Composite ecological filter tank capable of distributing water alternately in two directions

Abstract

The invention discloses a two-way alternate water distribution composite ecological filter which comprises a separation tank, a clear water tank and a sewage treatment mechanism, the sewage treatment mechanism comprises a plurality of water collection tanks and composite tanks which are alternately arranged between the separation tank and the clear water tank, the separation tank is used for solid-liquid separation of sewage, and the composite tanks are used for purification treatment of the sewage; a mesh cylinder and a filter plate are arranged in the separation tank, the separation tank filters sewage through the mesh cylinder and the filter plate, a guide plate and a discharge plate are fixedly connected to the top end and one side of the mesh cylinder in the separation tank respectively, the sides, close to the mesh cylinder, of the guide plate and the discharge plate are tangent to the mesh cylinder, and a plurality of pendulum bobs are arranged below the filter plate in the separation tank. The pendulum bob is used for knocking the filter plate. A plurality of water collecting tanks and composite tanks are alternately arranged between the separation tank and the clear water tank, and the separation tank can be used for carrying out solid-liquid separation on sewage, so that the influence of solid particles and impurities in the sewage on the subsequent sewage treatment effect and efficiency is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of composite ecological filter tanks, in particular to a composite ecological filter tank with bidirectional alternating water distribution. Background Art

[0002] The composite ecological filter is a wastewater treatment system that integrates multiple ecological treatment technologies. It aims to achieve efficient purification and ecological restoration of wastewater. The system is usually composed of multiple units, including biofilm reactors, plant root filters, microbial filters, etc. Each unit plays a different ecological treatment function.

[0003] Before introducing sewage into the composite ecological filter, pretreatment is usually required. The purpose is to remove large suspended particles in the sewage. On the one hand, it can avoid clogging the filter pipe and affecting the flow and treatment of sewage. On the other hand, it can prevent its accumulation in the filter to form humus and destroy the composite filler and plant roots, thereby ensuring the efficiency and effectiveness of sewage treatment.

[0004] After searching, the Chinese invention patent with publication number CN105366802B discloses an ecological filter device and a method for treating sewage, including a water tank and an ecological filter shell, the composite filler area in the ecological filter shell is filled with attapulgite and bamboo filler, the mass ratio of the two is (1-3):1, and crops are planted on the composite filler area; the attapulgite is prepared from attapulgite, flour and iron filings according to mass fractions of 50-60%, 20-25% and 15-30%. The present invention uses two fillers to form a composite filler, which is conducive to forming a more complex ecosystem and a more stable ecological chain, suitable for use by a single household or several households nearby, and the treatment effect is guaranteed under low temperature conditions. This application treats sewage by using aquatic plants and composite fillers by directing the sewage into an ecological filter tank with composite fillers at the bottom and aquatic plants planted on the top. However, in addition to chemicals or fine particles that are invisible to the naked eye, the sewage also contains solid debris that is visible to the naked eye. If it is directly directed into the filter tank, it may cause problems such as clogging the pipes and damaging the plant roots and composite fillers, thus affecting the effect of the ecological filter tank in filtering sewage. Summary of the invention

[0005] In view of the above-mentioned prior art, the present invention provides a composite ecological filter with two-way alternating water distribution, and the main technical problem to be solved is how to ensure the effect of the ecological filter in filtering sewage.

[0006] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0007] A composite ecological filter with two-way alternating water distribution, comprising a separation tank, a clear water tank and a sewage treatment mechanism. The sewage treatment mechanism includes a plurality of water collection tanks and composite tanks alternately arranged between the separation tank and the clear water tank. The separation tank is used for solid-liquid separation of sewage, and the composite tank is used for purification treatment of sewage;

[0008] Inside the separation tank, there are a mesh cylinder and a filter plate. The separation tank filters sewage through the mesh cylinder and the filter plate. Inside the separation tank, a guide plate and a discharge plate are respectively fixedly connected to the top and one side of the mesh cylinder. The sides of the guide plate and the discharge plate close to the mesh cylinder are tangent to the mesh cylinder. Inside the separation tank, several pendulums are arranged below the filter plate, and the pendulums are used to strike the filter plate. Inside the mesh cylinder, there is a water wheel, and the water wheel is used to drive the rotation of the mesh cylinder and the swing of the pendulums.

[0009] Furthermore, a guide plate is fixedly connected to one side of the top of the mesh cylinder inside the separation tank. The guide plate and the guide plate are in an inverted "eight" shape. An outlet is opened in the middle of the side of the separation tank away from the guide plate. The discharge plate is fixedly connected to the separation tank at the outlet, and the discharge plate is in a "丿" shape. A rotating rod is rotatably connected to the top of one inner wall of the separation tank. The water wheel and the mesh cylinder are both fixedly connected to the outside of the rotating rod.

[0010] Furthermore, a rotating shaft is rotatably connected to the bottom of one inner wall of the separation tank. A plurality of swing rods are fixedly and equidistantly connected to the outside of the rotating shaft. The number of pendulums is the same as that of the swing rods and they correspond one by one. The pendulums are fixedly connected to one end of the swing rods, and the materials of the pendulums and the swing rods are both rubber. The top and bottom of the other side of the separation tank are both provided with first through holes. One ends of the rotating rod and the rotating shaft respectively extend to the outside of the separation tank at the two first through holes.

[0011] Furthermore, one ends of the rotating rod and the rotating shaft outside the separation tank are respectively connected with a driving wheel and a driven wheel by key connection. The driving wheel and the driven wheel are both belt wheels, and the outside of the driving wheel and the driven wheel is sleeved with the same belt. The diameter of the driving wheel is smaller than that of the driven wheel. The filter plate is in a curved shape with a high middle and low sides.

[0012] Furthermore, a mesh plate is provided at the top of the composite tank. A circular opening is opened in the middle of the plate body of the mesh plate, and a planting basket is provided at the circular opening of the mesh plate. A fixing ring is fixedly connected to the outer top of the planting basket. The diameter of the fixing ring is larger than the diameter of the circular opening. A plurality of biofilm fillers are fixedly and equidistantly connected to the inner wall of the top of the mesh plate outside the circular opening.

[0013] Furthermore, a second through hole is opened in the middle of the bottom inner wall of the composite tank, and a support shaft is rotatably connected to the composite tank at the second through hole. A first gear is connected to the top of the support shaft by key connection. A wave wheel is fixedly connected to the top of the first gear. A bearing is fixedly connected to the outer top of the support shaft. A plurality of connecting shafts are rotatably connected to the outside of the bearing at equal intervals.

[0014] Furthermore, one end of the connecting shaft is connected to the second gear through a key, a plurality of stirring rods are fixedly connected to one side of the second gear, and the inner wall of the bottom end of the composite groove is fixedly connected to the outer side of the second through hole. The third gear is a bevel gear ring, the first gear and the second gear are both bevel gears, and the second gear is meshed with the first gear and the third gear.

[0015] Furthermore, a third through hole is opened on one side of the bottom end of the separation trough, on both sides of the bottom end of the water collecting trough, on both sides of the bottom end of the composite trough, and on one side of the bottom end of the clean water trough. Pipes are fixedly connected at the third through holes between the separation trough and the water collecting trough, between the water collecting trough and the composite trough, and between the clean water trough and the water collecting trough. Support rods are fixedly connected at the four outer corners of the bottom ends of the separation trough and the composite trough. The bottom ends of the four support rods are fixedly connected to the same base. A reduction motor is fixedly connected to the base below the composite trough, and the output shaft of the reduction motor is fixedly connected to the support shaft.

[0016] Furthermore, a pipe connector is fixedly connected to one end of the pipes on the separation tank and the clean water tank.

[0017] The beneficial effects of the present invention are:

[0018] 1. This device alternately sets a number of water collecting tanks and compound tanks between the separation tank and the clean water tank. The separation tank can be used to separate the solid and liquid of the sewage, so as to prevent the solid particles and debris in the sewage from affecting the effect and efficiency of the subsequent sewage treatment. The scraping of the discharge plate on the surface of the mesh cylinder and the knocking of the pendulum on the filter can also ensure the filtration effect of the sewage by preventing the mesh cylinder and the filter from being blocked. Secondly, when using this device, the pipes on the separation tank and the clean water tank can be regularly replaced to achieve two-way alternating water distribution. This can not only backwash the pipes and the compound tank to avoid blockage caused by dirt accumulation, but also ensure that the plants maintain a vigorous and uniform nutrient-rich absorption function, so as to further ensure the sewage treatment effect.

[0019] 2. By setting up the impeller and the stirring rod, the rotation of the two in the composite tank can form a water flow, and the water flow can ensure the full contact between the water body and the plant roots and the biofilm filler. At the same time, with the combination of aeration and electrolysis, the sewage treatment effect can be guaranteed;

[0020] 3. By setting a pipe connector on the pipes connected to the separation tank and the clean water tank, the pipe connector can not only ensure the convenience of replacing the pipes between the two, but also maintain the stability of the connection after the pipe replacement, avoiding the loose connection caused by frequent disassembly of the pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a composite ecological filter tank with bidirectional alternating water distribution in Example 1 of the present application;

[0022] Figure 2 It is a cross-sectional view of a separation tank of a composite ecological filter tank with bidirectional alternating water distribution in Example 1 of the present application;

[0023] Figure 3 It is a side cross-sectional view of a separation tank of a composite ecological filter tank with bidirectional alternating water distribution in Example 1 of the present application;

[0024] Figure 4 It is a front cross-sectional view of a composite tank of a composite ecological filter tank with bidirectional alternating water distribution in Example 1 of the present application;

[0025] Figure 5 This is a schematic diagram of a pipe connector of a composite ecological filter with bidirectional alternating water distribution in Example 2 of the present application.

[0026] Description of Figure Numbers:

[0027] Separation tank 1, guide plate 101, guide plate 102, mesh cylinder 103, filter plate 104, rotating shaft 105, driven wheel 106, belt 107, rotating rod 108, driving wheel 109, discharge plate 110, water wheel 111, pendulum 112, pendulum 113, water collecting tank 2, composite tank 3, fixing ring 301, planting basket 302, mesh plate 303, biofilm filler 304, impeller 305, stirring rod 306, second gear 307, connecting shaft 308, bearing 309, supporting shaft 310, third gear 311, first gear 312, clean water tank 4, base 5, support rod 6, pipeline 7, pipeline connector 701. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, the expression "some embodiments" is related to a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0029] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0030] Example 1

[0031] Refer to the attached Figure 1-4 The present application provides a composite ecological filter tank with bidirectional alternating water distribution, comprising a separation tank 1, a clean water tank 4 and a sewage treatment mechanism, wherein the sewage treatment mechanism comprises a plurality of water collecting tanks 2 and a composite tank 3 alternately arranged between the separation tank 1 and the clean water tank 4, the separation tank 1 is used for solid-liquid separation of sewage, and the sewage can be pre-treated by the separation tank 1 to remove solid dirt and particulate matter carried in the sewage to avoid the presence of solid dirt and particulate matter that will block the pipeline 7 and accumulate to form humus and damage the composite filler and plant root system, and the composite tank 3 is used for sewage purification;

[0032] A mesh cylinder 103 and a filter plate 104 are provided inside the separation tank 1, and the separation tank 1 filters sewage through the mesh cylinder 103 and the filter plate 104. The mesh cylinder 103 and the filter plate 104 can perform double filtration on the sewage, thereby ensuring the effect of solid-liquid separation. A guide plate 102 and a discharge plate 110 are fixedly connected to the top and one side of the mesh cylinder 103 inside the separation tank 1, respectively. The guide plate 102 and the discharge plate 110 are tangent to the mesh cylinder 103 on one side close to the mesh cylinder 103, and the two can scrape the surface of the mesh cylinder 103 when the mesh cylinder 103 rotates. Therefore, after the mesh cylinder 103 blocks the solid dirt in the sewage on its surface, the guide plate 102 and the discharge plate 110 can make the dirt fall onto the discharge plate 110 by scraping, and along the discharge plate The surface of 110 is guided out of the separation tank 1. A plurality of pendulums 113 are provided inside the separation tank 1 below the filter plate 104. The pendulums 113 are used to strike the filter plate 104. A water wheel 111 is provided inside the mesh cylinder 103. The water wheel 111 is used to drive the mesh cylinder 103 to rotate and the pendulum 113 to swing. When pouring sewage into the separation tank 1, the water wheel 111 can rotate under the impact of the water flow. On the one hand, it can drive the mesh cylinder 103 to rotate, and on the other hand, it can drive the pendulum 113 to rotate to strike the filter plate 104, thereby causing the filter plate 104 to vibrate. In this case, the dirt generated on the filter plate 104 due to filtering the sewage will descend along the inclined surfaces on both sides thereof, thereby avoiding clogging thereof and ensuring the filtering effect of the filter plate 104 on sewage.

[0033] Preferably, a guide plate 101 is fixedly connected inside the separation tank 1 at one side of the top end of the mesh cylinder 103. The guide plate 101 and the material guide plate 102 are in an inverted "eight" shape. The guide plate 101 and the material guide plate 102 can jointly form a feeding assembly for guiding sewage into the separation tank 1, and the two can ensure that the part of the sewage flushing the mesh cylinder 103 is at one side of its top end. In this case, as the dirt accumulates on the surface of the mesh cylinder 103, its center of gravity will shift, so the effect of the discharge plate 110 scraping the dirt on the surface of the mesh cylinder 103 can be ensured. An outlet is provided in the middle of the side of the separation tank 1 away from the material guide plate 102. The discharge plate 110 is fixedly connected to the separation tank 1 at the outlet, and the discharge plate 110 is in a "丿" shape. The sides of the discharge plate 110 and the material guide plate 102 in contact with the mesh cylinder 103 can both be set as blade surfaces, so the effect of removing dirt can be ensured. A rotating rod 108 is rotatably connected to the top end of the inner wall on one side of the separation tank 1. The water wheel 111 and the mesh cylinder 103 are both fixedly connected to the outside of the rotating rod 108. Therefore, when the water flow impacts the water wheel 111, the water wheel 111 can drive the mesh cylinder 103 to rotate through the rotating rod 108, thereby realizing the effect of cleaning dirt in real time.

[0034] Preferably, a rotating shaft 105 is rotatably connected to the bottom end of the inner wall on one side of the separation tank 1. A number of swing rods 112 are fixedly and equidistantly connected to the outside of the rotating shaft 105. The number of the pendulum weights 113 is the same as that of the swing rods 112 and they correspond one by one. The pendulum weight 113 is fixedly connected to one end of the swing rod 112, and the materials of the pendulum weight 113 and the swing rod 112 are both rubber. When the rotating shaft 105 rotates, the swing rod 112 can drive the pendulum weight 113 to rotate. Therefore, the pendulum weight 113 can continuously strike the filter plate 104 to cause vibration, and then promote the filter plate 104 to separate and spread to the lower ends on both sides. First through holes are provided at the top and bottom of the other side of the separation tank 1. One ends of the rotating rod 108 and the rotating shaft 105 extend to the outside of the separation tank 1 at the two first through holes respectively.

[0035] Preferably, one ends of the rotating rod 108 and the rotating shaft 105 outside the separation tank 1 are respectively key-connected with a driving wheel 109 and a driven wheel 106. The driving wheel 109 and the driven wheel 106 are both belt wheels, and the same belt 107 is sleeved outside the driving wheel 109 and the driven wheel 106. The belt drive system composed of the driving wheel 109, the driven wheel 106 and the belt 107 can play a transmission effect between the rotating rod 108 and the rotating shaft 105. Therefore, the rotation of the rotating rod 108 generated by the water flow impacting the water wheel 111 can be used to drive the rotating shaft 105 to rotate, and then cause the vibration of the filter plate 104. The diameter of the driving wheel 109 is smaller than that of the driven wheel 106, and the filter plate 104 is in a curved shape with a high middle and low sides.

[0036] Preferably, a mesh plate 303 is provided at the top of the composite tank 3, a circular opening is provided in the middle of the plate body of the mesh plate 303, and a planting basket 302 is provided at the circular opening of the mesh plate 303, and a fixing ring 301 is fixedly connected to the outer top of the planting basket 302, and the diameter of the fixing ring 301 is larger than the diameter of the circular opening, and a plurality of biofilm fillers 304 are fixedly connected to the inner wall of the top of the mesh plate 303 at the outer side of the circular opening at equal intervals, and the biofilm filler 304 is a braided biological filler, which can utilize the biofilm on its surface to degrade pollutants in the sewage and indirectly produce nutrient-rich substances that can be absorbed by plants, and the plants can produce oxygen by absorbing part of the nutrient-rich substances, thereby assisting the sewage purification process, and an aeration and oxygenation mechanism and an electrolytic dephosphorization mechanism are also provided in the composite tank 3, and the two can cooperate with the above-mentioned plant roots and microorganisms to purify sewage.

[0037] Preferably, a second through hole is opened in the middle of the inner wall of the bottom end of the composite groove 3, and the composite groove 3 is rotatably connected to a support shaft 310 at the second through hole, the top end of the support shaft 310 is connected to a first gear 312 through a key, the top end of the first gear 312 is fixedly connected to a wave wheel 305, the outer top end of the support shaft 310 is fixedly connected to a bearing 309, and the outer side of the bearing 309 is rotatably connected to a plurality of connecting shafts 308 at equal intervals. One end of the connecting shaft 308 is connected to the second gear 307 by a key, and a plurality of stirring rods 306 are fixedly connected to one side of the second gear 307. The inner wall of the bottom end of the composite tank 3 is fixedly connected to the outer side of the second through hole with a third gear 311, and the third gear 311 is a bevel gear ring. The first gear 312 and the second gear 307 are both bevel gears, and the second gear 307 is meshed with the first gear 312 and the third gear 311. When the reduction motor drives the support shaft 310 to rotate, the support shaft 310 can drive the first gear 312 to rotate, and the first gear 312 can drive the impeller 305 to rotate to disturb the water flow. At the same time, due to the meshing of the second gear 307 and the first gear 312, the second gear 307 can rotate with the rotation of the first gear 312 and revolve around the periphery of the first gear 312, thereby driving the stirring rod 306 to rotate to further stir the water flow, thereby allowing the biofilm filler 304 and the plant root system to fully contact the water body, thereby ensuring the effect of sewage treatment.

[0038] Preferably, a third through hole is provided on one side of the bottom of the separation tank 1, on both sides of the bottom of the water collecting tank 2, on both sides of the bottom of the compound tank 3, and on one side of the bottom of the clean water tank 4. Pipes 7 are fixedly connected at the third through holes between the separation tank 1 and the water collecting tank 2, between the water collecting tank 2 and the compound tank 3, and between the clean water tank 4 and the water collecting tank 2. Support rods 6 are fixedly connected at the four outer corners of the bottom ends of the separation tank 1 and the compound tank 3. The bottom ends of the four support rods 6 are fixedly connected to the same base 5. A reduction motor is fixedly connected to the base 5 below the compound tank 3, and the output shaft of the reduction motor is fixedly connected to the support shaft 310. Since the rotation of the impeller 305 and the stirring rod 306 are driven by the reduction motor, it can be ensured that the two will not generate too strong water flow in the compound tank 3, so there will be no phenomenon that the water flow is too strong to damage the plant roots and affect the growth of microorganisms on the biofilm filler 304.

[0039] Working principle: When using the device for sewage treatment, the sewage can be poured into the separation tank 1. At this time, under the guidance of the guide plate 101 and the guide plate 102, the sewage will flush the top side of the net cylinder 103, thereby completing the initial filtration. After that, the sewage will first enter the net cylinder 103 and flush the water wheel 111 to rotate the rotating rod 108, and then fall on the surface of the filter plate 104 to complete the secondary filtration. The rotating rod 108 can drive the driving wheel 109 to rotate, and the driving wheel 109 drives the driven wheel 106 to rotate through the belt 107, and the driven wheel 106 drives the driven wheel 106 to rotate through the rotating shaft 105. The swing rod 112 rotates, and the pendulum 113 is swung to knock the filter plate 104 to make it vibrate. The vibration of the filter plate 104 can cause the dirt on its surface generated by filtering sewage to gradually disperse and move to both sides, so as to ensure the effect of the filter plate 104 filtering the sewage again; in addition, the rotation of the rotating rod 108 can also drive the mesh cylinder 103 to rotate, so the relative rotation between the mesh cylinder 103 and the discharge plate 110 can be utilized to make the latter scrape the surface of the former, thereby removing the debris in the sewage filtered out of the surface of the mesh cylinder 103, and allowing it to be discharged to the outside of the separation tank 1 along the discharge plate 110;

[0040] The sewage treated by solid-liquid separation will flow along the pipe 7 at the bottom of the separation tank 1 to the water collection tank 2, and will be transported to the composite tank 3 under the action of the water pump in the water collection tank 2. Since the microbial film grown on the surface of the biofilm filler 304 includes a large number of anaerobic bacteria, facultative bacteria, and aerobic bacteria, it can degrade the organic pollutants in the sewage into carbon dioxide and water, degrade the organic nitrogen into ammonia nitrogen, and degrade the organic phosphorus into phosphate. Thereafter, part of the ammonia nitrogen is oxidized into nitrate, and then denitrified into nitrogen gas. Part of the ammonia, nitrate and phosphate are absorbed by the roots of the plants planted in the planting basket 302 to become nutrients for plant growth. Therefore, the microorganisms bear the main purification function, and the plants provide part of the oxygen while absorbing part of the nutrient-rich substances. In addition, the purpose of purifying sewage can be achieved by cooperating with aeration and electrolysis to remove phosphorus.

[0041] In the above process, the support shaft 310 can be driven to rotate by the reduction motor, and the support shaft 310 drives the impeller 305 to rotate through the first gear 312 to stir the water body. At the same time, the first gear 312 can also drive the stirring rod 306 to rotate itself and revolve along the first gear 312 through the second gear 307. Therefore, the stirring rod 306 can further stir the water body, so that the sewage can produce a complex mixed flow in the composite tank 3, thereby ensuring that the roots of the biofilm filler 304 and the plants planted in the planting basket 302 are fully in contact with the sewage, thereby ensuring the sewage treatment effect. Moreover, since the power of the impeller 305 and the stirring rod 306 comes from the reduction motor, the two will only produce a slow water flow in the composite tank 3, thereby avoiding excessive water flow to damage the plant roots and affect the reproduction of microorganisms;

[0042] Since there are multiple compound tanks 3, and they are connected to each other through the water collecting tank 2 and the pipe 7, the sewage will flow in each compound tank 3 in the form of undercurrent, and finally flow into the clean water tank 4 to be collected, so as to ensure the thoroughness of sewage purification; and during the use of this device, the direction of sewage flowing through several water collecting tanks 2 can be changed by regularly replacing the pipes 7 on the separation tank 2 and the clean water tank 4, so as to achieve the effect of two-way alternating water distribution, so that the plants planted in the planting basket 302 on each compound tank 3 can obtain uniform nutrient-rich substances, so as to maintain the plant's vigorous nutrient-rich substance absorption function, thereby ensuring the sewage treatment effect.

[0043] Example 2

[0044] See attached Figure 5 The present application provides a composite ecological filter tank with bidirectional alternating water distribution. Compared with Example 1, in order to facilitate the regular replacement of the pipe 7 on the separation tank 2 and the clean water tank 4, a pipe connector 701 is fixedly connected to one end of the pipe 7 on the separation tank 1 and the clean water tank 4. The connector 701 can facilitate the disassembly and assembly of the pipe 7 between the separation tank 1 and the separation tank 2 and between the clean water tank 4 and the separation tank 2, and can ensure the convenience during disassembly and the stability after installation.

[0045] Working principle: By operating the pipe connector 701, not only can the disassembly of the pipe 7 on the separation tank 2 and the clean water tank 4 be facilitated, but also the stability and airtightness of the installation of the pipe 7 with the above two can be ensured, thereby facilitating the regular replacement of the pipe 7 on the separation tank 2 and the clean water tank 4, and avoiding the frequent disassembly of the pipe 7 which will cause the connection of the pipe 7 to become loose.

[0046] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A composite ecological filter tank with two-way alternating water distribution, comprising a separation tank (1), a clean water tank (4) and a sewage treatment mechanism, characterized in that: The sewage treatment mechanism includes a plurality of collecting tanks (2) and composite tanks (3) alternately arranged between a separation tank (1) and a clear water tank (4). The separation tank (1) is used for solid-liquid separation of sewage, and the composite tank (3) is used for purification treatment of sewage. Inside the separation tank (1), there are a mesh cylinder (103) and a filter plate (104). The separation tank (1) filters sewage through the mesh cylinder (103) and the filter plate (104). Inside the separation tank (1), a guide plate (102) and a discharge plate (110) are respectively fixedly connected to the top end and one side of the mesh cylinder (103). The sides of the guide plate (102) and the discharge plate (110) close to the mesh cylinder (103) are tangent to the mesh cylinder (103). Inside the separation tank (1), several pendulums (113) are arranged below the filter plate (104). The pendulums (113) are used to strike the filter plate (104). Inside the mesh cylinder (103), there is a water wheel (111). The water wheel (111) is used to drive the rotation of the mesh cylinder (103) and the swing of the pendulums (113).

2. A composite ecological filter with two-way alternating water distribution according to claim 1, characterized in that: Inside the separation tank (1), a guide plate (101) is fixedly connected to one side of the top end of the mesh cylinder (103). The guide plate (101) and the guide plate (102) form an inverted "eight" shape. An outlet is opened in the middle of the side of the separation tank (1) away from the guide plate (102). The discharge plate (110) is fixedly connected to the separation tank (1) at the outlet, and the discharge plate (110) is in the shape of a "丿". A rotating rod (108) is rotatably connected to the top end of one inner wall of the separation tank (1). The water wheel (111) and the mesh cylinder (103) are both fixedly connected to the outside of the rotating rod (108).

3. A composite ecological filter with two-way alternating water distribution according to claim 2, characterized in that: A rotating shaft (105) is rotatably connected to the bottom end of one inner wall of the separation tank (1). A plurality of swing rods (112) are fixedly and equidistantly connected to the outside of the rotating shaft (105). The number of the pendulums (113) is the same as that of the swing rods (112) and they correspond one by one. The pendulums (113) are fixedly connected to one end of the swing rods (112). The materials of the pendulums (113) and the swing rods (112) are both rubber. First through holes are opened at the top and bottom of the other side of the separation tank (1). One ends of the rotating rod (108) and the rotating shaft (105) extend to the outside of the separation tank (1) at the two first through holes respectively.

4. A composite ecological filter with two-way alternating water distribution according to claim 3, characterized in that: One ends of the rotating rod (108) and the rotating shaft (105) outside the separation tank (1) are respectively connected with a driving wheel (109) and a driven wheel (106) by key connection. The driving wheel (109) and the driven wheel (106) are both belt wheels, and the outside of the driving wheel (109) and the driven wheel (106) is sleeved with the same belt (107). The diameter of the driving wheel (109) is smaller than that of the driven wheel (106). The filter plate (104) is in a curved shape with a high middle part and low sides.

5. The composite ecological filter with two-way alternating water distribution according to claim 1, characterized in that: A mesh plate (303) is provided at the top of the composite trough (3), a circular opening is provided in the middle of the mesh plate (303), and a planting basket (302) is provided at the circular opening of the mesh plate (303), a fixing ring (301) is fixedly connected to the top of the outer side of the planting basket (302), the diameter of the fixing ring (301) is larger than the diameter of the circular opening, and a plurality of biofilm fillers (304) are fixedly connected to the inner wall of the top of the mesh plate (303) at the outer side of the circular opening at equal distances.

6. The composite ecological filter with two-way alternating water distribution according to claim 1, characterized in that: A second through hole is provided at the middle of the inner wall at the bottom end of the composite groove (3), and the composite groove (3) is rotatably connected to a support shaft (310) at the second through hole, the top end of the support shaft (310) is connected to a first gear (312) via a key, the top end of the first gear (312) is fixedly connected to a pulsator (305), the outer top end of the support shaft (310) is fixedly connected to a bearing (309), and the outer side of the bearing (309) is rotatably connected to a plurality of connecting shafts (308) at equal intervals.

7. A composite ecological filter with two-way alternating water distribution according to claim 6, characterized in that: One end of the connecting shaft (308) is connected to a second gear (307) via a key, one side of the second gear (307) is fixedly connected to a plurality of stirring rods (306), the inner wall of the bottom end of the composite groove (3) is fixedly connected to a third gear (311) at the outer side of the second through hole, the third gear (311) is a bevel gear ring, the first gear (312) and the second gear (307) are both bevel gears, and the second gear (307) is meshed with both the first gear (312) and the third gear (311).

8. The composite ecological filter with two-way alternating water distribution according to claim 6, characterized in that: A third through hole is provided at one side of the bottom of the separation tank (1), at both sides of the bottom of the water collecting tank (2), at both sides of the bottom of the composite tank (3), and at one side of the bottom of the clean water tank (4). Pipes (7) are fixedly connected at the third through holes between the separation tank (1) and the water collecting tank (2), between the water collecting tank (2) and the composite tank (3), and between the clean water tank (4) and the water collecting tank (2). Support rods (6) are fixedly connected at the four outer corners of the bottom of the separation tank (1) and the composite tank (3). The bottom ends of the four support rods (6) are fixedly connected to the same base (5). A reduction motor is fixedly connected to the base (5) below the composite tank (3), and the output shaft of the reduction motor is fixedly connected to the support shaft (310).

9. A composite ecological filter with two-way alternating water distribution according to claim 8, characterized in that: A pipeline connector (701) is fixedly connected to one end of the pipeline (7) on the separation tank (1) and the clean water tank (4).

Images