected to the right water outlet. A filter screen 13 is arranged on the water outlet of the liquid outlet pipe 8, and a control ball valve 16 is provided on the vent pipe 11 and the liquid outlet pipe 8. The vent pipe 11 is used to release the reaction liquid in the water outlet at any time during the entire filtering process to measure the pH value, and can also be used to take out the reaction liquid in the precipitation process for subsequent experimental research. The liquid outlet pipe 8 is used to discharge the filtered water at the end of the reaction.

[0063] In this embodiment, preferably, the blocking baffle 21 is a stainless steel baffle.

[0064] The working process of the present application is as follows: when the raw water needs to be filtered, the blocking baffle 21 is closed to separate the reaction part 40 from the filtering part 41 .

[0065] First, the iron-manganese-containing raw water is introduced into the reaction part 40 through the water inlet 9, and the air is blown into the reaction part 40 through the air inlet 4. The stirring mechanism is started, and the stirring mechanism aerates and stirs the solution in the box 7 to make it evenly mixed and fully oxidized. After the set aeration time is reached, an alkaline solution is injected into the box 7 through the alkali addition port 3, and the pH value of the solution in the reaction part 40 is adjusted to alkaline, so that high-valent iron and manganese ions are precipitated, and the stirring mechanism is kept rotating to make the solution fully mixed.

[0066] The precipitation is observed through the transparent window 19. When the oxidation precipitation is fully reacted, the knob 22 is turned, the blocking blade 26 rotates, the blocking baffle 21 opens, and the treated solution precipitates fall to the filter layer. The precipitates are filtered and retained on the two layers of filter material in the filter box 17, and the precipitates are collected in the filter box 17.

[0067] Observe the sedimentation and filtration through the transparent window 19. After the filtration is completed, pull out the filter box 17 to clean the manganese sand filter layer 5 and the quartz sand filter layer 6 inside it to prevent the filter layer from being blocked by the sediment, ensure the normal filtration process, and ensure the effect of iron and manganese removal.

[0068] After the oxidation precipitation and filtration treatment is completed, the control ball valve 16 of the liquid outlet pipe 8 is opened to release the reacted water through the liquid outlet pipe 8 to complete the operation.

[0069] In summary, the filtering device of the utility model can inject air into the reaction part 40 by using the air inlet 4, and can make the iron-manganese-containing water and air quickly and evenly mixed and aerated and oxidized by using the stirring mechanism, and can adjust the pH value in the raw water by using the alkali adding port 3, and can control the iron-manganese ions after oxidation to form precipitation, and then filter through the filter part 41 to efficiently intercept the generated precipitation, and at the same time, during the oxidation precipitation, the reaction part 40 and the filter part 41 can be separated by the blocking baffle 21, so that the iron-manganese-containing water can be fully oxidized and precipitated in the reaction part 40, and then the blocking baffle 21 is opened, and the reaction part 40 is connected with the filter part 41 for filtering treatment, so that the oxidation precipitation and filtering classification operation are carried out to improve the treatment effect.

[0070] Embodiment 2: This embodiment provides a different blocking baffle. Different from Embodiment 1, in this embodiment, when the actual use requirements are met, the blocking baffle can also be a pull-out baffle. In this case, a pull-out groove is respectively provided on the front and rear side walls inside the box body. The front and rear side surfaces of the blocking baffle are slidably set in the pull-out groove, and a sealing gasket and other structural seals are provided between the pull-out groove and the blocking baffle. An opening adapted to the blocking baffle is provided on one side surface of the box body corresponding to the blocking baffle. The pull-out groove is connected with the opening. The blocking baffle slides through the opening and is slidably set in the pull-out groove. A sealing ring is provided between the blocking baffle and the opening to seal and prevent water. In this way, the reaction part and the filtration part can also be opened or isolated by pulling.

[0071] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0072] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0073] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A filtering device for removing iron and manganese, characterized in that: The invention comprises a box body, the interior of which is divided into a reaction part, a filtering part and a water outlet part from top to bottom in sequence; the box body is provided with an air inlet, a water inlet and an alkali adding port connected to the reaction part, and a water outlet connected to the water outlet part; a blocking baffle is movably provided between the reaction part and the filtering part, the blocking baffle is used to connect or isolate the reaction part and the filtering part; a stirring mechanism is provided between the reaction part and the blocking baffle.

2. The filtration device for removing iron and manganese according to claim 1, characterized in that: The blocking baffle includes a plurality of blocking blades spliced ​​in sequence along the left-right direction, a sealing structure is arranged between two adjacent blocking blades, the blocking blades are rotatably arranged on the box body, and the rotation axis of the blocking blades extends along the front-back direction, and also includes a driving mechanism, which is used to drive each of the blocking blades to rotate in the same direction.

3. The filtering device for removing iron and manganese according to claim 2, characterized in that: The facing sides of two adjacent blocking blades are respectively provided with a matching first step structure and a second step structure, and the sealing structure is a sealing strip sandwiched between the step surfaces of the first step structure and the second step structure.

4. The filtration device for removing iron and manganese according to claim 3, characterized in that: The step surfaces of the first step structure and the second step structure are respectively provided with sealing grooves extending in opposite directions. The shapes of the two sealing grooves when closed are adapted to the shape of the sealing strip, and the sealing strip is used to be fixedly arranged in one of the sealing grooves.

5. The filtering device for removing iron and manganese according to claim 3, characterized in that: In the first step structure, the included angles between the two side surfaces arranged on both sides of the step surface and the step surface are both obtuse angles.

6. The filtration device for removing iron and manganese according to claim 3, characterized in that: A rotating shaft is respectively arranged on the front and rear sides of the blocking blade, and the rotating shaft is arranged in the middle position of the blocking blade in the left-right direction. A first step structure and a second step structure are respectively arranged on the left and right sides of the blocking blade.

7. The filtering device for removing iron and manganese according to claim 2, characterized in that: It also includes a linkage mechanism, and each of the blocking blades rotates synchronously through the linkage mechanism.

8. The filtering device for removing iron and manganese according to claim 7, characterized in that: The linkage mechanism is a gear chain mechanism.

9. The filtering device for removing iron and manganese according to claim 1, characterized in that: The filter part comprises a filter box with an upper opening, the filter box is horizontally slidably connected to the box body, the filter box contains a manganese sand filter layer and a quartz sand filter layer from top to bottom, and a plurality of water permeable holes are arranged at the bottom of the filter box.

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